JP6815930B2 - Information processing equipment and system monitoring program - Google Patents

Description

An embodiment of the present invention relates to an information processing device and a system monitoring program.

Conventionally, there is known a protection control device that performs an operation on input data by a preset arithmetic program and protects the power system based on the calculated result. When adding another arithmetic program to such a protection control device, it is necessary to change the arithmetic cycle based on the arithmetic time of all the arithmetic programs so that all the arithmetic programs can be executed. However, if the calculation cycle is changed, synchronization with the sampling cycle of the input data may not be achieved, and it may be difficult to determine an abnormality in the power system.

JP-A-2017-5960

An object to be solved by the present invention is to provide an information processing device and a system monitoring program capable of realizing continuous monitoring of an electric power system by determining whether or not an additional program can be executed according to a calculation cycle. Is.

The information processing device of the embodiment includes an input unit, an A / D converter, a storage device, and an arithmetic unit. The input unit inputs an analog signal indicating the measurement result measured in the power system. The A / D conversion unit converts the analog signal input to the input unit into digital data. The storage device stores a basic program that executes an operation for detecting an abnormality in the power system, and at least one additional program that can be executed in addition to the basic program. The arithmetic unit performs an calculation on the digital data converted by the A / D converter based on the basic program or the basic program and the additional program. Further, the arithmetic unit determines whether or not the additional program can be calculated based on the estimated arithmetic time and the arithmetic cycle when the program of the basic program is executed and the assumed arithmetic time when the program of the additional program is executed. Judgment is made, and based on the result of the determination, it is determined whether to execute the calculation based on the basic program or the calculation based on the basic program and the additional program.

The block diagram of the system monitoring apparatus 100 of 1st Embodiment. The block diagram of the arithmetic unit 200 of 1st Embodiment. The figure for demonstrating the basic program data 242 and the additional program data 252 of the 1st Embodiment. The flowchart which shows an example of the determination process of the program executed by the central processing unit 210 of 1st Embodiment. The block diagram of the arithmetic unit 200A of the 2nd Embodiment. The figure for demonstrating the basic program data 244, the additional program data 254, and the assumed calculation time adjustment table 260 of the 2nd Embodiment. The flowchart which shows an example of the determination process of the program executed by the central processing unit 210 of the 2nd Embodiment. The block diagram of the arithmetic unit 200B of the 3rd Embodiment. The figure for demonstrating the basic program data 246 and the additional program data 256 of the 3rd Embodiment. The flowchart which shows an example of the determination process of the program executed by the central processing unit 210B of the 3rd Embodiment. The figure for demonstrating the setting method of the calculation period of the 3rd Embodiment. The flowchart which shows an example of the determination process of the program executed by the central processing unit 210B of 4th Embodiment. The figure for demonstrating the case where the running program exceeds the calculation cycle. The block diagram of the server device 300 connected to the system monitoring device 100. The figure for demonstrating the basic program calculation information 334 of the 5th Embodiment. The figure for demonstrating the additional program calculation information 335 of the 5th Embodiment. The figure for demonstrating the calculation cycle information 336 of the 5th Embodiment. The figure which shows the block diagram of the server apparatus 300A connected to the system monitoring apparatus 100. The figure for demonstrating the system monitoring apparatus information 337 of the 7th Embodiment. The figure for demonstrating the time adjustment data 338 for the server apparatus of 7th Embodiment.

Hereinafter, the information processing apparatus and the system monitoring program of the embodiment will be described with reference to the drawings.

(First Embodiment)
FIG. 1 is a configuration diagram of the system monitoring device 100 of the first embodiment. The system monitoring device 100 and the server device 300 described later are examples of "information processing devices". The system monitoring device 100 shown in FIG. 1 includes, for example, an input unit 110, an A / D converter 120, a transmission processing device 130, an output unit 140, a display device 150, and an arithmetic unit 200. The input unit 110, the A / D converter 120, the transmission processing device 130, the output unit 140, the display device 150, and the arithmetic unit 200 are connected to each other in a state in which data can be transmitted and received via a bus.

The input unit 110 inputs, for example, an analog signal indicating the measurement result of at least one of the voltage and the current measured by a measuring device (not shown) in the power system to which the system monitoring device 100 is connected. The A / D converter 120 converts, for example, an analog signal input to the input unit 110 into digital data.

The transmission processing device 130 transmits / receives data to / from an external device such as an administrator terminal or a server device connected via a communication network such as the Internet or a LAN (Local Area Network). The transmission processing device 130 is, for example, a communication interface such as a NIC (Network Interface Card) or a wireless communication module.

The output unit 140 outputs an output result, error information, and the like to an external device. Further, the output unit 140 outputs, for example, an on / off signal for switching connection or disconnection to the power system to a generator, a transformer, or the like provided in the power system.

