187 results about "Energy metering" patented technology

The invention discloses an electric power measurement data management system based on cloud edge collaboration and an electric quantity distributed acquisition method, and relates to the technical field of electric power information acquisition and processing. The system comprises an intelligent electric meter terminal layer, an edge computing node layer, a regional collaborative gateway layer and a cloud data center. The intelligent terminal can dynamically adjust the sampling frequency according to the load change rate and the historical volatility, and identifies abnormity through an LSTM-ATT model; the edge nodes realize prediction caching based on Kalman filtering and RMSE judgment; the regional gateway executes dynamic time warping and consistency arbitration of topological weighting; and the cloud end completes digital twinborn modeling and exception evidence storage. According to the method, the real-time performance and accuracy of electric power data acquisition are improved, the communication bandwidth occupation is reduced, the system abnormity sensing capability and the operation stability are enhanced, and the method is suitable for an intelligent power distribution network and a distributed energy metering scene.

The invention relates to an energy digital metering monitoring and tracking method and system, and relates to the technical field of energy digital management, and the method comprises the steps: deploying a plurality of energy metering terminals in a physical energy network to collect energy consumption data in real time, and executing local energy carbon emission metering through an embedded carbon emission calculation assembly; uploading a metering result to a cloud monitoring center, and constructing a virtual mapping model based on a digital twinning technology in combination with topological information of a physical energy network; synchronizing the measurement data to the virtual mapping model, and performing visual tracking on the measurement data in combination with topology analysis and a particle tracking technology to generate an energy flow dynamic visual map; carbon emission footprint traceability tracking is carried out according to the atlas, and energy digitization metering is realized based on a traceability result. According to the invention, the problems of insufficient energy metering precision and incomplete carbon footprint traceability caused by the lack of dynamic visual tracking means due to the fact that differential adaptation is not carried out in combination with metering characteristics in traditional energy metering monitoring are solved.

The invention discloses a natural gas calorific value test result correction method, system, equipment and medium, and relates to the technical field of natural gas analys.The method comprises the steps that according to the initial calorific value, the carbon dioxide content and the relative density obtained through testing and pressure data and temperature data of a test point, the first nitrogen content is obtained through calculation based on an S-GERG88 state equation; calculating a first calorific value by using the first nitrogen content and the initial calorific value, and performing iterative calculation according to the first calorific value to obtain a second nitrogen content until the absolute value of the difference between the second nitrogen content and the first nitrogen content is smaller than a preset value; determining the first calorific value corresponding to the obtained second nitrogen content as a target calorific value; through an iterative algorithm, the accuracy of a natural gas calorific value test result and a natural gas working condition compression factor calculation result through the laser absorption spectrometry can be greatly improved, and then the path reliability and applicability of natural gas energy metering through the laser absorption spectrometry are improved.

The invention discloses a volume correction instrument error analysis method and system based on an improved PE equation, and aims to improve the accuracy of fuel gas and biogas metering. According to the equipment, performance testing can be carried out under the conditions of different temperatures (20 DEG C to 40 DEG C) and pressures (101.3 kPa to 104.0 kPa) through an integrated fuzzy logic algorithm, and the average correction error is only 0.22%. A high-precision sensor and a data processing unit are used for monitoring and calibrating the gas volume in real time and compensating the influence of temperature and pressure changes. The fuzzy logic controller adjusts the reading of the gas meter according to real-time data, the accuracy of a metering result is ensured, algorithm optimization and intelligent equipment integration are focused, and the energy management efficiency is improved. The volume correction instrument provides help for a modern energy metering system and optimization of energy efficiency and cost.

The invention discloses a multivariate data access and fusion resident community energy metering device, and the device comprises a data collection module which is used for collecting multi-energy data in a resident community through a plurality of communication interfaces, the energy comprises electricity, water, gas and heat, and the communication interfaces support RS485, NB-IoT, LoRa, Zigbee and Wi-Fi; an edge calculation module connected with the data acquisition module and used for preprocessing the acquired multi-energy data, including data format standardization, time sequence reconstruction and preliminary anomaly detection; the data fusion module is connected with the edge calculation module and is used for performing multi-dimensional modeling and data fusion on the multi-energy data based on a deep learning algorithm; compatible access of multi-energy equipment such as electricity, water, gas and heat is realized through modular design, real-time processing, intelligent analysis and user-friendly interaction of energy data are realized by adopting edge computing and deep learning technologies, and technical support is provided for development of smart communities and green buildings.

