CN201311715Y

CN201311715Y - Tunnel exit safety early-warning system

Info

Publication number: CN201311715Y
Application number: CN 200820124292
Authority: CN
Inventors: 王猛; 刘清彬; 汪林; 吴涛; 张利; 李平生; 刘皓
Original assignee: Research Institute of Highway Ministry of Transport
Current assignee: Research Institute of Highway Ministry of Transport
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-09-16
Anticipated expiration: 2018-12-11

Abstract

The utility model discloses a tunnel exit safety early-warning system which comprises a tunnel exit detection device, a roadside processor, a roadside optical cable, a roadside short-distance communication DSRC module and a vehicular device, wherein the tunnel exit detection device comprises a video detector for detecting the measured speed, an embedded type pavement condition detector and a visibility detector; the road processor has image processing function, the signal input end of the roadside processor is respectively connected with signal output ends of the tunnel exit detection device; the roadside cable is taken as a data and video transmission channel and connected among the tunnel exit detection device, the roadside processor and the short-distance communication module; the roadside short-distance communication DSRC module is arranged in a tunnel or at the tunnel exit; the vehicular device comprises a vehicular information wireless receiving module for receiving early-warning information transmitted from the roadside short-distance communication module, a vehicular information processing module, a vehicular GPS positioning module for displaying the opposite position of vehicles and the tunnel exit and a vehicular information displaying module. The tunnel exit safety early-warning system can solve the problem that the traffic accidents are caused easily at the tunnel exit.

Description

The tunnel exit safety pre-warning system

Technical field

The utility model belongs to intelligent transportation field.

Background technology

The tunnel exit place is the place of easily causing traffic hazard, it mainly is reason: (1) some driver's dark adatpation ability owing to following several respects, when tunnel internal and external environment lighting condition significant change, have long adaptation time, cause forming the blind area of safety traffic at tunnel exit; (2) highway layout at some tunnel exit places unreasonable (connecting sharp radius curve) as the tunnel, the sighting distance that causes driving a vehicle is less, and the driving sighting distance is bad; (3) under the sleety weather, difference is very big in the wet and slippery degree in the outer road surface of tunnel exit, freeze state and the tunnel, easily cause vehicle out of control in the exit, break away; (4) under the greasy weather situation, visibility is very bigger than visibility difference in the tunnel outside the tunnel, causes the driver can't judge road ahead and traffic in the exit.Checkout equipment collections such as the traffic behavior of installing by the tunnel exit place, traffic events, pavement state, visibility may be brought out the information of accident, carry out fusion treatment through the trackside processor then, send to mobile unit by DSRC again, the prompting driver takes measures in advance, is one of effective means of avoiding the tunnel face accident.

Summary of the invention

The purpose of this utility model provides a kind of tunnel exit safety pre-warning system, to solve the problem that traffic hazard is caused at the tunnel exit place easily.

The technical scheme of tunnel exit safety pre-warning system described in the utility model comprises:

The tunnel exit checkout equipment is formed by having video detector, flush type roadway-surface-conddetector detector and the visibility detecting device that detects that test the speed;

Trackside processor with image processing function, this processor input signal end is connected respectively with the signal output part of tunnel exit checkout equipment;

The trackside optical cable, this trackside optical cable is data and video transmission passage, is connected between tunnel exit checkout equipment, processor and the short distance communication module;

Trackside short distance communication module, this module are arranged in the tunnel or the tunnel portal place;

Mobile unit comprises on-vehicle information wireless receiving module, the on-vehicle information processing module of accepting to utilize the early warning information that trackside short distance communication module transmits, shows vehicle and vehicle GPS locating module and on-vehicle information display module with the relative position of road outlet.

The utlity model has following advantage:

1, can detect tunnel face road speed, congestion and traffic events situation; Can carry out continuous monitoring to the tunnel face atmospheric visibility; Can detect such as road surface, tunnel face meteorologies such as drying, humidity, ponding, simultaneously can also the road pavement ice sheet, parameter detecting such as water layer.

