基于无线网络的灯光终端控制系统的实现与研究

发布时间：2018-06-17 16:46

本文选题：灯光控制 + WiFi　；参考：《南京邮电大学》2015年硕士论文

【摘要】：无线网络技术因其灵活性、移动性、便捷性在各个领域得到了广泛应用,并在某些特殊网络应用中充当重要角色。灯光终端控制系统对无线网络技术同样存在应用需求,此前的应用停留在单体单个的路灯控制,对广泛的舞台灯光、景观灯光的控制缺少应用,因此设计一种高效、灵活的广义无线灯光终端控制系统具有很高的应用价值。在研究传统灯控系统的不足之后,本文提出了一种基于无线网络的灯光终端控制系统,其以无线组网为核心并合理优化了系统性能。本文根据灯光控制系统的需求和应用场合特点,选择WiFi协议作为系统无线组网技术;在应用层选择ACN协议以实现对灯光终端的控制;在网络层通过无线AP构建了Infra基础结构型网络,然后选择了RIP路由协议来交换网络IP数据包;在系统的安全性和可靠性方面,本文选用了WPA2加密算法以提高系统安全性,设计了故障处理模块并选择了相应的备份机制以保障可靠性。在网络系统同步方面,由于NTP协议在灯光控制系统的局限性,为了提高系统可靠性,本文在NTP协议的基础上,提出了改进的LNTP协议,通过对应的系统流程和算法来保证系统的可靠同步;同时研究和分析了无线网络的覆盖范围特性及干扰问题;通过分析信号传播模型及频道分配特性后提出了最优频段分配方法及抗干扰方式。最后本文验证了时钟同步系统的有效性,并且具体设计了WiFi模块的收/发流程。本文设计的基于无线网络的灯光终端控制系统具有灵活度高、可拓展性高、易于部署等优点,可利用于体育场、演播厅、展馆等领域还可用于老旧场馆的灯光改造系统。
[Abstract]:Wireless network technology has been widely used in various fields because of its flexibility, mobility and convenience, and plays an important role in some special network applications. The lighting terminal control system also has the application demand to the wireless network technology, the previous application stays in the single individual street lamp control, to the widespread stage light, the landscape light control lacks the application, therefore designs a kind of high efficiency, The flexible generalized wireless lighting terminal control system has high application value. After studying the shortcomings of the traditional lamp control system, this paper proposes a kind of lighting terminal control system based on wireless network, which takes wireless networking as the core and optimizes the system performance. According to the demand of the lighting control system and the characteristics of the application situation, the WiFi protocol is chosen as the wireless networking technology of the system, and the ACN protocol is selected in the application layer to realize the control of the lighting terminal. In the network layer, Infra infrastructure network is constructed through wireless AP, then RIP routing protocol is chosen to exchange IP packets in the network layer, and WPA2 encryption algorithm is selected to improve the system security in terms of system security and reliability. The fault processing module is designed and the corresponding backup mechanism is selected to ensure the reliability. In the aspect of network system synchronization, because of the limitation of NTP protocol in lighting control system, in order to improve the reliability of the system, this paper proposes an improved LNTP protocol based on NTP protocol. Through the corresponding system flow and algorithm to ensure the reliable synchronization of the system, at the same time, the coverage characteristics and interference problems of wireless network are studied and analyzed. After analyzing the signal propagation model and channel allocation characteristics, the optimal frequency band allocation method and anti-jamming method are proposed. Finally, the validity of clock synchronization system is verified, and the receiving / sending flow of WiFi module is designed. The light terminal control system based on wireless network has the advantages of high flexibility, high expansibility and easy deployment. It can be used in the fields of stadium, studio, exhibition hall and so on.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP273;TN92

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