Abstract: According to the requirements of DC600V QinghaiTibet generation car power test system, this paper constructs the hardware platform of date acquisition system using Advantech data acquisition card, and introduces the hardware structure and software structure of the system. On the basis of this, the system uses interrupt triggering to acquire data, realizes real time data acquisition and displaying data with dynamic curves etc., and utilizes VB 6.0 technology interview of SQL Server 2000 databases for creating equipment states information, under VB 6.0 environment. The experiments show that the system is of good stability, high accuracy.

Key words: data acquisition system, Advantech data acquisition card, VB, interrupt triggering