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103results about How to "Troubleshooting" patented technology

Automobile data analysis method and system based on intelligent diagnostic instrument

The invention relates to the field of vehicle data analysis, in particular to an automobile data analysis method and system based on an intelligent diagnostic instrument. The method comprises the following steps: acquiring vehicle multi-modal monitoring data based on an intelligent diagnostic instrument; operation power change calculation is conducted on the vehicle multi-mode monitoring data, time sequence state feature mining is conducted, and vehicle time sequence state features are obtained; carrying out multi-frequency noise reduction optimization on the vehicle multi-modal monitoring data, and carrying out normalized periodic evolution mining so as to generate normalized vibration periodic evolution characteristics; potential feature association deep mining is carried out on the vehicle time sequence state features and the normalized vibration period evolution features, then association graph modeling is carried out, and a vehicle multi-modal feature knowledge graph is constructed; and abnormal parameter deviation calculation and fault positioning traceability are carried out on the real-time operation parameters of the vehicle based on the vehicle multi-modal feature knowledge graph, so that a potential abnormal fault positioning point is obtained. According to the invention, efficient and accurate vehicle fault risk prediction analysis is realized.
Owner:SHENZHEN FOXWELL TECHNOLOGY CO LTD

Numerical control lathe for hardware machining

The invention relates to the technical field of numerical control lathes, in particular to a numerical control lathe for hardware machining, which comprises a lathe body, the lathe body specifically comprises a spindle box, a drilling assembly is arranged in the spindle box, the drilling assembly comprises a tool rest and a drilling tool, the tool rest is used for mounting and fixing the drilling tool, and the drilling tool is used for drilling hardware; a limiting groove is formed in the outer wall of the drilling tool, an adjusting assembly is rotationally connected into the limiting groove, and a plurality of chip breaking blades are arranged on the outer wall of the adjusting assembly and used for cutting off long chips. A cavity is formed in the tool rest, and an auxiliary assembly is installed in the cavity and used for being in auxiliary fit with the chip breaking blade. When hardware is drilled, a mounting plate is retracted into a limiting groove under the elastic action of a connecting spring, the mounting plate drives a chip breaking blade to rotate into the hardware along with a drilling tool, long chips are cut off by the chip breaking blade while the hardware is drilled, and the winding problem caused by too long chips is avoided.
Owner:XINGHUO MASCH TOOL (HEBEI) CO LTD

High-performance environment-friendly UV adhesive for battery and preparation method thereof

The invention discloses a high-performance environment-friendly UV (ultraviolet) adhesive for batteries and a preparation method thereof, and the UV adhesive is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate prepolymer, 30-70 parts of first acrylate monomer, 1-10 parts of photoinitiator, 5-15 parts of thixotropic agent and 0.5-5 parts of other auxiliaries, the acrylate prepolymer is prepared from the following raw materials: compound polyol, isocyanate and a second acrylate monomer; the compound polyol comprises a flexible polyol and a hard polyol which are compounded according to a molar ratio of 1: (1-5). According to the high-performance environment-friendly UV adhesive for the battery, the viscosity is smaller than 5000 cps, Tg is larger than or equal to 70 DEG C, the elongation at break is larger than or equal to 550%, the shear strength is larger than or equal to 5 MPa, and the resistivity is larger than or equal to 109 omega.m. The UV adhesive disclosed by the invention has the characteristics of low viscosity, high thixotropy, convenience in sizing, short curing time, good flexibility of cured adhesive, high bonding strength and excellent heat resistance and insulating property.
Owner:STEADYCHEM (SHANGHAI) CO LTD

A residential package delivery device suitable for drone logistics

PendingCN122501663AImplement automatic notification functionTimely reminder to collect
This application relates to a residential parcel transportation device applicable to drone logistics. This application falls within the field of low-altitude economic technology. The technical solution adopted in this application includes: a rooftop transfer system, installed on the rooftop of a residential building, for receiving parcels dropped by drones and completing parcel alignment, horizontal transfer, and temporary storage scheduling; an exterior vertical transportation system, fixedly installed on the building's exterior facade and located directly below the rooftop transfer system, for vertically transferring parcels output from the rooftop transfer system to the corresponding floors; and a user-end receiving system, installed near the windows of users on each floor of the residence, for receiving vertically transferred parcels and real-time monitoring of the support occupancy status; the horizontal transfer end of the rooftop transfer system and the initial bearing position of the exterior vertical transportation system are at the same horizontal height and on the same straight line perpendicular to the building's exterior wall, achieving seamless connection between horizontal and vertical transfer.
Owner:POWERCHINA HUADONG ENG CORP LTD

