213 results about "Transformation unit" patented technology

The application discloses a kind of LKJ data checking device and data comparison method, belongs to rail transit field.Solve the existing LKJ data before verification confirmation mode, it is difficult to meet the actual demand of safety production problem.It includes data processing unit connection driving condition simulation unit, communication conversion unit, data input interface unit and man-machine interaction unit;Driving condition simulation unit connects first, second LKJ monitoring recording board, according to data processing unit command, provides driving condition simulation signal to both;First LKJ monitoring recording board loads before change LKJ vehicle data, second LKJ monitoring recording board loads after change LKJ vehicle data;Communication conversion unit is connected between data processing unit second communication interface and first, second LKJ monitoring recording board;Data input interface unit provides external data to data processing unit, and man-machine interaction unit receives user input and displays information.For railway transport safety field.

The application provides an ATE device source board channel parallel test system, which comprises a load unit, a VI source board and a plurality of measured load channels, the VI source board is connected with the plurality of measured load channels through signal ports, the load unit selects single-channel independent load or multi-channel parallel load according to a control signal, switches load resistance value according to the control signal, and outputs a load end current signal, a plurality of current-voltage conversion units, input ends of the plurality of current-voltage conversion units are connected with the plurality of measured load channels respectively, and the plurality of current-voltage conversion units are used for converting the load end current signal into a load end voltage signal, a multi-channel voltage measurement unit, the multi-channel voltage measurement unit selects one or more voltage signals according to a control signal, and outputs after conditioning the single-channel signal or performing summation operation on the multi-channel signal, and a control unit, the control unit outputs the control signal and receives measurement data from the multi-channel voltage measurement unit, and the control signal is used for controlling channel selection, load switching and measurement path selection.

A circuit includes a voltage conversion unit from a power management unit library. The voltage conversion unit comprises a high-voltage domain subunit and a low-voltage domain subunit, wherein multiple high-voltage conversion modules in the high-voltage domain subunit and multiple low-voltage conversion modules in the low-voltage domain subunit are alternately connected to form a ring oscillator. The circuit includes a first control signal generation unit, a first selection output unit, a second control signal generation unit, and a second selection output unit. This invention enables efficient testing of the voltage conversion unit.

The electronic device includes a display panel comprising a display layer for displaying an image and a sensor layer for detecting an external input, a display driving circuit for receiving information about a display image from the outside and outputting a data voltage to the display layer, and a touch driving circuit for outputting a transmission signal to the sensor layer. The display driving circuit includes a conversion unit that divides information about the display image into a plurality of blocks and generates representative value data for each of the plurality of blocks. The touch driving circuit may include a judgment unit for determining a noise level of the representative value data received from the display driving circuit, a storage unit for storing a touch driving condition corresponding to the noise level, and an adjustment unit for adjusting the transmission signal based on the touch driving condition.

The application provides a power amplification circuit, a radio frequency circuit, a radio frequency chip and an electronic device. The power amplification circuit comprises a power amplification unit, a signal conversion unit and a resonance unit. The power amplification unit has an input end and an output end, can perform power amplification processing on an input signal input from the input end to form a corresponding amplified signal, and outputs the amplified signal through the output end. The input signal is a differential signal comprising a first frequency band local oscillator signal, and the amplified signal is a differential signal comprising a second frequency band interference signal and the first frequency band local oscillator signal. The signal conversion unit is connected with the output end of the power amplification unit, and the signal conversion unit is used for converting the amplified signal from the differential signal into a single-ended signal. The resonance unit is connected with the signal conversion unit and is connected between the signal conversion unit and the output end of the power amplification circuit.

A storage-computation device, a control method and device, a storage-computation system, and an electronic device are disclosed. The storage-computation device includes an input conversion circuit and a storage circuit. The input conversion circuit includes a conversion unit configured to receive a first signal and convert the first signal into a second signal output, the second signal having a first mapping relationship with the first signal. The storage circuit is in signal connection with the input conversion circuit and includes a storage unit configured to receive the second signal and convert the second signal into a third signal output based on weight data stored in the storage unit, the second signal having a second mapping relationship with the third signal. The mapping curves of the first mapping relationship and the second mapping relationship are matched. The above storage-computation device can optimize the conversion relationship of the storage unit of the storage circuit by the input conversion circuit, thereby improving the computation performance of the storage-computation device.

