CN208225299U - A kind of highway low visibility area's traffic safety guides system - Google Patents

Abstract

The utility model discloses a driving safety guidance system in a low-visibility area of an expressway, which includes a visibility detection device fixed in the low-visibility area of the expressway, and a vehicle-mounted power supply, a vehicle-mounted detection device and an alarm device installed on the vehicle body. The vehicle-mounted detection device and the alarm device are respectively connected with the vehicle-mounted power supply; the vehicle-mounted detection device collects the distance signal collected by itself, the vehicle speed signal and the visibility signal of the visibility detection device, and the opening/closing of each light switch in the vehicle body lighting switch system The closed state signal is judged to control the alarm unit to turn on/off the alarm. The above-mentioned driving safety guidance system in the low-visibility area of the expressway is simple in structure and low in cost, and has no safety hazards to the existing vehicle system. The system promptly reminds the driver to control the vehicle lights, vehicle speed and State information such as vehicle distance, high detection accuracy, reasonable design, improve driving safety, and at the same time improve the driver's traffic safety awareness.

Description

A Driving Safety Guidance System in Low Visibility Area of Expressway

technical field

The utility model relates to the field of vehicle-mounted equipment, in particular to a driving safety guidance system in a low-visibility area of an expressway.

Background technique

With the increase of car ownership, highway car traffic accidents occur frequently, one of the main reasons is that the driver's vision is poor due to rain, fog, haze and other weather, and car rear-end collisions and other accidents occur. In the prior art, there are mainly three ways to solve the problem of driving in the low-visibility area of the expressway: one is to inform the driver of the weather or road conditions in time through the broadcast system; the other is to release information such as weather conditions in time through display devices such as LEDs; It is to reduce the occurrence of accidents by means of automobile auxiliary driving equipment. The above methods have single functions, poor reliability and certain limitations. In addition, Article 81 of the "Regulations on the Implementation of Road Traffic Safety of the People's Republic of China" stipulates that when a motor vehicle is driving on an expressway and encounters low-visibility weather conditions such as fog, rain, snow, sand, and hail, it shall abide by the following: Regulations: (1) When the visibility is less than 200 meters, turn on the fog lights, dipped beam lights, position lights and front and rear position lights, the speed of the vehicle shall not exceed 60 kilometers per hour, and keep a distance of more than 100 meters from the vehicle ahead in the same lane; (2) When the visibility is less than 100 meters, turn on the fog lights, dipped beam lights, position lights, front and rear position lights and hazard warning flashing lights, the speed of the vehicle must not exceed 40 kilometers per hour, and keep a distance of more than 50 meters from the vehicle ahead in the same lane; (3) Visibility When the distance is less than 50 meters, turn on the fog lights, dipped beam lights, position lights, front and rear position lights and hazard warning lights, the speed of the vehicle must not exceed 20 kilometers per hour, and leave the expressway as soon as possible from the nearest exit.

Utility model content

The utility model aims at the problem that the prior art cannot judge the safety information and remind the driver of the safety situation in time according to the simultaneously detected information such as the use of vehicle lights, vehicle speed, and vehicle distance, and provides a driving safety guidance system for low-visibility areas on expressways.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A driving safety guidance system in a low-visibility area of an expressway, including a visibility detection device fixed in a low-visibility area of an expressway, and a vehicle-mounted power supply, a vehicle-mounted detection device, and an alarm device installed on a car body, the vehicle-mounted detection device and alarm The devices are respectively connected to the on-board power supply; the on-board detection device judges by collecting the distance signal collected by itself, the vehicle speed signal and the visibility signal of the visibility detection device, and the on/off state signal of each light switch in the car body lighting switch system, To control the alarm unit to turn on/off the alarm.

Wherein, the visibility detection device includes a visibility sensor, a first wireless communication unit, a visibility judging unit and a power supply; the visibility sensor, the first wireless communication unit, and the visibility judging unit are respectively connected in parallel with the power supply.

The vehicle-mounted detection device includes a radar ranging unit, a vehicle speed sensing unit, a second wireless communication unit and a vehicle-mounted main control unit; the radar ranging unit, the vehicle speed sensing unit and an alarm unit, and the second wireless communication unit communicate with the vehicle The main control unit is connected; the inside of the car body also includes a car control panel; the vehicle main control unit is fixed on the car control panel; the radar distance measuring unit, the vehicle speed sensing unit and the second wireless communication unit are respectively installed on the The front side of the car body exterior.

