Design & Implementation Of Anti-lost Children Warning System

With the rapid popularization of the Internet and the continuous development of intelligence technology,more mobiles with stronger performances appeared,which become indispensable among our daily life.They bring great conveniences and more than that,it has more benefits for public service,for instance,an Anti-lost smart bracelet can check its position timely after we install the assorted apps which depends on the techniques of GPS and socket technology.However,as a public service,the repeated work for the adaptability in different platform is money costing and time requiring,plus bracelet high price,all of which have serious limitation to its population.According to the mentioned situation,this paper investigate and made a conclusion about the current development of the location technology--iBeacon which based on the lower energy-using Bluetooth 4.0 technique,and the theory of the Apache Cordova--a cross-platform framework.At last,implement a cross-platform Anti-lost warning system based on Apache Cordova framework and iBeacon technology,also combine AngularJS and onsenUI framework.The Anti-lost warning system is mainly composed of Anti-lost device and mobile application.The Anti-lost device is a small and low cost device based on iBeacon,which can continuously sending specific signals for a long time by using energy-saving Bluetooth technology,and then the apps can recognize and analyze it.The system can fully adapt to all kinds of situation,within the range,the app will monitor the device and calculation the distance timely.If the device is beyond its range,users can apply for help,once others who install the app and get the device's signal,it will automatically send messages to help seeker.This paper makes full use of each framework's advantages,based on the cross-platform framework of Apache Cordova,implemented by combining the framework of AngularJS and onsenUI,using java framework SSH and Mysql database to achieve data interaction.The system fulfilled by using their separate advantages,which highly speed up its development process,made it easier to expand more functions and save more money.All of which helps to make this kind of Anti-lost system developing easily.