Wireless Sensor Mode Switching for Power Conservation
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Solution Overview
Problem
Existing wearable wireless sensors require user participation to enter low power consumption modes, complicating their use and sacrificing performance for energy savings.
Innovation Solution
A method for automatically switching wireless sensors from normal to low power consumption modes based on the detection of physiological parameters, allowing seamless transitions between operating, standby, and sleep modes without user intervention, using predetermined time periods and sensor conditions to manage power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the wireless sensor uses low power consumption techniques such as reducing sampling rate, reducing sampling accuracy, or switching function modules on/off, then power consumption is reduced, but performance is sacrificed or device complexity increases
Solution Approach 1:
The wireless sensor automatically detects its own usage state through physiological parameter detection and autonomously switches between working mode and power-saving mode without requiring external user intervention or complex control systems, thereby reducing device complexity while achieving power savings
Solution Approach 2:
The sensor dynamically changes operational parameters such as sampling rate and function module activation based on detected usage state, transitioning between high-performance mode and low-power mode to optimize the balance between power consumption and performance
2Use of energy by moving object
If the wireless sensor requires user participation to enter low power consumption mode, then power can be saved, but ease of operation deteriorates
Solution Approach 1:
The sensor system autonomously monitors physiological parameters and automatically transitions to power-saving mode when no physiological signals are detected, eliminating the need for user intervention and maintaining ease of operation while achieving power conservation
Solution Approach 2:
The system continuously monitors physiological parameter detection results and uses this feedback to automatically determine when to switch modes, creating a closed-loop control system that responds to actual usage conditions without requiring user input
3Reliability
If the wireless sensor continuously operates in normal mode, then functionality and reliability are maintained, but power consumption increases
Solution Approach 1:
The sensor dynamically adjusts its operational state based on real-time detection of physiological parameters, switching between full-function working mode and reduced-function power-saving mode to optimize the balance between reliability and power consumption
Solution Approach 2:
The system employs periodic detection of physiological parameters at predetermined time intervals to determine whether to maintain working mode or transition to power-saving mode, enabling intermittent operation that conserves power while ensuring functionality when needed
Data Source
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AI summary
Disclosed in embodiments of the present invention are an operating mode switching method, wireless sensor and system. Said method comprises: determining, once a wireless sensor has entered a normal operating mode, whether physiological parameters are detected by the wireless sensor within a predetermined time period; and when no physiological parameters are detected by the wireless sensor within the predetermined time period, automatically controlling the wireless sensor to switch from the normal operating mode into a power saving mode. The present invention allows the wireless sensor to automatically enter the power saving mode when not being used without any action from a user, and therefore greatly improves the user experience.