The display device 150 displays, for example, the information input by the input unit 110, the processing status of the system monitoring device 100, or the information stored inside the system monitoring device 100. In addition, the display device 150 displays information related to abnormality detection of the power system. The display device 150 is, for example, an LCD (Liquid Crystal Display), an organic EL (Electro Luminescence) display device, or the like. Further, the display device 150 may be a light emitting element such as an LED (Light Emitting Diode).

The arithmetic unit 200 performs arithmetic processing by a program for monitoring the power system on the digital data converted by the A / D converter 120. The details of the function of the arithmetic unit 200 will be described later.

Next, the details of the function of the arithmetic unit 200 will be described. FIG. 2 is a configuration diagram of the arithmetic unit 200 of the first embodiment. The arithmetic unit 200 includes, for example, a central processing unit 210, a volatile memory 220, and a non-volatile memory 230. The central processing unit 210, the volatile memory 220, and the non-volatile memory 230 are connected to each other via a bus so that data can be transmitted and received.

The central processing unit 210 is, for example, a processor such as a CPU (Central Processing Unit). The central processing unit 210 is, for example, a software functional unit that functions by executing a program stored in a non-volatile memory 230 or the like. The central processing unit 210 performs an operation on the digital data converted by the A / D converter 120 based on, for example, the basic program 240 stored in the non-volatile memory 230, or the basic program 240 and the additional program 250. ..

The central processing unit 210 realizes a basic function for detecting an abnormality in the power system by executing, for example, the basic program 240. The basic functions are, for example, a function for calculating the amount of change and integration of digital data, and a function for comparing the calculated result with a threshold value to determine whether or not an abnormality has occurred in the power system. is there.

Further, the central processing unit 210 realizes a function other than the function executed by the basic program 240 by executing the additional program 250. Functions other than the functions executed by the basic program 240 include, for example, a function of classifying by region and time zone to detect anomalies, a function of performing statistical processing on anomaly detection results, and an output mode when an abnormality is detected. Functions to be added, etc. Therefore, when adding a function to the system monitoring device 100, the additional program 250 is rewritten or changed without rewriting the basic program 240. The additional program 250 is executed by the central processing unit 210 in combination with the basic program 240.

Further, can the central processing unit 210 calculate the additional program 250 based on the estimated calculation time and the calculation cycle at the time of executing the program of the basic program 240 and the estimated calculation time at the time of executing the program of the additional program 250? Judge whether or not. Then, the central processing unit 210 determines whether to execute the calculation based on the basic program 240 or the calculation based on the basic program 240 and the additional program 250 based on the determination result. The details of the method of determining the program to be executed by the central processing unit 210 will be described later.

The volatile memory 220 is, for example, a DRAM (Dynamic Random Access Memory) or a SRAM (Static Random Access Memory). While the power is supplied to the volatile memory 220, the program executed by the central processing unit 210, the execution result of the program, etc. are stored in the volatile memory 220, and the stored data is erased when the power is not supplied. Will be done.

The non-volatile memory 230 is, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory). For example, the basic program 240 and the additional program 250 are stored in the non-volatile memory 230. The basic program 240 and the additional program 250 are not erased even if the non-volatile memory 230 is not supplied with power.

In the basic program 240, for example, the basic program data 242 associated with the basic program 240 is stored.

The additional program 250 is generated for each function implemented by the system monitoring device 100, for example. The additional program 250 is downloaded from an external device connected by the transmission processing device 130 or the like and stored in the non-volatile memory 230. Further, the additional program 250 is not stored in the non-volatile memory 230 unless the additional function is mounted on the system monitoring device 100. The additional program 250 stores, for example, the additional program data 252 associated with the additional program 250.

Next, a method of determining the basic program data 242, the additional program data 252, and the program to be executed by the central processing unit 210 will be described. FIG. 3 is a diagram for explaining the basic program data 242 and the additional program data 252 of the first embodiment. In the example of FIG. 3, the basic program data 242 of the basic program 240 and the additional program data 252a and 252b of the additional programs 250A and 250B corresponding to the two functions (function 1 and function 2) added to the system monitoring device 100 are shown. ing.

The basic program data 242 includes, for example, a calculation information area and a basic program area. In the calculation information area, for example, an estimated calculation time for the basic program 240 and a calculation cycle are stored. The estimated calculation time is, for example, the calculation time when the basic program 240 is executed by another device such as a time measuring device (not shown). Further, in the basic program area, the address information and the like of the area in which the basic program 240 is stored are stored.

The additional program data 252a includes, for example, a calculation information area and a function 1 program area. In the calculation information area, for example, the estimated calculation time for the additional program 250A of the function 1 is stored. The estimated calculation time is the calculation time when the additional program 250A is executed by the time measuring device or the like. The function 1 program area stores the address information and the like of the area in which the additional program 250A is stored. The additional program data 252b also stores each information in the same configuration as the additional program data 252a.

