Directional Wi‑Fi Radiation Control for Home Coverage and Security
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Solution Overview
Problem
Existing wireless communication devices, such as home gateways, often broadcast radio waves in all directions, leading to incomplete coverage within homes, unnecessary exposure to radio waves in certain rooms, and increased risk of hacking, especially outside the home.
Innovation Solution
A device and method for controlling the direction of local radio wave transmission using a controller that generates commands for rotating or reconfigurable antennas based on sensed data and user input to optimize coverage and reduce exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If omnidirectional radio wave transmission is used, then coverage area is maximized, but security risk and unnecessary exposure increase
Solution Approach 1:
The patent applies local quality by making the radiation pattern direction-dependent, where different spatial regions receive different treatment: desired zones receive strong signal coverage while unwanted zones (bedrooms, external areas) receive reduced or no radiation. This resolves the contradiction by providing targeted coverage rather than uniform omnidirectional transmission.
Solution Approach 2:
The patent employs dynamic control of the radiation pattern through adjustable directional transmission that can be modified in real-time based on sensed data and user preferences. The system dynamically redirects transmission away from sensitive areas while maintaining coverage in needed areas, resolving the static contradiction between coverage and exposure.
2Object-affected harmful factors
If directional transmission control is implemented, then security and exposure control improve, but device complexity increases
Solution Approach 1:
The patent applies self-service by enabling the communication device to automatically control its own radiation pattern based on sensed data from sensors and user preferences stored in memory. The processor autonomously determines optimal transmission directions without requiring external intervention, reducing the perceived complexity for users while maintaining sophisticated control functionality.
Solution Approach 2:
The patent implements feedback mechanisms where sensors continuously monitor the environment and user interactions, providing real-time data to the processor which adjusts the radiation pattern accordingly. This closed-loop feedback system manages complexity by using automated decision-making based on sensed conditions rather than requiring complex manual configuration.
3Use of energy by moving object
If time slot programming is used to stop transmission, then energy consumption is reduced, but coverage reliability deteriorates
Solution Approach 1:
The patent applies local quality by maintaining continuous transmission in desired zones while reducing or stopping transmission in unwanted zones. This spatially-selective approach ensures reliable coverage where needed while reducing energy consumption in areas where transmission is unnecessary, resolving the contradiction between energy efficiency and coverage reliability.
Data Source
AI summary
A device and a method for controlling radiation from a local radio wave communication device, in particular the radiation of radio waves for a local wireless communication device, such as Wifi™, Bluetooth™ etc. The control device includes a controller of a direction of transmission of local radio waves from the communication device. Thus, since the direction of transmission of the radio waves is controlled, a broadcasting thereof to outside of a residence can be avoided and risk of hacking can be limited. In addition, this can also reduce unnecessary exposure to radio waves, in particular by avoiding the transmission of radio waves to bedrooms.