Broadcast Coverage Of The Design And Research Of The Effect Of The Monitoring System

A system structure for radio coverage effect is put forward here, aimming at the request of the province broadcast monitoring. It is composed of two parts: the control center and the monitor and record instrument put all over the cities of the province.This thesis has mainly studied the structure of the system .. completed the hardware and software design of the instrument and also completed the software design of the control center based on SQL Server 2000 database system and GIS groupware MapObjects.The monitor and record instruments put all over the cities get the real-time coverage parameters (including modulation degree field strength and real-time Speech) and monitors a close down or inferior quality broadcast.. The hardware design of it mainly includes circuit of radio reception signal sampling circuit the CPU control unit man-machine conversation and communication interface; The software design contains data sampling module analysis and processing module keyboard and display program module and so onThe control center gets the broadcast coverage parameters and displays a close down or inferior quality broadcast by having a communication with each instrument. The management software of control center is based on Visual Basic 6.0. It establish the database for the system in use of SQL Server 2000 and carrys out the function of each instrument's distribute display and information display by using of GIS groupware MapObjects.