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190results about How to "Achieve reliability" patented technology

Visual inspection system of automobile door panel assembly

The invention discloses a visual detection system for an automobile door panel assembly, and relates to the technical field of automatic detection, and the visual detection system comprises the steps: installing a high-precision industrial camera, and carrying out the synchronous collection of the multi-view image data of an automobile door panel; preprocessing the acquired multi-view image data of the automobile door panel; carrying out detail enhancement on the preprocessed multi-view image data of the automobile door panel by adopting a super-resolution algorithm; integrating the enhanced multi-view image data of the automobile door panel into an automobile door panel panorama through binocular stereoscopic vision matching, and constructing an automobile door panel three-dimensional model; the automobile door panel three-dimensional model is compared with a standard automobile door panel three-dimensional model, and the buckle defect in the automobile door panel is recognized; and carrying out position marking and defect type analysis on the identified defect points, and generating an automobile door panel detection report according to the defect type analysis. According to the invention, details are enhanced by using a super-resolution algorithm, defects are accurately positioned by using a three-dimensional model, and the detection efficiency and accuracy are improved.
Owner:EAST ASIA ELECTRICAL EQUIP CO LTD

Conflict detection processing method and system based on BIM model, medium and product

The invention discloses a conflict detection processing method and system based on a BIM model, a medium and a product, and relates to the technical field of constructional engineering, and the method comprises the steps: obtaining a construction project design scheme; based on a preset model framework, determining a BIM model according to the construction project design scheme; predicting potential conflict points in the BIM model based on a preset conflict mode library; matching the potential conflict points with the building structure, the electromechanical pipeline and the equipment layout by using a space mapping algorithm, and determining possible conflict areas; on the basis of a natural language processing technology, operable solution suggestions are generated according to the possible conflict areas; after the operable solution suggestions are sent to the user, the solution suggestions determined by the user are received; and adjusting the BIM model based on the solution suggestion. By implementing the method, the accuracy and intelligence of conflict detection can be improved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Wireless communication network data secure transmission method and system

The invention discloses a wireless communication network data secure transmission method and system, and relates to the technical field of secure transmission. During system operation, agricultural monitoring data are collected in real time through various sensor devices arranged in an agricultural environment, encryption processing is performed by using a symmetric encryption algorithm, and a dynamic key length adjustment mechanism is supported; a random number generator is integrated, unified management is performed on key generation, distribution, updating and destruction in a system, a timestamp or a random serial number is embedded into each data packet, the uniqueness of the timestamp or the serial number is verified at a receiving end, so that replay attacks are resisted, and the data are comprehensively analyzed and evaluated according to a set algorithm, so that the replay attack is prevented. The method comprises the following steps: acquiring a security data transmission performance index SDTP through calculation, generating a monitoring report, detecting abnormal conditions in a data transmission process, including channel quality reduction, data loss or verification failure, and providing a visual monitoring result.
Owner:陕西旭信通网络科技有限公司

High-frequency data remote transmission method and system

The invention discloses a high-frequency data remote transmission method and system, and the method comprises the steps: dynamically adjusting the collection frequency and mode according to environment conditions, and obtaining high-frequency data in real time; based on the data type and the transmission network state, a compression algorithm, a filtering mode and a coding strategy are automatically selected; the congestion condition of the transmission network is predicted through a built-in machine learning model, and a packaging strategy and transmission parameters are dynamically adjusted according to network conditions; in the data receiving process, the bit error rate in the transmission process is monitored in real time, abnormity in transmission is automatically detected, repair is carried out through an error correction algorithm, and if repair fails, the system automatically requests the data packet again; and the recovered high-frequency data is classified and stored according to the importance, real-time performance and storage cost of the data, and automatic storage strategy adjustment is realized in a remote database. According to the technical scheme, the high efficiency, reliability and safety of remote transmission of high-frequency data are improved.
Owner:NAT ELECTRIC POWER INVESTMENT GRP YELLOW RIVER UPSTREAM HYDROPOWER DEV CO LTD +2

