A unmanned aerial vehicle hovering flight speed measuring device

Abstract

The utility model discloses a kind of unmanned plane hover flight speed measuring devices, belong to unmanned plane speed measurement field, a kind of unmanned plane hover flight speed measuring device, including unmanned plane body, the bottom of unmanned plane body is fixedly installed with support frame, the middle part of the bottom of unmanned plane body is fixedly installed with monitoring speed measuring module, the bottom of monitoring speed measuring module is fixedly installed with camera lens, the side of monitoring speed measuring module is fixedly installed with compression device, the bottom of monitoring speed measuring module is fixedly installed with servo motor, the output shaft of servo motor is fixedly sleeved with cleaning device, cleaning device includes cleaning pad, the side of cleaning pad is fixedly connected with limit shaft one, the middle part of limit shaft one is fixedly installed with worm wheel, it can be periodically cleaned and erased to the camera lens surface of unmanned plane in foggy day or rainy day, and corresponding extrusion water removal and dust removal effect can be carried out to cleaning pad, ensure stable operation when long time record.

Description

Technical Field

[0001] This utility model relates to the field of drone speed measurement, and more specifically, to a drone hovering flight speed measurement device. Background Technology

[0002] Currently, there are two main methods for on-site testing of motor vehicle speed measuring instruments. One method involves installing a standard speed measuring device inside a test vehicle. When the test vehicle passes through the speed monitoring area, the motor vehicle speed measuring instrument mounted on the signal pole and the standard speed measuring device installed inside the vehicle simultaneously measure the vehicle speed, thus enabling traceability of the motor vehicle speed measuring instrument. This method is greatly affected by the on-site environment, has low testing efficiency, and poses serious safety hazards. The other method involves placing a standard speed measuring device on the roadside and simultaneously measuring the speed of vehicles in the monitoring area. The measurement results are then compared with those of the motor vehicle speed measuring instrument to calibrate the speed measuring instrument. Although this method does not require actual vehicle testing, the standard speed measuring instrument placed on the roadside has a large angular deviation when measuring the speed of vehicles in the monitoring area. Due to the positional and angular deviations from the speed measuring instrument being tested, the measurement results will be significantly affected, seriously hindering the objective and accurate measurement data.

[0003] In existing technologies, to ensure measurement accuracy, drones are used for aerial photography following vehicles to achieve spatially equivalent measurement results and guarantee accuracy. Drone photography mainly uses cameras for speed measurement. However, in actual use, the surface of the camera is easily affected by external weather conditions. For example, on foggy or rainy days, there may be water vapor or dust on the lens surface, which affects the baseline of the captured image, leading to decreased speed measurement accuracy or data loss, thus reducing the practicality of the device. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a drone hovering flight speed measurement device that can periodically clean and wipe the drone's camera lens in foggy or rainy weather, and can squeeze the cleaning pad to remove water and dust, ensuring stable operation during long-term recording.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A hovering flight speed measurement device for unmanned aerial vehicles (UAVs) includes a UAV body, a support frame fixedly installed at the bottom of the UAV body, a monitoring and speed measurement module fixedly installed at the middle of the bottom of the UAV body, a camera lens fixedly installed at the bottom of the monitoring and speed measurement module, a compression device fixedly installed on the side of the monitoring and speed measurement module, a servo motor fixedly installed at the bottom of the monitoring and speed measurement module, and a cleaning device fixedly sleeved on the output shaft of the servo motor.

[0009] Furthermore, the cleaning device includes a cleaning pad, a limiting shaft is fixedly connected to one side of the cleaning pad, a worm gear is fixedly installed in the middle of the limiting shaft, a worm is meshed on the side of the worm gear, a helical gear is fixedly installed at the top of the limiting shaft, a helical gear is meshed on the surface of the helical gear, a limiting shaft is fixedly installed on the side of the helical gear, and a cam is fixedly installed at the outer end of the limiting shaft.

[0010] Furthermore, the top surface of the cleaning pad is attached to the bottom surface of the camera lens, the first limiting shaft is rotatably installed inside the monitoring and speed measurement module, and the second limiting shaft is rotatably installed inside the monitoring and speed measurement module.

[0011] Furthermore, limit rings are fixedly installed at both ends of the worm gear, and limit frames are rotatably installed on the surface of the limit rings. The limit frames are fixedly installed on the bottom surface of the monitoring and speed measurement module, and the worm gear is fixedly connected to the output shaft of the servo motor through a limit ring.

[0012] Furthermore, the compression device includes a right-angle rod, a base plate is fixedly installed at the bottom end of the right-angle rod, a U-shaped fixing frame is fixedly installed on the side of the right-angle rod, a guide rod is movably sleeved inside the right-angle rod, a top plate is fixedly connected to the bottom end of the guide rod, and a spring is movably sleeved on the surface of the guide rod.