FIG. 4 is a flowchart showing an example of a program determination process executed by the central processing unit 210 of the first embodiment. First, the central processing unit 210 acquires the assumed calculation time and calculation cycle of the basic program 240 included in the basic program data 242a (step S100). Next, the central processing unit 210 acquires the estimated calculation time included in the additional program data 250a and 250b (step S102).

Next, the central processing unit 210 adds the estimated calculation time of the basic program 240 and the estimated calculation time of each of the additional programs 250A and 250B (step S104), and whether the added estimated calculation time is equal to or less than the calculation cycle. It is determined whether or not (step S106). When the added estimated calculation time is equal to or less than the calculation cycle, the central processing unit 210 determines that the basic program 240 and the additional programs 250A and 250B can be executed within the calculation cycle (step S108).

Further, when the added assumed calculation time exceeds the calculation cycle, the central processing unit 210 determines that the additional programs 250A and 250B cannot be executed within the calculation cycle and the basic program 240 can be executed (step S110). .. Next, the central processing unit 210 outputs error information indicating that the additional programs 250A and 250B could not be added to the external device or the like via the display device 150 or the output unit 140 (S112).

For example, in the example of FIG. 3, the total of the assumed calculation times of the basic program 240 and the additional programs 250A and 250B is "520 + 10 + 20 = 550 [μs]", and the calculation cycle is smaller than 1.39 [ms]. Therefore, the central processing unit 210 decides to execute the basic program 240 and the additional programs 250A and 250B from the comparison between the total estimated calculation time and the calculation cycle, and executes the determined program within the calculation cycle.

As described above, according to the system monitoring device 100 of the first embodiment, when the function of the system monitoring device 100 is added by executing the additional program, it is determined whether or not the additional program can be executed according to the calculation cycle. Since the operation cycle of the basic program 240 is controlled so as not to be changed, continuous monitoring of the power system can be realized.

(Second Embodiment)
Next, a second embodiment of the system monitoring device will be described. The second embodiment is different from the system monitoring device 100 of the first embodiment in that the arithmetic unit 200A is provided instead of the arithmetic unit 200. Therefore, in the following, the configuration of the arithmetic unit 200A will be mainly described. Further, in the following, the same names and symbols will be used for the configuration having the same functions as the arithmetic unit 200 of the first embodiment, and specific description thereof will be omitted.

FIG. 5 is a configuration diagram of the arithmetic unit 200A of the second embodiment. The arithmetic unit 200A includes, for example, a central processing unit 210A, a volatile memory 220, and a non-volatile memory 230. For example, the basic program 240, the additional program 250, and the assumed calculation time adjustment table 260 are stored in the non-volatile memory 230. The basic program data 244 is stored in the basic program 240. The additional program data 254 is stored in the additional program 250. Details of the basic program data 244, the additional program data 254, and the assumed calculation time adjustment table 260 of the second embodiment will be described later.

The central processing unit 210A changes the estimated calculation time at the time of program execution of the basic program 240 and the additional program 250 based on the device performance type of the system monitoring device 100. The device performance type is, for example, a type associated with the clock frequency of the CPU provided in the device. For example, the central arithmetic processing apparatus 210A refers to the assumed arithmetic time adjustment table 260 stored in the non-volatile memory 230, and includes the apparatus performance type of the system monitoring apparatus 100, the basic program data 244, and the additional program data 254. Based on the conversion data associated with the performance type, the estimated calculation time stored in the basic program data 244 and the additional program data 254 is changed. Further, the central processing unit 210A calculates the total value based on the changed estimated calculation time, and compares the calculated total value with the calculation cycle. It is determined whether or not the additional program 250 can be executed. Then, the central processing unit 210A determines whether to execute the calculation by the basic program 240 or the calculation by the basic program 240 and the additional program 250 based on the determined result.

FIG. 6 is a diagram for explaining the basic program data 244, the additional program data 254, and the assumed calculation time adjustment table 260 of the second embodiment. In the example of FIG. 6, the basic program data 244 of the basic program 240 and the additional program data 254a and 254b of the additional programs 250A and 250B corresponding to the two functions (function 1 and function 2) added to the system monitoring device 100 are shown. ing.

The basic program data 244 includes, for example, a calculation information area and a basic program area. In the calculation information area, for example, an estimated calculation time for the basic program 240, a device performance type, and a calculation cycle are stored. The device performance type is the device performance type of the time measuring device that actually measured the estimated calculation time stored in the calculation information area. Further, in the basic program area, information on the area in which the basic program 240 is stored is stored.

In each calculation information area of the additional program data 254a and 254b, for example, the estimated calculation time and the device performance type for the additional programs 250A and 250B are stored. Further, in each of the additional program areas of the function 1 and the function 2, for example, the address information of the area in which the additional programs 250A and 250B of the function 1 and the function 2 are stored is stored.

