Human error prevention method for periodic test of nuclear power plant and computer device

Abstract

The invention provides a human error prevention method and a computer device for a periodic test of a nuclear power plant. A switching button and a test start button are additionally arranged on a DCS (Distributed Control System) two-layer man-machine interface; the human error prevention method for the periodic test of the nuclear power plant comprises the following steps: receiving a start instruction generated after a user clicks a test start button on a DCS (Distributed Control System) two-layer man-machine interface; and according to the starting instruction, switching the control loop from the original path to the assignment path starting test, and executing a periodic test. According to the application, the corresponding switching button and the test start button are additionally arranged on the second layer of the DCS, so that the technical problems that the human error risk is highest and human resources are consumed due to forced operation of a signal cooperatively executed by an instrument control specialty in a periodic test execution process are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of periodic testing of nuclear power plants, and specifically relates to a method and a computer device for preventing human errors in periodic testing of nuclear power plants. Background Art

[0002] The purpose of periodic testing of nuclear power plants is to verify whether the nuclear power plants are operating within the operating limits and conditions specified in the operating technical specifications, maintain the reliability of system equipment, and ensure that all faulty components or equipment below their standard performance are not hidden for a long time. During the periodic testing of each power plant, while checking the performance of the equipment, unexpected events may also occur due to factors such as equipment failure and human error. Among them, the signal forced operation performed by the instrumentation and control professionals in the process of periodic testing has the highest risk of human error. Signal forced operation is a temporary operation of artificially changing the signal forced at the DCS (Distributed Control System) level. It requires high skill levels and operational norms of the executors. In the process of performing forced operations on site, it not only consumes manpower and reduces test efficiency, but also has a greater risk of human error. Summary of the invention

[0003] In view of this, the present application is dedicated to providing a method and computer device for preventing human errors in periodic tests of nuclear power plants, by adding corresponding switching buttons and test start buttons on the second layer of DCS to solve the technical problem that the signal forced operation performed by the instrumentation and control professionals in the process of periodic tests has the highest risk of human errors and consumes human resources.

[0004] In a first aspect, the present application provides a method for preventing human errors in periodic tests of a nuclear power plant. A switch button and a test start button are added to the DCS second-layer human-machine interface. The method for preventing human errors in periodic tests of a nuclear power plant includes: receiving a start instruction generated after a user clicks a test start button on the DCS second-layer human-machine interface; according to the start instruction, switching the control loop from the "original path" to the "assignment path start test", and executing periodic tests.

[0005] In a specific implementation of the present application, a test end button is added to the DCS second-layer human-machine interface. According to the start instruction, the control loop is switched from the "original path" to the "assignment path start test", and the periodic test is performed. After that, the method for preventing human errors in the periodic test of the nuclear power plant also includes: receiving an end instruction from the user clicking the test end button on the DCS second-layer human-machine interface; and ending the periodic test according to the end instruction.

[0006] In a specific implementation of the present application, a test button is further provided on the DCS second-layer human-machine interface. A start instruction generated after a user clicks a test start button on the DCS second-layer human-machine interface is received. Previously, the method for preventing human errors in periodic tests of a nuclear power plant also includes: receiving a test instruction generated after a user clicks a test button on the DCS second-layer human-machine interface; and entering an interface containing a test start button and a test end button according to the test instruction.

[0007] In a specific implementation of the present application, a test authorization button is further provided on the DCS second-layer human-machine interface. A start instruction generated after a user clicks a test start button on the DCS second-layer human-machine interface is received. Previously, the method for preventing human errors in periodic tests of a nuclear power plant also includes: receiving an authorization instruction generated after a user clicks a test authorization button on the DCS second-layer human-machine interface.

[0008] According to the start instruction, the control loop is switched from the "original path" to the "assignment path start test", and periodic tests are performed, including: according to the authorization instruction and the start instruction, the control loop is switched from the "original path" to the "assignment path start test", and periodic tests are performed.

