CN109299008B - Automatic safety function testing system and method for nuclear power station control system - Google Patents
Automatic safety function testing system and method for nuclear power station control system Download PDFInfo
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- CN109299008B CN109299008B CN201811107248.2A CN201811107248A CN109299008B CN 109299008 B CN109299008 B CN 109299008B CN 201811107248 A CN201811107248 A CN 201811107248A CN 109299008 B CN109299008 B CN 109299008B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/3668—Software testing
- G06F11/3672—Test management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/3668—Software testing
- G06F11/3672—Test management
- G06F11/3684—Test management for test design, e.g. generating new test cases
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/3668—Software testing
- G06F11/3672—Test management
- G06F11/3692—Test management for test results analysis
Abstract
The invention relates to a system and a method for automatically testing the safety function of a control system of a nuclear power station, belongs to the technical field of control systems, and solves the problem of low testing efficiency in the safety function test of the control system of the nuclear power station in the prior art. An automatic test system for safety function of a nuclear power station control system comprises a test deployment platform and a test device, wherein the test device is communicated with each subsystem of a tested system to realize system-level integrated test; the test device includes: the data read-back module is used for reading back a safety logic intermediate logic point and test output data realized by the safety function of the tested system; and the data comparison module is used for comparing the read-back data with theoretical data output on the test case to obtain comparison result data. The remote automatic test of the safety function of the nuclear power station control system is realized, and the test quality and the test efficiency are improved.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a system and a method for automatically testing the safety function of a control system of a nuclear power station.
Background
The safety function of the nuclear power station control system can ensure that the control system accurately realizes shutdown, safety special equipment action and the like, guides the reactor to enter a safety state, and realizes the protection of the safety of the nuclear reactor under an accident condition.
A safety function implementation process of a nuclear power station control system relates to a plurality of cabinets in the control system, and the conventional control system safety function testing technology is characterized in that a plurality of fault working condition signals are combined and input to each subsystem of a DCS (distributed control system) through a manual operation signal generating device or device, the output of the control system is manually read and compared, and finally a test record is arranged.
The existing method for testing the safety function of the control system of the nuclear power station usually needs a plurality of persons to cooperate and complete, a specially-assigned person is configured to operate, an input signal is sent to a control system cabinet from a signal generating device or device through a hard wire, a large amount of hard wire work is needed, test data are compared and recorded manually, a test result is monitored and recorded manually, human error rate is high, a test report needs to be manually arranged and generated, and the automation degree is low.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide an automatic test system and method for safety function of a control system of a nuclear power plant, which realizes remote automatic test of safety function of the control system of the nuclear power plant, reduces human errors in safety function test of the control system, and improves test efficiency.
The invention provides an automatic test system for the safety function of a nuclear power station control system, which comprises a test device, a test system and a control system, wherein the test device is communicated with each subsystem of a tested system to realize system-level integrated test;
the test device includes:
the data sending module is used for directly sending the fault working condition data to each subsystem of the tested system according to the test case steps,
the data read-back module is used for reading back a safety logic intermediate logic point and test output data realized by the safety function of the tested system;
and the data comparison module is used for comparing the read-back data with theoretical data output on the test case to obtain comparison result data.
The beneficial effects of the above technical scheme are: by the scheme, the remote automatic test of the safety function of the control system of the nuclear power station is realized, human errors in the safety function test of the control system are reduced, and the test efficiency is improved.
Further, the system also comprises a test deployment platform, wherein the test deployment platform comprises a test record management module; the data comparison module is further configured to transmit comparison result data back to the test record management module, and the test record management module is configured to generate a test record table from the comparison result data.
The beneficial effects of the further technical scheme are as follows: the test record management module generates the comparison result data into a test record table, so that the problem of high error rate caused by manual arrangement of the comparison result data is avoided, time is saved, and the quality and efficiency of test records are improved.
Further, the test deployment platform further includes a test case management module, where the test case management module is used for test case management, and specifically includes: checking whether the format of the test case conforms to the established format, and checking whether an input point, a safety function logic intermediate point and an output point in the test case conform to the requirements of a control system; receiving the import of a test case which accords with a given format and meets the requirements of a control system; and issuing the test case to the test device.
