Travelling track construction system and method

A technology of driving trajectory and construction method, which is applied in the field of driving trajectory construction system of autonomous vehicles, can solve problems such as disordered routes, dense routes, and deviation of driving trajectory angles, so as to reduce calculation costs, meet high-precision maps, and avoid deviation of route angles. and derailment effects

Active Publication Date: 2019-05-10
UISEE SHANGHAI AUTOMOTIVE TECH LTD
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AI Technical Summary

Problems solved by technology

[0004] Based on the above problems, the present invention proposes a new technical solution, which can solve the technical problems of angular deviation and route disorder caused by too dense data collection

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  • Travelling track construction system and method
  • Travelling track construction system and method
  • Travelling track construction system and method

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Embodiment Construction

[0034] This application discloses a system and method for constructing an automatic driving trajectory. According to the pre-collected trajectory data, on the basis of ensuring the key data in the whole, the data scale is reduced, the data structure is optimized, and an efficient and reliable one is reconstructed. Map of driving trajectories used by autonomous vehicles. For example, the system first obtains the trajectory points of the autonomous driving vehicle, and then removes those points that are not critical to determine the shape of the driving trajectory (such as points in a straight line or a driving path that is close to a straight line) from the trajectory points, and the remaining The key points for determining the shape of the driving trajectory are connected sequentially with straight lines to complete the construction and description of the driving trajectory. The systems and methods described above can also be applied to the construction and description of othe...

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Abstract

The invention provides a travelling track construction method, a travelling track construction device, a computer system and a readable storage medium, wherein the method comprises the steps that: electronic equipment obtains original track data; the electronic equipment performs clustering according to the position data and the serial number of each position point in a position point sequence inthe original track data, so that multiple position point sub-sets are obtained; for each position point sub-set, a part of position points in the position point sub-set are selected as characteristicposition points; the start point and the end point of the position point sub-set are determined; according to the start point and the end point of each position point sub-set, a representative point universal set is determined; position points, which are positioned or roughly positioned on a linear track in the representative point universal set, are determined; a key point set is determined according to the representative point universal set and the position points, which are positioned or roughly positioned on the linear track; and the travelling track is constructed according to the key point set. By means of the technical scheme in the invention, the travelling track can be constructed more simply and accurately.

Description

technical field [0001] The present application relates to the technical field of automatic driving, in particular, to a system and method for constructing a driving trajectory of an automatic driving vehicle. Background technique [0002] In the automatic driving system, accurate driving trajectory is an important basis for guiding the vehicle forward. The generation of driving trajectory depends on the pre-collection of data collection equipment, such as driving in a designated area through a data collection vehicle, and pre-collecting the location information of the collection vehicle through sensors on the data collection vehicle (such as GPS equipment, laser radar, camera, etc.). Then, the feasible driving trajectory in the designated area is constructed through the data reconstruction method. However, due to the limitation of the characteristics of the sensor, the collected data may have problems such as redundancy. For example, the collection of GPS signal points is t...

Claims

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Application Information

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IPC IPC(8): G05D1/02
Inventor 张小卉齐歆瑜
Owner UISEE SHANGHAI AUTOMOTIVE TECH LTD
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