Mine explosion-proof lamp induction function test system and method

Abstract

The application provides a mine explosion-proof lamp induction function test system and method, and relates to the technical field of explosion-proof lamp testing. The method comprises a PLC controller, a control panel, a power module, an illuminance sensor, a display and parameter setting module, a mobile device, a laser range finder, an adjusting mechanism, a timer and a test warning module. The system and method control the mine explosion-proof lamp, the power module, the mobile device, the adjusting mechanism, the timer and the test warning module through the PLC controller. Meanwhile, the PLC controller receives and calculates the illuminance, distance and time data fed back by the illuminance sensor, the laser range finder and the timer, calculates the distance data measured by the laser range finder, obtains the induction distance and induction angle data of the mine explosion-proof lamp, and sends the running state and test results of the system to the display and parameter setting module. The system and method improve the test reliability of the induction function index of the mine explosion-proof lamp, and improve the induction function inspection accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof lighting testing technology, and in particular to a testing system and method for the sensing function of explosion-proof lighting fixtures used in mining. Background Technology

[0002] Explosion-proof mine roadway lights, as the main electrical equipment for underground lighting, are suitable for use in underground mining area roadways and corners, bottom parking lots, chambers, underground coal bunkers, substations, and other locations. Traditional explosion-proof mine lights operate in a full-power, long-time mode, but the light emitted by the lights is only usable when people are passing through the roadway, resulting in a significant waste of electrical resources. Explosion-proof mine roadway sensor lights can intelligently detect moving people or objects. When a person or object approaches, they activate full-power operation; after the person or object leaves, they enter standby or low-power operation mode. Explosion-proof mine roadway sensor lights have advantages such as long service life, low power consumption, and energy saving and environmental protection, and have been widely used in underground coal mines.

[0003] Mining explosion-proof induction lights for roadways comply with smart mining industry policies and energy-saving and environmental protection requirements, representing the future development direction of the mining explosion-proof lighting industry. Due to the complex underground safety production environment in my country's coal mines (including explosive gases such as methane and dust, darkness, humidity, and sudden temperature changes), the quality and safety requirements for underground equipment are significantly higher than those for surface equipment. The sensing function is the main indicator that distinguishes mining explosion-proof induction lights for roadways from conventional mining explosion-proof lighting fixtures. Failures in the sensing function, such as an excessively small sensing angle or a short delay time, will cause malfunctions in the roadway lighting system. Currently, sensing functions are mainly tested manually, resulting in low accuracy and unreliable results for key indicators. This leads to inconsistent quality and low safety of mining explosion-proof induction lights for roadways, posing potential safety hazards to coal mine production. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a testing system and method for the sensing function of mine explosion-proof lighting fixtures, which addresses the shortcomings of the prior art and enables reliable testing of the sensing function of mine explosion-proof lighting fixtures, thereby improving the quality and safety of mine explosion-proof lighting fixtures.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] On one hand, this invention provides a testing system for the sensing function of mine explosion-proof lighting fixtures, including a PLC controller, a control panel, a power module, an illuminance sensor, a display and parameter setting module, a moving device, a laser rangefinder, an adjustment mechanism, a timer, and a test warning module; wherein, the input terminal of the power module is electrically connected to the power grid, and the output terminal of the power module is electrically connected to the power input terminals of the PLC controller, the illuminance sensor, the display and parameter setting module, and the mine explosion-proof lighting fixture; the control signal input terminal of the adjustment mechanism is electrically connected to the height adjustment signal output terminal of the PLC controller; the signal output terminal of the control panel is electrically connected to the signal input terminal of the power module, controlling the power module to supply power to the PLC controller, the illuminance sensor, and the display and parameter setting module; the illuminance signal output terminal of the illuminance sensor is electrically connected to the illuminance signal input terminal of the PLC controller, and the illuminance sensor is fixed to a vertical reference point of the mine explosion-proof lighting fixture on the ground. The test terminal faces the explosion-proof lighting fixture; the signal output terminal of the display and parameter setting module is electrically connected to the display and parameter setting signal input terminal of the PLC controller, and the signal input terminal is electrically connected to the signal output terminal of the PLC controller; the control signal input terminal of the mobile device is electrically connected to the control signal output terminal of the PLC controller; the fixed end of the laser rangefinder is mechanically connected to the mobile device, and the signal output terminal of the laser rangefinder is connected to the laser signal input terminal of the PLC controller via a wireless network; the signal input terminal of the timer is electrically connected to the timing signal output terminal of the PLC controller, and the output terminal is electrically connected to the timing signal input terminal of the PLC; the signal input terminal of the test warning module is electrically connected to the test warning signal output terminal of the PLC controller; the power control signal output terminal of the PLC controller for mining explosion-proof lighting fixtures is electrically connected to the control signal input terminal of the power module, used to control the power module to supply power to the mining explosion-proof lighting fixtures.

