Vehicle-Triggered Exhaust Ventilation Control for Fire Stations
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Solution Overview
Problem
Existing exhaust ventilation systems in enclosed facilities face issues with unnecessary energy consumption and safety hazards due to the inability to accurately determine when vehicles are outside the facility, leading to continuous operation of ventilation systems even when vehicles are not present or are operating outside the facility.
Innovation Solution
A vehicle device with a transmitter, controller, input unit, and brake input unit that automatically re-engages or deactivates the facility exhaust ventilation system based on vehicle status inputs, such as brake activation or deactivation, to seamlessly manage the ventilation system's operation in response to vehicle movements and locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the exhaust ventilation system operates continuously to ensure safety, then the safety of occupants is improved, but the energy consumption increases
Solution Approach 1:
The exhaust ventilation system transitions from continuous static operation to dynamic operation based on real-time vehicle detection. The system activates the exhaust fan only when a vehicle is detected inside the facility (via transmitter signal from vehicle electronics), and deactivates when no vehicle is present, optimizing energy consumption while maintaining safety.
Solution Approach 2:
The system implements feedback control by continuously monitoring the presence of vehicles through transmitter signals from vehicle electronics (such as brake lights, ignition, or dedicated proximity transmitters). The exhaust ventilation system responds to this feedback by adjusting its operation state, ensuring safety when needed and reducing energy consumption when vehicles are absent.
2Object-affected harmful factors
If the exhaust ventilation system operates continuously to remove exhaust gases, then the air quality is improved, but the wear on ventilation components increases
Solution Approach 1:
The exhaust ventilation system operates dynamically rather than continuously, adjusting its runtime based on actual vehicle presence. This reduces the cumulative operating hours of the exhaust fan and associated components, thereby reducing wear and extending maintenance intervals while maintaining air quality when vehicles are present.
Solution Approach 2:
The system uses the vehicle's own electronic signals (brake lights, ignition status, or proximity transmitters) to automatically control the exhaust ventilation operation. This self-service mechanism ensures the ventilation system activates only when a vehicle is present, eliminating the need for manual control and reducing unnecessary component wear.
3Use of energy by moving object
If the transmitter is manually deactivated to prevent unnecessary ventilation operation, then the energy consumption is reduced, but the safety risk increases due to potential failure to detect vehicle presence
Solution Approach 1:
The system eliminates manual transmitter deactivation by using automatic detection of vehicle presence through the vehicle's own electronic signals (brake lights, ignition status, or dedicated transmitters). The exhaust ventilation system activates and deactivates automatically based on these signals, removing the need for manual intervention and the associated safety risks.
Solution Approach 2:
The system implements automatic feedback control where the exhaust ventilation operation is directly controlled by real-time signals from the vehicle's electronic systems. This feedback mechanism ensures the ventilation system responds automatically to vehicle presence, eliminating the safety risks associated with manual deactivation while optimizing energy consumption.
4Extent of automation
If the transmitter range is extended to detect vehicles outside the facility, then the automation capability is improved, but the false activation of ventilation system increases
Solution Approach 1:
The system applies different detection criteria based on the vehicle's location relative to the facility. Transmitters within the facility trigger exhaust ventilation activation, while transmitters outside the facility do not. This local quality approach ensures automation capability is maintained while preventing false activation by distinguishing between vehicles inside and outside the facility boundaries.
Solution Approach 2:
The system dynamically adjusts its response based on the vehicle's position and operational state. It uses multiple signal inputs (brake lights, ignition status, proximity transmitters) and evaluates them in context of the vehicle's location to determine whether to activate the exhaust ventilation, preventing false activation while maintaining automation.
Data Source
AI summary
A vehicle device and method for controlling facility exhaust ventilation systems in facilities related to first responder and other commercial vehicles, wherein the device and method automatically reengages operation of the facility exhaust ventilation system, based on vehicle status inputs.