JP6969919B2 - Sensor loop accuracy test management system and sensor loop accuracy test management method - Google Patents

Description

An embodiment of the present invention relates to a sensor loop accuracy test management system and a sensor loop accuracy test management method for inspecting and managing the accuracy of a sensor loop to which a sensor is connected in a plant.

In plants such as thermal power, hydropower or nuclear power plants, monitoring / control devices are installed for the equipment to be monitored / controlled. This monitoring / control device inputs process data from various sensors installed in the plant and provides the plant status to the operator based on the input data.

Since the number of sensors in a large-scale plant is tens of thousands, it takes a long time to check the accuracy of the sensor and the accuracy of the sensor loop to which the sensor is connected in the plant at the time of construction or inspection. In the sensor loop accuracy test, workers are assigned to the central control room and the site, respectively, and when the worker at the site inputs a simulated value simulating the sensor detection value into the sensor loop as an input value, this is performed. The procedure is such that the input value is read and recorded by a worker in the main control room. Therefore, this sensor loop accuracy test requires workers at each of the site and the central control room.

In the conventional sensor loop accuracy test management system to improve this point, by installing a terminal that displays the input value input to the sensor loop at the site where the sensor is installed, the worker at the site can use the terminal. The output of the generator is adjusted while checking the input value and the judgment reference value on the display screen of, and the sensor loop test management server judges the quality of the input value based on the judgment reference value and conducts the test. Contributes to reduction.

That is, as shown in FIG. 12, in the conventional sensor loop accuracy test management system 100, the test display terminal 101 and the generator 102 are installed at the site. The worker 103 outputs a simulated value (voltage value, current value, etc.) corresponding to the detected value of the sensor 104 from the generator 102. This simulated value flows through the sensor loop 109 via the sensor 104, is digitized by the PIO device 105, is converted into an input value, and then the input value is passed through the process computer 106 to the sensor loop test management server in the central control room. It is transmitted to 107.

The sensor loop test management server 107 manages the sensor loop test for each of a plurality of test steps, and determines the consistency between the input value and the test conditions in each test step. This determination result is stored as a test result in the test condition / state DB 108 together with the input value and the determination reference value for each test step (see FIG. 14). Here, DB is an abbreviation for database.

As shown in FIG. 13, the test status display screen 110 is displayed on the test display terminal 101. By communicating with the sensor loop test management server 107, the web client existing in the test display terminal 101 displays the input value and the test result for each test step stored in the test condition / state DB 108 together with the judgment reference value on the test state display screen. Display on 110. In the worker 103 at the site, the output value of the generator 102, which is a simulated value of the detected value from the sensor 104, is tested in accordance with the progress of the test step displayed on the test status display screen 110 of the test display terminal 101. The generator 102 is operated to change the input value so that the value corresponds to the determination reference value of the step. This makes it possible to work alone.

Japanese Patent Publication No. 2012-533823

In the conventional sensor loop accuracy test management system described above, the worker 103 needs to manually operate the generator 102, and therefore needs to be proficient in the operation of the generator 102. Further, there is a problem that a human error is inherent in the operation of the generator 102 by the worker 103.

The embodiment of the present invention has been made in consideration of the above-mentioned circumstances, and can accurately operate the generator that outputs a simulated value corresponding to the detected value of the sensor to the sensor loop to which the sensor is connected. It is an object of the present invention to provide a sensor loop accuracy test management system that can surely prevent the occurrence of human error related to the operation of the generator.

The sensor loop accuracy test management system according to the embodiment of the present invention is a sensor loop accuracy test management system that inspects and manages the accuracy of the sensor loop to which the sensor is connected in the plant, and is a simulation corresponding to the detection value of the sensor. A generator that outputs a value to the sensor loop and a simulated value output from the generator to the sensor loop are input as input values, and this input value is compared with a judgment reference value to determine the quality of the input value. It has a sensor loop test management server, a test display terminal provided with a test status display function unit, an external device control function unit, and a web server function unit in the terminal, and the generator is configured to be connectable, and the test is performed. The status display function unit includes a web client for communicating with the sensor loop test management server, and the sensor loop test management determines the input value and the judgment result of determining the quality of the input value by starting the web client. It is acquired by communication with the server and displayed on the test status display screen together with the separately acquired determination reference value, and the external device control function unit simulates the generator which is an external device connected to the test display terminal. Controlling the value output operation and stopping the operation , the in-terminal web server function unit is connected to the test status display function unit and the external device control function unit, operates in the test display terminal, and operates in the test display terminal to perform the test state. The generator is configured to be able to send and receive information between the web client existing in the display function unit and the external device control function unit, and the web server function unit in the terminal is actually connected to the test display terminal. Compares the model of the above with the pre-acquired model data of the generator corresponding to the sensor connected to the sensor loop to be tested, and if both match, the test status display function unit It is characterized in that the generator is controlled via the in-terminal web server function unit and the external device control function unit by the operation of the web client.