[0009] In a specific implementation of the present application, a test lock button is also added to the DCS second-layer human-machine interface. According to the start instruction, the control loop is switched from the "original path" to the "assignment path start test", and a periodic test is performed. After that, the method for preventing human errors in the periodic test of the nuclear power plant also includes: receiving a test lock instruction generated by the user clicking the test lock button on the DCS second-layer human-machine interface; and executing the test lock according to the test lock instruction.

[0010] In a specific implementation of the present application, a protection button is added to the DCS second-layer human-machine interface. A start instruction generated after a user clicks a test start button on the DCS second-layer human-machine interface is received. Previously, the method for preventing human errors in periodic tests of a nuclear power plant also includes: receiving a protection instruction generated after a user clicks a protection button on the DCS second-layer human-machine interface; and entering an interface containing a test authorization button and a test lock button according to the protection instruction.

[0011] In a specific implementation of the present application, the protection button and the test button are located on the same interface. The test start button, the test end button, the test authorization button and the test lock button are located on the same interface.

[0012] The second aspect of the present application provides a computer device, which includes a processor and a memory. The processor is used to execute the method for preventing human errors in periodic testing of nuclear power plants of the first aspect of the present application. The memory is used to store executable instructions of the processor.

[0013] The third aspect of the present application provides a computer-readable storage medium on which computer executable instructions are stored. When the executable instructions are executed by a processor, the method for preventing human errors in periodic testing of a nuclear power plant according to the first aspect of the present application is implemented.

[0014] The fourth aspect of the present application provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the method for preventing human errors in periodic testing of nuclear power plants of the first aspect of the present application.

[0015] The beneficial effects of the technical solution of the present application are: by adding corresponding switching buttons and test start buttons on the second layer of DCS, the user can quickly switch the solidified configuration logic by clicking the switching button, realize the control loop switching selection, and realize the periodic test execution by clicking the test start button, thereby changing the method of completing the signal simulation of the assignment path, using the solidified assignment logic to execute the periodic test, reducing the forced signal work of the DCS layer, realizing the periodic test execution without temporary forced operation of the DCS layer, reducing the number of temporary manual forced operations in the periodic test, reducing human forced intervention, that is, eliminating or reducing the risk of human error caused by manual forced operation on the DCS layer, and improving the safety of the test. In addition, the method for preventing human error in the periodic test of the nuclear power plant is convenient and fast to operate, reduces the key and error-prone steps of the periodic test of the nuclear power plant, greatly reduces the test execution time, can be completed by one operator, reduces human resource consumption, avoids excessive waste of manpower, and improves the efficiency of the execution of the periodic test of the nuclear power plant. In addition, the configuration content of the test plan can be implemented online, does not affect the existing system function layout and the current process control process, and the method for preventing human error in the periodic test of the nuclear power plant has the value of being promoted to the application of peer power plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a flow chart of a method for preventing human errors in periodic testing of a nuclear power plant provided by an embodiment of the present application.

[0017] Figure 2 Shown is an overall process control diagram of a method for preventing human errors in periodic testing of a nuclear power plant provided by an embodiment of the present application.

[0018] Figure 3 Shown is a schematic diagram of a DCS layer 2 operation screen provided in an embodiment of the present application.

[0019] Figure 4 Shown Figure 3 The following is a schematic diagram of the operation screen after clicking the button.

[0020] In the figure: ① Test authorization; ② Test lock; ③ Test start; ④ Test end; ⑤ Protection button; ⑥ Test button. Click button ⑤ to display buttons ① and ②; click button ⑥ to display buttons ③ and ④. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] At least one embodiment of the present application provides a method for preventing human error in periodic testing of a nuclear power plant, wherein a switch button and a test start button are added to the DCS second-layer human-machine interface. Figure 1 The method of preventing human errors in regular testing of the nuclear power plant includes the following steps.

[0023] S10: receiving a start instruction generated when the user clicks a test start button on the DCS layer 2 human-machine interface.

[0024] S20: According to the start instruction, the control loop is switched from the "original path" to the "assignment path start test" and a periodic test is performed.

