JPH07272162A - Monitor for power source of equipment - Google Patents

Abstract

PURPOSE:To allow an operator to execute the distribution control of a computer for monitoring a plant on a picture by supplying a power source for the com puter for monitoring the plant from CVCF (a constant-voltage and low-frequency feed device) through the monitor device. CONSTITUTION:This monitor consists of an application schedule data base 41 storing equipment number information provided in correspondence to each kind of equipments provided in the plant, a power source switch operation means 4m adjusting the feeding AC power source from CVCF 2 to each kind of the equipments, CRT input/output device 4d outputs and displays the state of the power source switch operation means 4m and an equipment number information read from the application schedule data base 41 on the picture and outputs a signal corresponding to an optionally turning on/out command in correspondence to equipment number information selected on the picture, and an operation command setting means 4g outputting a signal controlling the power source switch operation means 4m by converting the signal to the signal of on and off in correspondence to the optionally turning on/off command outputted from the CRT input/output device 4d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a plant monitoring computer for monitoring and controlling buildings, water and sewage systems, power plants, steel plants, oil plants and the like.

[0002]

2. Description of the Related Art In general, a plant monitoring computer is supplied from a constant voltage / constant frequency supply device through a distribution board to each device of the plant monitoring computer from the distribution board, and the power source of the computer and its peripheral equipment is supplied. For the operation, a method of operating with a power switch of a power distribution panel or a power supply unit in each device is adopted.

The prior art will be described below. The power source of the plant monitoring computer is a constant voltage constant frequency supply device (hereinafter, CV
Call it CF. ) Is distributed to each device on the distribution board via the distribution board, the power is managed by the power switch on the distribution board and each device, and some modification work or maintenance has occurred on each device. In this case, the observer went to the place where the distribution board was installed and operated the power switch.

When power is supplied to the peripheral equipment of the plant monitoring computer and once brought into an online state, the power of the peripheral equipment is not shut off unless some modification work or maintenance work occurs, and the peripheral equipment controller Since the device waits in an online state while waiting for a usage request from the device, the device is energized even when the peripheral device is not operating, and thus unnecessary power consumption is forced.

Thermostats for monitoring the temperature inside the housing are installed in the housing of the recording medium, the housing of the peripheral equipment device controller, the housing of the input / output processing device, etc., which compose the computer for monitoring the plant. If the temperature inside the computer exceeds the operating temperature of the thermostat when the temperature rises abnormally, the thermostat operates and shuts off the power switch of the power supply unit in each case to stop the power supply and suppress abnormal heat generation. Although an interlock is used to prevent breakdown of the equipment inside the housing, due to the malfunction of the contact used for shutting off the power switch of the thermostat when the temperature rises abnormally and lack of reliability of the operating point temperature of the thermostat. Abnormal heat generation due to continued temperature rise because the power switch of the power supply unit is not shut off normally Failure of Luo equipment may occur.

The computer for plant monitoring is CV during normal operation.
When the power is supplied from the CF, the power supply load status is close to 100% because all the peripheral equipment and each case of the plant monitoring computer are operating, and the CVCF backs up the DC power from the normal power supply due to some abnormality. When the power supply is switched to the power supply, the load condition of the power supply is close to 100%, so the backup time required from the rated discharge rate conversion capacity is inevitably secured only for a short time, and the margin of the DC backup power supply is put under pressure. If the system power supply is delayed in recovery, the DC backup power supply to the CVCF is terminated, so that the power supply for the plant monitoring computer cannot be secured and the operation of the plant monitoring computer is forced to be stopped, and the plant monitoring is hindered. There was a fear that.

[0007]

SUMMARY OF THE INVENTION According to the present invention, power is supplied to a plant monitoring computer from a CVCF through this device, and a peripheral device device of the plant monitoring computer and a peripheral device device of the plant monitoring computer are displayed on an interactive screen of a CRT input / output device. It is an object of the present invention to enable the operator to remotely control the power switch without having to go to a conventional distribution board installation site by enabling distribution management to each device.

According to the present invention, in a computer for monitoring a plant, a peripheral device device controller does not request use, and a peripheral device device that is not operating shuts off the power supply by shutting off the power switch. The purpose of this is to avoid unnecessary power consumption by turning on the power switch and supplying power again when the usage request is notified from.

According to the present invention, in a plant monitoring computer, the apparatus also monitors the abnormal state of each computer case, and supplies power to the target computer case when an abnormal state factor is established. Turn off the power switch on the device,
The purpose is to prevent equipment failure due to abnormal heat generation in each case by stopping power supply to the case of the target computer.

