JPS59229632A - Power supply control device of information processing system - Google Patents

Abstract

PURPOSE:To save/automate the operation of an information processing system by connecting/disconnecting a power supply to/from I/O devices by a power supply ON/OFF indication from plural information processors. CONSTITUTION:When the power supply is turned on from a terminal 14a, or 14b of the information processor 1a or 1b and a power supply ON control signal is sent to a power supply control device 5 through a power supply interface 13a or 13b, the power supply contorl device 5 sends the power supply ON control signal to the I/O devices 3b, 3c through a power supply control interface 35. In addition, the power supply control device 5 supplied the input power to the I/O device 3d through a power supply feeding line 34. When power supply to the information processors 1a, 1b is turned off, the power supply control device 5 sends a power supply OFF control signal to the I/O devices 3b, 3c through the power supply control interface 35. In addition, the power supply control device 5 stops supplying the input supply through the power supply feeding line 34.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power control device that controls the power of input/output devices in an information processing system.

<Prior Art> FIG. 1 shows a conventional information processing system, in which information processing devices 1a and lb are switched and connected to input/output devices 3a to 3d via input/output switching devices 2a to 2d, respectively. These input/output devices 3a to 3d are connected to a distribution board 4 through input power lines 40, respectively. Further, the information processing devices 1a and 1b have power supply control interfaces 13a and 1, respectively.
It is connected to input/output devices 3a, 3b and 3C through 3b, respectively. Power control interface 13a, 13
b are power-on instruction lines (13a-1, 13b-1
) and a power-off instruction line (13a-2, 13b-2). The information processing devices 1a, lb are connected to the input/output switching devices 2a to 2d through I10 interfaces 12a, 12b, and the information processing devices 1 are connected to the terminals 14a, 14b.
A power on/off operation command is given to a and 1b.

When the information processing device 1a is powered on/off, the information processing device 1
a sends a power-on instruction or a power-off instruction to the input/output device 3a or 3b via the power control interface 13a. According to this power-on instruction and power-off instruction,
Input/output devices 3a, 3 connected to interface 13a
b performs a power-on operation or a power-off operation.

In this way, in the conventional information processing system, the information processing device 1a could only control the power of the input/output devices 3a and 3b connected to the power control interface 13a. Input/output device 3d1, neither of which has a power control interface ■ When the connection configuration for information processing (input/output processing) and the connection configuration for power control are different between the input power device and the information processing device. ,
For example, when the input/output device 3C whose power is controlled by the information processing device 1b via the power control interface 13b is connected to the interface 12a of the information processing device 1a by the input/output switching device 2c, the information processing device The input/output device 3c whose power cannot be controlled via the power control interface 13a when the power of the device 1a is turned on/off
Regarding 1, the power was turned on and off depending on the acquisition.

FIG. 2 shows another connection example of a conventional information processing system, in which a power supply control device 5 connects a power supply control interface 3 to information processing devices 1a, 1b, 1 person output devices 3a, 3b, and 3c.
5, and a power on/off operation command is given to the terminal 15 of the power supply control device 5.

4=Reference 4#In this information processing system, a person (or a timer or a remote controller) instructs the power supply control device 5 to turn on/off the power through the terminal 15, and the power supply control device 5 uses the power supply control interface. 35, the designated information processing device (la
, lb), sends a power-on instruction or a power-off instruction to the input/output device (3a, 3b, 3c).

In such an information processing system, the power supply control device 5 simultaneously turns on/off the power of the information processing device 1a or 1b and simultaneously powers on/off the input/output devices 3a, 3b, 3c connected to the power supply control interface 35. However, it was necessary to turn on/off the power to the input/output device 3d, which does not have the power control interface 35, manually.

(2) Since information processing devices and input/output devices receive power control from the power control device 5, the power control device 5 is always required regardless of the system configuration (simplex or duplex configuration).

■ In a system in which the power-on time of the information processing system is set by controlling a program on the information processing device 1a or 1b, an interface is provided for setting the power-on time from the information processing device 1a or 1b to the power control device 5. In addition, the timers (timers indicating date and real time) must match between the information processing equipment and the power supply control equipment. There were drawbacks such as the need for an interface for timer synchronization, such as a signal line for notifying timer values from the power supply control device 5 to the information processing devices 1a and lb.

<Summary of the Invention> The purpose of the first invention is to provide power supply control for information processing systems capable of issuing power on/off instructions from a plurality of information processing devices to an input/output device having only one set of power supply control interfaces. The goal is to provide equipment.

