WO2006011414A1 - フィールド制御システム及び無線通信装置 - Google Patents
フィールド制御システム及び無線通信装置 Download PDFInfo
- Publication number
- WO2006011414A1 WO2006011414A1 PCT/JP2005/013398 JP2005013398W WO2006011414A1 WO 2006011414 A1 WO2006011414 A1 WO 2006011414A1 JP 2005013398 W JP2005013398 W JP 2005013398W WO 2006011414 A1 WO2006011414 A1 WO 2006011414A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- wireless communication
- wireless
- unit
- communication device
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008054 signal transmission Effects 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000010248 power generation Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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] or 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] or 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
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31162—Wireless lan
-
- 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
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31251—Redundant access, wireless and hardware access to fielddevices
-
- 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
- G05B2219/33203—Wireless transmission of power and data, inductively, rotary transformer
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/40—Remote control systems using repeaters, converters, gateways
Definitions
- the present invention is a control computer system connected to field devices such as pressure Z differential pressure transmitters, various flow meters, thermometers, and valve 'positioners' distributed in plants, factories, etc.
- the present invention relates to a field control system that improves signal transmission / reception operation between the two and a wireless communication device used in the system.
- Field devices are distributed and arranged in plants, factories, and the like. Field devices include pressure Z differential pressure transmitters, various flow meters, thermometers, valve positioners, and so on.
- a field device is connected to a control computer system via a two-wire signal transmission line, etc., generates power from a 4-20 mA signal cable transmitted via the transmission line, and collects collected data. Data to the control computer 'system.
- JP-T-10-508129, JP-A-2003-134030, JP-A-2003-134261, US Pat. No. 5,682,476 and US Pat. No. 6,236,334 are referred to as related technologies.
- FIG. 3 is a diagram illustrating an example of an entire system to which field devices as related technologies are connected.
- a differential pressure transmitter D including a valve V, a positioner P, a flow meter F, and an orifice o is connected as a variety of field devices to a nozzle Q through which various fluids flow.
- Each field device P, F, D is connected to the control system FCS via the input / output device I / O via the two-wire signal transmission lines LI, L2, L3, and a signal of 4-20mA. Electric power is supplied by and the detected physical quantity signal (flow rate signal, pressure signal, etc.) is transmitted.
- each field device P, F, D has a built-in wireless communication unit, converts the detected physical quantity signal into a wireless signal, and transmits it to a wireless station (not shown).
- Ru [0009]
- a diagnostic tool MM I is installed at the upper level, or a diagnostic sensor is installed in an existing field device, and in addition to the above two-wire transmission line.
- Systems have also been proposed in which new signal lines are installed to diagnose field devices.
- FIG. 4 shows a general configuration block of a field device.
- the field device 10 includes a sensor S that detects physical quantities of various fluids, and performs various calculations according to the values from the AZD conversion unit 11 and the AZD conversion unit 11 that convert the values from the sensor S into AZD.
- Executes the processing unit 12 of the CPU, etc., and the operation result of the processing unit 12 is DZ-A converted and output to the 2- wire signal transmission line L DZA converter 13, various instruction signals from the 2-wire signal transmission line A receiving unit 14 that receives setting signals and the like and sends them to the arithmetic unit 12
- the input / output device IZO shown in FIG. 3 simply includes a power supply ⁇ ⁇ ⁇ for supplying power to the two-wire transmission line L and a resistor AZD modification (not shown) shown in FIG. It is a block provided.
- the physical quantity detected by the sensor S is subjected to various calculations and output to the 2 -wire transmission line L as a 4-20 mA current signal.
- the input / output device IZO receives the 4 20 mA current signal and sends it to the host control system (controller) FCS or diagnostic tool MMI.
- An object of the present invention is to provide a field control system and a wireless communication apparatus that can easily perform wireless communication of an existing field device.
- the present invention provides a field device installed at the site of a process and the above-described file via a signal line.
- a control computer system connected to a device, a signal conversion unit provided in the middle of the signal line, for converting a signal transmitted through the signal line based on a wireless protocol, and the signal conversion unit.
- a field control system including a wireless communication device including a wireless communication unit that wirelessly transmits a converted signal.
- the wireless communication device includes a power generation unit that generates power from a signal transmitted through the signal line.
- the power generation unit has a variable impedance.
- the wireless communication unit receives a wireless signal.
- the signal conversion unit converts the radio signal received by the radio communication unit
- the radio communication device converts the signal converted by the signal conversion unit to the signal
- a wired communication unit that superimposes the signal transmitted on the line and transmits the signal to the field device is provided.
