Wireless PAPR Control and Status Indicators
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Solution Overview
Problem
Powered Air Purifying Respirators (PAPRs) face challenges in providing easy access to controls and status indicators, especially in containment environments where visibility and control positioning are limited, and wired solutions can be impractical due to snagging or entanglement issues.
Innovation Solution
The implementation of a wireless communication system between the turbo unit, remote control unit, and status indicator unit allows for flexible positioning and remote operation, using a closed loop network with RF communication, enabling convenient access to controls and status indicators without the need for multiple power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the turbo unit is positioned at the rear of the torso for convenience, then the wearer can work without interference, but the controls and status indicators become difficult to locate and operate
Solution Approach 1:
The system is divided into separate functional components: the turbo unit (air generation), the control unit (wireless communication), and the status indicator unit (visual feedback). This segmentation allows each component to be positioned independently, enabling the turbo unit to remain at the rear for work convenience while controls and indicators are accessible to the wearer.
Solution Approach 2:
The patent replaces wired mechanical connections with wireless communication technology. The control unit communicates with the turbo unit via wireless signals, eliminating the need for physical cables. This substitution enables flexible positioning without the constraints of wired connections, allowing the wearer to move freely while maintaining full control and monitoring capabilities.
2Reliability
If wired solutions are used to connect controls and indicators to the turbo unit, then reliable communication is achieved, but the risk of snagging or entanglement increases
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless communication system. The control unit and status indicator unit communicate with the turbo unit through wireless signals, completely eliminating physical cables. This substitution removes the harmful effects of snagging and entanglement while maintaining reliable communication through electromagnetic signal transmission.
3Adaptability or versatility
If multiple power sources are provided for the turbo unit, control unit, and status indicator unit, then each component can operate independently, but the device complexity increases
Solution Approach 1:
The patent merges the power sources by providing a single power source that supplies electrical energy to all system components: the turbo unit, the control unit, and the status indicator unit. This unified power approach eliminates the complexity of managing multiple independent power sources while ensuring all components can operate together as an integrated system.
Data Source
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AI summary
A powered air purifying respirator (PAPR) for delivering a forced flow of filtered air to a wearer is disclosed. The PAPR comprises a turbo unit with turbo unit components including a fan, an electric motor, and an electronic control unit having a wireless electronic control transceiver, the fan being driven by the electric motor under the control of the electronic control unit and the electronic control unit being configured to send and receive information via the electronic control transceiver; a turbo unit power source that provides power to the turbo unit components; a turbo remote control unit having a wireless turbo remote control transceiver; at least one turbo status indicator unit, adapted to indicate a current operating status of the turbo unit and/or turbo unit components, having a wireless turbo status transceiver; wherein at least one of the turbo remote control unit and turbo status indicator unit is remote from the turbo unit, and wherein at least two of the electronic control transceiver, the turbo remote control transceiver and the turbo status transceiver are in wireless communication with each other.