[0025] According to the technical solution provided by the embodiment of the present application, by adding corresponding switching buttons and test start buttons on the second layer of DCS, the user can quickly switch the solidified configuration logic by clicking the corresponding buttons, realize the control loop switching selection, and realize the periodic test execution by clicking the test start button, thereby changing the method of completing the signal simulation of the assignment path, using the solidified assignment logic to execute the periodic test, reducing the forced signal work of the DCS layer, realizing the periodic test execution without temporary forced operation of the DCS layer, reducing the number of temporary manual forced operations in the periodic test, reducing human forced intervention, that is, eliminating or reducing the risk of human error caused by manual forced operation on the DCS layer, and improving the safety of the test. In addition, the method for preventing human error in the periodic test of the nuclear power plant is convenient and fast to operate, reduces the key and error-prone steps of the periodic test of the nuclear power plant, greatly reduces the test execution time, can be completed by one operator, reduces human resource consumption, avoids excessive waste of manpower, and improves the execution efficiency of the periodic test of the nuclear power plant. In addition, the configuration content of the test scheme can be implemented online, does not affect the existing system function layout and the current process control process, and the method for preventing human error in the periodic test of the nuclear power plant has the value of being promoted to the application of peer power plants.

[0026] In at least one embodiment of the present application, a test end button is also provided on the DCS second-layer human-machine interface. After the above S20, the method for preventing human errors in the periodic test of the nuclear power plant also includes S30 and S40.

[0027] S30: receiving an end instruction from the user clicking a test end button on the DCS layer 2 human-machine interface.

[0028] S40: End the periodic test according to the end instruction.

[0029] In the above embodiment, by adding a test end button on the DCS second-layer human-machine interface, the user can control the end of the periodic test by clicking the test end button according to actual needs.

[0030] In at least one embodiment of the present application, a protection button is also added to the DCS second-layer human-machine interface. Before the above S10, the method for preventing human errors in the regular test of the nuclear power plant also includes S1 and S2.

[0031] S1: Receive the protection command generated by the user clicking the protection button on the DCS layer 2 human-machine interface.

[0032] S2: Enter the interface containing the test authorization button and the test lock button according to the protection instruction.

[0033] For example, Figure 3 ⑤ is the protection button. The protection button is marked as 002KG. Click Figure 3 Press the middle protection button to enter Figure 4 interface, Figure 4 Among them, ① is the test authorization button, and the mark of the test authorization button is RELEASE ON; ② is the test locking button, and the mark of the test locking button is RELEASE OFF.

[0034] In at least one embodiment of the present application, a test authorization button is added to the DCS second-layer human-machine interface. Before the above S10, the method for preventing human errors in the regular test of the nuclear power plant also includes S3. S21 is a specific implementation of S20.

[0035] S3: Receive the authorization instruction generated by the user clicking the test authorization button on the DCS second-layer human-machine interface.

[0036] S21: According to the authorization instruction and the start instruction, the control loop is switched from the "original path" to the "assignment path start test", and the periodic test is performed.

[0037] For example, refer to Figures 2 to 4When the test plan is required to be executed, first obtain the login permission on the DCS second-layer human-machine interface screen to enter the test operation interface, execute the "test authorization", and then execute the "test start" instruction. At this time, the and logic of "test authorization" and "test start" is met, and the control loop is switched from the "original path" to the assigned path to start the test. The regular test begins to execute. After confirming that the test is completed, the "test end" operation is performed to clear the test status and switch the control loop to the "original path".

[0038] In the embodiment of the present application, by adding a test authorization button, double protection is provided for the switching of the control loop, thereby avoiding errors caused by a single operating error of the operator.

[0039] In at least one embodiment of the present application, a test button is added to the DCS second-layer human-machine interface, and after clicking the test button, an interface containing a test start button and a test end button is entered. Before the above S10, S4 and S5 are also included.

[0040] S4: Receive the test instruction generated by the user clicking the test button on the DCS second-layer human-machine interface.

[0041] S5: Enter the interface containing the test start button and the test end button according to the test instructions.

