38results about How to "Work fast" patented technology

The invention relates to a depth adaptive video-splicing method, a device and a system thereof. The depth adaptive video-splicing system comprises a camera array, a calibration device, a video-splicing device, a pixel interpolation device and a mixer, wherein a plurality of source videos are generated by the camera array; the calibration device executes antipodal calibration and camera position calibration, confirms a splicing area in each special adjacent image pair in a plurality of source videos and generates a pixel index table; the video-splicing device calculates an average pixel deviation value corresponding to the depth, forms a compensation item of the pixel index table based on the average pixel deviation value and compensates the pixel index table by the compensation item; and the pixel interpolation device and the mixer use the upgraded pixel index table and generate a panoramic video according to a plurality of source videos.

An intelligent trolley for saving and taking books in a library comprises a trolley body with a book saving drawer; an engine and a hydraulic oil tank are arranged in the trolley body; a manipulator is connected to the top of the trolley body through a mechanical arm; the mechanical arm comprises three stages of telescopic arms; the first stage of telescopic arm is connected with the top of the trolley body and one end of the second stage of telescopic arm; the other end of the second stage of telescopic arm is connected with one end of the last stage of telescopic arm; the other end of the last stage of telescopic arm is connected with the manipulator; the engine and the hydraulic oil tank are connected with a PLC (Programmable Logic Controller); a book bar code scanner connected with the PLC is mounted on the manipulator. The intelligent trolley can work uninterruptedly, the shelving speed is high, and no error occurs.

Techniques for tracking residual frequency error and phase noise in OFDM systems are provided. At the receiver, each received OFDM symbol is transformed using an FFT to obtain a received modulation symbol, which is serialized. A phase locked loop operates on the serialized receive modulation symbols and provides an independent phase correction value for each receive modulation symbol. Each received modulation symbol is corrected with its own phase correction value to obtain a phase corrected symbol. The phase error in each phase correction symbol is detected to obtain a phase error estimate for that phase correction symbol. The phase error estimate for each phase correction symbol is filtered (eg, with a second order loop filter) to obtain a frequency error estimate, which is accumulated to obtain a phase correction value for another received modulation symbol. Since independent phase correction values ​​are used for the received modulation symbols, the phase correction symbols are not correlated.

The invention discloses a feeding and blanking mechanism of rotor winding machine which belongs to a technical field of machine. The feeding and blanking mechanism of rotor winding machine has the advantages of solving the technical problems of higher risks and low efficiency of manual feeding and blanking of existing feeding and blanking mechanism. The feeding and blanking mechanism comprises a rack provided with a clamping part, straight sliding rail, a rotor plate, an actuator one and an actuator two. The straight sliding rail is provided with a sliding block capable of sliding in the straight sliding rail. The sliding block is provided with a feeding rotor housing and a blanking housing. The actuator two is fixedly disposed on the rack. The actuator one is disposed above the actuator two and the actuator two is capable of driving the actuator one slide up and down along the vertical direction. The rotor plate is disposed on the actuator one and the actuator one is capable of driving the rotor plate move in horizontal direction. The rotor plate is provided with paws. The paws are disposed above the feeding rotor housing and the clamping part respectively in the front and back of the rotor plate. The feeding and blanking mechanism of rotor winding machine has the advantages of having high operating speed, high efficiency,a fixed rotation angle, accurate feeding and blanking and high stability.

The invention relates to a chaotic signal generating circuit, comprising a microcontroller, a signal isolating circuit, three D / A switching circuits; each D / A switching circuit comprises 16-bit shift registers and 16-bit DAC registers and shift registers in each D / A switching circuit are connected in series to form a 48-bit shift register. Serial digital signals output by an SPI interface of the microcontroller are transmitted to a serial data input terminal of a first D / A switching circuit through the signal isolating circuit; clock signals and latch control signals output by the SPI interface are respectively transmitted to a clock input terminal and a latch control signal input terminal of the D / A switching circuit through the signal isolating circuit. In the invention, based on the chaotic circuit of the microcontroller, the Euler algorithm is adopted to carry out discretization processing on the continuous state equation of the improved generalized Lorenz system; as a result, the operation algorithm which can be appropriately realized by the microcontroller is established and folding directions of chaotic attractors and system operation modes are optional.

