6877 results about "Foreign matter" patented technology

The invention discloses a substation autonomous inspection and foreign matter cleaning cooperative control system and method, and belongs to the technical field of intelligent inspection and foreign matter cleaning. The system comprises a multi-modal detection module used for acquiring images, point clouds and multi-source sensing data and identifying foreign matter coordinates and visual features; the space positioning module is used for executing space registration to obtain a three-dimensional coordinate of the foreign body; the risk decision module fuses the multi-dimensional information and evaluates the foreign matter risk level; the cleaning execution module generates a cleaning path and execution parameters and issues the cleaning path and the execution parameters; and the inspection execution module plans inspection paths and actions based on the state and constraint conditions, and completes subsequent equipment inspection tasks. According to the scheme, the system realizes clear division of labor and accurate control in multiple stages of foreign matter identification, space positioning, risk assessment, cleaning instruction generation, polling after cleaning and the like, and the expansibility and the overall response efficiency of the system are improved, so that efficient, safe and stable execution of autonomous polling and foreign matter cleaning tasks of the transformer substation is guaranteed.

The invention relates to the technical field of industrial robot control, and particularly discloses an intelligent foreign matter sorting robot control system based on AI recognition, which comprises a dynamic spatial feature extraction module, a manipulator motion state coding module, a collaborative conflict detection module, a dynamic trajectory optimization module and an execution control adjustment module, constructing a three-dimensional dynamic space model through multi-sensor fusion, and extracting spatial topological features by utilizing continuous coherence analysis; manipulator motion parameters are converted into topological space representation, and a track feature coding matrix is established; detecting interaction conflicts among the manipulators in real time by adopting a multi-scale coherence analysis method, and generating graded early warning signals; a collision avoidance track is optimized based on topological constraints and a virtual rejection field technology; precise execution is achieved through inverse kinematics of the Lie group theory and self-adaptive control.

A refrigerator may include a main body forming a storeroom; a thermoelectric element including a heater and a cooler, the cooler configured to cool air inside the storeroom; a fan configured to operate to bring air from outside the main body to the heater to be heated by the heater and exhaust the heated air to outside the main body; a filter configured to filter foreign materials from the air brought from outside the main body to the heater by operation of the fan; and a controller configured to notify that the filter is clogged in response to a rotation speed of the fan being higher than a reference rotation speed.

The invention relates to the technical field of wireless charging, and provides a foreign matter detection method and system for a wireless charging system and a storage medium. The method comprises the following steps: firstly, calibrating at multiple temperature points and establishing a temperature-parameter comparison table under the condition of no foreign matters; in a no-load standby state, the inversion module sends out detection drive and collects voltage, current and temperature; calculating a real-time quality factor and resonant frequency according to sampling, obtaining a compensation reference according to a temperature look-up table, and solving the variation of the quality factor and the resonant frequency; and performing fusion judgment by adopting dual-condition locking or weighted scoring, and triggering fault protection when a foreign matter is confirmed. Due to the fact that equivalent inductance and resistance changes are caused by metal foreign matters, quality factors are remarkably reduced along with resonant frequency deviation, temperature excursion and foreign matter effects are distinguished through temperature compensation, and dual-condition locking or weighted scoring fusion judgment is combined, the interference immunity and accuracy of detection are improved, false alarms and missing alarms are remarkably reduced, and the detection accuracy is improved. The method is suitable for high-power wireless charging scenes.

Provided is a bathing assistance device for an infant, wherein the infant's resistance due to the strong impact noise generated when using a conventional bathing aid can be eliminated, armrests can operate smoothly, the skin of the infant can be prevented from being caught or compressed in a gap between the upper body and the armrests, by making a play means removable, the infant can replace the play means with his / her preferred safe play means or purchase only the bathing assistance device separately, foreign substances such as washing water and feces which flow into the inside of a tread can be quickly discharged, the bathing assistance device can be easily stored and dried in a bathroom, a falling accident in which the infant slips and falls on an upper portion of a lower body part can be prevented.

