31results about How to "Avoid imbalance" patented technology

This utility model discloses an impeller device for a fan, relating to the field of FRP (fiberglass reinforced plastic) fan technology. The impeller device includes a rear chassis, multiple blades, and a front chassis. The blades are fixed to the rear chassis with bolts. The upper surface of the rear chassis has several bolt holes. The front chassis is connected to the rear chassis via connecting columns. The front chassis is located above the blades and provides additional fixation for them. This utility model uses bolts to fix the blades to the rear chassis, forming a modular design that facilitates subsequent replacement and maintenance. Simultaneously, the front and rear chassis are fixedly connected by connecting columns, and a groove is provided on the lower surface of the front chassis to securely embed the upper end of the blades, forming a double-fixation structure for the blades, effectively improving the stability of the blades under high-speed rotation.

The application relates to a microbial fermentation device for beef jerky processing and relates to the technical field of food fermentation equipment, and comprises a material conveying pipe. The application can accurately control the temperatures of the front section, the middle section and the rear section of the material conveying pipe by arranging three groups of heating components and uniformly distributed temperature sensors, can match the growth activity peak value of probiotics, can improve the proliferation efficiency of a bacterial population and the activity of probiotics, can avoid flavor substance imbalance, and can improve the heating efficiency and uniformity by adopting an opening design of a heat preservation shell and a spiral-wound heating pipe. Meanwhile, the heat loss is reduced by a protective shell and a thermal insulation aerogel, the internal components are protected, the perforation of spiral conveying blades is matched with a turnover plate, the beef jerky material mixing is promoted, the temperature accurate control in the beef jerky fermentation process, the uniform mixing of beef jerky material and the uniform distribution of bacterial liquid are realized, the fermentation efficiency and product flavor coordination are effectively improved, the fermentation period is shortened, and the product quality is improved.

The invention relates to the technical field of environmental parameter control, in particular to an automatic control method and system for a goat breeding environment, and the method comprises the steps: collecting and preprocessing a multi-source data sequence in the goat breeding environment; constructing a high-temperature flying dust interference condition and a chemical gas interference condition of any goat breeding house in each control interval; and generating a proportional term regulation factor according to the high-temperature flying dust interference condition and the chemical gas interference condition, and dynamically regulating the proportional term of the ventilation motor power of any goat breeding house in each control interval through the proportional term regulation factor. According to the method, the stability of automatic control of the goat breeding environment is improved by adjusting the PID control proportional item of the ventilation motor of the goat breeding house.

The application relates to the dispensing technical field, in particular to a barrier-avoiding dispensing method based on machine vision, which comprises the following steps: step 1, visual identification generates a dispensing model, an analysis unit determines the angle of a workpiece, and the dispensing model is corrected; step 2, dispensing parameters are determined according to the measured value of a balancing machine; step 3, single-process conditions of a dispensing mechanism are determined, a new dispensing process is generated, and dispensing is carried out; step 4, the dispensing mechanism is adjusted to enter the next dispensing process; step 5, the dispensing mechanism is controlled to carry out dispensing of the quality-minimal dispersion correction point, and the dispensing process of the dispensing mechanism is determined again; step 6, the dispensing mechanism is corrected according to the deviation quality condition of any dispensing process; and step 7, all dispensing processes are completed, the dispensing cylinder is reset, and the workpiece generates a dispensing finished product after a certain curing time. The application improves the qualified rate of dispensing finished products by carrying out barrier-avoiding algorithm processing on the dispensing process.

A method for in-situ generation of FeOx / MnOx from groundwater based on PRB for the degradation of organohalogenated pollutants, relating to the fields of groundwater remediation and advanced oxidation technologies. The purpose of this invention is to address the problems of high energy consumption, low efficiency, and cumbersome processes in existing short-chain chlorinated paraffin groundwater remediation technologies. Method: A mixture of prepared simulated groundwater and an oxidant is pumped into a PRB simulation column to degrade short-chain chlorinated paraffins; the concentration of short-chain chlorinated paraffins in the PRB simulation column is monitored, and the degradation efficiency is maintained at 90-100%. This invention provides a method for in-situ generation of FeOx / MnOx from groundwater based on PRB for the degradation of organohalogenated pollutants.

