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55results about How to "Reduce intermediate links" patented technology

A control method for opening degree analog quantity setting mode of a hydroelectric generator set monitoring system

A control method for the analog input / output setting mode of a hydro-generator monitoring system includes a newly added program for identifying input / output pulses. The control logic is as follows: ① If an input pulse command of 1 is detected, the analog input / output setting value = analog input / output setting value + fixed step size; otherwise, the analog input / output setting value remains unchanged. ② If an input pulse command of 1 is detected, the analog input / output setting value = analog input / output setting value - fixed step size; otherwise, the analog input / output setting value remains unchanged. A new analog input / output setting value initialization program is also included, employing the following control logic: When other control modes are switched to analog input / output setting mode, the current input / output setting feedback value sent by the governor is assigned to the analog input / output setting value as the initial value. This invention can improve the guide vane opening and active power regulation speed, enhance equipment stability and reliability, reduce intermediate links and fault points, lower equipment failure rate, and ensure the safe, stable, and high-quality operation of the generator unit and the power grid.
Owner:CHINA YANGTZE POWER

Cotton seed coating device

The utility model relates to a cotton seed coating device. The device comprises a barrel, a plurality of stirring mechanisms and a drying mechanism. Wherein the plurality of stirring mechanisms are arranged in the cylinder body in a staggered manner along the height direction of the cylinder body, and in every two adjacent stirring mechanisms, the feeding position of the stirring mechanism positioned at the lower part is opposite to the discharging hole of the stirring mechanism positioned at the upper part; and the feeding hole of the drying mechanism is opposite to the discharging hole of the stirring mechanism positioned at the lowest part. According to the multi-layer seed coating machine, the plurality of stirring mechanisms are matched, so that seeds are fully mixed with a plurality of coating agents, and multi-layer coating is realized. Meanwhile, the problems that in the prior art, a single-layer coating is not uniform, whole-process growth regulation cannot be met, and caking and falling are likely to happen are solved by means of opposite arrangement of a feeding port and a discharging port of the adjacent stirring mechanisms and timely drying of the drying mechanism.
Owner:CROP RES INST OF GANSU ACAD OF AGRI SCI

Preparation method of isostatic pressing graphite with superfine structure

The invention provides a preparation method of isostatic pressing graphite with a superfine structure, belongs to the technical field of preparation of isostatic pressing graphite, and aims to solve the technical problem that the product reliability is influenced due to low dispersion efficiency and easy agglomeration of graphene in the existing one-step mixing. The method comprises the following steps: step S1, aggregate preparation; s2, gradient mixing: adding graphene accounting for 1-3% of the total weight of the basic aggregate into the basic aggregate, mixing by adopting a gradient mixing method, premixing the basic aggregate accounting for 40-60% of the total weight with all graphene to prepare a master batch, and finally mixing the master batch with the residual basic aggregate to obtain a composite reinforced aggregate; step S3, mixing and kneading; step S4, powder pressing; step S5, isostatic pressing molding; step S6, roasting; and step S7, graphitizing. According to the preparation method, a gradient mixing method is adopted, so that the enhancement effect of the graphene can be fully exerted, and the problems that the graphene is easy to agglomerate and is difficult to uniformly disperse in the micron powder are effectively solved through a step-by-step dilution mechanism.
Owner:SICHUAN RUIDE DINGXIN NEW MATERIALS CO LTD

Wind power plant

The utility model relates to wind power generation technical field discloses wind power generation device, including support subassembly, wind wheel subassembly and power generation subassembly, wind wheel subassembly includes main shaft and impeller, and the main shaft fixed mounting is in support subassembly, and the impeller rotatablely installs on the main shaft, power generation subassembly includes first power generation unit and second power generation unit, and the stator of first power generation unit and second power generation unit all fixed mounting is in main shaft, and the outer rotor of first power generation unit and second power generation unit all are connected with the impeller fixedly, the utility model under the same wind force condition, first power generation unit and second power generation unit can work simultaneously, and the mechanical energy of impeller capture is more efficient, more fully converts into electric energy, effectively increases the overall power generation, improves the wind energy utilization efficiency and power generation efficiency, solves when the outside wind speed is at the low level, and the overall power generation of generator is insufficient.
Owner:YUANGONG ENERGY TECH GRP CO LTD +1