[0042] For example, Figure 3 ⑥ is the test button, the test button is marked as 003KG. Click the test button to enter Figure 4 The interface, Figure 4 Among them, ③ is the test start button, and the mark of the test start button is TEST ON. ④ is the test end button, and the mark of the test end button is TEST OFF.

[0043] Taking the water tank water level logic control test as an example, the water tank water level logic control test is used to check whether the water level sensor of the 001 tank of the equipment cooling water system and the water level alarm are working properly. This experiment requires manual forced locking of the condenser isolation valve protection off signal during the normal full-load operation of the unit to avoid false operation. The improved test plan adds a test button to the DCS second-layer human-machine interface, and then adds a test start button and a test end button respectively, that is, all the logical operations of the test instrument control can be completed on the operator human-machine interface.

[0044] In at least one embodiment of the present application, a test lock button is additionally provided on the DCS second-layer human-machine interface. After the above S20, the method for preventing human errors in the periodic test of the nuclear power plant also includes S6 and S7.

[0045] S6: receiving the test lock instruction generated by the user clicking the test lock button on the DCS second-layer human-machine interface.

[0046] S7: Execute the test lockout according to the test lockout instruction.

[0047] In some embodiments, the protection button and the test button are located on the same interface. The test start button, the test end button, the test authorization button and the test lock button are located on the same interface.

[0048] After the periodic test is completed, the user clicks the test lock button and the test end button in sequence to end the test.

[0049] In the above embodiment, for the confirmed periodic test items, according to the current design function of DCS, the periodic test control loop configuration logic is added, the DCS network link is used to design a general test plan, and the switching of the control loop is placed on the authorized operator operation interface.

[0050] The operation process of the method for preventing human errors in periodic testing of a nuclear power plant is described below with examples in conjunction with specific embodiments.

[0051] During the test, first obtain the login permission on the DCS second-layer human-machine interface screen to enter the test operation interface, click Figure 3 The ⑤ button will pop up on the right side of the interface Figure 4 Operation menu, click the test authorization button ①, and then click the test start button ③. The command will switch the control loop to the "assignment path to start the test". The regular test will begin. After confirming that the test is completed, click the test lock button ②, and then click the test end button ④ to perform the "test lock" and "test end" operations, clear the test status and switch the control loop to the "original path".

[0052] At least one embodiment of the present application further provides a computer device, which includes a processor and a memory. The processor is used to execute a method for preventing human errors in periodic testing of nuclear power plants provided in any of the above embodiments of the present application. The memory is used to store executable instructions of the processor, such as application programs. The number of processors can be one or more. The application program stored in the memory may include one or more modules, each corresponding to a set of instructions. In addition, the processor is configured to execute instructions to execute the calculation method of the above-mentioned method for preventing human errors in periodic testing of nuclear power plants.

[0053] The computer device may also include a power supply component configured to manage power of the computer device, a wired or wireless network interface configured to connect the computer device to a network, and an input / output (I / O) interface. The computer device may operate based on an operating system stored in the memory, such as Windows Server 2003. TM , Mac OSX TM , Unix TM , LinuxTM , FreeBSD TM or similar.

[0054] At least one embodiment of the present application further provides a computer-readable storage medium on which computer executable instructions are stored. When the executable instructions are executed by a processor, a method for preventing human errors in periodic testing of a nuclear power plant provided in any of the above embodiments of the present application is implemented.

[0055] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of the computer device, enables the computer device to execute the method for preventing human errors in the periodic test of a nuclear power plant. The method for preventing human errors in the periodic test of a nuclear power plant is executed by an agent program.

[0056] Those of ordinary skill in the art will appreciate that the algorithmic steps of each example described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0057] At least one embodiment of the present application further provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements a method for preventing human errors in periodic testing of a nuclear power plant provided in any of the above embodiments of the present application.

[0058] If the above functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a computer program product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method for preventing human errors in the periodic test of a nuclear power plant in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program check codes.