The invention discloses an all-optical logic gate device based on nanowire waveguides of a multislot silicon substrate, which is characterized by comprising two input waveguides, two output waveguides, first mode converters (51), a nonlinear directional coupler (6) and second mode converters (52). The input waveguides include a first input waveguide (1) and a second input waveguide (2) and are used for inputting signal optical pulses and controlling the optical pulses, the output waveguides include a first output waveguide (3) and a second output waveguide (4), the first input waveguide (1) and the second input waveguide (2) are respectively connected with the nonlinear directional coupler (6) by the first mode converters (51), and the nonlinear directional coupler (6) is respectively connected with the first output waveguide (3) and the second output waveguide (4) by the second mode converters (52). The all-optical logic gate device has the advantages of easiness in implementation, fast working speed, low power consumption, compact structure, cheap price and the like.

The invention discloses a recyclable textile machinery winding cylinder which comprises a winding cylinder body. A rotating shaft is arranged in the winding cylinder body, and a plurality of springs are fixedly arranged on the rotating shaft. A baffle ring is arranged at one end of the winding cylinder body, and a first end cover is arranged on one side of the baffle ring. The rotating shaft is rotatably connected with a motor shaft of a driving motor through a coupling. The other end of the winding cylinder body is movably connected with a movable ring, and a second end cover is arranged on one side of the movable ring. Antistatic layers are arranged on the inner sides of the baffle ring and the movable ring correspondingly, a T-shaped block is fixedly arranged on the inner side of the movable ring, a magnetic layer is fixedly arranged on one side of the bottom of the T-shaped block, and a long-strip-shaped sliding groove is formed in the winding cylinder body. The movable ring and the baffle ring are arranged; through scale lines on the outer side of the winding cylinder body and moving of the movable ring, the using position of the winding cylinder body is adjusted; the baffle ring prevents a spinning thread from being deflected, and winding regularity is guaranteed; and the winding cylinder is simple structure, regular in winding, high in work rate, and capable of being recycled.

The invention discloses a corn straw harvesting and crushing combination machine, which is composed of a machine box, a grain lifter arranged in front of the machine box, harvesting shears, a feeding mechanism, a crushing mechanism and a throwing air blower which are arranged in the machine box, a power transmission mechanism arranged on the machine box and a lifting mechanism connected with a tractor. Corn straws are harvested by the harvesting shears and are crushed by the crushing mechanism after passing through the feeding mechanism; the crushed straws are discharged into a hopper by the throwing air blower. The invention solves the problem that the corn straws can not be harvested, crushed and collected at the same time, and belongs to a novel agricultural combination machine. The corn straw harvesting and crushing combination machine has high work speed and high efficiency and does not delay the farming season.

The invention relates to a formation liquid storage tank of quantitative acid dosing and charging of a battery, comprising an acid filling nozzle on an acid filling machine and the battery. The invention is characterized in that: a liquid storage structure is arranged between the acid filling nozzle and the battery. The acid filling nozzle is connected with an acid feeding nozzle at the upper part of the liquid storage tank when in filling acid; the liquid storage tank comprises at least one tank body. The tank bodies are distributed in a shape of a horizontal line or are arranged by two lines or multiple lines and connected together; the upper end of the tank body is provided with the acid feeding nozzle; and the lower end of the edge part of the tank body is fixedly bonded with the upper end of a bottom platform. The bottom part of the bottom platform is a liquid-leaking boss with the shape of a hopper; and the mouth of the liquid-leaking boss is connected with a rubber nozzle in an inserting mode. The invention has fast working speed, low fault rate, precise quantization and no liquid leakage, can solve the technical difficulty needing secondary liquid supplementation by once quantization after adding the liquid storage tank on the upper part of the battery, and simultaneously improves the quality of the battery.

The invention provides a voltage buffer circuit and a circuit including the voltage buffer circuit to be used for driving loads to be switched along with the time sequence. The voltage buffer circuit is used for driving loads and at least comprises a differential input stage, an output stage and a bias module. The voltage buffer circuit is capable of switching drive capacity provided for the loads rapidly, small in power consumption and fast in work speed; the high driving current can be provided when large loads are needed to be driven, the low driving current is provided when large loads are not needed to be driven, the bias module maintains a high current branch in the output stage at a cut-off critical point, and accordingly, the output stage static current is reduced greatly. Meanwhile, the large current branch in the output stage is not cut off completely, so that the large current branch can be connected rapidly when the high driving current is needed, and the circuit switching speed and the reference voltage stability are improved.

