Sampling belt automatic control method and system for explosive and drug detection

Abstract

The invention belongs to the technical field of security check and explosion prevention, and particularly provides an automatic sampling belt control method and system for explosive and drug detection. The sampling belt automatic control method comprises the following steps: wiping a to-be-tested sample on the surface of a test area of a material belt to form a to-be-tested material belt area; the material belt is controlled to rotate, and the to-be-detected material belt area is arranged at a detection opening; heating the to-be-detected material belt area to vaporize the wiping molecules in the to-be-detected material belt area to obtain to-be-detected gaseous molecules; the gaseous molecules to be detected are pumped into the fluorescence capture molecule device from the detection opening through an air pump; controlling the fluorescence capture molecule device to obtain a test fluorescence value of the gaseous molecules to be tested; and matching the test fluorescence value with the fluorescence reference value to obtain a matching result, and determining the substance category of the to-be-tested sample according to the matching result, so that automatic detection of dangerous goods such as explosives and drugs can be realized, and the passenger flow passing rate under the requirements of large passenger flow, explosion prevention and poison prevention is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of security inspection and explosion prevention, and in particular to an automatic control method and system for a sampling belt used for explosive and drug detection. Background Art

[0002] With the continuous development of society, population mobility is increasing. While this mobility can bring long-term economic growth, it also creates difficulties in social governance, particularly in the areas of security and explosion prevention. Existing gates in subways, airplanes, and other locations are primarily used for ticket inspection and payment, lack explosion-proof functionality, and require support from appropriate hazardous materials security devices, which typically require manual identification and judgment. In high-volume applications, manual hazardous materials identification is inefficient and cannot meet the demands of high passenger flow, limiting passenger throughput.

[0003] Therefore, a technical solution is needed that can realize automatic detection of dangerous goods such as explosives and drugs, and improve the passenger flow rate under large passenger flow, explosion-proof and anti-toxic requirements. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a sampling belt automatic control method and system for explosives and narcotics detection.

[0005] The present invention provides a method for automatically controlling a sampling belt for detecting explosives and drugs, comprising the following specific steps:

[0006] Wipe the sample to be tested on the surface of the test area of ​​the material strip to form the material strip area to be tested;

[0007] Controlling the rotation of the material strip and placing the area of ​​the material strip to be tested at the testing port;

[0008] Heating the material strip region to be tested to gasify the wiped molecules in the material strip region to obtain gaseous molecules to be tested;

[0009] The gaseous molecules to be detected are pumped into the fluorescent capture molecule device from the detection port by an air pump;

[0010] Controlling the fluorescent capture molecule device to obtain a test fluorescence value of the gaseous molecule to be tested;

[0011] The test fluorescence value is matched with the fluorescence reference value to obtain a matching result, and the substance type of the sample to be tested is determined based on the matching result.

[0012] In a possible implementation, when heating the material strip region to be measured, the material strip region to be measured is first pushed to the parsing head by a pushing head, and the pushing head and the parsing head clamp and heat the material strip region to be measured;

[0013] An airway through hole is provided inside the analytical head;

[0014] The first end of the airway through hole close to the material strip area to be tested serves as the detection port, and the second end thereof is connected to the input port of the fluorescent capture molecule device;

[0015] The gaseous molecules to be detected enter the interior of the fluorescent capture molecule device through the airway holes.

[0016] In a possible implementation, when controlling the rotation of the material strip, the motor adopts an S-curve acceleration and deceleration control method to achieve speed control.

[0017] In a possible implementation, the fluorescence capture molecule device includes a fluorescence emitter, a fluorescence receiver, a fluorescence lens module, and a gas tunnel;

[0018] The fluorescence emitter and the fluorescence receiver are arranged opposite to each other;

[0019] The gas tunnel is arranged between the fluorescent emitter and the fluorescent receiver;

[0020] The fluorescent lens module is arranged in the gas tunnel;

[0021] The air pump is placed at the first end of the gas tunnel;

[0022] The second end of the gas tunnel is communicated with the second end of the airway through hole.

[0023] In a possible implementation, before wiping the sample to be tested on the surface of the test area of ​​the material belt, the following specific steps are also included:

[0024] The resolving head and the pushing head are heated to target temperature values.

[0025] The present invention provides a sampling belt automatic control system for explosive and drug detection, which is used to execute the above-mentioned sampling belt automatic control method, including a material belt control module and a fluorescence collection and analysis module;

[0026] The material belt control module includes a material belt, a driving unit, and a propulsion head;

[0027] The fluorescence collection and analysis module includes an air pump, a fluorescence capture molecule device, and an analytical head;

[0028] The driving unit is used to drive the material belt to rotate;

[0029] The pushing head and the analyzing head are used to heat the material strip area to be tested.

