Intelligent test system

Abstract

The invention discloses an intelligent testing system, and relates to the technical field of automatic testing, and the system comprises an upper computer, an intelligent I / O module, and a switching base matched with the intelligent I / O module. The upper computer imports, stores and executes the test case through the case management module, and generates a test instruction; according to the communication mode and the communication protocol set by the communication configuration module, the test instruction is issued to the intelligent I / O module to generate a test excitation signal; the intelligent I / O module transmits the test excitation signal to the to-be-tested system to generate a test feedback signal, and the test feedback signal is transmitted to the upper computer through the intelligent I / O module; and the upper computer generates a test result according to the test feedback signal. The intelligent test system can be compatible with multiple communication modes for intelligent test, has a lightweight deployment capability, and can effectively reduce the test cost and size of the system.

Description

Technical Field

[0001] The present application relates to the field of automated testing technology, and in particular to an intelligent testing system. Background Art

[0002] With the promotion of automated testing technology, automated testing tools in various fields emerge in an endless stream, such as the Digital Instrumentation and Control System of Nuclear Power Plant (DCS). At present, most of the automated testing tools for nuclear power plant instrumentation and control systems are tested by combining a host computer with a test cabinet, in which the test cabinet contains a chassis, controller, I / O card, adapter card, wiring terminals, and cables. The host computer and the test cabinet communicate through an RJ45 network cable, the controller and I / O card in the test cabinet communicate through the chassis backplane, the I / O card and the wiring terminals are connected through prefabricated cables, and the wiring terminals of the test tool are connected to the DCS system to be tested through end-to-end hard wiring.

[0003] The disadvantages of the above-mentioned test fixtures are: 1) The test fixture itself is large in size. Especially for large-scale testing, dozens of test cabinets are required, which will occupy a large area of ​​the site; 2) There are many devices in the test cabinet, which is not convenient for maintenance and has high equipment costs; 3) Only one communication method is supported between the test cabinet and the host computer, and the application scenarios are limited; 4) The end-to-end wiring method is used between the test fixture and the DCS system to be tested, which requires a large amount of cable laying and complex wiring, which increases the time and manpower investment in the integration of the test environment and increases the project cost. Summary of the invention

[0004] The purpose of this application is to provide an intelligent testing system that is compatible with multiple communication methods for intelligent testing and has lightweight deployment capabilities, which can effectively reduce the system testing cost and volume.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] The present application provides an intelligent test system, comprising: a host computer, an intelligent I / O module, and a transfer base matching the intelligent I / O module;

[0007] The host computer includes a use case management module and a communication configuration module; the host computer imports, stores and executes test cases through the use case management module, and generates test instructions according to the test cases; the communication configuration module is used to set the communication mode and communication protocol, and the test instructions are sent to the intelligent I / O module according to the communication mode and communication protocol set by the communication configuration module; the intelligent I / O module generates a test excitation signal according to the test instruction; the intelligent I / O module is connected to the system to be tested through the adapter base; the intelligent I / O module transmits the test excitation signal to the system to be tested; the system to be tested generates a test feedback signal according to the test excitation signal and transmits the test feedback signal to the host computer through the intelligent I / O module; the host computer generates a test result according to the test feedback signal.

[0008] Optionally, the intelligent I / O module includes an acquisition-type intelligent I / O module and an output-type intelligent I / O module; the acquisition-type intelligent I / O module includes a voltage / current acquisition module, a switch quantity acquisition module and a pulse acquisition module; the output-type intelligent I / O module includes a voltage / current output module, a switch quantity output module, a thermal resistor output module, a thermocouple output module and a pulse output module.

[0009] Optionally, the output-type intelligent I / O module generates a test excitation signal according to the test instruction and transmits it to the system under test.

[0010] Optionally, the acquisition type intelligent I / O module receives the test feedback signal and transmits it to the host computer.

[0011] Optionally, the communication mode includes 5G, WIFI and Ethernet; the communication protocol includes Modbus-TCP, Modbus-RTU and MQTT standard communication protocols.

