JP3487794B2 - Telephone equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device,
In particular, the present invention relates to a telephone device that can secure a call operation during a power failure and reduce power consumption.

[0002]

2. Description of the Related Art As a technique related to a telephone device according to the present invention, for example, there is a power supply device described in Japanese Patent Publication No. 7-73304. FIG. 4 is a block diagram showing an outline of a power supply device described in Japanese Patent Publication No. 7-73304.

The power supply device shown in FIG. 4 has a power failure detecting section 40.
1, power supply unit 402, battery 403, commercial power supply 404,
SW1 to SWn and devices 411 to 41n are provided. The power supply unit 402 includes a power failure detection unit 401 and a battery 40.
3. Connected to the commercial power supply 404. In addition, the power supply unit 4
02 is a device 411 to a device 41 via SW1 to SWn
n is connected. Here, the devices 411 to 41n
Is a device inside the telephone device, such as a memory. Although not shown, the power source of the power failure detection unit 401 and the power source unit 402 is from the commercial power source 404 except when there is a power failure, and the battery 403 when there is a power failure.
Supplied from

The operation will be described below. When no power failure has occurred (hereinafter, referred to as normal time), the power supply unit 402
Turns on SW1 to SWn to supply power to the devices 411 to 41n based on the commercial power supply 404.

When a power failure occurs, a power failure detection unit 401
Detects the power failure and notifies the power supply unit 402 of the information. The power supply unit 402 supplies power to the devices 411 to 41n based on the battery 403. At this time, the device 41
Among the devices 1 to 41n, there may be a device that does not operate at a voltage value equal to or lower than the normal voltage value. Therefore, the power supply unit 402 does not supply power to the device by turning off SW411 to SW41n corresponding to such device.

As described above, the power supply device shown in FIG. 4 does not supply power to the devices 411 to 41n that do not operate at a voltage value or less during normal operation during a power failure, so that the power consumption of the battery 403 during a power failure occurs. Is being reduced. And the backup time at the time of power failure is extended.

[0007]

However, in the above power supply device, depending on the condition, the device 411 to
There is a problem that some of the functions of 41n may be lost, and when the power supply device is used as a telephone device, there is a possibility that the basic operation of the telephone terminal during a call may not be secured. Here, basic operations during a call include, for example, a hooking operation and a disconnecting operation.

Further, since the voltage of the battery 403 is not controlled at the time of power failure, it is necessary to increase the capacity of the battery in order to extend the backup time at the time of power failure, which causes a problem of high cost.

Therefore, the present invention is to solve the above problems, and provides a telephone device that secures a basic operation of a telephone terminal during a call even during a power failure and reduces power consumption. The purpose is to

[0010]

A telephone device according to the present invention is capable of supplying electric power from a commercial power source to a terminal connected to a telephone line and capable of supplying electric power from a battery to a terminal in the event of a power failure. In the case of a power outage, in the case of a power failure, a supply voltage control means for supplying the terminal with electric power of a voltage that guarantees basic operation during a call is provided.
The means is a power supply that can secure the basic operation of the terminal during a call.
The standby voltage, which is the pressure, and the call from the terminal can also be detected.
The voltage for call detection, which is the voltage that
It is configured to supply power to the terminal .

[0011]

[0012] In telephone apparatus, the supply voltage control means includes a timer, the timer measures the period for supplying power in a period and waiting BEARING voltage supplies power at the call detection voltage
You may ask .

[0013] In telephone apparatus, the supply voltage control means detects the call from the terminal, in wait BEARING voltage terminal may be so supplying power.

[0014] In telephone apparatus, the supply voltage control means may determine the length of the period for supplying power in a call detection voltage according to the frequency of the call from the terminal.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a telephone device according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a telephone device according to the present invention.

The telephone device shown in FIG.
1, a power failure detection unit 102, a central control unit 103, a power supply control unit 104, a power supply unit 105, and a battery 106. The central controller 103 is connected to the line interface 101, the power failure detector 102, the power controller 104, and the telephone terminal. The telephone terminal is a terminal device that can be connected to a telephone network, and includes, for example, a commercially available telephone. The telephone device shown in FIG. 1 is applicable to telephone equipment in a subscriber exchange or a WLL system.

