INDUSTRIAL TRUCK WITH A DATA BUS AND A SECOND SENDING RECEIVING UNIT

• US 20070233304A1
• Filed: 03/23/2007
• Published: 10/04/2007
• Est. Priority Date: 03/29/2006
• Status: Abandoned Application

• Current Assignee: Jungheinrich AG
• Original Assignee: Jungheinrich AG
• Inventors: Manken, Frank, Baginski, Ralf, von Werder, Martin
• Application Number:
  US11/690,311
• Publication Number:
  US 20070233304A1
• Time in Patent Office: Days
• US Class Current: 700/115
• CPC Class Codes: B66F 9/0755 Position control; Position detectors
• CPC Class Codes: B66F 9/24 Electrical devices or systems

Abstract

An industrial truck with a data bus, to which several electronic units of the industrial truck are connected which send or receive telegrams via the data bus, and with a sending and receiving unit which can acquire data of a transponder present in the sending and receiving range of the sending and receiving unit, wherein the sending and receiving unit is connected to the data bus and analyses telegrams sent via the data bus and/or sends telegrams to the data bus.

Claims

1. An industrial truck with a data bus, to which several electronic units of the industrial truck are connected which send or receive telegrams via the data bus, and with a sending and receiving unit which can acquire data of a transponder present in the sending and receiving range of the sending and receiving unit, characterised in that the sending and receiving unit is connected to the data bus and analyses telegrams sent via the data bus and/or sends telegrams to the data bus.

2. An industrial truck according to claim 1, characterised in that the sending and receiving unit has an interface for direct connection with the data bus.

3. An industrial truck according to claim 1, characterised in that an analysing unit is provided, which analyses signals from the transponder received by the sending and receiving unit, and which is connected to the data bus.

4. An industrial truck according to claim 1, characterised in that the sending and receiving unit is a RFID sending and receiving unit.

5. An industrial truck according to claim 1, characterised in that the sending and receiving unit comprises a control module which analyses telegrams sent via the data bus and which activates and deactivates the sending and receiving unit.

6. An industrial truck according to claim 1, characterised in that a load sensing system, which measures the loading condition of the load holding means, is connected to the data bus.

7. A method to operate an industrial truck according to claim 1, wherein the sending and receiving unit is controlled in accordance with telegrams sent via the data bus.

8. A method according to claim 7, wherein the sending and receiving unit is activated and deactivated in accordance with telegrams sent via the data bus.

9. A method according to claim 7, wherein the sending and receiving unit is activated upon falling below a first travelling speed and deactivated upon exceeding a second travelling speed, wherein the first travelling speed is smaller than or equal to the second travelling speed.

10. A method according to claim 7, wherein the sending and receiving unit is activated and deactivated depending on the position of the lifting mast or of the load holding means.

11. A method according to claim 7, wherein the sending and receiving unit is activated and deactivated depending on a loading condition of the load holding means which is acquired by a load sensing system.

12. A method according to claim 7, wherein telegrams sent to the data bus by the sending and receiving unit act automatically upon the control system of the industrial truck.

13. A method according to claim 12, wherein the travelling speed is limited depending on telegrams sent to the data bus by the sending and receiving unit.

14. A method according to claim 12, wherein the height of the load holding means or the maximum lifting or lowering speed is controlled depending on telegrams sent to the data bus by the sending and receiving unit.

15. A method according to claim 7, wherein telegrams sent to the data bus by the sending and receiving unit are analysed and data contained therein are displayed on the display of an on-board computer, the on-board computer being connected to the data bus.