Telematics APN Update via Pre-stored Admin Credentials
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Solution Overview
Problem
Telematics devices in vehicles often fail to update their access point name (APN) settings in wireless networks when power is turned off for an extended period due to weak signals, shadow areas, or long-term parking, leading to connectivity issues.
Innovation Solution
A method and program for rapidly updating APN settings by checking APN server accessibility, using pre-stored administration APNs to determine necessary updates, and transmitting/receiving data via the APN server, even when power is off for an extended time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the telematics device waits for periodic APN change alarm messages from the base station, then power consumption is reduced during normal operation, but APN updates fail when power is turned off for long periods due to weak signals or shadow areas
Solution Approach 1:
The telematics device proactively checks APN server accessibility and performs APN updates before the periodic alarm message would trigger, rather than passively waiting. When the device powers on after a long period, it immediately attempts to access the APN server using the pre-stored administration APN, obtaining updated APN information before normal operation resumes. This preliminary action ensures APN currency without relying on potentially missed periodic messages during power-off periods.
2Productivity
If the telematics device uses pre-stored administration APN to check server accessibility, then APN updates can be performed rapidly after power restoration, but additional processing steps are required compared to normal periodic updates
Solution Approach 1:
The pre-stored administration APN serves as an intermediary credential that enables the telematics device to authenticate with the APN server without requiring the vehicle owner's mobile device or complex authorization procedures. This intermediary APN allows direct, rapid server access and APN information retrieval, simplifying the overall update process despite the additional initial check step.
3Reliability
If the device attempts to access the APN server using old APN after long power-off, then connectivity issues are detected, but the device cannot obtain updated APN information without the administration APN fallback mechanism
Solution Approach 1:
The APN update mechanism dynamically adapts its behavior based on the power-on context. After long power-off periods, the system automatically switches from passive periodic update mode to active server-check mode using the administration APN. This dynamic adjustment ensures reliable APN updates in varying conditions without requiring manual configuration changes or reducing method flexibility.
Data Source
AI summary
Disclosed herein is an access point name (APN) access method including: (a) checking whether an APN server is accessible via a wireless network connected to a telematics device that is powered on when an amount of time during which an APN change alarm message can be received has elapsed; (b) checking whether an APN update is necessary using an administration APN pre-stored in the telematics device when the APN server is not accessed, and acquiring APN update data from the APN server when the APN server is accessed; and (c) transmitting and receiving data between the telematics device and a data server using the acquired APN update data.