Unmanned aerial vehicle (UAV) detection equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2026-08-14
AI Technical Summary
这一过程依赖于高效的部署和持续监控，确保在复杂环境中快速响应，但实际操作中需考虑环境干扰和实时性要求
[0006]本实用新型的有益效果是：通过设置校准装置，在侦测设备启动时自动驱动其朝北转动校准，确保了侦测方向的高精度和可靠性，避免了人工干预带来的误差；校准结束后装置弹起，完全脱离与侦测设备的接触，保障了侦测设备后续自由转动的灵活性和稳定性，不会因残留阻力影响侦测性能。此外，该设计简化了操作流程，提高了设备在野外环境中的适应性和耐用性，例如在风力或不平坦地面条件下，校准过程依然能高效完成。作为一种优选方式，校准装置可采用机械式弹起机构，包括一个基座安装于放置平台，通过压缩弹簧和滑动导轨实现：校准时，电机驱动齿轮与侦测设备啮合带动转动；校准结束时，弹簧释放推动基座向上弹起，使齿轮脱离啮合，从而不影响侦测设备转动。另一种优选方式是采用电磁锁定装置，其包括电磁线圈和可移动卡销：校准时，电磁铁断电，卡销在弹簧作用下伸出卡入侦测设备槽口，驱动其转动；校准结束，电磁铁得电吸回卡销，使其完全缩回基座内，避免任何接触干扰。这些结构通过简单的物理机制实现了功能性要求，无需复杂控制，提升了系统的鲁棒性和维护便利性。
Smart Images
Figure CN224636041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electronic countermeasures device, and more particularly to a drone detection device. Background Technology
[0002] Drone detection equipment plays a crucial role in today's security field, widely used in airports, military bases, nuclear power plants, and large public event venues to prevent potential threats from unauthorized drone intrusions, such as data theft, physical damage, or privacy violations. During operation, the equipment is typically deployed in fixed locations or on mobile platforms. Upon startup, an initialization procedure is performed, including automatic north-pointing calibration to ensure directional accuracy. Subsequently, integrated radar, radio frequency detectors, and acoustic sensors scan the surrounding environment, collecting drone signal characteristics (such as flight paths and electromagnetic radiation) in real time. Algorithms process the data, identifying threat targets and triggering alarm systems or coordinated countermeasures. This process relies on efficient deployment and continuous monitoring to ensure rapid response in complex environments; however, environmental interference and real-time requirements must be considered in practical operation.
[0003] However, existing technologies have significant drawbacks, particularly in the automatic calibration of north-pointing. While calibration is crucial for ensuring the orientation accuracy of equipment, current devices typically employ complex mechanical structures or electronic components, such as multiple combinations of high-precision gyroscopes, accelerometers, and software algorithms, which increases manufacturing costs and system complexity. This design results in time-consuming calibration processes, difficult maintenance, and susceptibility to environmental factors (such as vibration or temperature changes), leading to reduced equipment reliability and deployment efficiency, and potentially delaying threat detection and response in emergency scenarios. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a drone detection device that facilitates automatic calibration upon startup.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a drone detection device, comprising a placement platform for placing the detection device, the placement platform comprising a plurality of support legs for supporting the placement platform, the detection device being rotatably mounted on the placement platform, and a calibration device being provided between the placement platform and the detection device, the calibration device driving the detection device to rotate northward for calibration when the detection device is started, and the calibration device springing up after calibration without affecting the rotation of the detection device.
