【作者】 翟羽佳；

【导师】 吴仲城；

【作者基本信息】 中国科学技术大学 ， 物理电子学， 2011， 硕士

【摘要】 物联网将会是未来很长一段时间内IT产业的发展趋势,数字整合的需求日益增长,对作为感知层核心组成元素的传感器的开放性和互操作性提出了越来越高的要求。本文就传感器接口标准化所将涉及的关键技术问题进行了比较深入的探讨,主要内容如下:1)调研分析了物联网发展战略及现有的传感器接口/网络的标准体系,明确传感器接口标准化体系设计的目标,在此基础上提出了传感器接口标准化设计的总体模型;2)基于软硬分离的模块化原则,将传感器接口标准分解为信号接口与数据接口。信号接口以传感器的输出信号类型为分类依据,对传感器的输出信号及其接线方式等做出规范说明;数据接口分为两方面,一个是传感器节点的数据描述,比如模拟输出传感器接入相应的标准化接口模块构成一个传感器节点,另一个是传感器的数据描述,对数据接口进行了建模并给出了部分模板;3)基于信号接口标准给出了标准化接口模块的硬件设计,并实际设计实现了电流型、电压型以及数字IO型模块,给出了相应的硬件选型以及电路设计与实现;进行了标准化接口模块的软件设计,说明了详细的固件代码设计。除传统串口外,提供以太网接口,嵌入UDP协议,提供后期开发的便利接口;4)初步探讨了标准体系的应用场景,从底层硬件到上层开发平台。更多还原

【Abstract】 The Internet of things will be the trend of IT industry development trends in the long term. Growing demand for digital convergence asks for higer requirements for the openness and interoperability of sensors, which is the core element of perception level. The thesis will discuss the key issues of standardization of the sensor interface, which involves the following aspects:1) The thesis analyzes the development strategy and the standard system of the existing sensor interface / network standards, specify the design goals of sensor interface standardization system, put forward the overall design of sensor interface standard model on this basis;2) Based on the principle of hard and soft modular separation, the sensor interface standard is divided into signal interface and data interface. The signal interface uses the sensor’s output signal as the classification basis and gives a regulated statement for the output signal of sensor and its wiring;the data interface is divided into two aspects, one is the description of the data of sensor nodes, such as access to the corresponding analog output sensors from the standardized interface module, the other is the description of sensor data, gives part of the modeling template for the data interface;3)The thesis states a standardized hardware interface module design basing the signal interface and implements the actual design of the current type, voltage, and digital I/O module, the corresponding hardware selection and circuit design and implementation; the software design of standardized interfaces Module, detailed description of the firmware code design are also carried out. In addition to traditional serial port, the Ethernet interface, embedded UDP protocol, the interface provides the convenience of later development;4) The thesis also initially discussed the application of the standards scene, from the hardware to the development platform.更多还原