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55results about How to "Reduce fit" patented technology

Combined pre-charging circuit of energy storage high-voltage box and control method

The invention relates to a combined pre-charging circuit of an energy storage high-voltage box and a control method, the combined pre-charging circuit of the energy storage high-voltage box is used for establishing electric connection between a battery cluster and an energy storage system, the positive electrode of the battery cluster is connected with the positive electrode of the energy storage system through a positive electrode path, and the negative electrode of the battery cluster is connected with the negative electrode of the energy storage system through a negative electrode path. The combined pre-charging circuit comprises a positive fuse, a negative fuse, a shunt, a pre-charging resistor, a combined pre-charging module and a battery cluster control module; the combined pre-charging module comprises a pre-charging switch group and a main switch group, the pre-charging switch group comprises a first positive pole switch piece and a first negative pole switch piece which act synchronously, and the main switch group comprises a second positive pole switch piece and a second negative pole switch piece which act synchronously; the positive fuse is connected to the positive path; and the negative fuse and the shunt are connected in series to the negative path. The combined pre-charging circuit of the energy storage high-voltage box can greatly reduce the usage amount of electrical equipment, and can reduce the fault rate of the energy storage high-voltage box.
Owner:浙江海得智慧能源有限公司

High-precision positioning auxiliary mounting equipment and method for glass curtain wall

The invention provides glass curtain wall high-precision positioning auxiliary installation equipment and method.The glass curtain wall high-precision positioning auxiliary installation equipment comprises a base arranged on a hanging basket, a position adjusting assembly arranged at the bottom of the base, a plurality of suction cups used for fixing an external glass plate, two assembly frames connected with the suction cups correspondingly, and a control frame connected with the two assembly frames; the invention discloses high-precision positioning auxiliary mounting equipment for a glass curtain wall, which comprises a control frame, two assembling frames arranged on the control frame, a clamping assembly arranged on the control frame, two hook rings symmetrically fixed on the control frame, adjusting assemblies arranged on the control frame and the two assembling frames, and a connecting plate hinged on the control frame. The glass plate fixed by the suction cups can be reinforced, the safety of the glass plate during installation is effectively improved, under the control of the position adjusting assembly, the glass plate can be conveniently controlled to be stably and accurately moved and positioned, and the overall installation quality of the glass curtain wall is guaranteed.
Owner:CHINA FIRST METALLURGICAL GROUP

Novel reciprocating saw

The invention relates to the technical field of electric compound saws, in particular to a novel reciprocating saw which comprises a reciprocating main body, a limiting device and a control device, a fixing main body is fixedly connected to the rear portion of the reciprocating main body, a battery main body is fixedly connected to the bottom of the fixing main body, and a grip main body is fixedly connected to the side, away from the reciprocating main body, of the fixing main body; the reciprocating main body is fixedly connected with the handle main body, the side, close to the reciprocating main body, of the handle main body is fixedly connected with a control device, and the end, away from the fixed main body, of the reciprocating main body is internally provided with a saw blade main body. The reciprocating main body can be started through the control device, the reciprocating main body controls the saw blade main body to saw a sawed object, and in the sawing process, the position between the saw blade main body and the sawed object is limited through the limiting device, so that sawing is more stable, and the sawing efficiency is improved.
Owner:ZHEJIANG TONGDA ELECTRICAL APPLIANCE

Question and answer processing method, device, computer equipment and readable storage medium

The present invention provides a question-answering processing method, apparatus, computer equipment and readable storage medium. The question-answering processing method comprises: obtaining a question part and a content part of a target document, wherein the content part comprises at least two text blocks; constructing an initial input vector according to the question part and the content part; inputting the initial input vector into a preset question-answering machine model, wherein the question-answering machine model comprises a pre-training model layer, an attention model layer and a final output layer; and determining whether the content part includes an answer corresponding to the question part and the position of the answer in the content part according to question-answering result information. Through the present invention, the accuracy of question-answering processing can be improved.
Owner:QI AN XIN TECHNOLOGY GROUP INC +1

