43 results about "Deterministic control" patented technology

A method and apparatus for providing welding-type power includes a source of welding-type power and a controller. The controller is a state-based controller, and / or a deterministic control module, connected to the controller output. The state-based control module includes, in an embodiment, software instructions and a digital processor, and / or a state transition table stored in a spreadsheet data base. The controller is responsive to a feedback circuit. One or more welding peripherals, such as a wire feeder or robot, are connected to the controller. The current state may be represented by data in a first line of a spreadsheet and a state-ending event by a second, perpendicular, line of a spreadsheet. The subsequent state is determined by the intersection of the first and second lines in another embodiment.

A self assembly step for the manufacture of an electronic component comprising, e.g., a semiconductor chip or semiconductor array or wafer comprises forming a diblock copolymer film placed on a random copolymer film substrate operatively associated with the electronic component and the diblock copolymer film wherein the surface energy of the random copolymer film is tailored by use of a photolithographic process prior to the self assembly step. By prior deterministic control over regional surface properties of the random copolymer film, domains of the diblock copolymer film form only in predefined areas. This approach offers simplified processing and a precise control of regions where domain formation occurs. Selective removal of some of the domains allows for further processing of the electronic component.

An emulation-based event-wait simulator including an application module to configure and command verification processes on a design under test (DUT). An event dispatcher is in communication with the application module to deliver commands to the DUT. A plurality of transactors are in communication with the event dispatcher to forward the commands to the DUT. A channel controller is in communication with the transactors to process and forward the commands to the DUT, wherein the channel controller also receives messages from the DUT, processes the messages, and forwards the messages to the transactors for delivery to the event dispatcher and the application module.

A method and apparatus for providing welding-type power includes a source of welding-type power and a controller. The controller is a state-based controller, and / or a deterministic control module, connected to the controller output. The state-based control module includes, in an embodiment, software instructions and a digital processor, and / or a state transition table stored in a spreadsheet data base. The controller is responsive to a feedback circuit. One or more welding peripherals, such as a wire feeder or robot, are connected to the controller. The current state may be represented by data in a first line of a spreadsheet and a state-ending event by a second, perpendicular, line of a spreadsheet. The subsequent state is determined by the intersection of the first and second lines in another embodiment.

An isochronous processor includes a state register, a functional unit, a control module, and an activation unit. The state register includes an arm buffer and an active buffer. The functional unit performs a transformation operation on the data stream in response to an active value of the control parameter obtained from the active buffer. The control module updates the arm value of the control parameter in the arm buffer in response to control instructions. The activation unit detects a load event propagating with the data stream and transfers the parameter value from the arm buffer to the active buffer in response to the load event. During this transfer, the control module is inhibited from updating the arm buffer.

An emulation-based event-wait simulator including an application module to configure and command verification processes on a design under test (DUT). An event dispatcher is in communication with the application module to deliver commands to the DUT. A plurality of transactors are in communication with the event dispatcher to forward the commands to the DUT. A channel controller is in communication with the transactors to process and forward the commands to the DUT, wherein the channel controller also receives messages from the DUT, processes the messages, and forwards the messages to the transactors for delivery to the event dispatcher and the application module.

An article of manufacture includes a first graphene layer, a second graphene layer over the first graphene layer, the second graphene layer oriented at a first interlayer twist angle with respect to the first graphene layer and bonded by interlayer covalent bonds to the first graphene layer, and a third graphene layer over the second graphene layer, the third graphene layer oriented at a second interlayer twist angle with respect to the second graphene layer and bonded by interlayer covalent bonds to the second graphene layer. A multi-layer graphene article includes at least three graphene layers, each graphene layer being oriented at an interlayer twist angle with respect to an adjacent graphene layer and bonded by interlayer covalent bonds to the adjacent graphene layer.

A wireless communication device that has one or more applications resident on a computer platform, a wireless communication interface, a display, and a user interface that, at least, appears on the display and through which a user of the wireless communication device interacts with the computer platform. The display is configured to be selectively controlled by the specific user interfaces of one or more applications resident on the computer platform, and the one or more applications and / or an arbiter that is resident on the computer platform will determine which user interface of the one or more applications resident on the computer platform controls the display based upon a predetermined criteria when the user interfaces compete for control of the display.

