JPH0851500A - Electronic exchange system - Google Patents

Abstract

PURPOSE:To remarkably reduce power consumption by automatically stopping power feeding when a system is not used for a long time, in a telephone set to be stored in an exchange via a wire line and to be fed with power from the exchange via the wire line. CONSTITUTION:In a system where the power required in a multi-functional telephone set is made to be fed through an extension line L for extension connection by using the multi-functional telephone set as an extension telephone set to be stored in an electronic exchange 1 A and providing a power source device on the electronic exchange 1 A, the multi-functional telephone set is provided with an opening/closing means 214 opening and closing the extension line, a detection means 208 detecting the turn-off of illumination at a place where the telephone set in use is installed, and an operation control means 215 operating by the putting-out detection information by this detection means 208 and opening and operating the opening/closing means 214.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to power saving control of a multifunction telephone in an electronic exchange system.

[0002]

2. Description of the Related Art An exchange has become highly intelligent and highly functional by software control using a CPU (processor). By the way, a digital electronic exchange for a private branch exchange using a CPU enables various services in addition to the basic function of accommodating internal lines and external lines and performing exchange connection between internal lines and between internal lines and external lines. There is.

Thus, not only the original exchange operation,
As a variety of services have become available, a multifunction telephone is often used as an extension telephone in order to be able to receive the various services.

An electronic exchange system that accommodates a multifunction telephone as an extension terminal will now be described. FIG. 9 is a block diagram of an exchange system using a digital electronic exchange. In the figure, 1 is an exchange, 2-1 to 2-n are extension terminals such as extension telephones, 3-1 to 3-m are office lines, and 4-1 to 4
-M is a private line or a private line.

The exchange 1 accommodates extension terminals, office lines, leased lines, etc., and performs exchange connection between extension lines and between extension lines and outside lines. 10-1 to 10-m, 12-1 to 12-m, line circuits (subscriber circuits) 13-1 to 13-n, control unit (central control device CC) 14, storage unit 15, digital interface circuit 17, etc. Consists of.

The call path switch 11 is used to perform exchange connection between extension lines or from extension line to outside line (station line or private line) and from outside line to extension line, and the control unit 14 performs the exchange operation of the call line switch 11. It controls all kinds of control including control.

The storage unit 15 stores various control programs of the control unit 14, various tables, and data such as set function contents, and other various information generated in the exchange, such as a calling extension. Various information such as number information and its call time, the number of calls, the number of outgoing calls to the outside line, the telephone number of the destination, the call time, the call charge, and the current state are updated and stored in the storage unit 15, and the maintenance terminal 6 and A program and the like for controlling data exchange between the two are held.

The maintenance terminal 6 has an input means such as a keyboard and a display (display means), and can input and change data and programs to the exchange main body 1 and read data and the like. The digital interface circuit 17 is an interface for connecting the exchange 1 and external digital equipment, and the maintenance terminal 6
Is connected to the control unit 14 via the digital interface circuit 17. The digital interface circuit 17 is an interface capable of high-speed transmission of data and the like, and the maintenance terminal 6 can communicate with the control unit 14 of the exchange main body 1 via the digital interface circuit 17.

The line circuits 13-1 to 13-n of the exchange 1
Is an extension interface for extension connection provided for each extension and serves as a connection interface between the communication path switch 11 and each extension terminal. The trunk circuits 10-1 to 10-1
0-m and 12-1 to 12-m interface with the communication path switch 11 and the corresponding office lines 3-1 to 3-m and dedicated lines or private lines 4-1 to 4-m, respectively. This is a circuit that detects incoming calls and closes the DC loop for line capture.

Under the control of the control unit 14, the speech path switch 11 includes the line circuits 13-1 to 13-n and the trunk circuit 1.
It controls so that a communication path between 0-1 to 10-m and 12-1 to 12-m is formed to enable a normal exchange operation, and includes a time switch and a PCM highway. The PCM highway has line circuits 13-1 to 13-n
And trunk circuits 10-1 to 10-m, 12-1 to 12-
A time switch is a transmission path for transmitting voice signal data transmitted and received between m in a predetermined time slot corresponding to the other party, and the time switch is a line circuit 13-1 to 13-n or a trunk circuit 10-1 to 10-m. , 12-1 to 12-m of the PCM highway for time-division control of data input / output timing corresponding to time slots. The time switch operates under the control of the control unit 14.

Further, the tone oscillating circuit is a speech path switch 1
1 and is capable of transmitting various signal sounds necessary for the telephone system. Line circuit 13-1
~ 13-n and trunk circuits 10-1 to 10-m, 12-
1-12-m, each terminal control card such as the interface circuit 17 and the control unit 14 exchange signals with the control data highway 18. Since each terminal control card is assigned to an input / output port, Each terminal is provided with a decoding means of its own port number so that the terminal can be specified in the form of a port number that specifies the port number, and when the port number matches that of its own, it is recognized as an access to itself.

The above-mentioned components in the exchange 1 are connected to the control unit 14 via the control data highway 18, and the control unit 14 follows the line programs 13-1 to 13-1 in accordance with the control program stored in the storage unit 15 in advance. The normal switching operation is enabled by controlling the communication path between the 13-n and the trunk circuits 10-1 to 10-m and 12-1 to 12-m. In order to realize these controls, the storage unit 15 is provided with programs and data for performing various controls based on dial information, such as selecting a partner port number to be exchange-controlled and off-hook and on-hook signals. Has been done.

FIG. 10 is a perspective view showing a configuration example of a multifunction telephone used as extension telephone terminals 2-1 to 2-m accommodated in the exchange. In the figure, 2 is a telephone terminal body, 21 is a handset (handset), 22 is a hook mechanism, 23 is a dial mechanism (dial key), 24 is a function key, 24a is a cursor key, and 25 is a display lamp (LED; Light emitting elements) and 26 are display devices such as liquid crystal display panels for displaying characters.

FIG. 11 is a block diagram showing the circuit configuration of a multifunction telephone. In the figure, reference numeral 200 denotes a telephone terminal control unit, which is an interface circuit 206, a memory 270, a CPU 209, an LED control circuit 210, a key switch control circuit 211, a voice control circuit 212, a handset control. It has a circuit 213 and an LCD control circuit 241.

The interface circuit 206 is the electronic exchange 1.
The interface circuit 206 is an interface for exchanging control signals and call signals with the transmission side.
The line circuit (extension interface) 13 of the electronic exchange is connected to the line L via the line 3.
-I (i = 1, 2, 3, ...) Is connected.

The CPU 209 is a terminal device control element that plays a central role in controlling the multifunction telephone.
Call U. The terminal CPU 209 executes operation control as a control unit of the multi-function telephone based on a control program of the memory 270 composed of ROM and RAM.

The program executed by the terminal CPU 209 has an initial processing (initial setting processing) routine. When the multifunction telephone starts operating, the processing is automatically started at the initial stage and the function key 24 is operated. The memory 270 is provided with a program for receiving key allocation data, which is the key data to be set, as key number information for each key from the control unit 14 of the private branch exchange, and storing the received key allocation data in the memory 270. There is.

Further, the telephone terminal does not have key information, but gives an instruction by notifying the key number to the control unit 14, and the control unit 14 determines an input instruction based on the key number. You can also

The LED control circuit 210 is an LED 25 provided for the function key 24 in the multi-function telephone.
The key switch control circuit 211 is a driver for turning on / off an LED provided as a status display lamp, and the key switch control circuit 211 is a function key 24 in the multifunction telephone, each key switch such as a cursor key 24a, and a dial key 23. The voice control circuit 212 sends a ringer signal or a voice signal to the speaker 218, the handset control circuit 213, or sends the voice from the handset 21 to the electronic exchange. For example, a codec for converting an analog voice signal into digital voice data or a digital voice data into an analog voice signal is included.

The LCD control circuit 241 is for driving a display device (LCD (liquid crystal display)) 26 which is a character display in a multi-function telephone, and displays data and control signals from the terminal CPU 209. The character display is controlled by.

In the system having such a configuration, if there is an incoming call from an outside line, the control unit 14 causes the trunk circuits 10-1 to 10-1.
10-m, 12-1 to 12-m detects an incoming call, and the extension terminal set as a representative (in the case of a repeater system or extension group type) or directly, the corresponding extension (PBX dial-in; from the central office) Obtain a subscriber number and assign it to an extension so that it can be received directly by dialing the subscriber number). Then, the communication path is secured by the response of the extension terminal, and the communication between the two is enabled. To transfer this call to another extension, use the transfer operation from the receiving terminal.

Then, the control unit 14 of the exchange 1 checks the regulation for the extension of the transfer destination and calls the extension if the connection is possible. When the other party responds, the extension terminal that has performed the transfer operation is turned off, so that the control unit 14 secures the communication path between the transfer destination extension and the calling side external line and enables the two parties to talk.

The call from the extension line to the outside line is made by the call operation of the extension terminal, and the control unit 14 causes the trunk circuits 10-1 to 10-
m, 12-1 to 12-m, look for an empty one, check the connection restriction with the calling extension, and if connection is possible, use this empty trunk circuit to secure the call path, This is done by outputting dial information to the exchange. And
Communication is possible when connected to the other party via the central office switch.

