Frequently occurring faults in human-computer interaction interface and their processing methods

Human machine interface (Human Machine InteracTIon, referred to as HMI), also known as user interface or user interface, is a medium and dialogue interface for transferring and exchanging information between people and computers, and is an important part of computer systems. It is the medium of interaction and information exchange between the system and the user. It realizes the conversion between the internal form of information and the form that humans can accept. Human-computer interfaces exist in all fields involved in human-machine information exchange.

There are man-machine interfaces in all fields involved in man-machine information exchange. At present, human-machine interface HMI has a wide range of applications in various fields, but in the process of using the human-machine interface, we often encounter many problems. In response to these situations, this article summarizes the faults that often occur in the daily work of the man-machine interface and their treatment methods.

1. The human-machine interface is unresponsive, and no part is responded by touching any part.

Solution: In this case, first check whether each wiring interface is loose, and then check whether the serial port and interrupt number conflict. If it is caused by the conflict, then the resources should be adjusted to avoid conflict.

Secondly, check whether there are cracks on the surface of the man-machine interface. If cracks are found, they should be replaced in time. In addition, it is also necessary to check whether there is dust on the surface of the man-machine interface, and if so, remove it with a soft cloth. Observe and check whether the indicator light on the control box is working properly. When it is normal, the indicator light is green and blinking.

If the above parts are normal, you can use the replacement method to check the man-machine interface, first replace the control box, then replace the touch screen, and finally replace the host.

2. The man-machine interface is normal but the computer cannot be operated. A human-machine interface, after testing, everything is normal, but after connecting the host, the computer can not operate.

Solution: There are two reasons for this situation. First, it may be that the display unit driver version is too low and you need to install the latest driver. Second, it may be that the HMI control card receives the operation signal before the host starts loading the HMI driver, and only needs to restart the computer after the power is turned off.

3. Inaccurate touch. For a surface acoustic wave man-machine interface, touching the part of the display screen with a finger cannot complete the corresponding operation normally.

Treatment method: There are two reasons for this phenomenon. The first possibility is that the reflection stripes of the sonic screen are slightly damaged, and it will not be completely repaired in this case; the second possibility is that the reflection stripes around the screen are covered with dust after using the sonic man-machine interface for some time , You can wipe with a soft dry cloth, then power off, restart the computer and recalibrate.