Automatic test platform for electrical cabinet

Abstract

The invention provides an electrical cabinet automatic test platform, and relates to the technical field of electrical cabinet testing, the electrical cabinet automatic test platform comprises a power supply module, peripheral equipment, an industrial personal computer, a main control board, a communication module and an input and output module, the industrial personal computer and the main control board are electrically connected with the power supply module, and the peripheral equipment is electrically connected with the industrial personal computer; the communication module, the industrial personal computer and the input and output module are all electrically connected with the main control board, the communication module is electrically connected with the input and output module, and the input and output module is used for being electrically connected with a tested electrical cabinet; the industrial personal computer is provided with upper computer test software, the upper computer test software is used for controlling the power supply module to output preset voltage according to a preset instruction, the main control board is used for carrying out function test on the tested electrical cabinet, the peripheral equipment is used for outputting a result of the function test, and the communication module is used for carrying out data communication of the function test. According to the invention, automatic testing of the electrical cabinet can be realized, the testing efficiency is high, the testing cost is low, the testing accuracy is high, and faults can be rapidly positioned.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cabinet testing, and in particular to an automatic testing platform for an electrical cabinet. Background Art

[0002] Electrical cabinet testing generally uses manual testing methods, but manual testing methods have the following shortcomings: The detection accuracy is not high and the fault is difficult to locate. The method of manual detection of electrical cabinets usually involves giving inputs to all circuits in the electrical cabinet one by one and measuring the output to verify the logic accuracy. This method is not only time-consuming and labor-intensive, but also has the risk of false detection and missed detection. For electrical cabinets with complex logic, the difficulty and error rate of manual detection will be further increased, and there are also problems such as difficulty in locating faults, which will cause troubles in production and debugging, and may cause economic losses.

[0003] Low testing efficiency. With the development of electrical technology, the complexity and functionality of electrical cabinets are constantly increasing, and the requirements for testing efficiency are also increasing. Manual testing cannot meet the needs of large-scale and efficient testing. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic testing platform for electrical cabinets, which is used to solve the problems of low manual detection efficiency, low detection accuracy, and difficulty in locating faults in the prior art electrical cabinets, and to realize automated testing of electrical cabinets with high testing efficiency, low testing cost, and high testing accuracy, and can quickly locate faults.

[0005] In order to achieve the above-mentioned object, the present invention provides an automatic test platform for an electrical cabinet, comprising a power module, a peripheral device, an industrial computer, a main control board, a communication module and an input-output module, wherein the industrial computer and the main control board are electrically connected to the power module, the peripheral device is electrically connected to the industrial computer, the communication module, the industrial computer and the input-output module are electrically connected to the main control board, the communication module is electrically connected to the input-output module, and the input-output module is used to electrically connect to the electrical cabinet under test; The industrial computer is installed with host computer test software, which is used to control the power module to output a preset voltage according to preset instructions. The main control board is used to perform functional tests on the electrical cabinet under test. The peripheral equipment is used to output the results of the functional tests. The communication module is used for data communication for the functional tests.

[0006] According to an automatic test platform for an electrical cabinet provided by the present invention, a power supply module is used to convert an AC 220V AC input into a DC output of a DC 3.3V power supply, a DC 0~50V power supply, or a DC 0~150V power supply, wherein the DC 3.3V power supply is used as a power supply for a main control board, and the DC 0~50V power supply and the DC 0~150V power supply are used as test power supplies for the main control board.

[0007] According to an electrical cabinet automatic testing platform provided by the present invention, the peripheral devices include a display screen, a printer, a switch, and a buzzer. The display screen and the printer are electrically connected to the industrial computer, and the power module, the industrial computer, and the main control board are electrically connected to the switch.

[0008] According to an automatic testing platform for an electrical cabinet provided by the present invention, the input and output modules include a voltage acquisition board, an output control board and an aerial plug output configuration box. The voltage acquisition board and the output control board are electrically connected to the electrical cabinet under test through the aerial plug output configuration box. The voltage acquisition board is used to collect terminal voltage data of the electrical cabinet under test, and the output control board is used to control the terminal point logic output of the electrical cabinet under test. The main control board determines the output voltage configuration of the power module to the voltage acquisition board and the output control board by sampling and monitoring the output voltage of the power module.

