Recently, converging Big Data and IoT(Internet of Things)has become mainstream, and public sector is no exception. In particular, this combinationis applicable to crime prevention in Korea. Crime prevention has evolved from CPTED (Crime Prevention through Environmental Design) to ubiquitous crime prevention;however, such a physical engineering method has the limitation, for instance, unexpected exposureby CCTV installed on the street, and doesn't have the function that automatically alarms passengers who pass through a criminal zone.To overcome that, this paper offers a crime prevention method using Big Data from public organizations along with IoT. We expect this work will help construct an intelligent crime-prevention system to protect the weak in our society.

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This study aimed to determine the effects of self-control on Internet immersion in adolescence and the moderating effects of negative parenting attitudes. Furthermore, this study is intended to provide education, prevent Internet immersion, and give parent education so that adolescents could desirably use the Internet. To this end, a survey was conducted on 249 male and female adolescents at the national level. Self-control was used as an independent variable, parenting attitude as a parameter, and Internet immersion as a dependent variable. This study obtained the following results. First, the negative maternal parenting attitude has moderating effects on the impact of self-control on Internet immersion, whereas a negative paternal parenting attitude has no moderating effect. Second, self-control was identified as an essential variable in preventing Internet immersion in adolescence; a significant association was found between maternal parenting attitude and self-control. It is ultimately necessary to improve self-control and maternal child-rearing education at home to solve Internet immersion in adolescence. Furthermorenecessary to get attention and support for maternal education regarding Internet over-immersion in cooperation with schools and communities.