336 results about "Charge detection" patented technology

The invention relates to the technical field of electric vehicle battery charging detection, and discloses an intelligent charging pile system and method integrating real-time battery state detection. A data fusion module; a battery health state prediction module; a charging optimization control module; the fault early warning module is connected with the cloud platform and edge computing cooperative processing module; the method comprises the following steps: acquiring battery data through multiple sensors, and constructing a data frame; extracting electrical characteristics, and generating a battery state vector; a digital twin model is constructed, and health state prediction is carried out; formulating a dynamic charging power regulation strategy; comparing the health trend of the battery with an expected behavior, and generating a fault early warning signal; and uploading the data and the strategy to the cloud platform, and updating the control strategy. According to the invention, a multi-sensor data fusion technology is adopted, twin modeling and a deep learning algorithm are combined, the health state of the battery is monitored in real time, the health state of the battery is comprehensively evaluated, and the fault risk of the battery is accurately predicted.

The invention belongs to the technical field of charging detection, and particularly relates to a charging pile extreme environment test method based on composite stress simulation, a terminal and a storage medium, and the method comprises the steps: inputting an identifier corresponding to a target test scene through a human-computer interaction interface of a test cabin, and executing a query operation based on the input identifier, retrieving a preset parameter combination from a preset scenarized stress library by using the mapping function; in a closed test cabin, environment parameter data are collected in real time through a distributed sensor array and fed back to a central controller, and the central controller drives an execution component to cooperatively regulate and control parameters such as temperature and humidity, so that the environment parameters are stabilized in a preset range; a sequential stress scheme is generated based on a pre-stored dynamic loading algorithm, an execution component is controlled to realize stress superposition or stress alternation, and a charging load is synchronously adjusted to simulate a composite stress effect under an actual working condition; simulation of multi-factor combined stress and dynamic loading is realized, an actual use fault can be found in advance, and the matching degree of a test result and a real environment is remarkably improved.

The invention discloses a battery state-of-charge detection method based on deep learning and ultrasonic feature fusion. The method comprises the following steps: collecting and preprocessing battery ultrasonic signals and battery electrical parameters; extracting an ultrasonic amplitude; extracting and fusing the characteristics of the battery voltage, the surface temperature, the ultrasonic amplitude and the phase difference; the method comprises the following steps of: optimizing parameter values of a BiTCN-BiLSTM-Multi-Head Attention network on the basis of a WAA weighted average optimization algorithm, extracting basic characteristics related to the SOC of the battery in a characteristic matrix on the basis of a bidirectional time convolution network BiTCN, extracting long-term information related to the SOC of the battery in the basic characteristics on the basis of a BiLSTM network, extracting important characteristics related to the SOC of the battery in the long-term information on the basis of a Multi-Head Attention network, and calculating the SOC of the battery according to the extracted important characteristics. And outputting a predicted value of the SOC of the battery through the full connection layer. According to the invention, the estimation precision of the battery SOC can be improved.

A charge detection mass spectrometer includes an ion trap configured to store ions therein and to release stored ions therefrom, and an electrostatic linear ion trap (ELIT) array, in the form of at least two ELITs or ELIT regions each spaced apart from the ion trap, each ELIT or ELIT region including first and second ion mirrors and a charge detection cylinder positioned therebetween. The ion trap is controlled to release at least some of the stored ions to travel toward and into each of the ELITs or ELIT regions, and the first and second ion mirrors of each of the ELITs or ELIT regions is controlled in a manner which traps one or more ions traveling therein and causes the trapped ion(s) to oscillate back and forth between the first and second ion mirrors each time passing through and inducing a corresponding charge on the charge detection cylinder.

The invention relates to the technical field of live detection, in particular to a power distribution gap lightning arrester live detection result compensation algorithm, which comprises the following steps: acquiring a voltage signal and dividing a period section, extracting waveform characteristics to generate a mark set, identifying trend reversal to construct a sudden change section list, analyzing intersection point spacing to form an abnormal set, and calculating a power distribution gap lightning arrester live detection result. And tracking trend deviation to determine correction data, mapping a reference path to reconstruct a reference baseline, and completing conduction state correction recording. According to the method, the detection data of the operation state of the power distribution gap lightning arrester is processed, waveform segmentation marks of a continuous period are constructed, a reversal trend path and slope abrupt change characteristics are combined, potential interference is identified, an abnormal fluctuation area is formed, and a voltage recovery deviation trend is constructed and analyzed through a front window and a trend line segment; and the offset starting and ending points are positioned and the reference path is corrected, so that the reliability of detection data, the accuracy of state judgment and the adaptability of operation conditions are effectively improved.

