Implement Method of Multithreading Technique for Distributive Monitor and Control Network System

Aiming at the situation that monitoring for building equipments was separated and unable to be managed as a whole, the design and implement method of distribute three levers monitor and control network system were represented, a configuration of RS-485 bus and B/S, a data management and analysis method for building devices using VC++ multithreading, database Web accessing technique were also described. Database accessing method of realizing the equipments' concentrate monitor and control based on the technique of ADO developed. The system has functions such as of operation analyzing, data searching and editing, running curve and data statistics, printing of report forms, etc. According to the fact that the running data stream is great and uneven, statistics database and historical database were used to manage and store data, and it makes the system operate conveniently and efficiently.