【作者】 李爱平；

【导师】 徐华中；

【作者基本信息】 武汉理工大学 ， 控制理论与控制工程， 2007， 硕士

【摘要】 由城市灯光控制系统引起的耗能与节能问题日益突出，设计一种科学、合理、高效的系统来对灯光进行管理和控制十分必要。本文在研究了传统的灯光控制系统的特点之后，提出了一种基于GPRS技术的远程灯光控制系统，该系统的核心是网络的构建、通讯安全和测控节点系统的实现。本文主要做了以下几个方面的工作：首先分析了GPRS技术的协议模型，通过与传统GSM技术的比较，得出了GPRS的技术优势。在此基础之上，设计了远程灯光控制系统的总体方案，即测控节点、通信网络以及监控中心三大模块。探讨了GPRS的网络安全接入机制，指出了其安全方面存在的缺陷，开展了对GPRS网络数据传输加密的算法研究，结合远程灯光系统控制的特点，提出采用双密钥3DES算法。以P89C669型单片机为控制器核心，设计了远程灯光控制系统监控终端的硬件平台，并设计了外围供给电源、通讯模块、输出控制、液晶显示以及信号采集等电路。完成了测控节点的软件设计，对整个软件流程采用了模块化的设计原则，即：系统初始化、人机接口、模拟信号采集与处理、命令执行功能以及GPRS通讯等模块。重点分析了CMS91的AT指令及PPP协议，实现了单片机与CMS91之间的数据传输。在分析了socket编程原理基础之上，通过比较选择了CSocket封装类来完成实际的设计工作。然后根据C／S网络通信模式对监控中心软件进行了总体设计，进一步说明了监控中心的软件结构及其实现的各部分功能模块的设计。更多还原

【Abstract】 Because issues caused by the city lighting control system of energy consumption and energy conservation have become increasingly prominent, It’s necessary for us to design a scientific, rational, efficient systems for the management and control of lighting. After characteristics of traditional lighting control system is researched, remote control lighting system based on the GPRS technology is presented, whose criterion is construction of network, security of communication and monitoring nodes of system. The main work of this dissertation are as follows:The protocol model of GPRS technology is analyzed at first, compared with the GSM, conclude the GPRS advantages. And overall scheme of the remote lighting control system is designed. That’s to say, monitor terminal, communication network and monitoring center.Access security mechanism of the GPRS network discussed ,whose security flaws are pointed out. GPRS data transmission encryption algorithm is researched, combined with the remote control lighting system features , two key 3DES algorithm are brought forward.Hardware platform of the remote lighting control system is designed based on the P89C669 microprocessor controller. And other circuits, such as power supply, communication model, the output control, LCD display and signal sample.The monitor terminal software is completed, using a modular design principle, namely: system initialization, Human-machine interface, analog signal processing, order enforcement and GPRS communication, and so on. The AT commands and PPP protocol are analyzed in detail, completed the data transmission between SCM and CMS91 model.Based on the analysis of socket programming principles, CSocket is chosen to design the monitoring center. According to client-server network communications mode, the overall scheme of monitoring center is designed and the software architecture and models are further illuminated in detail.更多还原