A fluorescence sensor detection module, device and system thereof

Abstract

The present application discloses a fluorescence sensor detection module, device and system thereof, wherein the fluorescence sensor detection module comprises: a first bracket, a paper tape arranged on the first bracket and a fluorescence sensor rotatably connected to the first bracket, wherein the paper tape is used to collect samples, the fluorescence sensor has a working mode and a maintenance mode and comprises a sensor air inlet, wherein in the working mode, the sensor air inlet of the fluorescence sensor contacts the paper tape so that the sample collected by the paper tape can enter the fluorescence sensor for detection, wherein when the fluorescence sensor is rotated relative to the first bracket so that the sensor air inlet is away from the paper tape, the fluorescence sensor is switched to the maintenance mode to facilitate the maintenance operation of the fluorescence sensor.

Description

Technical Field

[0001] The present application belongs to the field of fluorescence detection technology, and specifically relates to a fluorescence sensor detection module, device and system thereof. Background Art

[0002] Fluorescence quenching technology uses the fluorescent material coated on the glass substrate to detect specific substances by its fluorescence quenching property. After using the fluorescence quenching device for a period of time, the device needs to be repaired, especially the sensitive thin film device needs to be replaced, but the current fluorescence quenching device is not convenient for replacing sensitive thin film devices. Summary of the invention

[0003] In view of this, the present application provides a fluorescence sensor detection module and device on the one hand to solve the problem that it is inconvenient to replace sensitive thin film devices in existing fluorescence quenching devices.

[0004] To achieve the above objectives, the present application provides a fluorescence sensor detection module, including:

[0005] First bracket;

[0006] A paper tape arranged on the first support, the paper tape being used for collecting samples;

[0007] A fluorescence sensor rotatably connected to the first bracket, the fluorescence sensor including a sensor air inlet and having a working mode and a maintenance mode, wherein in the working mode, the sensor air inlet of the fluorescence sensor contacts the paper tape so that samples collected by the paper tape enter the fluorescence sensor for detection, wherein when the fluorescence sensor is rotated relative to the first bracket so that the sensor air inlet of the fluorescence sensor is away from the paper tape, the fluorescence sensor switches to the maintenance mode.

[0008] Optionally, the fluorescence sensor includes a sensor base and a sensor body, a fixed part, a rotating part and a connecting part respectively installed on the sensor base, the sensor body includes the sensor air inlet, the fixed part is connected to the rotating part through the connecting part, the fixed part and the rotating part both pass through the first bracket, and the first bracket is provided with a first sliding groove that is slidably connected to the rotating part, wherein the rotating part slides along the first sliding groove with the fixed part as the rotation center to switch the working mode and maintenance mode of the fluorescence sensor.

[0009] Optionally, a driving position adjustment component and a driving component for driving the paper tape to rotate are mounted on the first bracket, and the driving position adjustment component is slidably connected to the driving component.

[0010] Optionally, the driving assembly comprises a motor wheel and a stepper motor mounted on the first bracket and connected to the motor wheel, and the outer side of the motor wheel is used to wind the paper tape;

[0011] The driving position adjustment assembly includes a screw and a first guide rail mounted on the first bracket and slidably connected to the motor wheel. The screw is threadedly connected to the motor wheel and is used to drive the motor wheel to slide along the first guide rail to compensate for the length error of the paper tape.

[0012] Optionally, the drive position adjustment assembly further includes an elastic member, one end of which is fixed on the first bracket, and the other end of which is connected to the motor wheel.

[0013] Optionally, the fluorescence sensor detection device further comprises a diffuse reflection switch, a control unit and a detection unit, wherein the control unit is conductively connected to the diffuse reflection switch and the detection unit;

[0014] The diffuse reflection switch is used to detect the position information of the sample, and outputs a level signal when the position information of the sample is detected;

[0015] The detection unit is used to detect the concentration information of the sample and transmit the concentration information of the sample to the control unit;

[0016] The control unit is used to trigger the driving component to drive the motor wheel to rotate and drive the sampling point of the paper tape to rotate to the air inlet of the sensor when it detects that the diffuse reflection switch outputs the level signal, and is used to process the concentration information of the sample.