Laundry care device and method of manufacturing the same

ActiveCN115698415BEnsure reflectivityensure visibility
Owner:SAMSUNG ELECTRONICS CO LTD

A subway operation failure emergency linkage interactive method, device, equipment and medium

The present invention relates to a subway operation fault emergency linkage interaction method, device, equipment and medium, the method comprising: S1, obtaining a subway operation emergency linkage subject; S2, obtaining subway operation fault operation and maintenance information; S3, obtaining two directly affected objects in the subway operation fault, namely, passengers P in the car and subway equipment D, and mapping the passengers P in the car and subway equipment D to an emergency service demand area Sq, decomposing the required service functions according to each independent demand and collecting them into an emergency service demand pool Sp; S4, functionally decomposing the emergency linkage subject, obtaining each service set so that can provide services, obtaining the weight Won of each service demanded by passengers in the car, subway equipment and linkage objects, and the weight Wo of the service provider. Compared with the prior art, the present invention has the advantages of being able to effectively realize cross-professional and cross-departmental collaborative communication, while ensuring the independence within the profession and within the department.
Owner:CASCO SIGNAL LTD

A jig structure for a circuit board

The utility model provides a kind of tool structure for circuit board, comprising: upper pressing plate, maintaining seat, base, circuit board, multiple magnetic components, multiple elastic components and multiple pins;The side surface of upper pressing plate is recessed to form limiting groove, and upper pressing plate is connected with maintaining seat by magnetic force to limit circuit board in limiting groove;The surface of maintaining seat is protruded to form first positioning column for positioning circuit board, and the both sides of maintaining seat are respectively equipped with magnetic component;Base is connected with maintaining seat by insertion, and base surface is equipped with multiple insertion holes matched with pin, and each insertion hole is respectively movably equipped with a set of elastic component;One end of each pin is abutted with one of elastic component, and the other end of each pin is fixedly arranged in circuit board.The utility model is connected by magnetic attraction between upper pressing plate and maintaining seat, so that circuit board can be stably welded during main rod, thereby avoiding product failure problem caused by soldering overflow due to main rod skew.
Owner:MOBILE ANTENNA TECH SHENZHEN +5

Device and method for storing and adding chlorine-containing disinfectant for water treatment

The invention discloses a storing and adding device and method based on a chlorine-containing disinfectant for water treatment, and relates to the technical field of water treatment chlorine supplementing devices.The storing and adding device comprises a cabinet, multiple groups of agent boxes and an extraction structure are arranged at the bottom of an inner cavity of the cabinet, and the extraction structure sequentially extracts sodium hypochlorite agents from the multiple groups of agent boxes and injects the sodium hypochlorite agents into a tap water pipe; a switching valve assembly is further installed in the machine cabinet so as to be connected with the multiple sets of agent boxes respectively, agents can be extracted from the different agent boxes in sequence, a traditional single heavy and large agent box is changed into a plurality of small agent boxes, the agent supplementing mode that the agent boxes are carried out is additionally achieved, various field requirements are met, and the machine cabinet can be used indoors and outdoors. And the plurality of medicament boxes are arranged in a rotatable form by utilizing the weighing adjusting base, so that the medicament boxes inside and outside can be conveniently taken out forwards in a narrow equipment space, and even if the medicament box is positioned inside, the medicament box can be moved to the front side to be taken out only by simple rotating operation.
Owner:NANJING YUANDONGLI WATER TREATMENT TECH CO LTD

Mounting assembly and heat pump unit thereof

The utility model relates to the technical field of heat pump units, and discloses a mounting assembly and a heat pump unit thereof, the mounting assembly comprises a mounting outer frame, the bottom of the mounting outer frame is fixedly connected with a bottom plate, a buffer structure and a heat dissipation structure are arranged in the mounting outer frame, the buffer structure comprises a bearing box, a buffer plate and a sliding column, and the buffer plate is fixedly connected with the sliding column. The buffer plate and the sliding column are movably connected with the same bearing box, the bearing box is slidably connected with the mounting outer frame, the heat dissipation structure comprises a fixing frame and heat dissipation fan blades, the fixing frame is fixedly connected with the mounting outer frame, and the heat dissipation fan blades are rotatably connected with the fixing frame; the heat dissipation strip holes, the heat dissipation through holes and the bottom plate heat dissipation openings provide heat dissipation for the bottom of the unit, and the heat dissipation fan blades provide heat dissipation for the top of the unit, so that the heat pump unit can be subjected to multi-directional heat dissipation through cooperation, the fault problem caused by too high heat during operation of the unit is avoided, frequent replacement of equipment is avoided, and the service life of the heat pump unit is prolonged. And the operation efficiency of the unit is ensured.
Owner:SHANGHAI ANCHENLIXING ENERGY SAVING ENG TECH CO LTD

