Floor compressor

Abstract

A soil compactor comprises a head-up display (54) associated with at least one subsoil observation window (36), the head-up display (54) being configured to display processing status information representing the processing status of the area (26) of the subsoil (24) lying in front of the soil compactor (10) in the direction of movement (B), wherein the processing status information comprises: - a perspective projection of passes (58, 58') already made or still to be made by the soil compactor (10) in the area (26) of the subsoil (24) lying in front of the soil compactor (10) in the direction of movement (B), and / or - a perspective projection of the area (26) lying in front of the soil compactor (10) in the direction of movement (B). of the subsoil to be compacted (24) with areas (62,62') different states of the subsoil to be compacted (24) differentiating representation.,

Description

[0001] The present invention relates to a soil compactor comprising a compactor assembly movable over a substrate to be compacted, for example asphalt material, wherein at least one compactor roller rotatable about a roller rotation axis and an operator's station with at least one operator's workstation for one operator are provided on the compactor assembly.

[0002] Such a soil compactor is known from DE 10 2016 224 348 A1. As the soil compactor moves over the subsoil to be compacted, its passes over the subsoil are recorded based on the continuously monitored position of the soil compactor and displayed on display devices, such as a laptop, tablet PC, smartwatch, smart glasses or a head-up display, or projected into the field of vision of an operator operating the soil compactor.

[0003] The object of the present invention is to provide a soil compactor in which the provision and display of information representing the processing state of a subsoil to be compacted is carried out in such a way that an operator is enabled to carry out a compaction process more easily and with greater precision.

[0004] According to the invention, this problem is solved by a soil compactor comprising a compactor assembly movable over a subsoil to be compacted, wherein at least one compactor roller rotatable about a roller rotation axis and an operator's station with at least one operator's workstation for one operator are provided on the compactor assembly, wherein at least one subsoil observation window is provided on the operator's station in association with the at least one operator's workstation, wherein a field of view for observing an area of ​​the subsoil to be compacted lying in front of the soil compactor in a direction of movement is open through the at least one subsoil observation window, wherein a head-up display is provided in association with at least one subsoil observation window.wherein the head-up display is designed to display processing status information representing the processing status of the area of ​​the subsoil to be compacted that lies in front of the soil compactor in the direction of movement of the soil compactor.

[0005] The processing status information includes: a perspective projection of passes already made or yet to be made by the soil compactor in the area of ​​the subsoil to be compacted in the direction of movement in front of the soil compactor, or / and a perspective projection of the area of ​​the subsoil to be compacted in the direction of movement in front of the soil compactor, with areas of different conditions of the subsoil to be compacted being represented differently.

[0006] In the soil compactor constructed according to the invention, the processing status information is generated or provided to an operator via the head-up display in such a way that, when viewing the area of ​​the subsoil to be compacted in front of the soil compactor in the direction of movement, the overpasses shown in the head-up display appear to the operator, due to the perspective projection, as if they were located on the area of ​​the subsoil to be compacted visible through the subsoil observation window in front of the soil compactor. This enables the operator to control the soil compactor precisely so that, based on the representation fictitiously projected onto the area of ​​the subsoil to be compacted in front of the soil compactor, the areas to be compacted are precisely targeted.can be processed, for example, those that require further or, if necessary, initial compaction according to a compaction plan.

[0007] The processing status information can also include subsurface information representing the condition of the subsoil to be compacted. This subsurface information can, for example, be displayed in a peripheral area of ​​the head-up display.

[0008] In order to differentiate between different passes already carried out, the passes can be characterized in the representation of the passes already carried out with regard to their temporal sequence and / or a direction of movement of the soil compactor during a respective pass and / or a number of passes representing pass tracks carried out in respective passes.

[0009] In the representation of areas of different conditions of the subsoil to be compacted, areas of different degrees of compaction and / or areas of different subsoil temperatures can be differentiated, for example by different colors.

[0010] The subsurface information displayed to the operator on the head-up display can include, for example, information about the degree of compaction and / or the subsurface temperature. The degree of compaction and / or the subsurface temperature can each be related to the area of ​​the subsurface being compacted that the soil compactor is currently driving over.

