72 results about "Charge recovery" patented technology

The invention relates to an electric charge recovery dynamic risk assessment method and system based on dual-channel ensemble learning and dynamic PID regulation and control. The prediction method comprises the following steps: selecting power data of a certain number of enterprises for analysis, and screening Top-15 high contribution features; the XGBoost and the LightGBM are fused by adopting a Stacking integration method, and the arrearage probability of the user is predicted; proposing a tail risk capture mechanism of quantile random forest regression, and predicting the arrearage amount of the arrearage user based on the arrearage probability output by the classification model; and a two-channel joint framework of a classification model and a regression model is constructed, and two-dimensional early warning of arrearage probability prediction and arrearage amount quantitative analysis is realized. A dynamic risk scoring mechanism is constructed according to the arrearage probability of classification prediction and the large-amount arrearage risk of regression quantification, upgrading from a single index to a comprehensive score is completed, a dynamic risk regulation and control mechanism based on PID is provided, and intelligent grading and dynamic early warning of arrearage users are achieved.

To provide a method of eliminating charges in a potential control layer when recovering charges simpler and easier than a new charge carrier that can carry high charges at a low potential in an electrostatic generator.SOLUTION: An eliminated charge holder with the same type and without a potential control layer is provided behind a charge carrier 7 in a traveling direction, and is charged by a charging source 8 with a polarity different from and with an equal amount as charges present in a potential control layer 73 of the charge carrier, and the charges are added to the potential control layer 73 to make a charge amount in the potential control layer 73 zero. Thereby, the charges carried in a state in which a potential of the charge carrier 7 is enhanced can be safely recovered in a simple method.SELECTED DRAWING: Figure 3

Disclosed in the present application are a method and apparatus for regulating the power of an offshore wind farm energy storage system on the basis of the state of charge. The method in the present application comprises: acquiring a power grid frequency and the state of charge of an offshore wind farm energy storage system, and on the basis of the power grid frequency and the state of charge, acquiring a power grid frequency deviation and a state-of-charge recovery demand, respectively; determining whether the power grid frequency deviation is within a preset power grid frequency dead band, if the power grid frequency deviation is within the power grid frequency dead band, in view of the power grid frequency deviation and the state-of-charge recovery demand, acquiring an inertia power regulation and control amount of the energy storage system by means of a fuzzy control algorithm combined with a preset adaptive inertia frequency control model, otherwise, in view of the power grid frequency deviation and the state-of-charge recovery demand, acquiring the inertia power regulation and control amount by means of the adaptive inertia frequency control model; and on the basis of the inertia power regulation and control amount, regulating and controlling the inertia power of the offshore wind farm energy storage system. By means of the present application, the level of refinement and accuracy of a regulation and control process for an energy storage system can be improved.

The invention relates to the technical field of wiring terminal boxes, in particular to an intelligent analysis type wiring terminal box and a control system thereof.The intelligent analysis type wiring terminal box comprises the intelligent analysis type wiring terminal box and the control system used for controlling the wiring terminal box, and the intelligent analysis type wiring terminal box comprises a box body and a transparent protective cover; the box body is composed of a first main body, a second main body and a third main body which are sequentially connected, the first main body is provided with a wiring communication assembly, the second main body is an insulation board, and the third main body is provided with a monitoring acquisition assembly; the control system comprises a sampling unit, a comparison unit, a processing unit, a communication unit, an acquisition terminal and an acquisition background, and all the units cooperate to realize data sampling, comparison, processing and transmission. According to the invention, the accuracy of the metering device can be guaranteed, and the working pressure of line loss index governance improvement and electric quantity and electricity charge recovery by basic units can be reduced, so that the purpose of intelligent monitoring of the metering device is achieved.

The invention discloses a method for predicting the high-temperature storage performance of a battery. The method comprises the following steps: manufacturing a negative plate into a soft package symmetrical battery; measuring the open-circuit voltage of the soft package symmetrical battery; at least three different scanning speeds are selected, a CV curve of the soft package symmetrical battery is made, at each scanning speed, two current values corresponding to the open-circuit voltage are I1 and I2 respectively, and I is recorded as 0.5 * (I1-I2); the scanning speed and the corresponding I value are fitted to obtain an oblique line, the slope of the oblique line is electric double layer capacitance Cdl, and normalization processing is performed according to a formula C = Cdl / S or C = Cdl / m to obtain unit capacitance; testing the high-temperature full-power recovery rate of the soft package symmetrical battery with the known C value at the test temperature after N days; drawing a standard curve by using multiple groups of data; and preparing the negative plate to be measured into a symmetrical battery, and substituting the measured capacitance into the standard curve to obtain the full-charge recovery rate after N days. The method can quickly predict the high-temperature storage performance of the battery.

