CA2568986A1 - Process field device with radio frequency communication - Google Patents
Process field device with radio frequency communication Download PDFInfo
- Publication number
- CA2568986A1 CA2568986A1 CA002568986A CA2568986A CA2568986A1 CA 2568986 A1 CA2568986 A1 CA 2568986A1 CA 002568986 A CA002568986 A CA 002568986A CA 2568986 A CA2568986 A CA 2568986A CA 2568986 A1 CA2568986 A1 CA 2568986A1
- Authority
- CA
- Canada
- Prior art keywords
- circuitry
- process control
- control loop
- communicating
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33192—Radio link, wireless
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/80—Management or planning
Abstract
A field device (14) for use in an industrial process control or monitoring system (10) connects to a two-wire process control loop (16). The loop (16) carries data and provides power to the field device (14). RF circuitry (22) in the field device (14) is provided for radio frequency communication. A power supply (18) powers the RF circuitry (22) using power received from the two-wire process control loop (16).
Claims (28)
1. A field device for use in an industrial process control or monitoring system, comprising:
terminals configured to connect to a two-wire process control loop configured to carry data and to provide power;
radio frequency (RF) communication circuitry configured for radio frequency communication; and power supply circuitry configured to power the RF circuitry using power received completely from the two-wire process control loop.
terminals configured to connect to a two-wire process control loop configured to carry data and to provide power;
radio frequency (RF) communication circuitry configured for radio frequency communication; and power supply circuitry configured to power the RF circuitry using power received completely from the two-wire process control loop.
2. The apparatus of claim 1 including:
an energy storage capacitor configured to store an electrical charge using power received from the two-wire process control loop; and wherein the power supply circuitry is configured to use power from the electrical charge stored on the energy storage capacitor.
an energy storage capacitor configured to store an electrical charge using power received from the two-wire process control loop; and wherein the power supply circuitry is configured to use power from the electrical charge stored on the energy storage capacitor.
3. The apparatus of claim 2 wherein the energy storage capacitor comprises a super capacitor.
4. The apparatus of claim 1 wherein the RF
circuitry is configured for bi-directional communication.
circuitry is configured for bi-directional communication.
5. The apparatus of claim 1 wherein the RF
circuitry is configured to transmit RF data as a function of information received from the two-wire process control loop in accordance with the HART
protocol.
circuitry is configured to transmit RF data as a function of information received from the two-wire process control loop in accordance with the HART
protocol.
6. The apparatus of claim 1 including a transducer or actuator configured to interact with an industrial process.
7. The apparatus of claim 6 wherein the RF
circuitry including a modular circuit board which carries the RF circuitry, the modular circuit board configured to mount in a housing of the field device.
circuitry including a modular circuit board which carries the RF circuitry, the modular circuit board configured to mount in a housing of the field device.
8. The apparatus of claim 1 wherein the RF
circuitry is configured for digital communication.
circuitry is configured for digital communication.
9. The apparatus of claim 1 wherein the RF
circuitry is configured for analog communication.
circuitry is configured for analog communication.
10. The apparatus of claim 1 wherein the terminals are configured to couple in series with the two-wire process control loop.
11. The apparatus of claim 1 including:
an explosion proof housing configured to enclose the RF circuitry', an integral RF transparent region in the housing configured to allow RF
transmission therethrough.
an explosion proof housing configured to enclose the RF circuitry', an integral RF transparent region in the housing configured to allow RF
transmission therethrough.
12. The apparatus of claim 11 wherein the RF
transparent region comprises glass.
transparent region comprises glass.
13. The apparatus of claim 12 including an end cap configured to mount to a main housing and wherein the end cap includes the RF transparent region.
14. The apparatus of claim 1 including:
a circuit board configured to carry the RF
circuitry;
an RF antenna coupled to the RF circuitry and carried on the RF circuit board.
a circuit board configured to carry the RF
circuitry;
an RF antenna coupled to the RF circuitry and carried on the RF circuit board.
15. The apparatus of claim 1 wherein the RF
circuitry is integral with a terminal block which carries the terminals.
circuitry is integral with a terminal block which carries the terminals.
16. The apparatus of claim 1 wherein the RF
communication circuitry is configured to transmit an RF
signal related to an analog current level carried through the process loop.
communication circuitry is configured to transmit an RF
signal related to an analog current level carried through the process loop.
17. The apparatus of claim 1 wherein the RF
communication circuitry is configured to transmit an RF
signal related to a digital signal carried by the process control loop.
communication circuitry is configured to transmit an RF
signal related to a digital signal carried by the process control loop.
