Movement supporting device, movement supporting method, and program

A movement support device that supports movement of a visually impaired user, the movement support device comprising:

• an imaging device that captures an image of an environment around the user to acquire a captured image;
• a controller that calculates a safety degree indicating a level of safety regarding the user based on the captured image;
• a storage that stores a necessary safety degree table in which a predetermined action candidate as an action that can be executed by the user and a necessary safety degree indicating a safety degree necessary for the user to safely perform an action indicated by the predetermined action candidate are stored in association with each other;
• an input unit that receives input of a selection operation by the user to select an action candidate desired by the user from among the predetermined action candidates;
• and
• an output unit;
• and
• a handle configured to be grasped by the user, wherein
• the controller
• acquires a necessary safety degree corresponding to a selected action candidate from the necessary safety degree table when there has been input of the selection operation,
• does not support the user in achieving the selected action candidate when the safety degree having been calculated is less than a necessary safety degree corresponding to the selected action candidate, and
• controls the output unit to support the user in achieving the selected action candidate when the safety degree having been calculated is a necessary safety degree or more corresponding to the selected action candidate, and
• wherein the movement support device is configured to support the movement of the visually impaired user by leading the visually impaired user in a self-propelled manner while the movement support device moves together with the user in a state in which the handle is grasped by the user,
• wherein the selected action candidate comprises an action of supporting the movement of the visually impaired user, and
• wherein the controller is configured to be switchable between a normal mode in which the controller performs movement control and a request execution mode in which the controller changes or suspends the movement control and supports the user in achieving the selected action candidate.