JP4749021B2 - Supervisory control device - Google Patents

Description

  The present invention relates to a monitoring control device that receives measurement data in, for example, a factory, a building, and a distribution system within a certain limited range.

  A conventional monitoring control device is composed of a plurality of service processors and an integrated monitoring device that manages them, and when measuring data is transmitted / received between the integrated monitoring device and the service processor, it is adapted to the usage environment of the service processor. Dedicated monitoring control software is stored in the memory of the integrated monitoring device. (For example, see Patent Document 1)

Japanese Patent Laid-Open No. 5-20118 (FIG. 1 and description thereof)

  Conventional monitoring and control devices store dedicated monitoring and control software in the memory of the integrated monitoring device in accordance with the service processor usage environment. It is necessary to send the newly created monitoring and control software from the remote maintenance center to the integrated monitoring device, and the cost of software production etc. is incurred every time the monitoring and control device or service processor is expanded And there was a problem that took development time.

  In addition, if the above means is not used, it is necessary to produce software tailored to the signal input / output unit that will be expanded in the future and store the software in the memory of the integrated monitoring device or service processor. There was a problem of development cost and time.

  The present invention has been made to solve the above-described problems. Even if the signal input / output section configuration changes due to a change in the use environment or an increase in the number of applicable systems, costs for software production and the like are incurred. The goal is to solve problems and development time-consuming problems.

The monitoring and control apparatus according to the present invention processes a plurality of signal input / output units in which unique software for processing the obtained measurement data is stored in a memory, and the measurement data input from the plurality of signal input / output units. When the central processing unit and the plurality of signal input / output units are connected by the operation of the monitoring control device, the specific software of the plurality of signal input / output units is If the software in the memory of the signal input / output unit that is sequentially stored in the memory of the central processing unit is different from the unique software stored in the memory of the central processing unit, the connected signal input Software in the memory of the output unit is stored in the memory of the central processing unit, and the specific software stored in the memory by an instruction to stop the monitoring control device E A are both a shall be deleted.

The monitoring control device according to the present invention includes a plurality of signal input / output units in which unique software for processing obtained measurement data is stored in a memory, and a central processing unit for processing the measurement data input from the plurality of signal input / output units. When the central processing unit and the plurality of signal input / output units are connected by the operation of the monitoring control device, the specific software of the plurality of signal input / output units is When the software in the memory of the signal input / output unit that is sequentially stored in the memory of the central processing unit is different from the unique software stored in the memory of the central processing unit, the connected signal input / output Software stored in the memory of the central processing unit is stored in the memory of the central processing unit and stored in the memory by an instruction to stop the monitoring control device Runode E A is deleted both, and if the configuration of the signal output unit is changed, when you add a signal output unit having a function that was not assumed future software changes in the central processing unit is unnecessary , development costs, it is possible to reduce the development time, moreover, when there are many signal input and output unit from Rukoto the specific software stored in the memory by an instruction for stopping the monitoring control unit are both deleted If the software in the memory of the connected signal input / output unit is different from the unique software stored in the memory of the central processing unit, the software in the memory of the connected signal input / output unit Is stored in the memory of the central processing unit, the startup time of the supervisory control device can be shortened.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIG. 1 which is a block diagram showing an example of a monitoring control device.

  In FIG. 1, the monitoring control device 100 includes a central processing unit 10, a signal input / output unit 20, and a signal input / output unit 30. The monitoring control device 100 is installed in a factory, for example, and the signal input / output units 20 and 30 are provided for each power system in the factory (for example, a single-phase two-wire circuit system or a three-phase four-wire circuit system). It is done.

  The signal input / output unit 20 is, for example, an input / output unit to which measurement data such as voltage and current of a single-phase two-wire circuit is input. The signal input / output unit 30 is, for example, an input / output unit to which measurement data such as voltage and current of a three-phase four-wire circuit is input.

