发明名称 |
SYSTEM AND METHOD FOR PURSUIT A LOST CHILD |
摘要 |
PURPOSE: A system for tracing a missing child using the size of a location signal transmitted from local distance and a method of the same are provided to sense a missing child occurred within local area, thereby rescuing the missing child in a short time. CONSTITUTION: A missing child occurrence sensor(10) senses occurrence of a missing child by the size of the location signal transmitted from local distance, and generates a missing child occurrence signal. An active location tracer(20) transceives the missing child occurrence sensor and a signal within a broadband area where the missing occurrence signal is occurred, and traces a missing child point into the size and the direction of a received signal. The missing child occurrence sensor includes a location transmitter(11) and a location receiver which generates a location signal periodically(12). If the size of the location signal is less than a critical value, the location receiver generates the missing child occurrence signal.
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申请公布号 |
KR20100104410(A) |
申请公布日期 |
2010.09.29 |
申请号 |
KR20090022801 |
申请日期 |
2009.03.17 |
申请人 |
CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMY COOPERATIONFOUNDATION;SNU R&DB FOUNDATION |
发明人 |
CHOI, YOUNG WAN;KWON, YOUNG BIN;PARK, HO HYUN;LEE, JEONG WOO;PARK, JAE HWA;KIM, KWANG JIN |
分类号 |
H04W4/02;H04W8/08;H04W84/10 |
主分类号 |
H04W4/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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