Hydraulic support electro-hydraulic controller test system and control method thereof

By designing a hydraulic support electro-hydraulic controller test system, using the upper computer, electro-hydraulic controller and signal collector, the rapid and accurate test of the hydraulic support electro-hydraulic controller is achieved, solving the problem of relying on manual operation and visual inspection in the existing technology, and improving the testing efficiency and accuracy.

CN120255472APending Publication Date: 2025-07-04SANY HEAVY EQUIP CO LTD +1
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Patent Information

Application Number
CN202510365698.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

In the prior art, the test method of hydraulic support electro-hydraulic controllers relies on manual operation and visual inspection, resulting in low efficiency, easy to miss inspection and inaccurate test results.

Method used

Design a hydraulic support electro-hydraulic controller test system, including a computer, an electro-hydraulic controller and a signal collector. The computer sends control instructions, the electro-hydraulic controller controls the hydraulic support to perform actions and displays content in real time, the signal collector collects signal data, and the computer analyzes and generates test results.

Benefits of technology

Fast and accurate hydraulic bracket electro-hydraulic controller testing is achieved, reducing dependence on manual operation and visual inspection, and improving testing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of hydraulic support detection, in particular to a hydraulic support electro-hydraulic controller test system and a control method thereof. The hydraulic support electro-hydraulic controller test system comprises an upper computer, an electro-hydraulic controller and a signal collector. The upper computer is used for sending a control instruction corresponding to a test case to the electro-hydraulic controller. The electro-hydraulic controller is used for controlling the hydraulic support to execute actions through an electromagnetic valve driver on the hydraulic support according to the control instruction and displaying the current action content corresponding to the control instruction in real time. The signal collector is used for collecting current signal data corresponding to each channel in the electromagnetic valve driver in real time; the upper computer is also used for identifying the current action content displayed by the electro-hydraulic controller and analyzing the identified current action content and the current signal data corresponding to each channel so as to generate a corresponding test result; according to the invention, the problem of dependence on manual operation and visual inspection of testers during testing of the electro-hydraulic controller of the hydraulic support is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic support detection, and in particular to a test system for an electro-hydraulic controller of a hydraulic support and a control method thereof. Background Art

[0002] The electro-hydraulic controller of a hydraulic support is a core device in a fully mechanized coal mining face. Due to the requirements for the diversity and safety of the actions of the hydraulic support, the reliability of the electro-hydraulic controller is crucial. In the prior art, the test method for the electro-hydraulic controller still relies on manual operation and visual inspection. Therefore, the existing test methods have problems such as low efficiency, easy omission of inspection, and inaccurate test results. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, the first object of the present invention is to provide a test system for a hydraulic support controller, which solves the problem of relying on manual operation and visual inspection of testers during the test of the electro-hydraulic controller of the hydraulic support.

[0005] The second object of the present invention is to provide a control method for the test system of the hydraulic support controller.

[0006] To achieve the above object, an embodiment of the present invention provides a test system for an electro-hydraulic controller of a hydraulic support, including:

[0007] A host computer, configured to send control instructions corresponding to test cases to the electro-hydraulic controller;

[0008] The electro-hydraulic controller is configured to control the hydraulic support to perform actions by using a solenoid valve driver on the hydraulic support according to the control instructions, and display the current action content corresponding to the control instructions in real time;

[0009] A signal collector, configured to collect the current signal data corresponding to each channel in the solenoid valve driver in real time;

[0010] The host computer is further configured to identify the current action content displayed by the electro-hydraulic controller, and analyze the identified current action content and the current signal data corresponding to each channel to generate corresponding test results.

[0011] Optionally, it further includes a CAN bus analyzer, and the CAN bus analyzer is connected to the host computer through USB;

[0012] The host computer is further configured to convert the control instructions corresponding to the test cases into CAN protocol frames, and send the CAN protocol frames to the CAN bus analyzer;

[0013] The CAN bus analyzer is used to send CAN protocol frames to the electro-hydraulic controller so that the electro-hydraulic controller can receive the control instructions corresponding to the test cases.

[0014] Optionally, the electro-hydraulic controller includes a screen for displaying the current action content corresponding to the control instructions in real time; the current action content includes text recording the current action content.

[0015] Optionally, the system further includes a camera for taking pictures of the screen and sending the captured screen images to the host computer;

[0016] The host computer includes an identification module for identifying the current action content displayed on the electro-hydraulic controller based on the screen images.