According to the present invention, the CVCF power supply is switched from the normal system to the DC system.
By using the operation schedule of the operation equipment when switching to the backup power supply, it is possible to operate the power supply state of the plant monitoring computer according to the operation schedule in an emergency, and to effectively use the power in an emergency. The purpose is to improve the operating rate of equipment.

[0011]

According to a first aspect of the present invention, there is provided an equipment power supply monitoring apparatus for monitoring equipment power supply of a plant monitoring computer, the equipment number being provided according to various equipments in the plant. An operation schedule database that stores information, an output adjustment unit that adjusts the supply of AC power input from a constant voltage / constant frequency power supply to each device, a state of the output adjustment unit, and device number information read from the operation schedule database The output and display on the screen, and the output display means for outputting a signal according to the arbitrary closing / closing command according to the device number information selected on the screen, and the arbitrary closing / closing command output from the output display means. And an operation control unit that outputs a signal for controlling the output adjusting unit by converting the signal into an on / off signal in accordance with the above.

According to a second aspect of the present invention, in a device power supply monitoring device for monitoring the device power supply of a plant monitoring computer, the supply of AC power input from a constant voltage constant frequency power supply to various devices is adjusted. Output adjusting means, computer information judging means for judging whether the computer information of various equipment in the plant input at a constant cycle is online or offline, and outputting a closing command / shutdown command based on the state of the output adjusting means, and an output Output display means for outputting and displaying the state of the adjusting means on the screen, and displaying the state of the output adjusting means on the output display means, as well as an ON signal and a shutoff command according to the closing instruction output from the computer information judging means. And an operation control unit that outputs a signal for controlling the output adjusting unit.

According to a third aspect of the present invention, in a device power supply monitoring device for monitoring the device power supply of a plant monitoring computer, the supply of AC power input from a constant voltage / constant frequency power supply to various devices is adjusted. When the output adjusting means, the output display means for outputting and displaying the state of the output adjusting means on the screen, the temperature information inputting means for inputting the detected temperatures of various devices as the temperature information, and the temperature information deviating from the set value Is an abnormality determination means for outputting abnormality determination information, an alarm output means for outputting alarm information created on the basis of the abnormality determination information on the screen of the output display means, and a computer for various equipment in a plant to be read in a constant cycle. Computer information judging means for judging and outputting the output of an off signal in response to a shutoff command for on-controlling the output adjusting means based on the information and the abnormality judging information,
The output display means displays the state of the output adjustment means, and an operation control means for outputting a signal for controlling the output adjustment means based on the signal output from the computer information determination means.

According to the invention as defined in claim 4, in an equipment power supply monitoring device for monitoring equipment power supply of a plant monitoring computer, normally, the supply of alternating current power from the normal system power supply to each equipment is adjusted, and in an emergency. Is an output adjusting unit that adjusts the supply of AC power from the emergency system power supply to each device, an operation status input unit that inputs the operating status of the normal system power supply, and the power supply is supplied from the normal system power supply based on the operating status. Determination means for determining whether the equipment is supplied from an emergency power source, an operation schedule database for storing equipment number information and setting schedules provided for various equipment in the plant, and a determination And an operation schedule that calculates a setting schedule based on the device number information and stores and reads it in the operation schedule database according to importance. Output calculation means, output adjustment means status, equipment number information, and output schedule display means for displaying the setting schedule on the screen, and when the judgment means judges that the output is from the emergency power supply, an alarm is issued. An alarm output means for outputting information on the screen of the output display means and an operation control means for outputting a signal for controlling the output adjusting means based on a set schedule are provided.

[0015]

In the equipment power supply monitoring apparatus according to the first aspect of the present invention, when the output adjusting means is turned on and off from the screen of the output display means, the state of the output adjusting means and the equipment are displayed on the screen. When the number information of the output adjustment means of the device to be operated is selected by displaying the number information, the number information of the output adjustment means retrieved from the operation schedule database is notified to the operation control means, and the number information and the information on the screen are notified. Turn on the output adjustment means of the target number by referring to the closing / closing command.
The off-operation command signal is set and the output adjusting means is turned on / off, so that the output adjusting means can be remotely operated on the screen without going to the place where the distribution board is installed.

