Boots – shoes – and leggings
Patent
1992-03-31
1995-06-27
Beausoliel, Jr., Robert W.
Boots, shoes, and leggings
3642426, 364DIG1, 371 683, 371 36, G06F 1108, G06F 1540
Patent
active
054287693
ABSTRACT:
A process control interface system having a network of distributed triply redundant input/output field computer units. The system includes a plurality of self-contained remotely located triply redundant field computer units connected to decision making redundant process control computers through a bi-directional communication network having at least two concurrently active communication channels. Each of the field computer units include a set of at least redundant field computers for arbitrating both input and output signals. The input arbitration method enables a plurality of selectable default input conditions, such as select HIGH and select LOW, in the event that a majority agreement cannot be reached among valid input signals. The output arbitration method includes a plurality of selectable default output conditions, such as fail SAFE and fail LAST. Each of the default input and output conditions may be rapidly adjusted through software selection. The field computer units also include individual abort circuits for each output signal to be transmitted to a device which affects the operation of the physical process. These abort circuits effectively enforce the output value signals arbitrated independently through each of the three redundant field computers using a voting procedure.
REFERENCES:
patent: 3377623 (1968-04-01), Reut
patent: 3593307 (1971-07-01), Gouge et al.
patent: 3636331 (1972-01-01), Amrehn
patent: 3665173 (1972-05-01), Bouricius et al.
patent: 3681578 (1972-08-01), Stevens
patent: 3735356 (1973-05-01), Yates
patent: 3783250 (1974-01-01), Fletcher
patent: 3845356 (1974-10-01), Bullard et al.
patent: 3895223 (1975-07-01), Neuner
patent: 3898621 (1975-08-01), ZeLinski
patent: 3921149 (1975-11-01), Kreis
patent: 4015246 (1977-03-01), Hopkins
patent: 4032757 (1977-06-01), EccLes
patent: 4049957 (1977-08-01), Kera
patent: 4099234 (1978-07-01), Woods
patent: 4101958 (1978-07-01), Patterson
patent: 4105900 (1978-08-01), Martin et al.
patent: 4133027 (1979-01-01), Hogan
patent: 4153198 (1979-05-01), Eki
patent: 4159444 (1979-06-01), Bartlett et al.
patent: 4198678 (1980-04-01), Maatje
patent: 4228496 (1980-10-01), Katzman
patent: 4251873 (1981-02-01), Joby
patent: 4270168 (1981-05-01), Murphy
patent: 4270715 (1981-06-01), Norton
patent: 4271505 (1981-06-01), Menot et al.
patent: 4276648 (1981-06-01), Tomlinson
patent: 4277832 (1981-07-01), Wong
patent: 4304001 (1981-12-01), Cope
patent: 4342083 (1982-07-01), Freedman
patent: 4345327 (1982-08-01), Thuy
patent: 4347563 (1982-08-01), Paredes
patent: 4347564 (1982-08-01), Sugano
patent: 4352103 (1982-09-01), Slater
patent: 4358823 (1992-11-01), McDonald
patent: 4371754 (1983-02-01), De
patent: 4375683 (1983-03-01), Wensley
patent: 4392199 (1983-07-01), Schmitter
patent: 4412280 (1983-10-01), Murphy
patent: 4424559 (1984-01-01), Lorincz
patent: 4443861 (1984-04-01), Slater
patent: 4472806 (1984-09-01), Blair
patent: 4517639 (1985-05-01), Ferrell et al.
patent: 4517673 (1985-05-01), Brown
patent: 4530045 (1985-07-01), Petroff
patent: 4532630 (1985-07-01), Corney
patent: 4562575 (1985-12-01), Townsend
patent: 4580248 (1986-04-01), Imaizumi
patent: 4583224 (1986-04-01), Ishii et al.