The invention discloses an on-line fault diagnosis method and system for a heat meter, and relates to the technical field of energy metering. When the system is operated, data are collected and preprocessed in real time through an integrated sensor group, key features are extracted to form a feature vector FVEC, and an on-line anomaly detection algorithm and a fault type judgment model are utilized to determine the fault type of the heat meter; and an anomaly detection index AS and a fault feature probability index TYP are accurately calculated. The data not only can reflect the health state of the system in real time, but also can further optimize a response strategy and fault judgment by executing an iteration module, so that the system has self-diagnosis and self-adaptive adjustment capabilities. The optimization process can effectively overcome the defect that a traditional heat meter system cannot process and detect faults online in real time, the accuracy and response speed of fault recognition are improved, equipment damage or energy waste caused by delayed detection is avoided, and then continuous and stable operation of the system is ensured.

This invention belongs to the field of metering box technology, specifically a fireproof energy metering box. It includes a metering box body, a moisture-proof mechanism located on the upper right side wall of the metering box body, and a pressure relief mechanism located on top of the moisture-proof mechanism. The pressure relief mechanism includes a shell, with a limiting plate fixedly connected inside the shell. A ball groove with a tube groove is formed at the center of the limiting plate. A blocking ball is placed on top of the limiting plate, and the blocking ball is adapted to the ball groove. A connecting rod is fixedly connected to the top of the blocking ball, and a fixing spring is connected to the top of the connecting rod. During heat dissipation, the airflow pushes the blocking ball upwards, allowing heat to escape through the louvers. In case of fire, the blocking plate closes, and the fixing spring pushes the blocking ball downwards to block the ball groove. When the internal pressure is too high, the airflow pushes the blocking ball upwards, achieving pressure relief inside the metering box and solving the problem of increased pressure and explosion risk during a fire.

The invention relates to the technical field of detection and calibration, and particularly discloses an efficient flowmeter detection and calibration method based on gravitational potential energy, which comprises the following steps: S1, building a detection and calibration device which comprises a height-adjustable water tank, a capacitance liquid level sensing unit, a water inlet control unit, a flow regulation and calibration unit and a control and display unit; s2, liquid level signals in the height-adjustable water tank are collected in real time through a capacitance liquid level sensing unit and fed back to a control and display unit, the control and display unit regulates and controls an execution element of a water inlet control unit, and the liquid level difference in the water tank is stably controlled within a preset threshold value; and S3, the installation height of the height-adjustable water tank is adjusted to change the gravitational potential energy of the fluid. The method effectively solves the problems of poor range adaptability, insufficient precision, low efficiency and the like in the existing flowmeter calibration technology, has universality, stability, high precision and high efficiency, and is suitable for flowmeter batch calibration scenes in the fields of industrial production, energy metering and the like.

The utility model discloses a remote control and energy metering device based on a refrigerated container, and relates to the field of electricity metering of the refrigerated container, the remote control and energy metering device comprises a power supply line connected with a plug-in cable and a relay joint movably arranged between the power supply line and the plug-in cable, and the power supply line is provided with a current and voltage detector. The power supply circuit and the current and voltage detector are both integrated in the shell, the shell is internally provided with a guide assembly which abuts against the relay connector in a sliding mode, and the tail end of the guide assembly is in magnetic fit with a disconnection driving assembly. The occupied area is reduced, and current and voltage detection is carried out in real time to ensure the control of stable power supply of the refrigerated container; the electromagnet is powered on through the controller, so that magnetic repulsive force is generated between the electromagnet and the lifting block, then the guide block and the guide slope generate oblique pushing, and the relay connector and the plug cable are made to be away from the power supply line to form an open circuit.

