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WO/2000/028390A1 |
The invention relates to a method for monitoring the output function of an output unit (9), especially of a binary output unit of a safety-oriented programmable control system which controls actuators (11) of an external technical proces...
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WO/2000/019286A1 |
The invention relates to a device (1) for controlling and/or monitoring external technical processes, notably a device for use in conjunction with security-oriented control units. The device comprises an input function, an output functio...
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WO/2000/017888A1 |
A system and method for interfacing with a nuclear power plant's digital plant protection system activates emergency response devices when necessary. Two redundant bistable processors in each of four logic channels determine whether a pa...
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WO1999060449A9 |
A self-validating output module in a control system includes a current detector (240) and an operating component having at least two states. When the operating component is in the first state, current is directed away from a current dete...
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WO/2000/011524A1 |
A device in a process control system (2) includes an electrical element (210) which has a resistance (212). Self heating circuitry (208) coupled to the element (210) provides a self heating signal related to the resistance (212) of the e...
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WO/2000/010059A1 |
An apparatus and method is disclosed for detecting, identifying, and classifying faults occurring in sensors measuring a process. If faults are identified in one or more sensors, the apparatus and method provide replacement values for th...
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WO/2000/008533A1 |
The invention relates to a method for commissioning an installation (40) of the primary industry, according to which said installation (40) of the primary industry comprises a control system (2) which is provided with regulation and cont...
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WO/2000/005630A1 |
A fail-safe controller used for easily write and change an arithmetic operation program and improving the productivity of a system. A fail-safe controller (1) includes a control arithmetic unit (10) and an output unit (11). The control a...
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WO/1999/067110A1 |
According to the invention, a passenger protection device of an automobile is triggered when a testable acceleration switch (5) supplies a switch signal (ss) and an electrically controlled switching means (3) is actuated by a control cir...
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WO/1999/065754A1 |
A multiple system processor adaptable to a large railroad station and having a short execution time without marring the safety and increasing the wiring between the multiple system processor and a controller. The multiple system processo...
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WO/1999/064736A1 |
The present invention relates to control systems intended for use in complex technical objects that operate in a wide range of modes and loads, wherein said invention can be used in the control systems of jet engines, power-plant turbine...
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WO/1999/064938A1 |
The invention relates to a control device for a machine, system, or apparatus, especially a fuel cell system, comprising a first control unit (S1) and a second control unit (S2) which exchanges signals with the first control unit (S1). S...
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WO/1999/060451A1 |
A simplified fault logic accommodation control which utilizes fuzzy logic to assist in calculating a preselected weighted average of the values of two redundant sensors (A, B) that are sensing the same parameter. A synthesized, third, pr...
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WO/1999/058360A1 |
The invention relates to a motor vehicle control device with a driver-activated control element predetermining engine operation and a speed regulating stage (5) and/or limiting stage (6) in order to regulate or limit driving speed by mea...
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WO/1999/056186A1 |
A display (3), conventionally used for only displaying a control state of a control unit (2), is used as a main unit for data communication, and performs conversion of the communication protocol governing data communication between contr...
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WO1999036714A9 |
A voting solenoid arrangement (10) is provided which operates in a "2 out of 3" manner to provide relatively high safety, low spurious tripping and a relatively low installation cost, while also enabling on-line testing of each solenoid ...
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WO/1999/050105A1 |
The invention relates to a control method for an occupant protection system, especially in motor vehicles, and a module for the same. Preart safety systems, control methods or modules thereof are disadvantageous in that they can be trigg...
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WO/1999/049369A1 |
A device (40) in the process control system (2) includes a sensor input receiving a sensor signal. The sensor signal comprises a process variable signal and a residual sensor signal related to sensor operation. Diagnostic circuitry (12) ...
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WO/1999/031955A2 |
Methods and associated apparatus for automatically synchronizing the operating code between a plurality of controllers (118.1, 118.2). In a first embodiment after the spare controller (118.2) is swapped into the storage subsystem, if the...
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WO/1999/032947A1 |
There is disclosed a system and method for maintaining data coherency between a primary process controller operable to execute process control tasks and a backup process controller operable to replace the primary process controller upon ...
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WO/1999/027428A1 |
The invention relates to a method for determining the availability (V) of a technical facility (1), especially a nuclear power station, containing systems (S) which are sub-divided into hierarchically consecutive system levels (A, B, C)....
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WO/1999/026820A1 |
The invention relates to an electromechanical brake system, especially for motor vehicles, comprising a pedal simulator (1) and brake modules (7). A central module (6) is also provided. The connection between said modules can be provided...
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WO/1999/026822A1 |
The invention relates to an electromechanical brake system, especially for motor vehicles, having a pedal module (1) and at least two brake modules (7). A central module (6) can also be provided. The connection between the above-mentione...
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WO/1999/022277A1 |
The operating control device (80) can be used on equipment such as hand tools, electronics or fuel pumps. An input device (12) enables the input of user access codes and a readout panel monitors the equipment status. A control member is ...
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WO/1999/021066A1 |
The invention relates to the maintenance of safety devices. Valves and similar automatic mechanical safety devices normally maintaining a fixed position are in danger of getting stuck, and consequently may not be fully operable in an eme...