Further, the sensor loop accuracy test management method according to the embodiment of the present invention is a sensor loop accuracy test management method for inspecting and managing the accuracy of the sensor loop to which the sensor is connected in the plant, and the generator is the sensor. A simulated value corresponding to the detected value is output to the sensor loop, the sensor loop test management server inputs the simulated value output from the generator to the sensor loop as an input value, and this input value is used as a judgment reference value. The quality of the input value is determined by comparison, and the test status display function unit of the test display terminal determines the quality of the input value and the quality of the input value by starting the web client. The external device control function unit of the test display terminal is an external device connected to the test display terminal, which is acquired by communication with a server and displayed on the test status display screen together with the separately acquired determination reference value. The web server function unit in the terminal of the test display terminal operates in the test display terminal to control the simulated value output operation of the generator and the operation stop thereof, and the web client existing in the test status display function unit. Information is transmitted and received between the external device control function unit and the external device control function unit, and the in- terminal web server function unit is connected to the model of the generator actually connected to the test display terminal and the sensor loop to be tested. Compared with the pre-acquired model data of the generator corresponding to the sensor, and when both match, the test status display function unit operates the web client to operate the web server in the terminal. functional unit and via the external device control function unit in which characterized that you control the generator.

According to the embodiment of the present invention, it is possible to accurately operate the generator that outputs a simulated value corresponding to the detected value of the sensor to the sensor loop to which the sensor is connected, and to generate a human error related to the operation of the generator. It can be surely prevented.

The system diagram which shows the plant monitoring / control apparatus to which the sensor loop accuracy test management system which concerns on 1st Embodiment is applied. The system diagram which shows the sensor loop accuracy test management system of FIG. An explanatory diagram showing a test state display screen displayed on the test display terminals of FIGS. 1 and 2. The test condition / state database of FIGS. 1 and 2 is shown, FIG. 1A is an explanatory diagram explaining a test condition data structure, FIG. 2B is an explanatory diagram explaining an apparatus data structure, and FIG. An explanatory diagram illustrating a flow of processing executed by the sensor loop accuracy test management system of FIG. 2. The system diagram which shows the sensor loop accuracy test management system which concerns on 2nd Embodiment. An explanatory diagram illustrating a flow of processing executed by the sensor loop accuracy test management system of FIG. The system diagram which shows the plant monitoring / control apparatus to which the sensor loop accuracy test management system which concerns on 3rd Embodiment is applied. The system diagram which shows the sensor loop accuracy test management system of FIG. An explanatory diagram showing a test state display screen displayed on the test display terminals of FIGS. 8 and 9. 8 and 9, the test condition / state database is shown, (A) is a test condition data structure, (B) is a test state data structure, and (C) is an explanatory diagram explaining an apparatus data structure. A system diagram showing a conventional sensor loop accuracy test management system. An explanatory diagram illustrating a procedure in which a worker operates a generator in FIG. 12. An explanatory diagram showing a test condition / state database of FIG. 12, (A) explaining a test condition data structure, and (B) explaining a test state data structure.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[A] First Embodiment (FIGS. 1 to 5)
FIG. 1 is a system diagram showing a plant monitoring / control device to which the sensor loop accuracy test management system according to the first embodiment is applied. Further, FIG. 2 is a system diagram showing the sensor loop accuracy test management system of FIG. In the plant monitoring / control device 10 shown in FIG. 1, a sensor 11 is installed in the equipment and piping constituting the plant, the detection value of the sensor 11 is digitized by the PIO device (process input / output device) 12, and the process computer 13 is used. The plant status is presented to the operator by processing and displaying it on the display terminal 14, and the plant is monitored and controlled.

Further, the sensor loop accuracy test management system 20 inspects and manages the accuracy of the sensor loop 15 to which the sensor 11 is connected, and includes a generator 21, a sensor loop test management server 22, and a test condition / state DB (DB is It is an abbreviation for a database. The same applies hereinafter) 23, and a test display terminal 24. Here, the sensor loop 15 to be tested by the sensor loop accuracy test management system 20 is a PIO device 12 or a process computer installed in the central control room 18 from the connection end with the sensor 11 installed at the site 17. It is a sensor loop up to 13 (for example, process computer 13).

As shown in FIG. 2, the generator 21 directly outputs a simulated value (current value, voltage value, etc.) corresponding to the detected value of the sensor 11 to the sensor loop 15, or outputs the simulated value (current value, voltage value, etc.) to the sensor loop 15 via the sensor 11. It is something to do. Since a generator 21 of a different type may be used for the generator 21 depending on the type of the sensor 11 (that is, the sensor ID of the sensor 11), a plurality of types of generators 21 are prepared. In the sensor loop test, a generator 21 of a type corresponding to the type of the sensor 11 connected to the target sensor loop 15 is selected by the worker 16, and the generator 21 is connected to the test display terminal 24 as described later. NS.

