CN201035763Y

CN201035763Y - Intelligent traffic guidance scheduling system

Info

Publication number: CN201035763Y
Application number: CNU2007200934666U
Authority: CN
Inventors: 宋路; 于林韬
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-30
Filing date: 2007-03-30
Publication date: 2008-03-12
Anticipated expiration: 2017-03-30

Abstract

The utility model provides an intelligent traffic control dispatching system. A lens and a CCD camera are fixed on the upper side of a traffic light, in order to collect the vehicle image of the road, the signal input terminal of an image processing module is connected with the signal output terminal of the CCD camera, the collected vehicle image signal is inputted to the image processing module, the signal bus of an embedded computer system is respectively connected with the image processing module and a wireless data transmission module, the processed signal is used for data transmission through the wireless data transmission module, and is wirelessly connected with the traffic light lights, the image processing and a traffic control center, and the earthwork of digging the road for coil arrangement is avoided. The CCD camera can collect the license plate number of the vehicle in breach of a traffic rule to be stored in the embedded computer system for the purpose of the enquiry of the traffic control center. The system has simple installation, convenient maintenance and long service life, the device can move among different locations, and the automatic adjustment is realized according the change of the traffic flow when the signal light is matched, and thereby managing the traffic in a humanization way.

Description

The intelligent transportation command dispatching system

Technical field

The utility model discloses a kind of intelligent transportation command dispatching system, belongs to urban traffic control device technique field.

Background technology

Along with lasting, the high speed development of Chinese national economy, the city size rapid expansion though urban highway traffic facility and handling facility have bigger change, does not catch up with the motor vehicle growth rate.There are big gap in aggregate level and developed country, particularly most of city road network unreasonable structure, and the function path imperfection, roadnet is unsound, and Traffic Management Facilities lack, and management level are not high.Though traffic control center has all been set up in various places, just realized function for monitoring mostly, and be far from bringing into play the effect of control function.Because most of cities exist serious traffic jam and crowding phenomenon, therefore restricted social development greatly, influenced daily life.

Summary of the invention

The utility model provides a kind of intelligent transportation command dispatching system, and perfect existing traffic guidance system function is simple, the shortcoming of real-time difference.

Technical solution of the present utility model is as follows: be made up of camera lens, ccd video camera, image processing module, embedded computer system and wireless data transmission module.It is characterized in that: camera lens and ccd video camera are fixed on the traffic lights upside, gather the vehicle video at this crossing, and image processing module, embedded computer system and wireless data transmission module are placed in the base, on be covered with casing.The signal input part of image processing module is connected by cable on the traffic lights hack lever with the signal output part of ccd video camera, the vehicle image signal of gathering is inputed to image processing module, the signal output part of image processing module is connected with the signal bus of embedded computer system and carries out exchanges data, the signal bus of embedded computer system with and the wireless data transmission module input end be connected, signal after handling is carried out data transmission by wireless data transmission module, the data after handling are sent to traffic control center.

Wherein, image processing module is by latch, bus transceiver, programmable logic device (PLD), trigger, digital to analog converter, bus buffer constitutes, the map interlinking of embedded computer system clocking is as the input end of clock of processing module, image processing module is linked the respective memory of embedded computer system by latch, after cushioning through bus transceiver, the data of embedded computer system and address code link the input end of programmable logic device (PLD), produce decoded signal and give the sheet choosing end and the trigger of latch, trigger produces Data Identification and reset signal, and generation needed time clock of picture number weighted-voltage D/A converter and row, field sync signals etc. are delivered to digital to analog converter and are carried out image data acquiring, and the view data of digital to analog converter collection is delivered to embedded computer system through bus buffer.

The course of work is as follows: when a certain direction was red light, ccd video camera was gathered the vehicle pictures that stops on this crossing at any time, after the image processing module conversion, delivered to embedded computer system.Embedded computer system carries out digital image processing techniques such as two-value conversion, profile identification to be handled the image that collects, thereby obtains this crossing stoppage of vehicle number.The embedded computer system at each crossing carries out data transmission via wireless data transmission module, and the data after handling are sent to data processing centre (DPC).Data processing centre (DPC) carries out overall treatment to these data, thereby obtains the clearance time of certain direction.Again the clearance time data is transmitted back to the embedded computer system at each crossing by wireless data transmission module.The embedded computer system at each crossing is controlled red, the green light at this crossing according to the time data of passing back, realizes according to the let pass purpose of time of flow control.In addition, embedded computer system can also reach traffic control center with field data by wireless data transmission module, realizes each crossing Comprehensive Control.

