CN201266439Y

CN201266439Y - System for early-warning curve barrier

Info

Publication number: CN201266439Y
Application number: CN 200820122886
Authority: CN
Inventors: 王猛; 梅新明; 李斌; 孔涛; 李平生; 刘清彬; 张春雨
Original assignee: Research Institute of Highway Ministry of Transport
Current assignee: Research Institute of Highway Ministry of Transport
Priority date: 2008-10-13
Filing date: 2008-10-13
Publication date: 2009-07-01
Anticipated expiration: 2018-10-13

Abstract

The utility model provides a bend roadblock early-warning system which consists of two major parts: a road side facility and a vehicle-bone facility; the road side facility comprises a road side traffic event detection device, a road side information processing unit, a road side special short-distance communication unit and a variable information board; the road side traffic event detection device is arranged in a bend; the variable information board and the road side special short-distance communication unit are respectively arranged at the upstream of the event detection device in the bend; the vehicle-bone facility comprises a GPS positioning module, a special short-distance communication module, a vehicle-bone information processing unit and a vehicle-bone display screen; and the special short-distance communication module and the road side short-distance communication unit are connected with each other in a way of wireless communication. The bend roadblock early-warning system is based on the information interaction of the vehicle-bone facility and the road side facility, provides a roadblock information prompting and early-warning of the road section with bad visual distance such as bend, and the like for the driver, and has the advantages of widening the visual field of the driver, reducing the collision accidents such as rear collision, and the like.

Description

Bend barrier early warning system

Technical field

The utility model belongs to the intelligent transport technology field, particularly relates to the road safety prior-warning device.

Background technology

Good sighting distance is one of basic guarantee condition of traffic safety.But because China's complicated topographical conditions has the bad highway section of a lot of sharp turns and sighting distance in real road.Vehicle is when these bad highway sections of sighting distance, because people's physiology sensing range is limited, is difficult to know the obstacle information behind the bend, as the vehicle that casts anchor, the queuing vehicle etc. that blocks up, and can't take counter-measure in advance, thereby causes traffic hazard such as knock into the back easily.Automatically discern barrier in the bend by advanced person's traffic events detection technique, and by variable information plate issue early warning information, by the Dedicated Short Range Communications, mode obstacle information is transferred to mobile unit simultaneously, the prompting driver takes measures in advance, is one of effective means of avoiding the bend collision accident.

Summary of the invention

The purpose of this utility model provides a kind of bend barrier early warning system, utilizes mobile unit and trackside facilities information mutual with solution, and the obstacle information prompting in the bad highway sections of sighting distance such as bend and the technical matters of early warning are provided for the driver.

The utility model realizes that the technical scheme of above-mentioned purpose is as follows: this system is made up of trackside and vehicle-mounted facility two large divisions, and the trackside facility comprises trackside traffic events pick-up unit, trackside information process unit, trackside Dedicated Short Range Communications, unit and variable information plate; Trackside traffic events pick-up unit is a video acquisition device, is installed in the bend; The variable information plate is an electronic display, and variable information plate and trackside Dedicated Short Range Communications, unit are installed in the upstream of the described event detection device in the bend; Trackside traffic events pick-up unit is connected with the input end of trackside information process unit, and the trackside information process unit is connected with trackside Dedicated Short Range Communications, unit with the variable information plate; Vehicle-mounted facility comprises GPS locating module, Dedicated Short Range Communications, module, on-vehicle information processing unit, vehicle-carrying display screen; Vehicle GPS locating module wherein and deciphering that signal is encoded, contrast, computing, the input end of on-vehicle information processing unit of judging the real time position in track, vehicle place are connected, described Dedicated Short Range Communications, module realizes that with trackside Dedicated Short Range Communications, unit radio communication is connected, and this Dedicated Short Range Communications, module is connected with vehicle-carrying display screen by the on-vehicle information processing unit.