A kind of transistor level shift circuit is composed of P type metal-oxide semiconductor thin film transistor. The transistor level shift circuit concludes a switching circuit, a first amplification circuit and a secondary amplification circuit. The circuit structure is simple. The number of transistor is small. Thus, it can work quickly and efficiently under heavy load.

The invention provides a control method and system for automatic acquisition of a wide-area electromagnetic method, and relates to the technical field of electromagnetic sounding. A wide-area electromagnetic method automatic acquisition control parameter generation device is used for controlling a wide-area electromagnetic transmitting device and a wide-area electromagnetic receiving device to automatically transmit and receive, exploration data are collected, and automatic acquisition and control are completed. The method and the system can be used for ground controllable source detection, intervention of professional instrument operators is not needed during field exploration, the instrument can automatically collect controllable source time domain data needed by exploration, the collection efficiency is high, the working speed is high, exploration constraints are automatically standardized, and the cost is greatly reduced.

The invention discloses a device of superstrong path choosing process in WCDMA system, it can be used in process of superstrong path which is in ADP value of mission window wide phase point in multi path management of WCDMA system, it includes: the ADP value of mission window wide phase point can be calculated by searcher; whether is there superstrong path can be checked by the superstrong path choosing arithmetic, if there is superstrong path, the superstrong path is filtered by special filter coefficient, the result which is filtered is placed to the candidate path result, other ADP value is placed into the candidate path result for later process. The invention realizes the stability which can guarantee the multi path search, decreases the void alarm, at the same time the hardware is easy to realize, the consumption of hardware is few, the work efficiency is quick.

The invention discloses a method for evaluating the operation and maintenance level of a wind power plant, and the method comprises the following steps: 1), constructing the design parameter information table of all fans in the wind power plant, and obtaining the wind speed and air density of an environment where each fan is located in a statistical time period and the historical data of the state of each fan; 2), calculating the wind power in the statistical time period; 3), obtaining the time information of usable states of all fans in the statistical time period; 4), calculating corresponding usable wind energy when all fans are in usable states in the statistical time period; 5), calculating the total wind energy of all fans in the statistical time period; 6), calculating the energy utilization rate index EAF of each fan; 7), calculating the energy utilization rate index EAFs of the wind power plant; 8), obtaining the operation and maintenance level of the wind power plant according to the energy utilization rate index EAFs of the wind power plant at step 7). The method can accurately evaluate the operation and maintenance level of the wind power plant.

The invention discloses an efficient pipe cutting machine for machining. The efficient pipe cutting machine comprises a driver, a rotating shaft, a casing, a line box, a moving pulley and a protection cover, wherein the driver is connected with a rotator, a driving motor is installed on the rotator, a top plate is fixed below the driving motor, a workbench is arranged on the right side of the driving motor, the casing is connected with the top plate, a processor is fixed below the rotator, a regulator is installed on the right side of the line box, an operating panel is fixed to the outer side of the casing, an operating handle is installed on a cutting disc, and the moving pulley is connected with the casing. The efficient pipe cutting machine for machining has the advantages of small size and high working efficiency and working speed and is provided with the protection cover, so that the safety of operating personnel can be preferably guaranteed; the cutting disc is made of good materials and is difficult to wear and damage, so that a pipe can be preferably cut, and the production development rate is increased.

The invention discloses a forming die for machining a high-temperature-resistant double-lattice aluminum foil box, and relates to the technical field of forming dies. The punching device specifically comprises a supporting seat, a mounting frame is fixedly connected to one side of the top end of the supporting seat, a punching air cylinder is fixedly mounted at the top end of the mounting frame, supporting assemblies are fixedly mounted on the two sides of the supporting seat correspondingly, and a first driving seat is fixedly mounted on one side of one supporting assembly; a second driving base is fixedly installed on one side of the other supporting assembly, and a material plate conveying assembly is arranged at the top end of the supporting base. The die assembly comprises a male die, a plurality of guide rods are installed at the bottom end of the male die in a sliding mode, and the bottom ends of the guide rods are fixedly connected with a female die. According to the forming mold for machining the double-grid aluminum foil box, automatic demolding of the formed aluminum foil box is achieved through the material plate conveying assembly, the mechanical arm is matched with the material plate conveying assembly to take down the aluminum foil box and replace the aluminum foil box material plate, the whole-process working speed is high, and the machining efficiency is improved.