In the sensor loop test management server 22, the simulated value output from the generator 21 to the sensor loop 15 is digitized by the PIO device 12 and converted into an input value, and this input value is input via the process computer 13. NS. The sensor loop test management server 22 sets a plurality of test steps according to changes in simulated values output from the generator 21 corresponding to the corresponding sensor 11. Then, the sensor loop test management server 22 determines whether or not the input value is within the allowable range of the determination reference value (see FIG. 3) in each test step, and if it is within the allowable range, determines that it is “good”. If it is out of the permissible range, it is judged as "No". The judgment result of the quality of the input value, that is, the test result is stored in the test condition / state DB 23 together with the input value for each test step.

As shown in FIG. 4, the test condition / state DB 23 has a data structure of test conditions in a sensor loop test, a data structure of test states, and a data structure of a device used. The data structure of the test conditions includes the identification number (sensor ID) of the sensor 11 connected to the sensor loop 15 to be tested, the name of the sensor 11, the device type (model) of the generator 21, and the judgment reference value for each test step. , And the output value of the generator 21 for outputting the value corresponding to this determination reference value is stored for each of the plurality of sensor loop tests. Further, in the data structure of the test state, the input value and the test result for each test step are stored for each of the plurality of sensor loop tests. Further, the data structure of the device used stores detailed information of the device (for example, a generator) used in the sensor loop test.

As shown in FIG. 2, the test display terminal 24 includes a test status display function unit 25, an external device control function unit 26, and an in-terminal web server function unit 27, and the generator 21 can be connected by, for example, a USB interface or the like. Will be done. Of these, the external device control function unit 26 recognizes the connection state of the generator 21 to the test display terminal 24, acquires the model from the generator 21 connected to the test display terminal 24, and further obtains the model of the generator 21. 21 is controlled.

The test status display function unit 25 communicates with the sensor loop test management server 22, displays the test status display screen 30 (FIG. 3) on the test display terminal 24, and further controls the in-terminal web server function unit 27 and the external device. It has a web client for controlling the generator 21 via the functional unit 26, and operates by activating the web client. That is, the web client of the test state display function unit 25 acquires the test condition data (including the determination reference value) stored in the test condition / state DB 23 by communicating with the sensor loop test management server 22. Further, in the test condition / state DB 23, the input value acquired by the sensor loop test management server 22 and the judgment result (test result) determined by the sensor loop test management server 22 are stored in the test state data. The web client of the status display function unit 25 acquires this test status data by communicating with the sensor loop test management server 22.

The web client of the test status display function unit 25 displays the determination reference value, the input value, and the test result acquired by communication with the sensor loop test management server 22 on the test status display screen 30 (FIG. 3) for each test step. Here, the display of the test status display screen 30 on the test display terminal 24 is a sensor loop to be tested on the sensor selection screen (not shown) displayed immediately after the web client is started on the test display terminal 24. It is displayed by the display request notification of the test status display screen output when the sensor 11 connected to the 15 is selected.

Further, the web client existing in the test status display function unit 25 cannot generally send / receive information to / from the external device control function unit 26 operating inside the test display terminal 24 by the sandbox mechanism. However, in the present embodiment, the test display terminal 24 includes an in-terminal web server function unit 27 that is connected to the test status display function unit 25 and the external device control function unit 26 and operates in the test display terminal 24. The in-terminal web server function unit 27 enables the web client existing in the test status display function unit 25 to send and receive information to and from the external device control function unit 26, via the external device control function unit 26. The connection state of the generator 21 is acquired, and the generator 21 is configured to be controllable.

The generator 21 is controlled as follows. That is, the web client of the test status display function unit 25 acquires the test progress notification (judgment reference value, input value, and test result) for each test step by communicating with the sensor loop test management server 22. Then, this web client sends an external device control notification for outputting the generator output value (see FIG. 4) corresponding to the determination reference value of the next unfinished test step from the generator 21. The generator 21 is controlled by transmitting this external device control notification to the generator 21 via the external device control function unit 26.

Further, the connection state of the generator 21 is acquired as follows. That is, the external device control function unit 26 is connected to the generator connection status notification indicating "continuation of external device connection" when the generator 21 is connected to the test display terminal 27, and the generator 21 is connected to the test display terminal 24. When not, the generator connection status notification indicating "external device not connected" is transmitted to the web client of the test status display function unit 25, respectively. By this generator connection status notification, the web client of the test status display function unit 25 acquires and recognizes the connection status of the generator 21.