In the assumed calculation time adjustment table 260, for example, the magnification information associated with the device performance type of the system monitoring device 100 and the device performance type of the time measuring device is stored. The magnification information is magnification information that is multiplied by the estimated calculation time in order to suppress an error in the estimated calculation time due to the difference between the device performance type of the system monitoring device 100 and the device performance type of the time measuring device. ..

FIG. 7 is a flowchart showing an example of a program determination process executed by the central processing unit 210 of the second embodiment. Of the processes of steps S200 to S214 shown in FIG. 7, the processes of steps S206 to S214 correspond to the processes of steps S104 to S112 shown in FIG. Therefore, in the following, the processing of steps S200 to S204 will be mainly described.

First, the central processing unit 210A acquires the estimated calculation time, device performance type, and calculation cycle of the basic program 240 included in the basic program data 244a (step S200). Next, the central processing unit 210A acquires the estimated calculation time and the device performance type included in the additional program data 254a and 254b (step S202).

Next, the central processing unit 210A refers to the device type correspondence time information 235 stored in the non-volatile memory 230A, and the device performance type of the system monitoring device 100 acquired in the process of step S200, the basic program data 244, and the basic program data 244. The estimated calculation time stored in the basic program data 244 and the additional program data 254a and 254b is changed based on the device performance type stored in the additional program data 254a and 254b (step S204). Then, the central processing unit 210A executes the processing after step S206.

Here, a method of determining a program to be executed by the system monitoring device 100 of the second embodiment will be described with reference to the example of FIG. In the following, it is assumed that the device performance type of the system monitoring device 100 is "B".

In the example of FIG. 6, the device performance type stored in the basic program data 244 is "B". Therefore, the central processing unit 210A refers to the assumed calculation time adjustment table 260 stored in the non-volatile memory 230, and is multiplied by the device performance type of the system monitoring device 100 and the device performance type stored in the basic program data 244. Get 1.0. Similarly, the central processing unit 210A acquires a magnification of 2.0 from the device performance type of the system monitoring device 100 and the device performance type acquired by the additional program data 254a. Further, the central processing unit 210A acquires a magnification of 1.0 from the device performance type of the system monitoring device 100 and the device performance type acquired by the additional program data 254b. The central processing unit 210A changes the estimated calculation time by multiplying each magnification by the estimated calculation time stored in the basic program data 244 and the additional program data 254a and 254b.

Specifically, the estimated calculation time of the basic program 240 is the estimated calculation time 520 [μs] × magnification 1.0 = 520 [μs], and the estimated calculation time of the additional program 250A is the estimated calculation time 10 [μs] ×. The magnification is 2.0 = 20 [μs], and the estimated calculation time of the additional program 250B is 20 [μs] x the magnification of 1.0 = 20 [μs]. That is, in the example of FIG. 6, the assumed calculation time of the additional program 250A is changed. Then, the central processing unit 210A compares the total value of these assumed calculation times of 520 + 20 + 20 = 560 [μs] with the calculation cycle of 1.39 [ms], and the total value of the estimated calculation times is equal to or less than the calculation cycle. Therefore, it is determined that the additional programs 250A and 250B can be executed within the calculation cycle of the basic program 240. As a result, the central processing unit 210A decides to execute the additional programs 250A and 250B together with the basic program 240 within the calculation cycle of the basic program 240.

The assumed calculation time adjustment table 260 in the second embodiment may store the adjusted calculation time instead of the magnification. In this case, the central processing unit 210A refers to the assumed calculation time adjustment table 260 stored in the non-volatile memory 230, and sets the device performance type of the system monitoring device 100 and the device performance type stored in the basic program data 244. Gets the estimated calculation time associated with. Further, the central processing unit 210A acquires the estimated calculation time from the estimated calculation time adjustment table 260 based on the device performance type of the system monitoring device 100 and the device performance type stored in the additional program data 254a and 254b. .. Then, the central processing unit 210A adds each of the acquired assumed calculation times, compares it with the calculation cycle, and determines a program to execute the calculation based on the comparison result.

Further, in the second embodiment, a plurality of assumed calculation time adjustment tables 260 may be provided for each function realized by executing the basic program 240 or the additional program 250.

As described above, according to the second embodiment, in addition to achieving the same effect as that of the first embodiment, an error in calculation time due to a difference in device performance type between the time measuring device and the system monitoring device 100 can be obtained. It can be suppressed.

(Third Embodiment)
Next, a third embodiment of the system monitoring device will be described. The third embodiment is different from the system monitoring device 100 of the first embodiment in that the arithmetic unit 200B is provided instead of the arithmetic unit 200. Therefore, in the following, the configuration of the arithmetic unit 200B will be mainly described. Further, in the following, the same names and symbols will be used for the configuration having the same functions as the arithmetic unit 200 of the first embodiment, and specific description thereof will be omitted.