Between the extensions, receiving the extension number from the calling extension,
Check the connection regulation between the extensions, if the connection is possible, control the incoming call to the line circuit of the corresponding extension number, and secure the call path by the connection terminal of the line circuit responding,
Enable communication.

Various controls including transmission / reception control of a trunk circuit and a line circuit are performed using port numbers. For example, if a certain extension number A is assigned to the port number PN n, the extension number A is assigned. When calling, the method of accessing the port number PN n is used. Such control is realized by the control unit 14 controlling based on the terminal-port number information stored in the storage unit 15.

By the way, the multi-function telephone has a display, a lamp, a speaker, various control circuits, and the like, and a large amount of electric power is required to operate them. Therefore, in order to cover this electric power, a DC power supply device DC-PWS is provided in the exchange 1 to supply the electric power to the line circuits 13-1 to 13-n which are extension interfaces for connection for the multifunction telephone.

In the line circuits 13-1 to 13-n, the line L, which is a two-line extension line, is connected through the transmission transformer 31 to maintain insulation of the direct current component from the communication path switch side. The (line L) is also used as a power supply line to supply the output power of the DC power supply device DC-PWS to the extension line. That is, since the transmission transformer 31 insulates the DC system, signal and data components and DC power can be mixedly sent in the extension line, and after passing through the extension line, the signal and data components and DC power are separated. It becomes a structure that can be exchanged.

The power supply to the extension line is a DC power supply device DC
-The output of PWS is adjusted to a required voltage by the power supply circuit 32 and supplied. The signal and data components are connected to the interface circuit 34 via the transmission transformer 31, and are connected to the PCM highway of the communication path switch 11 via the interface circuit 34.

On the other hand, the telephone terminal control unit 200 is also provided with a transmission transformer 243, and the line L is connected to this transmission transformer 24.
3 to the interface circuit 206. Through this transmission transformer 243, it is possible to cut the DC component of the line L and transmit only the signal or data component to the interface circuit 206. A power feeding circuit 242 is connected to the line L connection side of the transmission transformer 243, and converts the DC component fed by the line L into a necessary voltage to be used as a power source for the multi-function telephone.

In this way, the electric power required for the multi-function telephone is supplied from the exchange side through the extension line, and DC of various voltages required in the multi-function telephone are generated and used in the multi-function telephone. However, its power consumption is by no means small.

As the digital electronic exchange becomes multifunctional, a large number of multifunction telephones are installed and used as extension telephones so that the functions can be utilized. Therefore, the power consumption of the exchange system is inevitable. It becomes big.

The multi-function telephone is in a state where no call is being made,
For example, even in the standby state, it consumes as much power as in the call state, which is very wasteful from the viewpoint of energy saving. Moreover, even though the telephone is not used at all in an unmanned state such as at night, it is terribly wasteful that the same amount of power is consumed as in the call state.

[0033]

In a digital electronic exchange, there is a tendency that many multifunction telephones are used as extension terminals. Since this telephone consumes a large amount of power, if the number of terminals accommodated is large, the power consumption of the exchange system will also be large.

This telephone consumes the same amount of power as when in a call, even when it is not in a call (standby), and can be used not only in the daytime but also at night or in an unattended state. However, even if it is equal to no, there is a complete waste of power consumption in this standby state.

This is a big problem from the viewpoint of energy saving, and there is an urgent need for improvement in terms of running cost. Therefore, an object of the present invention is to provide an electronic exchange system in which a telephone housed in an exchange through a wired line and supplied with direct current power from the exchange through the wired line as an extension terminal has an extension terminal at night. Another object of the present invention is to provide an electronic exchange system capable of significantly reducing power consumption by automatically stopping power supply when it is not used for a long time such as on a holiday.

[0036]

In order to achieve the above object, the present invention is configured as follows. That is, in a system in which a multifunction telephone is used as an extension telephone housed in an electronic exchange and a power supply device is provided in the electronic exchange to supply power required by the multifunction telephone through an extension line for extension connection. The multifunctional telephone is provided with an opening / closing means for opening / closing an extension line, a detecting means for detecting whether or not the light is turned off at a place where the extension telephone is installed, and operates according to the light-off detection information by the detecting means. Power down notification is sent to the extension line, and then the terminal control unit that issues a shutoff command to open the opening and closing unit, and the extension line is connected without feeding through the opening and closing unit. In response to the disconnection command, the opening / closing means is opened, and the hook mechanism is operated to close the opening / closing means, or When the power supply to the road is lost and restored, the operation control means for closing the opening / closing means is provided as an initial operation, and when the electronic exchange receives the notification of power down transition, the notification generation extension power down transition is registered. However, a power-down command is given to another extension that has been determined in advance corresponding to the extension that has undergone power-down transition, and if there is an incoming call for an extension that is in the power-down transition state, power is temporarily supplied to the extension line of that extension. After the power supply is stopped, the power supply is restarted, and thereafter, a control unit having a control function for performing incoming call control is provided and configured.

[0037]

According to the present invention, the opening / closing means is used when the AC power supply at the terminal installation location is monitored by the detection means of the multi-function telephone and it is confirmed that the AC power is off (light off) or when the room brightness is detected and it is dark. To stop the power supply to the phone,
It is a system that shifts to a low power consumption mode.

In the multi-function telephone that has once entered the low power consumption mode, the handset of the telephone is lifted and the hook switch is closed, whereby the operation control means closes the opening / closing means and resumes power supply to the telephone. Further, when an incoming call to the connection extension of the multi-function telephone occurs, the electronic exchange temporarily stops the power supply, and then restarts it to cause the operation control means to perform an initialization operation and close the opening / closing means to supply power. Let it start.

As described above, since it is confirmed that the terminal installation place is turned off and the telephone is powered down, that is, shifted to the low power consumption mode in which the power supply is stopped, it is possible to use the telephone at rest or at night. The power consumption of the electronic exchange at the end of work can be reduced. Further, this low power consumption mode continues until the handset of each telephone is lifted or until an incoming call occurs, so that power consumption can be suppressed even in the daytime until someone lifts the handset. Further, since there is no power supply in the low power consumption mode, it is possible to suppress the problem of heat generation and the problem of element deterioration.

[0040]

Embodiments of the present invention will be described below. (Embodiment 1) In Embodiment 1, in order to save energy in the standby state, the telephone is provided with a cutoff switch that is excited by power supply from the digital electronic exchange and maintains the power supply path, and the usage state of the room light. If the telephone is equipped with a device that monitors the power line from the power line, and if the telephone detects that the room is not in use, the telephone notifies the exchange of the power-down (power-off) transition, and the telephone itself opens the cut-off switch to supply power. In addition, the exchange receiving the above-mentioned notification instructs the other telephones to power down, opens each cutoff switch to cut off the power supply, and stops the power supply, and restarts the power supply. It is to be linked with the off-hook operation of the telephone or the generation of an incoming call to the telephone during the power down of the exchange.
Hereinafter, the details will be described.

The basic configuration of this system is shown in FIGS.
It is the same as the conventional one explained in. Therefore, here, the same components as those of the conventional one are designated by the same reference numerals and the description thereof will be omitted.
The present invention will be described focusing on different parts.

FIG. 1 is a block diagram showing an embodiment of the present invention. 1A is an electronic exchange, and 13A-1 to 13A-n.
Is a line circuit that is a connection interface for connecting an extension to the exchange 1A, and is a connection interface for connecting a multifunction telephone inside the electronic exchange 1A. 2A-1
2A-n are extension terminals, which are multifunction telephones of the present invention. 3-1 to 3-m are local lines and 4-1 to 4-m are dedicated lines and private lines.

The exchange 1A accommodates extension terminals, office lines, dedicated lines, etc., and performs exchange connection between extension lines and between extension lines and outside lines. 10-1 to 10-m, 12-1 to 12-m,
It is composed of line circuits (subscriber circuits) 13A-1 to 13A-n, a control unit (central control device CC) 14A, a storage unit 15, a digital interface circuit 17, and the like. Also, exchange 1
A DC power supply device DC-PWS is provided in A and supplies required DC to the line circuits 13A-1 to 13A-n.

Multifunctional telephone 2A of the present invention which is an extension terminal
-1 to 2A-n are as shown in FIG. 2, the telephone terminal control unit 200A, the handset 21, the hook switch 22a of the hook mechanism 22, the dial mechanism (dial key) 2
3, a function key 24, a cursor key 24a, a display lamp 25, a character display 26, and the like.

The telephone terminal control unit 200A has an interface.
Circuit 206, memory 270, CPU 209A, LE
D control circuit 210, key switch control circuit 211, voice control circuit 212, handset control circuit 213, LCD
It has a control circuit 241 and a power feeding circuit 242.

The interface circuit 206 is the electronic exchange 1.
The interface circuit 206 is an interface for transmitting and receiving control signals and call signals to and from the A side.
A line circuit (extension interface) 1 of the electronic exchange connected to the line L via the line 43
3A-i (i = 1, 2, 3, ...).

