JP3485012B2 - Low power consumption exchange device and its exchange method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low power consumption switching device and a method of exchanging the power saving device for optimizing the operation of a device accommodating a plurality of subscriber lines during a power failure or a failure of a power generator.

[0002]

2. Description of the Related Art A device accommodating a plurality of subscriber lines is usually driven by electric power from a commercial power source. In the event of a power failure or failure of the generator, an auxiliary power supply composed of a battery or the like is used.

[0003]

By the way, in the above-mentioned conventional apparatus for accommodating a plurality of subscriber lines, when the voltage of the battery drops when driven by the auxiliary power source,
The number of subscriber lines is reduced, the number of subscriber lines that can be called by the operation of the loop cut relay is reduced, and the power supply of the standby system of the duplexer is stopped. This reduces power consumption and prolongs battery discharge.

However, in such a method, since the number of subscriber lines is reduced, there are cases where some subscribers cannot be used and it is difficult to switch to the standby system.

The present invention has been made in view of the above circumstances, and provides a low power consumption switching device and a method for replacing the low power consumption switching device which can avoid a decrease in the number of callable subscribers and a power supply stoppage of a standby system device. It is something that can be provided.

[0006]

A low power consumption switching apparatus according to claim 1 accommodates a plurality of subscriber lines and detects a used / unused state of a telephone connected to the subscriber lines. A subscriber circuit section having: an off-hook detection section for monitoring a signal detected by the subscriber circuit section and controlling the subscriber circuit section; and a control section for controlling communication with the off-hook detection section. A power supply input detection unit that detects supply stop of the main power supply or operation switching by the auxiliary power supply, and the off-hook detection unit further includes a firmware processor unit that controls the subscriber circuit unit and communicates with the control unit. A first oscillating unit that supplies a clock signal to the firmware processor unit, and a clock signal from the first oscillating unit when the power supply input detection unit detects a supply stop or switching. First to change the speed by dividing the number
And a speed changing unit of the main processor unit, a second oscillating unit for giving a clock signal to the main processor unit, and a power supply input detecting unit, when the supply stop or switching is detected, A second speed changing unit that changes the speed by dividing the clock signal from the second oscillating unit into a predetermined number, and when the power supply input detecting unit detects supply stop or switching, an off-hook detecting unit and The control unit is characterized by reducing the processing speed. Further, the first and second speed changing units return the frequency division of the clock signal from the first and second oscillating units to the normal time when the power supply input detecting unit detects the recovery of the power from the main power supply. Can be Further, the main processor unit may control the operations of the first and second speed changing units when the power supply input detecting unit detects the supply stop or the switching. Low power exchange method according to claim 4, pressurized
A process for accommodating a plurality of subscriber lines by an entrance circuit unit and detecting a use / non-use state of a telephone connected to the subscriber line, and an off-hook detection unit for joining
Monitoring of signals detected by the subscriber circuit section, and subscriber circuit
Off-hook detection by the control process
The process of controlling communication with the output unit and the power input detection unit
Ri, and a step of detecting the switching of operation by stopping supply or auxiliary power of the main power supply, further, hook detection unit
Is the subscriber circuit section by the firmware processor section.
And a step of performing communication with the control unit, and a first oscillating unit
The step of applying a clock signal to the firmware processor section, and the first speed changing section
When the supply stop or switching is detected by the force detection unit, a clock signal from the first oscillation unit and a step of changing the speed by dividing the predetermined number, the control unit, the second oscillation
Section provides a clock signal to the main processor section, and the second speed changing section detects power input.
Second, when supply stop or switching is detected by the unit
And a step of changing the speed of the clock signal from the oscillation unit of dividing a predetermined number, by the power supply input detection unit, fed
When a stop or switching is detected, the off-hook detection unit and
The control unit is characterized by reducing the processing speed . Further, the first and second speed changing units are configured to detect the first and second speeds when the power input detecting unit detects recovery of power from the main power source .
The process of returning the frequency division of the clock signal from the oscillator to normal
It can be so with. Also, the main process
The power supply input detector can stop or switch the supply
When detected, a step of controlling the operation by the first and second speed changing units may be included. In the low power consumption exchanging apparatus and the exchanging method thereof according to the present invention, when the power supply input detection unit detects the stop of the main power supply or the switching of the operation by the auxiliary power supply, the processing speed by the off-hook detection unit and the control unit is reduced. And switch to operation with low power consumption.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

(First Embodiment) FIG. 1 is a block diagram showing a first embodiment of a low power consumption exchange apparatus of the present invention.

The low power consumption switching apparatus shown in FIG. 1 comprises a subscriber circuit section 100, a time divisional switch circuit section 200, an off-hook detection section 300, an auxiliary power supply section 400, a control section 500 and a power supply input detection section 600. .

The subscriber circuit section 100 accommodates a subscriber line to which the telephone 700 is connected. Also, the subscriber circuit unit 10
0 has a function of detecting a used / unused state of the connected telephone 700.

The time divisional switch circuit section 200 has a function for exchanging the time slots of the data channels of each subscriber line.

