305 results about "Power processing" patented technology

The invention relates to the technical field of biomechanical analysis, in particular to a health data input method and system and a storage medium. The method comprises the following steps: collecting multi-modal data of a subject, and carrying out gait event recognition to obtain a gait event mark; bilateral gait synchronous alignment is carried out according to the gait event marks, bilateral gait cycle data are obtained, and the bilateral gait cycle data comprise plantar pressure data, ground force data, joint angle data and motion state data; plantar pressure power processing is carried out according to the plantar pressure data and the ground force data, and plantar power parameters are obtained; estimating body segment inertial parameters of the subject; joint torque energy processing is carried out according to the body segment inertial parameters and the joint angle data, and joint power parameters are obtained; and performing gait acceleration calculation according to the motion state data to obtain a gait stability index. The accuracy, comprehensiveness and convenience of gait analysis are remarkably improved through a biomechanical analysis technology.

The invention discloses a photovoltaic power interval prediction method based on a GRU-LSTM combined neural network, and belongs to the technical field of photovoltaic power interval prediction. The method comprises the following steps: S1, taking historical power generation data as original wind-solar power generation power prediction data, processing the data, and screening related meteorological characteristics by adopting a Pearson correlation coefficient; s2, a GRU-LSTM combination model is constructed, and related hyper-parameters are set; s3, taking the screened related meteorological features as input for training, calculating a photovoltaic point prediction result according to a weight coefficient, and performing related error evaluation; and S4, based on the photovoltaic power point prediction result, calculating a photovoltaic power interval prediction result by using a quantile regression technology, and detecting performance evaluation through a test set. According to the method, the minimum prediction error correlation index is taken as the target, the influence of different weathers on photovoltaic power processing is considered, the Pearson's correlation coefficient analysis is utilized to select more representative meteorological characteristics, and the combined model and the quantile regression technology are utilized to finally obtain the photovoltaic power interval prediction result.

The invention relates to a low-delay low-coupling multi-channel analog video signal processing system and method, electronic equipment and a storage medium, aiming at the limitation of the existing multi-channel video processing technology, hardware such as an analog signal receiving board, a controller, a video processing development board, a computing power development board and a serial port receiver and software technologies such as Python and Gstreamer are adopted. The method comprises the steps of signal receiving, frequency point screening, video processing and transmission, intelligent identification, layout customization and the like. The system achieves the positive effects of centralized computing power processing, accelerated calculation, rapid frequency point scanning, low-delay picture display, user-defined layout, convenient access to an intelligent identification module and the like, and is suitable for various actual scenes under analog video signals.

The invention discloses a power supply intelligent management control system, and relates to the technical field of power supply management, and the system comprises a power supply processing module which is used for accessing and transmitting AC electric energy and carrying out voltage reduction, rectification filtering, inversion and transformation processing; the current sampling module is used for current sampling control, signal conversion and amplification filtering; the voltage comparison module is used for setting an overvoltage threshold value, comparing the overvoltage threshold value with the voltage and detecting the shunting degree; the power taking processing module is used for converting, amplifying and filtering the shunted sampling signals, and rectifying and storing the shunted sampling signals; the intelligent control module is used for signal receiving and module control; the electric energy adjusting module is used for adjusting voltage; and the output processing module is used for outputting filtering and electric energy superposition processing and supplying power to the output module. The intelligent management control system for the power supply can provide voltage stabilization and perform shunt power taking work and electric energy processing when a sampled signal is greater than a set threshold value, so that the safety of the system can be improved, and energy-saving power supply control can also be performed.

The invention discloses a non-cooperative underwater sound pulse signal detection method based on power-w and fractional order spectral entropy. The method comprises the following steps: performing fractional order Fourier transform on a received non-cooperative underwater sound pulse signal; the optimal order p of fractional Fourier transform is found through a traversal method; performing v-th power processing on the energy of the frequency domain signal after the p-order fractional order Fourier transform to obtain an improved fractional order power spectrum; performing normalization processing on the improved fractional order power spectrum E, and calculating an entropy value T corresponding to the data; calculating an entropy value of the background noise, taking the entropy value as a fixed threshold value, comparing the fixed threshold value with the entropy value obtained by calculation, and if the fixed threshold value is greater than the entropy value obtained by calculation, judging that there is a signal; otherwise, no signal exists. According to the method, the detection effect can still keep excellent under the condition of low signal-to-noise ratio, and the robustness is higher.

