Mobile Terminal Indoor Detection Circuit Control
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Solution Overview
Problem
Existing mobile communication terminals with near field communication functions face challenges in automatically determining whether they are indoors or outdoors, leading to inefficient battery consumption and user inconvenience in searching for radio repeaters.
Innovation Solution
A mobile communication terminal equipped with a short-distance radio communication module, a reception module for receiving a second radio wave, and a determination module that automatically switches the short-distance radio communication circuit on or off based on the presence of multipath signals or GPS signal strength to search for a radio repeater only when indoors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the short-distance radio communication circuit is kept ON to automatically search for radio repeaters, then the user is released from manual operation and search convenience is improved, but battery consumption increases
Solution Approach 1:
The patent applies dynamics by making the short-distance radio communication circuit's operational state changeable based on environment. The circuit automatically switches between ON and OFF states according to whether the terminal is detected to be indoors or outdoors, optimizing both user convenience and battery consumption dynamically.
Solution Approach 2:
The patent implements self-service through automatic environment detection and circuit control. The terminal automatically detects whether it is indoors or outdoors using sensor data and autonomously controls the short-distance radio communication circuit without requiring user intervention, achieving both convenience and energy efficiency.
2Use of energy by moving object
If the short-distance radio communication circuit is turned OFF outdoors to save battery, then battery consumption is reduced, but manual turning-on/off operation is required which reduces convenience
Solution Approach 1:
The terminal performs self-service by automatically detecting the environment (indoor/outdoor) using sensors and autonomously controlling the circuit state. This eliminates the need for manual user operation while achieving battery conservation when outdoors.
Solution Approach 2:
The system uses feedback from sensor data (light sensors, GPS, accelerometer) to automatically adjust the circuit state. The detection results feed back to the control logic, which then appropriately switches the circuit between ON and OFF states without user intervention.
3Extent of automation
If a camera is used to estimate indoor/outdoor location, then automatic circuit control can be achieved, but the camera does not operate when the terminal is in a pocket or bag, leading to inadequate location estimation
Solution Approach 1:
The patent employs multiple sensors (light sensors, GPS receivers, accelerometers) that can serve both their primary functions and location estimation. These sensors operate continuously regardless of terminal orientation or storage position, providing reliable indoor/outdoor detection in all situations.
Solution Approach 2:
The system continuously collects and analyzes sensor data in advance to determine location status before circuit control is needed. This preliminary detection ensures accurate location estimation is always available, regardless of whether the terminal is in use or stored in a pocket/bag.
Data Source
AI summary
A mobile communication terminal and method includes a short-distance radio communication module to perform a short-distance communication by a first radio wave via a radio repeater; a reception module receives a second radio wave different from the first radio wave; a determination module determines whether the mobile communication terminal exists indoors or outdoors based on a state of the second radio wave that is received by the reception module; and a search module searches a radio repeater if and when the determination module determines that the mobile communication terminal exists indoors.