[0006] The beneficial effects of this invention are as follows: By setting up a calibration device, the detection equipment is automatically driven to rotate northward for calibration when it is started, ensuring high accuracy and reliability of the detection direction and avoiding errors caused by manual intervention. After calibration, the device springs up, completely disengaging from the detection equipment, ensuring the flexibility and stability of the detection equipment's subsequent free rotation, and preventing residual resistance from affecting detection performance. Furthermore, this design simplifies the operation process and improves the adaptability and durability of the equipment in outdoor environments, such as windy or uneven ground conditions, allowing the calibration process to be completed efficiently. As a preferred embodiment, the calibration device can employ a mechanical spring-loaded mechanism, including a base mounted on a placement platform, achieved through a compression spring and sliding guide rails: during calibration, a motor drives a gear to mesh with the detection equipment, causing it to rotate; at the end of calibration, the spring releases, pushing the base upwards and disengaging the gear, thus not affecting the rotation of the detection equipment. Another preferred approach is to use an electromagnetic locking device, which includes an electromagnetic coil and a movable locking pin: during calibration, the electromagnet is de-energized, and the locking pin extends under the action of a spring and engages with the slot of the detection device, driving it to rotate; after calibration, the electromagnet is energized and retracts the locking pin, causing it to fully retract into the base and preventing any contact interference. These structures achieve functional requirements through simple physical mechanisms, eliminating the need for complex controls and improving the robustness and ease of maintenance of the system.
[0007] Furthermore, the placement platform is provided with a rotating motor on the side facing away from the detection device, which is used to drive the detection device to rotate. The rotating motor includes a rotating shaft fixed to the detection device; a positioning mechanism for the detection device to rotate together with the rotating shaft, which provides a signal to the detection device to reset its direction when it rotates to the north.
[0008] This technical solution provides stable power through a rotating motor, precisely controlling the rotation angle of the detection equipment. Combined with a positioning mechanism that automatically triggers a reset signal in the north-facing position, it ensures the timeliness and accuracy of direction calibration, reducing human operation delays. This improves the response speed of the detection equipment in dynamic environments, such as quickly resetting the reference direction when tracking moving targets, enhancing overall detection efficiency. Simultaneously, the fixed design of the rotating shaft simplifies the transmission structure and reduces the risk of mechanical failure. As a preferred approach, the positioning mechanism can be designed as a Hall effect sensor system: including a permanent magnet fixed on the rotating shaft and a Hall chip mounted on the placement platform. When the shaft rotates to the point where the magnet aligns with the chip (i.e., north-facing), an electrical signal is generated to trigger a reset. The Hall chip is connected to the detection equipment via a microcontroller, achieving contactless signal transmission and avoiding wear. Another preferred approach is to use a photoelectric encoder: the encoder disk is attached to the rotating shaft, and a specific grating pattern is engraved on the disk. When rotating to the north-facing position, the photoelectric sensor detects the change in the pattern and outputs a pulse signal, which is converted into a reset command via a circuit board. These structures operate based on electromagnetic or optical principles, ensuring high precision and durability, and are suitable for various harsh weather conditions.
[0009] Furthermore, the detection device also includes a positioning ring rotatably mounted on a rotating shaft, the positioning ring having a positioning groove, the positioning ring rotating so that the positioning groove always faces north, the positioning mechanism including an electromagnet, a spring, and a positioning block adapted to the shape of the positioning groove, the electromagnet losing its magnetism when calibration is started and using the spring to press the positioning block against the positioning block to attract the positioning block and detach the positioning block from the positioning groove, the electromagnet attracting the positioning block after calibration is completed and detaching the positioning block from the positioning groove.
[0010] This scheme utilizes a magnetic positioning ring (i.e., a ring magnet) and a north-facing positioning groove on the positioning ring, set at the factory, to ensure the positioning groove always faces north, providing a reliable reference for calibration. The synergistic action of the electromagnet and the spring enables automated control: when calibration starts, demagnetization releases the positioning block, causing it to slide against the positioning ring; when calibration ends, magnetization re-attracts the positioning block, simplifying operation and improving accuracy. This avoids calibration failures caused by external interference and enhances the system's stability in vibration environments. As a preferred method, the positioning block is designed as a slider structure with ball bearings: when the electromagnet demagnetizes, the spring pushes the slider to roll along the outer surface of the positioning ring; the ball bearings reduce friction, allowing the positioning ring to rotate freely until the positioning groove is aligned; after alignment, the slider engages in the groove, triggering an end signal. Another preferred method integrates the electromagnet onto a fixed base, with the positioning block made of ferromagnetic material: when demagnetized, the spring extends, pushing the positioning block to contact the positioning ring; the end of the positioning block has a tapered design for easy sliding into the groove; when magnetized, the electromagnet forcefully pulls back the positioning block, ensuring complete detachment. These structures achieve precise calibration through physical contact and electromagnetic control, eliminating the need for additional sensors and reducing costs.