[0013] Furthermore, the top end of the spring is fixedly connected to the surface of the right-angle rod, the bottom end of the spring is fixedly connected to the top surface of the top plate, and the outer end of the U-shaped fixing bracket is fixedly installed on the side of the monitoring and speed measurement module.

[0014] Furthermore, both the top plate and the bottom plate have an integrally formed inclined plate at their outer ends, and the outer ends of the inclined plate are set with rounded corners.

[0015] 3. Beneficial Effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution uses a cleaning device to periodically scrape and clean the surface of the camera lens, thereby preventing water vapor accumulation and dust adhesion on its surface, ensuring the integrity of the overall camera image, and thus ensuring the accuracy of speed measurement.

[0018] (2) This solution utilizes the compression device to achieve the effect of periodic compression while the cleaning device is cleaning, so that when the cleaning pad passes through the inside of the compression device, the dust on its surface is scraped off and the absorbed water is compressed and discharged, ensuring high efficiency in the next cleaning, suitable for long-term use, and improving the practicality of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the external connection structure of the monitoring and speed measurement module in this utility model;

[0021] Figure 3 This is a schematic diagram of the cleaning device structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the compression device in this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. UAV body; 2. Support frame; 3. Monitoring and speed measurement module; 4. Camera lens; 5. Compression device; 6. Servo motor; 7. Cleaning device; 501. Right angle rod; 502. Base plate; 503. Guide rod; 504. Top plate; 505. Spring; 506. U-shaped fixing frame; 701. Cleaning pad; 702. Limiting shaft one; 703. Worm gear; 704. Worm; 705. Helical gear one; 706. Helical gear two; 707. Limiting shaft two; 708. Cam. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1-4 A hovering flight speed measurement device for unmanned aerial vehicles (UAVs) includes a UAV body 1, a support frame 2 fixedly installed at the bottom of the UAV body 1, a monitoring and speed measurement module 3 fixedly installed at the middle of the bottom of the UAV body 1, a camera lens 4 fixedly installed at the bottom of the monitoring and speed measurement module 3, a compression device 5 fixedly installed on the side of the monitoring and speed measurement module 3, a servo motor 6 fixedly installed at the bottom of the monitoring and speed measurement module 3, and a cleaning device 7 fixedly sleeved on the output shaft of the servo motor 6.

[0030] It should be noted that the drone body 1 in this application belongs to existing mature technology. It also includes the camera module in the corresponding monitoring and speed measurement module 3, as well as the use of image reading for speed measurement and data transmission, which are all existing mature technologies. Therefore, this application will not elaborate on this aspect.

[0031] The cleaning device 7 includes a cleaning pad 701. A limiting shaft 702 is fixedly connected to one side of the cleaning pad 701. A worm gear 703 is fixedly installed in the middle of the limiting shaft 702. A worm 704 meshes with the side of the worm gear 703. A helical gear 705 is fixedly installed at the top of the limiting shaft 702. A helical gear 706 meshes with the surface of the helical gear 705. A limiting shaft 707 is fixedly installed on the side of the helical gear 706. The outer end of the limiting shaft 707 is fixedly mounted with... The cleaning pad 701, equipped with a cam 708, has its top surface attached to the bottom surface of the camera lens 4. The first limiting shaft 702 is rotatably installed inside the monitoring speed measurement module 3, and the second limiting shaft 707 is rotatably installed inside the monitoring speed measurement module 3. Limiting rings are fixedly installed at both ends of the worm gear 704. A limiting frame is rotatably installed on the surface of the limiting ring. The limiting frame is fixedly installed on the bottom surface of the monitoring speed measurement module 3. The worm gear 704 is fixedly connected to the output shaft of the servo motor 6 through a limiting ring.

[0032] Specifically, the in-situ rotation can be achieved by using limit shaft 1 702 and limit shaft 2 707, which limits the rotation position and ensures the transmission of the corresponding transmission components. The limit frame can limit the overall rotation of the worm 704, which can reduce the sleeve stress at the outer end of the output shaft of the servo motor 6 and ensure stable transmission between the worm 704 and the worm wheel 703. The cam 708 can apply downward pressure to the compression device 5 once per revolution, so as to achieve the purpose of periodic downward pressure.

[0033] The compression device 5 includes a right-angle rod 501, a base plate 502 fixedly installed at the bottom end of the right-angle rod 501, a U-shaped fixing bracket 506 fixedly installed on the side of the right-angle rod 501, a guide rod 503 movably sleeved inside the right-angle rod 501, a top plate 504 fixedly connected at the bottom end of the guide rod 503, a spring 505 movably sleeved on the surface of the guide rod 503, a top end of the spring 505 fixedly connected to the surface of the right-angle rod 501, a bottom end of the spring 505 fixedly connected to the top surface of the top plate 504, and the outer end of the U-shaped fixing bracket 506 fixedly installed on the side of the monitoring and speed measuring module 3. The outer ends of the top plate 504 and the base plate 502 are both integrally formed with inclined plates, and the outer ends of the inclined plates are set with rounded corners.

