为输电线载波通信系统可靠执行它一定能避免，或者应付与，在它的通讯电路遇到的噪声的不同的类型。
For a power line carrier communications system to perform reliably it must be able to avoid, or cope with, the different types of noise encountered on its communications channel.
通讯采用直流电源载波方法，信号线与电源线公用，不仅降低了布线成本，而且提高了系统可靠性。
Using the DC power carrier technology, the signal was modulated into the power wire, which can not only reduce the wiring cost, but also improve the system reliability.
针对国内电厂输煤系统的现状，提出将先进的载波通讯技术应用到该系统中。
Aim at the actuality, the thesis presents the application of the electric carrier wave to this system.
本发明涉及到工业控制领域，尤其涉及到一种运用电力线载波通讯模块传递报警信息的气体检测报警系统。
The invention relates to the field of industrial control, in particular to a gas detection alarm system using power line carrier communicating module to transfer alarm information.
系统控制核心是单片机，信号的传输采用电力载波通讯技术。
The core of the controlling system is the single-chip computer. and the conveying of the signal adopts the communication technology of powerline carrier wave.
介绍一种利用220伏同相电力线载波传送dtmf编码数据的系统中的通讯及控制电路的设计，它与数据采集电路及数据处理电路构成一个完整的系统。
The design of the communication and controlling circuit that transmits DTMF code in AC220 inphase power line is presented. It forms a complete system with data picking and processing circuit.
介绍一种利用220伏同相电力线载波传送dtmf编码数据的系统中的通讯及控制电路的设计，它与数据采集电路及数据处理电路构成一个完整的系统。
The design of the communication and controlling circuit that transmits DTMF code in AC220 inphase power line is presented. It forms a complete system with data picking and processing circuit.
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