[0030] In a possible implementation, in the sampling belt automatic control system, the driving unit is further used to drive the propulsion head to move;

[0031] When heating the material strip area to be measured, firstly push the material strip area to be measured to the analyzing head by the pushing head;

[0032] The pushing head and the analyzing head clamp and heat the material strip area to be measured;

[0033] An airway through hole is provided inside the analytical head;

[0034] The first end of the airway through hole close to the material strip area to be tested serves as the detection port, and the second end thereof is connected to the input port of the fluorescent capture molecule device;

[0035] The gaseous molecules to be detected enter the interior of the fluorescent capture molecule device through the airway holes.

[0036] In a possible implementation, in the sampling belt automatic control system, the driving unit includes a feeding belt motor, a unloading belt motor, a propulsion motor, a feeding belt pulley, and a unloading belt pulley;

[0037] The material belt is wound around the upper belt wheel and the lower belt wheel;

[0038] The feeding belt motor is drivingly connected to the feeding belt pulley;

[0039] The unloading belt motor is drivingly connected to the unloading belt wheel;

[0040] The propulsion motor is drivingly connected to the propulsion head;

[0041] The unloading belt motor adopts an S-curve acceleration and deceleration control method to achieve speed control.

[0042] In a possible implementation, in the sampling belt automatic control system, the fluorescence capture molecule device includes a fluorescence emitter, a fluorescence receiver, a fluorescence lens module, and a gas tunnel;

[0043] The fluorescence emitter and the fluorescence receiver are arranged opposite to each other;

[0044] The gas tunnel is arranged between the fluorescent emitter and the fluorescent receiver;

[0045] The fluorescent lens module is arranged in the gas tunnel;

[0046] The air pump is placed at the first end of the gas tunnel;

[0047] The second end of the gas tunnel is communicated with the second end of the airway through hole.

[0048] In a possible implementation, in the sampling belt automatic control system, the fluorescence collection and analysis module further includes a consumables bin and a waste bin;

[0049] The consumables bin is used to store spare fluorescent lens modules;

[0050] The waste bin is used to recycle the discarded fluorescent lens modules;

[0051] The fluorescent lens module is constructed by a number of capture molecule lenses;

[0052] A fluorescent film is provided on the surface of the capture molecule lens.

[0053] The technical solution provided by the present invention has at least the following beneficial effects:

[0054] By wiping the sample to be tested on the surface of the test area of ​​the material belt, the wiped molecules are gasified and drawn into the fluorescent capture molecule device, and the material category of the sample to be tested is determined based on the test fluorescence value, thereby realizing automatic detection of dangerous goods such as explosives and drugs, which can effectively improve the passenger flow rate under large passenger flow, explosion-proof and anti-toxic requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 A flow chart of a sampling belt automatic control method for explosives and drug detection provided by an embodiment of the present invention;

[0056] Figure 2 A schematic diagram of the structure of a sampling belt automatic control system for explosives and drug detection provided by an embodiment of the present invention;

[0057] Figure 3 A structural block diagram of a drive unit provided in an embodiment of the present invention;

[0058] Figure 4 A schematic structural diagram of a fluorescent capture molecule device provided in an embodiment of the present invention;

[0059] Figure 5 A schematic diagram of the structure of the consumables bin provided in an embodiment of the present invention;

[0060] Figure 6 A schematic structural diagram of a material strip provided in an embodiment of the present invention;

[0061] Figure 7 A schematic diagram of component control logic provided by an embodiment of the present invention;

[0062] Figure 8 A schematic diagram of a communication link provided in an embodiment of the present invention;

[0063] Figure 9 The device action logic and fluorescence curve diagram provided by the embodiment of the present invention;

[0064] Figure 10 A flowchart for adding consumables to the consumables bin provided in an embodiment of the present invention;

[0065] In the accompanying drawings, 10, material belt control module; 11, material belt; 12, drive unit; 13, propulsion head;

[0066] 20. Fluorescence acquisition and analysis module; 21. Air pump; 22. Fluorescence capture molecule device; 23. Analytical head; 24. Consumables bin; 25. Waste bin; 111. Detection hole; 112. Photoelectric sensor; 121. Loading belt motor; 122. Unloading belt motor; 123. Propulsion motor; 124. Loading belt pulley; 125. Unloading belt pulley; 126. Support wheel; 221. Fluorescence emitter; 222. Fluorescence receiver; 223. Fluorescence lens module; 224. Gas tunnel; 2231. Capture molecule lens. DETAILED DESCRIPTION

[0067] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0068] Please refer to Figures 1 to 10 The present invention provides a method for automatically controlling a sampling belt for detecting explosives and drugs, comprising the following specific steps:

[0069] S100: Wipe the sample to be tested on the surface of the test area of ​​the material strip 11 to form a material strip area to be tested.

