Voice Call Switching via Acceleration and Distance Detection
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Solution Overview
Problem
In mobile communication environments, especially in vehicles, existing voice call systems face challenges in efficiently managing voice calls due to changes in user privacy and experience when the vehicle is driven by different individuals, leading to potential leakage of user privacy and reduced convenience.
Innovation Solution
A method and apparatus that utilize acceleration and distance sensors to detect changes in a mobile terminal's movement and proximity to a target object, allowing for the establishment, termination, or switching of voice calls between different types, ensuring audio information is input or output through either the vehicle's or the mobile terminal's audio devices based on these conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pre-configured information is used to connect mobile terminal to car audio devices, then voice call convenience is improved, but user privacy security deteriorates
Solution Approach 1:
The system dynamically adjusts voice call handling mode based on real-time acceleration sensor data. When the car is stationary (low acceleration), voice calls use the car's audio devices for convenience. When the car is moving (high acceleration), voice calls switch to mobile terminal audio devices to protect privacy. This dynamic adaptation resolves the contradiction between convenience and privacy security.
Solution Approach 2:
The system changes the parameter of audio device selection based on acceleration threshold values. By comparing real-time acceleration data against predefined thresholds, the system switches between two operational states: using car audio devices when acceleration is below the threshold, and using mobile terminal audio devices when acceleration exceeds the threshold. This parameter-based control enables adaptive privacy protection while maintaining call convenience.
2Reliability
If car audio devices are used for voice calls, then call quality is improved, but privacy security deteriorates
Solution Approach 1:
The system dynamically selects audio devices based on real-time acceleration conditions. When the car is stationary or moving slowly (acceleration below threshold), it uses the car's high-quality audio devices for superior call quality. When the car is moving quickly (acceleration above threshold), it switches to the mobile terminal's audio devices to prevent privacy leakage. This dynamic selection resolves the contradiction between call quality and privacy security.
3Ease of operation
If voice call functions are always available in car, then user convenience is improved, but energy consumption increases
Solution Approach 1:
The system implements periodic monitoring of acceleration sensor data to determine whether to activate voice call functions. Instead of continuously activating voice calls, the system periodically checks acceleration levels and only enables car audio device usage when conditions are appropriate (low acceleration). This periodic activation pattern reduces energy consumption while maintaining user convenience when needed.
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 enhances the efficiency and convenience of voice call management in vehicles by determining the appropriate audio input/output device based on the user's actions, thereby improving user privacy and experience.
Implementation Method 1
detecting an acceleration characteristic value of a mobile terminal
Implementation Method 2
detecting a characteristic value of a distance from the mobile terminal to a target object
Data Source
AI summary
The present invention relates to a voice call establishing method and apparatus. The method includes: receiving a voice call request, and generating an internal trigger signal according to the voice call request; detecting an acceleration characteristic value of a mobile terminal and/or a characteristic value of a distance from the mobile terminal to a target object within a preset time threshold; and if an initial value of the acceleration characteristic value is a first characteristic value and does not change within the preset time threshold, establishing a first voice call; and if the acceleration characteristic value changes from the first characteristic value to a second characteristic value within the preset time threshold, and the characteristic value of the distance changes from a first distance characteristic value to a second distance characteristic value, establishing a second voice call.