近红外传感器在无线遥控计数系统中的应用

Application of Near Infrared Sensor to the Radio Control Count System

利用反射式近红外传感器、无线电收/发模块及四合一功能组合计数集成电路等器件,研究了无线遥控红外线计数器。当有产品通过红外线检测区域时,就会有一部分红外光信号经产品反射回来,被与红外线发射管同排安装的光敏接收管收到并转换成同频率的电信号,再经红外传感器模块内电路进行放大、比较处理,输出高电平信号,启动发射机工作。接收机收到发射机发来的无线遥控编码信号后,再经解调、解码电路处理,输出编码脉冲,对此脉冲信号进行计数,就实现了对产品的统计。整个系统为模块化结构,具有安装容易、抗震能力强、传输距离远、工作稳定、计数准确、高亮度数字显示等特点。可用于重工业、轻纺工业、食品工业、农牧业一些设备或流水线上对产量或流量进行遥控计数。

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.