The utility model discloses a kind of blade transport support with early warning function, it is related to wind power blade transport tool technical field, and transport support includes base, support mechanism, fixed mechanism and early warning module;Support mechanism includes two bracket, which are spaced apart in the top of base along transverse direction, the top of two bracket is used to support the blade root;Fixed mechanism includes two fixed plate, two fixed plate are set in the top of base, through hole is set on each fixed plate, the end surface of blade root supported on the top surface of multiple bracket is fastened in through hole by fastening bolt;Early warning module includes prompter, processor and two pressure sensors, prompter is set on base, one pressure sensor is set between each bracket and base, and the prompter and two pressure sensors are electrically connected with the processor.The transport support of the utility model can prompt in time if blade is inclined during transportation process, and the safety of transportation process is improved.

The invention relates to the technical field of manufacturing of organic fertilizers and microbial fertilizers, in particular to a high-tower pelletizer for preparing small-particle compound fertilizers for greening, which comprises a tower body and a spraying structure arranged at the top end of the tower body, and the spraying structure comprises a mounting frame arranged at the top end of the tower body, the mounting frame comprises a first disc body fixed at the top end of the tower body and a second disc body fixed below the first disc body through a plurality of connecting arms; the cylinder is rotationally installed on the second disc body, the conical barrel is fixed to the cylinder, a plurality of spray holes are formed in the conical barrel, and a filter disc used for filtering agglomerated raw materials is further fixedly arranged in the cylinder; in the working process, agglomerated raw materials are driven through rotation of the multiple scrapers, so that the agglomerated raw materials enter the material pressing mechanism to be subjected to cluster breaking treatment, the situation that as the working time is prolonged, too many agglomerated raw materials are accumulated on the filter disc, the flux of the filter disc is reduced, and then raw materials in the conical barrel are unbalanced is prevented, and the production quality is effectively guaranteed.

This invention discloses a 3D target detection method based on sparse dynamic attention and star-shaped interaction. The method obtains basic voxel features from the original LiDAR point cloud through voxelization and sparse convolution, then introduces a sparse dynamic parallel attention module. This module achieves efficient enhancement of global context and channel dimensions through dynamic attention branches and parallel channel interaction branches. A sparse star-shaped interaction module is then used to construct a star-shaped neighborhood interaction structure with a central voxel, completing local geometric modeling and nonlinear feature interaction only on non-empty voxels. Finally, keypoint sampling, RoI pooling, and a detection head output the 3D detection box, category, and confidence score. This invention, through the synergistic complementarity of SDPA and SSB, significantly improves the detection accuracy of long-distance, small-scale, and occluded targets while maintaining linear growth in computational complexity and meeting real-time requirements. It achieves balanced performance optimization across multiple categories, including vehicles, pedestrians, and cyclists, and is suitable for 3D perception scenarios with high precision and real-time requirements, such as autonomous driving.

The water fire processing method for preventing the inner bottom from being concave in the processing of the K-shaped plate for ships comprises the following steps: preparing the matched tools for water fire bending; selecting the K-shaped plate to be processed, making the water fire processing scheme and marking the heating line; continuously heating and water tracking cooling; continuously strip heating at the marked line; strip heating on the K-shaped plate through independent lines, controlling the heating width, heating temperature, heating speed and water fire distance; turning over the K-shaped plate, heating from the two side wings to the middle of the bottom plate at the strip heating mark of the inner bottom plate and water tracking cooling; checking the longitudinal curvature forming condition, the bottom plate transverse flatness and the surface smoothness. The water fire processing method for preventing the inner bottom from being concave in the processing of the K-shaped plate for ships can effectively avoid the inner bottom concave and the muscle-like defects in the processing of the K-shaped plate for ships, can ensure the smoothness of the plate surface line, can quickly process and form, and can reduce the repeated correction time.

A device for replacing a ring cooling machine trolley body is located between the trolley body and the trolley track, the device comprises a transverse moving mechanism and a jacking mechanism, the transverse moving mechanism comprises a guide rail and a moving part, the guide rail is erected on the trolley track, and the moving part is arranged on the guide rail and can move along the guide rail; the jacking mechanism is arranged on the moving part and located between the moving part and the trolley body. The device can work in a narrow space, and through the action of the transverse moving mechanism and the jacking mechanism, the trolley to be replaced can stably drive off or drive into the ring cooling machine along the guide rail, and then the trolley to be replaced can be replaced. At the same time, the upper cover and the lower slide plate of the ring cooling machine are avoided from being disassembled, the ring cooling machine trolley body can be quickly replaced, and then the trolley replacement efficiency is improved.

