80results about How to "Solve the existing disadvantages" patented technology

The invention relates to a campus classroom attendance checking-in system and a method for realizing attendance checking-in by using the system. The system comprises student mobile terminals, a class AP (Access Point), a class mobile terminal, a class server and a background server. The system is characterized in that the student mobile terminals and the class mobile terminal are connected through the class AP and the class server; and the class server is connected with the background server through the class AP. The campus classroom attendance checking-in system provided by the invention can be used for realizing the attendance checking-in of students by means of matching the student mobile terminals and the class mobile terminal with the server. According to the system and the method provided by the invention, the problems of low roll-call efficiency and low classroom scoring efficiency in the conventional university teaching can be overcome. The campus classroom attendance checking-in system has good practical values.

The invention discloses dry heat transfer printing paper and a preparation method thereof for textiles. The method includes preparing viscous fluid with a solid content of 2-10% w / w from a high polymer thickener and a water-soluble hot melt adhesive according to a mass ratio of (1:5)-(5:1); adding assistants such as acid, alkali, an absorbent and a fixing agent into the viscous fluid according to categories of fabric and dye so as to produce a transfer substrate; and subjecting the transfer substrate to coating, drying and press polishing processing for the paper to obtain the dry heat transfer printing paper for the textiles. The paper can generate strong adhesive force on the surface under a certain temperature and pressure and can be tightly attached to the fabric. If the paper is used for printing of non-thermoplastic fabric, modified or dewing treatment is not required any more before the printing, transfer printing can be directly performed on dry-state fabric, the dye transfer stability is guaranteed, and clean and high-quality printed patterns can be obtained; and simultaneously, the processing time is shortened, waste water emission of the printing and dyeing industry is reduced, and energy saving and environment protection are facilitated.

The invention provides a concrete distributor with an arm support capable of both horizontal rotation and pitching movement. The concrete distributor comprises a tower body support and an arm support system connected in parallel with a concrete pumping pipeline. The head end of the arm support system is rotationally connected with the tower body support in horizontal rotation manner via a first horizontal rotation mechanism. The concrete pumping pipeline comprises a feeding pipe and a discharge nozzle. The arm support system is formed by the tail-to-head connection of a large arm, a middle arm and a small arm, which are in relative movement to one another. The tail end of the large arm is rotationally connected with the head end of the middle arm in horizontal rotation manner via a second horizontal rotation mechanism. The tail end of the middle arm is rotationally connected with the head end of the small arm via a pitching mechanism. The tail end of the small arm is connected with the discharge nozzle. Since the arm support system is capable of both horizontal rotation and pitching movement, the concrete distributor incorporates the horizontal operation and the vertical operation, integrates the advantages of the prior two types of concrete distributors, improves the single operation mode of the prior concrete distributor, and substantially overcomes the problems of the prior two types of concrete distributors.

The invention relates to a dendrite corrosion low-power checkout integration method. The method comprises the following steps of: firstly, milling, grinding, polishing a sample so that the checkout surface reaches the mirror smoothness; then, corroding the sample and eroding a corrosion reagent on the checkout surface for 1-2 min; washing, wiping and drying; and scanning and shooting by adopting a low-power detection suspension scanner camera device after the checkout surface is corroded, and then, processing and printing the image. The method provided by the invention can realize dressing detection and solve the defect existing in the suspension sample by adopting the low-power detection suspension scanner camera device. The invention can detect the cast-state structure of low-carbon steel, medium-carbon steel, high-carbon steel, low-alloy steel or alloy steel, steel blanks and large-size steel samples, observe the solidification structure and the defects thereof as well as the evolution conditions of the solidification structure and the defects of a thermally processed sheet and also check the relation between the solidification structure and the defects and has the advantages of accuracy, easy operability, environmental protection, and the like.