[0017] On the other hand, the present application provides a fluorescence sensor detection device, comprising: a second bracket, and a plurality of the above-mentioned fluorescence sensor detection modules installed in the second bracket, the second bracket comprising a shell and a sliding plate installed in the shell, a second guide rail and a first pulley assembly for transmitting samples, the sliding plate and the second guide rail are slidably connected and can slide in a direction perpendicular to the movement of the sample, and the plurality of the fluorescence sensor detection modules are arranged on the sliding plate at intervals.

[0018] Optionally, the second bracket further comprises a plurality of adjustable feet connected to the housing for adjusting the height; and / or

[0019] The second bracket also includes a second pulley assembly connected to the sliding plate.

[0020] Optionally, it further includes a main control unit and a display unit for displaying sample information, each of the fluorescence sensor detection devices includes a control unit, each of the control units is conductively connected to the main control unit, and the main control unit and the display unit are conductively connected.

[0021] On the other hand, the present application provides a fluorescence sensor detection system to solve the problem of poor automation of existing fluorescence quenching technology; the fluorescence sensor detection system includes any of the fluorescence sensor detection devices described above, and conveyor belts arranged on both sides of the fluorescence sensor detection device.

[0022] Compared with the prior art, this application has the following beneficial effects:

[0023] The fluorescence sensor detection module described in the embodiment of the present application can rotatably adjust the position of the sensor air inlet by rotatably connecting the fluorescence sensor to the first bracket, thereby facilitating maintenance operations of the fluorescence sensor, especially replacement of components such as sensitive film devices at the sensor air inlet.

[0024] The fluorescent sensor detection system described in the embodiment of the present application connects the fluorescent sensor detection device to the conveyor belt, and multiple groups of fluorescent sensor detection modules can perform rapid automated sampling tests on the parcels on the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 One of the schematic diagrams of the structure of the fluorescence sensor detection module provided in the embodiment of the present application;

[0027] Figure 2 for Figure 1 Another structural schematic diagram of;

[0028] Figure 3 The second schematic diagram of the structure of the fluorescence sensor detection module provided in the embodiment of the present application;

[0029] Figure 4 for Figure 3 Another structural schematic diagram of;

[0030] Figure 5 This is one of the structural schematic diagrams of the fluorescence sensor detection device provided in the embodiment of the present application;

[0031] Figure 6 The second structural schematic diagram of the fluorescence sensor detection device provided in the embodiment of the present application;

[0032] Figure 7 The third structural schematic diagram of the fluorescence sensor detection device provided in the embodiment of the present application;

[0033] Figure 8 A schematic diagram of the structure of a fluorescence sensor detection system provided in an embodiment of the present application;

[0034] Fig. 9 The third schematic diagram of the structure of the fluorescence sensor detection module provided in the embodiment of the present application;

[0035] Fig.10 The fourth structural schematic diagram of the fluorescence sensor detection device provided in the embodiment of the present application;

[0036] Among them, the reference numerals in the figures are:

[0037] 100-fluorescence sensor detection module; 1-first bracket; 11-first slide; 200-fluorescence sensor detection device; 20-sensor body; 21-sensor air inlet; 22-sensor base; 23-fixed part; 24-rotating part; 25-connecting part; 26-diffuse reflection switch; 27-control unit; 28-detection unit; 29-wiping wheel; 291-sampling point; 3-paper tape; 4-drive position adjustment component; 41-screw; 42-first guide rail; 43-elastic member; 5-drive component; 51-motor wheel; 52-stepping motor; 6-second bracket; 61-housing; 62-sliding plate; 63-second guide rail; 64-first pulley assembly; 65-adjustable support foot; 66-second pulley assembly; 7-main control unit; 8-display unit; 9-first conveyor belt; 10-second conveyor belt. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0039] Please also read Figure 1 to Figure 4 On the one hand, the embodiment of the present application provides a fluorescence sensor detection module 100, including:

[0040] The first bracket 1;