[0059] It should be noted that the combination of the various technical features in the embodiments of the present application is not limited to the combination described in the embodiments of the present application or the combination described in the specific embodiments, and all technical features described in the present application can be freely combined or combined in any way unless there is a contradiction between them.

[0060] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that the steps and elements that have been clearly identified are included, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0061] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for preventing human error in periodic testing of a nuclear power plant, characterized in that: A switch button and a test start button are added to the DCS second-layer human-machine interface. The methods for preventing human errors in regular tests of nuclear power plants include: Receive the start command generated by the user clicking the test start button on the DCS second-layer human-machine interface; According to the start command, the control loop is switched from the "original path" to the "assignment path start test" and the periodic test is performed.

2. A method for preventing human errors in periodic testing of a nuclear power plant according to claim 1, characterized in that: A test end button is also added to the DCS second-layer human-machine interface. According to the start command, the control loop is switched from the "original path" to the "assignment path start test" and the regular test is performed. After that, the human error prevention methods of the nuclear power plant regular test also include: Receive the end instruction from the user when he clicks the test end button on the DCS second-layer human-machine interface; end the periodic test according to the end instruction.

3. A method for preventing human errors in periodic testing of a nuclear power plant according to claim 2, characterized in that: A test button is also added to the DCS second-layer human-machine interface to receive the start command generated by the user clicking the test start button on the DCS second-layer human-machine interface. Previously, the methods for preventing human errors in regular tests of nuclear power plants also included: Receive the test instructions generated by the user clicking the test button on the DCS layer 2 human-machine interface; According to the test instructions, enter the interface containing the test start button and the test end button.

4. A method for preventing human errors in periodic testing of a nuclear power plant according to any one of claims 1 to 3, characterized in that: A test authorization button is also added to the DCS second-layer human-machine interface to receive the start command generated by the user clicking the test start button on the DCS second-layer human-machine interface. Previously, the methods for preventing human errors in regular tests of nuclear power plants also included: Receive the authorization instruction generated by the user clicking the test authorization button on the DCS layer 2 human-machine interface; Among them, according to the start instruction, the control loop is switched from the "original path" to the "assignment path start test", and the periodic test is performed, including: According to the authorization instruction and the start instruction, the control loop is switched from the "original path" to the "assignment path start test" and the periodic test is performed.

5. A method for preventing human errors in periodic testing of a nuclear power plant according to claim 4, characterized in that: A test lock button is also added to the DCS second-layer human-machine interface. According to the start command, the control loop is switched from the "original path" to the "assignment path start test" and the regular test is performed. After that, the human error prevention methods of the nuclear power plant regular test also include: Receive the test lock command generated by the user clicking the test lock button on the DCS second-layer human-machine interface; Execute test lockout according to the test lockout instruction.

6. A method for preventing human errors in periodic testing of a nuclear power plant according to claim 5, characterized in that: A protection button is also added to the DCS second-layer human-machine interface, which receives the start command generated by the user clicking the test start button on the DCS second-layer human-machine interface. Previously, the methods for preventing human errors in regular tests of nuclear power plants also included: Receive protection instructions generated by the user clicking the protection button on the DCS layer 2 human-machine interface; According to the protection instructions, enter the interface containing the test authorization button and the test lock button.

7. A method for preventing human errors in periodic testing of a nuclear power plant according to claim 6, characterized in that: If a protection button and a test button are added to the DCS second-layer human-machine interface, the protection button and the test button are located on the same interface, and the test start button, test end button, test authorization button and test lock button are located on the same interface.

8. A computer device, characterized in that: include: A processor, configured to execute a method for preventing human errors in periodic testing of a nuclear power plant according to any one of claims 1 to 7; as well as A memory is used to store executable instructions of the processor.

9. A computer-readable storage medium having computer executable instructions stored thereon, characterized in that: When the executable instructions are executed by the processor, a method for preventing human errors in periodic testing of a nuclear power plant according to any one of claims 1 to 7 is implemented.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, a method for preventing human errors in periodic testing of a nuclear power plant according to any one of claims 1 to 7 is implemented.

Images