The off-hook detecting section 300 monitors signals detected by the subscriber circuit section 100 and controls the subscriber circuit section 100. The off-hook detecting unit 300 includes a firmware processor unit 310, a speed changing unit 320, and an oscillating unit 330.

The firmware processor unit 310 controls the off-hook detection unit 300, controls the subscriber circuit unit 100, and communicates with the control unit 500. The speed changing unit 320 as the first speed changing unit takes in the clock signal from the oscillating unit 330 and changes the speed of the clock signal to 1/1 to 1 / m by the signal of the power input detection unit 600. The oscillation unit 330 as the first oscillation unit outputs a clock signal to the firmware processor unit 310.

The auxiliary power source section 400 is an emergency power source used when power supply is stopped due to a power failure of the main power source or a failure of a power generator or the like, and is composed of a battery or the like.

The control unit 500 includes an off-hook detection unit 300.
Communication control and control of the entire device including the time divisional switch circuit unit 200 and the like. The control unit 500 includes a main processor unit 510, a speed changing unit 520 and an oscillating unit 530.

The main processor section 510 includes a control section 50.
It is the center of zero.

A speed changing unit 52 as a second speed changing unit.
0 takes in the clock signal from the oscillating unit 530 and changes the speed of the clock signal to 1/1 to 1 / n according to the signal from the power input detecting unit 600. The oscillation unit 530 as the second oscillation unit outputs a clock signal to the main processor unit 510.

The power input detection section 600 detects the stop of the main power supply or the switching of the operation by the auxiliary power from the auxiliary power section 400.

Next, the operation of the low power consumption switching device having such a configuration will be described.

The main power source in the first embodiment is commercial power supplied by a power company or power from a generator. When the voltage drops, the auxiliary power supply unit 400 composed of a battery or the like is used.

At the time of power failure or failure of the generator, the power of the main power supply is not input. In this state, the power input detection unit 6
00 detects a voltage drop. Here, the voltage drop is, for example, when the specified input voltage drops by -10% or more.

When the power input detection section 600 detects a voltage drop, the off-hook detection section 300 outputs a signal indicating the voltage drop.
And output to the control unit 500.

In order to reduce power consumption, the off-hook detecting section 300 divides the speed of the prescribed clock signal from the transmitting section 330 into 1/2 and supplies it to the firmware processor section 310.

Similarly, in the control unit 500, the speed changing unit 520 outputs the specified clock signal from the oscillating unit 530 to 1
The frequency is divided by 2 and given to the main processor unit 510.

The speed of the clock signal is lowered by these operations, and the processing speed of the main processor unit 510, the firmware processor unit 310 and the peripheral circuits is lowered.

When the power from the main power supply is restored, the signal indicating the detection of the voltage drop of the power input detection unit 600 is released. At this time, the signal from the power input detection unit 600 is switched to a signal indicating normality.

As a result, in the off-hook detecting section 300, the speed of the clock signal divided by 1/2 by the speed changing section 320 is changed to 1/1 and given to the firmware processor section 310.

Similarly, in the control unit 500, the speed of the clock signal divided in half by the speed changing unit 520 is changed to 1/1, and the main processor unit 510 is changed.
Given to. As a result, the processing speed becomes the same as that in the normal time.

As described above, in the first embodiment, when the power supply input detection unit 600 detects the stop of the main power supply or the switching of the operation by the auxiliary power supply, the processing speed by the off-hook detection unit 300 and the control unit 500. Lowers
Since the operation is switched to low power consumption, it is possible to avoid a decrease in the number of callable subscribers and a stop of the power supply of the standby system device.

Further, since the processing speed by the off-hook detection section 300 and the control section 500 is reduced and the operation is switched to low power consumption, the capacity of the battery or the like can be reduced.

(Second Embodiment) FIG. 2 is a block diagram showing a second embodiment of the low power consumption exchange apparatus of the present invention.

In the second embodiment, a method for detecting an abnormality of the main power source, an off-hook detecting section 300, and a control section 500.
The method of changing the speed of the clock signal used for is further devised.

That is, at the time of power failure or failure of the generator,
Similarly to the above, the power input detection unit 600 detects the voltage drop. Here, the voltage drop is when the voltage drops by more than -10% from the specified input voltage, as described above.
The signal indicating the voltage drop from the power input detection unit 600 is output only to the control unit 500.

In the control unit 500, the main processor unit 5
A voltage drop is confirmed by 10. The main processor unit 510 controls the speed changing unit 520, and the oscillation unit 530.
The frequency of the clock signal from is divided in half. The divided clock signal is applied to the main processor unit 510. As a result, the control unit 500 reduces the processing speed.

At this time, the main processor unit 510 is
For the speed change unit 320 of the off-hook detection unit 300,
The speed of the clock signal from the oscillating unit 330 is controlled to be divided by two. In the off-hook detection unit 300,
Set the speed of the specified clock signal from the transmitter 330 to 1
The frequency is divided by 2 and given to the firmware processor unit 310. As a result, the off-hook detector 300 reduces the processing speed.