The invention belongs to the technical field of measurement, and particularly relates to a natural gas energy metering method and system based on the Internet of Things. The management platform executes and responds to the query request of the user platform, obtains the second detection parameter of the user side, predicts the second energy data by using the deep neural network model, obtains the first detection parameter of the pipe network side and the corresponding energy data to dynamically update the model, and corrects the preset algorithm parameter through the interpolation function and the machine learning model. And constructing a working condition and abnormal probability threshold mapping relation by utilizing a logistic regression model to realize dynamic judgment of abnormal equipment. The system comprises a model dynamic updating module, an algorithm parameter correction module and an abnormal threshold dynamic generation module. The method optimizes the generalization ability of the prediction model, improves the adaptability of the preset algorithm, achieves the dynamic adjustment of the abnormal judgment threshold, improves the accuracy of natural gas energy metering and the reliability of the system, and reduces the operation cost.

The invention provides a self-adaptive error correction method for dynamic electric energy metering, and belongs to the technical field of artificial intelligence and electric energy metering crossing. The method comprises the steps of S1, performing training, compression, deployment and drift compensation training on a created self-adaptive error prediction model; s2, the electric energy metering device collects real-time operation data and inputs the real-time operation data into the self-adaptive error prediction model to obtain an error prediction result, and self-adaptive error correction is executed based on the error prediction result to obtain a corrected metering value; s3, performing digital signature and encryption on the error prediction result and the corrected metering value to obtain a metering data packet, and transmitting the metering data packet to a server after block chain evidence storage; and S4, the server decrypts and verifies the metering data packet to obtain an error prediction result and a corrected metering value, and encrypts and stores the corrected metering value. The electric energy metering error correction method has the advantages that the accuracy, timeliness, reliability, convenience and safety of electric energy metering error correction are greatly improved.

The invention belongs to the technical field of natural gas measurement, particularly provides a metering device capable of realizing high-precision natural gas metering and effectively compensating environmental interference, and particularly relates to a natural gas energy metering device. The device mainly comprises a front-end rectification unit, a flow metering unit, a component analysis unit, an environmental parameter monitoring and compensation unit and a data processing and control unit. The front-end rectification unit stabilizes gas flow and improves measurement precision, the flow metering unit accurately measures flow data and adjusts gas flow and pressure in a pipeline in real time according to feedback signals, the component analysis unit analyzes components and transmits data in real time, and the environmental parameter monitoring and compensating unit collects environmental parameters in real time and corrects metering data. The device can effectively reduce gas flow and environmental interference, improve the metering precision and meet the requirements of different working conditions, and is of great significance to development of the natural gas industry.

The invention discloses a data set extraction method and system for an electric energy metering and collecting equipment evaluation model, and relates to the field of big data driven electric energy collecting equipment health state evaluation, and the method comprises the steps: retrieving an equipment identification number in a database according to an equipment installation date and a user type; original time sequence data such as three-phase voltage, current, power, power factors and active electric quantity are extracted; and key parameters such as voltage, current fluctuation ratio, current reverse polarity and electric quantity difference rate are calculated based on the cleaned data, and forward active increment and total reverse active data are expanded. And aligning and combining all data according to a time sequence, and performing slicing processing and label endowing based on a health state evaluation rule. According to the method, the problems of data acquisition time sequence splitting, low data quality and no label are solved, the data quality is improved through a scientific index system, a structured data set efficiently supporting deep learning model training is formed, and intelligent evaluation of the health state of the electric energy metering acquisition equipment is assisted.

The present application relates to the technical field of short circuit detection, and provides an alternating current charging pile charging socket short circuit detection circuit and a detection method thereof. The alternating current charging pile charging socket short circuit detection circuit comprises: a charging circuit connected to a power frequency alternating current power supply, wherein the charging circuit comprises an alternating current energy metering circuit, a relay and a power socket connected in series; a detection circuit connected in parallel to both ends of the relay; and a control circuit connected to the alternating current energy metering circuit and the relay respectively. The alternating current charging pile charging socket short circuit detection circuit provided by the present application fundamentally avoids the charging pile failure caused by the load short circuit of the power socket, and reduces the operation and maintenance cost of the product.

The invention provides an industrial manufacturing enterprise-based energy measurement management method and related equipment, which can be used for analyzing and managing various energy consumption of a large industrial manufacturing enterprise. The method comprises the steps that N energy metering points corresponding to a target manufacturing enterprise are determined, N is an integer larger than or equal to 1, and the energy metering points correspond to energy consumption equipment in the target manufacturing enterprise; periodically acquiring encrypted energy data of each energy metering point in the N energy metering points; determining a key corresponding to each energy metering point in the N energy metering points; decrypting the encrypted energy data of each energy metering point based on the key to obtain decrypted energy data corresponding to each energy metering point; and analyzing the decrypted energy data corresponding to each energy metering point to obtain energy analysis information of each energy metering point in the current period, and outputting the energy analysis information in the current period.