A locking mechanism and a locking method

ActiveCN110842551BGuaranteed to be relatively fixedeffective locking mechanismAssembly machinesPositioning apparatusStructural engineeringMechanical engineering
The present invention belongs to the technical field of rapid maintenance, and discloses a locking mechanism and a locking method. The locking mechanism is used to lock a second component sleeved outside a first component onto the first component, and comprises: a first through hole, radially arranged on the second component; a jacket, sleeved outside the second component, the jacket is provided with a second through hole corresponding to and connected to the first through hole, the second through hole is provided with an internal thread; a stud, the stud is provided with an external thread, and cooperates with the internal thread so that the end of the stud passes through the first through hole and abuts against the first component. The locking mechanism and the locking method provided by the present invention can ensure that the first component and the second component can remain relatively fixed during operation, and when the locking structure fails, the first component and the second component do not need to be disassembled, and the equipment failure caused by the failure of the locking structure can be eliminated by simply replacing or repairing the jacket and the stud.
Owner:GUANGZHOU HUANYA COSMETIC SCI & TECH CO LTD

Wire feeding device for cable processing

The utility model relates to cable processing technical field, and disclose a kind of wire feeding equipment for cable processing, including ring body, setting in the opposite end of support;Slide bar, symmetrically and slidingly connected in ring body;Brush plate, symmetrically and fixedly connected in the one end of slide bar located inside ring body;Spring, fixedly connected with the opposite surface of brush plate in ring body inner wall, spring is sleeved in the outside of slide bar;Scraping plate, fixedly connected with the right side wall of ring body.Cable is past ring body, brush plate is adhered on cable surface by spring, and brush plate is cleaned when cable passes and the dust and impurity on surface, and then cable cleaned by brush plate is past scraping plate, and scraping plate is scraped more stubborn stain on cable surface, and cleaning effect is better.Cable cleaned is transported to subsequent equipment.Working personnel can replace brush plate and scraping plate periodically after long time use of brush plate and scraping plate, and cleaning capacity is reduced.
Owner:ORIENTAL PLASTIC CABLE CO LTD

Quenching tower of gas furnace

The quench tower of the gas furnace comprises a first quench tower, the side wall of the first quench tower is fixedly connected with a second quench tower, and the surface of the first quench tower is fixedly connected with a gas inlet pipeline; a gas outlet pipeline is fixedly connected to the surface of the second quench tower, a first flushing water bag is mounted on the gas inlet pipeline, and a first flushing water nozzle is fixedly mounted between the first flushing water bag and the first quench tower; a second flushing water bag is mounted on the gas outlet pipeline; and a second flushing water nozzle is fixedly mounted between the second flushing water bag and the second quench tower. A first cooling water bag is mounted on the outer side wall of the first quench tower, and a first cooling water nozzle is fixedly connected between the first cooling water bag and the first quench tower; a second cooling water bag is mounted on the outer side wall of the second quench tower, and a second cooling water nozzle is fixedly connected between the second cooling water bag and the second quench tower. The device has the advantages of being low in processing and manufacturing cost, energy-saving, environment-friendly and capable of cleaning pulverized coal tar cakes on line.
Owner:XINJIANG XINHAODA MINING CO LTD

Electrolytic flocculation type dissolved air flotation sewage treatment all-in-one machine