[0041] A paper tape 3 arranged on the first bracket 1, the paper tape 3 is used for collecting samples;

[0042] A fluorescence sensor rotatably connected to the first bracket 1, the fluorescence sensor having a working mode and a maintenance mode and including a sensor air inlet 21, wherein in the working mode, the sensor air inlet 21 of the fluorescence sensor contacts the paper tape 3, so that the sample collected by the paper tape 3 enters the fluorescence sensor for detection, wherein when the fluorescence sensor is rotated relative to the first bracket 1 so that the sensor air inlet 21 of the fluorescence sensor is away from the paper tape, the fluorescence sensor switches to a maintenance mode, so as to facilitate the replacement and maintenance of components such as sensitive thin film devices at the sensor air inlet 21 of the fluorescence sensor.

[0043] The samples detected by the fluorescent sensor may be explosives or drugs, etc.

[0044] It can be understood that when the fluorescent sensor is working, the sensor air inlet 21 can be aligned with the paper tape 3; when the fluorescent sensor needs to be repaired, the fluorescent sensor can be rotated and its sensor air inlet 21 can be rotated to a position away from the paper tape 3, so as to facilitate the replacement of the sensitive film device at the sensor air inlet 21.

[0045] In the embodiment of the present application, the fluorescence sensor is rotatably connected to the first bracket 1 so that the position of the sensor air inlet 21 can be rotatably adjusted, thereby facilitating maintenance operations of the fluorescence sensor, especially replacement of components such as sensitive film devices at the sensor air inlet 21 .

[0046] See also Figure 2 and Figure 4 As an example, the specific structure of the fluorescence sensor is as follows:

[0047] The fluorescence sensor may include a sensor base 22 and a sensor body 20, a fixed portion 23, a rotating portion 24 and a connecting portion 25 respectively mounted on the sensor base 22. The sensor body 20 may include the sensor air inlet 21. The fixed portion 23 and the rotating portion 24 respectively penetrate the first bracket 1 and are connected through the connecting portion 25. The first bracket 1 is provided with a first slide groove 11 which is slidably connected to the rotating portion 24. When the rotating portion 24 slides along the first slide groove 11 with the fixed portion 23 as the rotation center, the sensor air inlet 21 approaches or moves away from the paper tape 3. As a specific embodiment, the rotating portion 24 and the fixed portion 23 may be configured as a rotating shaft, and the connecting portion 25 may be configured as a spring. See Figure 2 When the rotating part 24 rotates to the bottom of the first slide slot 11, the sensor air inlet 21 is aligned with the paper tape 3, and this is the working mode of the fluorescence sensor; see Figure 4 When the rotating part 24 rotates to the top of the first slide slot 11, the sensor air inlet 21 is away from the paper tape 3. At this time, it is the maintenance mode of the fluorescent sensor, which is convenient for replacing the sensitive film device.

[0048] The fluorescence sensor detection module 100 includes a wiping wheel 29 and a driving assembly 5 , the paper tape 3 is wound around the outside of the wiping wheel 29 and the driving assembly 5 , and the sampling point 291 is located at the top of the wiping wheel 29 .

[0049] See also Figure 2 In order to adjust the tightness of the paper tape 3, the first bracket 1 may also be equipped with a driving position adjustment component 4 and a driving component 5 for driving the paper tape 3 to rotate, and the driving position adjustment component 4 is slidably connected to the driving component 5. The paper tape 3 is wound outside the driving component 5, and the paper tape 3 may be wound too tight or too loose due to an inappropriate length of the paper tape 3. At this time, the position of the driving component 5 can be adjusted by the driving position adjustment component 4, and the driving component 5 can slide to adjust its own position, thereby adjusting the tightness of the paper tape 3.

[0050] As an example, the driving assembly 5 may include a motor wheel 51 and a stepper motor 52 mounted on the first bracket 1 and connected to the motor wheel 51, and the outer side of the motor wheel 51 is used to wind the paper tape 3;

[0051] The driving position adjustment assembly 4 may include a screw 41 and a first guide rail 42 mounted on the first bracket 1 and slidably connected to the motor wheel 51. The screw 41 is threadedly connected to the motor wheel 51 and is used to drive the motor wheel 51 to slide along the first guide rail 42. By rotating the screw 41, the position of the motor wheel 51 is adjusted, thereby adjusting the tightness of the paper tape 3 and bridging the length error of the paper tape 3.

