automatic select
1.If the process controller was in automatic scroll mode at the time of the changeover to "manual", it is preferable to select the "RUN/STOP "functin in order to stop the time base and set the reference value, since in the event of an automatic restart it is easier to advance the program than reverse it if it has gone too far during the manual procedure.
5.We select aircrafts which have clear geometry shape, obvious recognized feature as the main goal to set up the automatic recognition system. Through selecting effective features, wefind out the object position quickly and reliably from the aerial image and recognize and analyze them. An automatic object recognition and intellectual interpretation system has been set up finally.
6.In this paper, the authors introduce a multiplex data collection system, which is controled by singe chip microcomputer 8098. It make it realizable to select 256 testing poits, and it also actualizes automatic gain control(AGC)for different amplitude signals and optimizes the accuracy of signal collection.
7.at the premise of assuring accuracy of data collection, stage gauging and water gate gauging station were laid out,based on the most economic system scale and investment,when laying out stage gauging station,the principle of controlling the river and branch was mainly considered; hardware select was advanced in the system,which can basically meet the needs of automatic system of hydrologic data collection and transmission and flood forecasting in theKaiduhe-and-Kongquehe irrigation district,it run stably and reliably,measure precision was high;

