Monitoring device for searching moving target

Abstract

The invention discloses a monitoring device for searching a moving target, which comprises a driving mechanism, an image mechanism, a light source reflecting mechanism and a base, the driving mechanism is fixed on the base, the light source reflecting mechanism comprises a reflecting plate, the driving mechanism drives the reflecting plate to circumferentially and continuously rotate around the image mechanism, and the reflecting plate reflects a surrounding light source to the image mechanism for imaging. The invention has the advantages of compact structure, small rotational inertia of the reflector, quick start and stop, low cost, passive power and long service life.

Description

Technical Field

[0001] This invention relates to a monitoring device for searching for moving targets, belonging to the field of monitoring. Background Technology

[0002] With the increasing number of drones, as of the end of June 2025, the number of registered drones nationwide reached 2.726 million, and is still growing at a rate of approximately 300,000 per quarter. This explosive growth in drone ownership and flight activity has significantly increased risks to low-altitude airspace order and public safety. Drone monitoring equipment typically uses infrared imaging gimbals, but these are bulky, structurally inflexible, and their reflectors are heavy, resulting in large rotational inertia and hindering rapid start-stop. Furthermore, existing reflector rotation systems are all active designs, requiring conductive sliders to provide kinetic energy, leading to short lifespans and high costs. Summary of the Invention

[0003] The purpose of this invention is to provide a monitoring device for searching moving targets that is compact in structure, has low rotational inertia, can start and stop quickly, has low cost, and has a long service life.

[0004] To achieve the above objectives, the technical solution of the present invention is: a monitoring device for searching moving targets, comprising a drive mechanism, an image mechanism, a light source reflection mechanism, and a base. The drive mechanism is fixed on the base, and the light source reflection mechanism includes a reflector. The drive mechanism drives the reflector to rotate continuously around the image mechanism in the circumferential direction, and the reflector reflects the surrounding light source to image the image mechanism.

[0005] Preferably, the drive mechanism includes a drive motor with a harmonic reducer, a worm gear, a worm, a fixed shaft, and a worm gear bushing. The drive motor and the fixed shaft are both fixed to the base. The worm gear bushing is rotatably connected to the fixed shaft via bearings. The worm gear is fixed to the worm gear bushing. The drive motor is connected to the worm gear via a transmission connection, and the worm gear meshes with the worm gear. The drive motor can drive the worm gear to rotate, and simultaneously drive the worm gear bushing to rotate. The worm gear transmission method is smoother and allows for rapid start and stop.

[0006] Preferably, a worm synchronous pulley is provided at one end of the worm, and the drive motor is connected to the worm synchronous pulley via a synchronous belt. Using a synchronous belt drive method provides more precise transmission.

[0007] Preferably, the imaging mechanism includes an imaging device and an imaging mounting bracket. The imaging mounting bracket is fixed on a fixed shaft, and the imaging device is fixed inside the imaging mounting bracket. The imaging device needs to be installed; one end of the imaging mounting bracket is fixed to the fixed shaft, and the imaging device is installed inside the imaging mounting bracket, serving a fixing and protection function.

[0008] Preferably, the imaging device is a visible light imaging device, a thermal imaging device, or a shortwave imaging device. Different imaging devices can meet the needs of different application environments.

[0009] Preferably, the light source reflection mechanism further includes a reflector bracket, one end of which is fixedly connected to a worm gear bushing, and the reflector is fixed to the other end of the reflector bracket, with the reflector positioned above the imaging device. The worm gear bushing can drive the reflector bracket to rotate around the imaging device, simultaneously causing the reflector to rotate above the imaging device, reflecting the light source.

[0010] Preferably, the reflector forms a 45° angle with the lens of the imaging device, and the angle is adjustable. The reflector is adjustablely mounted on a reflector bracket, and optimally forms a 45° angle with the lens.

[0011] Preferably, one end of the reflector bracket of the light source reflection mechanism is an annular mounting part, which is fitted onto the outer circumference of the fixed shaft and fixedly connected to the worm gear bushing. The annular mounting part allows for secure fixing to the annular worm gear bushing, resulting in smoother rotation.

[0012] Preferably, it also includes a protective cover, the bottom of which is fixedly connected to the base and covers the imaging mechanism and the light source reflection mechanism. This prevents external interference during operation.

