Combustion analyse of ICE under transient condition requires a large amount data. That means the performance of the ICE combustion data acquisition system must be promoted.
发动机的非稳态燃烧分析往往需要很大的数据量，这就对发动机燃烧数据采集系统的性能提出了新的要求。
2
Because of large numbers of acquisition points and short time period in control system, the amount of historical data is very large.
但由于控制现场的采集点多，采集时间周期短，因而要保存的历史数据量非常大。
3
The problems of high speed and large amount data acquisition are solved by using the proposed method. The accuracy of correlation function is not affected seriously.