基于无线传感网络的户外广告安全监测系统研究

发布时间：2018-08-06 11:53

【摘要】：现如今,户外广告已经成为一种在人们日常生活中十分常见的户外设施,随处可见的广告牌充斥着人们的周围生活。随着社会经济的飞速发展,户外广告作为大众媒体宣传的重要手段,也在迅速发展当中,越来越多的户外广告出现在人们的视野里,成为当今城市的一个关键组成元素。然而随着户外广告设施的增加,其安全监管问题不容忽视,户外广告牌因安装不牢、结构松动等原因造成倒塌事故会给周围人的生命财产安全带来严重威胁。因此,实现对户外广告的在线安全监测,可以及时发现广告牌结构方面存在的安全隐患,提前检修,防患于未然。本文在调研国内外安全监测系统研究现状的基础上,针对户外广告结构多样化的特点,提出了将无线传感器网络技术应用到户外广告的安全监测当中。监测系统通过分布在户外广告结构上的多个无线传感器节点采集倾角状态信息,由Zig Bee无线网络将各节点数据发送到嵌入式设备终端上进行数据处理,对危险情况进行实时判断预警,最后将数据由GPRS网络传送到远程数据中心上作进一步分析。本文重点进行了户外广告牌模型结构分析、系统方案的设计、无线传感器节点及网络实现、嵌入式数据处理终端应用开发、远程服务器数据中心开发,并根据异常数据的特点研究了在线监测数据处理算法,提出了相关预警判断标准。在实验室条件下,本文对无线安全监测系统各个组成模块的性能进行了测试。测试结果表明,采用的传感器节点对倾角测量的精度误差不超过0.4度,稳定性良好,一天功耗约为23.3m Ah,功耗较低;无线传感网络的通讯距离满足监测要求,无丢包现象;GPRS模块功能正常,上位机能够正常接收显示数据并实现预警功能。本系统还需要进一步功能优化和完善,以满足实际应用需求。
[Abstract]:Nowadays, outdoor advertising has become a very common outdoor facilities in people's daily life. With the rapid development of social economy, outdoor advertising, as an important means of mass media propaganda, is also developing rapidly. More and more outdoor advertisements appear in the sight of people and become a key element of modern cities. However, with the increase of outdoor advertising facilities, the problem of safety supervision should not be ignored. The collapse of outdoor billboards caused by improper installation and loosening of structure will bring serious threat to the safety of people's lives and property around them. Therefore, to realize the online safety monitoring of outdoor advertisement, we can find out the hidden danger in the structure of billboard in time, overhaul ahead of time, prevent trouble in the early stage. On the basis of investigating the present situation of security monitoring system at home and abroad, this paper puts forward the application of wireless sensor network (WSN) technology to outdoor advertising safety monitoring in view of the diversity of outdoor advertising structure. The monitoring system collects the inclination state information through several wireless sensor nodes distributed on the outdoor advertising structure, and sends the data of each node to the embedded device terminal for data processing by Zig Bee wireless network. Finally, the data are transmitted from the GPRS network to the remote data center for further analysis. This paper focuses on the analysis of outdoor billboard model, the design of system scheme, the implementation of wireless sensor node and network, the application development of embedded data processing terminal, the development of remote server data center. According to the characteristics of abnormal data, the algorithm of on-line monitoring data processing is studied, and the relevant early warning criteria are put forward. Under the condition of laboratory, the performance of each component module of wireless security monitoring system is tested in this paper. The test results show that the precision error of the sensor node is not more than 0.4 degree, the stability is good, the power consumption is about 23.3m Ah. a day, the power consumption is low, and the communication distance of the wireless sensor network meets the monitoring requirements. The function of GPRS module without packet loss is normal, and the upper computer can receive and display data normally and realize warning function. The system also needs further function optimization and improvement to meet the practical application needs.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212.9;TN92;TP274

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