Intelligent variable marking device for entrance and exit of underground road

Abstract

The utility model discloses an intelligent variable marking device for an underground road entrance and exit. The intelligent variable marking device comprises a fixed suspension, the fixed suspension is installed at the top of an underground road entrance and exit. A millimeter wave radar used for transmitting and receiving millimeter wave signals is installed in the middle of the fixed suspension through an L-shaped support. RSU edge computing equipment used for receiving and processing point cloud data of the millimeter wave radar is mounted in the L-shaped support; a sliding rail is arranged at the bottom of the fixed suspension; a plurality of marking projection lamps used for projecting traffic markings are hung on the sliding rail through an adjustable assembly. According to the utility model, through the synergistic effect of the millimeter wave radar, the RSU edge computing device and the marking projection lamp, the traffic organization scheme of the entrance and exit area is adjusted according to the real-time traffic condition, and the traffic operation efficiency is improved. The device has good applicability and practicability in an underground road scene.

Description

Technical Field

[0001] The utility model relates to the technical field of road traffic management, and particularly to an intelligent variable marking device for underground road entrances and exits. Background Art

[0002] With the improvement of the utilization rate of urban underground roads in China, the entrances and exits of underground roads have become the key to restricting the overall operation efficiency. The traffic organization plan at the entrances and exits is related to the operation safety and traffic efficiency of the main road. However, the traditional markings at the entrances and exits of underground roads are fixed and cannot be adjusted according to the real-time traffic conditions. Referring to the "Traffic Data Cleaning Method and System Based on Millimeter Wave Radar Data" with the authorized application number "CN202011057617.9", it can be known that by screening and cleaning the millimeter wave radar data, relatively high-precision traffic operation data can be obtained in real time, providing a data basis for traffic decision-making. Therefore, starting from the actual environment of underground roads, the utility model proposes a device that can adjust the traffic organization plan in the entrance and exit areas according to the real-time traffic conditions. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an intelligent variable marking device for underground road entrances and exits, which can realize the adjustment of the traffic organization plan in the entrance and exit areas according to the real-time traffic conditions through the coordinated action of millimeter wave radar, RSU edge computing device and marking projection lights, and improve the traffic operation efficiency. The device has good applicability and practicability in the underground road scenario and can provide a new tool for the field of underground road traffic management.

[0004] The utility model is realized through the following technical solutions:

[0005] An intelligent variable marking device for underground road entrances and exits includes a fixed suspension; the fixed suspension is installed at the top of the underground road entrance and exit; wherein: a millimeter wave radar for transmitting and receiving millimeter wave signals is installed in the middle of the fixed suspension through an L-shaped support; an RSU edge computing device for receiving and processing the point cloud data of the millimeter wave radar is installed inside the L-shaped support; a slide rail is arranged at the bottom of the fixed suspension; and a plurality of marking projection lights for projecting traffic markings are suspended on the slide rail through an adjustable component. The millimeter wave radar can accurately detect the vehicle position information in the entrance and exit areas, including the number of vehicles, vehicle speed, vehicle type, etc. by transmitting and receiving millimeter wave signals; the RSU edge computing device receives and processes the point cloud data of the millimeter wave radar, and analyzes the traffic conditions in the entrance and exit areas, including the congestion degree, traffic capacity, etc. through algorithms; the marking projection lights project corresponding traffic marking schemes according to the analysis results of the RSU edge computing device, and the marking projection device can project traffic markings of different colors, shapes and words to remind drivers of the traffic conditions and guide vehicle passage.

[0006] As a further improvement to the technical solution of the present utility model, the adjustable component includes a structural member, an adjustment base, and an adjustment knob; the structural member is slidably installed on the slide rail; the bottom of the structural member is connected to the adjustment base; the marking projection lamp is rotatably installed at the bottom of the adjustment base through the adjustment knob.

[0007] As a further improvement to the technical solution of the present utility model, the millimeter-wave radar is fixed on the L-shaped support by a first fixing member; the first fixing member includes four screws.

[0008] As a further improvement to the technical solution of the present utility model, the RSU edge computing device is fixed inside the L-shaped support by a second fixing member; the second fixing member includes four hexagon bolts.

[0009] As a further improvement to the technical solution of the present utility model, the fixed suspension is installed on the top of the underground road entrance and exit through a vertical metal vertical arm.

[0010] As a further improvement to the technical solution of the present utility model, the lens of the marking projection lamp is vertically oriented; the coverage range of each group of marking projection lamps is 3.5m×15m or 3.75m×6m.

[0011] As a further improvement to the technical solution of the present utility model, the traffic markings include markings of different colors, shapes, and texts.

