168 results about "Analog controller" patented technology

A system tests the protocols for a network containing a group of network devices. The system includes a simulation controller (110) that transmits network configuration information during the protocol testing and one or more nodes (135-1 to 135-N) that emulate a network device, receive the network configuration information from the simulation controller (110), and perform one or more operations in response thereto. The system also includes an analysis device (140) that monitors and analyzes the nodes (135-1 to 135-N) during the protocol testing.

A method for multi-objective deterioration accommodation using predictive modeling is disclosed. The method uses a simulated machine that simulates a deteriorated actual machine, and a simulated controller that simulates an actual controller. A multi-objective process is performed, based on specified control settings for the simulated controller and specified operational scenarios for the simulated machine controlled by the simulated controller, to generate a Pareto frontier-based solution space relating performance of the simulated machine to settings of the simulated controller, including adjustment to the operational scenarios to represent a deteriorated condition of the simulated machine. Control settings of the actual controller are adjusted, represented by the simulated controller, for controlling the actual machine, represented by the simulated machine, in response to a deteriorated condition of the actual machine, based on the Pareto frontier-based solution space, to maximize desirable operational conditions and minimize undesirable operational conditions while operating the actual machine in a region of the solution space defined by the Pareto frontier.

A wind turbine testing system is disclosed for testing at least a part of the nacelle components of a wind turbine system when mounted on a load carrying structure of a nacelle, said wind turbine testing system comprising a test bench being arranged to hold said load carrying structure including said nacelle components, a grid simulation system comprising a power converter system and a simulation controller being arranged to be electrically coupled to at least one of said nacelle components and being adapted for providing a simulated utility grid on the basis of a power supply and at least one control signal established by said simulation controller, and a wind simulation system comprising a wind turbine shaft rotating means arranged to be coupled to a rotating part of said generator system or a generator-related system of a nacelle or a part of a nacelle located in said test bench.

The invention relates to a device of generating simulation signals for Controller Area Network (CAN). The device in this invention simulates CAN data streams normally generated by electronic control units (ECUs) in automobiles, vehicles, boats, etc. without the presence of these ECUs. The device in this invention has a visual display of simulated signals' values. In addition, this invention reveals a remote terminal method and software. The remote terminal software in this invention can control the simulated signal via graphic user interfaces. The remote terminal software in this invention also displays the precise values of simulated signals via graphic user interfaces. Furthermore, this invention presents an advantageous method using a license identification management technique to change the functionality and features of the simulation device without any hardware modifications and without sending the device back to the device manufacturer.

A Z/2Z ladder network includes an R/2R ladder network having capacitors coupled across series resistors within the R/2R ladder network, wherein the capacitors are sized to substantially match delays from nodes within the ladder network to an output node. The Z/2Z ladder network can be implemented within a digital to analog controller (“DAC”), including higher resolution DACs, and high data rate DACs. In higher resolution DACs, and high data rate DACs, the Z/2Z ladder network is coupled through switches to corresponding current sources. The Z/2Z ladder is optionally implemented differentially.

A memory device distributed controller circuit distributes memory control functions amongst a plurality of memory controllers. A master controller receives an interpreted command and activates the appropriate slave controllers depending on the command. The slave controllers can include a data cache controller that is coupled to and controls the data cache and an analog controller that is coupled to and controls the analog voltage generation circuit. The respective controllers have appropriate software/firmware instructions that determine the response the respective controllers take in response to the received command.

The invention provides an embedded digital servo controller which is used for servo control over a hydraulic system and can realize totally digital control. The embedded digital servo controller comprises a 1553 bus (1553B) control card based on an upper computer, a 1553B coupler, a 1553B special cable and a digital servo control chip with a 1553B interface, wherein the digital servo control chip comprises a radio telephone (RT) communication unit for a 1553B, an analog/digital (A/D) acquisition unit for state parameters, a D/A unit for controlling an output, a field programmable gate array (FPGA) unit, a digital signal processing (DSP) unit and corresponding power supply and distribution systems, wherein by adoption of the FPGA unit, bus control (BC), bus management (BM) and RT functions of the 1553 bus are realized. Compared with the conventional analog controller and the conventional digital controller, the embedded digital servo controller can realize a more advanced complicated control algorithm, finishes accurate management of a servo motion system and has control reliability.

The invention discloses a device for carrying out single particle overturn effect simulation on a digital signal processor applied in space. The device comprises a simulation core module. The simulation core module concretely comprises an FPGA as a simulation controller and a PROM chip of the FPGA, and sockets used for plugging a measured chip FPGA and a PROM. The simulation controller is used for realizing readback and reconfiguration of the measured chip FPGA which is inserted in a socket through software programming, modifying configuration data of the measured chip FPGA according to a fault type needing to be injected in an operation process of the measured chip FPGA, dynamically reconfiguring the modified configuration data to the measured chip FPGA, and realizing the single particle overturn effect simulation of the measured chip FPGA. According to the device, an SRAM type FPGA is taken as a simulated measured chip and a controller, thus radiation simulation and fault injection simulation of single particle overturn are realized, functions are perfect, and the single particle overturn resistance capability of a semiconductor device can be effectively evaluated.

