JPS6228822A - Power supply control device - Google Patents

Abstract

PURPOSE:To prevent a power supply control device from any influence even if the constitution of a computer system is changed by forming switches individually corresponding to device names in all devices of the computer system. CONSTITUTION:When a POWER-ON command is inputted by using the device name of a device 11 used by the computer system 1, a power supply control program loaded to a memory 42 decodes the command. Then, the power supply control program indexes a corresponding table for the device names and device code values to convert the device name into its individual device code. Power ON is commanded on the basis of the device code value through a serial power supply interface 5. Since a switch value has been previously set up in the switch 11a of the device 11, a power supply for the device 11 can be turned on. In case of the disconnection of the power supply, the power supply for the device having the device name specified by a POWER-OFF command is disconnected by the similar operation to the power ON operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply control device for controlling power on/off of a computer system, and particularly to individual power supply control of individual devices included in the computer system.

[Conventional technology]

As computer systems become larger in scale, it becomes easier to turn on and off the power of individual devices that make up the computer system.
Efficient and labor-saving operation is becoming possible. Conventionally,
A power supply control device that enables this type of individual power supply knows the position of a connector between the power supply control device and each device, and performs control to instruct the connector to turn on or cut off the power.

[Problem that the invention seeks to solve]

Normally, an operator of a computer system uses a method of instructing power-on and power-off instructions using the device name used in the operating system. Therefore, the relationship between each device name and the above-mentioned connector position is provided as a correspondence table.

In the conventional power supply control device described above that is capable of individual power supply control, control is performed based on the physical correspondence between the power supply control device and each device, so the above correspondence table must be recreated each time the configuration of the computer system changes. There is a drawback.

[Means to solve the problem]

The object of the invention is to provide a power supply control device that does not have the above-mentioned drawbacks.

The present invention provides a power supply control device for a computer system consisting of a plurality of devices having a device name uniquely defined among the plurality of computer systems, which is provided in each of the devices and has a device name uniquely defined among the plurality of computer systems. a device code switch for setting a corresponding device code; a serial power supply interface for connecting all of the individual devices; and a correspondence table between the individual device names and the device codes that are uniquely determined among the plurality of computer systems. a storage unit for storing a device name, and when powering on or powering off a specific individual device according to the device name, converting the device name of the specific device into a corresponding device code using a correspondence table in the storage device; The device is characterized in that it includes a power control unit that turns on or turns off the power according to the device code that is set.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. The computer system 1 includes a plurality of devices 11.12. ..., 32
Each computer system is given a device name consisting of a two-letter device type and a two-letter device number, similar to other computer systems.
Also, each device 11. ..., 32 are respectively switches ll
a, . . . , 32a. The power supply control device 4 is
It is a device that controls the power supply of the computer system 1 using a program, and includes a microprocessor 4 that executes the program.
1, a memory 42 that stores programs and reads and writes data necessary for program execution, a floppy disk 44 that stores programs, a floppy disk adapter 43 that controls the floppy disk 44, and a CRT that can display and input data. Keyboard 46 and CRT・
A CRT control unit 45 that controls the keyboard 46 and all the devices 11 of the computer system 1. . . , 32 and an interface adapter 47 for controlling the serial power ink face 5 connected to the microprocessor 41 . Memory 42. Floppy disk adapter 43. CRT control section 45. Bus 48 connecting interface adapter 47
It has

FIG. 2 is a diagram showing the structure of the switches 11a, . . . , 32a in FIG. 1, and each switch is composed of a device type section and a device number section. Each switch has 12
A bit device code value can be set, with the first 4 bits being set in the device type field and the last 8 bits being set in the device number field. 1
The first 4 bits of the 2 bits indicate the device type of the upper 2 characters of the 4-character device name, and the latter 8 bits indicate the value of the lower 2 characters (hexadecimal number) of the device name. Table 1 shows a correspondence table between the top two characters of the device name and coded values.