The application discloses an all-terrain vehicle, which comprises a frame, a walking system, a power assembly and a suspension system, the walking system comprises wheels located at least partially below the frame, the wheels comprise rims, the power assembly is fixedly connected with the frame and is in driving connection with the rims, and the suspension system is in rotary connection with the rims; the all-terrain vehicle comprises a mud scraping mechanism, the mud scraping mechanism comprises a mud scraping plate and a protruding structure located on the mud scraping plate, the protruding structure at least partially overlaps with the rims in the height direction of the frame, the protruding structure is located between the mud scraping plate and the rims, the length of the overlapping part of the protruding structure and the rims in the width direction of the frame is a protruding length, and the ratio of the protruding length to the length of the protruding structure in the width direction of the frame is 0.74 to 1. Through the above arrangement, the driving safety of the all-terrain vehicle can be improved.

The application provides an automatic telescopic dynamic self-balancing intelligent control system and method, and belongs to the technical field of intelligent control. In view of the problems of poor coordination, response lag and weak working condition adaptation ability of the existing automatic telescopic operation equipment, the system comprises a sensing module, a control module, an execution module, a communication module and an alarm module. The control module adopts a multi-loop program controller, constructs a multivariable collaborative control loop and is internally provided with an adaptive adjustment algorithm. The corresponding method realizes the synchronous control of equipment telescoping and balancing through parameter initialization, real-time parameter acquisition, collaborative instruction generation, dynamic adaptive adjustment, abnormal monitoring and reset process. The application improves the equipment control precision, response speed and running stability, and adapts to the application requirements of various telescopic operation equipment.

The application discloses a cross-modal gaze target estimation method and system based on hierarchical supervision and a medium, relates to the technical field of computer vision, and inputs a target person in an acquired RGB image into a gaze target model after adding face frame coordinate labeling to the target person, so as to generate a corresponding gaze target estimation heat map; the training process of the gaze target model is as follows: a training set is constructed, original visual features and original text features are obtained through feature extraction, a face mask and reinforced visual features are generated at the same time, the original text features and the reinforced visual features are encoded and spliced, the spliced feature sequence obtained through splicing is input into a cross-modal Transformer, the reinforced visual features are connected with visual feature residuals output by the cross-modal Transformer, and a gaze target estimation heat map is generated; hierarchical supervision loss is set to optimize model parameters; and the method improves target estimation precision.

This invention relates to the field of pastry processing equipment, specifically to ice storage coils. An ice storage coil with a bottom thin ice venting pipe includes an ice storage coil body, which comprises a coil support, ice storage pipelines, and a venting device. The ice storage pipelines are mounted on the coil support and include an inlet manifold, an outlet manifold, a first pipe, and a second pipe. The venting device is located below the ice storage pipelines; the venting device includes a venting pipe with a first venting hole and a second venting hole. This invention improves the consistency of ice accumulation at different coil heights during ice storage and promotes the melting of the bottom thin ice during melting, thereby increasing the melting rate of the internal melting ice storage coil.

The invention provides a multistage bubbling tower type gas-liquid contactor tritium extraction device and method, which is used for extracting tritium from a helium-cooled lithium-lead proliferation cladding of a superconducting magnetic confinement fusion reactor, and comprises a multistage series mechanism arranged at an outlet of the helium-cooled lithium-lead proliferation cladding and used for extracting tritium dissolved in eutectic lithium-lead alloy through carrier gas, the multi-stage series mechanism is formed by sequentially connecting multiple stages of GLC units in series, the height of each stage of GLC unit is decreased stage by stage, and the stage number of the multi-stage series mechanism is larger than or equal to thirteen. All the stages of GLC units are communicated through connecting pipes arranged at different heights, and all the stages of GLC units are arranged in the direction perpendicular to the horizontal plane, so that the problem that the liquid levels of all the GLC units are not uniform in the operation process is solved, and the overall operation stability and safety of the device are improved. Through verification, the tritium extraction efficiency of the thirteen-stage series connection mechanism can reach 90% or above, and the tritium self-sustaining operation efficiency requirement of the magnetic confinement fusion reactor can be met.

