A low-altitude law enforcement drone

By designing a low-altitude law enforcement drone with a self-contained signal light box and energy conversion mechanism, the problem of traffic congestion caused by the inability of drones to replace faulty signal lights in a timely manner has been solved, achieving rapid traffic flow and sustainable energy utilization, and improving the autonomy and safety of the equipment.

CN120621700BActive Publication Date: 2026-04-03SICHUAN DONGTENG WEIYE TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When existing drones encounter traffic light malfunctions at city street intersections, they are unable to carry the traffic light boxes to the malfunction site in a timely manner to direct and manage traffic, resulting in severe traffic congestion.

Method used

Design a low-altitude law enforcement drone equipped with a self-mounted signal light box, energy conversion mechanism, and lifting support mechanism. The signal light box can be quickly extended and the solar panel can be deployed through a mechanical transmission system, providing continuous power support to ensure the normal operation of the signal light box.

Benefits of technology

This enabled drones to quickly reach faulty intersections, promptly replace traffic lights, reduce traffic disruption time, improve the autonomy and environmental friendliness of the equipment, enhance on-site safety and visibility, and prevent the exacerbation of traffic congestion.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of low-altitude unmanned aerial vehicle (UAV) technology, specifically a low-altitude law enforcement police UAV. It includes a UAV body, multiple wings fixed to the sides of the UAV, and power components mounted on the wings. It also includes a self-mounted traffic light mechanism, comprising a spare box detachably mounted on the bottom of the UAV body, and a retractable traffic light box housed within the spare box for replacing faulty streetlights at intersections. A fixed frame is fixed to the bottom of the UAV body, located in front of the spare box, and a camera is mounted on the fixed frame. This invention has a simple structure. The retractable traffic light box effectively replaces faulty traffic lights, shortening traffic interruption time. Simultaneously, it drives solar panels to deploy, absorb solar energy, and convert it into electrical energy for storage, achieving sustainable energy utilization and facilitating user convenience.
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Description

Technical Field

[0001] This invention relates to the field of low-altitude unmanned aerial vehicle (UAV) technology, and more particularly to a low-altitude law enforcement UAV. Background Technology

[0002] At city street intersections, traffic lights are an important tool for directing traffic, and their proper functioning is crucial for maintaining traffic order and ensuring traffic safety.

[0003] However, in practical applications, traffic lights may occasionally malfunction due to various reasons (such as equipment aging, power failure, etc.), leading to interruption of traffic control, which may in turn cause traffic jams or even traffic accidents.

[0004] Traditionally, when dealing with traffic light malfunctions, the main approach is to rely on traffic police on-site to direct traffic and manage the flow of traffic.

[0005] However, this approach has obvious limitations: first, traffic police may not be able to reach the scene of the breakdown in a timely manner, especially during peak traffic hours or in remote areas; second, even if traffic police arrive at the scene, it will take some time to set up temporary traffic control measures, during which time the traffic congestion may worsen.

[0006] With the rapid development of drone technology, drones are being used more and more widely in fields such as low-altitude law enforcement and traffic monitoring.

[0007] However, existing drone technology mainly focuses on reconnaissance and surveillance functions, and its emergency response capabilities for unexpected situations such as traffic light malfunctions remain limited.

[0008] Specifically, when traffic lights malfunction at city street intersections, although drones can conduct low-altitude reconnaissance and assist traffic police in directing traffic, they cannot carry traffic light boxes to the scene in time to direct and clear traffic when the police are unable to arrive in time, leading to increasingly severe traffic congestion.

[0009] Therefore, in view of this deficiency in the existing technology, it is particularly important to propose a low-altitude law enforcement police drone that can carry its own traffic light box and promptly go to the fault site to direct and clear traffic.

[0010] This drone can not only respond quickly when traffic lights malfunction, effectively shortening traffic disruption time, but also achieve sustainable energy use through its built-in energy conversion mechanism, improving the equipment's autonomy and environmental friendliness.

[0011] Content of this invention

[0012] The purpose of this invention is to solve the shortcomings of the existing technology, which, when traffic lights malfunction at urban street intersections, can only rely on drones for low-altitude reconnaissance in conjunction with on-site traffic police to clear congestion. However, when traffic police cannot arrive at the scene in time, drones cannot carry traffic light boxes to the scene in time to clear congestion, which easily leads to more and more serious congestion. Therefore, this invention proposes a low-altitude law enforcement police drone.

