JPH11220723A - Multiple dwelling house video recording system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a visitor at an entrance to perform selection and display confirmation of plural video recording screens during one's absence, without mounting one screen or more of a recording memory of an accommodation machine. SOLUTION: A computer device 4 is equipped with a video input unit 405 for capturing a video signal picked up by a TV camera unit 101 of a multiple entrance machine 1, a storage unit 402, a video output unit 405, a storage unit 402, a video output unit 404, and a serial communication unit 406 for multiplying to an analog video signal of recording data and outputting accommodation number data of a destination. Accommodation machines 2a, 2b, 2c and 2d are equipped with an AD conversion circuit, a video memory, a DA conversion circuit, an image display panel, and an accommodation CPU which transmits selection information corresponding to a selected image to the computer device and receives the accommodation number data outputted from the computer device. Selection and display confirmation of plural recording screens in one's absence of a visitor at an entrance become possible, without mounting one or more screens of the recording memory of the accommodation machine by providing the computer device, which enables a record of recording and reproducing distribution of the video of the visitor at the entrance by way of a main device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording system for a dwelling house, and more particularly, records a video signal of a visitor photographed by a foyer installed at the foyer of a dwelling house as necessary, and records it in a living room. A computer device having a function of selecting and reproducing a video signal recorded by selecting a pointing device of the installed room unit, and having a function of reproducing the video signal. The present invention relates to a recording system for an apartment house having a function of displaying and temporarily storing a video signal.

[0002]

2. Description of the Related Art Conventionally, a recording system for a condominium as shown in FIG. 6 has been proposed. The recording system for an apartment house shown in FIG. 6 includes a collective entrance machine 6 installed at the entrance of an apartment house and a room unit 7 installed in each living room.
a, 7b, 7c, 7d, a main unit 8, a control room master unit 9 installed in a control room, a TV camera device 10 for photographing a manuscript of a circular or a notice for posting, and a manuscript sent to a main line when the manuscript is distributed. A video switching button 11 for switching a video signal to be switched is provided.

[0003] The collective entrance machine 6 is used by visitors to room appliances 7a and 7a.
b, 7c, 7d, a dialing numeric keypad 603 for inputting a room number for calling, a microphone 602, and a speaker 604 used for answering a call with a resident of the room units 7a, 7b, 7c, 7d. And a television camera unit 601 for confirming the user's video.

[0004] The control room master unit 9 comprises room units 7a, 7b, 7
A ten-keypad 902a for selecting a room number for calling c and 7d, and a handset 90 used for receiving a call with a resident of the room units 7a, 7b, 7c and 7d.
1 is provided. As shown in FIG. 7, the main device 8 includes a control room main unit interface circuit 801, a main line interface circuit 806, and a collective entrance unit interface circuit 8.
07, a TV camera device interface circuit 802 connected to the TV camera device 10, a video switch button interface circuit 803 connected to the video switch button 11, and a video signal from the TV camera unit 601 of the collective entrance device 6 and the TV camera device 10. Video switching circuit 80 for switching
8, an audio bypass unit 804 for relaying an audio signal,
A data bypass unit 805 for relaying a data signal,
Video modulation circuit 81 for modulating and transmitting a video signal to the main line
5. A video demodulation circuit 822 for receiving and demodulating the video signal of the entrance hall 6, an audio demodulation circuit 814 for receiving and demodulating the main line audio signal, an audio modulation circuit 813 for modulating and transmitting the audio signal to the main line, data for the main line A data demodulation circuit 817 for receiving and demodulating the signal; a data modulation circuit 816 for modulating and transmitting the data signal to the main line; an audio demodulation circuit 819 for receiving and demodulating the audio signal of the collective entrance device 6; An audio modulation circuit 818 for modulating and transmitting a data, and a data demodulation circuit 82 for receiving and demodulating a data signal of the collective entrance device 6
1. A data modulation circuit 820 for modulating and transmitting a data signal to the collective entrance apparatus 6 is provided. An audio demodulation circuit 809 that receives and demodulates an audio signal of the manager room master unit 9 and an audio modulation circuit 81 that modulates and transmits an audio signal to the manager room master unit 9.
0, a data demodulation circuit 811 for receiving and demodulating a data signal of the manager room master unit 9, and a data modulation circuit 812 for modulating and transmitting a data signal to the manager room master unit 9.

As shown in FIG. 8, a living room unit 7a includes a main line interface circuit 701, a video demodulation circuit 702, an ADC circuit 703 for digitizing a video signal, and a synchronization separator for separating and outputting horizontal and vertical synchronization signals of the video signal. A circuit 704, a video memory 705 for temporarily storing one screen of the digitized video signal, and a video memory controller 706 for controlling the reading or writing of the recorded data in the video memory in accordance with the timing of the horizontal and vertical synchronization signals of the video signal. A DAC circuit 707 for converting video data into an analog video signal, a video switching circuit 708 for switching between a received video signal and a recorded video signal,
An image display panel driving circuit 709, an image display panel 710 for displaying a video of a visitor at the entrance of the apartment house, a data demodulation circuit 711 for demodulating a data signal received from the main line,
Data modulation circuit 71 for modulating and transmitting a data signal to the trunk line
2. Recording memory 713 for recording video of a plurality of screens as digital signals, CPU 714 for controlling data communication of living room units and recording, talking, and calling of images, recording memory display LED 715 for displaying the presence or absence of a recording screen for each screen ,
A recording memory selection button 716a for selecting a recorded screen,
Answering button 716b for enabling or disabling automatic recording of a visitor whose resident is away, own station number setting circuit 717 for setting a room number of a living room unit, and audio demodulation circuit 718 for demodulating an audio signal received from the main line. A voice modulation circuit 719 for modulating and transmitting a voice signal to the main line, an audio interface circuit 720 for selecting a call signal or a call signal under the control of the CPU 714, a receiver amplifier 721, a microphone amplifier 722, a calling speaker amplifier 723, and a ringing sound. A speaker 725 for outputting and a handset 724 for receiving a call with a visitor of the collective entrance device 6 and having a built-in receiver 724a and a microphone 724b are provided.

