79results about How to "High quality operation" patented technology

The invention discloses a wireless sensor network system for monitoring real-time data of a power grid, which comprises a wireless sensor node, a gateway node, an Internet network and a monitoring center data platform, wherein the wireless sensor node is used for collecting real-time running state parameters of power grid equipment and transferring the collected parameters to the monitoring center data platform through the gateway node and the Internet network; the monitoring center data platform is used for monitoring the received real-time data of power grid equipment; and the wireless sensor node and the gateway node are connected to a power supply module. The timely induction for internal risks of the power grid equipment and the judgment on the equipment running state of a circuit are realized, by utilizing the wireless sensor network system provided by the invention in the manner of data monitoring. The gateway node of the wireless sensor network system has high transmission speed and strong anti-jamming capability; the wireless sensor node and the gateway node can be used for efficiently acquiring and storing energy; and the long service lives of the wireless sensor node and the gateway node are realized.

The invention discloses a gas-liquid two-phase fluid distributor, wherein a main pipe is designed as an annular channel; a cross tee is arranged on the pipe for gas-liquid separation; a sieve tube is arranged inside the pipe; a corresponding annular liquid channel is arranged on the lower part of the pipe and is connected with manifold branches of a gas path through a communicating pipe; a plurality of liquid-phase branches are led out of the liquid channel and are mixed with the gas path; and flowmeters and adjusting valves are arranged on the liquid-phase branches and used for measuring and adjusting the liquid-phase flow rate. Gas-liquid two-phase fluid flowing into the pipe is separated into single-phase gas and single-phase liquid first, and then the single-phase gas and the single-phase liquid are separated into a plurality of branches for flowing respectively, and are remixed to ensure the dryness of mixture of the gas-liquid two-phase fluid obtained by each branch is consistent with that of an inlet of the main pipe, thereby realizing high-efficiency equal dryness distribution of the gas-liquid two-phase fluid and obviously increasing the flow rate of the inlet and the adaptation range of the dryness.

The invention relates to a method for evaluating the reliability of the performance state of a reciprocating compressor. The method comprises the following steps of: determining a factor set U, wherein the factor set is a set formed by taking various factors influencing an evaluated object as elements, and the comprehensiveness, sensitivity, chanciness and stability of indexes are required to be taken into consideration when the indexes are selected; establishing a weight set A, and giving a corresponding weight to each factor, wherein the weight set is required to meet conditions of normalization and non-negativity; determining a remark set V, wherein the remark set is a classic set consisting of possible evaluation results of the evaluated object, the number m of remark grades is more than 3, but less than or equal to 9 and is an odd number; evaluating a single factor, and establishing a fuzzy relation matrix R; after the factor weight set A and the evaluation matrix R are determined, obtaining a fuzzy comprehensive evaluation set B according to the multiplying operation of the fuzzy matrix; and processing the evaluation indexes by a maximum membership grade method or a weighted averaging method. The method is simple and practical and is easy to popularize and apply.

The invention relates to an alternating-current controllable paralleling reactor comprising a transformer type main reactor and a step reactor. Wherein, the first coil is the main coil which connects the network directly; the second coil is the control coil outside which a break and a thyristor controller are mounted; the third coil is the compensating coil outside which a filtering compensating unit is mounted; and the transformer type main reactor and the second side-connect step reactor are both mounted in a fuel tank to form the body of controllable reactor. The alternating step controllable single-phase paralleling reactor comprises the body with high resistance, the breaker, the thyristor controller and the central controller, and it has the functions and characters which common reactors do not have, including: simply adjusting, rapid response time, non-harmonic-wave, lower noise, lower vibration, high reliability, lower consumption, and it can separate the harmonic wave to reduce the effect to electrified wire netting. The invention can be used in the electrified wire netting of extra-high voltage and long-distance power transmission.

The invention relates to a double-feed wind power generating system with energy storage function, comprising a double-feed type wind power generator, an alternating-current excitation power supply, a monitoring device, a grid-connection contactor and an energy storing device, wherein one end of the grid-connection contactor, a stator winding of the double-feed type wind power generator, and the alternating-current end of a stator side converter are together connected with a load, and the other end of the grid-connection contactor is connected with a power grid; the alternating-current end of the alternating-current excitation power supply is connected with the energy storing device; and the monitoring device controls the communication state of the grid-connection contactor to realize the conversion of an independent running mode or a grid-connection running mode of the system and controls the working states of a rotor side converter and the stator side converter according to the current running mode. When carrying out grid-connection running, the double-feed wind power generating system can actively participate in the running and the control of an electric system to provide active power and reactive power compensation and improve the quality of electric energy; when carrying out independent loaded running, the double-feed wind power generating system can achieve the dynamic balance of the active power and the reactive power at a generation side and an electric load side to ensure the safe, economic, efficient and high-quality running of wind power equipment and the load.