- the wireless communication device includes a route setting unit that determines signal transmission wirelessly transmitted from the wireless communication unit.
- the wireless communication device includes a path setting unit that determines a transmission destination of a signal obtained by converting the wireless signal received by the wireless communication unit.
- the wireless communication device includes a battery as a power source.
- the wireless communication device is connected in series to the signal line.
- the signal line is a two-wire transmission line.
- the present invention relates to a wireless communication apparatus provided in the middle of the signal line between the control computer system and a field device connected to the control computer 'system via a signal line installed at the site of the process.
- a signal conversion unit that converts a signal transmitted through the signal line based on a wireless protocol; and a wireless communication unit that wirelessly transmits the signal converted by the signal conversion unit.
- a wireless communication device is provided.
- the wireless communication device includes a power generation unit that generates power from a signal transmitted through the signal line.
- the power generation unit has a variable impedance.
- the wireless communication unit receives a wireless signal.
- the signal conversion unit converts the wireless signal received by the wireless communication unit, and the wireless communication device converts the signal converted by the signal conversion unit to the signal line.
- a wired communication unit that superimposes the signal to the field device and transmits the signal to the field device.
- the wireless communication apparatus includes a route setting unit that determines a signal transmission destination wirelessly transmitted from the wireless communication unit.
- the wireless communication apparatus includes a route setting unit that determines a transmission destination of a signal obtained by converting the wireless signal received by the wireless communication unit.
- the wireless communication device includes a battery as a power source.
- the wireless communication device is connected in series to the signal line.
- the signal line is a two-wire transmission line.
- the signal converter can convert the signal transmitted through the signal line based on the wireless protocol and transmit the signal wirelessly.
- the power source of the wireless communication device can be generated from a signal transmitted through the signal line by variable impedance or the like, power saving can be realized.
- the wireless communication apparatus can receive a wireless signal from the outside, bidirectional wireless communication is possible.
- the signal conversion unit converts the received wireless signal, and the wired communication unit superimposes the converted signal on the signal transmitted through the signal line, so that various settings of the field device are changed by wireless communication. be able to.
- the transmission destination of the wireless signal corresponding to the signal transmitted through the signal line or the wireless signal also received external force is sent to other field devices as well as a normal wireless station. Since the wireless communication device can be connected, this wireless communication device can be used as a wireless relay point. [0040] By using a battery as a power source of the wireless communication device, it is possible to realize that power on the signal line is not consumed.
- connection of the wireless communication device is connected in series to a signal line that is, for example, a two-wire signal transmission line, it is not necessary to make extensive modifications or changes to the field devices and signal lines Explanation
- FIG. 1 is a diagram showing an overall configuration of a field device of the present invention.
- FIG. 2 is a diagram of an entire system using the field device of the present invention.
- FIG. 3 is a diagram of an overall system using field devices as related technology.
- FIG. 4 is a configuration block diagram of a field device as a related technology.
- FIG. 1 shows a field machine according to the present invention. It is a block diagram showing the structure of a container.
- a radio communication device 20 is connected in series with the transmission line L in the middle of the two-wire signal transmission line L that couples the host control computer system and the field device 10. ⁇ . Since the field device 10 has the same configuration as the field device 10 shown in FIG. 4, the description thereof is omitted.
- the wireless communication device 20 is installed in the existing field device 10 so as to be interrupted in the middle of the two-wire signal transmission line L which is a means for communication with the host control computer system.
- the wireless communication device 20 includes a variable impedance 21, a signal conversion unit 22, a wireless communication unit 23, and a route setting unit 22a.
- the variable impedance 21 obtains power from a small current flowing through the two-wire signal transmission line L.
- the signal converter 22 converts the 420 mA current signal flowing in the transmission line L based on the wireless protocol.
- the wireless communication unit 23 wirelessly transmits the signal converted by the signal conversion unit 22, receives an external wireless signal, or transfers the signal to another wireless communication device 20 or the like.
- the signal conversion unit 22 converts the wireless signal received by the wireless communication unit 23.
- the transmission line 21 modulates the signal converted by the signal converter 22 and sends it to the field device 10 side.
- the radio communication device 20 sets a radio path for transmitting radio signals to higher-level radio stations via radio communication devices installed in a plurality of field devices.
- Route setting unit 22a the radio communication device 20 sets a radio path for transmitting radio signals to higher-level radio stations via radio communication devices installed in a plurality of field devices.
