1303 results about "Transformation unit" patented technology

The invention relates to the technical field of wireless communication, in particular to a wireless communication network system and method for intelligently fusing a multi-mode heterogeneous network. Comprising a multi-mode access unit; a protocol compatibility and conversion unit; the heterogeneous network intelligent fusion unit completes cross-network dynamic flow collaboration and resource optimization decision through cross-layer feature association mining, service-network two-dimensional weight calibration and a double-closed-loop feedback optimization mechanism, generates a resource scheduling instruction and transmits the resource scheduling instruction to the intelligent scheduling and resource control unit; an intelligent scheduling and resource control unit; and a system control and cooperation unit. According to the invention, the service-network two-dimensional dynamic fusion weight is constructed through the intelligent fusion unit of the heterogeneous network, and bandwidth, frequency spectrum and power resources are allocated according to the priority and margin balance principle in combination with the intelligent scheduling unit, so that the problem of insufficient two-dimensional coordination of resource scheduling is solved, the resource scheduling is matched with the service demand and the network load, and the resource scheduling efficiency is improved. And resource waste or incapability of meeting business requirements is avoided.

A multiple input converter for outputting power from AC power or a battery to positive and negative direct current (DC) buses is provided. The multiple input converter includes at least one bridge arm unit and a bidirectional DC-DC conversion unit. The bridge arm unit corresponds to one phase of the alternating current (AC) power and includes an upper and lower bridge arms that can independently form a two-level converter. In a battery mode, the upper and lower bridge arms discharge power from the rechargeable battery to the positive and negative DC buses, and the bidirectional DC-DC conversion unit discharges power from the rechargeable battery to the positive and negative DC buses or balances voltages of the positive and negative DC buses. In a mains mode, the bridge arm units are connected to the AC power. The bidirectional DC-DC conversion unit determine whether to charge or discharge according to load conditions.

The invention discloses a communication system for realizing bidirectional protocol compatibility of an upper computer and a main control module, which comprises a protocol bridging module, an upper computer communication interface module and an inter-module communication interface module, and is characterized in that the protocol bridging module is used for realizing bidirectional analysis and packaging of an upper computer protocol and an internal standard protocol; the protocol bridging module adopts an independent MCU (Microprogrammed Control Unit) processing unit, integrates a protocol analysis unit, a mapping conversion unit and a data encapsulation unit, and is internally provided with a protocol mapping table for the mapping conversion unit and the data encapsulation unit to call; the upper computer communication interface module is used for realizing communication connection between the protocol bridging module and an upper computer, integrates various physical interfaces, and adopts a level and protocol adaptive design to realize seamless butt joint with different types of upper computers; and the inter-module communication interface module is used for realizing communication connection between the protocol bridging module and the main control module, integrates various standard interfaces, and adopts an interface automatic adaptation design to be compatible with interface specifications of different main control modules.

The invention belongs to the technical field of medical robots, and discloses a surgical robot accurate pose real-time registration method and system based on multi-sensor fusion, and the system comprises a multi-source sensing collection assembly; a time-space calibration mechanism; fusing a resolving platform and an exception elimination platform; a deformation sensing and dynamic compensation device; and a registration result closed-loop feedback unit. According to the invention, a multi-source sensing acquisition assembly and a synchronous control board are integrated on a hardware level, a nanosecond timestamp is generated by using a high-precision clock driven by an onboard crystal oscillator, and a cross-correlation delay calculation chip is combined to execute a cross-correlation function method delay estimation formula, so that microsecond-level accurate correction of delay amount among sensing sources is realized; the coordinate transformation unit automatically selects a matched calibration matrix according to a correction result, multi-source data such as optical positioning, inertial measurement, a torque sensor, ultrasonic or electromagnetic positioning and the like are unified to a global rectangular coordinate system, and the structure can effectively ensure the consistency of time and space references of data output by different sensors.