  The central processing unit 10 includes an internal memory 11 in which software for operating the entire monitoring control device 100 is stored, main processing executed by the monitoring control device 100, the signal input / output unit 20, and the signal For example, it includes a microcomputer 12 that performs processing for displaying measurement data such as voltage and current input from the input / output unit 30 on a display unit 13 described later, and a display unit 13 that displays measurement data.

  The microcomputer 12 collects the measurement data 25 and 35 from the signal input / output units 20 and 30, displays the measurement data 25 and 35 for each of the signal input / output units 20 and 30 on the display unit 13, Display screen switching, alarm monitoring of the measurement data 25 and 35, and control output of loads 27 and 37 described later to the respective inputs and outputs 24 and 34 are executed.

  The internal memory 11 stores software 11a for the microcomputer 12 to execute functions, and general software 11b for managing the specific software 21a and 31a of the signal input / output units 20 and 30. Yes.

  The signal input / output unit 20 displays measurement data 25 such as voltage and current input from the single-phase two-wire circuit on the display unit 13 of the central processing unit 10, and An external memory 21 storing specific software 21a for alarm monitoring control and setting, an internal memory 22 storing software 22a for operating the signal input / output unit 20, and the signal input / output unit 20 And the input / output unit 24 that measures the measurement data 25 and executes a control output to the load 27 based on a command from the microcomputer 23. The specific software 21a is software that can be stored in the internal memory 11 of the central processing unit 10 and used.

  The signal input / output unit 30 displays measurement data 35 such as voltage and current input from the three-phase four-wire circuit on the display unit 13 of the central processing unit 10, and An external memory 31 storing specific software 31a for performing alarm monitoring control and setting, an internal memory 32 storing software 32a for operating the signal input / output unit 30, and the signal input / output unit 30 And the input / output 34 that measures the measurement data 35 and executes a control output to the load 37 based on a command from the microcomputer 33. The specific software 31a is software that can be stored in the internal memory 11 of the central processing unit 10 and used.

  The central processing unit 10 and the signal input / output unit 20 are electrically connected by a connector 14, and signal transmission between the central processing unit 10 and the signal input / output unit 20 is, for example, a serial interface. It is performed using RS-485. The signal input / output unit 20 and the signal input / output unit 30 are electrically connected by a connector 26, and transmit signals between the signal input / output unit 20 and the signal input / output unit 30.

  Next, the operation of the monitoring control apparatus 100 configured as described above will be described.

  When the monitoring control device 100 is operated, the software 11a in the internal memory 11 of the central processing unit 10 is read, and the microcomputer 12 of the central processing unit 10 is activated. When the software 11a is executed, a model code provided to identify the signal input / output units 20 and 30 stored in the internal memories 22 and 32 of the signal input / output units 20 and 30 through the connectors 14 and 26 Is read. The model code is an identification number assigned by the function of the signal input / output units 20 and 30.

  When the model code is read out, the positions of the specific software 21a and 31a of the signal input / output units 20 and 30 are detected based on the model code, and the detected specific software 21a and 31a are, in this example, the central processing. The unique software 21 a closer to the unit 10 is stored in the internal memory 11 first. That is, first, the unique software 21a in the external memory 21 of the signal input / output unit 20 is stored in the internal memory 11 of the central processing unit 10 (arrow A). Next, similarly, the specific software 31a in the external memory 31 of the signal input / output unit 30 is stored in the internal memory 11 of the central processing unit 10 (arrow B). By storing the specific software 21a and 31a in the internal memory 11, the software 11a and the specific software 21a and 31a can be executed by the integrated software 11b.

Next, the microcomputer 23 of the signal input / output unit 20 is activated by the software 22a stored in the internal memory 22, and when the signal input / output unit 20 is activated by this activation, the voltage input from the input / output unit 24, For example, calculation is performed to obtain electric power and electric energy from measurement data such as current. Similarly, the microcomputer 32 of the signal input / output unit 30 is activated by software 32a stored in the internal memory 32. When the signal input / output unit 30 is activated by this activation, the voltage input from the input / output unit 34, Measurement data 35 such as current is calculated in the same manner as described above.

