Dual PCB Storage Layout for Collision Data Protection in Vehicles
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Solution Overview
Problem
There is a need for data protection and control signal generation in autonomous driving vehicles during emergency situations such as collisions, as existing technologies do not adequately address data preservation and continuous functionality in the face of physical impacts.
Innovation Solution
A dual storage device system is implemented, comprising a first storage device on a first PCB with a shock sensor and a second storage device on a separate PCB, each with its own shock sensor, allowing data transfer and control signal generation between them to ensure data preservation and continuous functionality during impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single storage device is used in the vehicle, then the device complexity is low, but the data protection capability during collision is insufficient
Solution Approach 1:
The storage system is divided into multiple independent storage devices (first storage device and second storage device), each mounted on separate PCBs. This segmentation ensures that if one storage device is damaged during collision, the other can still preserve data, thereby improving data protection capability while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The system implements prior cushioning by pre-configuring multiple storage devices with different data storage functions and equipping each with shock sensors. Before a collision occurs, the system is already prepared with redundant storage capacity and impact detection capability, enabling automatic data protection actions when impact is detected
2Reliability
If shock sensors are added to each storage device, then the data protection during impact is improved, but the device complexity increases
Solution Approach 1:
The shock sensors are designed with multi-functionality, serving both as impact detection devices for data protection and as triggers for controlling storage operations. Each sensor not only detects collision but also generates control signals that coordinate data transfer between storage devices, reducing the need for additional dedicated control components and thereby limiting the increase in overall system complexity
3Reliability
If data is stored in multiple storage devices, then the data preservation capability is improved, but the data management complexity increases
Solution Approach 1:
The system implements feedback mechanisms where shock sensors continuously monitor impact conditions and provide real-time information to storage controllers. Based on this feedback, the controllers automatically adjust data transfer operations between storage devices, enabling intelligent data management that adapts to collision conditions without requiring complex external intervention or manual data management protocols
4Speed
If automatic control signals are generated during collision, then the response time is improved, but the control system complexity increases
Solution Approach 1:
The control system is pre-configured with predetermined control signals and data transfer protocols before collision occurs. When the shock sensor detects impact, these pre-programmed actions are automatically executed, enabling rapid response without requiring complex real-time decision-making algorithms or extensive processing during the critical post-collision period
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
The system effectively protects data and maintains critical vehicle functions by transferring data between storage devices and controlling operations to prevent interruptions and malfunctions during collisions.
Implementation Method 1
a first shock sensor that senses an impact of the first storage device to output a first sensor signal
Data Source
AI summary
A storage device comprises first and second storage devices mounted on respective first and second PCBs (Printed Circuit Boards) that are separated from each other, the first and second PCBs configured to store different data. The first storage device includes a first storage controller, and a first shock sensor that senses an impact of the first storage device to output a first sensor signal. The second storage device includes a second shock sensor different from the first shock sensor, and senses an impact of the second storage device to output a second sensor signal. The first storage controller outputs a first internal control signal that controls an internal operation of the first storage device based on the first sensor signal. The first storage device and the second storage device transmit data to each other based on the first sensor signal and the second sensor signal.