[0052] Preferably, the drive position adjustment component 4 may also be provided with an elastic member 43, one end of the elastic member 43 is fixed on the first bracket 1, and the other end is connected to the motor wheel 51, which is used to provide a buffering effect when the motor wheel 51 is adjusted to prevent damage to the equipment.

[0053] See also Fig. 9 In the embodiment of the present application, the fluorescence sensor detection module 100 may further include a diffuse reflection switch 26, a control unit 27 and a detection unit 28 in terms of circuit structure, wherein the control unit 27 is conductively connected to the diffuse reflection switch 26 and the detection unit 28; the diffuse reflection switch 26 is used to detect the position information of the sample, and outputs a level signal when the position information of the sample is detected; the detection unit 28 is used to detect the concentration information of the sample and transmit the concentration information of the sample to the control unit 27; the control unit 27 is used to trigger the drive component 5 to drive the motor wheel 51 to rotate and drive the sampling point 291 of the paper tape 3 to rotate to the sensor air inlet 21 when the diffuse reflection switch 26 of the sample outputs the level signal, and is used to process the concentration information of the sample.

[0054] The diffuse reflection switch 26 emits a light beam. When a sample enters the effective scanning area of ​​the diffuse reflection switch 26, the sample generates diffuse reflection. The diffuse reflection switch 26 detects the position information of the sample. The signal output pin of the diffuse reflection switch 26 outputs a low level. After the control unit 27 detects that the signal of the diffuse reflection switch 26 is pulled low, it is considered that a sample has passed; the control unit 27 triggers the driving component 5 to drive the motor wheel 51 to rotate and drive the sampling point 291 of the paper tape 3 to rotate to the sensor air inlet 21; since the distance L from the sampling point 291 to the sensor air inlet 21 is known and the radius R of the motor wheel 51 is known, the corresponding center angle θ=L / R can be calculated, so it is only necessary to control the motor wheel 51 to rotate the corresponding angle to control the sampling point 291 of the paper tape 3 to rotate to the sensor air inlet 21; the detection unit 28 detects the concentration information of the sample and transmits the concentration information of the sample to the control unit 27, and the control unit 27 processes the concentration information collected by the detection unit 28.

[0055] See also Figure 5 to Figure 7 On the other hand, the embodiment of the present application provides a fluorescence sensor detection device 200, which may include a second bracket 6, and a plurality of the fluorescence sensor detection modules 100 installed in the second bracket 6, wherein the second bracket 6 includes a housing 61 and a sliding plate 62 installed in the housing 61, a second guide rail 63, and a first pulley assembly 64 for transmitting samples, wherein the sliding plate 62 and the second guide rail 63 are slidably connected and can slide in a direction perpendicular to the movement of the sample, and the plurality of the fluorescence sensor detection modules 100 are arranged on the sliding plate 62 at intervals. The housing 61 is used to support and install the fluorescence sensor detection module 100.

[0056] Among them, the number of fluorescent sensor detection modules 100 can be freely set, and the spacing distances therebetween can also be freely set according to needs; the number of settings and installation intervals of the fluorescent sensor detection modules 100 can be freely adjusted according to the different specifications of the assembled conveyor belt.

[0057] Among them, the first pulley assembly 64 can be set as a support rod with a pulley, both ends of the support rod are respectively connected to the shell 61, the pulley sleeve is arranged on the outside of the support rod, the support rod can be set to multiple, and each support rod can be provided with multiple pulleys; the first pulley assembly 64 can be driven to rotate by a driving mechanism, and when the sample passes through the first pulley assembly 64, it drives the sample to move.

[0058] See also Figure 5 In the embodiment of the present application, through the sliding arrangement of the second guide rail 63 and the sliding plate 62 , multiple fluorescence sensor detection modules 100 can be slid out of the housing 61 together with the sliding plate 62 , which is convenient for the maintenance and replacement of the fluorescence sensor detection modules 100 .