[0017] Optionally, the identification module includes:

[0018] An image processing unit for performing grayscale conversion, binarization, and character region localization processing on the screen images to obtain the image to be recognized;

[0019] An identification unit for using an OCR engine to identify the image to be recognized to obtain the current action content displayed on the electro-hydraulic controller; the current action content includes the name and status of the current execution action corresponding to the hydraulic support.

[0020] Optionally, the electro-hydraulic controller is communicatively connected to the solenoid valve driver on the hydraulic support; the signal collector is connected to the host computer through USB.

[0021] Optionally, the signal collector includes:

[0022] A signal acquisition unit for real-time acquisition of the active digital signals corresponding to each channel in the solenoid valve driver;

[0023] A status acquisition unit for determining the current signal data corresponding to each channel according to the active digital signals corresponding to each channel; the current signal data includes the current on / off status and the duration corresponding to the current on / off status.

[0024] Optionally, the host computer includes:

[0025] A judgment module for judging whether the current action content identified by the host computer matches the current signal data corresponding to each channel according to the preset logical rules; if they match, it is determined that the test of the electro-hydraulic controller passes; if they do not match, it is determined that the test of the electro-hydraulic controller fails.

[0026] Optionally, the signal collector is connected to the host computer through USB.

[0027] Optionally, the host computer includes:

[0028] A result recording module, which is used to generate a test report based on the test results and save the test report in the form of a log file.

[0029] To achieve the above object, an embodiment of the present invention provides a control method for a hydraulic support controller test system, including:

[0030] The host computer sends the control instructions corresponding to the test cases to the electro-hydraulic controller;

[0031] The electro-hydraulic controller controls the hydraulic support to perform actions by using the solenoid valve driver on the hydraulic support according to the control instructions, and displays the current action content corresponding to the control instructions in real time;

[0032] The signal collector collects the current signal data corresponding to each channel in the solenoid valve driver in real time;

[0033] The host computer identifies the current action content displayed by the electro-hydraulic controller, and analyzes the identified current action content and the current signal data corresponding to each channel to generate corresponding test results.

[0034] At least one of the above technical solutions has the following advantages or beneficial effects:

[0035] For a hydraulic support electro-hydraulic controller test system according to an embodiment of the present invention, the host computer sends the control instructions corresponding to the test cases to the electro-hydraulic controller, and then the electro-hydraulic controller uses the solenoid valve driver on the hydraulic support to control the hydraulic support to perform actions according to the control instructions, and displays the current action content corresponding to the control instructions in real time; then, the signal collector collects the current signal data corresponding to each channel in the solenoid valve driver in real time; finally, the host computer also identifies the current action content displayed by the electro-hydraulic controller, and analyzes the identified current action content and the current signal data corresponding to each channel to generate corresponding test results, so as to quickly and accurately obtain the test results of the electro-hydraulic controller of the hydraulic support, and solve the problem of relying on manual operation and visual inspection of testers during the test of the electro-hydraulic controller of the hydraulic support. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Shows a schematic diagram of a hydraulic support electro-hydraulic controller test system according to an embodiment provided by the present invention;

[0037] Figure 2 Shows a schematic diagram of a hydraulic support electro-hydraulic controller test system according to another embodiment provided by the present invention;

[0038] Figure 3 Shows a flowchart of a control method for a hydraulic support electro-hydraulic controller test system according to an embodiment provided by the present invention. DETAILED DESCRIPTION

[0039] For better explaining the present invention for easy understanding, the present invention will be described in detail below in conjunction with the accompanying drawings through specific embodiments.

[0040] The electro-hydraulic controller of a hydraulic support is a core device in a fully mechanized coal mining face. It sends instructions to a solenoid valve driver through the RS485 communication protocol to drive multiple active switch signals in the solenoid valve driver to control the action of the electromagnetic pilot valve on the solenoid valve driver, and finally realizes complex action combinations such as lifting columns, lowering columns, and pushing of the hydraulic support. Due to the requirements for the diversity and safety of the actions of the hydraulic support, the reliability of the electro-hydraulic controller is crucial. The traditional test method for the electro-hydraulic controller relies on manual operation and visual inspection. The tester manually operates the controller, observes whether the actions of the hydraulic support are consistent with the expectations, and records the test results. Therefore, this test method has problems such as low efficiency, easy omission of inspection, and inability to quantify the action duration.