[0007] Preferably, the PLC controller is used to control the mine explosion-proof lighting fixtures, power supply module, moving device, adjustment mechanism, timer and test warning module, and simultaneously receive and calculate illuminance, distance and time data fed back by illuminance sensor, laser rangefinder and timer, and send the system's operating status and test results to the display and parameter setting module.

[0008] Preferably, the control panel includes a start button, a stop button, and an emergency stop button. The start button and stop button are used to control the power supply from the power module to the PLC controller and the test warning module. The emergency stop button is used to stop the power supply from the power module to the entire system in case of an accident during the testing of the sensing function of the mine explosion-proof lamp.

[0009] Preferably, the power module has multiple outputs of different voltages to provide working power to the PLC controller, illuminance sensor, display and parameter setting module, and mine explosion-proof lighting fixture. The power input of the PLC controller, illuminance sensor, and display and parameter setting module is controlled by the control panel, and the power input of the mine explosion-proof lighting fixture is controlled by the PLC.

[0010] Preferably, the illuminance sensor is used to collect illuminance information of mine explosion-proof lighting fixtures and feed the illuminance data back to the PLC controller;

[0011] The display and parameter setting module is used to set system parameters such as working voltage, illuminance requirement value and rated power of the mine explosion-proof lighting fixture, and to display the system operating status and test results;

[0012] The mobile device moves on the ground corresponding to the mine explosion-proof lamp under the control of the PLC controller, and is used to provide a trigger signal for the sensing function of the mine explosion-proof lamp.

[0013] The laser rangefinder is used to test the distance between the mobile device and the mine explosion-proof lamp and the vertical reference point of the mine explosion-proof lamp on the ground;

[0014] The adjustment mechanism adjusts the suspension height of the mine explosion-proof lighting fixture according to the PLC control signal;

[0015] The timer is used to record the delay time of the sensing function of the explosion-proof mining lamp;

[0016] The test warning module provides warning signals for the testing process of mine explosion-proof lighting fixtures through warning lights.

[0017] On the other hand, the present invention also provides a method for testing the sensing function of explosion-proof mining lights, comprising the following steps:

[0018] Step 1: Press the start button on the control panel. The PLC controller, test alarm module, display and parameter setting module will be powered on. The PLC controller will perform a self-test. If the system status is normal, proceed to Step 2 to perform the explosion-proof lighting function test. Otherwise, stop the explosion-proof lighting function test.

[0019] Step 2: Based on the height of the location where the mine explosion-proof lighting fixture is used, the PLC controller controls the height of the adjustment mechanism to suspend the mine explosion-proof lighting fixture at the required height, and sets ground marks at the corresponding vertical reference point on the ground.

[0020] Step 3: The PLC controller controls the power supply module to output power to the mine explosion-proof lamp, the mine explosion-proof lamp is powered on and running, and the PLC controller test warning module enters the warning state;

[0021] Step 4: Draw a straight line L along the ground markings. When the mine explosion-proof lighting fixture is running at low power, the PLC controller controls the moving device to move along the straight line L from a distance toward the ground markings at a fixed speed.

