Remote Control Pulse Grouping for Low-Power IR Commands
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Solution Overview
Problem
Existing remote control devices consume excessive power due to the use of traditional battery-powered infrared key protocols, leading to increased carbon emissions and environmental pollution.
Innovation Solution
A remote control device that identifies binary codes based on user commands and transmits pulse signals in groups of pre-set bit units, reducing power consumption by combining multiple bits into a single pulse signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional infrared key protocols are used with one pulse per binary digit, then complete control commands can be transmitted, but power consumption is excessive
Solution Approach 1:
The patent combines multiple binary digits into a single pulse signal. Specifically, it encodes 3-bit binary data into one pulse width modulation signal, where the pulse width represents the binary value. This merging approach reduces the number of pulses from 3 per byte to 1 per byte, significantly lowering power consumption while maintaining complete control command transmission capability
Solution Approach 2:
The patent changes the encoding parameter from time-based pulse counting (one pulse per bit) to amplitude/width-based encoding (one pulse representing multiple bits). By varying the pulse width or amplitude to represent different binary values, the system transmits more information per pulse, reducing total pulse count and energy consumption
2Reliability
If multiple pulses are transmitted for each binary digit, then accurate control commands are sent, but the number of pulses increases power consumption
Solution Approach 1:
The patent merges multiple binary digit transmissions into a single pulse event. By encoding 3-bit data (representing 8 possible values) into one pulse with distinct width or amplitude levels, the system maintains reliable command transmission while reducing energy loss from multiple pulse generation, transistor switching, and infrared LED activation events
3Ease of operation
If conventional battery-powered infrared remote control is used, then device control is achieved, but carbon emissions and environmental pollution increase
Solution Approach 1:
The patent applies pulse width modulation to combine multiple control signal elements into single pulses, dramatically reducing the duty cycle and average power consumption. This enables the remote control to operate on energy harvesting from ambient sources (light, radio waves, thermal gradients), eliminating batteries and their associated environmental harm while preserving full device control capability
Solution Approach 2:
The patent enables the remote control to harvest energy from its environment (ambient light, electromagnetic waves, temperature differences) to power its operations. This self-service energy generation eliminates the need for disposable batteries, reducing carbon emissions and environmental pollution while maintaining ease of operation
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 approach significantly reduces power consumption by minimizing the number of pulses required, thereby decreasing energy usage and environmental impact.
Implementation Method 1
Infrared (IR) key values may be transferred from the remote controller to the TV (or the external devices)
Data Source
AI summary
A remote control device is disclosed. a remote control device includes: a user interface; a memory storing at least one instruction and a plurality of binary codes; a communication interface; and at least one processor operatively connected with the user interface, the memory, and the communication interface and configured to execute the at least one instruction to: identify, based on a user command receiving through the user interface, a binary code corresponding to the user command from among the plurality of binary codes, identify, based on a pre-set number of bit units, a plurality of bit groups corresponding to the binary code, and control the communication interface to transmit a first pulse signal corresponding to the plurality of bit groups.