Decontamination device for atmospheric detection laser radar window
By designing a combined cleaning device that integrates water spray, wipers, and window blowing components, the problem of removing dirt from lidar windows was solved, ensuring the cleanliness and detection accuracy of the lidar.
Patent Information
- Application Number
- CN202423255466.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-28
AI Technical Summary
The glass windows of atmospheric detection lidar are prone to accumulating dust and dirt due to long-term exposure to the outdoor environment, resulting in reduced light transmittance. Existing automatic cleaning technologies cannot effectively remove the adhered dirt, affecting the detection performance of the equipment.
A cleaning device comprising a water spray assembly, a wiper assembly, and a window blowing assembly was designed. By spraying cleaning water, wiping away dirt, and blowing away residual moisture, combined with periodic control by a controller, the device achieves automatic cleaning of the lidar window.
This enables regular and efficient cleaning of the lidar window, ensuring the cleanliness of the window surface and improving the detection accuracy of the equipment.
Smart Images
Figure CN223811319U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to atmospheric sounding laser radar technical field, specifically a kind of decontamination device for atmospheric sounding laser radar window. BACKGROUND
[0002] Atmospheric sounding laser radar is commonly used atmospheric sounding equipment, and atmospheric sounding laser radar periodically emits laser pulse into atmosphere, then utilizes receiving mirror to receive backscattering echo light signal, and then obtains atmospheric data such as temperature, humidity, atmospheric correction refractive index, atmospheric waveguide characteristic parameter of each height atmosphere by processing and inversion operation to receiving signal.
[0003] Because atmospheric sounding laser radar needs to work in outdoor environment for a long time, is influenced by weather and environment and other external factors, its glass window can gather a large amount of dust, leaves and other interference factors, cause glass window light transmittance to drop, influence the detection effect of equipment.In prior art, the solution of laser radar window pollution mainly adopts manual cleaning as main, automatic cleaning as auxiliary scheme, wherein automatic cleaning is mainly realized by blowing window and automatic heating, can remove leaves and floating dust and other sundries on the window of laser radar, but cannot remove dirt adhered on the window of laser radar. SUMMARY
[0004] In order to solve the deficiency in prior art, the utility model provides a kind of decontamination device for atmospheric sounding laser radar window, can periodically clean laser radar window, and cleaning effect is good, guarantees that the surface of laser radar window is clean.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the specific scheme as follows: a kind of decontamination device for atmospheric sounding laser radar window, comprising:
[0006] Water spraying assembly is used to spray cleaning water to the window of laser radar, and the water spraying assembly includes a spray head fixedly arranged on the shell of laser radar and a water tank for supplying water to the spray head, and the spray head faces the window of laser radar;
[0007] The wiper assembly is used to wipe off the cleaning water adhered to the window of laser radar, and the wiper assembly includes a driving motor fixedly arranged on the shell of laser radar, and the driving motor is drivingly connected with a wiper, and the wiper can contact with the window of laser radar during rotation;The window blowing assembly is used to spray air flow to the window of laser radar, and the window blowing assembly includes a fan fixedly arranged on the shell of laser radar and a wind guide pipe for guiding air flow, and the outlet end of the wind guide pipe faces the window of laser radar;
[0008] The controller is used to control the water spraying assembly, the wiper assembly and the window blowing assembly.
[0009] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: the output shaft of the driving motor extends to the side of the lidar housing and is connected with the wiper, and the spray head is located between the output shaft of the driving motor and the lidar window.
[0010] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: the water tank supplies water to the spray head through a water spray pump, and the water spray pump is electrically connected with the controller.
[0011] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: a base is fixedly arranged on the lidar housing, the output shaft of the driving motor passes through the base and is coaxially fixedly connected with a connecting screw rod, the wiper includes a connecting ring sleeved on the connecting screw rod, and the connecting ring is locked by a connecting nut cooperating with the connecting screw rod.
[0012] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: a positioning nut is further arranged on the connecting screw rod, and the positioning nut is located between the connecting ring and the base.
[0013] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: the wiper includes a swing arm fixedly connected with the connecting ring, one end of the swing arm away from the connecting ring is detachably connected with a strip-shaped support, and the support is detachably connected with a wiper strip for contacting the lidar window.
[0014] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: an accommodating groove is formed in the support, the wiper strip is located outside the accommodating groove, and the wiper strip is integrally connected with a positioning strip, and the positioning strip extends into the accommodating groove.