Self-adaptive cervical vertebra pillow

The utility model relates to the technical field of bedding articles, and discloses a self-adaptive cervical vertebra pillow which comprises a pillow body provided with a bottom surface, a contact surface and a connecting part, a neck air bag arranged on the contact surface, a neck groove arranged on the surface of the neck air bag, and a pillow cover arranged on the neck air bag, the head air bag is arranged on the contact surface, and a head groove is formed in the surface of the head air bag; the inflation assembly is arranged on the bottom face, connected with the neck air bag and the head air bag and used for inflating and deflating the neck air bag and the head air bag so as to conduct self-adaptive adjustment. The utility model discloses a self-adaptive cervical vertebra pillow, and aims to provide the self-adaptive cervical vertebra pillow which aims at automatically adjusting the height of the pillow according to the body type, the sleeping habit and the cervical vertebra condition of a user so as to provide optimal sleeping support and ensure that the cervical vertebra keeps natural physiological curvature in the sleeping process.
Owner:BEIJING YUJINGHUA CULTURAL DEVELOPMENT CO LTD

Training data equalization processing method and device, equipment, medium and product

The invention discloses a training data balance processing method and device, equipment, a medium and a product. The invention relates to the technical field of data processing. The method comprises the following steps: when a user in a user set is associated with an object in an object set, generating associated data according to the associated user and object, and adding the associated data into an associated data set; acquiring other users of the same category as the target user corresponding to the to-be-supplemented data of the associated data set; obtaining a target object associated with the target user in the associated data set; according to each target object, determining candidate objects of the target user in other objects associated with the other users in the associated data set; and generating associated data according to the target user and each candidate object, and adding the associated data into the associated data set. The embodiment of the invention can balance the training data of the model.
Owner:CHINA CONSTRUCTION BANK +1

Slush machine

The application discloses a sand ice machine, and relates to the technical field of refrigeration equipment, wherein the sand ice machine comprises a base and a material cylinder, one side of the base is provided with a mounting portion, the material cylinder is provided with an opening on one side, and the opening is detachably mounted on the mounting portion; an evaporator is arranged in the material cylinder; the evaporator comprises an inner cylinder and an outer cylinder which are nested, and a first end cover arranged at one end of the outer cylinder which faces the base; the first end cover comprises an annular sealing portion and an extension portion arranged on the outer periphery of the annular sealing portion; the extension portion is protruded on the side of the outer cylinder; the annular sealing portion is connected with the inner cylinder and the outer cylinder respectively; the extension portion is arranged on one side of the mounting portion which faces the material cylinder, and is mounted on the mounting portion. The technical scheme can improve the manufacturing efficiency of the sand ice machine and facilitate user cleaning.
Owner:SHENZHEN INTELLIROCKS TECH CO LTD +1

Hand-held magnetotherapeutic electronic pulse apparatus

ActiveCN224584925Ureduce fitEasy to hold with both handsPhysical medicine and rehabilitationWhole body
The utility model discloses a hand -held formula's magnetothermal electron pulse physiotherapy instrument belongs to physiotherapy instrument technical field, including upper frame, middle frame, bottom frame and base, the periphery both sides symmetry of upper frame are fixed with handle frame, the handle frame is wrapped with handle rubber, be provided with the control knob of rotation installation with upper frame between handle frame, the bottom surface of bottom frame is provided with physiotherapy mechanism, through design a kind of integrated physiotherapy mechanism, two groups of electrode disc outside are connected into circuit board through electrode column and realize pulse physiotherapy, the center of inner bottom is fixed with permanent magnetic paste and realizes magnetotherapy, the periphery of permanent magnetic paste is wound with heating coil and realizes heat therapy, three kinds of physiotherapy components are unified package, unified access PCB control board control, is controlled by the external single control knob adjustment, integration into a whole, reduce various wire harness and accessory cooperation, more adapt to with whole body meridian do whole body movement and treat, patients can self -help operation and use.
Owner:SHENZHEN NEW VITALITY HEALTH TECHNOLOGY CO LTD

