Casing-Triggered Power Cutoff for UAV Data Erasure
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Solution Overview
Problem
Existing methods for preventing unauthorized data extraction from unmanned vehicles are vulnerable to hacking, power disruptions, and physical damage, leading to incomplete erasure of sensitive information.
Innovation Solution
A power source unit outside the casing supplies power through a power line to volatile regions within the casing, which is interrupted by an opening-closing unit and switch when the casing is opened, ensuring complete erasure of circuit information, programs, and data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encryption methods are used to protect data and programs, then data security is improved, but data may still be extracted by hacking techniques such as power analysis attacks and reverse engineering
Solution Approach 1:
The patent applies preliminary action by erasing data and programs from the volatile region before the unmanned vehicle can be seized or hacked. The erasure mechanism is pre-configured to automatically execute when specific conditions are met (casing opened, power interrupted, or seizure detected), preventing any potential extraction by hacking techniques including power analysis attacks and reverse engineering.
Solution Approach 2:
The patent converts the harmful effect of power interruption (which could allow data extraction) into a beneficial erasure mechanism. When power is cut off before or during normal operation, instead of risking data extraction, the system uses the power loss to trigger complete erasure of data and programs from the volatile region, turning a security vulnerability into a protective feature.
2Reliability
If data and programs are erased when anomaly is detected or power is cut off, then unauthorized extraction is prevented, but data may remain if power is interrupted before erasure processing completes or apparatus is destroyed
Solution Approach 1:
The patent applies self-service by designing the erasure mechanism to automatically execute without external control when specific conditions are met. The system monitors for conditions such as casing opening, power interruption, or seizure detection, and autonomously triggers the erasure of data and programs from the volatile region, ensuring complete erasure even if the apparatus is subsequently destroyed.
Solution Approach 2:
The patent applies beforehand cushioning by preparing the erasure mechanism in advance and positioning it to automatically execute when specific conditions occur. The erasure function is pre-configured to activate immediately upon detecting conditions such as power loss or casing opening, ensuring that data is erased before any potential extraction can occur, even if the apparatus is then destroyed.
3Loss of information
If power source unit is placed outside the casing and power line is physically separated when opening-closing unit is opened, then complete erasure of data is achieved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the power supply system into separate components: a power source unit positioned outside the casing and a volatile region inside the casing connected by a power line. The opening-closing unit is segmented to include a switch that can physically separate the power line, creating distinct functional zones that enable complete data erasure while managing complexity through modular design.
Data Source
AI summary
An unauthorized readout prevention mechanism includes a power source unit provided outside a casing provided in an unmanned vehicle, a power line for supplying power from the power source unit to a volatile region inside the casing, an opening-closing unit provided in the casing, and a switch that physically separates the power line and shuts off supply of power to inside the casing when the opening-closing unit is opened.