Title:
POSITION RECOGNITION METHOD FOR A MOBILE ROBOT DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/030142
Kind Code:
A2
Abstract:
The present invention relates to a position recognition method for a mobile robot using radio frequency identification (RFID), and to a mobile robot using the method. More specifically, the present invention relates to a position recognition method for a mobile robot which moves over the floor to which a plurality of RFID tags are attached at predetermined intervals, the method comprising the steps of: emitting an RFID signal to the plurality of RFID tags; receiving identification data and position data from the plurality of RFID tags; adjusting the strength of the transmission power with which the RFID signal is emitted, corresponding to the received position data of the plurality of RFID tags; and deducing the current position of the mobile robot by the received position data of the plurality of RFID tags and the strength of the adjusted transmission power. The present invention enables more accurate recognition of the position of the mobile robot by dividing the strength of the transmission power of an RFID reader into a plurality of levels, and altering the transmission power between these levels. In particular, the present invention enables accurate recognition of the position of the mobile robot even when the distance between the RFID tags is large, and consequently even when a small number of RFID tags are installed. Thus, the present invention is also highly advantageous economically in that it can reduce the cost of installing the RFID tags.
Inventors:
KIM, Sang Woo (# Gyosu Apt, 756Jigok-dong, Nam-g, Pohang-si Gyeongbuk-do 790-834, 790-834, KR)
김상우 (경상북도 포항시 남구 지곡동 756번지 교수아파트 7동 1003호, 790-834 Gyeongbuk-do, 790-834, KR)
PARK, Young Soo (#304, LG research-dong Pohang Univ. of Science,Hyoja-dong, Nam-g, Pohang-si Gyeongbuk-do 790-784, 790-784, KR)
박영수 (경상북도 포항시 남구 효자동 포항공과대학교 LG연구동 304호, 790-784 Gyeongbuk-do, 790-784, KR)
김상우 (경상북도 포항시 남구 지곡동 756번지 교수아파트 7동 1003호, 790-834 Gyeongbuk-do, 790-834, KR)
PARK, Young Soo (#304, LG research-dong Pohang Univ. of Science,Hyoja-dong, Nam-g, Pohang-si Gyeongbuk-do 790-784, 790-784, KR)
박영수 (경상북도 포항시 남구 효자동 포항공과대학교 LG연구동 304호, 790-784 Gyeongbuk-do, 790-784, KR)
Application Number:
KR2009/005174
Publication Date:
March 18, 2010
Filing Date:
September 11, 2009
Export Citation:
Assignee:
TONGMYONG UNIVERSITY INDUSTRIAL-ACADEMIC COOPERATION FOUNDATION (535Yongdang-dong, Nam-gu, Busan 618-270, 618-270, KR)
동명대학교 산학협력단 (부산 남구 용당동 535번지, 618-270 Busan, 618-270, KR)
KIM, Sang Woo (# Gyosu Apt, 756Jigok-dong, Nam-g, Pohang-si Gyeongbuk-do 790-834, 790-834, KR)
김상우 (경상북도 포항시 남구 지곡동 756번지 교수아파트 7동 1003호, 790-834 Gyeongbuk-do, 790-834, KR)
PARK, Young Soo (#304, LG research-dong Pohang Univ. of Science,Hyoja-dong, Nam-g, Pohang-si Gyeongbuk-do 790-784, 790-784, KR)
동명대학교 산학협력단 (부산 남구 용당동 535번지, 618-270 Busan, 618-270, KR)
KIM, Sang Woo (# Gyosu Apt, 756Jigok-dong, Nam-g, Pohang-si Gyeongbuk-do 790-834, 790-834, KR)
김상우 (경상북도 포항시 남구 지곡동 756번지 교수아파트 7동 1003호, 790-834 Gyeongbuk-do, 790-834, KR)
PARK, Young Soo (#304, LG research-dong Pohang Univ. of Science,Hyoja-dong, Nam-g, Pohang-si Gyeongbuk-do 790-784, 790-784, KR)
International Classes:
B25J13/08; G05D1/02; G06K17/00; B25J13/08; G05D1/02; G06K17/00
Attorney, Agent or Firm:
MI PATENT & LAW FIRM (5Fl, Hongeun bldg. 824-22,Yeoksam-dong, Gangnam-gu, Seoul 135-080, 135-080, KR)