[0059] The second bracket 6 may further include a plurality of adjustable feet 65 connected to the housing 61 for adjusting the height. When used in combination with a conveyor belt, the height of the second bracket 6 can be adjusted to be uniform with the height of the conveyor belt through the adjustable feet 65.

[0060] The second bracket 6 may further include a second pulley assembly 66 connected to the sliding plate 62. Specifically, the second pulley assembly 66 may include a support rod and a roller, one end of the support rod is connected to the sliding plate 62, and the other end is connected to the roller, when the sliding plate 62 is slid out of the housing 61, the sliding plate 62 and the fluorescence sensor detection module 100 can be supported by the support rod, and the fluorescence sensor detection module 100 can be conveniently dragged out by setting the roller.

[0061] The second bracket 6 may further include a baffle, which is disposed on the sliding plate 62 and located on the outside of the outermost fluorescence sensor detection module 100. When the sliding plate 62 slides into the shell 61, the baffle can be used to cover the gap of the shell 61, thereby protecting the fluorescence sensor detection module 100 and achieving an aesthetic effect.

[0062] The fluorescence sensor detection device 200 described in the embodiment of the present application may further include, in terms of circuit structure, a main control unit 7 and a display unit 8 for displaying sample concentration information, and the display unit 8 may also display alarm information; each of the fluorescence sensor detection modules 100 includes a control unit 27 and a detection unit 28, and the detection unit 28 is connected to the control unit 27, and each of the control units 27 is electrically connected to the main control unit 7, and the main control unit 7 is electrically connected to the display unit 8. Each of the fluorescence sensor detection modules 100 operates independently, and the data detected by each of them can be gathered on the main control unit 7 in a star topology and can be displayed on the same display screen. Fig.10 , taking three fluorescence sensor detection modules 100 as an example, a structural schematic diagram of a fluorescence sensor detection device 200 is shown.

[0063] The concentration information of the sample detected by the detection unit 28 in the fluorescence sensor detection module 100 is transmitted to the control unit 27. The control unit 27 converts the concentration information, i.e., the fluorescence signal, into a digital signal, and operates the digital signal through an algorithm, and sends the operation result (suspicious or safe) to the main control unit 7 through the I2C bus. The main control unit 7 summarizes the test results of each channel and displays them on the display screen.

[0064] See also Figure 8 On the other hand, an embodiment of the present application provides a fluorescence sensor detection system, including the above-mentioned fluorescence sensor detection device 200, and conveyor belts arranged on both sides of the fluorescence sensor detection device 200.

[0065] In view of the fact that the current instruments for detecting explosives / drugs using fluorescence quenching technology are all handheld or desktop, with low detection efficiency and poor automation, this system connects the fluorescence sensor detection device 200 to the conveyor belt, and multiple groups of fluorescence sensor detection modules 100 can quickly and automatically sample and test the parcels on the conveyor belt, and can automatically complete the wiping sampling and display of the test results, and even alarm prompts. In addition, this system can be used in express delivery, logistics companies and airport cargo transfer centers. The fluorescence sensor detection device 200 can be installed at the middle connection of two sections of the conveyor belt, which can minimize the difficulty of modification.

[0066] The detection process is as follows: the two sides of the fluorescent sensor detection device 200 are the first conveyor belt 9 and the second conveyor belt 10 respectively; the first conveyor belt 9 is the upper conveyor belt, and the second conveyor belt 10 is the lower conveyor belt; the package (or goods) transmitted from the upper conveyor belt passes through one or more fluorescent sensor detection modules 100, triggering the diffuse reflection switch 26 of the fluorescent sensor detection module 100, and the sampling point 291 of the paper tape 3 rolls to the sensor air inlet 21 of the module for detection; if a suspected product is detected, the display screen displays an alarm message, and after the test is completed, the sampling point 291 can be rolled to the high-temperature desorption and cleaning device (not shown in the figure) for cleaning and desorption; if the detection is safe, you can wait for the next detection.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications made within the spirit and principles of the present application, such as equivalent replacements and improvements, should be included in the protection scope of the present application.

