Multi-Zone IAQ Control Using Sensor Location Tracking
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Solution Overview
Problem
In multi-zone HVAC environments, misplaced IAQ sensing devices can cause HVAC systems to operate based on incorrect IAQ parameters, affecting air quality levels across zones.
Innovation Solution
A system comprising HVAC devices, electronic locks, and IAQ sensing devices that track the position and motion of sensing devices, generating alerts and adjusting HVAC operations to maintain user-defined or default IAQ settings when sensing devices are moved out of their assigned zones, using communication modules like Bluetooth, UWB, or WIFI for communication between devices and locks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If IAQ sensing devices are made movable for ease of installation and maintenance, then ease of operation is improved, but reliability deteriorates due to misplaced devices causing incorrect HVAC control
Solution Approach 1:
The system continuously monitors the position of IAQ sensing devices using electronic locks and communication modules, and provides feedback to the control system. When a device is detected to be misplaced, the system generates alerts and automatically adjusts HVAC operation to compensate, ensuring reliable IAQ control despite device movement.
Solution Approach 2:
The system performs preliminary verification of sensing device positions during installation and before HVAC operation begins. Electronic locks record device locations in advance, and the system proactively detects potential misplacement issues before they affect IAQ control, allowing preventive corrective action.
2Reliability
If the system continuously monitors sensing device positions to ensure reliability, then reliability is improved, but device complexity increases due to additional tracking components
Solution Approach 1:
The electronic locks serve multiple functions: they provide security access control for zones and simultaneously track the positions of IAQ sensing devices. The communication modules used for HVAC control also facilitate position monitoring, eliminating the need for separate dedicated tracking infrastructure.
Solution Approach 2:
The IAQ sensing devices self-report their positions to the electronic locks and control system through integrated communication modules. The system automatically detects misplacement without requiring manual verification or external monitoring equipment, reducing overall system complexity.
Data Source
AI summary
A system to control indoor air quality (IAQ) at zones of an area of interest (AOI) is disclosed. The system comprises one or more HVAC devices configured with one or more zones of the AOI, one or more electronic locks configured with a door of the one or more zones, and one or more IAQ sensing devices provided at the one or more zones, wherein the one or more sensing devices are configured to communicatively couple with the one or more electronic locks, and the one or more HVAC devices, and wherein each of the electronic locks is configured to track position and motion of the sensing device that is assigned to the zone where the corresponding electronic lock is installed; and generate an alert signal when the sensing device assigned to any of the one or more zones is detected to be out of the corresponding zone.