Taro forming and processing equipment

The utility model discloses taro forming and processing equipment, which relates to the technical field of taro processing and comprises a table plate, a pressing plate arranged on the top surface of the table plate, a forming block fixedly connected to the bottom surface of the pressing plate, a square hole formed in the middle of the top surface of the table plate, a forming net fixedly connected to the top of the square hole, and a cutting knife rotationally arranged in the square hole. The cutter is located at the bottom of the forming net; a discharging plate is arranged at the bottom of the table plate, a screen is fixedly connected to the bottom end of the discharging plate, the discharging plate and the screen are obliquely arranged, two elastic strips are arranged on the bottom face of the screen, and knocking balls are fixedly connected to the ends of the elastic strips. According to the utility model, through cooperation of components, after taro processing is completed, the screen can screen taro blocks, intermediate links are reduced, the whole processing flow is more compact and efficient, and meanwhile, when the screen is used for screening, the knocking balls and the elastic strips continuously knock the screen, so that the workload of manual cleaning is reduced, the labor cost is reduced, and the production efficiency is improved. And the automation degree and the stability of production are improved.
Owner:JIANGSU FOOD & PHARMA SCI COLLEGE

Unmanned aerial vehicle fresh tobacco leaf packaging and transporting device

The utility model belongs to the technical field of tobacco leaf transportation, and particularly discloses an unmanned aerial vehicle fresh tobacco leaf packaging and transporting device which comprises a plurality of sets of shear type supports connected through hinge shafts, arc-shaped frames are arranged on the upper portions of the shear type supports and jointly form a semicircular bearing cavity, and bearing plates are arranged between the adjacent shear type supports for connection. The two ends of the upper portion of the shear type support are fixedly connected with positioning blocks respectively, the positioning block on one side is connected with a fixing belt, the tail end of the fixing belt is hinged to a buckle, the positioning block on the other side is connected with an adjusting belt, and the positioning blocks on the two sides are further connected with hanging rings. Connecting rods are further arranged on the lower portions of the shear type supports to be connected with the supports on the same side, and nuts are connected to the connecting rods in a threaded mode. Intermediate links of traditional manual carrying are remarkably reduced, terrain limitation is broken through by means of an air transportation path, integrated efficient operation from field packaging to unmanned aerial vehicle transferring of fresh tobacco leaves is integrally achieved, the labor intensity of tobacco growers is reduced, and meanwhile the efficiency and reliability of transportation operation are improved.
Owner:XINGREN BRANCH OF QIANXINAN TOBACCO CO

Drying, sterilizing and classifying equipment for food processing

The utility model relates to the technical field of food processing equipment, and discloses drying, sterilizing and classifying equipment for food processing, which comprises a drying mechanism, a sterilizing mechanism is arranged on the right side of the drying mechanism, and a classifying mechanism is arranged on the right side of the sterilizing mechanism; the drying mechanism comprises a first mesh belt conveyor, a heating frame is fixedly connected to the top of the first mesh belt conveyor, a heating pipe is installed in the heating frame, an infrared heater is installed at the front end of the heating frame, a hollow ventilation hole is formed in the top of the heating frame, and a filter screen and an air inlet pipe are fixedly connected to the inner wall of the ventilation hole; and a fan is mounted at the top of the heating frame. According to the drying, sterilizing and classifying equipment for food processing, the three functions of drying, sterilizing and classifying are integrated, food sequentially passes through the sterilizing mechanism and the classifying mechanism from entering the drying mechanism, transfer between different equipment is not needed, intermediate links are reduced, and the production efficiency of food processing is greatly improved.
Owner:云南乙元食品开发有限公司

