介绍了一种计算机通过利用双音多频(DTMF)码进行控制的多媒体数学集中控制系统的工作原理。控制方法简单可靠，利用电话可以进行远程......

According to the cutting work of diamond wire saw underwater,its monitoring and controlling system was designed by using......

A special PLC is designed for the cantrol system of gar-bage truck, based an the feature and applications of vehicular e......

本设计主要利用红外感应的原理，对LED灯具实现开关控制。通过红外传感器对人体红外线进行感应，输出的小信号，经过放大和比较后，送入单......