158results about How to "Shorten positioning time" patented technology

The invention discloses a power grid anomaly detection and diagnosis method based on artificial intelligence and topological data analysis. The method comprises the steps of S1, forming power operation data; s2, constructing a topological network model of the power grid based on the physical structure of the power grid; s3, using a first generator to generate abnormal data in the simulation power grid based on the power operation data; s4, optimization abnormal data generation is carried out; s5, embedding the power operation data and topological structure features of the power grid into the anomaly detection model through a graph convolutional network; s6, power grid anomaly detection parameters are dynamically adjusted through the adaptive learning model, so that the anomaly detection model is continuously optimized along with the change of the power grid operation condition; and S7, based on the topological information and abnormal data generated by the generative adversarial network, combining topological data analysis, and positioning a fault node or an abnormal line in the power grid. According to the invention, the accuracy of fault prediction and positioning is improved.

The invention relates to the technical field of power supply monitoring, in particular to a power supply monitoring system with a hierarchical authority encryption function, which comprises an edge calculation processing module for reading voltage, current and load data based on a power supply monitoring node, calculating voltage fluctuation in sections, monitoring current change in real time, comparing amplitude and screening a sudden change value; load balance and abnormity are judged, and power node fluctuation characteristics are generated. According to the method, the current and voltage signal characteristics are analyzed step by step by adopting the mode matching algorithm, the power abnormal event is accurately captured, the identification efficiency of the fault event is effectively improved, the false alarm and missing report conditions are reduced, and the accuracy and timeliness of power monitoring are ensured; the fault source node is positioned by using the Bayesian network in combination with the power grid topological relation, so that the fault point is quickly and accurately judged, the positioning time is shortened, the monitoring and management level of the power system is improved, and the stability and safety of the system are enhanced.

The invention discloses a primary and secondary collaborative planning method based on a novel power distribution system, and relates to the technical field of power system optimization, and the method comprises the following specific steps: constructing a power distribution network model and fault feature analysis, designing an adaptive protection mechanism, realizing a rapid fault processing mechanism, and performing primary and secondary system collaborative planning. And implementing and verifying: implementing a planning method in the power distribution network, installing and debugging related equipment, carrying out field test, and verifying the effectiveness of an adaptive protection mechanism and a fault rapid processing mechanism, the running state of the power distribution network is monitored in real time, and the protection constant value is automatically adjusted according to the monitored fault characteristic parameters, so that the reliability of the power distribution network is improved. Therefore, the adaptive capacity of the system to a complex and changeable operation environment is remarkably improved, the dynamic adjustment mechanism can quickly respond to dynamic factors of new energy output fluctuation and load change, it is ensured that a protection strategy is always matched with the operation state of the system, and the problem of protection maloperation or operation refusal caused by rigid setting of a fixed value is effectively prevented.

The invention discloses a power distribution network fault management system and method with a rapid positioning function, and relates to the technical field of power distribution network management, and the system comprises a data collection module, a data analysis and processing module, a fault positioning module and a display and decision module. According to the power distribution network fault management system and method capable of achieving rapid positioning, the power distribution network fault management system is arranged, positioning errors caused by inaccurate data are reduced by means of high precision of a sensor and data preprocessing measures, multiple times of fault positioning are completed, the fault generation area is determined preferentially, and the fault management efficiency is improved. And then the node is combined to realize the specific judgment of the fault generation position, so that the exact positioning operation of the fault can be quickly completed, the interference of external factors is eliminated, the positioning accuracy is effectively improved, and meanwhile, the omnibearing management of each region of the power distribution network is facilitated.

The invention relates to the technical field of monitoring and maintenance, in particular to an unmanned aerial vehicle automatic airport monitoring and maintenance system based on real-time data analysis. The system comprises a detection analysis unit, an analysis prediction unit, a time prediction unit, a flight adjustment unit and a planning maintenance unit. According to the invention, the planning maintenance unit plans the wind-sheltering path from the position point of the unmanned aerial vehicle to the position point where the foreign matter rolls down in the airport runway according to the acquired wind power data, the acquired wind speed data and the acquired wind direction data, and then the unmanned aerial vehicle flies from the moment t according to the flight attitude of the unmanned aerial vehicle needing to be adjusted according to the planned wind-sheltering path. When the unmanned aerial vehicle flies to a position point where a foreign matter rolls down in an airport runway, automatic maintenance is carried out, when the unmanned aerial vehicle flies under the conditions of reduced wind power and optimized flight attitudes according to a planned wind sheltering path, a strong wind area can be effectively avoided, the flight stability is ensured, and the unmanned aerial vehicle is safe and reliable. And a foreign matter position point is reached in the shortest time, so that the searching and positioning time is shortened, and the airport runway maintenance efficiency is improved.