[0012] Compared with the prior art, the present utility model provides an intelligent variable marking device for underground road entrances and exits, having the following beneficial effects:

[0013] Through the combined application of the millimeter-wave radar, the RSU edge computing device, and the marking projection lamp, the present utility model realizes the function of adjusting the traffic organization plan in the underground entrance and exit area in real time according to the traffic conditions. The present utility model can be properly installed at the suspension position above the underground road, uses the millimeter-wave radar to sense and obtain the vehicle radar reflection data in the underground road entrance and exit area, obtains the vehicle trajectory data through the RSU edge computing device, thereby analyzing and obtaining the traffic operation data in the entrance and exit area, and finally projects the traffic marking plan by the marking projection lamp. This utility model has positive significance for improving the traffic operation efficiency and safety in the underground road entrance and exit area. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a working flow chart of an intelligent variable marking device for underground road entrances and exits according to an embodiment of the present utility model;

[0015] Figure 2 is a structural schematic diagram of an intelligent variable marking device for underground road entrances and exits according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the assembly structure of the L-shaped support and the millimeter-wave radar in the embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the assembly structure of the L-shaped support and the RSU edge computing device in the embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the assembly structure of the marking projection lamp and the fixed suspension in the embodiment of the present utility model;

[0019] Figure 6 This is a schematic diagram of the assembly structure of the L-shaped support and the fixed suspension in the embodiment of the present utility model.

[0020] In the figure: 1 - millimeter-wave radar; 2 - RSU edge computing device; 3 - marking projection lamp; 4 - L-shaped support; 5 - fixed suspension; 11, 12, 13, 14 - screws; 21, 22, 23, 24 - hexagon bolts; 31 - structural member; 32 - adjustment base; 33 - adjustment knob; 41, 42 - bolts; 51 - vertical metal vertical arm; 52 - slide rail. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] In the present utility model, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific situations.

[0024] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0025] As Figures 1 to 6 shown, an intelligent variable marking device for an underground road entrance and exit includes a fixed suspension 5; the fixed suspension 5 is installed at the top of the underground road entrance and exit; wherein: a millimeter-wave radar 1 for transmitting and receiving millimeter-wave signals is installed in the middle of the fixed suspension 5 through an L-shaped support 4; an RSU edge computing device 2 for receiving and processing the point cloud data of the millimeter-wave radar 1 is installed inside the L-shaped support 4; a slide rail 52 is provided at the bottom of the fixed suspension 5; and a plurality of marking projection lights 3 for projecting traffic markings are suspended on the slide rail 52 through an adjustable component. Referring to Figure 1 , the millimeter-wave radar 1 can accurately detect the vehicle position information in the entrance and exit area by transmitting and receiving millimeter-wave signals, including the number of vehicles, vehicle speed, vehicle type, etc.; the RSU edge computing device 2 receives and processes the point cloud data of the millimeter-wave radar 1, and analyzes the traffic conditions in the entrance and exit area through algorithms, including the congestion degree, traffic capacity, etc.; the marking projection light 3 projects the corresponding traffic marking scheme according to the analysis result of the RSU edge computing device 2, and the marking projection device can project traffic markings of different colors, shapes and texts to remind the driver of the traffic conditions and guide the vehicle to pass.

[0026] It should be noted that the RSU edge computing device refers to a computing device deployed at the edge of the road for processing and analyzing a large amount of data between vehicles and the road. As a node of edge computing, the RSU conducts data transmission and processing between vehicles and cloud servers, playing a bridging role in connecting intelligent vehicles and the intelligent transportation system.

[0027] Specifically, in the solution of this embodiment, the adjustable component includes a structural member 31, an adjustment base 32, and an adjustment knob 33; the structural member 31 is slidably mounted on the slide rail 52; the bottom of the structural member 31 is connected to the adjustment base 32; the marking projection lamp 3 is rotatably mounted on the bottom of the adjustment base 32 through the adjustment knob 33. In specific implementation, according to the analysis result of the RSU edge computing device 2, the corresponding traffic marking scheme is projected onto the road surface at the entrance and exit of the underground road. The marking projection lamp 3 can adopt a high-brightness light source and projection technology to achieve a clearly visible marking projection. As Figure 5 shown, the marking projection lamp 3 is installed at the position of the slide rail 52 directly below the fixed suspension 5 through the structural member 31, and the horizontal position of the projection lamp above the road can be adjusted according to actual needs. At the same time, the angle of the projection lamp can be adjusted through the adjustment base 32 and the adjustment knob 33 to align the projection scheme with the road.

[0028] Specifically, in the solution of this embodiment, the millimeter-wave radar 1 is fixed on the L-shaped support 4 through a first fixing member; the first fixing member includes four screws. In specific implementation, as shown in the appendix Figure 3 shown, the millimeter-wave radar 1 is responsible for vehicle detection and real-time acquisition of the traffic conditions in the entrance and exit area. The millimeter-wave radar 1 is fixed at the center position of the D surface of the L-shaped support through four screws (11, 12, 13, 14), and the screw size d = M6 - M12, L = 40 - 60 mm.