[0009] According to an electrical cabinet automatic testing platform provided by the present invention, the communication module includes a CAN communication module, a 485 communication module and a network port output module, the CAN communication module is electrically connected to the main control board and the aviation plug output configuration box, the 485 communication module is electrically connected to the main control board and the aviation plug output configuration box, and the network port output module is electrically connected to the switch.

[0010] According to an automatic testing platform for an electrical cabinet provided by the present invention, functional tests include ground wire continuity test, incoming line terminal continuity test, common point continuity test, and logic function test.

[0011] According to an automatic testing platform for an electrical cabinet provided by the present invention, a ground wire continuity test includes: the host computer testing software controls the power module to output a DC 0~50V power supply or a DC 0~150V power supply according to preset instructions, connects the positive terminal of the power module to the ground wire terminal of the electrical cabinet under test, and leaves the positive terminal of the electrical cabinet under test suspended in the air, collects terminal voltage data of the ground wire terminal through a voltage acquisition board, and the main control board determines whether there is an abnormality in the line between the positive terminal of the power module and the ground wire terminal of the electrical cabinet under test, and collects other terminal voltage data through the voltage acquisition board to determine whether there is an incorrect wiring situation.

[0012] According to an automatic testing platform for an electrical cabinet provided by the present invention, the line-in conduction test includes: the host computer testing software controls the power module to output a DC 0~50V power supply or a DC 0~150V power supply according to preset instructions, connects the positive terminal of the power module to the positive terminal of the electrical cabinet under test, and leaves the negative terminal of the electrical cabinet under test suspended, collects the terminal voltage data of the positive terminal of the electrical cabinet under test through a voltage acquisition board, and the main control board determines whether there is an abnormality in the line between the positive terminal of the power module and the positive terminal of the electrical cabinet under test, and collects other terminal voltage data through the voltage acquisition board to determine whether there is an incorrect wiring situation.

[0013] According to an automatic testing platform for an electrical cabinet provided by the present invention, a common point conduction test includes: the host computer testing software controls the power module to output a DC 0~50V power supply or a DC 0~150V power supply according to preset instructions, connects the positive terminal of the power module to one of the multiple connected nodes of the electrical cabinet under test, collects terminal voltage data of other nodes in the multiple connected nodes through a voltage acquisition board, and the main control board determines whether there is an abnormality in the line between the positive terminal of the power module and one of the multiple connected nodes.

[0014] According to an automatic testing platform for an electrical cabinet provided by the present invention, a logic function test includes: the host computer testing software controls the power supply module to output a DC 0~50V power supply or a DC 0~150V power supply according to preset instructions, and the main control board determines whether the components or wiring inside the tested electrical cabinet are correct through the terminal voltage data collected by the voltage acquisition board.

[0015] The technical solution of the present invention has at least the following technical effects: The present invention provides an automatic test platform for an electrical cabinet, comprising a power module, a peripheral device, an industrial computer, a main control board, a communication module and an input / output module, wherein the industrial computer and the main control board are electrically connected to the power module, the peripheral device is electrically connected to the industrial computer, the communication module, the industrial computer and the input / output module are electrically connected to the main control board, the communication module is electrically connected to the input / output module, and the input / output module is used to electrically connect the electrical cabinet to be tested; the industrial computer is installed with a host computer test software, the host computer test software is used to control the power module to output a preset voltage according to a preset instruction, the main control board is used to perform a functional test on the electrical cabinet to be tested, the peripheral device is used to output the result of the functional test, and the communication module is used to perform data communication for the functional test. The present invention can realize the automatic test of the electrical cabinet, and has high test efficiency, low test cost, high test accuracy, and can quickly locate faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] In the attached picture: Figure 1 It is a structural block diagram of the automatic test platform for electrical cabinets of the present invention; Figure 2 It is a specific structural block diagram of the automatic testing platform for electrical cabinets of the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Some embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] As an important part of industrial automation equipment, the reliability of electrical cabinets directly affects the stability and safety of the entire power system. Through automatic testing methods, comprehensive and efficient testing of electrical cabinets can be achieved to ensure that their electrical characteristics are normal and reliable, avoiding failures during actual operation.