[0006] The collective entrance machine 6 is connected to a terminal T85 of the main device 8 via a transmission line L61, and the control room master device 9 is connected to a terminal T81 of the main device 8 via a transmission line L91. The TV camera device 10 is connected to the terminal T83 of the main device 8 via the transmission line L111,
1 is connected to a terminal T82 of the main device 8 via a transmission line L101. Terminal T84 of main device 8 is connected to trunk line L8.
1 and the room unit 7 via the branching device B2d and the branch line L82.
d, and connected to the terminal T7d of the living room unit 7c via the next main line L83, the branching device B2c, and the branching line L84.
2c is connected to the next trunk line L85, the branching device B2b, and the branch line L2.
86, it is connected to the terminal T7b of the living room unit 7b, and the branching device B2b is further connected to the next trunk line L87 and the branching device B2a.
And the branch line L88, the terminal T7a of the living room unit 7a is connected to the terminal T7a, and the branch unit B2a is further connected to the terminator TM2 via the next trunk line L89.

The terminal T81 of the main unit 8 is connected to the control room main unit interface circuit 801, the terminal T82 is connected to the video switching button interface circuit 803, and the terminal T83 is connected to the TV camera device interface circuit 80.
2, terminal T84 is connected to main line interface circuit 806, and terminal T85 is connected to collective entrance device interface circuit 807. The control room master device interface circuit 801 includes an audio demodulation circuit 809.
Alternatively, the data bypass unit 804 is connected to the audio bypass unit 804 via the audio modulation circuit 810, and is connected to the data bypass unit 80 via the data demodulation circuit 811 or the data modulation circuit 812.
5 respectively. Main line interface circuit 806
Are connected to the audio bypass unit 804 via the audio demodulation circuit 814 or the audio modulation circuit 813, respectively, and connected to the data bypass unit 805 via the data demodulation circuit 817 or the data modulation circuit 816, respectively. The collective entrance device interface circuit 807 includes an audio demodulation circuit 819.
Alternatively, it is connected to the audio bypass unit 804 via the audio modulation circuit 818, and connected to the data bypass unit 805 via the data demodulation circuit 821 or the data modulation circuit 820. TV camera device interface circuit 8
02 is connected to one input of a video switching circuit 808, and the collective entrance device interface circuit 807 is connected to the other input of the video switching circuit 808 via a video demodulation circuit 822, and the output of the video switching circuit 808 is ,
It is connected to the main line interface circuit 806 via the video modulation circuit 815, and the video switch button interface circuit 803 is connected to the control input of the video switch circuit 808.

The terminal T7a of the living room unit 7a is connected to the main line interface circuit 701, and the video signal output of the main line interface circuit 701 is supplied to the video demodulation circuit 702.
Through the input of the ADC circuit 703 and the synchronization separation circuit 70
4 and one input of the video switching circuit 708, and the output of the ADC circuit 703 and the sync separation circuit 70
4 are connected to the inputs of the video memory controller 706, respectively. Video memory controller 706
Is connected to the other input of the video switching circuit 708 via a DAC circuit 707, one bidirectional bus signal of the video memory controller 706 is connected to the video memory 705, and the other bidirectional bus signal is
4 first bidirectional ports. CPU7
The output of the video switching circuit 708 is connected to the switching control input of the video switching circuit 708, and the output of the video switching circuit 708 is connected to the image display panel 710 via the image display panel driving circuit 709. The data signal output of the trunk interface circuit 701 is connected to the input port of the CPU 714 via the data demodulation circuit 711,
One data signal input is connected to an output port of the CPU 714 via the data modulation circuit 712, respectively. The bidirectional bus signal of the recording memory 713 is connected to the second bidirectional port of the CPU 714 and the recording memory display LED 715
Is connected to the output port of the CPU 714, and the recording memory selection button 716a and the answering set button 716
b terminal and own station number setting circuit 717
Each is connected to an input port of U714. The anode terminal of the recording memory display LED 715 is connected to the power supply VCC, and the recording memory selection button 716a and the answering set button 716b
Is connected to the reference potential GND.

An audio signal output of the trunk interface circuit 701 is connected to an input of an audio interface circuit 720 via an audio demodulation circuit 718, and an audio signal input of the trunk interface circuit 701 is connected to the audio modulation circuit 7.
19 is connected to the output of the audio interface circuit 720. Audio interface circuit 720
Is output to the receiver 724 built in the telephone handset 724 via the receiver amplifier 721.
a, and the transmission signal input of the audio interface circuit 720 is supplied to the microphone 724 b built in the telephone handset 724 via the microphone amplifier 722.
The ringing signal output of the audio interface circuit 720 is connected to the ringing speaker 725 via the ringing speaker amplifier 723. An output port of the CPU 714 is connected to a call / ring tone selection control input of the audio interface circuit 720.

[0010] In the recording system for an apartment house constructed as described above, the visitor presses (presses) the ten-keypad 603 provided on the entrance apparatus 6 to input, for example, the room number of the room unit 7a. By doing the entrance door machine 6
The ringing signal S61 generated and transmitted in step (1) is: the entrance door 6 → the transmission line L61 → the terminal T85 of the main unit 8 → the entrance gateway interface circuit 807 → the data demodulation circuit 821 → the data bypass unit 805 → the data modulation circuit 816 → the trunk interface. Circuit 806 → Terminal T84 of main unit 8 → Main line L81 → Branch B2d → Main line L83 → Branch B2c →
Main line L85 → Branch B2b → Main line L87 → Branch B2a
It is transmitted to the room unit 7a via the route of the branch line L88 → the room unit 7a. At the same time, the video signal S62 of the visitor photographed by the television camera unit 601 of the collective entrance device 6 is collected by the collective entrance device 6 → the transmission line L61 → the terminal T85 of the main device 8 → the collective entrance device interface circuit 807 → the video demodulation circuit 822.
→ Video switching circuit 808 → Video modulation circuit 815 → Main line interface circuit 806 → Terminal T84 of main device 8 →
Main line L81 → Branch B2d → Main line L83 → Branch B2c
→ Main line L85 → Branch B2b → Main line L87 → Branch B2
a → branch line L88 → room unit 7a.

Next, a case will be described in which a circulation or a notice of a notice is distributed by video from the management room of the apartment house. When the video distributor presses (presses) the channel selection numeric keypad 902a provided in the control room master unit 6 and inputs, for example, the room number of the room room unit 7a, the call generated and transmitted by the control room master unit 9 is transmitted. The signal S91 is transmitted from the control room master unit 9 to the transmission line L91.
Terminal T81 of main device 8 → control room main unit interface circuit 801 → data demodulation circuit 811 → data bypass unit 805 → data modulation circuit 816 → trunk line interface circuit 806 → terminal T84 of main device 8 → trunk line L81 → branch device B2d → trunk line. L83 → Branch B2c → Main line L85 →
Branch B2b → Trunk line L87 → Branch B2a → Branch line L8
8 → transmitted to the room unit 7a through the route of the room unit 7a.

