Device collaboration technology is the supporting technology of the large-scale area management and "the Internet of things"

so it is of great significance to research device collaboration technology and its system software.First

the stage of device collaboration technology is summarized.Large-scale device collaboration technology is considered as the key issue.How to support large-scale device collaboration

rapid control speed and collaboration security needs to be investigated.Then the software architecture of device collaboration system is summed up

and three key technologies of large-scale device collaboration are analyzed.By analyzing a number of device collaboration applications and the technology scheme

the characteristics

advantages and shortcomings of the present researches are pointed out.The impact of network infrastructure is analyzed.Finally

the future research topics are discussed.