Vehicle-mounted fluorescent radar device and method

Abstract

The invention relates to the technical field of fluorescent radars, in particular to a vehicle-mounted fluorescent radar device and method, a vehicle-mounted fluorescent radar emits light with a specific wavelength to excite fluorescent substances on the surface of a target object and enable the fluorescent substances to emit fluorescent light, and a receiver detects the fluorescent light to identify the type of the target object. A shading assembly is arranged at an opening in the front end of the vehicle-mounted fluorescent radar, and a polaroid is arranged on the shading assembly; the mounting assembly is arranged at a front end opening of the vehicle-mounted fluorescent radar, and the guide assemblies are arranged on the two sides of the mounting assembly; the two ends of the shading assembly are arranged on the guide assembly through the sliding supporting assembly, disordered background light in the strong light environment can be filtered through the shading assembly, and the shading assembly is opened in the weak light environment so that the light inlet amount can be increased.

Description

Technical Field

[0001] The present invention relates to the field of fluorescent radar technology, and in particular to a vehicle-mounted fluorescent radar device and method. Background Art

[0002] The vehicle-mounted fluorescent radar emits light of a specific wavelength, which excites the fluorescent material on the surface of the target object and causes it to fluoresce. The receiver in the system receives these fluorescent signals and analyzes the characteristics of the target object, such as distance, speed, direction, etc., based on information such as the intensity, wavelength, and time of the fluorescent signal. Compared with laser radar, the vehicle-mounted fluorescent radar has a stronger ability to identify materials. The fluorescent radar identifies and analyzes objects by detecting the fluorescent signals emitted by the target object after being excited. Different substances will produce fluorescence with characteristic wavelengths under specific excitation light. Therefore, the fluorescent radar can more accurately identify and distinguish different types of material components. The laser radar mainly obtains information such as the distance, speed, and angle of the target by measuring the flight time or frequency change of the laser pulse, and is relatively weak in material identification. In addition to being able to detect the existence and location information of the target object, the fluorescent radar can also obtain other relevant information of the target object by analyzing the fluorescence spectrum, such as the concentration, temperature, pressure and other physical and chemical parameters of the substance, thereby realizing multi-dimensional measurement and analysis of the target object. However, as a relatively new technology, the research and development and application of vehicle-mounted fluorescent radar are still in the development stage. The technical maturity is not as good as traditional vehicle-mounted radar technologies, such as laser radar, millimeter wave radar and ultrasonic radar, and there may be certain problems in terms of system stability and reliability. In addition, the detection effect of vehicle-mounted fluorescent radar may be affected under strong light or low light conditions. For example, the fluorescent signal may be masked or weakened under strong sunlight. The background light signals such as various scattered light and reflected light in strong light environments are relatively strong. These background lights and fluorescent signals may have overlapping or similar parts in the spectrum, making it difficult for the fluorescent radar to effectively distinguish and extract the real fluorescent signal when receiving the signal, thereby affecting the accurate detection of near-field targets; and the intensity of the fluorescent signal may not be sufficient to be effectively detected at night or in dim environments. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a vehicle-mounted fluorescent radar device and method, which can filter out messy background light in a strong light environment through a shading component, and open the shading component in a weak light environment to increase the amount of light entering.

[0004] To achieve the above object, the present invention provides the following technical solutions: A vehicle-mounted fluorescent radar device, the vehicle-mounted fluorescent radar is fixedly installed on a vehicle body through an installation component, the vehicle-mounted fluorescent radar emits light of a specific wavelength to excite fluorescent substances on the surface of a target object and make it emit fluorescence, a receiver detects the fluorescence to identify the type of the target object, a shading component is arranged at the front end opening of the vehicle-mounted fluorescent radar, and a polarizing plate is arranged on the shading component; the installation component is arranged at the front end opening of the vehicle-mounted fluorescent radar, and guide components are arranged on both sides of the installation component; both ends of the shading component are arranged on the guide component through a sliding support component, and a driving part is also arranged on the guide component; the driving part is connected to the sliding support component through a transmission mechanism, and drives the shading component to close / open the front end opening of the vehicle-mounted fluorescent radar; when the shading component is closed, the polarizing plate filters diffusely reflected light in a strong light environment, thereby reducing the noise of the fluorescent signal received by the receiver; the guide component is also provided with a shell that blocks the outside of the driving part and the transmission mechanism.