[0041] In order to solve at least one of the technical problems existing in the prior art or related technologies, the present invention provides a test system and a control method for an electro-hydraulic controller of a hydraulic support. The test system for the electro-hydraulic controller of a hydraulic support includes a host computer, an electro-hydraulic controller, and a signal collector. The host computer is used to send control instructions corresponding to test cases to the electro-hydraulic controller; the electro-hydraulic controller is used to control the hydraulic support to execute actions by using the solenoid valve driver on the hydraulic support according to the control instructions, and display the current action content corresponding to the control instructions in real time; the signal collector is used to collect the current signal data corresponding to each channel in the solenoid valve driver in real time; the host computer is further used to identify the current action content displayed by the electro-hydraulic controller, and analyze the identified current action content and the current signal data corresponding to each channel to generate corresponding test results; this system can quickly and accurately obtain the test results for the electro-hydraulic controller of the hydraulic support to solve the problem of relying on manual operation and visual inspection of the tester during the test of the electro-hydraulic controller of the hydraulic support.

[0042] The following describes a test system and a control method for an electro-hydraulic controller of a hydraulic support according to some embodiments provided by the present invention with reference to the accompanying drawings.

[0043] See Figure 1, a hydraulic support electro-hydraulic controller test system according to an embodiment of the first aspect of the present invention includes a host computer 101, an electro-hydraulic controller 102, and a signal collector 103. The host computer 101 is configured to send control instructions corresponding to test cases to the electro-hydraulic controller 102; the electro-hydraulic controller 102 is configured to control the hydraulic support to perform actions by using a solenoid valve driver 106 on the hydraulic support according to the control instructions, and display the current action content corresponding to the control instructions in real time; the signal collector 103 is configured to collect the current signal data corresponding to each channel in the solenoid valve driver 106 in real time; the host computer 101 is further configured to identify the current action content displayed by the electro-hydraulic controller 102, and analyze the identified current action content and the current signal data corresponding to each channel to generate corresponding test results.

[0044] Among them, the host computer 101, the solenoid valve driver 106, and the signal collector 103 are connected in sequence, and the host computer 101 is further connected to the signal collector 103.

[0045] Here, the host computer 101 can receive the current action content displayed by the electro-hydraulic controller 102 and the current signal data corresponding to each channel in real time, and while realizing the real-time identification of the current action content displayed by the electro-hydraulic controller 102, it can also synchronously analyze the identified current action content and the current signal data corresponding to each channel.

[0046] It should be noted that the execution actions of the hydraulic support are controlled by each channel in the solenoid valve driver 106. For example, when channel 5 in the solenoid valve driver 106 is in the open state, the execution action of the hydraulic support is the retraction of the canopy; therefore, by analyzing the current signal data corresponding to each channel here, the current action content being executed by the hydraulic support can be determined.

[0047] In this embodiment, the host computer 101 sends the control instructions corresponding to the test cases to the electro-hydraulic controller 102, and then the electro-hydraulic controller 102 uses the solenoid valve driver 106 on the hydraulic support to control the hydraulic support to perform actions according to the control instructions, and displays the current action content corresponding to the control instructions in real time; then, the signal collector 103 collects the current signal data corresponding to each channel in the solenoid valve driver 106 in real time; finally, the host computer 101 also identifies the current action content displayed by the electro-hydraulic controller 102, and analyzes the identified current action content and the current signal data corresponding to each channel to generate corresponding test results, so as to quickly and accurately obtain the test results of the electro-hydraulic controller 102 of the hydraulic support, and solve the problem of relying on manual operations and visual inspections of testers when testing the electro-hydraulic controller 102 of the hydraulic support.

[0048] In some possible embodiments, refer toFigure 2 The system further includes a CAN bus analyzer 105, which is connected to the host computer 101 via USB. The host computer 101 is further configured to convert the control instruction corresponding to the test case into a CAN protocol frame and send the CAN protocol frame to the CAN bus analyzer 105. The CAN bus analyzer 105 is configured to send the CAN protocol frame to the electro-hydraulic controller 102, so that the electro-hydraulic controller 102 receives the control instruction corresponding to the test case.

