Dashcam Removal Detection With GNSS Evidence Tracking
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Solution Overview
Problem
In the event of an accident, there is a risk that malicious parties may steal or destroy dashboard cameras to erase evidence, making it difficult to identify the responsible party.
Innovation Solution
A recording control apparatus that includes a removal detection unit to identify when the device is taken away, a location information acquisition unit to track its location, and a communication unit to transmit this information to another apparatus, enabling identification of the party who took the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the recording apparatus is left mounted on the mobile object after an event, then the event record data remains secure, but the apparatus cannot provide location information to identify the party who takes it away
Solution Approach 1:
The system performs preliminary actions by detecting removal of the recording apparatus from the mobile object and automatically transmitting location information to another apparatus before the malicious party can destroy the device or data. This proactive approach ensures location information is captured and transmitted in advance, resolving the contradiction between maintaining simplicity and preventing information loss.
2Reliability
If the recording apparatus includes removal detection and location tracking functions, then identification of the malicious party is enabled, but the device complexity increases
Solution Approach 1:
The recording apparatus integrates multiple functions including removal detection, location information acquisition, and automatic transmission to a single system. By making the device multi-functional, the system achieves reliable evidence preservation through removal detection and location tracking while avoiding the need for separate independent systems, thus managing complexity more effectively.
Solution Approach 2:
The recording apparatus automatically detects its own removal from the mobile object, acquires its location information, and transmits this data to another apparatus without requiring external intervention. This self-service capability enhances reliability by ensuring evidence preservation through automated actions while reducing the operational complexity for users.
3Loss of time
If the recording apparatus transmits location information immediately upon removal detection, then the malicious party can be identified quickly, but energy is consumed during the transmission process
Solution Approach 1:
The system performs preliminary action by immediately transmitting location information upon detecting removal of the recording apparatus. This ensures quick identification of the malicious party by capturing and transmitting location data before the party can move far or destroy the device, accepting energy consumption as a necessary trade-off for rapid response and evidence preservation.
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 the identification of the party who has taken away the recording apparatus after an event, by tracking its location and transmitting this information to another device.
Implementation Method 1
a GNSS reception unit configured to output a GNSS reception signal to the location information acquisition unit
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 removal detection unit (181) for detecting that a recording apparatus (10) is removed from the mobile object by acquiring a signal indicating that the recording apparatus (10) including at least the recording unit (160) is removed from the mobile object, a location information acquisition unit (129) for acquiring location information of the recording apparatus, and a communication control unit (171) for transmitting the location information acquired by the location information acquisition unit to another apparatus when the removal of the recording apparatus is detected by the removal detection unit within a predetermined time period after the event detection unit detects the event.