| The complete smart home control scheme is designed,which includes monitoring terminal hardware and mobile client software.These function have been implemented about view of indoor environment parameters of family, four lighting, TV, air conditioning control and video monitoring; Embedded monitoring terminal also implemented the camera intrusion detection, alarm function, etc.The monitoring terminal of system and mobile communication used the WIFI network or 3G wireless network environment for data transmission. WIFI network module of ralink company based RT3070 chip as the core to access the Internet, can also acted as the AP to build a WIFI LAN, in both cases needed to transplant WIFI STA driver or the corresponding AP driver; 3G network is built by Huawei EM770 W wireless card. Monitoring terminal using S3C2440 of ARM9 chip as CPU, embedded Linux operating system, unified control and make data processing of each node in home; video surveillance module uses H264 codec algorithm.Mobile phone client software based on Android operating system which can run on Android2.3 and above version, using the JAVA language and C language to write together, in the JAVA language interface to the upper application and part of the network transmission, write in C language and assembly language for H264 decoder on program execution higher efficiency code; JAVA application of upper layer and local decoding the through JNI technology to realize connection; Then transplant SDL source and play the video within this framework. The client software set up multiple threads, guaranteed the running efficiency, friendly interface simple, easy to operate. The experimental results show that under the 3G or WIFI network implementation of the smart home system intrusion detection, indoor environment view, electrical control, video monitoring, and other functions, and work stability, running in good condition. Finally put forward the shortcomings of the system and need to be improved to upgrade. |
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