Low-cost highway rain and fog weather vehicle photoelectric prompting device based on millimeter wave radar
By combining low-cost millimeter-wave radar and photoelectric warning modules, the problems of high cost of vehicle collision avoidance systems and lack of guardrail warnings in rainy and foggy weather on highways have been solved, achieving effective driver warnings and improved safety in rainy and foggy weather.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-03-20
AI Technical Summary
In rainy or foggy weather, existing vehicle collision avoidance systems on highways are costly and not widely available, and guardrails lack active warning functions, resulting in poor driving safety.
It adopts a low-cost millimeter-wave radar module and photoelectric prompting module, combined with microprocessor control of LED lights and reflectors. It uses millimeter-wave radar to monitor traffic flow and switches to active photoelectric prompting in rainy and foggy weather. It is powered by photovoltaic panels, which reduces equipment costs.
In rainy or foggy weather, it effectively alerts drivers to vehicles in front and behind, improving driving safety, reducing accidents, and lowering equipment deployment costs.
Smart Images

Figure CN224020333U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to intelligent driving equipment technical field especially relates to a low cost expressway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar. BACKGROUND
[0002] On the expressway, rain and fog and so on bad weather can cause visibility to reduce greatly, easily cause rear-end collision, collision and so on serious traffic accidents, threaten driving safety. Millimeter wave radar is the radar that detects in millimeter wave band. Usually millimeter wave refers to 30~300GHz frequency domain, has good all-weather working characteristic, can accurately detect the existence of vehicle under rain and fog and so on low visibility environment.
[0003] In prior art, although some vehicles are equipped with anti-collision system, but the equipment cost is high, and cannot be popularized on long distance expressway. In addition, the side guardrail or the identification of the expressway is usually passive reflection, lacks active prompting function, and cannot provide effective warning information for the rear vehicle under complex weather conditions. Therefore, we propose a low cost expressway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar to solve the above problems. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problems in prior art, and provides a low cost expressway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0006] A low cost expressway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar, including installation shell, the functional assembly is arranged in the installation shell;
[0007] The functional assembly includes the millimeter wave radar module, the microprocessor unit arranged in the installation shell, the installation shell is also provided with the power module, the installation shell is also provided with the photoelectric prompt module, and the photoelectric prompt module is electrically connected with the microprocessing unit.
[0008] Preferably, the photoelectric prompt module includes the frame body fixedly connected with the shell, the installation plate is rotatably connected in the frame body, the one side of the installation plate is fixedly connected with the reflector plate, the one side of the installation plate away from the reflector plate is fixedly connected with the lampshade, and the LED lamp is arranged in the lampshade, the one side of the frame body is fixedly connected with the driving motor, and the output end of the driving motor is fixedly connected with the shaft rod, and the shaft rod is fixedly connected with the installation plate.
[0009] Preferably, the through hole is formed in the installation plate, and the LED lamp is arranged in the through hole.
[0010] Preferably, the power module comprises an extension frame fixedly connected with the mounting shell, a photovoltaic panel is fixedly connected on the extension frame, the photovoltaic panel is electrically connected with a storage battery, and the storage battery is arranged in the mounting shell and electrically connected with the functional assembly.
[0011] Preferably, wireless signal transmitters and wireless signal receivers are arranged on the extension frame and electrically connected with the millimeter wave radar module.
[0012] Preferably, the light-reflecting plate is orange yellow, and the lampshade is red.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1、The utility model discloses a functional assembly is arranged, adopts millimeter wave radar module, microprocessor unit, monitors the traffic information in the rain and fog weather, and controls the photoelectric prompt module, and then effectively prompts and early warning to the driver, makes him know that there is vehicle in front and back, and drives carefully, can continuously and real -time for the driver and warn, effectively improve the traffic safety when rain and fog weather, reduce the accident occurrence.
[0015] 2、The utility model discloses a photoelectric prompt module is arranged, adopts the light-reflecting plate and can be used as the guardrail prompt under the daily state, and switches to the self-luminous warning device of LED lamp drive in the rain and fog weather, has better penetration and prompt effect in the rain and fog weather, and through setting up photovoltaic panel cooperation storage battery, can realize the conversion of solar energy into electric energy, need not set up the circuit for this kind of prompt device, reduces the equipment layout cost. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a kind of main view structural schematic diagram of low-cost highway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar that the utility model proposes;
[0017] Fig. 2 It is a kind of main view structural schematic diagram of low-cost highway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar that the utility model proposes;
[0018] Fig. 3 It is a kind of main view structural schematic diagram of low-cost highway rain and fog weather vehicle photoelectric prompt device based on millimeter wave radar that the utility model proposes;
[0019] In the drawing: 1, mounting shell;2, millimeter wave radar module;3, frame;4, mounting plate;5, light-reflecting plate;6, lampshade;7, LED lamp;8, driving motor;9, extension frame;10, photovoltaic panel;11, wireless signal transmitter. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0021] Referring to Figs. 1-3 A low-cost highway rain and fog weather vehicle photoelectric prompting device based on a millimeter wave radar comprises a mounting shell 1, and a functional assembly is arranged in the mounting shell 1.
[0022] The functional assembly comprises a millimeter wave radar module 2 and a microprocessor unit arranged in the mounting shell 1, a power module is further arranged on the mounting shell 1, a photoelectric prompting module is further arranged on the mounting shell 1, and the photoelectric prompting module is electrically connected with the microprocessor unit.
[0023] In this design, the millimeter wave radar module 2 is used for monitoring the traffic flow, the microprocessor unit is used for feeding back the signal of the millimeter wave radar module 2 and controlling the operation of the photoelectric prompting module, and the power module is used for supplying power for the millimeter wave radar module 2, the microprocessor unit and the photoelectric prompting module.