Next, the video switching button 11 is switched to the TV camera device 10 side so that the circular
An image is taken with the camera device 10. A video signal S obtained by photographing a circular or bulletin guide document photographed by the TV camera device 10
Reference numeral 101 denotes a TV camera device 10 → transmission line L111 → terminal T83 of main device 8 → TV camera device interface circuit 802 → video switching circuit 808 → video modulation circuit 815.
→ Main line interface circuit 806 → Terminal T of main unit 8
84 → trunk line L81 → branch unit B2d → trunk line L83 → branch line B2c → trunk line L85 → branch unit B2b → trunk line L87 → branch unit B2a → branch line L88 → room unit 7a.

From the terminal T7a, the trunk line interface circuit 7
The call signal 711a received via the “01” is demodulated by the data demodulation circuit 711 into a serial call signal 711b in which digital signals of “1” and “0” are arranged in time sequence, and the CPU 714
Is input to The room unit 7a that has received the call signal 711b
When the destination number of the calling signal 711b matches the own number 717a read from the own number setting circuit 717, the CPU 714 determines whether the video switching circuit 7
08, the video signal 702a received from the terminal T7a via the main line interface circuit 701 is demodulated by the video demodulation circuit 702, and the analog video signal 702b output from the video demodulation circuit 702 is selectively output by the video switching circuit 708. , Image display panel drive circuit 709
To the image display panel 710 to display a video of a visitor at the collective entrance or a video of a circulation or a notice posted from the management room. At the same time, the audio interface circuit 720 is controlled, and a ringing tone 725a is sounded from the speaker 725 via the calling speaker amplifier 723. When the answering machine set button 716b is set,
The analog video signal 702b of the video demodulation circuit 702 is converted into a digital video signal 703a by the ADC circuit 703, and is adjusted via the video memory controller 706 to the timing of the TV horizontal / vertical synchronization signal 704a output from the synchronization separation circuit 704. The digital image data in which one screen is temporarily stored in the video memory 705 is stored in the video memory 705 → video memory controller 706 → C
The data is transferred via the path from the PU 714 to the recording memory 713, and is recorded as a still image in an empty area of the recording memory 713. At the same time, the CPU 714 turns on the recording display LED 715 corresponding to the recording area. Here, an example of a four-screen recording display will be described. When playing back an image recorded in a room unit, the resident must first use the recording display LED.
It is checked whether or not the LED 715 is lit. If any of the LEDs is lit, it is determined that there is a recording, and the recording selection button 716a arranged next to the lit LED is pressed (pressed). I do. The CPU 714 of the room unit presses (presses)
The number of the operated recording selection button 716a is read, and the selected recorded image data is stored in the recording memory 713 → CPU 71
4 → Video memory controller 706 → Video memory 7
Transfer on the 05 route. The image data once transferred to the video memory 705 and temporarily stored is
→ Video memory controller 706 → DAC circuit 707
The analog image signal 70 read out in pixel units along the path
7a. The CPU 714 is a video switching circuit 7
08 is switched and the output signal 70 of the DAC circuit 707 is controlled.
7a is selectively output from the video switching circuit 708, and the still image video of the visitor at the entrance of the apartment house recorded from the image display panel 710 via the image display panel driving circuit 709 or the circulation or notice guide sent from the management room. The video is played back.

[0014]

However, if the resident is absent when the visitor calls the living room unit from the collective entrance unit in the conventional recording system for collective housing, a video of the visitor is stored. Memory elements are required for each room unit. Furthermore, even when messages such as circulars and notices are sent from the administration room to residents, prepare manuscript paper every time,
The original must be photographed by the TV camera device and cannot be easily edited, saved, or reproduced. Furthermore, it is necessary to separately install a memory device for recording for recording of circulation and notice of notice in the room unit, so that the room unit becomes expensive and a large-capacity recording memory device is required to record many images. Mounting is required. In addition, although a previously delivered image can be selected and displayed from a room unit, there is a problem that necessary information cannot be selected and received and displayed as in the Internet.

[0015] The present invention has been made to solve such a problem, and automatically records a video of a visitor at the entrance, and converts a video image recorded by selecting a pointing device of a living room unit. By connecting a computer device that can be selected and played back and that can be edited using software to the main unit, recorded video of multiple visitors can be recorded without having a full screen recording memory for each room unit. It is an object of the present invention to provide a recording system for an apartment house that can be confirmed.

[0016]

In order to achieve the above object, a recording system for an apartment house according to the present invention is provided at an entrance hall, provided with a TV camera unit for photographing a visitor, Installed in each room, T
Monitors the image of the visitor photographed by the V camera unit, and connects with the living room unit that talks with the visitor and the collective entrance unit via the transmission line, and connects with the room unit via the main line, branch, and branch line. And a video recording system for capturing an analog video signal of a visitor photographed by a TV camera unit of a collective unit, comprising: a computer device and a main device connected via a transmission line. An input unit, a storage unit for storing the recording data of the analog video signal captured by the video input unit as a digital signal, a video output unit for transmitting the recording data digitally stored in the storage unit as an analog video signal, Multiplexed with the analog video signal of the recording data sent from the output unit,
A serial communication unit that outputs the destination room number data, the room unit converts the analog video signal sent from the video output unit into an analog-to-digital converter, and converts the digital video signal digitized by the analog-to-digital converter into a digital signal. A video memory for temporarily storing, a DA conversion circuit for converting a digital video signal temporarily stored in the video memory to an analog video signal, and an image display panel for displaying the analog video signal converted by the DA conversion circuit. A pointing device for selecting an image displayed on the image display panel, and a living room unit CPU for transmitting selection information corresponding to the image selected by the pointing device to the computer device and receiving room number data output from the computer device. It is provided with.