The invention discloses a potato chip machine. The potato chip machine structurally comprises a machine body, a motor, a rotating shaft, a cutter head, blades and feeding hoppers. The machine body isof a drum-shaped structure. The motor is arranged above the machine body, and the rotating shaft is arranged beneath the motor. The rotating shaft is driven by the motor. The lower end of the rotatingshaft stretches into the machine body. The cutter head is arranged at the lower end of the rotating shaft and is of a disk-shaped structure. Eccentric slotted holes in the radial direction are formedin the cutter head, and the upper surface and the lower surface of the cutter head are made through due to the slotted holes. The number of the circular symmetry slotted holes is two. Each slotted hole is internally provided with one blade, and cutting edges of the blades extend out of the upper opening portions of the corresponding slotted holes. The machine body is provided with the feeding hoppers. Lower end outlets of the feeding hoppers are located above the peripheries of the slotted holes. The number of the circular symmetry feeding hoppers is two. The potato chip machine has the beneficial effects that the blades on the cutter head can quickly cut potatoes leaking from the feeding hoppers into potato chips through the high-speed rotating cutter head closed inside the machine body,and therefore the operating speed of the potato chip machine is high and operation is convenient and safe.

A one-side cantilever linear motor direct-driven feeding device for a cover stamping line comprises a support plate. A linear guide rail is installed on the support plate, a slider matched with the linear guide rail is installed on a movable mount, an electric cylinder is hinged to the movable mount, and a piston rod of the electric cylinder is connected with a fixed rod hinged with a bent rod. The middle of the bent rod is hinged to the support rod mounted on the movable mount, the other end of the bent rod is hinged with a side link, and the other end of the side link is hinged with a workpiece pickup support connected with the movable mount through a guide pillar sleeve. Adjustable suckers are mounted on the workpiece pickup support. A linear motor stator is mounted on the support plate, and a linear motor rotor matched with the linear motor stator is mounted on the movable mount. The electric cylinder acts to drive the adjustable suckers on the workpiece pickup support to pick up or arrange workpieces. The one-side cantilever linear motor direct-driven feeding device has the advantages of simplicity in motion structure, quick action, high applicability and the like.

The invention discloses a compound insecticide containing emamectin benzoate and diafenthiuron. The weight of the emamectin benzoate and the diafenthiuron accounts for 10-55wt% of the total weight, and a weight ratio of the emamectin benzoate to the diafenthiuron is (0.5-5) to (10-50). The compound insecticide disclosed by the invention is simple in production process and safe to use, cannot cause pollution to the environment, is low in toxicity and high in efficiency, also cannot cause harms to beneficial insects in use, can be used for expanding insecticidal spectrums, and can be used for significantly improving the fast-acting performance of medicines by virtue of the compounding of two medicaments, namely the emamectin benzoate and the diafenthiuron.

The invention discloses a sand screening machine. The sand screening machine comprises a feed port, fixing rods, vertical columns, motors, a residue outlet, a base, a fine sand conveying belt, fixing bolts, a rotating shaft and a filtering net barrel, wherein the fixing rods are connected to the outer side of the feed port, the vertical columns are connected to the front surface and the back surface of the feed port, the base is connected to the lower parts of the vertical columns, the fixing bolts are arranged on the front surfaces of the vertical columns, the fine sand conveying belt is arranged above the base, the filtering net barrel is arranged above the fine sand conveying belt, the motors are arranged on two sides of the filtering net barrel, and the residue outlet is formed in the bottom of the filtering net barrel. According to the sand screening machine, manual operation is not needed, the filtering net barrel has the preheating function, operation is simple, the working speed is high, and the working effect is good.