Intelligent temperature-adjusting multi-scene protective wrist guard

The utility model provides an intelligent temperature-adjusting multi-scene protective wrist guard which comprises a wrist guard body, a contraction cloth bag is arranged on one side of the wrist guard body, a cavity is formed in the contraction cloth bag, an air bag is arranged in the cavity, a spacing layer is arranged in the cavity, a heating wire is wound in the wrist guard body, and the heating wire extends to the cavity to be isolated from the air bag through the spacing layer. A child wrist is arranged at one end of the wrister body, a mother wrist is arranged at the other end of the wrister body, a functional area is arranged on the outer side of the mother wrist, a storage table is arranged at one end of the functional area, a controller used for adjusting the temperature of a heating wire is detachably arranged on the storage table, when the wrister is tightly attached to the wrist of a user, the air bag is inflated, and the air bag provides powerful support for the wrist; the muscles are heated, so that the pressure of the muscles in the movement process is relieved, and a better protection effect is achieved.
Owner:YANGZHOU SENSPORT HEALTHCARE SUPPLIES CO LTD

A drill jig for processing steam balance hole of steam turbine rotor

The application belongs to the technical field of steam turbine rotor processing, in particular to a drill jig for steam turbine rotor steam balance hole processing, which comprises a drill jig body, a bushing, a quick-change drill sleeve, a cylindrical pin and a set screw; the drill jig body is provided with a rectangular groove in the thickness direction; both sides of the bottom of the drill jig body are provided with through holes; the bushing is fixedly connected to the inside of one side of the through hole; the inside of the bushing is provided with the quick-change drill sleeve. The drill jig body with a "door" type structure is matched with the rectangular groove, which can quickly realize the preliminary positioning of the drill jig at the edge of the impeller, the radially limiting of the outer circle of the impeller is matched with the symmetrical distribution of the cylindrical pin, the center of the quick-change drill sleeve is accurately aligned with the positioning line, and the hole position deviation problem caused by the positioning deviation in the traditional processing is avoided; at the same time, the set screw at the bottom is stably pressed against the surface of the impeller spoke through the threaded connection, so that the drill jig can remain stable during the drilling process and prevent displacement caused by vibration.
Owner:HARBIN HUAQIANG POWER ELECTRIC STATION EQUIP MFR

Device for reducing liquid leakage of needle head of hydro-optical syringe

The utility model provides a device for reducing liquid leakage of a needle head of a hydro-optical syringe, which relates to the field of medical cosmetology and comprises a needle sleeve, a connecting tube is mounted at the bottom of the needle sleeve, a sealing gasket is arranged at the top of the needle sleeve, an inner container is arranged on the inner bottom wall of the needle sleeve, a plurality of needle tubes are mounted at the top of the inner container, and a sealing gasket is arranged at the bottom of the needle sleeve. A sealing ring plate is mounted on the inner wall of the needle sleeve, and a plurality of needle seats are mounted at the top of the sealing ring plate; the sealing gasket is arranged to tightly suck the skin of the face of a patient, no gap exists between the needle sleeve and the skin of the face, and therefore the needle head of the hydro-optical syringe is good in sealing effect, the liquid leakage phenomenon is reduced, the needle head, the cavity, the valve sleeve, the valve element, the spring, the groove, the first through hole and the second through hole are arranged, hydro-optical liquid flows in a one-way mode, and the sealing effect is good. And the needle head is provided with eight stress surfaces and points, so that the puncture pain is greatly reduced, the needle head is attached to the skin, and the leakage of water, light and liquid is avoided.
Owner:SHANGHAI HUIBANGZHI BEAUTY & MEDICAL BEAUTY CLINIC CO LTD

A backpack with novel cushioned shoulder straps

ActiveCN224612131Urelieve sorenessReduce discomfort such as strangulation
This utility model relates to the field of backpack technology, specifically a backpack with a novel cushioned shoulder strap, which solves the technical problem of poor cushioning effect of traditional backpack shoulder straps. It includes a backpack body with shoulder straps connected to it. A cushioning strap is installed on the shoulder strap, and the cushioning strap has a hollow filling cavity inside. The outer surface of the cushioning strap has protrusions. When the backpack is being carried, the cushioning strap on the shoulder strap provides cushioning between itself and the user's shoulder. The cushioning strap is foldable, with a fold in the middle. The portion of the cushioning strap above the fold is a connecting part, which is fixedly connected to the shoulder strap. The portion of the cushioning strap below the fold is a free part. The cushioning strap can be folded at the fold position, with the free part folded inwards and upwards. The free part overlaps with the connecting part, forming a double-layer structure to increase the thickness of the cushioning strap and improve its cushioning capacity.
Owner:BAODING IBESA BAG MFG CO LTD

