JPS62131312A - Remote power source control system - Google Patents

Abstract

PURPOSE:To perform the speed up of the start of a system by constituting a system so that the power on of one host processor makes the power on simultaneously in all of the processors controlled by the host processor. CONSTITUTION:When its own processor accepts a power throw in control from the host processor, switches SW0 and SW1 at a switch part 33 are switched to an acceptance possible side (remote side). When power throw in control signals VIN and EIN are inputted to a reception part 30 at such a state, a relay part 32 is driven with the signals, and a relay contact point rl0 is closed, and a power is thrown in to a processor 21. Meanwhile, the VIN and the EIN at the reception part 30 are connected respectively so as to be sent out as a VOUT and an EOUT at a transmission part 31 to send a power source control signal to other processors (low-ordered).

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power supply control method for an information processing system, and in particular to a remote power supply control method for remotely controlling power-on to each device in a system having a plurality of processing devices. Equation % In most cases, information processing systems consist of a number of various types of processing equipment, each with its own power supply unit, to form a single system. When doing so, the power was turned on for each processing device.

[Problem that the invention seeks to solve]

The above-mentioned method of powering on multiple processing devices is a method of turning on power to each processing device individually, which has the disadvantage that the power-on operation is complicated and that it is not possible to speed up system startup.

An object of the present invention is to solve the above-mentioned conventional drawbacks, and to provide a remote power control system that can speed up the system by turning on the power of one upper-level processing device and turning on the power of all subordinate processing devices at the same time. The purpose is to provide

(Means for Solving Problems) A remote power control method according to the present invention determines whether or not a self-processing device accepts remote power control from a higher-level processing device in an information processing system consisting of a plurality of processing devices. It consists of a switch section for switching, a receiving section that receives a remote power control signal, a relay section that is driven by the remote power control signal, and a transmitting section that sends a remote power control signal from the upper processing device to the lower processing device, When accepting remote power control, the switch unit is switched to the enable side, and when the remote power control signal is in the ON state, the relay unit is driven;
This turns on the power to the own processing device, and
It is designed to send remote power control signals to lower-level processing units.

〔Example〕

Next, the present invention will be explained by way of example with reference to the drawings.

FIG. 1 is a block diagram showing the connection state between each device in an information processing system comprising a plurality of processing devices to which the present invention is applied. From the master processing device 10 to the subordinate processing devices 2
0,21. . . 26 through a control line 40 so that a power supply control signal is sequentially sent thereto. Each processing device has a receiving section that receives a power control signal and a transmitting section that sends a power control signal. For example, if the processing device 21 is the own processing device, this own processing device receives the signal sent from the higher-level processing device 20. The receiver receives the power control signal, and sends the power control signal to the lower processing device 22 from its own transmitter.

FIG. 2 is a circuit diagram of a remote power control circuit built in each of the above-mentioned processing devices, which includes a power control signal receiving section 30, a transmitting section 31, a switch section 33 consisting of switches SWo and SWl, and a relay contact rlo. It is configured to include a relay section 32 and a power source 34. When the own processing device 21 accepts power-on control from the host processing device, the switches SWo and SW1 of the switch section 33 are switched to the accepting side, that is, the remote side. In this state, the power-on control signal VI
When N and EIN are input to the receiving section 30, the relay section 32 is driven by this signal. This closes the relay contact rf□, and the switch SW1 is switched to the remote side as described above.
4 is thrown in. On the other hand, in order to send a power control signal to another processing device (lower), the VIN and EIN of the receiving section 30 are connected to the transmitting section 31 so that they are sent out as V and E, respectively.

When the power-on control signal is not accepted, that is, when the switches SWo and SW1 of the switch unit 33 are switched to the negative side, that is, to the local side, the relay unit 32 is not driven.
Since the switch SW1 has already been switched to the local side, the processing device 21 is powered on. Although the processing device 21 has been described, the same applies to other processing devices.

(Effects of the Invention) As explained above, according to the present invention, each location in the system is 1! ! When powering on the equipment and starting up the system, when one processing unit is powered on, the processing units connected to it are automatically powered on, speeding up system startup. There are effects brought about.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the connection state between devices in an information processing system to which the present invention is applied, and FIG. 2 is a circuit diagram of a remote power control circuit built into each processing device in an embodiment of the present invention. . DESCRIPTION OF SYMBOLS 10... Mask processing device, 20-26... Processing device, 30... Receiving part, 31... Transmitting part, 32... Relay part, 33... Switch part, 34... Power supply .

Claims (1)

[Claims] In a remote power control method for an information processing system having multiple processing devices, a switch unit that switches whether or not the own processing device accepts remote power control from a host processing device, and a receiver that receives a remote power control signal. a relay unit that is driven by a remote power control signal, and a transmission unit that sends a remote power control signal from a higher-level processing device to a lower-level processing device, and when accepting remote power control, the switch unit is turned to the By switching to ON, the relay section is driven in the ON state of the remote power control signal, and the power of the own processing device is turned on via the relay section, and the remote power control signal is transmitted from the transmitting section to the lower processing device. A remote power control method characterized by sending out.