The invention discloses a crack recognizing device based on bridge images. The crack recognizing device based on bridge images comprises a camera, a display screen, a push rod, an oblique rod, a vertical rod, a roller, an alarming lamp, an adjusting box, an operation table, a numerically controlled box, a control module, an intelligent alarming module, an image processing module, a data transmission module and a crack recognizing module. The crack recognizing device based on bridge images has the beneficial effects that the crack recognizing device based on bridge images is provided with the alarming lamp, when the inside of the device has running faults, an alarming sound can be made in time under the regulation and control of the intelligent alarming module, thus, the device can be repaired and treated favorably in the first time, the camera can capture images of a bridge with cracks in all directions, the captured images are treated by the various modules in the numerically controlled box, and obtained data are displayed on the display screen. In addition, the device is provided with the push rod and the roller, movement of the device is facilitated, the time and labor are saved, the recognition precision is high, the working speed is also high, and the images can be treated clearly.

The invention discloses a bridge crack recognizing device based on cameras and a linear laser device. The bridge crack recognizing device comprises a lifting rod, cameras, an illuminating lamp, a numerical control tank, a mounting table, a support frame, the linear laser device, a telescope, a side plate, a display screen, a USB interface, a driving module, a detection module, an illuminating module, a control module, an image module and an auxiliary module. The bridge crack recognizing device has the beneficial effects that by arranging the telescope, a bridge can be remotely observed, and abasis for judging whether the bridge is cracked is provided for a worker; meanwhile, cracks formed in the bridge are captured by virtue of the camera and the linear laser device and are processed by the modules in the numerical control tank, and obtained data and images are displayed on the display screen; and the bridge crack recognizing device is high in recognizing precision and high in workingspeed, the images can be clearly processed, accurate data can be obtained, the removable storage of the data is realized, the judgment effect is strong, and the device can be charged and can be usedat night.

The invention discloses an all-optical logic gate device based on nanowire waveguides of a multislot silicon substrate, which is characterized by comprising two input waveguides, two output waveguides, first mode converters (51), a nonlinear directional coupler (6) and second mode converters (52). The input waveguides include a first input waveguide (1) and a second input waveguide (2) and are used for inputting signal optical pulses and controlling the optical pulses, the output waveguides include a first output waveguide (3) and a second output waveguide (4), the first input waveguide (1) and the second input waveguide (2) are respectively connected with the nonlinear directional coupler (6) by the first mode converters (51), and the nonlinear directional coupler (6) is respectively connected with the first output waveguide (3) and the second output waveguide (4) by the second mode converters (52). The all-optical logic gate device has the advantages of easiness in implementation, fast working speed, low power consumption, compact structure, cheap price and the like.

The invention provides a test pipe fitting axial pretreatment operation platform. The test pipe fitting axial pretreatment operation platform comprises a working frame, an axial surveying and mappingdevice, wherein the axial surveying and mapping device is installed on the working frame and comprises an axial fixing frame for fixing a test pipe fitting, a measuring ruler for measuring the axial length of the test pipe fitting and a line drawing frame for drawing axial marks on the test pipe fitting; and a temporary placing device, wherein the temporary placing device is used for placing the test pipe fitting which is not used temporarily or is subjected to partial pretreatment operation. According to the test pipe fitting axial pretreatment operation platform, the axial measurement and drawing functions of the test pipe fitting are integrated on one working frame, the drawing work of the axial contour line of the outer surface of the test pipe fitting is completed by carrying out axial measurement, axial point drawing and line drawing operation on the test pipe fitting, and the process of drawing the axial contour line of the outer surface of the test pipe fitting is realized, andthe axial pretreatment work of the test pipe fitting is rapid and efficient; and through a plurality of fixing and locking devices, the accuracy of axial measuring, point drawing and line drawing ofthe test pipe fitting is determined.

The invention relates to a digital phase discriminator based on a finite-state machine, and the digital phase discriminator comprises a first synchronous circuit, a second synchronous circuit, a state machine, an add-subtract counter and a storage circuit; the first synchronous circuit, the second synchronous circuit and the storage circuit are connected to the input end of the state machine; the add-subtract counter and the storage circuit are connected with the output end of the state machine, and the add-subtract counter is connected with the storage circuit. According to the phase discriminator, signal synchronization processing is carried out on the input signal input by the first synchronous circuit and the feedback signal input by the second synchronous circuit through the first synchronous circuit and the second synchronous circuit, so that the influence of a metastable state condition on an output result of the phase discriminator is avoided; then, under the control of a state machine, corresponding addition or subtraction processing is performed according to different input conditions; and finally, data storage and output are completed through a storage circuit. Through the operation, the output time of the phase discriminator can be effectively shortened, and the power consumption is reduced.

