The Application And Research Of Spread-Spectrum Communications Technology On The Mine Safety Monitor

By thinking over the merit of convenience, economy and strong anti-interference ability of Power line spread-spectrum communication, the application of Power line spread-spectrum communication to monitor and control the mine security is introduced in this paper. There is no any application or research in power line spread-spectrum communication on the complex power line environment in mine. This paper has conducted the research under this background. Section one briefly introduces domestic and foreign development of power line communication. By comparing with several monitoring plan based on different communication ways, the way that uses Power line spread-spectrum communication is selected. Section two introduces the principle of power line spread-spectrum communication and modulation and demodulation in detail. Section three designs the substation which based on power line Direct Sequence Spread-spectrum binary phase shift keying selecting PL3105 chip as the core of spread spectrum communication and section four presents simulation results by simulating the power line DSS system demonstrating the anti-interference performance.