Three-dimensional space multi-target detection system

Abstract

The utility model discloses a three-dimensional space multi-target detection system, which comprises a base mounted on the ground, an action mechanism used for forming a three-dimensional motion structure, a detection mechanism used for forming a multi-target detection module, and a calibration mechanism used for calibrating a detection result, the actuating mechanism is arranged at the upper end of the base, the detection mechanism is assembled at the end part of the actuating mechanism, and the calibration mechanism is arranged at the upper part of the actuating mechanism corresponding to the detection mechanism. The detection mechanism is arranged to be matched with the calibration mechanism, multiple pieces of target information can be detected in a three-dimensional space under the action of the action mechanism, radar detection and infrared detection are opposite to a high-definition camera, so that the detection result is calibrated, and the detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of target detection technology, and in particular to a three-dimensional multi-target detection system. Background Technology

[0002] In existing technologies, lidar, which combines optical detection and ranging, first requires a laser source, i.e., a laser emits high-frequency laser pulses onto the surface of the object being measured; secondly, it requires a receiving system, which receives the laser pulses reflected from the object's surface and processes the echoes. This system typically consists of a telescope and various photoelectric detectors. By measuring the time it takes for the laser to travel from emission to reception and combining this with the speed of light, the distance between the object and the detector can be calculated. Lidar can be classified into spaceborne, airborne, and ground-based lidar according to its mounting platform. Ground-based lidar includes tripods, vehicle-mounted, backpack-mounted, handheld, and shipborne platforms. Its advantages are comprehensive data acquisition and flexible methods. Using lidar in conjunction with a support frame to form a ground-based lidar for detecting targets in three-dimensional space is currently a commonly used target detection method.

[0003] LiDAR offers numerous advantages for target detection. Compared to passive optical remote sensing, it actively emits laser pulses, allowing it to operate at night. Furthermore, it provides direct and rapid acquisition of 3D information. High-frequency laser pulses possess penetrability, allowing them to penetrate forest canopies and reach the understory, providing information on forest topography. This is useful for forestry surveys and dense forest archaeology. LiDAR is widely applied in various projects, such as basic surveying, forestry investigations, autonomous driving, indoor modeling, digital cities, power line inspection, traffic route selection, and cultural heritage protection. However, despite these advantages, the pulses emitted by LiDAR systems attenuate drastically in environments like heavy rain, dense fog, and heavy smoke, leading to decreased data quality or data loss. Additionally, laser point clouds are discretely distributed, and current systems are primarily single-wavelength LiDAR, which is slightly inferior to traditional passive optical imagery in acquiring spectral and texture information. In other words, existing ground-based target detection systems cannot meet the demand for accurate detection of multiple targets in complex environments.

[0004] Chinese utility model patent application number 202122376096.X discloses a radar and optoelectronic combined target detection device, which includes an optical monitor mounting frame. The mounting frame has a main cable channel and monitor mounting cavities located on both sides of the main cable channel. The monitor mounting cavities are arranged in two layers; each layer has multiple monitor mounting cavities evenly distributed along the circumference, with the upper and lower layers staggered. Each monitor mounting cavity contains an optical monitor. A small ground surveillance radar is connected to the upper part of the optical monitor mounting frame, and the small ground surveillance radar and the optical monitors are connected to a signal processor via control cables. However, this radar and optoelectronic combined target detection device has a relatively limited application scenario, cannot simultaneously detect multiple target information, and cannot calibrate the detection results using multiple detection methods. Its detection accuracy is generally low, and its detection mode is relatively simple. Utility Model Content

[0005] The purpose of this invention is to provide a three-dimensional multi-target detection system.

[0006] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0007] A three-dimensional spatial multi-target detection system includes a base installed on the ground, an action mechanism for forming a three-dimensional motion structure, a detection mechanism for forming a multi-target detection module, and a calibration mechanism for calibrating the detection results. The action mechanism is arranged at the upper end of the base, the detection mechanism is assembled at the end of the action mechanism, and the calibration mechanism is arranged on the upper part of the action mechanism corresponding to the detection mechanism.

[0008] The actuation mechanism includes an actuation turntable, a lifting component, a lateral movement component, and an angle adjustment component. The actuation turntable is located at the upper end of the base and is fixedly connected to the base. The output end of the actuation turntable faces upward. The lifting component is located at the output end of the actuation turntable. The lateral movement component is mounted on one side of the lifting component. The angle adjustment component is located at one end of the lateral movement component.