[0012] Optionally, the host computer further includes a homepage module; the user inputs the test instruction through the homepage module and sends it to the intelligent I / O module.

[0013] Optionally, the host computer compares the test feedback signal with a preset expected value to generate a test result.

[0014] Optionally, the host computer further includes a log management module; the log management module generates a test report according to the test results.

[0015] Optionally, the adapter base is connected to the terminal block of the system to be tested by direct plugging.

[0016] Optionally, a SCSI68 standard interface is provided between the intelligent I / O module and the conversion base.

[0017] According to the specific embodiments provided in this application, this application has the following technical effects:

[0018] The present application provides an intelligent test system, which generates a test excitation signal through an intelligent I / O module according to a test instruction issued by a host computer, and transmits the test excitation signal to the system to be tested through a transfer base matched with the intelligent I / O module, thereby generating a test feedback signal; the intelligent test system of the present application also transmits the test feedback signal back to the host computer through the intelligent I / O module and the transfer base matched with the intelligent I / O module, so that the host computer generates a test result according to the test feedback signal. The intelligent test system of the present application has made technical innovations in terms of system architecture, communication mode, working mechanism, structural appearance, etc., and proposes an intelligent test system that is compatible with multiple communication modes for intelligent testing and has lightweight deployment capabilities, which can effectively reduce the cost and volume of system testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall architecture of the intelligent testing system provided for this application;

[0021] Figure 2 Functional block diagram of the intelligent testing system provided for this application;

[0022] Figure 3 Data flow diagram of the intelligent testing system provided in this application. DETAILED DESCRIPTION

[0023] 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.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Figure 1The overall architecture diagram of the intelligent test system provided in this application describes the components constituting the intelligent test system and their connection relationships. Figure 1 As shown, the structure of the intelligent test system can be divided into the user end, the device end and the server end. The user end is a host computer that integrates a 5G wireless data terminal. It is the management system of the intelligent I / O module in the intelligent test system, and it is also the human-computer interaction interface of the intelligent test system. The device end includes an intelligent I / O module (referred to as intelligent I / O) and its matching adapter base, which is the main hardware device of the intelligent test system, used to generate test excitation signals and collect test feedback signals. The server end includes an MQTT server and a 5G server, as well as a switch connecting the two, which is the medium for 5G interaction between the user end and the device end. As a specific embodiment, the present application constructs an intelligent test system for a nuclear power instrumentation and control system, and the specific structure and functions are shown below.

[0026] The intelligent test system disclosed in the present application adopts a lightweight design concept, and the intelligent test system composition includes a host computer, an intelligent I / O module, and a transfer base supporting the intelligent I / O module. Among them, the host computer is responsible for the functions of communication mode configuration, communication protocol setting, intelligent I / O module management, test case management, user management and log management, mainly including homepage module, case management module, communication configuration module, intelligent I / O module management module, user management module, parameter configuration module and log management module. The host computer imports, stores and executes the test case through the case management module, and generates test instructions (test data) according to the test case, or the user inputs the test data through the homepage module, and the test data is sent to the intelligent I / O module, and the test feedback signal of the intelligent I / O module is read at the same time, and the test feedback signal is compared with the preset expected value of the host computer, and the test result is automatically generated, and a test report is generated according to the test result by the log management module. The communication configuration module is used to set the communication mode and communication protocol, and the test instruction is sent to the intelligent I / O module according to the communication mode and communication protocol set by the communication configuration module.