The utility model provides a charger with a power failure memory function, which realizes intelligent charging by integrating an alternating current power supply input module, an EMI (Electro-Magnetic Interference) filtering module, a rectifying module, a filtering module, a voltage dividing module, an MCU (Microprogrammed Control Unit) control module, a memory module, a power failure detection module, a preset time maintenance module and a charging recovery module. The charger can remember parameters such as voltage, current, battery type and the like set by a user, and automatically recover to a state before power failure after the power supply is recovered, and the user does not need to operate again. The function is achieved through cooperative work of the MCU controller, the memory module, the power failure detection module and the recovery module, the operation process is greatly simplified, and the user experience is improved. And when the power supply fails, the preset time maintaining module ensures that the setting is not lost, so that the safety and reliability of the charging process are ensured.

The invention discloses an electric charge payment reminding system and method based on voice interaction, belongs to the technical field of electric charge payment reminding, and solves the problems that when users are divided into different electric charge grades, a single electric charge consumption index is not considered, the payment credit conditions of the users cannot be comprehensively reflected, and the user experience is poor. The method comprises the steps of obtaining user electricity consumption associated information, evaluating a user credit rating based on a K-means clustering improved TOPSIS algorithm, carrying out risk identification on voice interaction information and the user credit rating by a recovery risk evaluation model, and outputting an electric charge recovery evaluation result. According to the method, the K-means clustering is combined with the TOPSIS algorithm, multiple characteristic indexes can be comprehensively considered to evaluate the credit rating of the user, meanwhile, the voice interaction information and the credit rating of the user are considered during electricity charge recovery evaluation, and therefore a more accurate electricity charge recovery evaluation result is provided for electricity charge payment reminding.

A charge recycling circuit in an integrated circuit DC-DC converter having two power MOSFETs, the charge recycling circuit comprising a single inductor and recycling MOSFET switches arranged and sized such that when one of the two power MOSFETs is turning off, its gate capacitance charges are transferred to the single inductor, stored in the single inductor and then transferred directly to the gate of the other power MOSFET to turn it on.

The invention discloses automobile part brazing leakage testing equipment, which is applied to the technical field of brazing leakage testing equipment, and is characterized in that the automobile part brazing leakage testing equipment comprises a testing seat; a clamping assembly used for synchronously clamping a plurality of to-be-tested parts is movably connected to the testing base based on the feeding and discharging conveying assembly, and a lower sealing base and an upper sealing base are fixedly connected to the testing station of the testing base in the vertical direction based on the guide pressing assembly. The lower sealing seat and the upper sealing seat form a sealing test cavity, the lower sealing seat is uniformly and fixedly connected with a plurality of sealing positioning assemblies, the upper sealing seat is fixedly provided with an inflation recovery assembly, and the sealing positioning assemblies are internally and fixedly connected with vacuum suction pipes and helium detection assemblies used for detecting helium; the method has the technical effects that the test efficiency is improved, and the test cost is reduced.

The invention provides a power-off recovery control method for a charging station, and relates to the technical field of charging pile control, the method is applied to a control end, and comprises the steps: obtaining a unique identifier corresponding to each charging pile in the charging station, and determining the identity of the charging pile as the control end based on the unique identifier; responding to power restoration of the charging station, and receiving a power-off restoration application; establishing a recovery charging queue based on the receiving sequence of the power-off recovery application; and based on the recovery charging queue, successively sending a recovery charging instruction so as to respectively instruct the control end or each controlled end to carry out charging recovery. According to the method and the device, the charging piles can perform charging recovery according to the recovery charging queue sequence, so that the problems of power grid tripping, even damage to power grid equipment or the charging piles and the like caused by overlarge instantaneous load due to simultaneous charging recovery when power supply is just recovered (at the moment, the voltage is insufficient and the power supply is not stable) in all the charging piles with charging interruption in the station are avoided.

