The second is data layer, including data acquisition and controlled quantity output.
第二层为数据层，包含数据的采集与控制量的输出。
Data record unit complete data acquisition, which records analog quantity data, parallel and serial digital data, parallel and serial graphic data from the signal source to CF card.
数据记录单元完成数据采集，把信号源发送的模拟量数据、并行和串行数字量数据、并行和串行图形数据记录到存储设备的CF卡上。
The data acquisition system was introduced which was composed of AT89C52, RAM, AD574, power circuit, analog quantity input acquisition module, etc.
介绍由at89c52、RAM、AD574、电源电路、模拟量输入采集处理等模块组成的数据采集系统。
It has technical advantages in data acquisition accuracy and ingredients quantity control by using bus control mode.
采用总线控制模式，在数据采集精度、配料数量控制方面具备技术领先优势。
This system divides into several big modules: The data acquisition, the grid cut in half, the data processing, the ponding quantity computation, the data image display.
本系统分为几大模块：数据采集、网格剖分、数据处理、积水量计算、数据图像显示。
Many Embedded Systems, especially those used in image processing and high-speed data acquisition, need to cachet extensive quantity of data at high speed.
很多嵌入式系统，特别是应用于图像处理与高速数据采集等场合的嵌入式系统，都需要高速缓存大量的数据。
Many Embedded Systems, especially those used in image processing and high-speed data acquisition, need to cachet extensive quantity of data at high speed.
很多嵌入式系统，特别是应用于图像处理与高速数据采集等场合的嵌入式系统，都需要高速缓存大量的数据。
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