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Vehicle monitoring and tracking method, system and server

A vehicle monitoring and vehicle tracking technology, which is applied in the field of video monitoring and vehicle video monitoring and tracking, can solve the problems of cost, non-intelligence, and manpower, and achieve the effects of reducing workload, improving intelligence, and improving search accuracy

Inactive Publication Date: 2014-09-24
BEIJING ZHONGXINBINGWU MEDIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a vehicle monitoring and tracking method, system and server, which can solve the problems of consuming a lot of manpower and non-intelligence in traditional traffic video monitoring that completely uses manpower to track vehicles

Method used

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  • Vehicle monitoring and tracking method, system and server
  • Vehicle monitoring and tracking method, system and server
  • Vehicle monitoring and tracking method, system and server

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the vehicle monitoring and tracking method includes the following three parts:

[0048] In the first part 10, after receiving the vehicle tracking request message sent by the terminal device, the server determines the tracking event identifier of this tracking process, sets the reference position coordinates as the geographic location coordinates, and starts the first process and the second process; wherein the first process and the second process are two processes executed in parallel.

[0049] The second part 11, execute the following in the first process:

[0050] Step 1101, search for cameras that are within the reference distance from the reference position coordinates and are in working condition. When no camera is found in the range with the address position coordinates as the center of the circle and the preset radius as the query radius, increase the query radius with a fixed step until Query the working camera, and set the queried ...

Embodiment 2

[0079] The method of embodiment two is basically the same as the method of embodiment one, and the difference between embodiment two and embodiment one is:

[0080] In the first part 10, the vehicle tracking request message also includes the vehicle color; the vehicle color is one of the following colors: black, white, red, yellow, green, blue. In this method, silver and gray are combined into the white category, purple is combined into the red category, and gold is combined into the yellow category.

[0081] Step 1102 obtains the real-time video data collected by the target camera, and extracts the latest frame of image data every time N seconds of video data is received, wherein N is a preset natural number, searches for the target vehicle with the license plate area displayed in the image data, and extracts The feature vectors of the last M characters in the license plate area of ​​the target vehicle, M is an integer greater than 1 and less than 8, and the percentage of sim...

specific Embodiment

[0084] In the traffic monitoring system of this specific embodiment, there are totally 80 cameras at 20 crossings. The identification format of the camera at each intersection includes the intersection number and the letter indicating the camera direction. For example, the camera whose camera direction is north at the third intersection is identified as 3-N.

[0085] The video surveillance personnel found that the illegal vehicle with the license plate of Beijing N12345 did not stop according to the instructions and forcibly drove out during the process of viewing the surveillance video through the computer. Open the activated vehicle monitoring and tracking application software and input Beijing N12345 at the position of the license plate information, and the software will automatically obtain it. The geographic location coordinates of the camera corresponding to the monitoring video currently viewed by the computer, the computer sends a vehicle tracking request message includ...

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Abstract

The invention discloses a vehicle monitoring and tracking method, system and server. The method comprises the steps that the server receives a vehicle tracking request message sent by a terminal device, coordinates of a reference position are set as coordinates of a geographic position in the message, and a first course and a second course are started; a target camera is determined in the first course, a target vehicle is searched for, characteristic vectors of last M characters in a license plate area of the target vehicle are extracted, after it is judged that the percentage of the similarity of the obtained M characteristic vectors and M standard characteristic vectors corresponding to the last M characters in license plate information is larger than a threshold value, image data and the identification of the target camera which the image data belong to are recorded, and prompts are sent out; in the second course, network information sent by the terminal device is monitored, the first course is terminated after a tracking confirmation message is received from the terminal device, the coordinates of the reference position are updated to be the position coordinates in the message, and the first course is restarted. The vehicle monitoring and tracking method, system and server reduce the workload of monitoring personnel and improve the intelligent degree of the monitoring system.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to the technical field of vehicle video monitoring and tracking. Background technique [0002] With the continuous expansion of the city scale, the rapid increase in the number of motor vehicles makes the urban traffic pressure continue to increase. In the existing traffic monitoring system, the observation range of the monitoring system can be expanded through the cooperation of multiple cameras, which is convenient for traffic management personnel to monitor the scene of each monitoring point. But the traditional traffic monitoring system has the problem of low intelligence. The staff selects a target vehicle in the previous camera to start tracking. When the target vehicle drives out of the camera, the staff needs to manually switch to the next camera and re-identify the target vehicle with the naked eye in the new camera. , re-circle to continue tracking. For the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G08G1/017
Inventor 刘丁超
Owner BEIJING ZHONGXINBINGWU MEDIA TECH CO LTD
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