The beneficial effects of the further technical scheme are as follows: by the scheme, the test case led into the test deployment platform is ensured to be in accordance with the established format and the requirements of the control system, and the issuing of the test case is realized.
Further, the test deployment platform further comprises a test strategy module, wherein the test strategy module is used for test strategy management, and comprises the steps of formulating a test strategy and issuing the test strategy to the test device.
Further, the test strategy specifically includes an execution sequence of the plurality of test cases, a number of test steps in the test process, a time interval of each test step, and whether to continue to execute the test.
Further, the test strategy module obtains the comparison result in the test record management module, and when the read-back data is inconsistent with the theoretical data, whether to continue to execute the test is judged according to a preset execution logic.
The test deployment platform further comprises a user management module, wherein the user management module is used for user management, and specifically comprises the steps that when a user logs in the test deployment platform, the user is required to input a user name and a password for identity authentication; addition, deletion and modification of user names and passwords.
The beneficial effects of the further technical scheme are as follows: the user management of the test deployment platform is realized through the scheme.
The invention also provides a method for automatically testing the safety function of the control system of the nuclear power station, which comprises the following steps:
the test deployment platform receives the import of the test case, and the test strategy module makes a test strategy;
sending the test case and the test strategy to a test device;
the testing device directly sends the fault working condition data to each subsystem of the tested system according to the testing strategy;
the test device reads back the safety function logic intermediate value and the test output data realized by the safety function of the tested system;
the test device compares the read-back data with theoretical data output on the test case, and transmits the comparison result back to the test deployment platform, and the test deployment platform generates a record table according to the test input data and the comparison result.
The beneficial effects of the above technical scheme are: by the aid of the scheme, remote automatic test of the safety function of the control system of the nuclear power station is realized, and test quality and test efficiency of the safety function test of the control system of the nuclear power station are improved.
Further, the step of accepting the import of the test case by the test deployment platform specifically includes: the test deployment platform checks whether the format of the test case conforms to the established format, whether the input point, the safety function logic intermediate point and the output point in the test case conform to the requirements of the control system, and receives the import of the test case conforming to the established format and conforming to the requirements of the control system.
Further, the execution sequence of the multiple test cases, the number of test steps in the test process, the time interval of each test step, and whether to continue executing the test.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a schematic diagram of a system according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of an output point, a safety function logic intermediate point, and an output point according to embodiment 1 of the present invention;
fig. 3 is a schematic flow chart of the method according to embodiment 2 of the present invention.
Reference numerals:
1-input point; 2-a security function logical intermediate point; 3-output point.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Example 1
The invention relates to a safety function automatic test system of a nuclear power station control system, in particular to a safety function automatic test system of a nuclear power station control system. The schematic diagram of the system is shown in fig. 1, and the system comprises:
the test deployment platform is used for user management, test case management, test strategy management and test record management, issues the test cases and the test strategies to the test device through the Ethernet and completes test result comparison.
The test deployment platform specifically comprises a user management module, a test deployment module and a test deployment module, wherein the user management module is used for user management, when a user logs in a system, the user is required to input a user name and a password for identity verification, after the user logs in, the user can perform operations such as test case management, test strategy management, test record management and the like, and in addition, the test deployment platform also provides functions of adding, deleting and modifying the user name and the password;
the test case management module is used for managing test cases and mainly importing the test cases in an Excel format written by a user, the fixed format of the test cases is arranged in the test case management module, before the test cases are imported, the test case format is checked by the test case management module to confirm whether the imported test cases conform to the established format, if so, an input point, a safety function logic intermediate point and an output point in the test cases conform to the requirements of a control system, and if so, the test cases are allowed to be imported; after the use case is imported, the module also provides a use case deleting function.
Fig. 2 is a schematic diagram of an output point, a safety function logic intermediate point, and an output point according to an embodiment of the present invention. The safety function logic intermediate point refers to a point of logic operation between a system input point and a system output point when the nuclear power station control system realizes the safety function.