In the equipment power supply monitoring device according to [Claim 2] of the present invention, the computer information of various equipment of the plant monitoring computer is constantly input in a constant cycle, and the computer information judging means makes an online state of the operating state of the computer information. By determining the off-line, the operation control unit refers to the result and does not perform the process if it is in the online state. If the off-line state is detected, the off operation command signal is set and the output adjusting unit is shut off. .

Further, when the above-mentioned output adjusting means is in the cut-off state and the peripheral equipment controller device is notified of the use request for various equipment by the operator, the computer information of the online request is inputted and the operation control means is used. When the request is detected and the operation control unit notifies the operation control unit of the closing command, the operation control unit sets the ON operation command signal to instantaneously perform the closing operation of the output adjusting unit, thereby hindering the equipment operation. Try not to bring it.

In the equipment power supply monitoring apparatus according to [Claim 3] of the present invention, the temperature of the computer case is input from the plant monitoring computer by the temperature information input means, and the abnormality determination means causes the temperature to deviate from the alarm upper limit value. And the result of judging whether or not
The computer information input means, when the computer case temperature rises abnormally, shuts off the power switch of the power supply unit in the case, for example, by operating a thermostat, and at the same time outputs the temperature signal output by various devices and the computer information of the online status of various devices. By making a determination based on the above, even if the computer information determination unit detects the high case temperature signal, the online state of the computer case is detected, and even if the temperature of each device deviates from the alarm upper limit value, each device The power supply of the device determines that it is in an abnormal state due to the fact that it is energized, notifies the operation control means of the cutoff command, sets the off operation command signal to the output adjustment means of the target various devices, and prompts the cutoff operation. The output adjustment means of various devices is not shut off by
The computer can be protected from the failure of various devices due to abnormal rise.

According to the present invention, an abnormal situation can be promptly transmitted to the operator by notifying the output display means of the abnormal state from the alarm output means. In the device power supply monitoring device according to [Claim 4] of the present invention, an interactive screen for setting the operation schedule is displayed on the output display unit, and the operation schedule calculation unit displays the rated discharge rate conversion capacity of each device on the operation schedule database. , Backup time, total current consumption per unit time, total rated current of absolute operation equipment, remaining available current consumption, rated current of each equipment, maintenance rate, perform calculation and refer to the device number to operate in order of priority. The operation schedule calculation means notifies the output display means of the setting schedule result when the scheduling of the operation device stored in the schedule database and corresponding to the arbitrarily set backup time of the power supply of the emergency system is completed. In addition, the scheduling will be determined by the length of the backup time, and when requesting a time longer than the backup time of the power supply of the emergency system during the operation of all operating equipment, it is necessary to operate the plant monitoring computer. Scheduling will be performed without any hindrance, and important devices such as the central processing unit and magnetic disk unit will be treated as absolute operation devices, and will automatically be treated as operation settings in the schedule, and other devices will be treated as important. Scheduled from the highest.

In the arbitrary setting mode, the operating device number is stored in the schedule database by arbitrarily selecting and setting the operating device on the interactive screen, and the unit is calculated from the rated current of the operating device selected after the selection is completed. Calculate the total current consumption per unit time, calculate the backup time of the power supply of the emergency system from the total current consumption per unit time and the rated discharge rate conversion capacity, notify the output display means of the calculation result, and schedule all The backup time of the power supply for the emergency system will be extended when the operating equipment is less than the operating time. From the above, the abnormality determination unit detects that the set schedule once stored in the operation schedule database has switched from the power supply for the normal system to the backup power supply for the emergency system, and the result of the determination is stored in the operation schedule calculation unit. When notified, the operation schedule calculation means calls the set schedule from the operation schedule database, and the operation control means controls the output adjustment means according to the schedule information.

[0021]

EXAMPLES Examples according to the present invention will be described below. FIG. 1 is a diagram showing a configuration of a first exemplary embodiment of the present invention. The device power supply monitoring device of the present embodiment calls the operation schedule database information p from the operation schedule database 4l having the device number information on the dialogue screen of the CRT input / output device 4d, and the central processing unit that constitutes the plant monitoring computer 1. 1a, peripheral device controller device 1b, peripheral device device 1c, device number and operation command setting means 4g
The power switch operation information j having the operation status of the power switch notified from is displayed, and the device number for performing the power switch on / off operation is selected with reference to the information.
By requesting the ON / OFF setting depending on whether the power switch is operated or not, the CRT input / output device 4d notifies the operation command setting means 4g of an arbitrary on / off command j, and the operation command setting means 4g arbitrarily. Operation command signal m for either on or off by receiving the closing / closing command j
Set. Next, the operation command setting means 4g notifies the operation command output means 4h of the operation command signal m, and the operation command output means 4h outputs the contact output signal n according to the state of the operation command signal m.
And the contact output signal n is converted to power switch operating means 4m
Then, the power switch operating means 4m turns on / off the power switch 4n according to the set output signal n, so that the AC power input b from the CVCF 2 is input to the AC power input / output unit 4a for power distribution. The supply / stop of the AD power output c is performed from the AC power input / output unit 4a to the plant monitoring computer 1.