The invention provides a novel oil-electric hybrid power road sweeper which comprises a motor vehicle, a sweeping device and a garbage box; the motor vehicle is mainly provided with a secondary chassis with a non-power taking window gearbox, an engine and a generator arranged at the lower left part of the front end; a crankshaft pulley on the front end of the engine uses two V belts to drive a generator belt pulley; the configuration requirements of the generator are as follows: 28V, 100A DC generator, and about 2000r / min rotating speed; the sweeping device mainly comprises a double-rotating brush, a side brush, a hydraulic power unit and all oil cylinders controlled by the same and all working motors; the whole sweeping device is in electric transmission, and each motor is connected with the generator through a single circuit; and the garbage box and the sweeping device are arranged on the motor vehicle. The oil-electric hybrid power road sweeper solves an oil-electric hybrid power model which not only adopts the single engine but also adopts an electric driving system to drag a sweeping operation system.

The invention provides a method for extracting regenerated carbon-containing fused magnesia from waste magnesia carbon bricks, which comprises the following steps: 1, removing impurities on the surface layers of the waste bricks; 2, placing the waste bricks in a kiln, heating the waste bricks by using external fuel to 800 to 1,000 DEG C, combusting graphite in the materials, blowing 80 to 180 mm of air, raising the temperature to 1350 to 1400 DEG C, and forming decarburized layers on the surfaces of the materials; 3, continuing to blow air for 30 to 90 minutes, cooling down to 600 to 650 DEG C, keeping the temperature for 300 to 600 minutes, and oxidizing bonding agent in the materials; 4, cooling, moving out of the kiln and removing the decarburized layers; and 5, crushing, rolling, screening and obtaining a final product. In the invention, according to a principle that phenolic resin is oxidized at above 460 DEG C and loses bonding strength, false particles are removed. The product burnt by the method has high purity and the same performance as original fused magnesia, and retains the graphite with high utilization value; and the graphite is coated on the outer layer of the fused magnesia, fills the air pores in the fused magnesia particles, improves the volume density (g / m<3>) of the particles, and improves anti- etching performance.

The invention discloses a tracking controller and control method for enhancing the coupling nonlinearity of a three-dimensional bridge crane. The method includes the steps that the target trajectory xd and the target trajectory yd of a trolley are defined, a new stored-energy function is established by introducing two generalized signals xi x and xi y capable of reflecting the speed and load swing information of the trolley, and the tracking controller for enhancing the coupling nonlinearity is designed according to the derivative mode of the stored-energy function. The tracking controller and control method have the beneficial effects that the new stored-energy function is established by introducing the two generalized signals xi x and xi y capable of reflecting the speed and load swing information of the trolley, and the tracking controlling method for enhancing the coupling nonlinearity is provided according to the derivative mode of the stored-energy function, the target trajectory can be tracked and controlled, and the transient state control performance of the controller is improved by means of the method.

The embodiment of the invention discloses a customer loss prediction method, a customer loss prediction device, customer loss prediction equipment and a computer readable storage medium. The method comprises the following steps: processing historical log data of customer information of a to-be-predicted project according to specific time granularity to obtain time sequence characteristic data; inputting the time sequence characteristic data into a pre-constructed tree model to obtain tree model characteristics; and inputting the time sequence characteristic data and the tree model characteristics into a customer loss prediction model, the customer loss prediction model being composed of a long and short term memory network model and a convolutional neural network model and comprising a hybrid model in cross-layer connection, and the output of the model being each customer loss probability of the to-be-predicted project. According to the method, the defects existing in manual feature extraction in related technologies are overcome, the customer loss prediction accuracy is improved, and the method has good universality.

The invention particularly aims to the technical field of boiler air preheating. A disclosed air preheating and flue gas waste heat utilizing system comprises a flue gas channel (17), an air channel (20), an air preheater (9), a condensed water flue heat exchanger (8) and a condensed water air channel heat exchanger (19), and further comprises a condensed water feeding main pipe (15) and a condensed water returning main pipe (12); the flue gas channel (17) and the air channel (20) are connected with the air preheater (9); the condensed water flue heat exchanger (8) is arranged on the flue gas channel (17) at the back of the air preheater (9) in a flue gas flowing direction; the condensed water air channel heat exchanger (19) is arranged on the air channel (20) at the front of the air preheater (9) in an air flowing direction. According to the air preheating and flue gas waste heat utilizing system, flue gas discharge and heat exchange can be automatically adjusted according to change of operation conditions; on the premise of ensuring the safety of a heated surface and the regular operation of the system, the maximization of the heat circulation efficiency and the system economical efficiency is ensured.

