Odor Sensor Array Chamber for Accurate Intensity and Type Detection
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Solution Overview
Problem
Existing odor sensors have varying levels of sensing response performance and accuracy, making it difficult to accurately determine the intensity and kind of odors in vehicles and industrial sites, and conventional sensors fail to provide reliable odor data for analysis and removal.
Innovation Solution
A device and method that includes an odor measurement chamber with internal and external odor sensors, a gas injection system, and circulation lines, allowing precise injection of gases at target concentrations for odor intensity, enabling simultaneous sensing by multiple sensors to collect standard data for odor intensity and kind determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional odor sensors are used to measure odors in vehicles and industrial sites, then odor measurement can be performed, but the sensing response performance and accuracy vary among different sensor types, making it difficult to accurately collect odor data and determine odor intensity and kind
Solution Approach 1:
The patent combines multiple types of odor sensors (electrochemical odor sensors and odor biosensors) into a single odor sensor array system. This merging allows the system to leverage the strengths of different sensor types to achieve more accurate and reliable odor measurement, overcoming the limitations of using single sensor types with varying performance characteristics.
Solution Approach 2:
The odor sensor array is designed to measure multiple odor components simultaneously using different sensor types. The system can identify both the intensity and kind of odors by processing data from electrochemical sensors (for quantitative measurement) and biosensors (for odor identification), making the system universally applicable to various odor measurement scenarios in vehicles and industrial sites.
2Measurement precision
If multiple types of odor sensors are used to improve measurement accuracy, then odor data collection can be enhanced, but the complexity of the system increases
Solution Approach 1:
The odor sensor array is segmented into distinct functional modules: electrochemical odor sensors for quantitative measurement and odor biosensors for odor kind identification. This segmentation allows each sensor type to perform its specialized function while the overall system remains organized and manageable, reducing the complexity burden of integrating multiple sensor types.
Solution Approach 2:
A controller is introduced as an intermediary component that processes data from multiple odor sensors and generates comprehensive odor information. The controller acts as a mediator that coordinates the different sensor types, standardizes their output formats, and integrates their measurements, thereby simplifying the system architecture while maintaining high measurement accuracy.
3Loss of information
If odor sensors are installed in vehicles and industrial sites to measure odor components, then odor data can be collected for analysis, but the collected data cannot accurately determine the intensity and kind of odors due to varying sensor performance
Solution Approach 1:
The system employs feedback mechanisms where the controller continuously processes data from odor sensors and compares measurements against reference values or patterns. This feedback loop enables the system to correct for sensor performance variations and accurately determine both odor intensity and kind, overcoming the information loss that would occur with single-sensor systems.
Solution Approach 2:
The system changes the measurement parameters by simultaneously collecting data from multiple sensor types with different response characteristics. By analyzing the combined parameter set from electrochemical and biosensors, the system can accurately identify both the intensity (concentration) and kind (chemical composition) of odors, resolving the ambiguity present in single-sensor measurements.
Data Source
AI summary
An embodiment device for collecting odor data includes an odor measurement chamber including a gas injection hole, a first gas circulation line and a second gas circulation line selectively connected to the odor measurement chamber, internal odor sensors disposed in the odor measurement chamber, wherein the internal odor sensors are of different types from each other, and an external odor sensor disposed outside the odor measurement chamber and connected to the first gas circulation line and the second gas circulation line.