FIG. 8 is a configuration diagram of the arithmetic unit 200B of the third embodiment. The arithmetic unit 200B includes, for example, a central processing unit 210B, a volatile memory 220, and a non-volatile memory 230. For example, the basic program 240 and the additional program 250 are stored in the non-volatile memory 230. The basic program data 246 is stored in the basic program 240. Further, the additional program data 256 is stored in the additional program 250.

FIG. 9 is a diagram for explaining the basic program data 246 and the additional program data 256 of the third embodiment. In the example of FIG. 9, the basic program data 246 of the basic program 240 and the additional program data 256a and 256b of the additional programs 250A and 250B corresponding to the functions 1 and 2 are shown.

The basic program data 246 is different from the basic program data 242 of the first embodiment in that the estimated calculation time is not stored in the calculation information area. Further, the additional program data 256a and 256b are different from the additional program data 252a and 252b of the first embodiment in that the arithmetic information area is deleted.

The central processing unit 210B does not acquire the estimated calculation time from the basic program data 246 and the additional program data 256a and 256b, but executes the basic program 240 and the additional programs 250A and 250B on a trial basis, and performs the assumed calculation from the execution result. Get the total time. Executing a program on a trial basis does not actually execute the program in the operation of the system monitoring device 100, but virtually processes the program in order to measure the processing calculation time of the program in the environment of the arithmetic unit 200B. Is executed, and the processing result etc. is discarded.

Further, the central processing unit 210B determines whether or not the additional program can be executed within the calculation cycle of the basic program by comparing the total of the acquired estimated calculation time with the calculation cycle.

FIG. 10 is a flowchart showing an example of a program determination process executed by the central processing unit 210B of the third embodiment. Of the processes of steps S300 to S312 shown in FIG. 10, the processes of steps S308 to S312 correspond to the processes of steps S108 to S112 shown in FIG. Therefore, in the following, the processing of steps S300 to S306 will be mainly described.

First, the central processing unit 210B acquires the calculation cycle of the basic program 240 included in the basic program data 244a (step S300). Next, the central processing unit 210B sets a calculation cycle longer than the acquired calculation cycle (step S302).

FIG. 11 is a diagram for explaining a method of setting the calculation cycle of the third embodiment. The central processing unit 210B sets a calculation cycle Tp2 that is longer than the calculation cycle Tp1 stored in the basic program data 246. The calculation cycle Tp2 is, for example, an integral multiple of the calculation cycle Tp1. The central processing unit 210B sets, for example, a calculation cycle Tp2 that is twice the calculation cycle Tp1 by dividing the clock signal in the device by two.

Next, the central processing unit 210B experimentally executes the basic program 240 and the additional programs 250A and 250B (additional A and additional B shown in FIG. 11) based on the set calculation cycle Tp2, and actually executes them. The calculation time T1 at that time is acquired (step S304). Further, the central processing unit 210B determines whether or not the actual calculation time T1 is equal to or less than the calculation cycle Tp1 (step S306). In the example of FIG. 11, since the actual calculation time T1 exceeds the calculation cycle Tp1, the central processing unit 210B determines that the basic program can be executed.

As described above, according to the third embodiment, in addition to having the same effect as that of the first embodiment, the calculation time of the program executed on a trial basis in the environment of the system monitoring device 100 actually used. Since the comparison with the calculation cycle can be performed using, it is possible to determine whether or not the additional program can be executed more accurately. Further, according to the third embodiment, since the calculation is performed in a sufficiently long calculation cycle, the system monitoring device 100 is stopped even if the calculation time when executed on a trial basis exceeds the calculation cycle of the basic program. It is possible to measure the time required for the calculation without affecting the operation.

(Fourth Embodiment)
Next, a fourth embodiment of the system monitoring device will be described. In the fourth embodiment, the content of the comparison processing between the calculation time and the calculation cycle of the program in the central processing unit 210B is different from that of the calculation device 200B of the third embodiment. Therefore, in the following, the configuration of the central processing unit 210B will be mainly described. Further, in the following, the same names and symbols will be used for the configuration having the same functions as the arithmetic unit 200B of the third embodiment, and specific description thereof will be omitted.

The central processing unit 210B of the fourth embodiment does not execute the basic program 240 and the additional programs 250A and 250B on a trial basis, but actually executes and executes the basic program 240 and the additional programs 250A and 250B. It is determined whether or not the calculation time exceeds the calculation cycle, and it is determined whether or not the additional programs 250A and 250B are executed from the next time onward according to the determination result.

FIG. 12 is a flowchart showing an example of a program determination process executed by the central processing unit 210B of the fourth embodiment. First, the central processing unit 210B acquires the calculation cycle of the basic program 240 included in the basic program data 244a (step S400). Next, the central processing unit 210B executes the basic program 240 and the additional programs 250A and 250B (step S402).