[0022] Step 5: The PLC controller receives the illuminance data collected in real time by the illuminance sensor and records the illuminance data E1 and E2 of the mine explosion-proof lamp under low power consumption and high power consumption respectively.

[0023] Step 6: The PLC controller controls the power module to stop supplying power to the mine explosion-proof lights and controls the test warning module to stop the warning state, and the mine explosion-proof lights are turned off;

[0024] Step 7: The PLC controls the moving device to return to the initial position, the PLC controller controls the power module to supply power to the mine explosion-proof lamp, controls the test warning module to enter the warning state, and the mine explosion-proof lamp is powered on and running.

[0025] Step 8: The PLC controller controls the mobile device to move along the straight line where the ground mark is located from the initial movement position to the ground mark at a fixed speed. The PLC receives the illuminance data collected in real time by the illuminance sensor. When the illuminance data changes from E1 to E2, the PLC controller sends a stop operation command to the mobile device. The location of the mobile device is the sensing point of the mine explosion-proof lamp.

[0026] Step 9: The mobile device stops running. At the same time, the PLC controller sends a timing command to the timer. The timer starts timing. When the illuminance data changes from E1 to E2, the PLC controller controls the counter to stop counting. At the same time, the counter feeds back the recorded time data to the PLC controller. The PLC controller obtains the delay time data sensed by the mine explosion-proof lamp.

[0027] Step 10: The laser rangefinder measures the distance from the mobile device to the mine explosion-proof lights and ground markings in real time, and feeds the distance data back to the PLC controller;

[0028] Step 11: The PLC controller calculates the distance data measured by the laser rangefinder to obtain the sensing distance and sensing angle data of the mine explosion-proof lighting fixture;

[0029] Step 12: The PLC controller controls the power module to stop supplying power to the mine explosion-proof lights, controls the test warning module to stop the warning state, and the mine explosion-proof lights are turned off;

[0030] Step 13: Press the Stop button on the control panel to stop the system.

[0031] The specific method for step 11 is as follows:

[0032] Let point O be the lowest point of the mine explosion-proof lighting fixture's suspension position, point A be the laser rangefinder's position, point B be the foremost position of the moving device, and point P be the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder's position. Then, the distance L between the laser rangefinder's position and the foremost position of the moving device can be measured using the laser rangefinder. AB Through testing, the distance L between the lowest point of the mine explosion-proof lighting fixture and the position of the laser rangefinder was obtained. OA and the position L of the laser rangefinder AP The data is then used to determine the sensing distance L of the mine explosion-proof lighting fixture. BO As shown in the formula below:

[0033]

[0034] In the formula, L BO L is the sensing distance of explosion-proof mining lights. BP The distance from point B at the front end of the mobile device to point P, the intersection of the vertical line between the mine explosion-proof lamp and the ground and the horizontal line at the same height as the laser rangefinder, is given by the following formula:

[0035] L BP =L AP -L AB (2)

[0036] In the formula, L AB The distance is from point A, the location of the laser rangefinder, to point B, the foremost position of the mobile device.

[0037] L OP The distance from point P, the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder, to point O, the lowest point of the mine explosion-proof lighting fixture's suspension position, is given by the following formula:

[0038]

[0039] In the formula, L AO L is the distance from point A, the location of the laser rangefinder, to point O, the lowest point of the mine explosion-proof lighting fixture's suspension position. AP The distance is the distance from point A, the location of the laser rangefinder, to point P, the intersection of the vertical line between the mine explosion-proof lighting fixture and the horizontal line at the same height as the laser rangefinder.