18. The apparatus of claim 1 including a HART
module coupled to the RF communication circuitry configured to operate as a bi-directional HART to RF
gateway unit.
module coupled to the RF communication circuitry configured to operate as a bi-directional HART to RF
gateway unit.
19. The apparatus of claim 1 wherein the RF
communication circuitry is configured for periodic communication.
communication circuitry is configured for periodic communication.
20. The apparatus of claim 1 wherein the RF
communication circuitry is configured to transmit an RF
signal related to a process variable.
communication circuitry is configured to transmit an RF
signal related to a process variable.
21. A method for communicating in a field device for use in an industrial process control or monitoring system, comprising:
connecting to a two-wire process control loop configured to carry data and to provide power;
communicating using a radio frequency (RF) signal; and powering the RF communicating using power received completely from the two-wire process control loop.
connecting to a two-wire process control loop configured to carry data and to provide power;
communicating using a radio frequency (RF) signal; and powering the RF communicating using power received completely from the two-wire process control loop.
22. The method of claim 21 wherein powering includes storing an electrical charge in a capacitor using power received from the two-wire process control loop
23. The method of claim 21 wherein the communicating comprises bi-directional communicating.
24. The method of claim 21 wherein the communicating comprises transmitting RF data as a function of information received from the two-wire process control loop in accordance with the HART
protocol.
protocol.
25. The method of claim 21 wherein the communicating comprises digital communicating.
26. The method of claim 21 wherein the communicating comprises analog communicating.
27. The method of claim 21 wherein the connecting comprises connecting in series with the two-wire process control loop.
28. The method of claim 21 wherein the communicating includes bi-directional communication between the two wire lop and the RF signal.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/878,235 US7262693B2 (en) | 2004-06-28 | 2004-06-28 | Process field device with radio frequency communication |
US10/878,235 | 2004-06-28 | ||
PCT/US2005/021757 WO2006025918A2 (en) | 2004-06-28 | 2005-06-21 | Process field device with radio frequency communication |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2568986A1 true CA2568986A1 (en) | 2006-03-09 |
CA2568986C CA2568986C (en) | 2012-03-13 |
Family
ID=35507416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2568986A Expired - Fee Related CA2568986C (en) | 2004-06-28 | 2005-06-21 | Process field device with radio frequency communication |
Country Status (10)
Country | Link |
---|---|
US (2) | US7262693B2 (en) |
EP (2) | EP2985665B1 (en) |
JP (1) | JP4762235B2 (en) |
CN (2) | CN102629123B (en) |
AU (1) | AU2005280612C1 (en) |
BR (1) | BRPI0512605A (en) |
CA (1) | CA2568986C (en) |
MX (1) | MXPA06014984A (en) |
RU (1) | RU2390814C2 (en) |
WO (1) | WO2006025918A2 (en) |
Cited By (1)
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WO2011050484A1 (en) * | 2009-11-02 | 2011-05-05 | Snap-On Tools Of Canada , Ltd. | System for monitoring and / or controlling equipment in a hazardous area |
US8692648B2 (en) | 2009-11-02 | 2014-04-08 | Snap-On Tools Of Canada, Ltd. | System for monitoring and/or controlling equipment in a hazardous area |
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WO2006025918A2 (en) | 2006-03-09 |
BRPI0512605A (en) | 2008-03-25 |
EP2985665A3 (en) | 2016-06-01 |
US7956738B2 (en) | 2011-06-07 |
RU2390814C2 (en) | 2010-05-27 |
CN1969238B (en) | 2012-05-23 |
CN102629123A (en) | 2012-08-08 |
CN102629123B (en) | 2015-01-14 |
EP2985665B1 (en) | 2021-08-04 |
US7262693B2 (en) | 2007-08-28 |
EP1776621A2 (en) | 2007-04-25 |
CA2568986C (en) | 2012-03-13 |
WO2006025918A3 (en) | 2006-05-04 |
JP4762235B2 (en) | 2011-08-31 |
US20070285224A1 (en) | 2007-12-13 |
EP2985665A2 (en) | 2016-02-17 |
US20050289276A1 (en) | 2005-12-29 |
RU2007103170A (en) | 2008-08-10 |
AU2005280612B2 (en) | 2010-04-01 |
MXPA06014984A (en) | 2007-03-21 |
JP2008504790A (en) | 2008-02-14 |
AU2005280612A1 (en) | 2006-03-09 |
CN1969238A (en) | 2007-05-23 |
AU2005280612C1 (en) | 2010-09-09 |
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