JP2007174031A - Key telephone system having power-saving backup function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set a power feed range flexibly so that only an important line gateway and an extension telephone operate continuously during power failure in a key telephone system. <P>SOLUTION: The key telephone system having a power-saving backup function comprises a key telephone main unit 1 having a power failure backup function for storing a line, and a plurality of pieces of extension communication equipment 2. The key telephone system comprises a power failure detection means 11 for detecting the power failure of a commercial power source; a power feed interruption circuit setting means 12 for presetting the continuation or stop of power feed to an extension communication equipment circuit 21 or a line gateway circuit 17 for fixed time during the power failure; a power feed means 13 for feeding power to the circuits 21, 17 for fixed time even in the power failure; and power feed interruption means 14, 16 for stopping or continuing the power feed from the feeding means 13, 15, based on set content by the power feed interruption circuit setting means 12. In the power failure, power continues to be fed to the circuits 21, 17 set so that power continues to be fed for fixed time, and power feed is stopped to the circuits 21, 17 set so that power feed is stopped. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a key telephone system with a power-saving backup function.

  The conventional key telephone system is configured to continuously operate the entire system for about 10 to 30 minutes even in the event of a power failure by a backup power source built in the key telephone main device. When the backup power supply is exhausted, a limited number of extension telephones and single telephones are directly connected to the outside line, so that basic outgoing and incoming calls and calls can be secured at a minimum. It is.

  If the entire system is continuously operated with a backup power supply in the event of a power failure, the user immediately after the power failure will not be confused, but not only will the backup time be short, but it can also be predicted in advance when the backup power source is exhausted Nonetheless, because the use is limited to only a limited number of extension telephones or single telephones, the smaller the number of power extension telephones or single telephones, the more confusion will result in the user. There was a problem. Further, if the backup time is increased, there is a problem that the capacity of the backup power source must be increased and the cost is increased.

  As an electronic exchange system, an electronic battery is provided with an emergency battery remaining capacity notification means, each communication terminal is provided with a variable power consumption control means, and each communication terminal is provided with the remaining capacity detection information notified from the electronic exchange and a preset consumption. Depending on the power reduction pattern, the operation time of the system with an emergency battery can be extended without increasing the battery capacity by gradually limiting the operation of a given circuit from one with high power consumption to one with low power consumption. Thus, a small, inexpensive and sufficient backup method has been proposed (for example, see Patent Document 1). In this case, although each communication terminal shifts to the low power consumption mode in an emergency such as a power failure, even when all communication terminals are in the calling process, dial-in incoming process, and when not in a call state, Since power supply is continued, there is a problem that the emergency battery is wasted.

Also, in private branch exchanges that use dedicated lines between multiple sites and compress and multiplex transmit voice, power supply to non-emergency telephones is stopped during a power outage, and voice multiplex transmission is stopped during a power outage. A method for extending the backup time has been proposed (see, for example, Patent Document 2). In this case, an emergency telephone that is fed from the private branch exchange at the time of a power failure has been identified, and there is a problem that the setting cannot be flexibly changed systematically. There was a problem that caused confusion for users because it could not be used.
JP-A-6-237318 JP 2004-248179 A

  The present invention has been made in view of such circumstances, and in a key telephone system with a power saving backup function, only important functions, devices, and circuits such as an important line gateway and an important extension telephone are continuously operated in the event of a power failure. The power supply range can be set flexibly, and the power supply range can be narrowed in a flexible and step-by-step manner according to the elapsed time at the time of a power outage, avoiding confusion for users and using the same backup power supply capacity as before The purpose is to provide a key telephone system that can extend the time and reduce the capacity of the backup power source when the same backup time as before can be used, thereby enabling economy.

  In order to achieve the above object, a key telephone system with a power saving backup function according to the present invention shares one or a plurality of lines with a plurality of extension communication devices by call control of the key telephone main unit, and performs external line communication and extension line communication. In a key telephone system that performs power supply, a power failure detection means for commercial power, a power supply means having a backup power source capable of supplying power for a certain period of time to a system component device or its internal component circuit, and Power supply intermittent circuit setting means for presetting system configuration equipment that continues power supply or its internal configuration circuit, system configuration equipment that stops power supply in the event of a power failure, or its internal configuration circuit, and power supply from the power supply means is stopped or continued If the power failure is detected by the power failure detection means, The power supply interrupting means continues the power supply from the power supply means to a system component device or its internal component circuit that has been set in advance so as to continue power supply for a certain time even during a power failure by the power supply interrupting circuit setting means. The power supply from the power supply means is stopped by the power supply interrupting means for a system component device or its internal configuration circuit that is preset to stop power supply in the event of a power failure by the power supply interrupting circuit setting means. Is.

  Another key telephone system with a power saving backup function according to the present invention is a key for sharing one or a plurality of lines with a plurality of extension communication devices by call control of the key telephone main unit, and performing external line communication and extension line communication. In a telephone system, a power failure detection means for commercial power supply, a power supply means having a backup power source capable of supplying power for a certain period of time even when a power failure occurs, and a power supply for a certain period of time even when a power failure occurs. Power supply interrupt circuit setting means for presetting system component equipment to be continued or its internal structure circuit, system component equipment to be stopped for power supply in case of power failure, or its internal structure circuit, and power supply from the power supply means to be stopped or continued Power supply interrupting means and power supply stop notice means to the extension communication device, when stopping power supply, When a power failure is detected by the power detection means, the power supply is applied to the system configuration device or its internal configuration circuit that is set in advance so that the power supply is interrupted for a certain period of time by the power supply interrupt circuit setting means. Power supply from the power supply means is continued by the power supply interrupting means, and the power supply interrupting circuit setting means from the power supply means to the system configuration equipment or its internal configuration circuit set in advance to stop power supply in the event of a power failure The power supply is stopped by the power supply interrupting means, and when power supply to the extension communication device is stopped, the power supply stop can be notified in advance by an audible display or a visual display from a certain time before the power supply stop. .