[0040] The sensing distance L of the mine explosion-proof lamp is obtained according to formulas (2) and (3). BO As shown in the formula below:

[0041]

[0042] The sensing angle of the mine explosion-proof lighting fixture is the angle between the two sensing points on the same plane and the lowest point O of the suspension position of the mine explosion-proof lighting fixture. The size of the sensing angle is θ = 2∠BOP, where ∠BOP is the angle between the sensing distance of the mine explosion-proof lighting fixture and the distance from the front end position B of the moving device to the intersection point P of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder. Its sine value is shown in the following formula:

[0043]

[0044] The beneficial effects of adopting the above technical solution are as follows: The mining explosion-proof lighting fixture induction function testing system provided by the present invention improves the testing reliability of the induction function indicators of mining explosion-proof lighting fixtures, enhances the accuracy and efficiency of induction function testing, increases the technological added value of products, ensures the quality and safety of mining explosion-proof lighting fixtures, provides technical support for the induction function testing of new mining explosion-proof lighting fixtures in the process of new product development and type testing, and promotes the continuous and healthy development of the testing and inspection and mining explosion-proof lighting fixture field. Attached Figure Description

[0045] Figure 1 This is a structural block diagram of the mining explosion-proof lighting fixture induction function testing system provided in an embodiment of the present invention;

[0046] Figure 2 A flowchart of the method for testing the sensing function of explosion-proof mining lamps provided in this embodiment of the invention;

[0047] Figure 3 This is a schematic diagram illustrating the calculation of sensing distance and sensing angle provided in an embodiment of the present invention. Detailed Implementation

[0048] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0049] In this embodiment, the mining explosion-proof lighting fixture sensing function testing system, such as Figure 1As shown, the system includes a PLC controller, control panel, power module, illuminance sensor, display and parameter setting module, moving device, laser rangefinder, adjustment mechanism, timer, and test warning module. The power module's input is connected to the mains power, and its output is connected to the power inputs of the PLC controller, illuminance sensor, display and parameter setting module, and the mining explosion-proof lighting fixture. The control signal input of the adjustment mechanism is connected to the height adjustment signal output of the PLC controller. The signal output of the control panel is connected to the signal input of the power module, controlling the power module to supply power to the PLC controller, illuminance sensor, and display and parameter setting module. The illuminance signal output of the illuminance sensor is connected to the illuminance signal input of the PLC controller. The illuminance sensor is fixed at a vertical reference point on the ground, with its test end facing the explosion-proof surface. The lighting fixtures are equipped with a display and parameter setting module whose signal output is electrically connected to the display and parameter setting signal input of the PLC controller, and whose signal input is electrically connected to the signal output of the PLC controller. The control signal input of the mobile device is electrically connected to the control signal output of the PLC controller. The fixed end of the laser rangefinder is mechanically connected to the mobile device, and the signal output of the laser rangefinder is connected to the laser signal input of the PLC controller via a wireless network. The signal input of the timer is electrically connected to the timing signal output of the PLC controller, and its output is electrically connected to the timing signal input of the PLC. The signal input of the test warning module is electrically connected to the test warning signal output of the PLC controller. The power control signal output of the mining explosion-proof lighting fixtures from the PLC controller is electrically connected to the control signal input of the power module, used to control the power module to supply power to the mining explosion-proof lighting fixtures.

[0050] In this embodiment, the PLC controller is the core of the mining explosion-proof lighting fixture sensing function test system. It is used to control the mining explosion-proof lighting fixture, power module, moving device, adjustment mechanism, timer and test warning module. At the same time, it receives and calculates the illuminance, distance and time data fed back by the illuminance sensor, laser rangefinder and timer, and sends the system's operating status and test results to the display and parameter setting module.

[0051] The control panel includes a start button, a stop button, and an emergency stop button. The start and stop buttons are used to control the power supply from the power module to the PLC controller and the test warning module. The emergency stop button is used to stop the power module from outputting power to the entire system in case of an accident during the testing of the induction function of the mine explosion-proof lighting fixture.

[0052] The power module has multiple outputs of different voltages to provide power to the PLC controller, illuminance sensor, display and parameter setting module, and mine explosion-proof lighting fixtures. The power input of the PLC controller, illuminance sensor, and display and parameter setting module is controlled by the control panel, while the power input of the mine explosion-proof lighting fixtures is controlled by the PLC.

