基于iOS平台的无线传感器定位追踪系统应用研究
发布时间：2019-04-10 09:17
【摘要】：随着无线传感器技术的快速发展,功能丰富、品类繁多的无线传感器产品已逐渐融入人们的生活。为了解决无线传感器的定位问题,出现了众多高精度、低功耗、低成本的定位技术。但在如今移动互联网大潮中,利用手机终端对无线传感器进行定位的解决方案却始终不太理想。这些解决方案通常直接在无线传感器中装载卫星定位模块,或者只允许手机终端在处于无线传感器信号覆盖范围内时对其进行定位。这两种方式中,前者提高了无线传感器模块的成本和功耗,后者则应用范围较窄。本文针对上述问题,基于iOS平台设计和实现了一套高效、便捷、低成本、低能耗的无线传感器定位系统。该系统以智能手机iPhone作为控制终端,以低功耗蓝牙模块作为定位目标,根据二者是否处于可连接范围,采用基于蓝牙的RSSI测距或基于云服务器的Crowd-GPS技术两种方式,实现对目标无线传感器的定位追踪。论文主要研究内容和创新点如下:(1)基于对无线传感器定位、iOSAPP开发、服务器开发等相关技术的分析和研究,完成了基于iOS平台的无线传感器定位系统的设计和实现,包括移动客户端、无线传感器和云服务器三大部分的开发与配置。(2)采用苹果公司基于蓝牙4.0低功耗技术发布的软硬件创新技术iBeacon,和基于蓝牙的RSSI(Received SignalStrength Indication,接收的信号强度指示)测距技术,实现了 iPhone与无线传感器在可连接范围内时对无线传感器的定位功能。(3)针对iPhone与无线传感器不在可连接范围内的情况,采用了 Crowd-GPS(人群GPS)的设想,将所有用户均视为Crowd-GPS中的"侦察兵",每当用户移动时都将自己所探测到的无线传感器"位置情报"上传至云服务器。通过这种方式,云服务器可以持续更新和保持所有无线传感器的最新位置信息,当某用户需要寻找自己遗失的无线传感器时,只要向云服务器发起请求即可。本文从理论上分析了该技术的可行性,并在设计中实现了 Crowd-GPS定位技术。最后论文从稳定性和实用性两方面对基于iOS的无线传感器定位追踪系统进行了测试,从测试结果来看,系统的各部分运行正常,实现了设计预期的目标。
[Abstract]:With the rapid development of wireless sensor technology, many kinds of wireless sensor products have been gradually integrated into people's lives. In order to solve the localization problem of wireless sensors, there are many high-precision, low-power, low-cost positioning technology. However, in today's mobile Internet tide, mobile phone terminals for wireless sensor positioning solutions have not been ideal. These solutions typically load satellite positioning modules directly in wireless sensors or allow mobile terminals to locate them only when they are within the coverage of wireless sensor signals. In these two ways, the former increases the cost and power consumption of the wireless sensor module, while the latter has a narrower range of applications. In this paper, a wireless sensor positioning system with high efficiency, convenience, low cost and low energy consumption is designed and implemented based on iOS platform. The system uses smart phone iPhone as the control terminal and low power Bluetooth module as the positioning target. According to whether the two are in the connectable range, the system adopts two ways: RSSI ranging based on Bluetooth or Crowd-GPS technology based on cloud server. The target wireless sensor can be located and tracked. The main research contents and innovations are as follows: (1) based on the analysis and research of wireless sensor location, iOSAPP development, server development and other related technologies, the design and implementation of wireless sensor positioning system based on iOS platform is completed. It includes the development and configuration of mobile client, wireless sensor and cloud server. (2) iBeacon, a software and hardware innovation technology released by Apple based on Bluetooth 4.0low-power technology, and a Bluetooth-based RSSI (Received SignalStrength Indication, are adopted in the development and configuration of the mobile client, wireless sensor and cloud server. The received signal strength indication) ranging technology realizes the positioning function of the wireless sensor when the iPhone and the wireless sensor can be connected. (3) aiming at the situation that the iPhone and the wireless sensor are not in the connectable range, The idea of Crowd-GPS (crowd GPS) is adopted, which considers all users as "scouts" in Crowd-GPS, and uploads "location intelligence" of the wireless sensor they detect to the cloud server whenever the user moves. In this way, the cloud server can continuously update and keep up-to-date location information for all wireless sensors, and when a user needs to find his or her missing wireless sensor, just make a request to the cloud server. In this paper, the feasibility of this technology is analyzed theoretically, and the Crowd-GPS positioning technology is realized in the design. Finally, the paper tests the wireless sensor location and tracking system based on iOS from two aspects of stability and practicability. From the test results, each part of the system is running normally and achieves the expected goal of the design.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN925;TP212.9
[Abstract]:With the rapid development of wireless sensor technology, many kinds of wireless sensor products have been gradually integrated into people's lives. In order to solve the localization problem of wireless sensors, there are many high-precision, low-power, low-cost positioning technology. However, in today's mobile Internet tide, mobile phone terminals for wireless sensor positioning solutions have not been ideal. These solutions typically load satellite positioning modules directly in wireless sensors or allow mobile terminals to locate them only when they are within the coverage of wireless sensor signals. In these two ways, the former increases the cost and power consumption of the wireless sensor module, while the latter has a narrower range of applications. In this paper, a wireless sensor positioning system with high efficiency, convenience, low cost and low energy consumption is designed and implemented based on iOS platform. The system uses smart phone iPhone as the control terminal and low power Bluetooth module as the positioning target. According to whether the two are in the connectable range, the system adopts two ways: RSSI ranging based on Bluetooth or Crowd-GPS technology based on cloud server. The target wireless sensor can be located and tracked. The main research contents and innovations are as follows: (1) based on the analysis and research of wireless sensor location, iOSAPP development, server development and other related technologies, the design and implementation of wireless sensor positioning system based on iOS platform is completed. It includes the development and configuration of mobile client, wireless sensor and cloud server. (2) iBeacon, a software and hardware innovation technology released by Apple based on Bluetooth 4.0low-power technology, and a Bluetooth-based RSSI (Received SignalStrength Indication, are adopted in the development and configuration of the mobile client, wireless sensor and cloud server. The received signal strength indication) ranging technology realizes the positioning function of the wireless sensor when the iPhone and the wireless sensor can be connected. (3) aiming at the situation that the iPhone and the wireless sensor are not in the connectable range, The idea of Crowd-GPS (crowd GPS) is adopted, which considers all users as "scouts" in Crowd-GPS, and uploads "location intelligence" of the wireless sensor they detect to the cloud server whenever the user moves. In this way, the cloud server can continuously update and keep up-to-date location information for all wireless sensors, and when a user needs to find his or her missing wireless sensor, just make a request to the cloud server. In this paper, the feasibility of this technology is analyzed theoretically, and the Crowd-GPS positioning technology is realized in the design. Finally, the paper tests the wireless sensor location and tracking system based on iOS from two aspects of stability and practicability. From the test results, each part of the system is running normally and achieves the expected goal of the design.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN925;TP212.9
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