[0027] The intelligent I / O module generates a test excitation signal according to the test instruction, and transmits the test excitation signal to the system under test through the adapter base. The system under test generates a test feedback signal according to the test excitation signal and transmits the test feedback signal to the host computer through the intelligent I / O module. The intelligent I / O module is a series of intelligent I / O modules, which are composed of multiple independently used intelligent I / O modules. The intelligent I / O module includes an acquisition type intelligent I / O module and an output type intelligent I / O module, wherein the acquisition type intelligent I / O module is a voltage / current acquisition module, a pulse acquisition module and a switch quantity acquisition module. The output type intelligent I / O module is a voltage / current output module, a pulse output module, a hot spot resistance output module, a thermocouple output module and a switch quantity output module. The above eight intelligent I / O modules cover all signal types of the nuclear power instrumentation and control system. The output type intelligent I / O module generates a test excitation signal according to the test instruction and transmits it to the system under test. The acquisition type intelligent I / O module receives the test feedback signal and transmits it to the host computer. The adapter base is used to connect the intelligent I / O module to the terminal block of the DCS system (DCS) to be tested. It adopts direct plug-in mode, does not require wiring, is simple to operate, and is convenient to use. Specifically, the intelligent I / O module and the adapter base are SCSI68 standard interfaces. The adapter base is directly plugged into the terminal board of the DCS system to be tested, plug-and-play, avoiding traditional physical wiring, and realizing the sending and receiving of electrical signals.

[0028] The host computer and the intelligent I / O module can communicate through 5G / WIFI wireless transmission and Ethernet (RJ45 wired transmission) and other communication methods, supporting three standard communication protocols: MQTT, Modbus-TCP and Modbus-RTU, to achieve the issuance of test instructions and the reading back of test feedback signals. Users can choose the appropriate communication method and communication protocol according to the application scenario and flexibly network.

[0029] In summary, the host computer converts the test instructions from engineering quantities to physical quantities and sends them to the output intelligent I / O module through 5G, WIFI or wired network communication. After receiving the test instructions, the output intelligent I / O module converts them into 0-20mA or 0-10V electrical signals after D / A conversion, gain and filtering, and then sends them to the DCS system to be tested through the adapter base. The acquisition intelligent I / O module collects the 4-20mA or 0-10V electrical signals output by the DCS system to be tested through the adapter base, and sends them to the host computer through 5G, WIFI or wired network communication. The host computer converts the physical quantity to the engineering quantity and displays it. The host computer compares the test feedback signal with the preset expected value, automatically determines the test result, and generates a test report.

[0030] Figure 2 The functional block diagram of the intelligent test system provided in this application describes the detailed functions of each component of the intelligent test system. Figure 2 The functions of each part of the intelligent testing system are explained in detail.

[0031] The host computer is the management system of the intelligent I / O module. Its main functions include module management, communication configuration, parameter configuration, case management, I / O operation and user management. It sends test instructions to the intelligent I / O module according to the test case or user operation, or reads the test feedback signal from the intelligent I / O module.

[0032] a) The homepage module dynamically displays the status information of the intelligent I / O modules in the network. After the user enters the homepage, the list displays the status information of the intelligent I / O modules in the network: module code, module description, type, IP and status, etc.

[0033] b) The user management module is responsible for storing and managing user information, including user name, user password and permissions.

[0034] c) The communication configuration module is used to set the communication mode and communication protocol, and send the configuration information to the intelligent I / O module.

[0035] d) The intelligent I / O module management module is responsible for managing all intelligent I / O module device information in the intelligent test system, and can configure the corresponding module name, module code and IP according to the actual needs of the project.

[0036] e) The main function of the parameter configuration module is to set the working mode (active / passive), channel variable name, signal type (voltage / current), upper and lower limits of each intelligent I / O module.

[0037] f) The use case management module is mainly responsible for the import, storage and execution of test cases, which can be executed manually, automatically or in batches.

[0038] g) I / O operation mainly realizes data output, data acquisition, data processing, etc. This functional module converts the engineering quantity signal input by the user into a physical quantity signal recognizable by the DCS system, and converts the physical quantity signal received from the DCS system into an engineering quantity signal.

[0039] The lower computer is composed of a series of intelligent I / O modules, which are responsible for generating test excitation signals and receiving test feedback signals. The intelligent I / O module has built-in 5G chips, WIFI chips, signal processing units, etc., which pass the test instructions issued by the upper computer to the DCS system to be tested, or receive the test feedback signals from the DCS system to be tested and pass them to the upper computer. The intelligent I / O module can be used independently without the need for a controller, and can be powered by a 24V power supply.