The present invention provides a passenger vehicles based on sensor net technology, which includes: a passenger vehicle sensor net, a passenger vehicle sensor net node, a passenger vehicle check-station sensor net node and a mobile check-vehicle sensor net node. The passenger vehicle sensor net can monitor real-time the operation state information of the passenger vehicle such as operation time, operation routes, stop station, passenger carrying capacity, vehicle safety state, vehicle health state etc, and sends the information in-time to the passenger vehicle check-station sensor net node, passenger station sensor net node or mobile check-vehicle sensor net node, and can ensure in-time, dynamic monitor for passenger vehicle. The system can ensure safe, steady and high-quality management of the passenger transport market, and increase the passenger transport service quality.

A composite high frequency component, comprising: a first high frequency switch having a first common port and firsts second, and third communication ports, wherein: the first communication port is operable to connect to respective transmitting sections of first and second communication systems which operate in substantially the same frequency band, the second communication port is operable to connect to a receiving section of the first communication system, the third communication port is operable to connect to a receiving section of the second communication system, and the first high frequency switch has a transfer characteristic for passing signals between the first common port and the first, second and third communication ports which are in the frequency band of the first and second communication systems as a function of at least one first control signal; a second high frequency switch having a second common port and fourth and fifth communication ports, wherein: the fourth communication port is operable to connect to a transmitting section of a third communication system which operates in a different frequency band than the first and second communication systems, the fifth communication port is operable to connect to a receiving section of the third communication system, and the second high frequency switch has a transfer characteristic for passing signals between the second common port and the fourth and fifth communication ports which are in the frequency band of the third communication system as a function of at least one second control signal; a first filter having a transfer characteristic for passing signals in the frequency band of the first and second communication systems, one end of the first filter being coupled to the first common port of the first high frequency switch; a second filter having a transfer characteristic for passing signals in the frequency band of the third communication system, one end of the second filter being coupled to the second common port of the second high frequency switch; and a diplexer having a third common port and first and second input / output ports, wherein: the third common port is operable to at least one of receive and transmit signals from an antenna, the first input / output port is coupled to an opposite end of the first filter, the second input / output port is coupled to an opposite end of the second filter, and the diplexer has a transfer characteristic for passing signals: (i) between the third common port and the first input / output port which are in the frequency band of the first and second communication systems, and (ii) between the third common port and the second input / output port which are in the frequency band of the third communication system.

The invention provides control method and system of the dynamic feedback of the service quality of an end-to-end service. The control system comprises the following modules: a data acquisition module, a service quality analysis module, a service parameter programming module, a service parameter regulating module and a knowledge base module, wherein the data acquisition module is used for acquiring and detecting the network performance parameters of the end-to-end service and the the end-to-end service evaluating information of a user; the service quality analysis module is used for analyzing the network performance parameters and the end-to-end service evaluating information of the user to determine service parameters which need to be regulated; the service parameter programming module isused for programming the service parameters which need to be regulated to form optimized service parameters; the service parameter regulating module is used for setting the optimized service parameters into service implementation equipment; and the knowledge base module is used for providing information support for the data acquisition module, the service quality analysis module, the service parameter programming module and the service parameter regulating module. The control method monitors an end-to-end network service system by utilizing the control system and programs and regulates the optimized service parameters of the service implementation equipment, thereby dynamically enhancing the service quality of the end-to-end service in real time.

The invention provides an intelligent rainwater car washing system which is characterized by comprising a rainwater collection unit (1), a rainwater purification unit (2), a clean water pond unit (3), a car washing room unit (4), a waste water reusing processing unit (5) and an intelligent control unit (6), wherein a water outlet pipe (1-3) of the rainwater collection unit (1) is connected with a water inlet pipe (2-1) of the rainwater purification unit (2), a water inlet pipe (2-5) of the rainwater purification unit (2) is connected with a water inlet pipe (3-1) of the clean water pond unit (3), a water supplying pipe (3-3) of the clean water pond unit (3) is connected with a water inlet pipe (4-4) of the car washing room unit (4), and car-washing waste water of the car washing room unit (4) flows into a waste water collection pipe (5-1) of the waste water reusing processing unit (5). On-line motoring data and sending instructions of other units are collected by the intelligent control unit (6) to control operation of all unit equipment. The intelligent rainwater car washing system has the advantages of opening up new water resources, saving fresh water resources, and being environment-friendly, and has good society benefits and environment benefits.