[0053] The illuminance sensor is used to collect illuminance information of explosion-proof lighting fixtures used in mining and to feed the illuminance data back to the PLC controller;

[0054] The display and parameter setting module is used to set system parameters such as working voltage, illuminance requirement value and rated power of the mine explosion-proof lighting fixture, and to display the system operating status and test results;

[0055] The mobile device moves on the ground corresponding to the mine explosion-proof lamp under the control of the PLC controller, and is used to provide a trigger signal for the sensing function of the mine explosion-proof lamp.

[0056] The laser rangefinder is used to test the distance between the mobile device and the mine explosion-proof lamp and the vertical reference point of the mine explosion-proof lamp on the ground;

[0057] The adjustment mechanism adjusts the suspension height of the mine explosion-proof lighting fixture according to the PLC control signal;

[0058] The timer is used to record the delay time of the sensing function of the explosion-proof mining lamp;

[0059] The test warning module provides a warning signal for the testing process of mine explosion-proof lighting fixtures through a warning light. In this embodiment, after the test warning module is powered on, the warning light is yellow and the warning status is red.

[0060] In this embodiment, the method for testing the sensing function of explosion-proof mining lights is as follows: Figure 2 As shown, it includes the following steps:

[0061] Step 1: Press the start button on the control panel. The PLC controller, test alarm module, display and parameter setting module will be powered on. The PLC controller will perform a self-test. If the system status is normal, proceed to Step 2 to test the explosion-proof lighting function. Otherwise, stop the explosion-proof lighting function test.

[0062] Step 2: Based on the height of the location where the mine explosion-proof lighting fixture is used, the PLC controller controls the height of the adjustment mechanism to suspend the mine explosion-proof lighting fixture at the required height, and sets ground marks at the corresponding vertical reference point on the ground.

[0063] Step 3: The PLC controller controls the power supply module to output power to the mine explosion-proof lamp. The mine explosion-proof lamp is powered on and running, and the PLC controller test warning module changes from yellow to red flashing state and enters the warning state.

[0064] Step 4: Draw a straight line L along the ground markings. When the mine explosion-proof lighting fixture is running at low power, the PLC controller controls the moving device to move along the straight line L from a distance toward the ground markings at a fixed speed.

[0065] Step 5: The PLC controller receives the illuminance data collected in real time by the illuminance sensor and records the illuminance data E1 and E2 of the mine explosion-proof lamp when it is in low power consumption and high power consumption respectively (the mine explosion-proof lamp is in low power consumption mode before sensing and in high power consumption mode after sensing).

[0066] Step 6: The PLC controller controls the power module to stop supplying power to the mine explosion-proof lights and controls the test warning module to change from red flashing to yellow, thus turning off the mine explosion-proof lights;

[0067] Step 7: The PLC controls the moving device to return to the initial position. The PLC controller controls the power module to supply power to the mine explosion-proof lamp. The control test warning module changes from yellow to red flashing state to enter the warning state. The mine explosion-proof lamp is powered on and running.

[0068] Step 8: The PLC controller controls the mobile device to move along the straight line where the ground mark is located from the initial movement position to the ground mark at a fixed speed. The PLC receives the illuminance data collected in real time by the illuminance sensor. When the illuminance data changes from E1 to E2, the PLC controller sends a stop operation command to the mobile device. The location of the mobile device is the sensing point (i.e., the trigger point) of the mine explosion-proof lamp.

[0069] Step 9: The mobile device stops running. At the same time, the PLC controller sends a timing command to the timer, and the timer starts timing. When the illuminance data changes from high power consumption to low power consumption, the PLC controller controls the counter to stop counting. At the same time, the counter feeds back the recorded time data to the PLC controller. The PLC controller obtains the delay time data of the mine explosion-proof lamp (the mine explosion-proof lamp changes to high power consumption mode after sensing, and changes to low power consumption mode after a delay after the sensing signal disappears).