For example, if there are three printers in the peripheral device 1c of the plant monitoring computer 1 and one of the printers has the device number "1", the CRT I / O device 4d displays an interactive screen. When the device number "1" is selected and the power switch 4n is requested to be set to "ON", the power switch 4n is turned on, and when the power switch 4n is set to "OFF", the power is turned off and the CRT input / output is performed. From the device 4d, the power switch 4n that manages the power of each device of the plant monitoring computer 1 can be arbitrarily operated.

FIG. 2 is a diagram showing the configuration of the second embodiment of the present invention, and FIG. 3 is a flow chart for judging the automatic power on / off processing of the power switch. This embodiment will be described with reference to FIGS. 2 and 3.

The computer information judging means 4k refers to the power switch operation information q notified from the operation command setting means 4g, judges whether the operation state of the power switch 4n is an arbitrary setting request from the operator, and if it is an arbitrary setting request. When the processing is terminated and the setting request is not made, the process proceeds to the next processing. Next, referring to the power switch operation information q, it is determined whether the operation state of the power switch 4n is the cutoff state. If so, move to the next process. Then, the computer information judging means 4k uses the central processing unit 1a scanned by the computer information input means 4j, the peripheral device controller device 1b, and the peripheral device device 1c to monitor the plant monitoring computer 1 to the peripheral device device 1c online / offline. The peripheral device 1 is referred by referring to the computer information r having state information.
It is determined whether or not c is online. If it is online, the process is terminated. If it is not online, that is, if the peripheral device 1c is not operating, the process proceeds to the next process. Next, the computer information judging means 4k refers to the computer information r having the online / offline state information, judges whether there is an online request from the peripheral device controller 1b to the peripheral device 1c, and if there is no online request, finally In addition, the peripheral device 1c is determined to be in the standby state even though the AC power output c is supplied. Therefore, the computer information judging means 4k notifies the operation command setting means 4g of the off command of the automatic closing / interrupting command o, and the operation command setting means 4g receives the off command of the automatic closing / interrupting command o to turn off the operation command. Set signal m. Next, the operation command setting means 4g notifies the operation command output means 4h of the operation command signal m of OFF, and the operation command output means 4h causes the operation command signal m to be output.
By converting the contact output signal n into the contact output signal n and notifying the power switch operating means 4m according to the OFF command of No. 1, the power switch operating means 4m performs the shutoff operation of the power switch 4n according to the contact output signal n. CVCF
The AC power supply input b from 2 is input to the AC power supply input / output unit 4a and the distributed AC power supply output c can be stopped from the AC power supply input / output unit 4a to the peripheral device 1c.

Further, the computer information judging means 4k informs the power switch operation information q from the operation command setting means 4g.
The operation state of the power switch 4n is determined to be an optional setting request from the operator, and if it is an optional setting request, the process is terminated. By referring to q, it is determined whether the operation state of the power switch 4n is the cutoff state, and when it is determined that the operation state is the cutoff state, the computer information determination means 4k refers to the computer information r having the information of the online / offline state, and the peripheral device controller device 1b. If it is determined that there is an online request for the peripheral device 1c, the power switch 4n is finally cut off and the peripheral device 1c is not supplied with the AC power output c. When it is determined that the operation request for the peripheral device 1c has been made, the computer information determination unit 4k issues the automatic on / off command o of the ON command to the operation command setting unit 4g. Notified, the operation command setting section 4g sets the operation command signal m ON by receiving the automatic insertion-opening command o the ON command. Next, the operation command setting means 4g outputs the operation command signal m which is on to the operation command output means 4
Then, the operation command output means 4h converts the contact output signal n into the contact output signal n according to the ON command of the operation command signal m, and notifies the power switch operation means 4m of the contact output signal n. By turning on the power switch 4n according to the output signal n, the CVCF
The AC power input b from 2 is input to the AC power input / output unit 4a and the divided AC power output c can be supplied from the AC power input / output unit 4a to the peripheral device 1c.