More specifically, according to the present invention, there are the following three cases depending on where the power supply means and the power supply interrupting means to the extension communication equipment are arranged in the system component equipment such as the key telephone main unit, the extension communication equipment, and the line gateway. are categorized.
(1) The power supply means for the extension communication device is built in the key telephone main unit, a star wiring is provided between the plurality of extension communication devices and the key telephone main unit, and a plurality of key telephone main units are provided for the plurality of extension communication units. When the power supply path is provided, the power supply interrupting means is provided in all the power supply paths or one or more specific power supply paths.
(2) The power supply means for the extension communication equipment is built in the key telephone main unit, and the extension communication within a fixed number of units is made by using star wiring between the extension communication device group for each fixed number of units and the key telephone main unit. When each device has a bus wiring between the key telephone main unit and the key telephone main unit has one or a plurality of power supply paths for a certain number of units of extension communication equipment, all power supply paths or Power supply intermittent means is provided in one or more specific power supply paths.
(3) The power supply means for the extension communication device is built in one or a plurality of hubs with a power supply function, and one or a plurality of extensions is provided between the one or a plurality of power supply function hubs and the key telephone main unit as a star wiring or a bus wiring. When a star wiring is provided between the communication device and the hub with the power supply function, and the hub with the power supply function has one or a plurality of power supply paths with respect to one or a plurality of extension communication devices, One or a plurality of power supply paths are provided with power supply interrupting means.

  Here, the extension communication apparatus of the present invention includes an extension telephone, a telephone adapter that can connect general communication apparatuses for analog lines and ISDN lines, a wireless LAN access point, a wireless LAN cordless telephone, and the like. The line gateway of the present invention includes an analog line gateway, an ISDN line gateway, an IP line gateway, a dedicated line gateway, and the like. In the conventional system, the key telephone main device is often built in, but in recent systems, for example, the SIP server system, an SIP-compatible extension telephone, an analog other than the SIP server as the key telephone main device that controls call control. In many cases, line gateways, ISDN line gateways, IP line gateways, and the like can be arranged separately or collectively according to the installation environment. The line gateway of the present invention includes an SIP-compatible extension telephone, an analog line gateway other than the SIP server as a key telephone main device that controls call control, an ISDN line gateway, an IP line gateway, and the like.

  That is, the present invention relates to a commercial power supply in a key telephone system with a power-saving backup function in which one or a plurality of lines are shared by a plurality of extension communication devices by call control of a key telephone main apparatus, and external line communication and extension communication are performed. A power failure detection means for detecting a power outage, a power supply means having a backup power source capable of supplying power for a certain period of time to a system component device or its internal component circuit, and a system for continuing power supply for a certain time even during a power failure From the power supply means based on the setting contents of the power supply intermittent circuit setting means, and the power supply intermittent circuit setting means for presetting the component equipment or the internal configuration circuit thereof, the system configuration equipment that stops power supply in the event of a power failure, or the internal configuration circuit thereof Power supply interruption means for stopping or continuing the power supply of the commercial power supply by the power failure detection means When a power failure is detected, the power supply interruption circuit setting means supplies power from the power supply means to the system component equipment or its internal component circuit that has been set in advance to continue power supply for a certain time even during a power failure. The power supply from the power supply means is stopped by the power supply interrupting means for the system component equipment or its internal component circuit that is preset to stop power supply at the time of a power failure by the power supply interrupting circuit setting means. I did it.

  Also, the present invention provides a power telephone with a power-saving backup function in which one or a plurality of lines are shared by a plurality of extension communication devices by call control of a key telephone main unit, and performs external line communication and extension line communication. A power failure detection means for detecting a power outage, a power supply means having a backup power source capable of supplying power for a certain period of time to a system component device or its internal component circuit, and a system for continuing power supply for a certain time even during a power failure From the power supply means based on the setting contents of the power supply intermittent circuit setting means, and the power supply intermittent circuit setting means for presetting the component equipment or the internal configuration circuit thereof, the system configuration equipment that stops power supply in the event of a power failure, or the internal configuration circuit thereof Power supply interrupting means to stop or continue power supply, and to stop power supply to extension communication equipment that stops power supply A power supply stop notice means for notifying, and when power supply is stopped, when a power failure of the commercial power source is detected by the power failure detection means, the power supply interrupt circuit setting means continues power supply for a certain period of time even when there is a power failure The power supply from the power supply means is continued by the power supply interrupting means for the system configuration equipment or the internal configuration circuit set in advance, and the power supply interrupting circuit setting means is set in advance to stop power supply in the event of a power failure The power supply from the power supply means is stopped by the power supply interrupting means for the system configuration equipment or the internal configuration circuit thereof, and when power supply to the extension communication equipment is stopped, the power supply from the power supply stop time is stopped for a certain period of time. The power supply stoppage can be notified in advance by audible display or visual display.