Cell phone assembly transfer mechanism

ActiveCN224615554Uachieve positiveAchieve side flip conversion
This utility model discloses a transfer mechanism for mobile phone assembly, relating to the technical field of automated equipment for mobile phone assembly. The transfer mechanism includes a transfer drive assembly, a flip drive assembly for rotating the front and side of the mobile phone, and a fixture for placing the mobile phone. The flip drive assembly includes a support, a flip drive device, and a flip rod. The support is mounted on the output end of the transfer drive assembly, and the flip rod is mounted on the output end of the flip drive device. The flip rod is rotatably located on the support, and the fixture is detachably mounted on the flip rod. By integrating the transfer drive assembly and the flip drive assembly into one unit, the mobile phone can efficiently complete position movement and angle rotation during assembly, improving production efficiency. The flip drive device and flip rod enable the conversion between the front and side of the mobile phone, facilitating quick and easy welding conversion between the front and side of the mobile phone.
Owner:SHENZHEN HAIXUN INTELLIGENT EQUIP CO LTD

Bottle blank visual inspection and tail cutting integrated machine

ActiveCN224465197UAvoid frequent transfersReduce turnover timesMotor driveGear wheel
The utility model relates to the technical field of bottle blank production and processing, disclose a bottle blank visual inspection tail shearing integrated machine, including the bottom cabinet, the top of bottom cabinet installs the elastic bottle blank cover star -shaped dish, the bottom fixed connection of elastic bottle blank cover star -shaped dish has first transmission gear, the top of elastic bottle blank cover star -shaped dish is provided with the connecting block, the one side of connecting block installs first camera group, the other side of connecting block is fixedly provided with servo motor, the output of servo motor is connected with synchronous belt, the inner wall tooth end of synchronous belt is connected with gear set and engages, the middle part of bottom cabinet is installed the carousel, the one side of carousel evenly is provided with the vacuum negative pressure suction and is connected with the label of sliding pulley follow -up, in the utility model, through second servo motor drive carousel and elastic bottle blank cover star -shaped dish operation, through tail shearing cutter rest height of tail shearing cutter structure is adjusted, carries out tail shearing, through servo motor drive synchronous belt makes the bottle blank in carousel to rotate.
Owner:DONGGUAN YICHI AUTOMATION EQUIP CO LTD

Integrated auxiliary device for boning and trimming beef and mutton

The utility model relates to the technical field of meat processing, in particular to a beef and mutton boning and trimming integrated auxiliary device which comprises a main body, and the top of the main body is fixedly connected with a conveying assembly and a boning and trimming assembly; according to the beef and mutton boning device, the cutting angle and depth of the boning cutter can be automatically adjusted according to the shapes and sizes of beef and mutton through driving of the rotating motor and stretching of the telescopic rod, the boning effect is ensured, and the boning platform and the trimming cutter head are driven through stretching of the telescopic cylinder to trim the boned beef and mutton; the trimming platform adopts a telescopic adjustable design and adapts to beef and mutton of different sizes, the device can efficiently complete beef and mutton boning and trimming work, the processing efficiency is improved, meat waste is reduced, sanitation and safety in the processing process are guaranteed, the boning and trimming integrated design reduces intermediate links, and the production cost is reduced. And the processing efficiency is improved.
Owner:GANSU ZHONGHONGXIANG AGRICULTURAL PRODUCTS FRESH SUPPLY CHAIN CO LTD

