Special detection device and system for sudden stop control circuit board

Abstract

The utility model discloses a special detection device and system for an emergency stop control circuit board, and the device comprises an emergency stop signal module, a circuit board to be detected, an emergency stop control module, a detection circuit module, a display module, and a power supply module. The defect that the emergency stop function response speed cannot be detected in a traditional detection mode is successfully overcome. By accurately measuring the sudden stop signal response time and the sudden stop control response time, the performance of the circuit board under the sudden stop condition can be accurately judged, and a quantitative basis is provided for evaluating the performance of the circuit board. The timing function of the detection circuit module further ensures the accuracy of the determination of the emergency stop signal response time and the emergency stop control response time, so that the evaluation result is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a dedicated testing device and system for emergency stop control circuit boards. Background Technology

[0002] In the field of circuit board testing, traditional testing methods primarily rely on measuring the voltage and current at various output ports or test points to determine if the circuit board's functionality meets standards, thus confirming its qualification. However, when a circuit board possesses an emergency stop control function, this conventional testing method reveals significant shortcomings. It cannot detect the circuit board's response speed to emergency stop signals or whether the emergency stop control response speed meets practical application requirements. In real-world applications, such as industrial automated production lines and elevator control systems, the response speed of the emergency stop control function is crucial; a delayed emergency stop response can lead to serious safety accidents. Therefore, there is an urgent need for a testing device and system capable of accurately detecting the emergency stop function and response speed of emergency stop control circuit boards. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a dedicated testing device and system for emergency stop control circuit boards.

[0004] The technical solution is: a dedicated testing device for emergency stop control circuit boards, comprising:

[0005] An emergency stop signal module includes an emergency stop switch, which outputs a high-level signal when the emergency stop switch is pressed.

[0006] The circuit board under test is connected to the emergency stop signal module. When it receives the high-level signal, it sends an emergency stop control command to the emergency stop control module.

[0007] Upon receiving the emergency stop control command, the emergency stop control module executes the emergency stop control operation and sends back an execution signal.

[0008] The detection circuit module is connected to the emergency stop signal module and the emergency stop control module. When it receives the high-level signal, it starts timing; when it receives the execution signal, it stops timing.

[0009] The display module is connected to the detection circuit module and is used to receive and display the detection results output by the detection circuit module;

[0010] The power supply module provides DC power to the entire testing device.

[0011] Preferably, the circuit board to be tested includes:

[0012] The first controller is used to process the received high-level signal and generate an emergency stop control command based on it, which is then sent to the emergency stop control module.

[0013] A first optocoupler is provided between the first controller and the emergency stop signal module to realize level conversion and isolated transmission of the emergency stop signal;

[0014] A second optocoupler is provided between the first controller and the emergency stop control module to realize level conversion and isolated transmission of emergency stop control commands.

[0015] Preferably, the emergency stop control module includes a relay, the first end of the relay coil is connected to the receiving end of the second optocoupler, the first end of the normally open contact of the relay is connected to the load and the detection circuit module; the second end of the relay coil and the normally open contact are connected to the power supply module.

[0016] Preferably, the detection circuit module includes:

[0017] The second controller is used to start the timing function when the high-level signal is received, and to stop the timing function when the execution signal is received, while processing and outputting the timing result;

[0018] A third optocoupler is provided between the second controller and the emergency stop signal module to realize level conversion and isolated transmission of the emergency stop signal;

[0019] A fourth optocoupler is provided between the second controller and the emergency stop control module to realize level conversion and isolated transmission of the execution signal.

[0020] Preferred options also include:

[0021] The frame is used to secure the entire testing device.

[0022] The bracket, installed within the frame, is used to place the circuit board to be tested and makes electrical connection with the test points of the circuit board to be tested through a pin.

[0023] Fixing clips are installed on both sides of the bracket to press the circuit board to be tested onto the bracket, ensuring good contact between the test point and the ejector pin;

[0024] A power switch, connected to the power supply module, is used to control the power supply to the device.

[0025] The power interface is connected to the power switch and is used to connect the power cord to the mains power.

[0026] Preferably, it also includes a voltmeter, which is connected to the test point of the circuit board under test via a pin, and is used to display the voltage value of the test point.

