A kind of vehicle-mounted road mouth signals indicatorTechnical field
The invention belongs to intelligent transportation field, relate to the application aspect the signal service of crossing of Computer Control Technology and the communication technology.
Background technology
Along with the fast development of China's economy, Urban Road Construction Projects grows with each passing day, road safety problem seems more and more outstanding, the driving behavior of traffic signal violation has a lot of every day, except driver's awareness of safety itself need to be strengthened, have is much that driver cannot see the signal lamp at crossing clearly, is a kind of illegal activities of non-subject intent because be subject to the restriction of road objective condition.For example: signal lamp damages, and signal lamp is blocked by trees, and signal lamp is blocked by the compartment of the oversize vehicle in front, causes driver can not obtain real-time traffic signals but not the illegal activities of subject intent.
At present, for the supervision of violating crossing signal, be mainly the behavior of violating crossing signal to be taken and then punished by some non-at-scene punishment platforms by road surface people's police's on-site law-enforcing and in the quitting time, reach the effect of deterrence.
For fear of the illegal activities of driver's non-subject intent, need us to provide necessary facility that real-time traffic signals are sent to driver there, allow them have time enough to shift to an earlier date anticipation, this is also to optimize traffic flow, reduces a kind of effective measures of traffic violation.
Summary of the invention
The object of the invention is for traffic signals real-time near specified scope driver being sent on driver's mobile unit, driver is according to the travel route of these information anticipations oneself, avoid signal lamp to damage or be blocked and cannot obtain live signal, and the behavior of the traffic signal violation occurring.
The present invention is that the technical scheme that solves its technical matters employing is:
A crossing signal indicating device based on wireless communication networks, comprises crossing signal radio unit, cab signal indicating member and communication unit.Crossing signal radio unit is issued the signal at this crossing by the form of specifying, driver sends request to the crossing signal radio unit near certain limit by cab signal indicating member, after picked up signal, show at display screen, comprise current crossing phase state, current direction, phase place duration, phase place residual time length etc.
Described crossing signal radio unit is the broadcasting equipment being connected with intersection annunciator, the state of Real-time Obtaining belisha beacon, and the form that these status datas are organized into appointment is externally issued.In the time receiving the request of board units, the real-time status data of signal lamp are sent in the past.In the time that phase place changes, can again obtain signal data, again issue, guarantee that up-to-date data and crossing actual conditions are in full accord.
Described cab signal indicating member, be one in conjunction with electronic map platform, near the device of live signal state at crossing showing.In the time that Vehicle Driving Cycle arrives certain crossing, first the IP address of crossing signal radio unit and issue port near obtaining by electronic chart, after successfully obtaining, to this address transmitted signal status request, get after signal data, decode by specified format, and these signals are presented on map.The signal condition at current crossing shows at main window, the wicket demonstration around of the signal condition of adjacent intersection.
Described communication unit is the wireless network that operator Network Based provides, as telecommunications company's 3G network etc.There is SIM card separately at crossing signal radio unit, vehicle-mounted front-end indicating member, interconnected by 3G network.Each crossing signal radio unit has address of service and the port of oneself, for vehicle-mounted front-end indicating member provides inquiry service.
Innovative point of the present invention comprises:
1, the signal at this crossing of crossing signal radio unit Real-time Collection, and issue with the form of service;
2, cab signal indicating member is according to the position at vehicle place, and the signal condition at the current crossing of Real-time Obtaining, shows crossing phase diagram at main window, also can obtain the signal condition of this crossing adjacent intersection simultaneously, and wicket shows around.
Brief description of the drawings
Fig. 1 is system architecture cell schematics.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing, it illustrates principle of the present invention as the part of this instructions by embodiment.
A crossing signal indicating device based on wireless communication networks, comprises crossing signal radio unit, cab signal indicating member and communication unit.The IP address of supposing certain crossing signal radio unit is 60.169.79.145, and issuing port is 33899.This unit directly connects with intersection annunciator, reads in real time the signal lamp state at crossing, and these status datas are externally issued.In the time that the current phase place of intersection annunciator changes, this unit just obtains a secondary data again, and upgrades the data of issuing, near the vehicle this crossing provides up-to-date status data.When Vehicle Driving Cycle is near crossing time, first get the address of service at current crossing according to electronic chart, by setting up end to end and connect with radio unit, inquire about the signal lamp status data of current crossing and adjacent intersection, comprise phase diagram, current phase place, current direction, phase place duration, phase place residual time length etc., and show.Even if block etc. cannot see signal lamp clearly in the situation that at signal lamp failure or by front oversize vehicle like this, still can obtain real-time signal(l)ing condition, avoid the behavior of unnecessary traffic signal violation.By checking the signal lamp state of adjacent intersection, for controlling travel speed and optimize travel route, we provide reference simultaneously.
The various variations of being made by those skilled in the art or remodeling can not depart from the scope of the present invention.