The invention discloses a quick start method for cultivating granular sludge employing a completely autotrophic nitrogen removal process, and belongs to the fields of urban sewage treatment and reclamation. The completely autotrophic nitrogen removal process (CANON) started in a sequencing batch reactor comprises the following steps: firstly, inoculating a part of back-flush sludge of a CANON biologic filter, and carrying out cultivation of CANON granular sludge under the condition of limited oxygen supply. Not only can the required dissolved oxygen be supplied, but also hydraulic shear force required for forming the granules is supplied. By adopting the quick start method disclosed by the invention, a plurality of problems that the CANON process is easily blocked and the like when running on the biologic filter for a long period of time are solved; a new idea can be supplied for application of the CANON process in the aspects of high and medium-concentration ammonia nitrogen simulation wastewater by the quick start mode within a short period of time.

The invention discloses a punching machine for bolt machining. The punching machine comprises a mounting plate and a machining seat. A base is arranged below the mounting plate. The two sides of the upper end of the base and the mounting plate are connected and fixed through supporting plates. A drive hydraulic cylinder is arranged in the middle of the upper end of the mounting plate. An output rod is arranged at the output end of the drive hydraulic cylinder. The lower end of the output rod is connected with a lifting sliding plate. The left end and the right end of the lifting sliding plateare in sliding contact with the supporting plates on the two sides. Two hanging plates are symmetrically arranged at the lower end of the lifting sliding plate. A rotating shaft is arranged between the hanging plates. The rotating shaft is rotationally provided with a rotating switching block. The punching machine is simple and reasonable in structure, by arranging a punch capable of being rotatedand switched and a lower mold capable of being replaced, machining on different bolts can be achieved by replacing a movable block, thus the defects of an existing device are overcome, and practicability is high.

A gear shifting mechanism of a power head with adjustable multi-level rotational speed is characterized by comprising a drill rod and a drill rod driving mechanism. The drill rod driving mechanism comprises two or more groups of motors arranged in parallel. The groups of motors jointly drive a gear shaft, a sliding gear and a shifting fork mechanism are arranged on the gear shaft, the sliding gear is respectively meshed with more than one group of gears under the action of the shifting fork mechanism, and the gears are sleeved on the drill rod. The gear shifting mechanism of the power head with adjustable multi-level rotational speed can meet various requirements on rotational speed and torque by the aid of a gear system, shortcomings of the traditional power head are overcome, wide torque adjustment range can be provided owing to drive of the multiple motors, multi-level rotational speed adjustment can be realized by the aid of the shifting fork mechanism and the sliding gear, and the gear shifting mechanism is reasonable in design, simple in operation, stable in transmission and wide in application range.

The embodiment of the invention discloses a visual salience region detection method and device. The method comprises the following steps: firstly, selecting a plurality of candidate image region blocks for each pixel point from an image to be processed by a random search method, and then selecting a target image region block with the highest similarity to the pixel points from each candidate imageregion block; Calculating a visual saliency value of each pixel point according to similarity between each target image block and the pixel points; Generating a visual saliency map of each level of the image to be processed based on the visual saliency values of each pixel point of the image to be processed; Finally, according to the visual salience values of the two adjacent layers, calculatingthe weights of the visual salience maps of each layer, and fusing the visual salience maps of each layer according to the weights. The present application improves the calculation efficiency of the pixel point visual saliency value, thereby effectively improving the detection efficiency of the visual saliency region of the image to be processed, and can also improve the detection accuracy and precision of the visual saliency region in the image to be processed.