The invention discloses a land-based data automatic receiving and preprocessing management system and method, and relates to the technical field of ocean observation data processing, and the system comprises a communication service subsystem, a data preprocessing subsystem, an intelligent perception linkage subsystem, and a data management subsystem. And full-process automatic processing of underwater acoustic real-time communication subsurface buoy observation data is realized through modular integration. Automatic receiving, safe storage and efficient preprocessing of deep sea power and biogeochemical element data are achieved, reliable data support is provided for marine scientific research and environment monitoring, and the long-term observation requirement of a 6000-meter water depth subsurface buoy system is met.

A pneumatic horizontal centering clamp for a rear cover of a variable-displacement automobile air-conditioning compressor belongs to the field of automobile air-conditioning compressor processing tools and comprises a bottom plate, a positioning disc, a lever cylinder and a reference positioning rod, the positioning disc and the lever cylinder are respectively mounted on the bottom plate, a positioning plane is arranged at the upper end of the positioning disc, and a detachable positioning pin is mounted on the positioning plane. The two lever air cylinders keep synchronous linkage, pressing rods of the lever air cylinders are provided with abutting blocks, the reference positioning rod corresponds to the rear cover structure of the automobile air conditioner compressor and is also installed on the bottom plate at the same time, further, the bottom plate adopts the split design of the positioning bottom plate and the air cylinder bottom plate, and the positioning pin is detachably connected with the positioning disc. The adjustable bolt rod is selected as the abutting block, switching use can be conducted according to the structural difference of machine types, models and displacement of the rear cover of the automobile air conditioner compressor, high universality is achieved, meanwhile, clamping pressure is balanced, positioning precision is high, labor intensity is low, production cost can be reduced in production, product quality is guaranteed, and production efficiency is improved.

The utility model discloses a construction positioning auxiliary device for a stiff composite pile, which comprises a positioning frame, and a guide component is arranged on the positioning frame; the guide assembly comprises a plurality of bearing seats fixedly connected with the positioning frame, the bearing seats are rotationally connected with first shaft rods, the bearing seats are rotationally connected with a plurality of second shaft rods, and the first shaft rods and the second shaft rods are fixedly sleeved with rope shafts. According to the auxiliary device, the guide assembly is arranged, when construction of the stiff composite pile is conducted, the auxiliary device is arranged at a pile point, then a cement pile is driven in, after the cement pile is driven in, a prefabricated pipe pile is hoisted to the auxiliary device to be added, then the prefabricated pipe pile is clamped through the clamping sleeve, then the first shaft rod is rotated, and the auxiliary device is driven into the cement pile. And the rope shafts are driven to rotate, so that the position of the prefabricated pipe pile is adjusted through the pull rope until the position of the prefabricated pipe pile is aligned to the center point of the cement pile.

The invention relates to the technical field of precision casting, in particular to a method for controlling the wall thickness of a wax mold of a complex hollow single crystal turbine blade and the wax mold. According to the method, ceramic cores are screened by obtaining the profile size of the sections, corresponding to the wall thickness points of the wax mold, of the ceramic cores; then, positioning bosses are matched with positioning holes, the screened ceramic mold cores are placed in a wax mold for positioning, wax is injected into the wax mold, and a blade wax mold is manufactured; detecting the wall thickness of a blade wax mold and the wall thickness of a corresponding casting, and obtaining a wall thickness change value; and finally, according to the wall thickness change value, the maximum value and the minimum value of the wall thickness of each detection point of the wax mold are obtained, so that the wall thickness of the wax mold produced subsequently is accurately controlled, the casting wall thickness out-of-tolerance caused by improper wax mold wall thickness control requirements is avoided, and the casting wall thickness qualification rate is increased. The problem that in the prior art, due to shrinkage of a ceramic core, the wall thickness of a wax mold of the single-crystal turbine working blade cannot meet the process requirement is solved.