The power supply circuit 242 requires the DC power supplied from the line circuit (extension interface) 13A-i of the electronic exchange through the line L, which is an extension line having a two-line structure, in the multifunction telephone. It is converted into a DC voltage output and supplied as a driving power source for each component in the multi-function telephone, and is constituted by, for example, a DC-DC converter.

The CPU 209A is a terminal device control element that plays a central role in controlling the multi-function telephone.
Called PU. The terminal CPU 209A executes operation control as a control unit of the multi-function telephone based on the control program of the memory 270 constituted by ROM and RAM.

The program executed by the terminal CPU 209A has an initial processing (initial setting processing) routine. When the multifunction telephone starts operating, the processing is automatically started at the initial stage and the function key 24 is operated. The key assignment data, which is the key data to be set, is received from the control unit 14A of the private branch exchange as key number information for each key, and the memory 270 is provided with a program for storing the received key assignment data in the memory 270. There is.

Further, the telephone terminal does not have key information, but gives an instruction by notifying the key number to the control unit 14A, and the control unit 14A determines an input instruction based on the key number. You can also

The LED control circuit 210 is an LED 25 provided for the function key 24 in the multi-function telephone.
The key switch control circuit 211 is a driver for turning on / off an LED provided as a status display lamp, and the key switch control circuit 211 is a function key 24 in the multifunction telephone, each key switch such as a cursor key 24a, and a dial key 23. The voice control circuit 212 sends a ringer signal or a voice signal to the speaker 218, the handset control circuit 213, or sends the voice from the handset 21 to the electronic exchange. For example, a codec for converting an analog voice signal into digital voice data or a digital voice data into an analog voice signal is included.

The LCD control circuit 241 is for driving a display device (LCD (liquid crystal display)) 26 which is a character display in a multi-function telephone, and displays data and control signals from the terminal CPU 209. The character display is controlled by.

In the present invention, the telephone terminal control unit 200
A is further provided with a power line monitor interface 208, a relay control circuit 215, and a relay 214. And
The relay 21 is connected in series to the line L connection side of the transmission transformer 243.
4 relay contacts are connected in series, and the relay 214
The line L can be cut off by this. The relay 21
By disconnecting the line L by 4, the DC power supply to the multi-function telephone is cut off, and the multi-function telephone is set to the low power consumption mode.

Further, the input portion of the relay control circuit 215 is connected to the line L, and even if the relay contact of the relay 214 is opened, the relay control circuit 215 supplies the DC power sent from the exchange 1A side to the line L. Are ready to receive. Further, the relay control circuit 215 is reset when power supply is started, and has a function of turning on the relay 214 as its initial state. Therefore, the relay control circuit 215 is also in the low power consumption mode.
Can be put into operation by supplying DC power from the exchange 1A to the line L, and by stopping the power supply and then restarting the power supply, the relay 21
4 is configured to be able to perform drive control so that its contact point is closed.

The relay control circuit 215 is configured to operate by the hook switch 22a of the hook mechanism 22 of the multi-function telephone to control the drive of the relay 214. Therefore, when the hook mechanism 22 is off-hooked in the low power consumption mode, the relay 214 is drive-controlled to close the relay contact, and the DC power supplied to the line L can be supplied to the power supply circuit 242 of the multifunction telephone. It is possible.

A power line monitor interface 208 is provided in the multifunction telephone. The power line monitor interface 208 is a commercial power supply voltage (AC 100 V or A) for the power line in the room in which the multifunction telephone is installed.
C200V) is detected, and when a switch is turned off to turn on the illumination lamp in the room, the power line in the room loses its voltage. This is detected and the detection output is input to the terminal CPU 209A. , Is configured to notify that the off operation has been performed.

In addition to the above-mentioned functions, the terminal CPU 209A receives the detection output from the power line monitor interface 208, and when the detection output continues for a predetermined time or longer, the multifunction telephone is set to a low level. In order to switch to the power consumption mode, the electronic exchange 1A is notified of the shift to the low power consumption mode (power down), and
After that, a relay cutoff command is generated and the relay control circuit 21
5 has the function of inputting.

When the power-down command is received from the electronic exchange 1A, the terminal CPU 209A is notified of the shift to the low power consumption mode (power-down), and then the relay is activated. It has a function of generating a cutoff command and inputting it to the relay control circuit 215.

When the relay control circuit 215 receives this relay cutoff command in the normal mode (normal state), it controls the drive of the relay 214 to open its relay contact, and the power supply of the multi-functional telephone of the DC power supplied to the line L. It also has a function of controlling to switch to the low power consumption mode by cutting off the input to the circuit 242.

It should be noted that the control unit 14A of the exchange 1A is notified by the line circuit 13A-i (i = i = i) that the multifunctional telephone is to shift to the low power consumption mode (power down; that is, shift to the low power consumption mode). 1, 2, 3 ...), it has the function of registering this and sending a power down command to another extension via the line circuit corresponding to the other extension. The other extension in this case is a preset extension, such as an extension in the same room, an extension of the entire floor or the entire building, or a specific extension around the multifunction telephone that has detected the turn-off. Such,
It shall be freely set according to the needs of the user.

Further, the terminal CPU 209A has a function of performing an initialization operation when power supply is started, and thereafter having a function of sending a power-on code to the line L to the electronic exchange 1A, When the control unit 14A receives the power-on code via the line circuit, the exchange 1A confirms that the multi-function telephone has restarted from the low power consumption mode to the normal state, and performs the initialization process for the extension. Have the function to do.

In the present invention, the line circuit 13A-i (i = 1, 2, 3 ...) Of the exchange 1A also has a C
When the PU 33 is provided and the extension which has shifted to the low power consumption mode receives an incoming call, the control unit 14A causes the CPU 33 of the line circuit 13A-i to which the extension is connected to temporarily output the output of the power feeding circuit 32. A command is given to turn off the power supply, and thereafter, the power supply circuit 32 is controlled to restart the power supply, and the extension that has shifted to the low power consumption mode is restarted.

FIG. 3 is a system block diagram showing the part improved by the present invention. The basic operation of this system is basically the same as that described in the conventional example. Therefore, here, the description will refer to the conventional example, and the operation in the low power consumption mode which is the object of the present invention will be mainly described.

In this system, the DC power obtained by the DC power supply device DC-PWS of the exchange 1A is applied to each line circuit 1
3A-1 to 13A-n, and each line circuit 13A-
In each of 1 to 13A-n, each power supply circuit 32 converts the power into a required DC voltage and supplies it to the line L.

On the side of the multi-function telephone, the DC power supplied to the line L is supplied to the power feeding circuit 242 through the contact of the relay 214, converted into a required voltage here, and supplied to the components inside the multi-function telephone as a power source. , Enable operation.

The components inside the multi-function telephone consume a large amount of power, and also consume a large amount of power in the standby state, which is a state other than the call state. Therefore, in an unattended state in which the telephone is in a standby state and is unlikely to use the telephone, the multifunction telephone side automatically cuts off power supply to itself. This is the power line monitor interface of the multifunctional telephone,
By monitoring the power supply and, for example, confirming AC disconnection (light-out) due to the distribution board, power line switch, etc., stop the power supply to the control circuit etc. in the telephone and shift to the low power consumption mode. carry out.

In other words, the power line monitor interface (I / F) 208 for detecting the turn-off of the light in the room where the multifunctional telephone is installed is based on the voltage of the power line.
Therefore, the voltage applied to the illuminating lamp is detected as a signal through an AC / DC converter or the like, and is output from the power line monitor interface 208.
By monitoring with 09A, it is monitored that the light is turned off.

When the terminal CPU 209A detects that the illumination lamp is turned off (step S1 in FIG. 4),
When this state is continued for a predetermined time, the electronic exchange 1A is notified of the shift to the low power consumption mode (power down) in order to set the multifunctional telephone to the low power consumption mode (step of FIG. 4). S2). Then, after that, a cutoff command is given to the relay control circuit 215.

The notification information output by the terminal CPU 209A indicating that the electronic exchange 1A is to shift to the low power consumption mode (power down) is transmitted by the transmission transformer 243,
The signal is output to the line L via the contact of the relay 214, and is passed to the control unit 14A via the transmission transformer 31 and the interface circuit 34 on the side of the line circuit 13A-i.

Upon receipt of this notification, the control unit 14A registers that the extension of the multi-function telephone which has issued the notification has shifted to the low power consumption mode. This is done by registering in the storage unit 15.

Further, the control unit 14A registers the other extension to be transferred to the low power consumption mode together with the extension with the registration information of the storage unit 15 (this is set in advance as the extension is transferred to the low power consumption mode). , And sends a power down command to the line circuit 13A-k (k = 1, 2, 3, ...) To which the extension (a multifunction telephone is connected as an extension terminal) is connected.

This power-down command is output from the interface circuit 34 to the line L via the transmission transformer 31, and on the multi-function telephone side, this command is taken into the interface circuit 206 via the contact of the relay 214 and the transmission transformer 243. Further, the interface circuit 206
Gives this to the terminal CPU 209A.