[0005] Furthermore, an upper guide rail is provided on the upper part of the guide plate of the guide assembly, and a lower guide rail is provided on the lower part of the guide plate; sliding support assemblies are respectively provided on the upper and lower ends of both sides of the support frame of the shading assembly; the sliding support assembly at the upper end of the support frame cooperates with the upper guide rail, and the sliding support assembly at the lower end of the support frame cooperates with the lower guide rail.

[0006] Furthermore, the upper guide rail and the lower guide rail have the same structure, both including a second guide section and a first guide section; the extension directions of the first guide section and the second guide section have a certain angle; when the shading component is opened, it first moves along the second guide section and detaches from the end face of the mounting positioning frame of the mounting component; and then slides along the first guide section to the bottom of the mounting positioning frame.

[0007] Furthermore, support seats for installing the sliding support assembly are arranged on both sides of the support frame of the shading assembly; the support seats include an upper support seat arranged on the upper part of the support frame, and a lower support seat arranged on the lower part of the support frame; the length of the lower support seat is greater than the length of the upper support seat; the outer ends of the lower support seat and the upper support seat are respectively provided with sliding support assemblies; the sliding support assembly on the lower support seat is slidably matched with the lower guide rail, and the sliding support assembly on the upper support seat is slidably matched with the upper guide rail; a polarizer is installed in the middle of the support frame.

[0008] Furthermore, fixing parts are provided on the upper and lower sides of the mounting and positioning frame, the mounting and positioning frame is fixedly connected to the vehicle-mounted fluorescent radar, and the fixing parts are fixedly connected to the body of the vehicle.

[0009] Furthermore, the transmission mechanism includes a rack, an upper mounting seat is provided at the bottom of the upper end of the rack, and a lower mounting seat is provided at the bottom of the lower end of the rack; the outer end of the upper mounting seat is hinged to the sliding support assembly on the upper support seat; the outer end of the lower mounting seat is hinged to the sliding support assembly on the lower support seat; the length of the upper mounting seat is greater than the length of the lower mounting seat.

[0010] Furthermore, the sliding support assembly includes a wheel seat and rollers arranged on both sides of the wheel seat; the upper end of the wheel seat is rotatably connected to the upper and lower mounting seats of the rack through a rack shaft, and the upper end of the wheel seat is rotatably connected to the upper and lower supporting seats of the support frame through a support shaft; the middle parts of the upper guide rail and the lower guide rail of the guide plate are both provided with through grooves; the support shaft passes through the through groove, and a rotating sleeve is provided on the support shaft, and the rotating sleeve is matched with the through groove; the rollers on both sides of the wheel seat are supported on the sliding end surfaces of the upper guide rail and the lower guide rail.

[0011] Furthermore, the driving part includes a motor and a gear arranged at the output end of the motor; the gear is arranged on the guide plate through a driving support, and the gear is meshed with the rack of the transmission mechanism; the motor drives the gear to rotate, and the gear drives the rack to slide along the first direction in the first guide section; when the sliding support assembly on the rack enters the second guide section, the gear and the second guide section jointly drive the rack to slide in the first direction while generating a displacement in the second direction; the size of the displacement in the second direction is smaller than the width of the gear, so that the rack is always meshed with the rack when moving in the second direction; the guide plate is fixed to both sides of the mounting positioning frame by supporting feet.

[0012] Furthermore, the shell is located on the outside of the rack, and the shell includes an upper shell, a lower shell and a protective cover; the upper shell is located above the upper guide rail and fixed to the guide plate, and the lower shell is located above the lower guide rail and fixed to the guide plate; the protective cover is located above the gear and fixed to the upper shell.

[0013] The shading method of the vehicle-mounted fluorescent radar of the present invention adopts the above-mentioned vehicle-mounted fluorescent radar device, in a strong light environment, the gear of the driving unit drives the rack from the first guide section to the second guide section; drives the polarizer on the shading component to move along the first direction to the front end of the vehicle-mounted fluorescent radar, and then adheres to the mounting and positioning frame at the front end of the vehicle-mounted fluorescent radar along the second direction; in a weak light environment, the gear of the driving unit drives the rack from the second guide section to the first guide section; drives the polarizer on the shading component to separate from the end face of the mounting and positioning frame along the second direction, and then moves along the first direction to the bottom of the vehicle-mounted fluorescent radar.