The invention relates to the technical field of high-voltage VI modules, and particularly discloses a high-voltage VI source module for SOC testing, which comprises an output stage module, a sampling module and a control and conversion module, the output stage module is constructed by adopting discrete high-voltage power devices, supports four-quadrant operation, and can realize flexible output and absorption of voltage and current; the sampling module is composed of a voltage sampling unit and a current sampling unit which respectively monitor voltage and current signals of the output stage in real time. The control and conversion module comprises a control unit and a digital-to-analog conversion unit; the digital-to-analog conversion unit is responsible for converting a digital control signal into an analog control signal to drive the output stage and converting analog voltage and current signals collected by the sampling module into digital feedback signals; and the control unit receives the digital feedback signals and adjusts the output of the digital-to-analog conversion unit in real time through a closed-loop control algorithm, so that high-precision and high-stability control on the output-stage voltage or current is realized.

The invention discloses a formation and capacity grading parallel detection system based on a high-voltage direct-current bus. A press device comprises a direct-current switch and at least one set of pull-out type charging and discharging probe module. And the input end of the direct-current switch is connected with the output end of the PCS equipment. Each charging and discharging probe module adopts a pull-out structure and comprises a mechanical frame, and a high-voltage direct-current bus, a bidirectional conversion module and a probe assembly which are integrally mounted in the mechanical frame; the high-voltage direct-current bus input end is connected with the direct-current switch output end; the bidirectional conversion module comprises two stages of conversion units; the first conversion unit is used for reducing the first voltage of the high-voltage direct-current bus into the second voltage or reversely increasing the voltage; the second conversion unit reduces the second voltage to the voltage required by charging and discharging of the battery or boosts the second voltage; the probe assembly is connected to the output end of the second conversion unit. The system is compact in structure, high in charging and discharging efficiency and convenient to maintain, and cables are saved.

The invention relates to an alternating-current and direct-current integrated power supply system and a control method, a power conversion unit comprises a parallel high-frequency rectification module, an inversion module and a communication power supply module, and a direct-current side is connected in parallel to a common direct-current bus; the energy storage unit realizes energy interaction between a storage battery pack and a bus through a bidirectional DC / DC converter, and a matched health monitoring circuit acquires internal resistance, temperature and voltage data in real time; the dynamic voltage support unit is formed by connecting a filter network and a transient suppression device in series and is directly connected with a bus to suppress voltage fluctuation caused by load abrupt change; the electromagnetic protection unit integrates an input-stage surge protector, a cabinet body grounding copper bar and an anti-interference device, so that the electromagnetic compatibility of the system is guaranteed; the intelligent control unit is combined with the communication bus through the main controller, and the functions of multi-mode power supply switching, energy storage unit temperature compensation charging and cooperative fault protection are achieved. The system meets the AC / DC load hybrid power supply requirement through the modular design and the cooperative control strategy, and improves the reliability and adaptability of the power supply system.

The invention discloses a building material transportation scheduling method based on edge calculation, and the method comprises the following steps: S1, deploying an edge sensing terminal, and collecting and standardizing multi-source state data; s2, detecting an abnormal event at an edge node and outputting event information; s3, inputting the event information into a disturbance attention affine transformation unit to generate scheduling input; s4, generating and broadcasting a local scheduling scheme by adopting a distributed asynchronous game mechanism; s5, establishing a multi-order memory pool, recording data and schemes, and retrieving similar scene adjustment parameters; and S6, the scheme and the optimization result are uploaded to the cloud, and the edge node is optimized through strategy return. According to the invention, through edge calculation, multi-source data fusion and a distributed cooperative scheduling mechanism, real-time anomaly perception and adaptive optimization scheduling in a building material transportation process are realized.

A WXC device includes: input ports; output ports; a wavelength conversion unit including input-side WSSes, wavelength converters, and output-side WSSes; and a controller. The input-side WSSes each output an optical signal input from a corresponding one of the input ports to a selected one of the wavelength converters. The wavelength converters each convert a wavelength band of the optical signal input from each of the input-side WSSes into another wavelength band and output the converted optical signal to a respective one of the output-side WSSes. The output-side WSSes each perform route switching on the optical signal input from the respective one of the wavelength converters toward a selected one of the output ports. The controller manages, for each of the wavelength converters, whether the wavelength converter is unused and controls the input-side WSSes each to output the input optical signal to one of the unused wavelength converters.