The invention provides a medium orbit sateLLite deorbit method based on soLar radiation pressure. In consideration of the situation that no definite waste sateLLite treatment principLe is estabLishedin the current medium orbit region and the deveLopment prospect of a soLar saiL technoLogy, a disturbing force modeL of waste sateLLites and a Long-term evoLvement modeL of the waste sateLLites are estabLished, Long-term evoLvement conditions with or without soLar saiLs are anaLyzed, the feasibiLity of the condition that the soLar saiLs enter the atmosphere again is verified, infLuences of initiaLorbit parameters on Long-term evoLvement of the waste sateLLites are researched, and references are provided for seLecting appropriate initiaL orbit parameters for entering the atmosphere again.

The invention discloses an infrared opposite-type coal mine conveyor adhesive tape anti-tearing protection method and device. An infrared emitter and an infrared receiver are installed on longitudinal beams on the two sides of a conveyor through lower fixing frames correspondingly; a coal receiving mechanism is arranged between upper adhesive tape and lower adhesive tape of the conveyor and comprises two coal receiving boards and one coal receiving tank; the two coal receiving boards are arranged obliquely, and the interval between the upper ends of the two coal receiving boards is greater than the interval between the lower ends of the two coal receiving boards; meanwhile, the lower ends of the two coal receiving boards are connected with the upper ends of the two sides of the coal receiving tank correspondingly; the coal receiving tank is rectangular, and the upper end of the coal receiving tank is open; a connection rod is arranged at the interval between the two ends of the two coal receiving boards; and the infrared emitter and the infrared receiver are located in the middles of the two ends of the two coal receiving boards correspondingly. The infrared sensors are used as collection elements to achieve all the functions of an original anti-tearing protection device, the defects of the original anti-tearing protection device are overcome, safe production of a mine is ensured, and investment of the production cost is reduced.

The embodiment of the invention discloses a discrete aperture detection system for a large-aperture telescope, which comprises a kinematic interface and a discrete aperture detection subsystem mountedon the telescope by the kinematic interface. The discrete aperture detection subsystem comprises a plane mirror, a mechanical rotary table, a surface shape regulation execution mechanism and a wave front information calculation processor, wherein an aperture of the plane mirror is smaller than a full aperture of the telescope; the mechanical rotary table is used for driving the plane mirror to move so as to implement complete covering of the plane mirror used as a discrete sub-aperture on the aperture of the telescope; the surface shape regulation execution mechanism is arranged below the plane mirror and is used for carrying out bitwise open-loop correction on a surface shape of the plane mirror; the plane mirror and an interferometer at a Nasmyth focus of the telescope constitute a self-collimation optical path; and the wave front information calculation processor is used for obtaining wave front information of the telescope according to surface shape data of each discrete sub-aperture after surface shape correction in the process that the plane mirror moves to cover the full aperture of the telescope. According to the invention, self-collimation test accurate and test efficiency of the telescope are effectively promoted, and the discrete aperture detection system is also beneficial for reducing self-collimation test cost.

The invention discloses oral recombinant yeast and an application of target enteric canal DC (dentritic cell) presenting shRNA (short hairpin ribonucleic acid) mediated thereby. Yeast strain is taken as a host cell, and an shRNA interference vector is transfected into the host cell and has element arrangement of a promoter shRNA-miR30. The oral recombinant yeast can pass through the gastrointestinal tract of a live creature, the method for presenting shRNA by the target enteric canal DC can effectively overcome the defect in the prior art during presenting shRNA into the DC, and can be widely used in gene therapy.

The invention discloses a packaging box with a plastic handle. The packaging box with the plastic handle is characterized in that a first box cover with the plastic handle arranged in middle is arranged on an upper opening of a box body, a second box cover with a square opening is arranged on the upper portion of the first box cover, a first inserting tongue is arranged in the middle of one side of the second box cover and corresponds to a first inserting opening formed in one side of the first box cover, and a second inserting tongue is arranged on one side of the box body and corresponds to a second inserting opening formed in the first inserting opening. In this way, the packaging box with the plastic handle is simple in structure, reasonable in design, firm in opening sealing and ideal to use, and overcomes the defects of an existing packaging box.