The invention relates to the field of power grid power load detection, in particular to a power grid power load real-time detection method and system. The method comprises the following steps: acquiring load values of a power grid after preprocessing, constructing a load sequence, and labeling each load value; decomposing the load sequence based on VMD to obtain a plurality of modal components, classifying frequency values in any modal component into a normal class and an abnormal class according to labels, and calculating a first offset mean value of the normal class and a second offset mean value of the abnormal class; and training a preset network based on the calculated importance, inputting frequency values of a plurality of modal components of the real-time load value into the correspondingly trained preset network, outputting sub-probabilities, integrating all the sub-probabilities to obtain a state probability, and completing detection. According to the technical scheme, the precision of the charge detection result can be improved, and a guarantee is provided for safe operation of a power grid.

The invention relates to the field of data processing, in particular to a lithium battery charging data monitoring method and system. The method comprises the steps of obtaining feature sequences of historical charging data points, obtaining feature data of any dimension from the feature sequences of all the historical charging data points, calculating category consistency between the feature data of each dimension and the feature data of other dimensions, and determining a reference weight of the feature data of each dimension according to the category consistency; obtaining classification meticulousness of the feature data of each dimension, and obtaining a time sequence weight adjustment coefficient of the feature data of each dimension according to the classification meticulousness; and setting the weight of each clustering stage according to the time sequence weight adjustment coefficient and the reference weight, and enabling the weight of each clustering stage to participate in clustering iteration updating to complete clustering processing so as to realize anomaly detection of the charging data point at the current moment. The accuracy of charging detection is improved by improving the accuracy of clustering.

The invention relates to an intelligent light storage charging detection energy collaborative optimization control method and system. The method comprises the following steps: predicting a high-frequency fluctuation period of each charging station based on historical information; when photovoltaic power generation in the charging station is in a high-frequency fluctuation period at the current moment, the monitoring frequency of meteorological data is determined according to the average duration, predicted by the fluctuation prediction model, of each fluctuation, and a power supply mode is adjusted according to the meteorological data; and when the photovoltaic power generation in the charging station is not in the high-frequency fluctuation period at the current moment, judging that the monitoring frequency of the meteorological data is a fixed preset frequency. According to the invention, the monitoring frequency and the power supply mode are dynamically adjusted to cope with the fluctuation of photovoltaic power generation and the abnormity of meteorological data. The strategy optimization not only improves the stability and reliability of the system, but also reduces the operation cost and the impact on the power grid. The operation efficiency and stability of the charging station can be effectively improved, and the influence of photovoltaic power generation fluctuation and meteorological abnormity on charging of the electric vehicle is reduced.

The invention relates to the technical field of slag charge detection, in particular to urban ecological environment detection equipment which comprises a sampling barrel, a sampling mechanism and a material stirring part, the sampling barrel is sequentially divided into a plurality of sampling sections distributed at equal intervals and a sampling tip convenient for the sampling barrel to be inserted into a sample from top to bottom, and the sampling mechanism is arranged in the sampling section. The sampling ports in all the sampling sections are controlled by the operating rod to be switched among the three states of complete closing, semi-closing and complete opening, slag samples in a plurality of set heights are obtained through a single sampling process under the condition that the initial positions of the slag samples are not affected, and the problem of multiple sampling operations is avoided. Secondly, the slag samples around the sampling barrel are shifted by the shifting plate, and the slag samples around the sampling opening are scratched by the edge of the scratching strip, so that the taking process of the slag samples is assisted.