A photoelectric conversion apparatus includes a pixel to output a pixel signal, an AD conversion unit to acquire a digital value corresponding to the pixel signal by using a ramp signal. The AD conversion unit includes an amplification circuit, an amplification factor switching circuit, a ramp signal switching circuit, a comparison circuit, and a memory unit, and the AD conversion unit performs analog-to-digital conversion by using the voltage change rate of the ramp signal and the amplification factor of the amplification circuit that are selected using the first decision value and the second decision value.

The invention belongs to the field of switch chips, and relates to a hardware and software combined PCIE address translation and networking design device and method, the hardware and software combined PCIE address translation and networking design device comprises an address translation unit, a built-in CPU and firmware and a TLP transceiving unit, the address translation unit comprises a control register and an address or BDF translation module for implementing TLP address or BDF translation; the firmware is used for completing the simulation of the iEP, and the simulation method is that software is used for completing the response to a received configuration request TLP, so that a DSP and an EP are simulated; and the TLP receiving and transmitting unit connects the built-in CPU to a switching network, so that the built-in CPU receives and transmits a TLP data packet. According to the PCIe switching chip, a tree topology structure of a traditional PCIe switching chip can be broken through, and any needed network topology structure can be flexibly connected through software configuration; a plurality of hosts and devices can be connected at any port as required; the required iEP is realized by using internal firmware, the function of the iEP can be realized by more flexible programming, and the design cost is reduced compared with the method for realizing the iEP by using hardware.

The invention relates to the technical field of new energy battery testing, and discloses a new energy battery comprehensive test energy management system and method, and the system comprises a battery testing unit, an energy conversion unit, an energy storage unit, an intelligent control unit, and a data monitoring and analysis unit. The data monitoring and analyzing unit is connected with the battery testing unit, the energy conversion unit, the energy storage unit and the intelligent control unit and used for monitoring operation data of all the units in real time, analyzing the data and providing a basis for scheduling decision making of the intelligent control unit. According to the invention, recycling of redundant electric energy in a battery testing process is realized, energy waste is greatly reduced, testing cost is reduced, energy utilization efficiency is improved, and effectiveness of energy recycling is verified.

The invention discloses a wide-frequency three-phase phase-locked loop method, which relates to the technical field of three-phase phase-locked loops and comprises an alternating-current signal acquisition and coordinate transformation unit, a double-reduced-order generalized integrator, a frequency-locked loop frequency estimation unit, a double-second-order generalized integrator, a parallel delay signal cancellation filtering module and a phase-locked loop phase estimation unit. A three-phase power grid voltage signal is input into the alternating current signal acquisition and coordinate conversion unit to obtain a two-phase voltage under a static coordinate system; the double-reduced-order generalized integrator and frequency-locked loop frequency estimation unit outputs a three-phase power grid frequency estimation value and carries out feedforward; and the bisecond-order generalized integrator outputs a three-phase power grid positive sequence component, inputs the three-phase power grid positive sequence component into the parallel delay signal cancellation filtering module to filter out a higher harmonic component, and then inputs the three-phase power grid positive sequence component into the phase-locked loop phase estimation unit to output a three-phase power grid phase estimation value. The method can effectively solve the problem that a traditional phase-locked loop is difficult to lock the phase quickly and accurately when the ship microgrid frequency fluctuates in a large range, and improves the phase-locking precision and dynamic performance.

The invention relates to the technical field of intelligent sensing of bridges, in particular to an energy collection device arranged in a bridge expansion joint, a design method and a bridge expansion joint monitoring mechanism, and the device comprises a conversion unit which is arranged in a bridge expansion joint structure, captures the strain of the structure after the structure is stressed, and generates an alternating flexural electric signal; the substrate layer is positioned between the conversion unit and the bridge expansion joint and is used for adjusting the strain distribution of the conversion unit; the rectification unit is integrated with an impedance matching circuit, is connected with the conversion unit, converts the alternating deflection electric signal into direct current, and transmits the direct current to the energy storage unit; compared with the prior art, the monitoring mechanism for the bridge expansion joint has the advantages that a self-energy-supply structure based on the flexoelectric effect is arranged in the device, an external power source is not needed, the wiring and maintenance cost is remarkably reduced, meanwhile, millimeter-level displacement distinguishing and real-time structure health assessment are achieved through the monitoring unit, and the monitoring accuracy is improved. And the structural safety of the bridge expansion joint is ensured.