  Furthermore, in the key telephone system with the power saving backup function described above, the power supply means for the extension communication device is built in the key telephone main device, and the star telephone wiring between the plurality of extension communication devices and the key telephone main device is provided. When the key telephone main device has a plurality of power supply paths for a plurality of extension communication devices, power supply interruption means are provided in all power supply paths or one or more specific power supply paths. Further, the present invention provides a key telephone system with a power-saving backup function, wherein power supply means for the extension communication device is built in the key telephone main device, and the extension communication device group and the key telephone main unit for each fixed number of units. Star wiring between the devices, bus communication between each of the extension communication devices within a certain number of units and the key telephone main device, and one key telephone main device for one set of extension communication devices for each number of units In the case of having a plurality of power supply paths, the power supply interrupting means is provided in all power supply paths or one or more specific power supply paths.

  Further, according to the present invention, in the key telephone system with a power saving backup function, the power feeding means to the extension communication device is built in one or more hubs with the power feeding function, and one or more hubs with the power feeding function and the key telephone main unit. Star wiring or bus wiring is used between devices, and star wiring is used between one or a plurality of extension communication devices and the hub with the power supply function, and the hub with power supply function supplies one or a plurality of power to one or a plurality of extension communication devices. In the case of having a route, the power supply interrupting means is provided in all the power supply routes or one or more specific power supply routes.

  According to the present invention, in the key telephone system with the power saving type backup function, the power supply interrupting circuit setting means classifies the system constituent equipment or its internal constituent circuit into a plurality of, and is arbitrarily or fixedly set for a fixed power failure time. Every time, the system components or the internal components that continue to supply power are reduced step by step to narrow the power supply range step by step.

  In the key telephone system with the power saving type backup function, the system constituent devices are a key telephone main device, an extension communication device, a line gateway, etc., and the internal configuration circuits are an extension communication device circuit, a line gateway circuit, a voice mail. Circuit etc.

  According to the present invention, for example, when the power consumption of a key telephone main unit excluding extension telephones and line gateways is 10% of the power consumption of the entire system, the number of extension telephones and line gateways that are continuously operated during a power failure is energized. When 1/9 of the time is set, the power consumption during a power failure can be reduced to 1/5 of the power consumption during energization. Therefore, in the same system, if the capacity of the backup power supply is the same as that of the conventional system, the backup time can be extended by five times. There is an effect that the cost can be reduced.

  Embodiments of a key telephone system with a power saving backup function according to the present invention will be specifically described below with reference to the drawings.

  [Embodiment 1] In the first embodiment of the present invention shown in FIG. 1, a line gateway circuit, an extension communication device power supply interrupting means for an extension communication device circuit, an extension communication device power supply means, and a line gateway circuit for a line gateway circuit. This is an example in which a circuit power supply interrupting means and a circuit gateway power supply means, as well as a power supply interrupting circuit setting means and a power failure detection means are incorporated in the key telephone main unit.

  That is, the key telephone system with a power saving backup function according to the first embodiment sets, for example, a power failure detection means 11 for detecting a power failure of a commercial power supply and a power supply stop state of the power supply interruption means in the key telephone main device 1. Power supply intermittent circuit setting means 12, power supply means 13-1 to 13-n for extension communication equipment having a backup power source capable of supplying power for a certain time even in the event of a power failure, and supplying power to the extension communication equipment circuit, and to the extension communication equipment circuit Power supply interrupting means 14-1 to 14-n for extension communication equipment for interrupting the power supply of the line, and a power supply means 15 for the circuit gateway circuit for supplying power to the circuit gateway circuit having a backup power source capable of supplying power for a certain time even during a power failure. 1 to 15-n, power supply interruption means 16-1 to 16-n for line gateway circuit for interrupting power supply to the line gateway circuit, and line gateway And a road 17-1 to 17-n.

  The extension communication device power supply interrupting means 14-1 to 14-n are connected to the extension communication devices 2-1 to 2-n including the extension communication device circuits 21-1 to 21-n, respectively, and the line gateway circuit 17 is connected thereto. External lines (not shown) such as analog lines, ISDN lines, and IP lines are connected to -1 to 17-n, respectively.

  The power supply intermittent circuit setting means 12 is a means for presetting a system component device that continues power supply for a certain time even during a power failure, or an internal component circuit thereof, or a system component device that stops power supply during a power failure, or an internal component circuit thereof. A power interruption / interruption state setting table for setting a power interruption / interruption state of the power interruption / interruption means at the time of a power failure is provided, and power supply interruption means 14-1 to 14-n for each extension communication device circuit based on the contents of this table at the time of a power failure. These are means for setting the intermittent state of the power supply intermittent means 16-1 to 16-n for the circuit gateway circuit.

  The power supply means 13-1 to 13-n for extension communication equipment circuits and the power supply means 15-1 to 15-n for line gateway circuits are normally supplied with power from, for example, a commercial power supply, and the power failure detection means 11 is a power failure of the commercial power supply. When a power failure is detected, power is supplied from a backup power source such as an uninterruptible power source of power feeding means provided in the key telephone system. The power supply means 13-1 to 13-n for the extension communication equipment circuit and the power supply means 15-1 to 15-n for the line gateway circuit are naturally necessary for each port, but if the power supply voltage to each port is the same. For the design efficiency, the original power source is naturally unified if it can be unified. When all the power supply means are in the main apparatus, a large-capacity battery-type power supply apparatus can be built in the main apparatus, and there is no divisional loss of the battery, which is economical. However, when the power supply means is provided outside the main apparatus, naturally, the battery is individually incorporated in the system component equipment (line gateway, extension communication device, power supply hub) in which the power supply means is incorporated. In the case of phantom power feeding, the power feeding means may be a pulse transformer with a center tap as a power feeding port for each system component circuit (extension communication equipment circuit, line gateway circuit).

