An object of the present invention is to provide a technology that improves the safety of a handicapped person when he or she goes out. In addition, another object of the present invention is to provide a technology that generates route information or surrounding information that a handicapped person can easily understand.A mount device 20 mounted to the head of a handicapped user 5 acquires information in the eye level of the user. A portable device 30 that the user 5 holds with his or her hand acquires information in the forward foot level of the user. Thus, since more detailed information can be acquired, the safety of the user 5 who goes out is improved.