[0011] Furthermore, a wire-passing space is provided between the positioning groove and the placement platform, and an adsorption switch for energizing the electromagnet is provided in the positioning groove.
[0012] The wire passage space design allows wires or cables to pass smoothly, avoiding the risk of cable tangling or breakage during rotation, thus improving equipment safety and lifespan. The adsorption switch automatically triggers the electromagnet when the positioning block engages, achieving automated control upon completion of calibration, reducing manual intervention and improving system response speed and reliability. This is particularly suitable for long-term deployment scenarios, ensuring stable power supply to the electromagnet. As a preferred method, the adsorption switch uses a microswitch: installed at the bottom of the positioning slot, the switch contacts close when the positioning block is pressed into the slot, connecting the circuit and energizing the electromagnet; the wire passage space is designed as an annular groove or conduit, guiding the wires through the placement platform to avoid exposure. Another preferred method is to use a pressure-sensitive diaphragm: covering the positioning slot, it generates an electrical signal when the positioning block contacts it, driving the electromagnet coil through an amplifier; the wire passage space ensures sufficient clearance for the wires. These structures operate based on the principle of electrical contact, ensuring the immediacy and accuracy of the switch action.
[0013] Furthermore, a wire-passing space is provided between the positioning slot and the placement platform, and a reset switch for resetting the orientation of the detection device is provided in the positioning slot.
[0014] The cable passage space effectively manages cable layout and prevents rotational interference. The reset switch directly resets the detection device's orientation when the positioning block engages, ensuring immediate application of calibration results, avoiding signal delays or errors, and improving detection accuracy and system consistency. This simplifies control logic, allowing the device to quickly enter working condition after startup. As a preferred approach, the reset switch is designed as a push-button contact switch: embedded in the positioning slot, the switch is triggered when the positioning block is pressed in, connecting to the detection device's main control board via a wire to send a reset pulse signal; the cable passage space uses a U-shaped channel, wider than the cable diameter, facilitating maintenance. Another preferred approach is to use a photoelectric switch: an infrared transmitter and receiver are installed in the positioning slot; when the positioning block enters the slot, it blocks the light path, generating a signal to reset the direction; the cable passage space height is adjustable to accommodate different cable types. These structures achieve functionality through mechanical or optical triggering, ensuring reliable and durable reset actions. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0016] Figure 2 This is a partially enlarged schematic diagram of the positioning mechanism in an embodiment of the present invention;
[0017] Figure 3 This is a partial cross-sectional view of the positioning mechanism according to an embodiment of the present utility model;
[0018] Figure 4 This is a top view of the positioning ring in an embodiment of the present invention. Detailed Implementation
[0019] This utility model embodiment provides a drone detection device, such as... Figure 1-4 As shown: The device includes a placement platform 1, which comprises several support legs 11 for stably supporting the entire device on the ground. A detection device 2 is rotatably mounted on the placement platform 1. The detection device 2 is used to detect UAV signals and internally includes a sensor (not shown) and a processor (not shown). A calibration device 3 is positioned between the placement platform 1 and the detection device 2. When the detection device 2 is activated, the calibration device 3 drives the detection device 2 to rotate northward for calibration, and automatically springs back after calibration to avoid affecting the normal rotation of the detection device 2.
[0020] A rotating motor 4 is installed on the side of the placement platform 1 facing away from the detection device 2. The rotating motor 4 is a stepper motor or servo motor of the prior art. The rotating motor 4 includes a rotating shaft 41, which is fixedly connected to the detection device 2, thereby driving the detection device 2 to rotate around a vertical axis. The detection device 2 also includes a positioning ring 21, which is rotatably mounted on the rotating shaft 41. The positioning ring 21 is provided with a positioning groove 211, which is manually or automatically adjusted during the initial installation of the device to always point to due north, so as to provide a directional reference.
