| With the rapid advance of gas industry,gas safety in urban area has been gradually correlated with the development of city and society,which has also been concerned by government and the public.Therefore,how to strengthen the safety management of gas system is the key question for gas supply management and safety production.New technology,such as the Internet,computer,information management system and artificial intelligence,has accelerated the gas industrial informatization,which provides technical support for gas network operation.The introduction of advanced and intelligence technology,personal digital assistant(PDA)as presented,offers efficient supplementary method for safety operation of gas.Meanwhile,work efficiency of staff can be improved.In view of Beijing gas network situation,Beijing Gas Group,as a large gas supply enterprise,based on the technology of mobile operating system and GIS background management system,has developed and operated PDA pipeline intelligent inspection system.In the daily safety operation,PDA and content management system can be used to monitor the field inspection.Moreover,depending on embedded global position system(GPS),the real-time inspection and abnormal information collection can be realized.The function of scanning,query,statistics and analysis in electronic information can also be implemented.It is convenience for staff in backstage to monitor and manage the inspection,which improved the efficiency of production and operation,such as network inspection,emergency repairing,and equipment management.Through the study of PDA and gas network safety technology,this thesis discusses PDA application effect and the problems that PDA need to be solved,and analyzes the security technology of gas projects in planning,designing and constructing.This thesis also evaluates the safety operation of gas network and inspection equipment,and expects the future of smart gas. |