Radar pedestrian flow acquisition instrument

Abstract

The utility model relates to the technical field of radar people flow acquisition instruments, in particular to a radar people flow acquisition instrument, which comprises a main body, a visual component is arranged in the main body, and a detection component is arranged on the side surface of the main body; according to the utility model, the camera, the single-line laser radar and the millimeter-wave radar are adopted for data acquisition, the accuracy and robustness of passenger flow monitoring are improved through a data fusion technology, and target tracking is realized by using depth information of the laser radar and the millimeter-wave radar and combining camera images. The influence of shielding and other factors on passenger flow monitoring is effectively reduced, data fusion is achieved by integrating the camera, the single-line laser radar and the millimeter-wave radar, the camera can provide rich visual information, the laser radar provides accurate depth data, the millimeter-wave radar can stably work in severe weather, and after data fusion of the camera, the laser radar and the millimeter-wave radar, the passenger flow monitoring accuracy is improved. Even in a complex environment, mutual complementation can be realized, and the accuracy and reliability of monitoring data are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of radar pedestrian flow collectors, in particular to a radar pedestrian flow collector. Background Art

[0002] With improved living standards and increased leisure time, tourism has become a vital industry driving local economic development. As the vehicle for tourism, scenic spots, through monitoring and managing visitor flow, are crucial for enhancing the visitor experience and ensuring travel safety. Consequently, passenger flow monitoring products have emerged, aiming to help scenic spots achieve scientific capacity management, enhance the visitor experience, and safeguard cultural heritage through real-time monitoring and analysis of visitor flow.

[0003] In the existing technology, common passenger flow monitoring systems mainly use a single type of sensor for data collection, using only cameras, lidar or millimeter wave radar. Currently, in this solution, the camera is responsible for collecting image data, which is then transmitted to the data processing unit for image analysis and headcount, and finally the passenger flow analysis system outputs the results. This solution mainly relies on image processing technology and is easily affected by factors such as light and crowd obstruction. The data collected by a single sensor is easily affected by environmental factors such as light, rain and fog, resulting in reduced data accuracy. In scenes with dense crowds and severe obstruction, sensors such as cameras cannot accurately obtain all passenger flow information. Different types of sensors often work independently, and the degree of data fusion is low, making it difficult to achieve high-precision passenger flow monitoring. Therefore, a radar passenger flow collector is needed to improve the above problems. Utility Model Content

[0004] In order to solve the problem in the existing technology, common passenger flow monitoring systems mainly use a single type of sensor for data collection, using only cameras, lidar or millimeter wave radar. At present, in this solution, the camera is responsible for collecting image data, which is then transmitted to the data processing unit for image analysis and headcount, and finally the passenger flow analysis system outputs the results. This solution mainly relies on image processing technology and is easily affected by factors such as light and crowd obstruction. The data collected by a single sensor is easily affected by environmental factors such as light, rain and fog, resulting in reduced data accuracy. In scenes with dense crowds and severe obstruction, sensors such as cameras cannot accurately obtain all passenger flow information. Different types of sensors often work independently, and the degree of data fusion is low, making it difficult to achieve high-precision passenger flow monitoring. The purpose of this utility model is to provide a radar passenger flow collector to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A radar pedestrian flow collector comprises a main body, a visual component is arranged inside the main body, and a detection component is arranged on the side of the main body;

[0007] The main body includes an upper shell, and a lower shell is arranged inside the upper shell;

[0008] The visual component includes an inlet and outlet cover plate, a laser radar mounting plate is provided on the top of the inlet and outlet cover plate, a camera mounting plate is provided on the side of the laser radar mounting plate, a camera module is installed on the top of the camera mounting plate, and a laser radar module is installed on the side of the laser radar mounting plate;

[0009] The detection component includes a millimeter wave radar module, and a millimeter wave radar mounting bracket is provided on the side of the millimeter wave radar module.

[0010] As a preferred solution of the present invention, a camera lens and a laser radar scanning window opening are provided inside the lower shell, and the camera module is fixed on a camera mounting plate.

[0011] As a preferred solution of the present invention, the camera mounting plate is connected to the laser radar mounting plate, and a strip-shaped fixing hole is opened inside the camera module.