Next, the central processing unit 210B determines whether or not the program being executed exceeds the calculation cycle of the basic program (step S404). When the program being executed exceeds the calculation cycle, the central processing unit 210B stops the additional program being executed (step S406) and outputs an error (step S408). Next, the central processing unit 210B determines that the basic program can be executed from the next time onward (step S410). Further, when the calculation time during execution does not exceed the calculation cycle, the central processing unit 210B determines that the basic program and the additional program can be executed next time (step S412).

FIG. 13 is a diagram for explaining a case where the program being executed exceeds the calculation cycle. The central processing unit 210B executes the basic program 240 and the additional programs 250A and 250B, and when the calculation time during execution exceeds the calculation cycle, the additional program executed at that time (in the example of FIG. 13). , The additional program 250B) is stopped, and the basic program 240 is executed from the next cycle onward.

As described above, according to the fourth embodiment, in addition to achieving the same effect as that of the first embodiment, the basic program and the additional program are executed to determine whether or not the calculation time exceeds the calculation cycle. By doing so, it is possible to determine whether or not the additional program can be executed. Further, when the calculation time exceeds the calculation cycle, the power system can be continuously monitored without impairing the function of the system monitoring device 100 by executing the basic program from the next time onward.

(Fifth Embodiment)
Next, a fifth embodiment of the system monitoring device will be described. In the fifth embodiment, as compared with the arithmetic unit 200A of the second embodiment, the server device 300 connected to the system monitoring device 100 determines whether or not the system monitoring device 100 can execute the additional program. Is different. Therefore, in the following, the configuration of the server device will be mainly described. Further, in the following, the same names and reference numerals will be used for the configurations having the same functions as the system monitoring device 100 of the second embodiment, and specific description thereof will be omitted.

FIG. 14 is a configuration diagram of a server device 300 connected to the system monitoring device 100. The server device 300 includes, for example, a server-side transmission processing device 310, a server-side central processing unit 320, and a storage device 330. The server-side central processing unit 320 is an example of a "arithmetic unit".

The server-side transmission processing device 310 is connected to the transmission processing device 130 of the system monitoring device 100 via a communication network to transmit and receive data. For example, the server-side transmission processing device 310 is, for example, a communication interface such as a NIC or a wireless communication module.

The server-side central processing unit 320 is, for example, a processor such as a CPU. The server-side central processing unit 320 determines whether or not the additional program can be executed in the connected system monitoring device 100, and outputs the result to the system monitoring device 100. Further, the server-side central processing unit 320 outputs the basic program 331 and the additional program 332 stored in the storage device 330 to the system monitoring device 100.

The storage device 330 is realized by, for example, a non-volatile storage medium such as a ROM (Read Only Memory), a flash memory, an HDD (Hard Disk Drive), or an SD card, and a volatile storage medium such as a RAM or a register. .. The storage device 330 contains, for example, a plurality of basic programs 331 and additional programs 332 provided to the system monitoring device 100, an estimated calculation time adjustment table 333, basic program calculation information 334, additional program calculation information 335, and a calculation cycle. Information 336 and is stored. The basic program 331, the additional program 332, and the estimated calculation time adjustment table 333 correspond to the basic program 240, the additional program 250, and the estimated calculation time adjustment table 260.

FIG. 15 is a diagram for explaining the basic program calculation information 334 of the fifth embodiment. The basic program calculation information 334 stores the estimated calculation time and the device performance type of the measured time measuring device in association with the basic program name that identifies the basic program.

FIG. 16 is a diagram for explaining the additional program calculation information 335 of the fifth embodiment. The additional program calculation information 335 stores the estimated calculation time and the device performance type of the measured time measuring device in association with the name of the additional program that identifies the additional program.

FIG. 17 is a diagram for explaining the calculation cycle information 336 of the fifth embodiment. The calculation cycle information 336 stores the calculation cycle in association with the performance type of the system monitoring device 100.

The server-side central processing unit 320 has an estimated calculation time and device corresponding to each program from the basic program calculation information 334 and the additional program calculation information 335 for the basic program 331 and the additional program 332 to be executed by the system monitoring device 100. Get the performance type. Further, the server-side central processing unit 320 acquires a magnification for adjusting the time between the system monitoring device 100 and the time measuring device from the assumed calculation time adjustment table 333. Further, the server-side central processing unit 320 acquires the calculation cycle from the performance type of the system monitoring device 100. Then, the server-side central processing unit 320 acquires the total of the estimated calculation time when the basic program 331 and the additional program 332 are executed from the acquired estimated calculation time and magnification, and the acquired total is equal to or less than the calculation cycle. Whether or not the additional program 332 can be executed is determined.

For example, when the system monitoring device 100 having the performance type "B" executes the basic program B-0001 and the additional programs 1 and 3, the estimated calculation time of the basic program is 330 x magnification 1.0 = 330 [μs]. The estimated calculation time of the additional program 1 is 10 × magnification 2.0 = 20 [μs], and the estimated calculation time of the additional program 3 is 30 × magnification 1.0 = 30 [μs]. The server-side central processing unit 320 obtains a total value of these assumed calculation times of 330 + 20 + 30 = 380 [μs], and compares the result with the calculation cycle of 1.67 [ms]. Since the total value of the assumed calculation time is equal to or less than the calculation cycle, the server-side central processing unit 320 determines that the additional programs 1 and 3 can be executed together with the basic program B-0001. Further, the server-side central processing unit 320 outputs, for example, a determination result and / or an executable program to the system monitoring device 100.