The utility model provides a kind of electrolytic flocculation type dissolved air flotation sewage treatment all-in-one machine, it is related to adhesive production technical field, including shell, the outer surface left side bottom end of shell is inserted with sewage tank, the outer surface front section right side of shell is equipped with metal door, the outer surface middle part of metal door is equipped with observation port, the inside fixed mounting of sewage tank is equipped with mounting plate, AI edge calculation box, high-frequency pulse direct current power supply and cyclone dissolved air cavity are integrated into upper and lower layered structure, utilize upper baffle to separate electrical area and processing area, while using the integrated stamping process that sewage tank and cyclone dissolved air cavity share side wall, make equipment volume compared with traditional electrolysis-air flotation split device greatly reduce, venturi pneumatic refluxer is integrated with dissolved air cavity bottom, by 0.3-0.6MPa pressure difference self-driving operation, replace traditional electric reflux pump, further compress equipment size, effectively solve the problem of equipment volume in prior art too large.
Owner:QINGDAO SHICHUANG ENVIRONMENTAL ENG CO LTD

Submersible height difference slide way driving type lifting massage mechanism

PendingCN121943069AThe lifting function is realized smoothlyavoid collisionChiropractic devicesSofasPhysical medicine and rehabilitationMassage
The invention relates to a submerged height difference slide way driving type lifting massage mechanism, which comprises a sofa body, a backpack and a massage assembly, the backpack is arranged on the backrest part of the sofa body, the submerged height difference slide way driving type lifting massage mechanism is characterized in that the backpack is provided with a massage area and a concave area, the massage area is located at the upper end part of the concave area, and the massage area protrudes out of the concave area; a driving assembly is arranged on the backrest part of the sofa body, the driving assembly drives the massage assembly to slide up and down on the backrest part, so that the massage assembly is exposed out of the massage area of the knapsack or hidden in the concave area of the knapsack, and the driving assembly is hidden on the rear side of the knapsack. By the adoption of the technical scheme, the submerged height difference slide way driving type lifting massage mechanism is comfortable in sitting feeling, comfortable in massage, capable of walking on a backpack during massage and hidden when not used for massage.
Owner:ZHEJIANG HAOZHONGHAO HEALTH PROD

Insertion plate structure of nodular cast iron pipe core machine feed opening gate valve

The utility model discloses a flashboard structure of a nodular cast iron pipe core machine feed opening gate valve, which belongs to the technical field of nodular cast iron pipe core machines, and comprises a sand adding valve and a flashboard valve box body, the sand adding valve is arranged at the bottom of the flashboard valve box body, the sand adding valve comprises a flashboard and a cylinder, the flashboard is connected with the cylinder, the cylinder is arranged on the outer side of the flashboard valve box body, and the flashboard is connected with the flashboard. Sliding rails are symmetrically arranged on the two sides of the bottom of the gate valve box and clamped with the gate plate, a discharging hole is formed in the gate plate, the distance between the discharging hole and the outer edge of the gate plate is larger than the diameter of the discharging hole, a discharging channel is arranged in the gate valve box, and the diameter of an outlet in the lower end of the discharging channel is the same as that of the discharging hole. The flashboard structure drives the flashboard to move leftwards and rightwards by pushing and pulling the air cylinder leftwards and rightwards, so that the problems of sand accumulation and blanking port blockage are solved, the work of cleaning the sand adding valve by workers is thoroughly eliminated, various faults of the sand adding valve are thoroughly eliminated, the working efficiency of the core making machine is improved, and a large amount of working time loss is saved.
Owner:SAINT GOBAIN PIPELINES CO LTD +1

Heat pump water heater control method, device and system and water heater

The invention discloses a heat pump water heater control method, device and system and a water heater, and belongs to the field of heat pump water heaters. The control method is applied to the static heating type heat pump water heater, and when the heat pump water heater operates stably, the outdoor environment temperature and the condensation temperature are obtained; based on the operation mode of the heat-pump water heater, the theoretical water temperature of the upper portion of a water tank of the heat-pump water heater is determined according to the outdoor environment temperature and the condensation temperature, and finally the heat-pump water heater is controlled based on the theoretical water temperature. According to the scheme, a sensor does not need to be arranged on the upper portion of the water tank of the heat pump water heater, the temperature can be obtained only according to the outdoor environment temperature and the condensation temperature, in the production design stage, the assembly workload of the water tank temperature sensing bulb can be reduced, production and product material cost is reduced, production time is shortened, and production efficiency is improved; and various fault problems caused by the influence of the water tank temperature sensing bulb assembly can be avoided after sale.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

