In certain embodiments, a system for applying disinfectant to the teats of a dairy livestock includes a carriage mounted on a track, the carriage operable to translate laterally along the track. The system further includes a robotic arm including a first member pivotally attached to the carriage such that the first member may rotate about a point of attachment to the carriage, a second member pivotally attached to the first member such that the second member may rotate about a point of attachment to the first member, and a spray tool member pivotally attached to the second member such that the spray tool member may rotate about a point of attachment to the second member. The robotic arm further includes a spray tool attached to the spray tool member. The system further includes a controller operable to cause at least a portion of the robotic arm to extend between the hind legs of a dairy livestock such that the spray tool is located at a spray position from which the spray tool may discharge an amount of disinfectant to the teats of the dairy livestock.

A method for operating a robotic arm, comprises determining a speed of rotation of a rotary milking platform, the rotary milking platform having a stall for a dairy livestock. The method continues by moving a carriage along a track positioned adjacent to the rotary milking platform at a rate that is based at least in part upon the determined speed of rotation of the rotary milking platform, wherein the carriage moves independently of the rotary milking platform and in a direction corresponding to a direction of rotation of the rotary milking platform. The method continues by extending a robotic arm that is coupled to the carriage between the legs of the dairy livestock, wherein the robotic arm remains extended between the legs of the dairy livestock for a period of time as the stall rotates adjacent to the robotic arm. The method concludes by retracting the robotic arm from between the legs of the dairy livestock as the stall rotates adjacent to the robotic arm.

A spray tool coupled to a robotic arm that extends between the legs of dairy livestock, comprises a linear member and a plurality of spray nozzles. The linear member rotates about an axis that is perpendicular to the robotic arm, and has a perimeter that lies within an outer perimeter of the robotic arm when the robotic arm extends between the legs of a dairy livestock. The plurality of spray nozzles are coupled to the linear member.

A perception mast for mobile robot is provided. The mobile robot comprises a mobile base, a turntable operatively coupled to the mobile base, the turntable configured to rotate about a first axis, an arm operatively coupled to a first location on the turntable, and the perception mast operatively coupled to a second location on the turntable, the perception mast configured to rotate about a second axis parallel to the first axis, wherein the perception mast includes disposed thereon, a first perception module and a second perception module arranged between the first imaging module and the turntable.

A robot includes a mobile base, a turntable rotatably coupled to the mobile base, a robotic arm operatively coupled to the turntable, and at least one directional sensor. An orientation of the at least one directional sensor is independently controllable. A method of controlling a robotic arm includes controlling a state of a mobile base and controlling a state of a robotic arm coupled to the mobile base, based, at least in part, on the state of the mobile base.

A method for operating a robotic arm comprises determining a speed of rotation of a rotary milking platform, the rotary milking platform having a stall for a dairy livestock. The method further includes moving a carriage along a track positioned adjacent to the rotary milking platform at a rate that is based at least in part upon the determined speed of rotation of the rotary milking platform. The method further includes extending a robotic arm that is coupled to the carriage between the legs of the dairy livestock.

A robotic arm according to various implementations includes: a tool driver configured to hold a surgical tool; a first section comprising a first end coupled to a base, a second end distal from first end; a first link that includes a motor configured to rotate at least a portion of the first section around a pitch axis; a second link coupled to the first link, the second link including a motor configured to rotate at least a portion of the first section around a roll axis; and a second section comprising: a first end coupled to the second end of the first section, a second end distal from the first end, a first link that includes a motor configured to rotate at least a portion of the second section around a roll axis, a second link coupled to the first link.

Robotic arms and surgical robotic systems incorporating such arms are described. A robotic arm includes a roll joint connected to a prismatic link by a pitch joint and a tool drive connected to the prismatic link by another pitch joint. The prismatic link includes several prismatic sublinks that are connected by a prismatic joint. A surgical tool supported by the tool drive can insert into a patient along an insertion axis through a remote center of motion of the robotic arm. Movement of the robotic arm can be controlled to telescopically move the prismatic sublinks relative to each other by the prismatic joint while maintaining the remote center of motion fixed. Other embodiments are also described and claimed.

A spray tool coupled to a robotic arm includes a linear member, a first spray nozzle and a second spray nozzle. The linear member rotates about an axis that is perpendicular to the robotic arm. The linear member has a perimeter that lies within an outer perimeter of the robotic arm when the robotic arm extends between the legs of a dairy livestock. The first spray nozzle is coupled to the linear member proximate a first end of the linear member. The second spray nozzle is coupled to the linear member proximate a second end of the linear member.

A system includes a camera, a controller and a robotic arm. The camera generates an image of an udder of a dairy livestock. The controller determines a position of the udder of the dairy livestock based at least in part upon the image. The controller further determines a spray position based at least in part upon the determined position of the udder of the dairy livestock. Determining the spray position includes processing the accessed image to determine a tangent at the rear of the udder and a tangent at the bottom of the udder. The spray position is a position relative to the intersection of the two tangents. The robotic arm is communicatively coupled to the controller and positions a spray tool at the spray position.