When the power from the main power supply is restored, the signal indicating the detection of the voltage drop of the power input detection unit 600 is released. At this time, the signal from the power input detection unit 600 is switched to a signal indicating normality.

As a result, the main processor section 510 of the control section 500 controls the speed changing section 520 and the oscillating section 5
Change the clock rate from 30 to 1/1.

Further, the main processor section 510 controls the speed changing section 320 of the off-hook detecting section 300 to change the speed of the clock signal from the oscillating section 330 to 1/1.

As a result, the processing speed in the control unit 500 and the off-hook detection unit 300 becomes the normal speed.

As described above, in the second embodiment, the main processor section 510 of the control section 500 controls the changing operation of the speed changing section 320 of the off-hook detecting section 300. It is possible to reduce the control associated with the changing operation of the speed changing unit 320 on the 300 side.

[0041]

As described above, according to the low power consumption exchanging apparatus and the exchanging method thereof according to the present invention, when the power supply input detecting section detects the supply stop of the main power source or the switching of the operation by the auxiliary power source, the off-hook detection is performed. Since the processing speed by the control unit and the control unit is reduced and the operation is switched to low power consumption, it is possible to avoid a decrease in the number of subscribers who can talk and a power supply stop of the standby system device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of a low power consumption exchange device of the present invention.

FIG. 2 is a block diagram showing a second embodiment of the low power consumption exchange device of the present invention.

[Explanation of symbols]

100 subscriber circuit 200 time division switch circuit 300 Off-hook detector 310 Firmware processor section 320,520 Speed change unit 330, 530 oscillator 400 auxiliary power supply 500 control unit 510 Main processor section 600 Power input detector 700 telephone

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) H04M 19/00-19/08 H04Q 3/54-3/56 H04Q 1/20-1/26

Claims (6)

(57) [Claims] 1. Accommodating a plurality of subscriber lines,
A subscriber circuit unit having a function of detecting the use / non-use state of a telephone connected to the subscriber line, monitoring a signal detected by the subscriber circuit unit, and An off-hook detection unit that performs control, a control unit that performs communication control with the off-hook detection unit, and a power input detection unit that detects supply stop of the main power supply or switching of operation by an auxiliary power supply, and further, the off-hook The detection unit includes a firmware processor unit that controls the subscriber circuit unit and communicates with the control unit; a first oscillating unit that provides a clock signal to the firmware processor unit; A first speed changing unit for changing the speed by dividing the clock signal from the first oscillating unit into a predetermined number when supply stop or switching is detected, The control section includes a main processor section, a second oscillating section that provides a clock signal to the main processor section, and the second oscillating section when the power supply input detection section detects the supply stop or switching. A second speed changing unit that changes the speed by dividing a clock signal from the unit into a predetermined number, and when the power supply input detecting unit detects the supply stop or switching, the off-hook detecting unit and A low power consumption exchange device characterized in that the control unit reduces the processing speed. 2. The first and second speed change units, when the power supply input detection unit detects recovery of power from the main power supply, divide the clock signal from the first and second oscillation units. The low power consumption switching device according to claim 1, wherein the circumference is returned to a normal time. 3. The main processor section controls the operation by the first and second speed changing sections when the supply stoppage or switching is detected by the power supply input detecting section. The low power consumption exchange device according to 1. By wherein subscriber circuit unit, accommodates a plurality of subscriber lines, and detecting a use / non-use state of the telephone connected to the subscriber line, the off-hook detection unit, the subscription It monitors the signals detected by the subscriber circuit and controls the subscriber circuit.
And Cormorant step, the control unit includes a step of performing communication control with the off-hook detection unit, the power supply input detection unit, and detecting the switching of operation by stopping supply or auxiliary power of the main power supply, and further, the The off-hook detection unit is configured by the firmware processor unit to have the subscriber circuit unit.
And a communication with the control unit, and the first oscillating unit controls the firmware processor unit.
A step of providing a clock signal to, the first speed changing unit, when <br/> the supply stop or switched by the power supply input detection unit is detected, the first
And a step of changing the speed by dividing the clock signal from the oscillation portion in a predetermined number, the control unit, the second oscillation unit, black <br/> click signal to the main processor unit a step of providing the, by the second speed change unit, when <br/> the supply stop or switched by the power supply input detection unit is detected, the second
And a step of changing the speed by dividing the clock signal from the oscillation portion in a predetermined number, by the power supply input detection unit, the supply stop or switching
Is detected, the off-hook detection unit and the control unit are processed.
A low power consumption exchange method characterized by lowering the processing speed . 5. The first and second speed changing units are the
When the power input detection unit detects recovery of power from the main power supply, the power input detection unit includes a step of returning the frequency division of the clock signal from the first and second oscillation units to a normal time. The low power consumption exchange method according to claim 4. 6. The main processor section is connected to the power source.
The force detection unit has detected the supply stop or switching.
The low power consumption exchange method according to claim 4, further comprising a step of controlling operations by the first and second speed changing units .