emergency requirement
1.The concept,type and character of abruptness accidents of environmental pollution were approached,as well as the concept of emergency monitoring and the requirement of concrete implement which there are direct significance for actual works.
2.According to the requirement of City Emergency Response System(CERS),some important problems need to be emphasized,such as technology of information integrated sharing,construction of Public Security "3 in 1" Emergency Response System and Geography Information System(GIS),are analyzed.
3.RCS-9653 type automatic throw-in equipment of emergency power supply can be applied in substation bus arrangement under 220kV voltage class,however,in substations applied two-wire system,when mode of operation changed,there were still some problems that can’t meet the requirement.
4.With the practical requirement in Emergency Rescue System For Freeway,after studying correlative tech- nique about active service in depth,an active model based on CORBA notification service which has better cross-plat- form-ability,manageability,extensibility,maintainability and flexibility is advanced in the paper.