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WO/1999/019781A1 |
It is known that digital controllers of numeric control machine tools are carried out by means of two-channels in order to realize a reliable control. According to the invention, the device now also enables a reliable monitoring of the o...
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WO1997049011A9 |
A system (10) and method for monitoring an industrial process and/or industrial data source (10). The system (10) includes a time correlation module (20), a training module (30), a system state estimation module (40) and a pattern recogn...
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WO1998050830A9 |
The present invention includes a system for configuring component installation and operation of residential and commercial control and automation systems. In particular, the present invention includes a tiered configurable system for ins...
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WO/1999/006892A1 |
A method and system for monitoring the operational condition of a machine is disclosed. The system includes: a test probe configured to be coupled to the machine for measuring an operational parameter of the machine and for outputting a ...
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WO/1999/004324A1 |
The inventive protection circuit has a control element ($g(m)c) which triggers an actuating member (V) with a trigger signal (V1). During normal operation, said control element ($g(m)c) periodically emits a start/reset signal at predeter...
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WO/1999/000593A1 |
DEe present invention relates to a device for the recognition of a defective signal, wherein a single measuring value is detected using two different signal-generation means. An error is recognised when the absolute values of the filtere...
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WO/1999/000547A1 |
The invention relates to a control and/or regulating system for a machine used for producing a fiber web, in particular a paper and/or cardboard web. This system comprises several actuators (A1-A6), each associated to at least one final ...
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WO/1998/057238A2 |
A safety or protection system includes a plurality of divisions of first signals (6, 8, 10); a plurality of safety or protection subsystems (12, 14, 16, 18, 20) each of which receives a corresponding one of the divisions of first signals...
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WO/1998/056631A1 |
The invention relates to a device for the reliable analysis of measurement results obtained by sensing, characterized in that it makes isochronous use of several independent measuring channels (10, 11) with several independent measuremen...
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WO/1998/056009A1 |
A digital plant protection system for use in nuclear power plants of the pressurized water type includes cross-connected sensed-parameter processing channels (CH-A, CH-B, CH-C, CH-D) that provide a suitably conditioned digital value to a...
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WO/1998/053374A1 |
The invention relates to a microprocessor system for safety-critical control systems, which is provided with three central processing units (1, 2, 3) jointly arranged on a chip and which process the same program. The system also comprise...
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WO/1998/052108A1 |
A data transfer apparatus wherein a double switch system is adopted for safety. Two pieces of data inputted through a switch to a DI/DO control circuit (2) for peripheral devices are converted into serial data by circuits (Ar, Br), and t...
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WO/1998/048326A1 |
The invention relates to a microprocessor system for safety-critical control systems. The inventive microprocessor system is equipped with at least three central units (1, 2, 3). Said units are arranged preferably on a single chip and ru...
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WO/1998/047672A1 |
An emergency stop switching mechanism for robots which is capable of assuming an emergency stop position when an external operating force is released and a strong external operating force is applied. At the start of operation of a robot,...
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WO/1998/045764A1 |
The invention relates to a safety switch comprising a plurality of actuating systems, each having a separate actuator (1), a read head (3) and an actuator evaluation device (5) connected to said read head (3), in addition to a bus (7) to...
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WO/1998/044469A2 |
The invention relates to a security control system and to a method for the operation of such a system comprising a plurality of interconnected centralized or decentralized stations provided with inputs and/or outputs. In order to dischar...
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WO/1998/044399A2 |
The invention relates to a method for programming a safety control system with centralized and/or decentralized stations. So as to simplify programming while guaranteeing greater security, safety-oriented control-technical rules for conn...
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WO/1998/038577A1 |
The invention relates to a homogeneously and redundantly built electronic device (EG) with at least two channels, especially a two-channel, homogeneously and redundantly built programmable central unit of a controller with at least one c...
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WO/1998/038664A1 |
The invention relates to a modular safety switch (1) which is so designed that various signaling devices (28b) belonging to a set of connectable signaling devices (28b) can be connected thereto. To do this, a typical combination of used ...
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WO/1998/020469A1 |
A transmitter (100) in a process control system includes a resistance sensor (110) sensing a process variable and providing a sensor output. Sensor monitoring circuitry (116) coupled to the sensor (110) provides a secondary signal relate...
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WO/1998/005540A1 |
The invention concerns a microprocessor arrangement for a vehicle-control system, the microprocessor arrangement comprising a plurality of microprocessor systems (4, 5, 6) which are interconnected by bus systems (1, 2, 3) and incorporate...
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WO/1997/050024A1 |
A synchronisation process for an automation system (1) of redundant construction consisting of at least two partial systems (2, 2') which, to control a process, perform functionally identical sequences of machine commands (MP) which have...
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WO/1997/049020A2 |
An automatic self-testing system includes a plurality of sensor processing channels (100A-100D) or paths each having a sensor (102A-102D) for providing, either directly or indirectly, a digital value to a comparator (106A-106D) which com...
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WO/1997/048026A2 |
A method and a valve apparatus for surveying the condition of a control valve. The position of the valve (101) is adjusted by means of an actuator (103) controlled by an electropneumatic positioner (104) and operated by means of pressure...
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WO/1997/046834A1 |
The ventilation system comprises a master controller (10) connected by communication links to slave controllers (12, 14, 16, 18) that regulate the operation of individual fan units (20, 22, 24, 26). The master controller (10) transmits t...
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