underground communication

Plastic honeycomb pipes are used to protect underground communication cables and optical cables.

塑料多孔管主要用于埋地通信光缆和电缆的穿导、隔离和保护.

Application of DTx Technology to Mine Underground Communication

DTx技术在井下通信中的应用研究

The Radio frequency communication irreplaceable makes mobile communication realized in underground mine.

射频通信无可替代地实现了矿山井下的移动通信.

Underground data collector mainly including power supply module, A/ D converter of pressure module, RS-485 communication of angle module, LCD module, FLASH memory module, alarm module and CAN bus communication module.

井下数据采集器主要包括供电模块、压力A/D转换模块、倾角RS-485通信模块、液晶显示模块、FLASH存储模块、报警模块和CAN总线通信模块。

The Corrosion Protection of Underground Communication Cable with Sacrificial Anode

地下通信电缆的牺牲阳极保护

Since the underground of city various pipeline net and the solid of city transportation and communication are a tendency of city development.

而城市各类管网的地下化和城市交通、通讯的立体化是未来城市发展方向。

The paper introduced a way of channel coding characteristic of communication mine underground.

信道编码是提高低压配电网窄带电力线通信可靠性的有效方法之一.