In this recording system for a condominium, a visitor depresses (presses) the ten-key operation switch of the entrance hall.
If the resident has previously set the absence recording function when operating the calling room unit, the video of the entrance visitor taken by the TV camera unit of the collective entrance unit is displayed on the computer connected to the main unit. Recorded together with the date, time, and room number information, and when the resident cancels the absence recording setting,
If there is an absence recording and if there is a recording, a recording list or an image composed of recorded images is automatically distributed from the computer device to the room unit and displayed on the image display panel. Presence or absence can be confirmed, and the recorded video of the visitor at the time of absence recording setting can be distributed and confirmed by selecting a screen to be viewed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a recording system for an apartment house according to the present invention will be described below with reference to the drawings. The recording system for an apartment house shown in FIG. 1 is a collective entrance machine 1 installed at the entrance of an apartment house, living room machines 2a, 2b, 2c, 2d installed in each living room, and a main device installed in a management room. 3, a computer device 4 and an image input device 5.

The collective entrance machine 1 is provided for visitors to use the living room units 2a, 2a
b, a numeric keypad 103 for inputting a room number for calling 2c, 2d, a microphone 102 and a speaker 104 used for receiving a call with a resident of the room units 2a, 2b, 2c, 2d, a visitor A television camera unit 101 for checking the video is provided.

The computer device 4 includes a central processing unit 401, a storage unit 402, an image input device interface unit 403, a video output unit 404, a video input unit 405, a serial communication unit 406,
A serial communication unit 407 is provided, and each unit is mutually connected by a common bus 408. Main device 3
Is the main line interface circuit 317 as shown in FIG.
, An entrance circuit interface circuit 318, and a video modulation circuit 307 for modulating and outputting a video signal to the main line. A video input buffer circuit 301 for inputting a video signal from a terminal T31, and a video signal from a terminal T32. A video output buffer circuit 302 for outputting, and a video demodulation circuit 3 for receiving and demodulating a video signal of the collective entrance apparatus 1
12, an audio demodulation circuit 308 for receiving and demodulating the main line audio signal, an audio modulation circuit 309 for modulating and transmitting the audio signal to the main line, a data demodulation circuit 310 for receiving and demodulating the main line data signal, A data modulation circuit 311 for modulating and transmitting the data signal, an audio demodulation circuit 313 for receiving and demodulating the audio signal of the collective entrance device 1, an audio modulating circuit 314 for modulating and transmitting the audio signal to the collective entrance device 1, Data demodulation circuit 3 for receiving and demodulating the data signal of entrance machine 1
15 and a data modulation circuit 316 that modulates and transmits a data signal to the collective entrance apparatus 1. Further, data input buffer circuits 304 and 306 for receiving a data signal from the computer device 4 and a data output buffer circuit 30 for modulating and transmitting the data signal to the computer device 4
3 and 305 are provided.

As shown in FIG. 3, the living room unit 2a includes a trunk interface circuit 201 and a video demodulation circuit 202.
An ADC circuit 203 for digitizing a video signal;
A synchronization separation circuit 204 for separating and outputting the horizontal and vertical synchronization signals of the video signal, a video memory 205 for temporarily storing the video signal for one screen digitally, and a timing of the horizontal and vertical synchronization signals of the video signal, Video memory controller 206 for controlling reading of recorded data from video memory or writing of recorded data to video memory
A DAC circuit 207 for converting digital video data into an analog video signal, and an image display panel driving circuit 2
08 and an image display panel 209 for displaying a video or a circular notice or a notice of a visitor at the entrance of the apartment house. Further, a data demodulation circuit 210 for demodulating a data signal received from the main line, a data modulation circuit 211 for modulating and transmitting the data signal to the main line, and controlling data communication and image recording, calling, and calling of a plurality of room units. CPU
212 and a pointing device 21 that is installed so as to overlap the image display panel 209 to select an image to be viewed.
4 and pointing device interface circuit 21
3 and own station number setting circuit 2 for setting the room number of the room unit
15, an audio demodulation circuit 216 for demodulating an audio signal received from the trunk, an audio modulation circuit 217 for modulating and transmitting the audio signal to the trunk, and an audio interface circuit 21 for selecting a call signal or a call signal under the control of the CPU 212.
8, a receiver amplifier 219, and a microphone amplifier 220
, A speaker amplifier 221 for calling, a speaker 223 for sounding a ringing sound, a receiver 222a and a microphone 2 used for answering a call with a visitor of the collective entrance device 1.
Handset 222 having a built-in 22b and CPU 212
And an absence recording button 224 for inputting an absence recording signal.

The collective entrance apparatus 1 is connected to a terminal T38 of the main unit 3 via a transmission line L11. The video output unit 404 of the computer device 4 is connected to the transmission line L41.
The video input unit 405 of the computer device 4 is connected to the terminal T32 of the main device 3 via the transmission line L42, and the serial communication unit of the computer device 4 is connected to the terminal T31 of the computer device 4. 406
Is connected to a terminal T33 of the main device 3 via a transmission line L43, and an output port of the serial communication unit 406 of the computer device 4 is connected to a terminal T34 of the main device 3 via a transmission line L44. Have been. An input port of the serial communication unit 407 of the computer device 4 is connected to a terminal T35 of the main device 3 via a transmission line L45, and an output port of the serial communication unit 407 of the computer device 4 is connected via a transmission line L46. It is connected to terminal T36 of main device 3. Further, the image input interface unit 403 of the computer device 4
Is connected to the image input device 5 via the transmission line L51.

The terminal T37 of the main unit 3 is connected to the main line L31.
And the room unit 2d via the branching device B1d and the branch line L32.
Is connected to the terminal T2c of the room unit 2c via the next trunk line L33, the branching device B1c and the branching line L34, and further connected to the branching device B1.
c is the next trunk line L35, branching device B1b and branch line L3
6 is connected to the terminal T2b of the living room unit 2b, and the branching unit B1b is further connected to the terminal T2a of the living room unit 2a through the next trunk line L37 and the branching unit B1a and the branching line L38. , Are connected to the terminator TM1 via the next trunk line L39.