The invention relates to the technical field of effusion treatment devices, in particular to a tumor effusion extraction mechanism which comprises an extraction cylinder capable of puncturing and extracting tumor effusion by generating negative pressure, and further comprises an extraction support used for positioning and mounting the extraction cylinder, an adjusting seat with adjustable position and angle is mounted on the extraction bracket; the base is arranged on the adjusting seat, the base can be adjusted in a sliding mode in the direction of the adjusting seat, a clamp is installed on the base and used for fixing a main body of the extraction cylinder, and the extraction cylinder can conduct puncturing along with movement of the base; the pulling structure is used for controlling a piston on the extraction cylinder, and the pulling structure is installed on the base and located above the base; the lifting driving structure is used for driving the pulling structure, and the lifting driving structure has the extraction speed control capability; the purposes of accurately extracting effusion and improving the comfort level of a patient can be achieved.

The utility model discloses bearing seat machining and drilling equipment, relates to the technical field of bearing seat machining, solves the problems that an existing device is poor in clamping effect and low in drilling efficiency, and adopts the following scheme that a working box is fixedly installed on the top face of a base. Through the arrangement of the rotating motor, the rotating motor can drive the bearing seat to rotate to change the direction, so that the clamping block can conveniently clamp and fix the bearing seat from different angles according to the difference of the bearing seat, the stability and firmness of clamping and fixing are improved, and meanwhile, through the arrangement of a moving box, a sliding groove, a second lead screw and a moving block, the bearing seat can be conveniently clamped and fixed. Two groups of punching mechanisms can be arranged on the second screw rod, the two groups of punching mechanisms can punch the bearing seat at the same time, the punching efficiency is improved, meanwhile, due to the fact that holes needing to be punched in the bearing seat are axisymmetric, when a next hole is positioned, only one group of punching mechanism is needed for positioning, and the positioning time is shortened.

The application discloses a fan shell front and rear hole position positioning method and system based on image recognition, comprising the following steps: S1: collecting a fan shell image through a calibrated binocular camera, and performing stereo correction and illumination invariance enhancement processing to obtain binocular enhanced image data; S2: performing instance segmentation on the binocular enhanced image data based on an instance segmentation neural network to obtain a hole position pixel region set with front and rear semantic labels; S3: performing data-driven hole position coarse matching on the hole position pixel region set through a graph neural network, and constructing a physical constraint rule model to optimize and verify the matching result, and outputting an accurate image matching pair set of the front and rear hole positions; and S4: based on the accurate image matching pair set, constructing a cost function to solve the shell pose and obtain final world coordinates, and realizing the front and rear hole position positioning of the fan shell.

The utility model provides a kind of automatic plug-in mechanism, including feeding device, including the first feeding station and the second feeding station of opposite arrangement, the first feeding station and the second feeding station are placed respectively and test product of plug-in component;Alignment device is located between the first feeding station and alignment device, the camera module is used to shoot the position image and recheck photograph of the test product plug-in point, and the image of shooting is sent to control device;Plug-in device is located between the first feeding station and alignment device, responsible for grabbing and moving plug-in component, and with the test product is plugged in;Control device receives the image information of the camera module shooting, generates drive instruction according to image information, to drive the plug-in device grab, move and plug in the plug-in component.The utility model changes the arrangement direction of photograph camera, realizes positioning photograph and recheck photograph of upper and lower layer simultaneously, to improve the efficiency of equipment.

The application discloses a kind of integrated hair concentrator multi-fault diagnosis method and equipment, relating to swimming pool water treatment technical field, wherein the method comprises: real-time acquisition inlet, hair filter section outlet, ultraviolet disinfection section import and outlet negative pressure P1,P2,P3 and P4;Calculate filtration pressure drop ΔP1 and disinfection pressure drop ΔP2;And first judge whether P1 is less than safety threshold to trigger anti-adsorption emergency stop;If not, based on the comparison of ΔP1 and ΔP2 and their respective cleaning reference value, accurately distinguish and diagnose hair filter section blockage or ultraviolet disinfection section internal blockage fault;If both are normal, based on radiation intensity, judge the efficiency of ultraviolet lamp tube.Secondly, the equipment includes corresponding negative pressure sensor, controller and actuator, wherein the ultraviolet disinfection section uses integrated built-in scraping type cleaning component.The application realizes the intelligent identification and directional maintenance of multi-stage fault, improves safety, energy efficiency and maintenance convenience.

