Among these, one key link is to install radio station and to combinatively build radio communication network. It bears the data transmission between the general station and sub stations and it directly influences on the use results after data collection, analysis and treatment.
In order to meet the needs of the radio communication network users near the sea and on the sea-route, a radio propagation model that has appropriate precise accuracy and fits for offing propagation environment is needed badly in the radio network planning and optimizing engineering.
The working condition measurement means for large scale direct injection boiler which wasused to extract dense petroleum were discussed in this paper. Parameters measurement and digital radio communication equipment was designed in order to continuously get data of pressure,pressure difference, dry steam percent of two-phase flow as well as mass flow rate of high temperatureand high pressure steam. Digital radio communication network was realized for monitoring several boilers simultaneously.
This thesis mainly deals with the methods to design the system of management and automatic distribution for the radio communication network spectrum, using tactical radios as the main communicating equipment. It provides some effective methods to solve the possible problems in the designing process and also includes a brief introduction of the operation of the system.
In order to prevent communication system from failing to work in backbone communication network caused by power supply,power supply monitoring system is necessary in each communication station. This paper gives some new suggestions about using radio communication network to monitor communication power supply equipments,discusses the idea of constructing power supply monitoring system in communication station of Central China Grid,introduces its structure scheme,function demands and layout of each station.
The problem of radio frequency assignment is to provide communication channels from limited spectral resources whilst keeping to a minimum the interference suffered by those whishing to communicate in a given radio communication network.
In this paper, the transmission performance and transmission manner of superfrequency electric wave and the calculations of stadia and communication distance are discussed. The characteristics of radio communication on highways is presented briefly, as well as considerations and practical experience in the design of highway radio communication network.
A new kind of mobile radio communication network, called Full-Duplex Network Without Any Central Controller, which is of multiple shared channels and can serve multi-traffics, is proposed. The network architecture and main technical problems to organize the network are discribed. The formal product of the network is manufactured in a factory.
The design and the composition of the automatic weather station network in Jingzhou are introduced in this paper. By analyzing theory of radio wave transmission loss,the possibility using ultra-short wave for out-of-sight transmission been pat forward and tested. The result is inspiring. So a new way is provided to establish a radio communication network in the plain areas.