[0014] Compared with the prior art, the present invention provides a vehicle-mounted fluorescent radar device and method, which have the following beneficial effects: the vehicle-mounted fluorescent radar of the present invention can identify the type of target objects and can adapt to strong light environments and weak light environments. The shading component at the front of the vehicle-mounted fluorescent radar can use a polarizing plate to filter the messy light in the strong light environment, thereby ensuring the detection sensitivity of the fluorescent light in the strong light environment. At the same time, the shading component is opened in the weak light environment to increase the low beam amount of the vehicle-mounted fluorescent radar receiver; the guide component is provided with upper and lower guide rails with staggered positions, thereby reducing the total length of the shading component. The occupied space is reduced by utilizing the multiple guide sections on the upper and lower guide rails, and then the polarizer of the shading component is translated to the front end of the vehicle-mounted fluorescent radar and then moved close to the vehicle-mounted fluorescent radar, which can reduce the gap between the shading component and the vehicle-mounted fluorescent radar when it is closed. At the same time, when the shading component is opened, the shading component first moves away from the end face of the mounting and positioning frame of the vehicle-mounted fluorescent radar and then translates and slides, which can avoid the wear of the polarizer by the mounting and positioning frame to ensure the optical performance of the polarizer. The vehicle-mounted fluorescent radar of the present invention has strong environmental adaptability, small occupied space, wear resistance and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the vehicle-mounted fluorescent radar device of the present invention; Figure 2 A schematic diagram of the polarization component of the present invention filtering diffusely reflected light in a strong light environment; Figure 3 It is a schematic diagram of the structure of the shading component of the present invention after it is opened; Figure 4 It is a structural schematic diagram of the guide assembly and the driving part of the present invention; Figure 5 It is a schematic structural diagram of the upper guide rail when the shading assembly of the present invention is closed; Figure 6 A schematic diagram of the shading assembly of the present invention when it is opened; Figure 7 A schematic diagram of the movement direction of the shading assembly of the present invention; Figure 8 It is a structural schematic diagram of the sliding support assembly and the transmission mechanism of the present invention; Fig. 9 It is an exploded schematic diagram of the sliding support assembly and the transmission assembly of the present invention; Fig.10 A cross-sectional view of a sliding support assembly of the present invention; In the figure: Vehicle-mounted fluorescent radar 1; Installation assembly 2, installation positioning frame 21, fixing part 22; Shell 3, upper shell 31, lower shell 32, protective cover 33; Driving unit 4, motor 41, gear 42; Guide assembly 5, guide plate 51, upper guide rail 52, second guide section 521, first guide section 522, through slot 523, lower guide rail 53, drive support 54, support foot 55, sliding end surface 500; Shading component 6, support frame 61, lower support seat 62, upper support seat 63, polarizing plate 60; Transmission mechanism 7, rack 71, upper mounting seat 72, lower mounting seat 73; Sliding support assembly 8, wheel seat 81, roller 82, rack shaft 83, support shaft 84, rotating sleeve 85; DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The following is based on the attached Figure 1-10 The present invention is described in detail. The vehicle-mounted fluorescent radar device and method of the present invention, the vehicle-mounted fluorescent radar 1 is fixedly installed on the vehicle body through the mounting component 2, the vehicle-mounted fluorescent radar 1 emits light of a specific wavelength, excites the fluorescent material on the surface of the target object and makes it emit fluorescence, the receiver detects the fluorescence to identify the type of the target object, the front end opening of the vehicle-mounted fluorescent radar 1 is provided with a shading component 6, and the shading component 6 is provided with a polarizer 60; the mounting component 2 is provided at the front end opening of the vehicle-mounted fluorescent radar 1, and the two sides of the mounting component 2 are provided with a guide component 5; the two ends of the shading component 6 are provided on the guide component 5 through a sliding support component 8, and the guide component 5 is also provided with a driving unit 4; the driving unit 4 is connected to the sliding support component 8 through a transmission mechanism 7, and drives the shading component 6 to close / open the front end opening of the vehicle-mounted fluorescent radar 1; when the shading component 6 is closed, the polarizer 60 filters the diffusely reflected light in a strong light environment, thereby reducing the noise of the fluorescent signal received by the receiver; the guide component 5 is also provided with a shell 3 that blocks the outside of the driving unit 4 and the transmission mechanism 7.

