Abstract:
A system for controlling a paving system includes a plurality of supply machines, a paving machine, and a plant. A first controller determines the position of each supply machine. A second controller determines the rate at which paving material is being applied to a work surface and transmits the rate at which the paving material is being applied. A temperature sensor is associated with one of the plurality of supply machines and the paving machine for determining a temperature of paving material at the paving machine. The plant is configured to produce a batch of paving material and a third controller determines a batch temperature, and generates instructions indicative of a desired route for each supply machine between the plant and the paving machine based upon the position of each supply machine, traffic information data, the batch temperature, and the temperature of paving material at the paving machine.
Abstract:
The present invention relates to a correction unit (13) for correcting the position of a side plate (2, 2') of a screed (4) of a road paving machine (1) for constructing a road pavement relative to a line (12) on an underlying surface on which the road paving ma- chine (1) is adapted to move, the correction unit (13) comprising a sensor device, where the sensor device is adapted to sense at least part of said underlying surface comprising the line (12) and identify a displacement of the side plate (2, 2') of the screed (4) of the road paving machine (1) relative to the line (12) on the underlying sur- face and provide a sensing signal for controlling the position of the side plate (2, 2'). The present invention further relates to a screed (4) and a road paving machine (1) comprising the correction unit (13).
Abstract:
PROBLEM: Efficiently generating digital terrain model (DTM) having high elevation surface accuracy and high point density, and suitable for controlling pavement milling machines during road repairs. SOLUTION: Combination of motorized levelling and Stop-Go mobile laser scanning system, including train of three vehicles, which are at standstill during measurements, and which move in unison in between measurements. Middle vehicle carries laser scanner, elevation sight, and GNSS receiver. Front and rear vehicle each carry levelling rod; front vehicle also carries GNSS receiver. During measurement cycle, laser scanner generates point cloud, while GNSS positions of middle and front vehicles and elevations at the resp. positions of front and rear vehicles are determined. After measurement cycle, vehicle train moves until rear vehicle halts at previous GNSS position of front vehicle, etc. When all measurement cycles are completed, collected data is integrated and transformed into a DTM.
Abstract:
A screeding system for use with a screeding machine during screeding of an uncured concrete surface includes a control and a plurality of sensors. The sensors are disposed at the screeding machine, which has a screed head assembly that is movable over uncured concrete to screed the concrete surface. The sensors include elevation sensors that sense an elevation of the screed head assembly relative to a reference plane established at the concrete area. The control processes data captured by said plurality of sensors while the screeding machine is screeding the uncured concrete surface. Responsive to the data processing of captured data, the control estimates a flatness or levelness or quality of the surface of the concrete being screeded. While the screeding machine is screeding the uncured concrete surface, the control generates an output indicative of the estimated flatness or levelness or quality of the surface.
Abstract:
A paving system (10) includes a machine (11) having a frame (12) with a plurality of ground-engaging elements (16) coupled with the frame (12), and a height adjustable screed (22) coupled with the frame (12). The paving system (10) may also include a paving control system (40) having a receiver (42) configured to receive screed control data indicative of a position of the height adjustable screed (22) relative to a reference position. The paving control system (40) may further include a computer readable memory (48) storing a control algorithm, which may include a smoothness estimating algorithm and a screed adjusting algorithm. An electronic control unit (42) is coupled with the computer readable memory (48) and is configured via the control algorithm to determine a smoothness value for a region of a mat of material which corresponds with an irregular pattern of screed position, in response to screed control data received via the receiver (42).
Abstract:
The invention relates to a soil compacting device comprising a motion detection device (6) for detecting an actual value for the travelling motion of the soil compacting device. Inside a travel control device (7), the actual value is compared with a set value that is predetermined by the operator. When a difference between these two values is determined, the travel control device (7) corrects the travelling motion by controlling a steering device (2) or a drive (2) of the soil compacting device. In another embodiment of the invention, a number of vibration plates (21, 22, 23) are connected by means of connecting elements (24) to form a soil compacting system, which is also provided with a travel control device. The travel control device controls the individual drives in order to steer the entire soil compacting system.
Abstract:
A method (144) of operating a machine (100) having at least one tool is provided. The method (144) may store one or more job profiles (148) or machine (100) configurations and an auto-zero or default profile in a memory (142) associated with the machine (100), where each of the job profiles (148) and the auto-zero profile (150) may include one or more control settings for operating one or more of the machine (100) and the tool; recall a selected one of the job profiles (148) and the auto-zero profile (150) in response to user input received at a user interface (126) associated with the machine (100); engage or machine (100) reset operation of one or more of the machine (100) and the tool according to the control settings associated with the selected one of the job profiles (148) and the auto-zero profile (150); and disengage at least part of the operation based on positioning information provided by one or more feedback devices (138).
Abstract:
A milling machine (100) is provided including: a frame (102); a plurality of ground engaging units (114); a plurality of vertically adjustable legs (118), the plurality of vertically adjustable legs (118) comprising a front leg (118) and a rear leg (118); a rotatable mill (116) configured to mill (130) a surface (120); a user interface (138) configured to receive a milling grade depth and a cut-transition factor; a speed sensor (137) configured to provide a ground speed of the milling machine (100); a vertical position sensor; and a controller (132) coupled to the speed sensor (137), the vertical position sensor, and the user interface (138), the controller (132) configured to lower a height of the rotatable mill (116) to the milling grade depth by incrementally adjusting a length of at least one of the plurality of vertically adjustable legs (118) according to the cut-transition factor, the speed sensor (137), and the vertical position sensor.
Abstract:
Eine Fernsteuerung (1) für ein selbstfahrendes Arbeitsgerät (3), beispielsweise für einen Stampfer, eine Vibrationsplatte oder eine Walze zur Bodenverdichtung, weist eine erste Sendevorrichtung (4) zum Senden eines elektromagnetischen Steuersignals in einer Wirkrichtung (WR) auf. Weiterhin ist eine zweite Sendevorrichtung (4, 6) zum Senden eines elektromagnetischen Sicherheitssignals in einem Sicherheitsbereich (S1, S2) vorgesehen. Ein Betriebszustand des Arbeitsgeräts (3) ist in Abhängigkeit vom Sicherheitssignal vorgebbar. Beispielsweise können Betriebsaktivitäten des Arbeitsgeräts (3) bei Empfangbarkeit des Sicherheitssignals unterbunden werden. Der Sicherheitsbereich (S1, S2) umfasst einen der Wirkrichtung (WR) entgegengesetzten Rückbereich (S2). Hierdurch kann ein Schutz eines Bedieners (2) der Fernbedienung (1) im beispielsweise hinter dem Bediener (2) gelegenen Rückbereich (S2) erreicht werden.
Abstract:
A spreader (100) has material storage means (1) for storing a spreadable material (2), a plurality of spinners (5, 6) adapted to receive the material from the storage means and to spread the material (2) on the ground, and a Global Positioning System (GPS) receiver (8) for sensing the position of the spreader (100) and providing an output signal indicative of a position of the spreader to a control means (7). The control means (7) calculates a required pattern and density of material (2) to be spread by the spinners (5, 6) based on a comparison of the actual position of the spreader (A) to a preferred position of the spreader (I), and controls the spinners (5, 6) in order to obtain the required pattern and density of spread material (2). A method of controlling the pattern and density of material spread by a spreader is also disclosed.