System and method for evaluating generalization ability of AI large model, and electronic equipment

The invention relates to the technical field of large model generalization ability evaluation, and particularly discloses an AI large model generalization ability evaluation system and method and an electronic device, and the system is provided with a field generalization ability value evaluation module, a task generalization ability value evaluation module and a generalization ability optimization module. Firstly, a field generalization ability value of the large model and a task generalization ability value of the large model are evaluated and are compared with a preset field generalization ability reference value and a task generalization ability reference value respectively, so that the generalization ability of the large model is optimized, and the large model can keep good generalization performance; the method can better adapt to changes in an actual application environment, improves the overall prediction accuracy of the large model, enhances the robustness of the large model, enables the large model to be more stable and reliable in actual application, and reduces wrong evaluation caused by incomplete data analysis.
Owner:ZHONGRUI COMM PLANNING & DESIGN

Portrayal feature data protection method and system based on multilayer space mapping

The invention discloses a method and a system for protecting portrait feature data of multilayer space mapping, which are used for scenes such as user portraits / article portraits and the like. According to the method, a three-layer mapping architecture of a scalar input layer (S)-a middle random layer (R)-a target output layer (C) is adopted, and multi-stage irreversible transformation processing is carried out on original scalar data. The method comprises the following steps: firstly, mapping a scalar into an intermediate vector by utilizing a one-way function of cryptography security and combining a secret key and an offset; secondly, distance features of the intermediate vector are extracted, direction features are discarded, and the distance features are converted into two-dimensional space coordinates through a deterministic mapping algorithm; according to the method, the irreversibility of reversely deducing the scalar quantity from the coordinates is ensured by erasing the angle information of the middle layer; the space isolation in different business scenes is realized by introducing the offset; according to the method, a deterministic rejection sampling algorithm based on HMAC is preferably adopted, the problem of center aggregation existing in a traditional mapping method is solved, uniform distribution of coordinates in a set area is achieved, sensitive feature value scalar quantities of all dimensions in portrait feature vectors are mapped into two-dimensional coordinate points, and the two-dimensional coordinate points are aggregated to form an object portrait feature matrix; the method is used for cross-system analysis, clustering, similar retrieval and visual display, and meanwhile plaintext feature value leakage can be avoided.
Owner:ZHUHAI ZHENGBEI INVESTMENT CO LTD

A composite material cylinder segment co-curing molding and demolding device

This utility model belongs to the field of mold design technology and discloses a composite material cylindrical segment co-curing molding and demolding device. The composite material cylindrical segment co-curing molding and demolding device includes a first mold, a second mold, and a fixing component. The first mold includes a large end and a small end, with the inner diameter gradually decreasing from the large end to the small end. The outer surface of the first mold has a receiving groove and a positioning hole. The receiving groove is used to receive a hat-shaped stringer, and the side of the receiving groove near the small end of the mold is connected to the positioning hole. The second mold can be fixedly installed in the positioning hole. The second mold includes a mounting flange and a forming groove. The mounting flange can fit against the inner surface of the first mold, and the forming groove is used to form the end of the hat-shaped stringer. The fixing component is configured to fix the first mold and the second mold. This utility model can solve the problem of interference between the end of the hat-shaped stringer and the inner wall of the first mold during demolding, thus improving demolding efficiency.
Owner:SHANGHAI AIRCRAFT MFG

Winding device for cold-rolled steel strip machining

The utility model discloses a coiling device for cold-rolled steel strip processing, relates to the related field of cold-rolled steel strip processing, and aims to solve the problems that in the prior art, a sliding baffle is fixed by a bolt, after steel strips with different sizes are coiled, manual readjustment is needed, the intermediate downtime of the coiling device is long, and the coiling efficiency is high. And the overall winding efficiency is influenced. The winding drum is installed on one side of the installation support and is of a hollow structure, the winding drum is connected with the installation support through a rotating sleeve, the rotating sleeve is connected with the installation support through a bearing, sliding open grooves are formed in the front end and the rear end of the outer surface of the winding drum, and the sliding open grooves communicate with the interior of the winding drum. One end of the interior of the furling cylinder is rotatably connected with an internal threaded rod through a bearing, the other end of the internal threaded rod is connected with a driving shaft, a sliding baffle disc is arranged on the furling cylinder, and the sliding baffle disc comprises a baffle disc main body, a connecting block and a middle sliding disc.
Owner:SUZHOU HUASHENG-PONTE COPPER PLATING STEEL-STRIP CO LTD

