Energy-Efficient Dispenser LED Indication Sequences
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Solution Overview
Problem
Traditional diffusion dispensers consume excessive energy to power LED indicators, which is inefficient and inconvenient for users, especially those using battery-powered devices.
Innovation Solution
The development of an energy-efficient dispenser that uses LED indication sequences with a pulse width mode of operation at a duty cycle of 40% to 80%, consuming no more than 0.0625 mAh of energy to indicate operational states, such as dispense, lockout, and active modes, thereby reducing overall energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional LED indication sequences are used to inform users of dispenser operational state, then user information about dispenser state is provided, but excessive energy is consumed
Solution Approach 1:
The LED indicator operates in periodic pulsing sequences rather than continuous operation. Different operational states (dispensing, lockout, battery low) are indicated by specific patterns of LED pulses, allowing user information to be conveyed while the LED remains off for significant portions of time, thereby dramatically reducing energy consumption.
2Ease of operation
If battery-powered dispensers operate for extended periods, then user convenience is improved, but battery replacement frequency increases due to high energy consumption
Solution Approach 1:
By implementing periodic LED indication sequences with duty cycles that keep the LED off for most of the time, the energy consumption is reduced enough to extend battery life from months to years, eliminating the need for frequent battery replacements and improving user convenience.
Solution Approach 2:
The LED operational parameters (duty cycle, pulse width, frequency) are optimized to provide sufficient visual indication to users while consuming minimal energy. The system uses different pulsing patterns to convey different operational states, maintaining information quality while minimizing power draw.
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
This solution significantly extends the battery life of the dispenser, allowing it to operate for longer periods without battery replacement, providing both convenience and cost savings by minimizing energy usage and extending the lifespan of the power source.
Implementation Method 1
many dispensers include an audible indicator or a visual indicator, such as an LED which blinks according to an LED indication sequence
Data Source
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AI summary
An energy efficient dispenser for dispensing product from a container includes at least one indicator for displaying a first indication sequence when the dispenser is in a dispense mode operational state and a second indication sequence when the dispenser in a lockout mode operational state. Each indication sequence includes one or more activations of the at least one indicator, which utilize no more than 0.0625 mAh of energy to provide an indication to a user of the operational state of the dispenser.