The invention relates to the technical field of battery replacement cabinet charging detection, and provides a charging detection method and system for batteries of a battery replacement cabinet. The method comprises the following steps: setting initial parameters according to layout information of a charging bin of a battery changing cabinet; determining a candidate strategy based on the initial parameters in combination with voltage overcharge protection and current overcurrent protection conditions; based on a candidate strategy, configuring a first regulation and control vector in a gain space in a stepped manner by direct-current voltage, and configuring a second regulation and control vector in a digital space in a stepped manner by a pulse width duty ratio; establishing a charging strategy search space through the two types of regulation and control vectors; and performing Pareto screening in the space to obtain a service life, efficiency and safety performance non-dominated solution set, and determining an optimal strategy, so as to solve the technical problem that safety, charging efficiency and cycle life optimization are difficult to consider in the charging process of the battery of the battery changing cabinet, and achieve the purposes of constructing a charging strategy search space through a multi-dimensional regulation and control vector and performing Pareto screening to obtain a charging strategy. The technical effects of prolonging the charging and discharging service life, improving the charging efficiency and improving the safety performance are achieved.

The invention discloses a charging pile internal temperature detection method, a charging detection system and a charging pile, and relates to the technical field of electric vehicle charging, the method comprises the following steps: obtaining a target data packet, and analyzing the target data packet to obtain a first parameter; acquiring a second parameter; the second parameter comprises the current environment temperature and the current charging power in the charging pile; obtaining a current compensation temperature based on a temperature compensation model, the first parameter and the second parameter; the temperature compensation model is used for indicating the relation among the compensation temperature, the charging power and the environment temperature; obtaining a target voltage, and determining a target temperature of a detection point of the charging pile based on the target voltage; and determining the actual temperature of the detection point according to the current compensation temperature and the target temperature. According to the method, the detection precision is improved through temperature compensation, and charging safety is guaranteed.

The invention provides a lithium battery state-of-charge rapid detection method, and belongs to the technical field of lithium battery detection.The lithium battery state-of-charge rapid detection method comprises the steps that the surface temperature and the initial end voltage of a to-be-detected lithium battery are collected, and the internal resistance growth rate and the capacity fading rate are obtained through a pulse discharge test to evaluate the health state grade; carrying out impedance measurement on the characteristic frequency points to obtain impedance real part and imaginary part data to form a characteristic frequency impedance vector, extracting a statistical moment characteristic vector, inputting a battery state topology reasoning model to output a primary charge state estimation value and local area charge state distribution, extracting auxiliary characteristics in a low-resolution interval to carry out dynamic correction, and judging whether to increase the measurement frequency points according to the confidence interval width. The method solves the technical problems that the lithium battery state-of-charge detection is insufficient in estimation precision and cannot quantify the uncertainty when facing health state degradation and a low-resolution interval.

The present application relates to a kind of new energy vehicle operation safety detection system and charging detection method, it is related to new energy vehicle detection technical field, solve the technical problem of small use range of new energy vehicle operation safety detection equipment in prior art.The new energy vehicle operation safety detection system includes: solar module, battery module, inverter, charging module, control system, direct current charging gun, communication module, charging detection module, display module and 220V power module.The new energy vehicle operation safety detection system of the present application uses high-power battery pack as power supply, and can detect the safety of power storage battery, drive motor, electric control system and electrical safety of new energy vehicle, compared with the prior art using 380v industrial power grid as power supply, since there is no grid restriction, increase the use range and flexibility of new energy vehicle operation safety detection equipment.

The present invention relates to a factory metrological verification and traceability device for a charging detection system of a charging pile, which includes a standard charging pile and a metering device; the metering device includes a communication simulator, an operation processor, a data interface, an electric energy metering module and an analog battery, and the electric energy metering module includes a fixed cable, a current transformer, a voltage transformer and an electric energy metering chip; the present invention takes the standard charging pile as a benchmark. During use, the metering device first charges from the standard charging pile. After charging a specific amount of electricity, the measured value of the electric energy metering module in the metering device is compared with the displayed value of the standard charging pile, and the measured value of the metering device is corrected by using the displayed value of the standard charging pile. Then, the metering device is connected to the charging pile to be tested and charged. After charging a specific amount of electricity, the charging pile to be tested is corrected by using the measured value of the metering device. The present invention can effectively perform traceability detection on the charging piles that are already in use, so that the charging piles can still maintain accuracy after long-term use.