The invention belongs to the technical field of hydropower station monitoring and early warning, and particularly relates to a hydropower station intelligent inspection and fault early warning linkage method, which comprises the following steps: arranging a redundant sensor network at key equipment parts, synchronously acquiring pressure, flow, vibration and water turbidity data, establishing a flow-pressure loss reference relationship, and calculating real-time pressure-flow ratio deviation; performing spectral analysis on the vibration signals, extracting characteristic frequency band energy, performing collaborative study and judgment in combination with a turbidity change trend, and ensuring data credibility through data cross validation of main and auxiliary sensors; performing time sequence difference operation on the pressure-flow ratio deviation to obtain a change rate, fusing vibration-turbidity abnormal performance, and comprehensively diagnosing water diversion blockage or foreign matter invasion; early warning levels are divided according to the deviation and the change rate, corresponding response measures are triggered, response actions are executed according to a preset risk priority sequence, and linkage control of the whole process from state sensing, anomaly recognition, fault diagnosis to intelligent response is achieved.

The utility model discloses a foreign matter blocking device for a water intake pump opening of a water conservancy irrigation facility, and relates to the technical field of water conservancy irrigation equipment, the foreign matter blocking device comprises a support assembly composed of a top ring plate, a plurality of outer protection rods and a bottom plate, the outer protection rods are annularly distributed, and the top ring plate and the bottom plate are symmetrically fixed at the upper ends and the lower ends of the outer protection rods; a filtering and blocking assembly is arranged between the top ring plate and the outer protection rod. Large foreign matters and small impurities in water can be intercepted by arranging the support assembly and the filtering and blocking assembly, and meanwhile, water flow flowing out of the top end of the spiral guide pipe through the through hole and the spiral guide pipe can impact the blades, so that the blades deflect and drive the rotating shaft and the filtering cylinder to rotate; when the filter cartridge rotates, relative friction is generated between the filter cartridge and the brush, and the brush can clean the surface of the filter cartridge, so that impurities adhered to the filter cartridge fall off, and the condition that the surface of the filter cartridge is blocked due to excessive impurities adhered to the surface of the filter cartridge is avoided.

The invention discloses an in-situ global foreign matter checking and grabbing system for reactor internals on the lower portion of a reactor. The in-situ global foreign matter checking and grabbing system for the reactor internals on the lower portion of the reactor comprises a base device, an adjusting device and a foreign matter grabbing device. The foreign matter grabbing device is arranged on the base device through the adjusting device. The foreign matter grabbing device comprises a flexible arm assembly, a flexible arm driving assembly, a quick change assembly, at least one clamping jaw used for grabbing foreign matter and a video tracking and checking assembly used for searching the foreign matter and monitoring the grabbing condition. The flexible arm assembly is arranged on the adjusting device; the at least one clamping jaw is detachably arranged on the flexible arm assembly through the quick-change assembly; the video tracking and checking assembly is arranged on the adjusting device; according to the invention, the flexible arm assembly carries various types of clamping jaws to carry out automatic grabbing operation, so that the in-service nuclear power plant reactor internals can accurately, efficiently and safely grab and clean foreign matters in the in-situ interior of a pressure vessel in a whole region.

The invention discloses a niobium-zirconium alloy and nickel-based alloy vacuum brazing process and a part, and belongs to the technical field of vacuum brazing. According to the process, a vacuum brazing furnace is adopted for brazing, and BNi-2 brazing filler metal is used; the process comprises the following steps that S1, a welding assembly structure formed by a niobium-zirconium alloy part and a nickel-based alloy part is assembled, and BNi-2 brazing filler metal is arranged at the matching position of the welding assembly structure; s2, staged heating is carried out on the welding assembly structure under the preset vacuum degree of the vacuum brazing furnace, and the staged heating comprises a foreign matter removing heating stage, a brazing filler metal solid diffusion heating stage and a brazing filler metal melting wetting heating stage which are sequentially carried out; and S3, staged cooling is conducted on the welded assembly structure after welding is completed, the staged cooling comprises a furnace cooling stage and a gas quenching cooling stage which are conducted in sequence, according to the scheme, defect control over the niobium-zirconium alloy and nickel-based alloy welding joint can be effectively achieved, and the strength and sealing performance of the welding joint are guaranteed.