[0013] To achieve the above objectives, the present invention adopts the following technical solution:

[0014] A low-altitude law enforcement police drone includes a drone body, multiple wings fixed to the side of the drone, and a power assembly mounted on the wings. It also has a self-loaded traffic light mechanism, including a spare box detachably mounted on the bottom of the drone body and a traffic light box retractably set in the spare box for supplementing traffic control at intersections with faulty streetlights. The bottom of the drone body is fixed to a mounting frame on the front side of the spare box, and a camera is mounted on the mounting frame.

[0015] A drive assembly 1 for driving the signal light box to extend and retract vertically along the spare box is located inside the spare box and connected to the signal light box;

[0016] The energy conversion mechanism includes a support base fixedly disposed on both sides of the spare box, a flip plate rotatably mounted on the support base, and a solar panel fixedly disposed on the bottom end of the flip plate.

[0017] A second drive assembly for driving the solar panel to unfold is connected between the spare box and the flip plate;

[0018] The lifting support mechanism includes a plug plate that can be detachably installed on the bottom of the drone, an electric push rod fixed to the bottom of the plug plate, and a support frame fixed to the bottom of the drone body.

[0019] The drive assembly includes a second lead screw rotatably connected to the spare box, a first hinge block screwed to the second lead screw, and a scissor bar hinged to the first hinge block;

[0020] The second drive assembly includes a first lead screw that is vertically rotatably connected to the bottom wall of the spare box. The first lead screw is threadedly connected to a push plate that slides and limits the movement of the spare box side and a hinge rod that is hinged to the push plate and the flip plate.

[0021] Furthermore, the top of the spare box is provided with a sliding groove, and a second hinge block that is hinged to the two scissor bars is slidably connected in the sliding groove.

[0022] Furthermore, a first bevel gear and a second bevel gear that mesh with each other are fixed to the top end of the first lead screw and the second lead screw, respectively.

[0023] Furthermore, the power assembly includes a drive motor fixed to the wing and a propeller blade fixed to the output shaft of the drive motor.

[0024] Furthermore, the bottom of the drone body is fixed with two first mounting plates for fixing the spare box and a first mounting slot on the top of the spare box for the first mounting to be inserted.

[0025] Furthermore, the bottom of the drone body is fixed with a second mounting plate, a second mounting slot provided on the plug-in plate for the second mounting plate to be inserted, and a limiting plate for positioning the plug-in plate.

[0026] Furthermore, the front side of the drone body is provided with inclined heat dissipation holes and heat dissipation grilles fixed in the heat dissipation holes.

[0027] Furthermore, support frames are fixed at both sides of the bottom edge of the drone body.

[0028] Compared with the prior art, the advantages of the present invention are as follows:

[0029] 1. This solution utilizes a drone to quickly reach the faulty intersection. A first lead screw drives two first hinge blocks closer together, and a scissor bar drives two second hinge blocks to slide on the traffic light box. The traffic light box extends out of its spare box following the movement trajectory of the two scissor bars, replacing the faulty traffic light. Simultaneously, the meshing between the first and second bevel gears causes the second lead screw to rotate synchronously with the first lead screw, pushing the plate upwards under the action of the second lead screw. With the help of the hinge rod and the support base as a fulcrum, the solar panel rotates and unfolds to a horizontal position. The solar panel fully absorbs solar energy and converts it into electrical energy. This electrical energy can be stored in a battery or directly power the replacement traffic light box, ensuring a continuous and stable power supply and guaranteeing its normal operation.

[0030] 2. The deployment and utilization of solar panels in this solution enable the drone to absorb and convert solar energy into electricity, which not only provides power support for the drone itself, but also realizes the sustainable use of energy, reduces dependence on external power sources, and improves the autonomy and environmental friendliness of the equipment.

[0031] 3. Before the drone lands, this solution uses an electric push rod to adjust the height of the support frame and the drone itself, ensuring that the drone can be clearly seen by vehicle drivers and pedestrians when landing, thus enhancing on-site safety and visibility and reducing safety hazards caused by poor visibility. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a low-altitude law enforcement drone proposed in this invention;

[0033] Figure 2 This is a schematic diagram of the structure of a low-altitude law enforcement drone proposed in this invention, viewed from below.