The terminal T37 of the main device 3 is connected to the main line interface circuit 317, and the terminal T38 is connected to the collective entrance device interface circuit 318. Also,
The terminal T31 is connected to the input of the video modulation circuit 307 via the video input buffer circuit 301, and the terminal T32
Are respectively connected to the output of the video demodulation circuit 312 via the video output buffer circuit 302. Video modulation circuit 3
07 is connected to the main line interface circuit 317, and the input of the video demodulation circuit 312 is connected to the collective entrance device interface circuit 318. The trunk interface circuit 317 is connected to the input of the audio demodulation circuit 308 or the output of the audio modulation circuit 309, respectively. The trunk interface circuit 317 is further connected to the input of the data demodulation circuit 310 or the output of the data modulation circuit 311. You. In addition, collective entrance machine interface circuit 3
18 is an input of the audio demodulation circuit 313 or the audio modulation circuit 3
14, and the collective entrance device interface circuit 318 is further connected to the input of the data demodulation circuit 315 or the output of the data modulation circuit 316, respectively. The output of the audio demodulation circuit 308 is connected to the input of the audio modulation circuit 314, and the output of the audio demodulation circuit 313 is connected to the input of the audio modulation circuit 309. Data demodulation circuit 310
Is connected to the input of a data modulation circuit 316, the output of the data demodulation circuit 310 is further connected to a terminal T33 via a data output buffer circuit 303, and the output of the data demodulation circuit 315 is connected to the data modulation circuit 311. Connected to the input, the output of the data demodulation circuit 315 is further connected to the terminal T35 via the data output buffer circuit 305. The input of the data modulation circuit 311 is connected to the terminal T34 via the data input buffer circuit 304, and the input of the data modulation circuit 316 is connected to the data input buffer circuit 30.
6 and a terminal T36.

The terminal T2a of the living room unit 2a is connected to the main line interface circuit 201, and the video signal output from the main line interface circuit 201 is supplied to the video demodulation circuit 202.
Through the input of the ADC circuit 203 and the synchronization separation circuit 20
4, and the output of the ADC circuit 203 and the output of the sync separation circuit 204 are respectively connected to the input of the video memory controller 206. The output of the video memory controller 206 is connected to the image display panel drive circuit 208 via the DAC circuit 207, and one bidirectional bus signal of the video memory controller 206 is connected to the video memory 205 and the other bidirectional bus signal Are connected to the bidirectional ports of the CPU 212, respectively, and the output of the image display panel drive circuit 208 is connected to the image display panel 209. The data signal output of the main line interface circuit 201 is transmitted to the CPU 21 via the data demodulation circuit 210.
The data signal input of the trunk interface circuit 201 is connected to the output port of the CPU 212 via the data modulation circuit 211. The own station number setting circuit 215 is connected to each input port of the CPU 212. The pointing device 214 is connected to the CPU 212 via the pointing device interface circuit 213.

An audio signal output of the trunk interface circuit 201 is connected to an input of an audio interface circuit 218 via an audio demodulation circuit 216, and an audio signal input of the trunk interface circuit 201 is connected to the audio modulation circuit 2.
17 and connected to the output of the audio interface circuit 218. Audio interface circuit 218
Is output to the receiver 222 incorporated in the telephone handset 222 via the receiver amplifier 219.
a, and the transmission signal input of the audio interface circuit 218 is supplied to the microphone 222 b built in the telephone handset 222 via the microphone amplifier 220.
The ringing signal output of the audio interface circuit 218 is connected to the ringing speaker 223 via the ringing speaker amplifier 221. An output port of the CPU 212 is connected to a call / ring sound selection control input of the audio interface circuit 218. CPU212
Is connected to an absence recording button 224 for inputting an absence recording signal.

In the recording system for an apartment house constructed as described above, a visitor presses (presses) the ten-key pad 103 provided on the entrance apparatus 1 to operate the room apparatus 2a.
The serial data signal S11 generated and transmitted by the collective entrance apparatus 1 by inputting the room number of the collective entrance apparatus 1 →
Transmission line L11 → terminal T38 of main device 3 → collective entrance device interface circuit 318 → data demodulation circuit 315 → data modulation circuit 311 → main line interface circuit 317 → terminal T37 of main device 3 → main line L31 → branch device B1d → main line L33 → It is transmitted to the living room unit 2a on the route of the branching device B1c → the main line L35 → the branching line B1b → the main line L37 → the branching device B1a → the branch line L38 → the living room unit 2a. At the same time, collective entrance machine 1
The video signal S12 of the visitor photographed by the TV camera unit 101 is collected from the entrance device 1 → the transmission line L11 → the terminal T38 of the main device 3 → the interface device 31 for the entrance device
8 → Video demodulation circuit 312 → Video output buffer circuit 3
02 → terminal T32 of main device 3 → transmission line L42 → video input unit 405 of computer device 4 → central processing unit 401 → video output unit 404 → transmission line L41
→ Terminal T31 of main device 3 → Video input buffer circuit 30
1 → Video modulation circuit 307 → Main line interface circuit 317 → Terminal T37 of main device 3 → Main line L31 → Branch B
1d → main line L33 → branch unit B1c → trunk line L35 → branch unit B1b → trunk line L37 → branch unit B1a → branch line L38 → room unit 2a.

The serial data signal 210a received from the terminal T2a of the room unit 2a via the main line interface circuit 201 is "1", "0" by the data demodulation circuit 210.
Are demodulated into a serial data signal 210b arranged in time sequence and input to the CPU 212. CP of the room unit 2a that has received the serial data signal 210b
U212, as shown in FIG. 4A, the destination number included in the serial data signal 212b and the own station number setting circuit 21.
If the room number 215a read from 5 matches,
The video signal 202a received from the terminal T2a via the main line interface circuit 201 is converted to a video demodulation circuit 202.
The analog video signal 202b demodulated and output by
The circuit 203 converts the signal into a digital video signal 203a,
One, via the video memory controller 206,
The video signal is temporarily stored in the video memory 205 for each screen in synchronization with the timing of the horizontal and vertical synchronization signals 204a of the video signal output from the synchronization separation circuit 204. A video signal 207a is generated and output, and output to the image display panel 209 via the image display panel driving circuit 208, thereby displaying a visitor at the collective entrance. At the same time, the audio interface circuit 218 is controlled so that the speaker 223 makes the ringing sound 223a sound through the calling speaker amplifier 221.

