Building machine

• US 20080216021A1
• Filed: 02/15/2008
• Published: 09/04/2008
• Est. Priority Date: 02/17/2007
• Status: Active Grant

• Current Assignee: Wirtgen GmbH (Deere & Company)
• Original Assignee: Wirtgen GmbH (Deere & Company)
• Inventors: Berning, Christian, Busley, Peter, Hahn, Gunter, Kramer, Thomas
• Granted Patent: US 9,121,145 B2
• Time in Patent Office: Days
• US Class Current: 715/846
• CPC Class Codes: E01C 19/00 Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving surface stabilisation E01C21/00; apparatus specially adapted for reconditioning or repairing paving E01C23/00
• CPC Class Codes: E01C 23/088 Rotary tools, e.g. milling drums for forming recesses to receive marking materials E01C23/0946

Abstract

The invention relates to a building machine, in particular a road-building machine, having running gear and a chassis which is fitted with a working unit which has one or more implements. The building machine has a stored-program control device for controlling the implements of the working unit and a device for displaying operational variables or operational states in the form of characters or images. In addition to the stored-program control device, the building machine has a centralized data processing device which is embodied in such a way that operational variables or operational states can be displayed as characters or images with the device for displaying operational variables or operational states. The exchange of data between the stored-program control device and the centralized data processing device is carried out via a first data bus, while the exchange of data between the data processing device and the device for displaying operational variables or operational states is carried out via a second data bus.

Claims

1. A building machine having running gear and a chassis which is fitted with a working unit which has one or more implements, a stored-program control device for controlling the implements of the working unit, and a device for displaying operational variables or operational states in the form of characters or images,

characterized in that

the building machine has, in addition to the stored-program control device a centralized data processing device which is embodied in such a way that operational variables or operational states can be displayed as characters or images on the device or displaying operational variables or operational states, wherein

at least a first data bus is provided for exchanging data between the stored-program control device and the centralized data processing device, which data bus operates according to a first data transmission method, and

at least a second data bus is provided for exchanging data between the centralized data processing device and the device for displaying operational variables or operational states, which data bus operates according to a second data transmission method which differs from the first data transmission method according to which the first data bus operates.

2. The building machine according to claim 1, characterized in that the at least one first data bus is a CAN (Controller Area Network) bus.

3. The building machine according to claim 1, characterized in that the at least one second data bus is an LVDS (Low Voltage Differential Signalling) bus.

4. The building machine according to claim 1, characterized in that the centralized data processing device has a main processor for carrying out computing operations and a graphic unit for controlling the display of the characters or images for the device for displaying operational variables or operational states in the form of characters or images.

5. The building machine according to claim 1, characterized in that the device for displaying operational variables or operational states has a display unit which is arranged at an operator control location on the building machine.

6. The building machine according to claim 1, characterized in that the device for displaying operational variables or operational states has a plurality of display units which are arranged at operator control locations on the building machine

7. The building machine according to claim 1, characterized in that a device for inputting commands is provided, which device preferably has one or more switches and/or one or more keypads.

8. The building machine according to claim 1, characterized in that the building machine has a device for recording images at one or more locations on the building machine.

9. The building machine according to claim 8, characterized in that at least a third data bus is provided for exchanging data between the at least one device for recording images and the device for displaying operational parameters or operational states.

10. The building machine according to claim 8, characterized in that at least a third data bus for exchanging data between the at least one device for recording images and the centralized data processing device is provided.

11. The building machine according to claim 9 or 10, characterized in that the at least one third data bus is an LVDS (Low Voltage Differential Signalling) bus.

12. The building machine according to claim 1, characterized in that the stored-program control device interacts with the centralized data processing device in such a way that a predefined display of characters or images, assigned to the respective operational variable or the respective operational state, can be displayed on the device for displaying operational variables or operational states as a function of a specific operational variable or a specific operational state.

13. The building machine according to claim 1, characterized in that the building machine has a device for acquiring operational variables or operational states, in particular for acquiring a change in the direction of travel of the building machine.

14. The building machine according to claim 13, characterized in that the stored-program control device interacts with the centralized data processing device in such a way that, before the change in the direction of travel, a first display of characters or images can be displayed, and after the change in the direction of travel, a second display of characters or images can be displayed, using the device for displaying operational variables or operational states.

15. The building machine according to claim 1, characterized in that the centralized data processing device has at least one interface for communication with at least one external unit.