[0034] Specifically, the inclined plates at the outer ends of the base plate 502 and the top plate 504, as well as the corresponding rounded corner structure of the inclined plates, can facilitate the entry of the cleaning pad 701. At the same time, they can also support and limit the movement of the cleaning pad 701. The U-shaped fixing bracket 506 can provide space for the rotation position of the cam 708, and also facilitates the direct contact between the top plate 504 and the cam 708 to achieve the corresponding periodic position changes.

[0035] The working principle of this utility model is as follows: When rain, fog, or dust accumulates on the surface of the camera lens 4, affecting the shooting image, the servo motor 6 is started to drive the worm gear 704 to rotate, causing the worm wheel 703 to drive the cleaning pad 701 to rotate, scraping and cleaning the surface of the camera lens 4. At the same time, as the worm wheel 703 rotates, it also drives the first helical gear 705 to rotate, which, together with the second helical gear 706, drives the cam 708 to rotate. The distal end of the cam 708 gradually drives the top plate 504 to press down. During this process, the spring 505 is stretched. During the pressing process, the cleaning pad 701, after wiping, gradually enters between the bottom plate 502 and the top plate 504, completing the operation of squeezing and removing water and dust from its surface. When the distal end of the cam 708 leaves the surface of the top plate 504, the spring 505 drives the top plate 504 to reset, and then vibration shakes off the wiped water and dust, achieving a cyclical cleaning effect.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A hovering flight speed measuring device for unmanned aerial vehicles (UAVs), comprising the UAV body (1), characterized in that: A support frame (2) is fixedly installed at the bottom of the drone body (1). A monitoring and speed measurement module (3) is fixedly installed at the middle of the bottom of the drone body (1). A camera lens (4) is fixedly installed at the bottom of the monitoring and speed measurement module (3). A compression device (5) is fixedly installed on the side of the monitoring and speed measurement module (3). A servo motor (6) is fixedly installed at the bottom of the monitoring and speed measurement module (3). A cleaning device (7) is fixedly sleeved on the output shaft of the servo motor (6).

2. The hovering flight speed measuring device for unmanned aerial vehicles according to claim 1, characterized in that: The cleaning device (7) includes a cleaning pad (701), a limiting shaft (702) is fixedly connected to one side of the cleaning pad (701), a worm gear (703) is fixedly installed in the middle of the limiting shaft (702), a worm (704) is meshed on the side of the worm gear (703), a helical gear (705) is fixedly installed at the top of the limiting shaft (702), a helical gear (706) is meshed on the surface of the helical gear (705), a limiting shaft (707) is fixedly installed on the side of the helical gear (706), and a cam (708) is fixedly installed at the outer end of the limiting shaft (707).

3. The hovering flight speed measuring device for unmanned aerial vehicles according to claim 2, characterized in that: The top surface of the cleaning pad (701) is attached to the bottom surface of the camera lens (4), the first limiting shaft (702) is rotatably installed inside the monitoring speed measurement module (3), and the second limiting shaft (707) is rotatably installed inside the monitoring speed measurement module (3).

4. The hovering flight speed measuring device for unmanned aerial vehicles according to claim 2, characterized in that: Limiting rings are fixedly installed at both ends of the worm (704). A limiting frame is rotatably installed on the surface of the limiting ring. The limiting frame is fixedly installed on the bottom surface of the monitoring and speed measurement module (3). The worm (704) is fixedly connected to the output shaft of the servo motor (6) through a limiting ring.

5. The hovering flight speed measuring device for unmanned aerial vehicles according to claim 1, characterized in that: The compression device (5) includes a right-angle rod (501), a base plate (502) is fixedly installed at the bottom end of the right-angle rod (501), a U-shaped fixing bracket (506) is fixedly installed on the side of the right-angle rod (501), a guide rod (503) is movably sleeved inside the right-angle rod (501), a top plate (504) is fixedly connected at the bottom end of the guide rod (503), and a spring (505) is movably sleeved on the surface of the guide rod (503).

6. The hovering flight speed measuring device for unmanned aerial vehicles according to claim 5, characterized in that: The top end of the spring (505) is fixedly connected to the surface of the right-angle rod (501), the bottom end of the spring (505) is fixedly connected to the top surface of the top plate (504), and the outer end of the U-shaped fixing bracket (506) is fixedly installed on the side of the monitoring speed measurement module (3).

7. The hovering flight speed measuring device for unmanned aerial vehicles according to claim 5, characterized in that: Both the top plate (504) and the bottom plate (502) have an integrally formed inclined plate at their outer ends, and the outer ends of the inclined plate are set with rounded corners.

Images