Air-Quality Sensor Self-Calibration Using Reference Response Slopes
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Solution Overview
Problem
Legacy building management systems are inadequate for high-volume data processing, lack modern connectivity features, and require manual calibration of sensors and regulators, failing to provide optimized wellness, comfort, and energy solutions for large commercial and industrial buildings.
Innovation Solution
A system and method for initial calibration of air-quality sensor devices using a sensor array, input/output circuitry, and processing circuitry that establishes reference and sensor responses, develops a sensor response slope, and returns a corrected response, enabling automated calibration and re-calibration of sensors through a cloud-based network system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual calibration of sensors is performed in legacy systems, then sensor accuracy can be maintained, but operator workload and time consumption increase prohibitively
Solution Approach 1:
The sensor device performs self-calibration by automatically comparing its own sensor readings against reference sensor readings from co-located reference sensors. The processing circuitry within the sensor device autonomously calculates calibration adjustments and applies them without requiring manual intervention from operators, thereby maintaining measurement precision while eliminating the time-consuming manual calibration process
Solution Approach 2:
The system establishes feedback loops where sensor readings are continuously compared against reference sensor readings. The processing circuitry uses this feedback to automatically adjust calibration parameters, creating a closed-loop system that maintains accuracy through automated correction rather than manual intervention
2Reliability
If legacy building management systems are used, then basic environmental control is provided, but high-volume data processing capabilities and modern connectivity features are lacking
Solution Approach 1:
The patent replaces legacy mechanical and analog building management systems with electronic sensor devices that utilize digital signal processing and cloud-based data analytics. The sensor devices incorporate processing circuitry for real-time data analysis and connect through modern communication protocols to cloud platforms, enabling high-volume data processing while maintaining reliable environmental control
Solution Approach 2:
The sensor devices perform multiple functions including environmental sensing, automated calibration, data processing, and cloud connectivity within single integrated units. This multi-functionality replaces the need for separate legacy systems while enhancing data processing capabilities and maintaining environmental control reliability
3Ease of operation
If smaller-scale comfort and energy management systems are deployed, then home and small office management is improved, but they lack the scope and functionality required for large commercial buildings
Solution Approach 1:
The system is segmented into modular sensor devices that can be independently deployed in small units yet scaled to large commercial buildings. Each sensor device operates autonomously with its own processing circuitry and calibration capabilities, allowing flexible deployment from single rooms to entire building complexes while maintaining ease of operation and adaptability to different building scales
Data Source
AI summary
A system and method for initial calibration of an air-quality sensor device. The method includes establishing at least a reference response to an environmental condition based on a response of at least one calibrated detector to the environmental condition; establishing at least a sensor response to the environmental condition based on the response of at least one uncalibrated detector to the environmental condition; developing, based on the established sensor response, at least a sensor response slope; determining, based on the established reference response, the established sensor response, and the developed sensor response slope, at least a corrected response; and returning the corrected response.