Wool washing and shearing integrated equipment for animal husbandry

The invention discloses wool washing and shearing integrated equipment for animal husbandry, and relates to the technical field of animal husbandry, the wool washing and shearing integrated equipment comprises an operation platform, a wool washing pool and a support frame, the top surface of the operation platform is provided with two leg limiting ports, and the leg limiting ports are sequentially arranged at intervals along the front-back direction of the operation platform; a baffle plate is connected to the leg limiting opening in a sliding manner; the wool cleaning pool is arranged below the operation platform and corresponds to the leg limiting openings. The supporting frame is fixed to the top face of the operation platform, linear adjusting mechanisms are arranged on the front side and the rear side of the top of the supporting frame respectively, each linear adjusting mechanism is provided with two adjustable sliding blocks, and the sliding blocks are connected with elastic binding bands. The leg limiting openings are used for limiting the front legs and the rear legs of the sheep, the elastic bandages on the linear adjusting mechanisms are used for limiting the front legs and the rear legs of the sheep after the sheep is turned over, the whole operation is simple, the sheep is used by an operator, and meanwhile after wool is sheared, the sheep can be guided into a wool cleaning pool from the leg limiting openings to be cleaned.
Owner:赤峰市农牧科学院 +1

Lithium iron phosphate production equipment

The utility model discloses a lithium iron phosphate production equipment relates to battery production equipment technical field, the utility model discloses a shell and feeding mechanism, the feeding mechanism includes first feeding pipe, the utility model discloses a feeding mechanism, and the weighing sensor in feeding mechanism can real -time monitoring and accurate metering the raw material weight of adding, once reaches the preset value and triggers the follow -up action, realizes the automation control of raw material feeding, this not only has improved the accuracy of feeding, also reduced the error and labor intensity of manual operation, through the integration of feeding mechanism, weighing, feeding and control function are integrated together, and the space of equipment occupied is saved, and the purchase, maintenance and operating cost required by traditional multiple equipment cooperation are reduced, and the automation of feeding mechanism makes the raw material's adding and mixing process more smooth, reduces the waiting time and intermediate link, thereby improves the overall production efficiency.
Owner:ZHEJIANG LINGYI NEW ENERGY TECHNOLOGY CO LTD

A multi-component feed additive processing and mixing apparatus

ActiveCN224711959UBreak the aggregation stateevenly dispersed
The utility model belongs to feed additive processing equipment technical field relates to a kind of multi-component feed additive processing and mixing equipment, including the mixing cylinder being erected on support frame, and the quantitative feeding crushing component is equipped on the mixing cylinder, and the powder grinding assembly, airflow disturbance component and powder stirring mixing device are sequentially equipped in the mixing cylinder from top to bottom, heating sleeve is sleeved on the mixing cylinder, temperature sensor and air pressure sensor are penetrated and arranged on the mixing cylinder, and the quantitative feeding crushing component is connected with the powder grinding assembly.The utility model is crushed and ground to the feed additive raw material of addition by the powder grinding assembly cooperation quantitative feeding crushing component, reduces the problem of uneven mixing caused by the size difference of particle, and airflow disturbance component cooperation powder stirring mixing device makes feed additive particle constantly tumble, collision, breaks the gathering state between particles, and promotes the uniform dispersion of each component;Mixing cylinder powder stirring area is heated by heating sleeve, to prevent material from dampening and caking phenomenon.
Owner:JINAN TIANTIANXIANG

A microwave plasma hazardous waste treatment device

This utility model relates to the field of hazardous waste treatment technology and discloses a microwave plasma hazardous waste treatment device, including a treatment box. A fixed column is fixed to the top of the inner cavity of the treatment box, and multiple stirring columns are fixed to the bottom of the fixed column. By setting a rotatable filter barrel with through holes and integrating stirring columns and a microwave plasma treatment device inside it, combined with the coordinated drive of a servo motor, gear transmission structure and servo electric cylinder, the entire closed-loop treatment process of hazardous waste in the treatment box, including synchronous feeding, stirring, solid-liquid separation, microwave plasma pyrolysis and residue discharge, is realized. This structure not only improves the solid-liquid separation efficiency, but also optimizes the microwave plasma treatment environment, avoids the problem of wet waste affecting plasma excitation efficiency, effectively shortens the treatment time, reduces intermediate links, reduces energy consumption, and significantly improves the safety and automation level of hazardous waste treatment.
Owner:SHANGHAI HANYI ENVIRONMENTAL PROTECTION TECH CO LTD

