Automatic travel work machine, automatic travel grass mower, grass mower, and grass mower automatic travel system

An autonomous traveling work machine comprising:

• a traveling machine body;
• a positioning receiver configured to receive a positioning signal from a navigation satellite;
• an autonomous traveling control device configured to perform autonomous traveling along a traveling path based on the positioning signal;
• an inclination detection unit configured to detect inclination of the traveling machine body and output inclination angle information;
• an inclination angle determination unit configured to determine an inclination angle based on the inclination angle information;
• a rotation control mechanism configured to rotate the positioning receiver with one or more degrees of freedom;
• and
• a traveling path setting unit configured to set a traveling path for the traveling machine body in advance,
• wherein the traveling path setting unit generates a plurality of line traveling paths that are parallel with a teaching traveling route obtained by manual operation of the traveling machine body,
• the inclination angle determination unit determines the inclination angle based on the inclination angle information detected along the teaching traveling route, and
• the rotation control mechanism rotates the positioning receiver at a timing before commencement of autonomous traveling on the line traveling paths.

An autonomous traveling work machine comprising:

• a traveling machine body;
• a positioning receiver configured to receive a positioning signal from a navigation satellite;
• an autonomous traveling control device configured to perform autonomous traveling along a traveling path based on the positioning signal;
• an inclination detection unit configured to detect inclination of the traveling machine body and output inclination angle information;
• an inclination angle determination unit configured to determine an inclination angle based on the inclination angle information;
• a rotation control mechanism configured to rotate the positioning receiver with one or more degrees of freedom;
• and
• a traveling path setting unit configured to set a traveling path for the traveling machine body in advance,
• wherein the traveling path setting unit generates a plurality of line traveling paths that are parallel with a teaching traveling route obtained by manual operation of the traveling machine body,
• the inclination angle determination unit updates the inclination angle based on the inclination angle information detected along one of the line traveling paths, and
• the rotation control mechanism rotates the positioning receiver at a timing before commencement of autonomous traveling along a subsequent line traveling path.