The invention discloses an optical thin film rim charge recovery device which is characterized in that rim charges are monitored in real time through an annular laser sensor when the optical thin film rim charge recovery device is used, and when the rim charges cannot be detected, namely after a clamping assembly is started through an electric control box to automatically clamp the rim charges, the rim charges are pulled to a feeding port through a lifting assembly; rapid response and automatic recovery during rim charge breakage are achieved, manual intervention requirements are reduced, meanwhile, when a single side breaks down, due to the fact that a butt joint block and a driving block are detachably connected, an assembly plate and a guide block are detachably connected through an electromagnet and an adsorption disc, the electromagnet is controlled through an electric control box according to requirements, and when a feeding port on one side breaks down, the feeding port on the other side breaks down, the assembly plate and the guide block are not damaged. And offcut is temporarily transferred to the feeding port on the other side for collection, so that continuous and stable operation of the production line is guaranteed.

A pixel driving circuit (111) and a display panel (10). The pixel driving circuit (111) comprises eight, nine or ten transistors, one or two storage capacitors, one data signal line, one light-emitting control signal line, two scanning signal lines, and two high-frequency reset signal lines. The ninth transistor (T9), the first capacitor (C1), and the second reset signal (R2n) together form a core component of an emission charge recovery structure. Under the action of the second reset signal (R2n), the ninth transistor (T9) is continuously turned on and off within the time of a picture frame; when the ninth transistor (T9) is turned off, charges are emitted to the first capacitor (C1), and the brightness of the display panel (10) decreases accordingly; and when the ninth transistor (T9) is turned on, charges are captured from the first capacitor (C1), and the brightness of the display panel (10) rises again to form flicker. In this way, the process is repeated several times before the next frame arrives, and the brightness flicker of the display panel (10) is changed to high frequency, so that the brightness flicker cannot be recognized by human eyes, thereby improving the display effect.

The invention provides an electricity charge recovery risk prediction method and device, electronic equipment and a storage medium, and the method comprises the steps: firstly extracting an electricity utilization feature corresponding to a first electricity utilization curve and an electricity charge payment feature corresponding to first electricity charge payment data; then, according to the electricity utilization characteristic and the electricity charge payment characteristic, determining an electricity charge behavior characteristic of the target user, then obtaining a first basic information characteristic of the target user, and inputting the electricity charge behavior characteristic of the target user and the first basic information characteristic into a risk prediction model obtained by training; according to the method and the device, the electric charge recovery risk corresponding to the target user is obtained, the electric charge recovery risk prediction is performed through the risk prediction model obtained through training, and the accuracy and the efficiency of electric charge recovery risk prediction are further improved.

The invention relates to the technical field of image sensor design, in particular to a cross coupling charge pump circuit and module applied to a CIS and a CIS module. The circuit comprises a charge pump part, an anti-leakage switch part and a compensation circuit part. The charge pump part adopts a cross coupling design, an auxiliary switch tube MN7 is arranged on a boosting path, and an auxiliary switch tube MN8 is arranged on a lower boosting path; on one hand, MN7 and MN8 are controlled through the anti-leakage switch part, normal boosting of the charge pump part is guaranteed, and reverse backflow is avoided by keeping the MN7-MN8 disconnected in the charge recovery stage, so that output ripples are reduced; on the other hand, different compensation signals VF are provided for the charge pump part in different stages through the compensation circuit part, normal boosting of the charge pump part is guaranteed, and in the charge recovery stage, the VF larger than VDD is applied to the charge pump part to complete voltage compensation so as to improve transient response.

Stimulator circuitry useable in a stimulator device is disclosed. The circuitry includes biasing circuitry that can be used to generate a voltage to allow any one or more electrode on the device (including the case electrode and lead-based electrodes) to provide a common mode voltage (Vcm) to the tissue. Providing a stable Vcm to the tissue is particularly useful when sensing neural responses to the stimulation that the device provides. Switches are provided to couple each of the electrode nodes to one or more buses. This allows any of the electrodes to be selected to provide bipolar or monopolar stimulation, or to act to provide Vcm to the tissue during relevant pulses phases, including during passive charge recovery.