The utility model provides a guiding device and dilator for improving pressure measurement accuracy, the guiding device comprises a pressure measurement sheath, the pressure measurement sheath comprises a handle and a sheath tube, the size and shape of the sheath tube are suitable for entering a target area in a body through a body lumen, the sheath tube longitudinally extends from a near end to a far end, the sheath tube defines a first lumen suitable for entering of an external instrument, and the first lumen is communicated with the handle. A pressure measuring tube cavity longitudinally extending from the near end to the far end is formed in the tube wall of the sheath tube, a pressure measuring opening used for sensing the pressure of liquid in the body is formed in the far side of the pressure measuring tube cavity, and the dilator is arranged in the first tube cavity in a supporting and penetrating mode so that the pressure measuring sheath can enter the body conveniently. And the dilator is provided with a blocking part for limiting foreign matters from entering the pressure measuring tube cavity through the pressure measuring port.

The invention relates to an intelligent door anti-pinch method and system, an intelligent door comprises a frame body and a movable leaf capable of being opened and closed in a sliding mode in the frame body, and the method comprises the steps that the rotation angle value of a motor shaft of a motor unit is collected in real time; measuring an actual distance value between a preset measuring point on the movable leaf and a corresponding reference surface on the door frame in real time through a distance sensor; calculating a theoretical displacement value of the movable fan relative to the initial zero point based on the rotation angle value; continuously comparing the deviation value between the theoretical displacement value and the actual distance value in the displacement process of the movable fan; when the deviation value exceeds a preset safety threshold value, it is judged that the foreign matter exists; and sending a control instruction for stopping door closing or reverse operation. According to the scheme, whether foreign matter blocking exists or not is effectively recognized by comparing the deviation between the motor rotation angle and the theoretical displacement and the deviation between the sensor distance measurement and the actual distance, and non-contact obstacle clamping judgment is achieved. And the method is suitable for various forms of intelligent sliding door systems.

The tool dust removal structure comprises a positioning piece and a plurality of nozzles, the positioning piece is of an annular structure and is detachably and fixedly arranged at the end, facing a workpiece, of a main shaft and arranged on the periphery of a tool, the multiple nozzles are detachably and fixedly arranged on the positioning piece, the opening end of each nozzle extends towards the tool, and the other end of each nozzle communicates with a ventilation pipeline. The positioning piece and the nozzle are arranged at the end, where the tool is clamped, of the main shaft, foreign matter on the tool handle, matched with the main shaft, of the tool can be automatically removed before the tool is clamped, vibration or position deviation caused by the foreign matter in the rotary cutting process of the tool is avoided or reduced, and then the machining precision of the tool is improved in an auxiliary mode; foreign matters on the cutter body can be cleaned before cutting, the nozzle is communicated with the cooling pipeline, and cooling liquid can be sprayed towards the cutter body during cutting, so that heat dissipation during cutting is accelerated, sweeps are prevented from splashing towards the main shaft, the machining life of the cutter is prolonged, abrasion of the end of the main shaft is relieved, and then the machining precision is improved.

A floating type scraper structure is used for a chip cleaner and comprises two chains surrounding the chip cleaner and a plurality of scrapers evenly arranged between the two chains. A plurality of mounting seats for mounting the scrapers are arranged on the chain; limiting sleeves are arranged on the two sides of each scraper respectively, the thickness of the limiting sleeves is larger than that of the scrapers, mounting holes corresponding to the limiting sleeves are formed in the mounting bases, and the scrapers and the mounting bases are connected in a floating mode after bolts penetrate through the limiting sleeves and the mounting holes. According to the floating type scraping plate structure, the floating type scraping plate structure can adapt to foreign matter, the clamping stagnation risk is remarkably reduced, and equipment operation is more stable and reliable.