[0013] Preferably, the base includes a mounting plate, a mounting platform, and a mounting cover. The mounting plate and the mounting platform are integrally formed. The mounting platform has a hollow structure, and the mounting cover is fixed to the upper part of the mounting platform. The cavity of the mounting platform is used to install the drive motor, and the mounting cover can fix the worm gear.

[0014] With the above structure, the drive mechanism drives the reflector to rotate continuously around the imaging mechanism in the circumference. The reflector reflects the surrounding light source to the imaging mechanism for image formation. Therefore, the structure is compact, has low rotational inertia, and can achieve rapid start and stop of the reflector. It eliminates the need for a conductive slider to drive the mechanism, employing a passive drive system, resulting in a long service life and lower cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention; Figure 2 yes Figure 1 Right view. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0017] Example 1, see Figure 1 and 2As shown, a monitoring device for searching moving targets includes a drive mechanism 1, an image mechanism 2, a light source reflection mechanism 3, and a base 4. The base 4 includes an integrally formed mounting plate 41 and a mounting platform 42. The mounting plate 41 has screw holes for fixing the monitoring device, while the mounting platform 42 is a hollow structure for mounting a drive motor 11. A mounting cover 43 is fixed to the upper part of the mounting platform 42, with a hole in the middle for mounting a fixing shaft 14 and a worm gear sleeve 15, and providing rotation space for the worm gear sleeve 15. The drive motor 11 is fixed inside the cavity of the mounting platform 42, while the worm gear 13 is fixed to the mounting cover 43 via a worm gear bearing. This mounting method saves installation space, has a compact structure, and also protects and securely fixes the drive motor 11.

[0018] See Figure 1 and 2 As shown, the drive mechanism 1 includes a drive motor 11, a worm gear 12, a worm 13, a fixed shaft 14, and a worm gear sleeve 15. The main function of the drive mechanism 1 is to drive the reflector 32 to rotate continuously around the image mechanism 2. The drive motor 11 has a harmonic reducer to reduce the motor speed. A worm gear synchronous pulley 16 is fixed to one end of the worm 13. The drive motor 11 transmits power to the worm gear synchronous pulley 16 through a synchronous belt 17, so that the worm gear synchronous pulley 16 rotates synchronously with the worm 13. The fixed shaft 14 is fixed to the base 4 and remains fixed. The worm gear sleeve 15 is rotatably connected to the fixed shaft 14 through a bearing. The worm gear 12 is fixed to the worm gear sleeve 15. The drive motor 11 is connected to the worm 13 through a transmission, and the worm 13 meshes with the worm gear 12. Therefore, when the drive motor 11 is working, it can drive the worm 13 to rotate, which in turn drives the worm gear 12 to rotate. The worm gear transmission method can improve the stability of the transmission.

[0019] See Figure 1 and 2 As shown, the imaging mechanism 2 includes an imaging device 21 and an imaging mounting bracket 22. The bottom of the imaging mounting bracket 22 is fixed to the upper part of the fixed shaft 14. The imaging mounting bracket 22 has a semi-enclosed structure and is used to mount and fix the imaging device 21. The imaging device 21 can be selected as a visible light imaging device, a thermal imaging device, or a shortwave imaging device depending on the application scenario. The imaging device 21 faces the sky for aerial monitoring. Of course, depending on the application scenario, if horizontal monitoring of the ground or water surface is required, it can be placed on a flat surface.

[0020] See Figure 1 and 2As shown, the light source reflection mechanism 3 also includes a reflector bracket 31 and a reflector 32. One end of the reflector bracket 31 is an annular mounting part, which is fitted around the outer periphery of the fixed shaft 14 and fixedly connected to the worm gear bushing 15. The upper part is a strip structure, which is installed parallel to the imaging mounting bracket 22 to ensure that the reflector bracket 31 rotates around the imaging mounting bracket 22 when rotating. The reflector 32 is fixed to the other end of the reflector bracket 31 and is located above the imaging device 21. The reflector 32 forms a 45° angle with the lens of the imaging device 21. The angle of the reflector 32 can be adjusted in different usage scenarios. For example, the reflector 32 and the reflector bracket 31 can be connected by a hinge and equipped with a tightening bolt. The function of the reflector 32 is to continuously rotate around the imaging mechanism 2 through the drive mechanism 1, reflecting the surrounding light source to the imaging device 21.