This invention discloses a live-line detection device and method for partial discharge in GIS (Gas Insulation System), relating to the field of live-line detection of power equipment. The equivalent capacitance between the primary and secondary windings of a current transformer coil is used as a pulse signal coupling channel. Two sets of pulse current signals within the high-voltage conductor of the GIS are acquired through these two pulse signal coupling channels. Then, the partial discharge voltage signal of a specified frequency is extracted through a pulse partial discharge detection circuit. The two extracted pulse signals are output to a differential mode comparison and acquisition module. This module compares the pulse signals input from the two channels, effectively eliminating interference signals. This invention simultaneously solves two problems in GIS live-line partial discharge pulse detection: pulse coupling and high-voltage side partial discharge interference during live operation. It achieves accurate detection of partial discharge during GIS operation, ensuring the safe and stable operation of GIS electrical equipment.

The utility model discloses a voltage regulation circuit for photovoltaic power generation, which relates to the technical field of photovoltaic power generation and comprises a photovoltaic module for photoelectric conversion; the voltage regulation module is used for voltage stabilization regulation; the output control module is used for filtering and output superposition control; the charging and discharging module is used for controlling transmission of electric energy and controlling energy storage and discharging work of the energy storage module; the boost control module is used for carrying out full charge detection on the energy storage module and controlling the charge and discharge module to carry out discharge control; and the output module is used for receiving electric energy. The voltage regulation circuit for photovoltaic power generation can carry out voltage stabilization regulation, when the voltage regulation module stops power supply, the energy storage module carries out standby power supply, power supply requirements are met, power supply efficiency is improved, and when voltage boosting is needed and the energy storage module is fully charged, superposition processing is carried out in cooperation with electric energy voltage output by the output control module and the voltage regulation module. Therefore, required electric energy is provided for the output module, and the power supply voltage range is improved.

A charge detection mass spectrometer includes: an ion trap configured to receive and store ions therein and selectively release the stored ions therefrom; and an electrostatic linear ion trap (ELIT), the electrostatic linear ion trap (ELIT) being spaced apart from the ion trap, the ELIST comprising a first ion mirror and a second ion mirror and a charge detection cylinder positioned therebetween; and means for selectively controlling the ion trap to release at least some of the stored ions therefrom to travel toward and into the ELIST, and for controlling the first ion mirror and the second ion mirror in a manner that captures in the ELIST a single of the ions traveling therein, and causing the trapped ions to oscillate back and forth between the first ion mirror and the second ion mirror each time the trapped ions pass through the charge detection cylinder and a corresponding charge is induced thereon.

A power storage device is provided with: a first semiconductor switch (55a) and a second semiconductor switch (55b) provided in series on a power line (53b) between a power storage element (3) and a negative terminal (52); an OFF control switch (Q2) connected to the first and second semiconductor switches (55a, 55b) and configured to simultaneously turn off the first and second semiconductor switches (55a, 55b) when the management means detects an abnormality in the power storage element (3); and an external charging detection unit (56a) that detects that the positive terminal (51) and the negative terminal (52) are connected to an external power supply (80), and simultaneously turns on the first and second semiconductor switches (55a, 55b).

The invention relates to the technical field of thermal degradation monitoring, in particular to an electrical equipment insulating material thermal degradation monitoring and early warning method and system based on multi-source data, and the method mainly comprises the steps: outputting a first monitoring node with a risk at present through a thermal degradation early warning model based on current target data, and detecting a target loop with abnormal current based on the residual electric quantity, acquiring a second monitoring node on the target loop, and judging whether the target gas types of the target monitoring node all belong to the standard gas type or not. According to the method, the possibility of false alarm of the current detection point is reduced by analyzing the gas possibly volatilized by the current monitoring node, and all the current monitoring nodes are evaluated based on the obtained sorting result and the early warning value to obtain a processing sequence for a worker to refer to; therefore, more serious accidents caused by the fact that emergency monitoring nodes are not processed preferentially can be avoided as much as possible.

The application discloses a GIS insulator partial discharge charge on-line detection method and system, and relates to the technical field of charge detection.The method comprises the following steps: according to a GIS simulation model, simulating the electric field distribution of charge generation in the partial discharge process, determining the performance index of the required electric field sensing probe, and preparing the electric field sensing probe; according to an epoxy resin model, obtaining the charge density, the charge distribution range and the electric field signal collected by the electric field sensing probe under different voltage pulses, and constructing a test data set; according to the GIS simulation model, obtaining the electric field signal under different charge densities and different charge distribution radii, and constructing a training data set; training a neural network model according to the training data set, and correcting according to the test data set; and collecting the partial discharge electric field signal by using the electric field sensing probe array arranged on the outer wall of the GIS insulator, and obtaining the charge density and the charge distribution range on the surface of the insulator by using the neural network. Non-invasive and non-contact on-line measurement is realized.

