Server software in remote monitoring system of city-street-light

DING Liang， QIN Hui-bin， WU Hong-sheng
（Institute of Electron Device & Application， Hangzhou Dianzi University， Hangzhou 310018， China）

Abstract： Aiming at the large-scale remote monitoring system of city-street-lighting，a set of server software was designed in road lighting control system based on C/S mode and GPRS networking. In order to solve a large number of clients communicating via the Internet with the server at the same time，Microsoft's completion port communication technology and multi-threading mechanism were applied in the network communication module of the server software. Modules programming and hierarchical idea were introduced in the data processing module which uses the active data objects（ADO） technology access to the Access database. The same or similar functions were packaged into a module and were divided into hierarchies according to function calls in order to make calls between modules become the order. The amount of code redundancy could be minimized and memory space would be saved. Performance tests results indicate that the server software can support numbers of clients and has a high data processing capability，and it has good performance in the actual project testing.
Key words： city-street-light； remote monitoring system； server software； active data objects（ADO）