[0070] In this embodiment, the samples to be tested can be understood as prohibited items such as explosives and drugs. In actual applications, the outer surface of luggage containing prohibited items such as explosives and drugs may be contaminated with particles of the prohibited items. When the luggage is placed on the material belt 11, the particles of the prohibited items are rubbed onto the surface of the material belt 11. The surface area of ​​the material belt 11 where the luggage is located can be considered the test area. After the test sample is rubbed on the test area, it serves as the test area of ​​the material belt.

[0071] S200: Control the material strip 11 to rotate and place the material strip area to be tested at a testing port.

[0072] In this embodiment, Figure 6 Detection holes 111 can be provided in the area of ​​the material strip 11 to be tested. When the detection holes 111 rotate with the material strip 11 to the side where the detection port is located, a photoelectric sensor 112 provided on the side of the detection port detects that the detection holes 111 are in place, and the material strip area to be tested can be controlled to stop at the detection port. The photoelectric sensors 112 are provided in pairs on both sides of the material strip 11.

[0073] In a possible implementation, in step S200, when controlling the rotation of the material strip 11, the motor adopts an S-curve acceleration and deceleration control method to achieve speed control.

[0074] In this embodiment, the rotation of the strip 11 is controlled by a motor. The length of the strip sampling section is set to a given length, D, by design. The motor's speed is controlled using an S-curve acceleration and deceleration method. The S-curve's descending deceleration point is predicted based on speed and distance, allowing the strip 11 to smoothly and quickly rotate across the distance D to the inspection port. The strip sampling section length also equals the length of the strip 11 from the center of the strip area to be tested to the center of the inspection port.

[0075] S300: heating the material strip region to be tested, so as to gasify the wiping molecules in the material strip region to be tested, thereby obtaining gaseous molecules to be tested.

[0076] In one possible implementation, in step S300, when heating the material strip region to be measured, the material strip region to be measured is first pushed to the parsing head 23 by the pushing head 13, and the pushing head 13 and the parsing head 23 clamp and heat the material strip region to be measured;

[0077] The analytical head 23 is provided with an airway through hole inside;

[0078] The first end of the airway through hole close to the material strip area to be tested serves as the detection port, and the second end thereof is connected to the input port of the fluorescent capture molecule device 22;

[0079] The gaseous molecules to be detected enter the interior of the fluorescent capture molecule device 22 through the airway holes.

[0080] S400 : The gaseous molecules to be detected are pumped from the detection port into the fluorescent capture molecule device 22 by the air pump 21 .

[0081] In this embodiment, the fluorescent capture molecule device 22 can be a conventional thin film fluorescent sensor. When the air pump 21 operates to pump air, a negative pressure is formed inside the fluorescent capture molecule device 22, and the gaseous molecules to be detected are sucked into the fluorescent capture molecule device 22 under the action of the negative pressure.

[0082] In one possible implementation, Figure 4 , the fluorescent capture molecule device 22 includes a fluorescent emitter 221, a fluorescent receiver 222, a fluorescent lens module 223, and a gas tunnel 224;

[0083] The fluorescent light emitter 221 and the fluorescent light receiver 222 are arranged opposite to each other;

[0084] The gas tunnel 224 is disposed between the fluorescent emitter 221 and the fluorescent receiver 222;

[0085] The fluorescent lens module 223 is disposed in the gas tunnel 224;

[0086] The air pump 21 is placed at the first end of the gas tunnel 224;

[0087] The second end of the gas tunnel 224 is communicated with the second end of the airway through hole.

[0088] In this embodiment, combined with Figure 5 A fluorescence emitter 221 and a fluorescence receiver 222 are provided on the upper and lower sides of the fluorescence capture molecule device 22. The fluorescence emitter 221 emits light from bottom to top, passes through the capture molecule lens 2231 in the fluorescence lens module 223, and the upper fluorescence receiver 222 receives data, thereby capturing the fluorescence changes of the gaseous wiping molecules reacting with the fluorescent film on the capture molecule lens 2231. The final gas is discharged into the atmosphere by the air pump 21 through the gas tunnel 224.

[0089] S500: Control the fluorescent capture molecule device 22 to obtain the test fluorescence value of the gaseous molecule to be tested;

[0090] S600: Matching the test fluorescence value with the fluorescence reference value to obtain a matching result, and using the result to determine the substance type of the sample to be tested.

[0091] In this embodiment, the fluorescence reference value can be understood as the fluorescence value of known dangerous goods such as explosives and drugs. By matching the test fluorescence value with the fluorescence reference value, the substance category of the sample to be tested can be determined.