Further, the power switch operation information q indicating the operation state of the power switch 4n is sent from the operation command setting means 4g to the CRT.
By notifying the input / output device 4d, the power switch 4n
Can be displayed on the dialogue screen of the CRT input / output device 4d.

FIG. 4 is a diagram showing the configuration of the third embodiment of the present invention, and FIG. 5 is a flow chart of the automatic shutoff of the power switch at the time of monitoring the temperature inside the computer case of the present embodiment. This embodiment will be described with reference to FIGS. 4 and 5. When the computer information input means 4j includes the central processing unit 1a, the peripheral device controller device 1b, and the peripheral device device 1c and the plant monitoring computer 1 causes an abnormal rise in the internal temperature of each casing, the power supply in each casing is increased. When the thermostat that shuts off the switch operates, input the computer information r that has the high case temperature and the normal / abnormal case signal output from each case.
By notifying the computer information r to the computer information judging means 4k, it is judged whether or not the operating state of the constituent enclosure of the plant monitoring computer 1 is normal, and the judgment result is notified to the abnormality judging means 4f as the computer information judgment result h. When it is determined that there is an abnormality, the abnormality determination means 4f notifies the alarm output means 4e of the abnormality determination information f, and the alarm output means 4e notifies the CRT input / output device 4d of the alarm information g. Further, the temperature information input means 4c inputs the housing temperature input e from the plant monitoring computer 1, and the temperature information input means 4c receives the housing temperature information d.
To the abnormality determination means 4f, it is determined whether or not the alarm upper limit value is exceeded, and when the determination result is considered to be abnormal, the abnormality determination information f is notified to the alarm output means 4e, and the alarm output means 4e notifies the CRT input / output device 4d as alarm information g. From FIG. 5, the computer information determining means 4k refers to the computer information r having the normal / abnormal state of the housing from the computer information inputting means 4j, and if the determination result is an abnormal state, the computer information determining result h is the abnormality determining means 4f. When it is determined that the operating state of the housing is normal, the computer information determining unit 4k determines whether the housing temperature high computer information r from the computer information inputting unit 4j is output, and outputs it. If not, the process is terminated, and when the case temperature high is detected, the computer information determination result h is notified to the abnormality determination means 4f, and the process proceeds to the next process. The computer information determination unit 4k refers to the determination result of the abnormality determination information f that determines whether the housing temperature information d notified from the abnormality determination unit 4f deviates from the alarm upper limit value, and the determination result deviates from the alarm upper limit value. If not, the process ends, and when the alarm upper limit deviation is detected, the temperature inside the housing rises abnormally and the thermostat operates, so that the housing high temperature signal is output, When the factors that the power switch of the power supply unit of each case of the plant monitoring computer 1 is not cut off and the system operates in the online state while the power is on, and the case temperature deviates from the alarm upper limit value, the calculator is The information judging means 4k sets an automatic closing / closing command o as an off command, and notifies the operating command setting means 4g of the automatic closing / breaking command o. And the operation command setting means 4
g sets the off operation command signal m, and the operation command setting means 4g outputs the off operation command signal m to the operation command output means 4h.
Then, the operation command output means 4h converts the operation command signal m into an OFF contact output signal n, and notifies the contact output signal n to the power switch operation means 4m, so that the power switch operation means 4m causes the contact output signal n. AC power input from CVCF2 by shutting off the power switch 4n according to
Can be stopped from the AC power input / output unit 4a to the peripheral device 1c by stopping the AC power output c input to the AC power input / output unit 4a and distributed.

