Battery Life Management via Positioning System Coverage Map
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Solution Overview
Problem
Mobile communications devices rapidly deplete battery energy in areas without network service due to repeated energy-consuming network connection attempts, posing a challenge for extending battery life.
Innovation Solution
The device includes a positioning system and memory that store areas with no network coverage, preventing wireless transceivers from attempting connections when within these areas, and periodically updating this map to verify coverage, while ensuring battery power is sufficient for connection attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless transceiver continuously attempts to connect to the wireless network, then network connectivity is maintained, but battery energy is rapidly depleted
Solution Approach 1:
The device performs preliminary actions by determining its position using the positioning system before attempting network connection. The device checks whether it is located within a no-service area in advance, and only attempts connection if the position is outside such areas. This preliminary position check prevents unnecessary connection attempts in areas where network service is unavailable, thereby reducing energy consumption while maintaining connectivity where possible.
2Duration of action of moving object
If the device prevents network connection attempts in no-service areas, then battery life is extended, but network connectivity is lost
Solution Approach 1:
The system implements feedback by continuously monitoring the device's position through the positioning system and comparing it against stored no-service area information. Based on this feedback, the device dynamically decides whether to attempt network connection or conserve battery energy. The feedback loop ensures that connection attempts are made only when necessary (when outside no-service areas), thereby extending battery life while maintaining connectivity when available.
3Ease of operation
If the positioning system continuously monitors position to determine coverage areas, then appropriate connection decisions are made, but energy consumption increases
Solution Approach 1:
The positioning system operates periodically rather than continuously, determining the device's position at intervals sufficient to detect changes in coverage status. This periodic position determination is enough to accurately assess whether the device is entering or exiting no-service areas, while significantly reducing energy consumption compared to continuous monitoring. The periodic action maintains connection decision accuracy while minimizing the energy burden on the battery.
Data Source
AI summary
A device includes a memory, a wireless transceiver and a positioning system. The memory stores a first area in which a wireless network lacks coverage. The wireless transceiver is adapted to communicate with the wireless network. The positioning system determines a position of the device to determine whether the device is located within the first area. The wireless transceiver does not attempt to communicate with the wireless network if the positioning system determines that the device is located within the first area.