  The power supply interrupting means 14-1 to 14-n and 16-1 to 16-n are based on the intermittent state setting information from the power supply interrupting circuit setting means 12 and are used as power supply means 13-1 to 13-n for extension communication equipment circuits. A means for stopping or continuing the power supply from the power supply means 15-1 to 15-n for the line gateway circuit to the extension communication device circuits 21-1 to 21-n and the line gateway circuits 17-1 to 17-n. is there.

  Further, in this embodiment, the power supply stop notification means for notifying the power supply to the extension communication device that stops power supply in the event of a power failure is omitted. 11, when a power failure of the commercial power source is detected by the power supply interrupting circuit setting means 12, the power supply means 13, The power supply interrupting means 14, 16 continues the power supply from the power supply 15, and the power supply interrupting circuit setting means 12 supplies the power supply means 13 for the system configuration equipment or its internal configuration circuit set in advance so as to stop the power supply in the event of a power failure. , 15 is stopped by the power supply interrupting means 14, 16, and when the power supply to the extension communication device circuit 21 is stopped, It is possible to notice the feeding stopped by an audible indication or visual display before a certain time from the time.

  A first example of the power supply intermittent state setting table at the time of power failure provided in the power supply intermittent circuit setting means 12 will be described with reference to FIG. This example is an example of enlarging the system component device or its internal component circuit that is stopped in a stepwise manner, except for the specific extension communication device set to always supply power continuously. In the power supply intermittent state setting table at the time of a power failure, for each extension communication device circuit and line gateway circuit to be fed, immediately after the power failure, 10 minutes, 20 minutes, 30 minutes, and the time until the battery runs out The transition of the power supply state is described. According to this example, most of the extension communication device circuits continue to supply power immediately after the power failure, and power supply continues to the line gateway circuits except the IP line gateway. After 10 minutes, the number of extension communication equipment circuits and line gateway circuits that stop supplying power increases. After 20 and 30 minutes, power supply to specific extension communication equipment circuits and line gateway circuits is stopped, and it is specified until the battery runs out. Power is continuously supplied only to the extension communication equipment and the specific line gateway.

  With this setting, as the time after a power failure elapses, the number of extension communication devices and line gateway circuits that are subject to power supply can be reduced sequentially, and power supply to a specific extension communication device circuit or line gateway circuit can be maintained over a long period of time. .

  A second example of the power supply intermittent state setting table at the time of power failure provided in the power supply intermittent circuit setting means 12 will be described with reference to FIG. In this example, all the extension communication device circuits are set to stop power supply except for outgoing call processing, dial-in incoming call processing, and a call immediately after a power failure, and is a setting that achieves both power saving and usability. The power interruption / interrupt state setting table during a power failure describes the basic settings immediately after a power failure, outgoing call processing and incoming call processing, and temporary power supply during a call for each extension communication equipment circuit and line gateway circuit to be fed. It is. According to this example, immediately after a power failure, all the extension communication equipment circuits are stopped from power supply, and power supply is continued only to a specific line gateway circuit of the line gateway circuit excluding the IP line gateway. Only during dial-in incoming processing and during a call, a temporary power supply state is set for each device to resume power supply by off-hook and stop power supply by on-hook. When making a call from the extension communication device 2, the power supply interrupt circuit setting means 12 detects off-hook, instructs the power supply interrupt means 14 to resume power supply, starts power supply to the extension communication device circuit 21, and performs the extension communication during a call. When power is supplied to the device circuit 21 and on-hook is detected, the power supply is stopped. Further, when the line gateway circuit 17 that continues to supply power detects an incoming call, the power supply interrupting circuit setting means 12 instructs the power supply interrupting means 14 to resume power supply to the incoming extension communication device 2 to supply power to the extension communication device circuit. Therefore, it is possible to make a call by notifying the extension communication device of a dial-in incoming call. In this specification, a setting form in which power supply is resumed during a call processing by off-hook or when a dial-in call is received and a call is made and then the power supply is stopped after the power supply is stopped.

  In this example, it is necessary to detect the off-hook and on-hook of the extension communication device or the pressing of the speaker button. However, the switch is normally “open” in the on-hook state and the switch is “closed” in the off-hook state. This switch is provided on one or both of the hook switch and the speaker button switch, and even when a separate power supply voltage is applied, power is not consumed in the on-hook state, and the off-hook or on-hook state can be detected in a power-saving manner. It becomes possible.

  In this setting, the power supply to the line gateway circuit and all the extension communication equipment circuits except for the specific line gateway circuit is stopped immediately after the power failure, so that the power of the emergency power supply can be used effectively for a long time. In addition, since power is supplied to the extension communication device circuit during the outgoing call processing and dial-in incoming call processing and during a call, it is possible to make a call that is comparable to the normal state.

  A third example of the power supply intermittent state setting table at the time of power failure provided in the power supply intermittent circuit setting means 12 will be described with reference to FIG. This example stops power supply to all extension communication equipment circuits and circuit gateway circuits immediately after a power failure, and when there is an off-hook or incoming call, resumes power supply to the extension communication equipment circuits and circuit gateway circuits to enable a call. In this embodiment, the number of extension communication equipment circuits and line gateway circuits that can be set at any time is reduced as time passes. That is, in the power failure state setting table at the time of power failure in the third example, the contents of the basic setting and the timely setting are set for each extension communication device circuit and line gateway circuit.

