A method and system for rapidly collecting and updating map marker point information

Abstract

The invention relates to a method for quickly acquiring and updating mark point information of a micro road network map. The method comprises the following steps of: acquiring information data of micro road network road mark points by using a bicycle-mounted portable intelligent terminal or a moped-mounted portable intelligent terminal with a distance measuring device and at least two existing mark points of a micro road network. According to the method disclosed by the invention, pre-storage judgment and information acquisition of the mark points can be quickly carried out in batches, the mark point information can be ensured to have higher accuracy without professional position positioning, even accurate positioning can be performed on the map on the premise of not acquiring position data such as GPS (global positioning system) of the mark point, and the labor intensity of data acquisition is reduced, so that mark point updating data required by the high-precision map is efficientlyand accurately provided at low cost.

Description

technical field [0001] The invention relates to the technical field of map data collection, in particular to a method and system for collecting and updating road marking point data. Background technique [0002] At present, with the popularity of electronic maps, more and more people use electronic maps to plan routes. Among them, the marked points on the map (distributed units on both sides of the road, also known as hot spots, including eating, living, traveling and shopping, such as restaurants, hotels, supermarkets, gas stations, etc.) are important components of electronic maps , the change of the marker points often makes the map information inaccurate and needs to be updated. [0003] However, the road information of the electronic map is often relatively fixed and does not need to be updated frequently; while the marking points on both sides of the road often change frequently, especially the marking points of the micro-road network as non-arterial roads change freq...

AI Technical Summary

Problems solved by technology

[0009] However, this invention relies on the program to judge the operation throughout the process, and needs to verify whether the unit points exist in the server one by one, which is not efficient, accurate enough, and cannot be processed quickly.

Especially when faced with many marked points on both sides of the road, the terminal program cannot quickly obtain which locations have not been collected

In addition, positioning according to the positioning position and orientation angle not only cannot accurately obtain unit point information such as pedestrian streets with dense shops, but also requires more professional orientation angle measurement or position positioning to ensure high accuracy of information. Therefore, the The invention cannot guarantee the efficiency and accuracy of information collection, especially in the case of batch operations, it is only suitable for collecting less unit point information with low density

[0010] Therefore, for the marker unit, one of the key elements of the electronic map, the existing technology is often unable to quickly obtain and efficiently collect change information in batches