An autocontrol method is provided for creating a simulated model that represents an autocontrol system. The autocontrol system includes a controller, a sensor and a plant. The simulated model includes a simulated controller, a simulated sensor, and a simulated plant corresponding to the controller, the sensor, and the plant respectively. The autocontrol simulating method includes steps of: loading parameter values of the controller and the sensor, the parameter values of the controller and the sensor being used as values for the simulated controller and the simulated sensor; setting parameter values of the simulated plant; calculating values for characteristic indicators of the simulated model; and depicting characteristic curves of the simulated model based on the values for characteristic indicators. A related autocontrol method for implementing the autocontrol method is also disclosed.

The invention discloses a high-precision frequency and phase discrimination signal processing method and device in laser offset frequency locking. The method comprises the steps: enabling tunable laser and a femtosecond optical frequency comb to pass through a beat frequency signal detection unit to obtain a beat frequency signal, performing analog-digital sampling on the beat frequency signal andthen enabling the signal to enter an FPGA development board for frequency and phase discrimination processing; multiplying the beat frequency signal by a reference signal and carrying out low-pass filtering; acquiring a corresponding phase through a coordinate rotation arithmetic unit; performing scaling processing on a phase after phase unwrapping, outputting an error voltage signal to an analogPID controller through a digital-to-analog converter, enabling the analog PID controller to generate a control signal to the tunable laser for closed-loop control, locking the frequency of a beat frequency signal to a reference signal, and calculating the signal-to-noise ratio, the frequency and the amplitude of the beat frequency signal. The invention solves the problems of difficulty in improving the frequency and phase discrimination precision of the beat frequency signal and small capture range in the offset frequency locking technology of locking the laser to the optical frequency comb,and can be widely applied to the field of laser precision measurement.

The invention discloses a device for a double-pulse test of an IGBT (insulated polar bipolar transistor) driving module. The device comprises a simulation controller, an oscilloscope, a high voltage power source and a load inductor, wherein the oscilloscope, the high voltage power source and the load inductor are integrated into a double-pulse test cabinet, the interior of the simulation controller is integrated with a test main board, and the test main board is used for controlling the test process. According to the practical test condition, negative and positive bus conductive wires outputted by the simulation controller and a U/V/W three-phase leading out wire are connected with a test conducting wire of the double-pulse test cabinet. A method for the double-pulse test of the IGBT driving module comprises the following steps of sequentially testing the three phases of a power unit through a measuring procedure, evaluating the properties of the IGBT and a driving board in the to-be-tested power unit according to the test data and the wave shape displayed on the oscilloscope, and meanwhile, correcting the power unit. The device can actually capture the actual working condition of the power unit in an automobile motor controller, the test result is accurate, the properties of the power unit are optimized, and the device is not only suitable for experiments, but also suitable for the ex-factory test of batched production.

The invention discloses a brake pedal stroke calculation device and a brake pedal stroke calculation method. The brake pedal stroke calculation device comprises a brake pedal, a brake master cylinder, a brake signal switch, a pressure sensor and a pedal stroke analogue controller. The brake signal switch is used for detecting whether the brake pedal is stepped on or not and transmitting brake switch signals to the pedal stroke analogue controller, and the pressure sensor transmits acquired master cylinder pressure signals to the pedal stroke analogue controller. According to the brake switch signals and the master cylinder pressure signals, a pedal opening degree is calculated on the basis of a relational expression preset in the pedal stroke analogue controller. By the brake pedal stroke calculation device and the brake pedal stroke calculation method, adoption of pedal stroke sensors is avoided, and accordingly vehicle cost is effectively reduced.

An apparatus for producing crowd animation includes: a user-input controller for receiving from a user level of detail (LOD) of each individual in a picture of the crowd animation; a simulation controller for performing simulation of the crowd animation for a specific time period to update simulation information on each individual; and a display controller for displaying the picture of the crowd animation by using display information corresponding to the LOD of each individual, the display information being selected among the simulation information. The LOD of each individual indicates: displaying the individual with location information thereof only; displaying the individual with the location and model information thereof; or displaying the individual with the location, model and motion information thereof. The simulation information includes location information, model information and motion information of each individual.

In certain embodiments, the present invention includes a system for generator set control comprising a controller and two or more power generators configured to supply power to an electrical load. The two or more power generators are coupled to the controller, where the controller is configured to synchronize the two or more power generators with one another. In some embodiments, the controller is configured to automatically shut off or turn on at least one of the two or more power generators in response to the electrical load to increase the overall power efficiency of the system. In further embodiments, the system is configured to operate in ambient temperature environments ranging from −55° C. to +125° C. The controller can be a digital controller, analog controller, or a combination therewith. Furthermore, the system can be configured to operate in a micro-grid array.

An electronic circuit for adjusting a property of an input signal of a non-linear element is disclosed. A detector detects a strength of the input signal. An analog controller forms a control signal as a piecewise approximation of a non-linear dependency between the property and the strength of the input signal detected by the detector. An adjusting circuit adjusts the property of the input signal according to the control signal from a controller.