使用Contiki-NG构建无线传感器网络实战
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更新于2024-07-18
收藏 11.32MB PDF 举报 "Practical Contiki-NG: Programming for Wireless Sensor Networks" by Agus Kurniawan 是一本关于如何使用Contiki-NG操作系统开发和实施无线传感器网络（WSN）的指南，特别适合物联网（IoT）和云服务器的初学者。
这本书深入探讨了Contiki-NG在感应、通信和能源优化方面的优势，旨在帮助读者利用WSN解决自动化问题。通过实践项目和逐步指导，读者将学习如何在Contiki-NG平台上进行编程，实现感应、执行、连接性构建以及利用IoT和云计算技术。
书中涵盖的知识点包括：
1. **Contiki-NG环境准备与设置**：学习如何配置和安装Contiki-NG开发环境，以便开始编写WSN应用程序。
2. **Contiki-NG平台基础**：理解Contiki-NG的基础架构，了解其如何支持WSN的构建，包括节点间的通信机制和能量管理策略。
3. **开发Contiki-NG程序**：掌握Contiki-NG的编程语言和API，编写自己的WSN应用程序，实现特定的功能需求。
4. **感应与执行**：学习如何在Contiki-NG平台上实现传感器数据的采集和执行器的控制，这在WSN中是至关重要的。
5. **构建中间件**：设计和实现适用于Contiki-NG节点的中间件，以增强网络功能和数据处理能力。
6. **IoT程序开发**：使用Contiki-NG环境构建简单的物联网程序，将WSN与云端服务集成，实现远程监控和控制。
7. **应用示例**：通过详细的步骤和示例场景，如环境监测、智能家居等，帮助读者将理论知识转化为实际操作。
本书面向的读者群体包括开发者、学生、研究人员以及对WSN感兴趣的任何人。无论您是物联网领域的初学者还是有经验的工程师，都能从这本书中获益，快速掌握Contiki-NG用于构建WSN的强大功能。
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Introduction toWireless Sensor Networks
A Wireless Sensor Network (WSN) is a board system with the connectivity
capability to sense data and/or to perform actions. Sometimes the WSN
board is called a WSN mote. The main objective of implementing a WSN
mote is to capture physical objects in digital form and then transfer them
to a certain server. Research on WSN topics is an intense study area since
there are a lot of problems in need of solving, such as mote hardware
design, networking, infrastructure, and security.
Nowadays, hardware manufacturers grow up fast. You will find that
there are a lot of new boards on the market, such as Arduino, Raspberry Pi,
BeagleBone, Intel Edison, NodeMCU, Teensy, Tessel, and so on. This is the
era of the Internet of Things (IoT). It’s estimated that there are billions of
IoT devices connected to the Internet, based on Gatner’s report. Since IoT
board demand is high, the board price could be quite cheap. Furthermore,
the open source hardware movement has had an impact on the growing
board industry. People can design and make their own boards for special
purposes.
Back to our WSN mote topic—how to describe a WSN mote? In
general, a WSN mote consists of a microcontroller (MCU), sensor/
actuator, and wireless module. You can see it in Figure1-1. The MCU is
the center of processing in a WSN mote. It has a responsibility to ensure
the system runs well. In other designs, the MCU can be replaced by an
MPU (microprocessor), depending on whether there is a battery issue or
not. The second part is the sensor/actuator. A sensor can capture physical
objects, such as temperature, humidity, and compass direction. An actuator
can perform a certain action, such as lighting an LED, generating sound,
or running a motor. Some WSN motes may provide sensor devices only,
but other WSN motes may use both a sensor and an actuator inside the
board. Again, it depends on your design. The last part is the wireless
module. It’s used to transfer data from the mote to a network device; for
instance, gateway, server application, or cloud application. Selecting the
Chapter 1 IntroduCtIon toWIreless sensor netWorks
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