Design Of Smart Home Based On ?C/OS_?

With the rapid development of computer technology, information and communication technology, Internet control technology, the quality of people's life has been constantly improved and the demanding of people to home environment is increasing. So the concept of intelligent home has gained more and more popularity and the intelligent home will also become the trend of development in the future home environment. Meanwhile, the embedded RTOS is the hot topic of study in recent years, and a variety of embedded operating system also emerged. Although the development of the intelligent home is rapid both in China and abroad, the intelligent home, due to its high costs and complexity, has great limitations on its promotion. Therefore it's valuable and meaningful to design a set of embedded RTOS intelligent home system at the main control end with simple structure and high cost performance.On the basis of analyzing the development status of the intelligent home control system in China and abroad currently, this paper first studies the network structure of 433 MHz RF communication with cost-effective wireless network mode of the network topology, and based on this network mode custom master communication between nodes and each node equipment protocol stack. And then it studies how to transplant the ?C/OS-? real-time operating system into STM32F407 master control chip and the modified kernel optimization according to the running principle of ?C/OS-? real-time operating system, solved the defects of poor real-time performance, poor extendibility of system and inefficient operation system of the original bare-metal programming system. Finally, based on the transplant and optimization of ?C/OS-? real-time operating system to Lw IP protocol stack, the WEB server is built to make the intelligent home system to realize the combination of the wireless control and remote control. Combing the above work, this system, on the basis of transplanting the STM32F407 master node of ?C/OS-? real-time operating system, implements the RGB lighting control, automatic curtain control and functions such as temperature and humidity acquisition, and achieves the same control effect with master node control through a remoteWEB way. To sum up, the main research contents of this paper are:(1) The transplanting and optimizing of STM32F407 chip of ?C/OS-? operating system based on Cortex-M4 nucleus.(2) The study of working principle and network topology structure of 433 MHz RF communication, and the communication protocols between the master nodes and node equipment of communication on the basis of 433 MHz RF communication chip of CC1101.(3) The construction of WEB server on the basis of transplant of Lw IP protocols of?C/OS-? operating system to achieve the remote control of WEB of intelligent home.According to the experiments and tests, the designed intelligent home system in this paper can meet the requirements of intelligent home control system to the intelligentialize,portable and hommization of home environment, and with the characteristics of easy operation, simple structure and low costs, it's possible to promote the cheap intelligent home.