[0011] In order to create an optical link between the perspective display on the head-up display and the subsoil to be compacted, a device for providing position information representing the position of the soil compactor on the subsoil to be compacted can be provided on the soil compactor.

[0012] The soil compactor may also be equipped with a device for providing temperature information representing the temperature of the subsoil to be compacted, so that in the representation of areas of different conditions of the subsoil to be compacted, the areas of different conditions can be represented on the basis of the position information and on the basis of the temperature information.

[0013] Furthermore, the soil compactor can be equipped with a device for providing compaction state information representing the compaction state of the subsoil to be compacted. In this way, it becomes possible to represent areas of different conditions of the subsoil to be compacted based on position information and compaction state information.

[0014] The head-up display can be designed to display environmental condition information representing an environmental state, so that the operator is also enabled to carry out or continue the compaction process taking such environmental condition information into account.

[0015] For example, the environmental condition information can include ambient temperature information and / or humidity information and / or wind speed information and / or precipitation amount information.

[0016] In order to enable the operator to have the most comprehensive possible fictitious projection of the processing status information onto the area of ​​the subsoil to be compacted in front of the soil compactor, it is advantageous that at least half, preferably at least 80% of the subsoil observation window is covered by the head-up display.

[0017] The present invention is described in detail below with reference to the accompanying figures. These show: Fig. 1 a side view of a soil compactor; Fig. 2 a view of an operator from an operator's station of the soil compactor. Fig. 1 out through an underground observation window in direction II Fig. 1 Illustrative representation; Fig. 3 a representation corresponding to the Fig. of the subsurface observation window with a display generated by means of a head-up display.

[0018] In Fig. 1 Figure 10 shows a soil compactor in side view. The soil compactor 10 comprises a compactor assembly, generally designated 12, with a rear carriage 14 and a front carriage 16 pivotally connected to the rear carriage 14 for steering the soil compactor 10. Drive wheels 18, driven by a drive unit, and an operator's platform 20 are provided on the rear carriage 14. A [missing information - likely a specific component or feature] is mounted on the front carriage 16, extending [missing information - likely a specific component or feature] relative to the plane of representation. Fig. 1 A rotatable compaction roller 22 is provided with an orthogonal roller rotation axis. The soil compactor 10 moves over a subgrade 24 to be compacted in a direction of movement B, so that a region 26 of the subgrade 24 to be compacted, located in the direction of movement B in front of the soil compactor 10, is compacted by means of the compaction roller 22. For example, the subgrade to be compacted can be composed of asphalt material.

[0019] The operator station 20 provides an operator workstation 28 for an operator 30. The operator 30 can sit on a seat 42 in the operator station 28 and operate the soil compactor 10 or control it during compaction processes by manipulating various operating elements 34.

[0020] At the operator station 20, a subsoil observation window 36, also generally referred to as a windscreen, is provided in the direction of movement B in front of the operator workstation 28. Through the subsoil observation window 36, the operator 30 has a field of vision 38 in which the operator 30 can see the area 26 of the subsoil 24 to be compacted located in the direction of movement B in front of the soil compactor 10. It should be emphasized that windows can also be provided on the sides of the operator station 30 or facing backwards, through which the operator can also see areas of the subsoil 24 to be compacted located next to or behind the soil compactor 10.

[0021] The soil compactor 10 is further equipped with a device 40, for example a GPS system, for providing position information representing the position of the soil compactor 10 on the subsoil 24 to be compacted. The soil compactor 10 is also equipped with a device 42 for providing temperature information representing the temperature of the subsoil 24 to be compacted. The device 42 can, for example, include one or more temperature sensors 44, 46, such as infrared sensors, on the rear carriage 14 and the front carriage 16 to provide temperature information regarding the area of ​​the subsoil to be compacted currently being traversed by the soil compactor 10. Since the position information is also provided simultaneously by means of the device 40, a link can be provided to each positioning of the soil compactor 10 with the temperature information generated at that location.

[0022] The soil compactor 10 comprises, in association with the compactor roller 22, a vibration excitation device 48, shown in principle. This device can, for example, be designed to generate a vibration movement of the compactor roller 22 and may include one or more unbalanced masses that can be driven to rotate, for example, around the roller's axis of rotation.

