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Embedded super-speed video detection method based on FPGA (Field Programmable Gate Array)

A video detection and embedded technology, applied in traffic control systems, instruments, traffic control systems of road vehicles, etc., can solve problems such as high system power consumption

Inactive Publication Date: 2010-10-06
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortage of large power consumption of the existing intelligent traffic comprehensive video monitoring system, the present invention provides an FPGA-based embedded overspeed video detection method

Method used

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  • Embedded super-speed video detection method based on FPGA (Field Programmable Gate Array)
  • Embedded super-speed video detection method based on FPGA (Field Programmable Gate Array)
  • Embedded super-speed video detection method based on FPGA (Field Programmable Gate Array)

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Embodiment Construction

[0026] refer to Figure 1~4 , the inventive method is made up of multi-channel video camera, FPGA core board, wireless transmission equipment with system: (1) multi-channel video camera adopts Mintron color CCD camera, by being installed on the road both sides fixed frame and with 25 frames / second The video stream image is transmitted to the FPGA core board in the form of PAL analog signal to realize the online image acquisition of the expressway monitoring area; (2) The FPGA core board is the data processing device of the system, because the system must analyze each frame of each video stream The image is analyzed and processed, so the FPGA of Altera company model EP1C12 is selected as the core processor; since the FPGA cannot save the program after power-off, the FPGA program storage after power-off is realized through the flash memory of ALTERA company model EPCS4, when the system is powered on Afterwards, the FPGA automatically writes the program saved in EPCS4 into the FP...

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Abstract

The invention discloses an embedded super-speed video detection method based on an FPGA (Field Programmable Gate Array), aiming to solve the technical problem of high power consumption of the traditional intelligent traffic integrated video monitoring system. The method comprises the following steps of: monitoring an appointed detection region of a highway by using a high-speed clock of 200Mhz through a plurality of CCD (Charge Coupled Device) cameras of a PAL (Programmable Array Logic) system and processing images; carrying out image threshold segmentation by directly using the FPGA, judging whether a vehicle is overspeed or not and determining the position of the vehicle in the images; capturing images containing the type and a license plate number of the overspeed vehicle and exactly measuring the speed of the overspeed vehicle; and sending the information of the obtained speed of the overspeed vehicle, the captured images, the incident time and place, and the like to a radio transmission module and transmitting the information to a monitoring station through a GPRS (General Packet Radio Service) network. In the invention, the FPGA is directly adopted to process all image acquisition and image segmentation calculation, and the quick processing and super-speed detection of multiple paths of images are realized by utilizing the parallel processing capacity of the FPGA to the images; and other core processing units are not needed, thus the system power consumption is reduced.

Description

technical field [0001] The invention relates to an overspeed video detection method, in particular to an FPGA-based embedded overspeed video detection method. Background technique [0002] Speeding is one of the main causes of highway traffic accidents. In order to increase the utilization efficiency of road resources, protect life and property safety, and reduce traffic accidents caused by speeding, the automatic speeding violation detection system must be able to accurately detect speeding vehicles online ; [0003] The traditional vehicle speed detection technology methods include: first, use the buried induction coil to detect whether the vehicle is overspeed, the disadvantage is that the coil must be fixed, and the repair or installation needs to interrupt the traffic; it affects the life of the road surface, and it is easy to be damaged by heavy vehicles and road repairs; The second is to use microwave detection technology to project the detection area on the detectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/054
CPCY02B60/50
Inventor 史忠科付建群
Owner NORTHWESTERN POLYTECHNICAL UNIV
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