- the path setting unit 22a designates an upper radio station to which the radio signal of the radio communication device 20 is to be transmitted, or designates a radio communication device installed in another field device as a relay point
- the circuit unit is set with an algorithm for specifying another wireless communication device.
- a battery 24 may be installed in the radio communication device 20 instead of receiving power from the variable impedance 21 as a power supply unit.
- the present invention having such a configuration operates as follows.
- the wireless communication device 20 shown in FIG. are installed in series at connection points cl, c2, etc. on the two-wire signal transmission line L, for example.
- the electric power necessary for the wireless communication device 20 is generated by the variable impedance 21 from the current of 20 mA flowing through the two-wire signal transmission line L.
- the power is supplied to each of the components.
- variable impedance is regarded as a general shunt regulator in the DC region.
- the signal conversion unit 22 converts the 4-20 mA signal flowing through the two-wire signal transmission line L into a wireless protocol corresponding to the magnitude, and sends it to the wireless communication unit 23.
- the radio transmission / reception unit 23 transmits this radio protocol as a radio signal to a higher-level radio station (not shown).
- the physical quantity signal from the field device 10 may be acquired as a digital signal by modulating the voltage and frequency with the variable impedance 21 and may be transmitted as a radio signal.
- the wireless communication device 20 when the wireless communication device 20 is installed on the two-wire signal transmission line L, when a wireless signal such as a setting change from the outside is received, the following is performed.
- the handheld terminal is used to change the setting of the field device 10. That is, when the field device 10 setting change is received wirelessly.
- the signal conversion unit 22 converts the radio signal into a voltage signal, a frequency signal, etc., and changes the impedance of the variable impedance 21 to receive the signal.
- the setting signal included in the wireless signal is superimposed on the 2-wire transmission line.
- the field device 10 is connected to the two-wire signal transmission line L.
- a radio signal corresponding to the current signal to be applied can be transmitted to the outside.
- this radio signal can be superimposed on the two-wire signal transmission line L to change various settings of the field device 10, or to monitor and monitor the field device.
- the path setting unit 22a has a function of setting a partner to transmit a radio signal from the radio communication device 20 and a partner to transfer a received radio signal! Get.
- a battery 24 may be installed inside a force that generates an example of a current force of 4 20 mA flowing through the two-wire signal transmission line L.
- FIG. 2 is an example of the entire system including field devices to which the wireless communication device 20 is added.
- wireless communication devices PM, FM, DM are connected and added to the two-wire signal transmission lines LI, L2, L3 to which the field devices P, F, D in the overall system shown in Fig. 3 are coupled. This is an example.
- these wireless communication devices PM, FM, and DM are installed at appropriate locations on the two-wire signal transmission lines L1, L2, and L3, respectively.
- each of the field devices P, F, and D interposes the wireless communication devices PM, FM, and DM, and transmits signals to be sent to the two-wire signal transmission lines LI, L2, and L3 to the wireless signal ml , m2, m3 can be transmitted to the radio station ST. Or, you can communicate with the wireless handheld terminal HHT and wireless signal m6.
- the radio may not reach the radio station ST.
- Communication device DM transmits wireless signal m4 to wireless communication device FM
- wireless communication device FM serves as a relay point
- wireless communication device FM transmits wireless signal m5 to wireless communication device PM
- wireless communication device PM You can set the wireless route to send the wireless signal ml from the wireless station ST.
- a route opposite to the above route may be set.
- the relay point If the wireless communication device is out of order, the wireless route may be changed to change the relay point.