Next, the case where the absence recording set is performed in the room unit 2a will be described. When the resident goes out and presses (presses) the absence recording button 224 of the room unit 2a, the CP
U212 confirms the pressing (pressure) operation of the absence recording button 224, and uses the control command and the room number 215a of its own station as shown in FIG.
The digital signals "1" and "0" shown in FIG. 3B are output as serial data signals 211b arranged in time sequence. After the serial data signal 211b is input to the data modulation circuit 211, the serial data signal 211b is transmitted as a serial data signal 211a modulated by the data modulation circuit 211 via the trunk line interface circuit 201, and the terminal T2a of the living room unit 2a → the branch line L38 → Turnout B1a → Trunk L37 → Turnout B1b → Trunk L35 → Turnout B1c → Trunk L33 →
The serial data signal 310a transmitted through the route of the branching device B1d → the main line L31 → the terminal T37 of the main device 3 → the main line interface circuit 317 is input to the data demodulation circuit 310, and the data demodulation circuit 310 outputs digital signals of 1 and 0. Serial data signal 310b arranged in time sequence
Data output buffer circuit 303 → terminal T33 of main device 3 → transmission line L43 → computer device 4
Serial communication unit 406 → central processing unit 40
The data is input to the computer device 4 through the path 1. further,
The central processing unit 401 decodes the input serial data signal, confirms that the absence recording button 224 of the living room unit 2a has been pressed (pressed), sets the living room unit 2a to the absence recording standby state, and FIG. The video output unit 404 of the computer device 4 generates and outputs an analog video signal on the screen for displaying the standby state of the absence recording shown in ()), and the video output unit 404 of the computer device 4 →
Transmission line L41 → terminal T31 of main device 3 → video input buffer circuit 301 → video modulation circuit 307 → main line interface circuit 317 → terminal T37 of main device 3 → main line L3
1 → Branch B1d → Trunk L33 → Branch B1c → Trunk L
The signal is transmitted to the living room unit 2a through the route of 35 → branch unit B1b → trunk line L37 → branch unit B1a → branch line L38 → room unit 2a.
Next, the central processing unit 401 of the computer device 4
4 instructs the room unit 2a to receive the distribution image.
A serial data signal S44 composed of the control command shown in (a) and the room number of the room unit 2a is assembled, and the serial communication unit 406 sends the serial communication unit 406 of the computer device 4 → the transmission line L44 → the main device 3
Terminal T34 → data input buffer circuit 304 → data modulation circuit 311 → main line interface circuit 317 → terminal T37 of main unit → main line L31 → branching device B1d → main line L
33 → Branch B1c → Trunk line L35 → Branch B1b → Trunk line L37 → Branch B1a → Branch line L38 → Transmission to the room unit 2a via the route of the room unit 2a.

The room unit 2a receives the serial data signal 21 from the terminal T2a via the trunk interface circuit 201.
0a is received, the data demodulation circuit 210 receives “1”,
The digital signal of “0” is demodulated into a serial data signal 210 b arranged in time sequence, and the CPU 212
Is input to Upon receiving the serial data signal 210b, the CPU 212 of the living room unit 2a transmits the serial data signal 21b.
If the destination number of the terminal 2b matches the room number 215a of the own station read from the own station number setting circuit 215, the terminal T
2a is demodulated by a video demodulation circuit 202 from a video signal 202a received via a main line interface circuit 201, and an analog image signal 202b output therefrom is converted into an ADC circuit 20.
3 and converts the digital image signal 203a into a digital image signal 203a.
Horizontal and vertical synchronizing signals 204 of the output video signal
The image data for one screen is temporarily stored in the video memory 205 in accordance with the timing of a.
The CPU 21 stops the update of the recording of the image data of No. 5
2 instructs the video memory controller 206. Thereafter, the video memory controller 206 periodically reads out image data for each screen from the video memory 205, generates and outputs an analog video signal 207a from the digital image signal 206a via the DAC circuit 207, and outputs the image display panel drive circuit 208 Through the image display panel 20
9 and continuously displays the standby state of the absence recording on the image display panel 209.

When the absence recording is in the standby state, the visitor can select the ten key 10 provided on the collective entrance machine 1.
3 is pressed (pressed) and, for example, when the room number of the room unit 2a is input, the serial data signal S11 generated by the collective entrance unit 1 is transmitted to the collective entrance unit 1 → the transmission line L11 → the terminal T38 of the main unit 3 → Collective entrance machine interface circuit 318
→ Data demodulation circuit 315 → Data output buffer circuit 3
05 → terminal T35 of main unit 3 → transmission line L45 → serial communication unit 407 of computer unit 4 → central processing unit 401. At the same time, the video signal S12 of the visitor photographed by the television camera unit 101 of the collective entrance device 1 is converted into the collective entrance device 1 → the transmission line L11 → the terminal T38 of the main device 3 → the collective entrance device interface circuit 318 → the video demodulation circuit 312 → Video output buffer circuit 302 → terminal T32 of main device 3 → video input unit 405 of computer device 4 → input to central processing unit 401,
The storage unit 40 is stored as a video file together with the called room number of the called room unit 2a and the called date and time information.
2 is stored.

When the resident of the living room returns home and is in the standby mode, the absence recording button 224 of the room unit 2a is pressed (pressure).
When operated, the CPU 212 confirms the pressing (pressure) operation of the absence recording button 224, and outputs the control command and the own room number 2
From 15a, a serial data signal 211 in which digital signals of "1" and "0" shown in FIG.
Output as b. After this serial data signal 211b is input to the data modulation circuit 211, it is converted as a serial data signal 211a by the data modulation circuit 211 via the trunk interface circuit 201 through the terminal T2a of the living room unit 2a → the branch line L38 → the branch unit B1a. → Trunk line L37
→ Branch B1b → Trunk line L35 → Branch B1c → Trunk line L3
3 → Branch B1d → Main line L31 → Terminal T37 of main device 3
→ The serial communication signal 310a transmitted through the path of the trunk interface circuit 317 is input to the data demodulation circuit 310, and the data demodulation circuit 310 outputs a serial data signal 310b in which digital signals “1” and “0” are arranged in chronological order. After that, the data output buffer circuit 303 → the terminal T33 → the transmission line L43 → the computer device 4
Serial communication unit 406 → central processing unit 40
The data is input to the computer device 4 through the path 1. further,
The central processing unit 401 decodes the input serial data signal, and after confirming that the room unit 2a has pressed (pressed) the absence recording button 224, cancels the absence recording standby state. The central processing unit 401 confirms whether or not there is an absence recording of the room unit 2a from which the standby state of the absence recording has been released. If there is a recording, for example, the absence recording list screen shown in FIG. 5D is synthesized, and if there is no video recording, the non-voice recording screen shown in FIG. 5B is synthesized, and the video output unit 404 of the computer device 4 generates an analog image signal. The video output unit 404 of the computer device 4 → the transmission line L41
→ Terminal T31 of main device 3 → Video input buffer circuit 30
1 → Video modulation circuit 307 → Main line interface circuit 317 → Terminal T37 of main device 3 → Main line L31 → Branch B
1d → main line L33 → branch device B1c → trunk line L35 → branch device B1b → trunk line L37 → branch device B1a → branch line L38 → transmitting to the living room device 2a via the route of the living room device 2a.