[0021] See also Figure 1 and Figure 2 , an embodiment of the present invention provides an electrical cabinet automatic test platform, including a power module, a peripheral device, an industrial computer, a main control board, a communication module and an input-output module, the industrial computer and the main control board are electrically connected to the power module, the peripheral device is electrically connected to the industrial computer, the communication module, the industrial computer, and the input-output module are electrically connected to the main control board, the communication module is electrically connected to the input-output module, and the input-output module is used to electrically connect to the electrical cabinet under test; The industrial computer is installed with host computer test software, which is used to control the power module to output a preset voltage according to preset instructions. The main control board is used to perform functional tests on the electrical cabinet under test. The peripheral equipment is used to output the results of the functional tests. The communication module is used for data communication for the functional tests.

[0022] It should be noted that the host computer test software, as an interface for human-computer interaction, controls the power module to output a preset voltage according to the preset instructions input by the operator. It can establish simulation models and connection relationships of various objects in the test platform, associate each object model with the real object, configure communication parameters, physical parameters, etc.; it has the following functions: (1) Real-time status display of input channels. The interface of the host computer test software can display the input channel results in real time so that the operator can understand the test progress and electrical cabinet status in a timely manner; (2) Output channel programmable control. The output channel supports programmable control, allowing operators to configure test parameters as needed to achieve logical function testing of the electrical cabinet; (3) Historical data viewing. The host computer test software can store historical test data and provide convenient query and viewing functions to assist operators in analyzing test results and tracking test progress; (4) Test data report generation. The host computer test software can automatically generate a report based on the test data. The test report contains the necessary test parameters, results and analysis; (5) User authority classification. The host computer test software can implement user authority classification to ensure that users of different levels can access corresponding functional modules, thereby ensuring data security and the legality of operations.

[0023] Specifically, the power module is used to convert the AC 220V AC input into DC 3.3V power, DC 0~50V power, and DC 0~150V power outputs. By converting the input AC 220V, the required power output is obtained to power peripheral devices, industrial computers, main control boards, communication modules, and input and output modules. Among them, the DC 3.3V power supply is used as the power supply for the main control board, and the DC 0~50V power supply and DC 0~150V power supply are used as the test power supply for the main control board. The peripheral devices include display screens, printers, switches, and buzzers, which are mainly used for the output and display of test results. The display screen and printer are electrically connected to the industrial computer, and the power module, industrial computer, and main control board are electrically connected to the switch.

[0024] The main control board can realize the terminal point logic analysis of the tested electrical cabinet. The input and output module includes 3 16-channel ADC voltage acquisition boards, 2 30-channel output control boards and an aviation plug output configuration box. The 3 16-channel ADC voltage acquisition boards and 2 30-channel output control boards are electrically connected to the tested electrical cabinet through the aviation plug output configuration box. The 16-channel ADC voltage acquisition board is used to collect the terminal voltage data of the tested electrical cabinet, and the 30-channel output control board is used to control the terminal point logic output of the tested electrical cabinet. The main control board samples and monitors the output voltage of the power module (output sampling) to determine the output voltage configuration (output configuration) of the power module to the 16-channel ADC voltage acquisition board and the 30-channel output control board.

[0025] The communication module includes 2-way CAN communication module, 2-way 485 communication module and network port output module. The CAN communication module is electrically connected to the main control board and the aviation plug output configuration box, the 485 communication module is electrically connected to the main control board and the aviation plug output configuration box, and the network port output module is electrically connected to the switch. The test data can be copied and transmitted through the network port output module.

[0026] Specifically, the functional test includes ground wire continuity test, incoming line terminal continuity test, common point continuity test, and logic function test.

[0027] Among them, the ground wire continuity test includes: Wiring is performed according to the electrical principle of the tested electrical cabinet. The host computer test software controls the power module to output a voltage suitable for the tested electrical cabinet (DC 0~50V power supply or DC 0~150V power supply) according to the preset instructions. The positive terminal of the power module is connected to the ground terminal of the tested electrical cabinet. The positive terminal of the tested electrical cabinet is suspended. The terminal voltage data of the ground terminal is collected through the voltage acquisition board. The main control board determines whether there is an abnormality on the line between the positive terminal of the power module and the ground terminal of the tested electrical cabinet, such as a circuit break or poor contact, and collects other terminal voltage data through the voltage acquisition board to determine whether there is an incorrect wiring situation. The test results can be printed or saved by a printer.