[0021] The calibration device 3 includes a positioning mechanism 5, which rotates together with the rotating shaft 41. The positioning mechanism 5 includes an electromagnet 51, a spring 52, and a positioning block 53. The positioning block 53 is fitted to the positioning groove 211 to achieve a locking fit. The electromagnet 51 loses its magnetism when calibration is started and uses the spring 52 to press the positioning block 53 against the positioning ring 21. After calibration, the electromagnet 51 attracts the positioning block 53, disengaging it from the positioning groove 211. A wire passage space 7 is provided between the positioning groove 211 and the placement platform 1 to accommodate wires and prevent rotational interference. The positioning groove 211 contains an attraction switch 8 and a reset switch 9. The attraction switch 8 energizes the electromagnet 51, and the reset switch 9 resets the orientation of the detection device 2.
[0022] The working principle is as follows: When the detection device 2 is started, it automatically enters the calibration program. At this time, the electromagnet 51 is de-energized and loses its magnetism. The pop-out spring 52 pushes the positioning block 53, causing it to elastically abut against the surface of the positioning ring 21. The abutment of the positioning block 53 does not hinder the rotation of the positioning ring 21. The rotating motor 4 drives the detection device 2 and the positioning ring 21 to rotate slowly through the rotating shaft 41, while the positioning block 53 remains stationary. As it rotates, when the positioning groove 211 rotates to the corresponding position of the positioning block 53, the positioning block 53, under the action of the pop-out spring 52, engages in the positioning groove 211 and simultaneously presses against the adsorption switch 8 and the reset switch 9. After the two switches are triggered: on the one hand, the electromagnet 51 is energized, and the electromagnet 51 generates a magnetic force to adsorb the positioning block 53, overcoming the elastic force of the pop-out spring 52, causing the positioning block 53 to disengage from the positioning groove 211; on the other hand, the reset switch 9 sends a reset signal to the processor of the detection device 2, resetting the current direction of the detection device 2 to true north. The calibration program ends. The pop-up action of calibration device 3 is achieved by the reset or auxiliary mechanism of pop-out spring 52, causing it to disengage. Detection device 2 can rotate freely to perform UAV detection tasks.
[0023] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.
Claims
1. An unmanned aerial vehicle detection device, comprising a placement platform for placing the detection device, the placement platform comprising a plurality of support legs for supporting the placement platform, the detection device being rotatably arranged on the placement platform, characterized in that: A calibration device is provided between the placement platform and the detection device. When the detection device is started, the calibration device drives the detection device to rotate northward for calibration. After calibration, the calibration device pops up and does not affect the rotation of the detection device.
2. The UAV detection device of claim 1, wherein: The placement platform is equipped with a rotating motor on the side facing away from the detection device, which is used to drive the detection device to rotate. The rotating motor includes a rotating shaft fixed to the detection device. The detection device rotates together with the rotating shaft, and the positioning mechanism gives the detection device a signal to reset the direction when it rotates to the north.
3. The drone detection apparatus of claim 2, wherein: The detection device also includes a positioning ring rotatably mounted on a rotating shaft. The positioning ring has a positioning groove, and the positioning groove always faces north when the positioning ring rotates. The positioning mechanism includes an electromagnet, a spring, and a positioning block that matches the shape of the positioning groove. When calibration is started, the electromagnet loses its magnetism and uses the spring to press the positioning block against the positioning block, attracting the positioning block and detaching it from the positioning groove. After calibration is completed, the electromagnet attracts the positioning block and detaches it from the positioning groove.
4. The drone detection apparatus of claim 3, wherein: A wire-passing space is provided between the positioning groove and the placement platform, and an adsorption switch for energizing the electromagnet is provided in the positioning groove.
5. The drone detection apparatus of claim 3, wherein: A wire-passing space is provided between the positioning slot and the placement platform, and a reset switch for resetting the orientation of the detection device is provided in the positioning slot.