JPH0922320A - Computer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a computer system with which much longer operation continuation is enabled by a backup system battery power unit when an abnormality occurs at the ordinally working system power source of the computer system provided with the ordinally working system power source and the backup battery power unit as power sources. SOLUTION: In the computer system 10 composed of a CVCF power unit 3, to which power is supplied from an ordinally working system power source 1 at normal time but power is supplied from a backup system battery power unit 2 when the ordinally working system power source 1 is abnormal, and a computer having plural peripheral equipments 40a, 40b..., this system is provided with a power supply switch manipulator 20b for distributing the power of the CVCF power unit 3 to the computer system 10, power supply switch operate signal outputter 20e and computer system operating mode setter 20f for an operator to previously set the operating mode of the computer system 10 and when the service system power source 1 is abnormal, this is controlled by outputting a power source on/off signal (e) from the power supply switch operating signal output device 20e to the power supply switch manipulator 20b so that the operating mode of the computer system 10 can be switched to the operating mode set in advance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic power supply control of a computer device such as a monitoring / controlling computer or an information processing computer for monitoring / controlling a power plant, a petroleum plant, a steel plant, a water supply / sewerage system, a building and the like. In particular, when an abnormality occurs in the power supply system of the computer device, the power supply of these devices is automatically changed according to the importance of the component devices of the computer device, or the computer device operating mode set by the operator. The present invention relates to a computer device that can be turned on and off according to setting information.

[0002]

2. Description of the Related Art Generally, a computer device such as a monitoring / controlling computer or an information processing computer is a CVCF power supply device which is often used as an uninterruptible power supply device (normally, AC power supplied from a commercial power supply of a regular system is used). In case of abnormality of the power supply of the normal system, the DC power supplied from the backup battery power supply unit is used as the power supply, and the supplied AC or DC power is converted into AC power of constant voltage and constant frequency and output. An uninterruptible power supply) is used as a power source, and power is supplied from the CVCF power supply to a computer device including a computer and a plurality of peripheral devices via a distribution board. The operation of turning on / off the power supply of the computer and its peripheral devices is performed by manually operating the power switch of the distribution board or the power supply unit of each device by the operator of the computer device.

During normal operation, in the computer for monitoring and control, the computer for information processing, etc., all the computer devices including their peripheral devices are in the energized state, and therefore the load condition of the CVCF power supply device is also high. It is operated in a state close to 100% of the power consumption of the computer system.

Under this condition, even when an abnormality occurs in the service power supply supplying power to the CVCF power supply and the power supply is switched from the service power supply to the backup battery power supply side, , The load condition of the CVCF power supply device does not change, so the power consumption of the computer device is 10
The load condition close to 0% will be continued, and therefore, the computer device can only be operated for a limited time determined by the capacity of the backup battery power supply device and its discharge current value.

[0005]

However, it is generally difficult to predict the recovery of an abnormality in the power supply for the service system, and there is no guarantee that the abnormality will be recovered within the limited time. On the other hand, stopping the operation of the entire computer system seriously hinders the operation of the plant to be monitored and controlled or the processing of information, and it is necessary to avoid it as much as possible.

The present invention has been made in view of the above circumstances, and an object thereof is to switch the power supply from the normal power supply to the backup battery power supply side when some abnormality occurs in the normal power supply. In this case, the backup system battery power supply supplies power until the utility system power is restored, so that the monitoring / control computer or the information processing computer can continue to operate automatically for a longer period of time. It is an object of the present invention to provide a computer device capable of shifting to a minimum operating condition of computer devices in terms of operation of the computer device by shutting off the power source of the computer or some peripheral devices constituting the device.