[0009] The lifting assembly includes a lifting column, a lifting motor, lifting rails, lifting sliders, and a lifting base. The lifting column is located at the output end of the actuation turntable and is fixedly connected to the actuation turntable. The lifting motor is mounted on the lower side of the lifting column. There are two sets of lifting rails, which are arranged side-by-side and spaced apart on one side of the lifting column and are fixedly connected to the lifting column. There are two sets of lifting sliders, each set consisting of two sliders arranged side-by-side and spaced apart. The two sets of lifting sliders are respectively located on the side of the two sets of lifting rails away from the lifting column and are slidably connected to the corresponding lifting rails. The lifting base is located on the side of the two sets of lifting sliders away from the lifting rails and is fixedly connected to the lifting sliders. The lifting base is connected to the lifting motor via a transmission structure.

[0010] The transmission structure includes a transmission reducer, a transmission sprocket, and a transmission chain. The transmission reducer is located on the lower side of the lifting support column corresponding to the lifting motor and is fixedly connected to the lifting support column. The input end of the transmission reducer is connected to the output end of the lifting motor. The lifting motor is fixedly mounted on the lower part of the lifting support column through the transmission reducer. There are two sets of transmission sprockets, which are arranged side by side and spaced apart on the side of the lifting support column away from the lifting slide rail and are rotatably connected to the lifting support column. The lower transmission sprocket is connected to the output end of the transmission reducer. The transmission chain is arranged around the outside of the two sets of transmission sprockets and is connected to the two sets of transmission sprockets. The lifting base is fixedly connected to the transmission chain through a connecting block.

[0011] The lateral movement assembly includes a lateral movement slider, a lateral movement rail, a lateral movement electric cylinder, and a lateral movement support rod. There are two sets of lateral movement sliders, which are arranged side by side at intervals on the side of the lifting base away from the lifting slider and are fixedly connected to the lifting base. The lateral movement rail is located on the side of the lateral movement slider away from the lifting base and is slidably connected to the lateral movement slider. The lateral movement electric cylinder is located at one end of the lateral movement rail and is fixedly connected to the lateral movement rail. The lateral movement support rod is located on the side of the lateral movement rail away from the lateral movement slider and is fixedly connected to the lateral movement rail.

[0012] The angle adjustment assembly includes an angle adjustment base, an angle adjustment servo, an angle adjustment bracket, and a limiting pin. The angle adjustment base is located at one end of the lateral support rod and is fixedly connected to the lateral support rod. The angle adjustment servo is located on one side of the angle adjustment base and is fixedly connected to the angle adjustment base. The output end of the angle adjustment servo passes through the angle adjustment base. The angle adjustment base has an arc-shaped limiting groove corresponding to the angle adjustment servo, and the arc-shaped limiting groove passes through the angle adjustment base. The angle adjustment bracket is located on the side of the angle adjustment base away from the lateral support rod and is fixedly connected to the output end of the angle adjustment servo. The limiting pin is located on the side of the angle adjustment bracket close to the angle adjustment base and is fixedly connected to the angle adjustment bracket. The limiting pin is located in the arc-shaped limiting groove and passes through the arc-shaped limiting groove.

[0013] The detection mechanism includes an infrared detector and a radar detector. The infrared detector is rotatably mounted on the upper end of the lifting support column, and the radar detector is located on the side of the angle adjustment bracket away from the angle adjustment base and is fixedly connected to the angle adjustment bracket.

[0014] It also includes a detection turntable, which is disposed at the upper end of the lifting support and fixedly connected to the lifting support. The output end of the detection turntable is arranged facing upward. The infrared detector is disposed at the output end of the detection turntable and fixedly connected to the output end of the detection turntable. The infrared detector is rotatably mounted on the upper end of the lifting support through the detection turntable.

[0015] The calibration mechanism includes a calibration base and a high-definition camera. The calibration base is located on the upper side of the lifting column and is fixedly connected to the lifting column. The high-definition camera is located in the middle of the calibration base and is embedded in the calibration base.