As described above, according to the fifth embodiment, in addition to achieving the same effect as that of the second embodiment, it is determined whether or not the additional program can be executed in the calculation cycle of the basic program by the server device 300. As a result, the processing load of the system monitoring device 100 can be reduced.

(Sixth Embodiment)
Next, a sixth embodiment of the system monitoring device will be described. In the sixth embodiment, as compared with the server device 300 of the fifth embodiment, instead of storing the additional program calculation information 335 in the storage device 330, the calculation information of the additional program data 254a and 254b in the second embodiment The difference is that the estimated calculation time and device performance type stored in the area are used. The additional program data 254a and 254b are stored in, for example, the additional program 332. Further, the additional program data 254a and 254b may be output from the system monitoring device 100 to the server device 300.

In the sixth embodiment, the server-side central processing unit 320 calculates the total estimated calculation time by using the estimated calculation time and the device performance type stored in the calculation information area of the additional program data 254a and 254b. In the sixth embodiment, the assumed calculation time, the device performance type, and the calculation cycle may be acquired from the basic program data 244 also for the basic program 240.

As described above, according to the sixth embodiment, the same effect as that of the fifth embodiment can be obtained, and the amount of data stored in the storage device 330 can be reduced.

(7th Embodiment)
Next, a seventh embodiment of the system monitoring device will be described. FIG. 18 is a diagram showing a configuration diagram of a server device 300A connected to the system monitoring device 100. Compared with the server device 300 of the fifth embodiment, the server device 300A of the seventh embodiment includes the server-side central processing unit 320A instead of the server-side central processing unit 320, and the server-side central processing unit processing The difference is that the device 320A functions as an emulator of the central processing unit 210 in the system monitoring device. Therefore, in the following, the functions of the server-side central processing unit 320A will be mainly described. Further, in the following, the same names and symbols will be used for the configuration having the same functions as the server device 300, and specific description thereof will be omitted.

The server device 300A includes, for example, a server-side transmission processing device 310, a server-side central processing unit 320A, and a storage device 330A. Further, the storage device 330A stores the basic program 331, the additional program 332, the system monitoring device information 337, and the time adjustment data 338 for the server device.

FIG. 19 is a diagram for explaining the system monitoring device information 337 of the seventh embodiment. The system monitoring device information 337 stores the device performance type and the calculation cycle of the system monitoring device 100. The system monitoring device information 337 may be acquired, for example, by making an inquiry to the system monitoring device 100, or may be set on the server device 300 side.

FIG. 20 is a diagram for explaining the time adjustment data 338 for the server device according to the seventh embodiment. In the time adjustment data 338 for the server device, for example, the device performance type of the system monitoring device 100 is associated with the adjustment magnification with respect to the basic program and the additional program calculation time. The adjustment magnification is, for example, adjustment information for the calculation time of the execution program and the additional program executed by the server-side central processing unit 320A in place of the central processing unit 210 of the system monitoring device 100.

The server-side central processing unit 320A executes an execution program and an additional program in place of the central processing unit 210 of the system monitoring device 100 to acquire the calculation time. Further, the server-side central processing unit 320A refers to the time adjustment data 338 for the server device based on the device performance type of the system monitoring device 100 stored in the system monitoring device information 337, and the device performance of the system monitoring device 100. Acquire the adjustment magnification corresponding to the type. Then, the server-side central processing unit 320A multiplies the calculation time by the adjustment magnification, and compares the multiplied calculation time with the calculation cycle stored in the system monitoring device information 337, thereby causing the system monitoring device 100 to perform. Determine whether the additional program can be executed.

For example, when determining whether or not the basic program and the additional program 1 can be executed in the system monitoring device 100 whose device performance type is "A", the server-side central processing unit 320A uses the basic program and the additional program. Execute 1. For example, if the calculation time of the basic program is 800 [μs] and the calculation time of the additional program 1 is 10 [μs], the server-side central processing unit 320A has 800 + 10 = 810 [μs] as the total calculation time. Is calculated. Further, the server-side central processing unit 320A acquires an adjustment magnification of 0.5 for the device performance type from the server device time adjustment data 338, multiplies it by the total value of the calculation time, and 810 × 0.5 = 405 [μs. ] Is calculated. Then, the server-side central processing unit 320A compares the calculated calculation time 405 [μs] with the calculation cycle 1.39 [ms] in the system monitoring device 100 stored in the system monitoring device information 337, and calculates the calculation time. Is equal to or less than the calculation cycle, so that the system monitoring device 100 determines that the basic program and the additional program 1 can be executed.