[0092] In a possible implementation, before wiping the sample to be tested on the surface of the test area of ​​the material strip 11, the following specific steps are also included:

[0093] The parsing head 23 and the propulsion head 13 are heated to target temperature values.

[0094] In this embodiment, the target temperature is determined based on the temperature required for the wiping molecules to vaporize. By preheating the decomposing head 23 and the propulsion head 13 to the target temperature, vaporization can be performed immediately after the material area to be tested reaches the inspection port, eliminating the need for preheating the decomposing head 23 and the propulsion head 13, effectively improving overall work efficiency.

[0095] like Figures 2 to 6 The present invention provides a sampling belt automatic control system for explosive and drug detection, which is used to execute the above-mentioned sampling belt automatic control method, including a material belt control module 10 and a fluorescence collection and analysis module 20;

[0096] The material belt control module 10 includes a material belt 11, a driving unit 12, and a propulsion head 13;

[0097] The fluorescence collection and analysis module 20 includes an air pump 21, a fluorescence capture molecule device 22, and an analytical head 23;

[0098] The driving unit 12 is used to drive the material belt 11 to rotate;

[0099] The pushing head 13 and the analyzing head 23 are used to heat the material strip area to be tested.

[0100] In this embodiment, the sampling belt automatic control system can be applied to gate security control in crowded areas such as subways, airports, and schools. The sampling belt automatic control system operates in two states: idle and running. The running state is divided into power-on self-test mode and user detection mode.

[0101] When the sampling belt automatic control system is powered on and started, the sampling belt automatic control system first enters the power-on self-test mode, detects consumables, calibrates the material belt 11, and heats the components (the push head 13 and the analytical head 23). The fluorescent capture molecule device 22 enters the working mode and completes the power-on self-test action. Then, the sampling belt automatic control system enters the idle state and waits for the user to trigger the user detection mode.

[0102] like Figure 6 , the detection area of ​​the material strip 11 ( Figure 6 A corresponding sensor (such as an infrared sensor) can be installed (at the center arrow). When a user approaches, the sensor detects the corresponding data, triggering the sampling belt automatic control system to enter user detection mode. In user detection mode, the user wipes the sample to be tested on the surface of the test area of ​​the material belt 11. The material belt 11 rotates downward to place the sample to be tested at the detection port. The push head 13 and the analytical head 23 on the detection port side clamp the material belt surface with the wiping molecules, heat the material belt surface, and gasify the wiping molecules. The gaseous molecules are then pumped into the fluorescent capture molecule device 22 by the air pump 21. The fluorescence value of the gas molecules, namely the test fluorescence value, is then obtained through the fluorescence emitter 224 and the fluorescence receiver 222.

[0103] When the sampling belt automatic control system enters the power-on self-test mode, the material belt 11 in the material belt control module 10 first moves forward to rotate the test area to the detection port, and then moves backward to return to the detection area for material self-calibration, which is used to calculate the remaining diameter D1 when the material belt 11 is included on the loading belt wheel 124, and the accumulated diameter D2 when the material belt 11 is included on the unloading belt wheel 125, so as to facilitate the calculation of the required S curve and the usage of the material belt 11.

[0104] In the user detection mode, the user first triggers the sampling tape automatic control system, the unloading tape wheel 125 rotates counterclockwise to place the tape area to be tested of the tape 11 at the detection port, and the pushing head 13 clamps the tape 11.

[0105] If the fluorescence collection and analysis module 20 determines that there is an explosive, the push head 13 releases the material belt 11, and the unloading belt wheel 125 rotates one grid counterclockwise (assuming that the distance of one grid on the material belt 11 is D), and the material belt area that has just been used on the material belt 11 is brought into the discarded area below. At the same time, the adjacent unused material belt area on the material belt 11 is used as a new test area. After cleaning the air path, the push head 13 re-clamps the material belt 11. If the fluorescence collection and analysis module 20 determines that the fluorescence value does not meet the parameter range, the push head 13 releases the material belt 11, and the air pump 21 extracts the gasified molecules in the air path through hole to clean the air path channel. After that, the push head 13 re-clamps the material belt 11 and makes a judgment until the fluorescence value meets the parameter range, and then it is determined that the user detection mode is completed.

[0106] If the fluorescence collection and analysis module 20 determines that there is no explosive, the push head 13 releases the material belt 11, and the loading pulley 124 rotates clockwise to return the test area of ​​the material belt 11 to the detection area, reuse the material belt, and update the current material belt reuse times in the integrated system module.