The embodiments of the present invention provide a power processing method and device for a flying car. The method includes: obtaining state parameters of the operating state of the flying car; performing iterative calculation of theoretical values based on the state parameters of the operating state and basic aerodynamic data to obtain the power value of the flying car in the operating state; generating the total power of the flying car under the state parameters of the current operating state according to the power value. By adopting the combined means of theoretical calculation and CFD, the basic aerodynamic data with fewer calculation cases is obtained by using the CFD method, and the data source of theoretical calculation is supplemented. While improving the accuracy of theoretical calculation, the power values of the whole machine of the flying car at different hover altitudes, different forward flight speeds, different climbing speeds, and different takeoff weights can be quickly calculated, and the power requirements corresponding to the complete speed-altitude envelope can be obtained, so as to provide parameter basis for power selection. Since the calculation workload of CFD is greatly reduced, the effects of low calculation cost and high timeliness are achieved.

An energy collection system may collect and use the energy generated by an electric field. Collection electrodes are positioned relative to a planetary body. One or more of the collection electrodes may positioned substantially on, above, or below the planetary body. Example embodiments comprise a power processing module. One or more collection electrodes may comprise a collection device with microscopic points of a cross-section of the collection device exposed to the environment.

The invention provides a motor over-temperature protection method and device, a medium and a program product, and relates to the technical field of motor control, and the method comprises the steps: obtaining the current temperature and temperature rise slope of a target motor; when the temperature rise slope does not exceed a preset normal temperature rise slope, performing power reduction processing on the target motor based on a preset motor power reduction coefficient, a power reduction temperature threshold and a twist clearing temperature threshold; and when the temperature rise slope exceeds the normal temperature rise slope, the motor power reduction coefficient, the power reduction temperature threshold and the twist clearing temperature threshold are adjusted based on the current temperature and the temperature rise slope, and power reduction processing is performed on the target motor based on the adjusted motor power reduction coefficient, the adjusted power reduction temperature threshold and the adjusted twist clearing temperature threshold. According to the method, over-temperature protection during abnormal temperature rise of the motor can be realized, shutdown caused by the fact that the temperature of the motor exceeds an allowable limit is prevented, the adaptability and stability of a motor system are enhanced, and a good over-temperature protection effect is achieved.

The invention relates to the technical field of all-solid-state laser, and provides a thermal stress self-matching laser device and a regulation and control method thereof. The resonant cavity oscillates the pumping laser, and an input lens and an output lens are oppositely arranged in the resonant cavity; the gain medium is arranged between the input lens and the output lens; the stress self-adaptive heat sink is used for dissipating heat and can monitor and adjust a real-time stress value borne by the gain medium; the power meter is arranged at the downstream of the output lens along the light path and is used for measuring the power of the output laser; a stress threshold value is preset in the processor; and the processor is used for controlling the stress adaptive heat sink to adjust the real-time stress value based on the power and the stress threshold value, so that the power meets a preset requirement. According to the invention, the stress of the gain medium in the operation process of the laser is monitored, regulated and controlled, and the stress matching of the gain medium is realized, so that the thermally induced stress damage risk of the gain medium is reduced.

The invention provides a power transmission and distribution-gas integrated energy system fault evolution analysis method under an extreme typhoon disaster, and the method comprises the steps: calculating the time-varying fault probability of a power transmission and distribution network element based on a mechanical stress model of a typhoon wind-rain load, and generating an initial cut-off set through Monte Carlo sampling; through transmission-distribution network coupled affine load flow calculation, a serious overload line caused by load flow transfer is identified, and protection removal is executed; a dynamic affine model is adopted to analyze a power transmission and distribution-gas load shedding strategy, a natural gas pipe storage equation and electricity-gas coupling equipment operation constraint are combined, the influence of power line on pressure fluctuation and pipe storage change of a natural gas system is quantified, and overload power of a general overload line is balanced; processing a bilinear term, and converting non-convex constraint by adopting rotation second-order cone relaxation; and in combination with coupling operation constraints of an electrically-driven compressor, a gas turbine and power-to-gas equipment, a natural gas system fault propagation risk caused by power line breaking and power transmission and distribution-gas load shedding is quantified.