Automatic one-by-one conveying structure for plastic trays

The invention relates to the technical field of conveying structures, in particular to an automatic plastic tray one-by-one conveying structure which comprises a first conveying belt, a second conveying belt and a U-shaped frame, the first conveying belt and the second conveying belt are both used for conveying plastic trays, the U-shaped frame is located below the first conveying belt, and guide grooves are formed in the front side wall and the rear side wall of the U-shaped frame; by designing a special conveying structure, the first conveying belt and the second conveying belt do not need to be started and stopped frequently, and therefore the fatigue damage phenomenon of equipment is reduced; the end of the second conveying belt is higher than the first conveying belt through vertical movement of the second conveying belt, the trays on the first conveying belt are blocked by the second conveying belt, and therefore the trays are conveyed one by one, other structural modes do not need to be arranged for blocking of the trays in the structural mode, only the second conveying belt needs to be used, and the conveying efficiency is improved. Therefore, the second conveying belt not only realizes a conveying function, but also realizes a blocking function.
Owner:SHANDONG HENG XIN JI PLASTICS

Tidal power generation speed-increasing transmission mechanism capable of bearing bidirectional torque and power generation device

The tidal power generation speed-increasing transmission mechanism comprises a face gear transmission device, one end of the face gear transmission device is connected with an external blade, and the other end of the face gear transmission device is connected with an overrun clutch transmission device; the planetary gear transmission device is connected with the overrun clutch transmission device; when bearing forward torque transmission, the forward torque is transmitted to the planetary gear transmission device through the face gear transmission device and is output at a high speed by the planetary gear transmission device, and the torque input direction and the torque output direction are opposite. When bearing reverse torque transmission, the reverse torque is transmitted to the face gear transmission device through the planetary gear transmission device, the face gear transmission device idles, the reverse torque is output by the planetary gear transmission device at a high speed, and the torque input direction and the torque output direction are the same.
Owner:XIAN LASER TRANSMISSION TECH CO LTD

A packaging apparatus with self-sealing zipper tape loading

The utility model discloses a kind of packaging equipment with self-sealing zipper tape feeding, it is related to packaging equipment technical field, and the efficient, high-quality online automatic feeding of self-sealing zipper tape can be realized. Upper heat sealing device and lower heat sealing device are all including circulating rotation's rolling tape, heating part, guide mechanism and merging alignment mechanism, heating part is set to the inside of rolling tape to heat rolling tape, guide mechanism is oppositely set with the outside of rolling tape, so that rolling tape outside and guide mechanism between formation are used for heat sealing passage for common passage of adhesive tape and packaging bag blank tape. Through zipper tape feeding branch guide device, the automatic, continuous feeding and splitting of self-sealing zipper tape are realized, dynamic heat sealing passage is formed using the rolling tape of circulating rotation cooperation built-in heating part and guide mechanism, so that packaging bag blank tape and adhesive tape can be completed heat sealing in continuous progress, improve production speed;Meanwhile, rolling contact heating pressure is more uniform, improves the initial sealing quality of zipper and product yield.
Owner:WENZHOU YIHUI MASCH CO LTD

Integrated full-automatic assembly line for carrying, scanning, positioning and welding end sockets