[0018] In the embodiment of the present invention, the detection effect of the vehicle-mounted fluorescent radar 1 may be affected under strong light or low light conditions. The fluorescent signal may be masked or weakened under strong sunlight. Strong light will generate a large amount of diffuse reflection light to mask the fluorescent signal. The diffuse reflection signal can be effectively filtered by the polarizer 60 to improve the detection sensitivity of the vehicle-mounted fluorescent radar 1. Figure 2As shown, the intensity of the fluorescent signal may not be sufficient to be effectively detected at night or in dim environments.

[0019] An upper guide rail 52 is provided on the upper part of the guide plate 51 of the guide assembly 5, and a lower guide rail 53 is provided on the lower part of the guide plate 51; sliding support assemblies 8 are respectively provided on the upper and lower ends of both sides of the support frame 61 of the shading assembly 6; the sliding support assembly 8 at the upper end of the support frame 61 cooperates with the upper guide rail 52, and the sliding support assembly 8 at the lower end of the support frame 61 cooperates with the lower guide rail 53.

[0020] Specifically, Figure 4 As shown, the lower guide rail 53 is located at the lower side of the upper guide rail 52, and the uppermost end of the lower guide rail 53 is higher than the lowermost end of the upper guide rail 52, that is, the lower guide rail 53 and the upper guide rail 52 are staggered, so that the total occupied length of the upper guide rail 52 and the upper guide rail 52 is reduced. At the same time, the staggered setting makes it unnecessary for the sliding support assembly 8 at the lower end of the support frame 61 to be protruding on the outside of the support frame 61, so that the overall structure is more compact, and the space in the vehicle body that needs to be occupied during the sliding process of the shading assembly 6 is reduced.

[0021] The upper guide rail 52 and the lower guide rail 53 have the same structure, both including a second guide section 521 and a first guide section 522; the first guide section 522 and the extension direction of the second guide section 521 have a certain angle; when the shading component 6 is opened, it first moves along the second guide section 521 and detaches from the end surface of the mounting positioning frame 21 of the mounting component 2; and then slides along the first guide section 522 to the bottom of the mounting positioning frame 21.

[0022] like Figure 7 As shown, the second guide section 521 causes the shading component 6 to be offset in the second direction, wherein the second direction is a direction perpendicular to the end face of the mounting and positioning frame 21. The shading component 6 first separates from the end face of the mounting and positioning frame 21 in the second direction, thereby avoiding the friction of the mounting and positioning frame 21 on the polarizing film 60 on the shading component 6 during the sliding process, thereby avoiding damage to the optical performance of the polarizing film 60. The first guide section 522 causes the shading component 6 to slide in the first direction to the bottom of the mounting and positioning frame 21, wherein the first direction is a direction parallel to the end face of the mounting and positioning frame 21.

[0023] In this embodiment, when closing the shading component 6, the shading component 6 first slides along the first direction and blocks the end face opening of the mounting positioning frame 21, and then slides along the second guide section 521 and generates an offset in the second direction, so that the shading component 6 can fit on the end face of the mounting positioning frame 21, thereby reducing the gap between the mounting positioning frame 21 and the polarizer 60 of the shading component 6, and improving the shading and light filtering performance of the polarizer 60.

[0024] Support seats for installing the sliding support assembly 8 are arranged on both sides of the support frame 61 of the shading assembly 6; the support seats include an upper support seat 63 arranged at the upper part of the support frame 61, and a lower support seat 62 arranged at the lower part of the support frame 61; the length of the lower support seat 62 is greater than the length of the upper support seat 63; the outer ends of the lower support seat 62 and the upper support seat 63 are respectively provided with sliding support assemblies 8; the sliding support assembly 8 on the lower support seat 62 is slidably matched with the lower guide rail 53, and the sliding support assembly 8 on the upper support seat 63 is slidably matched with the upper guide rail 52; a polarizer 60 is installed in the middle of the support frame 61.

[0025] like Figure 4-6 As described above, the lengths of the lower support seat 62 and the upper support seat 63 are different, so that when the upper guide rail 52 and the lower guide rail 53 are offset and guide the support frame 61 of the shading component 6, the support frame 61 can always be parallel to the end surface of the installation positioning frame 21. Specifically, the distance between the lower guide rail 53 and the end surface of the installation positioning frame 21 is greater than the distance between the upper guide rail 52 and the end surface of the installation positioning frame 21, and as Figure 7 As shown, the lower guide rail 53 is on the left side of the upper guide rail 52 in the second direction.

