Mobile navigation device

A technology of navigation device and movement amount, which is applied in the direction of measuring device, satellite radio beacon positioning system, instrument, etc., and can solve problems such as the bottleneck of power consumption of mobile devices
CN102169182AActive Publication Date: 2011-08-31HTC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HTC CORP
Publication Date
2011-08-31

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Abstract

The invention relates to a mobile navigation device, which alternately operates in first and second modes. In the first mode, a satellite positioning module is started up, a dead reckoning module is closed, and a processor calculates a position coordinate according to a satellite navigation signal. In the second mode, the satellite positioning module is closed, the dead reckoning module is started up, and the processor updates the position coordinate according to movement and rotation.
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Description

Technical field

[0001] The present invention relates to a mobile navigation device, in particular to a navigation and positioning method combining dead reckoning (DR) and a global positioning system (GPS) at the same time. Background technique

[0002] The technology that uses artificial satellites distributed in the sky to provide ground positioning signals, such as the GPS system, is a free and open architecture. With the advancement of GPS receivers, mobile navigation devices have become a common application for both hands and one phone. For example, mobile phones, personal digital assistants, and car computers can be integrated with GPS receivers and navigation software to become mobile navigation devices.

[0003] However, among these mobile applications, the power consumption of mobile devices has always been a technical bottleneck. During the navigation process, the GPS receiver must be kept on and continuously track the navigation signals of the artificial satellites in t...

Claims

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