A charging system includes a first device; a second device; and a power adjustment device including a DC-to-DC conversion unit; and a micro-control unit for receiving a charging instruction, a first power information of the first device and a second power information of the second device and performing the following steps: controlling the DC-to-DC conversion unit to convert a first supply current received by the first device into a first charging current according to the first power information and the second power information when the charging instruction instructs the first device to charge the second device; and controlling the DC-to-DC conversion unit to convert a second supply current received by the second device into a second charging current according to the first power information and the second power information when the charging instruction instructs the second device to charge the first device.

Disclosed in this application are a vehicle, a charging system and a charging method therefor, and a computer storage medium. The charging system for the vehicle includes: a plurality of charging interfaces, configured to connect to a plurality of charging piles; a detection unit, configured to detect connection states of the plurality of charging interfaces; a communication conversion unit, configured to perform interconversion between a first communication message and a second communication message; and a controller, configured to communicate with a corresponding charging pile through the first communication message and / or communicate with a corresponding charging pile through the communication conversion unit based on the connection states of the plurality of charging interfaces, to obtain corresponding charging information, where the communication conversion unit communicates with the controller through the second communication message, and the communication conversion unit communicates with the corresponding charging pile through the first communication message.

The embodiment of the invention provides a receiving front-end amplifier, a signal amplification method and network equipment. The receiving front-end amplifier comprises a current mode logic unit which is used for converting a first single-ended input signal into a differential signal according to a reference voltage locally generated by the receiving front-end amplifier; the negative capacitance unit is used for expanding the bandwidth of the differential signal; and the conversion unit is used for converting the differential signal after bandwidth expansion into a second single-ended signal and outputting the second single-ended signal. According to the embodiment of the invention, based on the current mode logic, negative capacitance and differential-to-single-ended three-stage circuit design, the problems of insufficient bandwidth, reduced signal quality and over-high power consumption during single-ended signal input can be effectively solved, and the effect of enhancing the high-speed signal processing performance is achieved.

The invention provides a monolithic integration multi-channel fin-shaped gate HEMT and a groove SBD and a preparation method thereof. The monolithic integration multi-channel fin-shaped gate HEMT comprises a substrate layer, a multi-channel fin-shaped gate HEMT and a groove anode SBD, the multi-channel fin-shaped gate HEMT comprises a first buffer layer, a first barrier layer, a first channel layer, a p-GaN layer, a source electrode, a drain electrode, a dielectric layer, a gate electrode and a plurality of grooves, wherein the first barrier layer and the first channel layer are stacked repeatedly. The plurality of grooves are arranged at intervals along the parallel direction from the source electrode to the drain electrode, are arranged in the middle region of the p-GaN layer at intervals, and sequentially penetrate through the p-GaN layer, the first channel layer and the first barrier layer to enter the first buffer layer; the trench anode SBD includes a second buffer layer, a second barrier layer and a second channel layer repeatedly stacked, a cathode, an anode, and an anode trench. Therefore, reverse conduction loss can be remarkably reduced, parasitic parameters are reduced, the size of the power conversion unit is reduced, the overall cost of a product is reduced, and the stability and reliability of a system are improved.

An embodiment of this application provides an energy storage system and an energy storage system control method. The energy storage system includes N battery clusters and N-X first conversion units, where N is a positive integer greater than 1 and X is a positive integer less than N. A first side of each of N-X first conversion units is connected in series to a power transmission circuit of one of N-X first battery clusters among the N battery clusters, so as to combine with a corresponding first battery cluster to form a series branch circuit. The N-X series branch circuits are connected in parallel to X second battery clusters in the N battery clusters.

The invention relates to the technical field of energy storage system intelligent control, and particularly discloses an energy storage system intelligent control system and method suitable for multiple power consumption scenarios, and the system comprises a physical layer, an edge sensing layer, a digital twinborn layer, a block chain transaction layer, and a quantum optimization layer. The physical layer comprises an energy storage equipment unit, a power conversion unit and a power regulation and control unit; the edge sensing layer comprises an edge computing node, a sensor network and an edge communication module; the digital twinborn layer comprises a twinborn model construction unit, a data fusion unit and a state prediction unit. Through comprehensive application of energy block chain consensus entropy analysis, quantum-edge consensus entropy subtraction coefficient analysis and quantum-edge co-evolution coefficient analysis, the energy storage system realizes full-process intelligent control from data acquisition, model construction, strategy optimization to execution feedback, and the reliability, economy and adaptability of the system are significantly improved.