The invention discloses a pneumatic hydraulic corrugated pipe annular combination type wear-resisting ball valve, and belongs to inventions and creations in the aspect of special ball valves. The novel valve is developed to solve the prominent problems that a lock hopper valve and a lock slag valve used in an existing coal chemical industry device and a silicon powder valve of a polycrystalline silicon device are unstable in operation, short in service life and the like. According to the pneumatic hydraulic corrugated pipe annular combination type wear-resisting ball valve, each of an inner cavity of a left valve body and an inner cavity of a right valve body is provided with an annular multi-corrugated-pipe combined hydraulic pusher and a hydraulic sealing valve seat, each valve seat is designed to be a movable contact spherical surface and controls sealing through hydraulic pressure, in the rotation process of a ball body, friction is not generated between valve seat sealing rings and the spherical surfaces, only when the valve is closed, the sealing rings and the spherical surfaces are closed to form reliable sealing, and therefore, the service life of the valve is reliably guaranteed, and the valve opening and closing torque is small, so that operation is time-saving and labor-saving.

A portable ultrasonic open channel water level automatic tracking and flow measuring device is made of European standard aluminum profiles, a liquid level ultrasonic sensor is installed at the top endof the device to measure the water level height of an open channel, a double-axis linear guide rail mechanical aluminum profile is arranged in a guide rail, and a supporting rod is fixedly connectedwith the guide rail through a fixing base plate. A sliding block and a screw rod are mounted on the built-in double-axis linear guide rail; the sliding block is connected with a steering engine, the sliding block and the steering engine are driven by a stepping motor arranged on the lead screw to slide up and down on the lead screw, the steering engine is connected with a measuring rod and controls the rotation angle of the measuring rod, and ultrasonic probes are installed at the two ends of the measuring rod to conduct 360-degree vertical plane rotation measurement. The device is simple in structure, convenient to carry and high in measurement precision, is widely applied to flow measurement of open channels, and has important practical significance for water conservation of irrigation areas.

The invention relates to a method for preparing chicken essence from chicken breast and chicken skeleton. The method is characterized by comprising the following steps: smashing 15kg of chicken skeleton and 3kg of chicken breast by using a meat mincing machine with a pore diameter of 5mm; adding 3kg of water, uniformly stirring, heating to 55 DEG C to obtain a raw material mixed solution. The method is simple to operate; the raw materials are convenient to get; the ratio of the chicken breast and the chicken skeleton in the raw materials is changed; a manner of carrying out enzymolysis and aftertreatment by using targeted compound enzymes is adopted; the defects of enzymolysis of single substrate are solved; the prepared chicken essence is light in chicken flavor; the production cost is reduced.

The invention discloses a book box push-pull module assembly and a manual push-pull book taking vertical bookshelf, and belongs to the technical field of bookshelves. According to the book box push-pull module assembly and the manual push-pull book taking vertical bookshelf, the book boxes are designed in a modular mode, flexible assembly design can be conducted according to the size and space requirements of the bookshelf, the bookshelf is more flexible and convenient to use, reasonable arrangement of the bookshelf is facilitated, and the book box push-pull module assembly and the manual push-pull book taking vertical bookshelf are particularly suitable for libraries with numerous books; moreover, the book box push-pull module assembly adopts a push rod to control a the shear type telescopic mechanism to drive a book box to be pushed out and moved, so that the books needing to be taken out can move forwards by a certain distance, readers can take the books conveniently, and meanwhile,the independent book box facilitates in-situ return of the books and unified management and consultation of the books, and the book box push-pull module assembly is simple and ingenious in structuraldesign, easy and convenient to operate, low in manufacturing cost and very good in practicability, and the defects of a traditional bookshelf are overcome.