[0026] The upper and lower sides of the mounting and positioning frame 21 are further provided with fixing parts 22 . The mounting and positioning frame 21 is fixedly connected to the vehicle-mounted fluorescent radar 1 , and the fixing parts 22 are fixedly connected to the body of the vehicle.

[0027] The transmission mechanism 7 includes a rack 71, an upper mounting seat 72 is provided at the bottom of the upper end of the rack 71, and a lower mounting seat 73 is provided at the bottom of the lower end of the rack 71; the outer end of the upper mounting seat 72 is hinged to the sliding support assembly 8 on the upper support seat 63; the outer end of the lower mounting seat 73 is hinged to the sliding support assembly 8 on the lower support seat 62; the length of the upper mounting seat 72 is greater than the length of the lower mounting seat 73.

[0028] Specifically, one end of the upper mounting seat 72 is fixedly connected to the rack 71, and the other end is the outer end of the upper mounting seat 72, which deviates from the extension direction of the rack 71; one end of the lower mounting seat 73 is fixedly connected to the rack 71, and the other end is the outer end of the lower mounting seat 73, which deviates from the extension direction of the rack 71; the distance that the installation position of the sliding support assembly 8 on the upper mounting seat 72 deviates from the extension direction of the rack 71 is greater than the distance that the installation position of the sliding support assembly 8 on the lower mounting seat 73 deviates from the extension direction of the rack 71.

[0029] In another embodiment, the lower mounting seat 73 is not protruding from the rack 71, so that the sliding support assembly 8 is installed directly below the rack 71 through the lower mounting seat 73, and the installation position of the sliding support assembly 8 on the upper mounting seat 72 deviates from the extension direction of the rack 71 by a certain distance, and the installation position of the sliding support assembly 8 on the lower mounting seat 73 is located in the extension direction of the rack 71. Through the arrangement of the above embodiment, the extension direction of the rack 71 is parallel to the support frame 61, and the extension direction of the rack 71 coincides with the first direction.

[0030] The sliding support assembly 8 includes a wheel seat 81 and rollers 82 arranged on both sides of the wheel seat 81; the upper end of the wheel seat 81 is rotatably connected to the upper and lower mounting seats of the rack 71 through a rack shaft 83, and the upper end of the wheel seat 81 is rotatably connected to the upper and lower supporting seats of the support frame 61 through a support shaft 84; the middle parts of the upper guide rail 52 and the lower guide rail 53 of the guide plate 51 are both provided with through grooves 523; the support shaft 84 passes through the through groove 523, and a rotating shaft sleeve 85 is provided on the support shaft 84, and the rotating shaft sleeve 85 is matched with the through groove 523; the rollers 82 on both sides of the wheel seat 81 are supported on the sliding end surfaces 500 of the upper guide rail 52 and the lower guide rail 53.

[0031] Specifically, the upper guide rail 52 and the lower guide rail 53 are guide rails formed by a groove structure on the guide plate 51, wherein the ground of the groove structure is a flat sliding end surface 500, and a through groove 523 is connected to the upper and lower spaces of the guide plate 51 in the middle of the groove structure, wherein the through groove 523 is consistent with the extension direction of the second guide section 521 and the first guide section 522 of the guide rail, that is, the through groove 523 also has the first and second guide sections, and the first and second guide sections of the through groove 523 limit the support shaft 84 and the rotation The shaft sleeve 85 enables the wheel seat 81 of the sliding support assembly 8 to move along the through groove 523 and have a displacement in the first direction and the second direction; in the process of the wheel seat 81 entering the first guide section 522 from the second guide section 521, the side walls of the groove structure of the upper guide rail 52 and the lower guide rail 53 squeeze the roller 82 and rotate the wheel seat 81, so that the rolling direction of the roller 82 is consistent with the second guide section 521 / first guide section 522 / transition section between the second guide section 521 and the first guide section 522.

[0032] The driving part 4 includes a motor 41 and a gear 42 arranged at the output end of the motor 41; the gear 42 is arranged on the guide plate 51 through a driving support 54, and the gear 42 is meshed with the rack 71 of the transmission mechanism 7; the motor 41 drives the gear 42 to rotate, and the gear 42 drives the rack 71 to slide along the first direction in the first guide section 522; when the sliding support assembly 8 on the rack 71 enters the second guide section 521, the gear 42 and the second guide section 521 jointly drive the rack 71 to slide in the first direction while generating a displacement in the second direction; the size of the displacement in the second direction is smaller than the width of the gear 42, so that the rack 71 is always meshed with the rack 71 when moving in the second direction; the guide plate 51 is fixed to both sides of the mounting and positioning frame 21 by the support feet 55.