The application relates to the field of automobile technology and discloses an automobile chassis SOA architecture, a communication method, equipment, a medium and an automobile, wherein the automobile chassis SOA architecture comprises an SOA adaptation module and an SOA service set module; the SOA adaptation module comprises a communication conversion unit, an interface conversion unit and a judgment module; the SOA service set module comprises a first set module and a second set module; through the SOA adaptation module, SOA communication between lower bodies can be isolated and converted, various upper body SOA architectures can be adapted on the basis of the stability of the chassis SOA service and the high efficiency of development, the development cycle and cost are saved, and the automobile chassis SOA architecture provided by the application breaks the shortcomings of the binding of the SOA architecture and the EEA architecture, so that the same chassis can adapt to multiple different upper bodies.

The application discloses a low-grade heat energy recycling refrigeration and power generation integrated system and a working method thereof. The system comprises a heat energy-mechanical energy conversion unit, an elastic heat refrigeration unit, a power generation energy storage and driving unit, a mode switching mechanism and a system control module. The heat energy-mechanical energy conversion unit is used for converting low-grade heat energy into reciprocating mechanical work; the elastic heat refrigeration unit is used for generating a refrigeration effect by using mechanical energy; the power generation energy storage and driving unit is used for converting mechanical energy into electrical energy storage and converting the electrical energy into mechanical energy output; the mode switching mechanism is used for realizing coupling and disconnection among the mechanisms; and the system control module is used for controlling the running state and mode switching of each executing mechanism. The application realizes efficient step-by-step utilization of low-grade heat energy by integrating the above executing mechanisms and flexibly switching three working modes. Moreover, all auxiliary equipment is driven by the electrical energy generated by the system itself, without external power grid input, so that off-grid independent operation is realized.

The application belongs to the field of cable detection, and discloses a low-voltage cable comprehensive line searching device, which comprises a transmitter and a receiver; the transmitter comprises a power module, a modulation unit, an oscillation unit, a chopping unit, a voltage transformation unit, an isolation protection unit and an output unit; and the receiver comprises a cable identification sensor, a path detection sensor, a line searching signal detection unit, a power supply unit, a filter amplification unit, a power amplifier unit and an acoustic surface output unit. The device integrates cable path testing, cable identification and cable core line searching functions, and is lower in cost, portable and simple to operate, compared with the traditional cable path tester and cable identification instrument which are single-function devices, and can quickly solve the cable line inspection function and identification task in the transformer substation, complete the accurate cable line searching work, improve the work efficiency of the transformer substation cable inspection and replacement, and reduce or even eliminate the safety risk of the transformer substation reconstruction and expansion construction.

This application provides a smart meter based on remote calibration using BeiDou satellite signals, relating to the field of power metering instrument technology. The smart meter includes a satellite common-view synchronization unit, a voltage sampling and calibration unit, a current sampling and calibration unit, a conversion unit, and a control and communication unit. The satellite common-view synchronization unit receives BeiDou satellite signals to provide a unified time reference. The conversion unit includes a reciprocal V / F converter and a reciprocal I / F converter, realizing bidirectional conversion between voltage / current signals and frequency signals. The microcontroller switches between self-calibration mode and metering mode in response to host computer commands. In self-calibration mode, the reciprocal converter performs frequency calibration and measures and corrects the actual voltage division ratio coefficient and current division ratio coefficient. In metering mode, the voltage and current signals are dynamically corrected based on the corrected coefficients, and the electrical energy is calculated. This application achieves remote, high-precision self-calibration of the meter, with high metering accuracy, supports visualized centralized management, and significantly reduces operation and maintenance costs.

A power apparatus applied in a solid state transformer structure includes an AC-to-DC conversion unit, a first DC bus, and a plurality of bi-directional DC conversion units. First sides of the bi-directional DC conversion units are coupled to the first DC bus. Second sides of the bi-directional DC conversion units are configured to form at least one second DC bus, and the number of the at least one second DC bus is a bus number. The bi-directional DC conversion units receive a bus voltage of the first DC bus and convert the bus voltage into at least one DC voltage, or the bi-directional DC conversion units receive at least one external DC voltage and convert the at least one external DC voltage into the bus voltage.