The utility model is based on mobile unit and trackside facilities information alternately, and the obstacle information prompting in the bad highway sections of sighting distance such as bend and the system of early warning are provided for the driver, has the expansion driver's seat, the minimizing advantages such as generation of collision accident such as knock into the back.

Description of drawings

Fig. 1 is a system principle diagram of the present utility model.

Fig. 2 of the present utility modelly is provided with synoptic diagram at bend.

Fig. 3 is a bend barrier warning function region decision flow process of the present utility model.

Embodiment

This system be with global position system GPS position, incident detects automatically, Dedicated Short Range Communications, technology such as (DSRC) is a hardware foundation; Under general-purpose operating system environment, utilize the vertical application of VC++ program language programming to be basis of software in application program by being installed in the special purpose computer (trackside information process unit) in the traffic information issue receiving trap and the truck-mounted computer (on-vehicle information processing unit).

This system comprises that trackside and vehicle-mounted facility two large divisions form, referring to shown in Figure 1.Wherein the trackside facility comprises trackside traffic events pick-up unit, trackside information process unit, trackside Dedicated Short Range Communications, unit and variable information plate.Vehicle-mounted facility comprises GPS locating module, Dedicated Short Range Communications, module, on-vehicle information processing unit, vehicle-carrying display screen.

Bad in sighting distance, as to need to install early warning system upstream separately, forward and reverse track, highway section, utilize the traffic events video detecting device of trackside, come the real-time image information data that obtains, send into the computer information processing unit in the trackside device, by computing machine to the view data calculation process, utilize the image recognition software of technology maturation, whether the road conditions of judging monitoring the situation of influential normal driving, and utilize traffic information issue receiving trap, the real-time situation with monitoring utilizes variable information plate and Dedicated Short Range Communications, device to release.Native system is provided with signal referring to Fig. 2 at the early warning bend,

When the vehicle that vehicle-mounted Dedicated Short Range Communications, device is installed travels in this highway section, receive the real-time road condition information that the traffic information transceiver sends by the Dedicated Short Range Communications, device, this information is sent into truck-mounted computer, vehicle ' position data and the contrast of traffic information data fusion that computing machine obtains by vehicle GPS, judge, whether the highway section, the place ahead in normal vehicle operation has undesired road conditions, if do not have, just can travel as usual; If have, then, the driver is sent corresponding prompt: utilize car-mounted device equipment according to the particular location of vehicle--modes such as-voice loudspeaker, pilot light, screen picture.When the travel speed of vehicle and the real time position in this highway section might be near precarious positions, start warning function and judge flow process, as shown in Figure 3, the driver is proposed to alarm dangerous urgent cue, to avoid the generation of accident.

Claims

1, a kind of bend barrier early warning system is characterized in that this system is made up of trackside and vehicle-mounted facility two large divisions, and the trackside facility comprises trackside traffic events pick-up unit, trackside information process unit, trackside Dedicated Short Range Communications, unit and variable information plate; Trackside traffic events pick-up unit is a video acquisition device, is installed in the bend; The variable information plate is an electronic display, and variable information plate and trackside Dedicated Short Range Communications, unit are installed in the upstream of the described event detection device in the bend; Trackside traffic events pick-up unit is connected with the input end of trackside information process unit, and the trackside information process unit is connected with trackside Dedicated Short Range Communications, unit with the variable information plate; Vehicle-mounted facility comprises GPS locating module, Dedicated Short Range Communications, module, on-vehicle information processing unit, vehicle-carrying display screen; Vehicle GPS locating module wherein and deciphering that signal is encoded, contrast, computing, the input end of on-vehicle information processing unit of judging the real time position in track, vehicle place are connected, described Dedicated Short Range Communications, module realizes that with trackside Dedicated Short Range Communications, unit radio communication is connected, and this Dedicated Short Range Communications, module is connected with vehicle-carrying display screen by the on-vehicle information processing unit.