TV Parental Control via Wireless Power Detection
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Solution Overview
Problem
Traditional remote controls for smart televisions consume excessive power due to Bluetooth interfaces, requiring frequent battery replacements, and existing parental control systems are ineffective in preventing children from using televisions for non-restricted activities, as they can still access other functions like gaming or video content.
Innovation Solution
A method and system that utilizes a rechargeable remote control with a wireless power receiver module and a television device equipped with a wireless power transmitter module, enabling a parental control function that disables the television when the remote control is out of range, preventing children from turning on or using the TV for restricted activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth interface is used in remote control for smart televisions, then key button signal transmission is achieved, but electric power consumption increases
Solution Approach 1:
The remote control uses infrared transmission for periodic key button signaling instead of continuous Bluetooth operation. The infrared transmitter sends signals only when buttons are pressed, significantly reducing power consumption while maintaining operational functionality.
Solution Approach 2:
The patent introduces an infrared transmitter as an intermediary communication interface between the remote control and television. This intermediary uses low-power infrared technology for basic remote control functions, avoiding the high power consumption of Bluetooth while achieving the same operational goal.
2Ease of operation
If ordinary batteries are used in remote control, then portability is maintained, but frequent battery replacement is required
Solution Approach 1:
The remote control incorporates a rechargeable battery with wireless charging capability. The television set acts as a wireless charging station, automatically charging the remote control when placed on top of it. This self-service charging mechanism eliminates the need for frequent battery replacements while maintaining portability.
3Object-affected harmful factors
If parental control function only blocks channels, then channel restriction is achieved, but children can still access other television functions
Solution Approach 1:
Instead of allowing all functions and blocking specific channels, the parental control function inverts the approach by completely disabling television operation during restricted periods. The television is latch-disabled and cannot be turned on or used for any function unless the parental control password is entered, making the control mechanism more reliable and comprehensive.
Solution Approach 2:
The parental control function is designed to universally restrict all television operations including channel selection, video playback, gaming, and other functions. The latch-disabled state applies to the entire television system, not just specific channels, ensuring comprehensive parental control across all television functionalities.
4Ease of operation
If children can turn on television at any time, then ease of use is maintained, but parental control authority is compromised
Solution Approach 1:
The parental control function is activated in advance to latch-disable the television before children can access it. The system proactively prevents television operation by maintaining a disabled state that requires password authentication to解除, eliminating the need for continuous monitoring or intervention.
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
The solution ensures that televisions are completely disabled, preventing children from accessing any functions, while also being environmentally friendly by allowing rechargeable batteries, thus addressing both power consumption and parental control effectiveness issues.
Implementation Method 1
The wireless power receiver module is coupled to the power supply module and adapted for sensing variation of a magnetic field to generate an induced electromotive force, so as to electrically charge the power supply module
Data Source
AI summary
A method for controlling a television device comprises the following steps. A portable device with a wireless power receiver module is provided. A display control module of the television device receives a parental control signal from a remote control module of the portable device. A feedback detector unit of a wireless power transmitter module of the television device detects whether the wireless power receiver module is located within a predetermined range so as to generate a first detection result. The display control module selectively enables a parental control function according to the parental control signal and the first detection result. The feedback detector unit again detects whether the wireless power receiver module is located within the predetermined range so as to generate a second detection result. Finally, the television device is controlled to turn on, turn off or enter into a standby mode based on the second detection result.