The Intelligent Bags System On The Basic Of The Internet Of Things

With the continuous development of society and the rapid growth of economy,the living standard is on the rapid increase as well,and followed by people's living area is constantly expanding,at the meantime,people travel more frequent.At the time of enjoying of the convenient traffic,people get constantly troubled by various problems on journeys.Losing the bags in the journey is the most prominent problem.On the basic of the current era,travelling has the characteristics of fast,distant,and unfamiliar with the destination,while rail transportation and public transport facilities with characteristics of high frequency,huge traffic,passenger accountancy complex.Therefore,once the bags is lost on train,bus,taxi and other public transport facilities is difficult to regain.Also,in the train station,bus station,airport and other huge traffic of people,the place of complex accountancy of population is prone to get the wrong bags,or lost them.How to design a system which can achieve anti-theft,can be tracked,alarming and other functions,and with the traits of moderate cost,reliable and stable,conducive to expand is particularly important.In the tracking devices,the main application of the domestic market is in aspect of children's anti-cheat.Now the trolley case on the market in the travel experience is upset.Only when the trolley box and mobile phone are connected,the location of trolley box can be recorded,which means if the trolley is lost,the regain of existing products is basically hopeless.And the existing smart trolley are "smart" as a gimmick word,its life is generally not long by using dry batteries.They can not achieve the functuon of remote positioning and retrieval.On this case,this paper presents a kind of intelligent bags system based on the Internet of Things technology.It can realize the real-time path monitoring of the bag through a mobile terminal,it can not only realize the function of lost-alarm and retrieval,but also can prevent the loss and achieve opening remind,opening lighting function,its in-built lithium battery is different from the dry battery,the former can be recharged with room electricity.And an app has been developed exclusively of this system to achieve human-computer interconnection and give users more convenient and more comfortable and more secure in travelling.The system mainly includes the positioning system,the movement state monitoring system,the communication system,the Bluetooth communication system and the handset APP.Positioning system is based on GPS global positioning system,which can achieve remote path monitoring,and using information fusion for navigation development,high accuracy and efficiency of positioning.Based on the three-axis gyroscope and accelerometer and using the navigation algorithms of positioning system,the motion condition monitoring system is used to design the attitude angle analysis algorithm to realize the accurate analysis of the attitude of the bag,so as to achieve the purpose of monitoring the motion state.Communication system is developed with the core of GPRS module,so that bags can get access to 4G mobile network,the bags and can communicate users can be connected by 4G network.Bluetooth communication system is based on the core of Bluetooth 4.0 technology to achieve connetion between bags and mobile clients,while RSSI ranging algorithm is designed to calculate the distance between the bag and the user to achieve the anti-theft function,that is,the bag and APP alarms at the same time if the bag and the user with distance more than ten meters.In addition,the APP based on Android platform,the inbuilt map to achieve remote location and retrieval,security and status monitoring visualization are designed to achiech the human-computer interaction experience.This article is expended on basis of the hardware circuit,which mainly aims at positioning,communication,Bluetooth,power supply circuit design and research.Using STM32 processor as the system master chip,using SIM808 to complete the development of the circuit of Bluetooth,communication,positioning function.On the basis of hardware development,strapdown navigation and motion monitoring algorithm and an APP have been designed.After the test,the circuit design of all parts of the system is reasonable and reliable,the algorithm is stable and accurate as well,and APP runs smoothly to achieve the desired design goals and requirements,and provides the basis for further optimization and upgrading of the intelligent bags system based on the Internet of Things technology.