The invention relates to the technical field of seal head processing, in particular to an integrated full-automatic assembly line for carrying, scanning, positioning and welding seal heads, which comprises two groups of identical processing parts for transporting, positioning, scanning and welding the seal heads, and each group of processing part comprises a first conveying frame and a second conveying frame which are respectively used for conveying the seal heads and accessories on the seal heads; the material frame is arranged between the first conveying frame and the second conveying frame and used for placing machining accessories; the two groups of positioning tools are symmetrically distributed between the first conveying frame and the second conveying frame and are used for clamping and positioning the end socket; the grabbing robot is arranged between the two sets of positioning tools and used for taking and placing the end socket machining accessories; the material claw is mounted on the grabbing robot and is used for carrying out grabbing work; the industrial scanning camera is mounted on the grabbing robot and is used for scanning; and the two groups of welding robots are respectively arranged on one sides of the two groups of positioning tools and are used for carrying out welding work.
Owner:WUYI HONGYUN ELECTROMECHANICAL EQUIP CO LTD

Session duration calculation method and device, computer device, and storage medium

This application provides a method, apparatus, computer device, and storage medium for calculating session duration. The method involves creating an access log table and generating link identifiers for each session in the access log table; creating a session log table based on the link identifier, start time, end time, and access duration of each session, and using the link identifier and start time in the session log table as the session identifier; and replacing records with the same session identifier in the session log table using the ClickHouse replacement engine. This invention integrates the session duration algorithm into the ClickHouse database, fully utilizing the ClickHouse aggregation and replacement engines to achieve real-time statistics of access duration. This not only reduces intermediate steps and saves costs associated with devices, storage, and maintenance such as those associated with Kafka, but also eliminates the need to develop external applications, avoiding the bandwidth and memory costs associated with reading and writing data.
Owner:XIAMEN JIKUAI TECH CO LTD

Friction stir additive manufacturing device and method for high-entropy alloy particle reinforced aluminum matrix composite

The invention belongs to the technical field of friction stir solid-phase deposition additive manufacturing, and particularly relates to a friction stir additive manufacturing device and method for a high-entropy alloy particle reinforced aluminum matrix composite. Comprising an extrusion deposition system and a continuous feeding system, and the extrusion deposition system comprises an extrusion screw and a rotating shaft shoulder; the continuous feeding system comprises a raw material box, an induction heater and a feeding roller; and a feeding pipe of the continuous feeding system is communicated with an extrusion screw rod of the extrusion deposition system. The device can achieve continuous feeding of raw materials with different particle sizes and efficient and rapid solid-phase additive manufacturing, does not need a protective atmosphere in the additive manufacturing process, can operate in the atmospheric environment, and has the advantages of being high in raw material adaptability, high in additive manufacturing efficiency, low in manufacturing and maintenance cost and the like. According to the method, through heating plasticization and continuous extrusion, a thermoplasticized mixed raw material is deposited on the surface of a substrate to form a deposition layer, meanwhile, stirring friction is conducted on the deposition layer, and rapid preparation of the high-entropy alloy particle reinforced aluminum-based composite material additive body is achieved.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Chuanxiong polysaccharide, and preparation method and application thereof

This invention relates to the field of plant extract technology, specifically disclosing a polysaccharide from Ligusticum chuanxiong, its preparation method, and its applications. The preparation method includes: soaking Ligusticum chuanxiong raw material in water, followed by flash extraction at -0.08 to -0.06 MPa; after extraction, adding an alcohol solvent and an ammonium salt to the system, allowing it to stand and separate into layers, dialyzing the lower aqueous phase, concentrating the dialysate to obtain a concentrate; adding an alcohol solution to the concentrate, allowing it to stand and separate into layers, collecting the precipitate, and obtaining the Ligusticum chuanxiong polysaccharide. In the preparation method of Ligusticum chuanxiong polysaccharide provided by this invention, the flash extraction method disrupts the rigid cell wall structure of Ligusticum chuanxiong, promoting polysaccharide dissolution; its synergistic selective and partitioning characteristics with the aqueous two-phase system achieve efficient, rapid, and high-purity extraction of Ligusticum chuanxiong polysaccharide, providing a new approach to the extraction of Ligusticum chuanxiong polysaccharide.
Owner:SICHUAN CHENGDU CENT AGRI UNIV MODERN AGRI IND RES INST

