Vehicle Telematics Data Logging with Privacy-Aware Location Filtering
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Solution Overview
Problem
Vehicle telematics systems face challenges in effectively recording and analyzing communication events due to communication failures between vehicles and call centers, which can be attributed to various undeterminable reasons, necessitating a method to log and store telematics events for subsequent analysis while ensuring privacy and security.
Innovation Solution
A data logging method for vehicle telematics systems that detects telematics events, determines if location data logging is enabled, creates data log entries for non-personal calls, and includes vehicle location data, storing these entries for upload when the telematics unit switches from standby to active mode, enabling detailed event tracking and fault diagnosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If telematics events are logged and stored for subsequent analysis, then fault diagnosis and event tracking capabilities are improved, but system complexity and data storage requirements increase
Solution Approach 1:
The system performs preliminary actions by detecting telematics events and creating data log entries in advance, storing them locally in the telematics unit before upload. This ensures data is captured and preserved even when communication with the call center is unavailable, improving reliability without requiring complex real-time processing infrastructure.
Solution Approach 2:
The patent introduces an intermediary mechanism - a local data storage buffer within the telematics unit - that mediates between event detection and remote upload. This intermediary allows the system to decouple the complexity of continuous communication from simple event logging, reducing overall system complexity while maintaining diagnostic capability.
2Measurement precision
If location data is included with telematics events, then event tracking precision is improved, but privacy concerns and data security requirements increase
Solution Approach 1:
The system applies local quality by differentiating between types of telematics events and applying location data logging selectively. Location data is included for certain events (such as communication failures or diagnostic events) while being excluded from others (such as personal calls), thus achieving precise event tracking where needed while minimizing privacy intrusion in appropriate contexts.
3Use of energy by moving object
If the telematics unit operates in standby mode to conserve energy, then energy consumption is reduced, but data upload timeliness deteriorates
Solution Approach 1:
The telematics unit performs preliminary actions by detecting events, creating data log entries, and storing them locally during standby mode. When switched to active mode, the pre-stored data is uploaded promptly. This preliminary data capture and local storage approach allows the system to maintain low energy consumption during standby while ensuring timely upload capability when active, eliminating the trade-off between energy savings and upload timeliness.
Data Source
AI summary
A system and method for data logging of telematics events by a vehicle telematics unit. Upon detection of a telematics event, checks are made to determine if location data logging is enabled and if the telematics event is an incoming personal call. If the location data logging is enabled and the telematics event is not an incoming personal call, then a data log entry is created that includes the current vehicle location; otherwise, a data log entry without any location information is created. Thereafter, the data log entries can be uploaded to a call center for analysis. Procedures for handling data logging during a standby mode of the telematics unit are also provided.