[0016] It also includes an electronic control unit, which is located at the lower part of the lifting column and is fixedly connected to the lifting column. The electronic control unit is electrically connected to the action turntable, lifting motor, lateral movement cylinder, angle adjustment servo, infrared detector, radar detector, detection turntable and high-definition camera.

[0017] The beneficial effects of this utility model are:

[0018] It is equipped with an action mechanism to meet the three-dimensional movement requirements of the detection mechanism and to achieve cruise operation. It is equipped with a detection mechanism and a calibration mechanism to cooperate with each other. Under the action of the action mechanism, it can detect multiple target information in three-dimensional space. By comparing the detection results with radar detection, infrared detection and high-definition camera, the detection results are calibrated to improve the accuracy of detection. 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 action mechanism and the base of this utility model.

[0021] Figure 3 This is a schematic diagram of the cooperation between the transmission structure and the lifting component of this utility model;

[0022] Figure 4 This is a cross-sectional view of the cooperation between the transverse sliding rail and the transverse sliding slider of this utility model;

[0023] Figure 5 This is a schematic diagram of the angle adjustment component structure of this utility model;

[0024] Figure 6 This is the electrical connection diagram of this utility model.

[0025] In the diagram: 1. Base; 2. Motion turntable; 3. Lifting support column; 4. Lifting motor; 5. Lifting slide rail; 6. Lifting slider; 7. Lifting base; 8. Transmission reducer; 9. Transmission sprocket; 10. Transmission chain; 11. Lateral slider; 12. Lateral slide rail; 13. Lateral electric cylinder; 14. Lateral support rod; 15. Angle adjustment base; 16. Angle adjustment servo; 17. Angle adjustment bracket; 18. Limit pin; 19. Infrared detector; 20. Radar detector; 21. Detection turntable; 22. Calibration base; 23. High-definition camera; 24. Electrical control unit. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] A three-dimensional multi-target detection system includes a base 1 mounted on the ground, an action mechanism for forming a three-dimensional motion structure, a detection mechanism for forming a multi-target detection module, and a calibration mechanism for calibrating the detection results. The action mechanism is located at the upper end of the base 1, the detection mechanism is mounted at the end of the action mechanism, and the calibration mechanism is positioned above the action mechanism corresponding to the detection mechanism. A schematic diagram of the overall structure of this invention is shown below. Figure 1 As shown.

[0028] The actuation mechanism includes an actuation turntable 2, a lifting component, a lateral movement component, and an angle adjustment component. The actuation turntable 2 is located on the upper end of the base 1 and is fixedly connected to the base 1. The output end of the actuation turntable 2 faces upward. The lifting component is located at the output end of the actuation turntable 2. The lateral movement component is mounted on one side of the lifting component. The angle adjustment component is located at one end of the lateral movement component. The actuation mechanism, through the cooperation of the actuation turntable 2, the lifting component, the lateral movement component, and the angle adjustment component, forms a three-dimensional motion structure to meet the three-dimensional detection requirements of the detection system. The actuation turntable 2 provides mounting support for the lifting component and can drive the lifting component to rotate. The lifting component provides mounting support for the lateral movement component and can drive the lateral movement component to perform lifting and lowering movements. Simultaneously, it can drive the lateral movement component to rotate under the action of the actuation turntable 2. The lateral movement component provides mounting support for the angle adjustment component and can drive the angle adjustment component to perform lateral movement movements. The angle adjustment component is used to adjust the installation angle of the radar detector 20, thereby adjusting the detection range of the radar detector 20. A schematic diagram of the actuation mechanism and base 1 is shown below. Figure 2 As shown.