The invention relates to an aeroponic device for Chinese chives. The Chinese chive aeroponic aim can be effectively achieved. According to the technical scheme, a modularization culturing frame comprises at least one culturing unit; each culturing unit comprises vertically-arranged supporting legs, an upper frame arranged at the tops of the supporting legs and a lower frame arranged at the lower portions of the supporting legs, wherein a seedling disc is installed on the upper frame and is of a hollow structure with an opening in the upper portion, planting holes for growing Chinese chive root systems to pass through are formed in the bottom face of the seedling disc, culturing space defined by PEP agricultural black-white films is formed below the planting holes, and high-pressure fine mist spraying heads extend into the culturing space. By means of the aeroponic device, cost is reduced, the advantages in the aspect of improving plant culturing efficiency are more obvious, the defects that the traditional nutrient-solution-type Chinese chive culturing technology is high in difficulty and investment cost are overcome, and water-fertilizer integration in the true sense is achieved; Chinese chive root systems are well developed, the yield is increased by more than 10 times, and the aeroponic device has the advantages of being low in investment, rapid in desired-result producing, high in earning and the like.

The invention discloses a road crossing device for power grid construction. The road crossing device comprises vertical insulating members, vertical supporting members, an insulating crossbeam and wire passing wheels. Each side of the road crossing device comprises at least one vertical insulating member which is vertically overlapped and supported on the corresponding vertical supporting member. The tops of the vertical insulating members on two sides are connected through the insulating crossbeam. The wire passing wheels are mounted at the top of the insulating crossbeam. The vertical insulating members and the insulating crossbeam are formed by assembly of fiberglass epoxy resin tubes filled with foam inside. The vertical insulating members and the insulating crossbeam are formed by assembly of the fiberglass epoxy resin tubes filled with the foam inside, so that the defects of conventional materials such as moso bamboos, China firs and steel tubes in current crossing construction are overcome; new portable high-strength insulating materials are adopted, the weight is reduced to the greatest extent on the condition that strength requirements are met, and accordingly, transporting and mounting under bad conditions are facilitated.

The invention provides a method for returning a transfusion tube by simultaneously and correspondingly accepting pressure at two sides, belonging to the technical field of medical equipment. The transfusion tube comprises a spring plate which is jacked at the front side face of the transfusion tube and 12 shifting fork plates which slide in a slide way of the shell of a pump head to form a sine curve to extrude the back side face of the transfusion tube; the two sides of the transfusion tube among every two shifting fork plates are jointly provided with 22 returning pressure points which are arranged on the shell of the pump head to apply equal pressures to the two sides of the transfusion tube, wherein the pressure is equal to 0-0.7MPa, is in inverse proportion to the pressure of each shifting fork plate, and changes along with the pressure of the former adjoining shifting fork plate; when the pressure of each shifting fork plate is changed, the returning pressure points apply the equal pressures to the two side faces of the transfusion tube, wherein the pressures have inverse direction and are corresponding to each other; the dynamic process that the two side faces of the transfusion tube can simultaneously receive the continuously-changed sine curve pressure is formed; and the dynamic process that the two side faces of the transfusion tube can timely obtain the sine curve pressure is formed when the transfusion tube receives the pressures of the shifting fork plates, so that the transfusion tube can be timely returned and can not be fatigued. The transfusion tube can be used for transfusion and can be returned.

The invention belongs to the field of kitchen decoration construction, and relates to an integrated cupboard combination structure, in particular to a stable environment-friendly easy-to-use integrated cupboard which comprises a wall-hung cupboard fixed on a kitchen wall body, a floor cupboard placed against the kitchen wall body, an operation desk mounted on the floor cupboard, and a kitchen wall mounted on the surface of the kitchen wall body, and is characterized in that the operation desk comprises a vegetable washing region operation desk, a cutting region operation desk and a cooking region operation desk; the vegetable washing region operation desk, the cutting region operation desk and the cooking region operation desk are different in desk height or are distributed alternately according to different heights; a wall-hung cupboard brim is arranged at the top of the wall-hung cupboard and is used for supplying support tension force to the wall-hung cupboard in a vertical direction of the top of the wall-hung cupboard. The kitchen wall and the operation desk are obtained by splicing solid wood toothing plates, so that the stable environment-friendly easy-to-use integrated cupboard is smooth, firm and durable; the phenomenon that oil dirt is stacked in large gaps is eliminated, so that the stable environment-friendly easy-to-use integrated cupboard is easy to clear and clean; the invention solves drawbacks of the conventional cupboard from many aspects, provides a better and durable integrated cupboard for a kitchen, and has good market value.

