Event Recording Control for Stolen Dashcam Data Backup
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Solution Overview
Problem
Existing dashboard cameras face challenges in securely transmitting event record data and location information to external apparatuses, as malicious parties may steal or destroy the device, making it difficult to verify accident circumstances.
Innovation Solution
A recording control apparatus that detects events using acceleration data, stores relevant data securely, and transmits location information or event records to an external apparatus only when the device is taken away beyond a predetermined distance or time post-event, preventing unnecessary data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If event record data is transmitted to external apparatus to prevent loss, then data security is improved, but unnecessary data transmission increases
Solution Approach 1:
The system performs preliminary actions by storing acceleration data and location information in advance, and by determining event occurrence thresholds before actual transmission is needed. When an event is detected, the system has already prepared the necessary data structures and can quickly transmit only relevant information without unnecessary data transfer.
Solution Approach 2:
The system changes parameters by dynamically adjusting transmission criteria based on detected event characteristics. Instead of transmitting all recorded data, the system modifies transmission parameters to send only event-related data when acceleration thresholds are exceeded, thereby reducing unnecessary data transmission while maintaining security.
2Loss of information
If all acceleration events are transmitted to external apparatus, then data completeness is improved, but transmission efficiency decreases
Solution Approach 1:
The system extracts only the essential information needed for accident investigation by separating relevant event data from routine acceleration measurements. When acceleration exceeds predefined thresholds indicating an event, the system extracts and transmits only the relevant portion (event record data and location information) rather than all accumulated data, thereby maintaining completeness for actual events while improving efficiency.
Solution Approach 2:
The system applies local quality by differentiating the treatment of different data types and transmission conditions. Routine acceleration data is stored locally without transmission, while event-related data meeting specific criteria is transmitted to external apparatus. This localized approach ensures data completeness for events while avoiding unnecessary transmission of routine data.
3Reliability
If device is made secure against theft, then data protection is improved, but device complexity increases
Solution Approach 1:
The system introduces an intermediary approach by using external apparatus as a secure backup destination for event data. Instead of relying solely on physical security of the device itself, the system uses communication protocols and external storage as intermediaries to protect data. This distributes the security function across multiple components without significantly increasing the complexity of the device core.
Solution Approach 2:
The system performs preliminary protective actions by automatically determining event occurrence and preparing data for transmission before the device may be stolen or compromised. The acceleration threshold determination and event detection mechanisms are pre-configured, allowing the system to protect data proactively without requiring complex real-time decision-making or additional security hardware.
Data Source
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AI summary
A recording control apparatus which can appropriately transmit location information of the recording apparatus or event record data to another apparatus when the recording apparatus is taken away without unnecessarily transmitting data is provided. A recording control unit (123) stores photographing data for a predetermined time period previously set based on detection of an event in a recording unit (160) as event record data. A location information acquisition unit (129) acquires location information of a recording apparatus (10). A communication control unit (171) performs transmits transmission target information to an external apparatus (20), which is another apparatus, when it is detected that a location of the recording apparatus (10) is separated from a location where the event is detected by a predetermined distance or more within a predetermined time period after the event is detected.