Positioning method and device capable of correcting base station positioning
The invention relates to a positioning method and device capable of correcting base station positioning. The device mainly comprises a computation module (a CPU), a storage module, a timing module (a clock), a pedometer, a satellite positioning module (a GPS chip), a base station positioning module...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention relates to a positioning method and device capable of correcting base station positioning. The device mainly comprises a computation module (a CPU), a storage module, a timing module (a clock), a pedometer, a satellite positioning module (a GPS chip), a base station positioning module (a base band chip) and a corresponding circuit and software system. The device can be integrated in objects such as a watch and the position is acquired mainly through satellite positioning and base station positioning. When the device is switched to a base station positioning mode from a satellite positioning mode, and due to the fact that base station positioning is large in error, the positioning position suddenly deviates greatly; when the distance between the final satellite positioning position and the latest base station positioning position is larger than a certain threshold value, the estimated motion distance is computed through data returned by the satellite positioning module and the step number returned by the pedometer, and combined with the motion direction, the estimated position is computed. When the estimated motion distance is far smaller than the distance between the base station positioning position and the satellite positioning position, the estimated position is adopted as the final position, so that the position accuracy is improved. |
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