The test strategy module is used for test strategy management and is mainly responsible for making an execution sequence of multiple test cases (if multiple test cases exist), making an execution range of test steps, making test steps in a test process, making a time interval of each test step and judging whether a test result fed back by the test device is inconsistent with a theoretical value or not to continue to execute the test;
the execution logic for continuing or not continuing the test (i.e. continuing the test or stopping the test) is set in the test strategy module by a worker before the test, and when the test result fed back by the test device is inconsistent with the theoretical value, the test strategy module executes the established execution logic.
The execution sequence of the test cases is generally according to the case import sequence, and the sequence can be customized according to the actual test condition.
And the test record management module is used for managing test records and receiving a data comparison result of the test device, wherein the data comparison result comprises a theoretical safety function logic intermediate value and an output value under test input and a safety function logic value and an output value of the instrument control system actually acquired by the test device. Generating a test record table from the comparison result data, wherein the test record table records the comparison result data of each step of test comparison module and the test time thereof; after the test is finished, the printer can be connected for printing, and the tester can finish the test record only by signing on the printed test record.
The test record management module has a test record query function, queries historical data on the test device according to the name of a test case when a click test history instruction is received, and can export the historical data to the EXCEL to print according to a preset format; the printed template is consistent with the imported case, and a user can edit the printing format together when writing the test case;
meanwhile, the module also provides a function of controlling system log query, when a log query instruction is received, a normal operation log and an error log in the test of the control system can be queried, the normal operation log comprises operation information of a user and automatic test starting information, and the error log comprises errors in the test process and errors in the test device in the operation process;
the testing device communicates with each subsystem of a tested system (namely a nuclear power station control system) through an industrial control system special protocol to carry out system-level integrated test, and specifically comprises,
the data sending module is used for directly sending fault working condition data, namely test input data, to each subsystem of the control system through a special protocol of the industrial control system according to the test case steps so as to carry out system-level integrated test;
the data read-back module is used for acquiring a safety function logic intermediate value and test output data realized by the safety function of the read-back control system through a special protocol of the industrial control system;
and the data comparison module is used for comparing the read-back data with theoretical data output on the test case to obtain comparison result data, and transmitting the comparison result data back to the test record management module of the test deployment platform through the Ethernet.
In the function test of the control system of the nuclear power station in the prior art, the control system is connected with a test device to completely hardwire signals, the values of the output signals are read back and recorded in a manual field, and the test result is confirmed and the record is generated through manual judgment. The invention can realize remote issuing test deployment, the test device can be simultaneously connected with a plurality of control system subsystems, hard wiring is eliminated, test data is automatically input and read, test results are automatically judged, and test reports are generated.
It should be noted that each module on the test deployment platform is implemented by adopting a VB programming language, each module on the test device is implemented by adopting LabView software development, and the test deployment platform and the test device communicate by adopting a TCP/IP protocol.
On one hand, the invention formulates a test strategy through a remote test deployment platform, issues a test case, continuously sends fault working condition data to the nuclear power control system according to the test strategy and the test case, tests the safety function of the nuclear power station control system, obtains the instrument control safety function logic intermediate value and the output value, automatically judges the test result, generates a test record and realizes the automatic test of the safety function of the nuclear power control system.
Example 2
Another embodiment of the present invention relates to a method for automatically testing a safety function of a nuclear power plant control system, a flow chart of the method is shown in fig. 2, and the method includes the following steps:
the test deployment platform receives the import of the test case, and the test strategy module makes a test strategy;
sending the test case and the test strategy to a test device;
the testing device directly sends the fault working condition data to each subsystem of the tested system according to the testing strategy;
the test device reads back the safety function logic intermediate value and the test output data realized by the safety function of the tested system;
the test device compares the read-back data with theoretical data output on the test case, and transmits the comparison result back to the test deployment platform, and the test deployment platform generates a record table according to the test input data and the comparison result.