A system may include a neurostimulator and a programmer. The neurostimulator may have a plurality of electrodes, and may be configured to deliver neurostimulation by delivering neurostimulation pulses of a first polarity to a neural target using at least one stimulation electrode from the plurality of electrodes and passively recovering charge using a first number of one or more passive electrodes from the plurality of electrodes. The programmer may have a user interface configured to receive a user input for changing a number of passive electrodes used to passively recover charge from the first number to a second number. The programmer may be configured to control the neurostimulator to passively recover charge using the second number of passive electrodes. Some examples may include fractionalization to control the contribution of each passive electrode used to recover charge. A variable impedance may be used to control a relative charge recovery current.

The utility model relates to the technical field of thin film processing, in particular to a thin film rim charge recovery device which comprises a splitting machine and a mounting part. The splitting machine is provided with a rack, the mounting part is connected with the rack, and the mounting part is provided with a rolling mechanism used for rolling rim charges; a pushing mechanism used for cleaning the winding mechanism is arranged on the mounting part, two discharging holes are formed in the rack and symmetrically distributed in the rack, and the discharging holes are located in a discharging port of the pushing mechanism. According to the utility model, the cut leftover materials are recycled and rolled through the rolling mechanism, so that the subsequent recycling of the thin film is facilitated, and the rolling mechanism can continuously work; and the pushing mechanism is arranged on the mounting part and can automatically push the coiled offcut out of the winding mechanism, the winding mechanism does not need to be cleaned manually, the working efficiency of the offcut recycling device is improved, the service life of the offcut recycling device is prolonged, and the offcut recycling device is convenient to use.

According to the intelligent film laminating machine control method and system provided by the invention, the defect phase coordinates are established through film edge period marks, the elongation is estimated and the defect backtracking time delay is corrected in combination with the difference of upstream and downstream odometer rollers, and accurate attribution of defects in a process section is realized. According to the system, an online micro-stripping module is arranged in a rim charge recovery channel, a stripping mean value P, a fluctuation coefficient CV and stripping work W are obtained in real time, an adhesion allowable domain Omega is constructed, and an adhesion margin S is calculated; and solving a parameter adjustment increment delta u by adopting tangential constraint under omega constraint, performing safe self-adaptive adjustment on actuators in a temperature zone, pressing pressure, linear speed and the like, and avoiding transboundary failure through continuous verification and a step-down backspacing mechanism. According to the scheme, the first piece passing rate and stability are improved, the defect rate of bubbles, wrinkles, delamination and the like is reduced, batch tracing and controlled updating are supported, and the method is suitable for a roll-to-roll film laminating production line.

Recovery circuitry for passively recovering charge from capacitances at electrodes in an Implantable Pulse Generator (IPG) is disclosed. The passive recovery circuitry includes passive recovery switches intervening between each electrode node and a common reference voltage, and each switch is in series with a variable resistance that may be selected based on differing use models of the IPG. The passive recovery switches may also be controlled in different modes. For example, in a first mode, the only recovery switches closed after a stimulation pulse are those associated with electrodes used to provide stimulation. In a second mode, all recovery switches are closed after a stimulation pulse, regardless of the electrodes used to provide stimulation. In a third mode, all recovery switches are closed continuously, which can provide protection when the IPG is in certain environments (e.g., MRI), and which can also be used during stimulation therapy itself.

The invention relates to the technical field of battery protection, and discloses a battery protection control circuit and a mobile power supply, the battery protection control circuit comprises a redundancy protection circuit; the first end of the redundancy protection circuit is electrically connected with the first end of the main protection circuit and the negative electrode of the battery pack; the battery pack is composed of a battery cell group comprising a plurality of battery cells; the second end of the redundancy protection circuit is electrically connected with the positive electrode of the battery cell group; the third end of the redundancy protection circuit is electrically connected with a middle sampling point of the battery cell group; the fourth end of the redundancy protection circuit is electrically connected with a voltage reference point; the fifth end of the redundancy protection circuit is grounded; when it is detected that the charging voltage of any battery cell is larger than the charging protection voltage, charging operation is stopped through the redundancy protection circuit; when it is detected that the battery pack meets the preset charging recovery condition, the charging operation is recovered. Therefore, by implementing the method, a recoverable, low-energy-loss, accurate and efficient protection function can be realized under the condition of overcharge test or protection loop failure.