An emulation-based event-wait simulator including an application module to configure and command verification processes on a design under test (DUT). An event dispatcher is in communication with the application module to deliver commands to the DUT. A plurality of transactors are in communication with the event dispatcher to forward the commands to the DUT. A channel controller is in communication with the transactors to process and forward the commands to the DUT, wherein the channel controller also receives messages from the DUT, processes the messages, and forwards the messages to the transactors for delivery to the event dispatcher and the application module.

A polishing system configured to polish a lap includes a lap configured to contact a workpiece for polishing the workpiece; and a septum configured to contact the lap. The septum has an aperture formed therein. The radius of the aperture and radius the workpiece are substantially the same. The aperture and the workpiece have centers disposed at substantially the same radial distance from a center of the lap. The aperture is disposed along a first radial direction from the center of the lap, and the workpiece is disposed along a second radial direction from the center of the lap. The first and second radial directions may be opposite directions.

An automatic gain control system for a fiber optic gyroscope control loop includes an adjustable gain applied to the gyro output signal. A pilot signal is injected into the fiber optic gyroscope control loop. A compensation loop receives signals output from the control loop and also receives pilot signals. The compensation loop processes the pilot signal to produce a compensation signal that is combined with signals output from the control loop to provide a compensated fiber optic gyroscope output signal. An automatic gain control loop is connected between the compensation loop and the adjustable gain applied to the fiber optic gyroscope output signal. The automatic gain control loop includes a gain error demodulator that multiplies the compensated fiber optic gyroscope output signal and the compensation signal together to produce a gain error signal used to control the adjustable gain in order to stabilize the gain of the gyro control loop.

The invention discloses a deterministic compensation method for guide rail shape errors of an aspheric optical element processing machine tool. The method comprises the following steps that simulation analysis is carried out on guide rail stress deformation of the machine tool; the guide rail shape errors are actually measured; guide rail shape error distribution is calculated under the machining working condition; coordinates of all points on the surface of an aspheric optical element are obtained according to the aspheric equation, and grinding wheel motion control dot matrix coordinates in the grinding process are obtained in combination with an aspheric parallel grinding wheel motion control point coordinate transfer function model; the guide rail shape errors are overlaid, and grinding wheel motion control dot matrix coordinates with error correction are obtained; and grinding is carried out according to a machining track formed by the corrected grinding wheel motion control point coordinates to realize deterministic control over the guide rail shape errors. According to the method, deterministic compensation control over the machine tool guide rail shape errors in the aspheric surface forming machining process can be achieved, the influence of the guide rail shape errors and guide rail deformation caused by grinding force on the final element machining precision is eliminated, and the element forming machining precision is improved.

Improved management feedback-based controller techniques are disclosed for use in accordance with a computing system. For example, a method for managing a computing system includes the following steps. At least one measured performance metric is obtained from the computing system being managed. At least one control input value is generated based on parameters including a control error and a control deadzone such that uncertainty associated with the computing system is accounted for in accordance with the parameters. The control error is determined from a computation comprising the at least one measured performance metric and at least one performance metric goal. The control deadzone is defined such that the control input value is not generated when the control error is within the control deadzone. The control input value is sent to the computing system to effectuate achievement of the at least one performance metric goal associated with the computing system.

The present invention provides optical configurations, including resonant cavity and laser configurations, and related methods providing deterministic control of the polarization characteristics and frequencies of the radiant output of multi-longitudinal mode lasers, including multi-longitudinal mode gas phase lasers. Polarization control provided by the present invention includes preselection and stabilization of the angular orientations of the polarization planes of electromagnetic radiation generated by a multi-longitudinal mode laser, including preselection and stabilization of orthogonal linear polarization states generated by a dual-longitudinal mode gas phase laser.

The invention belongs to the technical field of an intelligent control device cooperated with a universal industrial valve, and particularly relates to an electric device for an integrated intelligent valve. The electric device is characterized by comprising a mechanical part, an electric part, instruments and a microelectronic centralized control part, wherein the instruments comprise a control instrument and a display instrument; the control instrument comprises a stroke counter, a torque limiter and an opening indicator. The electric device is an industrial intelligent product that integrates the mechanical, electric, instrument and microelectronic technology and multiple edge high and new technologies, is a control device and a power device that can form high-performance high-reliability and multiple advanced controlled electric valves with various modern industrial valves, solves the problems of nonlinearity, slow time variation, distribution parameters and uncertainty control, realizes intelligent control, and can absolutely satisfy the requirements of a modern industrial pipeline system on the various high-level automatic control of valves mounted at any place and position.