[0033] The shell 3 is located on the outside of the rack 71, and the shell 3 includes an upper shell 31, a lower shell 32 and a protective cover 33; the upper shell 31 is located above the upper guide rail 52 and fixed to the guide plate 51, and the lower shell 32 is located above the lower guide rail 53 and fixed to the guide plate 51; the protective cover 33 is located above the gear 42 and fixed to the upper shell 31.

[0034] The shading method of the vehicle-mounted fluorescent radar of the present invention is as follows: in a strong light environment, the gear 42 of the driving unit 4 drives the rack 71 from the first guide section 522 to the second guide section 521; drives the polarizer 60 on the shading component 6 to move along the first direction to the front end of the vehicle-mounted fluorescent radar 1, and then adheres to the mounting and positioning frame 21 at the front end of the vehicle-mounted fluorescent radar 1 along the second direction; in a weak light environment, the gear 42 of the driving unit 4 drives the rack 71 from the second guide section 521 to the first guide section 522; drives the polarizer 60 on the shading component 6 to separate from the end surface of the mounting and positioning frame 21 along the second direction, and then moves along the first direction to the bottom of the vehicle-mounted fluorescent radar 1.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted fluorescent radar device, wherein the vehicle-mounted fluorescent radar (1) is fixedly mounted on a vehicle body through a mounting assembly (2), the vehicle-mounted fluorescent radar (1) emits light of a specific wavelength to excite fluorescent substances on the surface of a target object and cause it to emit fluorescence, and a receiver detects the fluorescence to identify the type of the target object, characterized in that: A light shielding component (6) is provided at the front end opening of the vehicle-mounted fluorescent radar (1), and a polarizing plate (60) is provided on the light shielding component (6); The mounting component (2) is arranged at the front end opening of the vehicle-mounted fluorescent radar (1), and guide components (5) are arranged on both sides of the mounting component (2); Both ends of the shading component (6) are arranged on the guide component (5) via a sliding support component (8); a driving unit (4) is also arranged on the guide component (5); The driving unit (4) is connected to the sliding support assembly (8) via a transmission mechanism (7), and drives the shading assembly (6) to close / open the front end opening of the vehicle-mounted fluorescent radar (1); When the light shielding component (6) is closed, the polarizing plate (60) filters diffusely reflected light in a strong light environment, thereby reducing noise of the fluorescent signal received by the receiver; The guide assembly (5) is also provided with a housing (3) that shields the outside of the drive unit (4) and the transmission mechanism (7).

2. The vehicle-mounted fluorescent radar device according to claim 1, characterized in that: An upper guide rail (52) is provided on the upper portion of the guide plate (51) of the guide assembly (5), and a lower guide rail (53) is provided on the lower portion of the guide plate (51); Sliding support assemblies (8) are respectively provided at the upper and lower ends of both sides of the support frame (61) of the shading assembly (6); The sliding support assembly (8) at the upper end of the support frame (61) cooperates with the upper guide rail (52), and the sliding support assembly (8) at the lower end of the support frame (61) cooperates with the lower guide rail (53).

3. The vehicle-mounted fluorescent radar device according to claim 2, characterized in that: The upper guide rail (52) and the lower guide rail (53) have the same structure, and both comprise a second guide section (521) and a first guide section (522); The extension directions of the first guide section (522) and the second guide section (521) have a certain angle; When the light shielding component (6) is opened, it first moves along the second guide section (521) and detaches from the end surface of the mounting positioning frame (21) of the mounting component (2); Then, it slides along the first guide section (522) to the bottom of the installation positioning frame (21).

4. The vehicle-mounted fluorescent radar device according to claim 3, characterized in that: Support seats for mounting the sliding support assembly (8) are provided on both sides of the support frame (61) of the shading assembly (6); The support seat comprises an upper support seat (63) arranged at the upper part of the support frame (61), and a lower support seat (62) arranged at the lower part of the support frame (61); The length of the lower support seat (62) is greater than the length of the upper support seat (63); The outer ends of the lower support seat (62) and the upper support seat (63) are respectively provided with sliding support assemblies (8); The sliding support assembly (8) on the lower support seat (62) is in sliding cooperation with the lower guide rail (53), and the sliding support assembly (8) on the upper support seat (63) is in sliding cooperation with the upper guide rail (52); A polarizing plate (60) is installed in the middle of the support frame (61).