In response to this, the terminal CPU 209A generates a relay cutoff command and inputs it to the relay control circuit 215 (step S3 in FIG. 4). When the relay control circuit 215 receives this relay cutoff command in the normal mode (a normal state in which direct current is supplied from the power supply circuit 242), the relay control circuit 215 drives and controls the relay 214 to open its relay contact,
The input of the DC power supplied to the line L to the power supply circuit 242 of the multi-function telephone is cut off, and control is performed to shift to the low power consumption mode (step S4 in FIG. 4).

When the power-down command is transmitted, the control section 14A stores that the extension multi-function telephone to which the power-down command is transmitted is in the low power consumption mode. This is a registration process for performing an initialization process for the extension when it is confirmed that the multi-function telephone has restarted from the low power consumption mode to the normal state.

As a result, when the illumination lamp in the room is turned off, the multi-function telephone installed in the room operates in a low power consumption mode.
Only the relay control circuit 215 is supplied with power and operates, but other components are in a low power consumption state in which power is cut off.

The restart (return) from the low power consumption mode to the normal state is performed as follows. The restart is performed when an incoming call is made to the multi-function telephone set in the low power consumption mode and when an off-hook operation is performed.

The multifunction telephone has a hook switch 22a for detecting the off-hook of the handset, and the relay control circuit 215 knows the off-hook by the operation of the hook switch 22a when the hook mechanism 22 of the multifunction telephone is off-hook and relays the relay 214. The contact is controlled to be closed (steps S21 and S22 in FIG. 5). As a result, the relay 214 operates and closes its contact, so that the DC power supplied to the line L is supplied to the power supply circuit 242 of the multi-function telephone (step S23 in FIG. 5). Then, each element of the multi-function telephone starts operating by this power supply.

The terminal CPU 209A of the multi-function telephone performs the initialization operation by starting the power feeding, and then the electronic exchange 1
The power-on code is sent to A, whereby the exchange 1A confirms that the multifunction telephone has restarted from the low power consumption mode to the normal state (step S2 in FIG. 5).
4). The above is the restart operation of the handset off-hook.

When an incoming call is made to the multi-function telephone set in the low power consumption mode, it operates as follows. When there is an incoming call on the extension that has shifted to the low power consumption mode, the control unit 1
4A knows from the registered contents that the extension is in the low power consumption mode, and first gives a command to the line circuit 13A-i to which the extension is connected to return to the normal state ( Steps S31 and S32 in FIG. 6).

In response to this command, the CPU 33 of the line circuit 13A-i gives a command to turn off the output of the power feeding circuit 32 once, and then controls the power feeding circuit 32 to restart power feeding to enter the low power consumption mode. Control is performed to restart the transferred extension (step S32 in FIG. 6). And
Start the call connection process.

On the other hand, since the multifunctional telephone side has shifted to the low power consumption mode, the relay control circuit 215 is in the state of turning off the relay contact of the relay 214 (step S33 in FIG. 6). Then, in step S32,
The CPU 33 of the line circuit 13A-i once controls the power feeding circuit 32 to turn off the output of the power feeding circuit 32, and then controls to restart the power feeding from the power feeding circuit 32 to temporarily stop the power feeding and restart the power feeding. Therefore, the power supply to the relay control circuit 215 is temporarily interrupted on the multi-function telephone side.

Therefore, the relay control circuit is reset at the time of resumption of power supply to excite the relay 214 as an initial state of control, and turns on its relay contact (step S34 in FIG. 6). When the relay contact is turned on in this way,
The direct current supplied to the line L from the exchange 1A side is supplied to the power feeding circuit 242 on the multi-function telephone side, the power feeding circuit 242 starts its function, and each element on the multi-function telephone side starts operating ( Step S35 of FIG. 6).

The terminal CPU 209A of the multi-function telephone performs the initialization operation by starting the power feeding, and then the electronic exchange 1
A power-on code is sent to A, whereby the exchange 1A confirms that the multifunction telephone has restarted from the low power consumption mode to the normal state (step S3 in FIG. 6).
6).

Then, the line circuit 13A-i for connecting the multi-function telephone set, which has been returned to the restarted state under the incoming call control from the control section 14A of the exchange 1A, recognizes the incoming call to itself by the function of the CPU 33, The ringer ringing signal sent from the exchange 1A via the PCM highway is sent to the multifunction telephone via the line L to notify the incoming call.
After that, general incoming call control is performed between the multifunction telephone and the control unit 14A via the line circuit 13A-i, and the multifunction telephone responds to secure the communication path and enable the call. .

The above-described operation for restarting (returning) from the low power consumption mode to the normal state is the same for other multifunction telephones in the low power consumption mode.
The electronic exchange and the multi-function telephone housed therein are connected by a communication line that is a two-line communication line, and DC power is sent from the power supply circuit in the electronic exchange to this communication line. In a multi-function telephone, this DC power is converted into a predetermined voltage by a DC / DC converter which is a power feeding circuit inside the multi-function telephone, and this is used as a power source for operation.

As described above, the power source of the multi-function telephone is supplied from the exchange side through the extension line. The multifunction telephone is also provided with a transmission transformer for separating the DC component, and is connected to the extension line via this transmission transformer. Then, the voice data and the control data are given to the interface of the multi-function telephone via the transmission transformer, and the DC power is supplied to the internal power supply circuit in the multi-function telephone from the extension line. Then, the internal power supply circuit converts the DC power supply output of various voltages required in the multi-function telephone, supplies it to each component in the multi-function telephone, and drives each component.

In the first embodiment, a low power consumption mode for cutting off the power consumption of the multifunction telephone when not in use is provided.
This transition to the low power consumption mode is linked to the AC power supply for the indoor lighting at the location where the multi-function telephone is installed. When the AC power is off and the lighting is off, the surroundings are unattended or On the assumption that the telephone does not need to be used, if this state continues for a predetermined time (for example, if it continues for several minutes), the terminal CPU of the multi-function telephone informs the exchange of the power down transition. And then
And by disconnecting the communication line from the exchange to itself,
The power supply line is cut off by itself to shift to the low power consumption mode. Also, the exchange receives a power down transition notification and gives a power down command to other multi-function telephones, so that other multi-function telephones also consume power. It was decided to shift to the mode.

Therefore, in the first embodiment, the exchange system having a structure in which the direct-current power required by the multi-function telephone is supplied from the line circuit for connecting the multi-function telephone used as the extension via the communication line for the extension. In the multi-function telephone, the light-off detection means (electric light) which detects the voltage of the power line of the illumination lamp in the room where the telephone is installed and obtains this detection information as light-off information (unmanned state information) when the voltage disappears. A line monitor interface 208) is provided, and a switch (relay 214) for opening and closing the line of the communication line is connected to the multi-function telephone, which is directly connected to the communication line without using this switch and is supplied with power from the communication line. In response to the operation, the switch is closed at the beginning of power supply, and when the cutoff command is received, the switch is opened to turn off the multifunction telephone. When the switch control means (relay control circuit 215) that closes this switch when operated, and the detection information from the light-off detection means is obtained, a notification of low power consumption mode transition is sent to the exchange side, and the switch control means is shut off. A telephone control means (terminal CPU) which has a function of generating a command and which gives a cutoff command to the switch control means when a power down command is received from the exchange side.
209A) is provided, and when the exchange receives a notification of power down transition, it gives a power down command to another preset extension, and once an incoming call is received to the extension in the low power consumption mode. The power supply to the extension is stopped and then restarted to enter the call connection control.

As a result, if the illumination lamp in the room is turned off, a request for shifting to the low power consumption mode is made by the multi-function telephone set, and the control means of the multi-functional telephone set which has made the request notifies the exchange of the power-down shift. In addition, it issues a shutdown command to its own switch to open the line to perform power down, and when the exchange receives the notification, it sends a power down command to another preset extension, and the other extension In this case, the telephone control means gives a command to the switch control means to open the switch, opens the switch, disconnects the connection with the communication line, and cuts the DC power supply, thereby When there are no people, the multifunctional telephone can be put into the low power consumption mode.

Further, when a call arrives at an extension in the low power consumption mode, the switch closes the switch by temporarily stopping the power supply to the extension and then restarting it to perform the reset operation of the switch control means. The switch control means can be controlled so that when the off-hook operation is performed, the switch control means controls the switch to be closed, so that the low power consumption mode is switched to the normal mode by the incoming call occurrence or the off-hook operation. Can be made.

In this embodiment, the control unit 14A of the exchange 1A is notified by the line circuit 13A that the multi-function telephone is to shift to the low power consumption mode (power down; that is, shift to the low power consumption mode). -I (i = 1,
2, 3 ...), it is registered, and the power-down command for another extension is sent through the line circuit corresponding to the other extension.
In this way, if the power line monitor interface is provided in one multi-function telephone, it becomes possible to power down the other multi-function telephones when the illumination lamp is turned off to enter the low power consumption mode. It is possible to reduce the system cost and minimize the wiring layout for the power line monitor.

