Discovery And Description Of Plug-and-Play Device Based On Serial Bus Mode

In the recent years, with the development of computer technology and network controltechnology, the serial bus control system has been used more and more widely due to its simplestructure and flexible operation. However, the traditional serial bus system cannot be applied anddeveloped better for the reason that it does not support the PnP. and low efficiency of the systemby the adoption of polling mechanism in the master node. The main purpose of this paper is torealize PnP of nodes in serial communication system, and control it by getting the description.Considering the security risks of the system, this page proposes the encryption and decryption ofdata.This paper analyzes the state of development of PnP technology and device descriptiontechnology in a serial bus system after introducing background and significance of this topic.After analyzing the deficiencies and shortcomings of current technology, this page proposes themethod of using virtual address to allocate mailing address to achieve the automaticidentification of PnP device, and standardizes the device description.Secondly, after the realization of the auto-discovery identification of the master node for thenew node in the serial bus system, it proposes the application of RSA and RC4to encrypt thedata in the message frame, aiming at the security problem of the communication process; thusimproved reliability of the system.Finally, it sets two experimental tests: system can identify PnP of the slave nodes; the masternode can get effective description of slave nodes and to operate and manage them.