Next, the central processing unit 401 of the computer device 4 transmits a control command shown in FIG. 4A and a serial number obtained by packetizing the room number of the room unit 2a in order to instruct the room unit 2a to receive the distribution image. The data signal S44 is assembled, and the serial communication unit 406 sends the serial communication unit 406 of the computer device 4 to the transmission path L4.
4 → terminal T34 of main device 3 → data input buffer circuit 3
04 → data modulation circuit 311 → main line interface circuit 317 → terminal T37 of main device 3 → main line L31 → branch device B1d → main line L33 → branch device B1c → main line L35 → branch device B1b → main line L37 → branch device B1a → branch line L38 →
The data is transmitted to the room unit 2a along the route of the room unit 2a.

The living room unit 2a receives the serial data signal 21 from the terminal T2a via the main line interface circuit 201.
0a is received, demodulated by a data demodulation circuit 210 into a serial serial data signal 210b arranged in time sequence of digital signals of 1 and 0, and input to the CPU 212.
C of the room unit 2a that has received the serial data signal 210b
When the destination number of the serial data signal 212b matches the room number 215a of the own station read from the own station number setting circuit 215, the PU 212 outputs the video signal 2 received from the terminal T2a via the trunk interface circuit 201.
02a is demodulated by a video demodulation circuit 202, and an analog image signal 202b output is converted to a digital image signal 203a by an ADC circuit 203. The video signal output from a sync separation circuit 204 via a video memory controller 206 is output from the horizontal and vertical directions. The image data for one screen is stored in the video memory 205 according to the timing of the synchronization signal 204a.
After that, the CPU 212 instructs the video memory controller 206 to stop updating the recording of the image data in the video memory 205. Thereafter, the video memory controller 206 periodically reads out image data for each screen from the video memory 205, generates and outputs an analog video signal 207a from the digital image signal 206a via the DAC circuit 207, and outputs the image display panel drive circuit 208 Through to the image display panel 209, and continuously displays a message image indicating whether or not there is an absence recording.

When the absence recording list screen shown in FIG. 5 (c) or the absence recording image screen shown in FIG. 5 (d) is displayed, a list or an image desired by the resident is selected and operated with a pointing device. Via the device interface 214 interface circuit 213,
The CPU 212 reads the selection information 213a, assembles the transmission data shown in FIG. 4B in which the selection information 213a and the room number 215a of the own station are packetized, and “1”, “0”.
And outputs a serial data signal 211b in which the digital signals are arranged in time sequence. This serial data signal 21
1b is input to the data modulating circuit 211, and then transmitted from the data modulating circuit 211 as a modulated communication signal 211a via the trunk interface circuit 201 to the terminal T2 of the room unit 2a.
a → branch line L38 → branch unit B1a → trunk line L37 → branch unit B1b → trunk line L35 → branch unit B1c → trunk line L33 → branch unit B1d → trunk line L31 → terminal T37 of main unit 3 → trunk line interface circuit 317 The modulated communication signal 310a is input to the data demodulation circuit 310, where the digital demodulation circuit 310 demodulates the digital signal of 1 and 0 into a serial data signal 310b arranged in time order, and then outputs the data output buffer circuit 303 → terminal T33 →
The signal is transmitted to the computer device 4 via the transmission path L43 → the serial communication unit 406 of the computer device 4 → the central processing unit 401. The central processing unit 401 of the computer device 4 decodes the input serial data signal, and the living room unit 2a The selected recording screen is stored in the storage unit 40
2 and the video output unit 404
Generates and outputs an analog recorded video, and outputs the video output unit 404 of the computer device 4 → the transmission line L 41 → the terminal T 31 of the main device 3 → the video input buffer circuit 301 → the video modulation circuit 307 → the main line interface circuit 317.
→ Terminal T37 of main unit 3 → Main line L31 → Branch B1d →
Main line L33 → Branch B1c → Main line L35 → Branch B1b
→ Main line L37 → Branch B1a → Branch line L38 → Room unit 2
It is transmitted to the room unit 2a through the route a. By repeating the above, an arbitrary recording screen can be checked from the room unit.

When the circulation or the notice of the notice is distributed by video from the management room, the image data S51 obtained by reading the manuscript of the notice of the notice of the notice or the notice by the image input device 5 is
The image data is transmitted through the path of the image input device 5 → the transmission path L51 → the image input device interface unit 403 of the computer device 4 → the central processing unit 401 → the storage unit 402, and is recorded as original data in the storage unit 402 of the computer device 4. The recorded manuscript data of a plurality of circular guides or bulletin guides are combined as a circular guide list screen shown in FIG. 5E or a circular guide image screen shown in FIG. The video output unit 404 of the computer device 4 → the transmission line L41 → the terminal T of the main device 3
31 → video input buffer circuit 301 → video modulation circuit 307 → main line interface circuit 317 → terminal T37 of main device 3 → main line L31 → branching device B1d → main line L33 →
Switch B1c → Main line L35 → Switch B1b → Main line L37
The signal is transmitted to the living room unit 2a through the route of the branch unit B1a, the branch line L38, and the living room unit 2a.

In the living room unit 2a, the composite image signal 202a input from the terminal T2a via the main line interface circuit 201 is input to the video demodulation circuit 202, and the analog image signal 202 demodulated by the video demodulation circuit 202.
b is converted into a digital image signal 203 a by the ADC circuit 203, and
After temporarily storing image data for one screen in the video memory 205 in accordance with the timing of the horizontal and vertical synchronization signals 204a of the video signal output from the synchronization separation circuit 204, the recording and updating of the image data in the video memory 205 is stopped. CPU 212 instructs video memory controller 206 to do so. Thereafter, the video memory controller 206 stores the image data for each screen in the video memory 2.
05, the digital image signal 206
a to the analog video signal 20 via the DAC circuit 207.
7a is generated and output, and is output to the image display panel 209 via the image display panel driving circuit 208.
At 09, a menu screen for circulation or bulletin guidance is displayed.