[0107] In a possible implementation, in the sampling belt automatic control system, the driving unit 12 is further used to drive the propulsion head 13 to move;

[0108] When heating the material strip area to be measured, the material strip area to be measured is first pushed to the analytical head 23 by the pushing head 13;

[0109] The pushing head 13 and the analyzing head 23 clamp and heat the material strip area to be measured;

[0110] The analytical head 23 is provided with an airway through hole inside;

[0111] The first end of the airway through hole close to the material strip area to be tested serves as the detection port, and the second end thereof is connected to the input port of the fluorescent capture molecule device 22;

[0112] The gaseous molecules to be detected enter the interior of the fluorescent capture molecule device 22 through the airway holes.

[0113] It should be pointed out that when the pushing head 13 and the analyzing head 23 clamp the material strip area to be tested, the material strip 11 and the airway hole set inside the analyzing head 23 are not in a sealed state, ensuring that when the air pump 21 works to generate negative pressure inside the fluorescent capture molecule device 22, the air flow in the airway hole can flow.

[0114] In one possible implementation, in the sampling belt automatic control system, such as Figure 3 The driving unit 12 includes a feeding belt motor 121, a discharging belt motor 122, a propulsion motor 123, a feeding belt pulley 124, and a discharging belt pulley 125;

[0115] The material belt 11 is wound around the upper material belt wheel 124 and the lower material belt wheel 125;

[0116] The feeding belt motor 121 is drivingly connected to the feeding belt pulley 124;

[0117] The unloading belt motor 122 is drivingly connected to the unloading belt wheel 125;

[0118] The propulsion motor 123 is drivingly connected to the propulsion head 13;

[0119] The unloading belt motor 122 adopts an S-curve acceleration and deceleration control method to achieve speed control.

[0120] In this embodiment, the feeding belt motor 121, the unloading belt motor 122 and the propulsion motor 123 are all conventional motors. When the feeding belt motor 121 drives the feeding belt pulley 124 to rotate clockwise, the unloading belt motor 122 does not work, and the unloading belt pulley 125 rotates accordingly. When the unloading belt motor 122 drives the unloading belt pulley 125 to rotate counterclockwise, the feeding belt motor 121 does not work, and the feeding belt pulley 124 rotates accordingly. When the propulsion motor 123 drives the propulsion head 13 to move forward, the propulsion head 13 can clamp the material belt 11. When the propulsion motor 123 drives the propulsion head 13 to move backward, the propulsion head 13 and the material belt 11 can be loosened. Combined Figure 2 、 3 6, the feeding pulley 124 and the unloading pulley 125 are distributed in the upper and lower positions. The driving unit 12 also includes a supporting wheel 126, which is arranged at the turning point of the material belt 11. Figure 6 A sensor can be set at the arrow to trigger the user detection mode. After wiping the sample to be tested, the unloading pulley 125 rotates counterclockwise, the material belt 11 rotates, and the loading pulley 124 follows the rotation. When the sensor detects that the area of ​​the material belt to be tested reaches the detection port, the unloading pulley 125 stops moving. Figure 2 The middle pusher head 13 moves leftward, clamping the analytical head 23. The high temperatures of the pusher head 13 and the analytical head 23 vaporize the molecules wiped from the material strip 11. The left air pump 21 then draws the vaporized molecules into the fluorescent capture molecule device 22. After the substance type of the sample to be tested is finally determined, the pusher head 13 moves rightward and releases. The loading pulley 124 rotates clockwise, and the material strip 11 returns to its original position. The sampling strip automatic control system enters an idle state.

[0121] In one possible implementation, in the sampling belt automatic control system, such as Figure 4 , the fluorescent capture molecule device 22 includes a fluorescent emitter 221, a fluorescent receiver 222, a fluorescent lens module 223, and a gas tunnel 224;

[0122] The fluorescent light emitter 221 and the fluorescent light receiver 222 are arranged opposite to each other;

[0123] The gas tunnel 224 is disposed between the fluorescent emitter 221 and the fluorescent receiver 222;

[0124] The fluorescent lens module 223 is disposed in the gas tunnel 224;

[0125] The air pump 21 is placed at the first end of the gas tunnel 224;

[0126] The second end of the gas tunnel 224 is communicated with the second end of the airway through hole.

[0127] In one possible implementation, in the sampling belt automatic control system, such as Figure 2 and Figure 5 , the fluorescence collection and analysis module 20 also includes a consumables bin 24 and a waste bin 25;

[0128] The consumables bin 24 is used to store the spare fluorescent lens modules 223;

[0129] The waste bin 25 is used to recycle the discarded fluorescent lens module 223;

[0130] The fluorescent lens module 223 is constructed by a number of capture molecule lenses 2231;

[0131] A fluorescent film is provided on the surface of the capture molecule lens 2231 .

[0132] In this embodiment, both the consumables bin 24 and the waste bin 25 adopt conventional structures.