[0049] Taking the control instruction corresponding to test case A as an example, where the control instruction is "lifting the column for 5 seconds + pushing for 3 seconds", the host computer 101 converts this control instruction into a CAN protocol frame and then sends it to the electro-hydraulic controller 102 via the CAN protocol frame, so that the electro-hydraulic controller 102 receives the control instruction with "lifting the column for 5 seconds + pushing for 3 seconds".

[0050] In this embodiment, by connecting the host computer 101 to the CAN bus analyzer 105 and then sending the CAN protocol frame to the electro-hydraulic controller 102 via the CAN bus analyzer 105, the control instruction corresponding to the test case can be accurately sent to the electro-hydraulic controller 102, so that the electro-hydraulic controller 102 drives the solenoid valve driver 106 to control the execution actions of the hydraulic support according to this control instruction.

[0051] In some possible embodiments, refer to Figure 2 The electro-hydraulic controller 102 includes a screen 1021, and the screen 1021 is configured to display the current action content corresponding to the control instruction in real time.

[0052] Here, after the electro-hydraulic controller 102 receives the control instruction corresponding to the test case sent by the host computer 101, the screen 1021 will display the current action content corresponding to the control instruction in real time. Taking the above test case A as an example, after the electro-hydraulic controller 102 receives the control instruction corresponding to test case A sent by the host computer 101, the current action content indicating "lifting the column for 5 seconds + pushing for 3 seconds" is immediately displayed on the screen 1021.

[0053] Among them, the current action content includes the text recording the current action content.

[0054] In order to more intuitively obtain the display of the control instructions corresponding to the test cases on the screen 1021, here, by displaying the current action content corresponding to the control instructions in text form on the screen 1021, the current action content corresponding to the control instructions can be displayed more intuitively and quickly; taking the above-mentioned test case A as an example, after the electro-hydraulic controller 102 receives the control instructions corresponding to the test case A sent by the host computer 101, the text "Lifting column action lasts for 5 seconds + Pushing action lasts for 3 seconds" is immediately displayed on the screen 1021.

[0055] In some possible embodiments, referring to Figure 2 , the system further includes a camera 104, which is used to take pictures of the screen 1021 and send the captured screen images to the host computer 101; the host computer 101 includes an identification module, and the identification module is used to identify the current action content displayed by the electro-hydraulic controller 102 according to the screen images.

[0056] Here, the camera 104 is arranged in front of the screen 1021 of the electro-hydraulic controller 102, can be connected to the host computer 101 through USB, and the camera 104 can send the captured screen images to the host computer 101 in real time, so that the host computer 101 can identify the screen images in real time through the camera 104.

[0057] In this embodiment, the camera 104 can replace the human eye to obtain screen images in real time, and then send the real-time obtained screen images to the host computer 101, so that the identification module in the host computer 101 can identify the screen images to identify the current action content displayed on the screen 1021, thereby facilitating the host computer 101 to analyze according to the identified current action content and the current signal data corresponding to each channel.

[0058] Taking the above-mentioned test case A as an example, the camera 104 takes pictures of the screen 1021 of the electro-hydraulic controller 102, and a screen image containing the text "Lifting column action lasts for 5 seconds + Pushing action lasts for 3 seconds" can be obtained. After the camera 104 sends the screen image to the host computer 101, the identification module of the host computer 101 identifies the screen image and can identify that the content displayed by the electro-hydraulic controller 102 is "Lifting column action lasts for 5 seconds + Pushing action lasts for 3 seconds".

[0059] In some possible embodiments, the identification module includes an image processing unit and an identification unit. The image processing unit is used to perform grayscale conversion, binarization and character region localization processing on the screen image to obtain an image to be identified; the identification unit is used to use an OCR engine to identify the image to be identified to obtain the current action content displayed by the electro-hydraulic controller 102; the current action content includes the current execution action name and the current execution action status corresponding to the hydraulic support.

[0060] Here, when the image processing unit processes the screen image, it can call the OpenCV library to perform grayscale conversion, binarization, and character region localization on the screen image.

[0061] It should be noted that the current execution action name corresponding to the hydraulic support can include retracting the canopy, raising the support column, and lowering the support column; the current execution action status can include "action duration"; the current execution action status is also displayed in text form on the screen.

[0062] In this embodiment, by performing grayscale conversion, binarization, and character region localization on the screen image through the image processing unit, a to-be-recognized image that is convenient for the recognition unit to recognize can be obtained, so as to improve the accuracy of the recognition unit in recognizing the screen image; then, by using the OCR engine to recognize the to-be-recognized image, the current action content displayed by the electro-hydraulic controller 102 can be accurately recognized.