Digital ray detection simulation system suitable for laboratory

The invention discloses a digital ray detection simulation system suitable for a laboratory, the digital ray detection simulation system suitable for the laboratory comprises a ray machine, an electric control module, a mechanical transmission module and a safety protection module, the mechanical transmission module is composed of a ray tube moving mechanism and a detector moving mechanism; the ray machine is arranged on the ray tube moving mechanism, and the ray tube moving mechanism is controlled by the upper computer to move; a radiation detector is arranged on the detector moving mechanism; the electric control module is composed of a computer and a programmable controller, the computer and the programmable controller are integrated in an operation table, and the electric control module is controlled and collected by an upper computer through a routing relay. The digital radiographic detection simulation system suitable for the laboratory adopts a digital radiographic detection technology, reduces intermediate links of imaging, directly realizes datamation of a detection result, reduces intermediate links, improves detection efficiency, realizes green detection, and meets the requirements for quality detection in an efficient construction scene.
Owner:OFFSHORE OIL ENG CO LTD +1

Method for preparing high-purity silicon tetrafluoride by dissociating fluosilicate through low-temperature plasma

PendingCN121948461AAvoid high temperature pyrolysisavoid demandingHalogenated silanesPlasma technologyFluidized bed
The invention relates to a method for preparing high-purity silicon tetrafluoride by dissociating fluosilicate through low-temperature plasma. The method comprises the following steps: crushing fluosilicate in a crusher, and heating and dewatering in a vibrated fluidized bed; the treated fluosilicate powder is conveyed to a plasma reactor through carrier gas to be dissociated to generate silicon tetrafluoride; and finally, silicon tetrafluoride generated by reaction enters a first-stage condenser to separate solid metal fluoride, then enters a cold hydrazine to be cooled for first-stage impurity removal, and then enters an adsorption tower for second-stage impurity removal, so that high-purity silicon tetrafluoride is obtained. The fluosilicate is dissociated by adopting a low-temperature plasma technology, so that high-purity silicon tetrafluoride is efficiently prepared under a low-temperature condition; meanwhile, the one-step method is short in conversion process, fluorine-containing waste is not generated, a simple purification step is combined, the production cost and the environment-friendly burden are reduced, the raw material adaptability is high, and operation is easy.
Owner:PERIC SPECIAL GASES CO LTD

Vascular navigation path planning method based on deep reinforcement learning

The invention belongs to the technical field of vascular navigation and deep neural network modeling, and provides a vascular navigation path planning method based on deep reinforcement learning. The method comprises the following steps: firstly, constructing a vascular navigation state action model by unifying a coordinate system, dividing a safety corridor and binding a state action index; configuring parameters of a strategy network, a value network, an experience playback buffer area and a soft target network to form a training preparation structure; training to obtain a convergent navigation model through multiple interaction rounds in combination with composite reward calculation and parameter updating; finally, candidate paths are generated, and deployable vascular navigation configuration is output through screening, instruction resampling and parameter packaging. According to the method, the safety, efficiency and control smoothness of path planning can be effectively improved, vessel wall collision is avoided, the method adapts to a complex vessel branch environment, and the reliability and adaptability of robot navigation are enhanced.
Owner:王铭章

Three-degree-of-freedom series-parallel electromagnetic drive mechanical arm

The invention discloses a three-degree-of-freedom series-parallel electromagnetic drive mechanical arm which comprises at least two sets of mechanical arm joints sequentially arranged in the axial direction. The mechanical arm joint comprises a bottom plate, a plurality of driving mechanisms and a voltage reduction module, and the voltage reduction module is in communication connection with the power module; and between the adjacent mechanical arm joints, the output end of the driving mechanism of the previous section is rotationally connected with the bottom plate of the next section, a control module in communication connection with the power module is arranged at the bottom of the bottom plate at the head end, and the control module is in communication connection with the driving mechanisms. According to the three-degree-of-freedom series-parallel electromagnetic driving mechanical arm, traditional mechanical transmission parts such as a motor and a lead screw are abandoned, so that a driving element and an executing mechanism are tightly integrated, intermediate links are reduced, the energy conversion efficiency is improved, miniaturization and light weight of the mechanical arm are achieved, the size of the whole machine is further reduced, and adaptability is improved; and the operation can be carried out in a complex or limited space.
Owner:SICHUAN UNIV +1