The invention relates to a mobile storage and charging all-in-one machine and an application method, the mobile storage and charging all-in-one machine comprises a storage and charging machine and a mobile station, the storage and charging machine is internally provided with an energy storage bin, an AC power distribution bin, a DC power distribution bin and an energy management system, and the energy storage bin is internally provided with a liquid-cooled battery pack; a PCS and an alternating current conversion device are arranged in the alternating current distribution bin, a power conversion unit and a direct current conversion device are arranged in the direct current distribution bin, a charging device is arranged on the outer wall of the direct current distribution bin, and the storage and charging machine is detachably installed on the moving table. The energy management system is in signal connection with the liquid-cooled battery pack, the PCS, the power conversion unit, the direct-current conversion equipment and the mobile station; the charging device outputs direct current outwards or receives an external direct current power supply to charge the liquid-cooled battery pack, and the alternating current conversion device outputs alternating current outwards or receives an external alternating current power supply to charge the liquid-cooled battery pack. The invention aims to provide the mobile storage and charging all-in-one machine which is low in cost, wide in application range, sufficient in electric energy, high in maneuverability, intelligent and capable of being remotely regulated and controlled and the application method.

The invention discloses an intelligent switching control electrician practical training identification device, which belongs to the technical field of electrical detection and comprises a practical training platform, an operation panel, an electrical carrier plate and a built-in PLC (Programmable Logic Controller), the system integrates power input, a first conversion unit composed of a first isolation transformer and a first contactor, a second conversion unit composed of a second isolation transformer and a second contactor, a control unit, a data storage module, an operation input unit, a feedback unit and a load output unit. A dual-safety interlocking structure combining software interlocking and contactor hardware interlocking is realized through a PLC, and two paths of power outputs cannot be switched on at the same time. The device has the functions of intelligent mode switching, real-time voltage monitoring, fusing and sudden stop dual protection, operation state feedback and practical training data storage, meets industrial-grade and safety-grade practical training requirements, is compact in structure and high in safety, supports closed-loop control and data tracing, and is suitable for modern electrician skill training and intelligent examination and identification.

The invention discloses a load control method and system for mobile energy storage equipment, a medium and a product, and the method comprises the steps: obtaining the motion state data and environment state data of target mobile energy storage equipment; performing second-order differential operation on the real-time speed to obtain a jerk value; generating a power demand impact sequence; based on the real-time polarization impedance and the real-time open-circuit voltage, calculating a maximum pulse discharge power threshold value under the condition that a preset under-voltage protection threshold value is not triggered; when the maximum power demand value in the power demand impact sequence is greater than the maximum pulse discharge power threshold, determining that the target mobile energy storage equipment has a power supply drop risk in a preset load prediction time window; calculating an energy gap prediction sequence based on waveform integration of the power demand impact sequence; and generating a feed-forward compensation instruction based on the energy gap prediction sequence, and controlling an auxiliary power conversion unit in the target mobile energy storage equipment to execute the feed-forward compensation instruction. And the accuracy of load control is improved.

An embodiment of the present disclosure provides a display device including: a display panel including pixels; and a data driver connected to the pixels through data lines, wherein the data driver includes a latch unit that receives first image data synchronized with a horizontal synchronization signal and outputs the first image data in response to a first latch clock signal generated at a time that is delayed from a signal at which the horizontal synchronization signal is generated; a digital-to-analog converting unit that generates data voltages corresponding to the first image data using gamma voltages; and an output buffering unit that outputs the data voltages corresponding to the first image data to some of the data lines in response to a first switching control signal generated at a time that is delayed from a time at which the horizontal synchronization signal is generated.

The invention relates to the technical field of electric power metering online monitoring, in particular to a portable verification device and method.The device comprises a current source, a merging module, an A / D conversion unit and a difference adding module of the portable verification device, the current source outputs four paths of current signals, the merging module merges the third current signal and the fourth current signal to generate a stable current signal, and the A / D conversion unit outputs the stable current signal to the difference adding module; the A / D conversion unit converts a related current signal into a digital signal, and the difference adding module adds a digital differential to the stable current signal; according to the verification method, the current source is controlled to output signals, related parameters are calculated after combination, A / D conversion and difference addition processing, and errors are obtained by comparing the related parameters with data of a verified device. According to the invention, accurate verification of the online monitoring device of the current transformer can be realized, and the verification convenience and reliability are improved.