[0021] See Figure 1 and 2 As shown, the bottom of the protective cover 5 is fixedly connected to the base 4 and covers the image mechanism 2 and the light source reflection mechanism 3. The protective cover 5 is cylindrical with a top cover, which can ensure that the monitoring equipment is not affected by external interference during use, and can also provide rain and dust protection when used outdoors, thus improving its service life.

[0022] When this monitoring equipment is in use, the drive motor 11 drives the worm gear 13 to rotate, which in turn drives the worm wheel 12 and the worm wheel bushing 15 to rotate. Simultaneously, this causes the reflector bracket 31 and the reflector 32 to continuously rotate circumferentially around the imaging mechanism 2, reflecting the surrounding light source to the imaging device 21. Because this monitoring equipment uses a worm gear transmission method, it eliminates the need for conductive sliders, resulting in a longer service life, reduced cost, and smoother transmission. Its compact structure and low moment of inertia of the reflector 32 allow for rapid start and stop.

[0023] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A monitoring device for searching moving targets, comprising a drive mechanism (1), an image mechanism (2), a light source reflection mechanism (3), and a base (4), wherein the drive mechanism (1) is fixed on the base (4), characterized in that: The light source reflection mechanism (3) includes a reflector (32). The driving mechanism (1) drives the reflector (32) to rotate continuously around the image mechanism (2). The reflector (32) reflects the surrounding light source to image the image mechanism (2).

2. The monitoring device for searching moving targets according to claim 1, characterized in that: The drive mechanism (1) includes a drive motor (11) with a harmonic reducer, a worm wheel (12), a worm (13), a fixed shaft (14), and a worm wheel bushing (15). The drive motor (11) and the fixed shaft (14) are both fixed on the base (4). The worm wheel bushing (15) is rotatably connected to the fixed shaft (14) through a bearing. The worm wheel (12) is fixed on the worm wheel bushing (15). The drive motor (11) is connected to the worm (13) in a transmission connection. The worm (13) meshes with the worm wheel (12).

3. The monitoring device for searching moving targets according to claim 2, characterized in that: The worm (13) is provided with a worm synchronous pulley (16) at one end, and the drive motor (11) is connected to the worm synchronous pulley (16) through a synchronous belt (17).

4. The monitoring device for searching moving targets according to claim 1, characterized in that: The imaging mechanism (2) includes an imaging device (21) and an imaging mounting bracket (22). The imaging mounting bracket (22) is fixed on a fixed shaft (14), and the imaging device (21) is fixed inside the imaging mounting bracket (22).

5. The monitoring device for searching moving targets according to claim 4, characterized in that: The imaging device (21) is a visible light imaging device, a thermal imaging device, or a shortwave imaging device.

6. The monitoring device for searching moving targets according to claim 1, characterized in that: The light source reflection mechanism (3) also includes a reflector bracket (31), one end of which is fixedly connected to the worm gear bushing (15), and the reflector (32) is fixed at the other end of the reflector bracket (31), and the reflector (32) is located above the imaging device (21).

7. The monitoring device for searching moving targets according to claim 6, characterized in that: The reflector (32) forms a 45° angle with the lens of the imaging device (21) and the angle is adjustable.

8. The monitoring device for searching moving targets according to claim 1, characterized in that: One end of the reflector bracket (31) of the light source reflection mechanism (3) is an annular mounting part, which is fitted on the outer circumference of the fixed shaft (14) and fixedly connected to the worm gear bushing (15).

9. The monitoring device for searching moving targets according to claim 1, characterized in that: It also includes a protective cover (5), the bottom of which is fixedly connected to the base (4) and covers the image mechanism (2) and the light source reflection mechanism (3).

10. The monitoring device for searching moving targets according to claim 1, characterized in that: The base (4) includes a mounting plate (41), a mounting platform (42) and a mounting cover (43). The mounting plate (41) and the mounting platform (42) are integrated. The mounting platform (42) has a hollow structure and the mounting cover (43) is fixed on the upper part of the mounting platform (42).

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