Vehicle Telematics Crash Documentation From Sensor Data

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Solution Overview

Problem

Reconstructing vehicle crashes after the fact is difficult, time-consuming, and often inaccurate, as existing methods rely on post-crash measurements rather than real-time data.

Innovation Solution

A vehicle telematics system that automatically generates a human-readable documentation of a vehicle crash by analyzing telematics data from sensors such as accelerometers and GPS, calculating crash metrics, and determining a vehicle crash period to provide a detailed narrative of the crash.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If post-crash measurements are used to reconstruct vehicle crashes, then experts can analyze crash events, but the process becomes difficult, time-consuming, and often inaccurate

Engineering Contradiction:
Improvecrash reconstruction accuracyVSAvoidcrash analysis time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary action by collecting and storing telematics data (acceleration, GPS location, vehicle status) continuously before crashes occur. This pre-captured data eliminates the need for time-consuming post-crash reconstruction, providing accurate crash metrics immediately when needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The telematics device acts as an intermediary between the vehicle's operational systems and the crash analysis process. It continuously monitors and records vehicle dynamics data, serving as a mediator that provides pre-processed, accurate crash information without requiring expert reconstruction efforts.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If detailed crash data collection is implemented using telematics sensors, then accurate crash documentation is achieved, but device complexity increases

Engineering Contradiction:
Improvecrash documentation accuracyVSAvoidtelematics system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The telematics device performs multiple functions using a single integrated system: it monitors vehicle location via GPS, measures acceleration and impact forces with accelerometers, tracks vehicle status, and stores all data locally. This multi-functionality achieves reliable crash documentation without requiring separate complex systems for each measurement type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The telematics device is self-sufficient by continuously collecting, processing, and storing crash-relevant data autonomously without requiring external intervention. The device automatically detects crashes, records pre and post-crash metrics, and preserves data even when vehicle power is lost, eliminating the need for additional complex external monitoring equipment.

Inventive Principle:
Principle #25Self-service

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

Enables accurate and efficient documentation of vehicle crashes, providing valuable insights into crash dynamics, airbag deployment, and vehicle maneuvers, which can improve safety analysis and insurance claims processing.

Implementation Method 1

Telematics data is received that has been produced by one or more sensors associated with a telematics device at the vehicle

Methodology Applied
Scientific EffectAcceleration measurement: Accelerometer

Implementation Method 2

Advances in vehicle telematics make it possible to collect vehicle motion data before, during, and after a crash

Methodology Applied
Scientific EffectGPS satellite signal reception:

Implementation Method 3

Using the crash metrics component, a first rate of altitude change and a second rate of altitude change are calculated

Methodology Applied
Scientific EffectBarometric pressure measurement:

Data Source

PatentUS12202422B2Vehicle telematics of vehicle crashes
Publication Date: 2025.01.21 CAMBRIDGE MOBILE TELEMATICS INC
  • US12202422B2 patent drawing
  • US12202422B2 patent drawing
  • US12202422B2 patent drawing

AI summary

Among other things, a documentation of a crash involving a vehicle is generated automatically. Telematics data is received that has been produced by one or more sensors associated with a telematics device at the vehicle. Based on the telematics data, a vehicle crash period is determined that begins at a start time and ends at an end time of the vehicle crash. Based on the telematics data, one or more metrics are determined associated with the vehicle during the vehicle crash period. Based on one or more metrics, a human-readable documentation of the vehicle crash is generated automatically.