In this case, however, it is often necessary to change the settings for a user who relatively frequently needs to change the layout of extension lines or change the group to be powered down, such as changing the floor layout. It may be difficult to operate. In order to cope with such a user, it is advisable to adopt a configuration in which the detection of the turn-off of the illumination lamp and the power-down operation accompanying it are completed by each individual multi-function telephone.

This example will be described as a second embodiment. (Embodiment 2) In this embodiment, a low power consumption mode for cutting off the power consumption of the multi-function telephone when not in use is provided, and the transition to this low power consumption mode is performed by an indoor illumination lamp at the installation location of the multi-function telephone. If the AC power supply is turned off and the illumination lamp is turned off, it is assumed that the surroundings are unattended or it is not necessary to use the telephone, and this state is set to a predetermined value. If you continue for a while,
The terminal CPU of the multi-function telephone notifies the exchange of the power-down transition and issues a disconnection command to its own relay control circuit 215 to open the contact of the relay 214. Lighting detection of the illumination lamp is performed by each multi-function telephone,
Basically, there is no difference from the first embodiment except that a self-contained system in which power down is performed only by the multifunction telephone that detects the power down.

Therefore, the second embodiment is the same as the first embodiment except that a power down command is not issued to other extension multi-functional telephones even if the exchange receives the notification of power down transition.

When the AC power supply at the place where the multifunctional telephone is installed is turned off, the terminal CPU 209A in the multifunctional telephone can detect it by the power line monitor interface 208, and the terminal CPU 209A remains off for a certain period of time. When it continues (for example, for several minutes), the process for shifting to the low power consumption mode is started.

In this processing, first, the terminal CPU 209A in the multifunction telephone of a certain extension notifies the electronic exchange 1A that the low power consumption mode will be entered (power down). In response to this, the exchange 1A then registers the power-down of the extension (that is, low power consumption). In addition, the terminal CPU 2 in the extension multi-functional telephone
09A gives a cutoff command to the relay control circuit 215, and the relay control circuit 215 thereby turns off the contact of the relay 214.

When the multi-function telephone shifts to the low power consumption mode by this, communication with the exchange 1A is interrupted. However, if the exchange 1A simply disconnects the line L (plugout state) by the notification, It can be distinguished from the case where the multi-function phone shifts to the low power consumption mode.

The individual multi-function telephones perform such an operation, and the circuits other than the relay control circuit 215 in the multi-function telephone are disconnected from the line L, and as a result, the power consumption can be greatly suppressed. In addition, each multi-function phone is a system that powers itself down when it detects turning off and shifts to a low power consumption mode.
For users whose extension installation status changes frequently, operation becomes easy even if a change occurs.

Since the multifunctional telephone set in the low power consumption mode and the electronic exchange 1A cannot communicate with each other, the exchange 1A must first restart the multifunctional telephone set to the normal state. There is an off-hook operation by the handset or an incoming call, which is exactly the same as in the first embodiment.

That is, when the multi-function telephone set in the low power consumption mode is restored (restarted) by the off-hook operation, the handset 21 is raised. When the handset 21 is lifted, the hook mechanism 22 and the hook switch 22a are closed, and this is detected by the relay control circuit 215.

The relay control circuit 215 is the hook switch 2
When it is confirmed that 2a is closed, the relay 214 is turned on. Then, the power supply to the circuit in the multifunction telephone is restarted by the power feeding circuit (DC / DC converter) 242, and the terminal CPU 209A performs the restart processing of the multifunction telephone. After performing the initialization operation, the terminal CPU 209A sends a power-on code to the electronic exchange 1A, whereby the exchange 1A confirms that the multifunction telephone has restarted from the low power consumption mode to the normal state.

That is, in the exchange 1A, the control unit 14A receives the power-on code from the multi-function telephone, thereby knowing that the multi-function telephone is restarted, and the connection extension of the multi-function telephone has low power consumption. The fact that the mode has returned to the normal state is registered in the storage unit 15, and the registration of the low power consumption mode is deleted. Then, the normal service for the extension can be performed.

When an incoming call arrives at the multi-function telephone set in the low power consumption mode, the multi-function telephone set and the electronic exchange 1
Since A cannot communicate, the exchange 1A first restarts the multifunction telephone.

The control unit 14A of the exchange 1A knows from the information of the list of extension lines for transition to the low power consumption mode registered in the storage unit 15 that the extension which has received the call is in the low power consumption mode, and the extension of the receiving destination is A command to suspend power supply is sent to the line circuit 13A-i (i = 1, 2, 3, ...) That is the function telephone interface.

Then, in the line circuit 13A-i, the internal CPU 33 controls the power supply circuit 32 by this power supply temporary stop command, temporarily stops the power supply to the multi-function telephone, and supplies the power after a fixed time (for example, 1 second). Perform the process of restarting.

Although the relay control circuit 215 of the multi-function telephone monitors the hook switch 22a even in the low power consumption mode, the power feeding circuit 32 in the board of the line circuit 13A-i which is the multi-function telephone interface is used. When the power supply of is stopped, the operation also stops. After that, when power supply from the power supply circuit 32 in the line circuit 13A-i is restarted, the relay control circuit 215 is reset, and the relay 214 is turned on as its initial state. Then, the line L is connected to the transmission transformer 243 side, and the DC voltage supplied to the line L from the exchange side is supplied to the power supply circuit 242 in the multi-function telephone to supply power to the circuit in the multi-function telephone by DC. It is restarted by the power feeding circuit 242 configured by the / DC converter.

As a result, the terminal CPU 209A receives the power supply and performs the restart process of the multi-function telephone. After performing the initialization operation, the terminal CPU 209A of the multifunctional telephone sends a power-on code to the exchange 1A.
CPU 33 in the circuit board of the line circuit 13A-i, which is the multifunction telephone interface receiving this code.
Starts the call connection process for the terminal CPU 209A in the multifunction telephone.

In the description of the first and second embodiments, registration of the low power consumption mode is performed by the control unit 14A in the exchange 1A.
The CPU of the line circuit 13A-i temporarily suspends / restarts the DC power supply for restarting the multi-function telephone when an incoming call occurs by a command from the control unit 14A in the exchange 1A.
Although the description has been made on the assumption that the line circuit 13A-i manages registration of the low power consumption mode,
When an incoming call is made to the multifunction telephone, the CPU 33 in the extension connection line circuit 13A-i causes the power feeding circuit 32 to operate.
It is also possible to perform a process for restarting that the power supply to the multi-function telephone is temporarily stopped by controlling the power supply, and the power supply is restarted after a fixed time (for example, 1 second).

This will be described. The line L is connected to the multifunctional telephones 2A-j and the electronic exchange 1A in the low power consumption mode.
Since it is not possible to communicate because the call is blocked, the exchange 1A must first restart the multifunction telephone. The CPU 33 in the line circuit 13A-i, which is the multifunction telephone interface board, is the multifunction telephone 2A.
When an incoming call to -j occurs, the power supply circuit 3 is controlled to temporarily stop the power supply to the multi-function telephone 2A-j and restart the power supply after a fixed time (several seconds).

Relay control circuit 2 of multifunction telephone 2A-j
15 is a hook switch 22 even in the low power consumption mode
Although a is monitored, when the power supply from the power supply circuit 3 of the multi-function telephone interface board 2 is stopped, the operation also stops. After that, when power feeding from the power feeding circuit 3 is restarted, the relay control circuit 215 is reset and the control circuit 2 is reset.
As the initial state of 15, the contact of the relay 214 is turned on. As a result, the DC power of the line L is supplied to the power feeding circuit 242.

Then, the supply of the DC power to the various circuit components in the multi-function telephone 2A-j by the power feeding circuit 242 is restarted, whereby the terminal CPU 209A performs the restart process of the multi-function telephone 2A-j. Terminal CPU 209
After performing the initialization operation, B sends a power-on code to the exchange 1A.

The CPU in the line circuit which is the multi-function telephone interface in the exchange 1A which receives this code.
33 cancels the registration of the low power consumption mode of the extension for self-connection, and the terminal CPU 2 in the multifunction telephone 2A-j.
The call connection process is started for 09A.

Since the conventional electronic exchange and multifunction telephone have no function of cutting off the power supply to the unused multifunction telephone in order to save electric power when they are unused for a long time, In a switching system in which a large number of multifunction telephones are connected as extension telephones, there was no choice but to waste a lot of power, but in this system that enabled the power saving control described above, power saving and By stopping the driving of the circuit when not in use for a certain period, the problem of heat generation and the problem of the life of the device accompanying it can be solved. Also, paying attention to the fact that indoor lighting is turned on during work at offices and offices, etc.
This is a configuration that is known from the off state of the room lighting, and therefore, this can be detected with a simple configuration, so that there are advantages such as being inexpensive and easy to implement. In addition, the release from the low power consumption mode is released by receiving an incoming call to the multi-function phone in the low power consumption mode, or released by the off-hook operation and is in the normal mode (power supply is resumed and can be used). Since it is a configuration that returns to
Usability is not impaired.

Further, the low power consumption mode continues until the handset of each telephone is lifted or until an incoming call occurs, so that power consumption can be suppressed even in the daytime until someone lifts the handset.

