A license plate recognition method, server, parking charging method and system
A license plate recognition and parking charging technology, applied in the field of parking, can solve the problems of license plate recognition data occupying storage space, increasing the workload of license plate recognition, and failing to recognize license plates, etc., so as to reduce the need for storage, reduce workload, and increase detection rate. Effect
Active Publication Date: 2022-06-28
北京筑梦园科技有限公司
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Problems solved by technology
[0003] At present, if only the area on the parking space is monitored, the license plate cannot be recognized due to the angle of the vehicle or the occlusion of the vehicle in front. Therefore, the image acquisition device monitors the vehicle on the parking space with a larger monitoring range than the area on the parking space, so that vehicles passing by near the parking space will also be monitored
The license plate recognition system recognizes all the vehicles that appear in the monitoring range of the image acquisition device. This method not only increases the workload of license plate recognition, but also takes up a lot of storage space for the license plate recognition data.
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[0042] The technical solutions in an embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in an embodiment of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0043] like figure 1 As shown, a license plate recognition method 100 provided by an embodiment of the present invention includes:
[0044] 11. Acquire an image before the vehicle in the parking space enters the parking space within the preset time, and / or acquire the image after the vehicle in the parking space leaves the parking space within the preset time, wherein the image includes the vehicle;
[0045] The above preset time is determined according ...
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The invention relates to a license plate recognition method, a server, a parking charging method and a system. It recognizes the license plate of a vehicle that has been parked in a parking space. Due to occlusion or angle problems, the license plate number of the vehicle parked in the parking space cannot be obtained. The image of the vehicle in the parking space before entering the parking space within the preset time or the image of the vehicle in the parking space after leaving the parking space within the preset time is obtained, and the license plate number of the vehicle is recognized according to the image, so as to realize the detection of the parked vehicles in the parking space. License plate recognition, thereby reducing the workload of license plate recognition and storing necessary license plate recognition data, increasing the detection rate of vehicles. In view of the above reasons, the present invention can be widely used in the parking field.
Description
technical field [0001] The invention relates to the field of parking, in particular to a license plate recognition method, a server, a parking charging method and a system. Background technique [0002] For on-street parking, an image acquisition device is installed near the parking space. The image acquisition device obtains the image of the vehicle in the parking space within a preset time, and recognizes the license plate number of the vehicle, so as to charge the vehicle by time according to the license plate number. [0003] At present, if only the area on the parking space is monitored, the license plate cannot be recognized due to the angle of the vehicle or the obstruction of the vehicle in front. Therefore, the image acquisition device monitors the area of the vehicle on the parking space is larger than the area on the parking space, so that the vehicles passing by the parking space are prevented from passing by. will also be monitored. The license plate recognit...
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IPC IPC(8): G08G1/017G08G1/14G07B15/02
CPCG08G1/0175G08G1/14G07B15/02
Inventor 冯彦刚
Owner 北京筑梦园科技有限公司