The invention discloses an ultra-wideband high-linearity phased array switch, which comprises three ports, namely a transmitting end TX port, an antenna end ANT port and a receiving end RX port, and is characterized in that when a transmitting branch is switched on, a signal is transmitted from the TX port to the ANT port; when the receiving branch is conducted, a signal is transmitted from the ANT port to the RX port; the transmitting branch comprises a matching inductor L2, a transistor M5, a transistor M6, a transistor M1, a transistor M2 and a matching inductor L1, the receiving branch comprises a matching inductor L1, a transistor M3, a transistor M4, a transistor M7, a transistor M8 and a matching inductor L3, the proposed switch is designed by adopting a classic series-parallel structure, a deep N-well NMOS (N-channel Metal Oxide Semiconductor) transistor is used, and the matching inductor L1, the transistor M5, the transistor M6, the transistor M1, the transistor M2 and the matching inductor L3 are matched. The isolation degree of the transistor of the turn-off branch is improved by adopting a negative body bias technology, and meanwhile, the power processing capacity of the turn-off transistor is improved by adopting a negative voltage bias technology and a transistor stacking technology together.

A data processing method and device, a computer device, and a readable storage medium are disclosed. The method may include: acquiring a service algorithm of an application service, and performing format conversion on the service algorithm to obtain an algebraic intermediate representation; processing the algebraic intermediate representation according to a preset Scalable Transparent ARgument of Knowledge (STARK) conversion rule to obtain a prover and a verifier; sending the prover to a computing power processing device; receiving an operation result sent by the computing power processing device; and performing a verification on the proof information using the verifier, and sending the ciphertext result to the data source device in response to the verification of the proof information being successful, such that the data source device decrypts the ciphertext result using the homomorphic encryption algorithm and returns a plaintext result.

The invention, which relates to the technical field of hybrid power supply, discloses a flexible AC / DC hybrid power supply system comprising an AC power supply module used for power supply and electric energy processing; the voltage transformation compensation module is used for voltage compensation and voltage transformation; the photovoltaic conversion module is used for photoelectric conversion, electric energy conversion, electric energy superposition and providing compensation electric energy; the direct current control module is used for electric energy conversion and voltage compensation; the transmission control module is used for controlling an electric energy transmission path and supplying power to the alternating current bus module to obtain the transformation compensation module; the energy storage control module is used for energy storage and discharge control; the alternating-current bus module is used for electric energy gathering and power distribution; the photovoltaic detection module is used for setting a low-voltage threshold value and a high-voltage threshold value and carrying out voltage detection; the energy storage detection module is used for setting a low-power threshold value and a full-power threshold value, carrying out electric quantity detection and judging a power supply state; and the central control module is used for signal receiving and module control. The flexible alternating-current and direct-current hybrid power supply system can improve the energy utilization rate and the power supply stability.

A wireless power transmission device is provided. The wireless power transmission device includes a plurality of power transmission antennas, a plurality of sensing antennas, a power processing circuit memory storing one or more computer programs, and one or more processors communicatively coupled to the plurality of power transmission antennas, the plurality of sensing antennas, the power processing circuit, and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the wireless power transmission device to control the power processing circuit to transmit power to a first electronic device disposed in a first region among a plurality of regions through the plurality of power transmission antennas, transmit at least one first signal through the power processing unit using a first sensing antenna among the plurality of sensing antennas, receive at least one second signal through the power processing circuit, using a second sensing antenna among the plurality of sensing antennas, identify, whether an object exists in the first region among the plurality of regions based on the at least one first signal and the at least one second signal, identify a first stay duration during which the object stays in the first region, based on identifying that the object exists in the first region, identify a first cumulative RF radiation value of the wireless power transmission device for the first region during the first stay duration, and based on the first cumulative RF radiation value being equal to or greater than a first threshold for the first region, control the power processing circuit to adjust transmission output of the power to the first electronic device in the first region or to direct the power toward the first electronic device in the first region to a second electronic device in a second region different from the first region.