[0023] To provide vibration information representing the movement of the soil compactor 10 or the compaction roller 22 during such vibratory compaction of the subsoil 24, acceleration sensors 50, 52 can be provided in conjunction with the compaction roller 22. These sensors can detect the acceleration of the compaction roller 22 in the horizontal and vertical directions. Taking into account the detected accelerations of the compaction roller 22 and the speed of movement of the soil compactor 10 in the direction of movement B, which can be derived, for example, from the position information, it is possible to provide information about the compaction state of the subsoil at the position currently being traversed by the soil compactor 10 or the compaction roller 22 and to link this information with the position information.

[0024] In association with the subsurface observation window 36, there is a Fig. 3 A head-up display 54 is provided, illustrating the generated representation. This can, for example, generate a representation on a film-like coating on the subsurface observation window 36 by means of a projector provided at a control panel 55 in the operator station 20, through which the operator 30 can see the area 26 of the subsurface 24 to be compacted lying in the direction of movement B in front of the compactor 10.

[0025] The head-up display 54 is designed to display processing status information, generally designated 56, in the subsurface observation window 36. This information contains various data elements in perspective projection. This creates the impression for the operator 30 that the processing status information displayed in the subsurface observation window 36 is actually projected onto the area 26 of the subsurface 24 to be compacted, located in front of the soil compactor 10. The projection can, for example, be implemented in central perspective, with the spatial area in which the operator's head 30 will be positioned serving as the center of the perspective view.In order to be able to adapt to different sized operators 30, for example, the projection can be moved or / and its size varied by means of adjustment devices provided on the control panel 55 with respect to the background observation window 36.

[0026] For example, the processing status information can include a perspective projection of passes 58 already carried out by the soil compactor 10 in the past. Since the position of the soil compactor 10 is known at all times during such a pass, it is possible to record the course of such passes 58 and display them in a perspective, i.e., spatial, projection on the subsurface observation window 36. Adjacent passes can, for example, be represented by different colors so that they are distinguishable from one another for the operator 30. In the central area, for example, a pass 58' currently being carried out or about to be carried out can be shown.It is also possible to represent crossings that have not yet been carried out but are specified according to a compaction plan, and to distinguish these from crossings that have already been carried out, for example by means of appropriate colored or other markings.

[0027] In relation to the various passes 58 shown in perspective projection, the processing status information 56 can also represent information differentiating the state of the subsoil to be compacted. Since the device 60, comprising the acceleration sensors 50, 52, can provide compaction status information representing the compaction state of the subsoil 24 for each area of ​​the subsoil 24 already traversed by the soil compactor 10, the various passes can also contain the compaction status information representing the compaction state, for example, by means of color coding or other coding. Local areas 62, 62' in which a compaction state differing from the surroundings exists can also be identified here.

[0028] The different states of the subsoil to be compacted, represented in 24 different ways, can also be used, for example, to identify areas of different temperatures. Here, the temperature recorded when driving over a respective area of ​​the subsoil to be compacted can be used as the basis for displaying such soil cultivation condition information.

[0029] The head-up display can be further configured to show, in addition to the information comprising perspective projections, subsurface information, such as the temperature of the currently driven-over area of ​​the subsoil 24 or its compaction state, for example in an edge area of ​​the head-up display 54 and outside the perspective projection. Where, for example, information about the temperature of the area 26 of the subsoil 24 to be compacted in front of the soil compactor 10 is to be displayed in the area of ​​the perspective projection, numerical values ​​for the temperature or compaction state, for example, can be displayed within the depicted passes 58.

[0030] The head-up display 54 can be further configured to display, for example, environmental information 64, 64' in its peripheral area, such as ambient temperature, humidity, wind speed, or precipitation. This information also enables the operator 30 to carry out a compaction process adapted to such environmental conditions, if necessary even deviating from a compaction plan drawn up taking other environmental conditions into account.

[0031] The information generated by the head-up display 54, projected in perspective onto the area 26 of the subsoil 24 in front of the soil compactor 10, enables the operator 30 to carry out a compaction process without having to observe and evaluate displays positioned outside their field of vision 38. This means that the operator 30 is always able to observe the area 26 of the subsoil 24 in front of the soil compactor and simultaneously perceive information related to this area 26 that characterizes and differentiates various parameters relevant to compaction.

