“最揪心的事莫过于一转眼间发现孩子突然不见了。”这是一个母亲的肺腑之言。近年来,儿童安全问题逐渐成为社会关注的热门话题。作为弱势群体的儿童很容易受到意外伤害,孩子失踪的新闻报道屡见不鲜,而作为儿童监护人的家长很难做到全天候24小时监护和保护孩子。据统计,我国3-16岁的儿童约为2亿人,每年儿童失踪数高达20万人,而找回率大概只占有0.1%!与国外相比,中国对于失踪人口的寻找缺乏必要的技术手段以及 “The most worried thing than in a blink of an eye suddenly found the child disappeared.” "This is a mother’s heartfelt words. In recent years, children’s safety has gradually become a hot topic of social concern. As vulnerable groups of children are vulnerable to accidental injuries, the news of missing children is not uncommon, and parents, guardians of children, are difficult to guard and protect their children 24 hours a day. Statistics show that there are about 200 million children aged 3-16 in our country, and the number of missing children is as high as 200,000 each year, while the recovery rate is only 0.1%. Compared with other countries, China lacks the necessary technology to find the missing population Means as well