The present application relates to the technical field of on-chip interconnection, and particularly relates to a voltage adjusting method and system applied to on-chip charge recovery interconnection lines, which comprises the following steps: calculating a first data activity difference caused by data in a current period when the data is transmitted on upper and lower channels of the interconnection line based on charge recovery; accumulating a second data activity difference caused by data in past several periods when the data is transmitted on the upper and lower channels of the interconnection line on the basis of the first data activity difference to obtain a total data activity difference; when the total data activity difference exceeds a first threshold, performing voltage compensation on an intermediate voltage of the upper and lower channels to stabilize the intermediate voltage, and the voltage compensation is performed simultaneously with charging and discharging of the intermediate voltage. By predicting the intermediate voltage fluctuation of the upper and lower channels of the interconnection line, and then performing early intervention and compensation before the intermediate voltage appears large deviation, the problem of voltage compensation lag in the traditional charge recovery interconnection line design is solved.

The application provides a kind of optical storage system energy storage device state of charge management method, it is related to optical storage system control technical field, solve the optical storage system with initiative support ability and through energy storage device control direct current bus voltage, energy storage device overcharge / overdischarge leads to state of charge out of limit, simple cut off energy storage easy to cause system instability problem.The technical scheme is: set energy storage state of charge safety range and hierarchical limit threshold, build upper and lower limit management strategy.Lower limit side according to state of charge dynamic adjustment active droop coefficient, when out of limit, utilize photovoltaic power small power charging recovery;Upper limit side cut off energy storage, switch photovoltaic control target to maintain direct current bus voltage stability, balance photovoltaic and net side power, guarantee energy storage safety and system stability.

The invention discloses a novel BMS (Battery Management System) test method, which comprises the following steps that 200 groups of data packets are preset, each group of data packets comprises 200 pieces of 16-bit data, and the data comprises a DEC value of the number of guard plate strings; a quiescent current maximum value DEC value; the HEX value is selected as the test action, the Bit 0 to the Bit 6 are calibration 0, static 1, overcharge protection 2, over-discharge protection 3, overcurrent protection 4, charge recovery test 5 and discharge recovery test 6 in sequence, and the Bit 7 to the Bit 15 are reserved; statically testing a platform voltage DEC value; testing the voltage DEC value of the platform through overcharging; and over-discharging the voltage DEC value of the test platform. The invention belongs to the field of novel BMS test methods, and particularly relates to a novel BMS test method. The problems of low efficiency, complicated operation and poor flexibility are solved by presetting a large number of data packets and performing test action selection and parameter setting in a specific coding mode.

The invention discloses a low-temperature charging protection method and system for a power bank, and the method comprises the steps: collecting the multi-source temperature of the power bank during charging, calculating a temperature deviation value according to the multi-source temperature, and judging a low-temperature attribute according to the temperature deviation value; determining a grading protection mechanism based on the low-temperature attribute, determining a protection mode through the grading protection mechanism, and carrying out low-temperature charging protection on the power bank according to the protection mode; continuously detecting the multi-source temperature, evaluating a charging recovery condition according to a detection result, and determining whether normal charging is recovered or not according to an evaluation result; and if yes, determining an optimal charging parameter of the power bank according to the detection result, and controlling the power bank to continue charging based on the optimal charging parameter. Different protection modes can be accurately carried out according to different low-temperature states, the practicability, reliability and objectivity are improved, meanwhile, the charging normal state can be recovered in the first time, and the charging efficiency is guaranteed.

The invention discloses an improved hybrid trapezoidal converter with an efficient output capacitor charge recovery function, belongs to the technical field of improved hybrid trapezoidal converters, reduces the power loss during light load, improves the light load efficiency, enables equipment to efficiently utilize energy in a low-power-consumption operation state, and reduces the energy consumption of the equipment. According to the invention, the circuit structure is optimized, the endurance time of the battery in a light-load scene is prolonged, the improved design realizes accurate zero-cross detection and phase-dividing control, the optimized circuit structure, especially the M4 no longer conducts IC current, the IR voltage drop is significantly reduced, the precision of zero current detection (ZCD) is ensured, a guarantee is provided for stable operation and high-efficiency energy conversion of the circuit, and the circuit structure is simple and practical. The switching of each stage is more accurate, and the overall conversion efficiency is improved; in addition, the invention further provides a method for recycling CO charges by using CF and CDC capacitors and reusing the charges under a periodic wake-up application scene, so that the energy utilization efficiency is greatly improved, and the service life of the battery is greatly prolonged.