As described above, according to the seventh embodiment, in addition to achieving the same effect as that of the sixth embodiment, by actually executing the basic program and the additional program on the server device 300A, the calculation time is more accurate. Can be calculated. The above-mentioned first to seventh embodiments may be combined with a part or all of the other embodiments.

According to at least one embodiment described above, the input unit 110 for inputting an analog signal indicating the measurement result measured in the power system and the A / D for converting the analog signal input to the input unit 110 into digital data. A converter 120, a basic program 240 that executes an operation for detecting an abnormality in the power system, a non-volatile memory 230 that stores at least one additional program that can be executed in addition to the basic program 240, and a basic program. A calculation device 200 that performs a calculation on digital data converted by the A / D converter 120 based on the 240 or the basic program 240 and the additional program 250, and is an assumed calculation at the time of program execution of the basic program 240. Based on the time and calculation cycle and the estimated calculation time at the time of program execution of the additional program 250, it is determined whether or not the additional program 250 can be calculated, and based on the result of the determination, based on the basic program 240. By having a calculation device 200 that determines whether to execute a calculation or to execute a calculation based on the basic program 240 and the additional program 250, the power is determined by determining whether or not the additional program can be executed according to the calculation cycle. Continuous monitoring of the system can be realized.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention as well as the invention described in the claims and the equivalent scope thereof.

100 ... System monitoring device, 110 ... Input unit, 120 ... A / D converter, 130 ... Transmission processing device, 140 ... Output unit, 150 ... Display device, 200 ... Computing device, 210 ... Central processing unit, 220 ... Volatile Sexual memory, 230 ... Non-volatile memory, 240, 331 ... Basic program, 242, 244, 246 ... Basic program data, 250, 332 ... Additional program, 252, 254, 256 ... Additional program data, 300 ... Server device, 310 ... Server-side transmission processing device, 320 ... Server-side central processing unit, 330 ... Storage device

Claims (8)

An input unit that inputs an analog signal indicating the measurement results measured in the power system,
An A / D converter that converts the analog signal input to the input unit into digital data,
A storage device that stores a basic program that executes an operation for detecting an abnormality in the power system, and at least one additional program that can be executed in addition to the basic program.
An arithmetic device that performs operations on digital data converted by the A / D converter based on the basic program or the basic program and the additional program, and is assumed at the time of program execution of the basic program. Based on the calculation time and calculation cycle, and the estimated calculation time when the additional program is executed, it is determined whether or not the additional program can be calculated, and based on the result of the determination, the basic program is used. And an arithmetic unit that determines whether to execute the arithmetic based on the basic program and the additional program.
Information processing device equipped with. The arithmetic unit changes the estimated arithmetic time at the time of program execution of the basic program and the additional program based on the performance type of the information processing apparatus.
The information processing device according to claim 1. The basic program and the additional program are associated with the performance type of the measuring device that measures the estimated calculation time at the time of executing the program.
The arithmetic unit changes the estimated arithmetic time by multiplying the estimated arithmetic time by a magnification determined based on the performance type of the measuring apparatus and the performance type of the information processing apparatus.
The information processing device according to claim 2. The basic program and the additional program are associated with the performance type of the measuring device that measures the estimated calculation time at the time of executing the program.
The arithmetic unit changes the estimated arithmetic time of the basic program and the additional program to an estimated arithmetic time determined based on the performance type of the measuring device and the performance type of the information processing apparatus.
The information processing device according to claim 2. The arithmetic unit measures the arithmetic time of the basic program and the additional program by trially executing the basic program and the additional program in a cycle longer than the arithmetic cycle, and the assumption obtained by the measurement. Based on the calculation time and the calculation cycle of the basic program, it is determined whether to execute the calculation based on the basic program or the calculation based on the basic program and the additional program.
The information processing device according to any one of claims 1 to 4. The arithmetic unit executes the basic program and the additional program, and when the arithmetic time being executed exceeds the arithmetic cycle of the basic program, the arithmetic apparatus stops the execution of the additional program and starts from the next arithmetic cycle. Performing the above calculation based on the basic program,
The information processing device according to any one of claims 1 to 5. It further includes an output unit that outputs information about the result calculated by the arithmetic unit to an external device.
The information processing device according to any one of claims 1 to 6. On the computer
An analog signal indicating the measurement result measured in the power system is input to the input unit,
The analog signal input to the input unit is converted into digital data.
The estimated calculation time and calculation cycle at the time of program execution of the basic program that executes the calculation for detecting the abnormality of the power system stored in the storage device, and at least one additional program that can be executed in addition to the basic program. Based on the estimated calculation time at the time of program execution, it is determined whether or not the additional program can be calculated.
Based on the determination result, the digital data is made to decide whether to execute the calculation based on the basic program or the calculation based on the basic program and the additional program.
System monitoring program.

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