5. The vehicle-mounted fluorescent radar device according to claim 4, characterized in that: The upper and lower sides of the mounting and positioning frame (21) are also provided with fixing parts (22); the mounting and positioning frame (21) is fixedly connected to the vehicle-mounted fluorescent radar (1); and the fixing part (22) is fixedly connected to the body of the vehicle.

6. The vehicle-mounted fluorescent radar device according to claim 5, characterized in that: The transmission mechanism (7) comprises a rack (71), an upper mounting seat (72) is provided at the bottom of the upper end of the rack (71), and a lower mounting seat (73) is provided at the bottom of the lower end of the rack (71); The outer end of the upper mounting seat (72) is hinged to the sliding support assembly (8) on the upper support seat (63); The outer end of the lower mounting seat (73) is hingedly connected to the sliding support assembly (8) on the lower support seat (62); The length of the upper mounting seat (72) is greater than the length of the lower mounting seat (73).

7. The vehicle-mounted fluorescent radar device according to claim 6, characterized in that: The sliding support assembly (8) comprises a wheel seat (81) and rollers (82) arranged on both sides of the wheel seat (81); The upper end of the wheel seat (81) is rotatably connected to the upper and lower mounting seats of the rack (71) via a rack rotating shaft (83), and the upper end of the wheel seat (81) is rotatably connected to the upper and lower supporting seats of the supporting frame (61) via a supporting rotating shaft (84); The middle parts of the upper guide rail (52) and the lower guide rail (53) of the guide plate (51) are both provided with through grooves (523); The supporting rotating shaft (84) passes through the through slot (523); a rotating shaft sleeve (85) is provided on the supporting rotating shaft (84); and the rotating shaft sleeve (85) is arranged in cooperation with the through slot (523); The rollers (82) on both sides of the wheel seat (81) are supported on the sliding end surfaces (500) of the upper guide rail (52) and the lower guide rail (53).

8. The vehicle-mounted fluorescent radar device according to claim 7, characterized in that: The driving unit (4) comprises a motor (41) and a gear (42) arranged at an output end of the motor (41); The gear (42) is arranged on the guide plate (51) via a driving support (54), and the gear (42) is meshed with a rack (71) of the transmission mechanism (7); The motor (41) drives the gear (42) to rotate, and the gear (42) drives the rack (71) to slide along a first direction in the first guide section (522); When the sliding support assembly (8) on the rack (71) enters the second guide section (521), the gear (42) and the second guide section (521) jointly drive the rack (71) to slide in the first direction while generating displacement in the second direction; The magnitude of the displacement in the second direction is smaller than the width of the gear (42), so that the rack (71) is always meshed with the rack (71) when moving in the second direction; The guide plate (51) is fixed to two sides of the mounting and positioning frame (21) via supporting legs (55).

9. The vehicle-mounted fluorescent radar device according to claim 8, characterized in that: The housing (3) is located outside the rack (71), and the housing (3) comprises an upper shell (31), a lower shell (32) and a protective cover (33); The upper shell (31) is located above the upper guide rail (52) and is fixed to the guide plate (51); the lower shell (32) is located above the lower guide rail (53) and is fixed to the guide plate (51); The protective cover (33) is located above the gear (42) and is fixed on the upper shell (31).

10. A shading method for a vehicle-mounted fluorescent radar, using the vehicle-mounted fluorescent radar device according to any one of claims 1 to 9, characterized in that: In a strong light environment, the gear (42) of the driving unit (4) drives the rack (71) from the first guide section (522) into the second guide section (521); Driving the polarizing plate (60) on the light shielding component (6) to move along a first direction to the front end of the vehicle-mounted fluorescent radar (1), and then affixing it to the mounting positioning frame (21) at the front end of the vehicle-mounted fluorescent radar (1) along a second direction; In a weak light environment, the gear (42) of the driving unit (4) drives the rack (71) from the second guide section (521) into the first guide section (522); The polarizing plate (60) on the shading component (6) is driven to separate from the end surface of the mounting and positioning frame (21) along the second direction, and then move along the first direction to below the vehicle-mounted fluorescent radar (1).

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