The in-terminal web server function unit 27 contributes to the control of the generator 21 by the web client of the test status display function unit 25 described above, and also determines the suitability of the model of the generator 21. That is, the in-terminal web server function unit 27 includes the external device connection request notification (test condition data and test state data of the sensor 11 connected to the sensor loop 15 to be tested) from the web client of the test status display function unit 25. ) Is received, this external device connection request notification is transmitted to the external device control function unit 26. At this time, the external device control function unit 26 sends a generator type acquisition request notification to the generator 21, so that the generator 21 actually connected to the test display terminal 24 owns the external device control function unit 26. The model is transmitted, and the in-terminal web server function unit 27 receives the model of the generator 21 via the external device control function unit 26. As a result, the in-terminal web server function unit 27 acquires in advance the model of the generator 21 actually connected to the test display terminal 24 and the generator 21 corresponding to the sensor 11 connected to the sensor loop 15 to be tested. Judgment is made by comparing with the given type data (that is, the generator device type in the test condition data included in the generator type request notification).

The in-terminal web server function unit 27 transmits a connection completion notification when the model of the generator 21 and the model data match, and a connection failure notification when the model data does not match, to the test status display function unit 25. .. The web client of the test status display function unit 25 transmits an external device control notification to the terminal web server function unit 27 and the external device control function unit 26 only when the connection completion notification is received from the terminal in-terminal web server function unit 27. Then, the generator 21 is controlled via the web server function unit 27 in the terminal and the external device control function unit 26.

For the control of the generator 21 by the external device control function unit 26, in addition to the control based on the external device control notification from the web client of the test status display function unit 25, the generator 21 based on the timeout determination of the external device control function unit 26 Also includes stop control of. That is, the external device control function unit 26 determines a time-out when the external device control notification for controlling the generator 21 transmitted from the web client of the test status display function unit 25 is stagnant for a predetermined time and cannot be received. To carry out. The external device control function unit 26 stops the control of the generator 21 by this time-out determination, and stops the operation of the generator 21.

The operation of the sensor loop accuracy test management system 20 of the first embodiment configured as described above will be described mainly with reference to FIG.
The worker 16 activates a web client existing in the test status display function unit 25 of the test display terminal 24, and causes the test display terminal 24 to display a sensor selection screen (not shown). When the worker 16 selects and specifies the sensor ID of the sensor 11 connected to the sensor loop 15 to be tested on the sensor selection screen, a display request notification 35 for displaying the test status display screen 30 is transmitted. Then, the web client of the test status display function unit 25 causes the test display terminal 24 to display the test status display screen 30 for the sensor loop 15 test connected to the sensor 11 of the corresponding sensor ID.

The web client of the test status display function unit 25 transmits the test condition / status data acquisition request notification 36 to the sensor loop test management server 22 substantially at the same time as the display of the test status display screen 30 or after the display thereof, thereby this sensor. The test condition / state data notification 37 including the test condition data and the test state data is acquired from the test condition / state DB 23 via the loop test management server 22.

Next, the generator 21 of the type corresponding to the sensor 11 connected to the sensor loop 15 to be tested is connected to the test display terminal 24 by the worker 16. After that, when the generator connection button 31 of the test status display screen 30 displayed on the test display terminal 24 is operated (for example, a click operation) by the worker 16, the web client of the test status display function unit 25 performs a sensor loop test. After confirming that is in the untested state, the external device connection request notification 38 (including the test condition data and the test state data of the sensor 11 connected to the sensor loop 15 to be tested) is sent to the in-terminal web server function. It is transmitted to the external device control function unit 26 via the unit 27. Upon receiving the external device connection request notification 38, the external device control function unit 26 transmits a generator type request notification 39 requesting the model to the generator 21.

Upon receiving the generator type request notification 39, the generator 21 transmits a generator type notification 40 representing its own model to the in-terminal web server function unit 27 via the external device control function unit 26. The in-terminal web server function unit 27 has acquired the model of the generator 21 actually connected to the test display terminal 24 acquired by receiving the generator type notification 40, and the sensor 11 connected to the sensor loop 15 to be tested. The model data of the generator 21 corresponding to the above (that is, the generator device type (see FIG. 4) of the test condition data included in the external device connection request notification 38 is compared. The in-terminal web server function unit 27 has this. By comparison, if the model of the generator 21 and the model data match, the connection completion notification 41 is transmitted, and if they do not match, the connection failure notification 42 is transmitted to the test status display function unit 25. The connection completion notification 41 is received. The web client of the test status display function unit 25 changes the connection status display 32 of the test status display screen 30 shown in FIG. 3 from “not connected” to “connected”.

Next, when the test start button 33 on the test status display screen 30 displayed on the test display terminal 24 is operated (for example, a click operation) by the operator 16, a repetitive process of sequentially executing the test steps 1 to 9 is actually performed. NS. In this iterative process, the test status display screen 30 is displayed by the web client of the test status display function unit 25, the generator 21 is connected to the test display terminal 24, and the test step proceeds. Continued when in state.

