Method, device and system for vehicular navigation and location and storage medium

Abstract

The invention discloses a method, a device and a system for vehicular navigation and location and a storage medium. The altitude measurement method locates a current position of a vehicle by acquiringan altitude value of the vehicle at an initial position, acquiring an altitude change value from the initial position to the current position to which the vehicle drives from the initial position, and acquiring an altitude value at the current position according to the altitude value of the vehicle at the initial position and the altitude change value from the initial position to the current position. According to the scheme, environmental parameters such as air pressure are not required in acquisition of the altitude value at the current position, so that the interference from external environmental factors is not introduced in an altitude measurement process, thereby improving location accuracy of the vehicle.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a vehicle navigation and positioning method, device, system and storage medium. Background technique [0002] Most of the existing electronic devices judge the altitude change through the Global Positioning System (Global Positioning System, GPS). Generally, the error of the GPS in judging the altitude change is more than tens of meters. However, for electronic devices that require high positioning accuracy, an error of tens of meters or even hundreds of meters is unacceptable. There is a way to know whether the vehicle is on the elevated road or in the tunnel. [0003] The currently existing methods of measuring altitude all detect the detection information through a sensor at or close to the position, and then use auxiliary equipment to estimate the altitude data corresponding to the detection information, such as a barometer, but this use The method for calculati...

AI Technical Summary

Problems solved by technology

However, for electronic devices that require high positioning accuracy, an error of tens of meters or even hundreds of meters is unacceptable. Ways to know whether the vehicle is on the elevated or in the tunnel

[0003] The currently existing methods of measuring altitude all detect the detection information through a sensor at or close to the position, and then use auxiliary equipment to estimate the altitude data corresponding to the detection information, such as a barometer, but this use The method of calculating the altitude of the auxiliary equipment will be affected by the environment or weather, and is limited by the geographical environment and equipment layout

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