Although the setting of the low power consumption mode of the multi-function telephone is automatically detected from the state of the room lighting in the above-mentioned embodiment, the multi-function installed as a representative extension or a specific extension such as a guard room It is also possible to use a manual setting method by operating the fan cushion key on the telephone.

In this case, the multifunction telephone uses the feature that various functions can be set in the fan cushion key. That is, the command function for shifting to low power consumption is assigned to the desired fan cushion key of the multi-function phone. In this case, the worker in the guard room or the like completes by pressing the existing fan cushion key for shifting to low power consumption, such as a multi-function telephone, after confirming the end of work in a predesignated office or the like.

(Embodiment 3) Next, an example of a system configuration of a remote operation system in which a target extension is set to a low power consumption mode by operating a function key of a multi-function telephone which is an extension telephone from such a specific extension explain.

First, in this system, the power line monitor interface 8 connected to the terminal CPU 209A in the above-mentioned multifunction telephone is replaced with a fan cushion key of the multifunction telephone. However, the fact that the power is down is transmitted to the line circuit 13A-i which is the multifunction telephone interface in the electronic exchange 1A,
Further, the CPU 33 of the line circuit 13A-i is the exchange 1
The data is transmitted to the A control unit 14A via the control data highway 18.

By doing so, when a power down request command is given from the multi-function telephone, if this is an instruction from a preset representative telephone such as a security room, a telephone installed separately (many ) Is generated by the control unit 14A of the exchange 1A so as to generate a power down command.

Specifically, after being notified of power-down by a key operation for power-down command from a representative telephone, the control unit 14A causes the line circuit 13A which is a connection interface for accommodating the telephone of the designated office. -J
The CPU 33 sends a power-down request instruction code.

The designation of which line circuit the power down request instruction code is sent to is made by inputting the extension number or extension group number of the target at the time of the key operation, or by a specific number in advance. Is assigned to each room, and the line circuit of the extension of the room is set in advance so that all the extensions of the room are set to the low power consumption mode by inputting the number at the time of the key operation. The optimum method may be adopted according to the needs of the user of this system, such as sending according to this setting.

The CPU 33 of the line circuit 13A-j which has received the power down request instruction code is the multifunction telephone 2A.
-Send the instruction code to j or the like. Upon receiving this, the terminal CPU 209A of the multi-function telephone 2A-j controls the relay control circuit 215, and the relay control circuit 215 opens the contact of the relay 214 to cut off the line L, and cuts off the power supply from the exchange side to turn on the power. Try to shift to down mode.

As described above, it is possible to suppress the power consumption of the extension multi-function telephone in the unused state by using the button depression (function key depression) of the multi-function telephone. It is possible to significantly reduce the total power consumption of the electronic exchange system at that time and reduce operating expenses (electricity charges). In addition, in order to suppress unnecessary operation of electronic components that are constituent elements, suppression of heat generation,
It is possible to suppress deterioration and the like. Furthermore, even if the multi-function telephone is in the low power consumption mode and the power supply is cut off, the power supply is started when an off-hook operation or an incoming call occurs, so that it is easy to handle. Is.

Here, in the first embodiment, in order to save energy in the standby state, the telephone is provided with a cut-off switch that is excited by power supply from the exchange and maintains the power supply path. When a device to monitor is installed in the power line and it detects that the room is not used, the exchange cuts off the power supply to the telephone, opens the cutoff switch to cut off the power supply path of the telephone, and stops the power supply, The restart of the power supply is linked to the off-hook operation of the telephone or the occurrence of an incoming call to the telephone of the exchange. The unattended state is known by checking whether the room lighting is on or not, and the energy saving mode (low consumption It was designed to shift to the power mode). This focuses on the fact that the rooms in use at offices are lit even during the day, and the lights are turned off in unattended rooms, so whether or not the room lights are on. Since the unattended state is discriminated by the above and the mode is shifted to the energy saving mode, the telephone in the room which is not used can be set to the energy saving mode even during the daytime.

In the case of the first and second embodiments, the telephone in the room which is not used even in the daytime can be put into the low power consumption mode. However, the power line (AC power source, that is, indoor power source wiring) is used. Since it is a configuration that interlocks with the above, it is necessary to provide a voltage detection means for the electric power line (wiring for the illuminating light) in the telephone, and also to connect the electric power line and the voltage detection means to each other. In addition, it is necessary to tamper with the wiring of the indoor power line, which is troublesome when the telephone is relocated. It is of course possible to implement a configuration in which the detection means interlocking with the switch of the illumination lamp is provided in the wiring of the illumination lamp, but even in this case, it is necessary to similarly route the wiring,
Similar problems remain.

Therefore, it is easy to relocate the telephone, and
A third embodiment will be described as a structure without wiring. (Embodiment 4) In Embodiment 4, in order to save energy in an unmanned state, the telephone is provided with a cutoff switch for the power feeding path, and an optical sensor is provided to detect the darkness of the surroundings. Is opened to disconnect the power supply path to stop the power supply, and the resumption of the power supply is linked to the off-hook operation of the telephone or the generation of an incoming call to the telephone of the exchange, which will be described in detail below. .

FIG. 7 is a block diagram of a main part configuration showing an embodiment of the system of the present invention. 1A is a main body of an electronic exchange.
13A-i (i = 1, 2, 3, ...) Is a line circuit for connecting a multifunction telephone and is a multifunction telephone interface board inside the exchange. 32 is a power supply circuit for supplying DC power from the exchange 1A to the multifunction telephone 13A-i, and 4 is a line circuit 13A-i which is a multifunction telephone interface.
Is a CPU for controlling the.

2A-j (j = 1, 2, 3, ...) Is a multifunction telephone terminal, 214 is a relay, 215 is a relay control circuit for controlling this relay 214, and 251 is for detecting turning off of the illumination. 22a is a hook switch for detecting an off-hook of the handset, 209B is a terminal CPU for controlling the multi-function telephone 2A-j, and 242 is a relay control circuit 21 of the circuits in the multi-function telephone 2A-j.
5 is a power supply circuit (DC / DC converter) for supplying a DC power supply of a required voltage to circuits other than 5.

As the optical sensor 251, a phototransistor, a Cds cell, a solar cell, or other light-receiving element or power-generating element is used to obtain an output corresponding to the amount of light received. Then, for example, the degree of ambient brightness is known from the output level of the element, and whether the light is off or not is detected depending on whether it is above or below the threshold level at the desired brightness.

Electronic exchange 1A and multifunction telephone 2A-j
Are connected by a communication circuit L which is a two-line extension line. DC power is sent from the power feeding circuit 32 to the communication line L, and the multi-function telephone 2A-j operates using the power feeding circuit 242 inside which converts this power to a predetermined voltage as a power source.

Terminal CPU 20 of multifunction telephone 2A-j
9B monitors the detection output of the optical sensor 251 built in the multi-function telephone 2A-j to monitor that the light has been turned off, and when it detects that the illumination lamp has been turned off, In order to put the multi-function telephone into the low power consumption mode when the state is continued for the predetermined time, the electronic exchange 1A is notified of the shift to the low power consumption mode (power down is performed), and the electronic exchange 1A is notified. In addition, the relay control circuit 215 is given a relay cutoff command to control the relay control circuit 215 so that the relay 214 is turned off.

An optical sensor 251 is provided instead of the power line monitor interface 208, and the terminal CPU
209B has the optical sensor 25 instead of the power-down request generation function by the power line voltage monitor in the case of the first embodiment.
When the turn-off state is monitored by the monitor of the detection output of No. 1 and it is detected that the illumination lamp has been turned off, the electronic exchange 1A is set to put the multi-function telephone in the low power consumption mode when this state continues for a predetermined time. Has a function of notifying to the low power consumption mode (power down) and receiving a power down command from the electronic exchange 1A, generating a relay cutoff command and inputting it to the relay control circuit 215. The configuration and the operation are the same as those of the first embodiment except for the difference.

The operation of this system will be described. FIG. 8 is a flowchart when the multi-function telephone 2A-j shifts to the low power consumption mode. When the illumination of the place where the multi-functional telephone 2A-j is installed is turned off, it is considered that the surroundings are unattended or it is not necessary to use the telephone, so the multi-functional telephone 2A-j is in the low power consumption mode. Shall be moved to.

When the illumination of the installation place of the multifunction telephone 2A-j is turned off, the terminal CPU in the multifunction telephone 2A-j
209B can detect it by the optical sensor 251 built in the multifunctional telephone 2A-j.

When the terminal CPU 209B detects that the illumination lamp has been turned off (step S41 in FIG. 8), the electronic exchange 1A sets the multifunction telephone to the low power consumption mode when this state continues for a predetermined time. To the power saving mode (power down is performed) is notified to the user (step S42 in FIG. 8). This notification information is output to the line L via the contacts of the transmission transformer 243 and the relay 214, and the transmission transformer 3 is provided on the line circuit 13A-i side.
1, the control circuit 14A through the interface circuit 34
Pass to.

Upon receipt of this notification, the control unit 14A recognizes that the extension connected to the multi-function telephone which has issued the notification has powered down and entered the low power consumption mode, and the exchange 1A Is registered in the storage unit 15. This is a registration process for performing an initialization process for the extension when it is confirmed that the multi-function telephone has restarted from the low power consumption mode to the normal state.

