Methods for predicting the likelihood of development of rheumatoid arthritis for individuals that present with recent-onset undifferentiated arthritis. The present invention includes a cabinet forming an exterior of the air conditioner to suck and blow an air by driving a blowing fan and an air guide provided within the cabinet to accommodate the blowing fan, the air guide guiding the air introduced into the cabinet to an air blowing port provided to the cabinet. The electrode disk is disposed within the ESD torch, shielded by an inert gas and coupled with the vibration source. The system undertakes moving obstacle detection, around view monitor, or parking assistant according to images captured by four wide-angle lenses and the gearshift signal, speed signal, turning angle signal received by a vehicular signal receiving device.