JPH04240995A - Remote power supply control system - Google Patents

Abstract

PURPOSE:To facilitate power control of a remote communication equipment economically and to reduce the job quantity for power supply control with respect to the power supply control system for controlling power application and interruption for the communication equipment installed apart from a master set. CONSTITUTION:The communication equipment 1 is provided with a timer 2 to which power application interrupt time of a power supply 7 feeding power to the communication equipment 1 is preset, a signal reception section 3 receiving a signal to command interrupt application of the power supply 7 sent from a master set 11, a storage means 4 storing the control procedure of the power supply 7, a control section 5 controlling the power supply 7 in response to the power control procedure stored in the storage means 4, and an auxiliary power supply 6 applying 1st power backup to the timer 2 and the signal reception section 3 at interrupt of the power supply 7 and applying 2nd power backup to a part B requiring power application processing including the control section 5 and the storage section 4 in addition to a part A for the 1st power backup at application of the power supply 7.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply control system for controlling power on and off of communication equipment installed remotely from a main device.

[0002] In recent years, communication equipment is often installed in remote locations and left unattended. Therefore, it is desirable to perform power control such as turning on and off the power of these communication devices in an unattended environment.

Furthermore, from the viewpoint of power saving, it is desirable to turn off the power to communication equipment after the end of regular business hours.

0004

2. Description of the Related Art FIG. 10 is a block diagram of a communication system. Conventionally, in a communication system having the configuration shown in FIG. 10, power supply control has been performed as described below.

[0005] The processor 32 of the main device 31 controls the power supply of the communication device 33 . A control signal for this purpose is sent to the processor 37 of the communication device 33 through the transmitter/receiver 34 of the main device 31, the transmission line 35, and the transmitter/receiver 36 of the communication device 33. The processor 37 retrieves the power control procedure stored in the memory 38 in response to the sent control signal, and turns on and off the power source 39.

To turn off the power in the communication system of FIG. 10, after receiving a power control signal transferred from the main device 31, a program within the communication device 33 sends a power off instruction to the register 40. Then, the power supply control unit 41 is operated according to the data set in the register 40, and the power supply 39
was disconnected. In this case, in order to receive the power control signal from the main device 31, a processor 37 provided in the communication device 33, a memory 38 storing power control procedures, a transmitter/receiver for receiving the signal from the main device Part 36,
It is necessary to back up the register 40, etc. in which power control data is written, using the auxiliary power supply 42 (
(Part a in the figure).

[0007] When the power is turned on, a control signal for turning on the power is transferred from the main device 31. The processor 37 with battery backup interprets this control signal and sets data in the register 40. Then, the power supply control section 41 is operated to turn on the power supply 39.

[0008]

However, the conventional method has the following problems. In order to turn on the power supply 39 according to instructions from the main device 31,
It is necessary to give instructions manually on the main device 31 side. There is not much of a problem when the number of communication devices subject to power control is small, but as the number of communication devices increases, the task of giving instructions to the communication devices subject to power control becomes cumbersome.

Furthermore, most of the configuration of the communication device 33 includes a processor 37 and a memory 38 that are backed up.
, the transmitting/receiving section 36, etc. Therefore, a large amount of power is required for backup, and the power saving effect expected by cutting off the power supply 39 of the communication device 33 is not so great.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to economically control the power supply of remote communication equipment and to reduce the amount of work required to control the power supply.

[0011]

[Means for Solving the Problems] FIG. 1 is a diagram showing the basic configuration of a communication device according to the present invention. Further, FIG. 2 is a diagram showing the principle configuration of claim 2 of the present invention.

The communication device 1 according to the present invention includes a timer 2 in which the on and off times of the power supply 7 that supplies power to the communication device 1 are set in advance, and a power supply transmitted from the main device 10. a signal receiving unit 3 that receives signals instructing to turn on and off the power supply 7; a storage means 4 that stores control procedures for the power supply 7; and a power supply control means that controls the power supply 7 in accordance with the power supply control means stored in the storage means 4. When the power is turned off, the first power backup is performed for the control unit 5, the timer 2, and the signal receiving unit 3, and when the power is turned on, the control unit 5 and the memory are Part 4
It is characterized by having an auxiliary power source 6 that performs second power backup in the parts including the.

[0013] Furthermore, when power is turned on in response to an instruction from the main device 11 in a communication system having the communication device 1 configured as described above, the main device 11 transfers a power-on preliminary signal to the communication device 1 and receives the signal. When the unit 3 receives the power-on preliminary signal, it performs a second power backup, and after the second backup is performed, a power control signal is transferred from the main device 11 to the communication device 1, and the power supply is switched on. After receiving the control signal, the control unit 5 turns on the power supply 5 in accordance with the power supply control signal.

[0014]

[Operation] The communication device 1 connects the main device 11 to the main device 11 via the transmission line 14.
It is connected to the. The power supply control of the communication equipment 1 is performed by the main device 1.
This is done by a control signal transferred from the processor 13 of the communication device 1 through the transmitting/receiving section 12, and also by the power-on/off time set in the timer 2 provided in the communication device 1.

