Abstract
In recent years, accidents wherein roads have collapsed because of aging sewer pipes have been widely reported. To prevent such accidents it is necessary to inspect sewer pipes. We have developed a sewer pipe inspection robot inspired by peristalsis, the method that earthworms use to move. This robot comprises seven units, six joints, and a head part with a camera for inspection. In this study, we conducted field tests using actual sewer pipes, and confirmed the functioning, usefulness and potential of the robot.