Motion-Activated Wireless Communication Circuit for Low-Power Access
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Solution Overview
Problem
Wireless communications systems face limitations due to power use constraints, particularly in applications requiring battery power, where high power requirements restrict the complexity and function of circuit configurations, especially in passive access circuits that need to be actively powered for communication.
Innovation Solution
A portable motion-sensing circuit and communication circuit that operate in active and inactive modes, where the communication circuit consumes less power in the inactive mode and only activates for access authentication communications upon detecting user movement, allowing for efficient power management and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication circuit operates in active mode to enable access authentication communications, then communication functionality is improved, but power consumption increases
Solution Approach 1:
The communication circuit dynamically switches between active and inactive modes based on motion detection. When the motion-sensing circuit detects user movement, the communication circuit transitions to active mode to enable access authentication. When no motion is detected, it transitions to inactive mode to conserve power, thus adapting the system state to operational requirements.
Solution Approach 2:
The system employs periodic motion detection to trigger communication operations. The motion-sensing circuit continuously monitors for user movement, and only when motion is detected does the communication circuit activate to perform authentication. This periodic activation based on motion events reduces unnecessary power consumption while maintaining communication functionality when needed.
2Use of energy by moving object
If the communication circuit operates in inactive mode to reduce power consumption, then power usage is improved, but communication capability deteriorates
Solution Approach 1:
The motion-sensing circuit performs preliminary detection of user movement before the communication circuit activates. This preliminary action ensures that the communication circuit only wakes up when actually needed, preventing premature activation and unnecessary power consumption while maintaining readiness to communicate when motion is detected.
Solution Approach 2:
The motion-sensing circuit acts as an intermediary between the user's physical movement and the communication circuit's activation. It monitors motion conditions and controls the transition of the communication circuit between inactive and active modes, ensuring that communication capability is maintained when needed while minimizing power consumption during idle periods.
3Reliability
If complex circuit configurations are used to enhance communication functionality, then communication capability is improved, but power requirements increase
Solution Approach 1:
The complex communication circuit is designed to operate dynamically, switching between active and inactive states. When in inactive mode, the circuit consumes minimal power despite its complexity. When motion is detected and the circuit transitions to active mode, it fully utilizes its complex configuration to provide robust communication functionality, thus achieving high capability only when power is actually being consumed.
Data Source
AI summary
In accordance with one or more example embodiments, wireless communications are facilitated based on user-motion. A portable motion-sensing circuit, carried by a user, indicates that motion is sensed in response to detecting whether the user has been moving for a predetermined period of time. A communication circuit operates in active mode and inactive modes respectively consuming higher and lower power, permits or inhibits access authentication communications in the active and inactive modes, and operates in the active mode in response to the motion being sensed at the motion-sensing circuit.