The lighting switch system includes a fog light switch, a low beam light switch, a position light switch, a front and rear position light switch and a hazard warning light switch; and the hazard warning light switch are respectively connected with the vehicle-mounted main control unit.

Preferably, the vehicle-mounted main control unit is a single-chip microcomputer MCU.

Preferably, the visibility detection device is installed at the two-way entrance of the target road section of the expressway.

Preferably: the radar ranging unit is installed in the middle of the front bumper outside the car body.

Preferably: the alarm unit includes a warning light and a voice prompt unit, and the warning light and the voice prompt unit are respectively installed on the vehicle detection device.

In the above-mentioned driving safety guidance system in the low-visibility area of the expressway, the visibility detection device detects and determines the visibility value detected by the visibility sensor, and sends a visibility signal to the second wireless communication unit of the vehicle-mounted device through the first wireless communication unit in the device, If the visibility is less than 50m, the vehicle-mounted main control unit in the vehicle-mounted detection device determines whether the fog light switch, the low beam light switch, the position light switch, the front and rear position light switches and the hazard warning light switch etc. are closed, and the vehicle speed sensing unit Whether the detected vehicle speed is less than 20km/h, if one or more of them are no, then the alarm device is turned on until all of the items are yes, and the alarm is eliminated; if the visibility is less than 100m, the vehicle-mounted main control unit determines that the fog Whether the light switch, low beam light switch, position indicator light switch, front and rear position light switch and hazard warning light switch are closed; Whether the front vehicle distance is greater than 50m, if one or more items are no, the warning lights will flash, and a voice alarm will be issued until each item is yes, and the alarm will be cleared; if the visibility is less than 200m, the vehicle-mounted main control unit will determine whether the fog lights Whether the switch, dipped beam switch, position indicator light switch, and front and rear position light switches are closed, whether the vehicle speed detected by the vehicle speed sensor is less than 60km/h, and whether the distance between the vehicle ahead and the vehicle in the same lane measured by the radar distance measuring unit is greater than 100m. If one or more items are false, the alarm device will be turned on until each item is yes, and the alarm will be eliminated; if the visibility is greater than 200m, the on-board detection device will not work.

Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

The above-mentioned driving safety guidance system in the low-visibility area of the expressway is simple in structure and low in cost, and has no safety hazards to the existing vehicle system. The system timely reminds the driver to control the vehicle lights, vehicle speed and State information such as vehicle distance, high detection accuracy, reasonable design, improve driving safety, and at the same time improve the driver's traffic safety awareness.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment 1;

Among them, 1-power supply, 2-visibility determination unit, 3-first wireless communication unit, 4-visibility sensor, 5-second wireless communication unit, 6-warning lights, 7-vehicle main control unit, 8-vehicle power supply , 9-radar distance measuring unit, 10-vehicle speed sensing unit, 11-voice prompt unit, 12-fog light switch, 13-low beam light switch, 14-position lamp switch, 15-front and rear position light switch, 16- Hazard warning light switch.

Detailed ways:

The drawings are only for illustration (mainly taking the trolley as an example), and should not be understood as limitations on this patent;

In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

Below in conjunction with Fig. 1 the utility model is further described.

As shown in Figure 1, a driving safety guidance system in a low-visibility area of an expressway includes a visibility detection device fixed in the low-visibility area of the expressway, and an on-board power supply 8 installed on the car body, an on-board detection device and an alarm device, The vehicle-mounted detection device and the alarm device are connected with the vehicle-mounted power supply 8 respectively; The opening/closing state signal is judged to control the alarm unit to open/close the alarm. The visibility detection equipment can be preferably installed at the two-way entrance of the target road section of the expressway.

The visibility detection device includes a visibility sensor 4, a first wireless communication unit 3, a visibility judging unit 2 and a power supply 1; the visibility sensor 4, the first wireless communication unit 3, and the visibility judging unit 2 are respectively connected in parallel with the power supply 1.

The vehicle-mounted detection device includes a radar ranging unit 9, a vehicle speed sensing unit 10, a second wireless communication unit 5 and a vehicle-mounted main control unit 7; the radar ranging unit 9, the vehicle speed sensing unit 10 and an alarm unit, the second The wireless communication unit 5 is respectively connected with the vehicle-mounted main control unit 7; the inside of the car body also includes a car control panel; the vehicle-mounted main control unit 7 is fixed on the vehicle control panel; the radar ranging unit 9, the vehicle speed sensor Unit 10 and the second wireless communication unit 5 are respectively installed on the front side outside the car body, wherein the vehicle-mounted main control unit 7 is a single-chip MCU, and the radar distance measuring unit can preferably be installed on the front bumper outside the car body. middle part.