The invention relates to a performance test analysis positioning method based on artificial intelligence, and belongs to the technical field of software performance test problem positioning. The method comprises the steps that historical performance test multi-source data is acquired, a preset performance problem library is constructed through performance data matching, a performance problem analysis initial model is obtained through fine adjustment of a pre-trained Bert large model according to the preset performance problem library, pruning is conducted through an L1 norm pruning device, fine adjustment is conducted again, and a performance problem analysis model is obtained; obtaining performance test information and outputting a performance problem category through the performance problem analysis model; according to the performance test information and the performance problem category, performance problem positioning information is obtained through a pattern matching retrieval algorithm, the recognition precision and positioning efficiency of the performance test problem are remarkably improved, and the problem that performance problem analysis excessively depends on expert experience is effectively solved. And efficient and reliable performance test problem automatic analysis is realized.

The utility model relates to the technical field of linear guide rail positioning pins, and discloses a linear guide rail positioning pin convenient to position, which comprises a sliding rail, the top of the sliding rail is connected with a sliding block in a sliding mode, one side of the sliding rail is integrally connected with a magnet, one side of the magnet is connected with a positioning mechanism in a magnetic attraction mode, and the positioning mechanism is connected with the sliding block in a sliding mode. Supporting mechanisms are welded to the front face and the back face of the sliding rail correspondingly, and semi-circle blocks are welded to the bottoms of the two supporting mechanisms. According to the linear guide rail positioning pin convenient to position, a magnet and a positioning mechanism are arranged, a positioning pin body slides to a proper position under the action of a sliding rail and a sliding block, an inserting rod is loosened, and under the action of reverse extrusion force provided by a spring, the inserting rod drives an iron block to move leftwards till the surface of the iron block is attached to the surface of the magnet; and the magnet can generate magnetic attraction on the iron block, so that the iron block can be fixed, the positioning pin main body can be conveniently positioned, the positioning time is shortened, and the working efficiency is improved.

This invention discloses a dual-station three-dimensional cross-location method based on grid search, belonging to the field of electronic countermeasures reconnaissance technology. Based on the azimuth-elevation angle vectors measured by reconnaissance equipment at two stations (air or ground), the direction-finding vectors of the corresponding radiation sources at each station are transformed into a northeast-sky coordinate system with their respective stations as the origin. Then, the dual-station direction-finding vectors are transformed into the same coordinate system using a coordinate system transformation method. The coordinates of the radiation sources are searched using a grid search method that minimizes the straight-line distance between opposite planes. Finally, the coordinates of the radiation sources searched multiple times are clustered to obtain the optimal positioning coordinates.

A laser-assisted positioning mechanism for spinning belongs to the technical field of mechanical processing. The mechanism aims to solve the problems of low precision and long calibration time in the traditional positioning method of multi-axis numerical control spinning equipment. It includes a sliding table module composed of a sliding table support and a sliding table body. The sliding table body is connected to the sliding table support through a linear guide rail. A servo motor drives the displacement of the sliding table body through a synchronous belt transmission mechanism, which includes a first synchronous wheel, a second synchronous wheel, and a closed-loop synchronous belt. The bottom of the sliding table body is fixed to the synchronous belt. A laser level is rigidly fixed to the side of the sliding table body through four symmetrical mounting holes and a mounting slot, projecting a laser reference line parallel to the axis of the spinning wheel. The bottom of the sliding table support is provided with a double fixed seat, which is rigidly connected to the processing platform through bolts. The mechanism realizes a displacement accuracy of 0.1 millimeters through closed-loop control of the servo motor, allowing the laser reference line to be dynamically adjusted along the axis of the spinning wheel.

The invention discloses a water-rich stratum TBM tunnel front surrounding rock water content and seepage water pressure combined detection method, and aims to solve the problem that related measurement is difficult in the prior art. Two sets of drill holes are formed in the symmetrical positions of the three o'clock and the nine o'clock of the two waists of a tunnel behind a TBM shield through a jumbolter, a pair of electromagnetic wave transmitting antennas and a pair of electromagnetic wave receiving antennas are installed in the drill holes respectively, the boundary position of a water-containing body in front of the TBM is detected through wave impedance, and the water content is calculated through three-dimensional imaging; near a water-rich area detected by electromagnetic waves, an advanced drilling machine is used for forming two drill holes in the 1st-half position and the twelve-half position of the top of a TBM shield, and a vibrating wire data acquisition instrument is used for monitoring the seepage water pressure of the surrounding rock of the tunnel. The water content of the surrounding rock in front of the TBM tunnel can be detected, the seepage water pressure can also be detected, and a decision basis is provided for water burst and mud burst in TBM construction.

