[Application of near infrared sensor to the radio control count system].
Using reflective near infrared sensor, radio receiving/transmitting module and four-in-one function mix count integrated circuits, the radio control infrared counter was studied when a product enters the infrared surveillance area, part of the infrared signal will be reflected by the product, received by the photosensitive tube installed parallel with the transmitting tube, and transformed to a similar frequency electric signal, which is amplified by the internal circuits of infrared sensor module. After comparing and processing, a high level signal will be output to start transmitting module. When the receiving device receives the radio control encoded signal, it will demodulate and decode the signal, and send out an encoded pulse. By counting this pulse signal, the statistics of the products can be realized. The whole device is of a module configuration. It has the advantage of simple installing, strong anti-detonation ability, far distance-transmitting, work reliability, precise counting and high luminance digital display. It can be used in heavy industry, light and textile industry, food industry, and farming and animal husbandry, to radio control the count of yield or volume in some facilities or assembly lines.
Physics and Electronic Science Department, Luoyang Normal College, Luoyang 471022, China. wangsd@126.com
Song-De
SD
Wang
Li-Ping
LP
Yao
Xiao-Long
XL
Zhu
Xu-Xin
XX
Zhang