Abstract:
A method for bonding together an existing substrate layer and a pavement layer, such that a strong adhesive bond is formed by using a tack coat, provided by an asphalt emulsion, in between the layers as the bond coat. The tack coat layer is a low-tracking coating which cures quickly such that the pavement layer may be applied to the substrate, hours to days after the emulsion is applied to the substrate. The asphalt emulsion comprises at least a first phase of from about 30% to about 70% of an asphalt composition, about 30% to about 70% water, and about 0.1% to about 3.0% emulsifying agent, stabilizer and/or additives, or 0.1% to about 30% if polymeric or other additves are also included.
Abstract:
A control system (16) for a machine (12) operating at a worksite (10) is disclosed. The control system has a controller (30) configured to recognize a feature of the worksite from a topographic map of the worksite. The controller is further configured to determine at least one characteristic of the recognized feature, and determine a desired excavation entry point into a surface of the worksite based on the at least one characteristic.
Abstract:
In one embodiment of the present invention, an apparatus and method for establishing the perimeter (24) of a work site (20) for a mobile machine (68, 70) capable of operating autonomously or semi-autonomously includes activating a learning mode (54), positioning the mobile machine (68, 70) at a plurality of locations on the perimeter (24), and recording position data at each location from a sensor system (30), such as GPS, that provide signals corresponding to the position of the mobile machine (68, 70). The position data is stored and a data processor (116) associated with a control system (42) generates a display of the perimeter (24) so that an operator may visually verify the size, location, and shape of the work area (20) bounded by the perimeter (24). Means to allow the operator to modify the entered position data is also provided.
Abstract:
The method for installing an energy conversion apparatus (1) in a paving comprises: laying a road bed (3), laying a paving material (6), installing thereon a preformed rigid heat exchanger tubing (2) and exerting a pressure for embedding the heat exchanger tubing (2) in the paving material (6).
Abstract:
At least two crawler tracks (T1-T4) or four wheels or rail bogies are provided for transporting and elevating the frame of a mobile machine having a reference side (R) and a cross slope side (Cs). Two jacking points (C1-C2) are located on the reference side and two jacking points (C3-C4) are located on the cross slope side. The reference side (R) tracks a reference in elevation (W) and adapts a desired reference attitude. An attitude sensor (AR) on the reference side measures the actual attitude of the reference side relative to gravity. Likewise, an attitude sensor (ACS) on the cross slope side measures the actual attitude of the cross slope side relative to gravity. The attitude of the cross slope side is adjusted to match the attitude of the reference side. Finally, a single cross slope sensor (ABC) varies the elevation of the cross slope side relative to the reference side.
Abstract:
An apparatus (40, 50, 60) and method (100, 101, 102, 104, 106, 108, 108a, 109, 110) for directing the operations of multiple geography-altering machines (14) on a common work site (12) relative to one another. Position information from several machines (14) is shared to generate a common, dynamically-updated site database (66) showing the machines' relative positions and site progress in real time. The common site database (66) is used to direct the operation of one machine (14) with respect to another machine or machines (14), for example by generating an operator display (22) of the site (12) showing relative machine position and total machine work on the site (12). The operator can accordingly adjust the machine's operation to avoid interference with other machines (14) or unnecessary overlap of work on the site (12). The information can also be used to coordinate the operations of several machines (14) in complementary fashion. Machine position information can be broadcast from the machines (14) to the site database (66) to create a common, dynamically-updated database (66) which is then shared with one or more of the machines (14). In a particular embodiment each machine (14) is provided with its own dynamically-updated database (66) and operator display (22), and machine position information is shared on a continuous, real-time basis between the machines (14) so that they effectively share a common site database (66).
Abstract:
A ground marking autonomous robot containing a flexible bag containing a marking material therein, the flexible bag provided with an airtight valve outlet sealed to the flexible bag. The use of a ground marking autonomous robot with a flexible bag allows for improvements in the accuracy of the deposition of material, for example in image printing or fertiliser deposition. This allows the optimisation of material deposition, and material use, minimising environmental impact with no compromise to quality of finished product, e.g. a printed logo or a fertilised pitch.