[0070] Step 10: The laser rangefinder measures the distance from the mobile device to the mine explosion-proof lights and ground markings in real time, and feeds the distance data back to the PLC controller;

[0071] Step 11: The PLC controller calculates the distance data measured by the laser rangefinder to obtain the sensing distance and sensing angle data of the mine explosion-proof lighting fixture;

[0072] Step 12: The PLC controller controls the power module to stop supplying power to the mine explosion-proof lights, and controls the test warning module to change from red flashing to yellow, and the mine explosion-proof lights are turned off;

[0073] Step 13: Press the Stop button on the control panel to stop the system.

[0074] In this embodiment, the calculation of the sensing distance and sensing angle of the mine explosion-proof lighting fixture is as follows: Figure 3 As shown, the specific method is as follows:

[0075] Let point O be the lowest point of the mine explosion-proof lighting fixture's suspension position, point A be the laser rangefinder's position, point B be the foremost position of the moving device, and point P be the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder's position. Then, the distance L between the laser rangefinder's position and the foremost position of the moving device can be measured using the laser rangefinder. AB Through testing, the distance L between the lowest point of the mine explosion-proof lighting fixture and the position of the laser rangefinder was obtained. OA and the position L of the laser rangefinder AP The data is then used to determine the sensing distance L of the mine explosion-proof lighting fixture. BO As shown in the formula below:

[0076]

[0077] In the formula, L BO The sensing distance of explosion-proof mining lights, expressed in meters (m), L BP The distance from point B at the front end of the mobile device to point P, the intersection of the vertical line between the mine explosion-proof lamp and the ground and the horizontal line at the same height as the laser rangefinder, is expressed in meters (m) and is shown in the following formula:

[0078] L BP =L AP -L AB (2)

[0079] In the formula, L AB The distance is from point A of the laser rangefinder to point B, the foremost point of the mobile device, in meters (m).

[0080] L OP The distance from point P, the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder, to point O, the lowest point of the mine explosion-proof lighting fixture's suspension position, is expressed in meters (m) and is shown in the following formula:

[0081]

[0082] In the formula, L AO L is the distance from point A (the location of the laser rangefinder) to point O (the lowest point of the mine explosion-proof lighting fixture), expressed in meters (m). AP The distance from point A, the location of the laser rangefinder, to point P, the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder, is expressed in meters (m).

[0083] The sensing distance L of the mine explosion-proof lamp is obtained according to formulas (2) and (3). BO As shown in the formula below:

[0084]

[0085] The sensing angle of a mine explosion-proof lighting fixture is the angle between the sensing points on both sides of the same plane and point O, the lowest point of the mine explosion-proof lighting fixture's suspension position. Figure 3 As shown, the sensing angle is θ = 2∠BOP, where ∠BOP is the angle between the sensing distance of the mine explosion-proof lamp and the distance from point B at the front end of the moving device to the intersection point P of the vertical line between the mine explosion-proof lamp and the ground and the horizontal line at the same height as the laser rangefinder. Its sine value is shown in the following formula:

[0086]