  As the basic setting, for example, a temporary power supply additional circuit is set every time after the power failure, 10 minutes, 20 minutes, and until the battery runs out. For example, the extension communication device circuit N1 is set to be unable to supply power immediately after a power failure, and the setting is not always supplied even by an off-hook operation. The extension communication device circuit N2 is set to be able to supply power immediately after power supply but not to power supply after 10 minutes, and the setting at any time is set to allow temporary power supply by an off-hook operation. However, after that, power is not supplied by off-hook. Similarly, the extension communication device circuit N3 is set to be able to supply power immediately after power supply and after 10 minutes, but not to supply power after 20 minutes, and the setting is set to allow temporary power supply by an off-hook operation. Although power can be supplied by off-hook for 20 minutes, power is not supplied by off-hook thereafter. According to this example, all the extension communication device circuits and the circuit gateway circuit are stopped from feeding immediately after the power failure, but the predetermined extension communication device circuit and the circuit gateway circuit can be temporarily powered by setting at any time, As time elapses, the number of extension communication device circuits and line gateway circuits that can temporarily supply power decreases, and power can be supplied by setting only to a specific extension communication device and a specific line gateway until the battery runs out.

  With this setting, as the time after a power failure elapses, the number of extension communication devices and line gateway circuits that are subject to power supply can be reduced sequentially, and power supply to a specific extension communication device circuit or line gateway circuit can be maintained over a long period of time. . In the examples of FIGS. 2 and 4, the power supply range is gradually reduced as time elapses immediately after the power failure, that is, the power supply stop range is gradually increased. The purpose can be achieved even if the power supply range is reduced stepwise according to the reduction, that is, the power consumption of the backup power source, that is, the power supply stop range is increased stepwise.

  [Embodiment 2] A second embodiment of the present invention will be described with reference to FIG. In this embodiment, the power supply interrupting means 14 for extension communication equipment and the power supply means 13 for extension communication equipment for the extension communication equipment circuit 21, the power supply interrupting means 16 for line gateway circuit and the power supply means 15 for line gateway circuit for the line gateway circuit 31, This is an example in which the power failure detection means 11 and the power supply interruption circuit setting means 12 are built in the key telephone main device 1 and the line gateway 3 having the line gateway circuits 31-1 to 31-n is separated from the key telephone main device 1. .

  The other configuration of the second embodiment is the same as that of the first embodiment, and operates similarly by setting the power interruption / interrupt state setting table at the time of power failure in the same manner as shown in FIGS. Can be made.

  [Third Embodiment] A third embodiment of the present invention will be described with reference to FIG. In the third embodiment, power supply means 13-1 to 13-n for extension communication devices for the extension communication device circuits 21-1 to 21-n and power supply for line gateway circuits to the line gateway circuits 31-1 to 31-n. The means 15-1 to 15-n, the power supply detecting means 11 and the power supply interrupt circuit setting means 12 are built in the key telephone main unit 1, and the line gateway circuits 31-1 to 31-n and the power supply interrupt circuit means 32- 1 to 32-n are built in the line gateway 3, and the extension communication equipment circuits 21-1 to 21-n and the extension communication equipment power supply interrupting means 22-1 to 22-n are connected to the extension communication equipment 2-1 to 2-n. And the line gateway 3 is separated from the key telephone main device 1.

  The other configuration of the third embodiment is the same as the configuration of the first embodiment, and operates similarly by setting the power interruption / interrupt state setting table at the time of power failure in the same manner as shown in FIGS. Can be made.

  In the third embodiment, compared with the first embodiment and the second embodiment, the power supply interrupting means 22-1 to 22-n for extension communication devices are built in the extension communication devices 2-1 to 2-n. Therefore, the power supply to the extension communication device circuits 21-1 to 21-n can be completely stopped as in the first and second embodiments, but the extension communication device circuits 21-1 to 21-21 can be stopped. It is also possible to perform fine power supply control such that a partial functional circuit of −n is operated and other functional circuits are stopped.

  [Embodiment 4] A fourth embodiment of the present invention will be described with reference to FIG. In the fourth embodiment, the key telephone main unit 1 includes the power interruption detecting means 11, the extension communication device circuits 21-1 to 21-n, and the power supply intermittent circuit setting means 12 for the line gateway circuits 31-1 to 31-n. , Line gateway circuits 31-1 to 31-n, line gateway circuit power supply interrupting means 32-1 to 32-n, and line gateway circuit power supply means 33-1 to 33-n are built in the line gateway 3 for extension communication. The device circuits 21-1 to 21-n, the extension communication device power supply interrupting means 22-1 to 22-n, and the extension communication device power supply means 23-1 to 23-n are changed from the extension communication devices 2-1 to 2-n. This is an example in which the line gateway 3 is built in and separated from the key telephone main apparatus 1.

  The other configuration of the fourth embodiment is the same as that of the first embodiment, and operates similarly by setting the power interruption / interrupt state setting table at the time of power failure in the same manner as shown in FIGS. Can be made.

  In the fourth embodiment, compared with the first to third embodiments, the power supply means 23-1 to 23-n for the extension communication devices are built in the extension communication devices 2-1 to 2-n, respectively. Therefore, for example, it corresponds to the case where power is supplied to the extension communication device from the power adapter that converts the commercial power supply AC100V into the DC power supply, and is suitable for the case where it is desired to eliminate the power supply from the key telephone main device 1 to the extension communication device 2. ing.