Abstract:
A method for determining situational awareness in a worksite (13) comprises setting at least one environment modelling apparatus (EM) at least one of: on a machine or external from the machine; setting at least one tracking apparatus (TA) at least one of: on the machine or external from the machine; acquiring data by the at least one tracking apparatus (TA) and acquiring data by the at least one environment modelling apparatus. Further the method comprises receiving by at least one position determination unit (PDU) data related to the at least one tracking apparatus (TA) and data related to the at least one environment modelling apparatus (EM) and determining by the at least one position determination unit (PDU), based at least in part on the received data, the location and orientation of the machine in the worksite (13).
Abstract:
Road construction machine (10), especially a paving machine or a milling machine, comprising a levelling system (1), the road construction machine (10) comprising a chassis (17) and a tool (15), the levelling system (1) comprising: - a first height sensor arrangement (3L/R, 40L/R) coupled to a first side of the tool (15) or to a first side (10L/R) of the chassis (17) of the machine (10) and configured to determine a first distance information (DL/DR) as first actual value for a distance to an underground (21) or to an applied layer (22) in reference to a reference point belonging to the first side of the tool (15) or to the first side (10L/R) of the chassis (17); and - a second height sensor arrangement (3L/R, 40L/R) coupled to the second side of the tool (15) or to a second side (1 OL/R) of the chassis (17) and configured to determine a second distance information (DL/ DR) serving as second actual value for a distance to the underground (21) or to the applied layer (22) in reference to the reference point belonging to the second side of the tool (15) or to the second side (10L/R) of the chassis (17); and - a first controller (5L/R, 45L/R) comprising a first controller loop configured to control a height position of the first side of the tool (15) or of the machine chassis (17) based on the first actual value and a first setpoint for the height position of the first side of the tool (15) or of the chassis (17); and - a second controller (5L/R, 45L/R) comprising a second controller loop configured to control a height position of the second side of the tool (15) or of the chassis (17) based on the second actual value and a second setpoint for the height position of the second side of the tool (15) or of the chassis (17); and - an additional sensor (2, 200, 300, 400) coupled to the tool (15) or the chassis (17) and configured to determine an actual reference value for either the first or the second side of the tool (15) or either the first or the second side of the chassis (17), the actual reference value describing a height position of either the first or the second side of the tool (15) or either the first or the second side of the chassis (17) wherein at least one of the first and the second controller (5L/R, 45UZ R) are configured to adapt the setpoint based on the actual reference value of the additional sensor (2, 200, 300, 400), whereby a setpoint adaption takes place only either on the first side or the second side of the tool (15) or of the chassis (17).
Abstract:
Ein Sensorsystem für eine Baumaschine, insbesondere ein Straßenfertiger umfasst einen Laserscanner und eine Auswerteeinheit. Der Laserscanner ist auf der Baumaschine oder dem Straßenfertiger selbst anordenbar und ausgebildet, um einen vorgegebenen Winkelbereich nach Objekten abzusuchen und um entsprechend der Abstandswerte, die den Abstand zu den einen oder mehreren Objekten beschreiben, zusammen mit entsprechenden Intensitätswerten, die eine Intensität einer sich an den einen oder mehreren Objekten einstellenden Reflexion beschreiben, über Winkel des vorgegebenen Winkelbereichs zu ermitteln. Die Auswerteeinheit ist ausgebildet, um ausgehend von einem bekannten Muster, umfassend die Abstandswerte und die Intensitätswerte über die Winkel, ein Objekt als Referenz zusammen mit zugehörigen Winkeln zu erkennen. Ferner ist die Auswerteeinheit dazu ausgebildet, einen Abstand zu der Referenz und/oder einen Winkel gegenüber der Referenz zu bestimmen.