Flow control method and system for electric vehicle-mounted power battery liquid cooling system

The invention belongs to the technical field of power battery cooling, and particularly relates to a flow control method and system for a liquid cooling system of an electric vehicle-mounted power battery, and the method comprises the steps: carrying out the parameterization of a geometric model of the liquid cooling system; establishing an equipment resistance model based on the equipment flow resistance characteristics; initializing flow distribution, constructing a dynamic flow distribution model, calculating the flow of each node and judging whether the flow meets a target requirement or not, and if not, readjusting the flow; calculating the resistance of each section, determining the total resistance of the pipeline, and checking the water pump lift; the flow uniformity is judged by calculating the pipeline resistance between the nodes, and if the flow is not uniform, the flow is redistributed or the pipeline design is optimized until the flow is uniform. Through flow control, the problems of non-uniform flow distribution and poor temperature consistency of multiple battery packs in the prior art are solved, the optimal working state of the power battery is ensured, overheating and overlarge temperature difference are avoided, and the operation efficiency, stability, durability and safety are improved.
Owner:HUNAN UNIV

Unmanned aerial vehicle assisted Internet of Vehicles cross-domain authentication method based on block chain and federated learning

The invention discloses an unmanned aerial vehicle assisted Internet of Vehicles cross-domain authentication method based on a block chain and federated learning, and the method comprises the steps: initializing an Internet of Vehicles system, and generating system initialization common parameters; the vehicle and the unmanned aerial vehicle complete identity registration with the control center, and the vehicle performs login verification; and respectively carrying out initial authentication and cross-domain authentication on the vehicles which are successfully logged in and verified, guaranteeing the communication security through key negotiation, and completing the cross-domain authentication of the unmanned aerial vehicle assisted Internet of Vehicles. According to the method, the reliability and the security of data in the cross-domain authentication process are realized, the privacy of the data is improved, relatively low calculation and transmission overhead in the cross-domain authentication process is realized, and the authentication efficiency is improved.
Owner:ANQING NORMAL UNIV

Digital modeling cooperation management method and system based on block chain

The invention relates to a digital modeling cooperation management method and system based on a block chain, and belongs to the technical field of cooperation management, and the method comprises the steps: building an interoperation framework of digital modeling cooperation based on an alliance chain; the participant BPMS passes the authentication of the CA identity certificate; a task node issues a collaboration task request and corresponding excitation of a new block, and a Hyperledger block chain performs information interaction by calling an intelligent contract deployed on an alliance chain to realize modeling collaboration design; digital modeling of a target task is completed by executing all cooperation task requests, and a model obtained through final consensus is determined as a modeling cooperation result to be published. According to the method, sharing and collaborative development of a digital model are realized by establishing an interoperation framework based on the block chain, modeling verification and participant reputation evaluation are realized through a consensus mechanism and reputation evaluation, and the collaborative efficiency is improved.
Owner:GUANGZHOU JIANFENG CONSULTING CO LTD

Shoe anti-rollover performance test equipment

The utility model discloses a shoe anti-rollover performance test device, comprising a simulation foot device which comprises a simulation leg model and a simulation foot model, the simulation leg model simulates knee joint motions when a leg treads and lifts up, and the simulation foot model wears a shoe to simulate ankle joint motions when the foot stands or laterally stretches and lifts up; the ground-like device is provided with a treading platform mechanism and a lifting mechanism, the treading platform mechanism is provided with a test platform, and the test platform is provided with a treading plane for simulating the simulation foot mold and bears treading force generated when the simulation foot mold performs lateral pedaling and stretching actions; the lifting mechanism controls the treading platform mechanism to move in the vertical direction so that the sole of the simulation foot mold can make close contact with the testing platform. And a control and data acquisition module. The utility model provides an anti-rollover performance test device for shoes, which can simulate landing angles, impact forces and action time between different legs and feet and the ground, and evaluate the overall anti-rollover performance difference of the shoes under different exercise intensities.
Owner:ANTA (CHINA) CO LTD

