摘要：In th is paper we prop ose new serv ice mo del prev en ting a los t chi ld as an application u sing theco nvention al fing erprint reader an d discuss a related sy stem device arch itecture. If ou r m odel is applied tom obile termin al su ch as a PDA, it can be u sed the more easily anytime, ev erywhere. Mo reover th ep ro blems prev enting an old p erson of d em en tia and a lost child can b e resolved in a systematic sid e as am ore scien tific and econ omic m eth od
关键词：Fin gerp rin t Identification ; Fingerprin t R eader; Lo st Child Preven tio n; Old Perso n of;Dementia