- the power generation unit is not generated from the current flowing through the signal transmission line L, but by using the battery 24, the power on the signal transmission line L is not consumed. It can also save power.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Programmable Controllers (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/658,936 US20080122611A1 (en) | 2004-07-27 | 2005-07-21 | Field Control System and Wireless Communication Apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004218082A JP2006039892A (ja) | 2004-07-27 | 2004-07-27 | フィールド機器 |
JP2004-218082 | 2004-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006011414A1 true WO2006011414A1 (ja) | 2006-02-02 |
Family
ID=35786163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/013398 WO2006011414A1 (ja) | 2004-07-27 | 2005-07-21 | フィールド制御システム及び無線通信装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20080122611A1 (ja) |
JP (1) | JP2006039892A (ja) |
WO (1) | WO2006011414A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015222965A (ja) * | 2015-07-06 | 2015-12-10 | 横河電機株式会社 | 無線機器 |
EP1903529B1 (de) * | 2006-09-23 | 2017-04-12 | Pfeiffer Vacuum GmbH | Anordnung mit einem Vakuumgerät |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008031052A2 (en) * | 2006-09-07 | 2008-03-13 | Illinois Tool Works Inc. | Wireless system control and inventory monitoring for welding-type devices |
EP2158656B1 (en) * | 2007-05-02 | 2020-10-21 | Rosemount Inc. | Process field device with battery and overcurrent protection |
JP5029929B2 (ja) | 2010-06-16 | 2012-09-19 | 横河電機株式会社 | フィールド通信システム |
US10761524B2 (en) | 2010-08-12 | 2020-09-01 | Rosemount Inc. | Wireless adapter with process diagnostics |
US9020619B2 (en) * | 2012-04-24 | 2015-04-28 | Fisher Controls International Llc | Method and apparatus for local or remote control of an instrument in a process system |
US9665076B2 (en) * | 2013-01-25 | 2017-05-30 | Fisher Controls International Llc | Methods and apparatus to interface with a digital control loop |
JP5849988B2 (ja) | 2013-05-13 | 2016-02-03 | 横河電機株式会社 | フィールド無線中継装置 |
JP5892117B2 (ja) * | 2013-07-17 | 2016-03-23 | 横河電機株式会社 | フィールド機器及び通信システム |
US11605037B2 (en) | 2016-07-20 | 2023-03-14 | Fisher-Rosemount Systems, Inc. | Fleet management system for portable maintenance tools |
US10599134B2 (en) * | 2016-07-22 | 2020-03-24 | Fisher-Rosemount Systems, Inc. | Portable field maintenance tool configured for multiple process control communication protocols |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH04205202A (ja) * | 1990-11-30 | 1992-07-27 | Yamatake Honeywell Co Ltd | フィールド装置 |
JPH10508129A (ja) * | 1994-10-24 | 1998-08-04 | フィッシャー−ローズマウント システムズ, インコーポレイテッド | 分散コントロールシステムに於けるフィールドデバイスへのアクセスを提供するための装置 |
JP2000132201A (ja) * | 1998-10-27 | 2000-05-12 | Hitachi Ltd | 異種通信媒体による分散制御システム |
JP2003070079A (ja) * | 2001-08-29 | 2003-03-07 | Yokogawa Electric Corp | 通信システム |
JP2003134261A (ja) * | 2001-10-29 | 2003-05-09 | Yokogawa Electric Corp | フィールド機器及びこのフィールド機器を用いた通信システム |
JP2003134030A (ja) * | 2001-10-23 | 2003-05-09 | Yokogawa Electric Corp | 通信システム |
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CA2049618A1 (en) * | 1991-07-18 | 1993-01-19 | Christopher J. O'brien | Integrated transmitter and controller |
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-
2004
- 2004-07-27 JP JP2004218082A patent/JP2006039892A/ja active Pending
-
2005
- 2005-07-21 US US11/658,936 patent/US20080122611A1/en not_active Abandoned
- 2005-07-21 WO PCT/JP2005/013398 patent/WO2006011414A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04205202A (ja) * | 1990-11-30 | 1992-07-27 | Yamatake Honeywell Co Ltd | フィールド装置 |
JPH10508129A (ja) * | 1994-10-24 | 1998-08-04 | フィッシャー−ローズマウント システムズ, インコーポレイテッド | 分散コントロールシステムに於けるフィールドデバイスへのアクセスを提供するための装置 |
JP2000132201A (ja) * | 1998-10-27 | 2000-05-12 | Hitachi Ltd | 異種通信媒体による分散制御システム |
JP2003070079A (ja) * | 2001-08-29 | 2003-03-07 | Yokogawa Electric Corp | 通信システム |
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JP2003134261A (ja) * | 2001-10-29 | 2003-05-09 | Yokogawa Electric Corp | フィールド機器及びこのフィールド機器を用いた通信システム |
JP2004038930A (ja) * | 2002-02-12 | 2004-02-05 | Fisher Rosemount Syst Inc | 汎用性の高いプロセス制御システム用コントローラ |
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EP1903529B1 (de) * | 2006-09-23 | 2017-04-12 | Pfeiffer Vacuum GmbH | Anordnung mit einem Vakuumgerät |
JP2015222965A (ja) * | 2015-07-06 | 2015-12-10 | 横河電機株式会社 | 無線機器 |
Also Published As
Publication number | Publication date |
---|---|
US20080122611A1 (en) | 2008-05-29 |
JP2006039892A (ja) | 2006-02-09 |
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