Technical issues and solutions for industrial control contactless integrated machines:
When operating an industrial control contactless machine, issues such as settings problems or hardware malfunctions often lead to the contact screen not responding or malfunctioning. So, what are the main problems, and how should they be handled?
1. Contact is precise in some areas, but deviates in others. (Industrial PC)
This phenomenon is caused by the accumulation of dust or scale on the acoustic reflection stripes around the perimeter of the acoustic wave contact screen, which affects the transmission of acoustic signals.
Troubleshooting method: Clean the contact screen, paying special attention to cleaning the acoustic reflection stripes on all four sides of the contact screen. The power to the contact screen control card should be disconnected during cleaning.
2. The area touched by the finger does not coincide with the mouse cursor.
This issue mainly occurs after installing the driver, when calibrating the alignment, where the target is not perpendicularly aligned with the center of the bullseye. Solution: Recalibrate the alignment.
During the first calibration after installing the driver, carefully observe the details of any system error messages, such as "Control card not found" or "Contact screen not connected." Check the corresponding components according to the prompts.
Due to technological limitations and poor environmental adaptability, especially for external acoustic wave contact screens, which can become unusable due to contamination from water droplets, dust, etc., contact screens, like ordinary machines, require regular maintenance. Furthermore, because contact screens are highly integrated industrial control contact units combining various electrical devices, the following issues should be noted during use and maintenance:
1) Wipe the screen with a dry cloth before turning on the computer each day.
2) Water droplets or beverages falling on the screen will cause the software to stop responding because water droplets and fingers have similar properties and need to be wiped away.
3) The touch screen controller can automatically detect dust, but too much dust will reduce the sensitivity of the touch screen. Simply wipe the screen clean with a dry cloth.
4) Use glass cleaner to remove dirty fingerprints and oil stains from the contact screen. Embedded industrial computer
5) Strictly follow the procedures for turning the power on and off. The order of turning on the power is: monitor, speakers, and then the host. The order of turning off the power is the reverse.
6) Many temporary files are generated on the hard drive. If you frequently interrupt the process or shut down the computer without exiting Windows, it will quickly lead to hard drive errors. Therefore, it is necessary to run Scandisk regularly to scan for hard drive errors. Applications should be configured to exit applications and Windows discreetly before powering off, for example, by clicking the four corners in a prescribed order.
7) A clean touchscreen application does not require a mouse cursor; the cursor will only distract the user.
8) The simplest anti-mouse mode should be selected for the application, as complex modes require sacrifice of latency and system resources.
9) In Windows, when a slow-starting application occurs, the user may be able to access other systems. The solution is to modify the system.ini file: change shell=progman.exe (Windows 3.x) or shell=explorer.exe (Windows 95) directly to an .exe file. However, the application should be able to exit Windows directly; otherwise, the system will not be able to exit.
10) Depending on the environmental conditions, periodically open the machine head to clean the reflective stripes and inner/outer surfaces of the contact screen. The detailed method is as follows: Open the covers on both sides inside the machine to find the mechanism that releases the latch at the front of the machine head. Open the mechanism to release the latch. Lift the front of the machine head to see the contact screen control card. Disconnect the contact screen cable and back the machine head to remove it and the contact screen. Carefully observe how the contact screen is secured, then remove the contact screen for cleaning. Be careful not to use hard paper or cloth, and avoid scratching the reflective stripes. Finally, reassemble the machine head in reverse order and with the original structure.
Disclaimer: This article is a reprint. If it involves copyright issues, please contact us promptly for deletion (QQ: 2737591964). We apologize for any inconvenience.
