Receiver Power Reduction via Sensor Synchronization
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Solution Overview
Problem
Biological signal measurement devices often consume excessive power due to constant active mode operation, which is not efficient, especially when multiple sensors are involved, leading to increased power consumption and potential interference between signals.
Innovation Solution
A method and apparatus that identify and manage a plurality of sensors to transmit signals within a single active mode period, adjusting transmission times and frequencies to minimize interference and power usage, by generating data to control sensor operations, including setting active and sleep mode periods based on sensor transmission times and types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver operates in constant active mode to receive signals from multiple sensors, then signal reception capability is maintained, but power consumption increases
Solution Approach 1:
The receiver alternates between active mode and sleep mode in periodic cycles. During active mode, it receives signals from sensors; during sleep mode, it consumes minimal power. This periodic operation resolves the contradiction by maintaining signal reception capability when needed while reducing power consumption during idle periods.
Solution Approach 2:
The system performs preliminary synchronization and timing setup so that multiple sensors transmit signals in coordinated time slots. This allows the receiver to enter sleep mode between predetermined transmission periods, knowing exactly when to wake up for active reception, thus optimizing both reliability and power consumption.
2Productivity
If multiple sensors transmit signals simultaneously, then data collection efficiency is improved, but signal interference increases
Solution Approach 1:
The transmission time is segmented into distinct time slots, with each sensor assigned to specific slots. This temporal segmentation allows multiple sensors to transmit data efficiently without simultaneous interference, as each sensor's transmission is divided into non-overlapping intervals.
Solution Approach 2:
The system dynamically adjusts transmission timing and frequency allocation for each sensor based on current operational needs and interference conditions. This dynamic coordination optimizes data collection efficiency while actively managing and preventing signal interference through real-time parameter adjustment.
Data Source
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AI summary
A method of reducing power consumption of a receiver includes identifying a plurality of sensors for transmitting a signal, generating data for controlling a transmission operation of the plurality of sensors, and transmitting the data to the plurality of sensors.