Touch Screen Power-On Failure Detection via IIC Signal Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices often experience unexplained touch failure at power-on, which can be due to hardware damage or low-probability software issues, leading to poor user experience and inconvenience, as the problem typically resolves itself after restarting but lacks a systematic solution during startup.
Innovation Solution
A method involving a main control chip that powers on the touch screen, reads the ID pin, downloads firmware through IIC, determines the normalcy of touch screen interruptions and IIC signals, and performs power-on or restart operations accordingly, with preset values for repeated restarts if abnormalities are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the touch screen is powered on without detection, then the power-on process is simple and fast, but touch failure occurs at power-on due to software issues
Solution Approach 1:
The main control chip performs preliminary detection of the touch screen interruption signal and IIC communication signal before powering on the touch screen. This preliminary action ensures that the touch screen is properly initialized and communicates correctly with the main board, preventing touch failures at power-on without requiring complex user intervention or repeated restarts.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the touch screen interruption signal and IIC communication signal. The main control chip detects the status of these signals and adjusts the power-on process accordingly, creating a closed-loop control system that ensures reliable touch screen operation while maintaining a relatively simple overall process.
2Reliability
If the touch screen is restarted multiple times to resolve touch failure, then touch operation reliability is improved, but user time is wasted and user experience deteriorates
Solution Approach 1:
The detection of touch screen interruption signal and IIC communication signal is performed before the touch screen is powered on, preventing touch failures from occurring in the first place. This eliminates the need for users to experience repeated restarts and wait for the system to self-correct, thereby saving user time while ensuring reliable touch operation.
3Reliability
If detection and firmware downloading are performed at power-on, then touch screen reliability is improved, but the power-on time increases
Solution Approach 1:
The detection of touch screen interruption signal and IIC communication signal is performed as a preliminary step before the touch screen is fully powered on. By checking the communication status in advance, the system can identify and address potential issues before they affect touch screen operation, ensuring reliability while minimizing the impact on power-on time through efficient detection protocols.
Data Source
AI summary
Disclosed are a method, a system, and an intelligent terminal of processing the touch failure of the touch screen after it is powered on. The method includes: powering on the touch screen by a main board; reading an ID pin of the touch screen by a main control chip upon detecting a touch operation of the user clicking the touch screen; downloading software firmware by the main control chip to the chip of the touch screen through an IIC; determining, by the main control chip, whether interruption or an IIC signal of the touch screen is normal by the main control chip; if the interruption of the touch screen is normal, performing a power-on operation by the main control chip; and if the IIC signal of the touch screen is normal, performing a power-on operation by the main control chip.