  Next, when the central processing unit 10 executes a data collection command using the specific software 21a in the internal memory 11, the measurement data 25 input from the input / output unit 24 of the signal input / output unit 20 and processed by the microcomputer 23 is The data is stored in a data storage unit (not shown) of the internal memory 11 of the central processing unit 10 via the connector 14. Similarly, the measurement data 35 processed by the microcomputer 33 is also stored in a data storage unit (not shown) of the internal memory 11 via the connectors 26 and 14. The central processing unit 10 displays the measurement data 25 and 35 stored in a data storage unit (not shown) of the internal memory 11 for each of the signal input / output units 20 and 30 using the specific software 21a and 31a on the display unit 13.

Next, the central processing unit 10 sets the upper and lower limit set values in which the measurement data 25 stored in the internal memory 11 by the microcomputer 12 sets the upper limit value and the lower limit value of the current of the signal input / output unit 20, for example. If it exceeds the upper and lower limit set values as a result of the determination process, an alarm alarm generation command for notifying that the measurement data 25 is abnormal is sent via the connector 14. To the signal input / output unit 20. That is, the central processing unit 10 has an alarm monitoring function. The signal input / output unit 20 that has received the alarm alarm generation command generates an alarm alarm such as a buzzer sound or LED blinking. Next, similarly to the signal input / output unit 30, the central processing unit 10 determines whether the measurement data 35 stored in the internal memory 11 exceeds the upper and lower limit set values of the signal input / output unit 30. Judgment processing is performed.

  For example, the rated voltage value is set in a set value area (not shown) of the internal memory 11 of the central processing unit 10. The rated value is set and changed by a setting button (not shown) of the display unit 13 while the central processing unit 10 is in operation.

  When the measurement data 25 stored in the internal memory 11 is out of the set value range, the central processing unit 10 needs to cut off the load. When a control calculation process for controlling the input / output unit 20 is performed and the load needs to be cut off, a load cut-off control output command is transmitted to the signal input / output unit 20. The signal input / output unit 20 that has received the load output control output command from the central processing unit 10 transmits the control output to the load 27 at the input / output unit 24 to block or control the load. Similarly, the central processing unit 10 performs similar control for the signal input / output unit 30, and the signal input / output unit 30 operates in the same manner as the signal input / output unit 20.

  When an instruction to stop the monitoring control device 100 is executed, the connection between the central processing unit 10 and the signal input / output units 20 and 30 is released, and the specific software 21a and 31a in the internal memory 11 of the central processing unit 10 are deleted. . Since unnecessary software has been deleted, a large amount of necessary software is stored even if the capacity of the internal memory 11 is free and the next activation is performed, for example, even when there are many types of signal input / output units connected to the central processing unit 10. It is possible.

1 includes the central processing unit 10 and the two signal input / output units 20 and 30, but the signal input / output unit has one signal input / output unit or a different function. 3
There may be more than one.

  In the above operation, if the central processing unit 10 cannot identify the model code, the central processing unit 10 determines that there is no signal input / output unit and stops storing the specific software in the internal memory 11 of the central processing unit 10. However, the central processing unit 10 does not execute monitoring control.

  As described above, according to the first embodiment of the present invention, the unique software 21a, 31a is stored for each of the signal input / output units 20, 30, and is stored in the internal memory 11 of the central processing unit 10 during operation of the monitoring control device 100. Since the specific software 21a and 31a of the signal input / output units 20 and 30 are stored, when the configuration of the signal input / output units 20 and 30 is changed or a signal input / output unit having a function that was not assumed in the future is provided. When added, there is no need to change the software of the central processing unit 10 which has been necessary in the past, and the development cost and the development period can be reduced.

  In the first embodiment, the measurement data 25 and 35 are displayed on the display unit 13. However, the measurement data 25 and 35 may be communicated to the outside from an input / output terminal (not shown).

Embodiment 2. FIG.
A second embodiment of the present invention will be described below with reference to FIG. 2 which is a block diagram showing an example of a monitoring control device. In FIG. 2, the same reference numerals as those in FIG.