[0029] The lifting assembly includes a lifting column 3, a lifting motor 4, lifting slide rails 5, lifting sliders 6, and a lifting base 7. The lifting column 3 is located at the output end of the rotating disk 2 and is fixedly connected to the rotating disk 2. The lifting motor 4 is mounted on the lower side of the lifting column 3. There are two sets of lifting slide rails 5, which are arranged side by side with intervals on one side of the lifting column 3 and are fixedly connected to the lifting column 3. There are two sets of lifting sliders 6, each set consisting of two sliders arranged side by side with intervals. The two sets of lifting sliders 6 are respectively located on the side of the two sets of lifting slide rails 5 away from the lifting column 3 and are slidably connected to the corresponding lifting slide rails 5. The lifting base 7 is located on the side of the two sets of lifting sliders 6 away from the lifting slide rails 5 and is fixedly connected to the lifting sliders 6. The lifting base 7 is connected to the lifting sliders 6 via a transmission mechanism. The moving structure is connected to the lifting motor 4 via a transmission. The lifting assembly cooperates with the lifting column 3, lifting motor 4, lifting slide rail 5, lifting slider 6, and lifting base 7 to provide installation support for the lateral moving assembly and drive the lateral moving assembly to perform lifting and lowering actions. The lifting column 3 is used to provide installation support for the lifting motor 4 and lifting slide rail 5. The lifting motor 4 is used to drive the lifting base 7 to perform lifting and lowering actions through the transmission structure. The lifting slide rail 5 is used to provide sliding support for the lifting slider 6. The lifting slider 6 is used to provide installation support for the lifting base 7 and to guide the lifting base 7 to move up and down along the lifting slide rail 5. The lifting base 7 is used to provide installation support for the lateral moving assembly and, under the action of the lifting motor 4, drives the lateral moving assembly to perform lifting and lowering actions.

[0030] The transmission structure includes a transmission reducer 8, a transmission sprocket 9, and a transmission chain 10. The transmission reducer 8 is located on the lower side of the lifting support column 3, corresponding to the lifting motor 4, and is fixedly connected to the lifting support column 3. The input end of the transmission reducer 8 is connected to the output end of the lifting motor 4. The lifting motor 4 is fixedly mounted on the lower part of the lifting support column 3 via the transmission reducer 8. There are two sets of transmission sprockets 9, which are arranged side by side and spaced apart on the side of the lifting support column 3 away from the lifting slide rail 5 and are rotatably connected to the lifting support column 3. The lower transmission sprocket 9 is connected to the output end of the transmission reducer 8. The transmission chain 10 is arranged around the lower part of the lifting support column 3. The outer sides of the two sets of transmission sprockets 9 are connected to the two sets of transmission sprockets 9. The lifting base 7 is fixedly connected to the transmission chain 10 through a connecting block. The transmission structure, through the cooperation of the transmission reducer 8, the transmission sprockets 9, and the transmission chain 10, realizes the transmission connection between the lifting base 7 and the lifting motor 4. Among them, the transmission reducer 8 is used to adjust the output speed of the lifting motor 4, the transmission sprockets 9 are used to rotate under the drive of the transmission reducer 8, and the transmission chain 10 is used to connect to the lifting base 7 and drive the lifting base 7 to perform lifting and lowering actions under the drive of the transmission sprockets 9. The schematic diagram of the cooperation between the transmission structure and the lifting component of this utility model is shown below. Figure 3 As shown.

[0031] The lateral movement assembly includes a lateral movement slider 11, a lateral movement rail 12, a lateral movement electric cylinder 13, and a lateral movement support rod 14. Two sets of lateral movement sliders 11 are arranged side-by-side at intervals on the side of the lifting base 7 away from the lifting slider 6 and are fixedly connected to the lifting base 7. The lateral movement rail 12 is located on the side of the lateral movement slider 11 away from the lifting base 7 and is slidably connected to the lateral movement slider 11. The lateral movement electric cylinder 13 is located at one end of the lateral movement rail 12 and is fixedly connected to the lateral movement rail 12. The lateral movement support rod 14 is located on the side of the lateral movement rail 12 away from the lateral movement slider 11 and is fixedly connected to the lateral movement rail 12. The lateral movement assembly, through the cooperation of the lateral movement slider 11, the lateral movement rail 12, the lateral movement electric cylinder 13, and the lateral movement support rod 14, is used for adjustment. The angle assembly provides mounting support and can drive the angle adjustment assembly to move laterally. The lateral slider 11 serves as a mounting structure on the lifting base 7, thus slidingly engaging with the lateral slide rail 12. The lateral slide rail 12 provides mounting support for the lateral support rod 14 and slides relative to the lateral slider 11 under the action of the lateral electric cylinder 13. The lateral electric cylinder 13 controls the relative sliding between the lateral slide rail 12 and the lateral slider 11, thereby realizing the lateral movement of the lateral support rod 14. The lateral support rod 14 provides mounting support for the angle adjustment assembly and moves laterally under the drive of the lateral slide rail 12, thus driving the angle adjustment assembly to move laterally. A cross-sectional view of the lateral slide rail 12 and the lateral slider 11 in this invention is shown below. Figure 4 As shown.

