2007-213180 is referenced by 86 patents.

PROBLEM TO BE SOLVED: To provide a system for an autonomous movable body for calculating a distance between the movable body and a target by a simple structure.SOLUTION: This movable body system is provided with the autonomous movable body 1 and the target 13 to which the autonomous movable body approaches. The movable body 1 is provided with a first wave transmission means 2 transmitting ultrasonic waves and a first wave receipt means 3 receiving ultrasonic waves, while the target has a second wave transmission means 8 transmitting ultrasonic waves. In a first control mode, a distance to an obstacle 90 is calculated based on a period from transmission of ultrasonic waves by the first wave transmission means 2 to receipt of reflection waves by the first wave receipt means 3. In a second control mode, a distance to the target 13 is calculated based on a period from transmission of ultrasonic waves by the second wave transmission means 8 to receipt of the ultrasonic waves by the first wave receipt means 3.

Title
Movable body system
Application Number
2006-030552
Publication Number
2007-213180
Application Date
February 8, 2006
Publication Date
August 23, 2007
Inventor
Kawagoe Nobukazu
Assignee
Figla
IPC
G01S 15/08
G05D 01/02