JP6204788B2 - Intercom system - Google Patents

Description

  The present invention relates to an interphone system that is connected to a general-purpose network such as a LAN and that can reply to a call from an unspecified interphone slave unit, particularly in an interphone master unit.

  In a conventional intercom system, for example, when receiving a call from a plurality of intercoms in a closed environment such as a housing complex, the central control unit receives a call signal from the caller, calls the callee, and stores an incoming call history. Was. In this case, the central controller registers in advance all connected room numbers or interphone ID numbers.

JP 2004-229185 A

  However, in the measure of Patent Document 1, there is a problem in that an interphone system in which a call may be generated from an unspecified number of slave units such as a LAN connection that is not in a closed environment cannot make a return call because the information of the caller is insufficient. Occur. In particular, in an intercom system that does not use an exchange, if the IP address of the calling slave unit is not registered in the call list of the called master unit, the call history cannot be recorded due to security problems. In addition to not being able to make a return call to the aircraft, it was also impossible to notify that there was a call when absent.

  Specifically, such a situation occurs when the interphone slave unit or the communication line is temporarily replaced or the IP address is changed due to a failure or a defective line.

  The present invention has been made to solve the above-described problems. The interphone slave unit transmits the slave unit identification information such as the device name and the installation position as information of the calling side slave unit at the time of calling, and the interphone master unit. On the machine side, when there is a call from the child machine, the child machine identification information is displayed on the parent machine display, and after the call ends, a parent machine storage unit for temporarily storing the child machine identification information together with the incoming call history is provided. If the child device identification information is to be stored exceeding the upper limit of the storage capacity of the child device identification information in the device storage unit, the child device identification information is deleted from the oldest one.

  Further, according to the present invention, a reply possible time is included in the slave unit identification information.

  According to the interphone system of the present invention, the interphone slave unit transmits the slave unit identification information at the time of calling, and the interphone master unit can store the caller identification information on the master unit display and save the call history and call back. In addition, since only a certain amount of new handset identification information can be stored, the old handset identification information disappears sequentially, eliminating the need for manual deletion.

  Further, according to the intercom system of the present invention, by including a reply possible time in the slave unit identification information, it is possible to make a return call only for a fixed time, and after making a temporary change of the interphone device or communication line, Even if the status is returned to the status, it is possible to prevent an erroneous return call from being made to the caller who has completed the temporary change.

FIG. 1 is a block diagram showing a specific configuration of an interphone master unit and an interphone slave unit in the interphone system of the present invention. FIG. 2 is an explanatory diagram showing the display contents of the call history on the base unit display of the intercom base unit in the intercom system of the present invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments to which an intercom system of the invention is applied will be described with reference to the drawings. FIG. 1 is a block diagram of an intercom system according to an embodiment of the present invention outdoors and indoors. An intercom handset 1 is installed outside a dwelling unit and a visitor calls a resident in the dwelling unit to make a call. And an interphone master unit 2 that is installed in a dwelling unit and that allows a resident who has responded to a call from a visitor to make a call. The interphone slave unit 1 and the interphone master unit 2 are connected by a general-purpose network L such as a LAN. Each is connected.

  The intercom handset 1 includes a handset microphone 13 that collects a transmitted sound for a visitor at the entrance of the dwelling unit to establish a call with a resident in the room, and a child that emits a received sound. A handset CPU 12, a handset CPU 11 that controls the overall functions of the intercom handset 1, a handset operation unit 14 such as a call button that a visitor operates when calling, a camera 16 that captures a video of the visitor, A handset communication IF 10 serving as an interface between the interphone handset 1 and the general-purpose network L, call destination base unit information for selecting a call destination registered in advance, handset identification information described later, and replyable time information are stored. A handset storage unit 17 is provided.

  The handset CPU 11 amplifies the transmitted sound collected by the handset microphone 13 and sends it to the general-purpose network L, and the voice signal that forms the received sound transmitted from the intercom base unit 2 via the general-purpose network L. Is transmitted to the handset speaker 12, and further, the video imaged by the camera 16 is sent to the general-purpose network L, and the device stored in advance in the handset storage unit 17 together with the calling signal triggered by the operation of the handset operation unit 14 It has a function of sending to the general-purpose network L return device identification information such as name, installation location, IP address, and the like, and allowable return time information for accepting a reply after making a call.

  The interphone master unit 2 stores call destination slave unit information for selecting a call destination registered in advance, slave unit identification information transmitted together with a call signal from the slave unit operation unit 14, and replyable time information. The unit storage unit 26, the main unit speaker 22 that emits the ringing tone and the transmission sound transmitted from the interphone slave unit 1, the image captured by the camera 16, and various settings such as the call volume adjustment are displayed. Call from the parent device display unit 25, the parent device microphone 23 that picks up the received sound for establishing a call with a visitor who is resident in the dwelling unit at the entrance of the dwelling unit, and a call from the child unit operation unit 14 A call button 24a that is operated to start a call in response to a signal, a touch panel 24c disposed on the front surface of the parent device display 25 for setting various settings, and an overall function of the interphone parent device 2 are controlled. You The master unit CPU 21, and a base unit communicating IF20 as the intercom master unit 2 and the interface between the general-purpose network L.

  Base unit CPU 21 amplifies the received sound picked up by base unit microphone 23 and sends it to base unit communication IF 20, and also makes a transmission sound transmitted from intercom handset 1 through base unit communication IF 20. An audio signal is transmitted to the main unit speaker 22, and further, an image captured by the camera 16 is transmitted to the main unit display 25, and an arbitrary intercom handset 1 call is selected and called by operating the touch panel 24c. Further, it has a function of displaying the incoming call history on the parent device display 25 by operating the touch panel 24c.

