CN2434747Y

CN2434747Y - Radio transmitted traffic lamp signal control and information transmitter

Info

Publication number: CN2434747Y
Application number: CN 00243640
Authority: CN
Inventors: 李希哲; 潘同兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-20
Filing date: 2000-07-20
Publication date: 2001-06-13
Anticipated expiration: 2010-07-20

Abstract

The utility model relates to a wireless transmitted traffic lamp signal controlling and information transmitting device. Every intersection is provided with a microprocessor and the microprocessor is respectively connected with a cresset, an electronic display board, a camera, a compression circuit, an output and an input interfaces, a traffic flow sensor, a wireless communication device, and a base station is connected with a central traffic computer in a traffic guidance center. The information of announcements or massages of a signal, traffic, a city, etc., controlled by a central traffic computer is transmitted through the base station in the wireless mode and is received by the wireless communication device at every intersection. The information can be displayed on the electronic display board by the change of the cresset which is controlled by the microprocessor. The traffic flow condition at every intersection is calculated by the traffic flow sensor, is monitored by the camera and is transmitted to a central communication computer by the wireless communication device again. Because wireless transmission between the microprocessor and the central computer is used, the trouble of arranging wires is saved, and cost is lowered.

Description

The traffic light signal control and the information conveyer of wireless transmission

The utility model relates to a kind of traffic light signal control and signal conveyer, particularly adopts the traffic light signal control and the information conveyer of wireless transmission.

The traffic signal light at general road crossing is with red, yellow, green tri coloured lantern control traffic direction and flow, and all be directly to control by the traffic light signal control box that is located at the crossing, or by the central traffic computer control that is located at far-end, make the red signal lamp used by rail workers may command magnitude of traffic flow at each crossing, smooth and easy to maintain traffic.

When adopting above-mentioned control, be to be connected by cable between the cresset control box at each crossing and the central traffic computer, the controlling signal of central traffic computer is sent to the cresset control box at each crossing by cable.But this kind connection must be set up cable, and the mode of setting up cable usually has two kinds: a kind of is the ground type cable, and it is to set up in the mode of electric pole, and it is attractive in appearance to have influenced the appearance of the city, does not even use so now be eliminated; Another kind is the underground type cable, being about to cable is embedded in underground, though this method can be exempted numerous and diverse overground cable line, but the road surface must be excavated and bury pipeline underground in busy traffic highway section, influenced the magnitude of traffic flow, so only can carry on construction work at night usually, and the cost that carries on construction work at night is than the construction cost height on daytime; In addition, the distance of the cresset control box at this central authorities' traffic computer and crossing how far, and the length of cable is relative length, therefore can spend quite high material cost.

The purpose of this utility model is to provide a kind of traffic light signal control and information conveyer of wireless transmission, and it adopts wireless transmission, has improved transmission efficiency, has avoided the trouble of wiring, and has reduced cost.

The purpose of this utility model is achieved in that wireless transmission traffic light signal control and information conveyer, be characterized in: be equiped with microprocessor in each crossing control device, this microprocessor is gone into the interface with cresset, electronics display board, video camera, compressor circuit, output respectively and is joined, magnitude of traffic flow inductor is gone into the interface through output and is connected to microprocessor, and output is gone into the interface and is connected with wireless communication apparatus; Other has a base station to be connected to the central traffic computer of traffic control center, the message of bulletin such as the controlling signal of this central authorities' traffic computer, traffic, municipal administration or broadcasting, transmit wirelessly via base station, and receive by the wireless communication apparatus at each crossing, and the variation of microprocessor control cresset, and be presented on the electronics display board, the traffic flow conditions at each crossing is calculated by magnitude of traffic flow inductor and the video camera monitoring again, is sent to central traffic computer by wireless communication apparatus again.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a theory diagram of the present utility model;

Fig. 2,3 is an electrical schematic diagram of the present utility model;

Fig. 4 is a workflow diagram of the present utility model.

