interactive touch screen digital signage.It can be seen from the curve that the position of the occlusion and the output voltage have an approximate linear relationship. The position of the touch object and the received infrared signal intensity establish a linear correspondence relationship. Based on the above principle, " 0 capture the" state of the optical signal intensity of the infrared receiver as the zero point value, the " 1 acquiring light intensity signal as the infrared receiver full scale value" state, so that the two sets to preclude the light intensity of the infrared receiving tube for normalization 256 stage the amount of , the range of values that the received light intensity channel is 0 ~ 255 . The minimum resolution obtained is 0.0195 , that is, a point can be detected at a distance of 0.0195 mm . By the size of the design of infrared touch screen is 600mmX225 , the order can theoretically detect on the screen to 30769X11538 points, greatly improving the resolution infrared touch screen . But by the in resolution display of 2048X768, so just light intensity The signal can be realized by 32 -level quantization.

interactive touch screen digital signage.It can be seen from the curve that the position of the occlusion and the output voltage have an approximate linear relationship. The position of the touch object and the received infrared signal intensity establish a linear correspondence relationship. Based on the above principle, " 0 capture the" state of the optical signal intensity of the infrared receiver as the zero point value, the " 1 acquiring light intensity signal as the infrared receiver full scale value" state, so that the two sets to preclude the light intensity of the infrared receiving tube for normalization 256 stage the amount of , the range of values that the received light intensity channel is 0 ~ 255 . The minimum resolution obtained is 0.0195 , that is, a point can be detected at a distance of 0.0195 mm . By the size of the design of infrared touch screen is 600mmX225 , the order can theoretically detect on the screen to 30769X11538 points, greatly improving the resolution infrared touch screen . But by the in resolution display of 2048X768, so just light intensity The signal can be realized by 32 -level quantization. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.