The invention provides a Hall and ion hybrid electric propulsion system. The Hall and ion hybrid electric propulsion system comprises a composite material gas cylinder, an inflation valve, a pressure adjusting module, a Hall flow adjusting module, an ion flow adjusting module, a Hall thruster, an ion thruster, an electric propulsion control unit, a power processing unit and a power supply processing and control unit, the pressure adjusting module supplies gas to the Hall flow adjusting module and the ion flow adjusting module in a time-sharing manner; the Hall flow regulation module and the ion flow regulation module are used for carrying out flow control on the Hall thruster and the ion thruster respectively; the electric push control unit performs time-sharing power supply control on the power processing unit and the power supply processing and control unit; the power processing unit and the power supply processing and control unit respectively provide electric energy for the Hall thruster and the ion thruster; the Hall thruster and the ion thruster provide thrust or impulse for the spacecraft; according to the Hall and ion hybrid electric propulsion system, the integrated design of air supply, power supply and autonomous process control of the Hall and ion thrusters is achieved, system air path and circuit configuration is simplified, and the requirement for a spacecraft with high specific impulse and high thrust electric propulsion systems at the same time is met.

A method for managing power resources in an augmented reality (AR) device is described. In one aspect, the method includes configuring a low power mode to operate on a low power processor of the AR device using a first set of sensor data, and configuring a high power mode to operate on a high power processor of the AR device using a second set of sensor data, the method includes operating a low-power application in a low-power mode based on a first set of sensor data using a low-power processor, detecting a request to operate a high-power application at the AR device, activating a second set of sensors of the AR device corresponding to the high-power mode in response to detecting the request, and transmitting the second set of sensors to the low-power processor. And operating, using the high-power processor, the high-power application in a high-power mode based on the second set of sensors.

The invention provides a power processing circuit and a power amplifier system, the power processing circuit comprises a first differential signal port, N second differential signal ports and a power processing unit connected between the first differential signal port and the N second differential signal ports, the power processing unit comprises N pairs of first differential coupling lines, and N is greater than or equal to 2; the positive coupling lines of the N pairs of first differential coupling lines are connected with the positive port of the first differential signal port, and the negative coupling lines of the N pairs of first differential coupling lines are connected with the negative port of the first differential signal port. According to the scheme, the positive coupling lines and the negative coupling lines of the different pairs of first differential coupling lines are connected in parallel, so that the whole circuit structure is simpler, the balance degree is better, the size and insertion loss of the power processing circuit are reduced, and when the circuit structure is applied to an amplifier system, the power processing circuit is more stable. The multi-way amplifier may be powered from a parallel connection point.

The invention discloses a POI substrate and a preparation method and application thereof, and belongs to the technical field of semiconductor preparation. The preparation method of the POI substrate comprises the following steps: S1, placing a supporting layer in a chemical vapor deposition furnace, filling a silane atmosphere, reacting at 580-650 DEG C for 30-120 minutes, growing a polycrystalline silicon thin film, and polishing the polycrystalline silicon thin film; s2, putting the supporting layer on which the polycrystalline silicon is deposited in the step S1 into spatial PEALD for deposition circulation, growing a SiO2 thin film at 60-120 DEG C, then performing annealing treatment, and then polishing the SiO2 thin film; s3, performing ion implantation on the functional layer; and S4, bonding the supporting layer on which the polycrystalline silicon and the SiO2 are deposited in the step S2 with the functional layer on which the ions are injected in the step S3, then performing annealing treatment, and then performing chemical mechanical polishing to obtain the POI substrate. The POI substrate is good in film-forming property and uniformity and good in compactness, and can be used for manufacturing a surface acoustic wave filter with excellent temperature stability and high-power processing.