[0029] Specifically, in the solution of this embodiment, the RSU edge computing device 2 is fixed inside the L-shaped support 4 through a second fixing member; the second fixing member includes four hexagon bolts. The RSU edge computing device 2 is connected to the millimeter-wave radar 1, and according to the detection data of the millimeter-wave radar 1, data analysis and processing are performed to obtain the traffic conditions in the entrance and exit area. As Figure 4 shown, the RSU edge computing device 2 is fixed inside the L-shaped support through four hexagon bolts (21, 22, 23, 24), and the bolt size d = M12 - M20, L = 40 - 60 mm.

[0030] Specifically, in the solution of this embodiment, the fixed suspension 5 is installed at the top of the entrance and exit of the underground road through a vertical metal vertical arm 51. As Figure 6 shown, the L-shaped support 4 has a total of six surfaces A - F, and on the B surface, it is fixed at the center position of the fixed suspension 5 through two bolts (41, 42), and the fixed suspension 5 is installed above the underground road through the vertical metal vertical arm 51.

[0031] Specifically, in the solution of this embodiment, the lens of the marking projection lamp 3 faces vertically; it should be noted that according to the actual situation of the underground road entrance and exit area, an unequal number of marking projection lamps 3 are installed in the slide rail 52 below the top fixed suspension 5, the projection lamp lens faces vertically downward, and the coverage range of each group of lamps is 3.5m (3.75m) × 15m (6m). The matrix scheme of lamp layout should be designed in combination with the actual situation of the entrance and exit.

[0032] Specifically, in the solution of this embodiment, the traffic markings include markings of different colors, different shapes and different texts.

[0033] Compared with the prior art, the present utility model provides an intelligent variable marking device for underground road entrances and exits, having the following beneficial effects:

[0034] Through the coordinated action of the millimeter-wave radar 1, the RSU edge computing device 2 and the marking projection lamp 3, the present utility model realizes adjusting the traffic organization plan of the entrance and exit area according to the real-time traffic conditions, and improves the traffic operation efficiency. This device has good applicability and practicability in the underground road scenario, and can provide a new tool for the field of underground road traffic management. The device can be properly installed at the suspension position above the underground road, use the millimeter-wave radar 1 to sense and obtain the vehicle radar reflection data in the underground road entrance and exit area, obtain the vehicle trajectory data through the RSU edge computing device 2, thereby analyzing and obtaining the traffic operation data in the entrance and exit area, and finally project the traffic marking plan by the marking projection lamp 3. This utility model has positive significance for improving the traffic operation efficiency and safety in the underground road entrance and exit area. In addition, the underground road scenario can provide a stable lighting environment and is not affected by the weather, which is very conducive to the implementation of this device.

[0035] The technical solutions provided by the embodiments of the present utility model have been introduced in detail above. Specific examples are used in this article to elaborate on the principles and implementation manners of the embodiments of the present utility model. The descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present utility model; at the same time, for those of ordinary skill in the art, based on the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation on the present utility model.

Claims

1. An intelligent variable marking device for an underground road entrance and exit, comprising a fixed suspension; the fixed suspension is installed on the top of the underground road entrance and exit; characterized in that: A millimeter-wave radar for transmitting and receiving millimeter-wave signals is installed in the middle of the fixed suspension through an L-shaped support; an RSU edge computing device for receiving and processing point cloud data of the millimeter-wave radar is installed inside the L-shaped support; a slide rail is provided at the bottom of the fixed suspension; and a number of marking projection lamps for projecting traffic markings are suspended on the slide rail through an adjustable component.

2. The intelligent variable marking device for underground road entrance and exit according to claim 1, characterized in that: The adjustable component includes a structural member, an adjustment base and an adjustment knob; the structural member can be slidably mounted on the slide rail; the bottom of the structural member is connected to the adjustment base; The marking line projection lamp is rotatably mounted on the bottom of the adjustment base through the adjustment knob.

3. The intelligent variable marking device for underground road entrance and exit according to claim 1 is characterized by: The millimeter wave radar is fixed on the L-shaped support through a first fixing member; the first fixing member includes four screws.

4. The intelligent variable marking device for underground road entrance and exit according to claim 1 is characterized by: The RSU edge computing device is fixed inside the L-shaped support through a second fixing member; the second fixing member includes four hexagonal bolts.

5. The intelligent variable marking device for underground road entrance and exit according to claim 1 is characterized by: The fixed suspension is installed on the top of the underground road entrance and exit through a vertical metal vertical arm.

6. The intelligent variable marking device for underground road entrance and exit according to claim 1 is characterized by: The lenses of the marking projection lights are oriented vertically; the coverage range of each group of marking projection lights is 3.5m×15m or 3.75m×6m.

7. The intelligent variable marking device for underground road entrance and exit according to claim 1 is characterized by: The traffic markings include markings of different colors, shapes and words.

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