Multi-channel Data Acquisition Device Based on ATmega128

In view of current special requirements for multi-user data acquisition in home industries of the electrical monitor business,proposes a design method of such a device that centers around ATmega128 and has the multi-channel,high precision and fast data-collection.At the same time,it describes the constitution of the hardware system,performance of functions and software design flow chart based on the system.The prototypes which have been tested up to qualification through experiments at industrial working fields,have put into mass production.