This application provides an optimization method and related equipment for new energy vehicle charging scenarios on highways, belonging to the field of strategy optimization technology. The method includes: acquiring static basic data and dynamic real-time data of highway service areas; generating multiple candidate charging guidance strategies in a discretized decision space based on the static basic data and dynamic real-time data; rapidly evaluating each candidate charging guidance strategy to obtain a three-dimensional objective vector corresponding to each strategy; the three-dimensional objective vector includes a power grid load stability objective, a user waiting time objective, and a traffic congestion objective; selecting the optimal solution set from all candidate charging guidance strategies based on a non-dominated sorting algorithm, and determining the final charging guidance strategy from the optimal solution set using the ideal point method; executing the final charging guidance strategy and performing rolling optimization based on real-time feedback data. This application embodiment can ensure the high efficiency of new energy vehicle charging guidance operation in highway service areas.

The invention relates to the technical field of municipal water circulation filtration and separation, in particular to a municipal greening irrigation water circulation system. Comprising a circulating water tank, a filtering part is rotationally arranged in the circulating water tank, and a water inlet pipe is arranged on the upper side of the filtering part; the filtering part comprises a connecting base, a supporting base and two filtering cylinders connected between the connecting base and the supporting base, the connecting base is provided with a water inlet filter screen, the filtering cylinders are detachably connected with the supporting base, the supporting base is provided with an annular containing groove, the upper portion of the containing groove is provided with a connecting groove, the connecting groove is used for containing the filtering cylinders, and the supporting base is provided with a water outlet. A locking part is arranged in the accommodating groove and is used for limiting the lower end of the filter cartridge. Through the design of the rotatable filtering part (containing double filtering cylinders) and the circulating water tank, dynamic filtering separation and cyclic utilization of irrigation water are achieved, the utilization rate of water resources is remarkably increased, and waste is reduced.

This application provides an LED lamp bead and an LED light source, belonging to the field of LED technology. It includes: a substrate; at least one blue LED chip located on the substrate; and a phosphor layer located on the substrate and the blue LED chip. The phosphor layer contains a first nitride red phosphor, a second nitride red phosphor, a fluoride red phosphor, a green phosphor, and a yellow-green phosphor. The peak wavelength of the fluoride red phosphor is greater than the peak wavelength of the first nitride red phosphor and less than the peak wavelength of the second nitride red phosphor. This allows the LED lamp bead to achieve both a high color rendering index and good luminous efficiency.

The utility model relates to a forklift, in particular to an anti-toppling forklift. Comprising a forklift body and a fork arm carrier, a frame body is arranged at the bottom of the forklift body, electric sliding tables are symmetrically installed in the frame body, a weight bearing block sliding front and back in the frame body is arranged between sliding blocks of the two electric sliding tables, a cover plate is arranged on the frame body in a buckled mode, and an inclination angle sensor used for monitoring the inclination angle is arranged on the cover plate; an extension plate is arranged on the top of a fork frame of the fork arm carrier, and air cylinders are symmetrically installed in the extension plate. Through the structural arrangement that the air cylinders drive the side plates and the hinged plates, the stability of goods in the transportation process is ensured, forklift unbalance caused by goods sliding is prevented, the toppling risk is further reduced, meanwhile, the inclination angle of the forklift is monitored in real time by combining an inclination angle sensor and a weight bearing block driven by an electric sliding table, and the safety of the forklift is improved. And the position of the weight bearing block is adjusted according to needs, so that the gravity center of the forklift is dynamically adjusted, and the forklift is effectively prevented from toppling when the forklift carries heavy objects or runs on an unstable ground.

The invention discloses a unit frequency control method and device, a storage medium and heating and ventilation unit equipment. In a multi-unit parallel system, a host serves as a unique instruction center to uniformly schedule all units to start, it is ensured that the units synchronously enter a controlled state, and a foundation is laid for a follow-up unified frequency strategy. After the system is started, the host calculates and issues the optimal frequency range, so that the slave operates in the efficient interval, and the overall energy efficiency and the individual fine tuning space are both considered. During operation, the host continuously monitors multi-dimensional parameters of the system during operation, the adaptability of the current frequency range to actual requirements is evaluated, and accurate state diagnosis and data support are achieved. And when the original range cannot meet the requirement, the host dynamically calculates and synchronizes the updated frequency range to all the slaves. According to the mechanism, the overall energy efficiency of the system is maintained to be optimal, the units are ensured to be coordinated when the load is increased, the output capacity is smoothly improved, and the overall stability and reliability of the system are improved.

