22results about How to "Efficient and accurate operation" patented technology

The invention provides a fixed-time optimal control method and system of a single-connecting-rod mechanical arm, and relates to the technical field of optimal control of the single-connecting-rod mechanical arm. The fixed-time optimal control method comprises the steps that a kinetic model of the single-connecting-rod mechanical arm to be controlled is obtained, and the model is converted into a state model by introducing a state variable; according to the state model, an active-disturbance-rejection control strategy is adopted, and an expansion state observer is established and used for observing disturbance state information of the single-connecting-rod mechanical arm; based on the state model and the extended state observer, a backstepping method technology and a reinforcement learning algorithm are combined, an optimal controller for the single-connecting-rod robot mechanical arm is designed, and self-adaptive optimal backstepping control is conducted on the single-connecting-rod robot mechanical arm; the active disturbance rejection control technology and the fixed time optimal control are combined, a new control strategy and an optimization path are developed, and the control performance and the stability of the mechanical arm system are further improved.

The invention provides a method for detecting multi-gas concentration in exhaust gas and a gas filtering system, and relates to the technical field of gas detection. The method comprises the following steps: setting components and concentration of mixed gas according to characteristics of target detection gas, and injecting the mixed gas into a light filtering channel to eliminate illumination interference of a red light wave band so as to obtain first illumination; after a user detection instruction is obtained, the gas inlet valve is opened, the exhaust gas enters the detection chamber, the exhaust gas entering the detection chamber is detected through the gas automatic identification module, and the concentration of multiple target detection gases is estimated. Determining the target detection gas with the highest concentration, adjusting an optical filter to filter the first illumination to obtain second illumination, enabling the second illumination to penetrate through the exhaust gas to obtain third illumination, determining the concentration of the target detection gas according to the third illumination and the second illumination, and displaying the concentration on a screen in real time. In a complex gas emission environment, the influence of interference gas is eliminated, and the concentration of target detection gas is accurately detected.

The utility model relates to the field of machining production lines, and provides automatic bridge end face polishing equipment which comprises a conveying roller way, a polishing module and a locking module. The grinding module comprises a grinding machine support, a transverse rail and a double-face grinding machine, the transverse rail is fixedly arranged on the upper portion of the grinding machine support, and the double-face grinding machine is arranged on the transverse rail in a sliding mode. A first polishing wheel and a second polishing wheel are arranged on the front side face and the rear side face of the double-face polishing machine correspondingly to polish the end faces of the bridges on the two sides. And the locking module comprises a telescopic rod for preventing the bridge frame from advancing and a pressing device for pressing the bridge frame. The double-face polishing device has the advantages that the double-face polishing device is adopted for accurate and efficient operation, the end faces of the two sides after cutting are polished at the same time in the production process of the bridge frame, accurate control over the polishing operation speed is achieved through a control system, the efficiency and adaptability of a production line are remarkably improved, and the production cost is reduced. And various complex production requirements can be met.

The invention discloses a preparation method of a copolyamide hot melt adhesive with low VOC (volatile organic compound) emission, which comprises five steps of feeding, salt forming reaction, polymerization reaction, pressure release and negative pressure stage, and is mainly characterized in that the low-VOC copolyamide hot melt adhesive is produced and synthesized by adjusting a production process, mainly adjusting a reaction process in the salt forming stage in a polyamide hot melt adhesive synthesis process. The copolyamide hot melt adhesive is synthesized by adopting a specific salt forming process and a synthesis route, and the VOC emission of copolyamide is low and does not exceed 10g / kg.

The invention relates to the technical field of oil and gas exploration and exploitation, and discloses a mud filtering device suitable for large-displacement well hydraulic auxiliary extension, which comprises a mounting base, a backflow inner cylinder is sleeved in the center of the interior of the mounting base, and a slag separation conical disc is sleeved on the outer wall of the middle part of the mounting base; the bottom of the slag separating conical disc is provided with a slag discharging cylinder cover connected with the outer wall of the bottom of the mounting base in a sleeving mode. The durability and efficiency of equipment are improved by buffering mud impact, reducing pressure, preventing erosion, guiding spiral flow, protecting components, accelerating filtration and improving the durability and efficiency of the equipment; relevant component combinations are used for timely cleaning retained impurities, the filtering precision and process are guaranteed, and stable operation of the filter is maintained; a sensor and a supervisory system are arranged, use time data are collected and analyzed, filtering coefficients are calculated and compared, the filtering state can be automatically judged, slag can be automatically discharged when the filtering state is abnormal, the burden of personnel is relieved, and the stability and efficiency of production operation are improved.

