Battery-Aware Wireless Mode Switching for Power Management
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Solution Overview
Problem
Battery-powered multi-mode wireless communication devices face challenges in efficiently switching between communication modes based on battery power levels and cost of service, leading to potential disruptions during calls and increased power consumption.
Innovation Solution
The device automatically or userprompted switches from a cellular communication protocol to a WIFI protocol when the battery power level drops to a predetermined threshold, while maintaining emergency calls on the original protocol, and can hand off functions to external devices to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device operates on cellular communication protocol, then communication coverage and reliability are improved, but power consumption increases
Solution Approach 1:
The system dynamically changes operational parameters by switching between cellular and WIFI communication modes based on battery power level thresholds. When battery level is above the threshold, cellular mode provides reliable communication; when below the threshold, the system transitions to WIFI mode to reduce power consumption while maintaining communication functionality.
2Use of energy by moving object
If the device switches communication modes automatically, then power consumption is reduced, but communication continuity may be disrupted
Solution Approach 1:
The system performs preliminary actions by monitoring battery power levels continuously and proactively switching from cellular to WIFI mode before the battery is fully depleted. This advance switching prevents communication disruptions by ensuring the transition occurs while sufficient power remains to maintain stable connection on the alternative network.
Solution Approach 2:
The communication mode selection is made dynamic rather than static, allowing the system to adapt between cellular and WIFI modes based on real-time battery conditions. This dynamic switching optimizes the balance between power consumption and communication stability by selecting the appropriate mode for each operational phase.
3Reliability
If the device uses cellular network for communication, then communication coverage is improved, but operational cost increases
Solution Approach 1:
The system changes the communication network parameter based on operational context, using cellular networks when full coverage and reliability are required, and switching to WIFI networks when lower operational costs are prioritized. This parameter switching allows the device to leverage the cost advantages of WIFI while maintaining the coverage advantages of cellular networks when necessary.
Data Source
AI summary
A battery-powered wireless communication device monitors battery power level and switches from operation pursuant to a first wireless communication protocol to a second communication protocol in the event that the battery power level has dropped to a predetermined threshold while operating in idle mode or in active mode.