A timer IC is operated by power supplied from a standby power source so as to output a start-up signal for starting a microcomputer every time that the time period during which a non-operating state of the microcomputer continues reaches a predetermined value. In one aspect of the invention, a quality management system uses an error rate measurement module to automatically monitor the quality of an organizational operation. An own-position estimation unit calculates an own position of a mobile unit moving through the space by matching measurement data acquired by the measurement unit with map data representing information about the object in the space. Heated air is introduced into the supply manifold and travels through to the return outlet and through an outlet hose. The belt-shaped sound absorbing member has a width ranged from 40% to 90% of the maximum width of the tire, and a thickness ranged from 5 mm to 50 mm.