In the present invention, by controlling the power source 7 according to the power on/off times set in the timer 2, it is no longer necessary to manually instruct the main device 11 to control the power source. In addition, by using power supply control based on instructions from the main device 11, it is also possible to turn on and off the power without depending on scheduled operations as needed.

Normally, power backup is performed only on the signal receiving section 3 (portion A in the figure) that receives power control signals from the timer 2 and the main device 11 when the power is turned off, and when the power is turned on, When a preliminary power-on signal is received from the main device 11, a power backup is performed to a portion including the control section 5 and the storage section 4 (portion B in the figure). This makes it possible to suppress power consumption by the auxiliary power supply 6 when the power is turned off, while also allowing the main device 11 to
The power source 7 can be turned on by a power control signal from the power source 7.

[0017]

Embodiment FIG. 3 is a block diagram of a communication system according to an embodiment of the present invention. Further, FIG. 4 is a configuration diagram of the communication device of this embodiment.

In this embodiment, the main device 11 and a plurality of communication devices 1, 1' are connected via transmission lines 14, 14', respectively. Signals transmitted from the main device 11 are transmitted through transmission lines 14, 14'
The signal is received by the driver (DR) 3 of the communication device 1, 1' via the receiver (TR) 21, and sent to the CPU 5 via the receiver (TR) 21. The ROM 4 stores information regarding control of the power supply device, and the CPU 5 controls the power supply based on this information.

The memory (MEM) 22 stores information regarding communication procedures, and the CPU 5 performs communication with the main device 11 in accordance with this information. The timer 2 is set with the time when the power supply device 7 is turned on and off. Also, according to the data input to the control register 23, the power supply device 7
Control of relay a24 connected to is performed. The driver 3, timer 2, and control register 23 are constantly backed up by a battery from an auxiliary power source a4.

FIG. 5 is a flowchart showing power-on control by timer 3 in this embodiment. The timer 2 has power-on/power-off times set in advance. Figure 5S1
When timer 2 reaches the power-on time, fixed data A set in timer 2 is transferred from timer 2 to control register 23 as shown in FIG. 5S2. Next, in S3 of FIG. 5, the fixed data A written in the control register 23 connects the relay a24. As a result, in FIG. 5S4, power is turned on from the power supply device 7,
Power is supplied to the communication device 1 .

FIG. 6 is a flowchart showing power cut-off control by timer 2. In FIG. 6S1, timer 2 reaches a preset power-off time. Then, in S2 of FIG. 6, the CPU 5 transfers the fixed data B to the control register 23. Next, in FIG. 6S3, relay a2 is activated by fixed data B.
4 is disconnected, the power supply device 7 is disconnected, and the power disconnection process is completed.

[0022] The power on/off time set in timer 2 can be changed, or the power on/off time can be set in timer 2.
If it is not set, the process shown in FIG. 7 is performed. First, according to S1 in FIG. 7, it is checked whether the time is set in the timer 2. If the time has been set, Figure 7
In S2, it is checked whether the setting of the power-on time or the power-off time of the power supply device 7 is to be changed. When changing the time, the operator makes an input to the main device 11 in S3 of FIG. If there is an input, the changed time is transmitted to the communication device 1 in S4 of FIG. Communication device 1 receives this signal and starts timer 2 according to S5 in FIG.
Change the set time.

Even if it is determined that the power-on or power-off time is not set in S1 of FIG. 7, the time is input by the operator into the main device 11. Figure 7
If the time is input to the main device 11 in S3, the input time is transferred to the communication device 1 in S4 of FIG. In this case as well, in communication device 1, the
In step 5, time is set in timer 2.

Next, power control based on instructions from the main device 11 will be explained. When performing power control from the main device 11, an operator inputs to the main device 11 the type of power control to be performed with the target communication device 1. When the instruction is input, a power control signal is transmitted from the main device 11 to the target communication device 1.

FIG. 8 is a control flowchart for power-off according to an instruction from the main device 11 according to this embodiment. In this case, in S1 of FIG. 8, the main device 11 gives an instruction to the communication device 1 to temporarily disable the power control by the timer 2. In response to this instruction, the CPU 5 disables the power control by the timer 2 in S2 of FIG. By performing this process, from power supply control by timer 2,
The power supply is switched to control based on instructions from the main device 11.

Next, at S3 in FIG. 8, a power control signal is transferred from the main device 11 to the communication device 1 to instruct the communication device 1 to turn off the power. Then, the CPU 5 recognizes this signal in S4 of FIG. 8, and fixed data B is transferred from the CPU 5 to the control register 23 in S5 of FIG. Next, Figure 8
In S6, relay a24 is disconnected based on fixed data B, and the power disconnection process is completed.

