基于ARM9的嵌入式无线智能家居网关设计

针对传统智能家居系统中多种无线通信技术之间互联的困扰，设计了一个新的两种无线通信技术直连的智能家居网关。该网关以ARM920T嵌入式处理器S3C2440A为核心，ARM Linux为实时操作系统，采用新兴的Zigbee与Wi-Fi融合的通信技术，以满足家庭远程监控、家庭安防和家电控制的个性化需求。在ARM9处理器上构建嵌入式Web服务器，通过扩展Wi-Fi模块与Zigbee模块实现家庭内部无线网络的建立以及与Internet的连接，并给出了硬件组成结构和软件实现流程。实验结果表明，该网关在丢包率与时间响应方面优于有线网关和Wi-Fi—蓝牙网关，适合在智能家居系统中应用。

Design of embedded wireless smart home gateway based on ARM9

To release the connection problem between different kinds of wireless communication technologies in conventional smart home system, a new direct-connected intelligent home gateway between two different wireless communication technologies was designed. This gateway was based on ARM920T embedded processor S3C2440A, ARM Linux operation system and new communication technology combining Zigbee and Wireless-Fidelity (Wi-Fi), was considered to achieve the personalized objective of remote monitoring, home security, home appliances control and so on. An embedded Web server was built in ARM9 processor, the Wi-Fi module and Zigbee module were expanded to achieve the construction of wireless network and the connection to Internet, and the hardware structure and software process were shown too. The experimental results show that, the packet loss rate and response time of this new gateway are less than the other gateways like wire line network and Wi-Fi bluetooth wireless network, and it can be applied to the smart home system.