Vehicle Communication Link Disconnection Logic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication devices fail to automatically disconnect the wireless link between an audio/visual communication device in a vehicle and a mobile device when the user exits the vehicle's proximity, leading to unnecessary power consumption and diversion of calls, even if the mobile device remains within range.
Innovation Solution
A method and system that determine whether the vehicle is stationary and the mobile device has exited the vehicle's proximity by using motion sensors and signal strength indicators, disconnecting the wireless communication link and transitioning to a low power mode if both conditions are met, with optional features like waiting for a predetermined time or monitoring for network connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication device maintains the wireless communication link as long as the mobile device is within range, then the user can remain connected when exiting the vehicle, but the communication device consumes unnecessary power and diverts calls when the user is not in the vehicle
Solution Approach 1:
The system dynamically adjusts the disconnection criteria based on vehicle motion state. When the vehicle is moving, the link is maintained as long as the mobile device is within range. When the vehicle is stationary, the system applies additional proximity-based disconnection logic to reduce power consumption while maintaining connection reliability when needed.
Solution Approach 2:
The system continuously monitors vehicle motion state through sensors (accelerometer, GPS) and uses this feedback to adjust connection behavior. The motion state information feeds back to the connection management logic, enabling automatic adaptation between maintaining connection and reducing power consumption based on real-time conditions.
2Use of energy by moving object
If the communication device disconnects when the mobile device exits the vehicle proximity, then power consumption is reduced, but the connection may be interrupted when the user temporarily exits the vehicle while still needing communication
Solution Approach 1:
The disconnection logic dynamically considers vehicle motion state. When the vehicle is moving, connection is maintained for broader proximity. When stationary, stricter disconnection criteria are applied. This dynamic adjustment reduces false disconnections during temporary exits while maintaining power savings during extended absence.
Solution Approach 2:
The system changes the effective communication range parameter based on vehicle motion state. During motion, a larger effective range is used to maintain connection. During stationary periods, a smaller effective range triggers disconnection. This parameter adjustment resolves the contradiction between connection continuity and power consumption.
3Measurement precision
If the communication device requires both motion sensors in the communication device and mobile device to disconnect the link, then the disconnection accuracy is improved, but the device complexity increases
Solution Approach 1:
The system uses the mobile device's motion sensor for multiple purposes: detecting user motion and inferring vehicle motion context. This multi-functional use of existing sensors improves disconnection accuracy without requiring additional dedicated sensors in the mobile device, thus avoiding increased complexity.
Solution Approach 2:
The communication device acts as an intermediary that processes motion information from both devices and makes the disconnection decision. Rather than requiring both devices to have equal sensing capabilities, the system uses the communication device's processing power to interpret sensor data from both ends, achieving high accuracy without symmetric hardware requirements.
Data Source
AI summary
A method and apparatus of determining whether to disconnect a wireless communication link between a communication device disposed in a vehicle and a mobile device is provided. The method comprises determining whether the communication device is moving or not moving, determining whether the mobile device has exited the proximity of the vehicle, and disconnecting the wireless communication link when the communication device is not moving and the mobile device has exited the proximity of the vehicle.