Smoking Substitute Device Child Safety Mode Controller
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Solution Overview
Problem
Current heated tobacco devices lack a child-safe mode, posing safety risks as they can be accidentally activated by children, leading to potential harm.
Innovation Solution
A smoking substitute device with a controller that switches between child safety mode (CSM) and non-child safety mode (N-CSM), modifying control actions such as the duration of button presses or requiring complex sequences to activate the heater, ensuring it remains in the selected mode until changed by the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device is designed to be easily activated for normal use, then ease of operation is improved, but child safety is worsened as children can accidentally activate it
Solution Approach 1:
The device dynamically adjusts its activation requirements based on the detected mode. In child-safe mode, the controller requires prolonged button presses or specific press sequences that are dynamically more difficult to activate, while in normal mode, standard activation procedures apply. This dynamic adjustment resolves the contradiction by making activation easy for intended users while preventing accidental activation by children.
Solution Approach 2:
The controller changes the activation parameters (button press duration, press sequence complexity) depending on the operational mode. In child-safe mode, the required press duration is extended or additional press sequences are required, fundamentally changing the activation parameters to prevent child access while maintaining normal ease of operation when not in child-safe mode.
2Object-affected harmful factors
If the device requires complex control actions to prevent child activation, then child safety is improved, but ease of operation is worsened for legitimate users
Solution Approach 1:
The device dynamically adapts its control complexity based on the operational mode. The controller detects whether child-safe mode is active and only then applies complex control requirements. This ensures that complex controls are only imposed when needed for safety, not during normal operation, thus maintaining ease of operation for legitimate users while ensuring child safety when required.
Solution Approach 2:
The device applies preliminary protective measures by requiring complex control actions specifically in child-safe mode before activation can occur. This preliminary anti-action prevents harmful activation by children while not affecting normal operation, as the complex controls are only enforced when the child-safe mode is deliberately activated by the user.
3Reliability
If the device maintains mode selection across power down and battery depletion, then reliability is improved, but device complexity is worsened
Solution Approach 1:
The controller performs preliminary action by detecting and storing the operational mode in memory before power down or battery depletion occurs. This preliminary detection and storage ensures that the mode information is preserved and can be restored upon power recovery, maintaining reliability without requiring complex continuous monitoring systems throughout the power cycle.
Solution Approach 2:
The controller creates a copy of the operational mode state in non-volatile memory or storage before power loss. This copying mechanism ensures that the mode information is preserved across power cycles and battery depletion events, maintaining reliability while using a simple copy-and-restore approach rather than complex persistent state management systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances safety by making it difficult for children to activate the device, providing a secure operation that prevents unintended heating cycles and ensures the device remains in the chosen mode despite power down or battery depletion.
Implementation Method 1
heat may be imparted to the tobacco material by a heating element of the device
Implementation Method 2
heating element of the device, wherein airflow through the tobacco material causes components in the tobacco material to be released as vapour
Implementation Method 3
the vapour cools and condenses to form an aerosol for inhalation by the user
Implementation Method 4
the vapour cools and condenses to form an aerosol
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
A smoking substitute system comprising a device to switch between child safety mode (CSM) and non-child safety mode (N-CSM) is described, along with method of switching such a device between such modes. The device comprises a controller that is configured to detect the mode of operation selected by a user and switch from the current mode to the selected mode based on user selection. The device may be switched from non-child safety mode (N-CSM) to child safety mode (CSM). The controller may be configured to modify at least one control action of the device.