[0087] The value of Sin∠BOP can be obtained through calculation, and the value of the induced angle θ can be obtained by consulting the sine value table.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A testing system for the sensing function of explosion-proof mining lamps, characterized in that: The system includes a PLC controller, control panel, power module, illuminance sensor, display and parameter setting module, moving device, laser rangefinder, adjustment mechanism, timer, and test warning module. The power module's input is connected to the mains power, and its output is connected to the power inputs of the PLC controller, illuminance sensor, display and parameter setting module, and the mine explosion-proof lighting fixture. The control signal input of the adjustment mechanism is connected to the height adjustment signal output of the PLC controller. The signal output of the control panel is connected to the signal input of the power module, controlling the power module to supply power to the PLC controller, illuminance sensor, and display and parameter setting module. The illuminance signal output of the illuminance sensor is connected to the illuminance signal input of the PLC controller. The illuminance sensor is fixed at a vertical reference point on the ground above the mine explosion-proof lighting fixture, with its test end facing the fixture. The signal output terminal of the display and parameter setting module is electrically connected to the display and parameter setting signal input terminal of the PLC controller, and the signal input terminal is electrically connected to the signal output terminal of the PLC controller; the control signal input terminal of the mobile device is electrically connected to the control signal output terminal of the PLC controller; the fixed end of the laser rangefinder is mechanically connected to the mobile device, and the signal output terminal of the laser rangefinder is connected to the laser signal input terminal of the PLC controller via a wireless network; the signal input terminal of the timer is electrically connected to the timing signal output terminal of the PLC controller, and the output terminal is electrically connected to the timing signal input terminal of the PLC; the signal input terminal of the test warning module is electrically connected to the test warning signal output terminal of the PLC controller; the power control signal output terminal of the PLC controller for mining explosion-proof lighting fixtures is electrically connected to the control signal input terminal of the power module, used to control the power module to supply power to the mining explosion-proof lighting fixtures; The illuminance sensor is used to collect illuminance information of explosion-proof lighting fixtures for mining and to feed the illuminance data back to the PLC controller; The display and parameter setting module is used to set system parameters such as working voltage, illuminance requirement value and rated power of the mine explosion-proof lighting fixture, and to display the system operating status and test results; The mobile device moves on the ground corresponding to the mine explosion-proof lamp under the control of the PLC controller, and is used to provide a trigger signal for the sensing function of the mine explosion-proof lamp. The laser rangefinder is used to test the distance between the mobile device and the mine explosion-proof lamp and the vertical reference point of the mine explosion-proof lamp on the ground; The adjustment mechanism adjusts the suspension height of the mine explosion-proof lighting fixture according to the PLC control signal; The timer is used to record the delay time of the sensing function of the explosion-proof mining lamp; The test warning module provides warning signals for the testing process of mine explosion-proof lighting fixtures through warning lights; The PLC controller is used to control the mine explosion-proof lighting fixtures, power supply module, moving device, adjustment mechanism, timer and test warning module. It also receives and calculates the illuminance, distance and time data fed back by the illuminance sensor, laser rangefinder and timer, and sends the system's operating status and test results to the display and parameter setting module. The testing method for the induction function testing system of the mining explosion-proof lighting fixture includes the following steps: Step 1: Press the start button on the control panel to power on the PLC controller, test alarm module, and display and parameter setting module; Step 2: The PLC controller controls the height of the adjustment mechanism according to the height of the place where the mine explosion-proof lighting fixture is used, so that the mine explosion-proof lighting fixture is suspended at the required height, and sets ground marks at the corresponding vertical reference point on the ground. Step 3: The PLC controller controls the power supply module to output power to the mine explosion-proof lamp. The mine explosion-proof lamp starts running after being powered on, and the PLC controller test warning module changes from yellow to red flashing state and enters the warning state. Step 4: Draw a straight line L along the ground markings. When the mine explosion-proof lighting fixture is running at low power, the PLC controller controls the moving device to move along the straight line L from a distance toward the ground markings at a fixed speed. Step 5: The PLC controller receives the illuminance data collected in real time by the illuminance sensor and records the illuminance data E1 and E2 of the mine explosion-proof lamp under low power consumption and high power consumption respectively. Step 6: The PLC controller controls the power module to stop supplying power to the mine explosion-proof lights and controls the test warning