Highway video monitoring requirements and application difficulties (1)

ETC (electronic toll collection system): from concept to the proposed ETC now have at least 6, 7 years, or even longer.

The technical reserves, national standards are already mature, the equipment for the determination of existing standards, so ETC are fully under way. With Freeway traffic increases, the application is a general trend ETC. Electronic toll system will be in charge of the national electronic networking system. Bayonet system (and ETC with bayonet system, supporting high-definition bayonet system + ETC) in some sections have also been used.

ETC main equipment on-board electronic labels and lane microwave antenna, which tag is installed in the vehicle windscreen with disassembly, microwave antennas installed in toll station electronic toll collection lanes on the front of the shelf, when vehicular toll lane microwave antenna effective range, that is, information exchange, read vehicle information, and from its stored value card is deducted when the time vehicle toll lane, after the success of the transaction is automatically raised Rails.

　　

Interval velocity: "highway interval velocity measurement system" installed on the freeway overpass or inverted L Rod testing equipment, the use of vehicle license plate recognition technology that continuously captures and identify two highway section on vehicular traffic information, such as vehicle licence number, through time, vehicle features and panoramic pictures, etc., by calculating the same vehicle in the same direction of the two sections of the passage of time, to determine whether the speed of the vehicle.

At the same time breaking vehicle data and picture information sent via the early warning system on civilian police in the vicinity of the site, and publish information on the screen to inform on illegal vehicles and warning more vehicles. The system calculates all the illegal vehicles and related information in violation of the picture will be used as a source to illegal treatment system for further post-processing. Range of speed measurement system consists of a front-end monitoring unit, communication transmission unit, illegal information publish screen system (optional) and the background processing system is composed of four parts. Shenzhen ruko digital co., Ltd. General Manager Xie Guoyong explained: "before the fixed capture, digital capture, you can only do this fixed-speed capture, unable to do sections speed. Now uses license plate recognition system, by calculating the two points of time, in two point between interval velocity, thus achieving full speed ".

Event detection analysis: freeway sections with camera surveillance, monitoring personnel not running may long uninterrupted staring at the screen monitor.

And if you rely on playback find cameras recorded image, will result in event processing latency. And now, you can use a high-tech means to implement event handling real-time analysis. Use the original camera monitoring freeway system, integrated incident detection and analysis system, to quickly identify if the vehicle retrograde, pedestrians cross the road, vehicles blocking, fire, pavement loose barrier, cart unattended in the highway, and other anomalies, and immediately alert or system to automatically switch to the live video image, ensure that the control room in the first instance found that the warning and accurate positioning, and then by the command center of the informed on duty in the service area, toll or pavement civilian police and rescue vehicle promptly rushed to the scene to eliminate traffic hazards.

Incident detection and analysis system played a video of advanced technology.

Due to the complexity of the highway traffic currently has just published an analysis of the incident detection system has not yet achieved the desired results, mainly in the false alarm, for example, the vehicle's normal variable road also may cause false alarms, but at the same time, some genuine accident event analysis and for the time being you can not do it, so the highway intelligent video analysis technology needs to be further improved. However, intelligent video analysis technology is the Expressway in the direction of the application, monitoring and analysis of future events like the police, all traffic violations can be properly identified and alarm.

Night vision system: it is a lot of highway operations management departments, the lack of effective nocturnal Highway monitoring means.

In the ordinary way surveillance cameras at night blind spot monitoring exists (or is in a paralyzed State), the monitoring results can only see traffic lights, traffic of blurred images. Specific to the vehicle status, car licence, are difficult to monitor. To this end, the laser night vision systems, infrared night vision camera, and so have power monitoring Highway at night. Tianjin world weiye digital traffic industry Center Manager Coke Wei said: "laser night vision system for night surveillance show as daylight-like effect, long range laser night vision system is applied to night monitoring distances up to 500 m, 1000m and 1500m, 2000 m, 5000 m, and other sections of the motorway no longer ' dark ' overnight, in night vision effect, economy, life time, distance, hidden, and other aspects are better than the now common night vision technology".

Vehicle license plate recognition, license plate recognition is to be able to directly identify the vehicle's computer equipment, the recognition results including vehicle of all Chinese characters, letters, numbers, colors, image licensing, licence, etc.

Vehicle license plate recognition, is to first identify the vehicle, the vehicle does not need to be identified, you can actively participate in all common vehicle identification and management. Automatic license plate recognition system applied on the highway, on the improvement of the toll collection system, eliminate vulnerabilities, reduce fees and charges for personnel's labor intensity, enhance the level of integrated management fees and service standards, and played a vital role.

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