[0063] In some possible implementation embodiments, the electro-hydraulic controller 102 is communicatively connected to the solenoid valve driver 106 on the hydraulic support; the signal collector 103 is connected to the host computer 101 through USB.

[0064] Here, the electro-hydraulic controller 102 and the solenoid valve driver 106 on the hydraulic support can be communicatively connected through RS485; the signal collector 103 can also be connected to the host computer 101 through the USB module built in CH340G or STM32, so as to realize the connection between the signal collector 103 and the host computer 101 through USB.

[0065] In some possible implementation embodiments, the signal collector 103 includes a signal acquisition unit and a status acquisition unit. The signal acquisition unit is used to collect the active switch quantity signals corresponding to each channel in the solenoid valve driver 106 in real time; the status acquisition unit is used to determine the current signal data corresponding to each channel according to the active switch quantity signals corresponding to each channel; the current signal data includes the current open / close state and the duration corresponding to the current open / close state.

[0066] Here, the signal acquisition unit is designed based on a single-chip microcomputer, and can collect the active switch quantity signals corresponding to each channel in the solenoid valve driver 106 in real time and upload them to the host computer 101 through USB.

[0067] It should be noted that when determining the current signal data corresponding to each channel, the current open / close state corresponding to each channel can be determined, and the duration for which each channel is in its corresponding current open / close state can be recorded, and then the current open / close state corresponding to each channel and the duration corresponding to each current open / close state can be obtained.

[0068] In this embodiment, the status acquisition unit can obtain the current opening and closing status of each channel and the duration corresponding to each channel in the solenoid valve driver 106 based on the active digital signals collected by the signal acquisition unit in real time, and then determine the current signal data corresponding to each channel, so that the host computer 101 can determine the test result according to the current signal data corresponding to each channel.

[0069] In some possible embodiments, referring to Figure 2 , the host computer 101 includes a judgment module, and the judgment module is used to judge whether the currently recognized action content of the host computer 101 matches the current signal data corresponding to each channel according to a preset logical rule; if they match, it is determined that the test of the electro-hydraulic controller 102 passes; if they do not match, it is determined that the test of the electro-hydraulic controller 102 fails.

[0070] Taking the preset logical rule as "the error range of the action duration is ±0.5 seconds" as an example, if the currently recognized action content of the host computer 101 is "the canopy retracts, and the duration is 8 seconds", and the channel corresponding to the solenoid valve driver 106 used to control the canopy retraction action is channel 5, if the current signal data corresponding to channel 5 is "channel 5 opens for 6 seconds", then the judgment module judges that the currently recognized action content of the host computer 101 does not match the current signal data corresponding to each channel, so as to determine that the test of the electro-hydraulic controller 102 fails; if the current signal data corresponding to channel 5 is "channel 5 opens for 6.7 seconds", then the judgment module judges that the currently recognized action content of the host computer 101 matches the current signal data corresponding to each channel, so as to determine that the test of the electro-hydraulic controller 102 passes.

[0071] In this embodiment, by the judgment module judging whether the currently recognized action content of the host computer 101 matches the current signal data corresponding to each channel according to a preset logical rule, the problem of errors in manual interpretation and operation can be avoided, so as to improve the accuracy of the test system.

[0072] In some possible embodiments, the host computer 101 includes a result recording module, and the result recording module is used to generate a test report for the test result and save the test report in the form of a log file.

[0073] Among them, when the judgment module determines that the test result of the electro-hydraulic controller 102 is a test failure, the abnormal items can be marked in the test report, so that the staff can repair the hydraulic support.

[0074] Referring to Figure 3 , a control method for a hydraulic support controller test system according to the second aspect embodiment provided by the present invention includes the following steps:

[0075] S101. The host computer sends the control instructions corresponding to the test cases to the electro-hydraulic controller;

[0076] S102. The electro-hydraulic controller controls the hydraulic support to perform actions according to the control instructions by using the solenoid valve driver on the hydraulic support, and displays the current action content corresponding to the control instructions in real time;

[0077] S103. The signal collector collects the current signal data corresponding to each channel in the solenoid valve driver in real time;

[0078] S104. The host computer identifies the current action content displayed by the electro-hydraulic controller, and analyzes the identified current action content and the current signal data corresponding to each channel to generate corresponding test results.