[0012] As a preferred solution of the present invention, the millimeter-wave radar module is fixed on the millimeter-wave radar mounting bracket, and a reversible fastening method is adopted between the millimeter-wave radar module and the millimeter-wave radar mounting bracket.

[0013] As a preferred solution of the present invention, the millimeter wave radar mounting bracket is fixed on the lower shell, the laser radar module is fixed on the laser radar mounting fixing plate, and the laser radar mounting fixing plate is fixed on the lower shell by means of a slot.

[0014] As a preferred solution of the present invention, the inlet and outlet wire cover is fixed on the lower shell, and the inlet and outlet wire cover is reserved with inlet and outlet wire holes.

[0015] As a preferred solution of the present invention, a mainboard mounting column is provided in the upper shell, and a wire outlet hole is reserved on the side of the upper shell.

[0016] As a preferred solution of the present invention, the upper shell and the lower shell are fixed by bolts through fixing screw holes provided on the side.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this utility model, three types of sensors, namely cameras, single-line laser radars and millimeter-wave radars, are used for data collection. The accuracy and robustness of passenger flow monitoring are improved through data fusion technology. The data processing unit in this patent can automatically adjust the sensor parameters according to environmental changes, and can automatically adjust the sensor's working parameters according to the real-time monitored environmental changes to adapt to the passenger flow monitoring needs in different scenarios.

[0019] 2. In the present invention, by utilizing the depth information of lidar and millimeter-wave radar, combined with camera images, target tracking is achieved, effectively reducing the impact of factors such as occlusion on passenger flow monitoring. By integrating cameras, single-line lidar and millimeter-wave radar, data fusion is achieved. The camera can provide rich visual information, the lidar provides accurate depth data, and the millimeter-wave radar can work stably in bad weather. After the data of the three are fused, they can complement each other even in complex environments to ensure the accuracy and reliability of the monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the visual component structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the detection component structure of the present utility model.

[0024] In the figure: 1. Main body; 101. Upper shell; 102. Lower shell; 2. Vision component; 201. Inlet and outlet wire cover; 202. LiDAR mounting plate; 203. Camera mounting plate; 204. Camera module; 205. LiDAR module; 3. Detection component; 301. Millimeter-wave radar module; 302. Millimeter-wave radar mounting bracket. DETAILED DESCRIPTION

[0025] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Example: See Figures 1-4 The radar pedestrian flow collector shown includes a main body 1, a visual component 2 is provided inside the main body 1, and a detection component 3 is provided on the side of the main body 1;

[0027] In this embodiment, reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the main body 1 includes an upper shell 101, a lower shell 102 is arranged inside the upper shell 101, the visual component 2 includes an input and output line cover plate 201, a laser radar mounting plate 202 is arranged on the top of the input and output line cover plate 201, a camera mounting plate 203 is arranged on the side of the laser radar mounting plate 202, a camera module 204 is installed on the top of the camera mounting plate 203, and a laser radar module 205 is installed on the side of the laser radar mounting plate 202. The detection component 3 includes a millimeter wave radar module 301, and a millimeter wave radar mounting bracket 302 is arranged on the side of the millimeter wave radar module 301. Three types of sensors, namely cameras, single-line laser radars and millimeter wave radars, are used for data collection. The accuracy and robustness of passenger flow monitoring are improved through data fusion technology. The data processing unit in this patent can automatically adjust the sensor parameters according to environmental changes, and can automatically adjust the working parameters of the sensor according to the real-time monitored environmental changes to adapt to the passenger flow monitoring needs in different scenarios.