  In the first to fourth embodiments, a star wiring is adopted as the power supply wiring between the key telephone main device 1 and the extension communication device 2, and there is the least restriction on the design of the power supply capability. If the power supply capacity from the main unit is the same, the wiring length can be made the longest. However, as the number of extension communication devices increases, all star wiring concentrates on the key telephone main unit, causing restrictions on wiring work. To do.

  [Embodiment 5] A fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, the configuration of the key telephone main device 1 is the same as the configuration of the key telephone main device 1 in the first embodiment, and the power supply mode for the extension communication device 2 is collectively divided into several units. There is a feature in the point made to do. That is, in the fifth embodiment, the key telephone main device 1 is provided with the power failure detection means 11, the power supply interrupt circuit setting means 12, the extension communication equipment power supply means 13-1 to 13-n, and the extension communication equipment power supply. Intermittent means 14-1 to 14-n, line gateway circuit power supply means 15-1 to 15-n, line gateway circuit power supply interrupting means 16-1 to 16-n, and line gateway circuits 17-1 to 17-17 -N.

  Each of the extension communication device power supply interrupting means 14-1 to 14-n is connected to the power supply interrupting circuit setting means 12 to receive information, and the extension communication devices 2-11 to 2-1m for each fixed unit. Extension communication devices 2-21 to 2-2m, extension communication devices 2-n1 to 2-nm extension communication device circuits 21-11 to 21-1m, 21-21 to 21-2m, 21-n1 to 21-nm The power supply paths N1, N2, and Nn are bus-connected.

  In the fifth embodiment, the star wiring is adopted between the extension communication device and the key telephone main unit in a fixed number of units, and the bus wiring is connected between the extension communication device and the key telephone main unit in a fixed number of units. Therefore, if the power supply capacity from the key telephone main unit per wire is the same, the wire length increases as the number of extension communication devices increases. Even if the number of extension communication devices increases, power is supplied to a certain number of extension communication devices with a single cable from the key telephone main unit. There is an advantage of not concentrating on the main device.

  [Embodiment 6] A sixth embodiment of the present invention will be described with reference to FIG. In the sixth embodiment, the extension communication device power supply interrupting means 14-1 to 14-n provided in the key telephone main apparatus 1 in the fifth embodiment are connected to the respective extension communication devices 2-11 to 2-1m. , 2-21 to 2-2m, 2-n1 to 2-nm. That is, in the sixth embodiment, line gateway circuits 17-1 to 17-n, line gateway circuit power supply interrupting means 16-1 to 16-n, and line gateway circuit power supply means 15-1 to 15-n; The power supply means 13-1 to 13-n for the extension communication equipment circuit, the power failure detection means 11, and the power supply interrupting circuit setting means 12 are built in the key telephone main apparatus 1, and the extension communication equipment 2-11 to 2-1m, 2 -21 to 2-2m and 2-n1 to 2-nm include extension communication device circuits 21-11 to 21-1m, 21-21 to 21-2m, 21-n1 to 21-nm and power supply for extension communication devices. Intermittent means 22-11 to 22-1m, 22-21 to 22-2m, 22-n1 to 22-nm are built-in, and a star is connected between the extension communication device and the key telephone main unit for each fixed number of units (groups). Adopt wiring While a model example of adopting the bus line between the extension communication device and key telephone main unit every predetermined plural number units (group). In the sixth embodiment, as compared with the fifth embodiment, the extension communication device power supply interrupting means 22 is built in the extension communication device 2, so that each extension communication device circuit 21 is similar to the fifth embodiment. However, it is possible to perform fine power supply control such that a part of the extension communication device circuit 21 is operated for each extension communication device and the other function circuits are stopped.

  In the fifth embodiment and the sixth embodiment, an extension communication device and a key telephone in a fixed number of units are adopted while adopting a star wiring between the extension communication device and a key telephone main unit in a fixed number of units. Since bus wiring is used between the main units, there are restrictions on the design of the power supply capacity on the bus wiring, and if the power supply capacity from the key telephone main unit per wiring is the same, the number of extension communication devices The more the number of extension communication devices, the shorter the wiring length. However, even if the number of extension communication devices increases, a certain number of extension communication devices are supplied by a single cable from the key telephone main unit. There is an advantage that the wiring cable is not concentrated on the main unit of the key telephone.

  In the fifth embodiment and the sixth embodiment, the line gateway circuit 17 of the line gateway, the power supply interrupting means 16 for the line gateway circuit, and the power supply means 15 for the line gateway circuit are incorporated in the key telephone main device 1. If only the line gateway circuit 17 is separated from the key telephone main device 1 and provided in the line gateway 3, the second embodiment, the line gateway circuit 17 and the power supply interruption means 16 for the line gateway circuit are separated from the key telephone main device 1. If separated and provided in the line gateway 3, the line gateway circuit 17, the line gateway circuit power supply interrupting means 16 and the line gateway power supply means 15 are separated from the key telephone main unit and the line gateway 3. If it is provided inside, it can be the same as the fourth embodiment. It is.

  A seventh embodiment of the invention will be described with reference to FIG. In the seventh embodiment, the line gateway circuit 17, the line gateway circuit power supply interruption means 16, the line gateway circuit power supply means 15, the power failure detection means 11, and the power supply interruption circuit setting means 12 are incorporated in the key telephone main apparatus 1. , Extension communication device power supply intermittent means 41-1, 41-2, 41-n and extension communication for the extension communication device circuits 21-11 to 21-1m, 21-21 to 21-2m, 21-n1 to 21-nm The device power supply means 42-1, 42-2, and 42-n are respectively incorporated in hubs (HUB) 4-1, 4-2, and 4-n with power supply function, and the hub 4 with power supply function and the key telephone main device 1 are incorporated. This is an embodiment in which a star wiring is employed between the extension communication device 2 and a hub 4 with a power feeding function in a certain number of units (group).