patent: 4610013 (1986-09-01), Long
patent: 4616312 (1986-10-01), Uebel
patent: 4617475 (1986-10-01), Reinschmidt
patent: 4622667 (1986-11-01), Yount
patent: 4631693 (1986-12-01), Neri
patent: 4634110 (1987-01-01), Julich
patent: 4635184 (1987-01-01), Schuss
patent: 4639852 (1987-01-01), Motomiya
patent: 4644538 (1987-02-01), Cooper et al.
patent: 4656475 (1987-04-01), Miller et al.
patent: 4663704 (1987-05-01), Jones
patent: 4665522 (1987-05-01), Lala
patent: 4667284 (1987-05-01), Asami
patent: 4672530 (1987-06-01), Schuss
patent: 4683105 (1987-07-01), Hager
patent: 4685053 (1987-08-01), Hattori
patent: 4692932 (1987-09-01), Denhez
patent: 4695952 (1987-09-01), Howland
patent: 4713832 (1987-12-01), Hutson
patent: 4726026 (1988-02-01), Hilford
patent: 4748594 (1988-05-01), Iida
patent: 4752869 (1988-06-01), Miller et al.
patent: 4774709 (1988-09-01), Tulplue
patent: 4794601 (1988-12-01), Kikuchi
patent: 4797884 (1989-01-01), Yalowitz
patent: 4799140 (1989-01-01), Dietz
patent: 4817091 (1989-03-01), Katzman
patent: 4823256 (1989-04-01), Bishop
patent: 4841232 (1989-06-01), Graham et al.
patent: 4858101 (1989-08-01), Stewart
patent: 4868826 (1989-09-01), Smith
patent: 4868851 (1989-09-01), Trinidad
patent: 4872106 (1989-10-01), Slater
patent: 4872213 (1989-10-01), Sebald
patent: 4897640 (1990-01-01), Rapoen
patent: 4916612 (1990-04-01), Chin et al.
patent: 4916695 (1990-04-01), Ossfeldt
patent: 4926364 (1990-05-01), Brotherton
patent: 4933940 (1990-06-01), Walter
patent: 4955020 (1990-09-01), Stone
patent: 4958270 (1990-09-01), McLaughlin
patent: 4959768 (1990-09-01), Gerhart
patent: 4965745 (1990-10-01), Economy
patent: 4967347 (1990-10-01), Smith et al.
patent: 4975931 (1990-12-01), Cosand
patent: 4995040 (1991-02-01), Best
patent: 4998194 (1991-03-01), Okamoto
patent: 5008805 (1991-04-01), Fiebig
patent: 5271023 (1993-12-01), Norman
patent: 5276823 (1994-01-01), Cutts, Jr. et al.
N. Hatafi "An Architecture and Interface for VLSI Sensors" IEEE 1988 pp. 76-79.
FIGS. 1, 2A-2B and 3A-3B as discussed in the Dow Chemical Art. Gadi Kaplan, "The X-29: Is It Coming or Going?", IEEE Spectrum, Jun. 1985, pp. 54-60.
Gary R. Stricler, "Chemical Engineering Progress", Dec. 1986, pp. 50-56. Camile.TM. Brochures on Data Acquisition and Control.
The Ninth Annual International Symposium On Fault-Tolerant Computing 22 Jun. 1979, Madison, Wisc., pp. 17-24, Jacob J. Wolf et al "Design Of A Distributed Fault-Tolerant Loop Network".
ISA Transactions, vol. 30, No. 4, 1991, Pittsburgh U.S., pp. 97-106, Tony Frederickson et al "Comparison Of Fault Tolerant Controllers Used In Safety Applications".
Proceedings of IEEE 1985 National Aerospace and Electronics Conference Naecon 1985, 24 May 1985, Dayton Conventnion Center, pp. 91-94, R. Jerome Folmar, "Distributed Memory Network; An 8 Gigabit Fiber Optic Tightly Coupled System".
Fernandez G. Paul
Glaser Robert S.
Grai Timothy J.
Hoy Robert S.
Beausoliel, Jr. Robert W.
De'cady Albert
The Dow Chemical Company
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