Timestamped Route Data Processing for Close Contact Detection

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Solution Overview

Problem

Existing navigation devices lack the capability to detect close contact with infected individuals or witnesses to incidents, such as traffic accidents, due to their inability to store and compare route data with timestamp effectively.

Innovation Solution

A moving route processing device that creates and records route data with timestamp, compares it with data from a network database, and displays a message if a close contact state is determined, enabling users to identify potential infections or incident witnessing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional navigation devices only store position information without timestamp, then the device structure remains simple, but the device cannot detect close contact with infected individuals or witnesses to incidents

Engineering Contradiction:
Improvedetection capabilityVSAvoiddata structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by storing position information with timestamp in advance during normal navigation operations. This pre-stored timestamped route data enables subsequent detection of close contact with infected individuals or identification of incident witnesses without requiring complex real-time processing, thus improving reliability while maintaining relatively simple device structure.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If the device stores and compares detailed route data with timestamp, then the detection accuracy improves, but the data processing complexity and memory requirements increase

Engineering Contradiction:
Improveroute matching precisionVSAvoiddata processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system creates simplified copies of route data by storing position information with timestamp in a structured format. Instead of processing complex raw navigation data, the system uses these standardized timestamped position records for comparison, achieving high route matching precision while keeping data processing relatively simple through efficient data representation.

Inventive Principle:
Principle #26Copying

3Reliability

If the device continuously monitors and stores position data with timestamp, then the detection capability improves, but the energy consumption increases

Engineering Contradiction:
Improvecontact detection reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system implements periodic action by storing position information with timestamp at specific intervals during navigation rather than continuously monitoring. This periodic data collection maintains sufficient detection reliability for identifying close contact with infected individuals or incident witnesses while significantly reducing energy consumption compared to continuous monitoring.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS8731828B2Moving route processing device and information providing system using this moving route processing device
Publication Date: 2014.05.20 MITSUBISHI ELECTRIC MOBILITY CORP
  • US8731828B2 patent drawing
  • US8731828B2 patent drawing
  • US8731828B2 patent drawing

AI summary

Disclosed is a moving route processing device provided with: a route data creating unit for adding date and time information showing a current date and time to position information showing a current position to create route data with timestamp; a route data recorder for recording the route data with timestamp created by the route data creating unit; a communication processing unit for acquiring predetermined data from a database connected to a network; a route comparing unit for comparing the predetermined data acquired by the communication processing unit with the route data with timestamp recorded in the route data recorder; and a display processing unit for, when it is determined from the comparison by the route comparing unit that a close contact state existed, creating and displaying a message showing that a close contact state existed.