| 摘要 |
PROBLEM TO BE SOLVED: To determine whether to enable a processor or not with high accuracy in various installation environments.SOLUTION: A camera for imaging an approaching person, has an elevation angle so that the head of the person approaching an operation distance falls within an imaging angle of view, while excluding external light from above the head from the imaging angle of view. On the basis of the generated image captured by the camera, a distance to the person in the imaging angle of view and a moving direction of the person are analyzed. Whether to enable a processor is determined on the basis of a result of the analysis, at least. When a determination to enable the processor has been made, the processor is enabled. |