The invention relates to an energy storage converter and an energy storage system, and relates to the technical field of energy storage. The energy storage converter comprises a box body and a first airflow generating device, the box body comprises a first cavity and a second cavity, the first cavity is communicated with the outside of the box body, at least part of the structure of the first airflow generating device is arranged in the first cavity, and the first airflow generating device is used for enabling airflow to flow into the second cavity from the first cavity. The first airflow generating device is also used for enabling airflow to flow into the first cavity from the second cavity, the second cavity is not directly communicated with the outside of the box body, and the second cavity is indirectly communicated with the outside of the box body through the first cavity. Therefore, a small number of electrical parts with relatively low importance levels can be arranged in the first cavity, and a large number of electrical parts with relatively high importance levels can be arranged in the second cavity. Therefore, most electrical parts with relatively high importance levels in the energy storage converter are not easy to be contacted and damaged by foreign matters outside the box body, and the protection level of the energy storage converter is relatively high.

The utility model relates to a windproof and anti-icing convenient insulating device capable of live working, which comprises a lower-end metal accessory, an insulating body is arranged on the upper part of the lower-end metal accessory, and an upper-end fitting is arranged on the upper part of the insulating body; the upper part of the upper-end fitting is connected with a gland through a rotating shaft; the buckling part of the upper end fitting and the gland is provided with an arc-shaped groove for installing a high-voltage wire, and the arc-shaped groove is a silicone rubber cushion layer. An operation screw rod penetrating through the gland is mounted at the end, far away from the silicone rubber cushion layer, of the upper-end fitting; and a compression spring is sleeved on the operation screw rod between the upper end fitting and the gland. According to the insulator, the diameter of the upper umbrella cover is increased, so that the influence of dust, foreign matters or icing in severe weather on the insulator is avoided; lines can be maintained by live-line operation, and safe operation and maintenance of the lines are facilitated; the wire fixing structure can effectively avoid the problems of wire loosening and wire insulating layer abrasion caused by strong wind.

The invention discloses an intelligent iron removal monitoring management method and system for a conveying belt and a storage medium, and the method comprises the steps: obtaining ferromagnetic target information, generating a foreign matter monitoring report according to the ferromagnetic target information, and finally carrying out the iron removal operation according to the foreign matter monitoring report and the state information of an iron removal unit. According to the device, metal foreign matters of different types and positions are sucked and removed, an operation instruction can be sent out in time before the foreign matters reach an iron removal area, timely and accurate actuation of the iron removal unit is ensured, the iron removal efficiency and accuracy of the conveying belt are remarkably improved, the impact risk on coal flow of the conveying belt is reduced, and the service life of the conveying belt is prolonged. And the automation level and the real-time monitoring capability of the system are improved.

The invention provides a foreign matter intelligent identification and dynamic monitoring method based on remote sensing data fusion, and belongs to the field of image identification. The problem of low foreign matter recognition efficiency is solved; the method specifically comprises the following steps: acquiring and extracting fusion features of remote sensing pictures of various road foreign matters; similarity learning is carried out on the fusion features, and a high-dimensional index structure is established; acquiring a real-time remote sensing picture on the road, and judging whether foreign matters exist on the road or not; if so, marking a foreign matter; if not, not processing; acquiring a historical natural image of a target area, designing a time sequence feature analysis module, a spatial feature analysis module and a spatio-temporal joint prediction module, and outputting a natural environment prediction image of the target area at a future moment; acquiring an actual remote sensing image, and marking an abnormal region in the actual remote sensing image according to the natural environment prediction image; according to the method, the foreign matter recognition efficiency is improved through obtaining and feature extraction of the remote sensing images in the road and natural environment of the target area.

The invention provides a drilling rig for geological exploration, and relates to the technical field of drilling, the drilling rig comprises a motor mounted on a lifting frame, the extending end of the motor is connected to an inner rod, an outer wheel is coaxially arranged outside the inner rod, a plurality of fixing rods are arranged at the upper end of the outer wheel at equal intervals, and the fixing rods are connected to the inner rod. The drilling device has the most prominent advantage that the drilling device has a unique anti-jamming protection mechanism, when a sampling pipe is jammed by a hard stratum or foreign matters in the drilling process, the sampling pipe can be prevented from being blocked by the anti-jamming protection mechanism, and the sampling pipe can be prevented from being blocked by the anti-jamming protection mechanism, so that the sampling pipe can be prevented from being blocked by the anti-jamming protection mechanism. Power transmission between the motor and the sampling pipe is not rigid connection any more, controlled separation is achieved through a designed combination of a gear system and a friction disc, the motor continues to operate, but not all torque is directly transmitted to the clamped sampling pipe, part of energy is converted into surrounding motion through a rotating wheel system, and therefore the sampling pipe can be separated. And the risk of burnout of the motor due to overload is effectively avoided.

