基于LPC2214的传感器网关设计

摘要

针对物联网上数据信息传输的正确性、实时性及安全性要求,在对标准TCP/IP协议进行分析的基础上,提出了一种适应物联网需求的嵌入式传感器网关设计方案.对标准TCP/IP协议进行了裁剪并给予实现,设计了面向物联网的传感器网关的基本构造和网络模块的接入电路,并将嵌入式操作系统μC/OS-Ⅱ移植到性能优异的32位ARM核微处理器LPC2214上.研究结果表明:该传感器网关可有效地应用于物联网中局部传感网的数据转换,使其能够在互联网上进行传输,具有结构简单、成本低、性能可靠等优点.%To make the transmitted data information in Internet of things achieves such characteristics as high correctness, good real-time property and security, a kind of embedded sensor gateway is designed. It can meet the requirements of Internet of things based on the analysis of the standard TCP/IP. In the design scheme, the scale of standard TCP/IP is reduced and realized, a basic structure of embedded sensor gateway and a functional Internet introducing circuit which both meet Internet of things are proposed, and the embedded operating system μC/OS- Ⅱ is transplanted on 32-bit ARM kernel microprocessor LPC2214 with advanced performance. The research results indicate that the gateway can be applied to local sensor network of Internet of things efficiently, thus the converted data can be transmitted on the Internet with such advantages as simple structure, low cost and reliable performance.