[특허]Network platform for field devices

[미국특허] Network platform for field devices 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-013/14
출원번호	US-0422927 (1999-10-21)
발명자 / 주소	White, H. Philip Marcinik, Carl L.
인용정보	피인용 횟수 : 14 인용 특허 : 13

초록 ▼

The present invention comprises a network platform that couples field devices to a TCP-IP based enterprise network having a control engine containing control logic for monitoring and controlling the field devices. In one embodiment, the network platform couples the field devices to the enterprise network through a network switch. Signals flowing through the network switch to and from the field devices may be assigned varying levels of priority wherein the network switch resolves resource conflicts by granting priority to the signal possessing the highest priority. Alternatively, signals flowing through the network switch to and from the field devices may be classified according to the type of signal transmission and the network switch reserves a portion of switch resources exclusively for certain types of signals.

대표청구항 ▼

1. A control system comprising: an IP based enterprise network for networking network devices wherein at least one network device contains a control engine having control logic for controlling and monitoring field devices; and a network platform having a CPU and a network arbitrator for coupling signals between the CPU and the network devices, the CPU configured to receive input signals from the field devices and translate the input signals into an IP based representation for transmission to the enterprise network for interaction with the control engine and to receive IP based output signals from the control engine and translate them into output signals for transmission to the field devices, the network arbitrator comprising a network switch, wherein the input signals from the field devices and the output signals for transmission to the field devices are classified into a plurality of data packet priority levels and wherein the network switch resolves a resource conflict among the input and output signals within the network switch by monitoring the priority levels and granting priority to a signal whose priority level is higher than the priority level of a conflicting signal. 2. The control system of claim 1 wherein the input signals from the field devices and the output signals for transmission to the field devices are classified according to a plurality of types of signal transmission and wherein the network switch reserves switch resources exclusively for at least one type of signal transmission. 3. The control system of claim 1 wherein the network platform further comprises: a backplane having at least one bus wherein the at least one bus couples to the CPU; and a signal interface module coupled to the at least one bus and to a field device wherein the signal interface module possesses protection circuitry for protecting the at least one bus from voltage spikes produced by the coupled field device and isolation circuitry for isolating a grounds of the at least one bus and a ground of the coupled field device. 4. The control system of claim 3 wherein the coupled field device produces an analog input signal, and wherein the signal interface module further comprises an analog to digital converter for converting the analog input signal to a digitized analog input signal, and wherein the at least one bus is a serial bus. 5. The control system of claim 3 wherein the at least one bus is a serial bus, the signal interface module further comprising a digital to analog converter for converting a digitized analog output signal received on the serial bus to an analog output signal, and wherein the coupled field device receives the analog output signal. 6. The control system of claim 3 wherein the at least one bus is a parallel bus, and the coupled field device produces a digital input signal, the signal interface module further comprising driver circuitry for driving the digital input signal onto the parallel bus. 7. The control system of claim 3 wherein the at least one bus is a parallel bus, the signal interface module further comprising driver circuitry for driving a received digital output signal carried on the parallel bus to the coupled field device.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Dimmick Roger F. (Rochester MN) Fitterer Gary A. (Rochester MN) Jajowka Jeff A. (Rochester MN) Otto William F. (Rochester MN) Rasmussen Jerry R. (Rochester MN) Sobotta Terry L. (Byron MN), Computer expansion module apparatus.
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Tapperson Gary (Austin TX) Boyd Thomas Andrew (Austin TX), Distributed control system having central control providing operating power to wireless transceiver connected to industr.
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Donhauser Peter (Amberg DEX) Gmeiner Richard (Amberg DEX), Expandable programmable controller.
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Van de Steeg Kerry (Chagrin Falls OH) Blech Steven P. (Twinsburg OH), I/O module with reduced isolation circuitry.
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Alden Tor Andrew (Bernardsville NJ) Fontana Edward Clark (Rockwall TX) Somdahl Sonja K. (Rockwall TX), Identification icon indicia for plug-in units of a power distribution system.
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Brian Kevin Daly ; David William James Holmes ; Michael Luna ; Michael P. Moore ; John Eric Myhre ; Adrian David Smith, Method and system for providing data communication with a mobile station.
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Hodorowski John (Hales Corners WI), Method of programming industrial controllers with highly distributed processing.
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Flood Mark A. ; Bittorf Bradley J. ; Cook William B. ; Graham D. Alan ; Law Robert D. ; Mohnke David E. ; Sepsi Robert R. ; Toma Jack F., Programmable controller backup system.
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Prager, Jay M.; Gonzales, Roman Y., Readily expandable input/output construction for programmable controller.
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Floro William E. (Willoughby OH), Removable function card for a programmable controller processor.
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Kamerman Joel B. (Lake Oswego OR) Mihalik Michael A. (Beaverton OR) Porter Kim S. (Portland OR), Stackable modular storage tower.
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Hamamoto Shinichi,JPX ; Watanabe Ken,JPX ; Tsuchiya Kazuaki,JPX ; Ikeda Naoya,JPX, Translator for IP networks, network system using the translator, and IP network coupling method therefor.
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Gibbs Benjamin Kendrick ; Bilgic Izzet Murat ; Mansfield Carl, Wireless packet data communication apparatus and method.
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이 특허를 인용한 특허 (14) 인용/피인용 타임라인 분석

Lange, Christopher M.; Scherer, William C; Sutter, Fred A; Mrozek, Greg T.; Parnes, Gary S., Distributed monitoring and control fluid handling system.
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Naismith, Ron; Tanzman, Allan; Papadopoulos, Dean; Swales, Andy; Metcalf, Orlando P., Input/output (I/O) scanner for a control system with peer determination.
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Preiss, Otto; der Mauer, Dominik Auf, Integration of a field device in an installation control system.
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Curry, James E.; Farris, Robert D., Internet long distance telephone service.
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Gardell, Steven E.; Zibman, Israel B.; Depp, Gregory C., Multi-line appearance telephony via a computer network.
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Voit, Eric A.; Balkovich, Edward E.; Goodman, William D.; Gadre, Jayant G.; White, Patrick E.; Young, David E., Network session management for telephony over hybrid networks.
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Voit, Eric A.; Balkovich, Edward E.; Goodman, William D.; Gadre, Jayant G.; White, Patrick E.; Young, David E., Network session management for telephony over hybrid networks.
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Farris, Robert D.; Voit, Eric A., Packet data network voice call quality monitoring.
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Sheikh, Rizwan; Strickland, Stephen Edward; Leef, Phillip, Storage system management with diplexing using USB signal conversion.
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Rydberg, Kris M.; Lunstad, Andrew J.; Berscheid, Herb, System, method, and device for communicating between a field device, device controller, and enterprise application.
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White, Patrick E.; Farris, Robert D., Telephone service via networking.
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White, Patrick E.; Farris, Robert D., Telephone service via packet-switched networking.
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Farris, Robert D.; Bartholomew, Dale L., Telephony communication via varied redundant networks.
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Farris,Robert D.; Bartholomew,Dale L., Telephony communication via varied redundant networks.
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[미국특허] Network platform for field devices 원문보기

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이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

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