The application discloses a cleaning method for communication collection data of energy consumption metering instruments in a cigarette factory, which comprises the following steps: obtaining a meter code value B2 collected this time; judging whether the meter code value B2 collected this time is less than a last time archived meter code value B1; if yes, determining a meter code value B and a consumption Y in a time interval between two times of collection according to whether the metering instrument is full of a range; if no, judging whether the consumption Y in the time interval between the two times of collection is normal according to a time period in which the collected data is located, and determining the meter code value B and the consumption Y in the time interval between the two times of collection according to a judgment result of the consumption Y. The cleaning method for communication collection data of energy consumption metering instruments in a cigarette factory can automatically clean and correct when factory energy metering collection data is abnormal, and can guarantee orderly promotion of energy saving and emission reduction work.

The application discloses a heat meter online fault diagnosis method and system, and relates to the technical field of energy metering.The system runs, real-time data collection and preprocessing are realized through integrated sensor groups, key features are extracted to form a feature vector FVEC, and an online anomaly detection algorithm and a fault type judgment model are used to accurately calculate an anomaly detection index AS and a fault feature probability index TYP.These data can not only reflect the health status of the system in real time, but also further optimize the response strategy and fault judgment by executing an iteration module, so that the system has the ability of self-diagnosis and adaptive adjustment.This optimization process can effectively solve the problem that the traditional heat meter system cannot realize online real-time processing and fault detection, improve the accuracy and response speed of fault identification, avoid equipment damage or energy waste caused by delayed detection, and further ensure the continuous and stable operation of the system.

The utility model discloses a flow measuring device which comprises a first flow meter, a second flow meter and a flow monitoring device which are arranged in a pipeline, the measuring range of the first flow meter is larger than that of the second flow meter, the flow monitoring device is used for detecting the flow in the pipeline, and a preset value is set in the flow monitoring device. The preset value is smaller than the measuring range of the first flowmeter; the flow monitoring device has two states, when the actual flow in the pipeline is larger than a preset value, the flow monitoring device is in the first state, and when the actual flow in the pipeline is smaller than the preset value, the flow monitoring device is in the second state. The medium flow can be respectively and accurately measured regardless of the size of the medium flow, the phenomena of flow measurement errors and distortion are eliminated, energy measurement is more accurate, and cost analysis is specific and easy to control.

The invention discloses a tidal current direction judgment method and system, an electric energy meter, a fusion terminal and a medium, relates to the technical field of electric power metering, and effectively solves the problem of electric energy mismetering caused by the fact that a traditional metering method cannot distinguish transient fluctuation and stable steering when the tidal current direction is frequently switched by introducing a buffer mechanism and stability monitoring. According to the method, transient tidal current direction change caused by instantaneous disturbance or jitter near a critical point in a power grid can be filtered out, and it is ensured that only the tidal current direction subjected to stable judgment is used for electric energy metering, so that the accuracy and reliability of electric energy metering in a distributed power supply access scene are remarkably improved; the method is mainly a software algorithm innovation, the hardware structure of the existing electric energy meter or fusion terminal does not need to be changed, the method can be realized through firmware upgrading, the implementation cost is low, and the compatibility is high.

The invention relates to the technical field of energy consumption detection, and particularly discloses a building energy consumption management platform which comprises a server and a plurality of energy consumption metering devices, the energy consumption metering devices are used for collecting energy consumption data of all floors of a building and uploading the energy consumption data to the server, and the server comprises a device interface module used for receiving and storing the energy consumption data uploaded by the energy consumption metering devices; the OA interface module is used for being connected with an office system of an enterprise to which the current building belongs, and obtaining work information of enterprise employees corresponding to the current building from the office system; and the energy consumption analysis module is used for analyzing the energy consumption condition of each floor in different time periods according to the energy consumption data and the working information at each first preset time, and generating an energy consumption analysis result. By adopting the technical scheme of the invention, the energy consumption characteristics in different personnel activity scenes can be accurately identified.

