Light Guiding Device with Barrier Objects for Disassembly Detection
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Solution Overview
Problem
Equipment manufacturers face challenges in ensuring that important data stored in electronic devices is protected from unauthorized access and theft by preventing unauthorized disassembly, which could lead to data deletion or destruction.
Innovation Solution
The electronic device incorporates a light guiding device with photosensitive elements and a detection unit that generates and compares induction signals to determine authorized disassembly, triggering a software self-destruct program if unauthorized, using barrier objects within light conducting channels to maintain signal integrity during assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective structure is installed to prevent unauthorized disassembly, then data security is improved, but device complexity increases
Solution Approach 1:
The light guiding device incorporates barrier objects (magnetic or conductive materials) nested within the light conducting channels of the PCB assembly. These barrier objects are positioned to block light paths between light sources and photosensitive elements, creating a compact security mechanism integrated into the existing device structure without requiring separate protective components.
Solution Approach 2:
The patent replaces traditional mechanical locking mechanisms with an optical detection system. Instead of using physical locks or seals to prevent disassembly, the system uses light conducting channels with barrier objects that detect changes in light transmission when the device is opened, triggering software self-destruct programs to protect data.
2Measurement precision
If barrier objects are placed in light conducting channels to detect disassembly, then detection precision is improved, but manufacturing precision requirements increase
Solution Approach 1:
The barrier objects are designed with specific magnetic or conductive properties that change the optical characteristics of the light conducting channels. When positioned in the channels, these barrier objects alter light transmission parameters detectable by photosensitive elements, enabling precise detection of disassembly events through changes in induction signals without requiring extremely tight manufacturing tolerances.
Solution Approach 2:
The barrier objects serve as intermediary elements between the light sources and photosensitive elements. These intermediaries (magnetic or conductive materials) modify the light path in a detectable way, allowing the system to sense disassembly events through indirect optical changes rather than requiring direct mechanical sensing, thereby reducing manufacturing precision requirements.
3Reliability
If software self-destruct program is activated to protect data, then data security is improved, but ease of operation deteriorates
Solution Approach 1:
The system implements preliminary anti-action by pre-configuring software self-destruct programs that automatically activate upon detecting unauthorized disassembly. This preemptive measure ensures data protection before any actual data theft or damage can occur, automatically preventing harmful actions without requiring user intervention or judgment.
Solution Approach 2:
The light guiding device provides real-time feedback about the device's assembly state to the control system. When photosensitive elements detect changes in light transmission indicating disassembly, this feedback triggers the software self-destruct program, creating a closed-loop security system that automatically responds to security threats.
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
This solution effectively prevents unauthorized access and data theft by ensuring only authorized disassembly can restore the original signal configuration, thereby safeguarding critical data within the device.
Implementation Method 1
The light guiding device comprises a plurality of light sources, a plurality of photosensitive elements, a detection unit, and a processing unit. The light guiding device also comprises a printed circuit board (PCB) having one or more light conducting channels therein
Implementation Method 2
The photosensitive elements output different induction signals according to whether photosensitive elements receive light generated by the light sources
Data Source
AI summary
A security device in an electronic device which protects against unauthorized disassembly includes light sources, a plurality of photosensitive elements, a detection unit, a storage unit, a processor, and light guiding devices. Light conducting channels are provided between the light sources and the induction elements. Barrier objects that block light are installed at certain first light guiding channels of the light guiding channels, and are removed from the first light conducting channels when the electronic device is disassembled, so that induction signals output by the photosensitive elements are changed from the model or original digitally-recorded signals.