[0032] The angle adjustment assembly includes an angle adjustment base 15, an angle adjustment servo 16, an angle adjustment bracket 17, and a limiting pin 18. The angle adjustment base 15 is located at one end of the transverse support rod 14 and is fixedly connected to the transverse support rod 14. The angle adjustment servo 16 is located on one side of the angle adjustment base 15 and is fixedly connected to the angle adjustment base 15. The output end of the angle adjustment servo 16 passes through the angle adjustment base 15. The angle adjustment base 15 has an arc-shaped limiting groove corresponding to the angle adjustment servo 16, and the arc-shaped limiting groove passes through the angle adjustment base 15. The angle adjustment bracket 17 is located on the side of the angle adjustment base 15 away from the transverse support rod 14 and is fixedly connected to the output end of the angle adjustment servo 16. The limiting pin 18 is located on the side of the angle adjustment bracket 17 close to the angle adjustment base 15 and is fixedly connected to the angle adjustment bracket 17. The limiting pin 18 is located in the arc-shaped limiting groove and passes through the arc-shaped limiting groove. The angle adjustment assembly is connected to the angle adjustment base 15, the angle adjustment servo 16, and the angle adjustment bracket 17. The bracket 17 and the limiting pin 18 cooperate to provide mounting support for the radar detector 20 and adjust its mounting angle, thereby adjusting the detection range of the radar detector 20. The angle-adjusting base 15 serves as the mounting structure at the end of the transverse support rod 14, providing mounting support for the angle-adjusting servo 16. The angle-adjusting servo 16 provides mounting support for the angle-adjusting bracket 17 and adjusts the angle of the angle-adjusting bracket 17 by rotating its output end. The angle-adjusting bracket 17 provides mounting support for the radar detector 20 and adjusts the mounting angle of the radar detector 20 under the action of the angle-adjusting servo 16. The limiting pin 18 cooperates with the arc-shaped limiting groove to serve as a limiting structure between the angle-adjusting bracket 17 and the angle-adjusting base 15, thereby achieving relative limiting between the angle-adjusting bracket 17 and the angle-adjusting base 15. A schematic diagram of the angle-adjusting component structure of this utility model is shown below. Figure 5 As shown.

[0033] The detection mechanism includes an infrared detector 19 and a radar detector 20. The infrared detector 19 is rotatably mounted on the upper end of the lifting support column 3. The radar detector 20 is located on the side of the angle adjustment bracket 17 away from the angle adjustment base 15 and is fixedly connected to the angle adjustment bracket 17. The detection mechanism can detect multiple target information simultaneously through the cooperation of the infrared detector 19 and the radar detector 20. The infrared detector 19 is used to perform infrared detection on targets within the detection range, and the radar detector 20 is used to perform radar detection on targets within the detection range. Furthermore, the infrared detector 19 and the radar detector 20 can simultaneously detect multiple targets in different directions.

[0034] It also includes a detection turntable 21, which is set at the upper end of the lifting support column 3 and fixedly connected to the lifting support column 3. The output end of the detection turntable 21 is set upward. The infrared detector 19 is set at the output end of the detection turntable 21 and fixedly connected to the output end of the detection turntable 21. The infrared detector 19 is mounted on the upper end of the lifting support column 3 by rotating the detection turntable 21. The detection turntable 21 is used as a mounting structure on the lifting support column 3, thereby providing mounting support for the infrared detector 19 and driving the infrared detector 19 to rotate to perform infrared detection in different directions.

[0035] The calibration mechanism includes a calibration base 22 and a high-definition camera 23. The calibration base 22 is located on the upper side of the lifting column 3 and is fixedly connected to the lifting column 3. The high-definition camera 23 is located in the middle of the calibration base 22 and is embedded in the calibration base 22. The calibration mechanism, through the cooperation of the calibration base 22 and the high-definition camera 23, constitutes the calibration part of the detection system to calibrate the targets detected by the infrared detector 19 and the radar detector 20. The calibration base 22 is used to provide mounting support for the high-definition camera 23, and the high-definition camera 23 is used to calibrate the targets detected by the infrared detector 19 and the radar detector 20.

