The application of public network in emergency communication command mainly includes alarm, information release, emergency priority call, etc., timely, accurate and objective release of emergency situation and on-site emergency treatment progress, promotion of universal rescue and rescue, medical tr

System OverviewThe petrochemical industry is a multi-disciplinary, multi-professional, technology-intensive industry. Its production includes a series of processes such as geological exploration, drilling, mining, transportation, and refining. It has the characteristics of wide area, long cycle and

In the history of human development, natural disasters have always been accompanied. Tsunami, earthquakes, hurricanes, mudslides, snow disasters, etc., countless people have lost their homes and even lives. In the course of fighting natural disasters, people have accumulated a wealth of experience a

With the continuous maturity of LTE network technology, the enthusiasm for building LTE networks around the world is also getting higher and higher. In addition to large operators, LTE networks are also increasingly favored by private network users. Users in various industries such as energy, public

EPC (Evolved Packet Core Network) was born in response to LTE. The mobile communication network evolved from 3G to 4G LTE, and the mobile core network also evolved from the traditional core network to EPC. EPC is the core network part of the 4G network, and provides an intelligent pipeline for high-

4G multimedia broadband trunking dispatching system came into beingXianyang International Airport is an important gateway airport in China. It is the largest air transportation hub in Northwest China. It is also the ninth largest airport in Mainland China (passenger throughput in 2014) and the fifth

1 IntroductionIn recent years, with the rapid development of social economy, China's urban rail transit construction has entered a stage of rapid development, and its safety and comfort have received widespread attention from the society. On the one hand, passengers are no longer satisfied with a sm

Nowadays, the communication system of traditional airports has always restricted the efficient operation of airport services. Under the background of rapid development of civil aviation and the construction of LTE network, whether LTE technology can be used to carry airport civil aviation services h

China is a country with less forest resources. The forest coverage rate and per capita possession are far below the international average. At the same time, China is also a high-fire area. Since the founding of the country, an average of 12,000 forest fires have occurred each year. More than 700,000