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Driving assistance device and method based on high-precision map
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A driving assistance, high-precision technology, applied in measurement devices, instruments, surveying and navigation, etc., can solve problems such as effective decision-making of vehicles in difficult lane-level topology networks
Active Publication Date: 2018-12-14
WUHAN ZHONGHAITING DATA TECH CO LTD
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[0003] Embodiments of the present invention at least provide a high-precision map-based driving assistance method, which can solve the problem in the prior art that it is difficult for vehicles to make effective decisions based on lane-level topological networks under complex road conditions.
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Embodiment 1
[0057] This embodiment discloses a driving assistance method based on a high-precision map, which can extract the lane information of the sideline of the lane in the high-precision map and perform grid division on the areas of different lane-changing rules involved in the lane according to the lane information. Path provides a valid reference.
[0058] In order to achieve the above effects, the method of this embodiment includes:
[0059] Step100. Load basic geographic information into the map module of the geographic information system, and establish a high-precision map including lane information.
[0060] Step200, determine the real position of the vehicle through the absolute positioning information of the vehicle-mounted GPS, and match the current position of the vehicle in the high-precision map according to the real position.
[0061]Step300. After drawing up the target position to be reached by the vehicle, extract all the point information between the current positio...
Embodiment 2
[0087] This embodiment discloses a high-precision map-based driving assistance method, the steps of which include:
[0088] Step100, preload basic geographic information and build high-precision maps;
[0089] Step200, extracting all lane information of the road from the high-precision map;
[0090] Step300, extracting the lane sidelines of all lanes according to the lane information, the lane sidelines include a dotted line segment, a solidline segment, a combination of a dotted line segment and a solid line segment;
[0091] Step400, according to dashed line end, solid line section divide lane into the driving grid area that comprises different lane changing rules;
[0092] Step500. Match the current position of the vehicle on the high-precision map through the positioning module, and plan the driving path of the vehicle according to the current position, the target position and the driving grid area.
[0093] Through the above solution, the difference between this embodi...
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Abstract
The invention discloses a driving assistance device and method based on a high-precision map. The method comprises the following steps: loading basic geographic information and establishing the high-precision map; matching the current location of a vehicle in the high-precision map through a positioning module; acquiring lane information between the current location and a proposed target locationat the high-precision map; at least extracting the lane lines of the lane located by the vehicle and the adjacent line according to the lane information, wherein the lane lines comprise dotted line segments and / or full line segments; dividing the lane into at least one driving lattice region including different lane change rules according to the dotted line segments and / or full line segments; planning the driving path of the vehicle between the current location and the target location according to one driving lattice region or the combination of at least two driving lattice regions. The lane information of the lane lines can be extracted in the high-precision map, and the lattice division can be performed on the region referring to different lane change rules of the lane, thereby providingeffective reference for the driving path of the vehicle.
Description
technical field [0001] The present invention relates to the field of active safety and automatic driving, in particular to a high-precision map-based driving assistance device and method. Background technique [0002] An autonomous driving system uses a lane-level topology network to provide a reference for driving strategies. In complex road conditions such as long lanes and alternating dashed and solid lines on the side of the lane, it is difficult for vehicles to make effective decisions based solely on the lane-level topological network. Contents of the invention [0003] Embodiments of the present invention at least provide a high-precision map-based driving assistance method, which can solve the problem in the prior art that it is difficult for vehicles to make effective decisions based on lane-level topological networks under complex road conditions. [0004] The specific implementation of the above embodiment is as follows. [0005] The methods include: [0006]...
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