[0034] Figure 3 This is a schematic diagram of the spare box and the first mounting plate of a low-altitude law enforcement drone proposed in this invention.

[0035] Figure 4 This is a cross-sectional structural diagram of the spare container portion of a low-altitude law enforcement police drone proposed in this invention;

[0036] Figure 5 This invention proposes a low-altitude law enforcement drone. Figure 4 Enlarged diagram of part A in the diagram;

[0037] Figure 6 This is a schematic diagram of the first lead screw, push plate, second lead screw, signal light box, and other components of a low-altitude law enforcement police drone proposed in this invention;

[0038] Figure 7 This invention proposes a low-altitude law enforcement drone. Figure 6 Enlarged diagram of part B in the diagram;

[0039] Figure 8 This is a schematic diagram of the structure of a low-altitude law enforcement drone proposed in this invention, consisting of a second mounting plate, a limiting plate, a plug-in plate, an electric push rod, and a fixing frame.

[0040] In the diagram: 1-UAV body; 101-Wing; 102-Power assembly; 1020-Drive motor; 1021-Propeller blade; 103-Camera; 1030-Fixed frame one; 2-Spare box; 201-Support base; 202-Flip plate; 203-Solar panel; 204-First mounting plate; 3-First lead screw; 301-Push plate; 302-Hinge rod; 4-First bevel gear; 401-Second lead screw; 402-Second bevel gear; 403-First hinge block; 404-Scissor bar; 405-Second hinge block; 406-Signal light box; 5-Second mounting plate; 501-Limit plate; 502-Plug-in plate; 503-Electric push rod; 504-Fixed frame two; 6-Heat dissipation grille; 7-Support frame. Detailed Implementation

[0041] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, and not all embodiments.

[0042] Reference Figures 1-8A low-altitude law enforcement drone includes a drone body 1, multiple wings 101 fixed to the side of the drone, and a power assembly 102 mounted on the wings 101. The power assembly 102 includes a drive motor 1020 fixed to the wings 101, propeller blades 1021 fixed to the output shaft of the drive motor 1020, and further includes:

[0043] The self-loading signal light mechanism includes a spare box 2 that can be detachably installed on the bottom of the UAV body 1, and a signal light box 406 that can be retracted and installed in the spare box 2 for replacing the faulty street light at the intersection to direct traffic. The bottom of the UAV body 1 is fixedly provided with a fixed frame 1030 on the front side of the spare box 2, and a camera 103 is installed on the fixed frame 1030.

[0044] A drive assembly 1 for driving the signal light box 406 to extend and retract vertically along the spare box 2 is located inside the spare box 2 and connected to the signal light box 406. The drive assembly 1 includes a second lead screw 401 rotatably connected inside the spare box 2, a first hinge block 403 screwed to the second lead screw 401, and a scissor bar 404 hinged to the first hinge block 403. The top of the spare box 2 is provided with a slide groove, and a second hinge block 405 that is hinged to the two scissor bars 404 respectively is slidably connected in the slide groove.

[0045] The energy conversion mechanism includes a support base 201 fixed along both sides of the spare box 2, a flip plate 202 rotatably mounted on the support base 201, and a solar panel 203 fixed on the bottom end of the flip plate 202.

[0046] The second drive assembly for driving the solar panel 203 to unfold is connected between the spare box 2 and the flip plate 202. The second drive assembly includes a first lead screw 3 that is vertically rotatably connected to the bottom wall of the spare box 2. The first lead screw 3 is threadedly connected to a push plate 301 that slides and limits the side of the spare box 2, and a hinge rod 302 that is hinged between the push plate 301 and the flip plate 202. The top end of the first lead screw 3 and the second lead screw 401 are respectively fixed with a meshing first bevel gear 4 and a second bevel gear 402.