When the circulation guide list screen shown in FIG. 5E or the circulation guide image screen shown in FIG. 5F is displayed, when the resident selects and operates the list or image desired by the pointing device 214, Via the pointing device interface circuit 213,
The CPU 212 selects the pointing device selection information 21
3a, the selection information 213a and the room number 2 of the own station are read.
The transmission data shown in FIG. 4B obtained by packetizing 15a is assembled, and a serial data signal 211b in which digital signals of "1" and "0" are arranged in time order is output. This serial data signal 211b is
Is input to the terminal T2a of the living room unit 2a → the branch line L38 → the branch unit B1 via the main line interface circuit 201 as the modulated communication signal 211a from the data modulation circuit 211.
a → Main line L37 → Branch B1b → Main line L35 → Branch B
The modulated communication signal 310a output on the route of 1c → main line L33 → branch device B1d → main line L31 → terminal T37 of main device 3 → main line interface circuit 317 is input to data demodulation circuit 310, and “1” is output from data demodulation circuit 310. , "0" are demodulated into a serial data signal 310b arranged in time sequence, and then the data output buffer circuit 303 → the terminal T33 of the main device 3 → the transmission line L43 → the serial communication unit 406 of the computer device 4 → The data is transmitted to the computer device 4 via the path of the central processing unit 401. The central processing unit 401 of the computer device 4 analyzes the received data, searches the selected circular or bulletin guide image from the file of the storage unit 402, and outputs the video. A unit 404 generates and outputs an analog composite image, and outputs Chromatography data system 4 video output unit 404 → the transmission line L41 → main unit 3 of the terminal T31 → the video input buffer circuit 301 → the video modulation circuit 307 →
Main line interface circuit 317 → terminal T3 of main device 3
7 → Main line L31 → Branch B1d → Main line L33 → Branch B
1c → main line L35 → branch unit B1b → trunk line L37 → branch unit B1a → branch line L38 → room unit 2a on the route of room unit 2a
Transmitted to By repeating the above, it is possible to check an arbitrary circulation or a notice guide screen from the room machine.

In the above description, a method of inputting and distributing information on circulation and notices of notice by using the image input device 5 connected to the computer device 4 has been described. It is also possible to distribute recorded information and images previously recorded on a magnetic disk or optical disk. In the above embodiment, the number of room units is 4
Although the description has been made of the case of four or more units, the present invention may be applied to four or more units.
RT, PDP, and EL may be used. If the pointing device can correspond to the switch image on the display screen, a touch panel, a switch array, and a wireless The same effect can be obtained by using a remote control transceiver, a mouse or a trackball.

[0040]

As is apparent from the above description, according to the recording system for an apartment house of the present invention, an existing entrance apparatus with a TV camera, a function of recording or reproducing one screen and a function of selecting a screen by a pointing device are provided. By installing a computer device capable of communicating with a room unit equipped with a computer and capable of recording and reproducing / distributing video recording of a visitor at the entrance via a main device, the recording memory of the room unit can be mounted on one or more screens. Without having to select multiple absence recording surfaces for entrance visitors,
Display confirmation becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a video recording system for an apartment house of the present invention.

FIG. 2 is a block diagram of a main device of the recording system for an apartment house according to the present invention.

FIG. 3 is a block diagram of a living room unit of the recording system for an apartment house of the present invention.

FIG. 4 is a configuration example of a trunk serial data signal of the present invention.

FIG. 5 is a configuration example of an image display panel screen of the living room terminal of the present invention.

FIG. 6 is a block diagram of a main device of a conventional recording system for an apartment house.

FIG. 7 is a block diagram showing one embodiment of a conventional recording system for a condominium.

FIG. 8 is a block diagram of a main device of a conventional recording system for an apartment house.

[Explanation of symbols]

1 ·································································································································································································· .. Image display panel 201... Trunk line interface circuit 202... Video demodulation circuit 203... ADC circuit 204... Video signal synchronization separation circuit 205. 206 video memory controller 207 DAC circuit 208 image display panel drive circuit 209 image display panel 210 data demodulation circuit 211 ..Data modulation circuit 212 ... CPU 214 ... Pointing device 213 ... Pointing device in Interface circuit 215... Own station number setting circuit 3... Main unit 317... Trunk line interface circuit 318... Collective entrance machine interface circuit 307. 301 video input buffer circuit 302 video output buffer circuit 312 video demodulation circuit 310, 315 data demodulation circuit 311 316 data modulation Circuit 304, 306 Data input buffer circuit 303, 305 Data output buffer circuit 4 Computer device 401 Central processing unit 402 Storage unit 403: Scanner interface unit 404: Video output unit 405: Video input unit 406 ----- serial communication unit 407 ..... serial communication unit

Claims (1)

[Claims] 1. A T which is installed at a collective entrance and photographs a visitor.
Collective entrance machine (1) provided with V camera unit (101)
A living room machine (2a, 2b, 2c, 2d) installed in each living room and monitoring the image of the visitor photographed by the TV camera unit of the collective entrance machine, and talking with the visitor; And a transmission line (L11). The living room unit is connected to the trunk line (L31, L33, L35, L37), a branching device (B1d, B1c, B1b, B1a) and a branch line (L32, L34, L36, L38). Through the transmission line (L41, L4).
2, L43, L44, L45, L46) and a main unit (3) connected via the main unit (3). A video input unit (405) for receiving an analog video signal of a user, and a storage unit (402) for storing, as a digital signal, recording data of the analog video signal captured by the video input unit.
A video output unit (404) for transmitting recorded data digitally stored in the storage unit as an analog video signal; and a multiplexed analog video signal of the recorded data transmitted from the video output unit to obtain a destination room. Serial communication unit (4
06), wherein the living room unit includes an AD conversion circuit (2) for digitizing an analog video signal transmitted from the video output unit.
07) and a video memory (20) for temporarily storing digital video signals digitized by the AD conversion circuit.
5), a DA conversion circuit (207) for converting a digital video signal temporarily stored in the video memory into an analog video signal, and an image display panel for displaying the analog video signal converted by the DA conversion circuit ( 209)
A pointing device (214) for selecting an image displayed on the image display panel; and selection information corresponding to the image selected by the pointing device, transmitted to the computer device, and a room number output from the computer device. Room unit CPU (21
2) A recording system for an apartment house, comprising: