Compartmentalized Environmental Sensor Assembly for Mobile Air Monitoring
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Solution Overview
Problem
Existing sensor systems face challenges in maintaining accuracy and efficiency when monitoring ambient air parameters due to vehicle motion-induced temperature and wind variations, and increasing complexity and data transmission requirements with multiple sensors.
Innovation Solution
A compartmentalized sensor assembly with modular sensors and internal dividers for stable air flow, allowing for multiple sensors to be mounted in a compact design, with plug-and-play connectivity and regulated airflow to ensure accurate readings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to monitor different ambient parameters, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor system is divided into modular sensor units, each dedicated to measuring specific ambient parameters (temperature, humidity, gas concentration, etc.). These modular units can be independently selected and combined based on monitoring needs, reducing overall system complexity while maintaining comprehensive measurement capabilities.
Solution Approach 2:
The patent employs a universal data acquisition and processing platform that can handle multiple sensor types and parameters. This multi-functional system allows different sensor units to interface with a common control and communication architecture, simplifying the integration of multiple sensors without proportionally increasing system complexity.
2Productivity
If sensors are mounted on a moving vehicle to monitor air quality over greater geographic area, then productivity is improved, but measurement precision deteriorates due to temperature and wind variations
Solution Approach 1:
The patent introduces a housing structure with internal dividers and air channels that act as an intermediary between the external environment and the sensors. This housing stabilizes the microenvironment around the sensors by controlling airflow and reducing direct exposure to temperature fluctuations and wind, thereby maintaining measurement precision during mobile operation.
Solution Approach 2:
The housing is segmented into separate compartments for different sensors, with dedicated air channels for each. This segmentation allows independent environmental control for each sensor type, optimizing their operating conditions while the system moves through varying external conditions.
3Measurement precision
If the number of sensors is increased to monitor more parameters, then measurement precision is improved, but loss of information increases due to larger data transmission requirements
Solution Approach 1:
The data acquisition and processing platform performs preliminary data processing, filtering, and validation at the source before transmission. This preliminary action reduces the volume of raw data that needs to be transmitted while preserving the essential measurement information, thereby reducing communication load without sacrificing measurement precision.
Solution Approach 2:
The system implements feedback mechanisms where processed data is used to adjust sensor sampling rates and transmission frequencies. When environmental conditions are stable, sampling and transmission are reduced; when changes are detected, the system increases monitoring intensity, optimizing the balance between measurement accuracy and data transmission requirements.
Data Source
AI summary
An environmental sensor assembly includes a housing having at least one internal divider defining a sensor compartment and a systems compartment, wherein the sensor compartment defines at least one opening to provide gas communication to the atmosphere; an interconnect providing electrical connections between the sensor compartment and the systems compartment; and a plurality of sensors each mounted in the sensor compartment in a detachable manner and operably connected to the interconnect. The sensor compartment and the systems compartment are sealed and separate.