Automatic sample loading method and system for battery cell test of energy storage battery based on mechanical arm

The invention discloses an energy storage battery cell test automatic sample loading method based on a mechanical arm, and relates to the technical field of automation. The mechanical arm control unit calculates an obstacle avoidance track used for grabbing the battery cell according to the battery cell space parameters; the mechanical arm tool end moves to the position above the battery cell according to the obstacle avoidance track, and vacuum adsorption is executed to grab the battery cell; after grabbing is completed, the mechanical arm tool end conveys the battery cell to a test area, and a test ready signal is output; when the control system receives a test ready signal, testing the electric capacity and the resistance value of the battery cell; and after the test is completed, the mechanical arm tool end carries the battery cell to a corresponding storage station according to the classification of the test result, and automatic sample loading of the battery cell test is completed. The whole process of grabbing, carrying, testing and classified storage of the battery cells is automatically completed through the mechanical arm, manual intervention is reduced, and the production efficiency is remarkably improved.
Owner:深圳天溯计量检测股份有限公司

Firmware online upgrading method, embedded device, medium and product

PendingCN121879804ARapid self-healing and controllabilityFast self-healing faultsBootstrappingSoftware deploymentRandom access memoryComputer engineering
The invention provides a firmware online upgrading method, embedded equipment, a medium and a product, and relates to the technical field of intelligent terminals. The method comprises the following steps: after the embedded equipment is powered on, running a primary bootstrap program, and checking a first mark state: if the state is a state of updating a secondary bootstrap program, executing online updating of the program and resetting a system; and if the state is the default state, loading and running the secondary bootstrap program. Checking a second mark state; if the second mark state is an updating mirror image state, executing firmware mirror image online updating and resetting; and if the state is the default state, determining a target mirror image, copying the target mirror image from the nonvolatile memory to the random access memory, and skipping to run. And the equipment simultaneously monitors the running state of the target mirror image in real time, and executes successful confirmation or abnormal recovery operation according to the state. In this way, quick response of faults is achieved through running state feedback, the stability and reliability of firmware upgrading of the embedded device are effectively improved, and the risk of device paralysis in the upgrading process is reduced.
Owner:SUZHOU DEGA STORAGE TECH CO LTD

Battery box locking mechanism and vehicle

The invention provides a battery box locking mechanism and a vehicle. The battery box locking mechanism comprises a first guide part, a second guide part arranged on a battery and at least one locking part arranged on a battery bracket. And the second guide part comprises a second guide plate pivoted on the battery bracket and a first elastic piece propped against the second guide plate. The first guide part is provided with a first guide plate, the first guide plate and the second guide plate are oppositely arranged and define an inverted-splayed open groove, when the battery box moves downwards, the second guide plate pivots relative to the battery bracket, and the first elastic piece is compressed to store energy. The locking part comprises a locking seat, a first driving part connected to the locking seat, and a locking rod connected to the power output end of the first driving part. The locking seat is provided with a locking groove, the battery box is provided with a guide rod matched with the locking groove, and the first driving part drives the locking rod to abut against the guide rod so as to limit displacement of the battery box. According to the invention, the alignment accuracy during replacement of the battery box can be realized, and the clamping stagnation phenomenon is avoided.
Owner:INNER MONGOLIA SHENGCHI ENGINEERING MACHINERY CO LTD