The invention relates to the technical field of medicine flow direction data processing, and discloses a medicine flow direction data cleaning method and system based on intelligent processing, and the system comprises a medicine flow direction information obtaining module, a medicine flow direction information cleaning module, and a medicine flow direction information cleaning output module. Intelligent matching of target medicine flow direction data cleaning tool types is carried out based on big data storage medicine flow direction data cleaning tool type information in combination with an intelligent recognition algorithm and target medicine flow direction data attribute feature text information, and refined and intelligent analysis of the target medicine flow direction data cleaning tool types is achieved. The medicine flow direction data cleaning quality is improved; according to the target medicine flow direction data cleaning tool type analysis parameters, data cleaning is autonomously and efficiently carried out on the target medicine flow direction collection data, and efficient and accurate operation of target medicine flow direction data cleaning operation is achieved.

The application discloses a farmland tail water storage and recycling regulation system and method based on a zeolite ecological ditch, and relates to the field of farmland drainage regulation. The system comprises: a field storage and drainage unit, which is used for preliminary storage of rainfall and farmland drainage by relying on the water storage capacity of the field ridge; a zeolite ecological ditch purification unit, which is used for adsorption, sedimentation and storage of farmland drainage by the zeolite ecological ditch, and discharge of purified tail water; wherein the addition ratio of zeolite in the zeolite ecological ditch is determined by a nitrogen removal rate gradient experiment; a tail water storage and recycling unit, which is used for temporary storage of the purified tail water and recycling of the purified tail water to the farmland; a monitoring unit, which is used for monitoring water environmental indexes in each part; and a control unit, which is used for controlling farmland drainage time, tail water storage time and tail water recycling time according to the water environmental indexes. The application realizes the recycling of farmland tail water, and improves the utilization rate and operation and control precision of farmland water resources.

The utility model discloses an iron rolling machine with a tabletting mechanism, which relates to the field of iron rolling machines, and comprises a supporting bottom block, the bottom surface of the supporting bottom block is uniformly butted with bottom cushion blocks, the top surface of the supporting bottom block is fixedly inserted with a guide column body, and the top end of the guide column body is horizontally and fixedly provided with a fixed top plate; a movable top plate is horizontally arranged on the top face of the supporting bottom block, supporting bottom rollers are evenly connected to the top face of the supporting bottom block in a clamped mode, an iron rolling machine body is fixedly arranged on one side edge of the supporting bottom block, a control panel is fixedly arranged on one side edge of the iron rolling machine body, and top air cylinders are evenly and fixedly arranged on the top face of the fixed top plate. Bottom screw holes are evenly formed in the bottom face of the supporting bottom block, connecting screw rods are fixedly connected to the top face of the bottom cushion block in an inserted mode, an adjustable structure is adopted so that various tablet pressing use requirements can be met, and meanwhile tablet pressing operation can be more accurate and efficient under a single-point-position control structure.

The utility model relates to the PCBA paster technology field, and specifically relates to a high-efficiency accurate paster device for PCBA automatic production and processing, the high-efficiency accurate paster device comprises a rack, a positioning plate, a chip mounter, an installation rod, a telescoping cylinder, a transport plate and a pressure plate, the positioning plate is arranged above the rack, the chip mounter is arranged at the bottom of the positioning plate, the installation rod is arranged at the outer side of the positioning plate, the telescoping cylinder is arranged on the outer side of the positioning plate, and the transport plate is arranged on the bottom of the positioning plate. The mounting rod is located at the bottom of the telescopic cylinder, the conveying plate is arranged under the telescopic cylinder, and the pressure plate is located at the center of one side of the top of the conveying plate; the chip mounter can be disassembled and assembled through the positioning plate, meanwhile, the mounting rod can be positioned, disassembled and assembled under the action of the positioning hole, the mounting rod drives the telescopic cylinder, positioning can be carried out when a PCBA board is subjected to chip mounting, it is guaranteed that the PCBA board is not subjected to deviation during chip mounting, and finally the PCBA board can be positioned and output in cooperation with the conveying plate and the pressure plate; the PCBA board can be conveyed to a designated position for chip mounting, so that products can be operated efficiently and accurately.