A fault detection alarm system for breeding farms

The present invention relates to a farm fault detection alarm system, comprising: an alarm device inside the house, which is used to be installed inside the breeding house of the breeding farm, and has an inside controller, an electric energy sensor, an inside alarm and a first contactor, wherein the inside controller is connected to the electric energy sensor, the coil of the first contactor and the inside alarm, and is used to obtain the electric energy information of the electric equipment in the house through the electric energy sensor, control the inside alarm to send an alarm signal and control the contact of the first contactor to generate an action signal; an alarm device outside the house, which is used to be installed outside the breeding house of the breeding farm, and has an outside controller and an outside alarm, wherein the outside controller is connected to the contact of the first contactor and the outside alarm, and is used to obtain the action signal of the contact of the first contactor and control the outside alarm to send an alarm signal. The technical solution provided by the present invention can improve the reliability of the fault alarm of the breeding farm.
Owner:MUYUAN FOOD GROUP CO LTD

Side protection assembly suitable for heavy truck chassis

The utility model discloses a side protection assembly suitable for a heavy truck chassis, and belongs to the technical field of heavy truck chassis components. The protective device comprises a protective plate with a frame structure, the connecting supports are fixedly connected to the two ends of the protective plate, and cantilever sections extend from the top ends of the connecting supports in the direction of the frame; the base can be fixedly connected with a frame and is of a U-shaped groove structure; wherein the tail end of the cantilever section is inserted into the base and is detachably and fixedly connected with the base through a connecting plate, and the utility model has the beneficial effects that the structure is reliable, the failure rate is low, the processing and the manufacturing are convenient, the product consistency can be ensured, and the generality is good.
Owner:DAYUN AUTOMOBILE CO LTD

Cleaning head and cleaning equipment

PendingCN121795809ASolve the problem of easy downward sagging and deflectionavoid motion interferenceCarpet cleanersFloor cleanersMechanical engineeringSheet structure
The invention provides a cleaning head and cleaning equipment, and relates to the technical field of cleaning equipment. The cleaning head comprises a first shell, a second shell and a scraping strip assembly, the second shell wraps part of the first shell and defines a containing cavity, and a rolling brush groove protruding towards the containing cavity is formed in the side, away from the second shell, of the first shell to contain the cleaning unit; the scraping strip assembly comprises a transmission mechanism and a scraping strip body which are connected, the scraping strip body is partially located outside the containing cavity and used for scraping the operation surface, and the transmission mechanism is used for driving the scraping strip body to be switched between the extending state and the retracting state. At least the part, attached to the inner wall of the rolling brush groove, of the transmission mechanism is of an elastic sheet structure, and the elastic sheet structure enables the scraping strip body to be attached to the inner wall of the rolling brush groove in two states through elastic deformation of the elastic sheet structure, so that the space utilization rate of the containing cavity is increased, miniaturization of the cleaning head is facilitated, and the attaching precision and switching smoothness of the scraping strip are improved; meanwhile, part abrasion is reduced, and the service life and reliability of cleaning equipment are prolonged.
Owner:MOK INTELLIGENT TECHNOLOGY (SUZHOU) CO LTD

A rapid cooling device for a heat treatment furnace

ActiveCN224415756UElimination temperatureEliminate coolingThermodynamicsHeat conservation
The utility model discloses a kind of quick cooling device for heat treatment furnace, specifically related to cooling device field, including rack, fixedly connected on the protection shell of rack, cover plate movably connected on the protection shell, fixedly connected in the heat preservation inner shell of protection shell, heater and fixedly connected in the air supply shell of heat preservation inner shell bottom, exhaust pipe is opened in cover plate, the bottom of heat preservation inner shell is opened with several circumferential arrangement's air jet, air supply pipeline is opened in air supply shell, air supply assembly is installed in air supply shell, flow guide assembly is installed on rack. The utility model is combined with the structure of bottom air supply and flow guide vane, simultaneously using flow guide assembly to drive flow guide vane to reciprocating swing synchronously, concentrated airflow is scattered and redistributed, eliminates the temperature gradient and cooling dead zone of each area in furnace, to significantly improve the quality problem such as deformation, cracking caused by uneven cooling, substantially improve product pass rate.
Owner:MAANSHAN LINGBO TECH CO LTD