This iterative process is executed starting from the sensor loop test management server 22. That is, the sensor loop test management server 22 determines by comparing the input value output from the generator 21 and digitized with the determination standard at each test step, and determines the determination result (that is, the test result), the input value, and the input value. The test progress notification 43 including the determination reference value is transmitted to the web client of the test status display function unit 25 for each test step. Then, the web client of the test status display function unit 25 updates the display content of the test status display screen 30, and the generator output value corresponding to the judgment reference value of the next unfinished test step (see FIG. 4). Is transmitted from the external device controller notification 44 for outputting from the generator 21. The external device control notification 44 is transmitted to the generator 21 via the in-terminal web server function unit 27 and the external device control function unit 26.

Further, in the above-mentioned iterative process, the external device control function unit 26 sends the external device connection status notification 45 indicating the state of whether or not the generator 21 is connected to the test display terminal 24, to the in-terminal web server function unit 27. It is transmitted to the web client of the test status display function unit 25 via. The content of the external device connection status notification 45 is "continuation of external device connection" when the generator 21 is connected to the test display terminal 24, and "external" when the generator 21 is not connected to the test display terminal 24. The device is not connected. "

Upon receiving the external device connection status notification 45, the web client of the test status display function unit 25 transmits the external device control notification 44 when the external device connection status notification 45 including the continuation of the external device connection is received. Further, when the web client of the test status display function unit 25 receives the external device connection status notification 45 whose content is that the external device is not connected, the web client stops the external device control notification 44 and ends the above-mentioned repetitive processing.

If the close button 34 of the test status display screen 30 is erroneously operated (for example, a click operation) during the above-mentioned repetitive processing, the test status display screen 30 is closed, and the web client of the test status display function unit 25 is stopped to be external. The device control notification 44 is no longer transmitted. Further, if the communication between the web client of the test status display function unit 25 and the sensor loop test management server 22 becomes unstable or cut off during the above-mentioned iterative process, the sensor loop test management server 22 displays the test status. Since the test progress notification 43 is not transmitted to the function unit 25, the external device control notification 44 is not transmitted from the web client of the test status display function unit 25.

In this way, when the external device control notification 44 is not transmitted from the web client of the test status display function unit 25, and therefore the external device control notification 44 is stagnant for a predetermined time and is not received by the external device control function unit 26. , The external device control function unit 26 determines the timeout. Based on this time-out determination, the external device control function unit 26 sends an external device control stop notification 46 for stopping the control of the generator 21 to the generator 21 to stop the output from the generator 21. Further, the external device control function unit 26 transitions to the external device non-connected state by the time-out determination.

The test status of the sensor loop 15 carried out as described above can also be confirmed from the maker office 50 and the customer office 51 of the plant maker shown in FIG. A test display terminal 52 capable of communicating with the sensor loop test management server 22 is installed in the maker office 50 and the customer office 51, and the administrator 53 of the maker office 50 and the customer of the customer office 51 are installed. 54 can confirm the progress of the sensor loop test by visually observing the test status display screen similar to the test status display screen 30 (FIG. 3) displayed on the test display terminal 52. Of these, the manager 53 of the manufacturer's office 50 may be able to register or change the test condition data (see FIG. 4) in the sensor loop test.

Since it is configured as described above, according to the first embodiment, the following effects (1) to (3) are obtained.
(1) As shown in FIG. 2, the test display terminal 24 includes a test status display function unit 25, an external device control function unit 26, and an in-terminal web server function unit 27. Of these, the in-terminal web server function unit 27 that operates in the test display terminal 24 exists in the test status display function unit 25 and has a web client for communicating with the sensor loop test management server 22 and a test display terminal 24. It is configured to be able to send and receive information to and from the external device control function unit 26 that controls the generator 21 connected to the above. Therefore, the web client in the test status display function unit 25 can control the generator 21 via the web server function unit 27 in the terminal and the external device control function unit 26. Therefore, the operation of the generator 21 can be performed more accurately than when the generator 21 is manually operated, and the occurrence of a human error related to the operation of the generator 21 can be reliably prevented.

(2) The in-terminal web server function unit 27 of the test display terminal 24 is actually connected to the test display terminal 24 before the generator 21 outputs a simulated value of the detected value of the sensor 11 in the sensor loop test. The type of the device 21 and the type data acquired in advance of the generator 21 corresponding to the sensor 11 connected to the sensor loop 15 to be tested (that is, the generator of the test state data stored in the test condition / state database 23). Compare with device type).

Only when it is determined by the in-terminal web server function unit 27 that the model of the generator 21 and the model data match, the web client of the test status display function unit 25 can use the in-terminal web server function unit 27 and the in-terminal web server function unit 27. The external device control notification 44 is notified to the generator 21 via the external device control function unit 26 to control the generator 21. As a result, it is possible to prevent the simulated value of the detected value of the sensor 11 from being output from the generator 21 in which the model and the model data do not match, so that the sensor loop 15 is damaged by, for example, an excessive simulated value. It can be prevented in advance.