The invention provides a hardware description language code generation system based on TypeScript, comprising a configuration conversion unit, a type verification unit, a parameter calculation unit, an intermediate representation construction unit and a code generation unit, through a type system of TypeScript, type inconformity can be effectively captured in a coding stage, illegal configuration with parameter type inconformity is effectively intercepted, and the code generation efficiency is improved. Therefore, the design error risk and the later debugging cost are reduced; meanwhile, based on the object-oriented characteristic of the TypeScript, the target hardware description language code with the structured hierarchy can be generated, so that the readability of the target hardware description language code is high, and then the maintainability and development efficiency of hardware design are improved.

The utility model discloses a charging device with a data line self-checking function. The charging device comprises a power supply unit, a first conversion unit, a bidirectional protocol control unit, a second conversion unit, a switching unit, a first interface and a second interface, the power supply unit is respectively connected with the first conversion unit and the second conversion unit, and the first conversion unit is connected with the first interface; the first conversion unit and the second conversion unit are respectively connected with the bidirectional protocol control unit; the bidirectional protocol control unit is respectively connected with the first interface and the second interface; two ends of the data line are respectively connected with the first interface and the second interface; and the switching unit is respectively connected with the bidirectional protocol control unit, the second conversion unit and the second interface. By implementing the device provided by the utility model, the self-inspection of the wire harness in charging connection can be realized.

To provide a hitch angle estimation device capable of properly estimating a trailer hitch angle in world coordinates.SOLUTION: A hitch angle estimation device 16 includes: a conversion unit 3D that performs a transformation from the view coordinate system to the world coordinate system for the sequence of points representing the bottom of the towbar and trailer on the image taken by camera 11 mounted on vehicle 1 towing the trailer via the towbar; a straight fitting unit 3E that performs a line fit to the sequence of points that represent the bottom of the towbar and trailer after the transformation has been performed based on the line indicating the tow bar in the world coordinate system obtained by straight line fitting and the line indicating the bottom end of the trailer in the world coordinate system; a calculation unit 3F that calculates the trailer hitch angle in the world coordinate system; and a processing unit 3G that performs Kalman filtering on the trailer hitch angle in the world coordinate system, calculated by calculation unit 3F.SELECTED DRAWING: Figure 1

An image forming apparatus includes a rotational photosensitive member, an exposure device including a plurality of light emitting elements and a driving unit, an output unit configured to superimpose a clock signal on image data, and output the image data as serial data, a generation unit configured to recover and generate the clock signal superimposed on the image data, a conversion unit configured to receive the serial data and convert the received serial data into parallel data, a lock signal output unit configured to lock the generation unit and output a lock signal in a case where the generation unit generates the clock signal at a predetermined frequency, and a control unit configured to count a number of times the conversion unit has not received the serial data normally during a predetermined period, and unlock the generation unit in a case where the number of times exceeds a predetermined value.

The invention relates to the field of clean energy electrolysis hydrogen production, in particular to a three-section electrolytic bath hydrogen production power supply system and a power supply control method thereof. According to the system, an alternating current bus module is connected with three-phase alternating current and provides a three-phase alternating current power supply; the power supply conversion module comprises three power supply conversion units, the three power supply conversion units are jointly connected to the alternating current bus module in parallel, and each power supply conversion unit converts the three-phase alternating current power supply into a working direct current power supply; the three-section type electrolytic bath comprises three sub-electrolytic baths which are connected in series, and each sub-electrolytic bath is correspondingly connected with one power supply conversion unit to obtain the working direct-current power supply; the power supply conversion unit comprises a rectification circuit, a three-level BUCK circuit and a resonance LLC cascade circuit which are connected in sequence. According to the invention, accurate power distribution and independent decoupling control of a load section are realized through the independent modular power supply; meanwhile, harmonic interference is restrained, the power factor is improved, and device stress and line loss are reduced.