Raw material sampling device for photoresist production

The invention discloses a raw material sampling device for photoresist production, which relates to the field of photoresist production and comprises a bottom plate and a storage box fixedly mounted on one side of the top of the bottom plate. In the sampling process, a driving motor drives a first crank through a belt transmission piece to promote a first push rod to perform circular motion so as to drive a first driving block to slide, and the mechanism ensures the swing of a swing rod, so that the reverse acting force of a second driving block is triggered, and a second crank also moves along with the second driving block; the rotating rod transmits force to the sliding block to trigger swinging of the movable rod, the action directly controls movement of the second fixed rod and the sampling piece, it is ensured that the sampling pipe can accurately cut into the sample storage box, stable and consistent sampling is achieved, sampling is conducted under the same standard and condition each time, and therefore the consistency of the sampling amount is ensured, and the sampling efficiency is improved. In addition, due to the automatic sampling process in the closed environment, the external pollution risk is reduced to the maximum extent.
Owner:LIANYUNGANG BEST CHEM NEW MATERIALS CO LTD

Cooling and cutting device for steel machining

The invention discloses a cooling and cutting device for steel machining, and particularly relates to the technical field of steel machining, the cooling and cutting device comprises a workbench, a rotating assembly is arranged at the upper end of the workbench, a limiting assembly is arranged at the upper end of the workbench, and a cutting assembly is arranged on the front side of the rotating assembly; and first limiting assemblies are symmetrically arranged on the left side and the right side of the cutting assembly, second limiting assemblies are arranged at the upper end of the workbench, and cooling assemblies are arranged at the upper ends of the limiting assemblies. According to the cooling and cutting device for steel machining, through cooperation of all the assemblies, cutting of steel bars and continuous cutting and discharging are completed, the time for frequently adjusting the cutting position in a traditional cutting mode is shortened, rapid and continuous equal-distance cutting of steel is achieved, and the cutting efficiency is improved. The overall efficiency of the production line is improved, the cutting assembly is cooled through the cooling assembly, air circulation is accelerated, and cooling of the cutting assembly is facilitated.
Owner:TANGSHAN QIAOJIE TECHNOLOGY CO LTD

Waveguide tube type radar liquid level meter

The invention discloses a waveguide tube type radar liquid level meter, and relates to the technical field of radar measurement, the waveguide tube type radar liquid level meter comprises a casing body, the top of the casing body is provided with a casing upper cover, the lower part of the casing body is coaxially provided with a flange plate, and the bottom end of the casing body is connected with a casing cavity penetrating through the inside of the flange plate; a lens is arranged in the machine shell cavity, and a conical horn is connected to the lower portion of the machine shell cavity. According to the waveguide tube type radar liquid level meter, a microwave emitter emits frequency-modulated waves, a waveguide tube guides the electromagnetic waves to be rebroadcast towards the surface of a medium, and the electromagnetic waves reflected by the surface of the medium are guided to a receiver along the same path; the receiver receives electromagnetic waves reflected by the surface of the measured medium, and the signal processor processes echo signals; based on the time-frequency relation between the transmitting signal and the receiving signal, the distance between the liquid level meter and the surface of the measured medium is determined and converted into the liquid level; according to the scheme, false echoes can be automatically restrained, and liquid level measurement is more accurate and more stable.
Owner:中仪知联(无锡)工业自动化技术有限公司

Mass information intelligent analysis method based on big data

The invention belongs to the field of information analysis and management, and relates to an intelligent mass information analysis method based on big data, which comprises the following steps of: integrating keyword tags, theme tags, time tags and space tags of newly introduced data items on that day to generate index tags, and taking the index tags as a pointing basis for storing the index tags into a target database; the data management quality of a target database is greatly improved, retrieval data of all archived data items in the target database at a preset time point after the day is collected, all high-frequency data items and all low-frequency data items in the target database are recognized, index tags and storage positions are optimized for the high-frequency data items, and the data management efficiency is improved. According to the method, the low-frequency data special library transfer processing is performed for the low-frequency data items, the oversaturation state of the low-frequency data special library is identified, and the data cleaning operation is further performed, so that the retrieval efficiency and the storage resource utilization rate of the target database are improved, the storage cost is reduced, and the data management capability is enhanced.
Owner:TIANJIN RICHSOFT ELECTRIC POWER INFORMATION TECH +1

