Abstract:
A control system is disclosed for use with a machine at a worksite. The control system may have an offboard controller. The offboard controller may be configured to receive information regarding a berm at the worksite, determine starting and ending points spaced apart along an edge of the berm based on the information, and determine a maximum orthogonal distance from a virtual line extending between the starting and ending points to the edge of the berm. The offboard controller may be further configured to selectively validate the starting and ending points based on the maximum orthogonal distance, and to designate a center of the virtual line between validated starting and ending points as a dump target.
Abstract:
A system for determining material characteristics of a material of a work surface includes a position sensor and a controller. The controller stores a first estimate of the material characteristics and utilizes a planning system to determine an expected profile. The expected profile is based at least in part upon the first estimate of the material characteristics. The controller determines an actual profile of the work surface, compares the expected profile to the actual profile, and determines a second estimate of the material characteristics based at least in part upon the difference between the expected profile and the actual profile.
Abstract:
A method and system for remote monitoring of an earthmoving machine provide machine video with overlaid graphical indicators via a video display at an operator center. In an embodiment, video data and machine data encompassing machine operational parameters are captured at the machine. The video data and the machine data are transmitted to the operator center and graphical indicators are generated at the operator center, with each graphical indicator corresponding to a separate machine operational parameter. The machine video data is then displayed on a display screen at the operator center with the graphical indicators overlaid on the displayed video in multiple separate region of the display screen.
Abstract:
A control system is disclosed for a mobile excavation machine operating at a worksite. The control system may have a locating device configured to generate a first signal indicative of a position of the mobile excavation machine, and a position sensor configured to generate a second signal indicative of a position of a work tool. The control system may also have an offboard planner configured to receive a first input indicative of a characteristic of an intended work area, a second input indicative of a characteristic of the mobile excavation machine, and a third input indicative of a desired change in the intended work area. The offboard planner may also be configured to generate an excavation plan based on the first, second, and third inputs. The control system may further have a controller configured to autonomously control the mobile excavation machine based on the first and second signals and based on the excavation plan.
Abstract:
Topographical data for a work location is created and information on a new travel route is generated. Next, a work location including the new travel route is constructed on the basis of the created topographical data. Then, the information on the new travel route generated is provided to the vehicle, the vehicle is made to travel along said new travel route in accordance with temporary travel control data, and actual topographical data for the new travel route is acquired. Next, the aforementioned temporary travel control data is corrected on the basis of the acquired actual topographical data for the new travel route. After that, the unmanned vehicle is made to travel in accordance with the corrected travel control data.
Abstract:
A remote control system and a remote control apparatus allow a human operator to remotely control a mobile body easily even if the system uses a low-speed communications link. The remote control system includes a remote control apparatus, in which a CPU selects old information based on both old information and the latest mobile body information from a mobile body, and determines a virtual view point V. The CPU generates a three-dimensional environmental image K and the virtual view point V based on the selected old information, and also generates a mobile body model M, a reference point B and a clipping center point based on the latest mobile body information and data regarding a mobile body model M, in a global coordinate system GC. The CPU calculates an angle of view based on a distance d between the virtual viewpoint V and the reference point B, makes a perspective projection of the three-dimensional environmental image K and the mobile body model M from the virtual view point V toward the clipping center point to obtain a projected image, makes a clip from the projected image based on the angle of view thereby making a composite image, and converts the composite image into a display image of a predetermined size. The resulting display image is displayed on a monitor.
Abstract:
A tether tracking system for a mobile machine is disclosed. The tether tracking system may have a spool located on the mobile machine to selectively dispense and reel in a tether extending from the mobile machine to a stationary source as the mobile machine travels about a worksite. The tether tracking system may also have at least one sensor associated with the spool to generate a first signal indicative of a spool parameter, a locating system associated with the mobile machine to generate a second signal indicative of a location of the mobile machine, and a controller in communication with the at least one sensor and the locating system. The controller may be configured to determine a tether avoidance zone based on the first and second signals.
Abstract:
This invention concerns the control of rotating excavation machinery, for instance to avoid collisions with obstacles. In a first aspect the invention is a control system for autonomous path planning in excavation machinery, comprising: A map generation subsystem to receive data from an array of disparate and complementary sensors to generate a 3-Dimensional digital terrain and obstacle map referenced to a coordinate frame related to the machine's geometry, during normal operation of the machine. An obstacle detection subsystem to find and identify obstacles in the digital terrain and obstacle map, and then to refine the map by identifying exclusion zones that are within reach of the machine during operation. A collision detection subsystem that uses knowledge of the machine's position and movements, as well as the digital terrain and obstacle map, to identify and predict possible collisions with itself or other obstacles, and then uses a forward motion planner to predict collisions in a planned path. And, a path planning subsystem that uses information from the other subsystems to vary planned paths to avoid obstacles and collisions. In other aspects the invention is excavation machinery including the control system; a method for control of excavation machinery; and firmware and software versions of the control system.
Abstract:
A control system is disclosed for use with a mobile loading machine operating at a first location and a plurality of mobile haul machines configured to move material received at the first location to a second location. The control system may have a plurality of control modules, each associated with one of the mobile loading machine and the plurality of mobile haul machines, and a worksite controller. The worksite controller may be configured to make a determination that a position of the mobile loading machine has changed, and to generate a new travel path for the plurality of mobile haul machines based on the determination. The worksite controller may also be configured to selectively communicate the new travel path to each of the plurality of control modules. The new travel path between the first and second locations may be automatically determined in accordance with at least one user-selected goal.
Abstract:
A control system for use at a dump location having a plurality of dump sites is disclosed. The control system may have a control module associated with a mobile machine and a worksite controller. The worksite controller may be configured to receive a signal from the control module indicative of the mobile machine crossing a boundary at a dump location, and assign a travel route for the mobile machine based on the signal. The travel route may include a travel segment on a common entrance row, a first single-use path from the common entrance row to a particular one of the plurality of dump sites, a second single-use path from the particular one of the plurality of dump sites to a common exit row, and a travel segment on the common exit row. The worksite controller may be further configured to communicate the travel route to the control module as the mobile machine moves toward the dump location.