[0040] The adapter base is a connecting device for signal transmission between the intelligent I / O module and the DCS system to be tested. It has the same structure as the terminal board of the DCS system to be tested and can be directly plugged into the terminal board of the DCS system to be tested. It is plug-and-play and does not require manual wiring.

[0041] Figure 3 The data flow diagram of the intelligent test system provided in this application describes the operation process of the intelligent test system. Figure 3 Detailed introduction to the workflow of the intelligent testing system:

[0042] 1) First, configure the communication through the host computer and select the communication method and protocol.

[0043] 2) Add intelligent I / O modules and configure the intelligent I / O module name, code, IP and channel parameters.

[0044] 3) Check whether the startup and operation of each intelligent I / O module are normal.

[0045] 4) Test data is issued according to the test case, and the test feedback signal is read from the DCS. The paths of this process are as follows:

[0046] a. Test data flow of path ①-⑤-⑦: the test instruction of the host computer is sent to the output intelligent I / O module via WIFI—the output intelligent I / O module sends the test instruction to the DCS acquisition module via the adapter base—the DCS acquisition module passes the test data to the DCS controller and sends it to the DCS output module after logical processing—the DCS output module sends the test feedback signal to the acquisition intelligent I / O module via the adapter base—the acquisition intelligent I / O module sends the test feedback signal back to the host computer via WIFI. This path is suitable for system function testing.

[0047] b. Path ②-⑤-⑧ test data flow: Same as path ①-⑤-⑦, the communication method is 5G, and it is also suitable for system function testing.

[0048] c. Path ③-⑤-⑨ test data flow: Same as path ①-⑤-⑦, the communication method is wired, and it is also suitable for system function testing.

[0049] d. Path ④-⑤-⑦ test data flow: the test command of the host computer is directly sent to the DCS controller in M-NET mode to force the variable - the DCS controller sends the forced value to the DCS output module - the DCS output module sends the test feedback signal to the acquisition type intelligent I / O module via the adapter base - the acquisition type intelligent I / O module sends the test feedback signal back to the host computer via WIFI. This path is suitable for AO / DO channel testing.

[0050] e. Path ④-⑤-⑧ test data flow: Same as path ④-⑤-⑦, the communication mode is 5G, and it is also applicable to AO / DO channel testing.

[0051] f. Path ④-⑤-⑨ test data flow: Same as path ④-⑤-⑦, the communication mode is wired mode, also applicable to AO / DO channel test.

[0052] g. Path ①-⑥-⑩ test data flow: the host computer sends the test command to the output intelligent I / O module via WIFI - the output intelligent I / O module sends the test command to the DCS acquisition module via the adapter base - the DCS acquisition module passes the test data to the DCS controller - the host computer reads the value of the corresponding variable from the DCS controller via M-NET. This path is suitable for AI / DI channel testing.

[0053] h. Path ②-⑥-⑩ test data flow: Same as path ①-⑥-⑩, the communication mode is 5G, and it is also applicable to AI / DI channel testing.

[0054] i. Path ③-⑥-⑩ test data flow: Same as path ①-⑥-⑩, the communication mode is wired, and it is also applicable to AI / DI channel testing.

[0055] j. Path ④-⑥-⑩ test data flow: the test instructions of the host computer are sent directly to the DCS controller in M-NET mode to force variables - the DCS controller performs logical operations and processing - the host computer reads the values ​​of corresponding variables from the DCS controller in M-NET mode. This path is suitable for configuration logic testing.

[0056] 5) The host computer compares the sent data (preset expected value) with the test feedback signal, determines the test result, and automatically generates a test report.

[0057] Compared with the existing related intelligent testing system technology, the intelligent testing system of this application has the following technical effects:

[0058] 1. The intelligent testing system of this application overcomes the shortcomings of conventional cabinet-type testing tools, such as large size and large number of cables, and provides a distributed and lightweight deployment method. The number of nodes and installation locations can be flexibly arranged according to needs.

[0059] 2. The intelligent testing system of this application breaks the spatial and geographical limitations and can be remotely controlled and tested through 5G.