This application relates to the field of tracing the causes of cross-border returns, disclosing a method, apparatus, electronic device, and storage medium for tracing the causes of cross-border returns. The method includes: deeply fusing multilingual text comments and image evidence using joint semantic vector technology; dynamically associating front-end return data with back-end supply chain data through root cause mapping to form a preset root cause map, thereby tracing the causes of returns based on return comment information. The beneficial effects of this invention are: breaking down data silos, accurately identifying deep causal relationships, significantly reducing the root cause misjudgment rate, shortening the root cause location time for cross-border returns, and improving the accuracy of supply chain responsibility allocation, thus achieving precise tracing of the causes of cross-border returns.

The application discloses a kind of visual and probe fusion guided tire block automatic drilling and milling machine processing method, including six-axis machine tool and control system, electric spindle, tool magazine, block clamping mechanism, fixed binocular vision system, follow-up binocular vision system, custom light source, wireless probe, tool setting gauge, visual host computer.Through machine tool and vision system joint calibration, first complete process hole automatic identification and drilling, then carry out binocular depth reconstruction to the outer side of the block after turning over, combined with the depth correction of wireless probe detection measurement, generate accurate three-dimensional point cloud, finally automatically plan chamfer and milling groove track and complete processing.The application fuses visual depth estimation and contact probe precision measurement, realizes drilling, chamfering and milling groove integrated automatic precision machining on a single device, with the advantages of high efficiency, high precision and good consistency.

The utility model discloses a drilling and milling machine with upper and lower drilling bags, and belongs to the field of drilling and milling machines, the drilling and milling machine comprises a first cross beam and a second cross beam, the first cross beam is slidably provided with two first Y-axis sliding plates, the second cross beam is slidably provided with two second Y-axis sliding plates, the first Y-axis sliding plates are provided with upper drilling bags, the second Y-axis sliding plates are provided with lower drilling bags, and the first Y-axis sliding plates are connected with a first driving motor; the first driving motor and the second driving motor are connected with a controller through electric wires, a distance sensor is arranged on the side face of the first Y-axis sliding plate / the second Y-axis sliding plate, and the first driving motor and the second driving motor control the positions of the upper drilling bag and the lower drilling bag correspondingly by designing an independent driving system. According to the invention, each drill package can independently and accurately move to the required position, the requirements of repeated positioning and drill package moving are reduced, unnecessary moving and positioning time is reduced, errors introduced in the machining process can be obviously reduced, and the machining precision is improved.

The utility model discloses a blood taking tube cover device for automatic assembly line, including two sliding frames and assembly seat, two sliding frames keep parallel, and the inboard slide connection of sliding frame has a plurality of sliding rings, and the fixed connection of between upper and lower sliding rings has two synchronous bars, and two synchronous bars respectively through the both ends surface of limiting fixture and with limiting fixture slide connection, and the inboard of limiting fixture has blood taking tube body, and the surface of sliding ring directly above blood taking tube body inserts and has cover body, the utility model discloses two sliding frames are set up to convey blood taking tube body and cover body respectively, and every group sliding ring is connected with synchronous bar, thereby guaranteeing that both are always on same vertical line in the conveying process, guaranteeing that subsequent assembly can be realized fast through pressing, need not using complex machinery to position, and the accurate alignment of both can be realized only through mechanical linkage, effectively shorten single assembly positioning time, and the efficiency of assembly line operation is improved significantly.

The present invention provides a two-component polyurethane structural adhesive and its application. The two-component polyurethane structural adhesive of the present invention is prepared by screening a specific type and ratio of bisphenol A modified polyether polyol, castor oil modified polyol, heat-activated catalyst, inorganic filler, thixotropic agent, dewatering agent to prepare component A, and a specific type and ratio of terminal isocyanate polyurethane prepolymer, polyisocyanate, silane coupling agent, dewatering agent, inorganic filler and thixotropic agent to prepare component B. When component A and component B are compounded and used in a volume ratio of 1:1, the normal temperature operation time can reach more than 60 minutes, the curing speed can be increased by short-term heating, the positioning time can be shortened, the bonding strength to aluminum and PET is high after curing, and it is suitable for bonding and fixing of large battery cell components with complex processes.

