Sensor-Actuator Network Control for Zone-Based Temperature Actuation
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Solution Overview
Problem
Current wireless sensor/actuator networks (WSAN) face inefficiencies in energy management and comfort control due to uniform actuation of entire spaces, leading to unnecessary energy waste and discomfort, as they lack precise control over actuator activation based on changing environmental conditions and sensor data.
Innovation Solution
A method and system that utilize an A-S matrix to select cooperative groups of actuators and sensors, determining actuation values based on relationship strength, allowing for adaptive and efficient actuation by adjusting report periods and updating matrices dynamically in response to sensed data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uniform actuation of entire spaces is used based on temperature sensor reports, then temperature control coverage is improved, but energy waste increases
Solution Approach 1:
The system divides the internal space into multiple zones with separate VAV apparatuses, allowing selective actuation of only those apparatuses whose zones require temperature adjustment based on local sensor data, rather than uniformly actuating all apparatuses in the entire space
Solution Approach 2:
The system implements location-specific temperature control by using multiple temperature sensors distributed throughout the space to detect local temperature conditions, and selectively actuates VAV apparatuses only in zones where temperature adjustments are needed, providing differentiated control quality for different locations
2Reliability
If all VAV apparatuses are actuated in response to exit temperature increase, then temperature regulation reliability is improved, but energy waste increases
Solution Approach 1:
The system responds to temperature increases at exits by selectively actuating only the VAV apparatus located at the exit or in the immediate vicinity, rather than uniformly actuating all VAV apparatuses throughout the room, thereby localizing the response to the specific problem area
Solution Approach 2:
The system applies partial action by actuating only the minimum necessary number of VAV apparatuses (one or a few) to address the localized temperature issue at the exit, rather than applying full action to all apparatuses, thus avoiding excessive energy consumption while still achieving temperature regulation
3Measurement precision
If multiple temperature sensors are used for room control, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system uses multiple temperature sensors distributed in different locations throughout the room to capture local temperature variations, improving the precision and representativeness of temperature measurements without requiring a single complex sensing device
Data Source
AI summary
In a wireless sensor actuator network system, actuators to be actuated to correspond to a plurality of sensors are selected using an A-S matrix that represents relationship strength between a plurality of actuators and the plurality of sensors based on sensing data of the plurality of sensors, and only the selected actuators determine actuation values based on values of the A-S matrix.