都联网是基于物联网智能终端为中小学生、老人提供位置、到校离校提醒或到达某一区域提醒、公交查询等服务的应用服务系统，系统归属北京天一众合科技股份有限公司。
Doulianwang is based networking intelligent terminal to schoolchildren, the elderly position, to remind school leavers or reach a certain area reminded, application services and other services, public transport query system, the system CHUNGHOP attribution Beijing Tianyi Science and Technology Co., Ltd..