  The eighth embodiment of the present invention will be described with reference to FIG. In the eighth embodiment, the key telephone main unit 1 is provided with the line gateway circuit 17, the power supply interruption means 16 for the line gateway circuit, the power supply means 15 for the line gateway circuit, the power failure detection means 11, and the power supply interruption circuit setting means 12. The telephone main device 1 is built in, and the power supply means 42-1 to 42-n for the extension communication device circuits are built in the power supply hubs 4-1 to 4-n, and the extension communication device circuits 21-11 to 21-1m, 21-. 21 to 21-2m, 21-n1 to 21-nm, and extension communication device power supply interrupting means 22-11 to 22-1m, 22-21 to 22-2m, 22-n1 to 22-nm are connected to the extension communication device 2- Built in 11 to 2-1m, 2-21 to 2-2m, 2-n1 to 2-nm, and adopts star wiring between hubs 4-1 to 4-n with feeding function and key telephone main device 1 Shi An embodiment employing star wiring also between the fixed extension communication device and the feeder hub plurality number within the unit. Compared to the seventh embodiment, the eighth embodiment requires the extension communication device 2 to add the power supply interrupting means 22 for the extension communication device. However, the hub 4 with a power supply function is a commercially available hub with a power supply function. There is an advantage that can be used as is.

  In the seventh embodiment and the eighth embodiment, a star wiring is adopted between the hub with power supply function and the key telephone main device, and the extension communication device and the hub with power supply function in a fixed unit (group). Since the star wiring is also used between the power supply hub and the power supply function on the star wiring from the hub with power supply function, there are few restrictions on the power supply capacity from the power supply hub per wiring. Even if the number of extension communication devices increases, hubs with power supply functions can be distributed in units of a certain number of installation units, and the number of extension cables equivalent to the number of extension communication devices is a key telephone. There is an advantage of not concentrating on the main device.

  In the seventh and eighth embodiments, the line gateway circuit, the power supply interrupting means for the line gateway circuit, and the power supply means for the line gateway circuit are incorporated in the key telephone main unit, but only the line gateway circuit is provided. If it is separated from the main unit and incorporated in the line gateway, the first embodiment and the line gateway circuit and the power supply interruption means for the line gateway circuit are separated from the key telephone main unit and incorporated in the line gate circuit. If the circuit gateway circuit, the power supply interrupting means for the circuit gateway circuit and the power supply means for the circuit gateway circuit are separated from the key telephone main unit and built in the circuit gateway, the configuration is the same as that of the fourth embodiment. It is also possible.

  In all the above embodiments, the power supply interrupt circuit setting means classifies the system components such as the key telephone main device, the extension communication device, the line gateway, etc., or the internal component circuits thereof into a plurality, and is arbitrarily or fixedly set. Depending on the elapse of a certain power outage time or the power consumption of the backup power supply, the power supply range may be gradually reduced by gradually reducing the system components that continue to supply power or the internal components of the circuit. Is possible. For example, extension communication devices (extension telephones) are classified into two types. Immediately after the occurrence of a power outage, power is supplied only to at least one extension telephone for each department. Can be limited to departments that are important both internally and internally. In this way, the minimum communication means is secured in each department even immediately after the power failure, and preparation time and grace time can be secured as a response to the subsequent power failure. By continuing to supply power only to compatible line gateways and extension telephones, it is possible to set the backup range and backup time in the event of a power failure in detail, and it is possible to set up a power supply continuation circuit that flexibly corresponds to the business content.

  The setting for the power supply interrupt circuit setting means in the embodiment is connected to a PC (personal computer) connected to the key telephone main unit, a handheld terminal that can be carried by a construction maintenance person and connected to the key telephone main unit, and the key telephone main unit. However, the setting data itself is stored in the key telephone main device, but the storage location of the setting data is not limited to the key telephone main device. The setting data stored in the power supply interrupt circuit setting means is divided into those that continue power supply for a certain period of time even during a power failure and those that stop power supply during a power failure. In the embodiment, only the power supply interrupting circuit setting means stores only the power that continues to be supplied for a certain time even in the event of a power failure. Also good.

  The line gateway in the embodiment is a unit circuit for each line such as an analog line, an ISDN line, an IP line, a dedicated line, etc., but the line gateway circuit for each line type is added in units of one or more lines. It is also possible to subdivide into unit circuits and stop or continue power supply in units of extension unit circuits.

  The connection between the power supply continuation circuit setting means and the line gateway circuit for each line type may be either star wiring or bus wiring, but the bus wiring is the most in the number of wiring on the circuit board and the number of wiring cables between system components. Few.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram explaining the structure of the key telephone system concerning the 1st Example of this invention. The figure explaining the content of the electric power supply intermittent state setting table at the time of a power failure used for this invention (the 1). The figure explaining the content of the electric power supply intermittent state setting table at the time of a power failure used for this invention (the 2). The figure explaining the content of the power supply intermittent state setting table at the time of a power failure used for this invention (the 3). The block diagram explaining the structure of the key telephone system concerning the 2nd Example of this invention. The block diagram explaining the structure of the key telephone system concerning the 3rd Example of this invention. The block diagram explaining the structure of the key telephone system concerning the 4th Example of this invention. The block diagram explaining the structure of the key telephone system concerning the 5th Example of this invention. The block diagram explaining the structure of the key telephone system concerning the 6th Example of this invention. The block diagram explaining the structure of the key telephone system concerning the 7th Example of this invention. The block diagram explaining the structure of the key telephone system concerning the 8th Example of this invention.

