基于iOS平臺的無線傳感器定位追蹤系統(tǒng)應用研究
發(fā)布時間：2019-04-10 09:17
【摘要】：隨著無線傳感器技術(shù)的快速發(fā)展,功能豐富、品類繁多的無線傳感器產(chǎn)品已逐漸融入人們的生活。為了解決無線傳感器的定位問題,出現(xiàn)了眾多高精度、低功耗、低成本的定位技術(shù)。但在如今移動互聯(lián)網(wǎng)大潮中,利用手機終端對無線傳感器進行定位的解決方案卻始終不太理想。這些解決方案通常直接在無線傳感器中裝載衛(wèi)星定位模塊,或者只允許手機終端在處于無線傳感器信號覆蓋范圍內(nèi)時對其進行定位。這兩種方式中,前者提高了無線傳感器模塊的成本和功耗,后者則應用范圍較窄。本文針對上述問題,基于iOS平臺設(shè)計和實現(xiàn)了一套高效、便捷、低成本、低能耗的無線傳感器定位系統(tǒng)。該系統(tǒng)以智能手機iPhone作為控制終端,以低功耗藍牙模塊作為定位目標,根據(jù)二者是否處于可連接范圍,采用基于藍牙的RSSI測距或基于云服務器的Crowd-GPS技術(shù)兩種方式,實現(xiàn)對目標無線傳感器的定位追蹤。論文主要研究內(nèi)容和創(chuàng)新點如下:(1)基于對無線傳感器定位、iOSAPP開發(fā)、服務器開發(fā)等相關(guān)技術(shù)的分析和研究,完成了基于iOS平臺的無線傳感器定位系統(tǒng)的設(shè)計和實現(xiàn),包括移動客戶端、無線傳感器和云服務器三大部分的開發(fā)與配置。(2)采用蘋果公司基于藍牙4.0低功耗技術(shù)發(fā)布的軟硬件創(chuàng)新技術(shù)iBeacon,和基于藍牙的RSSI(Received SignalStrength Indication,接收的信號強度指示)測距技術(shù),實現(xiàn)了 iPhone與無線傳感器在可連接范圍內(nèi)時對無線傳感器的定位功能。(3)針對iPhone與無線傳感器不在可連接范圍內(nèi)的情況,采用了 Crowd-GPS(人群GPS)的設(shè)想,將所有用戶均視為Crowd-GPS中的"偵察兵",每當用戶移動時都將自己所探測到的無線傳感器"位置情報"上傳至云服務器。通過這種方式,云服務器可以持續(xù)更新和保持所有無線傳感器的最新位置信息,當某用戶需要尋找自己遺失的無線傳感器時,只要向云服務器發(fā)起請求即可。本文從理論上分析了該技術(shù)的可行性,并在設(shè)計中實現(xiàn)了 Crowd-GPS定位技術(shù)。最后論文從穩(wěn)定性和實用性兩方面對基于iOS的無線傳感器定位追蹤系統(tǒng)進行了測試,從測試結(jié)果來看,系統(tǒng)的各部分運行正常,實現(xiàn)了設(shè)計預期的目標。
[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.
【學位授予單位】：北京交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：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.
【學位授予單位】：北京交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN925;TP212.9
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