[0060] 3. In the intelligent test system of this application, the host computer and the intelligent I / O module can communicate through any of 5G, WIFI, and wired network communication, and the appropriate communication method can be selected according to the actual scenario.

[0061] 4. The intelligent I / O module in the intelligent test system of this application supports MQTT, Modbus-TCP, and Modbus-UDP standard communication protocols, and has strong versatility.

[0062] 5. In the intelligent test system of this application, the intelligent I / O module is directly plugged into the wiring terminal of the DCS system to be tested via the adapter base. It is simple to operate and easy to use, avoiding a large amount of end-to-end wiring and greatly reducing project costs.

[0063] 6. The intelligent I / O module in the intelligent test system of this application adopts a standardized design. It only needs to design a special adapter base for different test objects. It has strong versatility and can adapt to the application needs of multiple industries.

[0064] In summary, the intelligent test system of the present application abandons the traditional system architecture of cabinet-chassis-controller-I / O card-terminal-cable, and adopts a small and lightweight test module, each of which can run independently and be flexibly deployed. In addition, the intelligent test system supports 5G, WIFI and wired network communication methods, breaking geographical restrictions and meeting the needs of multi-scenario applications; the cable laying between the intelligent test system and the object to be tested is cancelled, and it can be directly plugged into the terminal board of the DCS system to be tested, plug and play, and the operation is simple and convenient. Therefore, the present application provides an intelligent test system that is compatible with 5G, WIFI and wired network transmission methods, supports multiple communication protocols, adapts to multi-scenario applications, and has lightweight deployment capabilities. It can not only be used for automated testing of nuclear power plant instrumentation and control systems, but also can be applied to automated testing in other automatic control fields.

[0065] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. An intelligent testing system, characterized in that: include: Host computer, intelligent I / O module and adapter base matching with intelligent I / O module; The host computer includes a use case management module and a communication configuration module; The host computer imports, stores and executes the test cases through the case management module, and generates test instructions according to the test cases; the communication configuration module is used to set the communication mode and communication protocol, and sends the test instructions to the intelligent I / O module according to the communication mode and communication protocol set by the communication configuration module; the intelligent I / O module generates a test excitation signal according to the test instruction; the intelligent I / O module is connected to the system to be tested through the adapter base; the intelligent I / O module transmits the test excitation signal to the system to be tested; the system to be tested generates a test feedback signal according to the test excitation signal and transmits the test feedback signal to the host computer through the intelligent I / O module; the host computer generates a test result according to the test feedback signal.

2. The intelligent testing system according to claim 1, characterized in that: The intelligent I / O modules include acquisition-type intelligent I / O modules and output-type intelligent I / O modules; the acquisition-type intelligent I / O modules include voltage / current acquisition modules, switch quantity acquisition modules and pulse acquisition modules; the output-type intelligent I / O modules include voltage / current output modules, switch quantity output modules, thermal resistor output modules, thermocouple output modules and pulse output modules.

3. The intelligent testing system according to claim 2, characterized in that: The output type intelligent I / O module generates a test excitation signal according to the test instruction and transmits the test excitation signal to the system to be tested.

4. The intelligent testing system according to claim 2, characterized in that: The acquisition type intelligent I / O module receives the test feedback signal and transmits it to the host computer.

5. The intelligent testing system according to claim 1, characterized in that: The communication methods include 5G, WIFI and Ethernet; the communication protocols include Modbus-TCP, Modbus-RTU and MQTT standard communication protocols.

6. The intelligent testing system according to claim 1, characterized in that: The host computer also includes a homepage module; the user inputs the test instruction through the homepage module and sends it to the intelligent I / O module.

7. The intelligent testing system according to claim 1, characterized in that: The host computer compares the test feedback signal with a preset expected value to generate a test result.

8. The intelligent testing system according to claim 1, characterized in that: The host computer also includes a log management module; the log management module generates a test report according to the test results.

9. The intelligent testing system according to claim 1, characterized in that: The adapter base is connected to the terminal block of the system to be tested by direct plugging.

10. The intelligent testing system according to claim 1, characterized in that: The intelligent I / O module and the conversion base have a SCSI68 standard interface.

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