Provided is a method for inspecting a light-transmissive laminate, said method being capable of detecting foreign substances that are very small as compared with the prior art. This method for inspecting a light-transmissive laminate detects 8-50 m-sized defects in a light-transmissive laminate by performing a transmission inspection in a state in which the light-transmissive laminate is fixed in the air one by one. For example, the defect detection includes the steps of: creating an XY coordinate graph of a defect by aligning a focal point of an optical system having a predetermined magnification with a surface of a first main surface of a light-transmissive laminate and scanning the light-transmissive laminate with the optical system; a step for creating an XY coordinate map of the other defect by shifting the focal point of the optical system inward in the thickness direction from the surface of the first main surface of the light-transmissive laminate by a predetermined distance and scanning the light-transmissive laminate with the optical system; and integrating the created XY coordinate maps of the defects.

The invention relates to the field of foreign matter cleaning, in particular to a multi-scene cleaning tool which comprises a processing assembly, a cleaning assembly and a control assembly, and the processing assembly comprises a shell, a driving part arranged in the shell and an execution part arranged at one end of the driving part; the operation assembly comprises a handheld rod detachably connected with the processing assembly and a camera part detachably arranged on the outer wall of the handheld rod; the executing part is controlled and driven by the driving part, the executing part comprises but is not limited to one of a clamping part or a spraying part, and the whole cleaning tool is modularized, so that a worker can quickly replace the whole cleaning tool according to operation requirements; for example, an execution part is selected to be replaced with a clamping part with a clamping function or a spraying part with a pesticide spraying function, meanwhile, a camera shooting part is further arranged on a handheld rod, remote visual operation of workers is supported, and by arranging a connecting rod, the angle of a processing assembly can be adjusted when a complex working condition is met, so that the working efficiency is improved. The robot can cross the terrain or obstacles conveniently, so that foreign matter can be clamped and cleaned, and multifunctional expansion is supported.

The invention discloses a railway foreign matter intrusion detection method and system based on video analysis and an AI algorithm, and mainly relates to the technical field of railway intelligent operation and maintenance. Comprising the following steps: collecting video streams around a track, determining the position of a protection area and recording coordinate information; obtaining a background frame and a detection frame, and generating a target mask of the suspected foreign matter; calculating a minimum enclosing rectangular frame of the target and filtering a target frame outside the protection area; setting a background frame updating period, updating according to the period until no target exists in the protection area, and counting again; inputting the suspected foreign matter target frame into a target tracker, and matching the suspected foreign matter target frame with an existing track; when the track reaches a set tracking period threshold value, the track is regarded as an effective track and is output; and determining the specific category of the foreign matter, and pushing corresponding alarm information. The method has the advantages that the problem that traditional target detection is poor in robustness is solved, the safety of the railway environment is effectively guaranteed, and accident potential is reduced.

The anti-blocking submersible pump comprises a pump body, the pump body comprises a driving part, a pump cavity part and a liquid inlet part, the pump cavity part is located between the driving part and the liquid inlet part, the pump cavity part is provided with an impeller, the driving part is provided with a driving rod, the liquid inlet part is provided with a liquid inlet cylinder and a cutting cylinder, the liquid inlet cylinder is arranged on the outer wall of the cutting cylinder in a sleeving mode, and the cutting cylinder is provided with an impeller. The cutting cylinder abuts against the inner wall of the liquid inlet cylinder, the cutting cylinder is connected with the driving rod, the liquid inlet cylinder is provided with a liquid inlet hole, the cutting cylinder is provided with a cutting hole, and the cutting hole is used for cutting aquatic plants. The cutting barrel is arranged, when strip-shaped foreign matter such as aquatic plants penetrates through the liquid inlet hole and the cutting hole to enter the liquid inlet part, the hole wall of the cutting hole of the rotating cutting barrel and the hole wall of the liquid inlet hole have the cutting effect similar to shearing through scissors, and therefore the situation that the aquatic plants enter and wind the impeller is reduced, and the situation that the liquid inlet barrel is blocked is reduced; the working stability of the pump body is improved.

