Remote Control Power Adjustment by User Position
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Solution Overview
Problem
Existing remote control systems consume fixed power regardless of user position and angle relative to the controlled device, leading to inefficient signal transmission and battery drain, as they do not account for variations in distance and angular position.
Innovation Solution
The system uses two radio transmitters and an infrared receiver on the controlled device and a radio frequency receiver, comparison circuit, and power adjusting circuit on the remote control to determine the user's distance and angular position, adjusting the infrared transmitter's power output accordingly, using phase and power measurements to calculate and adjust the output voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the output power of the remote control is increased to extend communication distance, then the transmission range is improved, but the power consumption increases causing battery drain
Solution Approach 1:
The patent applies dynamics by making the output power of the infrared transmitter variable rather than fixed. The system dynamically adjusts the power output based on real-time detection of user distance and angular position, using sensors to continuously monitor position and feed back to the power control circuit to optimize transmission power according to actual communication needs
Solution Approach 2:
The patent changes the power parameter of the infrared transmitter based on detected position parameters. By measuring distance and angular position, the system calculates the required power level and adjusts the transmitter output accordingly, transforming a static power setting into a dynamic parameter that adapts to varying communication conditions
2Device complexity
If the remote control uses fixed power output, then the circuit design is simple, but it causes unwanted power consumption regardless of user position
Solution Approach 1:
The patent implements feedback by using sensors to detect user position and distance, then feeding this information back to the power control circuit. The system continuously monitors position parameters and adjusts power output in real-time, creating a closed-loop control system that eliminates wasteful power consumption while maintaining reliable communication
Solution Approach 2:
The system performs self-adjustment of power output based on its own detection of user position. The remote control autonomously determines the required power level by measuring distance and angle, then self-regulates the transmitter power without external intervention, optimizing energy efficiency automatically
3Reliability
If the remote control operates at maximum power, then signal transmission reliability is improved, but battery life is reduced due to unnecessary power usage at close distances
Solution Approach 1:
The patent changes the power parameter dynamically based on detected distance and position. By calculating the minimum required power to maintain reliable transmission at the current distance, the system adjusts the transmitter output to match actual needs, ensuring sufficient signal strength while avoiding excessive power consumption that would drain the battery
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 optimizes power consumption by reducing power at closer distances and increasing it at farther distances, ensuring correct signal transmission and extending battery life by minimizing unnecessary power usage.
Implementation Method 1
Most of the remote controls used nowadays make use of infrared transmitters, wherein the infrared receivers of an electronic device to be controlled receive the relevant signals transmitted by the remote control
Implementation Method 2
The system uses two radio transmitters and an infrared receiver on the controlled device and a radio frequency receiver, comparison circuit, and power adjusting circuit on the remote control to determine the user's distance and angular position
Data Source
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AI summary
The present invention provides saving of power consumed by the remote control in response to user's position and the transmission of signals sent by the remote control in a correct manner, in an electronic system controlled by a remote control. The present invention may be used in any kind of electronic system that can be controlled by means of a remote control operated by battery. Thanks to the present invention which adjusts the output power of the remote control according to the position in which the user is present, it becomes possible to use relatively less power at closer distances and to deliver the signals transmitted by the remote control to the target at farther distances.