Design And Research Of Remote Monitoring System For 321 Broadcast Transmitters

Liaoning Radio and TV Broadcasting Station 321 is a medium wave station which belongs to the Technical Support Center of Liaoning Press,Publication,Radio and TV Bureau.At present,most of the equipment network transmitter rooms of the transmitting stations in Liaoning Province are set on the high altitude mountain,which can not guarantee the staff in the transmitter room at all times.Therefore,it is difficult to deal with the equipment failure in the transmitter room in time,which leads to misbroadcasting,stopping broadcasting and other accidents,and has a negative impact on people's audio-visual life.To the end,the author plans to design a transmitter remote monitoring system with high stability and security,in order to strengthen the maintenance and management of transmitters.In order to complete the research design,the author fully tested and recorded the technical indicators of the in-station broadcast transmitter.Combined with the working characteristics and technology matching of the transmitter,the interaction circuit suitable for monitoring the work of the transmitter is designed by the single chip microcomputer in the aspect of hardware,and a three-layer C/S architecture composed of the presentation layer,the business system logic layer and the data storage and communication layer is constructed in the aspect of software.The use of TCP/IP protocol to achieve local control system and remote computer information interaction,the choice of SQL Server 2000 database for the management and storage of data.Database access is mainly based on ODBC technology.According to the function,the business logic layer of the system is designed into several report boards,and the program design of each board is carried out through the design method of event-driven mode model.And using the network camera,design the real-time video monitoring system in the computer room environment,and can automatically save video.The software part of the system uses LabVIEW language and is designed according to the specific operation requirements of each functional module.It has various human-computer interaction functions,such as management control,parameter adjustment and data state display.According to the operation status of the radio transmitter in the station,the software and hardware parts of the monitoring system designed and studied in this paper have high stability,complete functions and strong security,which can meet the needs of our station's check-in.