[0007]

In order to achieve the above-mentioned object, the present invention uses a power supply system for a regular system and a battery power supply system for a backup system as power sources, and is supplied with AC power from the regular system power source during normal operation. When the normal system power supply is abnormal, it is switched and DC power is supplied from the backup battery power supply unit, and the supplied AC or DC power is converted into constant voltage / constant frequency AC power and output, and the power supply is also switched. In a computer device having a CVCF power supply device that outputs CVCF power supply device operating state information at the time of operation and a plurality of computers and peripheral devices, the CVC
AC power output from the F power supply device through a plurality of power switches to the plurality of computers and peripheral devices, and the CVCF power supply operation when the power supply to the CVCF power supply is switched A CVCF power supply status input device for inputting status information and outputting CVCF power supply operation status input information, and an operation mode of the computer equipment is set in advance when the working system power supply is abnormal, and the set operation of the computer equipment is set. A computer device operation mode setter that outputs computer device operation mode setting information corresponding to the mode, and the computer device operation mode setting information is input to determine the operation mode of the computer device and the CVCF power supply device operation state input information is input. Computer operating mode depending on the operating mode of the computer determined to be A computer device operation mode determiner that outputs information and a power switch operation signal output device that outputs a power on / off signal to the power switch operator when the computer device operation mode information is input are provided. It is characterized in that the power switch in the power switch operator is controlled by the input of the off signal to switch the operation mode of the computer device to the operation mode corresponding to the operation mode information of the computer device.

According to the above configuration, when some abnormality occurs in the service power supply for supplying power to the CVCF power supply and the power supply is switched to the backup battery power supply side, the CVCF power supply status input device C input from
The power switch operation of the computer device operating mode information determined by the computer device operating mode determiner by the VCF power supply device operating state input information and the computer device operating mode setting information arbitrarily set by the operator by the computer device operating mode setting device. The operation mode of the computer device is as follows: the power switch operation signal output device outputs a power on / off signal to the power switch operator, and the power switch operator is controlled by the power on / off signal. The operator can automatically switch to a computer operating mode that has been set by the operator beforehand, and the computer can continue operating for a longer period of time by supplying power from the backup battery power source until the normal system power is restored. Will be able to.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, reference numeral 1 is a power supply for a normal system which generally supplies AC power using a commercial power supply, and 2 is a backup battery power supply device, which is normally used when an abnormality occurs in the power supply 1 for a normal system. It is a power supply device that supplies DC power by switching from the system power supply 1.

Reference numeral 3 denotes a CVCF power supply device, which converts AC power or DC power supplied from the normal power supply 1 or the backup battery power supply 2 into AC power having a constant voltage and a constant frequency and outputs the uninterrupted power. A rectifier device which is a power supply device and converts AC power supplied from the utility power supply 1 into DC power and outputs the DC power, and DC power output from the rectifier device or DC power supplied from the backup battery power supply device 2 described above. It is configured by an inverter device that receives electric power, converts these input DC power into AC power of a constant voltage and a constant frequency, and outputs the AC power.

4 is a distribution board equipped with a plurality of manual switches,
Distribution of constant voltage and constant frequency AC power input from the CVCF power supply device 3 to a computer, a plurality of peripheral devices, a control device, and the like, which compose a computer device having a self-power-on / off function of the present invention described later. Function as a power supply unit.

A device surrounded by a dotted line and having a reference numeral 10 is a computer device having a self power on / off function of the present invention. For example, it is composed of a self-system computer device mainly composed of the monitoring / controlling computer 20a, another system computer such as an information processing computer denoted by reference numeral 30, and a plurality of peripheral devices denoted by reference numerals 40a, 40b, 40c. To be done. In this case, the plurality of peripheral devices 40a, 40b, 40c ... Are shared by the self-system computer 20a and the other-system computer 30 and are configured as a complex computer device as a whole.

In the self-system computer device 20, as described above,
Mainly a monitoring / controlling computer 20a as a self-system computer, as a plurality of control devices for performing self-power on / off control, a power switch operator 20b, a CVCF power supply state input device 20c, and a computer device operation mode determination Bowl 20
d, a power switch operation signal output device 20e and a computer device operation mode setting device 20f are provided.

The power switch operator 20b supplies the AC power of a constant voltage and a constant frequency distributed by the distribution board 4 via a plurality of built-in power switches, such as electromagnetic switches, to a system other than the own computer device 20. It is an automatic switching power supply unit that supplies the computer 30 and a plurality of peripheral devices 40a, 40b, 40c ....

