Yangquan Meteorological Information Transmission And Remote Alarm System Design And Implementation

With the development and modernization of network technology and meteorology,the stations have implemented automation and automatic weather station data hasreplaced the manual observations. The transmission rate and failure rate of automaticweather stations are some of indicators while the provincial bureau evaluating eachstation. The effectiveness of transmission of meteorological informations is veryimportant, delayof data transmission will directly affect the data procession of higherweather stations. Since the establishment of automatic weather stations, the uploadingrate of meteorological data has been improved from once per hour toonce per sixminutes, by which enhanced effectiveness.With the meteorological information transmission service and workloads increasing,the old systems can not meet the needs. In order to enhance the efficiency ofmeteorological information network, and so to work efficiency and service quality, it isnecessary to develop a new network system to fulfill the requirements of thetransmission of meteorological packets, weather information, and the automaticmonitoring of the stations. The new system can not only reduce the workload of thestaff, but also improve the quality of the automatic transmission of meteorologicalinformation.This thesis mainly discusses the design and implementation of the meteorologicalremote transmission alarm system. The system uses Microsoft Visual Basic asdevelopment language, programmers can easily and quickly build an application andcomplex application can also be developed by it.The system is to solve the practical difficulties of daily operations, at the same time,it can be easily maintained. As a result, the workload will be hugely decreased. Thisthesis gives a detailed description of application. The Design have several mainfunctions: automatic weather station uplink transmission of data detection, networksystems detection, Real-time monitoring, problems identification and alarm attendant.Mains detection module uses ATMEL AT89C2051microcontroller as the core, it haslow-voltage, high-performance, low-cost, easy to develop and experiment characteristics.If a main failure was detected, the microcontroller transmits signalsthrough the level converter to the computer, the computer monitoring software alarmcontrol SMS sending device receiving power outage information. On the basis of thestudy, the software and hardware debug has been done, the machine can now worknormally under the normal environment.The main monitoring object of this system includes Province-City network, City-County network, router, main servers, automatic monitoring stations, timing ofautomatically monitoring station uplink data and fire alarms. This system is highlyreliable, low cost and saving labor.. It is practical and valuable to implement.