Drying apparatus and control method thereof

This invention relates to the field of household appliance technology, and discloses a drying device and its control method. The drying device includes a main structure, a baffle structure, and a control module. The main structure has a clothing handling chamber and a drying air duct. The clothing handling chamber has an air inlet and an air outlet. The air inlet end of the drying air duct is connected to the air outlet, and the air outlet end of the drying air duct is connected to the air inlet. The baffle structure is located at the drying air duct or the air inlet and is used to regulate the airflow through the drying air duct and the clothing handling chamber. The control module can adjust the opening of the baffle structure according to the drying program, adjust the ventilation volume of the drying air duct, reduce heat loss, improve the contact efficiency between hot air and clothing, shorten the drying time, and reduce energy consumption. The control module can determine the blockage of the drying air duct based on the relationship between the opening of the baffle structure and the airflow through the drying air duct, avoiding the execution of the drying program when the drying air duct is blocked, thereby avoiding affecting drying efficiency and increasing energy consumption.
Owner:TIANJIN HAIER WASHING ELECTRICAL APPLIANCE CO LTD

Intelligent defrosting controller for refrigerator

The utility model discloses an intelligent defrosting controller for a refrigerator, which comprises a PCB (Printed Circuit Board) provided with a plurality of ADC (Analog to Digital Converter) interface modules; the display module is connected with the PCB circuit board; the storage battery is integrated on the PCB and is electrically connected with the timing chip; the signal input end of the compressor control unit is electrically connected with the control chip, and the signal output end of the compressor control unit is electrically connected with the compressor; the input end of the signal control unit is connected with the signal output end of the control chip, and the output end of the signal control unit is connected with the temperature control unit; and the signal output end of the sensor unit is electrically connected with the input end of the control chip. The control chip can receive environmental parameters from the sensor unit and accurately control operation of the temperature control unit through PID control according to the parameters, and intelligent management of the refrigerator environment is achieved.
Owner:JIAXING GUXIANG REFRIGERATION EQUIP CO LTD

Noise-reduction self-lubricating gear motor

The invention discloses a noise reduction self-lubricating type gear motor which comprises an arranged motor box, a driving part is arranged in the motor box, and the output end of the driving part is connected with a rotating shaft through a speed changing part. A cooling assembly is installed in the motor box, the cooling assembly comprises a water storage tank installed in the motor box, the water storage tank conveys liquid to a speed changing part through a conveying cylinder, and the speed changing part conveys the liquid into the water storage tank through a processing box; the output end of the driving piece is connected with a forward and reverse screw, and the outer side of the forward and reverse screw is in threaded connection with a moving plate. According to the noise-reduction self-lubricating gear motor, liquid is conveyed into the speed change part, it is ensured that the motor always keeps a stable working state in the long-time operation process, the fault problem caused by overheating is avoided, the noise problem caused by driving a fan to rotate is reduced, the problem that personnel are disturbed due to too large noise is effectively avoided, and the service life of the motor is prolonged. And the applicability of the motor box is improved.
Owner:RUIAN BEILI MICRO MOTOR CO LTD

A coupler device applied to gas-electric fast insertion wireless communication and power supply

The utility model relates to the field of gas electricity fast insertion, specifically discloses a kind of coupler device applied to gas electricity fast insertion wireless communication and power supply, including coupling module one and coupling module two, coupling module one and coupling module two can be mutually assembled, and wireless communication and wireless power supply are carried out between coupling module one and coupling module two assembled together;Avoid the circuit failure problem caused by the problems such as pin corrosion, pollution, distortion when pin connection;Realized quick connection, mute, beautiful, stable and reliable connection mode, with 60GHz V band transceiver. Gigabit ethernet short-range non-contact connection. Full duplex, horizontal transmission, control automatic negotiation. Used in pairs, no contact therefore no wear and tear and maintenance.
Owner:ZHENGZHOU LINGHANG ROBOT CO LTD

Vehicle abnormal noise warning methods, devices, vehicles and storage media

This application provides a method, device, vehicle, and medium for alerting abnormal vehicle noises. The method, applied in the field of vehicles, includes: acquiring sound information generated by the vehicle, vehicle operation information, and vehicle driving information; determining the vehicle's operating scenario based on the vehicle operation information and driving information; comparing the sound information with normal sound information stored in a first database based on the operating scenario to generate a detection result; and outputting corresponding alert information according to the detection result and a corresponding alert mode. This method can alert users to vehicle noises based on their needs, enabling users to promptly detect vehicle malfunctions and ensuring vehicle driving safety.
Owner:GREAT WALL MOTOR CO LTD

New energy vehicle drive motor bearing fault diagnosis method based on data analysis