The CVCF power supply status input device 20c is C
When some abnormality occurs in the service power supply 1 that supplies AC power to the VCF power supply 3 and the power supply is switched from the AC power of the service power supply 1 to the DC power of the backup battery power supply 2, the CVCF The CVCF power supply operating state information a output from the power supply 3 is input to C
The VCF power supply device operating state input information b is output to the computer device operating mode determiner 20d described later.

The computer device operation mode determiner 20d is input with computer device operation mode setting information d which is previously set and output by the operator in the computer device operation mode setting device 20f which will be described later, and the computer corresponding to this operation mode setting information d. The operation mode of the device is determined and the computer device operation mode information c is output.

The power switch operating signal output device 20e receives the computer device operating mode information c output from the computer device operating mode determiner 20d, and outputs a power on / off signal e to the power switch operating device 20b.

The computer device operation mode setting means 20f is
Operation of the computer device 10 after the operator of the computer device 10 has switched to the backup system battery power source 2 from the regular system power source 1 by the abnormality of the regular system power source 1 and the power supply to the CVCF power source 3 is switched. The mode is a setting device that can arbitrarily set the mode in advance according to the importance of the constituent devices of the computer device such as the computer and a plurality of peripheral devices, and is set in the computer device operation mode setting device 20f in this way. The computer device operating mode setting information d corresponding to the operating mode of the computer device 10 is output.

Next, the operation of the present invention having the above construction will be described.

During normal operation when the normal system power supply 1 is normal and AC power is being supplied to the CVCF power supply device 3 from the normal system power supply 1, the own system computer device 20 and the other system computer 30
In addition, all the devices that make up the computer apparatus 10, including the peripheral devices 40a, 40b, 40c, ... Are energized and in operation.

During this normal operation, some abnormality occurs in the service system power supply 1 supplying the AC power to the CVCF power supply device 3, and the power supply to the CVCF power supply device 3 is performed from the service system power supply 1 to the backup system battery. When the power supply device 2 is switched to and the DC power is supplied to the CVCF power supply device 3, the CVCF power supply device operating state information a output from the CVCF power supply device 3 is the CVCF power supply device state input device 20.
c.

The CVCF power supply status input device 20c outputs the CVCF power supply operation status input information b when the operation status information a is input, and this operation status input information b is input to the computer equipment operation mode determiner 20d. To be done.

The computer device operation mode determiner 20d includes
Prior to the operation of the computer device 10, the operation mode of the computer device 10 which is set by the operator in advance by the computer device operation mode setting device 20f is input as the computer device operation mode setting information d, and the computer device corresponding to this operation mode setting information d Ten operating modes have been determined. Therefore, when the CVCF power supply operating state input device 20c outputs the CVCF power supply operating state input information b, the computer operating mode determiner 20d sets the determined operating mode of the computer 10 to the computer operating mode. Information c
And the operation mode information c is input to the power switch operation signal output device 20e.

The power switch operation signal output device 20e outputs a power on / off signal e when the computer device operation mode information c is input, and the power on / off signal e is input to the power switch operation device 20b.

When the power-on / off signal e is input, the power switch operator 20b controls a plurality of built-in electromagnetic switches according to the computer device operation mode information c, and a plurality of peripheral devices 40b, 40c. Turn off some of the power inside
Alternatively, the self-system computer 20a of the complex-system computer device 10 is left and the power of the other-system computer 30 is shut off to shift to the minimum computer equipment operating state necessary for computer device operation.

After that, when the recovery of the utility system power supply 1 is predicted, or in consideration of the estimated operation continuation time of the computer device 10 by the backup battery power supply device 2, etc., the operator selects the computer device operation mode setter 20f. When the computer apparatus operation mode setting information d newly set by the user is output to the computer apparatus operation mode determiner 20d,
The newly set computer device operation mode information c is output to the power switch operation signal output device 20e, and the power on / off signal e output from the power switch operation signal output device 20e is input to the power switch operation device 20b. It is also possible to shift to a new arbitrary operating state of computer equipment by.