The system appropriately generates output language signals that represent linguistic information related to the vehicle's operation. [Solution] The signal generation system comprises a first arithmetic unit configured to generate a route signal representing the planned route of a vehicle based on sensor signals output from sensors mounted on the vehicle, and a second arithmetic unit configured to generate an output language signal representing language information to be provided to the occupants by inputting an input language signal representing the content of speech by the vehicle occupants in natural language form into a trained language model. At least one of the first and second arithmetic units has a conversion unit that converts at least one of the sensor signal and the signal generated based on the sensor signal into a route data signal expressed in a format that can be input into the trained language model. The second arithmetic unit generates a route language signal relating to the planned route as an output language signal based on the route data signal.

The light path control member according to the embodiment includes a first substrate, a first electrode provided on the first substrate, a second substrate provided on the first substrate, a second electrode provided below the second substrate, and a light conversion unit provided between the first electrode and the second electrode, wherein the second substrate includes at least one hole penetrating the second substrate, and an electrode connection portion connected to a side surface of the second electrode is provided inside the hole.

The disclosure relates to a crane arm (100) comprising: a first boom (10) configured to be movably connected to a crane assembly (1) for supporting the crane arm (100); a second boom (20) movably connected to the first boom (10), a set of electrically powered actuators (50) powered by AC power signals, the set of actuators (50) comprising at least a first actuator (52) with a first electric motor (62) and a second actuator (54) with a second electric motor (64), wherein the first actuator (52) is arranged to move the first boom (10) in relation to the crane assembly (1) and the second actuator (54) is arranged to move the second boom (20) in relation to the first boom (10), wherein the crane arm (100) further comprises a power distribution assembly (70) including an interface (72) for receiving a DC power signal; and a set of spatially distributed power converting units (80) arranged to convert the DC power signal to an AC power signal for a respective electric motor (62, 64) of the set of actuators (50), wherein each power converting unit of the set of power converting units (80) is arranged adjacent to the respective electric motor (62, 64).

The application provides a multi-output DC-DC converter based on shared DC capacitor, comprising a power conversion unit, an energy sharing regulation unit and an output unit; the power conversion unit is arranged between a power supply end and the output unit, and comprises a plurality of flying capacitors and a plurality of power switching tubes, thereby forming a flying capacitor switching network; the energy sharing regulation unit is connected with the power conversion unit, and comprises a DC capacitor and a plurality of power switching tubes, thereby forming a DC capacitor switching network; the output unit comprises a plurality of inductors and a plurality of output capacitors, thereby forming an inductor-capacitor output network, and the output unit has a plurality of output ends; the charging and discharging of the flying capacitor and the charging and discharging of the inductor are controlled by controlling the on-off of the power switching tubes in the power conversion unit and the energy sharing regulation unit, so that the output ends provide energy for loads, the DC capacitor is charged and discharged to store energy and provide energy for the output ends, and independent regulation of the output ends is realized.

The utility model discloses a kind of automobile electric control system fault maintenance diagnosis equipment, including equipment main body, first detection wire harness, second detection wire harness and industrial computer, and the signal, power supply and control communication link of being equipped with intercommunication are provided to original car battery management controller, original car wire harness butt joint realizes lossless access by double detection wire harness, by relay module, signal acquisition module and analog signal output module, original car signal transmission can be collected to industrial computer, or switch to analog channel, generated analog signal is transmitted to original car controller;Power supply link is powered by original car power supply by power conversion unit;Control communication link realizes the connection of each module and industrial computer.Industrial computer analyzes signal and displays, supports instruction input. The equipment compact portable, can real-time monitoring and analog signal, accurate positioning fault point, convenient operation, adapt to multiple vehicle types, improve diagnosis efficiency and accuracy.

This invention discloses a lithium battery simulation system and method based on a power operational amplifier. The system includes a digital control unit, a signal conversion unit, a power operational amplifier unit, and a current feedback unit. The digital control unit generates a control signal based on the target lithium battery model parameters and the real-time feedback load current, which is then converted into a voltage reference signal by the signal conversion unit. The power operational amplifier unit amplifies this signal and outputs a simulated lithium battery port voltage. The current feedback unit samples the actual load current and feeds it back, forming a closed loop. This invention uses a power operational amplifier as its core, combined with digital closed-loop control, to accurately and dynamically reproduce the nonlinear external characteristics and dynamic response of lithium batteries. It has the advantages of high flexibility, programmability, safety, reliability, and scalability with multiple channels, making it suitable for the research and development and testing of battery-related equipment.