The invention relates to the technical field of fault diagnosis, and specifically discloses a new energy vehicle drive motor bearing fault diagnosis method based on data analysis, comprising the following steps: step S1: selecting a vehicle sample, setting different speed values, obtaining a bearing wear index, and obtaining a lossless cycle; step S2: within the lossless cycle, obtaining the speed and sound signal of the motor in real time when it is running, and numbering the sampling points to obtain a lossless signal set; step S3: when the motor is not within the lossless cycle, obtaining the current speed and sound signal, if the current speed does not belong to the preset speed set, selecting a specific element according to a constraint condition, and obtaining a corresponding simulated sound signal; step S4: comparing the current sound signal with the simulated sound signal to determine whether the bearing has a fault; effectively improving the fault diagnosis accuracy of the new energy vehicle drive motor bearing, reducing the fault missed detection rate, and thus improving the safety performance of new energy vehicles.
Owner:CHENGDU IND VOCATIONAL TECHN COLLEGE

Flexible direct current fault processing method, device and equipment for maintaining power transmission, storage medium and computer program product

The invention relates to a flexible direct-current fault processing method and device for maintaining power transmission, equipment, a storage medium and a computer program product, and the method comprises the steps: controlling the voltage of a power transmission end and the voltage of a power receiving end in a direct-current control and protection system to be first preset voltages when the direct-current control and protection system detects a fault of a line; and controlling the current of the power transmitting end and the current of the power receiving end to be first preset current so as to eliminate the fault, and after a preset time period after the fault is eliminated, controlling the voltage of the power transmitting end to recover to the original initial voltage of the power transmitting end and controlling the voltage of the power receiving end to recover to the original initial voltage of the power receiving end, and stopping controlling the current of the power transmitting end and the current of the power receiving end. According to the method, when the line has the grounding fault, the resistance value of the grounding line is large, so that the current flowing through the branch where the line fault point is located can be zero by setting the current and the voltage of the power transmitting end and the power receiving end to be the same value, and the line fault point is forced to extinguish arc to eliminate the fault.
Owner:MAINTENANCE & TEST CENTRE CSG EHV POWER TRANSMISSION CO

Foreign matter cleaning device for air duct of brake disc

The utility model discloses a brake disc air duct foreign matter cleaning device, and relates to the technical field of brake disc cleaning. According to the brake disc air duct foreign matter cleaning device, through reasonable design and cooperative work of all the mechanisms, the machine table is provided with the cleaning cavity and the discharging channel, the cleaning cavity provides a brake disc cleaning space, a liquid inlet of the discharging channel communicates with the cleaning cavity, and waste liquid generated by cleaning can be discharged in time; a clamping piece of the clamping mechanism is arranged in the cleaning cavity, the brake disc can be stably clamped, and it is guaranteed that the position of the brake disc is stable in the cleaning process; the liquid outlet end face of a liquid spraying assembly of the cleaning mechanism faces the clamping piece, cleaning liquid is sprayed to the brake disc, and foreign matter such as scrap iron and oil mist in an air duct is effectively washed away; the collecting mechanism is connected into a liquid outlet of the discharging channel, and waste liquid and impurities generated during cleaning can be collected in a centralized mode. The foreign matters in the air duct of the brake disc are efficiently cleaned, the problem of equipment failure caused by residual impurities is avoided, the personnel load is remarkably reduced, the starting rate of a production line is effectively improved, and then the production efficiency is improved.
Owner:DONGFENG HONDA AUTOMOBILE PARTS CO LTD

Automatic flow distributor for grain drying tower

The utility model relates to drying tower grain feeding technical field discloses a kind of grain drying tower grain feeding automatic flow divider, including cabinet, the outside fixed connection of cabinet has in-out material assembly, the top inner wall of cabinet is equipped with collecting hopper by thread fastener, the inner wall of cabinet is equipped with pin shaft by rolling bearing, the top fixed connection of pin shaft has distributing plate, the top both sides of distributing plate are equipped with nylon plate by thread fastener, and the in-out material assembly includes grain feeding chute, the bottom fixed connection of grain feeding chute is in the top of cabinet, the bottom left end fixed connection of cabinet has left grain outlet chute, the bottom right end fixed connection of cabinet has right grain outlet chute. In the utility model, through self-adapting adjustment mechanism, the automatic balance of grain flow is realized, effectively ensure the uniform distribution of grain, distributing plate is automatically adjusted according to grain column flow condition, and the hidden danger of uneven flow is eliminated.
Owner:SHANDONG UNIA AGRI MASCH CO LTD