Indoor Air Filtration With IoT Disconnection Fallback Control
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Solution Overview
Problem
Existing indoor air cleaning systems face challenges in maintaining air quality due to unstable gas flows and the inability to detect and respond to disconnections in Internet of Things (IOT) communication, which can disrupt the guiding and filtration functions.
Innovation Solution
The system incorporates a gas detector that outputs air pollution information via dual IOT communication methods (wired and wireless) and autonomously selects a functioning method for data transmission. If both methods fail, the gas detector autonomously computes and issues control commands to ensure continuous air filtration, maintaining indoor air quality at a cleanroom standard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If IOT communication is used to transmit air pollution information, then real-time monitoring and cloud-based control are achieved, but communication disconnection may disrupt the guiding and filtration functions
Solution Approach 1:
The gas detector is pre-configured with autonomous computation and control capabilities before communication disconnection occurs. When disconnected, the device can independently process air pollution information and issue control commands without relying on cloud server communication, ensuring continuous filtration operation.
Solution Approach 2:
A local memory component serves as an intermediary between the gas detector and cloud server. It stores air pollution information and control commands locally, allowing the system to continue operating during communication disconnections by retrieving from or writing to the memory buffer.
2Reliability
If dual communication methods (wired and wireless) are implemented, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The communication system dynamically switches between wired and wireless communication methods based on availability. The gas detector automatically selects the functioning communication channel, transforming a static complex dual-communication structure into a dynamic adaptive system that simplifies operation while maintaining reliability.
Solution Approach 2:
The system changes communication parameters (communication mode, protocol activation) based on environmental conditions and connection status. By adjusting which communication method is active, the system maintains reliability without permanently incorporating all complex communication hardware simultaneously.
3Speed
If autonomous computation is enabled in the gas detector, then response speed during disconnection is improved, but processing load on the detector increases
Solution Approach 1:
The gas detector performs partial autonomous computation only when necessary (during communication disconnection). During normal operation with active cloud connectivity, the device transmits data without intensive local processing, reducing energy consumption while maintaining rapid response capability when needed.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
An indoor air cleaning system with disconnection detecting and preventing mechanism includes a gas filtration device (D) and a cloud computing server (2). The gas filtration device (D) is disposed in an indoor field (A) and including a fan (D1), a filter element (D2), a gas detector (1) and a driving control element (D3). The gas detector (1) detects air pollution, outputs air pollution information. The cloud computing server (2) receives the air pollution information via IOT communication, stores the air pollution information to form a big data database, performs an intelligence computing for comparison based on the big data database, and issues a control command to enable the fan (D1). When IOT communication is judged as disconnected, the gas detector (1) autonomously computes and compares the air pollution information and issues the control command to enable the fan (D1), thereby reaching a gas state of the indoor field (A) to a cleanroom class with a level of air pollution close to zero.