Vaporiser Reconnection Wake Control for Low-Power E-Cigarettes
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Solution Overview
Problem
Existing electronic vapour provision devices, such as electronic cigarettes, face inefficiencies in power consumption and accidental activation due to lack of a reliable mechanism to transition between inactive and active modes without user intervention.
Innovation Solution
The device incorporates a processor that enters a low-power sleep mode when the vaporiser is connected and remains inactive for a predetermined time, requiring user-initiated disconnection and reconnection to switch to a usable mode, utilizing a capacitor and sensor arrangement to detect vaporiser connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the device remains in a low-power sleep mode to minimize energy consumption, then power efficiency is improved, but the device cannot accidentally activate and requires user-initiated disconnection and reconnection to switch to usable mode
Solution Approach 1:
The device dynamically transitions between sleep mode and usable mode based on operational state. The processor enters sleep mode after an inactive time period to conserve power, and transitions to usable mode upon detecting vaporiser disconnection and reconnection, providing adaptive power management that balances energy efficiency with operational readiness
Solution Approach 2:
The device uses feedback from the connection status of the vaporiser to control mode transitions. The processor monitors whether the vaporiser is connected and uses this information to determine when to exit sleep mode, ensuring that activation only occurs when the user intentionally reconnects the vaporiser after disconnection
2Reliability
If the device requires disconnection and reconnection to exit sleep mode to prevent accidental activation, then reliability is improved, but device complexity increases due to additional detection mechanisms
Solution Approach 1:
The device uses its existing connection detection capability to trigger mode transitions. The processor already monitors vaporiser connection status for normal operation, and this same detection mechanism is leveraged to determine when to exit sleep mode, eliminating the need for separate activation sensors or complex control circuits
Solution Approach 2:
The connection detection mechanism serves multiple functions: it monitors vaporiser attachment for safety, triggers mode transitions from sleep to usable state, and provides operational status information. This multi-functional use of a single detection mechanism reduces overall device complexity while maintaining reliable activation control
Data Source
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AI summary
An electronic vapour provision device comprises a body 4 and a vaporiser 24. The body 4 comprises a power cell 10 and a processor 16, and the vaporiser 24 is releasably connectable to the body 4. The processor 16 is configured to enter a sleep mode when the vaporiser 24 is connected to the body 4 and the device is inactive for an inactive time. Furthermore, the processor 16 is configured to leave the sleep mode and enter a usable mode when the vaporiser 24 is disconnected from the body 4 then reconnected to the body 4.