A pressure-inducing chamber structure for a sensor for suppressing water hammer pressure peak

The present invention discloses a pressure-inducing chamber structure for a sensor for suppressing a water hammer pressure peak, comprising: a sealing ring, a labyrinth plug, a sealing gasket and a side cover; one end of the labyrinth plug is shaped with a sensitive element, and the other end is pressed by the side cover, and the labyrinth plug and the side cover are sealed by a sealing gasket, and the labyrinth plug and the sensitive element are sealed by a sealing ring, so that a pressure-inducing chamber is formed between the sealing ring, the labyrinth plug and the sensitive element; wherein a labyrinth-shaped flow channel is provided on the end surface of the end where the labyrinth plug and the sealing gasket are butted against each other, and the labyrinth-shaped flow channel is connected with the pressure-inducing chamber through a drainage hole provided in the labyrinth plug.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

A test system and method for water stability of granite crushed stone asphalt concrete

ActiveCN121324629Breduce dosagereduce fit
This invention discloses a water stability testing system and method for granite crushed stone asphalt concrete, relating to the field of water stability testing technology. The granite crushed stone asphalt concrete water stability testing system includes a molding module, a negative pressure immersion module, and a pressure application module. The molding module includes a molding mold; the negative pressure immersion module includes a housing, a negative pressure air pump, and a water storage tank. A first bottom mold can selectively be fitted and connected to a second bottom mold or the water storage tank, respectively used for molding or wetting the test sample. In this invention, demolding of the circumferential surface of the test sample is no longer performed in the early stage; instead, the sealing state between the test sample and the side mold is maintained until the negative pressure immersion process. On the one hand, it eliminates the need to rebuild the sealing structure for the circumferential surface of the test sample, reducing operational steps and improving operational efficiency. On the other hand, the reduced adhesion between the wetted test sample and the side mold reduces the difficulty of subsequent mold opening.
Owner:SHANDONG LUQIAO CONSTR

LCD (Liquid Crystal Display) glass surface mounting device

The invention discloses an LCD glass pasting device which comprises a rack, a supporting mechanism and a pressing mechanism, the supporting mechanism is arranged on the rack, and the supporting mechanism is used for bearing a polaroid and a glass sheet; the pressing mechanism comprises a support, a lifting assembly, a plurality of pressing heads and an adjusting assembly, the support is slidably connected to the rack in the height direction of the rack, the fixed end of the lifting assembly is connected to the rack, the movable end of the lifting assembly is connected to the support, the pressing heads are arranged on the support, and the fixed end of the adjusting assembly is connected to the support. The beneficial effects of the invention are that through the design of the plurality of pressure heads and the independent adjusting assembly, the pressure in the binding surface can be regulated and controlled in a partitioned manner, the scratch of the glass sheet and the damage of the polaroid caused by overlarge local pressure are reduced, the quality of the polaroid is improved, and the quality of the polaroid is improved. And the possibility of fitting gaps and bubbles caused by too small local pressure is reduced.
Owner:HUBEI JUNTENG TUODA OPTOELECTRONICS CO LTD

Battery storage structure based on quick opening and closing bin door

The invention belongs to the technical field of battery storage bin doors, and particularly relates to a battery storage structure based on a fast opening and closing bin door, which comprises a bin door, a first knob, a rotating disc, a second knob, a sealing head, a rubber pad and a bin body, the first rotary knob is rotationally connected into the first limiting hole, a second limiting hole is formed in the first rotary knob, the first rotary knob is sleeved with the rotating disc, the rotating disc is fixedly connected with the first rotary knob, a plurality of limiting protrusions are arranged in the circumferential direction of the rotating disc, and the limiting protrusions correspond to the first limiting grooves one to one. According to the device, the problems that an existing battery storage bin door can be rapidly opened and closed, protection is reliable, compensation can be conducted by screwing the second rotary knob, protection is achieved, and whether the bin door is loosened or not is accurately judged by conducting high-precision prediction on the loosening degree of the bin door are solved.
Owner:SHANGHAI GENITE CONTROL TECH

