Correcting method and device of GPS latitude-longitude coordinates and mobile sports equipment

Abstract

The invention discloses a correcting method and device of GPS latitude-longitude coordinates and mobile sports equipment. The method comprises the steps of obtaining the GPS latitude-longitude coordinates of positions which are obtained by a GPS module and correspond to all acquiring moments; judging whether the distance between a current position and a first position is larger than a preset threshold value or not according to the GPS latitude-longitude coordinates of the current position and the GPS latitude-longitude coordinates of the first position corresponding to the last acquiring moment adjacent to the current position; if yes, adopting the obtained position which is acquired by the GPS module and corresponds to the next acquiring moment adjacent to the current position as a secondposition; selecting a third position on an isogonal line of a geometric angle composed of the current position, the first position and the second position; adopting the GPS latitude-longitude coordinates of the third position as the corrected GPS latitude-longitude coordinates of the current position. As can be seen, the method and device can reduce the offset of the GPS latitude-longitude coordinates, improve the precision of GPS locating and are universal.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a calibration method, device and mobile sports equipment of GPS latitude and longitude coordinates. Background technique [0002] Most of the existing mobile sports devices are configured with a Global Positioning System (Global Positioning System, GPS) module to meet the needs of users. However, the GPS module on the mobile sports device will be affected by factors such as weather and surrounding buildings, which will cause the collected GPS latitude and longitude coordinates to drift to a certain extent, causing positioning deviation and misleading users. [0003] In the prior art, in order to solve the above problems, on the one hand, the hardware of the GPS module itself is calibrated, but the error sources of the collected data are mostly affected by external factors, and accurate calibration cannot be performed from the hardware. On the other hand, it is to solve the abo...

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Problems solved by technology

[0004] In view of the fact that the calibration in the prior art does not have universal applicability and cannot be accurately calibrated, a calibration method, device and mobile sports equipment for GPS latitude and longitude coordinates of the present invention are proposed in order to solve or at least partially solve the above problems

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