[0079] By adopting the above method, the test results of the electro-hydraulic controller of the hydraulic support can be obtained quickly and accurately, so as to solve the problem of relying on manual operations and visual inspections of testers during the test of the electro-hydraulic controller of the hydraulic support.

[0080] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0082] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0083] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0084] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A test system for an electro-hydraulic controller of a hydraulic support, characterized in that, Comprising: A host computer, configured to send control instructions corresponding to test cases to an electro-hydraulic controller; The electro-hydraulic controller, configured to, according to the control instructions, use a solenoid valve driver on a hydraulic support to control the hydraulic support to perform actions, and to display in real time the current action content corresponding to the control instructions; A signal collector, configured to collect in real time the current signal data corresponding to each channel in the solenoid valve driver; The host computer is further configured to identify the current action content displayed by the electro-hydraulic controller, and analyze the identified current action content and the current signal data corresponding to each channel to generate corresponding test results.

2. The electro-hydraulic controller test system for hydraulic supports according to claim 1, characterized in that, It further includes a CAN bus analyzer, and the CAN bus analyzer is connected to the host computer through USB; The host computer is further configured to convert the control instructions corresponding to the test cases into CAN protocol frames, and send the CAN protocol frames to the CAN bus analyzer; The CAN bus analyzer is configured to send the CAN protocol frames to the electro-hydraulic controller, so that the electro-hydraulic controller receives the control instructions corresponding to the test cases.

3. The electro-hydraulic controller test system for hydraulic supports according to claim 1, wherein The electro-hydraulic controller includes a screen, and the screen is configured to display in real time the current action content corresponding to the control instructions; the current action content includes text recording the current action content.

4. The electro-hydraulic controller test system for hydraulic supports according to claim 3, characterized in that, The system further includes a camera, and the camera is configured to take a picture of the screen and send the captured screen image to the host computer; The host computer includes an identification module, and the identification module is configured to identify the current action content displayed by the electro-hydraulic controller according to the screen image.

5. The electro-hydraulic controller test system for hydraulic support according to claim 4, characterized in that, The identification module includes: An image processing unit, configured to perform grayscale conversion, binarization and character region localization processing on the screen image to obtain an image to be recognized; An identification unit, configured to use an OCR engine to recognize the image to be recognized to obtain the current action content displayed by the electro-hydraulic controller; the current action content includes the name of the current execution action and the current execution action status corresponding to the hydraulic support.

6. The electro-hydraulic controller test system for hydraulic supports according to claim 1, characterized in that, The electro-hydraulic controller is communicatively connected to the solenoid valve driver on the hydraulic support; the signal collector is connected to the host computer through USB.

7. The electro-hydraulic controller test system for hydraulic support according to claim 1, characterized in that The signal collector includes: A signal collection unit, configured to collect in real time the active switch quantity signals corresponding to each channel in the solenoid valve driver; A status acquisition unit, configured to determine the current signal data corresponding to each channel according to the active switch quantity signals corresponding to each channel; the current signal data includes the current opening and closing status and the duration corresponding to the current opening and closing status.

8. The electro-hydraulic controller test system for hydraulic support according to claim 1, wherein, The host computer includes: A judgment module, configured to judge whether the current action content identified by the host computer matches the current signal data corresponding to each channel according to a preset logical rule; if it matches, it is determined that the test of the electro-hydraulic controller passes; if it does not match, it is determined that the test of the electro-hydraulic controller fails.

9. The electro-hydraulic controller test system for hydraulic supports according to any one of claims 1 to 8, characterized in that The host computer includes: A result recording module, configured to generate a test report from the test results and save the test report in the form of a log file.

10. A control method for a hydraulic support electro-hydraulic controller test system according to any one of claims 1 to 9, characterized in that, Comprising: The host computer sends the control instructions corresponding to the test cases to the electro-hydraulic controller; The electro-hydraulic controller controls the hydraulic support to perform actions according to the control instructions by using the solenoid valve driver on the hydraulic support, and displays the current action content corresponding to the control instructions in real time; The signal collector collects the current signal data corresponding to each channel in the solenoid valve driver in real time; The host computer identifies the current action content displayed by the electro-hydraulic controller, and analyzes the identified current action content and the current signal data corresponding to each channel to generate corresponding test results.