A quick-install door lock and a washing machine having the door lock

The present invention provides a quick-install door lock and a washing machine with the door lock, and belongs to the technical field of door locks, wherein the quick-install door lock comprises: a lock hole body and a locking member, wherein the locking member is rotatably arranged on a first side wall of the lock hole body, and the locking member has a lock head, and the lock head is suitable for extending into the root of the extension portion of the first side wall; the quick-install door lock of the present invention can be operated with one hand when the mounting hole of a door panel is clamped by the lock head of the locking member, that is, the door lock is inserted into the mounting hole of the door panel while the locking member is rotated by the thumb, thereby freeing the other hand to fix the door panel, so as to improve the operating efficiency.
Owner:WENZHOU TIANJIAN ELECTRIC APPLIANCE

A quantitative device for the research and development of additives for broiler fermented feed

The present invention discloses a dosing device for additives in the research and development of broiler fermented feed, which relates to the field of feed processing technology, and aims to solve the technical problem that the existing dosing device is connected to different additive storage cylinders, which makes it difficult for the dosing device to process large-particle feed immediately, thereby affecting the quality of the feed and additive mixing, and includes four feeding pipes. The present invention designs a first processing component, a second processing component and a connecting component, so that the device can not only ensure that the additives at the top of the feeding pipe can enter the feeding pipe smoothly, but also can crush and grind the large particles and agglomerated additives entering the first conduit and the second conduit in batches, which can reduce the participation of manpower and the coordination of additional equipment on the one hand, and reduce the cost of producing feed, and on the other hand, the crushed additives can accelerate the reaction with the feed, and can improve the mixing effect of the feed and the additives.
Owner:SHANDONG DINGLI AGRICULTURE & ANIMAL HUSBANDRY TECHNOLOGY CO LTD +1

High-precision punch forming die for bearing cover plate

The utility model relates to the technical field of dies, and discloses a bearing cover plate high-precision punch forming die which comprises a base, the bottom of the base is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a pneumatic cylinder, the driving end of the pneumatic cylinder is fixedly connected with a second sliding plate, the inner wall of the connecting plate is provided with a plurality of sliding grooves, and the sliding grooves are fixedly connected with the second sliding plate. A plurality of linkage plates are rotatably connected to the two sides of the second sliding plate, rolling wheels are slidably connected to the two sides of the linkage plates, a first sliding plate is slidably connected to the outer portion of one rolling wheel, a third supporting column is fixedly connected to the top of the first sliding plate, and a second top plate is fixedly connected to the other end of the third supporting column; a plurality of auxiliary columns are fixedly connected to the top of the base. According to the utility model, during first ejection, the first ejection plate is driven by the second sliding plate to reduce the fitting degree of the first ejection plate and the template, and then the second ejection plate is driven by the first sliding plate to carry out second ejection, so that a stamping part can be stably and completely pushed out to facilitate the development of subsequent processes.
Owner:ANHUI TECNO MASCH TECH CO LTD

Mechanical sealing type ceramic slurry pump

The utility model relates to the technical field of slurry pump equipment, in particular to a mechanical sealing type ceramic slurry pump which comprises a bracket assembly, a ceramic pump body assembly, a ceramic impeller, a plurality of bolts and a plurality of screws. The outer surface of the main shaft is rotationally connected to the interior of the bracket assembly and the interior of the ceramic pump body assembly, one end of the main shaft is fixedly connected to one side of the ceramic impeller, and the ceramic impeller is located in the ceramic pump body assembly. The sealing structure is provided with the mechanical seal, the joint plate and the sealing shaft sleeve, connection of a pressure reducing cover is reduced, excessive matching is reduced, and therefore matching difficulty is reduced, matching precision is improved, and the matching precision in the whole connecting process can meet the requirement of the mechanical seal. And meanwhile, the mechanical seal is mounted at the front end of the joint plate and detachably connected through bolts, so that the mechanical seal is convenient to replace, and the maintenance speed of the porcelain slurry pump is increased.
Owner:SHANDONG ZHANGGU REFRACTORIES RES NEW MATERIAL TECH CO LTD

