Global positioning system direction correction device and method

Abstract

This invention discloses a method and setting to proofread the direction of global position system. This invention at least includes the parts as follow: a central processor, a global position signal incepting module, a numeral magnetic drag feeler search and a procedure control module. To put the method into effect, first, take over the global position signal through a global position signal incepting module and pass it to the central processor; the central processor estimates whether the signal is effective or not by the procedure control module; If the conclusion is 'yes', the procedure control module will identify whether the current speed is smaller than the speed limit preinstalled based on the global position signal; If the conclusion is 'yes' as well, a numeral magnetic drag feeler search will detect the current position and get a set of numeral direction signal, then pass it to the central processor; Finally, according to those numeral direction signals, the central processor chalk up the proofreaded information of current direction and send it to display module. This is the way how the invention proofreading the inaccurate direction.

Description

【Technical field】 [0001] The present invention relates to a direction correction device and method, in particular to a direction correction device and method for a global positioning system. 【Background technique】 [0002] At present, the direction judgment of the current position in the navigation software we use is calculated by the offset of the latitude and longitude of two points. The disadvantage of this method is that when the end user uses the navigation software in the following ways, the direction The jump is very strong and erratic: when used while walking, due to the accuracy of the longitude and latitude, it will cause the direction to jump; for some reason, the navigation device is in a stationary state. At this time, the longitude and latitude received twice before and after the latitude and longitude Sometimes the value is different instantaneously, which will cause a direction jump; if the GPS signal cannot be obtained, it will cause a direction jump. [00...

AI Technical Summary

Problems solved by technology

[0002] At present, the direction judgment of the current position in the navigation software we use is calculated by the offset of the latitude and longitude of two points. The disadvantage of this method is that when the end user uses the navigation software in the following ways, the direction The jump is very strong and erratic: when used while walking, due to the accuracy of the longitude and latitude, it will cause the direction to jump; for some reason, the navigation device is in a stationary state. At this time, the longitude and latitude received twice before and after the latitude and longitude Sometimes the value is different instantaneously, which will cause a direction jump; if the GPS signal cannot be obtained, it will cause a direction jump

[0003] In view of this, it is necessary to provide a global positioning system direction correction device and method, using the device and method, in the low speed or stationary state and under the situation that the correct GPS positioning information cannot be obtained, the direction of the inaccurate positioning can be corrected. Make corrections to avoid confusion for end users due to inaccurate directions during use

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