DEVICE, PARTICULARLY PROTECTIVE SENSOR SYSTEM, FOR A MACHINE TOOL

• US 20110022188A1
• Filed: 11/11/2008
• Published: 01/27/2011
• Est. Priority Date: 01/11/2008
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Werner Hees, Alexander, Braun, Heiko, Krapf, Reiner, Mahler, Michael
• Granted Patent: US 8,670,844 B2
• Time in Patent Office: Days
• US Class Current: 700/12
• CPC Class Codes: F16P 3/00 Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body F16P5/00 takes precedence
• CPC Class Codes: F16P 3/147 using electro-magnetic technology, e.g. tags or radar
• CPC Class Codes: G05B 19/05 Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
• CPC Class Codes: G05B 19/406 characterised by monitoring or safety G05B19/19 takes precedence
• CPC Class Codes: G05B 2219/50177 Protection for operator during operation, machining
• CPC Class Codes: Y10T 83/173 Arithmetically determined program
• CPC Class Codes: Y10T 83/175 With condition sensor

Abstract

The invention relates to a device, particularly a machine tool device, having at least one computer (10), at least one transmitter (12) for transmitting a transmission signal (S1, S2), at least one receiver (14) for receiving at least one receiving signal (E1, E2, E3, E4) excited by the transmission signal (S1, S2), and at least one analysis unit (16) which is provided to calculate at least one parameter (P1, P2, P3, P4) by means of the receiving signal (E1, E2, E3, E4). The invention provides that the computer unit (10) is provided to compare the parameter (P1, P2, P3, P4) to at least one comparison parameter (V1, V2, V3, V4) calculated by means of at least one model (M).

Claims

1. Device, particularly a machine tool device, having at least one computer, at least one transmitter for transmitting a transmission signal, at least one receiver (14) for receiving at least one receiving signal excited by the transmission signal, and at least one analysis unit which is provided to calculate at least one parameter by means of the receiving signal wherein the computer unit is provided to compare the parameter to at least one comparison parameter calculated by means of at least one model.

2. The device according to claim 1 wherein the parameter is a reflection variable or a transmission variable.

3. The device according to claim 1, wherein the comparison parameter is assigned to at least one characteristic vector of the model.

4. The device according to claim 3 wherein the characteristic vector provides at least a thickness of a layer whose interaction is described with the transmission signal with the aid of the model.

5. The device according to claim 3, wherein the characteristic vector comprises at least one di-electricity constant of a layer whose interaction is described by the transmission signal with the aid of the model.

6. The device according to claim 3, wherein the characteristic vector provides at least a number of layers which indicates the number of layers of an object that is examined with the aid of the transmission signal, which is incorporated in the calculation by means of the model.

7. The device according to claim 1, wherein the computer provides software, which is provided to calculate the comparison parameter by means of the model.

8. The device according to claim 7 wherein an input unit for putting in at least one characteristic variable, which is used by the software as input value for calculating the comparison parameter.

9. The device according to claim 7, wherein the software is provided to determine a value of the comparison parameter, which realizes a minimal deviation of the comparison parameter from the parameter.

10. The device according to claim 7, wherein the software is provided to distinguish at least two characteristic variable areas of a magnitude of error that has been calculated by means of the model.

11. The device according to claim 1, wherein the transmission signal is a high frequency signal.

12. Protective sensor system with a device according to claim 1.

13. Procedure, in particular with a device according to claim 1, wherein at least one transmission signal is transmitted, at least one receiving signal that has been excited by the transmission signal is received, one parameter is calculated at least by means of the receiving signal and the parameter is compared with at least one comparison parameter that has been calculated by means of a model.