Position measuring device

• US 9,151,598 B2
• Filed: 01/19/2012
• Issued: 10/06/2015
• Est. Priority Date: 03/30/2011
• Status: Active Grant

• Current Assignee: Dr. Johannes Heidenhain GmbH
• Original Assignee: Dr. Johannes Heidenhain GmbH
• Inventors: Tiemann, Marc
• Primary Examiner(s): Punnoose, Roy M
• Application Number:
  US14/007,432
• Publication Number:
  US 20140022561A1
• Time in Patent Office: 1,356 Days
• Field of Search: 356/614
• US Class Current: 1/1
• CPC Class Codes: G01B 11/14 for measuring distance or clearance between spaced objects or spaced apertures G01B11/26 takes precedence; rangefinders G01C3/00
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for
• CPC Class Codes: H04Q 2209/43 using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

A position measuring device includes a position detection unit, which may be used to process positional signals that result from scanning a code track by a scanning unit, into digital positional values, a first interface unit for the communication with a control unit via a data transmission channel, and a second interface unit for the communication with at least one peripheral unit. The first interface unit is a hard-wired interface, and the second interface unit is a wireless radio interface.

Claims

1. A position measuring device, comprising:

a position detection unit adapted to process positional signals, that result from scanning a code track by a scanning unit, into digital positional values,

a first interface unit adapted to communicate with a control unit via a data transmission channel; and

a second interface unit adapted to communicate with at least one peripheral unit;

wherein the first interface unit is arranged as a wired interface and the second interface unit is arranged as a wireless radio interface.

2. The position measuring device according to claim 1, further comprising a communication unit connected to the second interface unit and adapted to control communication with the at least one peripheral unit.

3. The position measuring device according to claim 2, wherein the communication unit includes a data storage unit adapted to store input and/or output data of the at least one peripheral unit.

4. The position measuring device according to claim 2, wherein the communication unit is connected to the first interface unit, and the first interface unit is adapted to control the communication unit.

5. The position measuring device according to claim 2, wherein the communication unit is connected to the position-detection unit for internal data exchange.

6. The position measuring device according to claim 1, wherein the second interface unit includes a main antenna.

7. The position measuring device according to claim 6, wherein the main antenna is connectable to the second interface unit by a plug connector.

8. The position measuring device according to claim 1, wherein the second interface unit includes:

(a) an RFID read unit or read/write unit;

(b) a Near Field Communication interface;

(c) a Bluetooth interface;

(d) a ZigBee interface; and

/or (e) read unit for SAW sensors.

9. The position measuring device according to claim 1, wherein the control unit and the peripheral unit are spatially separate.

10. A system, comprising:

a code track;

a scanning unit adapted to scan the code track;

a data transmission channel;

a control unit;

at least one peripheral unit; and

a position measuring device, including;

a position detection unit adapted to process positional signals, that result from scanning the code track by the scanning unit, into digital positional values,

a first interface unit adapted to communicate with the control unit via the data transmission channel; and

a second interface unit adapted to communicate with the at least one peripheral unit;

wherein the first interface unit is arranged as a wired interface and the second interface unit is arranged as a wireless radio interface.

11. The system according to claim 10, wherein the control unit and the peripheral unit are spatially separate.

12. A position measuring device, comprising:

position detection means for processing positional signals, that result from scanning a code track by a scanning unit, into digital positional values,

first interface means for communicating with a control unit via a data transmission channel; and

second interface means for communicating with at least one peripheral unit;

wherein the first interface means is arranged as a wired interface and the second interface means is arranged as a wireless radio interface.

13. The position measuring device according to claim 12, wherein the control unit and the peripheral unit are spatially separate.