Vehicle distance detection method and device and vehicle distance reminding method and device
A detection method and vehicle distance technology, which is applied in the field of vehicle distance detection, vehicle distance detection device, and vehicle distance reminder device, can solve the problems of potential safety hazards, lack of active safety defense functions, high R&D and manufacturing costs, and achieve low-cost Effect
Inactive Publication Date: 2020-10-09
CHINA UNITED NETWORK COMM GRP CO LTD
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[0003] However, because the products of the vehicle active safety defense system are dedicated to the automotive field, the R&D and manufacturing costs are very high, so the vehicles equipped with the vehicle active safety defense system are often luxury models or high-end models with higher prices, ordinary models or low-end models. Often do not have active security defense functions, resulting in security risks
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[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the specific implementation manners of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0056] It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific order or sequence; Moreover, the embodiments and the features in the embodiments in the present disclosure can be combined with each other arbitrarily if there is no conflict.
[0057] In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is ...
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The embodiment of the invention provides a vehicle distance detection method and device and a vehicle distance reminding method and device. The vehicle distance detection method comprises the steps ofobtaining the actual size of a license plate; acquiring depth-of-field data of a license plate of a front vehicle through a depth-of-field camera of the vehicle; obtaining the distance between the depth-of-field camera of the vehicle and the license plate of the front vehicle according to the actual size of the license plate and the depth-of-field data of the license plate of the front vehicle; and obtaining the distance between the vehicle and the front vehicle according to the distance between the depth-of-field camera of the vehicle and the license plate of the front vehicle. According tothe embodiment of the invention, the vehicle does not need to be modified, the accurate actual vehicle distance can be obtained with the lowest cost and the most convenient mode only by means of the depth-of-field camera of the vehicle, and the method is particularly suitable for common vehicle types or medium-low-configuration vehicle types without a vehicle active safety defense system.
Description
technical field [0001] The present disclosure relates to the technical field of safe driving, and in particular to a vehicle distance detection method, a vehicle distance detection device, a vehicle distance reminder method and a vehicle distance reminder device. Background technique [0002] At present, the active safety defense system equipped with a vehicle generally uses the radio radar or lidar carried on the front of the vehicle to complete object detection or lane detection through reflected waves or reflected light. Its function is that when the distance between the vehicle and the vehicle in front is too close, the vehicle will actively issue an alarm and slow down, so as to ensure the driving safety of the driver. [0003] However, because the products of the vehicle active safety defense system are dedicated to the automotive field, the R&D and manufacturing costs are very high, so the vehicles equipped with the vehicle active safety defense system are often luxur...
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IPC IPC(8): B60W40/00B60W50/14B60Q9/00
CPCB60Q9/008B60W40/00B60W50/14B60W2554/802
Inventor 姜琳赵鑫鲁笛
Owner CHINA UNITED NETWORK COMM GRP CO LTD