The invention discloses an intelligent network card firmware refreshing method and device and a computer readable storage medium. The method is applied to a refreshing tool machine supporting PCIE hotplug, and comprises the following steps: when an intelligent network card is detected, automatically obtaining the number of network ports and a network card firmware version of the intelligent network card of which the current hot plug state is a closed state; determining the refresh mode of the intelligent network card according to the number of the network ports, the firmware version of the network card and preset standard parameter information, wherein the refresh mode comprises needing refresh and not needing refresh; if the refreshing mode is to be refreshed, automatically starting thehot plug of the intelligent network card after the firmware version is refreshed; and if the refresh mode is not required to be refreshed, automatically triggering the hot plug state of the intelligent network card to be an on state, and therefore, the defect problem existing in an existing intelligent network card firmware refreshing mode is effectively solved, and the production efficiency of the server is improved.

The invention relates to a deep soil layering sampling device for soil survey and sampling. The device comprises a power component, a connecting member and a soil sampling member, wherein the soil sampling member is detachably connected at the lower end of the connecting member, and inside of the soil removing member is a hollow structure used for loading soil; the power member is detachably coupled to the upper end of the connecting member and applies power to the soil sampling member through the connecting member, thereby causing the soil sampling member to descend to a desired position in the soil to obtain a soil sample of a corresponding depth level; and a trench for facilitating the removal of soil inside is provided on the side wall of the soil sampling member. The invention has thebeneficial effects of developing a portable semi-automatic dynamic deep soil layering sampling device, which can completely acquire the soil profile layer, is suitable for deep soil sampling of soilunder various environmental conditions, and can perform quantitative treatment on sampling depth and soil quantity, thereby reducing the labor intensity, improving the accuracy and efficiency of soilsampling, and effectively solving the shortcomings of existing soil sampling methods and soil sampling devices.

The invention discloses a high-frequency discharge storage battery internal resistance online detection method. A detection system comprises a storage battery and a controller; the storage battery isconnected with an ADC sampling circuit; and two ends of the storage battery are connected with a discharge loop. The on-line detection method comprises the steps of: sampling voltage and recording waveform; turning on a discharge loop; adjusting a control switch S2 to discharge; obtaining discharge sampling result data; executing an internal resistance analysis algorithm; and obtaining an internalresistance analysis result. The method is brand new and efficient. The defects of a traditional internal resistance measurement method are overcome; irreversible damage to the battery caused by large-current discharge is avoided; measurement errors caused by electromotive force change of the storage battery in a discharge method are avoided; noise interference of part of a charger is eliminated,and online detection is realized; the difficulty of the real-time detection of the internal resistance of the storage battery is overcome; and the continuous real-time measurement of the internal resistance of the storage battery is realized.

The embodiment of the invention discloses an assembly type building based stair embedded part automatic generation method, device and equipment as well as a computer readable storage medium, wherein the method comprises the following steps of positioning a circle center position of a pin key reserved hole by setting a distance between a circle center of the pin key reserved hole and a flat plate section side and a distance between the circle center of the pin key reserved hole and a horizontal edge far away from the stair gravity center in advance, determining the position of the pin key reserved hole by presetting a diameter of the pin key reserved hole and the thickness of a flat plate section, then producing a U-shaped structure by taking a preset parameter as an arc length and a presetheight as a perpendicular line section length between the two endpoints of the arc length along in a thickness direction of the flat plate section, moving the U-shaped structure to a preset embeddingdistance thereof from the surface of the flat plate section, and thus automatically generating a pin key reinforcing rib of the pin key reserved hole in the stair BIM (Building Information Modeling)map. The application greatly improves the efficiency of arranging the pin key reserved hole of a stair in a stair component, improves the arrangement accuracy of a stair embedded part and thus is beneficial to improving the construction efficiency and the construction accuracy of the whole building project engineering.