The invention provides a distributed thermal pipeline leakage monitoring system. The system comprises an optical fiber temperature measuring host, an industrial personal computer and optical temperature measuring cables; the optical fiber temperature measuring host comprises N temperature measuring channels; each temperature measuring channel is correspondingly connected with one optical temperature measuring cable; the optical temperature measuring cables are laid along the pipeline in the whole journey by using a thermal pipeline as a carrier; and the temperature measuring channels send pulsed optical signals to the optical temperature measuring cables, scattered light sent back from the insides of the optical temperature measuring cables is acquired in real time, according to the refraction index of the optical temperature measuring cables and the light intensity of the scattered light, the whole-line temperature and temperature change rate value curve of the thermal pipeline is obtained, the average temperatures and the maximum temperature change rates of to-be-monitored parts are determined according to the lengths, away from the optical fiber temperature measuring host, of the optical cables laid at the different to-be-monitored parts, and whether the thermal pipeline is in the leakage state is judged according to the set temperature change rate threshold value.

The invention discloses a plaster cutting packaging method and device. The method comprises the steps that a packaging film is cut to form an upper packaging film and a lower packaging film; plaster materials are cut into plastic sheets; front and reverse face overturning is performed on the lower packaging film, the upper packaging film, the plastic sheets and the lower packaging film which are sequentially arranged from top to bottom are fed into a mold sealing and pressing device at the same time for sealing and pressing packaging to form continuous plaster bags; and edge cutting and slitting processing are performed. The device comprises a packaging film unwinding and slitting device, a plaster material unwinding and slitting device, the mold sealing and pressing device, an offcut slitting device and a small bag cut-off and output device which are arranged on the machine frame. The outlet end of the packaging film unwinding and slitting device and the outlet end of the plaster material unwinding and slitting device are connected with the inlet end of the mold sealing and pressing device. The mold sealing and pressing device, the offcut slitting device and the small bag cut-off and output device are sequentially arranged in the plaster bag conveying direction. The packaging technology with the high automation degree can be achieved, production is stable, and the production efficiency is high.

The invention discloses a refining chemical component tracking method. In a component tracking system composed of a measuring system, an LIMS laboratory management system, an MED system and a component tracking computer, the MES determines data of component flow start-stop sources, start-stop time and quality value, the measuring system collects data of side flow rate and oil tank reserves, the LIMS obtains component quality data, the component tracking computer establishes a component tracking model to implement component tracking and transmits tracking results to each system to monitor real-time status of oil component. The refining chemical component tracking method has the advantages that through component tracking, logistic status is learnt accurately, actual data is provided to support material balance, various producing resources are reasonably allocated and utilized, production schemes or process parameters can be adjusted rapidly on encountering problems, thereby realizing precision management of production, guaranteeing safe, stable, high-quality and long-term operation of the producing devices, and further bringing more economic benefits to enterprises.

The invention discloses a 3D substation panoramic real-time control system based on a virtual simulation technology. A plurality of field data acquisition devices are respectively mounted on a plurality of actual substations. The output ends of the field data acquisition devices are connected with the input end of a control system. The output end of the control system is connected with the input end of a computer 3D modeling system. The output end of the computer 3D modeling system is connected with a 3D panoramic display in a dispatching hall. The field data acquisition devices are used for surveying and mapping the substation sites and collecting the relative positions, deviation angles and actual sizes of all equipment in the substations. The control system is used for adjusting the parameters of the relative positions, deviation angles and actual sizes and transmitting the adjusted real-time data to the computer 3D modeling system. The computer 3D modeling system carries out 3D modeling of the original equipment according to the collected and processed data and carrying out 360-degree panoramic display of the modeled equipment models.