module to stop the warning state, and the mine explosion-proof lights are turned off; Step 7: The PLC controls the moving device to return to the initial position, the PLC controller controls the power module to supply power to the mine explosion-proof lamp, controls the test warning module to enter the warning state, and the mine explosion-proof lamp is powered on and running. Step 8: The PLC controller controls the mobile device to move along the straight line where the ground mark is located from the initial movement position to the ground mark at a fixed speed. The PLC receives the illuminance data collected in real time by the illuminance sensor. When the illuminance data changes from E1 to E2, the PLC controller sends a stop operation command to the mobile device. The location of the mobile device is the sensing point of the mine explosion-proof lamp. Step 9: The mobile device stops running. At the same time, the PLC controller sends a timing command to the timer. The timer starts timing. When the illuminance data changes from E1 to E2, the PLC controller controls the counter to stop counting. At the same time, the counter feeds back the recorded time data to the PLC controller. The PLC controller obtains the delay time data sensed by the mine explosion-proof lamp. Step 10: The laser rangefinder measures the distance from the mobile device to the mine explosion-proof lights and ground markings in real time, and feeds the distance data back to the PLC controller; Step 11: The PLC controller calculates the distance data measured by the laser rangefinder to obtain the sensing distance and sensing angle data of the mine explosion-proof lighting fixture; Let point O be the lowest point of the mine explosion-proof lighting fixture's suspension position, point A be the laser rangefinder's position, point B be the foremost position of the moving device, and point P be the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder's position. Then, the distance between the laser rangefinder's position and the foremost position of the moving device can be measured using the laser rangefinder. Through testing, the distance between the lowest point of the mine explosion-proof lighting fixture and the position of the laser rangefinder was obtained. and the position of the laser rangefinder The data is then used to determine the sensing distance of the explosion-proof mining lights. As shown in the formula below: （1） In the formula, The sensing distance for explosion-proof lighting fixtures used in mining. The distance from point B at the front end of the mobile device to point P, the intersection of the vertical line between the mine explosion-proof lamp and the ground and the horizontal line at the same height as the laser rangefinder, is given by the following formula: （2） In the formula, The distance is from point A, the location of the laser rangefinder, to point B, the foremost position of the mobile device. The distance from point P, the intersection of the vertical line between the mine explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder, to point O, the lowest point of the mine explosion-proof lighting fixture's suspension position, is given by the following formula: （3） In the formula, This is the distance from point A, the location of the laser rangefinder, to point O, the lowest point where the mine explosion-proof lighting fixture is suspended. The distance is the distance from point A, the location of the laser rangefinder, to point P, the intersection of the vertical line between the mine explosion-proof lighting fixture and the horizontal line at the same height as the laser rangefinder. The sensing distance of the mine explosion-proof lamp can be obtained according to formulas (2) and (3). As shown in the formula below: （4） The sensing angle of a mine explosion-proof lighting fixture is the angle between the two sensing points on the same plane and point O, the lowest point of the fixture's suspension position. The size of the sensing angle is... , Let be the angle between the sensing distance of the mining explosion-proof lighting fixture and the distance from point B, the front end position of the moving device, to point P, the intersection of the vertical line between the mining explosion-proof lighting fixture and the ground and the horizontal line at the same height as the laser rangefinder. Its sine value is shown in the following formula: （5） Step 12: The PLC controller controls the power module to stop supplying power to the mine explosion-proof lights, controls the test warning module to stop the warning state, and the mine explosion-proof lights are turned off; Step 13: Press the Stop button on the control panel to stop the system.

2. The mining explosion-proof lighting fixture sensing function testing system according to claim 1, characterized in that: The control panel includes a start button, a stop button, and an emergency stop button. The start and stop buttons are used to control the power supply from the power module to the PLC controller and the test warning module. The emergency stop button is used to stop the power module from outputting power to the entire system in case of an accident during the testing of the sensing function of the mine explosion-proof lighting fixture.

3. The mining explosion-proof lighting fixture sensing function testing system according to claim 1, characterized in that: The power module has multiple outputs of different voltages to provide working power for the PLC controller, illuminance sensor, display and parameter setting module, and mine explosion-proof lighting fixtures. The power input of the PLC controller, illuminance sensor, and display and parameter setting module is controlled by the control panel, while the power input of the mine explosion-proof lighting fixtures is controlled by the PLC.

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