[0028] For example, assuming that the voltage output by the power module is 110V, if the terminal voltage data of the ground wire end collected by the voltage acquisition board is 110V, it indicates that there is no abnormality in the line between the positive terminal of the power module and the ground wire end of the tested electrical cabinet. If the terminal voltage data of the ground wire end collected by the voltage acquisition board is 0V, it indicates that there is a circuit break. If the terminal voltage data is sometimes available, it indicates that there is a poor contact abnormality. When the abnormality is determined, the main control board controls the buzzer to sound an early warning to alert the operator. In addition, if no voltage information is detected when collecting other terminal points, there is no incorrect wiring.

[0029] The incoming line continuity test includes: Wiring is performed according to the electrical principle of the electrical cabinet under test. The host computer test software controls the power module to output a voltage suitable for the electrical cabinet under test (DC 0~50V power supply or DC 0~150V power supply) according to preset instructions. The positive terminal of the power module is connected to the positive terminal of the electrical cabinet under test, and the negative terminal of the electrical cabinet under test is suspended. The terminal voltage data of the positive terminal of the electrical cabinet under test is collected through the voltage acquisition board. The main control board determines whether there is any abnormality in the line between the positive terminal of the power module and the positive terminal of the electrical cabinet under test, and collects other terminal voltage data through the voltage acquisition board to determine whether there is an incorrect wiring situation.

[0030] Common point continuity tests include: Wiring is performed according to the electrical principle of the electrical cabinet under test. The host computer test software controls the power module to output a voltage suitable for the electrical cabinet under test (DC 0~50V power supply or DC 0~150V power supply) according to preset instructions, and the positive terminal of the power module is connected to one of the multiple connected nodes of the electrical cabinet under test. The terminal voltage data of other nodes in the multiple connected nodes are collected through the voltage acquisition board. The main control board determines whether there is an abnormality in the line between the positive terminal of the power module and one of the multiple connected nodes.

[0031] Logical function tests include: The logic function test is to test whether the components inside the tested electrical cabinet have achieved the predetermined functions after configuration, confirm that there are no logic errors in the configuration of the components inside the tested electrical cabinet (mainly testing contactors, relays, etc.), and connect the components according to the electrical principle of the tested electrical cabinet. The host computer test software controls the power module to output a voltage suitable for the tested electrical cabinet (DC 0~50V power supply or DC 0~150V power supply) according to the preset instructions. The main control board determines whether the components or wiring inside the tested electrical cabinet are correct through the terminal voltage data collected by the voltage acquisition board.

[0032] It should be noted that the electrical cabinet automatic testing platform provided by the present invention has the following main functions: first, it can automatically determine whether the wiring of the electrical cabinet under test is correct and whether the output function is logical, including ground wire continuity test, incoming line terminal continuity test, common point continuity test, and logic function test; second, it can automatically import and identify the connection list of the electrical cabinet under test, automatically form a complete set of test steps through analysis, and can generate test data according to the product name and model of the electrical cabinet under test for printing or saving.

[0033] In summary, in view of the problems of low manual detection efficiency, low detection accuracy, and difficulty in locating faults in the prior art, an automatic test platform for electrical cabinets provided by the present invention has the following advantages: High test efficiency. The present invention can realize automatic testing, can quickly and accurately complete the test work of the electrical cabinet, and greatly shorten the test cycle. Compared with manual testing, automatic testing can handle multiple test tasks at the same time, improving test efficiency.

[0034] Low testing cost. The automatic testing method of the present invention reduces manual participation and reduces labor costs. At the same time, due to the shortened test cycle and improved test accuracy, the rework cost caused by test failure is also reduced.

[0035] High test accuracy. The automatic test method of the present invention can realize accurate testing of the electrical cabinet. Compared with manual testing, automatic testing can better avoid the problems of false detection and missed detection, and improve the accuracy of the test.

[0036] Rapid fault location: The present invention can quickly locate and repair problems in electrical cabinets through comprehensive and efficient automatic testing.