[0133] In specific implementation, the sampling belt automatic control system includes not only the material belt control module 10 and the fluorescence acquisition and analysis module 20, but also a consumables control module, a display interaction control module, a communication interaction module, a storage bin control module, a component control module and an integrated system module.

[0134] In a first specific embodiment, the integrated system module is used to record the consumable historical data (e.g., replacement time) of the current fluorescent lens module 223 in the fluorescent capture molecule device 22, and can obtain the light value of the fluorescent emitter 221 (i.e., the current light value of the consumable) and the fluorescence value of the fluorescent receiver 222 (i.e., the consumable fluorescence value) in the current idle state through the fluorescent capture molecule device 22.

[0135] When the sampling belt automatic control system is in the idle state, if the integrated system module detects that a consumable (the fluorescence lens module 223 in the fluorescence capture molecule device 22) has reached its service life, it interrupts the idle state and enters the maintenance state, controlling the consumable control module to perform a consumable replacement operation. After the consumable replacement operation is completed, the system returns to the idle state. The integrated system module determines whether consumable replacement is necessary based primarily on recorded consumable historical data, the current consumable light value, and the consumable fluorescence value. If the corresponding data exceeds a preset value, replacement is determined. A technician can operate the interactive control module to click the "Replace Consumable" button to perform the replacement. During the consumable replacement operation, the integrated system module issues a command to the consumable control module, which controls the pusher to exit, remove the consumable from the fluorescence capture molecule device 22 (i.e., remove the consumable from the optical path) and place it in the waste bin 25. Then, a spare fluorescence lens module 223 is removed from the consumable bin 24 and dropped into the fluorescence capture molecule device 22. The pusher then advances, calibrates the values, and updates the parameters. The integrated system module records the relevant data of the new consumables and updates the status to idle, waiting for the user to trigger the entry into the user detection mode.

[0136] In a second specific embodiment, Figure 6 , the material strip 11 is divided into different material strip areas, the length of each material strip area is D, and the sample to be tested acts on the detection area ( Figure 6 The strip area to the left of the inspection area is the used strip area, and the strip area to the right is the unused strip area. Each strip area has a corresponding upper limit on usage, which is counted by the number of test samples wiped. The integrated system module is also used to record historical data of the strip 11, namely, strip history data (such as strip replacement time, number of times the current strip area has been used, and the number of strip areas).

[0137] When the sampling tape automatic control system is in an idle state, if the integrated system module detects that the material tape area of ​​the current detection area of ​​the material tape 11 has reached its maximum service life, the material tape area update process is executed, the upper material tape wheel 123 rotates to release an unused material tape area, and the lower material tape wheel 123 rotates to store a used material tape area. The material tape 11 moves one grid to the left in the detection area, and the integrated system module updates the material tape historical data. It should be pointed out that before executing the material tape area update process, it is necessary to first determine whether the material tape 11 is completely used up. When the material tape 11 is completely used up, the sampling tape automatic control system sends a device alarm signal to prompt the replacement of a new material tape 11. If it is not used up, the material tape area update process is executed.

[0138] If the fluorescence collection and analysis module 20 determines that there is no explosive, the push head 13 releases the material belt 11, and the loading pulley 124 rotates clockwise to return the test area of ​​the material belt 11 to the detection area, reuse the material belt, and update the current material belt reuse times in the integrated system module.

[0139] In a third specific embodiment, when the sampling belt automatic control system is in an idle state, if the integrated system module detects that all the materials in the consumables bin have been dropped and there are no consumables in the consumables bin, the integrated system module sends an alarm signal to the display interaction control module and the communication interaction module, informing the device that the consumables have been used up and that they need to be replaced or added. The technician can add consumables to the consumables bin through the display interaction control module, such as Figure 10 As shown, click the "Replace Consumable Bin" button, the consumable bin moves forward to the limit, remove the fixing screws around the consumable bin, add consumables into the consumable bin, and then put the consumable bin back. After fixing the screws, click the "Install Consumable Bin" button, the integrated system module moves the consumable bin backward and installs it in place. The software takes out the corresponding consumable algorithm evaluation configuration from the storage device according to the currently set consumables and replaces the evaluation parameters in the algorithm program.

[0140] In the above three specific implementation methods, the integrated system automatically or semi-automatically replaces the corresponding consumable parts, thereby reducing user misoperation and unifying the replacement methods of consumable parts.

[0141] In this embodiment, the entire cycle logic of the device user triggers the operation, such as Figure 9 As shown, the real-time fluorescence curve graph is shown below, the material belt 11 is represented by Y1 above, the propulsion head 13 is represented by Y2, and the fluorescence capture molecule device 22 is represented by Y3. The equipment operation stages include the material belt operation stage W1, the pusher propulsion stage W2, the fluorescence algorithm working stage W3, the pusher retraction stage W4, and the material belt rotation stage W5. The comprehensive system optimizes each stage to speed up the overall response speed of the system to meet the requirements of low passage time and high passage rate.