[0027] Preferably, the power supply module includes:

[0028] AC / DC power supply is used to convert AC mains power into DC power to provide DC power input for the detection device;

[0029] The DC / DC power supply is used to step down the DC voltage output by the AC / DC power module to power the display module.

[0030] A detection system for a circuit board with an emergency stop control function includes at least one detection device for the circuit board with the emergency stop control function.

[0031] Preferably, it also includes a host computer connected to the detection circuit module in the detection device, used to receive and store the detection results of the detection circuit module, and to perform further data analysis and processing.

[0032] Through the above technical solutions, the beneficial effects of this utility model are as follows:

[0033] 1. This invention can effectively detect the emergency stop signal processing and emergency stop control functions of the emergency stop control circuit board, making up for the shortcomings of traditional detection methods that cannot detect the emergency stop function response speed; by accurately measuring the emergency stop signal response time and emergency stop control response time, the performance of the circuit board under emergency stop conditions can be accurately judged.

[0034] 2. By using the timing function of the detection circuit module, the emergency stop signal response time and emergency stop control response time can be accurately measured, providing a quantitative basis for evaluating the performance of the circuit board, helping engineers to determine whether the circuit board meets the needs of actual applications, and promptly identify potential problems;

[0035] 3. Optocouplers are used for signal transmission between modules, which realizes level conversion and isolation, effectively avoids signal interference, and improves the accuracy and stability of detection. Attached Figure Description

[0036] Figure 1 This is a module structure diagram of a special testing device for an emergency stop control circuit board according to this utility model.

[0037] Figure 2 This is a circuit diagram of a special testing device for an emergency stop control circuit board according to this utility model.

[0038] Figure 3 This is a schematic diagram of the structure of a special testing device for an emergency stop control circuit board according to this utility model.

[0039] Figure 4 This is a module structure diagram of a dedicated testing system for an emergency stop control circuit board according to this utility model.

[0040] In the diagram: 1-Frame, 2-Power switch, 3-Emergency stop switch, 4-Voltmeter, 5-Display module, 6-Bracket, 7-Circuit board to be tested, 8-Fixing clip, 9-Pin, 10-DC / DC power supply, 11-AC / DC power supply, 12-Power interface. Detailed Implementation

[0041] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figure 1 To be continued Figure 4 The detailed description of the embodiments will make this clear. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0042] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0043] like Figure 1 As shown, a dedicated testing device for an emergency stop control circuit board includes:

[0044] The emergency stop signal module includes an emergency stop switch, which outputs a high-level signal when the emergency stop switch is pressed.

[0045] The circuit board under test is connected to the emergency stop signal module. When it receives a high-level signal, it sends an emergency stop control command to the emergency stop control module.

[0046] Upon receiving an emergency stop control command, the emergency stop control module executes the emergency stop control operation and sends back an execution signal.

[0047] The detection circuit module, connected to the emergency stop signal module and the emergency stop control module, starts timing when it receives a high-level signal and stops timing when it receives an execution signal.

[0048] The display module, connected to the detection circuit module, is used to receive and display the detection results output by the detection circuit module;

[0049] The power supply module provides DC power to the entire testing device.

[0050] In one specific embodiment, such as Figure 2 As shown, the circuit board to be tested includes:

[0051] The first controller U2 is used to process the received high-level signal and generate an emergency stop control command based on it, which is then sent to the emergency stop control module.

[0052] A first optocoupler U4 is provided between the first controller U2 and the emergency stop signal module to realize the level conversion and isolated transmission of the emergency stop signal, improve the stability and anti-interference capability of the signal transmission, and ensure that the first controller accurately receives the emergency stop signal;

[0053] A second optocoupler U5 is installed between the first controller U2 and the emergency stop control module to realize the level conversion and isolation transmission of the emergency stop control command, so as to avoid signal interference leading to misoperation.

[0054] Upon receiving an emergency stop control command, the emergency stop control module executes the emergency stop control operation, specifically controlling the on / off state of the load RL and feeding back an execution signal. This module includes a relay K1. The first end of the relay K1 coil is connected to the receiving end of the second optocoupler U5, and the first end of the normally open contact of the relay K1 is connected to the load and the detection circuit module. The second end of the relay K1 coil and the normally open contact is connected to the power supply module. When the relay K1 coil is energized, the normally open contact closes, and the load is energized; when the coil is de-energized, the normally open contact opens, and the load is de-energized.