Provided is a imaging element comprising: a first semiconductor substrate having a first pixel block among a plurality of pixel blocks including a plurality of photoelectric conversion units that convert light into electric charge, and a second pixel block arranged side by side with the first pixel block in a column direction among the plurality of pixel blocks; and a second semiconductor substrate laminated together with the first semiconductor substrate, and having a first circuit block disposed at a position facing the first pixel block and a second circuit block disposed at a position facing the second pixel block, wherein the first pixel block includes a first photoelectric conversion unit among the plurality of photoelectric conversion units and a second photoelectric conversion unit among the plurality of photoelectric conversion units, the first circuit block includes a first conversion unit that converts a first signal based on the electric charge converted by the first photoelectric conversion unit into a digital signal, and the second circuit block includes a second conversion unit that converts a second signal based on the electric charge converted by the second photoelectric conversion unit into a digital signal.

A kind of wind farm multi-objective coordinated frequency optimization method and device containing flywheel energy storage, the method includes: according to the frequency characteristic requirement of power system, obtain wind storage frequency modulation power;With wind storage frequency modulation power error minimum and wind storage instability risk minimum as objective function, wind turbine speed, flywheel energy storage state of charge and the rated active power of wind turbine, flywheel energy storage respectively as constraint condition, establish multi-objective optimization model;Obtain wind storage state factor and frequency state factor, and obtain adaptive weight coefficient by fuzzy algorithm, the objective function is normalized processing, and then the multi-objective optimization model is converted into single objective optimization model;Solving single objective optimization model, obtain the optimal frequency modulation power of wind turbine and flywheel energy storage;The device includes data acquisition unit, multi-objective optimization model establishment unit, single objective optimization model conversion unit and solving unit.The present application can improve the operation stability when wind storage participates in system frequency response.

The application provides a current bias circuit and a power amplifier system, the current bias circuit comprising a detection unit, a conversion unit and a detection current injection unit, the detection unit being used for detecting a gate differential input voltage of a transistor in a power amplifier to output a first voltage and a second voltage, the first voltage comprising a static working voltage and a detection voltage, the detection voltage increasing with the increase of the differential input voltage, and the second voltage comprising a static working voltage; the conversion unit being used for converting the first voltage and the second voltage into a first current and a second current, and obtaining a difference value of the first current and the second current to obtain a detection current; and the detection current injection unit being used for injecting the detection current into the power amplifier, and being capable of adaptively adjusting the bias current of the transistor in the power amplifier, so as to expand the linear working range of the power amplifier.

A power conversion device (10) comprising: a first power conversion unit (5) that converts the DC voltage applied by a first and a second capacitor unit (40, 42) into three-phase AC voltage; a second power conversion unit (6) that converts single-phase AC voltage or three-phase AC voltage into DC voltage and applies the DC voltage to the first and the second capacitor units (40, 42); a first parallel flat conductor (30) having three plate-shaped conductors to which high potential, medium potential and low potential from the first capacitor unit (40) are applied; a second parallel flat conductor (32) having three plate-shaped conductors to which high potential, medium potential and low potential from the second capacitor unit (42) are applied;and a third parallel flat conductor (34) arranged on a side opposite the first and second capacitor units (40, 42) with respect to the first and second parallel flat conductors (30, 32).

Reduces overall power loss in the system. [Solution] The lighting system 100 comprises a first power supply unit 1 and a plurality of second power supply units 21 connected to each other via a power line PL1. The first power supply unit 1 has a first conversion unit 12 and a first control unit 13 that controls the first conversion unit 12. The first conversion unit 12 converts the AC voltage supplied from an external power supply PS1 into a first DC voltage. Each of the plurality of second power supply units 21 has a second conversion unit 211 and a second control unit 212 that controls the second conversion unit 211. The second conversion unit 211 converts the first DC voltage supplied from the first conversion unit 12 via the power line PL1 into a second DC voltage and supplies the second DC voltage to the light source 221.

