Wireless Sensor Analog Detector Signal Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Smart environments face challenges in detecting and processing sensory data from distributed wireless sensor networks, particularly in terms of accuracy, response time, and range, due to limitations in wireless sensor technology, including signal degradation through obstructions and varying frequency regulations.
Innovation Solution
A wireless sensing system comprising a control processor, transmitter, receive antenna, and receiver, which facilitates the transmission and reception of coded signals, with a down converter for signal strength measurement and a detector for pattern recognition, enabling accurate and timely data processing and decision-making.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wireless sensors transmit data frequently to ensure accurate measurement, then measurement accuracy is improved, but battery power is consumed faster
Solution Approach 1:
The wireless sensor system implements periodic transmission of measurement data at optimized intervals. The controller determines optimal transmission timing based on measurement stability and battery status, transmitting data periodically rather than continuously. This reduces battery consumption while maintaining measurement accuracy by sending updates only when necessary.
2Measurement precision
If high operating frequency is used to improve measurement accuracy, then measurement accuracy is improved, but operation range is reduced
Solution Approach 1:
The wireless sensor system dynamically adjusts operating frequency based on environmental conditions and measurement requirements. The controller selects from multiple frequency options, using higher frequencies when measurement accuracy is prioritized and lower frequencies when extended range is needed. This parameter adaptation resolves the contradiction by allowing the system to optimize for different operational contexts.
3Speed
If signal transmission frequency is increased to improve response time, then response time is improved, but signal degradation through obstructions worsens
Solution Approach 1:
The wireless sensor system implements dynamic frequency and transmission power adjustment based on real-time signal quality assessment. When obstructions are detected or signal degradation is measured, the controller automatically adapts transmission parameters to maintain reliability while preserving response time performance.
Data Source
AI summary
A wireless sensor with analog detector for monitoring the environment surrounding the sensor. The wireless sensor with analog detector comprises a wireless transmitter, a wireless receiver with a quadrature down converter, bank of in phase and quadrature phase constellation level slicers and in phase and quadrature phase symbol generators. A control processor utilizes the received information, received signal strength and timing information to estimate and calculate various environmental parameters which can be used to activate different devices.