FIG. 9 is a flowchart of power-on processing according to instructions from the main device 11. In FIG. 9 S1, the receiver 3 detects a change in the polarity of the control signal transmitted from the main device 11. The receiver 3 is provided with means for detecting a polarity change therein. After the polarity change is detected, the control register 2 is transferred from the receiver 3 to the control register 2 in FIG. 9S2.
3, fixed data C is transferred. Next, Figure 9S
3, the relay b25 is connected according to the fixed data C, and the auxiliary power supply b4 is connected to the part including the CPU 5 and ROM 4.
'The second battery backup is started. Thereafter, in S4 of FIG. 9, the CPU 5 notifies the main device 11 that the second battery backup has been performed. Then, in S5 of FIG. 9, timer 2 is started. The timer 2 is set with a time corresponding to when the power is turned on according to an instruction from the main device 11.

The polarity change of the control signal from the main device 11 is as follows:
It serves as a signal that foretells that the power will be turned on to the communication device 1 that is to be powered on. The communication device 1 receives this advance notice signal and prepares for transmission of a power-on control signal from the main device 11.

Subsequently, in S6 of FIG. 9, it is checked whether a power-on control signal from the main device 11 has been received. If the power-on control signal is input within a certain period of time, the CPU 5 transmits fixed data A to the control register 23 in S7 of FIG. Then, in S9 of FIG. 9, the fixed data A written in the control register 23 connects the relay a24, and the power supply device 7 is turned on. In parallel, the relay b25 is disconnected by the fixed data A in S8' in FIG. 9, and the second battery backup is canceled in S9' in FIG.

If the power-on control signal is not transmitted from the main device 11, it is checked in S10 of FIG. 9 with reference to the timer 2 whether a predetermined time has elapsed. If the elapsed time has not elapsed yet, it waits until a power-on control signal is received from the main device 11.

If the predetermined time has elapsed in S10 of FIG. 9, it is determined that the power-on signal from the main device 11 will no longer be transmitted, and the fixed data D set in timer 2 is transferred to the control register in S11 of FIG. Transfer to 23.

According to the fixed data D transferred to the control register 23, the relay b25 is disconnected in S12 of FIG. 9, and the auxiliary power supply b4' is disconnected, thereby canceling the second battery backup. In this way, by canceling the second backup after a certain period of time has elapsed, unnecessary power consumption can be avoided and power can be saved more efficiently.

[0033]

As described above, according to the present invention, it is possible to efficiently control the power supply of communication equipment such as an exchange installed remotely from the main device. In particular, by performing power backup in two stages during a power-off state, the power saving effect is greater than in the past.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle configuration of the present invention.

FIG. 2 is a diagram showing the principle configuration of claim 2 of the present invention.

FIG. 3 is a configuration diagram of a communication system in an embodiment of the present invention.

FIG. 4 is a configuration diagram of communication equipment in one embodiment.

FIG. 5 is a flowchart of power-on processing using a timer in one embodiment.

FIG. 6 is a flowchart of power-off processing using a timer in one embodiment.

FIG. 7 is a flowchart of power on/off time setting processing in one embodiment.

FIG. 8 is a flowchart of power-off processing according to an instruction from the main device in one embodiment.

FIG. 9 is a flowchart of power-on processing according to an instruction from the main device in one embodiment.

FIG. 10 is a configuration diagram of a conventional communication system.

[Explanation of symbols]

In the figure, 1 is a communication device, 2 is a timer, 3 is a transmitting/receiving unit, 4 is a storage unit, 5 is a control unit, 6 is an auxiliary power supply, 7 is a power supply,
11 is a main device, and 14 is a transmission line.

Claims (2)

[Claims] Claim 1: A main device (11) and a main device (11);
11) via a transmission line (14), and the main device (
11) In a communication system having a communication device (1) installed remotely, the communication device (1) is connected to a power source (7) that supplies power to the communication device (1). a timer (2) in which a power-on time and a power-off time are set in advance; a signal receiving section (3) that receives a signal transmitted from the main device (11) instructing the power to be turned on and off; a storage means (4) storing control procedures for the power supply (7); and the storage means (4).
a control section (5) that controls the power source (7) according to a power control means stored in the power source (7); and when the power source (7) is turned off, the timer (2) and the signal receiving section (3).
A first power backup is performed on the power source (7
) At the time of power-on, a second power backup is provided to the parts necessary for the power-on processing, including the control unit (5) and the storage part (4), in addition to the parts to which the first power backup is being performed. An auxiliary power supply (6) A remote power supply control system. 2. When power-on control is performed using a power control signal from the main device (11), a power-on preliminary signal is transferred from the main device (11) to the communication device (1), When the signal receiving unit (3) receives the power-on preliminary signal, it performs the second power backup, and after the second backup is performed, it receives the power control signal from the main device (11). is transferred to the communication device (1) and after receiving the power supply control signal, the control unit (5) turns on the power supply (7) according to the power supply control signal. A remote power supply control method in the remote power supply control system according to claim 1.