In the emergencies of releasing toxic gas in public places, emergency ventilation system plays an important role for ensuring indoor occupants' safety.

Thus, the emergency ventilationcalls more and more attention in the research field.

Design and realization of emergency communication transmission net resource management systems;

Establish of the emergency communication network resource management system based on GIS;

Design of the Software for Mine Multimedia Emergency Communication System;

This peper outlines the requirements of the railway emergency telecommunication (RETS) at war and gives information about the features of the new-generation RETS.

The article begins from the building of emergency telecommunication integrated system and different urgent scenarios, analyses the different objectives and different requirements of emergency telecommunication in the case of different urgent scenarios, such as personal or public safety events, and raises the new requirements and challenges in the new situation according to the development .

The article introduces some main points during the system designing of an emergency telecommunication vehicle, according to the experiences of the writer.