Slag slurry filtering device for fried bean curd production

The utility model discloses a residue and slurry filtering device for fried bean curd production. The residue and slurry filtering device comprises a base, a vibration motor is fixedly installed at the top of the base, a shaking spring is fixedly installed at the position, close to the vibration motor, of the top of the base, a slurry receiving vessel is fixedly installed at the top end of the vibration motor, and a sealing piece is fixedly installed at the top of the slurry receiving vessel. After soybean milk is injected into the device, most soybean milk can flow into a soybean milk receiving vessel through a filter screen disc, the remaining soybean dregs can be intercepted on the surface of the filter screen disc, under the driving of a servo motor, a scraping plate and a first round rod rotate, a dreg pressing roller connected to the outer portion of the first round rod in a sleeving mode can rotate, the soybean dregs rich in soybean milk are rolled, and soybean milk is squeezed out; the second round rod clamped in the integrated shaft rotates, the back flushing air cylinder is started to perform back flushing, bean dregs adhering to filter holes of the filter screen disc are subjected to back flushing, then the bean dregs are shoveled through the scraper, the filter effect of the filter screen disc is prevented from being affected, the working efficiency of the device is greatly improved, and the flexibility and reliability of the device are achieved.
Owner:江苏石井磨房生物科技有限公司

Memory analysis question and answer data construction method and device, equipment and medium

The invention relates to the technical field of artificial intelligence, can be applied to business scenes such as financial science and technology and medical health, and discloses a memory analysis question and answer data construction method and device, equipment and a medium. The method comprises the steps of extracting a fact information set containing entities, relationships and values based on structured message representation, generating candidate question and answer pairs by utilizing a language model, executing multi-source verification to form a target question and answer set, performing semantic extension and question method transformation to generate a diversified question and answer set, and completing credibility screening based on a verification result to obtain a memory analysis question and answer set. And generating a memory analysis data set in combination with the user message sequence. According to the method, through multi-stage extraction, generation, verification and screening, reliability and diversity unification of question and answer content are achieved, the constructed memory analysis data set has the advantages of being consistent in context, accurate in fact, rich in expression and the like, and therefore the credibility of memory ability evaluation of the large language model is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Data query method and device, electronic equipment and storage medium

The invention provides a data query method and device, electronic equipment and a storage medium, and relates to the technical field of computers. The method comprises the steps of obtaining a query request; determining target information contained in the query request, wherein the target information comprises index information used for describing the to-be-queried index; performing problem classification on the query request to obtain a query type; and generating structured information according to the target information and the query type, and performing data query through the structured information to obtain a query result. According to the method and the device, the target information in the query request can be acquired through a standardized process, and the query request is classified, so that the structured information can be determined according to the target information and the query type, and the accuracy and the reliability of extracting the core information in the natural language problem are realized; and the accuracy and reliability of data query are improved.
Owner:BEIJING JINGDONG YUANSHENG TECH CO LTD

Force control method and system based on industrial robot practical operation and storage medium

The invention discloses a force control method and system based on industrial robot practical operation and a storage medium, and relates to the field of robot control, and the method comprises the steps: generating a motion change curve based on a displacement target and a speed limit value inputted by a user, and determining a six-dimensional position control displacement; generating a torque change curve based on a torque target and a torque limit value input by a user, calculating an external torque deviation value according to an actual contact torque value, and determining six-dimensional force control displacement based on an impedance calculation formula; determining a displacement control strategy and a force control strategy based on a motion control option selected by a user, and superposing the six-dimensional position control displacement and the six-dimensional force control displacement to generate system resultant displacement; carrying out inverse calculation solution on the system synthetic displacement to obtain a motion angle of each joint of the robot, and determining a joint pulse signal; and a joint pulse signal is sent to a servo system, so that the robot moves according to the system resultant displacement. By implementing the method, a unified model of motion control and various force control can be established, and various control modes are realized.
Owner:ZHEJIANG QIANJIANG ROBOT CO LTD