FIG. 6 is a diagram showing the configuration of the fourth embodiment of the present invention. In the present embodiment, the CRT input / output device 4d having an interactive screen calls the schedule database information p from the operation schedule database 4l, and the cabinet number of the plant monitoring computer 1, the various device number information of the peripheral device 1c, and the schedule setting. The screen is displayed on the CRT input / output device 4d, and the power source of the CVCF2 is changed from the normal system to DC.
The CRT input / output device 4d notifies the operation schedule calculation means 4i of the operation schedule when switching to the backup power supply device 3, and the CRT input / output device 4d notifies the DC backup power supply device 3 of the regular power supply of the CVCF 2. When the operation is switched, the operation schedule calculation means 4i schedules the device to be operated,
The operation schedule database information p is created, and the operation schedule calculation means 4i temporarily stores the schedule database information p in the operation schedule database 4l. Then, when the CVCF 2 is switched from the normal system operation to the DC backup power supply device 3 due to some trouble, the CVCF operation information a is the CVCF information input means 4
b, the CVCF information input means 4b informs the abnormality determination means 4c of the CVCF operation information a, the operation state of the CVCF 2 is determined, and the abnormality determination means 4f also performs CVC.
F2 determines whether the system is a normal system operation or a DC backup power source operation. When the determination result is the normal system operation, no processing is performed. When the determination result is the DC backup power source operation, the abnormality determining means. 4f notifies the abnormality output information 4e of the abnormality determination information f, and as the alarm information g, the CRT input / output device 4d.
To display. After the above-mentioned alarm processing, the operation schedule calculation means 4i sends the CVCF operation information a from the abnormality determination means 4f.
The abnormality determination information f of the determination result of is referred to, and the determination result is DC
In the case of the backup power supply operation, the operation schedule calculation unit 4i calls the schedule database information p having the already-scheduled operation schedule from the operation schedule database 4l, and the operation schedule calculation unit 4i causes the operation command setting unit 4g to operate the operation schedule. As described above, the schedule operation command 1 is notified, the operation command setting means 4g sets the operation command setting signal m according to the schedule operation command 1, and the operation command setting means 4g notifies the operation command signal m to the operation command output means 4h. The operation command output means 4h converts the operation command signal m into a contact output signal n, and notifies the contact switch output signal n to the power switch operation means 4m so that the power switch operation means 4m operates in accordance with the contact output signal n. Perform closing / closing operation AC power input b from CVCF2 can perform supply and stop of the AC power output c which is to power distribution input to the AC power input unit 4a from the AC power input-output unit 4a to the plant supervisory computer 1.

Next, the operation schedule setting process in the operation schedule calculation means 4i and the operation schedule database 4l will be described with reference to the flow chart of the operation schedule setting process of FIG. 7 and the DC backup power capacity calculation diagram of FIG. The basic concept of the operation schedule setting process of FIG. 7 will be described with reference to FIG. Assuming that the rated discharge rate conversion capacity (Ah): C, discharge time (h): T, discharge current (A): I, and maintenance rate: L, C = 1 / L · {T ₁ I ₁ from the graph of FIG. _{+ T 2 (I 2 -I 1} ) + T 3
(I ₃ −I ₂ ) ...}, and the total current consumption per unit time: I _i is I _i = I ₁ = (I ₂ −I ₁ ) = (I ₃ −I ₂ ), T =
If T ₁ + T ₂ + T ₃ , then C = 1 / L · Ii · T, Ii = C / T, T = L · C / I
t is required. Then, the operation schedule setting process in the operation schedule calculation means 4i and the operation schedule database 4l will be described with reference to FIG. First, the operation schedule calculation means 4i refers to the schedule setting information k of the operation schedule mode selection notified from the CRT input / output device 4d, determines whether it is a schedule arbitrary setting request, and if it is not the schedule arbitrary setting, next schedule automatic setting request. If it is not the schedule automatic setting request, the schedule setting information k from the CRT input / output device 4d is referred to again, and if it is the schedule automatic setting request, the process proceeds to the schedule automatic setting process. First, from the interactive screen of the CRT input / output device 4d, the D of the CVCF2 is displayed.
When the operator arbitrarily sets a desired backup time: Tb when backing up the C power supply, the CRT input / output device 4d notifies the operation schedule calculation means 4i of the backup time: Tb as the schedule setting information k, and the operation schedule calculation means 4i refers to the notified backup time: Tb, starts setting the operation schedule, and sets the total current consumption per unit time: It to It = L.
・ Total current consumption per unit time calculated by C / Tb: I
It is judged whether t is the total rated current of the absolute operation equipment: IL or more. If the judgment result is below, the total current consumption per unit time: I
t is less than or equal to the total rated current of the absolute operation equipment: IL, and the backup time: Tb is set so long that the absolute operation equipment cannot operate, and the backup time: Tb is reset. Must be done and the process ends. However, if the total current consumption per unit time: It is greater than or equal to the total rated current of the absolute operation equipment: IL, the remaining possible current consumption: Ix ← It-IL is calculated,
The operation schedule calculation means 4i uses the operation schedule database 4l to calculate the rated current of each device having high operation importance:
Called In, calculated current data: Im ← Im + In, and calculated the total of rated current: In of each device. It is determined whether the current data: Im does not deviate from the remaining possible current consumption: Ix. If it does not deviate, the operating current number of each device: In is stored in the operation schedule database 4l as an operating device, and the operating device number: n.
Is counted, and the rated current: In of each device with high operation importance is called again from the operation schedule database 4l, and this time data: Im can remain and the current consumption: Operation schedule of the operation device number that is treated until it deviates from Ix The storage process in the database 4l is repeated, and this time data: Im can remain. Current consumption: Operation schedule database 4 of the operation device number that is treated as operation after deviating from Ix.
When the storage process to l is completed, the operating device number other than the operating device: n is stored in the operating schedule database as a stopped device, the schedule setting contents are notified to the CRT input / output device 4d as schedule information p, and the setting process is performed. finish.