Under the operating conditions of the computer equipment as described above, the failure of the normal power supply 1 of the CVCF power supply 3 is restored and the normal condition is restored, and the power supply to the CVCF power supply 3 is
When the DC power of the backup battery power supply 2 is switched to the AC power of the regular power supply 1, the CVCF power supply 3, the CVCF power supply status input device 20c, and the computer device operation mode determiner 2 in the self-system computer device 20.
0d and the power switch operation signal output device 20e, the power switch on / off signal e is input to the power switch operator 20b, the electromagnetic switch that has been opened is closed, and the power supply is cut off. And peripheral devices 40b, 4
0c ... is supplied with power to restore the computer device 10 having the self-power-on / off function to the initial operating state.

The computer device 10 in the above embodiment is composed of the own computer 20a, the other computer 30, and a plurality of peripheral devices 40a, 40b, 40c ... Which are shared by both computers 20a, 30. However, it is needless to say that the present invention can be applied to a single-system computer device that does not have the other-system computer 30.

Further, in the above-mentioned embodiment, in order to facilitate understanding, as a plurality of control devices for controlling the power switch operating device 20b, a CVCF power supply status input device 20c, a computer device operation mode determiner are provided. Although 20d, the power switch operation signal output device 20e and the computer device operation mode setting device 20f are provided, it is not necessary to provide these control devices in particular, and all control functions of these control devices are performed by the own computer 20a. You can

[0031]

As described above, the present invention has been described in detail. According to the present invention, however, some abnormality occurs in the service power supply that supplies power to the CVCF power supply device and the power is supplied to the backup battery power supply. When switching to the device side, the operating mode of the computer device is automatically switched to the computer device operating mode which the operator arbitrarily set in advance according to the importance of the constituent devices of the computer device.
By supplying power from the backup system battery power supply side until the restoration of the normal system power supply, by appropriately selecting the operation of the information processing computer which is another system computer and a plurality of peripheral devices, etc., There is an advantage that it is possible to obtain a computer device having a self power on / off function that can be continuously operated for a longer time.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Power supply for normal system 2 Battery power supply for backup system 3 CVCF power supply device 4 Distribution board 10 Computer device with automatic power on / off function 20 Self-system computer device 20a Self-system computer 20b Power switch operator 20c CVCF power supply status input Calculator 20d Calculator device operation mode determiner 20e Power switch operation signal output device 20f Calculator device operation mode setter 30 Other computer 40a, 40b, 40c Peripheral device a CVCF power supply operating state information b CVCF power supply operating state input information c Calculator Device operation mode information d Computer device operation mode setting information e Power on / off signal

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G06F 1/00 341P

Claims (1)

[Claims] 1. A backup system battery power supply is supplied with alternating current power from the normal system power supply during normal operation, using a normal system power supply and a backup system battery power supply as power sources. A CVCF power supply device that is supplied with DC power, converts the supplied AC or DC power into constant voltage / constant frequency AC power and outputs the same, and outputs CVCF power supply operating state information when the power supply is switched; In a computer device having a plurality of computers and peripheral devices, a power switch operator that supplies AC power output from the CVCF power supply device to the plurality of computers and peripheral devices via a plurality of power switches, and the CVCF power supply device. When the power supply to the CVCF power supply device is switched F power supply device operating condition input device for outputting operating condition input information, and a computer device which is preset with an operation mode of the computer device when the normal system power supply is abnormal and which corresponds to the set operation mode of the computer device It is determined that a computer device operating mode setter that outputs operating mode setting information, the computer device operating mode setting information is input to determine the operating mode of the computer device, and the CVCF power supply operating state input information is input. And a computer device operating mode determiner for outputting computer device operating mode information according to the operating mode of the computer device, and a computer device operating mode information, a power on / off signal is output to the power switch operator. A power switch operation signal output device is provided, and the power switch is activated by inputting the power on / off signal. Computer machine, characterized in that the operating mode of said computer system controls the power switch in the work unit and to switch the operation mode to comply with the computer device operating mode information.