  Next, the operation of the intercom system configured as described above according to an embodiment of the present invention will be described.

  For registration of the slave unit identification information, replyable time information, and call destination master unit information, a setting terminal (not shown) connected directly to the interphone slave unit 1 or connected via the general-purpose network L is used. Registered in advance. In addition to the touch panel 24c, the call destination slave unit information is registered using a setting terminal (not shown) as in the interphone slave unit 1. Here, “installation position: temporary entrance / exit” and “IP address: 172.16.99.1” are registered in advance as slave unit identification information, and “one week” is registered in advance as reply time information. In addition, here, the caller slave unit information of the interphone slave unit 1 shown in the figure is not registered in the master unit storage unit 26 of the interphone master unit 2, but in the slave unit storage unit 17 of the interphone slave unit 1. Will be described with reference to an example in which call destination parent device information of the interphone parent device 2 shown in the figure is registered.

  In FIG. 1, when the child device operation unit 14 of the interphone child device 1 is operated by a visitor at the entrance of the dwelling unit, the child device CPU 11 that has detected the operation of the child device operation unit 14 receives the child device storage unit 17 from the child device storage unit 17. The identification information and replyable time information are read out and sent together with the calling signal. The call signal reaches the master CPU 21 via the slave communication IF 10, the general network L, and the master communication IF 20. Further, the slave CPU 11 instructs the camera 16 to start imaging, and the video signal in the vicinity of the dwelling entrance captured by the camera 16 is sent out in the same manner as the call signal.

  The base unit CPU 21 that has received the call signal transmits a ring tone to the base unit speaker 22, and the ring tone is emitted. Further, the master CPU 21 that has received the video signal transmits the video signal to the master display 25 so that the video near the entrance to the dwelling unit is displayed on the master display 25. Furthermore, the master CPU 21 that has received the slave unit identification information transmits the slave unit identification information together with the video signal to the master unit display 25, so that the master unit display 25 superimposes the device name on the video near the entrance to the dwelling unit. The slave unit identification information such as the installation position is displayed.

  If a resident is present in the dwelling unit, the master CPU 21 activates the master microphone 23 and activates the slave microphone 13 and the slave speaker 12 to the slave CPU 11 by operating the call button 24a. The interphone handset 1 and the interphone base unit 2 can make a two-way call. However, when the resident is absent, the base unit CPU 21 emits a ringing tone, a video signal, and a handset. The display of the identification information is stopped, and the calling date / time, the slave unit identification information, the replyable time information, and the video signal received from the camera 16 are stored in the parent device storage unit 26 as a call history using a timer unit (not shown). Since the memory area for storing the call history can store only, for example, 50 records, when the call history exceeds 50, the oldest stored call history is deleted.

  When the resident who is absent comes home and operates the touch panel 24c, the base unit CPU 21 displays the latest one of the call histories stored in the base unit storage unit 26 on the base unit display 25. The display of the call history can be sequentially switched to the old one and the new one by the operation of the touch panel 24c by the visitor. If the slave unit displayed as the call history is not registered in the call destination slave unit information, as shown in FIG. 2B, the call date and time, the slave unit identification information included in the call history, The reply possible time information and the video signal received from the camera 16 are displayed. When the reply time described in the reply time information exceeds the actual time, identification display such as changing the color of the screen as a call history that cannot be called back can be performed. When the handset displayed as the call history is registered in the call destination handset information, the replyable time information included in the call history has no meaning and is not displayed. FIG. 2 (a) As shown in FIG. 5, other information including the called child device information is displayed on the parent device display 25.

  The resident confirms the call history, recognizes that the call is from a temporary entrance, and displays the call history when attempting to make a return call to the intercom handset 1. When the call button 24a is operated in a state where the call button 24a is being operated, the base CPU 21 that has detected the operation of the call button 24a reads reply available time information from the call history stored in the base unit storage unit 26, and the range of reply possible time Recognize that it is within. Further, the “IP address: 172.16.99.1” included in the handset identification information is read from the call history, and a call signal is transmitted to the IP address, thereby calling the interphone handset 1. You can establish a route and make a call.

  In the present embodiment, the interphone slave unit 1 transmits the replyable time information. However, the present invention is not limited to this, and an example in which the replyable time information is not used by both the interphone slave unit 1 and the interphone master unit 2 is also suitable. is there. In this case, as long as the call history remains, you can try to make a return call with no time limit, but the call history is deleted when the maximum number of call history storage is reached, so a certain period of time After the elapse of time, call back can be suppressed.

  Further, in the present embodiment, the interphone handset 1 is provided with the camera 16, but the interphone handset 1 without the camera 16 has the same effect. Needless to say, if the intercom handset 1 does not include the camera 16, the video signal is not stored in the base unit storage unit 26.

1 Interphone handset 2 Interphone base unit 21 Base unit CPU
26 Storage unit (base unit storage unit)
25 Main unit display

Claims (1)

In an interphone system comprising a plurality of interphone slave units and an interphone master unit,
The interphone handset notifies the caller base unit of a time limit for accepting a reply, together with handset identification information such as the name of the installation position of the handset when calling the base unit. And
When there is a call from the slave unit, the interphone master unit displays the slave unit identification information on the master unit display, and a master unit storage unit that temporarily stores the slave unit identification information together with the incoming call history after the call ends Prepared,
There is a certain upper limit in the storage capacity of the slave unit identification information in the master unit storage unit, and when the slave unit identification information is stored beyond the upper limit value, the master unit is deleted in order from the oldest slave unit identification information. An intercom system comprising a CPU.