Password Power Switch Circuit Thermal Authentication
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Solution Overview
Problem
Traditional electronic devices lack password protection for power switching, allowing unauthorized access and shutdown, which compromises personal information security and tracking functionality.
Innovation Solution
A password power switch circuit utilizing a thermal energy conversion circuit and a programmable control chip to generate a power-on signal based on sensing temperatures, providing password protection before the device boots into the operating system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional battery or external power source is used to drive the power source switch circuit, then the device can be turned on and off easily, but the device lacks password protection function and is vulnerable to unauthorized access and shutdown
Solution Approach 1:
The patent merges the power source switch circuit with a password verification system. The thermal energy conversion circuit serves dual purposes: it generates power for the control chip and simultaneously acts as the password input interface. When the correct thermal pattern is detected, the control chip generates a power-on signal, thus combining power management and security authentication into a single integrated system.
Solution Approach 2:
The thermal energy conversion circuit performs multiple functions: it serves as both the power source for the programmable control chip and the password input interface. This multi-functional design eliminates the need for separate battery power management and password protection circuits, resolving the contradiction between enhanced security and device complexity.
2Reliability
If password protection is activated only after device boot, then the device can operate normally in the operating system, but personal information security is compromised before the operating system loads
Solution Approach 1:
The patent implements preliminary password verification before the operating system boots. The programmable control chip verifies the thermal password pattern during the power-on phase, before the main processor and operating system are activated. This ensures that even if the device is stolen or accessed unauthorized, the operating system and personal information remain protected from the very beginning.
3Ease of operation
If combination keys are used to shut down the device forcibly, then the device can be turned off in emergency situations, but thieves can use the same combination keys to shut down the device and turn off positioning tracking
Solution Approach 1:
The patent applies different authentication requirements for different operations. Normal shutdown requires standard password verification, while emergency shutdown or power-off operations require a different, more stringent authentication process. This local differentiation of access control ensures that thieves cannot use simple combination keys to shut down the device and disable tracking, while still allowing legitimate users to perform emergency operations with proper authentication.
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 solution effectively prevents unauthorized power-on or power-off of electronic devices, enhancing personal information security and maintaining tracking functionality, even when stolen.
Implementation Method 1
a thermal energy conversion circuit configured to generate a plurality of sensing temperatures
Data Source
AI summary
A password power switch circuit for an electronic device includes a thermal energy conversion circuit and a programmable control chip. The thermal energy conversion circuit is used for generating a plurality of sensing temperatures. The programmable control chip is coupled to the thermal energy conversion circuit for storing a password and generating a power-on signal to a central processing device of the electronic device according to a plurality of locations corresponding to the plurality of sensing temperatures and a plurality of locations corresponding to the password. The central processing device determines at least one operation associated with the electronic device according to the power-on signal.