基于无线传感器网络的儿童防走失系统研究与设计

摘要

For children wandered off on the issue of social,this paper design a wireless sensor network based on the child anti-lost system can play an effective child protection.The system includes a sub-machine,machine tools and hosts.Applications will be sub-machine placement in children,machine tools by the child's guardian or custodian to carry the handset and the base unit via radio transmitter module and receiver module for wireless data communication,the host and protection within the region connected to the node.When a child is left after a preset range workhorses will alarm to remind the guardian,while children will be displayed on the host where the position to solve the problem of guardian care of children, the realization of children's regionalization,real-time monitoring to ensure that the children in the region real-time position visible,controllable range of children's activities.The design of the radio sensor network applications in life,the prevention of child anti-lost child wandered off and intelligent development has a certain research value and significance.%　　针对社会上儿童走丢这一问题，本文设计一套基于无线传感网络的儿童防走失系统，可对儿童起到有效的保护作用。本系统包括子机、母机和主机。应用中将子机放置在儿童身上，母机由儿童的监护人或看管人携带，子机和母机通过无线电发射模块和无线电接收模块进行无线数据通讯，主机与防护区域内的无线传感器节点相连接。当儿童离开预设范围后母机就会报警提醒监护人，同时主机上会显示儿童的所在方位，解决了监护人对儿童看管的问题，实现了对儿童区域化、实时性监测，保证了儿童在区域内的实时位置可见、活动范围可控。本设计将无线电传感器网络应用在生活中，对防止儿童走失的发展具有一定的研究价值和指导意义。