[0142] In the material belt operation phase W1 and the pusher propulsion phase W2, the S-curve speed control is used and the length of the material belt sampling section is designed to be D. The arrival time and the propulsion motor time are predicted according to the length of the material belt sampling section, and the propulsion head 13 moves synchronously to propel the material belt 11.

[0143] In the fluorescence algorithm working phase W3, the propulsion head 13 is pushed into place, the gaseous wiping molecules are sucked in, and the algorithm calculation starts.

[0144] In the pusher retraction phase W4, the algorithm calculation result is completed, and the pusher head 13 is retracted immediately, and then the material belt 11 rotates.

[0145] In the material belt rotation phase W5, the material belt 11 rotates into place and the system enters an idle state, waiting for user triggering.

[0146] When the algorithm determines that the fluorescence state is abnormal, a reassessment is required. This means the device operates in the following order: Y1: running, Y2: advancing, Y3: calculating, Y2: exiting. This repeats until Y2: advancing again, Y3: calculating again, Y2: exiting. This repeats several times until Y3: releasing, Y1: reversing. Fluorescence emitted from the consumable surface fluctuates due to system logic and sample vapors, accelerating the overall system response to meet the requirements of low transit time and high throughput rates.

[0147] In this embodiment, the display interaction control module is provided to effectively enhance the user experience of the sampling strip automatic control system. In specific implementations, the display interaction control module may include a main interface, a fluorescent interface, an information interface, a settings interface, an algorithm settings interface, and the like. Users can exchange information through the display interaction control module and the integrated system module, thereby improving the controllability of the sampling strip automatic control system and enabling users to timely understand the system's operating status.

[0148] The main interface can be used to display the status of device consumables, material strips, temperature, fluorescence, and system status (such as the power-on self-test mode and user detection mode in idle and running states), so that users can understand the current workflow of the system. The information interface can be used to display various preset parameters of the system, including but not limited to delay parameters, temperature parameters, motor parameters, etc. It can also be used to fine-tune device-related parameters to suit different factory equipment or scenarios. The fluorescence interface is used to display the system fluorescence value, fluorescence change status, and calculation status. The setting interface is used to set the actions and operations of each module in the system, including but not limited to motor operation, material strip operation, and consumables bin operation. It can be used for on-site debugging or equipment control by maintenance personnel. The algorithm setting interface is used to set parameters related to the fluorescence algorithm, including but not limited to alarm settings, weight settings, calculation parameter settings, etc.

[0149] The communication interaction module is responsible for information interaction with external devices and controlling devices through external protocols. It is consistent with the principle of the display interaction control module and mainly provides external devices with operations including but not limited to reporting device online, reporting device actions, setting device parameters, etc.

[0150] As an embodiment 1, Figure 7 As shown, technicians can use the interactive control module's human-machine interface to modify specific device parameters and, through actuators, activate the device's (sampling belt automatic control system) drive components. Within the interface, technicians can view device output log information, fluorescence changes, and action logic, and maintain and modify parameters to meet maintenance needs.

[0151] As a second embodiment, Figure 8As shown, the main board of the device interacts with external devices regularly, and has a built-in database. The device operation log, fluorescence changes, and action logic are regularly uploaded to the server of a remote network computer through the 4G module. The database of the remote network computer receives and stores the messages for analysis; it is uploaded to the local client in real time through serial port 1 to achieve daily device status monitoring and device upgrades; it is connected to Party A's computer in real time through serial port 2 to achieve cooperative development.

[0152] As a third embodiment, technicians can establish a communication link through the communication interaction module on the mainboard.

[0153] The device logic configuration file is transmitted from the computer to calibrate the device parameters at the factory to account for the calibration differences in the manufacturing and installation of different device components.

[0154] The device firmware is transmitted from the computer to synchronize the firmware upgrade of the on-site device.

[0155] The computer transmits algorithm weight parameters or motion parameters, automatically replaces consumables and determines material processes, forwards fluorescence change data to the computer, monitors equipment movement, gaseous explosive molecules and fluorescence data changes in real time, and reversely statistically verifies the fluorescence properties of the material, including but not limited to the material's recovery properties, the material's fluorescence quenching properties for explosive molecules, the material's effective properties, etc., establishes a database of equipment motion parameter and process parameter data corresponding to the material, and optimizes including but not limited to propulsion system time, fluorescence acquisition time, and material service life to meet the requirements for rapid and effective equipment detection under actual conditions of large passenger flow.