[0036] It also includes an electronic control unit 24, which is located at the lower part of the lifting support column 3 and is fixedly connected to the lifting support column 3. The electronic control unit 24 is electrically connected to the actuation turntable 2, the lifting motor 4, the lateral movement cylinder 13, the angle adjustment servo motor 16, the infrared detector 19, the radar detector 20, the detection turntable 21, and the high-definition camera 23. The electrical connection diagram of this utility model is shown below. Figure 6 As shown.

[0037] In this technical solution, each action structure can be replaced by an existing action mechanism with the same function, and its transmission principle is the same as that in the existing technology, so it will not be described in detail here.

[0038] The electronic control unit 24 can set the action mechanism to perform periodic cruise motion, thereby realizing the cruise operation of the detection system. Its cruise principle is the same as that of the existing detection system cruise principle, so it will not be described in detail here.

[0039] Working principle:

[0040] In use, the detection system is installed at the designated location via the base 1. Once the device is started, the lifting component, the horizontal movement component, and the angle adjustment component drive the infrared detector 19 and the radar detector 20 to perform cruise detection of the surrounding environment along a pre-set path. During the detection process, multiple target information entering the detection range can be detected simultaneously. After the target information is detected, the target is calibrated via the high-definition camera 23 to improve the accuracy of the detection.

[0041] The beneficial effects of this utility model are that it is equipped with an action mechanism that can meet the three-dimensional motion requirements of the detection mechanism and can achieve cruise-type operation. It is equipped with a detection mechanism and a calibration mechanism to cooperate, and can detect multiple target information in three-dimensional space under the action of the action mechanism. By comparing the detection results with radar detection, infrared detection and high-definition camera, the detection results are calibrated to improve the accuracy of detection.

[0042] The above description provides a detailed account of one embodiment of the present invention, but this is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A three-dimensional space multi-target detection system comprising a base (1) installed on the ground, characterized in that, It also includes a moving mechanism for constituting a three-dimensional motion structure, a detection mechanism for constituting a multi-target detection module, and a calibration mechanism for calibrating the detection results.

2. A three-dimensional spatial multi-target detection system as claimed in claim 1, characterized in that The moving mechanism includes a moving turntable (2), a lifting assembly, a horizontal moving assembly, and an angle adjusting assembly. The moving turntable (2) is arranged at the upper end of the base (1) and fixedly connected with the base (1). The output end of the moving turntable (2) is arranged upward. The lifting assembly is arranged at the output end of the moving turntable (2). The horizontal moving assembly is assembled on one side of the lifting assembly. The angle adjusting assembly is arranged at one end of the horizontal moving assembly.

3. A three-dimensional spatial multi-target detection system as claimed in claim 2, characterized in that The lifting assembly includes a lifting column (3), a lifting motor (4), two lifting slide rails (5), two lifting slide blocks (6), and a lifting base (7). The lifting column (3) is arranged at the output end of the moving turntable (2) and fixedly connected with the moving turntable (2). The lifting motor (4) is assembled on one side of the lower part of the lifting column (3). The two lifting slide rails (5) are arranged side by side and spaced apart on one side of the lifting column (3) and fixedly connected with the lifting column (3). Each of the two lifting slide blocks (6) is composed of two slide blocks arranged side by side and spaced apart. The two lifting slide blocks (6) are respectively arranged on one side away from the lifting column (3) of the two lifting slide rails (5) and slidably connected with the corresponding lifting slide rails (5). The lifting base (7) is arranged on one side away from the lifting slide rails (5) of the two lifting slide blocks (6) and fixedly connected with the lifting slide blocks (6). The lifting base (7) is drivingly connected with the lifting motor (4) through a transmission structure.

4. A three-dimensional spatial multi-target detection system as claimed in claim 3, characterized in that The transmission structure includes a transmission speed reducer (8), two transmission sprockets (9), and a transmission chain (10). The transmission speed reducer (8) is arranged on one side of the lower part of the lifting column (3) corresponding to the lifting motor (4) and fixedly connected with the lifting column (3). The input end of the transmission speed reducer (8) is drivingly connected with the output end of the lifting motor (4). The lifting motor (4) is fixedly assembled on the lower part of the lifting column (3) through the transmission speed reducer (8). The two transmission sprockets (9) are arranged side by side and spaced apart on one side away from the lifting slide rails (5) of the lifting column (3) and rotatably connected with the lifting column (3). The lower transmission sprocket (9) is drivingly connected with the output end of the transmission speed reducer (8). The transmission chain (10) is arranged around the outside of the two transmission sprockets (9) and drivingly connected with the two transmission sprockets (9). The lifting base (7) is fixedly connected with the transmission chain (10) through a connecting block.