The invention relates to a charging protection circuit, a charging detection method and device, electronic equipment and a medium, and the charging protection circuit comprises a control circuit which is used for being coupled with a plurality of functional terminals of the electronic equipment, and is used for detecting whether the impedance between the functional terminals is abnormal or not, and each functional terminal is used for being coupled with charging equipment; the first end of the first pull-down circuit is coupled between the first end of the control circuit and a communication terminal in the function terminals, the second end of the first pull-down circuit is used for being coupled with a grounding end, the control end of the first pull-down circuit is coupled with the second end of the control circuit, and the first pull-down circuit is used for enabling the control circuit to communicate with charging equipment; the first end of the second pull-down circuit is coupled between the first end of the control circuit and the communication terminal, the second end of the second pull-down circuit is used for being coupled with the grounding end, the control end of the second pull-down circuit is coupled with the third end of the control circuit, and the second pull-down circuit is used for enabling the charging equipment to stop outputting electric energy. Through the second pull-down circuit, the charging equipment can stop outputting electric energy to protect the electronic equipment, so that the risk that the electronic equipment is damaged is reduced.

The invention discloses an intelligent circuit breaker rapid tripping protection method and device based on illegal charging detection, electronic equipment and a storage medium. The method comprises the steps of S1, monitoring and collecting related charging data of charging equipment through an intelligent circuit breaker; s2, carrying out preprocessing and feature extraction on the collected related charging data; s3, introducing a fault category tree to construct illegal charging symptom descriptions, defining a group of illegal charging symptom descriptions, and constructing a data attribute collaboration mechanism; s4, for the fault type of illegal charging, training an intelligent identification model on the labeled data set; s5, performing real-time monitoring and illegal charging detection, inputting features into the intelligent identification model, and detecting different illegal charging; and S6, if illegal charging is detected, performing an action according to the illegal charging type, and otherwise, returning to the step S5. The state of the charging pile can be monitored in real time, illegal charging behaviors can be accurately recognized, the charging safety of residents is guaranteed, and the utilization rate of the charging pile is increased.

The utility model provides a mobile DR flat panel detector charging detection device comprising a battery module used for supplying power to a mobile DR control module; the flat panel detector charging module is used for performing in-place detection on the flat panel detector and feeding back a signal to the mobile DR control module, charging the flat panel detector under the control of the mobile DR control module, and feeding back the charging state of the flat panel detector to the industrial personal computer module; the industrial personal computer module is used for displaying the charging state in real time for an operator to perform man-machine interaction, and is used for receiving the charging state information sent by the flat panel detector charging module and feeding back the charging state information to the mobile DR control module; and the mobile DR control module is used for controlling the flat panel detector charging module to charge the flat panel detector and performing data transmission with the industrial personal computer module according to the in-place detection result. According to the utility model, the charging process of the flat panel detector can be effectively monitored and protected, so that the service life of the flat panel detector is prolonged.

A charge detection mass spectrometer (CDMS) comprises an electrostatic sector field ion trap 40, an inductive image charge detector 400 and a fragmentation device. The electrostatic sector field ion t

The embodiment of the application discloses a parameter acquisition method of an oscillation waveform detection system, relates to the technical field of power system control, and accurately acquires the equivalent resistance value, the equivalent inductance value and the equivalent distributed capacitance value of a winding of a transformer to be measured, the output voltage of a high-voltage direct-current power supply, the maximum input voltage of a data acquisition module, the maximum charging current value allowed by a charging detection loop and the like, and based on the indexes, the first capacitance value of a parallel capacitor, the second capacitance value of a voltage division capacitor, the third capacitance value of a measurement capacitor and the resistance range of a current limiting resistor in the oscillation waveform detection system are acquired, the uncertainty caused by empirical design is avoided, the quality of generated oscillation waveforms is ensured to be stable and controllable, consistent and reliable detection results on transformers of different capacities and voltage grades are ensured, and the accuracy and universality of the oscillation wave detection method in practical application are improved.