The invention discloses a non-isolated quasi-series-parallel combined converter based on a switched capacitor network. The converter comprises the switched capacitor network, a non-isolated DC-DC converter, an output filter capacitor Co and a load resistor R. The combined converter gives full play to the advantages of high power density and high efficiency of a non-voltage-regulation mode of the resonant switched capacitor converter, the resonant switched capacitor network and the DC-DC chopper converter are subjected to topological combination through a partial power processing technology, and the combination has the advantages of high power density and high efficiency of the non-voltage-regulation mode of the resonant switched capacitor network and also has the advantages of high power density and high efficiency of the non-voltage-regulation mode of the DC-DC chopper converter. And the advantage of wide voltage regulation range of the DC-DC chopper converter is also fused. By means of the time-sharing charging and discharging characteristics of the capacitors, the resonant switched capacitor network and the DC-DC chopper converter are connected in series on the input side to reduce voltage stress and are connected in parallel on the output side to replace a traditional two-stage cascade mode, and higher total electric energy conversion efficiency is achieved.

A method for managing power resource in an augmented reality (AR) device is described. In one aspect, the method includes configuring a low-power mode to run on a low-power processor of the AR device using a first set of sensor data, and a high-power mode to run on a high-power processor of the AR device using a second set of sensor data, operating, using the low-power processor, a low-power application in the low-power mode based on the first set of sensor data, detecting a request to operate a high-power application at the AR device, in response to detecting the request, activating the second set of sensors of the AR device corresponding to the high-power mode, and operating, using the high-power processor, a high-power application in the high-power mode based on the second set of sensors.

The invention provides a distributed service method and platform based on a service platform, and relates to the technical field of distributed computing power processing. The method comprises the steps of collecting historical computing power periodic supply data of different distributed servers, and performing performance analysis for stable available computing power to form distributed computing power supply data; obtaining a pre-estimated calculation power total amount of the training object set, and performing calculation power supply matching analysis in combination with the distribution calculation power supply data to form distribution calculation power matching data; and acquiring power supply price change data of the power grid, and performing computational power supplementary analysis in combination with the distributed computational power matching data and historical computational power period supply data of different distributed servers to form distributed computational power supplementary data. According to the method, reasonable computing power supply matching is carried out by extracting the distributed computing power based on historical computing power supply characteristics, and efficient and reasonable utilization of total computing power provided by a platform can be realized while a training object is ensured to obtain sufficient computing power.

The invention comprises a method and apparatus for processing power, comprising the steps of: generating / using 3-phase power; feeding an AC drive with the 3-phase power, the AC drive generating a first output; and transforming the first output with a zigzag transformer, the zigzag transformer linked to at least one load output / load connector. The method and apparatus comprises an optional filter for filtering the 3-phase power prior to the step of transforming, the filter including a distributed gap core material.

A method for managing power resource in an augmented reality (AR) device is described. In one aspect, the method includes configuring a low-power mode to run on a low-power processor of the AR device using a first set of sensor data, and a high-power mode to run on a high-power processor of the AR device using a second set of sensor data, operating, using the low-power processor, a low-power application in the low-power mode based on the first set of sensor data, detecting a request to operate a high-power application at the AR device, in response to detecting the request, activating the second set of sensors of the AR device corresponding to the high-power mode, and operating, using the high-power processor, a high-power application in the high-power mode based on the second set of sensors.

The invention relates to the technical field of electric vehicle control, in particular to a method for processing communication loss of a vehicle control unit and a battery controller, which comprises the following steps that: 1, when a VCU detects that a BMS key message or the whole BMS message is not received and lasts for a certain time, the VCU judges a communication loss fault with the BMS; 2, when diagnosing that the communication loss fault with the BMS is equal to 1, the VCU immediately locks some important parameters of the whole vehicle at the moment when the loss fault occurs; 3, the VCU judges according to the important parameters, so that the whole vehicle smoothly transits to a safe state; 5, the VCU sends information to the ICM instrument to be displayed, the display character can be a BMS communication loss super limphome mode, and meanwhile a whole vehicle system fault lamp and a battery system fault lamp are turned on to warn a driver; the problems that at the present stage, after a VCU cannot receive CAN information of a BMS controller, zero-power processing is adopted, the whole vehicle is in the state of being not powered on and not capable of being driven and can only wait for rescue, certain economic losses are caused to a driver, and the safety is affected are solved.

