What is the cause of the failure of the industrial touch screen to jump randomly?
Touch screens have been widely used in our mobile phones. Nowadays, many industrial equipments are gradually being replaced with capacitive touch screens. Sometimes when operating the device, the touch screen may jump and fail randomly. What is the reason? Let's discuss today what is the cause of the malfunction of the industrial touch screen?
Phenomenon: Clicking on a certain area of the industrial touch screen, there is no response, but the area around the area is sensed and a touch event is generated
Problem analysis: The sensing area of the industrial touch screen is composed of a number of sensing channels. If some of the sensing channels are broken, then when the area is clicked, the TP cannot sense the electric field. There is a change, so there is no response when you click on the area, but the surrounding normal channels will sense the change in the electric field, so a touch event will occur in that area. The feeling is that this area is touched, but another area responds.
Root cause: the hardware channel of the industrial touch screen is damaged
Improvement measures: replacement of hardware
Phenomenon: Irregular jumps of the industrial touch screen
Problem analysis: The irregular jumps of the industrial touch screen indicate that the industrial touch screen itself is not working properly. This phenomenon will be caused when the power supply of the industrial touch screen is less than its normal working voltage.
Root cause: Abnormal power supply of industrial touch screen
3. When the firmware version of the industrial control touch screen is too low, the industrial control touch screen will jump and fail randomly
Phenomenon: The industrial touch screen can be used normally, but the pressing area and the response area are mirror images. For example, press the left area to respond on the right, and press the right area to respond on the left.
Problem analysis: The partial area of the industrial touch screen can be used but it is not accurate when pressed, but the interruption is normal, and the reporting point is mirrored. This phenomenon may be caused by the industrial touch screen firmware is too old and the current driver is not matched.
Root cause: industrial touch screen firmware does not match
Improvement measures: upgrade industrial touch screen firmware
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