A system may include a neurostimulator and a programmer. The neurostimulator may have a plurality of electrodes, and may be configured to deliver neurostimulation by delivering neurostimulation pulses of a first polarity to a neural target using at least one stimulation electrode from the plurality of electrodes and passively recovering charge using a first number of one or more passive electrodes from the plurality of electrodes. The programmer may have a user interface configured to receive a user input for changing a number of passive electrodes used to passively recover charge from the first number to a second number. The programmer may be configured to control the neurostimulator to passively recover charge using the second number of passive electrodes. Some examples may include fractionalization to control the contribution of each passive electrode used to recover charge. A variable impedance may be used to control a relative charge recovery current.

The utility model provides a non-woven fabric offcut recycling device which comprises a movable base, movable brake wheels, a compression box, a shielding sealing door, a supporting column, a top plate, a hydraulic cylinder, a compression plate, a smashing feeding guide box structure and an adjustable offcut conveying frame structure. The crushing box, the discharge hole, the crushing roller, the power motor, the guide plate, the conveying plate and the baffle plate are arranged in a matched manner, so that crushed offcut can fall to the upper end of the guide plate in the use process, offcut conveying work can be conveniently performed in the compression process, and the aim of compressing the offcut for multiple times is fulfilled; a guiding and conveying plate, a conveying plate, a shielding plate, an inverted-U-shaped frame, a threaded column and a rotating pipe are arranged in a matched manner, so that threaded connection of the threaded column and the rotating pipe in the leftover material recycling process is facilitated, and the height of the right end of the guiding and conveying plate and the height of the conveying plate are conveniently adjusted in the recycling process; and the purpose of conveniently adjusting according to the thickness of the compressed offcut in the compression process is achieved.

The invention relates to the technical field of risk assessment, and provides a power consumer electricity charge recovery risk assessment method, device and system and a medium. According to the implementation scheme, through a pre-trained lightweight gradient boosting decision-making tree model, aggregation features of all first power consumers are predicted, and default probability values of all the first power consumers are obtained; determining each second power user based on the default probability value and the user type of each first power user; through a pre-trained time sequence fusion model, carrying out fusion prediction on the static electricity utilization characteristics and the dynamic electricity utilization characteristics of each second power user to obtain a default probability value of each second power user; and performing risk assessment on the to-be-assessed customer based on a preset risk assessment level, the default probability value of each first power user or the default probability value of each second power user to obtain a risk assessment level of the to-be-assessed customer. According to the embodiment of the invention, accurate and efficient evaluation of the electric charge recovery risk of the power consumer is realized.

The invention discloses a charging pile sudden stop reset control method and device, a program product and a storage medium, and relates to the technical field of charging control. By acquiring the working parameters in the time windows before and after the sudden stop signal and extracting the coupling incidence relation and the abnormal parameter characteristics among the working parameters, the fault root cause causing sudden stop and the risk level of the fault root cause can be accurately identified; a corresponding charging reset strategy is generated based on the identified risk level and the fault root cause, and potential safety hazards possibly brought by adopting a unified reset process are avoided; meanwhile, in the reset execution process, reset response parameters are collected in real time and safety verification is carried out, so that the reliability of the reset process is ensured; and finally, a corresponding charging recovery strategy is determined according to a safety verification result, differential processing of different sudden stop conditions is realized, and the safety of a charging pile resetting process is improved.

This application provides a charge recovery circuit, method, and display device. The circuit includes: a driving module; a parasitic capacitance module electrically connected to the driving module; an energy storage module electrically connected to the driving module; and a low-voltage circuit module electrically connected to the energy storage module. The driving module is configured to output charge to the parasitic capacitance module and control the connection between the parasitic capacitance module and the energy storage module. The parasitic capacitance module is configured to receive the charge output by the driving module. In response to the driving module activating the electrical connection between the parasitic capacitance module and the energy storage module, the driving module outputs charge to the energy storage module. The energy storage module is configured to store the charge output by the parasitic capacitance module and supply power to the low-voltage circuit module. Therefore, the circuit of this application realizes the recovery and utilization of residual charge.