Altitude Calculation System and Altitude Calculation Method

Abstract

The invention discloses an altitude calculating system and an altitude calculating method. The altitude calculating method comprises the following steps: acquiring an environment temperature value and an environment air pressure value by the altitude calculating system; calculating a sensed height value; acquiring satellite positioning data when the signal strength of a detected satellite signal is higher than a signal strength critical value, and correcting a positioning height value of the satellite positioning data according to the sensed height value to obtain a corrected height value; when the signal strength of the detected satellite signal is lower than the signal strength critical value, calculating the corrected height value according to the sensed height value; and outputting the corrected height value. According to the altitude calculating system and the altitude calculating method, even if the satellite signal is poor or interrupted, a correct altitude can be provided; and the obtained altitude can be automatically corrected.

Description

technical field [0001] The invention relates to a calculation system and a calculation method, in particular to a calculation system and a calculation method for altitude. Background technique [0002] With the rapid development of vehicle data communication systems, various driving services based on vehicle location (such as driving navigation or driving track recording) have become quite popular. Moreover, in addition to plane position information (such as latitude and longitude position), the existing vehicle data communication system can also obtain the altitude of the vehicle's location, and provide three-dimensional driving information (such as three-dimensional position information combined with latitude and longitude position and altitude). Achieve more accurate driving applications. [0003] Taking the application of three-dimensional driving information in a navigation system as an example, when a vehicle is driving on a section where elevated roads and flat roads...

AI Technical Summary

Problems solved by technology

The above situation will cause inconvenience to drivers, and even incorrect navigation information based on incorrect altitude may endanger driving safety

[0007] Therefore, the currently known altitude calculation schemes have the above-mentioned problems that the altitude cannot be obtained when the satellite signal is poor or interrupted, and the problem that the obtained altitude is not verified or corrected will easily lead to incorrect navigation information. More efficient solutions are proposed

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