The utility model discloses a kind of frame steering structure, it is related to motorcycle technical field, including frame, the top of frame is fixedly connected with sleeve, the downside of sleeve is connected with support frame in frame, detachably connected with steering rod between support frame and sleeve, steering rod is connected with handle in sleeve one end close to, steering rod is connected with limit structure in support frame one end close to;The utility model steering rod is arranged in the multi-tube structure cavity of frame, frame is formed to steering rod circumferential encircling type protection, significantly reduce the risk of deformation or fracture of steering rod due to collision or jolt in the process of riding. Sleeve is formed triangular stable structure with frame by double connecting rod, and welding fixation further enhances torsional strength;Sleeve and support frame are respectively arranged at the axial two ends of steering rod, forming "double fulcrum" support system. The stepped diameter-reducing design of link rod realizes the quick clamping with link ring, and the disassembly and assembly of steering rod can be completed without additional fasteners.

This invention discloses a low-load denitrification-deep peak-shaving system based on molten salt thermal energy storage and its operating method. The system includes a coal-fired power generation system and a molten salt thermal energy storage system. The coal-fired power generation system includes a boiler, a denitrification device, a deaerator, and an industrial steam header. The molten salt thermal energy storage system includes a first flue gas heating path, a second flue gas heating path, and a molten salt thermal energy storage path. The coal-fired power generation system provides electricity to the molten salt thermal energy storage path, high-temperature molten salt provides a heat source for the first flue gas heating path, and high-temperature steam provides a heat source for the second flue gas heating path. The high-temperature steam is obtained by heating condensate with high-temperature molten salt. This invention adds two methods of heating flue gas for energy release: high-temperature molten salt and high-temperature steam. This avoids the imbalance between the input and output energy of the molten salt thermal energy storage system when the steam demand is insufficient, and reduces the cost of the thermal energy storage molten salt and investment. This invention uses molten salt energy storage to increase the flue gas temperature, ensuring the denitrification capability of the unit during low-load operation.

This invention relates to a method for controlling the yaw of a wind turbine system by controlling multiple yaw drive actuators. When the yaw drive actuators apply the same torque to all motors, if the motors are not engaged when the yaw system is activated, this can cause some motors to overspeed. Therefore, if the actual motor speed reference of a yaw drive actuator is higher than a specific motor speed reference, an output signal is applied to the yaw drive actuator whose actual motor speed reference is higher than the specific motor speed reference to reduce the actual motor speed reference.

The utility model relates to a kind of elevator hoisting machine vibration reduction machine base, including telescopic mechanism, spring mechanism and support mechanism, telescopic mechanism includes upper plate, lower plate, piston cylinder, stand, upper fixed sheet and lower fixed sheet;Upper plate and lower plate are symmetrically arranged up and down;Upper fixed sheet is connected in piston cylinder top end;Lower fixed sheet is connected in stand bottom end;Upper fixed sheet is connected with upper plate by bolt;Lower fixed sheet is connected with lower plate by bolt;Piston cylinder and stand are equipped with multiple groups and circumferentially distribute;Stand and piston cylinder are all connected with mounting plate;Stand is connected with upper support plate;Piston cylinder is connected with lower support plate;Spring mechanism is equipped with two groups and can be detachably connected on mounting plate;Support mechanism is equipped with two groups and is connected between upper support plate and lower support plate.The utility model can realize only replacing damping spring, without replacing together with stand and piston cylinder, reduce the burden and cost when replacing.

This utility model discloses a multi-layer chick incubator that is easy to clean, including a box body and sliding guide rails disposed on both sides of the box body, and a pull-out assembly slidably disposed within the sliding guide rails. Multiple sets of sliding guide rails and pull-out assemblies are correspondingly arranged along the height direction. It also includes a heating assembly and a humidifying assembly. The pull-out assembly includes a support compartment with two ends slidably disposed on the two sliding guide rails via sliders. The support compartment has a storage cavity, and a collection drawer slides within the storage cavity. The collection drawer is a cuboid structure with an open top, and its left and right edges are slidably connected to the slide rails of the storage cavity. The collection drawer passes through the storage cavity and extends to the outside. A support recess is provided at the top of the support compartment, and positioning posts are provided at the four corners of the support recess. It also includes an incubation rack. This utility model relates to the technical field of poultry incubation equipment, specifically providing a multi-layer chick incubator that is easy to clean.