This invention discloses a single-phase multi-position metal energy metering box and its installation method, belonging to the field of electrical equipment technology. It includes a box body, a detachable rainproof cover fixed to the top of the box body, a rear wall with a vent, a detachable filter screen installed at the vent, a bottom plate with a drainage area, and a hinged door. The rainproof cover folds downwards around its perimeter to form an annular rainproof section, creating an annular ventilation cavity between it and the top of the box body, achieving top ventilation and rain protection. The vent on the rear wall faces the wall and is located within the projection range of the annular rainproof section. The rear wall is stamped to form an outwardly protruding flow-guiding structure, with downwardly sloping flow-guiding grooves between adjacent protrusions, forming a rear ventilation gap with the wall. The drainage area of ​​the bottom plate has a water collection trough, a drainage hole, and a water-blocking cap. The door has a sealing strip and a flow-guiding groove. This invention, through integrated innovation of the box body structure, systematically solves the problems of rainproofing, heat dissipation, drainage, and filter maintenance of outdoor metering boxes.

The invention provides a green accommodation resource management method and system based on real-time metering and abnormal behavior recognition, and relates to the technical field of energy metering. According to the invention, water consumption, electricity consumption and water temperature data of guest rooms are collected, cold and hot water flow is decomposed, heat energy consumption is calculated, and continuous water consumption abnormity identification and linkage valve control treatment are realized; accumulating energy consumption according to a statistical time period based on the check-in record, converting a guest room carbon emission index, generating guest reward information when an energy-saving standard is met, and writing the guest reward information into a check-in account during check-out settlement; and comparing the total energy consumption of the hotel with the energy consumption summary difference value of the guest room to output an energy consumption abnormity positioning result. According to the invention, room-level energy consumption real-time metering, abnormity identification and energy-saving evaluation are realized, and the performability and accounting performance of green accommodation resource management are improved.

The utility model relates to a kind of metering box mounting structure of convenient installation and disassembly, to solve the technical problem that current electric energy metering box needs to be disassembled for maintenance after installation, needs to disassemble multiple bolts, thereby increase construction difficulty, cause the increase of construction cost and time, affect construction efficiency, comprising: box, the rear end of the box is equipped with fixed plate, the front end opening of the box is equipped with box door;Mounting structure, between box and fixed plate, realize the quick disassembly of box, the utility model is longitudinally inserted and is installed by the sliding fit of inverted T type guide rail and the connecting frame of box, can quickly complete the preliminary positioning of box and fixed plate, cooperate the two support plates of box bottom and top guide rail and form "three-point type" rigid support, the horizontal installation of support plate ensures that box is not inclined when bearing, cooperate the locking effect of limiting component, so that box is stably positioned on support plate, improve the stability of box installation.

System for controlling the loss of trading billing energy meters of the main transformer in a coal-fired power plant, characterized in that it includes a special measuring voltage component, a special measuring current component and a component for energy measurement: wherein the special measuring voltage component is used to convert the 220 kV bus voltage into a secondary measuring voltage based on a preset voltage conversion ratio, and a control cable is used to transmit the secondary measuring voltage to the electrical energy measuring device; The special measuring current component serves to convert the primary current flowing through the high-voltage switch of the main transformer station into a secondary measuring current based on a predetermined current conversion ratio, and uses a control cable to transmit the secondary measuring current to the energy measuring device via a control cable; wherein the energy measuring device is used to receive the secondary measuring voltage and the secondary measuring current in order to perform the calculation of energy consumption, thereby determining the actual energy produced by the generator in the coal-fired power plant.

This invention discloses a photovoltaic energy storage system, including a shared energy storage module, an inverter control module, and multiple energy metering modules. The shared energy storage module includes multiple energy storage batteries for storing electrical energy or supplying power to load modules. The inverter control module is connected to each photovoltaic power generation module, each load module, the shared energy storage module, and the power grid. It controls the electrical energy generated by each photovoltaic power generation module to supply power to each load module, store it in the shared energy storage module, or connect it to the power grid; the shared energy storage module supplies power to each load module. Each energy metering module is set up for each user, located between each user's photovoltaic power generation module, load module, and inverter control module, for detecting power generation and consumption. The inverter control module is configured to calculate absolute power generation or absolute power consumption based on power generation and consumption; accumulate pre-stored power based on absolute power generation and absolute power consumption; and control the power supply to each user based on the pre-stored power. This improves fairness and efficiency.