[0037] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An automatic test platform for electrical cabinets, characterized in that: It includes a power module, a peripheral device, an industrial computer, a main control board, a communication module and an input-output module. The industrial computer and the main control board are electrically connected to the power module, the peripheral device is electrically connected to the industrial computer, the communication module, the industrial computer and the input-output module are electrically connected to the main control board, the communication module is electrically connected to the input-output module, and the input-output module is used to electrically connect to the electrical cabinet under test; The industrial computer is installed with host computer test software, and the host computer test software is used to control the power module to output a preset voltage according to preset instructions. The main control board is used to perform functional tests on the electrical cabinet under test. The peripheral device is used to output the results of the functional tests. The communication module is used to perform data communication for the functional tests.

2. The electrical cabinet automatic test platform according to claim 1, characterized in that: The power supply module is used to convert AC220V AC input into DC output of DC 3.3V power supply, DC 0~50V power supply, and DC 0~150V power supply, wherein the DC 3.3V power supply is used as the power supply of the main control board, and the DC 0~50V power supply and DC 0~150V power supply are used as the test power supply of the main control board.

3. The electrical cabinet automatic test platform according to claim 2, characterized in that: The peripheral equipment includes a display screen, a printer, a switch, and a buzzer. The display screen and the printer are electrically connected to the industrial computer. The power module, the industrial computer, and the main control board are electrically connected to the switch.

4. The electrical cabinet automatic test platform according to claim 3, characterized in that: The input-output module includes a voltage acquisition board, an output control board and an aerial plug output configuration box. The voltage acquisition board and the output control board are electrically connected to the electrical cabinet under test through the aerial plug output configuration box. The voltage acquisition board is used to collect terminal voltage data of the electrical cabinet under test. The output control board is used to control the terminal point logic output of the electrical cabinet under test. The main control board determines the output voltage configuration of the power module to the voltage acquisition board and the output control board by sampling and monitoring the output voltage of the power module.

5. The electrical cabinet automatic test platform according to claim 4, characterized in that: The communication module includes a CAN communication module, a 485 communication module and a network port output module. The CAN communication module is electrically connected to the main control board and the aviation plug output configuration box, the 485 communication module is electrically connected to the main control board and the aviation plug output configuration box, and the network port output module is electrically connected to the switch.

6. The electrical cabinet automatic test platform according to claim 5, characterized in that: The functional test includes ground wire continuity test, incoming line end continuity test, common point continuity test and logic function test.

7. The electrical cabinet automatic test platform according to claim 6, characterized in that: The ground wire continuity test includes: the host computer test software controls the power module to output DC 0~50V power or DC 0~150V power according to preset instructions, connects the positive terminal of the power module to the ground terminal of the electrical cabinet under test, and the positive terminal of the electrical cabinet under test is suspended. The terminal voltage data of the ground terminal is collected through the voltage acquisition board. The main control board determines whether there is an abnormality in the line between the positive terminal of the power module and the ground terminal of the electrical cabinet under test, and collects other terminal voltage data through the voltage acquisition board to determine whether there is an incorrect wiring situation.

8. The electrical cabinet automatic test platform according to claim 6, characterized in that: The incoming line conduction test includes: the host computer test software controls the power module to output DC 0~50V power or DC 0~150V power according to preset instructions, connects the positive terminal of the power module to the positive terminal of the electrical cabinet under test, and leaves the negative terminal of the electrical cabinet under test suspended, and collects the terminal voltage data of the positive terminal of the electrical cabinet under test through the voltage acquisition board. The main control board determines whether there is an abnormality in the line between the positive terminal of the power module and the positive terminal of the electrical cabinet under test, and collects other terminal voltage data through the voltage acquisition board to determine whether there is an incorrect wiring situation.

9. The electrical cabinet automatic test platform according to claim 6, characterized in that: The common point conduction test includes: the host computer test software controls the power module to output DC 0~50V power supply or DC 0~150V power supply according to preset instructions, connects the positive terminal of the power module to one of the multiple connected nodes of the electrical cabinet under test, collects terminal voltage data of other nodes among the multiple connected nodes through the voltage acquisition board, and the main control board determines whether there is an abnormality in the line between the positive terminal of the power module and one of the multiple connected nodes.

10. The electrical cabinet automatic test platform according to claim 6, characterized in that: The logic function test includes: the host computer test software controls the power module to output DC 0~50V power supply or DC 0~150V power supply according to preset instructions, and the main control board determines whether the devices or wiring inside the tested electrical cabinet are correct through the terminal voltage data collected by the voltage acquisition board.

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