Satellite Receiver Dynamics for Positioning Accuracy and Power
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Solution Overview
Problem
Conventional satellite radio wave receiving devices face a trade-off between positioning accuracy and power consumption, as increasing the number of satellites for better accuracy also increases power consumption and the time required for signal capture.
Innovation Solution
A satellite radio wave receiving device that dynamically adjusts its receiving operation based on the number of positioning satellites and calculated positioning accuracy, stopping the operation when a satisfactory position is achieved and continuing it if the accuracy is not met, using a processor to control the receiver and perform calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of positioning satellites is increased to improve positioning accuracy, then positioning accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the receiver operation adjustable between continuous and intermittent modes. The control unit dynamically switches the receiver between active receiving state and stopped state based on whether positioning accuracy requirements are met, optimizing power consumption while maintaining necessary positioning accuracy.
Solution Approach 2:
The patent implements periodic action through intermittent receiving operation. Instead of continuous reception, the receiver operates periodically - activated when positioning accuracy is insufficient and deactivated when accuracy requirements are satisfied - thereby reducing overall power consumption while maintaining positioning functionality.
2Measurement precision
If the number of positioning satellites is increased to improve positioning accuracy, then positioning accuracy is improved, but the time required to capture radio waves increases
Solution Approach 1:
The system dynamically adjusts the receiving operation based on real-time positioning accuracy assessment. When accuracy requirements are satisfied, the receiver is stopped, preventing unnecessary time consumption. When accuracy is insufficient, the receiver is activated to capture additional satellite signals, thus dynamically optimizing the time-accuracy tradeoff.
Solution Approach 2:
The control unit uses feedback from positioning accuracy calculation to control the receiver operation. The positioning accuracy is calculated based on received satellite signals, and this accuracy information feeds back to the control unit which decides whether to continue or stop receiving, creating a closed-loop control system that optimizes both time and accuracy.
3Measurement precision
If continuous receiving operation is performed to ensure positioning accuracy, then positioning accuracy is maintained, but power consumption increases
Solution Approach 1:
The patent applies periodic action by implementing intermittent receiving operation. The receiver is activated periodically only when positioning accuracy requirements are not met, and deactivated when accuracy is sufficient, transforming continuous energy consumption into periodic, optimized energy usage while maintaining positioning accuracy.
Solution Approach 2:
The system performs self-service through automatic control of the receiver operation. The control unit autonomously decides when to activate or deactivate the receiver based on positioning accuracy calculations, eliminating the need for manual intervention and optimizing power consumption automatically based on actual positioning requirements.
Data Source
AI summary
A satellite radio wave receiving device including: one or more processors configured to: cause a receiver to start a receiving operation of receiving radio waves from positioning satellites; perform a current position calculation to calculate a current position based on the radio waves received; calculate a positioning accuracy of the current position; decide whether or not to adopt the current position based on a number of positioning satellites from which the receiver has received radio waves and the positioning accuracy; in response to deciding to adopt the current position, cause the receiver to stop the receiving operation; and in response to deciding to not adopt the current position, cause the receiver to continue the receiving operation of receiving radio waves from the positioning satellites and repeat performance of the current position calculation to calculate current positions based on the radio waves received during the continued receiving operation.