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2637 results about "Smart meter" patented technology

A smart meter is an electronic device that records consumption of electric energy and communicates the information to the electricity supplier for monitoring and billing. Smart meters typically record energy hourly or more frequently, and report at least daily. Smart meters enable two-way communication between the meter and the central system. Such an advanced metering infrastructure (AMI) differs from automatic meter reading (AMR) in that it enables two-way communication between the meter and the supplier. Communications from the meter to the network may be wireless, or via fixed wired connections such as power line carrier (PLC). Wireless communication options in common use include cellular communications (which can be expensive), Wi-Fi (readily available), wireless ad hoc networks over Wi-Fi, wireless mesh networks, low power long range wireless (LoRa), ZigBee (low power, low data rate wireless), and Wi-SUN (Smart Utility Networks).

Intelligent ammeter fault real time prediction method based on decision-making tree

ActiveCN106054104AReflect real-time fault conditionsElectrical measurementsData dredgingSmart meter
Provided is an intelligent ammeter fault real time prediction method based on a decision-making tree, comprising the steps of: 1, pre-processing intelligent ammeter data of an electricity information acquisition system; 2, according to an intelligent ammeter fault determination model, screening the fault data of intelligent ammeters in the electricity information acquisition system and sending the fault data into an intelligent ammeter fault database; 3, dividing the historic data in the intelligent ammeter fault database into a training set and a test set, employing a decision-making tree algorithm to perform data excavation on the training set, and forming an intelligent ammeter fault decision-making tree and a preliminary classification rule; 4, through the data of the test set, performing accuracy assessment on the preliminary classification rule, determining the preliminary classification rule if the accuracy meets requirements, or else returning to the training set for training again; 5, generating an intelligent ammeter fault real time prediction model according to a finally determined classification rule; and 6, linking an intelligent ammeter real time fault database to the intelligent ammeter fault real time prediction model for real time prediction to obtain intelligent ammeter fault real time prediction results.
Owner:国网新疆电力有限公司营销服务中心 +1

Intelligent System for Collecting Readings From Electric Meters

An intelligent system for collecting readings from electric meters, comprising the following components: several electric meters, a data concentrator connected to the electric meters, and a system main station connected to the concentrator wirelessly, in which: the electric meter for recording the consumed quantity of electricity by user, metering the quantity of electricity, measuring demand and making a fault recording, and supporting a time-sharing measurement and communication with the data concentrator by electric power carrier; a concentrator for providing intelligent relay management, implementing the communication with the electric meters and the system main station, the management of communication route of electric meters and the storage function of data; the system main station for realizing a stable bi-directional communication with the concentrator and several electric meters, reading data in the concentrator, collecting information on electric energy, synchronizing the time of the concentrator and the electric meters associated therewith, renewing time step tariff rate and meter parameters of the electric meters. Bi-directional stable communication between the main station and the intelligent electric meters and collection of electrical energy information and the adjustment of parameters of electric meters can be realized by transmission medium in the present invention. The system of the present invention features complete functions, stable user-friendly operation interface, and has good expansion potential. Therefore this system is an important technical means for user-side management. The present invention greatly improves management efficiency and economic benefits in the electrical power department.
Owner:SHANGHAI JIULONG ELECTRIC POWER GROUP +1

Intelligent meter reading system

The invention relates to an intelligent meter reading system which comprises a plurality of electric meters, a collector and a main station of the system, wherein the electric meters are used to collect electric quantity of users, meter the electric quality, measure required quality and record incidents, supports time-sharing meter and communicates with data collector by a power line carrier; the collector is used for intelligent relay management, implementing communication with the electric meters and the main station of the system, communication routing management of the electric meters and data storage. The main station of the system is used to realize stable bidirectional communication with the collector and the plurality of electric meters, read data in the collector, collect electric energy information and configure the collector and time, period rate, and electric meter parameters of a low hanging electric meter. The invention realizes the sable bidirectional communication between the main station and the intelligent electric meters, electric energy information collecting and adjusting meter parameters by a transmission media. The intelligent meter reading system has the advantages of overall functions, stable operation, friendly interface and good expansibility, and is an important technical method for realizing user side management. The invention greatly improves the management efficiency and economic benefits of the power department.
Owner:SHANGHAI JIULONG ELECTRIC POWER GROUP +2

Automatic identification method and system of low-voltage power distribution network topology based on based on power frequency carrier communication technology

ActiveCN107483082ASolve the problem that the meter cannot be boundShort response timePower distribution line transmissionData switching networksDual modeTransformer
The invention discloses an automatic identification method and system of low-voltage power distribution network topology based on based on power frequency carrier communication technology. A concentrator and an automatic topology identification device are installed beside each transformer in a low-voltage distribution network court, the concentrator and the automatic topology identification device are connected by a 485 line, a dual-mode collector is internally or externally arranged on an intelligent electric meter of the low-voltage distribution network court, an intelligent power distribution network topology identification master station is installed in a power marketing center or a power operation and inspection department, then the intelligent power distribution network topology identification master station performs automatic identification via the above equipment, the automatic identification converts the newly established topology link relation table data into a geographical topology diagram and a logic topology diagram of the low-voltage power distribution network, updates the original geographical topology diagram and the original logic topology diagram of the court, and records a topology state change event. The automatic identification method and system disclosed by the invention are conducive to updating the data in real time and greatly improving the timeliness of operation and maintenance, and patrol and repair, and play an important role of improving the economic benefits of power enterprises.
Owner:HANGZHOU HARMONY TECH