The telephone terminal is connected to the telephone line network through the central control unit 103 and the line corresponding unit 101. The telephone line network may be a wired line or a wireless line. The line interface 101 is a connection interface between the telephone device and the telephone line network. The power supply unit 105 includes a battery 106.
And secure the power supply from the commercial power supply to the telephone terminal.
The power supply control unit 104 follows the instruction from the central control unit 103 to supply power to the telephone terminal (commercial power supply, battery 10).
6) is changed and the voltage of the power supply is adjusted. The power failure detection unit 102 detects a power failure in the telephone device and notifies the central control unit 103 of the information.

Although not shown, power is normally supplied from a commercial power source to the line interface 101, the power failure detector 102, the central controller 103 and the power controller 104. In addition, at the time of power failure, power is supplied from the battery 106 to the line corresponding unit 101, the power failure detection unit 102, the central control unit 103, and the power supply control unit 104. Figure 2
3 is a flowchart for explaining the operation of the telephone device shown in FIG. 1.

Next, the operation of the telephone device shown in FIG. 1 will be described with reference to the flowchart shown in FIG.

First, the normal operation will be described. The power supply unit 105 supplies power to the telephone terminal based on the commercial power supply. Hereinafter, the power supply to the telephone terminal is referred to as a terminal power source. At this time, since the telephone terminal is a device that can be connected to the telephone line network, if the voltage of the terminal power supply is, for example, −43 to −53V specified as the use condition of the telephone line network, the condition is satisfied. Satisfactory -48V. Hereinafter, the voltage at this time is referred to as a normal voltage. At this time, the central control unit 10
According to the instruction from 3, the power supply control unit 104 adjusts the voltage of the terminal power supply.

Then, the call information from the telephone terminal is transmitted to the line interface 101 via the central controller 103. The line interface 101 transmits the call information from the telephone terminal to the telephone line network. On the other hand, call information from the telephone line network is transmitted to the telephone terminal via the line corresponding unit 101 and the central control unit 103.

Next, the operation at the time of power failure will be described with reference to the flowchart shown in FIG. Commercial power is cut off due to a power failure. Then, the power failure detection unit 102
The power failure is detected and the information is notified to the central control unit 103. The central control unit 103 determines whether or not a power failure has occurred based on the information (step S201). If the power failure is not detected (NO), the power failure detection is continued. Then, since a power failure has occurred this time, the central control unit 103 detects the power failure. Therefore, the judgment here is YE
It becomes S.

Next, the central control unit 103 instructs the power supply control unit 104 to switch the terminal power supply from the commercial power supply to the battery 106. Then, the power supply control unit 104 changes the terminal power supply from the commercial power supply to the battery 106 (step S202).

Next, the central control unit 103 instructs the power supply control unit 104 to adjust the voltage of the terminal power supply to the power failure voltage. The power supply control unit 104 adjusts the voltage of the terminal power supply to the voltage for power failure (step S203). Then, the telephone terminal is supplied with electric power at the power failure voltage. The power outage voltage is
It is a voltage that enables basic operations during a call during a power failure. Here, the power failure voltage is set to -24 V so that the power consumption is about 50% of the normal power consumption. Basic operations during a call include, for example, hooking operation and disconnecting operation.

Next, the central control unit 103 controls the power failure detection unit 1
Based on the information from 02, it is determined whether the power failure has been restored (step S204). If the power failure has not been restored (NO), wait until the power failure is restored. When the power failure is restored (YES), steps S205 and S206 are executed. And it is assumed that the power outage has been restored this time. Therefore, the judgment here is YES
Becomes

The central control unit 103 instructs the power supply control unit 104 to switch the terminal power supply from the battery 106 to the commercial power supply. Then, the power supply control unit 104 switches the terminal power supply from the battery 106 to the commercial power supply (step S205).