  In FIG. 2, the monitoring control device 200 includes a central processing unit 10, a signal input / output unit 20, a signal input / output unit 30, and a signal input / output unit 40. Measurement data from a single-phase two-wire circuit is received. The signal input / output unit 20 to be input and the signal input / output unit 30 to which measurement data from a three-phase four-wire circuit are input are the same as those described in the first embodiment, The output unit 40 is a signal input / output unit to which measurement data from the same single-phase two-wire circuit as the signal input / output unit 20 is input. For example, the signal input / output unit 20 is provided in a power system for factory lighting of a single-phase two-wire circuit, and the signal input / output unit 40 is provided in a power system of a factory power source of a single-phase two-wire circuit.

  The central processing unit 10 includes an internal memory 11 in which software for operating the monitoring control device 200 is stored, a main process of the monitoring control device 200, for example, a microcomputer 12 that performs processing for displaying measurement data, and a measurement And a display unit 13 for displaying data. The microcomputer 12 collects measurement data from the signal input / output units 20, 30, 40, displays measurement data for each signal input / output unit 20, 30, 40, display screen switching, monitoring, and each signal input / output unit 20. , 30, and 40 are executed. The internal memory 11 stores upper software 11a for executing the processing of the central processing unit 10 and overall software 11b for managing the specific software 21a and 31a.

  The central processing unit 10 and the signal input / output unit 20 are electrically connected by a connector 14, and signals are transmitted between the central processing unit 10 and the signal input / output unit 20. The signal input / output unit 20 and the signal input / output unit 30 are electrically connected by a connector 26, and signals are transmitted between the signal input / output unit 20 and the signal input / output unit 30. The signal input / output unit 30 and the signal input / output unit 40 are electrically connected by a connector 36, and signals are transmitted between the signal input / output unit 30 and the signal input / output unit 40.

  Next, the operation of the monitoring control apparatus 200 configured as described above will be described.

  When the monitoring control device 200 is operated, the software 11a in the internal memory 11 of the central processing unit 10 is read, and the microcomputer 12 of the central processing unit 10 is activated. When the software 11a is executed, the signal input / output units 20, 30, 40 stored in the internal memories 22, 32, 42 of the signal input / output units 20, 30, 40 are identified via the connectors 14, 26, 36. The model code provided for the purpose is read out.

  Since the signal input / output unit 20 and the signal input / output unit 40 have the same model code, the positions of the specific software 21a and 31a of the signal input / output units 20 and 30 are detected, and the detected specific software 21a and 31a are detected in this example. The unique software 21a closer to the central processing unit 10 is stored in the internal memory 11 first. That is, first, the unique software 21a in the external memory 21 of the signal input / output unit 20 is stored in the internal memory 11 of the central processing unit 10 (arrow A). Next, similarly, the unique software 31a in the external memory 31 of the signal input / output unit 30 is stored in the internal memory 11 of the central processing unit 10 (arrow B). Since the unique software 41a in the external memory 41 of the signal input / output unit 40 is the same as the unique software 21a, it is not stored in the internal memory 11 and the activation time is shortened. By storing the specific software 21a and 31a in the internal memory 11, the software 11a and the specific software 21a and 31a can be executed by the integrated software 11b. Note that the software in the external memory 41 of the connected signal input / output unit 40 is the unique software stored in the internal memory 11 of the central processing unit 10 (the unique software of the signal input / output unit 20 previously stored). Otherwise, the specific software in the external memory 41 of the connected signal input / output unit 40 is stored in the internal memory 11 of the central processing unit 10.

  Next, the microcomputer 23 of the signal input / output unit 20 is activated by the software 22a stored in the internal memory 22, and when the signal input / output unit 20 is activated by this activation, the voltage input from the input / output unit 24, Measurement data 25 such as current is measured and calculated. Similarly, the microcomputer 32 of the signal input / output unit 30 is activated by software 32a stored in the internal memory 32. When the signal input / output unit 30 is activated by this activation, the voltage input from the input / output unit 34, Measurement data 35 such as current is measured and calculated. Similarly, the microcomputer 42 of the signal input / output unit 40 is activated by software 42a stored in the internal memory 42. When the signal input / output unit 40 is activated by this activation, the voltage input from the input / output unit 44, Measurement data 45 such as current is measured and calculated.

