Variable Transmission Control During Sensor Failure
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Solution Overview
Problem
Existing non-light-emitting variable transmission devices, such as electrochromic systems, face performance failures due to sensor parameter failures, leading to system inefficiencies and potential disruptions in controlling light transmission states.
Innovation Solution
A system comprising non-light-emitting variable transmission devices, sensors, and a processor that continuously monitors system health and adjusts control algorithms to compensate for sensor failures by activating default procedures, allowing the system to maintain optimal performance even when sensors fail, using prioritization schemes and predictive algorithms to manage light transmission states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control algorithms use sensor data to optimize device performance, then device performance is improved, but system reliability deteriorates when sensors fail
Solution Approach 1:
The system pre-establishes multiple control algorithms with different priorities before sensor failure occurs. When sensor failure is detected, the processor automatically switches to a lower-priority algorithm that does not depend on the failed sensor, ensuring continuous operation without interruption to device performance
Solution Approach 2:
The system changes the operational parameters by switching between different control algorithms based on sensor availability. When sensors are functional, the system uses algorithms that optimize performance using sensor data. When sensors fail, the system transitions to algorithms that operate with modified parameters without sensor input, maintaining reliability while adapting performance expectations
2Measurement precision
If the system uses multiple sensors and control algorithms, then control precision is improved, but device complexity increases
Solution Approach 1:
The control system is segmented into multiple independent control algorithms with different priorities and sensor dependencies. Each algorithm is designed to handle specific sensor availability scenarios, allowing the system to maintain precision by selecting the appropriate algorithm segment based on current sensor functionality, while managing complexity through modular design
Solution Approach 2:
The control algorithms are designed with multi-functionality to handle both normal operation with full sensor data and failure operation with reduced sensor data. This universal design allows the same algorithm structure to serve multiple purposes, reducing overall system complexity while maintaining control precision across different operational states
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system ensures smooth operation and maintains environmental conditions by adjusting control algorithms to omit failed sensor data, allowing the system to function without complete disruption, maintaining temperature and visibility even when sensor failures occur, and enabling continuous operation until sensors are restored.
Implementation Method 1
Non-light-emitting variable transmission devices, such as electrochromic (EC) devices, employ materials capable of reversibly altering their optical properties following electrochemical oxidation and reduction in response to an applied potential
Data Source
AI summary
A system can include one or more sensors, one or more non-light emitting, variable transmission devices, and a processor coupled to the one or more non-light emitting, variable transmission devices and the one or more sensors. The processor can be configured to receive a sensor failure signal from the one or more sensors. The sensor failure signal can indicate that the one or more sensors are not working. The processor can be further configured to adjust one or more control algorithms used to control the one or more non-light emitting, variable transmission devices based on the received sensor failure signal. The processor can be further configured to send a first command to the one or more non-light emitting, variable transmission devices to change a transmission state of all of the one or more non-light emitting, variable transmission devices based on the received sensor failure signal to a sensor failure transmission state.