[0015] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: a water blocking strip is integrally connected between the positioning strip and the wiper strip, and a gap is left between the water blocking strip and the positioning strip to form at least one groove, at least one supporting plate is integrally connected at the opening of the accommodating groove, and the supporting plate is inserted into the groove.
[0016] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding lidar: at least one pressing bolt is arranged in the support, the pressing bolt passes through the two side walls of the accommodating groove in sequence, and the pressing bolt presses the positioning strip on the supporting plate.
[0017] As a further optimization of the above-mentioned window cleaning device for atmospheric sounding laser radar, the controller is electrically connected with two limit switches, and an active area is formed between the two limit switches, and the wiper rotates in the active area and can contact the limit switches during rotation.
[0018] Beneficial effects: the utility model discloses can periodically clean the laser radar window, and the cleaning effect is good, guarantees the surface clean of laser radar window, and then guarantees the accuracy of laser radar. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the front view of the utility model;
[0020] Figure 2 It is the structure schematic view of the wiper;
[0021] Figure 3 It is the side view of the utility model;
[0022] Figure 4 It is the control mode schematic view of the controller.
[0023] BRIEF DESCRIPTION OF DRAWINGS: 1-laser radar shell, 2-driving motor, 3-wiper, 4-sprayer, 5-air duct, 6-fan, 7-water pump, 8-water tank, 9-base, 10-positioning nut, 11-connecting nut, 12-connecting screw, 13-connecting ring, 14-swinging arm, 15-connecting rod, 16-bracket, 17-positioning strip, 18-groove, 19-water baffle, 20-scrubbing strip. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0025] As Figures 1 to 3 shown, a kind of window cleaning device for atmospheric sounding laser radar, including water spraying subassembly, wiper subassembly, blowing window subassembly and controller.
[0026] Water spraying subassembly, for spraying cleaning water to laser radar window, water spraying subassembly includes the sprayer 4 of fixedly arranged on laser radar shell 1 and the water tank 8 for water supply to sprayer 4, and sprayer 4 is towards laser radar window.
[0027] A wiper assembly for wiping off the cleaning water adhered on the lidar window, the wiper assembly comprises a driving motor 2 fixedly arranged on the lidar shell 1, and the driving motor 2 is drivingly connected with a wiper 3, and the wiper 3 can be in contact with the lidar window during rotation.
[0028] A blower assembly for spraying air flow to the lidar window, the blower assembly comprises a fan 6 fixedly arranged on the lidar shell 1 and an air duct 5 for guiding the air flow, and the outlet end of the air duct 5 is directed to the lidar window.
[0029] A controller for controlling the water spraying assembly, the wiper assembly and the blower assembly.
[0030] In use, the controller controls the device to periodically clean the lidar window, and the specific process is as follows: first, the controller drives the water spraying assembly to spray cleaning water to the lidar window, the cleaning water can directly wash away the floating dust adhered on the surface of the lidar window, and on the other hand, the cleaning water can wet the fixed dirt adsorbed on the surface of the lidar window; then, the controller controls the wiper assembly to act, and the wiper 3 is driven to rotate by the driving motor 2, and the wiper 3 is in contact with the lidar window during rotation, and the wet dirt is scraped off; finally, the controller controls the blower assembly to start, and the fan 6 sprays air flow to the lidar window through the air duct 5, which can dry the residual cleaning water and blow away the wet dirt adhered on the edge. In addition, the floating dust on the surface of the lidar window can be blown away by the blower assembly first, and then the cleaning water can be sprayed to the lidar window by the water spraying assembly.
[0031] The utility model discloses can periodically clean the lidar window, and the cleaning effect is good, guarantees the lidar window surface clean, and then guarantees the accuracy of lidar.
[0032] The specific setting position of the spray head 4 is that the output shaft of the driving motor 2 extends to the side of the lidar shell 1 and is connected with the wiper 3, and the spray head 4 is located between the output shaft of the driving motor 2 and the lidar window. By adopting the setting mode, the cleaning water sprayed by the spray head 4 can be directly sprayed on the lidar window, and the cleaning water can be avoided to be disturbed by the output shaft of the driving motor 2. Further, the water tank 8 supplies water to the spray head 4 through the water spraying pump 7, and the water spraying pump 7 is electrically connected with the controller.