Good effect of the present utility model is: with effective integrated applying in the entirely electric face traffic control system such as advanced person's infotech, data communication transmission technology, electronic sensor technology, electron controls technology and Computer Processing technology etc., set up a kind of on a large scale in, comprehensive playing a role, in real time, comprehensive traffic transportation management system accurately and efficiently.The utility model volume is little, and is powerful, helps the installation at each crossing and debugging and avoided the problems such as traffic jam that fixedly cause because of the traffic lights time; (traffic lights, Flame Image Process and traffic control center) is connected with wireless sending module between embedded system and each module, exempts road breaking and lays the coil earth work.The CCD camera can be gathered the number-plate number of vehicles peccancy, leaves in the embedded system, is equipped with the traffic control center inquiry.Native system is installed simple, and easy to maintenance, the life-span is long, and equipment can move between the different location, has realized the automatic adjusting of signal lamp timing according to magnitude of traffic flow variation, thus the regulating the traffic of " hommization ".

Description of drawings

Fig. 1 is the utility model structure principle chart;

Fig. 2 is the utility model image processing module circuit theory diagrams.

Embodiment

According to shown in Figure 1, the utility model is made of camera lens, ccd video camera, image processing module, embedded computer system and wireless data transmission module, camera lens and ccd video camera are arranged on the traffic lights upside, gather the automobile image picture that stops on this crossing, be provided with image processing module, embedded computer system and wireless data transmission module in the casing, image processing module is connected by cable on the traffic lights hack lever with ccd video camera, and image processing module, embedded computer system and wireless data transmission module are connected by cable in casing inside.

With reference to Fig. 2, described image processing module is by latch 74LS373, bus transceiver DEI1013, programmable logic device (PLD) EPM7256, trigger AD7142, digital to analog converter AD1871, bus buffer LTC4303 constitutes, the map interlinking of embedded computer system clocking is as the input end of clock of processing module, image processing module is linked the respective memory of embedded computer system by latch 74LS373, after the data of embedded computer system and address code cushion through bus transceiver DEI1013, link the input end of programmable logic device (PLD) EPM7256, produce decoded signal and give sheet choosing end and the trigger AD7142 of latch 74LS373, trigger AD7142 produces Data Identification and reset signal, and generation picture number needed time clock of weighted-voltage D/A converter AD1871 and row, field sync signals etc. are delivered to digital to analog converter AD1871 and are carried out image data acquiring, and the view data that digital to analog converter AD1871 gathers is delivered to embedded computer system through bus buffer LTC4303.

Embedded computer system is the core of total system, is used for the regional coordination control function in system.The utility model adopts each standard crossroad that 4 CCD cameras are installed, the T-shaped road junction is installed 3 CCD cameras and is carried out magnitude of traffic flow detection, behind the traffic flow information that has obtained highway section, the place ahead, with the embedded regulator control system of data back, system according to vehicle flowrate what, in time regulates the proportioning time of this crossing red and green signals lamp after analyzing data message, and have the longest and the shortest time restriction

Claims

1. intelligent transportation command dispatching system, it is characterized in that: by camera lens, ccd video camera, image processing module, embedded computer system and wireless data transmission module are formed, camera lens and ccd video camera are fixed on the traffic lights upside, gather the vehicle video information at this crossing, the signal input part of image processing module is connected by cable on the traffic lights hack lever with the signal output part of ccd video camera, the vehicle image signal of gathering is inputed to image processing module, the signal output part of image processing module is connected with the signal bus of embedded computer system and carries out exchanges data, the signal bus of embedded computer system is connected with the wireless data transmission module input end, signal after handling is carried out data transmission by wireless data transmission module, be wirelessly transmitted to traffic control center.

2. intelligent transportation command dispatching system according to claim 1, it is characterized in that: image processing module is by latch, bus transceiver, programmable logic device (PLD), trigger, digital to analog converter, bus buffer constitutes, the map interlinking of embedded computer system clocking is as the input end of clock of processing module, image processing module is linked the respective memory of embedded computer system by latch, after cushioning through bus transceiver, the data of embedded computer system and address code link the input end of programmable logic device (PLD), produce decoded signal and give the sheet choosing end and the trigger of latch, trigger produces Data Identification and reset signal, and generation needed time clock of picture number weighted-voltage D/A converter and row, field sync signals etc. are delivered to digital to analog converter and are carried out image data acquiring, and the view data of digital to analog converter collection is delivered to embedded computer system through bus buffer.