Next, the schedule setting process in the schedule arbitrary setting request will be described. First, the operation schedule calculation unit 4i refers to the schedule setting information k of the operation device number: n requested by the CRT input / output device 4d, and the operation schedule calculation unit 4i treats the operation device number: n as an operation schedule database. 4 l, and the rated current of each device of the operation device number: n requested to be selected from the operation schedule database 4 l:
In is called as the operation schedule database information p, and the rated current: In of each called device is added to the current data: Im to obtain the total current consumption as the current data Im ←
Im + In is calculated, and then the CRT input / output device 4d refers to the schedule setting information k for selecting the operation device,
If it is not completed, the schedule setting information k of the operation device number: n requested by the CRT input / output device 4d is referred to again, and the operation schedule calculation means 4i indicates the operation device number: n.
Is stored in the operation schedule database 4l as an operation, and the rated current: In of each device of the operation device number: n requested to be selected from the operation schedule database 4l is called as the operation schedule database information p.
Rated current of each device called: In this time data: Im
And the total current consumption is the current data: Im ← Im +
When the process of calculating In is performed and the operation device selection is completed,
Total current consumption per unit time: It ← Im + IL is calculated, backup time: Tb is calculated by Tb ← L · C / It, backup time: Tb is stored in the schedule database 4l The number: n is stored in the operation schedule database as a device to be treated as a stop, the operation schedule setting contents stored in the operation schedule database 4lni are notified to the CRT input / output device 4d as schedule information p, and the setting process is ended.

[0031]

According to the present invention, by supplying power to the plant monitoring computer from the constant voltage / constant frequency supplying device through this device, the peripheral equipment device of the plant monitoring computer is displayed on the dialog screen of the CRT input / output device. In addition, by enabling distribution management to each device, the operator can remotely operate the power switch without going to the installation site of the conventional distribution board, saving time going to the site in an emergency. Since the power can be turned off, an emergency stop can be made quickly.

According to the present invention, in a computer for monitoring a plant, the peripheral equipment device controller does not request the use of the peripheral equipment device, and the peripheral equipment device which is not operating shuts off the power supply by shutting off the power switch. When the usage request is notified from the user, by turning on the power switch and supplying power again, it is possible to avoid unnecessary power consumption, so consumers who purchase power from outside can save energy costs. Can be reduced.

According to the present invention, in the computer for plant monitoring, the abnormal state of each computer case is also monitored from this apparatus, and when the abnormal state factor is established, the power is supplied to the target computer case. Turn off the power switch on the device,
By stopping the power supply to the target computer case, it is possible to prevent equipment failure due to temperature rise in each case and prevent the generation of smoke due to heat generation. Since it can be provided, it is possible to prevent damage or failure of various devices due to heat.

According to the present invention, the CVCF power supply is switched from the normal system to the DC system.
When switching to the backup power supply, it is possible to operate the power supply status of the plant monitoring computer in an emergency by using the operation schedule of the operation equipment, and the utilization rate of various equipment can be effectively used in an emergency. The loss of important data is reduced by extending the collection time of important data of the plant even when the restoration of the CVCF regular power supply is delayed, which reduces the burden on the operator who monitors the plant. Can be lightened.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a device power supply monitoring device according to a first embodiment.

FIG. 2 is a block diagram showing a device power supply monitoring device according to a second embodiment.

[Fig. 3] Automatically turning on the power switch according to the second embodiment.
It is a flowchart of a blocking process.

FIG. 4 is a block diagram showing a device power supply monitoring device according to a third embodiment.

FIG. 5 is a flow chart of a process of automatically shutting off a power switch when monitoring a temperature inside a computer case according to a third embodiment.

FIG. 6 is a block diagram showing a device power supply monitoring device according to a fourth embodiment.

FIG. 7 is a flowchart of an operation schedule setting process according to the fourth embodiment.