A control method for a magnetic suspension centrifugal compressor unit system

ActiveCN118934671BShorten the development and debugging cycleReduce intermediate linksPump componentsPump controlFrequency changerControl engineering
The present application relates to the field of compressor unit, especially to a control method for a magnetic suspension centrifugal compressor unit system, which comprises a compressor, a controller, a frequency converter and a unit control cabinet, and the controller is integrally arranged on the compressor; the method specifically comprises the following steps: S1, the frequency converter integrates and sends current state and rotating speed information to the controller; S2, the controller transmits information data reflected by the frequency converter to the unit control cabinet; S3, the unit control cabinet sets working conditions according to the information data and sends them to the controller; S4, the controller controls the opening of the valve of the compressor according to the working conditions and issues rotating speed command to the frequency converter; S5, after the system is adjusted, the whole system maintains the set working conditions to operate until an external shutdown instruction is received, and the system is shut down. By integrally arranging the controller on the compressor, the compressor is highly integrated and independently controlled, and the control method can reduce the overall adjustment period of the system.
Owner:XINLEI COMPRESSOR CO LTD

Inclined journal stepless speed change method, gearbox and bicycle

The invention relates to the technical field of stepless speed change, in particular to an inclined journal stepless speed change method, a gearbox and a bicycle. The inclined journal stepless speed change method comprises the following steps that S1, a speed change mechanism drives a linkage rod to move so that the linkage rod can drive a linkage frame to move along an inclined journal; s2, after the linkage frame body moves, the inclined shaft neck drives the driving point position of the linkage frame body to change, and then the movement stroke of the linkage frame body is changed; s3, the moving stroke of the linkage frame body is changed, so that the output speed of the transmission gear assembly is changed; s4, changing the output rate of the transmission gear assembly to change the output rate of the output gear assembly so as to realize the speed change of the rotating cylinder; according to the inclined journal stepless speed change method, the gearbox and the bicycle, the movement stroke change of the driving component is directly converted into the movement stroke change of the linkage rack, intermediate links in the speed change process are reduced, movement is directly converted through the linkage component and acts on the rotating cylinder through the output gear assembly, and smooth and stable stepless speed change is achieved.
Owner:CHENGDU FUKAI TECHNOLOGY CO LTD

A screening platform for optimizing the distance of baculovirus bidirectional promoters, a screening method and application thereof

The application belongs to the technical field of bioengineering, and discloses a screening platform for optimizing the interval of baculovirus bidirectional promoters, a screening method and application. The application constructs a high-resolution screening platform with a reference gene integrated in a virus skeleton, and through two-stage screening, first, a transcription enhancement interval is determined by rough screening in the 98-245bp interval, and then, fine screening is performed in the transcription enhancement interval by 1bp steps, so that the optimal interval length of the p10 and polh promoters is determined as 153bp by normalizing the reference fluorescent signal to correct errors such as infection efficiency. The interval is applied to a recombinant adeno-associated virus (rAAV) packaging system, transcription interference between the bidirectional promoters is eliminated, the expression balance of Rep and Cap proteins is restored, the rAAV genome replication efficiency is improved by 3 times, the empty shell rate is reduced from 84.9% to 20.1%, and the transduction efficiency in mammalian cells can be maintained.
Owner:SHENZHEN RESEARCH INSTITUTE OF NORTHWEST A & F UNIVERSITY