Through the establishment of water quality monitoring and security system for Douhe Reservoir water head area in Tangshan,Hebei Province,the combination of automatic water quality monitoring and laboratory fixed monitoring was realized,which can provide real time and continuous water quality parameter as well as change information.

This paper take the existing intelligent engineering machine of the electronic monitoring system for a certain type bulldozer for example,combining with the technology theory of faults monitoring and self diagnosis used in the modern car,brings forward an improvement thought of the faults monitoring system for the engineering machine.

Starting with the analysis of artillery survey support system\'s work principle and capability and characteristics,the paper evaluates the operational effectiveness of this system,and compares it with the traditional survey equipment and generally survey methods,and then analyzes this system\'s shortages and brings forward advice for development.