The invention relates to a full-automatic pin insertion device of a fan stator, the fan stator has opposite first and second side faces, and has a first placement direction and a second placement direction perpendicular to each other, the first side face is provided with a pinhole, the full-automatic pin insertion device comprises a pin insertion machine, a supply mechanism for an orderly supply of a fan stator to a pin insertion machine, the supply mechanism comprises a rack, a feed hopper arranged on the rack for storing fan stators in batches, a surface fixing mechanism arranged on the rackfor fixing the fan stators on the first side in sequence, and an orientation mechanism arranged on the rack for directing the fan stators in the first placement direction in sequence. The fully automatic pin insertion device of the fan stator of the invention avoids putting the fan stator into the pin insertion machine with a correct posture after checking one by one manually in the prior art, avoids the expenditure of labor cost, also enables the pin insertion machine to work more quickly, and greatly improves the working efficiency.

Provided is a stainless steel gas-clad ring main unit comprising an instrument door, a load switch, a circular arc-shaped air bag, a mounting framework and a current transformer, wherein the load switch is arranged at the upper end of the inside of an outer shell, a middle partition plate is arranged on the lower surface of the load switch, the circular arc-shaped air bag is arranged at the position, close to the middle position of the outer shell, under the middle partition plate, the mounting framework is arranged on the rear surface of the stainless steel circular arc-shaped air bag shell,and the current transformer is installed at the bottom end of the inside of the outer shell. The ring main unit is simple to operate, rapid in work, and comprehensive in function, the arranged arc-shaped air bag has the buffering function, due to the arc-shaped design, the electromagnetic field is improved, the load switch in the ring main unit is not easy to damage, so that the service life of the ring main unit is long; and moreover, the stainless steel circular arc-shaped air bag shell is arranged, the arc-shaped air bag can be well protected, the arc-shaped air bag is prevented from beingdamaged easily, and time and labor for maintenance are saved.

The invention belongs to the technical field of manufacture or processing of semiconductor devices, and discloses a semiconductor graphene, a preparation method thereof, and a field effect tube. The semiconductor graphene is directly grown on the Si surface of a silicon carbide substrate as a buffer layer, and the semiconductor graphene is Monolayer and uniform growth, the crystal domain width is 50-200μm, and the length is on the order of millimeters; the preparation method is to mechanically and chemically polish two 6H-type and / or 4H-type silicon carbide wafers, ultrasonically clean and dry them; one of them is coated with Apply photoresist; two silicon carbide wafers are placed in a graphite crucible and placed in a "face-to-face" form; first heated in a vacuum environment and then heated in two steps under an argon atmosphere; the obtained semiconductor graphene is used as a groove The materials can be used to prepare field effect transistors. The invention can directly grow single-layer semiconducting graphene on the insulating substrate, the crystal domain area is large, and the switching ratio of the field effect transistor prepared by using the semiconducting graphene reaches 10 4 , to meet the needs of practical applications.

The present invention relates to a paint composition and a reflective plate for a screen, comprising a coating layer of the same and, more specifically, to a paint composition, which is capable of enabling spray coating to increase the work process rate, allowing mass production and low-price production of coating articles, being applied to large-sized articles, showing a high reflectance comparedwith the level of deposition, realizing a relatively high contrast ratio compared with the deposition, and attaining a coating film with excellent flexibility and adhesiveness, and to a reflective plate for a screen, comprising a coating layer of the same.

The invention discloses a porcelain insulator cementing maintenance device which comprises a bottom plate, wherein a first box body is fixedly connected to the upper surface of the bottom plate, a motor is installed on the inner bottom wall of the first box body, an output shaft of the motor penetrates through the inner side wall of the first box body, and a first shell is fixedly connected to theupper surface of the first box body. An output shaft of the motor is fixedly connected to one ends of the first connecting rods, second shells are evenly and fixedly connected to the outer side wallsof the first shells, and four second connecting rods are rotatably connected to the bottom walls of the interiors of the second shells through second bearings. After the porcelain insulators are limited and fixed, a user can start a motor, an output shaft of the motor can drive the multiple porcelain insulators to rotate, meanwhile, a second electric push rod can evenly smear cementing materialson the surfaces of the porcelain insulators through a scraper blade, workers can use the cementing materials conveniently, the working speed of a cementing line is high, the working efficiency is high, and the cost is low.