Next, the central control unit 103 instructs the power supply control unit 104 to adjust the voltage of the terminal power supply to the normal voltage. Then, the power supply control unit 104 adjusts the voltage of the terminal power supply to the normal voltage (step S206). Then, the telephone terminal is supplied with power at a normal voltage.

As described above, according to the present embodiment, the voltage of the power supply supplied to the telephone terminal is adjusted to the power failure voltage to supply power to the telephone terminal at the time of power failure. Don't lose some features of. Therefore,
It is possible to secure the basic operation of the telephone terminal during a call even during a power failure.

Next, another embodiment of the telephone device according to the present invention will be described with reference to FIGS. FIG. 3 is a flow chart for explaining the operation of another embodiment according to the present invention. Here, normal operation, step S
The operations of 201, S202, S204, step S205 and step S206 are the same as the operations shown in FIG. Therefore, here, the operation after the power failure will be described.

When a power failure occurs, the power failure detection unit 102
The power failure is detected and the information is notified to the central control unit 103. The central control unit 103 determines whether or not a power failure has occurred based on the information (step S201). Next, step S202 is executed.

The central control unit 103 instructs the power supply control unit 104 to adjust the voltage of the terminal power supply to the standby voltage.
Then, the power supply control unit 104 adjusts the voltage of the terminal power supply to the standby voltage (step S310). Then, power is supplied to the telephone terminal at the standby voltage. here,
The standby voltage is a voltage that can guarantee all operations during a call in the telephone terminal. All actions during a call
Includes hooking and cutting operations. Then, in this example, the standby voltage is, for example, −24 V, which is the same as the power failure voltage in the above-described embodiment.

Next, the central control unit 103 judges whether or not the call detection flag is ON (step S30).
1). If the call detection flag is OFF (NO), the processing from step S204 is executed. This time, it is assumed that the call detection flag is set to ON in advance. Therefore, the determination in step S301 is YES.

Next, the central control unit 103 controls the voltage control unit 1
04 is instructed to adjust the voltage of the terminal power supply to the call detection voltage. The power supply control unit 104 adjusts the voltage of the terminal power supply to the call detection voltage (step S302). Then, power is supplied to the telephone terminal at the call detection voltage. Here, the call detection voltage is a voltage at which a call from the telephone terminal can be detected, and is set to, for example, -30V.
That is, the telephone terminal is supplied with power at a voltage of -30V. Generally, the call detection voltage is required to be higher than the standby voltage.

The central controller 103 determines whether or not the call detection timer has timed out (step S30).
3). The call detection timer is provided in the central control unit 103, and is a timer that determines the time during which the central control unit 103 detects a call from a telephone terminal.

If the time is not out (NO),
The central control unit 103 determines whether or not a call is detected (step S307). That is, it is determined whether or not there is a call from the telephone terminal.

If there is no call detection (NO),
The processing from step S303 is executed.

When a call is detected (YES),
The central control unit 103 instructs the power supply control unit 104 to set the voltage of the terminal power supply to the standby voltage. Then, the power supply control unit 104 changes the voltage of the terminal power supply to the standby voltage (step S308). Then, a telephone call is made at the telephone terminal.

When the call ends, the central control unit 103
The voltage control unit 104 is instructed to adjust the voltage of the terminal power supply to the call detection voltage. Then, the voltage control unit 10
4 adjusts the voltage of the terminal power supply to the call detection voltage (step S309). That is, the terminal power supply voltage is -30
It becomes V. Then, the processing from step S303 is executed.

When the determination in step S303 is YES, the central control unit 103 turns off the call detection flag.
To (step S304). Next, the central control unit 1
03 instructs the power supply control unit 104 to change the voltage of the terminal power supply to the standby voltage. Then, the power supply control unit 104 adjusts the voltage of the terminal power supply to the standby voltage (step S305). Therefore, power is supplied to the telephone terminal at the standby voltage.

