【摘要】：隨著社會的不斷發(fā)展,經濟的高速增長,人們生活水平的迅猛提升,隨之而來的是人們的生活范圍在不斷的擴大,同時人們旅行的頻率也在不斷的提高。人們在享受著便捷交通的同時,也不斷的被旅途中的各種問題所糾纏著。其中旅途中行李丟失是最為突出的問題。在當前時代背景下,人們旅行具有運動速度快、旅行距離遠、目的地陌生等特點,同時軌道交通和公共交通設施具有車次頻率高、客流量大、乘客成分復雜等特點,所以一旦行李落在火車、公交車、出租車等公共交通設施上很難找回。并且在火車站、汽車站、機場等人流量,人口成分復雜的地方很容易出現行李錯拿、丟失的情況。如何設計一種可同時實現防盜、可追蹤、可報警等功能,并且成本適中、可靠穩(wěn)定、利于擴展的智能箱包系統就顯得尤其重要了�，F在市面上的拉桿箱在旅行中的用戶體驗性能較差,只能在拉桿箱與手機相連接時才能記錄拉桿箱為位置,一旦拉桿箱丟失,現有產品在追回上基本上無能為力。并且現有的智能拉桿箱都是以“智能”二字作為噱頭,其在續(xù)航時間上普遍不長,基本采用的是干電池。無法實現拉桿箱的遠程定位與找回。針對現場有產品的種種不足,本文提出一種基于物聯網技術的智能箱包系統,可以通過移動終端設備對智能箱包進行實時路徑監(jiān)控,實現丟失報警與找回功能,不僅能夠防丟失,還可以實現開箱提醒,開箱照明功能,其內置鋰電池不同于干電池蓄電功能差可直接用室電充電。并且開發(fā)專屬的智能拉桿箱APP,實現人機互聯帶給用戶更便捷更舒適更安全地旅行體驗。系統主要包括定位系統、運動狀態(tài)監(jiān)控系統、通信系統、藍牙通信系統和手機APP客戶端。定位系統以GPS全球定位系統為基礎,為了實現遠程的路徑監(jiān)控,結合信息融合進行捷聯導航開發(fā),實現定位的精準高效。運動狀態(tài)監(jiān)控系統以三軸陀螺儀和加速度計為基礎,結合定位系統中的捷聯導航算法,設計姿態(tài)角解析算法,實現箱包姿態(tài)角度準確解析,從而達到運動狀態(tài)監(jiān)控的目的。通信系統以GPRS模塊為核心開發(fā),使箱包可以接入4G移動網絡,當箱包與用戶脫離后通過4G網絡與用戶進行通信。藍牙通信系統以藍牙4.0技術為核心實現箱包與手機客戶端的鏈接,同時設計RSSI測距算法實現箱包與用戶距離的距離計算,從而實現箱包的防盜功能,即在箱包與用戶距離超過十米時,箱包與APP同時報警。除此之外,本系統為了人機的交互體驗,開發(fā)基于Android平臺的APP客戶端,內置地圖實現遠程定位與找回、防盜和狀態(tài)監(jiān)控的可視化。本文以硬件電路為依托展開,主要對定位、通信、藍牙、電源進行電路設計與研制。使用STM32處理器作為系統的主控芯片,采用SIM808完成對藍牙、通信、定位功能的電路開發(fā)。在硬件開發(fā)的基礎上,設計捷聯導航和運動狀態(tài)監(jiān)控算法,并設計APP客戶端。通過測試,系統的各部分電路設計合理可靠,算法穩(wěn)定準確,APP運行流暢達到了預期的設計目標和要求,為基于物聯網技術的智能箱包系統進一步的優(yōu)化與升級提供基礎。
[Abstract]:With the development of the society, the high-speed growth of the economy and the rapid increase of people's living standard, the people's living range is expanding continuously, and the frequency of people's travel is constantly increasing. While enjoying convenient transportation, people are constantly being entangled by various problems in the journey. In which the loss of luggage in the journey is the most outstanding issue. in that present era, people travel have the characteristics of fast moving speed, long travel distance, strange destination and the like, and meanwhile, the rail transit and the public transport facilities have the characteristics of high vehicle sub-frequency, large passenger flow, complex passenger components and the like, so that once the luggage is on the train and the bus, The taxi and other public transport facilities are difficult to retrieve. In addition, in the train station, the bus station, the airport and other people's traffic, the complicated place of the population is easy to carry out the baggage mistake, the lost condition. It is especially important to design a smart case system which can realize the functions of anti-theft, trackable and alarm, and has the functions of moderate cost, reliable and stable, and being beneficial to the expansion. The pull-bar box on the market is in poor performance in the travel, and can only be used to record the position of the draw bar box when the draw bar box is connected with the mobile phone, and the existing product can be basically powerless when the draw bar box is lost. And the existing intelligent pull rod box is used as an intelligent head with the word intelligence, which is generally not long in the endurance time, and basically adopts a dry battery. And can not realize the remote location and recovery of the draw bar box. Aiming at the defects of the product in the field, the invention provides an intelligent bag system based on the Internet of Things technology, which can carry out real-time path monitoring on the intelligent bag through the mobile terminal equipment, realize the loss alarm and the recovery function, not only can prevent the loss, but also can realize the open-box reminding, And the built-in lithium battery is different from the power storage function difference of the dry battery and can be directly charged by the chamber. And the exclusive intelligent pull-bar box APP is developed, so that the man-machine interconnection can be realized to bring a more convenient and more comfortable and safer traveling experience for the user. The system mainly comprises a positioning system, a motion state monitoring system, a communication system, a Bluetooth communication system and a mobile phone APP client. The positioning system is based on the GPS global positioning system. In order to realize the remote path monitoring, the strapdown navigation development is carried out in combination with the information fusion to realize the accurate and efficient positioning. The motion state monitoring system is based on the three-axis gyroscope and the accelerometer, and combined with the strapdown navigation algorithm in the positioning system, the attitude angle analysis algorithm is designed, so that the position angle of the case is accurately analyzed, so that the purpose of monitoring the motion state is achieved. The communication system is developed by using the GPRS module as the core, so that the case can be connected with the 4G mobile network, and when the case is separated from the user, the case can be communicated with the user through the 4G network. The Bluetooth communication system uses the Bluetooth 4.0 technology as the core to realize the link between the case and the mobile phone client, and meanwhile, the RSSI ranging algorithm is designed to realize the distance calculation between the case and the user, so as to realize the anti-theft function of the case, that is, when the case and the user are more than ten meters, the case and the APP simultaneously alarm. In addition, in order to experience the man-machine interaction, the system develops an app client based on the Android platform, and the built-in map realizes the visualization of remote location and recovery, anti-theft and state monitoring. Based on the hardware circuit, this paper mainly designs and develops the positioning, communication, Bluetooth and power supply. The STM32 processor is used as the main control chip of the system, and the circuit development of the Bluetooth, the communication and the positioning function is completed by using the SIM808. Based on the hardware development, the strapdown navigation and motion state monitoring algorithm is designed and the APP client is designed. Through the test, the circuit design of each part of the system is reasonable and reliable, the algorithm is stable and accurate, the operation of the APP is smooth, the expected design goals and requirements are met, and the basis for further optimization and upgrading of the intelligent bag system based on the internet of things technology is provided.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TS959.9;TP391.44;TN925

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