Described lighting switch system comprises fog lamp switch 12, dipped beam switch 13, position lamp switch 14, front and rear position lamp switch 15 and hazard warning light switch 16; The light switch 14 , the front and rear position light switches 15 and the hazard warning light switch 16 are respectively connected with the vehicle-mounted main control unit 7 .

The alarm unit includes an alarm lamp 6 and a voice prompt unit 11, and the alarm lamp and 6 voice prompt unit 11 are respectively installed on the vehicle-mounted detection device.

In the above-mentioned driving safety guidance system in the low-visibility area of the expressway, the visibility detection device detects and determines the visibility value detected by the visibility sensor, and sends the visibility value to the second wireless communication unit 5 of the vehicle-mounted device through the first wireless communication unit 3 in the device. signal, if the visibility is less than 50m, the vehicle-mounted main control unit 7 in the vehicle-mounted detection device determines the fog light switch 12, the dipped beam light switch 13, the position marker light switch 14, the front and rear position light switches 15 and the hazard warning light switch 16 Wait whether closed, whether the speed of a vehicle detected by the speed sensing unit 10 is less than 20km/h, if one or more of them are no, then the alarm device is opened until each item is yes, and the alarm is eliminated; if the visibility is less than 100m, The vehicle-mounted main control unit determines whether the fog light switch 12, the low beam light switch 13, the position indicator light switch 14, the front and rear position light switches 15 and the hazard warning light switch 16 are closed, and whether the vehicle speed detected by the vehicle speed sensor unit 10 is Less than 40km/h, whether the distance between the vehicle in front of the same lane measured by the radar ranging unit 9 is greater than 50m, if one or more items are not, then the warning light 6 will flash, and the voice prompt unit 11 will give a voice alarm at the same time until each item is Yes, the alarm is cleared; if the visibility is less than 200m, the vehicle-mounted main control unit determines whether the fog light switch 12, the low beam light switch 13, the position light switch 14, and the front and rear position light switches 15 are closed, and the vehicle speed sensing unit 10 detects Whether the arriving vehicle speed is less than 60km/h, whether the distance between the vehicle in front of the same lane measured by the radar ranging unit 9 is greater than 100m, if one or more items are no, then the alarm device is turned on until each item is yes, and the alarm is eliminated; If the visibility is greater than 200m, the on-board detection device will not work.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (5)

1. a kind of highway low visibility area's traffic safety guides system, it is characterised in that: low including being installed in highway The visibility detection device in visibility area, and the vehicle power supply, vehicle-mounted detection apparatus and the alarm dress that are installed on automobile body It sets, the vehicle-mounted detection apparatus and warning device are connected with a vehicle-mounted power supply respectively；The vehicle-mounted detection apparatus is by collecting itself It is each in the distance signal of collection, the visibility signal of speed signal and visibility detection device and vehicle ontology illuminating switch system The opened/closed status signal of luminous lamp switch is determined, to control alarm unit unlatching/closing alarm.

2. highway low visibility according to claim 1 area's traffic safety guides system, which is characterized in that the energy Degree of opinion detection device includes visibility sensor, wireless communication unit, visibility judging unit and power supply；The visibility Sensor, the first wireless communication unit, visibility judging unit are in parallel with power supply respectively.

3. highway low visibility according to claim 1 area's traffic safety guides system, which is characterized in that the vehicle Carrying detection device includes radar range finding unit, speed sensing unit, the second wireless communication unit and vehicle-mounted main control unit；The thunder It is connect respectively with vehicle-mounted main control unit up to distance measuring unit, speed sensing unit and alarm unit, the second wireless communication unit；It is described It further include vehicle control panel inside automobile body；The vehicle-mounted main control unit is installed on vehicle control panel；The radar range finding Unit, speed sensing unit and the second wireless communication unit are respectively arranged in the front side outside automobile body.

4. highway low visibility according to claim 1 area's traffic safety guides system, which is characterized in that the photograph Bright switching system includes fog lamp switch, dipped beam lamp switch, clearance lamps switch, anteroposterior position lamp switch and danger warning lamp switch；Institute State fog lamp switch, dipped beam lamp switch, clearance lamps switch, anteroposterior position lamp switch and danger warning lamp switch respectively with vehicle-mounted master control list Member connection.

5. highway low visibility according to claim 3 area's traffic safety guides system, which is characterized in that the vehicle Load main control unit is single-chip microprocessor MCU.