Abstract:
A method and a control system for positioning a mine vehicle. Measurement of a distance travelled by the mine vehicle (1) is based on monitoring rotation of a wheel (3). In the invention, an error caused in the distance measurement by wear of the wheel (3) is compensated for automatically when the distance value obtained from monitoring is corrected by a correction factor. The value of the correction factor is updated at predetermined intervals during use.
Abstract:
A method and a system for monitoring the location of a mining vehicle in a mine. The first mine section (18) is provided with a wireless network (10) for data transmission between the mining vehicle (1, 1a, 1b) and the mine control system (11). In addition, the network is used for positioning. In the second mine section (21), the location is determined by means of measuring devices provided in the mining vehicle.
Abstract:
A method and an apparatus for determining the position of a mining machine as its wheels skid with respect to the underlying surface. In the method, at least one detector detecting the operation of transmission detects skidding of at least one wheel with respect to the underlying surface, whereupon determination of the position by means of the rotation of the wheels and the direction of travel is interrupted. The apparatus includes at least one detector for detecting the operation of the transmission, the detector detecting the skidding of at least one wheel with respect to the underlying surface.
Abstract:
This travel control apparatus for vehicles is provided with a fellow vehicle judgement device adapted to judge whether a fellow vehicle coming close to a subject vehicle traveling on a track is present or absent, and a device for shifting a traveling course of the subject vehicle when a judgement that a fellow vehicle coming close to the subject vehicle is present is given by the fellow vehicle judgement device, so as to have the subject vehicle traveling along a solo traveling course set on the track travel along a course set close to a shoulder of the track.
Abstract:
An unmanned vehicle running system, capable of reducing a stop time of a vehicle by immediately judging whether or not an obstacle blocks the passage when detecting the obstacle. For this purpose, the unmanned vehicle running system has a plurality of vehicles (1) running without a driver in a predetermined course (3) while detecting the current position and a central monitor station (2) for monitoring operations of the plurality of vehicles, wherein each of said vehicles is provided with a phototaking device (24) for taking a photo of the course, with a vehicle communication unit (23) for transmitting the taken image to the central monitor station, and with an obstacle detecting unit (5) for detecting an obstacle (4) which blocks the passage, wherein the central monitor station is provided with a central communication unit (8) for receiving the image and with a monitor (9) for displaying the image, and wherein the phototaking device takes a photo when the obstacle detecting unit detects an obstacle.
Abstract:
A mining machine having a position sensing and control apparatus is claimed. The mining machine has a vehicle body having forward and rearward ends and movable along a mine floor. A cutter head is mounted on the forward end of the mining machine for upward and downward movement relative to the vehicle body. A conveyor mounted on the vehicle body conveys material cut by the cutter head. The position sensing and control apparatus has at least one light source and at least one imaging device mounted on the machine. The position sensing and control apparatus captures images of natural features of an interior surface of a mine, digitizes the images and determines the distance between the imaging device and the natural feature to determine positional change of the machine.
Abstract:
A system and method for managing access to a resource by at least one mobile machine including a queue manager adapted to generate a queue position request signal as a mobile machine approaches the resource and determine if access to the resource is unsuccessful. The queue manager also generates a access status signal after access the resource. The system and method also includes a resource manager adapted to control access to the resource by the mobile machine.
Abstract:
A system for automatically steering a vehicle through an irregular structure. A flexible lighting tube, in proximity to the back of the structure, communicates with at least one canted video camera. A processor takes the output of the camera, determines the position of the vehicle, and provides guidance to the vehicle's steering mechanism.
Abstract:
A system for controlling autonomous operation of a vehicle in response to speed and steering angle request signals from a navigator allows manual operation of the vehicle. The system includes a machine control module, an engine control module, and a transmission control module. An auto/manual select signal indicates to the machine control module whether operation should be in a fully autonomous mode or a manual mode. In the autonomous mode, a navigator produces a speed request signal and a steering angle request signal for the vehicle. The machine control module receives the speed and steering angle request signals from the navigator. From these inputs, the machine control module produces an engine RPM (revolutions per minute) control signal for the engine control module, a transmission control signal for the transmission control module, a brake control signal, and a steering angle control signal. In the manual mode, the machine control module will not interfere with normal, manual (i.e., manned) control of all vehicle systems.
Abstract:
A method for positioning a mobile object in an underground tunnel includes the steps of determining horizontal progression of a mobile object in an underground tunnel from a preceding position estimate or an initial position of the mobile object; determining horizontal position of the mobile object on the basis of a floor model of the tunnel and the estimated horizontal progression of the mobile object; and generating a three-dimensional position indicator on the basis of the horizontal position of the mobile object and a three-dimensional model of the tunnel.