The utility model relates to the technical field of battery recycling and disassembling, and discloses a portable lead-acid battery disassembling device which comprises a disassembling box, the bottom of the inner side of the disassembling box is fixedly connected with a turnover liquid discharging mechanism, the inner side of the disassembling box is fixedly connected with a pole piece disassembling mechanism, the turnover liquid discharging mechanism comprises a stand column, and the stand column is fixedly connected with the pole piece disassembling mechanism. The bottoms of the stand columns are fixedly connected to the bottom of the inner side of the dismounting box, a fixing shaft is fixedly connected to the close sides of the two stand columns, rotating blocks are rotationally connected to the outer sides of the fixing shafts of the stand columns, and a dismounting table is rotationally connected to the outer sides of the fixing shafts of the stand columns. According to the utility model, the L-shaped sliding block is pushed to slide on the sliding rail through the overturning driving cylinder, the rotating block is driven to rotate around the upright post fixing shaft, and then the dismounting table is overturned, so that the battery liquid automatically flows into the battery liquid pool to be collected, the battery liquid is efficiently discharged, the dangerous liquid can be prevented from being manually contacted, and the potential safety hazard caused by misoperation is prevented.

The invention provides an automatic bagging machine matched with an automatic sleeve production line. The automatic bagging machine comprises a supporting platform, a sleeve bagging mechanism, a sleeve pushing mechanism and a control mechanism, the sleeve bagging mechanism comprises a bagging support fixed to the front side of the supporting platform, a bag opening lower plate fixed to the rear end of the middle of the bagging support, and a bag opening upper plate located above the bag opening lower plate. The bag opening air cylinder is fixed to the top of the bagging support, and a piston rod of the bag opening air cylinder is fixedly connected with the bag opening upper plate; the bagging turning plate is hinged to the front end of the middle of the bagging support; the sleeve pushing mechanism comprises a moving mechanism arranged on the supporting platform, an upper-layer moving material disc arranged on the moving mechanism and a pushing air cylinder fixed to the rear end of the upper-layer moving material disc, and a piston rod of the pushing air cylinder is fixedly connected with the pushing baffle. The control mechanism is used for controlling operation of the bag opening air cylinder, the moving mechanism and the pushing air cylinder. According to the sleeve bagging device, accurate and efficient sleeve bagging operation can be achieved, and the human input cost is greatly reduced.

This utility model provides a wear-resistant and high-toughness composite titanium-based cermet cutting tool, relating to the field of metal cutting technology. It includes a tool head assembly, which comprises a titanium-based cermet base, a transition layer, and a composite wear-resistant coating. The composite wear-resistant coating is deposited on the surface of the tool head assembly by magnetron sputtering. The transition layer covers the outer side of the composite wear-resistant coating. The tool head assembly consists of a titanium-based cermet base, a transition layer, and a composite wear-resistant coating. The 8-12μm thick composite wear-resistant coating is applied to the surface by magnetron sputtering, effectively resisting wear and significantly extending the tool head's service life. The transition layer covers the outer side, enhancing the bonding force between the coating and the base, uniformly dispersing stress, and improving overall stability. The cutting edge on the outer side of the titanium-based cermet base has a reasonable angle design for efficient cutting. A locking groove below the base forms a tool clamping rod, providing a secure connection and facilitating installation and disassembly. This allows the tool head assembly to operate accurately and efficiently in various cutting operations, reducing maintenance costs and improving processing efficiency and product quality.

