Atmospheric Sensor Failure Detection via Data Counting
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Solution Overview
Problem
The reliability of atmospheric environment monitoring systems is compromised when individual sensors malfunction, as existing systems lack effective methods to accurately detect and address sensor failures, which can lead to inaccurate data and decreased system reliability.
Innovation Solution
An apparatus and method that sequentially receive and store atmospheric environment measurement data from sensors, determining failure based on the total number of data points and the presence of abnormal values, and classify data into correlation groups to identify invalid data sets, thereby detecting sensor failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If atmospheric environment sensors are used to measure pollutants, then the system can guide atmospheric environment conditions, but sensor malfunction decreases system reliability
Solution Approach 1:
The system performs preliminary actions by continuously monitoring sensor output and checking for abnormal values before they cause complete system failure. The control unit proactively detects potential sensor malfunctions by comparing sequential measurement values against predetermined thresholds, allowing the system to identify and flag problematic sensors before they significantly compromise overall reliability.
Solution Approach 2:
The system implements feedback mechanisms where measurement data from sensors is continuously fed back to the control unit for analysis. The control unit compares sequential measurements and provides feedback about sensor health status, enabling real-time detection of drift or malfunction. This closed-loop feedback allows the system to maintain reliability by identifying and compensating for sensor issues.
2Measurement precision
If multiple atmospheric environment sensors are deployed, then measurement coverage is improved, but detecting individual sensor failure becomes more difficult
Solution Approach 1:
The system segments the monitoring task by assigning unique identifiers to individual sensors and tracking their measurements separately. The control unit processes measurements from each sensor independently, allowing failure detection for individual sensors without affecting the overall system. This segmentation enables precise identification of which specific sensor is malfunctioning while maintaining data from other healthy sensors.
Solution Approach 2:
The system applies partial action by checking only the essential criteria for sensor failure (abnormal value thresholds) rather than performing exhaustive analysis on all possible failure modes. This approach enables efficient detection of sensor issues in multi-sensor systems without creating excessive computational complexity, balancing detection capability with operational simplicity.
3Productivity
If sensor failure is not detected, then the system continues operating, but data accuracy decreases
Solution Approach 1:
The system takes preliminary action by detecting sensor failures through abnormal value detection before the faulty sensor data significantly degrades overall measurement accuracy. The control unit continuously monitors for values exceeding predetermined thresholds and flags potential failures early, allowing the system to maintain data accuracy by identifying problematic sensors before their errors accumulate.
Solution Approach 2:
The system uses feedback loops where measurement data is continuously monitored and compared against expected ranges. When abnormal values are detected, the feedback mechanism triggers failure detection alerts, enabling the system to maintain productivity by continuing operation while simultaneously preserving data accuracy through early identification and potential exclusion of faulty sensor readings.
Data Source
AI summary
An atmospheric environment monitoring apparatus includes: a communication interface unit which sequentially receives first atmospheric environment measurement data to N-th atmospheric environment measurement data from any one atmospheric environment sensor when a measurement period of an atmospheric environment sensor comes; a data storage unit which stores the first atmospheric environment measurement data to the N-th (N is an integer of 1 or more) atmospheric environment measurement data; and a control unit which checks the total number of the first atmospheric environment measurement data to the N-th atmospheric environment measurement data.