Next, the central control unit 103 starts the standby time setting timer (step S306). The standby time setting timer is a timer for setting a period for keeping the supply voltage at the standby voltage. In the process based on the timeout of the standby time setting timer, the call detection flag is turned ON and the call detection timer is started. The standby time setting timer is also started in the process of step S310. The call detection timer setting time is preferably short from the viewpoint of saving power consumption,
The central control unit 103, for example, calculates the calling frequency based on the past calling history from the telephone terminal, and sets the set time of the call detection timer according to the calculation result. That is, when the calling frequency is high, the set time of the call detection timer is set longer.

Then, the central control unit 103 judges whether or not the power failure has been restored, based on the information from the power failure detecting unit 102 (step S204). If the power failure has not been restored (NO), the processing from step S301 is executed. When the power failure is restored (YES), steps S205 and S206 are executed.

As described above, in the present embodiment, by switching the voltage of the power supply supplied to the telephone terminal to the standby voltage and the call detection voltage as appropriate, all the operations during the call can be performed. Calls from terminals can also be detected.
Furthermore, the standby voltage and the call detection voltage are switched according to the frequency of calling, so that the power consumption of the entire telephone device can be reduced. Therefore, the backup time can be extended without increasing the capacity of the battery, and the cost can be reduced.

[0043]

As described above , according to the present invention, in the telephone device capable of supplying the power from the commercial power source to the terminal connected to the telephone line and capable of supplying the power from the battery to the terminal at the time of power failure. In the event of a power failure, the terminal is provided with supply voltage control means for supplying the terminal with electric power of a voltage that guarantees basic operation during a call , and the supply voltage control means is
At the end, the voltage is high enough to ensure the basic operation during a call.
It is a voltage that can detect the reception voltage and the call from the terminal.
To the terminal by alternately switching the call detection voltage
Since electric power is supplied , there is an effect that it is possible to secure the basic operation of the terminal during a call even during a power failure. Also, in the event of a power outage
It is said that it is possible to guarantee the work and detect the call from the terminal.
Produces the effect.

[0044]

The supply voltage control means includes a timer, the timer is a time period and waits BEARING voltage supplies power at the call detection voltage is configured to measure the period for supplying power
If so , the supply voltage control means has an effect that it can supply power to the terminal by switching between the call detection voltage and the standby voltage according to an instruction from the timer.

The supply voltage control means, when detecting a call from the terminal, so supplies power at wait BEARING voltage terminal
If it is configured as described above, even during the period in which power is supplied at the call detection voltage, the power consumption is further reduced by supplying power to the terminal at the standby voltage during a call. There is an effect that can be.

In the case where the supply voltage control means is configured to determine the length of the period for supplying the power with the call detection voltage according to the frequency of calls from the terminal, when the terminal detects a power failure, The power consumption can be optimized according to the frequency of calling.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a telephone device according to the present invention.

2 is a flowchart for explaining the operation of the telephone device shown in FIG.

FIG. 3 is a flowchart for explaining another embodiment of the telephone device shown in FIG.

FIG. 4 is a block diagram showing a configuration of a conventional telephone device.

[Explanation of symbols]

101 line support 102 Power failure detector 103 Central control unit 104 power control unit 105 power control unit 106 battery

Claims (4)

(57) [Claims] 1. A telephone device capable of supplying electric power from a commercial power source to a terminal connected to a telephone line, and capable of supplying electric power from a battery to the terminal in the event of a power failure, in the case of a power failure, a basic operation during a call in the terminal. Is provided with supply voltage control means for supplying electric power of a voltage that guarantees the battery from the battery to the terminal, the supply voltage control means being the basic operation during a call in the terminal.
Calling from the terminal and the standby voltage, which is the voltage that can secure the work
The voltage for detecting the call, which is the voltage that can also detect
The telephone device is characterized in that it is switched alternately to supply power to the terminal . 2. The telephone device according to claim 1 , wherein the supply voltage control means includes a timer, and the timer measures a period for supplying electric power with a call detection voltage and a period for supplying electric power with a standby voltage. 3. A supply voltage control means, wherein supply upon detecting a call from the terminal, the power at wait BEARING voltage terminal
The telephone device according to item 2 . 4. The telephone device according to claim 2 , wherein the supply voltage control means determines the length of a period for supplying electric power with the call detection voltage according to the frequency of calls from the terminal.