The invention belongs to the technical field of power equipment, and discloses an electric energy metering box with a heat dissipation waterproof sealing structure, the electric energy metering box comprises a box body, a top cover mechanism and a temperature sensor, the top cover mechanism and the temperature sensor are respectively arranged on the top and inside the box body, and a rainfall sensor is arranged on the top of the top cover mechanism. According to the scheme, airflow in rainy weather penetrates through the cover body, the flow guide cover and the partition piece, the pressure intensity between the cover body and the flow guide cover is smaller than that of the bottom of the box body, hot airflow in the box body can be pumped out through the opening in the top of the cover body and the filter screen, and external air can enter the box body through the electric fan and the drying part to be supplemented; according to the outdoor electric energy metering box, the cover body is driven by the lead screw motor and the filtering ventilation mechanism is driven to be exposed outside, and at the moment, hot air in the box body can be quickly discharged outwards through the filtering ventilation mechanism. Rainwater is easily blown into the box body by wind; and the heat dissipation effect in the box body is poor in high-temperature weather.

This invention provides a phase correction circuit, an energy metering device, and a corresponding method thereof. The phase correction circuit provided in this embodiment includes: a first delay module for receiving at least two input signals with asynchronous phases, and obtaining a first delayed signal by performing a first delay of M sampling intervals on the phase-leading signal based on a first phase difference between a phase-leading signal and a phase-lag signal among the at least two input signals; and a second delay module for performing a second delay of less than one sampling interval on the first delayed signal based on a second phase difference between the first delayed signal and the phase-lag signal; wherein M is a positive integer greater than or equal to 1, and the second delayed signal is phase-synchronized with the phase-lag signal. Using this invention not only enables more accurate and faster phase correction, but also simplifies the circuit design, ensuring high phase resolution without occupying a large circuit area.

This invention discloses a method and system for correcting energy metering errors in electric vehicle charging piles. The method includes collecting energy metering error data of charging piles under three-dimensional operating conditions (different power, temperature, and humidity) and constructing a three-dimensional operating condition error database; hierarchically filtering high-confidence neighbor points to be interpolated to obtain a standardized set of high-confidence neighbor points; calculating the radial distance between the standardized point to be interpolated and each standardized high-confidence neighbor point in the standardized set to optimize the interpolation width parameter of the radial basis function and dynamically selecting the basis function type; introducing error confidence to correct the weights of the radial basis function; and weighted summing the corrected radial basis function weights and the energy metering errors of the high-confidence neighbor point set to obtain the corrected energy metering error value for the point to be interpolated. This invention aims to achieve accurate and real-time energy metering error correction under all operating conditions to improve the reliability of charging pile metering.

The invention discloses an electric power metering load analysis system and method based on intelligent prediction, and relates to the technical field of electric power systems and energy metering, and the system comprises the following modules: a data collection and preprocessing module which is used for collecting electric power parameters and executing preprocessing; the power system diagram module is used for constructing a power system diagram; the feature prediction module is used for generating a prediction feature vector by improving the MTGNN model; the exception identification module is used for calculating an exception score and identifying an exception node; the exception optimization module is used for generating an exception node power parameter optimization report; and the deployment feedback module is used for deploying the abnormal node power parameter optimization report to a power management system. According to the method, the limitation that a static model is low in data processing efficiency and poor in adaptability in traditional electric power metering load analysis is broken through, and an efficient and intelligent solution is provided for operation and management of an intelligent power grid.

The invention relates to a hydrogen-doped natural gas pipeline operation parameter and energy tracking metering method and device, a medium and equipment. The method comprises the following steps that various parameters of a target natural gas pipeline, nodes, a station yard, a compressor and a user side are obtained and analyzed; according to the obtained parameters, a simulation model of hydrogen-doped natural gas pipeline energy metering is constructed; and calculating the total energy consumption or the total power of the hydrogen-doped natural gas pipeline according to the constructed simulation model for energy metering of the hydrogen-doped natural gas pipeline. According to the method, the hydrogen-doped natural gas pipeline can serve as a main research object, influence factors of hydrogen doping are considered as comprehensively as possible, and support and guidance can be provided for design, operation, control and analysis of hydrogen-doped conveying of a natural gas pipeline network.