The utility model discloses a reinforcing steel bar distance gauge, belongs to the technical field of reinforcing steel bar detection, and solves the problems that a positioning mechanism on an existing reinforcing steel bar distance gauge is fixed, the position of the existing reinforcing steel bar distance gauge cannot be adjusted according to the specification of a reinforcing steel bar, and the application range of the existing reinforcing steel bar distance gauge is limited. Comprising a base, an electric sliding rail fixedly connected to the base, a fixed positioning seat fixedly connected to the base and located in the middle of the electric sliding rail and two movable positioning seats, and the electric sliding rail is in transmission connection with two sliding seats moving in the opposite direction or in the back-to-back direction. In the using process of the steel bar dotting machine, an operator places a steel bar on the fixed positioning seat, the steel bar specification is automatically adapted through the V-shaped groove, after the detection circuit detects the steel bar, the driving motor is triggered to rotate forwards, the sliding seat acts to support the two ends of the steel bar, the steel bar is taken away after dotting is completed, and whether the steel bar exists or not is sensed. And the driving motor is triggered to reversely rotate and then stops acting, so that the steel bars with different lengths are automatically adapted without manual adjustment.

The invention discloses a retiming circuit, a multimode frequency divider and electronic equipment, and the retiming circuit comprises a second unit which comprises a plurality of transistors connected in series, and generates an intermediate signal according to a clock signal and a modulus signal; the third unit comprises a plurality of transistors connected in series, a second output signal is generated according to the intermediate signal, a reference signal and a clock signal, a reverse signal of the second output signal is a target output signal, the modulus signal and the reference signal have the same frequency, and the first output signal and the second output signal have the same frequency. The rising edge of the modulus signal determines the rising edge of the output signal, and the falling edge of the reference signal determines the falling edge of the output signal. According to the re-timing circuit, the multimode frequency divider and the electronic equipment provided by the invention, the output signal with the target frequency and the target duty ratio is generated through the new re-timing circuit.

The invention provides a rotary permanent magnet array adsorption switch and a control method thereof, and the switch comprises an assembly frame which comprises an inner ring body and an outer ring body, and the inner ring body can rotate around a first rotation center line; the permanent magnet group comprises a plurality of static magnets and a plurality of moving magnets which are alternately arranged, and the plurality of moving magnets abut against the inner ring body and respectively rotate around a plurality of second rotating center lines through the inner ring body; and the magnetic conductive pieces are connected with the adjacent static magnets and the movable magnets. Magnetic field transmission between the adjacent magnets is achieved through the magnetizer, the movable magnet can be driven by the inner magnetic ring to rotate synchronously, then the magnetic field overturning effect is achieved, and therefore the efficient and accurate magnetic adsorption switch process is completed. Synchronous driving of a plurality of moving magnets can be realized only through one driving mechanism, and compared with the conventional magnetic switch technology at the present stage, the magnetic switch has the remarkable advantages of flexible operation, high controllability, simple structure, low production cost, wide application range and the like.

The present invention belongs to the field of nucleic acid detection technology, and specifically relates to a primer set, a kit and a method for detecting ToBRFV. The primer set provided by the present invention can detect ToBRFV by loop-mediated isothermal amplification, and has the characteristics of rapidity, high specificity, high sensitivity, and easy operation. The amplified product can be efficiently and accurately displayed by nucleic acid gold-labeled test strips, fluorescent labels, enzymatic color change reactions, electrochemistry and other methods. At the same time, non-professionals can also operate and use the primer set for detection, which is conducive to promotion and application in actual quarantine.

The present invention relates to a testing device for fabrics, which aims to solve the problems of low quality inspection efficiency, insufficient flexibility and inconvenient handling in the process of fabric production. The device integrates a support plate, a tensile testing mechanism, a fabric transmission mechanism and other functional testing mechanisms to achieve continuous, efficient and multifunctional testing of fabrics. The tensile testing mechanism clamps the fabric through a clamp mechanism, pulls it vertically, monitors and records the tensile data in real time to evaluate the tensile strength and elongation at break of the fabric. The fabric transmission mechanism is responsible for transmitting the fabric from the initial position to each testing position, thereby achieving continuous testing of the fabric. Other functional testing mechanisms include a color difference detection mechanism and a breathability testing mechanism, which can detect various performance indicators of the fabric, such as color uniformity, color difference, and breathability, which not only greatly improves the efficiency and quality of fabric testing, but also enhances the flexibility of testing and reduces the difficulty of operation.