Energy consumption integrated control system and method

The invention provides an energy consumption integrated control system and a method, which is used for energy conservation and measurement control in occasions such as a base station, a motor room, an office building and the like. The method is implemented as follows: collecting energy consumption subentry measurement data; collecting multiple environment parameters relevant to energy consumption equipment; collecting and storing the collected energy consumption subentry measurement data and the collected relevant multiple environment parameters; receiving, outputting and displaying energy conservation data of the energy consumption equipment obtained by comparing the energy consumption subentry measurement data in real time and receiving a control strategy obtained by analyzing and comparing the relevant multiple environment parameters; and sending a control command based on the control strategy to control the relevant energy consumption equipment to regulate relevant parameters so as to realize the aim of energy conservation. The energy consumption integrated control system comprises an intelligent ammeter, multiple sensors, a data collector, an analyzer, a controller, a controlled device and a display. By collecting environment parameters, analyzing the existing energy consumption systems and energy conservation effects brought by various energy conservation measures and equipment in real time, the energy conservation input-output ratio can be reflected clearly; and the energy conservation measures are regulated based on environment changes, thus realizing intelligent interaction of energy conservation equipment.
Owner:北京斯普信教育科技有限公司

Intelligent electric meter system for residents for intelligent smart grid

The invention discloses an intelligent electric meter system for residents for an intelligent smart grid. According to the intelligent electric meter system for the residents for the intelligent smart grid, one intelligent electric meter is arranged in home of each resident, two control terminals are respectively arranged on each controlled electric appliance and each user switch, and each distributed power supply is provided with a distributed power supply access device; each control terminal and the distributed power supply access device are interconnected through a PLC (Programmable Logic Computer) communication network, and the intelligent electric meter and a high-class measuring system AMI (Advanced Metering Infrastructure) carry out information interaction. The intelligent electric meter system is suitable for the residents having tiered pricing for electricity and time-sharing pricing for electricity, and aims at minimum electric charge expenditure of users, and is used for intelligently controlling the electric appliances and the distributed power supplies of the residents so as to realize peak clipping and valley filling of the electric charge, and provide power supply quality and power supply reliability.
Owner:SHANDONG INST OF BUSINESS & TECH +2

Running error and running diagnosis analyzing method and system for intelligent electric meter

ActiveCN107462863AEnable remote diagnostic evaluationImprove maintenance efficiencyElectrical measurementsPower usageSmart meter
The invention discloses a running error and running diagnosis analyzing method and system for an intelligent electric meter. The method comprises the following steps: correspondingly acquiring user profiles and electricity consumption data based on preset cycle, wherein the electricity consumption data comprises electricity supply quantity data of an assessed electric meter of a court under at least one cycle, and electricity consumption data of corresponding user electric meter; building an error calculating model according to the electricity quantity data and user profile relational data; analyzing the electricity supply quantity data of the assessed electric meter of the court and the electricity consumption data of the corresponding user electric meter through the error calculating model; monitoring the running analyzing progress, the data processing process and the data analyzing result of the error calculating model; and displaying through Web. According to the method, the big data technology is adopted, and the courts are treated as the units, and on that basis, the wire loss of the courts and the running error of each intelligent meter in each courts can be researched, thus the maintenance efficiency of the intelligent electric meter can be greatly improved, and the operation cost can be decreased.
Owner:CHINA ELECTRIC POWER RES INST +2

Intelligent electric meter

The invention discloses an intelligent electric meter (100), and the electric meter (100) comprises a central processor (101); a metering module (102) which is connected with the central processor (101) and is used for the bidirectional metering of the electric quantity; a blockchain module (103) which carries out the data interaction with the central processor (101), and is used for achieving thepoint-to-point power transaction between nodes in a blockchain network in a region and the storage of he distributed electric quantity metering and transaction data. The electric meter provided by the invention achieves the power transaction and recording through the blockchain module (103), and enables the final electric quantity information and point-to-point power transaction information to bestored in the blockchain network in a distributed and non-tampered manner. The electric meter achieves the distributed power generation and storage and the bidirectional metering of the power generation quantity and power utilization quantity of a power user, and achieves the metering, transaction and recording of the electric quantity of a distributed intelligent microgrid. A distributed power generation side and power utilization side serve as the basis of the transaction and charging through the intelligent electric meter, thereby enabling the microgrid to be more economically feasible.
Owner:HEPU TECH DEV BEIJING CO LTD