Referring to accompanying drawing 1,2,3, the utility model is made up of following parts:

Microprocessor 1, it is installed in the control device that is positioned at each crossing, is used to control each circuit;

Cresset 2 is connected in microprocessor 1, and is subjected to microprocessor 1 control and shows direct of travel or the indicating signal that stops;

Electronics display board 3 joins with microprocessor 1, is subjected to little processing 1 control with display text, figure or image;

Video camera 4 joins with microprocessor 1, in order to the traffic conditions of monitor traffic;

Compressor circuit 5 joins with microprocessor 1 and video camera 4, the image data compression that this compressor circuit 5 is plucked video camera 4, and be sent to microprocessor 1;

Interface 6 is gone in output, joins with microprocessor 1, is used for output or input signal;

Magnitude of traffic flow inductor 7 connects output and goes into interface 6, is used to respond to the traffic conditions of traffic, and monitoring signal is sent to microprocessor 1;

Wireless communication apparatus 8, it is connected to output and goes into interface 6, is used for emission or receives signal;

Base station 9, it is connected at the central traffic computer 92 of traffic control center by public transport networking 91, this base station 9 is sent to the microprocessor 1 at each crossing with the controlling signal of central traffic computer 92 in the mode of wireless transmission, and receives the signal that the microprocessor 1 at each crossing is sent.

Workflow of the present utility model as shown in Figure 4, the magnitude of traffic flow inductor 7 of being located at each crossing calculates the traffic flow conditions at this crossing, and the signal of monitoring is gone into face 6 via output be sent to microprocessor 1, and this video camera 4 is sent to compressor circuit 5 with the image of the magnitude of traffic flow, and analog signal conversion is become digital signal via compressor circuit 5, and image is compressed, be sent to microprocessor 1 again, and Ridio communications device 8 sends out the signal calculated of magnitude of traffic flow inductor 7 and the signal of video signal of video camera 4 wirelessly, make the base station 9 that connects central traffic computer 92 be received this signal, again by 2 control times of cresset of central traffic computer 92 calculating optimums, and with this controlling signal to send out by base station 9, make the wireless communication apparatus 8 at each crossing be received controlling signal, and be sent to microprocessor 1, make this microprocessor 1 be controlled the variation of cresset 2.

Above-mentioned again wireless communication apparatus 8 is existing mobile phone, and base station 9 and public communication network 91 also are the wireless telecommunication system of existing mobile phone.

The utility model is owing to adopt said structure, and central traffic computer 92 transmits by wireless mode with the microprocessor 1 at each crossing, has therefore improved work efficiency, has removed the trouble of wiring from, and has reduced cost.Moreover, if the message that has traffic, municipal administration etc. to announce or broadcast, same must this message being sent out by base station 9 by central traffic computer 92 makes each crossing microprocessor 1 be received this message or broadcasting, and show this message by electronics display board 3, and get so that inform the driver.

Claims

1, control of the traffic light signal of wireless transmission and information conveyer is characterized in that: comprising: be installed in the microprocessor that each crossing control device is interior, be used to control each circuit; Be connected, be subjected to microprocessor control to show direct of travel with microprocessor or stop the cresset of indicating signal; Be connected in microprocessor, be subjected to the electronics display board of microprocessor control with display text, figure or image; Be connected in the video camera of microprocessor, monitoring traffic flow conditions; Be connected in microprocessor, the image data that video camera plucked is compressed, and be sent to the compressor circuit of microprocessor; Be connected in microprocessor, be used to export or the interface is gone in the output of input signal; Be connected in microprocessor, induction traffic flow conditions, and monitoring signal be sent to the magnitude of traffic flow inductor of microprocessor; Going into the interface with output is connected, is launched or the interface is gone in the output that receives signal; By public communication network be connected in traffic control center central traffic computer, the controlling signal of central traffic computer is sent to the microprocessor at each crossing with wireless transmissioning mode, and receive the base station of each crossing signal that microprocessor is sent.