A second object of the invention is to provide a power control device for an information processing system that can control supply/stop of input power to an input/output device that does not have a power control interface.

In the first and second inventions as well, each information processing device is provided with a register that holds the information when a power-on instruction is received from the information processing device, and these registers are used when a power-off instruction is received from the corresponding information processing device. When the power-on instruction is held, the holding state of the power-on instruction is released. Further, in the first invention, when a power-on instruction is input in a state where all of the registers do not hold a power-on instruction, a power-on control signal is sent to the input/output device via the power control interface, and the above-mentioned When all of the registers are in a state where power-on mutual holding is released, a power-off control signal is sent to the input/output device via the power control interface.

In the second invention, input power is further supplied to an input/output device that does not have a power control interface while at least one of the registers holds a power-off instruction.

FIG. 3 shows an embodiment of the power supply control method for the information processing system of the present invention, and parts corresponding to those in FIGS. 1 and 2 are given the same reference numerals. In this invention, the information processing devices 1a, l
b is connected to the power control device 5 via the power control interfaces 13a, 13b, and the power control device 5 is connected to the input/output devices 3b, 3c, which are not connected to the power control interfaces 13a, 13b, through the power control interface 35. Ru. 34 is an input power line for the input/output device 3d. Power control interface 13a, 13b, 3
5 are power-on control signals (13a-1, 13b-
1, 35-1) and power cut-off control signal (13a-2゜13
b-2, 35-2).

Terminal 14a (or 14) of information processing device 1a (or 1b)
The power is turned on from b), and the power control interface 1
Power-on control signal 13a- via 3a (or 13b)
1 (or 13b-1) is sent to the power supply control device 5, the power supply control device 5 sends the power-on control signal 35-1 to the input/output devices 3b, 3c via the power supply control interface 35.
send to Further, the power supply control device 5 supplies multi-input power to the input/output device 3d through the power supply line 34.

When power is cut off to the information processing devices 1a and 1b, power cut control signals 13a-2 and 13b-2 are sent to the power control device 5 via the power control interfaces 13a and 13b, and the power control device 5 The power supply cutoff control signal 35-2 is sent to the input/output device 3 via the power supply control interface 35.
Send to b, 3c. In addition, the power supply control device 5 is the input/output device 3
The supply of input power from the power supply line 34 to d is stopped.

FIG. 4 shows a specific example of the power supply control device 5. As shown in FIG. The power-on control signals 13a-1, 13b-1 are supplied to an AND circuit 52a, and are also supplied to AND circuits 52b, 52c, respectively, and further includes a register 51a, which holds a power-on/off control signal, such as a flip-flop, It is supplied to each set terminal S of 51b. On the other hand, power-off control signal 1
3a-2 and 13b-2 are registers 51a and 51, respectively.
b, and is supplied to each reset terminal R of the AND circuit 53a.

53b, and further simultaneously supplied to an AND circuit 530. Each Q output of the registers 51&, 51b is supplied as an inverted signal to an AND circuit 52C252b and an AND circuit 53b.

53a and is not further inverted (OR circuit 5
6. AND circuits 52a, 52b, 52
Each output of C is supplied to the OR circuit 54, and the output becomes the power-on control signal 35-1, and the AND circuits 53a, 53
The respective outputs of 53b and 53c are supplied to an OR circuit 55, and the output thereof becomes a power cut-off control signal 35-2. The output of the OR circuit 56 is supplied to a relay circuit 57, which controls connection and disconnection between the input power lines 34 and 40.

The embodiment of the first invention includes registers 51 a and 5 l.
b.

Circuits 52a, 52b, 52c, 53a, 53b.

53c, 54.55, and the embodiment of the second invention is composed of a register 51a, a 51bs circuit 56, and a relay circuit 57.

FIG. 5 is a time chart showing an example of the operation shown in FIG.

A power-on control signal (x
3a-1), the register 51a is set, and at this time, the register 51b is reset, that is, if the power-on control signal 13b-1 from the information processing device 1b is not received, the routes 52b and 54 are set. A power-on control signal 35-1 is output to the input/output devices 3b and 3c via the input/output devices 3b and 3c. Further, when the register 51a is set, the circuit 56
By turning on (blocking) the relay circuit 57, the stain source supply lines 40 and 34 are connected, and input power is supplied to the input/output device 3d.