The invention provides a deterministic network system and a deterministic service transmission method, and relates to the technical field of communication. The deterministic network system comprises a deterministic management plane, a deterministic control plane and a deterministic forwarding plane, wherein the deterministic management plane is used for configuring a management strategy corresponding to a deterministic service; the deterministic control plane is used for calculating a transmission path of the deterministic service and distributing network resources according to a management strategy corresponding to the deterministic service configured by the deterministic management plane; and the deterministic forwarding plane is used for forwarding and operating a deterministic service data packet according to the management strategy corresponding to the deterministic service configured by the deterministic management plane, the transmission path of the deterministic service calculated by the deterministic control plane and the allocated network resources. According to the scheme of the invention, the problem that the current network architecture does not meet the deterministic requirement is solved.

The invention discloses a Delta robot control method based on a fuzzy set theory. The method comprises the following steps of firstly, establishing a robot dynamic model, and selecting a nonlinear friction force model representing a joint friction phenomenon of a robot; separating out uncertain terms in the robot dynamics model, and establishing a nominal compensation link in a controller according to nominal terms in the robot dynamics model; taking a control link in a positive definite diagonal matrix design controller to compensate an initial position error; according to items related to uncertainty in the robot dynamics model, constructing a function representing upper bound information of uncertain items of the system and verifying the function; designing a secondary performance indexbased on the described uncertainty information, and solving an optimal control parameter by using D-operation and fuzzy operation; and bringing the optimized control parameters into the uncertainty control items to obtain final optimized control output, and obtaining optimal control gain by optimizing the secondary performance index, so that the method is suitable for optimal control when uncertainty factors exist in the system.

The invention relates to a disturbance and uncertainty control method based on an operation type flying robot, and the method comprises the following steps: S1, constructing an operation type flying robot system composed of a four-rotor aircraft and a three-degree-of-freedom active mechanical arm, and carrying out the modeling analysis of a kinematics and dynamics model of the operation type flying robot system; S2, tracking the position and attitude of the four-rotor aircraft by adopting a geometric control method under the condition that the dynamics of the mechanical arm influences the four-rotor aircraft; S3, adopting model-free active mechanical arm control to overcome uncertainty and external interference caused by the working environment of the four-rotor aircraft and the system; S4, constructing a Lyapunov function used for controlling the operation type flying robot; and S5, based on the Lyapunov function, analyzing the stability of the rotor aircraft of the operation type flying robot system, and further controlling the operation type flying robot system to fly stably. According to the method, the control precision of the operation type flying robot under disturbance anduncertainty can be effectively improved.

The invention discloses an operation method of a gas turbine. The operation method comprises the following steps: step (1), installing a switch for expanding case communication; (2) realizing real-time deterministic control of a template of the expanding case and a controller of the main case; (3) stably executing a program according to the rate set in the control program; (4) realizing a communication function between an on-site operator station and the Micro net as well as between a remote operator station and the Micro net; and (5) detecting, adjusting and troubleshooting internal parameters of the controller. Defects of an original HMI are analyzed from the perspective of use and maintenance, specific improvement measures are provided and implemented, a good control effect is achieved,the stability of a control system is improved, the labor intensity of maintenance personnel is reduced, a fault analysis and troubleshooting system of the control system is perfected,. and better control performance and production reliability can be brought to users.

The invention discloses a control system stability analysis method, a control system stability analysis device and a computer-readable storage medium, and the core idea is as follows: by constructinga Kronercker-Lyapunov matrix, the boundary values of uncertainty parameters when a control matrix is located at stable and unstable critical positions are calculated by using the Kronercker-Lyapunov matrix, and finally the stability interval of a control system is calculated through the boundary values. According to the method, an automatic system with a feedback function is effectively controlled, and the key point is that the control system is ensured to operate in a stable interval, so that the control system can be effectively controlled all the time when the stable interval is obtained, high-quality production is realized, and the production efficiency is improved. The calculation method is simple and clear, is low in calculation complexity, and has a good help effect on the judgmentwork of the stability interval of an uncertainty control system.