On the other hand, the terminal CPU 209B is the exchange 1A.
When the power-down execution notification is issued to, a relay cutoff command is then generated and input to the relay control circuit 215 (step S43 in FIG. 8). When the relay control circuit 215 receives this relay cutoff command in the normal mode (normal state in which direct current is supplied from the power supply circuit 242), the relay control circuit 215 drives and controls the relay 214 to open its relay contact and supply power to the line L. DC power supply circuit for multi-functional telephones 2
The input to 42 is cut off, and control is performed to shift to the low power consumption mode (step S44 in FIG. 8).

As described above, when the interior of the room is turned off, the multifunction telephone installed in the room becomes the low power consumption mode, and only the relay control circuit 215 operates by receiving the power supply, but other constituent elements. Is in a low power consumption state where the power is cut off.

When the multi-function telephone shifts to the low power consumption mode, the communication with the exchange 1A is interrupted. However, in this system, the terminal CPU 209B of the multi-function telephone performs the power-down operation via the line L on the exchange side. To notify
By this notification, the exchange 1A can separately handle the case where the communication line L is simply disconnected and the case where the multi-function telephone shifts to the low power consumption mode.

Upon receiving the notification of power-down execution, the control unit 14A stores (registers) that the multifunction telephone of the extension of the power-down execution destination has entered the low power consumption mode, and When an incoming call occurs, it is possible to control restarting the multifunction telephone of the extension from the low power consumption mode to the normal state, and at the stage when it is confirmed that the multifunction telephone has been restarted. , The extension can be initialized.

In this way, when the lighting in the room is turned off, a cutoff command is given to the relay control circuit 215, and the relay control circuit 215 cuts off the line by opening a switch for cutting off the line of the connection communication line of the multifunction telephone. By doing
Circuit components other than the relay control circuit 215 in the multifunction telephone can be disconnected from the communication line L. When this state (low power consumption mode) is entered, the multifunction telephone disconnects all other circuit elements except the internal relay control circuit 215, and as a result, power consumption can be greatly reduced.

The operation when the multi-function telephone set in the low power consumption mode is restored (restarted) will be described below. The multi-function phone in the low power consumption mode receives an incoming call or raises the handset 21 (off-hook operation).
It can be restarted by

The restarting operation by the off-hook operation is the same as that in the first embodiment, and as described with reference to FIG.
When 1 is raised, the hook mechanism 22 hook switch 22a is closed, and this is detected by the relay control circuit 215.

The relay control circuit 215 is the hook switch 2
When it is confirmed that 2a is closed, the relay 214 is turned on. Then, the power supply to the circuit in the multifunction telephone is restarted by the power feeding circuit (DC / DC converter) 242, and the terminal CPU 209B performs the restart process of the multifunction telephone. After performing the initialization operation, the terminal CPU 209B sends a power-on code to the electronic exchange 1A, whereby the exchange 1A confirms that the multifunction telephone has restarted from the low power consumption mode to the normal state. That is, in the exchange 1A, the control unit 14A receives the power-on code from the multi-function telephone and knows that the multi-function telephone has been restarted, and the connection extension of the multi-function telephone is changed from the low power consumption mode to the normal mode. The return to the state is registered in the storage unit 15, and the registration of the low power consumption mode is deleted. Then, the normal service for the extension can be performed.

Next, the return from the low power consumption mode to the normal state when an incoming call occurs will be described. The operation in this case is also the same as that of the first embodiment and is as shown in FIG. That is, since the multifunctional telephone set in the low power consumption mode and the electronic exchange 1A cannot communicate with each other, the exchange 1A must first restart the multifunctional telephone set.

FIG. 8 is a flow chart when the multi-function telephone set in the low power consumption mode is restored (restarted) by an off-hook operation. The multifunction telephone in the low power consumption mode can be restarted by raising the handset 21. When the handset 21 is lifted, the hook mechanism 22 and the hook switch 22a are closed, and this is detected by the relay control circuit 215.

The relay control circuit 215 is the hook switch 2
When it is confirmed that 2a is closed, the relay 214 is turned on. Then, the power supply to the circuit in the multifunction telephone is restarted by the power feeding circuit (DC / DC converter) 242, and the terminal CPU 209B performs the restart process of the multifunction telephone. After performing the initialization operation, the terminal CPU 209B sends a power-on code to the electronic exchange 1A, whereby the exchange 1A confirms that the multifunction telephone has restarted from the low power consumption mode to the normal state.

That is, in the exchange 1A, the control unit 14A receives the power-on code from the multi-function telephone to know that the multi-function telephone has been restarted, and the connection extension of the multi-function telephone has low power consumption. The fact that the mode has returned to the normal state is registered in the storage unit 15, and the registration of the low power consumption mode is deleted. Then, the normal service for the extension can be performed.

FIG. 4 is a flowchart when an incoming call arrives at the multi-function telephone set in the low power consumption mode. Since the multi-function telephone set in the low power consumption mode and the electronic exchange 1A cannot communicate with each other, the exchange 1A must first restart the multi-function telephone.

The control unit 14A of the exchange 1A learns from the information of the list of extension lines for transition to the low power consumption mode registered in the storage unit 15 that the extension which received the call is in the low power consumption mode, and the extension number of the receiving destination is increased. A command to suspend power supply is sent to the line circuit 13A-i (i = 1, 2, 3, ...) That is the function telephone interface.

Then, in the line circuit 13A-i, the internal CPU 33 controls the power supply circuit 32 by this power supply temporary stop command, temporarily stops the power supply to the multifunction telephone, and supplies the power after a fixed time (for example, 1 second). Process to restart.

Although the relay control circuit 215 of the multi-function telephone monitors the hook switch 22a even in the low power consumption mode, the power feeding circuit 32 in the board of the line circuit 13A-i, which is the multi-function telephone interface, When the power supply of is stopped, the operation also stops. After that, when power supply from the power supply circuit 32 in the line circuit 13A-i is restarted, the relay control circuit 215 is reset, and the relay 214 is turned on as its initial state. Then, the line L is connected to the transmission transformer 243 side, and the DC voltage supplied to the line L from the exchange side is supplied to the power supply circuit 242 in the multi-function telephone to supply power to the circuit in the multi-function telephone by DC. It is restarted by the power feeding circuit 242 configured by the / DC converter.

As a result, the terminal CPU 209B is supplied with power and restarts the multifunction telephone. After performing the initialization operation, the terminal CPU 209B of the multifunctional telephone sends a power-on code to the exchange 1A.
CPU 33 in the circuit board of the line circuit 13A-i, which is the multifunction telephone interface receiving this code.
Starts the call connection process for the terminal CPU 209B in the multifunction telephone.

In this description, the low power consumption mode is registered by the control unit 14A in the exchange 1A, and the control of the exchange 1A to suspend / resume the DC power supply for restarting the multi-function telephone when an incoming call occurs. The description has been made assuming that the CPU 33 of the line circuit 13A-i is caused to perform the command from the section 14A, but the registration of the low power consumption mode is managed in the line circuit 13A-i, and if an incoming call is made to the multifunction telephone. The CPU 33 in the extension connection line circuit 13A-i controls the power supply circuit 32 to temporarily stop the power supply to the multifunction telephone and restart the power supply after a fixed time (for example, 1 second). It can also be configured to perform processing.

This will be described. When an incoming call arrives at the multi-functional telephone set in the low power consumption mode, the electronic exchange 1A cannot communicate because the line L is cut off. Therefore, the exchange 1A first restarts the multi-functional telephone set. There must be. The CPU 33 in the line circuit 13A-i, which is the multifunction telephone interface board, controls the power feeding circuit 33 when an incoming call is made to the multifunction telephone, temporarily stops the feeding to the multifunction telephone, and after a certain time (several seconds). A process for restarting power supply is performed.

The relay control circuit 215 of the multi-function telephone monitors the hook switch 22a even in the low power consumption mode, but when the power feeding from the power feeding circuit 3 of the multi-functional telephone interface board 2 is stopped, the operation is also performed. It will stop. After that, when power supply from the power supply circuit 3 is restarted, the relay control circuit 215 is reset and the contact of the relay 214 is turned on as the initial state of the control circuit 215. As a result, the DC power of the line L is supplied to the power feeding circuit 242.

Then, the supply of the DC power to the various circuit components in the multifunction telephone by the power supply circuit 242 is restarted,
As a result, the terminal CPU 209B performs the restart process of the multifunction telephone. After performing the initialization operation, the terminal CPU 209B sends a power-on code to the exchange 1A.

The CPU in the line circuit which is the multifunction telephone interface in the exchange 1A which receives this code.
33 cancels the registration of the low power consumption mode of the self-connection extension, and then starts the call connection process to the terminal CPU 209B in the multifunction telephone.

