Touch screen for charge coupling component four-wheel locator and control method thereof

Abstract

The invention relates to a touch screen for a charge coupling component four-wheel locator, and the touch screen comprises a touch screen control chip, a four-wire touch screen, a first filter capacitor, a second filter capacitor and a pull-up resistor, wherein the output end of the four-wire touch screen is connected with the input end of the touch screen control chip; the output end of the touch screen control chip is externally connected with a single chip microcomputer through the interface of serial peripheral equipment; the touch screen control chip unidirectionally transmits an interrupt request for the single chip microcomputer; the touch screen control chip is externally connected with a 5V direct current power supply through the first filter capacitor and the second filter capacitor; and the pull-up resistor is connected between the external power supply and the touch screen control chip. The invention comprises the high-resolution and high-speed transmission reaction, the surface hardness processing, the abrasion and scratch reduction, the anti-chemical processing and the smooth surface and fog surface processing and has the advantages of once calibration, high stability, no drifting, simplicity in operation, high accuracy and long service life.

Description

technical field [0001] The invention relates to a touch screen and a control method thereof, in particular to a touch screen used in a CCD four-wheel aligner product and a control method thereof. Background technique [0002] In CCD (Charge-coupled Device, charge-coupled device) four-wheel aligner products, the man-machine interface of the lower computer is very simple, and only a few products use hard buttons, which highlights the shortcomings of inhumane and unintuitive operation. , measurement repairmen often have confusion about how to operate. In addition, when there is only one repairman, it is often necessary to operate the computer and then go back to adjust the car. Repeated adjustment increases unnecessary trouble. [0003] The basic principle of the touch screen is that when a finger or other object touches the touch screen installed at the front of the display, the touched position (in the form of coordinates) is detected by the touch screen controller and sent ...

AI Technical Summary

Problems solved by technology

[0002] In the CCD (Charge-coupled Device, charge-coupled device) four-wheel aligner products, the human-machine operation interface of the lower computer is very simple, and only a few products use hard buttons, which highlights the disadvantages of unfriendly and unintuitive operation. , Measuring repairmen often have the confusion of not knowing how to operate

In addition, when there is only one repairman, he often has to operate the computer and then go back to adjust the car. Repeated adjustments add unnecessary trouble

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