(3) As shown in FIGS. 2, 3 and 5, during the repeated processing of the sensor loop test, the close button 34 of the test status display screen 30 of the test display terminal 24 is erroneously operated to display the test status display screen. When 30 is closed and the web client of the test status display function unit 25 is stopped, or when the communication between the web client of the test status display function unit 25 and the sensor loop test management server 22 becomes unstable or cut off, the sensor loop The test status display function unit 25 may not be able to receive the test progress notification 43 from the test management server 22. In these cases, the external device control notification 44 will not be transmitted from the web client of the test status display function unit 25. When the external device control function unit 26 is stagnant for a predetermined time and cannot be received, the external device control function unit 26 performs a time-out determination and transmits the external device control stop notification 46 to the generator 21. Stop the operation of. As a result, it is possible to prevent the generator 21 from being in the continuous output state for a long time and to ensure safety.

[B] Second embodiment (FIGS. 6 and 17)
FIG. 6 is a system diagram showing a sensor loop accuracy test management system according to the second embodiment. Further, FIG. 7 is an explanatory diagram illustrating a flow of processing executed by the sensor loop accuracy test management system of FIG. In this second embodiment, the same parts as those in the first embodiment are designated by the same reference numerals as those in the first embodiment to simplify or omit the description.

The difference between the sensor loop accuracy test management system 60 of the second embodiment and the first embodiment is that the in-terminal web server function unit with the reconnection management function is used instead of the in-terminal web server function unit 27 of the first embodiment. 61 is the point used.

That is, the in-terminal web server function unit 61 with the reconnection management function controls the generator 21 from the web client of the test status display function unit 25 to the external device control function unit 26 while the sensor loop test is in progress. If the device control notification 44 is no longer transmitted and the sensor loop test is still in progress, a predetermined operation (for example, operation of the generator connection button 31) is performed, so that the web of the test status display function unit 25 is performed. The external device control notification 44 for reconnecting the client and the external device control function unit 26 to continue the test from the incomplete test part (test step) is sent from the web client of the test status display function unit 25 to the external device. It is configured to be transmitted to the control function unit 26.

The function of the in-terminal web server function unit 61 with the reconnection management function will be further described with reference to FIG. 7. When the generator connection button 31 of the test status display screen 30 displayed on the test display terminal 24 is operated (for example, a click operation), the web client of the test status display function unit 25 is in the untested state of the sensor loop test. For example, as in the first embodiment, the external device connection request notification 38 (including the test condition data and the test state data of the sensor 11 connected to the sensor loop 15 to be tested) is sent to the in-terminal web server function unit 61. It is transmitted to the external device control function unit 26 via the device. At this time, the generator type request notification 39 is transmitted from the external device control function unit 26 to the generator 21, and the generator type notification 40 is transmitted from the generator 21 to the generator 21 via the external device control function unit 26 and the in-terminal web server function unit 61. Will be sent to.

As a result, the in-terminal web server function unit 61, like the in-terminal web server function unit 27 of the first embodiment, has the model of the generator 21 actually connected to the test display terminal 24 and the generation acquired in advance. It is determined whether or not the model data of the device 21 (the generator device type of the above-mentioned test condition data (see FIG. 4)) matches, and the connection completion notification 41 or the connection failure notification 42 is sent to the test status display function unit. Send to 25 web clients.

Further, while the sensor loop test is in progress, the communication between the web client of the test status display function unit 25 and the sensor loop test management server 22 becomes unstable or cut off, or the test status display screen 30 of the test display terminal 24 is closed. The external device control notification 44 may not be transmitted from the web client of the test status display function unit 25 to the external device control function unit 26 because the button 34 is erroneously closed by the operation of the button 34. Even in such a case, the sensor loop test may be in progress without the time-out determination by the external device control function unit 26 being performed yet.

In such a case, the test status display screen 30 is displayed again as necessary, and when the generator connection button 31 of the test status display screen 30 is operated (for example, a click operation), the in-terminal web server function The unit 61 enables the web client of the test status display function unit 25 to be reconnected to the external device control function unit 26, so that the web client of the test status display function unit 25 can reconnect the external device reconnection request notification 62 (test). The test condition data and the test state data of the sensor 11 connected to the target sensor loop 15) can be transmitted to the external device control function unit 26 via the server function unit 61 in the terminal.

By transmitting the external device reconnection request notification 62, the in-terminal web server function unit 61 has the model of the generator 21 possessed by the external device control function unit 26 and the model data of the generator 21 acquired in advance (the above-mentioned test condition data). Check compatibility with the generator device type). Then, after the transmission of the external device reconnection request notification 62, the web client of the test status display function unit 25 sends the external device control notification 44 for continuing the test from the incomplete test step, and the in-terminal server function unit 61. It is transmitted to the external device control function unit 26 via the system.