[0033] The specific structure and installation mode of the wiper 3 are that the base 9 is fixedly arranged on the laser radar shell 1, the output shaft of the driving motor 2 is coaxially fixedly connected with the connecting screw rod 12 after penetrating through the base 9, the wiper 3 includes the connecting ring 13 sleeved on the connecting screw rod 12, and the connecting ring 13 is locked by the connecting nut 11 matched with the connecting screw rod 12. The installation of the wiper 3 is realized through the cooperation of the connecting screw rod 12, the connecting ring 13 and the connecting nut 11, and after being used for a period of time or the wiper 3 is damaged, the wiper 3 can be conveniently disassembled for maintenance or replacement, so that the laser radar window can be stably cleaned.
[0034] Considering that the wiper 3 needs to be in contact with the laser radar window and also needs to ensure that the wiper 3 is not subjected to excessive force when being in contact with the laser radar window, so that the wiper 3 can be smoothly rotated, the connecting screw rod 12 is further provided with the positioning nut 10, and the positioning nut 10 is located between the connecting ring 13 and the base 9. The distance between the wiper 3 and the laser radar window can be adjusted through the positioning nut 10, so that the wiper 3 can be in contact with the laser radar window to wipe off the wet dirt, and the wiper 3 is also prevented from being subjected to excessive resistance when being in contact with the laser radar window to cause serious deformation, thereby affecting the rotation of the wiper 3 or accelerating the damage of the wiper 3.
[0035] Further, the wiper 3 includes the swing arm 14 fixedly connected with the connecting ring 13, the swing arm 14 is removably connected with the strip-shaped support 16 through the connecting rod 15 at an end away from the connecting ring 13, and the support 16 is removably connected with the wiper strip 20 used for being in contact with the laser radar window. The wiper strip 20 can be made of rubber, and can be deformed to a certain extent when being in contact with the laser radar window, so as to sufficiently wipe off the wet dirt on the surface of the laser radar window.
[0036] The specific connection mode of the support 16 and the wiper strip 20 is that the support 16 is provided with the accommodating groove, the wiper strip 20 is located outside the accommodating groove, and the wiper strip 20 is integrally connected with the positioning strip 17 extending into the accommodating groove. At least one pressing bolt is arranged on the support 16, the pressing bolt penetrates through the two side walls of the accommodating groove in sequence, and the positioning strip 17 is pressed on the supporting plate by the pressing bolt. The positioning strip 17 can be pressed by the pressing bolt, so as to realize the connection of the wiper strip 20 and the support 16. When the wiper strip 20 is damaged due to excessive deformation, the new wiper strip 20 can be quickly replaced. In addition, because the laser radar window usually has more than one, as shown in Figure 3 In order to ensure that the cleaning water sprayed by the nozzle 4 can flow to each laser radar window, the wiper 3 can be rotated to the front of the laser radar window farthest from the nozzle 4 and stopped, part of the cleaning water sprayed by the nozzle 4 can enter the accommodating groove and be guided by the accommodating groove, and finally flow to the laser radar window.
[0037] The wiper strip 20 can scrape off the dirt wetting the surface of the lidar window and the cleaning water remaining on the surface of the lidar window at the same time. In order to ensure that the cleaning water is only scraped to the side of the lidar window, the water blocking strip 19 is integrally connected between the positioning strip 17 and the wiper strip 20, and a gap is left between the water blocking strip 19 and the positioning strip 17 to form at least one groove 18. The opening of the accommodating groove is integrally connected with at least one supporting plate, and the supporting plate is inserted into the groove 18. When the wiper strip 20 is in contact with the lidar window, the water blocking strip 19 is left at a certain distance from the lidar window to form a space capable of restraining the cleaning water, so that the cleaning water can be pushed to the side of the lidar window by the wiper strip 20 and the water blocking strip 19 after being scraped.
[0038] In order to control the driving motor 2 more accurately, the controller is electrically connected with two limit switches, and the two limit switches form an active area in which the wiper 3 rotates and can contact the limit switches during rotation. After the driving motor 2 is started, the driving wiper 3 is driven to rotate in a first direction. When the wiper 3 contacts one of the limit switches, the controller controls the driving motor 2 to rotate in a second direction, and the first direction and the second direction are opposite. When the wiper 3 contacts the other limit switch, the controller controls the driving motor 2 to rotate in the first direction again, so that the wiper 3 reciprocates in the active area, avoiding the wiper 3 from moving too much and causing failure.