2, image processing function obtains the video information with the place, road junction, judges whether to take place unusual traffic events by the processing to video information;

3, anomalous event arbitration functions: the data by road pavement condition detector, the collection of visibility detecting device are carried out fusion treatment, judge whether to exist anomalous events such as the road surface is wet and slippery, icy on road, low visibility, when visibility, road surface degree of drying etc. is lower than threshold value, can generate early warning information.

4, can early warning information be transferred to mobile unit by wireless mode, show information such as traffic events and barrier caution, caution icy on road, the wet and slippery caution in road surface, low visibility caution, road alignment demonstration.

Description of drawings

Fig. 1 is the structural representation of tunnel exit safety pre-warning system of the present utility model.

Fig. 2 is an early warning program flow diagram of the present utility model.

Fig. 3 is the mobile unit system chart.

Embodiment

Checkout equipment collections such as the traffic behavior that the utility model is installed by the tunnel exit place, traffic events, pavement state, visibility may be brought out the information of accident, carry out fusion treatment through the trackside processor then, send to mobile unit by DSRC again, the prompting driver takes measures in advance.This system is made up of information detection, information processing, wireless transmission, four major parts of mobile unit.Concrete structure is referring to Fig. 1.

Information detects (trackside environment sensing) module, i.e. tunnel exit checkout equipment, and it comprises: video detector-video camera 3, can detect tunnel face road speed, congestion and traffic events situation; Visibility detecting device 2 can carry out continuous monitoring to the tunnel face atmospheric visibility; Flush type roadway-surface-conddetector detector 1 can detect such as road surface, tunnel face meteorologies such as drying, humidity, ponding, simultaneously can also the road pavement ice sheet, parameter detecting such as water layer.

Trackside information wire transmission module, i.e. trackside optical cable is for providing data and video transmission passage between trackside information detection module, message processing module and the DSCR roadside device.

Information processing is to realize that by trackside message processing module 4 it has: 1, image processing function, obtain video information with the place, road junction, and judge whether to take place unusual traffic events by processing to video information; 2, anomalous event arbitration functions: the data by road pavement condition detector, the collection of visibility detecting device are carried out fusion treatment, judge whether to exist anomalous events such as the road surface is wet and slippery, icy on road, low visibility, when visibility, road surface degree of drying etc. is lower than threshold value, can generate early warning information.

Special-purpose short distance communication (DSRC) module 5, when vehicle entered Dedicated Short Range Communications, devices communicating scope, the DSRC roadside device was transferred to mobile unit with early warning information by wireless mode.

Mobile unit 6 comprises:

1, on-vehicle information wireless receiving module is accepted the early warning information of utilizing the DSRC roadside device to transmit;

2, on-vehicle information processing module is handled the dangerous information that roadside device transmits, and distinguishes the classification of information, the difference of the contrast tunnel face speed of a motor vehicle and current vehicle speed, the mode of selecting early warning and information to show;

3, vehicle GPS locating module is judged vehicle location, and the coupling by gps data and vehicle-mounted map, shows vehicle and with the relative position at road junction;

4, on-vehicle information display module, it comprises following function: traffic events and barrier caution, caution icy on road, the wet and slippery caution in road surface, low visibility caution, road alignment show.

Early warning program circuit of the present utility model is referring to the described step of Fig. 2.

The schematic block circuit diagram of mobile unit system is referring to Fig. 3.The DSRC Dedicated Short Range Communications, module of mobile unit system is connected with the respective end of data processing module with GPS global positioning satellite module, and screen display is connected with the respective end of data processing module with voice suggestion.

Claims

1, a kind of tunnel exit safety pre-warning system is characterized in that it comprises:

Mobile unit comprises on-vehicle information wireless receiving module, the on-vehicle information processing module of accepting to utilize the early warning information that trackside short distance communication module transmits, vehicle GPS locating module and the on-vehicle information display module that shows the relative position of vehicle and tunnel exit.