Method and device for updating navigation system and navigation map

Abstract

The invention discloses a navigation system and a navigation map updating method and device. The method includes the following steps: collecting video information in front of a vehicle to obtain a video image, and obtaining position information of the vehicle; performing image processing on the video image to identify Traffic signs in the video image, and calculate the position of the identified traffic signs based on the video image and the position information of the vehicle; obtain the external environment information of the vehicle, judge the validity of the identified traffic signs according to the external environment information, and generate corresponding Judgment result: according to the judgment result and the recognized traffic sign and its position, the navigation map is processed accordingly. The method is helpful to improve the navigation data, accelerate the update of the navigation map, make the navigation traffic sign data more accurate and effective, and reduce the burden and time of data collection of the map manufacturer.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a navigation map updating method, a navigation map updating device and a navigation system. Background technique [0002] With the continuous development of science and technology, intelligent vehicle driving has gradually become a reality. The detection, recognition and tracking algorithms based on traffic signs such as traffic lights provide great help for current vehicle driving (including manned and unmanned driving). Specifically, the image information outside the vehicle is collected through the camera, and the geometric information such as the position and shape of the space object can be calculated according to the image information, so as to achieve the purpose of describing and identifying the space object in the environment; the path can be planned through the vehicle navigation software, and Prompt the corresponding information according to the traffic signs on th...

AI Technical Summary

Problems solved by technology

[0003] However, traditional navigation software is generally updated by connecting to devices such as USB, or by connecting to a server through a network to compare versions. If the version of the current car navigation system is better than the version on the map server, it will be upgraded.

Moreover, navigation data needs to be collected. The collection method is usually that map manufacturers build their own collection vehicles to collect road conditions in various districts. However, China has a vast land, so the collection time must be very long and the amount of data is large.

As a result, the update of the navigation map is not real-time, which may lead to deviations between the data of the vehicle navigation map and the actual road conditions

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