Abstract: A control device includes a direction identifying data generator that generates direction identifying data including at least a portion of acquired point group data indicating a position of a region including the ridge in front of an agricultural vehicle in a traveling direction, a direction identification part that identifies a direction of the ridge on the basis of the direction identifying data, and a travel control part that controls the agricultural vehicle such that the agricultural vehicle travels in the direction of the ridge identified by the direction identification part.

Abstract: An electrostatic coating device includes a rotary atomizing head, a first supply pipe for supplying a main agent, a second supply pipe for supplying a curing agent, a first mixing part for merging the first supply pipe and the and second supply pipes and causing the main and curing agents to mix, and a liquid mixture supply pipe for supplying a mixed liquid agent to the rotary atomizing head. The first mixing part is provided with: an outer pipe part connected to the second supply pipe and formed so as to surround the external periphery of a distal-end part of the first supply pipe; and a merging part for merging the main and curing agents so that the curing agent surrounds the external periphery of the main agent supplied from the first supply pipe, the merging part being formed in the vicinity of the distal-end part of the first supply pipe.