Propagation environment estimation method, propagation environment estimation system and propagation environment estimation device

A propagation environment estimation system that estimates a propagation environment of a radio wave using a scale model, the propagation environment estimation system comprising:

• a 3D printer that creates a scale model;
• an element mounter that installs a light source in the scale model, regarding the light source as a transmission station of a radio wave, the light source being capable of emitting light having directivity and scanning an irradiation direction;
• and
• a controller that controls the 3D printer and the element mounter,
• the controller being configured to further execute
• scanning an inside of the scale model with the light source,
• detecting a center light generation state in which center light directed to a measurement point set in the scale model is generated said scanning,
• detecting a position of an irradiated point appearing under the center light generation state on a light receiving sphere installed so as to have a center coincide with the measurement point, and
• estimating a direction connecting a position of the center and the position of the irradiated point as an arrival direction of the light reaching the measurement point.

A propagation environment estimation device that estimates a propagation environment of a radio wave using a scale model, the propagation environment estimation device comprising:

• a 3D printer that creates a scale model;
• an element mounter that installs a light source in the scale model, regarding the light source as a transmission station of a radio wave, the light source being capable of emitting light having directivity and scanning an irradiation direction;
• and
• a controller that controls the 3D printer and the element mounter,
• the controller being configured to further execute
• scanning an inside of the scale model with the light source,
• detecting a center light generation state in which center light directed to a measurement point set in the scale model is generated in a process of the scanning,
• detecting a position of an irradiated point appearing under the center light generation state on a light receiving sphere installed so as to have a center coincide with the measurement point, and
• estimating a direction connecting a position of the center and the position of the irradiated point as an arrival direction of the light reaching the measurement point.