Since it is configured as described above, the second embodiment also has the same effect as the effects (1) to (3) of the first embodiment, and also has the following effect (4).
(4) If the sensor loop test is still in progress even when the external device control notification 44 is no longer transmitted to the test display terminal 24 from the web client of the test status display function unit 25 to the external device control function unit 26. For example, an in-terminal web server function unit 61 with a reconnection management function that enables reconnection between the web client of the test status display function unit 25 and the external device control function unit 26 is provided. Therefore, while the sensor loop test is in progress, the communication between the web client of the test status display function unit 25 and the sensor loop test management server 22 becomes unstable or cut off, or the test status display screen 30 of the test display terminal 24 is displayed. Even if the external device control notification 44 is no longer transmitted from the web client of the test status display function unit 25 to the external device control function unit 26 due to accidental closing due to the operation of the close button 34, the external device control If the sensor loop test is in progress without the time-out determination by the function unit 26 being performed, the in-terminal web server function unit 61 may use the web client of the test status display function unit 25 and the external device control function unit 26. Can be reconnected.

As a result, the web client of the test status display function unit 25 sends an external device control notification 44 for continuing the test from the incomplete test step via the in-terminal web server function unit 61 to the external device control function unit 26. The test status display screen 30 may be accidentally closed while the sensor loop test is in progress, or the communication between the web client of the test status display function unit 25 and the sensor loop test management server 22 may become unstable. It is possible to prevent the situation where the sensor loop test is restarted from the beginning even if it becomes or is cut off.

[C] Third Embodiment (FIGS. 8 to 11)
FIG. 8 is a system diagram showing a plant monitoring / control device to which the sensor loop accuracy test management system according to the third embodiment is applied. Further, FIG. 9 is a system diagram showing the sensor loop accuracy test management system of FIG. In this third embodiment, the same parts as those in the first and second embodiments are designated by the same reference numerals as those in the first and second embodiments to simplify or omit the description.

As shown in FIGS. 8 and 9, the sensor loop accuracy test management system 70 of the third embodiment differs from the second embodiment in that the test display terminal 24 has a generator 21 and a test environment (for example, temperature, etc.). Peripheral measuring instruments 71 capable of measuring humidity, noise level, etc.) can be connected, and the test display terminal 24 is a peripheral measuring instrument in addition to the first external device control function unit 26 that controls the generator 21. It is a point provided with a second external device control function unit 72 that controls 71. In this third embodiment, the external device control function unit of the first and second embodiments is referred to as a first external device control function unit.

The in-terminal web server function unit 61 with the reconnection management function is located between the web client of the test status display function unit 25 and the first external device control function unit 26, and between the web client of the test status display function unit 25 and the second. Information can be transmitted and received to and from the external device control function unit 72. Therefore, the web client of the test status display function unit 25 transmits a signal for operating the peripheral measuring instrument 71 at the start of the sensor loop test to the second external device control function unit 72 via the in-terminal web server function unit 61. do. Further, the web client of the test status display function unit 25 inputs the measurement data (for example, data such as temperature, humidity, noise level, etc.) measured by the peripheral measuring instrument 71 during the sensor loop test to the second external device control function unit 72. And, it is received and acquired via the web server function unit 61 in the terminal.

The measurement data acquired by the web client of the test status display function unit 25 is displayed on the test status display screen 30 as shown in FIG. Further, the measurement data acquired by the web client of the test status display function unit 25 is transmitted to the sensor loop test management server 25, and the sensor loop test is performed in the test condition / status DB 23 connected to the sensor loop test management server 22. It is recorded together with the test information (judgment standard value, input value, test result). As shown in FIG. 11, the measurement data by the peripheral measuring instrument 71 is recorded in the test state data of the test condition / state DB 23, and the individual device type (model) of the peripheral measuring instrument 71 is the test of the test condition / state DB 23. Recorded in condition data and device data.

Since it is configured as described above, according to the third embodiment, in addition to the same effects as the effects (1) to (4) of the first and second embodiments, the following effect (5) is obtained. Play.
(5) The peripheral measuring instrument 71 connected to the test display terminal 24 is controlled by the second external device control function unit 72, and the in-terminal web server function unit 61 controls the web client of the test status display function unit 25 and the second external device. It is configured to be able to send and receive information to and from the device control function unit 72. Therefore, the measurement data by the peripheral measuring instrument 71 is sent to the test condition / state DB 23 via the second external device control function unit 72, the in-terminal web server function unit 61, the test status display function unit 25, and the sensor loop test management server 22. Can be recorded with the test information of the sensor loop test. As a result, it is possible to construct an advanced sensor loop accuracy test management system 70 that can accurately evaluate the test information of the sensor loop test using the test environment data measured by the peripheral measuring instrument 71.

