Research And Design Of Smart Ethernet Security And Defense Monitor System Based On Virtual Instrument

With the development of society and the improvement of people's living standard, the needs of people for the safety of life and property are enhancing gradually. But at present the safety-defense facility of housing is not satisfactory enough. The development and mature of virtual instrument and Ethernet technology makes it possible to realize integrating, digitizing, networking and being smart.Aiming at the character, such as complicacy, communication data small et.al, the network frame of safety-defense and inspecting system based on intelligent node composed with C8051F020 SCM and Ethernet control chip CP2200 is presented. And the management and maintenance of PC is realized by Lab VIEW. The main content and conclusions are as follows:The detectors of consumer, including guard against theft detector, fire-alarm detector and nocuous gas leak-defense detector, are selected by analyzing safety-defense and inspecting system at present, which greatly reduces error alarm rate using multi-parameter detecting. The data communication between PC and intelligent nodes is realized by C8051F020 SCM and Ethernet control chip CP2200, and the thesis workouts corresponding communication software. The thesis designs TCP/IP communication protocol suiting for this system, aiming at the characteristic of current TCP/IP and SCM communication protocol. The main controller PC is the core part of safety-defense and inspecting system, offering the flat roof of managing every intelligent node of consumer. The thesis designs the main controller PC management software based on virtual instrument to make use of resource of PC. Moreover, some factors and relevant resolving scheme are presented to make system more safe and reliable.The system is with low cost, practicality, reliability, powerful function and friendly interface. Its function is easily expanded. Furthermore, this system can be applied widely.