This invention provides an integrated device for preparing soil samples for triaxial testing, including a bottom component of a sample preparation mold. It addresses existing problems in triaxial sample preparation such as soil surface tilting, clay adhesion, uneven roughening, over-compaction, and sample disturbance during demolding. The core of the device includes a compaction mechanism, a bottom component of the sample preparation mold, a roughening device, and a demolding device. The compaction mechanism features a graduated compaction rod and sleeves of varying sizes with quick-tightening and locking airbag structures. A high-precision weighing sensor is embedded in the bottom of the mold. The roughening device is adapted to a telescopic bracket. The core compaction and roughening components are made of polytetrafluoroethylene (PTFE). The demolding device is adapted to a three-lobed mold. This device can precisely control the compaction thickness and soil sample uniformity, ensuring compaction smoothness and roughening consistency, avoiding clay adhesion and demolding disturbance, and significantly improving the accuracy and efficiency of triaxial sample preparation.

The invention provides an intelligent live-line insulator replacement method for a power transmission line, and belongs to the technical field of power operation and maintenance. An unmanned aerial vehicle is adopted to lift the insulator replacement robot to a working site, the robot is fixed to a cross arm, and then a mechanical arm is driven to execute insulator replacement work. In the aspect of the entity structure of the robot, a cross arm fixing mechanism carried on a chassis is designed, insulator replacement is completed through spring pins on mechanical arms, and operation is accurate and efficient; and meanwhile, an insulation structure and an electromagnetic shielding device are designed for the machine body, so that the safety is ensured. In addition, a position tracking and impedance control method is designed for the robot, and the reliability and safety of the robot during execution of an installation task are guaranteed in a power complex environment. And a remote monitoring and remote control operation system is designed, so that efficient two-way communication between the ground base station and the robot is realized. According to the invention, the safety and efficiency of insulator electric replacement operation can be obviously improved, and the working cost is reduced.

The present disclosure provides a kind of helium temperature simulation method and device of plant power coordination control system, method includes: make hot helium temperature controller carry out differential action, simulate to apply a negative reactivity disturbance;Adjust the differential time constant of hot helium temperature controller, obtain the response curve of process state variable in plant power coordination system under different differential time constant, obtain the response curve under differential action;According to the response curve under differential action, obtain optimal differential time constant.The present disclosure provides a kind of helium temperature simulation method of plant power coordination control system, when debugging hot helium temperature controller, according to the response curve of process state variable in plant power coordination system, obtain optimal differential time constant, proportional gain, in the complex large system of multiple input and multiple output, according to the coupling relationship between each control quantity and the controlled variable, establish debugging relationship, so that the result obtained by debugging meets the complex control process of high temperature gas cooled reactor.

The utility model relates to the technical field of masonry scraper devices, and discloses a mortar uniform scraping device for masonry of aerated concrete blocks, which comprises a handle, a U-shaped scraper head and a scraper, the handle is connected with the closed end of the scraper head, two sides of the scraper head are provided with a notch and a balance component, a connecting rod is arranged in the notch, and the scraper head is connected with the balance component. A scraper is fixed to the connecting rod, the diameters of the two ends of the scraper are larger than the diameter of the middle section, the scraper can translate and rotate along with the connecting rod, the balance assembly is closer to the handle than the notch, and the balance assembly is connected with the two ends of the connecting rod through push rods. When the scraper is inclined, the balance assembly at the inclined end can generate reacting force larger than that at the other end, so that the scraper is parallel, a self-correcting mechanism is formed, the scraper can be rapidly and effectively adjusted to be in a horizontal state through the mechanism, and uneven scraping caused by inclination is prevented.

This invention discloses an automatic color-sorting device for multi-core wires, including a device mounting panel. A clamping device is movably mounted on the front surface of the device mounting panel, and a wire-separating placement device is movably mounted on the lower front end of the clamping device. A wire core clamping unit is mounted on the lower end of the clamping device, and a wire-separating limiting plate is mounted on the side of the wire-separating placement device, correspondingly disposed on the front side of the wire core clamping unit. A wire-dropping device is movably mounted on the rear surface of the device mounting panel, and a wire-dropping limiting frame is mounted on the lower end of the wire-dropping device, with the front end of the wire-dropping limiting frame correspondingly disposed above the wire core clamping unit. The entire device has a compact structure, and all moving parts work together to achieve automated color-sorting and arrangement of multi-core wires. The operation is precise and efficient, significantly improving production efficiency and reducing labor costs. It is suitable for widespread application in the field of electronic device manufacturing and assembly.