The invention relates to a multi-dimensional power flow evaluation index method based on the statistic analysis of the historical information of a power grid. The method comprises the following steps of: preprocessing power flow information: acquiring the power flow information in a selected time interval from a database, calculating a power flow overload coefficient alpha representing the power flow overload degree of single equipment or a power transmission cross section, and comparing the acquired historical power flow data with the limit value of the equipment or the cross section; carrying out statistic calculation on power flow time features: counting time corresponding to different power flow overload degrees through the utilization of the power flow overload coefficients and the corresponding time periods, and summing the time periods to obtain the relationship between the power flow overload degrees and the running time; and carrying out statistic calculation on the multi-dimensional power flow evaluation indexes (PFI). According to the multi-dimensional power flow evaluation index method, a power flow distribution curve is drawn on the basis of the historical data of the power grid according to the power flow evaluation indexes (PFI), an auxiliary means is provided for the power flow analysis and the power flow prediction of the power transmission cross section of the power grid and the medium and long term statistic analysis of the power grid, and the key power flow control indexes of the power grid are converted to the multi-dimensional statistic indexes.

The invention discloses a switch cabinet intelligent control device, which comprises a main control module STC89C52, a one-time dynamic simulation wiring module, a high-voltage electrification and lockout module, a temperature and humidity control module, a voice incorrect-prompt prevention module, a liquid crystal display module, a remote / in-situ conversion switch, an upper computer remote monitoring host and a fault diagnosis expert system module. The device is capable of explicitly showing the actual working state of each component in a switch cabinet and is high in safety performance. Based on the above remote monitoring technology, the working efficiency is greatly improved and the failure rate of the device is reduced. The maintenance period of the device is shortened and the application efficiency of the device is improved. The fault diagnosis expert system module can actively conduct the maintenance when the performance of the switch cabinet is reduced to a certain degree or before the occurrence of a fault. Therefore, a reliable technology guarantee is provided for the safe, stable and high-quality operation of the device. The service life of the device is greatly prolonged.

The invention discloses a distributed power supply optimal connection position and capacity planning method taking multiple subjects into consideration. The method includes the steps: building a distributed power supply model, namely, a prediction model of photovoltaic power generation system output; building an outer layer optimization model taking a power distribution network as a subject; building an inner layer optimization model taking a user as a subject; building a distributed power supply optimal access location and capacity solution algorithm based on a genetic algorithm. According tothe method, a distributed power supply model can be accurately built, many-sided benefits are comprehensively considered, and distributed power supply optimal access capacity and location is determined by two-layer optimization and multi-subject game. An important basis can be provided for optimal access of a distributed power supply in a power distribution network, an important foundation servesas optimal planning of an active distribution network, the power distribution network is planned based on the important foundation, adverse effect of a distributed power supply on the power distribution network can be decreased, efficient, economical and excellent running of the power distribution network is facilitated, the planning level of an urban distribution network can be improved, and reasonable development of an urban active distribution network is facilitated.

The invention provides a thermal pipeline with an optical cable. By laying the optical cable in an external structure layer of the thermal pipeline in the whole process, external signal change, such as abnormal temperature or structure disturbance, can be sensed by virtue of optical fibers in the optical cable, and sensors are continuously distributed on the thermal pipeline in the whole process,thereby facilitating monitoring of the thermal pipeline with no blind zone in the whole process in use; the safe and high-quality operation of a heat pipeline network is improved. The thermal pipelineis characterized by comprising a main body of the thermal pipeline, and the external structure layer wrapping the peripheral surface of the main body of the thermal pipeline; and the external structure layer is internally provided with the optical cable.

The invention relates to a multi-dimensional voltage deviation index method based on the statistic analysis of the historical information of a power grid. The method comprises the following steps of: preprocessing voltage information: acquiring the station voltage information including time attributes, space attributes and equipment set attributes in an undetermined time interval from a database; calculating an early warning median value: reading the upper limit and the lower limit of a voltage early warning value, and calculating a median of the voltage early warning value so as to enable voltage deviation indexes (VDI) to have the capability of out-of-limit early warning; and carrying out sorting calculation on multi-dimensional voltage deviation indexes: carrying out statistic analysis and calculation on voltage data within a period of time T to obtain important voltage indexes VDI of a single station and the power grid. According to the invention, a VDI curve is drawn according to statistic calculation results, a reference basis is provided for the regulation of the voltage, the regulation of a reactive power control strategy and the basis planning, configuration and switching of reactive-load compensation equipment so as to assist a dispatcher in learning the current running health degree and the variation trend of the power grid, and a reliable auxiliary strategy can be provided for the running mode adjustment and the risk preventive control of the power grid .

