Abstract: A mobility platform is configured to execute one or more tasks in a worksite including a first passive landmark and a second passive landmark. The mobility platform may include a chassis, a drive system supporting the chassis, a first laser rangefinder disposed on the chassis at a first location, a second laser rangefinder disposed on the chassis at a second location, and at least one processor. The at least one processor may be configured to determine a position and orientation of the chassis based on a first distance measured by the first laser rangefinder between the first location and a first known landmark position, a second distance measured by the second laser rangefinder between the second location and a second known landmark position, and yaw angle information from at least one of the first and second laser rangefinders.

Abstract: Described herein are embodiments of a positioning device for positioning a target in an environment for use by a system in localization in the environment. The positioning device comprises a base, a rod extending along a longitudinal axis of the base, an alignment spike attached to a first end of the rod, and at least three legs connected to the base. The alignment spike comprises a tip for contacting a point on a surface that the positioning device is placed upon. Each of the legs is configured to extend radially from the base and retract radially towards the base.

Abstract: A mobility platform is configured to execute one or more tasks in a worksite including a first passive landmark and a second passive landmark. The mobility platform may include a chassis, a drive system supporting the chassis, a first laser rangefinder disposed on the chassis at a first location, a second laser rangefinder disposed on the chassis at a second location, and at least one processor. The at least one processor may be configured to determine a position and orientation of the chassis based on a first distance measured by the first laser rangefinder between the first location and a first known landmark position, a second distance measured by the second laser rangefinder between the second location and a second known landmark position, and yaw angle information from at least one of the first and second laser rangefinders.

Abstract: A mobility platform is configured to execute one or more tasks in a worksite including a passive landmark. A mobility platform may include a first laser rangefinder and at least one processor configured to sweep the first passive landmark with the first laser rangefinder to collect a first plurality of distance measurements for a first plurality of yaw angles, fit a first shape to the first plurality of distance measurements based on a predetermined shape of the first passive landmark, and determine a position of a geometric center of the first passive landmark relative to the first location of the first laser rangefinder based on the fit first shape.

Abstract: An autonomous tool including a multi-sensor package enabling identification of the position of the tool in a construction site so that the tool may navigate to locations where tasks are performed. The tool may include at least one sensor from the group of a drive system encoder, stereo camera, inertial measurement unit, optical flow sensor, and LiDAR. The tool may include a holonomic drive allowing at least one tool of the mobility platform to reach the extremities of a construction site. The platform may be used as part of a system that receives design information relating to the construction site and tasks to be performed by the tool and then generates commands that control the tool to navigate along a path generated to include landmarks within range of and therefore detectable by the sensors for a large percentage of the path.

Abstract: An autonomous tool including a multi-sensor package enabling identification of the position of the tool in a construction site so that the tool may navigate to locations where tasks are performed. The tool may include at least one sensor from the group of a drive system encoder, stereo camera, inertial measurement unit, optical flow sensor, and LiDAR. The tool may include a holonomic drive allowing at least one tool of the mobility platform to reach the extremities of a construction site. The platform may be used as part of a system that receives design information relating to the construction site and tasks to be performed by the tool and then generates commands that control the tool to navigate along a path generated to include landmarks within range of and therefore detectable by the sensors for a large percentage of the path.

Abstract: A mobility platform is configured to execute one or more tasks in a worksite including a first passive landmark and a second passive landmark. The mobility platform may include a chassis, a drive system supporting the chassis, a first laser rangefinder disposed on the chassis at a first location, a second laser rangefinder disposed on the chassis at a second location, and at least one processor. The at least one processor may be configured to determine a position and orientation of the chassis based on a first distance measured by the first laser rangefinder between the first location and a first known landmark position, a second distance measured by the second laser rangefinder between the second location and a second known landmark position, and yaw angle information from at least one of the first and second laser rangefinders.

Abstract: An autonomous tool including a multi-sensor package enabling identification of the position of the tool in a construction site so that the tool may navigate to locations where tasks are performed. The tool may include at least one sensor from the group of a drive system encoder, stereo camera, inertial measurement unit, optical flow sensor, and LiDAR. The tool may include a holonomic drive allowing at least one tool of the mobility platform to reach the extremities of a construction site. The platform may be used as part of a system that receives design information relating to the construction site and tasks to be performed by the tool and then generates commands that control the tool to navigate along a path generated to include landmarks within range of and therefore detectable by the sensors for a large percentage of the path.