FIG. 8 is a capacity calculation diagram of a DC backup power supply according to a fourth embodiment.

[Explanation of symbols]

 1: Plant monitoring computer 1a: Central processing unit 1b: Peripheral device controller device 1c: Peripheral device device 2: Constant voltage constant frequency supply device (CVCF) 3: DC power supply backup device 4: Device power supply monitoring device 4a: AC power supply Input / output unit 4b: CVCF information input means 4c: Temperature information input means 4d: CRT input / output device 4e: Alarm output means 4f: Abnormality determination means 4g: Operation command setting means 4h: Operation command output means 4i: Operation schedule calculation means 4j : Computer information input means 4k: Computer information determination means 4l: Operation schedule database 4m: Power switch operation means 4n: Power switch a: CVCF operation information b: AC power input c: AC power output d: Case temperature information e: Case Body temperature input f: Abnormality judgment information g: Warning information h: Computer information judgment result j Any charged-shutoff k: Scheduling Information l: schedule the operation command information m: Operation command signal n: Contact output signal o: automatic insertion-opening command p: operation schedule database information q: power switch operation information r: Computer Information

Claims (4)

[Claims] 1. An equipment power supply monitoring device for monitoring equipment power supply of a plant monitoring computer, an operation schedule database for storing equipment number information provided according to various equipments in a plant, and a constant voltage constant frequency power supply. Output adjustment means for adjusting the supply of the AC power input from each of the various devices, and output and display the state of the output adjustment means and the device number information read from the operation schedule database on the screen, and Output display means for outputting a signal according to an arbitrary closing / closing command in accordance with the device number information selected in, and conversion into an ON / OFF signal according to the arbitrary closing / closing command output from the output display means And an operation control means for outputting a signal for controlling the output adjusting means, and a device power supply monitoring device. 2. An equipment power supply monitoring device for monitoring equipment power supply of a plant monitoring computer, an output adjusting means for adjusting supply of AC power input from a constant voltage constant frequency power supply to each of the various equipment, and a constant cycle. The computer information of the various devices in the plant to be input in to determine the online or offline state, the computer information determination means for outputting the closing command / shutoff command based on the state of the output adjustment means, the state of the output adjustment means Output display means for displaying output on the screen, and displaying the state of the output adjusting means on the output display means, and responding to an ON signal and a shutoff command according to a closing command output from the computer information judging means. An apparatus power supply monitoring device comprising: an operation control unit that converts the signal into an OFF signal and outputs a signal that controls the output adjusting unit. 3. An equipment power supply monitoring device for monitoring equipment power supply of a plant monitoring computer, and output adjusting means for adjusting supply of AC power supplied from a constant voltage / constant frequency power supply to each of the various equipment, and the output. Output display means for outputting and displaying the state of the adjusting means on the screen, temperature information input means for inputting the detected temperatures of the various devices as temperature information, and abnormality determination when the temperature information deviates from a set value. Abnormality determination means for outputting information, alarm output means for outputting alarm information created based on the abnormality determination information on the screen of the output display means, computer information of various devices in a plant to be read in a constant cycle, and Computer information judging means for judging and outputting the output of an off signal in accordance with a shutoff command for controlling the on of the output adjusting means based on abnormality judgment information; An operation control means for displaying the state of the output adjusting means on the indicating means, and for outputting a signal for controlling the output adjusting means based on the signal output from the computer information judging means. Equipment power supply monitoring device. 4. An equipment power supply monitoring device for monitoring equipment power supply of a plant monitoring computer, which normally regulates supply of AC power supply from the power supply of the normal system to each of the various equipment, and from the power supply of the emergency system in an emergency. Output adjusting means for adjusting the supply of alternating-current power to each device, operating state input means for inputting the operating state of the normal system power source, and supply power supplied from the regular system power source based on the operating state Determination unit for determining whether the power is supplied from an emergency power source, an operation schedule database that stores device number information and a setting schedule provided according to various devices in the plant, the determination and the device An operation schedule that calculates the setting schedule based on the number information and stores and reads it in the operation schedule database according to the degree of importance. Control unit, an output display unit that outputs and displays the status of the output adjustment unit, the device number information, and the setting schedule on the screen, and if the determination unit determines that the output is from the emergency power supply, A power supply monitoring device, comprising: an alarm output unit that outputs alarm information on the screen of the output display unit; and an operation control unit that outputs a signal for controlling the output adjustment unit based on the setting schedule. apparatus.