The invention relates to the technical field of hydraulic engineering control, and discloses a hoist opening degree stroke data processing method and system.The hoist opening degree stroke data processing method comprises the steps that in the valve closing process, two sets of real-time data of motor loads and valve displacement are continuously obtained; when continuous lifting exceeding background noise appears in the motor load data for the first time, marking the moment as an initial contact point; starting from the initial contact point, recording two groups of real-time data of motor load and valve displacement at a preset sampling frequency, and calculating a resistance change rate = delta load / delta displacement; the resistance change rate and a preset collision threshold value are compared to control opening and closing, motor load and valve displacement data are monitored in real time, and the resistance change rate is calculated, so that in the valve closing process, the contact point of the valve and a water seal or a foreign matter is accurately recognized, flexible compression and rigid collision are effectively distinguished according to the change trend of the resistance change rate, and the safety of the valve is improved. Misjudgment is avoided, and the safety and reliability of operation of the hoist are improved.

The invention relates to the technical field of extrusion casting molds, and discloses an automobile clutch shell extrusion casting mold which comprises a casting table base, a supporting column is fixedly connected to the top of the casting table base, a top hydraulic machine box is fixedly connected to the top of the supporting column, and a first hydraulic telescopic column is movably connected into the top hydraulic machine box in a sleeved mode. A mold base is arranged at the bottom of the first hydraulic telescopic column, the mold base is movably sleeved with an extrusion cooling table, a cold air conveying channel is formed in the bottom of the mold base, a first fan blade is movably sleeved with the mold base, and a first motor is fixedly connected to the bottom of the first fan blade; low temperature generated by cooling liquid is transmitted to the mold base to cool the mold base, the front ventilation pipeline arranged in the concave water tank in a sleeving mode converts internal airflow into low-temperature airflow through cooling liquid, and the water tank handrail is installed outside the concave water tank to prevent foreign matter from entering the concave water tank to affect the cooling effect of the front ventilation pipeline.

To provide a foreign matter separator and a foreign matter separation method that allow separation of metal wires being foreign matters contained in dust collected by a dust collector.SOLUTION: Dust collected by a dust collector 1 is mechanically sieved with a sieve 5, and the sieved dust is guided to a vertical pipe 7. Then, a gaseous matter is flown in from a lower part of the vertical pipe 7 to generate upward current inside the vertical pipe 7. Further, dust which has been separated according to flotation caused by the upward current is guided to a dust storage tank 8, and metal wires in the sieved dust are sedimented to be separated.SELECTED DRAWING: Figure 1

The invention discloses a nuclear power plant secondary side cleanliness evaluation and radiation shielding method. The method comprises the following steps that S1, whole secondary circuit system equipment of a steam generator is washed; s2, full-coverage cleanliness inspection is carried out in the range from a filter screen of the electric main water feeding pump system to the secondary side of the steam generator, and meanwhile, if foreign matter is found, a cleaning tool is used for picking up the foreign matter; s3, evaluating the cleanliness condition, and if the cleanliness is qualified, ending; if the cleanliness is not qualified, returning to the step S1; s4, if the foreign matter falls off after the steam generator runs, stopping the equipment, and filling the secondary side of the steam generator with water to a preset position for reducing the radiation dose; and S5, picking up foreign matters by using a cleaning tool. Full-coverage cleanliness inspection is carried out in the range from the filter screen of the electric main feed pump system to the secondary side of the steam generator, effective verification of the secondary loop foreign matter flushing effect and radiation shielding when necessary are achieved, and foreign matter remaining on the secondary side of the steam generator is avoided.