Abstract:
An apparatus for managing environments of facilities by using an RFID tag and a wireless sensor node is provided to strengthen the security for environmental information of the facilities by using the RFID tag and a reader. An apparatus for managing environments of facilities using an RFID tag and a wireless sensor node includes an RFID tag(110), a plurality of wireless sensor nodes(120) and an embedded board(130). The RFID tag stores user information for user authentication. The wireless sensor nodes are attached to predetermined positions in the facilities. The wireless sensor nodes collect environmental information including temperature, humidity, pressure, and luminance in the facilities and transmit the collected environmental information. The embedded board displays the environmental information for each facility by collecting the environmental information collected from the wireless sensor nodes and confirms the environmental information of the facilities through user authentication using the RFID tag to control the access to the facilities.
Abstract:
수중에서작동하는수중로봇의위치추정방법이제공된다. 수중로봇의위치추정방법은수중또는수면상에위치되는제1 몸체및 상기제1 몸체에케이블에의하여연결된상태로목표물체로이동가능한제2 몸체의상대적인위치추정방법으로서, 제1 몸체및 제2 몸체를정렬시키는단계, 제2 몸체가목표물체에근접할수 있도록케이블의길이를조절하는단계, 케이블의길이를고려하여제2 몸체의위치를파악하기위해탐색영역을설정하는단계, 탐색영역내에서제2 몸체의크기이상의대상물을선정하는단계, 제2 몸체의움직임과비교하여선정된대상물중 제2 몸체를파악하는단계및 파악된제2 몸체의위치를추정하는단계를포함한다.