The invention relates to a digital ink-jet non-woven base paper, which is composed of the following formula components by weight percentage: 66-74% of bleached chemical pulp, 8-15% of chemical fiber, 10-15% of filler, 6-12% of an adhesive, and 0.5%-1.5% of a chemical additive. The digital ink-jet non-woven base paper provided by the invention has the advantages of environmental protection, soft hand feel, high grade, durability and easy construction, good printing effect, bright color and good layering, increases the smoothness of finished paper, achieves better printing effect and stronger stereoscopic sense, satisfies the requirements of people for environmental protection and health, and also achieves the aesthetic requirement.

The invention discloses a plastic film blanking device. The plastic film blanking device comprises a centralized electric control box, a blanking cutter frame block, an air-liquid pressure cylinder, asupport column pipe, a film machining table, a slide rail transmission groove, a sudden stop button base, an anti-collision shell cover, a trapezoidal blade and a motor box base; the air-liquid pressure cylinder and a guide pipe of the slide rail transmission groove are engaged as a whole; the air-liquid pressure cylinder is provided with a gear transmission mechanism, a gas transmission device,a tooth block switching device, a ratchet rotating mechanism, a shaft rod ejecting device, a hydraulic cylinder compression mechanism, a pneumatic cylinder pushing mechanism and a double-outlet-rod pressure device; the hydraulic and pneumatic cooperation effect of the plastic film blanking device is high; hydraulic outlet water scours and blanks residues, so that the next material blanking qualityis not influenced; and burrs are flatly blown by applying the air pressure to finish the flatness of film surfaces beforehand, so that the quick implementation of later production line is accelerated, the overall working efficiency is improved, and the short-time high-quality operation is achieved.

The invention provides a temperature and leakage monitoring optical cable network based on a heat distribution pipeline. On the basis of a heat distribution pipeline network, optical cables are pavedall along the heat distribution pipelines; by utilizing a monitoring mode switching device, not only amplitude variation and position information can be obtained through correspondence relation between amplitude variation of a Rayleigh scattering light interference phase signal and temperature variation and / or noise disturbance signals caused by leakage to determine pipeline leak points, but alsotemperature information of each point along a fiber can be obtained through correspondence relation between temperature and frequency shift of a Brillouin light scattering signal and by combining positioning information of Fresnel light reflection information, thereby helping to realize whole-course no-blind-area leakage monitoring and temperature abnormity monitoring of each heat distribution pipeline of the heat distribution pipeline network, enabling the pipeline leakage points or temperature abnormity hidden troubles to be found in time and promoting safe and high-quality operation of theheat distribution pipelines.

The invention relates to a digital vortex thermo-motive generation device, in particular to the digital vortex thermo-motive generation device which utilizes heat of air heat sources or other low-temperature heat sources and uses working medium with low boiling point to apply work and automatically circulate. The invention designs a digital vortex thermo-motive generation device and a working method thereof, aiming at the problems that inadaptability to climatic changes, low energy efficiency ratio COP of the conventional heat pump generation device and the low-temperature thermo-motive device, motive seal medium leakage of a turbomachine output shaft, and low loading rate of discontinuous operation of the turbomachine. The device comprises a single and dual cycle digital vortex thermo-motive generation device integrated by a digital vortex heat-pump system, a working medium zero-leakage low-temperature turbomachine and a dead-steam extraction cycle system thereof, and a heat pipe device, a multi-split online, heat pump combined supply one-online and heat pump combined supply multiple-online generation systems. The device can adapt to climatic changes, has the energy efficiency ratio COP of between 3.4 and 5.6w / w, and can realize clean environment with working medium zero-leakage zero-pollution and no heat drainage pollution.

The invention discloses a quick painting and calligraphy mounting method, including the following steps: leveling and support-mounting painting center, making rectangle, cutting rectangle, squarely cutting painting center, inserting rectangle, feeding, inserting damask silk, covering back, gluing paper cluster, mounting sky and earth poles, nailing slope on the sky pole, etc. It completes two working procedures of leveling and support-mounting painting center within only one minute; the output per person can reach 13-15 pieces; the mounting effect is smooth, glabrous, soft and ametabolic and it is not influenced by the season and the weather. It is applied to mount painting and calligraphy.