[0055] The detection circuit module is connected to the emergency stop signal module and the emergency stop control module, such as... Figure 2 As shown, this module includes:

[0056] The second controller U1 is used to start the timing function when a high-level signal is received and to stop the timing function when an execution signal is received, while processing and outputting the timing results.

[0057] A third optocoupler U3 is provided between the second controller U1 and the emergency stop signal module to realize the level conversion and isolated transmission of the emergency stop signal, ensuring that the second controller can accurately and stably receive the emergency stop signal, avoiding signal interference and level mismatch problems, and improving the reliability of signal transmission and the stability of the detection system.

[0058] A fourth optocoupler U6 is installed between the second controller U1 and the emergency stop control module to realize the level conversion and isolation transmission of the execution signal, ensuring that the execution signal received by the second controller is accurate and error-free, and further improving the accuracy of the detection circuit module in detecting the response time of the emergency stop control operation and the performance of the entire detection system.

[0059] The specific working principle of the dedicated testing device in this application is as follows: When the operator presses the emergency stop switch 3 in the emergency stop signal module, the emergency stop signal module outputs a high-level signal. After level conversion and isolation transmission by the first optocoupler, this signal is received by the first controller of the circuit board under test. The first controller processes the signal and generates an emergency stop control command, which is transmitted to the emergency stop control module through the second optocoupler. At the same time, the second controller of the testing circuit module receives the high-level signal and starts the timing function. The relay of the emergency stop control module acts according to the received command, controls the load to switch on and off, and feeds back an execution signal. After receiving the execution signal, the second controller of the testing circuit module stops timing, processes the timing result, and sends it to the display module for display.

[0060] like Figure 3 As shown, the dedicated testing device also includes a frame 1, a frame 6, a fixing clip 8, a power switch 2, a power interface 12, and a voltmeter 4. The frame 1 is used to fix all components of the testing device; the frame 6 is installed inside the frame 1 and is used to place the circuit board 7 to be tested. The frame 6 makes contact with the test points of the circuit board 7 through the pins 9 to achieve electrical connection; the fixing clips 8 are installed on both sides of the frame 6 to press the circuit board 7 to be tested firmly onto the frame 6, ensuring good contact between the test points and the pins 9; the power switch 2 is connected to the power supply module to control the power supply of the device; the power interface 12 is connected to the power switch 2 to connect the power cord to the mains power; the voltmeter 4 is connected to the test points of the circuit board 7 through the pins to display the voltage value of the test points, allowing the operator to understand the power supply status of the circuit board.

[0061] In the above, the power supply module includes an AC / DC power supply 11 and a DC / DC power supply 10. The AC / DC power supply 11 converts AC mains power into DC power to provide DC power input for the detection device. The DC / DC power supply 10 steps down the DC voltage output by the AC / DC power supply to power the display module 5.

[0062] In another embodiment, such as Figure 4 As shown, a detection system for a circuit board with an emergency stop control function includes at least one detection device for the circuit board with the emergency stop control function.

[0063] In addition, a host computer is provided, which connects to the detection circuit module in the testing device. Its main function is to receive and store the testing results from the detection circuit module. The host computer possesses powerful data analysis and processing capabilities, enabling further analysis and processing of the large amount of stored testing data. Operators can view detailed testing reports and statistical analysis results through the host computer's interface, and evaluate the quality of the circuit board based on the analysis results to determine whether the circuit board meets design requirements and practical application needs. If abnormal data is detected, the host computer can promptly issue an alarm, reminding operators to take appropriate measures.

[0064] In summary, the dedicated testing device and system for emergency stop control circuit boards of the present invention possess significant technical advantages. First, this application can effectively test the emergency stop signal processing and emergency stop control functions of the emergency stop control circuit board, successfully overcoming the deficiency of traditional testing methods in detecting the emergency stop function response speed. By accurately measuring the emergency stop signal response time and the emergency stop control response time, the performance of the circuit board under emergency stop conditions can be accurately determined, providing a quantitative basis for evaluating the circuit board's performance. Second, the timing function of the testing circuit module further ensures the accuracy of the measurement of the emergency stop signal response time and the emergency stop control response time, making the evaluation results more reliable. Furthermore, the use of optocouplers for signal transmission between modules achieves level conversion and isolation, effectively avoiding signal interference and significantly improving the accuracy and stability of the testing, providing a strong guarantee for the quality testing of emergency stop control circuit boards.

