Method for constructing high-precision map for unmanned driving
A construction method and unmanned driving technology, applied in image data processing, 3D image processing, instruments, etc., can solve problems such as high acquisition cost, hidden dangers, and prone to information security, so as to improve safety, reduce collection cost, The effect of improving accuracy
Inactive Publication Date: 2020-09-04
长沙全时智联科技有限公司
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[0004] In view of the above-mentioned prior art, the purpose of the present invention is to overcome the problems of insufficient accuracy of high-precision maps in the prior art, high acquisition cost, and crowdsourcing acquisition is not suitable for small companies, and it is also prone to hidden dangers of information security, so as to provide a A high-precision map construction method for unmanned driving that is low in acquisition cost, low in production cost, and high in accuracy, and is suitable for companies of any size
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[0030] Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0031] The invention provides a method for constructing a high-precision map for unmanned driving, including:
[0032] Step 1. Plan the drawing area of the high-precision map according to the satellite map information, and after collecting multiple satellite maps of different angles according to the planned drawing area, superimpose and render the multiple satellite maps according to the satellite acquisition angle, and use the three-dimensional coordinate system Establish a datum three-dimensional relationship diagram of the drawing area for the datum;
[0033] Step 2. To draw the travel path of the regional planning data collection vehicle, the data collection vehicle is used to collect data in the loc...
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The invention discloses a method for constructing a high-precision map for unmanned driving. The method comprises the following steps: processing satellite map information; acquiring data; performingcomparison; local drawing; integration. Based on the use of an existing satellite map, a common collection vehicle is used in cooperation to collect data, and the data collection cost is greatly reduced; meanwhile, the accuracy of the finally obtained high-precision map is improved based on data comparison between the two data; moreover, the whole operation process can be independently implementedby any company, and the company is not difficult to undertake the data collection of the pure collection vehicle so that the safety is greatly improved.
Description
technical field [0001] The present invention relates to the field of high-precision map drawing methods, in particular, to a method for constructing high-precision maps for unmanned driving. Background technique [0002] A high-precision map refers to a navigation map with high-resolution and high-abundance elements whose absolute progress and relative accuracy are at the decimeter level. It is mainly used for the understanding and use of driverless car equipment. Lane information to guide the driving of unmanned vehicles. [0003] Existing electronic map data generally use maps collected in conventional ways, and manual follow-up processing is used directly. Not only the collection method itself is affected by the real-time environment, but the overall model itself will lead to problems such as insufficient accuracy; some are Professional collection equipment is used for collection, and such accurate collection equipment is often expensive. When a large number of high-prec...
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IPC IPC(8): G01C21/32G06T15/00
CPCG01C21/32G06T15/00
Inventor 何弢廖文龙何赛谢荣荣赵华卿
Owner 长沙全时智联科技有限公司