Dual-wavelength laser output system

The invention relates to the technical field of laser output, and discloses a dual-wavelength laser output system, which comprises a first laser used for generating laser of a first wavelength; the second laser is used for generating laser with a second wavelength; the edge computing node is configured at a position close to the first laser and the second laser and is responsible for performing real-time processing and analysis on the laser data of the first wavelength and the second wavelength; the distributed computing framework is used for fragmenting the laser data and distributing the fragmented laser data to a plurality of edge computing nodes for processing; and the nonlinear optical crystal is configured on the laser output path and is used for converting and synthesizing the laser of the first wavelength and the laser of the second wavelength. Multi-wavelength output is realized through double lasers and a nonlinear optical crystal, real-time data processing and fault detection are carried out by utilizing an edge computing node, efficient data processing, storage and flexible deployment are ensured through a distributed computing framework and a database, and the stability and accuracy of the system are improved.
Owner:CHENGDU Z & Z OPTOELECTRONICS TECH

Acoustic and optical multi-field detection device and method for underwater defects of hydraulic structures

The present invention discloses an acoustic and optical multi-field detection device and method for underwater defects of hydraulic structures, the method comprising: obtaining raw data, filtering the raw data respectively to obtain filtered raw data; constructing a pre-processed multi-modal data tensor based on the filtered raw data; performing spatial registration processing on the multi-modal data to obtain multi-modal data in a unified coordinate system; using an adaptive tensor decomposition method to process to obtain the real-time position coordinates and motion trajectory data of the robot; using a multi-scale feature analysis method to process to obtain the target position coordinates and target feature description; using a spatiotemporal optimization method and an uncertainty analysis method to process to obtain the final target positioning result and confidence evaluation result. The present invention improves the detection accuracy and system robustness, improves the detection accuracy, and the system positioning accuracy reaches the centimeter level, which is particularly suitable for intelligent defect detection in complex hydraulic environments.
Owner:NANJING HYDRAULIC RES INST

Autonomous configuration method and system for fan control

The embodiment of the invention provides an autonomous configuration method and system for fan control, and belongs to the technical field of wind turbine generator control. The method comprises the following steps: acquiring to-be-configured control flow information, and reading the corresponding to-be-configured information based on the format of the to-be-configured control flow information; compiling a corresponding control scheme based on the to-be-configured information to obtain a corresponding control program; executing corresponding control program configuration based on the to-be-upgraded wind turbine generator so as to configure the obtained control program to each target wind turbine generator; and controlling each target wind turbine generator based on the configured control program. According to the scheme, the complexity of control program development is reduced, low-threshold and high-efficiency control program configuration and execution are achieved, and the operation efficiency and maintenance convenience of a fan control system are improved.
Owner:BEIJING GUODIAN SIDA TECH CO LTD

A decoupled drag augmentation deorbit device

This invention relates to a decoupled drag-increasing derailment device. It includes a drag-increasing cylinder, a sleeve-type extension rod, side drag-increasing films, upper and lower planar deployment devices, and a drag-increasing launch assembly. The sleeve-type extension rod includes a central limiting rod, multiple sleeves sequentially sleeved around the limiting rod, and multiple sleeves that expand pneumatically under the action of a gas-generating propellant. The upper end of the sleeve-type extension rod is connected to the upper planar deployment device, and the lower end of the sleeve-type extension rod is connected to the lower planar deployment device. The side drag-increasing films consist of four rectangular films that expand into an X-shape, with a notch on the outer side of each rectangular film. Both the upper and lower planar deployment devices include a planar film that expands into a square shape, composed of four triangular films, with the expanded side drag-increasing films also forming an X-shape. This invention addresses the coupling problem during the expansion of the upper and lower planar deployment devices by setting notches and optimizing the configuration of the side drag-increasing films, thereby improving the reliability of the drag-increasing derailment device.
Owner:NANJING UNIV OF SCI & TECH

