Positioning Apparatus Dynamic Accuracy Control
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Solution Overview
Problem
Existing positioning apparatuses face accuracy reduction when using different positioning methods, particularly due to varying holding states of the device, which affect the precision of specifying the present position.
Innovation Solution
A positioning apparatus comprising a first positioning section for receiving satellite signals, a second positioning section for detecting movement and azimuth, a calculating section for determining positioning accuracy, and a control section to adjust measurement operations based on calculated accuracy, allowing for accurate specification of the present position using both GPS and autonomous navigation methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a uniform positioning error is applied for autonomous positioning, then the positioning calculation is simplified, but the positioning accuracy deteriorates because it does not account for different holding states
Solution Approach 1:
The patent applies dynamics by making the positioning error dynamic rather than uniform. The error varies based on the holding state detection results, allowing the system to adapt the error value to different operational conditions. This resolves the contradiction by maintaining simplicity through automated detection while improving accuracy through state-dependent error values.
Solution Approach 2:
The patent changes the positioning error parameter based on the holding state. Instead of using a fixed uniform error, the system adjusts the error parameter according to detected holding states (e.g., pocket, bag, hand-held), thereby improving positioning accuracy without significantly increasing calculation complexity.
2Measurement precision
If GPS positioning is continuously performed, then positioning accuracy is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic action by controlling GPS measurements to occur only at appropriate intervals based on holding state stability. When the holding state is stable, GPS positioning is performed periodically rather than continuously, reducing power consumption while maintaining accuracy when needed.
Solution Approach 2:
The system uses feedback from holding state detection to control GPS measurement operations. The detection results feed back into the control logic that decides when to perform GPS positioning, enabling the system to maintain accuracy while reducing power consumption by avoiding unnecessary measurements during unstable holding states.
3Adaptability or versatility
If autonomous positioning is used when GPS signals are unavailable, then positioning functionality is maintained, but positioning accuracy deteriorates due to uniform error application
Solution Approach 1:
The patent applies local quality by assigning different error characteristics to different holding states. Each holding state (pocket, bag, hand-held, etc.) has its own characteristic error profile, allowing the autonomous positioning to be more accurate by considering the specific local conditions of how the device is being held.
Solution Approach 2:
The system performs self-service by automatically detecting the holding state and selecting appropriate error values without user intervention. This enables the autonomous positioning to adapt to different conditions and maintain higher accuracy while preserving the simplicity of automated operation.
Data Source
AI summary
A positioning apparatus, positioning method and storage medium are described. According to one implementation, a positioning apparatus includes a first positioning section, a second positioning section, a first calculating section, a control section and a specifying section. The first positioning section performs positioning of the positioning apparatus. The second positioning section performs positioning of displacement of the positioning apparatus. The first calculating section calculates a positioning accuracy of displacement. The control section controls measurement operation of the first and the second positioning sections based on the positioning accuracy calculated by the first calculating section. The specifying section specifies a present position of the positioning apparatus based on a measured result of the first and second positioning sections.