Classification method and system for motor imagery electroencephalogram signals and storage medium

The invention discloses a motor imagery electroencephalogram signal classification method and system and a storage medium, and belongs to the technical field of electroencephalogram signal analysis. The method comprises the following steps of: performing MODWT decomposition on a time domain signal of each channel in an electroencephalogram signal, splicing the electroencephalogram signal and an MODWT decomposition layer signal, and inputting a motor imagery signal classification network model after weighting in a depth dimension and a channel dimension; after the model is trained, the electroencephalogram signals can be identified and classified, and a motor imagery classification result is obtained. According to the method, the lightweight network model is adopted, the overfitting problem caused by insufficient training samples is reduced, and good motor imagery signal classification performance can be achieved.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

5G antenna convenient to install

The utility model discloses a 5G antenna convenient to install, and relates to the technical field of 5G antenna installation. The antenna mounting structure comprises a mounting rod and an antenna, one side of the antenna is provided with a mounting mechanism, one side of a connecting plate is fixedly connected with a supporting plate, one side of the supporting plate is provided with a supporting frame, the supporting frame is fixedly connected with the mounting rod through a mounting hoop, a thrust bearing is arranged between the supporting frame and the supporting plate, and the supporting plate is fixedly connected with the supporting frame. According to the utility model, through the thrust bearing and the pin, the support plate, the support frame and the antenna can be in a relatively static and fixed state, the installation and cooperation process of the support plate and the support frame is reduced, the installation and cooperation of the support plate and the support frame are facilitated, and the installation and cooperation of the support plate and the support frame are facilitated. According to the mechanism, the number of parts needed in the installation process and operation steps are reduced, the installation hoop can penetrate through the supporting plate and the supporting frame at the same time and is fixed through the fastening nut, and the installation process is simplified.
Owner:SHENZHEN HONGLIANXING ELECTRONICS CO LTD

An automatic positioning and identification system and method for tunnel segment stacking

This invention discloses an automatic positioning and identification system and method for tunnel segment stacking, including a human-computer interaction system, an information processing module, a database, a three-dimensional coordinate system, a pressure sensor, a handheld PDA, a card-type UHF chip, a split-type UHF reader / writer, a warning device, a guidance device, and a display device. This invention has low environmental requirements, requires minimal operator intervention, and the system can automatically position and identify segments. It uses an UHF reader / writer on a fixture to automatically identify the card-type UHF chip on the segment, and then uses the pressure sensor to calculate the dynamic storage and retrieval status of the segment in the three-dimensional coordinate system. It can obtain the precise location of segments within a unit stacking yard by inputting the segment number and type; it has statistical functions, such as information on the quantity, specifications, and type of segments in the stacking yard; it has report generation functions, capable of generating daily, monthly, and annual reports; it has historical data query capabilities, such as segment delivery time and quantity information; and it can provide basic data for platform use.
Owner:CCCC THIRD NAVIGATION (NANTONG) OFFSHORE ENG CO LTD +1

Pressure sore prevention equipment for old people lying nursing for severe illness

The pressure sore prevention equipment comprises a pressure reduction pad and a mattress plate, two layers of sealing pads are fixedly installed in the pressure reduction pad in an embedded mode, the pressure reduction pad forms three spaces through the two layers of sealing pads, and a plurality of supporting sleeves are installed in the pressure reduction pad side by side at equal intervals. When the supporting strength to the body of a patient needs to be improved, the supporting strength is increased by increasing the air supply amount to the upper-layer space, when the supporting strength needs to be reduced, upper-layer air is pressed into an air channel through an air through pipe by means of self-weight extrusion of the patient and the bed surface, and at the moment, most of the air is reversely exhausted through an air pump machine which is in indirect through connection with a butt joint. When the supporting strength is reduced, the air amount of the upper-layer space is reduced, the body is attached to the middle-layer water layer under the pressure of the weight of the patient, and meanwhile the attaching degree of the body and the middle-layer water layer is adjusted by adjusting the supporting amount of the upper-layer air; furthermore, the supporting strength and the fitting degree to the body of the patient can be adjusted according to actual requirements.
Owner:PEOPLES HOSPITAL OF INNER MONGOLIA AUTONOMOUS REGION