The invention discloses a computing power processing method and device, a first network element, a second network element and a storage medium. The method comprises the following steps: receiving a first parameter sent by a second network element; the first parameter represents first information of a first computing power corresponding to a first base station and / or second information of a second computing power corresponding to at least one first node adjacent to the first base station and / or a second base station.

Methods and devices to reduce gate induced drain leakage current in RF switch stacks are disclosed. The described devices utilize multiple discharge paths and / or less negative body bias voltages without compromising non-linear performance and power handling capability of power switches. Moreover, more compact bias voltage generation circuits with smaller footprint can be implemented as part of the disclosed devices.

The invention relates to the technical field of power processing, and provides a new energy gateway based on real-time and non-real-time architectures, so that the new energy gateway can consider a power task with a non-real-time property and a power task with a real-time property. The new energy gateway comprises a hardware layer, a bottom soft drive layer and an operating system layer, the operating system layer is located on the bottom soft driving layer, and the bottom soft driving layer is located on the hardware layer; the hardware layer comprises hardware resources, the bottom soft drive layer comprises a hardware resource allocation file, and the operating system layer comprises a real-time operating system and a non-real-time operating system; the hardware resource allocation file is used for determining a first type of hardware resources allocated to the real-time operating system and a second type of hardware resources allocated to the non-real-time operating system in the hardware resources; if the bottom soft drive layer receives the power task of the real-time operating system, the bottom soft drive layer calls the first type of hardware resources to process the power task, and if the bottom soft drive layer receives the power task of the non-real-time operating system, the bottom soft drive layer calls the second type of hardware resources to process the power task.

The invention discloses a TDLAS (tunable diode laser absorption spectroscopy) technology-based low-false-alarm combustible gas monitoring system, which is characterized in that an underground well chamber monitoring terminal is used for detecting whether the methane gas concentration exceeds the standard or not and detecting whether the well lid state is changed or not, and sending concentration information, well lid state information, water immersion information and positioning information to a gas monitoring platform; and the fuel gas monitoring platform analyzes whether the underground well chamber has a leakage risk or not according to the uploaded data information. According to the invention, a worker does not need to frequently open a well lid for inspection, the fingerprint characteristic of gas identification is realized according to the unique absorption spectrum of gas molecules detected by the TDLAS technology in a specific infrared band, and the ultra-long service life of equipment is ensured through low-power-consumption processing of software and hardware; by adopting a monitoring-communication-positioning three-dimensional monitoring system and an underground well chamber combustible gas monitoring system, through high-precision sensing, intelligent networking and cloud management, the comprehensive safety control of an underground well environment is realized, the industrial pain point of low online rate is solved, the response speed is optimized, and the potential safety hazard is reduced.

The invention provides a partial power processing type ultra-high voltage conversion ratio switched capacitor converter topological structure and a control method thereof, and the structure comprises a high-voltage side port which is connected with a high-voltage power supply or a load; the high-voltage side filter is used for filtering high-voltage side power input or load output; the magnetic element unit comprises a two-winding and multi-winding transformer, an autotransformer, a center tapped transformer and a coupling inductor; the switched capacitor unit comprises at least two switches and one or more capacitors, and the number of the capacitors is n; the system further comprises a high-frequency rectification inverter and a low-voltage side filter, and the low-voltage side filter is used for filtering low-voltage side power input or load output. According to the technical scheme, the switched capacitor unit and the magnetic element unit are flexibly configured, and electric energy conversion with various high voltage conversion ratios can be realized only by using open-loop control.

An energy transfer system includes a conversion device configured for partial power processing and configured to regulate current from a first battery system, and a controller configured to control the conversion device to adjust a first voltage of the first battery system to conform the first voltage to a second voltage of a second battery system, the second battery system connected in parallel with the first battery system by a bus. The conversion device is configured to receive power from the first battery system, cause a selected portion of the power to flow through a conversion stage to adjust the first voltage, the selected portion corresponding to a difference between the first voltage and the second voltage, cause a remaining portion of the power to flow directly to the bus and bypass the conversion stage, and output a current from the conversion device at the second voltage.