Telematics Phone Number Switching via Server
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Solution Overview
Problem
Conventional telematics communication systems require drivers to subscribe to separate mobile communication network services for their mobile terminals and telematics devices, leading to increased mobile communication service fees.
Innovation Solution
A method and system that allow a telematics device to switch its phone number with a selected mobile terminal's number using a switching server, enabling voice call, SMS, and TCP services when the ignition is on, and reverting to the mobile terminal's services when the ignition is off, thereby eliminating the need for a separate telematics device network subscription.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a driver subscribes to separate mobile communication network services for both mobile terminal and telematics device, then both devices can independently provide communication services, but mobile communication service fees increase
Solution Approach 1:
The patent merges the communication services of the mobile terminal and telematics device by enabling phone number switching between the two devices through a switching server. The driver selects which device should receive calls from a predefined list, allowing one service number to be shared dynamically between devices rather than requiring separate subscriptions.
Solution Approach 2:
The switching server provides universal service by handling call routing for both the mobile terminal and telematics device through a single subscription. The system allows the same phone number to be universally accessible from either device based on driver selection, making the communication service multi-functional across different devices.
2Adaptability or versatility
If a telematics device uses a separate phone number, then it can independently provide voice call services, but the driver must maintain two separate mobile communication network subscriptions
Solution Approach 1:
The system combines the phone number resources of the mobile terminal and telematics device into a single shared resource managed by the switching server. Instead of maintaining separate numbers and subscriptions, the driver manages one subscription that can be switched between devices, simplifying the overall system structure.
Solution Approach 2:
The switching server acts as an intermediary between the mobile network and the two devices. It receives call requests for the shared phone number and routes them to the currently selected device based on driver preferences stored in a predefined list, eliminating the need for separate network subscriptions while maintaining device independence.
3Loss of energy
If the telematics device switches to use the mobile terminal's phone number, then communication costs are reduced, but the mobile terminal loses its ability to receive voice calls during switching
Solution Approach 1:
The system implements dynamic phone number assignment where the active device can change based on driver selection. The switching server maintains a predefined list allowing the driver to switch which device receives calls at any time, making the system adaptable to different situations while maintaining cost efficiency through single subscription usage.
Solution Approach 2:
The system changes the operational parameter of phone number assignment from static (each device having its own fixed number) to dynamic (one number shared between devices with switchable assignment). This parameter change reduces communication costs while the switching mechanism ensures voice call availability is maintained on the active device.
Data Source
AI summary
A method for providing telematics communications is provided comprising: sending an ignition-on message to a switching server by a telematics device, when an ignition is turned on; sending a switching phone list to the telematics device by the switching server; sending to the switching server, by the telematics device, information about a mobile terminal that a driver or passenger selects from the switching phone list and an authentication number that the driver or passenger inputs; and sending a switching setting result to the mobile terminal by the switching server after performing user authentication by using the authentication number and performing switching setting to allow a telephone number assigned to the selected mobile terminal to be switched to that of the telematics device.