[0032] Finally, it should be noted that such a soil compactor can be equipped with multiple subsurface observation windows and corresponding head-up displays. For example, a control station can have two operator workstations, each corresponding to opposite directions of movement of the soil compactor. The operator seat in the station could be rotatable, allowing the operator to choose one of the two workstations depending on the direction of movement of the soil compactor and observe the subsurface to be compacted through a subsurface observation window and head-up display assigned to that workstation.

Claims

1. Soil compactor comprising a compactor assembly (12) movable over a subsoil (24) to be compacted, wherein at least one compactor roller (22) rotatable about a roller rotation axis and an operator station (20) with at least one operator workstation (28) for an operator (30) are provided on the compactor assembly (12), wherein at least one subsoil observation window (36) is provided on the operator station (20) in association with the at least one operator workstation (28), wherein a viewing field (38) for observing an area (26) of the subsoil (24) lying in a direction of movement (B) in front of the soil compactor (10) is open through the at least one subsoil observation window (36), wherein a head-up display (54) is provided in association with at least one subsoil observation window (36),wherein the head-up display (54) is configured to display processing status information representing the processing state of the area (26) of the subsoil (24) lying in front of the soil compactor (10) in the direction of movement (B), wherein the processing status information comprises: - a perspective projection of passes (58, 58') already made or still to be made by the soil compactor (10) in the area (26) of the subsoil (24) lying in front of the soil compactor (10) in the direction of movement (B), or / and - a perspective projection of the area (26) of the subsoil (24) lying in front of the soil compactor (10) in the direction of movement (B) with areas (62, 62') of different states of the subsoil (24) to be compacted Subsurface (24) differentiating representation., 2. Soil compactor according to claim 1, characterized by the fact that The processing status information includes subsurface information representing the state of the subsurface to be compacted (24).

3. Soil compactor according to claim 1 or 2, characterized by the fact that in the representation of the passes already carried out (58) the passes are characterized with regard to their temporal sequence and / or a direction of movement of the soil compactor (10) during a respective pass (58) and / or a number of passes (58) representing the passes carried out in each pass.

4. Soil compactor according to one of claims 1-3, characterized by the fact that in the representation of areas of different conditions of the subsoil to be compacted (24) areas of different degrees of compaction and / or areas of different subsoil temperatures are differentiated.

5. Soil compactor according to claim 2 or claim 3 or 4, insofar as it refers back to claim 2, characterized by the fact that The subsurface information includes information about the degree of compaction and / or information about the subsurface temperature.

6. Soil compactor according to one of claims 1-5, characterized by the fact that The soil compactor (10) is provided with a device (40) for providing position information representing the position of the soil compactor (10) on the subsoil (24) to be compacted.

7. Soil compactor according to one of claims 1-6, characterized by the fact that The soil compactor (10) is provided with a device (42) for providing temperature information representing the temperature of the subsoil (24) to be compacted.

8. Soil compactor according to claim 6 and claim 7, characterized by the fact thatIn the representation of areas of different condition of the subsoil to be compacted (24), the areas of different condition are represented on the basis of position information and on the basis of temperature information.

9. Soil compactor according to one of claims 1-8, characterized by the fact that The soil compactor (10) is provided with a device (60) for providing compaction state information representing the compaction state of the subsoil (24) to be compacted.

10. Soil compactor according to claim 6 and claim 9, , characterized by the fact that In the representation of areas of different condition of the subsoil to be compacted (24), the areas of different condition are represented on the basis of the position information and on the basis of the compaction condition information.

11. Soil compactor according to one of claims 1-10, characterized by the fact thatthe head-up display (54) is designed to display environmental state information (64, 64') representing an environmental state.

12. Soil compactor according to claim 11, characterized by the fact that The environmental condition information (64, 64') includes ambient temperature information and / or humidity information and / or wind speed information and / or precipitation amount information.

13. Soil compactor according to one of claims 1-12, characterized by the fact that at least half, preferably at least 80% of the background observation window (36) is covered by the head-up display (54).

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