Explanation of symbols

1: Key telephone main device 11: Power failure detection means 12: Power supply interruption circuit setting means 13: Power supply means for extension communication equipment 14: Power supply interruption means for extension communication equipment 15: Power supply means for line gateway circuit 16: Power supply for line gateway circuit Interrupting means 17: Line gateway circuit 2: Extension communication equipment 21: Extension communication equipment circuit 22: Power supply interruption means for extension communication equipment circuit 23: Power supply interruption means for extension communication equipment circuit 3: Line gateway 31: Line gateway circuit 32: Line gateway Power supply interruption means for circuit 33: Power supply means for circuit gateway circuit 4: Hub with power supply function 41: Power supply interruption means for extension communication equipment circuit 42: Power supply means for extension communication equipment circuit

Claims (6)

In a key telephone system with a power-saving blackout backup function in which one or more lines are shared by a plurality of extension communication devices by call control of the key telephone main unit, and external line communication and extension line communication are performed.
A power failure detection means for detecting a commercial power failure,
A power supply means having a backup power source capable of supplying power for a certain period of time even when a power failure occurs to a system component device or its internal component circuit;
Power supply intermittent circuit setting means for presetting a system component device that continues power supply for a certain time even during a power failure or an internal component circuit thereof, or a system component device that stops power supply during a power failure, or an internal component circuit thereof;
Power supply intermittent means for stopping or continuing the power supply from the power supply means based on the setting contents of the power supply interrupt circuit setting means,
When a power failure of the commercial power source is detected by the power failure detection means, the power supply is applied to the system component equipment or its internal component circuit that is preset in the power supply interrupt circuit setting means so as to continue power supply for a certain period of time even during a power failure. Power supply from the means is continued by the power supply interruption means,
The power supply from the power supply means is stopped by the power supply interrupting means with respect to the system component equipment or its internal configuration circuit that is preset to stop power supply in the event of a power failure by the power supply interrupting circuit setting means. A key telephone system with a power-saving backup function. In a key telephone system with a power-saving backup function in which one or more lines are shared by a plurality of extension communication devices by call control of a key telephone main unit, and perform external line communication and extension line communication.
A power failure detection means for detecting a commercial power failure,
A power supply means having a backup power source capable of supplying power for a certain period of time even when a power failure occurs to a system component device or its internal component circuit;
Power supply intermittent circuit setting means for presetting a system component device that continues power supply for a certain time even during a power failure or an internal component circuit thereof, or a system component device that stops power supply during a power failure, or an internal component circuit thereof;
Power supply intermittent means for stopping or continuing the power supply from the power supply means based on the setting contents of the power supply interrupt circuit setting means,
A power supply stop notification means for notifying power supply stop to the extension communication device that stops power supply,
When stopping power supply,
When a power failure of the commercial power source is detected by the power failure detection means, the power supply interruption circuit setting means for the system component device or its internal component circuit that is preset to continue power supply for a certain period of time even at the time of power failure The power supply from the power supply means is continued by the power supply interrupting means,
The power supply from the power supply means is stopped by the power supply interrupting means for the system configuration equipment or its internal configuration circuit that is preset to stop power supply at the time of a power failure by the power supply interrupting circuit setting means,
When stopping the power supply to the extension communication equipment,
A key telephone system with a power-saving backup function, which can notify the power supply stop by an audible display or a visual display from a certain time before the power supply stop. In the key telephone system with a power-saving backup function according to claim 1 or 2,
The power supply means for the extension communication device is built in the key telephone main unit, and the star telephone wiring is provided between the plurality of extension communication devices and the key telephone main unit, and the key telephone main unit provides a plurality of power supply paths to the plurality of extension communication units. A key telephone system with a power-saving backup function, characterized in that power supply interrupting means is provided in all power supply paths, or one or more specific power supply paths. In the key telephone system with a power-saving backup function according to claim 1 or 2,
The power supply means for the extension communication device is built in the key telephone main unit, and the extension communication device group for each unit of a plurality of units and the key telephone main unit are star-wired, and each extension communication unit in a unit of a plurality of units If the key telephone main unit has one or more power supply paths for a certain number of units of extension communication equipment, the power supply paths are specified or specified. A key telephone system with a power saving backup function, characterized in that a power supply interrupting means is provided in one or a plurality of power supply paths. In the key telephone system with a power-saving backup function according to claim 1 or 2,
The power supply means for the extension communication device is built in one or a plurality of hubs with a power supply function, and between the one or more hubs with a power supply function and the key telephone main unit is a star wiring or a bus wiring, and one or a plurality of extension communication devices When the hub with power supply function is a star wiring and the hub with power supply function has one or a plurality of power supply paths with respect to one or a plurality of extension communication devices, all power supply paths or a specific one or A key telephone system with a power-saving backup function, characterized in that power supply interrupting means are provided in a plurality of power supply paths. In the key telephone system with a power-saving backup function according to claim 1 or 2,
The power supply intermittent circuit setting means classifies the system component equipment or its internal component circuit into a plurality, and supplies power according to the elapse of a fixed power outage time set arbitrarily or fixedly or according to the decrease in the power capacity of the backup power supply. A key telephone system with a power-saving backup function, characterized in that the system configuration equipment or the internal configuration circuit thereof is reduced step by step to narrow the power supply range step by step.

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