The invention discloses a failure recovery method. When an internet-of-things platform is unable to communicate an internet-of-things terminal having a communication failure, the internet-of-things terminal having the communication failure can be informed of re-starting a communication connection with the internet-of-things platform, through an internet-of-things platform which is normal. Therefore, normal communication between the internet-of-things terminals and the internet-of-things platform is guaranteed, and high-quality running of internet-of-things services is ensured.

A direct drive wind-driven power generation system control method comprises four parts: a permanent-magnet direct drive wind-driven power generation system, motor-side converter control, grid-side converter control and energy storage system control. The invention provides a safe, stable and high-quality-operating direct drive wind-driven power generation system control strategy. The control strategy has a power stabilization effect when the grid is running normally. When a power grid fails, the method has good low-voltage crossing ability so that the normal operation of the system is not affected by power grid failure.

The invention provides a power grid weak link analysis method of based on statistic power flow. The method includes setting a time scale; extracting the running historical data of each main transformer and setting power flow heavy load coefficients and a power transmission section stable limit; setting iteration frequencies and iteration maximum frequency; calculating the power transmission section power flow mean value; calculating sign functions; calculating the power flow evaluation indexes; calculating the power flow heavy load degree of each main transformer; or sequencing the main transformers based on importance and other steps. According to the invention, the time dimension on the power flow data can be increased and the month or year is selected as the time scale to identify the heavy load degree of the main transformers in a certain period of time, the early peak hours can be used as the time scale to analyze the effect of the early peak on the main transformer load factors, and the time proportions of the power flow heavy load coefficients greater than 60% are sequenced to analyze the importance degree of the main transformers of the equipment, so that the weak link of the power grid can be timely discovered, and the instructions for reasonably arranging the operation ways, maintenance schedules, and power grid planning can be provided.

The invention provides a health evaluation and diagnosis method and system for a production line, and the method comprises the steps: setting an evaluation dimension of the health state of the production line; setting an alarm parameter according to the evaluation dimension, setting a signal acquisition parameter according to the alarm parameter, and setting a scoring parameter according to the alarm parameter, the signal acquisition parameter and a production process of a production line; acquiring signal data of a production line according to the signal acquisition parameters; performing alarm calculation on the signal data according to the alarm parameters to generate an alarm result; scoring the health state of the product production process according to the scoring parameters to obtain a health score; and according to the health score and the alarm result, carrying out health state diagnosis on the production line to obtain a diagnosis result, thereby realizing real-time monitoring and evaluation of the health state of the production line, carrying out timely early warning and alarm on various abnormalities and faults of the production line, and giving an effective response mode so as to ensure that the production line can operate stably with high quality and high efficiency.

The invention provides a multilevel dynamic home network service quality assurance method. The method is based on a 'three horizontal six longitudinal' service quality assurance architecture, 'three horizontal' comprises a data plane, a control plane and a management plane respectively, and 'six longitudinal' comprises six steps, namely service discovery, service subdivision, safety control, resource consultation, resource mapping and service execution, wherein the management plane also comprises a service oriented QoS feedback control mechanism module which is used for realizing end-to-end service quality dynamic feedback on single service flow as well as a policy which is generated by a global QoS policy dynamic generation technical module and is used for supporting a service discovery module, a demand analysis module, a security detection module, a service registration module and a service recording module of the management plane; and the service oriented QoS feedback control mechanism module is dependent on information provided by the service discovery module, the demand analysis module, the security detection module, the service registration module and the service recording module of the management plane.

The invention relates to the technical field of intelligent electric meter fault prediction, and provides an intelligent electric meter fault prediction method and system based on a BiLSTM-CNN model, and the method comprises the steps: obtaining historical fault data of an intelligent electric meter as feature data, including equipment data, operation data, a fault type, fault time, temperature and humidity; the feature data is subjected to data cleaning, the data cleaning comprises cleaning of duplicate values, missing values and abnormal values contained in historical fault data features, and then a BiLSTM-CNN model is constructed; according to the technical scheme, the feature set influencing the fault of the intelligent electric meter is encoded by using the advantage of extracting sequence time sequence information by the bidirectional long and short time memory network and the advantage of extracting local feature information by the convolutional neural network, and finally, the encoded vector is used for classifying and predicting the fault of the intelligent electric meter. The problem that effective information in the fault data of the intelligent electric meter cannot be well extracted by a single neural network model in the prior art is solved.