Ammonia Injection Method and Apparatus Based on Denitrification System

ActiveCN120679341BImprove the accuracy of ammonia sprayingachieve automationGas treatmentEmission prevention
This disclosure provides an ammonia injection method and apparatus based on a denitrification system. The method includes: acquiring current boiler parameters of a coal-fired boiler; collecting nitrogen oxide (NOx) parameters at the denitrification inlet of the denitrification system as a first NOx parameter; collecting NOx parameters at the denitrification outlet of the denitrification system as a second NOx parameter; collecting NOx parameters at the total exhaust outlet of the denitrification system as a third NOx parameter; preprocessing the current boiler parameters, the first NOx parameter, the second NOx parameter, and the third NOx parameter respectively; determining the current required ammonia quantity for the denitrification system based on at least one of the preprocessed current boiler parameters, the first NOx parameter, the second NOx parameter, and the third NOx parameter; and injecting ammonia into the denitrification system according to the current required ammonia quantity. This method ensures that the calculated ammonia injection quantity is significantly more accurate.
Owner:CHINA ENERGY LONGYUAN ENVIRONMENTAL PROTECTION CO LTD

Convenient-to-clean ultrafiltration membrane separation device

The utility model discloses a convenient-to-clean ultrafiltration membrane separation device which comprises a plastic shell, a sealing hoop is movably mounted on the plastic shell, one end of the plastic shell is connected with a closing cover through the sealing hoop, a clamping ring is clamped on the plastic shell, a magnet strip is fixedly connected on the clamping ring, and the magnet strip is connected with the sealing hoop. A handle is fixedly connected to the magnet strip, the two ends of an inner cavity of the plastic shell are connected with a bundling pipe sleeve in a clamped mode, a membrane wire set is fixedly installed at one end of the bundling pipe sleeve, and a limiting ring is connected with the inner cavity of the plastic shell in a clamped mode. When internal stains need to be removed, the handle is pulled, the magnet strip is driven to rotate around the plastic shell at the moment, in the process, due to the magnetic attraction relation, the scraper in the inner cavity of the plastic shell is attracted to rotate together, the stains are scraped off and washed away along with water flow, and impurities attached to the inner cavity of the plastic shell can be removed only by rotating for several circles. Cleaning can be achieved without shutdown, inconvenience caused by equipment disassembly is avoided, and flexibility and reliability of the device are achieved.
Owner:WUXI YMK FILTRATION EQUIP CO LTD

Waterway system of fish tank

A waterway system of a fish tank comprises a fish tank body, a water inlet waterway, a water drainage waterway and a middle waterway, the water inlet waterway comprises a water inlet valve used for opening or closing the water inlet waterway, and the water drainage waterway comprises a water drainage valve used for opening or closing the water drainage waterway; when the water inlet valve is opened, the water inlet waterway is communicated with the fish tank body through the middle waterway, and when the water drainage valve is opened, the water drainage waterway is communicated with the fish tank body through the middle waterway. According to the waterway system of the fish tank, the water inlet waterway, the water drainage waterway and the middle waterway are arranged, the water inlet waterway comprises the water inlet valve, the water drainage waterway comprises the water drainage valve, when the water inlet valve is opened, the water inlet waterway is communicated with the fish tank body through the middle waterway, and when the water drainage valve is opened, the water drainage waterway is communicated with the fish tank body through the middle waterway. The water inlet waterway and the water outlet waterway share one middle waterway, redundant pipelines can be reduced, space layout is optimized, occupied space of the waterways is further reduced, and the waterways do not need large installation space.
Owner:中山市铭龙智能电子商务服务部(个体工商户)

Power distribution network fault tracing method based on graph convolutional neural network

