GPS Positioning Device Power Management via Planned Point Control
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Solution Overview
Problem
Existing GPS positioning technologies consume a significant amount of power, making them inefficient for power-saving applications, especially when precise positioning is required at specific points.
Innovation Solution
A positioning device that combines GPS and autonomous navigation sensors to efficiently manage power consumption by starting up the GPS unit only when necessary, using a control unit to register planned positioning points and control the timing of GPS operations based on estimated moving times and start-up times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS positioning is continuously performed, then positioning accuracy is maintained, but power consumption increases significantly
Solution Approach 1:
The GPS positioning unit operates periodically rather than continuously. The control unit determines specific positioning timing based on the relationship between movement speed and distance to the destination, activating GPS only when needed and keeping it inactive otherwise, thereby reducing power consumption while maintaining positioning accuracy at critical moments
Solution Approach 2:
The system preliminarily determines positioning timing by calculating the relationship between movement speed and distance to the destination before actually performing GPS positioning. This preliminary assessment allows the system to prepare for positioning only when necessary conditions are met, avoiding unnecessary GPS operations and saving power
2Use of energy by moving object
If GPS positioning is performed only at specific points, then power is saved, but positioning accuracy may be compromised
Solution Approach 1:
The control unit continuously monitors movement speed and distance to the destination, using this feedback information to dynamically determine when GPS positioning should be activated. This feedback mechanism ensures positioning occurs at appropriate moments based on real-time movement conditions, maintaining accuracy while saving power
Solution Approach 2:
The positioning timing is dynamically adjusted based on the relationship between movement speed and distance to the destination. Rather than using fixed timing intervals, the system adapts positioning moments to actual movement conditions, ensuring accurate positioning when it matters most while minimizing GPS operation time
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for accurate positioning at planned points while minimizing power usage by limiting GPS operation to only when required, effectively saving power and improving usability.
Implementation Method 1
a positioning unit configured to receive a signal transmitted from a positioning satellite and measure a position of the positioning device
Data Source
AI summary
The positioning device includes: a GPS processing unit configured to receive a signal from a GPS satellite and measure a position where the positioning device is located; a data storage unit configured to register a planned positioning point where a position is measured; and a GPS control unit configured to control timing to start up the GPS processing unit such that the GPS processing unit be ready in time for measurement at the registered planned positioning point.