The utility model discloses a dismounting and mounting working platform for sewage treatment equipment, and relates to the technical field of sewage treatment equipment maintenance. The device comprises a movable rack, a jacking assembly loaded at the bottom of the movable rack, and a clamping and positioning assembly arranged at the top of the movable rack, the movable rack comprises a supporting frame and a mounting plate fixed to the bottom of the supporting frame. The jacking assembly comprises a pedal driving unit and a jacking unit which are fixed to the upper portion of the mounting plate, and a pipeline is connected between the pedal driving unit and the jacking unit; the clamping and positioning assembly comprises a motor and a speed reducer which are fixed to one side of the top of the supporting frame, a shaft rod is installed on the speed reducer in a matched mode, a lower clamp is fixed to the peripheral side of the shaft rod, and an upper clamp is fixed to the upper side of the lower clamp through a fastener. According to the utility model, a mechanical device is used for replacing part of manual operation, and the motor reduction gearbox is used for realizing the function of all-directional rotation, so that the rotation operation of equipment in the dismounting and mounting processes is facilitated, and the operation efficiency is improved.

A monitorable anti-overturning structure for a single-column bridge pier includes lower nested stirrups, upper nested stirrups, steel structural bracing, a horizontal support platform, a vertical support column, perforated rubber bearings, and a structural health monitoring system. The lower and upper nested stirrups are respectively fitted onto the pier column, one at the bottom and one at the top. The two sides of the lower nested stirrups are fixedly connected to the lower ends of the steel structural bracing, and the upper ends of the steel structural bracing are fixedly connected to the horizontal support platform. The upper nested stirrups are connected to the horizontal support platform via horizontal cables. The horizontal support platform is fixedly connected to the vertical support column, which is fixed to the bridge beam via perforated rubber bearings. The structural health monitoring system includes sensor arrays located at key locations to monitor the beam tilt angle, bracing strain, and bearing reaction force. This invention not only significantly enhances the physical resistance of single-column pier bridges to overturning but also integrates a structural health monitoring system, enabling real-time perception and intelligent early warning of key parameters such as bridge stress and deformation.

This utility model relates to the field of agricultural engineering technology and discloses a slow-release device for saline-alkali soil conditioner. It includes a square box, with a mounting plate fixedly connected inside. A motor is fixedly connected to the left end of the mounting plate, and a gear is fixedly connected to the drive end of the motor. A cylinder is connected to the inner wall of the square box, and a connecting rod is fixedly connected to the drive end of the cylinder. A fixing plate is fixedly connected inside the square box, and a circular plate is fixedly connected to the bottom end of the connecting rod. A gear is rotatably connected to the bottom end of the fixing plate. In this utility model, the stirable slow-release device is compatible with various forms of conditioners, including solid, liquid, and suspended states, and even supports compound formulations. The stirrer, through shearing and dispersing action, uniformly mixes components of different densities, preventing heavy particles from sinking and light components from floating, ensuring a stable proportion of the released conditioner components.

The application discloses a kind of wetland bird water breeding auxiliary device and its control method, including four support columns inserted into mud, and the top of four support columns is fixedly connected with first support plate;Lifting platform for adjusting height, lifting platform is set in the top of first support plate, and the top of lifting platform is fixedly connected with second support plate;Leveling device for adjusting level, leveling device is located in the top of second support plate;The top of leveling device is connected with nest disc;It further includes control assembly for controlling and adjusting the height and level of nest disc.The present application overcomes the problem of passive following water level by pure mechanical device, and cannot actively adapt to leveling according to the inclination of platform, by setting lifting platform, leveling device, radar water level sensor and inclination sensor, avoids the rolling of bird eggs and the imbalance of nest body caused by platform inclination, and ensures the stability of breeding platform posture.

The invention discloses a photovoltaic low-voltage transformer area line loss abnormity sensing method considering intermittent electricity stealing, and belongs to the technical field of power system monitoring, and the method comprises the steps: obtaining key operation indexes of each transformer area, and constructing a feature vector; screening abnormal courts by adopting an isolated forest algorithm; identifying the abnormal reason of each abnormal transformer area, and outputting the result of the abnormal transformer area with the abnormal reason of the power utilization side abnormity or the secondary index abnormity; performing electricity stealing identification on the photovoltaic abnormal zone area, if no electricity stealing user exists, determining the abnormal reason as photovoltaic technology abnormity, if electricity stealing users exist, correcting the line loss rate of the photovoltaic abnormal zone area, then judging whether the photovoltaic abnormal zone area is recovered to a normal zone area, if so, outputting an electricity stealing identification result, and if not, identifying the abnormal reason again; and the electricity larceny identification result and the abnormal reason of the secondary identification are combined and then output. The method does not depend on topology, adapts to a line loss anomaly sensing framework of photovoltaic access, and improves the anomaly reason diagnosis precision and comprehensiveness.