Research Of Security Systems Based On μC/OS-Ⅱ

People's living conditions grow rapidly because of the fast development of social and science, and also people pay more attentions to their own possessions than they used to be, so the security systems become more tiny and more intelligent. Refering to all above, a wireless security system based onμC/OS-Ⅱwas developed in this system, it realized real time monitoring house alarms.The system uses SPCE061A as main controller, and uses real-time operating systemμC/OS-Ⅱas embedded system to constitute an embedded MCU, then adopts senor for corresponding signal acquisition, completes the receive, analysis and process of the signal, use MC35i module send the message to user's telephone. This article first introduces the relevant knowledge of GPRS and embedded system, based on this, the hardware of the system is designed, then the selection of senor is completed, and also the design of SPCE061A and peripheral circuit of MC35i. After that, the AT command is analysised and coded, so the alarm signals can be successfully delivered, by realizing the transplantation ofμC/OS-Ⅱto SPCE061A, the system can successfully send alarmed messages monitored to user's telephones, finally the transplant codes is debugged under the IDE(integrated development environment). There are detailed schematic diagrams and codes in this paper.The system of this paper is small, and easily to be expanded, it can not only be used to house security systems, but also in the fields of industrial monitor, railway supervisory control, or medical devices, at the same time, the system has a practical significance for the realize of Internet of Things.