Although some embodiments of the present invention have been described above, 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 embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention, and their replacements and changes can be made. Is included in the scope and gist of the invention, as well as the invention described in the claims and the equivalent scope thereof.

20 ... Sensor loop accuracy test management system, 21 ... Generator, 22 ... Sensor loop test management server, 23 ... Test condition / status DB, 24 ... Test display terminal, 25 ... Test status display function unit, 26 ... External device control function Unit, 27 ... In-terminal web server function unit, 30 ... Test status display screen, 60 ... Sensor loop accuracy test management system, 61 ... In-terminal web server function unit, 70 ... Sensor loop accuracy test management system, 71 ... Peripheral measuring instrument , 72 ... Second external device control function unit (other external device control function unit).

Claims (5)

It is a sensor loop accuracy test management system that inspects and manages the accuracy of the sensor loop to which the sensor is connected in the plant.
A generator that outputs a simulated value corresponding to the detected value of the sensor to the sensor loop, and a generator.
A sensor loop test management server that inputs a simulated value output from the generator to the sensor loop as an input value and compares this input value with a judgment reference value to determine the quality of the input value.
It has a test status display function unit, an external device control function unit, an in-terminal web server function unit, and a test display terminal configured to be connectable to the generator.
The test status display function unit includes a web client for communicating with the sensor loop test management server, and by activating the web client, the input value and a determination result of determining the quality of the input value are determined by the sensor loop. Obtained by communication with the test management server and displayed on the test status display screen together with the separately obtained judgment reference value.
The external device control function unit controls the simulated value output operation of the generator, which is an external device connected to the test display terminal, and the operation stop thereof.
The in-terminal web server function unit is connected to the test status display function unit and the external device control function unit, operates in the test display terminal, and has the web client and the web client existing in the test status display function unit. It is configured to be able to send and receive information to and from the external device control function unit .
The model of the generator actually connected to the test display terminal and the model of the generator corresponding to the sensor connected to the sensor loop to be tested by the in-terminal web server function unit. When the data are compared with each other and the two are in agreement, the test status display function unit controls the generator via the in-terminal web server function unit and the external device control function unit by the operation of the web client. A sensor loop accuracy test management system characterized by being configured to control. The external device control function unit performs a time-out determination when the external device control notification for controlling the generator, which is transmitted from the web client existing in the test status display function unit, is not received for a predetermined time. sensor loop precision test management system according to claim 1, characterized in that stops control of the generator, which is configured so as to stop the operation of the generator. The in-terminal web server function unit of the test display terminal is an in-terminal web server function unit with a reconnection management function.
This in-terminal web server function unit with reconnection management function sends an external device control notification for controlling the generator from the web client of the test status display function unit to the external device control function unit while the sensor loop test is in progress. If the sensor loop test is still in progress, the web client of the test status display function unit and the external device control function unit are reconnected by performing a predetermined operation. 1 or 2 , wherein the external device control notification for continuing the test from the incomplete test portion is configured to be transmitted from the web client to the external device control function unit. Described sensor loop accuracy test management system. In addition to the generator, the test display terminal is provided with a peripheral measuring instrument that measures the test environment so that it can be connected. In addition to the external device control function unit that controls the generator , the peripheral measuring instrument can be measured. Other external device control function units that control the operation are provided,
The in-terminal web server function unit of the test display terminal is configured to be capable of transmitting and receiving information between the web client existing in the test status display function unit of the test display terminal and the other external device control function unit.
The measurement data by the peripheral measuring instrument is transmitted to the sensor loop test management server by the web client, and is configured to be recorded together with the test information of the sensor loop test in the database connected to the sensor loop test management server. The sensor loop accuracy test management system according to any one of claims 1 to 3. It is a sensor loop accuracy test management method that inspects and manages the accuracy of the sensor loop to which the sensor is connected in the plant.
The generator outputs a simulated value corresponding to the detected value of the sensor to the sensor loop.
The sensor loop test management server inputs a simulated value output from the generator to the sensor loop as an input value, compares this input value with a judgment reference value, and determines whether the input value is good or bad.
The test status display function unit of the test display terminal acquires the input value and the judgment result of determining the quality of the input value by communication with the sensor loop test management server by starting the web client, and separately acquires the input value. Displayed on the test status display screen together with the judgment reference value,
The external device control function unit of the test display terminal controls the simulated value output operation of the generator, which is an external device connected to the test display terminal, and the operation stop thereof.
The in-terminal web server function unit of the test display terminal operates in the test display terminal to transmit and receive information between the web client existing in the test status display function unit and the external device control function unit. ,
The model of the generator actually connected to the test display terminal and the model of the generator corresponding to the sensor connected to the sensor loop to be tested by the in-terminal web server function unit. When the data are compared and the two match, the test status display function unit operates the web client to operate the generator via the in-terminal web server function unit and the external device control function unit. control to the sensor loop accuracy test management method comprising Rukoto.

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