5. A three-dimensional spatial multi-target detection system as claimed in claim 4, characterized in that, The horizontal moving assembly comprises horizontal moving sliders (11), horizontal moving sliding rails (12), horizontal moving electric cylinders (13) and horizontal moving supporting rods (14), the two groups of horizontal moving sliders (11) are arranged side by side and spaced apart on the side of the lifting base (7) away from the lifting sliders (6) and are fixedly connected with the lifting base (7), the horizontal moving sliding rails (12) are arranged on the side of the horizontal moving sliders (11) away from the lifting base (7) and are slidingly connected with the horizontal moving sliders (11), the horizontal moving electric cylinders (13) are arranged at one end of the horizontal moving sliding rails (12) and are fixedly connected with the horizontal moving sliding rails (12), and the horizontal moving supporting rods (14) are arranged on the side of the horizontal moving sliding rails (12) away from the horizontal moving sliders (11) and are fixedly connected with the horizontal moving sliding rails (12).

6. A three-dimensional spatial multi-target detection system as claimed in claim 5, characterized in that The angle adjusting assembly comprises an angle adjusting base (15), an angle adjusting steering engine (16), an angle adjusting support (17) and a limiting pin (18), the angle adjusting base (15) is arranged at one end of the horizontal moving supporting rod (14) and is fixedly connected with the horizontal moving supporting rod (14), the angle adjusting steering engine (16) is arranged on one side of the angle adjusting base (15) and is fixedly connected with the angle adjusting base (15), the output end of the angle adjusting steering engine (16) penetrates the angle adjusting base (15), the angle adjusting base (15) is provided with an arc-shaped limiting groove corresponding to the angle adjusting steering engine (16), the arc-shaped limiting groove penetrates the angle adjusting base (15), the angle adjusting support (17) is arranged on the side of the angle adjusting base (15) away from the horizontal moving supporting rod (14) and is fixedly connected with the output end of the angle adjusting steering engine (16), and the limiting pin (18) is arranged on the side of the angle adjusting support (17) close to the angle adjusting base (15) and is fixedly connected with the angle adjusting support (17), the limiting pin (18) is located in the arc-shaped limiting groove and penetrates the arc-shaped limiting groove.

7. A three-dimensional spatial multi-target detection system as claimed in claim 6, characterized in that The detection mechanism comprises an infrared detector (19) and a radar detector (20), the infrared detector (19) is rotatably arranged at the upper end of the lifting supporting column (3), and the radar detector (20) is arranged on the side of the angle adjusting support (17) away from the angle adjusting base (15) and is fixedly connected with the angle adjusting support (17).

8. A three-dimensional spatial multi-target detection system as claimed in claim 7, characterized in that The detection turntable (21) is arranged at the upper end of the lifting supporting column (3) and is fixedly connected with the lifting supporting column (3), the output end of the detection turntable (21) is arranged upward, the infrared detector (19) is arranged on the output end of the detection turntable (21) and is fixedly connected with the output end of the detection turntable (21), and the infrared detector (19) is rotatably arranged at the upper end of the lifting supporting column (3) through the detection turntable (21).

9. A three-dimensional spatial multi-target detection system as claimed in claim 8, characterized in that The calibration mechanism comprises a calibration base (22) and a high-definition camera (23), the calibration base (22) is arranged on one side of the upper part of the lifting supporting column (3) and is fixedly connected with the lifting supporting column (3), and the high-definition camera (23) is arranged in the middle of the calibration base (22) and is embeddedly connected with the calibration base (22).

10. A three-dimensional spatial multi-target detection system as claimed in claim 9, characterized in that Also included is an electric control unit (24) arranged at the lower part of the lifting column (3) and fixedly connected with the lifting column (3), which is electrically connected with the action turntable (2), the lifting motor (4), the transverse movement electric cylinder (13), the angle adjusting servo motor (16), the infrared detector (19), the radar detector (20), the detection turntable (21) and the high-definition camera (23).

Images