As described above, the multi-function telephone is provided with the optical sensor to detect the brightness of the room, and the brightness of the room is used to determine whether it is in a manned state or in an unmanned state. The circuit line for connecting to the telephone is cut off, so that the DC power supply from the exchange to the multifunction telephone is cut off. Therefore, it becomes possible to reduce power consumption by turning off the power supply during holidays such as unmanned holidays and at the end of the night, and it is possible to prevent wasteful operation, thus suppressing heat generation and deterioration. become able to. Further, since the power supply is started when an off-hook operation or an incoming call occurs, it is possible to obtain features such as easy handling. Further, the low power consumption mode continues until the handsets of the individual telephones are picked up or until an incoming call occurs, so that power consumption can be suppressed even in the daytime until someone raises the handset.

[0160]

As described above, according to the present invention,
Since the power supply is cut off by turning off the illumination lamp, the power consumption of the multifunctional telephone can be suppressed when not working, so the total power consumption of the electronic exchange system at night is significantly reduced, and the operating expenses (electricity charges) are reduced. ) Can be reduced, and even when the power supply of the multi-function telephone is cut off, the power supply is started when an off-hook operation or an incoming call occurs, so it is easy to handle. An electronic exchange system having the same can be provided.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of the present invention and is a block diagram for explaining a configuration of an electronic exchange system of the present invention.

FIG. 2 is a diagram for explaining one embodiment of the present invention and is a block diagram for explaining the relationship between the configuration of the multi-function telephone used in the electronic exchange system of the present invention and the line circuit on the exchange side. .

FIG. 3 is a diagram for explaining one embodiment of the present invention and is a block diagram showing a characteristic part of the electronic exchange system of the present invention.

FIG. 4 is a diagram for explaining one embodiment of the present invention and is a flowchart for explaining an operation when the multi-function telephone in the electronic exchange system of the present invention shifts from a normal state to a low power consumption mode. .

FIG. 5 is a diagram for explaining one embodiment of the present invention, which illustrates an operation when the multi-function telephone set in the electronic exchange system of the present invention is restarted from the low power consumption mode to the normal state by an off-hook operation. Flowchart for doing.

FIG. 6 is a diagram for explaining one embodiment of the present invention, for explaining the operation when an incoming call is made to the multi-function telephone set in the low power consumption mode state in the electronic exchange system of the present invention. Flow chart.

FIG. 7 is a diagram for explaining an embodiment of the present invention, and is a block diagram of essential parts of an electronic exchange and a multi-function telephone in an electronic exchange system as another embodiment of the present invention.

8 is a diagram for explaining one embodiment of the present invention, which is a flow chart for explaining the operation of the system of the present invention shown in FIG. 7 when shifting to a low power consumption mode.

FIG. 9 is a diagram for explaining a conventional example and is a block diagram for explaining a configuration example of a conventional electronic exchange system.

FIG. 10 is a diagram for explaining a conventional example, and is an external view of a multi-function telephone housed as an extension telephone in a conventional electronic exchange system.

FIG. 11 is a diagram for explaining a conventional example, which is a block diagram for explaining a relationship between a configuration of a multi-function telephone accommodated as an extension telephone in a conventional electronic exchange system and a line circuit on the exchange side.

[Explanation of symbols]

1A ... Electronic exchange 13A-1 to 13A-n ... Line circuit (interface for extension connection) 2A-1 to 2A-n ... Extension terminal (multifunctional telephone) 3-1 to 3-m ... Station line 4-1 4-m ... Dedicated line or private line 10-1 to 10-m, 12-1 to 12-m ... Trunk circuit 11 ... Speech path switch 13A-1 to 13A-n ... Line circuit (subscriber circuit) 14A ... Control Unit (central control unit CC) 15 ... Storage unit 21 ... Handset 22 ... Hook mechanism 22a ... Hook switch 22 hook switch 23 ... Dial mechanism (dial key) 24 ... Function key 24a ... Cursor key 25 ... Display lamp 26 ... Character display device 31,243 ... Transmission transformer 32,242 ... Power supply circuit 33 ... CPU 200A ... Telephone terminal control unit 206 ... Interface circuit 270 ... Memory 208 ... Power line monitor interface 209A, 209B ... CPU (terminal CPU) 210 ... LED control circuit 211 ... Key switch control circuit 212 ... Voice control circuit 213 ... Handset control circuit 214 ... Relay 215 ... Relay control circuit 241 ... LCD control circuit 251 ... Optical sensor DC-PWS ... Power supply device.

Claims (9)

[Claims] 1. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply electric power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multi-function telephone is provided with an opening / closing means for opening / closing an extension line, and a detecting means for detecting whether or not the light is turned off at a place where the user is installed, and the light-off detection information by the detecting means. An electronic exchange system comprising: an operation control unit that operates according to the above operation to open the opening / closing unit. 2. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply electric power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multi-function telephone is provided with an opening / closing means for opening / closing an extension line, and a detecting means for detecting whether or not the light is turned off at a place where the user is installed, and the light-off detection information by the detecting means. An electronic exchange system comprising: a terminal control unit that operates in accordance with the above-mentioned operation to generate a shutoff command; and an operation control unit that opens the opening / closing unit in response to the shutoff command. 3. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multi-function telephone is provided with an opening / closing means for opening / closing an extension line, and a detecting means for detecting whether or not the light is turned off at a place where the user is installed, and the light-off detection information by the detecting means. Is connected to the extension line without going through the opening / closing means and the terminal control means for generating a shutoff command for opening the opening / closing means Is supplied with power, and the opening and closing means is opened by the cutoff command,
When the power supply to the extension line is interrupted and restored, an operation control unit for closing and operating the opening / closing unit is provided as an initial operation, and when the electronic exchange receives a notification of power down transition, the notification generation extension power down transition is performed. When a call is registered and an incoming call occurs for an extension that is in a power down transition state, the power supply to the extension line of the extension is temporarily stopped, the power supply is restarted, and then a means for performing incoming call control is provided. Electronic exchange system to do. 4. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply electric power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multi-function telephone is provided with an opening / closing means for opening / closing an extension line, and a detecting means for detecting whether or not the light is turned off at a place where the user is installed, and the light-off detection information by the detecting means. Is connected to the extension line without going through the opening / closing means and the terminal control means for generating a shutoff command for opening the opening / closing means Is supplied with power, and the opening and closing means is opened by the cutoff command,
An electronic exchange system comprising an operation control means for closing the opening / closing means by operating a hook mechanism. 5. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply electric power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multi-function telephone is provided with an opening / closing means for opening / closing an extension line, and a detecting means for detecting whether or not the light is turned off at a place where the user is installed, and the light-off detection information by the detecting means. Is connected to the extension line without going through the opening / closing means and the terminal control means for generating a shutoff command for opening the opening / closing means Is supplied with power, and the opening and closing means is opened by the cutoff command,
The electronic exchange is provided with operation control means for closing the opening / closing means by operating the hook mechanism, or for closing / closing the opening / closing means as an initial operation when power supply to the extension line is interrupted and restored. When the notification of power down transition is received, the power down transition of the notification generation extension is registered, and if there is an incoming call to the extension in the power down transition state, the power supply to the extension line of the extension is temporarily stopped and then the power supply is restarted, After that, the electronic exchange system is characterized in that a control means having a control function for executing incoming control is provided and configured. 6. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multi-function telephone is provided with an opening / closing means for opening / closing an extension line, and a detecting means for detecting whether or not the light is turned off at a place where the user is installed, and the light-off detection information by the detecting means. Is connected to the extension line without going through the opening / closing means and the terminal control means for generating a shutoff command for opening the opening / closing means Is supplied with power, and the opening and closing means is opened by the cutoff command,
The electronic exchange is provided with operation control means for closing the opening / closing means by operating the hook mechanism, or for closing / closing the opening / closing means as an initialization operation when power supply to the extension line is interrupted and restored. Receives the notification of power down transition, registers the power down transition of the extension that generated the notification, gives a power down command to another extension that has been determined in advance corresponding to the extension that has undergone power down transition, and power down transition When an incoming call is generated to an extension in a state, power supply to the extension line of the extension is temporarily stopped and then power is restarted, and thereafter, a control means having a control function for performing incoming control is provided and configured. Electronic exchange system. 7. The electronic exchange system according to claim 1, wherein the detection means for detecting the turn-off is an optical sensor. 8. The electronic exchange system according to any one of claims 1 to 6, wherein the detection means for detecting the turn-off is constituted by a voltage detection means for detecting the voltage of the illumination lamp. 9. A multifunction telephone is used as an extension telephone housed in an electronic exchange, and a power supply device is provided in the electronic exchange to supply power required by the multifunction telephone through an extension line for extension connection. In the system described above, the multifunction telephone with a specific extension is provided with an operation button for a power-down command, and the electronic exchange is provided with means for giving a power-down command to the extension by operating the operation button. The multifunctional telephone is provided with an opening / closing means for opening / closing the extension line, and when a power down command is received, a notification of power down transition is generated, this is sent to the extension line, and then a disconnection command for opening the opening / closing means is issued. It is connected to the extension line without receiving the terminal control means that is generated and the opening and closing means and receives power, The closing means and the opening operation, electronic exchange system characterized by configuring the switching means is provided an operation control means for closing operation by operating the hook mechanism.