[0028] In this embodiment, reference Figure 1 、 Figure 2 and Figure 3 As shown, the interior of the lower shell 102 is provided with a camera lens and a laser radar scanning window opening, the camera module 204 is fixed on the camera mounting fixing plate 203, the camera mounting fixing plate 203 is connected to the laser radar mounting fixing plate 202, and a strip fixing hole is provided inside the camera module 204. The millimeter wave radar module 301 is fixed on the millimeter wave radar mounting bracket 302, and the millimeter wave radar module 301 and the millimeter wave radar mounting bracket 302 are fastened in a reversible manner. The millimeter wave radar mounting bracket 302 is fixed on the lower shell 102, and the laser radar module 205 is fixed on the laser radar mounting fixing plate 202, and the laser radar mounting fixing plate 202 is fixed in a slot manner. On the lower shell 102, the input and output line cover plate 201 is fixed on the lower shell 102, and the input and output line cover plate 201 is reserved with input and output line holes. A mainboard mounting column is set in the upper shell 101, and a wire outlet hole is reserved on the side of the upper shell 101. The upper shell 101 and the lower shell 102 are bolted and fixed through the fixing screw holes set on the side. The depth information of the lidar and millimeter-wave radar is combined with the camera image to achieve target tracking, effectively reducing the impact of factors such as occlusion on passenger flow monitoring. By integrating the camera, single-line lidar and millimeter-wave radar, data fusion is achieved. The camera can provide rich visual information, the lidar provides accurate depth data, and the millimeter-wave radar can work stably in bad weather.

[0029] In this solution, a radar pedestrian flow collector, based on multi-sensor data fusion technology, integrates different types of sensors to achieve comprehensive monitoring of passenger flow. Each sensor has its unique advantages and limitations. By fusing this data, they can complement each other and improve overall monitoring performance. The camera provides high-resolution visual images suitable for identifying the appearance and behavior of individuals. The single-line lidar provides precise depth information, which helps to locate and track individuals in three-dimensional space. The millimeter-wave radar can operate stably in adverse weather and low-light conditions, ensuring data continuity and reliability. The depth information of the single-line lidar and millimeter-wave radar, combined with the visual image of the camera, can achieve three-dimensional scene reconstruction and target tracking.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radar pedestrian flow collector, comprising a main body (1), characterized in that: A visual component (2) is provided inside the main body (1), and a detection component (3) is provided on the side of the main body (1); The main body (1) comprises an upper shell (101), and a lower shell (102) is arranged inside the upper shell (101); The visual component (2) comprises an inlet and outlet cable cover plate (201), a laser radar mounting plate (202) is provided on the top of the inlet and outlet cable cover plate (201), a camera mounting plate (203) is provided on the side of the laser radar mounting plate (202), a camera module (204) is installed on the top of the camera mounting plate (203), and a laser radar module (205) is installed on the side of the laser radar mounting plate (202); The detection assembly (3) comprises a millimeter wave radar module (301), and a millimeter wave radar mounting bracket (302) is provided on the side of the millimeter wave radar module (301).

2. The radar pedestrian flow collector according to claim 1, characterized in that: A camera lens and a laser radar scanning window opening are provided inside the lower shell (102), and the camera module (204) is fixed on a camera mounting plate (203).

3. The radar pedestrian flow collector according to claim 1, characterized in that: The camera mounting fixing plate (203) is connected to the laser radar mounting fixing plate (202), and a strip-shaped fixing hole is provided inside the camera module (204).

4. The radar pedestrian flow collector according to claim 1, characterized in that: The millimeter wave radar module (301) is fixed on the millimeter wave radar mounting bracket (302), and the millimeter wave radar module (301) and the millimeter wave radar mounting bracket (302) are fastened in a reversible manner.

5. The radar pedestrian flow collector according to claim 1, characterized in that: The millimeter wave radar mounting bracket (302) is fixed on the lower housing (102), the laser radar module (205) is fixed on the laser radar mounting fixing plate (202), and the laser radar mounting fixing plate (202) is fixed on the lower housing (102) in a slot manner.

6. The radar pedestrian flow collector according to claim 1, characterized in that: The inlet and outlet wire cover plate (201) is fixed on the lower housing (102), and the inlet and outlet wire cover plate (201) is provided with inlet and outlet wire holes.

7. The radar pedestrian flow collector according to claim 1, characterized in that: A mainboard mounting column is provided in the upper shell (101), and a wire outlet hole is reserved on the side of the upper shell (101).

8. The radar pedestrian flow collector according to claim 1, characterized in that: The upper shell (101) and the lower shell (102) are connected and fixed by bolts through fixing screw holes arranged on the side.

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