A power electronic transformer includes three modules, the three modules each including: a first submodule; a second submodule; and a third submodule including a first power conversion module including N first power conversion units having input ports connected to the N output ports of the first submodule in one-to-one correspondence, and a second power conversion module including M first power conversion units having input ports connected to the M output ports of the second submodule in one-to-one correspondence, the first input port of the first submodule of the three modules has one terminal connected to three phases of a first three-phase alternating current in one-to-one correspondence, and the other terminal connected to three phases of a second three-phase alternating current in one-to-one correspondence, output ports of the N first power conversion units are connected in parallel to output ports of the M first power conversion units.

This invention provides an additively manufactured leaf-like three-source composite energy harvesting device, belonging to the field of new energy and self-powered technology. The device includes a leaf-vein-like support substrate integrally formed by 3D printing, and integrated on it a droplet triboelectric unit, a piezoelectric conversion unit, and a photovoltaic conversion unit. Liquid-guided stripes on the surface of the leaf-vein-like support substrate optimize droplet spreading. The droplet triboelectric unit captures the mechanical energy of the droplet through the triboelectric effect of the bottom electrode, the triboelectric dielectric layer, and the top electrode. The piezoelectric conversion unit converts the substrate vibration into electrical energy. The photovoltaic conversion unit efficiently collects solar energy. These three units work together to achieve synchronous or time-sharing capture of the droplet impact mechanical energy and solar energy, and output stable electrical energy through a power management circuit. This invention features a compact structure, high integration, and simple fabrication process. It can operate in all weather conditions and is suitable for long-term self-powered scenarios such as IoT terminals, distributed sensor network nodes, and wearable electronic devices.

To provide a computing device and program that can estimate road surface conditions with high accuracy for each type of vehicle. [Solution] The computing device according to this disclosure includes: an acquisition unit that acquires behavior information indicating the behavior of a first type of vehicle while it is in motion; a conversion unit that performs a process to convert the behavior information of the first type of vehicle into data corresponding to the behavior information of a second type of vehicle using a second trained model that has learned the relationship between the behavior information of the first type of vehicle and the behavior information of a second type of vehicle which is another specific type of vehicle; a determination unit that determines the road surface conditions on which the first type of vehicle is traveling by inputting the behavior information after the behavior information of the first type of vehicle has been converted into data corresponding to the behavior information of the second type of vehicle into a trained model that has been learned using the behavior information of the second type of vehicle; and an output unit that outputs the determination result of the road surface conditions.

The application discloses a vehicle fault processing method, a battery cooperative controller and a vehicle. The vehicle fault processing method is applied to the battery cooperative controller which is connected with a high-voltage battery and a low-voltage battery. The vehicle fault processing method comprises the following steps: obtaining fault diagnosis data of a plurality of function management units in the battery cooperative controller, wherein the plurality of function management units comprise a low-voltage battery management unit, a high-voltage battery management unit, a voltage conversion unit and a charging communication unit; performing fault cooperative decision on the fault diagnosis data to obtain a global fault processing scheme; and controlling the plurality of function management units to perform corresponding fault processing operations according to the global fault processing scheme. The application realizes fault information sharing and cooperative processing across subsystems, can avoid problems such as fault island and decision conflict, and improves the consistency and real-time performance of fault response.

To provide a measuring device that can measure the characteristics of a coherent receiver separately from the characteristics of a transmitter, without the need to measure the characteristics of the transmitter in advance. [Solution] The measuring device according to the present disclosure comprises: a conversion unit that converts a single-sideband signal affected by the transmission characteristics of a transmitter into a first electrical signal; a receiving unit that coherently receives the single-sideband signal; and a measuring unit that uses a second electrical signal generated by coherently receiving the first electrical signal to determine the transmission characteristics and the receiving characteristics of the receiving unit.

An energy storage system includes an array controller configured to dispatch a required power flow across a first set of battery cores of a plurality of battery cores to operate the first set of battery cores in an online mode. The array controller is configured to instruct at least one power conversion system (PCS) of a second set of battery cores to operate in a standby mode to conserve auxiliary energy. The standby mode causes disabling of HVAC equipment of the at least one PCS of the second set of battery cores; and energizing and connecting an AC bus, a DC bus, or both but not running a power conversion unit of the second set of battery cores. The array controller is further configured to monitor environmental condition data of at least one PCS of the plurality of battery cores operating in the standby mode or the online mode.