[0047] In this embodiment, the drive motor 1020 operates at high speed, causing the propeller blades 1021 to rotate rapidly. After the UAV body 1 flies to the designated location, the first lead screw 3 begins to rotate. Due to the limiting sliding design between the push plate 301 and the spare box 2, the push plate 301 moves steadily upward under the action of the lead screw. The push plate 301 is connected to the flip plate 202 via the hinge rod 302, causing the solar panel 203 to rotate and unfold until it reaches a horizontal state. The solar panel 203 can then fully absorb solar energy and efficiently convert it into electrical energy, which is then input into the storage battery. The storage can also directly provide power to the drone body 1, realizing the sustainable use of energy. At the same time, the second lead screw 401 will also rotate synchronously. Since the thread direction at both ends of the second lead screw 401 is opposite to the thread direction of the two first hinge blocks 403, the two first hinge blocks 403 will move closer to each other under the action of the lead screw. Through the linkage of the two scissor bars 404, the two second hinge blocks 405 will also move closer to each other. The signal light box 406 can then move downward smoothly and extend the spare box 2 to replace the faulty signal light in time, effectively speeding up the traffic flow.

[0048] Reference Figure 3 and Figure 4 The bottom of the UAV body 1 is fixed with two first mounting plates 204 for fixing the spare box 2 and a first mounting slot on the top of the spare box 2 for first mounting insertion.

[0049] In this embodiment, the insertion and engagement between the first mounting plate 204 and the first mounting slot facilitates the disassembly or installation of the spare box 2.

[0050] Reference Figure 1 and Figure 8 The lifting support mechanism includes a plug plate 502 detachably mounted on the bottom of the drone, an electric push rod 503 fixed on the bottom of the plug plate 502, and a support frame 7 fixed on the bottom of the drone body 1. The bottom of the drone body 1 is fixed with a second mounting plate 5, a second mounting groove provided on the plug plate 502 for the second mounting plate 5 to be inserted, and a limiting plate 501 for positioning the plug plate 502.

[0051] In this embodiment, the insertion and connection between the second mounting plate 5 and the second mounting slot enables the installation or removal of the plug-in plate 502, and the limiting plate 501 is used to limit the plug-in plate 502 when it is inserted into the second mounting plate 5.

[0052] Reference Figure 1 The front side of the drone body 1 is provided with inclined heat dissipation holes and heat dissipation grilles 6 fixed in the heat dissipation holes. Support frames 7 are fixed at both sides of the bottom of the drone body 1. A storage battery for powering various components is installed inside the drone body 1.

[0053] In this embodiment, the heat generated by the drone body 1 during long-term operation can be dissipated through the heat dissipation holes. The heat dissipation grille 6 prevents debris from entering the drone body 1 through the heat dissipation holes. The battery can receive and store the electrical energy converted by the solar panel 203 and continuously power the various components of the drone body 1.

[0054] The implementation principle of a low-altitude law enforcement police drone in this application embodiment is as follows: When the traffic lights at a street intersection malfunction, we first precisely insert the spare box 2 into the first mounting plate 204 through the first mounting slot. Then, we firmly insert the plug-in plate 502 into the second mounting plate 5 through the second mounting slot. At this time, we use a remote controller to flexibly control the operation of the drone body 1, and the drive motor 1020 runs at high speed, driving the propeller blade 1021 to rotate rapidly.

[0055] During the rotation of the propeller blades, not only is an upward lift generated, but a backward force is also exerted on the surrounding air. According to the physical principle of action and reaction, the air will correspondingly generate a forward thrust on the propeller blades. It is this thrust that propels the drone to fly smoothly and work closely with camera 103 to accurately reach the designated location.

[0056] Once the drone successfully reaches the intersection where the malfunction occurred, the electric push rod 503 begins to function, driving the fixed frame 504 to slowly move downwards. This precisely adjusts the distance between the support frame 7 and the drone body 1, ensuring that the height of the drone body 1 can be clearly seen by vehicle drivers and pedestrians when it lands, thus guaranteeing visibility at the scene.

[0057] Next, the drone body 1 lands smoothly, and the support frame 7 makes successful contact with the ground. At this point, the adjustment motor is activated, which drives the first lead screw 3 to rotate. Due to the limit sliding design between the push plate 301 and the spare box 2, the push plate 301 moves steadily upward under the action of the lead screw. The push plate 301 is connected to the flip plate 202 through the hinge rod 302. With the support base 201 as the fulcrum, the solar panel 203 rotates and unfolds until it reaches a horizontal state. In this way, the solar panel 203 can fully absorb the sun's energy and efficiently convert it into electrical energy. This electrical energy can be stored in the battery or directly provide power to the drone body 1, realizing the sustainable use of energy.

