Infrared touch all-in-one touch mode introduction, advantages and disadvantages, touch all-in-one machine adopts the principle of infrared emission and blocking. The touch screen includes a set of high-precision, anti-interference infrared emitting tubes and a set of infrared receiving tubes, which are installed in two opposite directions to form an invisible infrared grating. It is embedded in the control circuit and can be controlled, and the system continuously pulses the diode to form an infrared polarized beam grid. When a touching object such as a finger enters the grating, it blocks the light beam. The intelligent control system will detect the change of light loss and transmit a signal to the control system to confirm the X-axis and Y-axis coordinate values.
touch all-in-one
The touch screen is composed of infrared emitting and receiving sensing elements installed on the outer frame of the touch screen. On the surface of the screen, an infrared detection network is formed, and any touching object can change the infrared rays on the contact to realize the touch screen operation.
Advantages: The infrared touch screen is not disturbed by current, voltage and static electricity, and is suitable for some harsh environmental conditions. Moreover, the price is low and the installation is convenient. In addition, because there is no capacitor charging and discharging process, the response speed is faster than that of the capacitive type.
Disadvantage: Since the frame is only added to the ordinary screen, the infrared emitting tube and the receiving tube around the frame are easily damaged during use.
