A control device includes: a first generator generating a first command position of a control object on a plane in each control cycle based on a target trajectory; a first control part generating a first operation amount by model predictive control using a first dynamic characteristic model and the first command position; a second generator generating a second command position of the control object on an orthogonal axis in each control cycle; and a second control part generating a second operation amount by model predictive control using a second dynamic characteristic model and the second command position. Based on shape data indicating a surface shape of an object and the first command position, the second generator generates the second command position so that a distance between the control object and a surface of the object is constant.

A measurement sensor is integrated with a control object so that a position separated from a processing object by the control object along a target trajectory is a measurement point. A control device includes: a first generator that generates a first command position of the control object on a plane; a first control part that generates a first operation amount using a model predictive control; a second generator that generates a second command position of the control object on an orthogonal axis that is orthogonal to the plane; and a second control part that generates a second operation amount using the model predictive control. The second generator generates the second command position so that the distance between the control object and the surface of an object is constant, based on the measurement result of the measurement sensor and the first command position.

A robotic system for inspecting a part comprises a robot comprising an articulating arm and an end effector, coupled to the articulating arm. The robotic system further includes three or more proximity sensors on the end effector and spaced apart from each other. Each of the proximity sensors is configured to detect a measured distance from the proximity sensor to a surface, such that the end effector is displaced from the surface. The robotic system includes a controller configured to receive measured distances from the proximity sensors. The controller is also configured to orient the end effector to a predetermined orientation based on the measured distances. The controller is further configured to calculate an average of the measured distances. Additionally, the controller is configured to move the end effector to a predetermined operating distance from the surface based on the average of the measured distance.

A control device is provided with: a first generation unit for generating a first instruction position on a plane of a control subject in each control period on the basis of a target trajectory; a first control unit for generating a first operation amount by model prediction control using a first dynamic characteristic model and the first instruction position; a second generation unit for generating a second instruction position on an orthogonal axis of the control subject in each control period; and a second control unit for generating a second operation amount by model prediction control using a second dynamic characteristic model and the second instruction position. On the basis of shape data indicating a surface shape of an object and the first instruction position, the second generation unit generates the second instruction position in such a manner that a distance between the control subject and a surface of the object is constant. As a result, the control subject follows the shape of the surface of the object with high accuracy.

A measurement sensor is integrated with a control object so that a position separated from a processing object by the control object along a target trajectory is a measurement point. A control device includes: a first generator that generates a first command position of the control object on a plane; a first control part that generates a first operation amount using a model predictive control; a second generator that generates a second command position of the control object on an orthogonal axis that is orthogonal to the plane; and a second control part that generates a second operation amount using the model predictive control. The second generator generates the second command position so that the distance between the control object and the surface of an object is constant, based on the measurement result of the measurement sensor and the first command position.

A liquid discharge apparatus includes a head, a position changer, and circuitry. The head has a nozzle. The head discharges a liquid from the nozzle to apply the liquid onto a surface of an object. The head has a prescribed discharge condition. The position changer changes a relative position between the object and the head. The circuitry determines a linear trajectory along which the position changer moves the head based on the prescribed discharge condition, outputs a first command including multiple moving positions along the linear trajectory to the position changer to cause the position changer to move the head along the linear trajectory, and outputs a second command including multiple discharge positions to the head to cause the head to discharge the liquid at the multiple discharge positions.

A PLC system includes a displacement sensor, drives, and a PLC. In the PLC system, the trace control unit calculates a target position at which a distance between the displacement sensor and the object is constant based on measurement information (1D information) from which measurement noise (noise information) has been removed by the filter and positional information from the drives.