The test deployment platform receiving the import of the test case specifically comprises the following steps: the test deployment platform checks whether the format of the test case conforms to the established format, whether the input point, the safety function logic intermediate point and the output point in the test case conform to the requirements of the control system, and receives the import of the test case conforming to the established format and conforming to the requirements of the control system.
The test strategy specifically comprises: the execution sequence of a plurality of test cases, the execution range of the test steps, the number of the test steps in the test process, the time interval of each test step, and whether to continue to execute the test.
In summary, the invention discloses an automatic test system and method for safety function of a nuclear power station control system, a test deployment platform carries out remote test deployment through an ethernet protocol, a test strategy and a test case are sent to a control device, the test device utilizes an industrial control system special protocol to communicate with each subsystem of the control system, test input data are directly sent to the control system without hard wiring, logic intermediate points and output data of the control system for realizing safety function are collected, the test deployment platform can automatically collect test data and compare the test data with the correctness to generate a test record, and therefore the quality and the efficiency of the function test of the nuclear power station control system are improved.
Those skilled in the art will appreciate that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium, to instruct related hardware. The computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (6)
1. An automatic test system for safety function of a nuclear power station control system is characterized by comprising a test device and a test deployment platform; the test device is communicated with each subsystem of the tested system to realize system-level integrated test; the test deployment platform is used for user management, test case management, test strategy management and test record management, issues the test cases and the test strategies to the test device through the Ethernet and completes test result comparison;
the test device includes:
the data sending module is used for directly sending the fault working condition data to each subsystem of the tested system according to the test case steps,
the data read-back module is used for reading back a safety logic intermediate logic point and test output data realized by the safety function of the tested system;
the data comparison module is used for comparing the read-back data with theoretical data output on the test case to obtain comparison result data;
the test deployment platform comprises:
the test case management module is used for test case management and specifically comprises: checking whether the format of the test case conforms to the established format, and checking whether an input point, a safety function logic intermediate point and an output point in the test case conform to the requirements of a control system; receiving the import of a test case which accords with a given format and meets the requirements of a control system; sending the test case to a test device;
the test strategy module is used for test strategy management, and comprises the steps of formulating a test strategy and sending the test strategy to a test device; and obtaining a comparison result in the test record management module, and judging whether to continue to execute the test according to a preset execution logic when the read-back data is inconsistent with the theoretical data.
2. The system of claim 1, further comprising a test deployment platform comprising a test record management module;
the data comparison module is further configured to transmit comparison result data back to the test record management module, and the test record management module is configured to generate a test record table from the comparison result data.
3. The system according to claim 1, wherein the test policy specifically includes an execution sequence of the plurality of test cases, a number of test steps in the test process, a time interval of each test step, and whether to continue to execute the test.
4. The system according to claim 1, wherein the test deployment platform further comprises a user management module, the user management module is configured to perform user management, and specifically includes that a user is required to input a user name and a password for authentication when the user logs in the test deployment platform; addition, deletion and modification of user names and passwords.
5. The method for testing the safety function of the control system of the nuclear power plant according to any one of claims 1 to 4, comprising the steps of:
the test deployment platform receives the import of the test case, and the test strategy module makes a test strategy; the test deployment platform receiving the import of the test case specifically comprises the following steps: the test deployment platform checks whether the format of the test case conforms to the established format, whether an input point, a safety function logic intermediate point and an output point in the test case conform to the requirements of the control system, and receives the import of the test case conforming to the established format and conforming to the requirements of the control system;
sending the test case and the test strategy to a test device;
the testing device directly sends the fault working condition data to each subsystem of the tested system according to the testing strategy;
the test device reads back the safety function logic intermediate value and the test output data realized by the safety function of the tested system;
the test device compares the read-back data with theoretical data output on the test case, and transmits the comparison result back to the test deployment platform, and the test deployment platform generates a record table according to the test input data and the comparison result.
6. The method according to claim 5, wherein the testing strategy specifically comprises: the execution sequence of a plurality of test cases, the number of test steps in the test process, the time interval of each test step, and whether to continue executing the test.
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