一、本机概述 DP6-3型遥控装置由发射机和接收机两部分组成,见图1、2、3。可对起重机、吊车等设备在100米内进行无线电操纵,使操纵者能避开高温、有毒气体、尘埃等环境。本装置有东、西、南、北、升、降六个动作按钮,升、降只能单独进行操作,不能和其他动作同时进行;如果操纵者误发两个互相矛盾的动作指令,接收机告警红灯会亮,并停止一切动作,以防发生事故。为了提高抗干扰能力,本装置采用调频制。两个音频组合成一个动作指令,用四个音频信号可组成六个动作。采用双音频组合一则可节省音叉,二则对抗干扰也有利。接收机鉴频器输出信号经音叉滤波器滤除不需要的干扰信号,由于音叉滤波器底部的带宽在10赫以内,所以本装置抗干扰性能良好。相应地,发射机中四个音频信号亦由音叉振荡器产生,其频率稳定 First, the local overview DP6-3 remote control device consists of two parts transmitter and receiver, see Figure 1,2,3. Can cranes, cranes and other equipment within 100 meters of radio control, so that operators can avoid high temperature, toxic gases, dust and other environments. The device has east, west, south, north, rise and fall of the six action buttons, up and down can only be carried out alone, and other actions can not be carried out at the same time; If the operator mistakenly issued two conflicting action instructions, the receiver Alarm red light will be on, and stop all actions to prevent accidents. In order to improve anti-interference ability, the device uses FM system. Two audio combined into a single action instruction, with four audio signals can be composed of six movements. The use of a dual audio combination can save the tuning fork, the two are also good for interference. The receiver frequency discriminator output signal by the tuning fork filter unwanted interference signal, the bottom of the tuning fork filter bandwidth within 10 Hz, so the device anti-jamming performance is good. Correspondingly, the four audio signals in the transmitter are also generated by tuning fork oscillators whose frequency is stable