The power-on control signal 13 is sent from the information processing device 1b at time t2.
When b-1 is sent, register 51b is set. At this time, if the register 51a is already in the set state, the stain source turn-on control signal 13b-1 is suppressed by the circuit 52c, so the input/output devices 3b, 3c which are in the power-on state
It is possible to prevent disturbance by sending the power-on control signal again to the device.

The power cutoff control signal 13 is sent from the information processing device 1b at time t3.
When b-2 is sent, register 51b is reset. At this time, if the register 51a is in the set state, that is, if it has not yet received the power cutoff control signal 13a-2 from the information processing device 1a, the stain source cutoff control signal 13b-2 is suppressed by the circuit 53b, so the input Output device 3b
, 3c, the power cut-off control signal 35-2 is not sent.

When the power-off control signal 13a-2 is sent from the information processing device 1a at a subsequent time point t4, the register 51a is reset. At this time, the register 51b is in a reset state,
That is, the power cutoff control signal 13 from the information processing device 1b
Since it has already received the signal b-2, it sends the power cut-off control signal 35-2 to the input/output devices 3b and 3c via the circuits 53a and 55. Further, the relay circuit "57 is turned off (opened) via the circuit 56, and the power supply lines 40 and 34 are cut off, thereby stopping the supply of input power to the input/output device 3d.

<Effects> As described above, according to the embodiment of the first invention, the plurality of information processing devices 1a, 1b can issue power on/off instructions to the input/output devices 3b, 3c, which have only one set of power control interfaces. can be done.

Further, according to the embodiment of the second invention, for the input/output device 3d that does not have a power control interface, the input/output device can be powered on/off in response to a power on/off instruction from the plurality of information processing devices 1a, lb. Cutting can be done.

In the above embodiment, the input/output device is powered on when a power-on control signal is received from either information processing device, and the input/output device is powered on when a power-off control signal is received from both information processing devices. I decided to disconnect the circuit 52.
By changing the combinations of a to 52c, 53a to 53c, and 54 to 55, the conditions for turning on/off the input/output device can be changed. Furthermore, by adding more registers 51, it is possible to increase the number of information processing devices to three or more. The power supply control device of the present invention is not an independent device, but can be built into other devices such as an information processing device, an input/output switching device, a switching control device that performs switching control of the input/output switching device, etc.

As explained above, according to the present invention, powering on/off of an input/output device having only one set of stain source control interface or an input/output device having no power control interface can be performed by powering on/off from multiple information processing devices. Since this can be done by issuing a disconnection instruction, it is possible to save labor and automate the operation of the information processing system.

[Brief explanation of the drawing]

1 and 2 are block diagrams showing a conventional information processing system, FIG. 3 is a block diagram showing an embodiment of a power supply control device for an information processing system according to the present invention, and FIG. 4 is a block diagram showing a specific example of the power supply control device. FIG. 5 is a circuit diagram showing an example, and FIG. 5 is a time chart showing an example of the operation of the device of FIG. 1 a H1b: Information processing device, 2a to 2d: Input/output switching device, 3a to 3d: Input/output device, 4: Distribution board, 5:
Power control device, 12a, 12b: I10 interface, 13a, 13b, 35: Power control interface, 4
0,34: Input power supply line, 5i a + 51 b
: Register that holds power on/off instructions from the information processing device, 52a to 52c, 53a to 53c: AND
Circuit, 54.55, 56: OR circuit, 57: Relay circuit. Patent Applicant: Nippon Telegraph and Telephone Public Corporation Agent Takashi Kusano 7171 Figure 73 Figure 4

Claims (2)

[Claims] (1) In a power supply control device that is provided with an interface with a plurality of information processing devices and at least one input/output device, it is provided for each of the information processing devices, and when it receives a power-on instruction from the corresponding information processing device, When a power-off instruction is received from the corresponding information processing device, the holding state of the power-on instruction is released. When a power-on instruction is received, a means for transmitting a power-on control signal to the input/output device, and a means for transmitting a power-off control signal to the input/output device when all of the registers have been released from holding the power-on instruction. A power supply control device for an information processing system, comprising means for transmitting. (2) In a power supply control device that is provided with an interface with a plurality of information processing devices and at least one input/output device, the power control device is provided for each of the information processing devices, and is configured to detect when a power-on instruction is received from the corresponding information processing device. There are multiple registers that are held, and when a power-off instruction is received from the corresponding information processing device, the holding state of the power-on instruction is released, and while any one of these registers is in the holding state of the power-on instruction, the above entry is A power supply control device for an information processing system, comprising means for supplying input power to an output device.