  The central processing unit 10 collects data from the signal input / output units 20, 30, and 40, and executes alarm monitoring and control output to the signal input / output units 20, 30, and 40 as in the first embodiment.

  As described above, according to the second embodiment of the present invention, the unique software 21a, 31a is provided for each signal input / output unit 20, 30, 40, and there are signal input / output units 20, 40 having the same function. Since the software is not stored in the central processing unit 10 for the second and subsequent overlapping units, there is an effect that the startup time of the monitoring control device 200 can be shortened.

  In the first and second embodiments of the present invention described above, the specific software 21a, 31a, 41a of the signal input / output units 20, 30, 40 is replaced by the internal memories 22, 32 of the signal input / output units 20, 30, 40. 42, and the specific software 21a (31a, 41a) may be stored in an external memory (not shown) of the central processing unit 10, but as described above, the signal input / output unit The signal input / output units 20, 30, 41 a are stored in the external memories 21, 31, 41 of the signal input / output units 20, 30, 40. It is easier to change the 40 unique software, and it is better to store the unique software 21a (31a, 41a) in the internal memory 11 of the central processing unit 10. From icon 12 faster access time to the memory, since the processing of the central processing unit 10 is accelerated preferred.

It is a figure which shows Embodiment 1 of this invention, and is a block diagram which shows the example of the schematic diagram of a monitoring control apparatus. It is a figure which shows Embodiment 2 of this invention, and is a block diagram which shows the example of the schematic diagram of a monitoring control apparatus.

Explanation of symbols

10 Central processing unit,
11 Internal memory,
11a software (for microcomputer 12),
11b General software,
12 microcomputer,
13 Display section,
14 connectors,
20 signal input / output unit,
21 External memory,
21a specific software,
22 internal memory,
22a Software (for signal input / output unit 20),
23 Microcomputer,
24 I / O,
25 Measurement data,
26 connectors,
27 load,
30 Signal input / output unit,
31 External memory,
31a specific software,
32 internal memory,
32a software (for signal input / output unit 30),
33 Microcomputer,
34 I / O,
35 Measurement data,
36 connectors,
37 load,
40 signal input / output section,
41 External memory,
41a specific software,
42 internal memory,
42a software (for signal input / output unit 40),
43 Microcomputer,
44 I / O,
45 Measurement data,
46 load,
100 monitoring and control device,
200 Monitoring and control device.

Claims (5)

Monitoring control provided with a plurality of signal input / output units storing specific software for processing the obtained measurement data in a memory, and a central processing unit for processing the measurement data input from the plurality of signal input / output units an apparatus, the specific software of the central processing unit and the the plurality of signal input-output unit is connected said plurality of signal input and output portions by the operation of the monitoring control device sequentially in the memory of the central processing unit When the software in the memory of the signal input / output unit stored and connected is different from the specific software stored in the memory of the central processing unit, the software in the memory of the connected signal input / output unit is stored in the memory of the central processing unit, neither the specific software stored in the memory by an instruction for stopping the monitoring control device the Rukoto deleted Monitoring controller according to symptoms.   The monitoring control apparatus according to claim 1, wherein the specific software is software that performs at least one process of displaying measurement data, monitoring an alarm, and setting a rated value of the measurement data.   3. The monitoring control apparatus according to claim 1, wherein when the connection between the central processing unit and the signal input / output unit is released, the specific software stored in the memory in the central processing unit is deleted. A characteristic monitoring and control device. In monitoring and control device according to any one of claims 1 to 3, the memory of the signal output unit is an external memory, characterized in that the memory of the central processing unit is an internal memory Supervisory control device. In monitoring and control device according to any one of claims 1 to 4, when the measurement data exceeds a predetermined value, to the signal input and output unit from the central processing unit, measurement data is within a predetermined value A supervisory control device that issues a load control command in a direction.

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