[0058] Meanwhile, thanks to the tight meshing between the first bevel gear 4 and the second bevel gear 402, when the first lead screw 3 rotates, the second lead screw 401 will also rotate synchronously. Since the thread directions at both ends of the second lead screw 401 are opposite to the thread directions of the two first hinge blocks 403, the two first hinge blocks 403 will move closer to each other under the action of the lead screw. Through the linkage of the two scissor bars 404, the two second hinge blocks 405 will also move closer to each other. Under this ingenious mechanical transmission, the signal light box 406 can move downward smoothly and extend the spare box 2 to replace the faulty signal light in time, effectively speeding up the traffic flow and avoiding the embarrassing situation of increasingly serious traffic congestion caused by signal light failure, thus ensuring that the traffic order at the intersection can be quickly restored to normal.

[0059] All structures in this application can be customized in terms of material and length according to actual usage. The attached drawings are schematic structural diagrams, and the actual dimensions can be adjusted accordingly.

[0060] The above description is merely a preferred embodiment of this invention, but the scope of protection of this embodiment is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this embodiment, based on the technical solution of this embodiment and its inventive concept, should be covered within the scope of protection of this embodiment.

Claims

1. A low-altitude law enforcement drone, comprising a drone body, multiple wings fixed to the side of the drone, and a power assembly mounted on the wings, characterized in that, Also includes: The self-loading signal light mechanism includes a spare box that can be detachably installed on the bottom of the UAV body, and a signal light box that can be retracted and set in the spare box for replacing faulty street lights at intersections to direct traffic. The bottom of the UAV body is fixedly mounted on the front side of the spare box, and a camera is mounted on the fixed frame. A drive assembly 1 for driving the signal light box to extend and retract vertically along the spare box is located inside the spare box and connected to the signal light box; The energy conversion mechanism includes a support base fixedly disposed on both sides of the spare box, a flip plate rotatably mounted on the support base, and a solar panel fixedly disposed on the bottom end of the flip plate. A second drive assembly for driving the solar panel to unfold is connected between the spare box and the flip plate; The lifting support mechanism includes a plug plate that can be detachably installed on the bottom of the drone, an electric push rod fixed to the bottom of the plug plate, and a support frame fixed to the bottom of the drone body. The drive assembly includes a second lead screw rotatably connected to the spare box, a first hinge block screwed to the second lead screw, and a scissor bar hinged to the first hinge block; The second drive assembly includes a first lead screw that is vertically rotatably connected to the bottom wall of the spare box. The first lead screw is threadedly connected to a push plate that slides and limits the movement of the spare box side and a hinge rod that is hinged to the push plate and the flip plate.

2. The low-altitude law enforcement drone according to claim 1, characterized in that, The top of the spare box is provided with a sliding groove, and a second hinge block that is hinged to the two scissor bars is slidably connected in the sliding groove.

3. The low-altitude law enforcement drone according to claim 1, characterized in that, A first bevel gear and a second bevel gear that mesh with each other are fixed to the top of the first lead screw and the second lead screw, respectively.

4. A low-altitude law enforcement drone according to claim 1, characterized in that, The power assembly includes a drive motor fixed to the wing and a propeller blade fixed to the output shaft of the drive motor.

5. A low-altitude law enforcement drone according to claim 1, characterized in that, The bottom of the drone body is fixed with two first mounting plates for fixing the spare box and a first mounting slot on the top of the spare box for the first mounting to be inserted.

6. A low-altitude law enforcement drone according to claim 1, characterized in that, The bottom of the drone body is fixed with a second mounting plate, a second mounting slot provided on the plug-in plate for the second mounting plate to be plugged in, and a limiting plate for positioning the plug-in plate.

7. A low-altitude law enforcement drone according to claim 1, characterized in that, The front side of the drone body has an inclined heat dissipation hole and a heat dissipation grille fixed in the heat dissipation hole.

8. A low-altitude law enforcement drone according to claim 1, characterized in that, Support frames are fixed to both sides of the bottom edge of the drone body.

Citation Information

Patent Citations

  • Unmanned aerial vehicle with signal enhancing and light regulating function

    CN108298085A

  • Solar auxiliary power supply system of multi-rotor unmanned aerial vehicle

    CN111547235A