The utility model provides a battery capacity control circuit and a battery capacity control device, the battery capacity control circuit comprises a power supply circuit, a detection interface, a charging detection circuit, a charging control circuit, a discharging detection circuit, a discharging control circuit and a discharging circuit, the input end of the charging detection circuit is electrically connected with the battery discharging terminal of the detection interface; the output end of the charging detection circuit is electrically connected with the control end of the charging control circuit, the power input end of the charging control circuit is electrically connected with the power supply circuit, the power output end of the charging control circuit is electrically connected with the battery charging terminal of the detection interface, and the input end of the discharging detection circuit is electrically connected with the battery discharging terminal. The output end of the discharge detection circuit is electrically connected with the control end of the discharge control circuit, the input end of the discharge control circuit is electrically connected with the battery discharge terminal, and the output end of the discharge control circuit is electrically connected with the discharge circuit. The battery capacity control circuit provided by the utility model can be used for conveniently controlling the battery capacity of an electronic product.

The invention discloses a suspension type charging device and an in-situ detection system thereof, and relates to the technical field of charging piles, the suspension type charging device comprises a charging pile body, a detection robot and a suspension bag; the detection robot is arranged at the bottom of the charging pile body in a detachable connection mode and used for walking on the seabed and conducting in-situ detection. The suspension bag is of an annular bag body structure and is used for providing buoyancy to enable the charging pile body to float on the sea surface or suspend at the water bottom; the charging pile body is fixed to the middle of the suspension bag and used for charging the detection robot. When the detection robot sinks to the seabed for in-situ detection, the detection robot is electrically connected with the charging pile body through the charging wire for charging; the technical effects that buoyancy adjustment is accurate, flexibility is improved, offshore attitude stability is improved, functions are diversified, and suspension stability is improved during offshore charging can be achieved.

The invention relates to the technical field of power electronic control, and discloses a direct-current port charging control method of a portable energy storage power supply and a storage medium, under the condition that the portable energy storage power supply is charged and started, a preset input voltage reference value is dynamically adjusted according to a preset interval time length, so that when the input voltage reference value is adjusted each time, the direct-current port charging control method of the portable energy storage power supply is started; a group of input data under a corresponding input voltage reference value condition is respectively collected, and then all input voltage change values, all input current change values, all input power change values and charging evaluation parameters which are obtained through comparison are combined, so that the input type corresponding to the input signal of the direct current port can be accurately identified. Therefore, the direct-current port is switched to the adaptive charging mode, flexible charging management of the portable energy storage power supply is realized, diversified charging requirements of the portable energy storage power supply can be met, charging interruption or restart power-off recovery of the portable energy storage power supply is not needed in the whole process, and the stability and reliability of charging detection of the direct-current port are improved.

The present invention relates to the field of power electronic control technology and discloses a DC port charging control method and storage medium for a portable energy storage power supply. When the portable energy storage power supply is charging and turned on, a preset input voltage reference value is dynamically adjusted according to a preset interval duration, so that each time the input voltage reference value is adjusted, a set of input data under the corresponding input voltage reference value condition is collected respectively. Then, by combining all input voltage change values, all input current change values, all input power change values ​​and charging evaluation parameters obtained by comparison, the input type corresponding to the input signal of the DC port can be accurately identified, thereby switching the DC port to an adaptive charging mode, realizing flexible charging management of the portable energy storage power supply, and being able to meet the diverse charging needs of the portable energy storage power supply. The entire process does not require the portable energy storage power supply to interrupt charging or restart and recover, thereby improving the stability and reliability of DC port charging detection.

The invention discloses a new energy automobile operation safety detection system and detection method, belongs to the field of new energy automobile detection, and aims to solve the problem of incomplete new energy automobile operation safety detection items in the prior art. The new energy automobile operation safety detection system comprises an OBD reading module, an electrical detection module, a direct current charging module, a charging detection module, a battery pack sealing detection module, an industrial personal computer, a host and a cloud server. According to the new energy vehicle operation safety detection system and detection method, the battery pack sealing detection module is arranged, the thermal imager and the convolutional neural network are utilized to perform sealing detection on the battery pack on the vehicle, the leakage type can be identified, and the detection accuracy is improved by utilizing an infrared image processing technology. The influence of a complex structure and a complex detection working condition is reduced, the recognition accuracy of the convolutional neural network model is improved, and then the battery pack sealing detection precision is improved.