Claims

1. A fluorescence sensor detection module, characterized in that: include: First bracket; A paper tape arranged on the first support, the paper tape being used for collecting samples; a fluorescence sensor rotatably connected to the first bracket, the fluorescence sensor comprising a sensor air inlet and having a working mode and a maintenance mode, wherein in the working mode, the sensor air inlet of the fluorescence sensor contacts the paper tape so that a sample collected by the paper tape enters the fluorescence sensor for detection, wherein when the fluorescence sensor is rotated relative to the first bracket so that the sensor air inlet of the fluorescence sensor is away from the paper tape, the fluorescence sensor switches to the maintenance mode; The fluorescence sensor comprises a sensor base and a sensor body, a fixed part, a rotating part and a connecting part respectively mounted on the sensor base, the sensor body comprises the sensor air inlet, the fixed part is connected to the rotating part through the connecting part, the fixed part and the rotating part both pass through the first bracket, the first bracket is provided with a first slide groove slidably connected to the rotating part, wherein the rotating part slides along the first slide groove with the fixed part as the rotation center to switch the working mode and the maintenance mode of the fluorescence sensor; The first bracket is provided with a driving position adjustment component and a driving component for driving the paper tape to rotate, and the driving position adjustment component is slidably connected to the driving component; The driving assembly comprises a motor wheel and a stepper motor mounted on the first bracket and connected to the motor wheel, and the outer side of the motor wheel is used for winding the paper tape; The driving position adjustment assembly comprises a screw and a first guide rail mounted on the first bracket and slidably connected to the motor wheel, wherein the screw is threadedly connected to the motor wheel and is used to drive the motor wheel to slide along the first guide rail to compensate for the length error of the paper tape; The fluorescent sensor detection module also includes a wiping wheel and a driving component. The paper tape is wound around the outside of the wiping wheel and the driving component. The sampling point of the paper tape is located at the top of the wiping wheel.

2. The fluorescence sensor detection module according to claim 1, characterized in that: The drive position adjustment component also includes an elastic member, one end of which is fixed on the first bracket, and the other end of which is connected to the motor wheel.

3. The fluorescence sensor detection module according to claim 1, characterized in that: The fluorescence sensor detection module also includes a diffuse reflection switch, a control unit and a detection unit, and the control unit is conductively connected to the diffuse reflection switch and the detection unit; The diffuse reflection switch is used to detect the position information of the sample, and outputs a level signal when the position information of the sample is detected; The detection unit is used to detect the concentration information of the sample and transmit the concentration information of the sample to the control unit; The control unit is used to trigger the driving component to drive the motor wheel to rotate and drive the sampling point of the paper tape to rotate to the air inlet of the sensor when it detects that the diffuse reflection switch outputs the level signal, and is used to process the concentration information of the sample.

4. A fluorescence sensor detection device, characterized in that: It comprises a second bracket, and a plurality of fluorescence sensor detection modules as described in any one of claims 1 to 3 installed in the second bracket, the second bracket comprises a shell and a sliding plate installed in the shell, a second guide rail and a first pulley assembly for transmitting samples, the sliding plate and the second guide rail are slidably connected and can slide in a direction perpendicular to the movement of the sample, and the plurality of fluorescence sensor detection modules are arranged on the sliding plate at intervals.

5. The fluorescence sensor detection device according to claim 4, characterized in that: The second bracket further comprises a plurality of adjustable feet connected to the housing for adjusting the height; and / or The second bracket also includes a second pulley assembly connected to the sliding plate.

6. The fluorescence sensor detection device according to claim 4, characterized in that: It also includes a main control unit and a display unit for displaying sample information. Each of the fluorescence sensor detection devices includes a control unit. Each of the control units is conductively connected to the main control unit. The main control unit is conductively connected to the display unit.

7. A fluorescence sensor detection system, characterized in that: The invention comprises the fluorescent sensor detection device according to any one of claims 4 to 6, and conveyor belts arranged on both sides of the fluorescent sensor detection device.

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