[0065] The above description is a further detailed explanation of the present utility model in conjunction with specific embodiments, and it should not be considered that the specific implementation of the present utility model is limited to this. For those skilled in the art to which the present utility model pertains and related fields, any extensions, operation methods, and data substitutions made based on the technical solution concept of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A dedicated testing device for an emergency stop control circuit board, characterized in that, include: An emergency stop signal module includes an emergency stop switch, which outputs a high-level signal when the emergency stop switch is pressed. The circuit board under test is connected to the emergency stop signal module. When it receives the high-level signal, it sends an emergency stop control command to the emergency stop control module. Upon receiving the emergency stop control command, the emergency stop control module executes the emergency stop control operation and sends back an execution signal. The detection circuit module is connected to the emergency stop signal module and the emergency stop control module. When it receives the high-level signal, it starts timing; when it receives the execution signal, it stops timing. The display module is connected to the detection circuit module and is used to receive and display the detection results output by the detection circuit module; The power supply module provides DC power to the entire testing device.

2. The dedicated testing device for an emergency stop control circuit board according to claim 1, characterized in that, The circuit board to be tested includes: The first controller is used to process the received high-level signal and generate an emergency stop control command based on it, which is then sent to the emergency stop control module. A first optocoupler is provided between the first controller and the emergency stop signal module to realize level conversion and isolated transmission of the emergency stop signal; A second optocoupler is provided between the first controller and the emergency stop control module to realize level conversion and isolated transmission of emergency stop control commands.

3. The dedicated testing device for an emergency stop control circuit board according to claim 2, characterized in that, The emergency stop control module includes a relay, the first end of the relay coil is connected to the receiving end of the second optocoupler, the first end of the normally open contact of the relay is connected to the load and the detection circuit module; the second end of the relay coil and the normally open contact are connected to the power supply module.

4. The dedicated testing device for an emergency stop control circuit board according to claim 3, characterized in that, The detection circuit module includes: The second controller is used to start the timing function when the high-level signal is received, and to stop the timing function when the execution signal is received, while processing and outputting the timing result; A third optocoupler is provided between the second controller and the emergency stop signal module to realize level conversion and isolated transmission of the emergency stop signal; A fourth optocoupler is provided between the second controller and the emergency stop control module to realize level conversion and isolated transmission of the execution signal.

5. A dedicated testing device for an emergency stop control circuit board according to any one of claims 1-4, characterized in that, Also includes: The frame is used to secure the entire testing device. The bracket, installed within the frame, is used to place the circuit board to be tested and makes electrical connection with the test points of the circuit board to be tested through a pin. Fixed clamps are installed on both sides of the bracket to press the circuit board to be tested onto the bracket, ensuring that the test point is in contact with the ejector pin; A power switch, connected to the power supply module, is used to control the power supply to the device. The power interface is connected to the power switch and is used to connect the power cord to the mains power.

6. The dedicated testing device for an emergency stop control circuit board according to claim 5, characterized in that, It also includes a voltmeter, which is connected to the test point of the circuit board under test via a pin, and is used to display the voltage value of the test point.

7. The dedicated testing device for an emergency stop control circuit board according to claim 1, characterized in that, The power supply module includes: AC / DC power supply is used to convert AC mains power into DC power to provide DC power input for the detection device; The DC / DC power supply is used to step down the DC voltage output by the AC / DC power module to power the display module.

8. A detection system for a circuit board with an emergency stop control function, characterized in that, The detection device includes at least one circuit board with emergency stop control function as described in any one of claims 1 to 7.

9. The detection system for a circuit board with emergency stop control function according to claim 8, characterized in that, It also includes a host computer, which is connected to the detection circuit module in the detection device to receive and store the detection results of the detection circuit module for further data analysis and processing.

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