The invention proposes a power distribution network fault tracing method based on a graph convolutional neural network, and relates to the technical field of electric power, and the method comprises the steps: S1, constructing a power distribution network graph model, simulating a fault condition during the access of a high-proportion distributed power supply through the power distribution network graph model, so as to obtain power flow simulation data, and carrying out the data preprocessing; s2, constructing a graph convolutional neural network model containing a high-proportion distributed power supply according to the preprocessed power flow simulation data; s3, introducing the residual error into the image convolutional neural network model to construct a residual error-containing image convolutional neural network model; s4, carrying out the fault tracing of the power distribution network based on the residual image-containing convolutional neural network model; according to the invention, the node dependence problem in a complex power grid topological structure can be solved, the fault repair efficiency is improved, and the reliability and safety of power supply are realized.
Owner:STATE GRID GANSU ELECTRIC POWER RESEARCH INSTITUTE +1

A fraud identification method and system based on voice data

The application provides a fraud identification method and system based on voice data, and belongs to the technical field of voice processing, and specifically comprises the following steps: performing fraud identification processing on voice communication by using an identification processing strategy, performing update processing on the sound characteristics of fraudulent calls by using an identification processing result, determining an optimized monitoring target in a monitoring target based on the identification processing data of the voice communication, and combining the coincidence of the associated monitoring target and the associated monitoring target of different monitoring targets in the monitoring target, determining the optimized monitoring target based on the update result of the optimized monitoring target, and combining the update processing result of the sound characteristics of the fraudulent calls to determine the fraud identification method of the voice communication of the optimized monitoring target, thereby improving the accuracy of the identification processing of the fraudulent calls.
Owner:HANGZHOU DUAN TECH CO LTD

Emergency defoaming device for nuclear power plant

ActiveCN224141530UAutomatically adjust flowAutomatically adjust concentrationBatteries circuit arrangementsElectric power
The utility model discloses an emergency defoaming device for a nuclear power plant. The emergency defoaming device comprises an execution system, a control system and a power supply system, according to the emergency defoaming device for the nuclear power plant, the main flow pipeline, the branch flow pipeline and the spraying assembly are arranged, so that one solvent tank can be used for filling a plurality of defoaming pools at the same time. Meanwhile, the video monitoring module is utilized, the flow and concentration of defoaming spraying can be automatically adjusted according to the foam amount collected by the video monitoring module, high efficiency is achieved, the operation cost is reduced, the function of intelligent decision control can be achieved through the arrangement of the data processing module, and the purpose of unmanned defoaming is achieved. And a remote control module and a wireless transmission module are also arranged, so that the functions of real-time monitoring and remote operation are realized, and the cost and risk of manual intervention are reduced. In addition, a generator, a photovoltaic panel and an energy storage device are further arranged, traditional mains supply is combined with new energy power supply of wind energy and solar energy, and redundancy and reliability of power supply are achieved.
Owner:CGN ENVIRONMENTAL TECH (SHENZHEN) CO LTD +1

Cross-forward isolation data comparison system, method and device, medium and product

PendingCN121966961Areduce risk of exposureAvoid direct connection requirementsSecuring communicationData synchronizationNetwork isolation
The embodiment of the invention provides a cross-forward isolation data comparison system, method and device, a medium and a product, and relates to the field of data synchronization and verification. The system comprises a first agent which is deployed in an intranet and accesses a source end database through a database connection protocol; the second agent is deployed in an external network and establishes one-way communication connection with the first agent; the first agent is also used for transmitting the source end data of the source end database to the second agent through the forward isolation device through the one-way communication connection; and the comparison service is deployed in an external network, pulls the source end data from the interface of the second agent, and performs comparison operation on the source end data and the target end data. According to the method provided by the invention, the technical problem of data comparison in a cross-forward isolation scene is solved through the design of a double-agent architecture and a user-defined protocol, the security and reliability of data comparison are realized, and efficient and secure data comparison in a strict network isolation environment is realized.
Owner:CETC JINCANG (BEIJING) TECH CO LTD