The invention relates to a machine room ceiling condensation and leakage monitoring and processing method, device and equipment and a medium. The method comprises the steps that environment temperature and humidity data and leakage detection signals in a machine room are collected in real time; determining a condensation risk index corresponding to each cabinet in the machine room through the temperature and humidity data and preset equipment arrangement parameters; and determining a corresponding dehumidification strategy and / or drainage strategy based on the condensation risk index and the leakage detection signal, and correspondingly processing the machine room. The device has the effect of improving the machine room ceiling accumulated water and leakage treatment efficiency.

The utility model relates to the technical field of fuel cells, in particular to an insulation fault diagnosis system of a fuel cell system, the fuel cell system and a vehicle. The diagnosis system comprises a troubleshooting assembly which is provided with a plurality of troubleshooting nodes and is used for adjusting the connection state between the plurality of troubleshooting nodes and a plurality of to-be-troubleshot points according to the current troubleshooting requirement; and the control assembly is respectively connected with the plurality of troubleshooting nodes and is used for sending a current troubleshooting demand to the troubleshooting assembly and determining parts in an insulation failure state in the fuel cell system according to the troubleshooting result of each to-be-troubleshot point after the troubleshooting assembly adjusts the connection state between the plurality of troubleshooting nodes and the plurality of to-be-troubleshot points. Therefore, by means of the insulation fault diagnosis system, the problems that in the prior art, when insulation fault diagnosis is carried out, specific fault parts cannot be automatically positioned, and insulation faults caused by high-voltage loop failure or cooling loop failure cannot be distinguished can be solved.

This utility model belongs to the field of chemical experimental technology and discloses a safe management storage cabinet, including a cabinet device for independently placing chemical reagents. The cabinet device is equipped with a moving device for positioning and a retrieval device for inserting and placing chemical reagents. The cabinet device includes a cabinet body, with an access component at the front for improved safety and individual access to chemical reagents. Several storage slots are evenly distributed on the rear wall of the cabinet body, and reagent racks are placed in the storage slots. The moving device includes a moving frame. The retrieval device includes a selection component for reciprocating movement, with a swing motor installed on the selection component, and an insertion / removal bracket installed at the output end of the swing motor. This utility model's safe management storage cabinet, by independently placing chemical reagents and allowing unified access through the access window, reduces the risk of frequent opening and closing of the cabinet door, improving the safe storage of chemicals such as explosives, highly toxic substances, or volatile chemicals.

This invention belongs to the technical field of fast reactor installation, commissioning, operation, and routine maintenance, specifically relating to a local alarm device for a distributed sodium leak detector. A switch, power supply, alarm light, display screen, buzzer, and resistance display control meter are connected in series between two wires. The power supply and alarm light are grounded. After startup, tweezers at the end of the wires are used to clamp the two metal wires after the ceramic insulated terminal of the sodium leak detector to begin measurement. If a value is displayed, it indicates a short circuit in the sodium leak wire, and the location of the short circuit is determined. This invention quickly locates the fault point of the sodium leak wire, reducing the time and labor required for disassembling insulation during maintenance.

The utility model relates to the technical field of molecular pump power supply assembly, in particular to a molecular pump power supply assembly tool which comprises a bottom plate, a supporting arm and at least two supporting blocks, the supporting arm is detachably installed on the bottom plate, a positioning rod is formed at the end, away from the bottom plate, of the supporting arm, and the supporting blocks are detachably installed on the bottom plate. A groove is formed in the supporting block. According to the utility model, the support arm is used for supporting the shell of the molecular pump power supply, and the support block is used for placing components and is opposite to the assembly position of the molecular pump power supply, so that the assembly position of the components is fixed, two components can be assembled at the same time each time, and the assembly quality and efficiency are improved.

This utility model relates to a precision positioning mechanism for a transport trolley, comprising a transport trolley and a precision positioning mechanism. The precision positioning mechanism is fixed to the ground and used to guide and lock the transport trolley. The bottom of the transport trolley is provided with symmetrically arranged steel plate tracks connected to the bottom of the trolley. The precision positioning mechanism includes a guide component and a locking component. The guide component cooperates with the steel plate tracks to achieve automatic alignment and guide the transport trolley into a designated position. The locking component locks the transport trolley after it enters the designated position, achieving precision positioning. This utility model achieves automatic guidance and locking of the transport trolley through the ingenious combination of the transport trolley and the precision positioning mechanism. The core of this mechanism lies in the cooperation between the steel plate tracks at the bottom of the transport trolley and the horizontal guide wheels and roller bearings of the precision positioning mechanism. These guide components are symmetrically arranged on the wheel assembly mounting base, forming a stable guide path.