A Huaxing fanless embedded computer application in the electronic police First, the system overview Electronic police system is the use of advanced image processing technology, a new generation of information transmission technology, integrated control technology and intelligent management technology and other modern high-tech means to develop the electronic instrument system , Installed in urban traffic intersections, 24 hours a day to take pictures of motor vehicles that violate the red light. The system consists of controllers, vehicle detectors, and cameras. In order to ensure that the system continuously records the red light passing through intersections and speeding vehicles in an unfavorable and uninterrupted manner, it provides a strong basis for penalizing illegal motor vehicles.
Yahuaxing Technology's fanless embedded computer can be applied to illegal surveillance of traffic light junctions, highway speed detection, security bayonet violation monitoring, real-time detection of road vehicle traffic and other fields.
Second, the system composition
The entire system consists of five units, namely detection unit, image capture unit, camera unit, license plate automatic identification unit and network management unit.
Detection unit: The main use of speed radar detection.
Camera unit: Each lane uses 2 cameras for monitoring, 1 for panoramic shooting, and 1 for close-range shooting, recording the license plate number. Night lighting uses a CAD constant light source.
Image capture unit: This unit consists of a fanless embedded computer and dedicated software. It mainly completes tasks such as image capture, vehicle flow calculation and vehicle speed calculation. The images captured by the system are stored in the site's special computer in the BMP file format. Special software can enlarge the picture, complete the query, statistics, printing and other functions.
License plate recognition unit: With the use of automatic identification software, the vehicle can be checked. When the “blacklist†vehicle appears, the system will immediately send an alarm signal.
Network management unit: Through special software and use remote communication network to control the front-end equipment, record inquiries, data exchange and "blacklist" data refresh. In the case of a broadband communication line such as an optical fiber, the image capture unit can be transplanted to a remote monitoring center
Third, system function
1, vehicle detection records: 24 hours a day to monitor and record the past each motor vehicle models, colors, license plates, and automatic license plate number recognition, database automatically refresh, cycle record.
2. Speed ​​detection function: The system can precisely detect the travel speed of the passing motor vehicles every day. When there is a speeding vehicle, the system will automatically alarm and record the photos together with the speed data into the illegal database.
3, traffic flow detection and statistics: to provide accurate hourly traffic statistics, traffic management departments can provide a histogram-style traffic reports.
4. Blacklist vehicle inspection: The system automatically recognizes the license plate of each vehicle's close-range photos, and compares the recognition result with the blacklist license plate quickly. If there is the same, the system will immediately alarm and display the license plate number and blacklist license plate type.
5. Remote communication and management functions: In the case of remote communication lines, the computer in the monitoring center can control the front-end equipment, update the blacklist database at any time, and transmit the image data and traffic data in the front-end database. Back to the monitoring center.
Fourth, system configuration
1, on the capture host requirements:
Compact, fanless, high-performance embedded computing platform
High stability: In the electronic police system, the intersection work environment is rather harsh, there is good compatibility and expansion capabilities of the equipment, to achieve system video capture, video recording, compression, signal acquisition, control and other full-featured video surveillance, Adapt to the development of intelligent electronic traffic police.
2. The monitoring host adopts YAXING's fanless embedded computer YHX-BOX5307, which has superior performance, stable operation, high performance and no fan embedded host.
YHX-BBOX5307 Specifications:
★ Onboard ULV Intel Core 2 Duo, Intel Core 2 Extreme,
Intel Core 2 Quad with 667/800/1066MHz FSB Series CPU
★Intel 82GM45+ICH9-M
★ Provide exposed 10xCOM (4xRS-232, 1xRS-232/485, 5xRS-232/422/485)
★ Provide exposed 8xUSB
★ HDMI1.3 interface ★ Can expand two 32-bit standard PCI slots ★ Adopt fanless cooling design ★ No connection cable design, the whole internal clean and beautiful ★ Support 480i/p, 576i/p, 720p, 1080i/p
★ Support single power +12V input 5. System evaluation
The YHX-BBOX5307 fanless embedded host is better able to play an advantage in smart electronic police applications, except that it can better adapt to harsh environments. Thanks to its sophisticated PC-based architecture, integration of video surveillance, and secondary development of multi-application and multi-expansion under the X86 open platform, it provides an optimal platform for science and technology officers.