The device code value of the Table 1 bit is for each device 11. . . , 32 is address information for the serial power supply interface 5 that uniquely defines the address information. Moreover, this switch configuration method is a common configuration method among different computer systems.

Table 2 shows the equipment 11 included in the computer system 1 in Figure 1.
．． ..., 32 switches 11a, . . . , 32a, which are determined based on the switch configuration method shown in FIG. 2 and Table 1.

Table 2 For example, devices 11 and 12 are central processing units with device name CP.
It has the old and CP51, and therefore has the value "000000000001" and the value "000001010001" according to the switch configuration method shown in FIG. 2 and Table 1.

Referring again to FIG. 1, the operation of power supply control will be explained. Although not shown in the figure, when power is turned on to the power control device 4 by a power switch, timer, etc., the power control device 4 is stored in the floppy disk 44, and contains the correspondence table between device names and device code values in Table 1. A program is loaded into memory 42 under the control of floppy disk adapter 43. Hereinafter, the device 11 included in the computer system 1.・・・
. , 32 is controlled by the microprocessor 41 executing a power control program loaded into the memory 42.

Now, the operation when the operator turns on the power of the device W11 will be explained based on the operation flowchart in FIG. POII using
Input the IERON command (step Sl). The power control program loaded in the memo 1J42 decodes the instruction command from the operator under the control of the microprocessor 41 (step S2), and learns that the device with the device name CPOI is to be powered on. The power supply control program uniquely converts the device name CPOI into the device code "0000000" by indexing the correspondence table of device names and device code values in Table 1 included in the program (step S3).
00001'' (step S4), and uses this value to issue a power-on instruction via the interface adapter 47 and serial power supply interface 5 (step S5). On the other hand, the switch lla of the device 11 is configured based on the switch configuration method shown in FIG. switch value “000000000001”
is set, the device 11 is powered on (step S6). In the case of power-off, the PO ROFF command inputted by the operator from the CRT/keyboard 46 causes the device having the specified device name to be powered-off in the same manner as when the power is turned on.

〔Effect of the invention〕

As explained above, the present invention provides power control that does not affect the power control device even if the device configuration of the computer system changes by providing a switch that uniquely corresponds to the device name in every device of the computer system. There are effects that can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 3 is a flowchart for explaining the operation of FIG. 1. 1 ・・・・・・・・・・・・・・・ Computer system 11.12. ..., 32 ...... Apparatus 11 a, 12 a, ..., 32 a ...
・ Switch 4 ・・・・・・・・・・・・・・・ Power control device 41 ・・・・・・・・・・・・・・・
Microprocessor 42 ・・・・・・・・・・・・
・・・ Memory 43 ・・・・・・・・・・・・・・・
- Floppy disk adapter 44...
・・・・・・・・・ Floppy disk 45 ・・
・・・・・・・・・・・・・・・ CRT control section 46 ・
・・・・・・・・・・・・・・・ CRT/Keyboard 4
7 ・・・・・・・・・・・・・・・ Interface adapter 48 ・・・・・・・・・・・・・・・
Bus 5 ・・・・・・・・・・・・ Serial power interface agent Patent attorney Yoshiyuki Iwasa Lucky position 2 characters (hexadecimal 1 father) A upright 2 characters Fu F ° Ishii Naoguchi S1 ko52 koS3 ]S14 koS5 koS6

Claims (1)

[Claims] (1) In a power control device for a computer system consisting of a plurality of devices having device names uniquely determined among the plurality of computer systems, a power control device provided in each of the devices and uniquely corresponding to the device name of each device. a device code switch for setting a device code to be used; a serial power supply interface for connecting all of the individual devices; and a correspondence table between the individual device names and the device codes that are uniquely determined between the plurality of computer systems. a storage unit for storing the information; and a storage unit for converting the device name of the specific device into a corresponding device code using a correspondence table in the storage unit when powering on or powering down the specific individual device according to the device name; A power control device comprising: a power control section that turns on or turns off the power according to a device code.