Mode-Switchable Navigation Radio Power Optimization
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Solution Overview
Problem
Navigation radios face challenges in efficiently managing power consumption while maintaining position location service accuracy, as they often operate in modes that require continuous signal acquisition, leading to increased power usage.
Innovation Solution
Implementing a mode-switching test that dynamically optimizes the operation of position location circuitry between receive and sleep modes based on non-timed test conditions, such as signal strength and error thresholds, to reduce power consumption without compromising accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the navigation radio operates in receive mode continuously to maintain position location service accuracy, then the position fix accuracy is improved, but the power consumption increases
Solution Approach 1:
The navigation radio implements dynamic mode switching between receive mode and sleep mode based on operational conditions. The system transitions from static continuous operation to dynamic adaptive operation, adjusting its state according to whether position fixes are currently needed, thereby resolving the contradiction between continuous accuracy and power consumption.
Solution Approach 2:
The system employs periodic sampling of position location conditions to determine when to switch modes. Rather than continuous operation, the radio periodically assesses whether position fixes are required and switches to sleep mode when not needed, implementing periodic action to balance accuracy requirements with power conservation.
2Use of energy by moving object
If the navigation radio switches to sleep mode to reduce power consumption, then the power usage is reduced, but the position fix time increases when switching back to active mode
Solution Approach 1:
The system performs preliminary assessments of position location conditions before switching to sleep mode. By evaluating whether a position fix is currently needed or can be obtained from stored data, the system avoids unnecessary mode switches that would cause delays, thereby reducing the effective position fix time while maintaining power savings.
Solution Approach 2:
The navigation radio implements feedback mechanisms to monitor position fix requirements and operational conditions. This feedback allows the system to make informed decisions about mode switching, ensuring that transitions to and from sleep mode occur only when appropriate, thus minimizing position fix time penalties while maintaining power consumption benefits.
3Use of energy by moving object
If the navigation radio switches between receive and sleep modes based on duty cycle to save power, then the power consumption is reduced, but the reliability of continuous position tracking deteriorates
Solution Approach 1:
The navigation radio employs self-service mechanisms by utilizing stored position data and predictive algorithms to maintain position location service during sleep mode. The system serves itself by determining when continuous tracking is unnecessary based on its own operational context, thereby maintaining reliability while reducing power consumption through intelligent duty cycling.
Solution Approach 2:
The system replaces mechanical continuous operation with intelligent software-based decision making. Instead of relying on hardware to continuously track positions, the patent uses software algorithms to assess tracking needs and control mode transitions, substituting mechanical continuity with intelligent intermittency that maintains reliability while saving power.
Data Source
AI summary
Methods and apparatuses are provided for use with mode switchable navigation radios and the like. The methods and apparatuses may be implemented to selectively switch between certain operating modes based, at least in part, one or more determinations relating to one or more satellite positioning signals and/or space vehicles.