Dashcam Event Data Transfer Triggered by Distance After Theft
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Solution Overview
Problem
Dashboard cameras may have their event record data stolen or destroyed, making it difficult to check the circumstances of an accident, and existing methods of transmitting data inefficiently transmit non-accident-related data.
Innovation Solution
A recording control apparatus that detects events, stores data for a predetermined time, calculates distance from the event, and transmits data to another apparatus when the distance exceeds a predetermined threshold after the event.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all event record data is transmitted to another apparatus, then the data cannot be lost even if the recording apparatus is stolen, but unnecessary data is transmitted reducing efficiency
Solution Approach 1:
The system changes the parameter of data transmission by introducing distance and time conditions. Instead of transmitting all event data unconditionally, the system only transmits data when the distance between the recording apparatus and the mobile object exceeds a predetermined threshold within a predetermined time period after event detection. This conditional parameter change resolves the contradiction by ensuring data security for actual theft cases while avoiding unnecessary transmissions for normal situations.
2Ease of operation
If the recording apparatus is kept close to the mobile object, then normal operations are maintained, but the data cannot be transmitted when the apparatus is stolen
Solution Approach 1:
The system implements feedback by continuously monitoring the distance between the recording apparatus and the mobile object, and the time elapsed since event detection. When the feedback conditions (distance exceeding threshold within time period after event) are met, the system automatically triggers data transmission. This feedback mechanism allows normal operations to continue when the apparatus remains close to the vehicle, while automatically protecting data when theft is detected through the distance-time condition.
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
Ensures secure transmission of event record data to another apparatus when the camera is taken away, preventing unnecessary data transmission and enabling efficient data retrieval.
Implementation Method 1
a GNSS reception unit configured to output a GNSS reception signal to the distance calculation unit
Implementation Method 2
a distance calculation unit configured to calculate a distance between a recording apparatus including at least the recording unit and the mobile object
Data Source
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AI summary
A recording control apparatus (100) includes a recording control unit (123) for storing photographing data corresponding to an event of a mobile object as event record data in a recording unit, a distance calculation unit (131) for calculating a distance between a recording apparatus (10) including at least the recording unit (160) and the mobile object,and a communication control unit (171) for transmitting the event record data stored in the recording unit when the distance calculated by the distance calculation unit becomes equal to or greater than a predetermined distance within a predetermined time period after the event detection unit (128) detects the event.