[0156] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A method for automatically controlling a sampling belt for detecting explosives and drugs, characterized in that: The specific steps include: Wipe the sample to be tested on the surface of the test area of ​​the material strip to form the material strip area to be tested; Controlling the rotation of the material strip and placing the area of ​​the material strip to be tested at the testing port; Heating the material strip region to be tested to gasify the wiped molecules in the material strip region to obtain gaseous molecules to be tested; The gaseous molecules to be detected are pumped into the fluorescent capture molecule device from the detection port by an air pump; Controlling the fluorescent capture molecule device to obtain a test fluorescence value of the gaseous molecule to be tested; The test fluorescence value is matched with the fluorescence reference value to obtain a matching result, and the substance type of the sample to be tested is determined based on the matching result.

2. The sampling band automatic control method according to claim 1, characterized in that: When heating the material strip area to be measured, the material strip area to be measured is first pushed to the parsing head by a pushing head, and the pushing head and the parsing head clamp and heat the material strip area to be measured; An airway through hole is provided inside the analytical head; The first end of the airway through hole close to the material strip area to be tested serves as the detection port, and the second end thereof is connected to the input port of the fluorescent capture molecule device; The gaseous molecules to be detected enter the interior of the fluorescent capture molecule device through the airway holes.

3. The sampling band automatic control method according to claim 2, characterized in that: When controlling the rotation of the material belt, the motor adopts an S-curve acceleration and deceleration control method to achieve speed control.

4. The automatic sampling band control method according to claim 2, characterized in that: The fluorescence capture molecule device includes a fluorescence emitter, a fluorescence receiver, a fluorescence lens module, and a gas tunnel; The fluorescence emitter and the fluorescence receiver are arranged opposite to each other; The gas tunnel is arranged between the fluorescent emitter and the fluorescent receiver; The fluorescent lens module is arranged in the gas tunnel; The air pump is placed at the first end of the gas tunnel; The second end of the gas tunnel is communicated with the second end of the airway through hole.

5. The sampling band automatic control method according to claim 2, characterized in that: Before wiping the sample to be tested on the test area surface of the material belt, the following specific steps are also included: The resolving head and the pushing head are heated to target temperature values.

6. A sampling belt automatic control system for explosives and drug detection, used to execute the sampling belt automatic control method according to claim 1, characterized in that: Including material belt control module and fluorescence collection and analysis module; The material belt control module includes a material belt, a driving unit, and a propulsion head; The fluorescence collection and analysis module includes an air pump, a fluorescence capture molecule device, and an analytical head; The driving unit is used to drive the material belt to rotate; The pushing head and the analyzing head are used to heat the material strip area to be tested.

7. The automatic sampling belt control system according to claim 6, characterized in that: The driving unit is also used to drive the propulsion head to move; When heating the material strip area to be measured, firstly push the material strip area to be measured to the analyzing head by the pushing head; The pushing head and the analyzing head clamp and heat the material strip area to be measured; An airway through hole is provided inside the analytical head; The first end of the airway through hole close to the material strip area to be tested serves as the detection port, and the second end thereof is connected to the input port of the fluorescent capture molecule device; The gaseous molecules to be detected enter the interior of the fluorescent capture molecule device through the airway holes.

8. The sampling belt automatic control system according to claim 7, characterized in that: The driving unit includes a feeding belt motor, a discharging belt motor, a propulsion motor, a feeding belt pulley, and a discharging belt pulley; The material belt is wound around the upper belt wheel and the lower belt wheel; The feeding belt motor is drivingly connected to the feeding belt pulley; The unloading belt motor is drivingly connected to the unloading belt wheel; The propulsion motor is drivingly connected to the propulsion head; The unloading belt motor adopts an S-curve acceleration and deceleration control method to achieve speed control.

9. The sampling belt automatic control system according to claim 7, characterized in that: The fluorescence capture molecule device includes a fluorescence emitter, a fluorescence receiver, a fluorescence lens module, and a gas tunnel; The fluorescence emitter and the fluorescence receiver are arranged opposite to each other; The gas tunnel is arranged between the fluorescent emitter and the fluorescent receiver; The fluorescent lens module is arranged in the gas tunnel; The air pump is placed at the first end of the gas tunnel; The second end of the gas tunnel is communicated with the second end of the airway through hole.

10. The sampling belt automatic control system according to claim 9, characterized in that: The fluorescence collection and analysis module also includes a consumables bin and a waste bin; The consumables bin is used to store spare fluorescent lens modules; The waste bin is used to recycle the discarded fluorescent lens modules; The fluorescent lens module is constructed by a number of capture molecule lenses; A fluorescent film is provided on the surface of the capture molecule lens.

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