[0039] As shown in Figure 4 The controller drives the water pump 7 through the water pump driving circuit, controls the driving motor 2 to act through the motor driving circuit, and drives the fan 6 of the window blowing assembly to act through the relay module, and obtains the state of the two limit switches through the IO data interface. The signal of the controller controlling the water pump driving circuit is a PWM signal. The signal of the controller controlling the motor driving circuit includes an EN signal, an STP signal and a DIR signal. The EN signal is an offline signal, which is used to start or stop the rotation of the driving motor 2. The STP signal is a step signal, and the frequency of the step signal determines the speed of the driving motor 2. Changing the frequency of the STP signal can adjust the speed of the driving motor 2. The DIR signal is a direction signal, and changing the high and low states of the DIR level can control the rotation direction of the driving motor 2, that is, control the driving motor 2 to rotate in a first direction or a second direction.
[0040] The device also includes a 12V DC power supply, which directly supplies power to the water pump driving circuit and the relay module on the one hand, and supplies power to the controller through the voltage reduction circuit on the other hand.
[0041] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A device for decontamination of an atmospheric sounding lidar window, characterized in that, The utility model relates to a laser radar window cleaning device, including: a water spraying assembly for spraying cleaning water to the laser radar window, the water spraying assembly comprising a nozzle (4) fixedly arranged on the laser radar shell (1) and a water tank (8) for supplying water to the nozzle (4), and the nozzle (4) faces the laser radar window; a wiper assembly for wiping off the cleaning water attached to the laser radar window, the wiper assembly comprising a driving motor (2) fixedly arranged on the laser radar shell (1), the driving motor (2) being drivingly connected with a wiper (3), and the wiper (3) being capable of contacting the laser radar window during rotation; a window blowing assembly for spraying air flow to the laser radar window, the window blowing assembly comprising a fan (6) fixedly arranged on the laser radar shell (1) and an air guide pipe (5) for guiding the air flow, the outlet end of the air guide pipe (5) facing the laser radar window; a controller for controlling the water spraying assembly, the wiper assembly and the window blowing assembly; a base (9) is fixedly arranged on the laser radar shell (1), the output shaft of the driving motor (2) passes through the base (9) and is coaxially fixedly connected with a connecting screw rod (12), the wiper (3) comprises a connecting ring (13) sleeved on the connecting screw rod (12), and the connecting ring (13) is locked by a connecting nut (11) matched with the connecting screw rod (12); a positioning nut (10) is further arranged on the connecting screw rod (12), and the positioning nut (10) is located between the connecting ring (13) and the base (9); the wiper (3) comprises a swing arm (14) fixedly connected with the connecting ring (13), one end of the swing arm (14) away from the connecting ring (13) is detachably connected with a strip-shaped support (16), and the support (16) is detachably connected with a wiper strip (20) for contacting the laser radar window; the support (16) is provided with an accommodating groove, the wiper strip (20) is located outside the accommodating groove, and the wiper strip (20) is integrally connected with a positioning strip (17), and the positioning strip (17) extends into the accommodating groove.
2. A device for decontaminating the window of an atmospheric sounding lidar according to claim 1, characterized in that, the output shaft of the driving motor (2) extends to the side of the laser radar shell (1) and is connected with the wiper (3), and the nozzle (4) is located between the output shaft of the driving motor (2) and the laser radar window.
3. A device for decontaminating the window of an atmospheric sounding lidar according to claim 1, characterized in that, the water tank (8) supplies water to the nozzle (4) through a water spraying pump (7), and the water spraying pump (7) is electrically connected with the controller.
4. A device for decontaminating an atmospheric sounding lidar window as claimed in claim 1, characterized in that a water blocking strip (19) is integrally connected between the positioning strip (17) and the wiper strip (20), a gap is formed between the water blocking strip (19) and the positioning strip (17) to form at least one groove (18), at least one supporting plate is integrally connected at the opening of the accommodating groove, and the supporting plate is inserted into the groove (18).
5. A device for decontaminating the window of an atmospheric sounding lidar according to claim 4, characterized in that, at least one pressing bolt is arranged on the support (16), the pressing bolt passes through the two side walls of the accommodating groove in sequence, and the pressing bolt presses the positioning strip (17) against the supporting plate.
6. A device for decontaminating an atmospheric sounding lidar window as defined in claim 1, wherein the controller is electrically connected with two limit switches, an active area is formed between the two limit switches, the wiper (3) rotates in the active area, and the wiper (3) can contact the limit switches during rotation.