Low Voltage Control System Flash Memory Protection
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Solution Overview
Problem
Conventional low voltage control systems for electronic devices fail to prevent data disorder and abnormal operations due to insufficient voltage, as they cannot effectively manage flash memory access and often consume additional battery power with blinking lights without resolving the root cause.
Innovation Solution
A low voltage control system with a voltage detection module and control module that cuts off access channels if the voltage falls below a threshold, preventing data disorder by limiting flash read/write permissions and holding the device in a half-started state during boot procedures, while also using a blinking LED to alert users when voltage is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a blinking light is used to remind users of low battery, then user awareness is improved, but battery power consumption increases
Solution Approach 1:
The patent uses a disposable, low-power alert mechanism by implementing a single LED blink notification instead of continuous monitoring or repeated alerts. The LED blinks only once to notify the user of low voltage conditions, then the system enters a protected state, minimizing energy consumption while still achieving user awareness.
2Adaptability or versatility
If flash memory access is allowed during low voltage, then operational flexibility is maintained, but data disorder and abnormal operations occur
Solution Approach 1:
The patent applies preliminary anti-action by detecting voltage levels before flash memory access operations are initiated. When low voltage is detected, the system proactively disables flash access permissions in advance, preventing potential data disorder and abnormal operations before they can occur. This preemptive measure ensures data integrity while maintaining operational flexibility for other non-flash operations.
Solution Approach 2:
The patent introduces an intermediary voltage detection and control mechanism that mediates between the power supply and flash memory access. The voltage detection module monitors power levels and the control module acts as an intermediary gatekeeper, selectively enabling or disabling flash access based on voltage conditions, thus protecting data integrity without completely restricting system operation.
3Reliability
If voltage threshold detection is implemented, then data protection is improved, but system complexity increases
Solution Approach 1:
The patent segments the voltage protection function into distinct modular components: a voltage detection module that monitors power levels and a control module that manages flash access permissions based on detected voltage. This segmentation allows each module to perform its specific function independently, making the overall system easier to implement and maintain while providing robust data protection through threshold-based control.
Data Source
AI summary
A low voltage control system (1), a low voltage protection method for an electronic device (500), and a computer program product thereof are disclosed. The electronic device (500) includes a power supply (510) and a memory (530). The low voltage protection method for the electronic device (500) includes the following steps: detecting a current voltage of the power supply; determining whether the current voltage is lower than a first voltage threshold; and if the voltage is lower than the first voltage threshold, a control module (10) cutting off multiple access channels (531).