Prediction method for q-precentile life of intelligent meter

The invention discloses a prediction method for the q-precentile life of an intelligent meter and relates to the technical field of reliability estimation of accelerated degradation data. The method comprises the following steps: performing degradation path modeling according to test data, and obtaining the pseudo life estimation of the intelligent meter under all stress levels according to the failure threshold value of given parameters; building a Weibull distribution-based accelerated degradation model of three parameters, such as temperature, humidity and electrical stress according to the pseudo life estimation results of the intelligent meter under all stress levels of an accelerated degradation test, so as to obtain the point estimation and covariance estimation of the acceleration model; and obtaining the lower estimation of parameter service life of the intelligent meter under a given reliability degree and a given confidence degree in normal use conditions according to the point and covariance matrix of the parameters of the accelerated degradation model. Due to the adoption of the method, the test time is effectively shortened, the test expense is reduced, and the quick and accurate estimation of a stable period of an accelerometer is realized.
Owner:JIBEI ELECTRIC POWER COMPANY LIMITED CENT OF METROLOGY +1

PLC-based intelligent household gateway apparatus

Disclosed in the invention is a PLC-based intelligent household gateway apparatus. The apparatus comprises: a master control unit, which is used for central controlling; an interaction unit, which is used for carrying out information interaction with a user; a metering unit, which is used for electric quantity metering; a wireless route communication unit, which is used for broadband access, indoor wireless network signal coverage, and communication with other communication terminals; a PLC communication unit, which is used for indoor power line carrier communication and is respectively connected with the master control unit, and a 220-V power line; a power supply limiting unit, which is used for controlling a household electricity load and is respectively connected with the master control unit and a household circuit input circuit; and a power supply unit, which is used for providing power for all the units. And the interaction unit, the metering unit and the wireless route communication unit are respectively connected with the master control unit. According to the invention, the intelligent household gateway apparatus that has high integration is integrated with the function as a household intelligent ammeter and the functions of intelligent power management, intelligent household, and home network access and the like, thereby building comfortable, intelligent, high-efficiency, and green household living environment.
Owner:南京博立康电力设备有限公司

Privacy protection type real-time electric charge collecting method for intelligent power grid

The invention discloses a privacy protection type real-time electric charge collecting method of an intelligent power grid. The method comprises the following steps: 1, initializing a system; 2, registering through a user before logging in the network; 3, releasing network access permit for an intelligent ammeter through a local aggregator; 4, obtaining a safety parameter through the intelligent ammeter; 5, transferring the network access permit through building gateway; 6, blinding the user electricity consumption data through the intelligent ammeter; 7, signing the blinded massage through the building gateway, and sending the signature result to the local aggregator; 8, removing blinding of the signed message through the local aggregator, recovering the user electricity consumption data, signature value of the user electricity consumption data, and the signature parameter, and verifying the validity of the signature value of the user electricity consumption data. With the adoption of the method, the user privacy is protected when collecting the real-time electricity consumption data; meanwhile, the source of vicious electricity consumption data can be found out; therefore, the stability of a power grid system can be improved well.
Owner:DELIXI GROUP INSTRUMENT CO LTD

Method and system for managing microgrid energy

The invention belongs to the field of scheduling and management of power distribution networks and provides a method and a system for managing microgrid energy. An intelligent electric meter acquires electric quantity information of each load of a microgrid system; an intelligent terminal receives data of the electric quantity information acquired by the intelligent electric meter and outputs the acquired data through an Ethernet in real time; a microgrid system controller receives the information data output by the intelligent terminal, arranges the information data output by the intelligent terminal, performs logic judgment according to a preset microgrid control strategy, acquires a microgrid control criterion execution instruction and transmits the control instruction to the intelligent terminal, so that distributed power supply optimized control, energy economic scheduling, regenerative energy output forecast, reactive power optimization and voltage control, demand side response, plug-and-play, grid connection, island conversion and other application functions are realized; therefore, the characteristics of toughness, reliability, high attack resistance and high economy of an intelligent power grid are embodied; and the method and the system have a great significance for popularization and demonstration.
Owner:STATE GRID TIANJIN ELECTRIC POWER +3

Intelligent electric meter main control chip and security encryption method

The invention provides an intelligent electric meter main control chip. The intelligent electric meter main control chip comprises an internal bus, a main processor module, a data storage module and at least one application module, wherein the main processor module, the data storage module and the application module are connected to the internal bus, and the application module comprises a metering module. A security control module is further integrated inside the chip, is connected to the internal bus and has a security encryption function. The chip further comprises a storage protecting module, wherein the storage protecting module is connected between the main processor module and the internal bus and is configured for shielding illegal memory access instructions. Due to the fact that the security control module is arranged inside the main control chip and connected with a center processing module through the internal bus, security holes of a security control chip of an application software bypass of an intelligent electric meter terminal can be effectively avoided, and meanwhile production and testing cost is reduced. The invention further provides a security encryption method based on the intelligent electric meter main control chip and a certificate authorization center, and security of an electric system is guaranteed further.
Owner:SHANGHAI BEILING
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