[0024] It should be noted that the prompting device is installed on the road guardrail and can be arranged at intervals of about 100 m, especially for accident-prone sections, highways, mountainous highways in mountainous areas and other sections with frequent rain and fog weather, as a road warning device, the device can send a prompt to the passing vehicles, without the need to equip the corresponding equipment on the vehicles, and has the advantages of wide adaptability, simple installation and erection, etc., can effectively improve the driving safety in rain and fog weather and reduce accidents.
[0025] Further, the photoelectric prompting module comprises a frame body 3 fixedly connected with the shell, a mounting plate 4 is rotatably connected in the frame body 3, a reflecting plate 5 is fixedly connected to one side of the mounting plate 4, a lampshade 6 is fixedly connected to the side of the mounting plate 4 away from the reflecting plate 5, an LED lamp 7 is arranged in the lampshade 6, a driving motor 8 is fixedly connected to one side of the frame body 3, an output end of the driving motor 8 is fixedly connected with a shaft rod, and the shaft rod is fixedly connected with the mounting plate 4.
[0026] The reflecting plate 5 is orange yellow, and the lampshade 6 is red.
[0027] In this design, the reflector 5 is used for normal weather, the light of the car itself is reflected at night, so as to prompt the driver to the position of the guardrail, so that he can drive along the lane, and in rainy and foggy weather, the reflected light is greatly attenuated, at this time, the micro processing unit controls the driving motor 8 to operate, drives the frame body 3 to rotate, so that the side of the mounting plate 4 with the lampshade 6 faces the road, and controls the LED lamp 7 to emit light, uses the red light with better penetration in rainy and foggy weather to prompt the driver, especially when monitoring the oncoming vehicles, the vehicles in front of the lane, etc., so as to make the driver drive carefully and avoid accidents, and not to make the driving behavior of changing lane, overtaking by lane, etc., in addition, under the cooperation of the millimeter wave radar and the micro processing unit, the flashing frequency of the LED lamp 7 can be controlled, when the vehicle is close, the flashing frequency is increased, so as to achieve better prompting effect.
[0028] Further, the mounting plate 4 is provided with a through hole, and the LED lamp 7 is arranged in the through hole;
[0029] When the environment is a mountainous road, the up and down slopes are steep, the through hole is provided for the LED lamp 7, so that the LED lamp 7 can be used for light supplement when the reflector 5 cannot reflect the car light, so that the reflector 5 actively emits light at night, and better prompting effect is achieved.
[0030] Further, the power module comprises an extension frame 9 fixedly connected with the mounting shell 1, a photovoltaic panel 10 fixedly connected with the extension frame 9, the photovoltaic panel 10 is electrically connected with a storage battery, and the storage battery is arranged in the mounting shell 1, and the storage battery is electrically connected with the functional components;
[0031] In this design, the photovoltaic panel 10 cooperates with the storage battery to convert solar energy into electrical energy, so that the prompting device does not need to be arranged with a cable circuit, and the equipment layout cost is reduced.
[0032] Further, the extension frame 9 is provided with a wireless signal transmitter 11 and a wireless signal receiver, and the wireless signal transmitter 11 and the wireless signal receiver are electrically connected with the millimeter wave radar module 2;
[0033] The wireless signal transmitter 11 and the wireless signal receiver are used for generating and receiving millimeter wave signals, and are arranged on the extension frame 9, so that better detection effect can be achieved.
[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A low-cost photoelectric warning device for vehicles in rainy and foggy weather on highways based on millimeter-wave radar, characterized in that, Includes a mounting shell (1), and functional components are disposed inside the mounting shell (1); The functional components include a millimeter-wave radar module (2) and a microprocessor unit located inside the mounting housing (1). The mounting housing (1) is also equipped with a power module and a photoelectric prompt module, and the photoelectric prompt module is electrically connected to the microprocessor unit. The photoelectric prompting module includes a frame (3) fixedly connected to the housing, a mounting plate (4) rotatably connected inside the frame (3), a reflector (5) fixedly connected to one side of the mounting plate (4), a lampshade (6) fixedly connected to the side of the mounting plate (4) away from the reflector (5), and an LED light (7) is provided inside the lampshade (6). A drive motor (8) is fixedly connected to one side of the frame (3), and a shaft is fixedly connected to the output end of the drive motor (8), and the shaft is fixedly connected to the mounting plate (4).
2. The low-cost vehicle photoelectric warning device based on millimeter-wave radar for highways in rainy and foggy weather according to claim 1, characterized in that, The mounting plate (4) has a through hole, and the LED light (7) is located inside the through hole.
3. A low-cost vehicle photoelectric warning device based on millimeter-wave radar for highways in rainy and foggy weather, as described in claim 1, is characterized in that... The power module includes an extension frame (9) fixedly connected to the mounting housing (1), a photovoltaic panel (10) fixedly connected to the extension frame (9), a battery electrically connected to the photovoltaic panel (10), and the battery located inside the mounting housing (1). The battery is electrically connected to the functional components.
4. A low-cost vehicle photoelectric warning device based on millimeter-wave radar for highways in rainy and foggy weather, as described in claim 3, is characterized in that... The extension frame (9) is equipped with a wireless signal transmitter (11) and a wireless signal receiver, which are electrically connected to the millimeter-wave radar module (2).
5. A low-cost vehicle photoelectric warning device based on millimeter-wave radar for highways in rainy and foggy weather, as described in claim 1, is characterized in that... The reflector (5) is orange-yellow, and the lampshade (6) is red.