85results about How to "Efficient working state" patented technology

The invention discloses a transformer winding state diagnosis method. The method comprises the following steps: (1) a vibration signal of each measurement point of a transformer winding is acquired; (2) fourier transform is performed on the vibration signal to obtain a vibration frequency response curve of the transformer winding; (3) fourier inversion is performed on the vibration frequency response curve to obtain a free vibration signal of the transformer winding; (4) wavelet transform is performed on the free vibration signal with Morlet wavelets; (5) a wavelet transform time-frequency diagram is formed; (6) wavelet ridges of the wavelet transform time-frequency diagram are extracted, wherein the vertical coordinate of each wavelet ridge is the inherent frequency of the transformer winding; (7) and the state of the transformer winding is judged according to the change of the inherent frequency.

The invention provides a method for automatically controlling the number of chat windows in a chat tool. The method is characterized by comprising the following steps: Step a: obtaining indication information of a terminal where the chat tool is located according to preset conditions; Step b: judging whether the preset conditions for the active control over the chatting windows are met; and Step c: if so, selecting windows with first number from the chat windows and closing. Additionally, the invention further provides a control device for automatically controlling the number of chat windows in the chat tool. According to the invention, the number of the chat windows is controlled according to different preset conditions, and when the preset conditions are met, certain chat windows are automatically closed. Therefore, the time spent for the closing of chat windows one by one can be saved, and a computer can be protected well, so as to always work efficiently and avoid halt conditions and the like caused by a condition that too many chat windows are opened.

The invention discloses a method for diagnosing operating state of windings in short-circuiting of a transformer. The method includes the steps of firstly, acquiring a vibration signal of a box wall of the transformer when the short-circuiting of the transformer occurs; secondly, pre-continuing left and right ends of the vibration signal; thirdly, decomposing the continued vibration signal into a plurality of intrinsic-mode function components; fourthly, subjecting all the intrinsic-mode function components obtained by decomposing to Hilbert transformation so as to obtain Hilbert spectrum of the vibration signal; fifthly, acquiring Hilbert marginal spectrum and Hilbert energy according to the Hilbert spectrum; and sixthly, judging the state of the transformer windings according to changes in the Hilbert marginal spectrum and the Hilbert energy.

The invention discloses a transformer winding operating state diagnosis method. The method includes following steps: collecting vibration signals of each testing point of a transformer winding; performing Fourier transformation to the vibration signals to obtain a vibration frequency response curve of the transformer winding; performing inverse Fourier transformation to obtain a free vibration signal of the transformer winding; decomposing the free vibration signal into a plurality of intrinsic mode function components; performing Hibert transformation to obtain Hibert transformation values of the intrinsic mode function components; constructing analytic functions corresponding to each intrinsic mode function component and corresponding Hibert transformation value, and calculating slope of a phase function corresponding to each analytic function, wherein the slopes are intrinsic frequencies of each order of the transformer winding; and judging the state of the transformer winding according to changing of the intrinsic frequencies. By the transformer winding operating state diagnosis method, the operating state of the transformer winding can be accurately and efficiently judged, problems can be found conveniently and timely to maintain a transformer.

The invention discloses a current transformer with a sensing head which comprises a giant magnetostrictive material and two fiber gratings, wherein the fiber gratings are respectively positioned at the upper surface and the lower surface of the giant magnetostrictive material and are intercrossed at different surface layers of the giant magnetostrictive material. The invention further discloses a current detection system; according to the embodiment of the invention, linear, efficient and stable working state of the giant magnetostrictive material and the fiber gratings is acquired by means of temperature compensation via two fiber gratings, and the test result is good.

The invention discloses a wet curtain cooling system for a farm. The system comprises at least one cooling and dehumidifying device, a water circulation device and a control panel; each cooling and dehumidifying device comprises a fixing frame, cooling curtains sequentially arranged on the fixing frame front and back, a foldable dehumidifying curtain parallel to the cooling curtains and a liftingmechanism for driving the dehumidifying curtain to lift and fall; the water circulation device comprises a water storage tank connected with the cooling curtains through a water supply pipe and a liquid storage tank connected with the dehumidifying curtains through a solution pipe; the liquid storage tank contains a moisture absorbent solution; the outer side of each fixing frame is provided witha humidity sensor and a temperature sensor; the control panel is in control connection with a first circulation pump arranged in the water storage tank, a second circulation pump arranged in the liquid storage tank, the lifting mechanisms, the humidity sensors and the temperature sensors separately. According to the wet curtain cooling system for the farm, through the arrangement of the cooling curtains and the dehumidifying curtains, the temperature and humidity of air are controlled, the dehumidifying curtains have the function of automatically adjusting the concentration of a dehumidifyingagent, the system is convenient to use, and the dehumidifying efficiency is high.

The invention relates to a high-efficiency cotton harvesting device, which is used for solving the problem that the cotton harvesting device is not suitable for picking in high stalk cotton fields. The technical proposal is that the high-efficiency cotton harvesting device comprises a cotton collection box and a fixed comb tooth, a rotating comb tooth mechanism and a conveying screw feeder which are positioned in the cotton collection box, wherein the rotating comb tooth mechanism consists of a rotating shaft and a rotating comb tooth, the teeth of the rotating comb tooth are evenly distributed along the rotating shaft axially, the comb tooth position of the rotating comb tooth corresponds to that of a fixed comb plate, and after improvement, the rotating comb tooth is a crescent bent hook-shaped tooth. The rotating comb tooth is designed as the hook-shaped comb tooth, thus in the rotating process, the front end of the rotating comb tooth combs off cotton gathered at the root of the fixed comb tooth from a cotton stalk so as to thoroughly separate the cotton from the cotton stalk. The high-efficiency cotton harvesting device is further provided with a comb mechanism additionally, and can continuously eliminate sundries filled in tooth gaps of the rotating comb tooth, so that the rotating comb tooth mechanism is maintained in a high-efficiency working condition.

The invention provides a metal in-situ protection device and method based on deep-sea microorganisms and sediments, and belongs to the technical field of deep-sea metal protection. The device comprises at least one microbial catalytic decomposition reaction unit, a separation and sedimentation unit and a conducting and fixing device, wherein the microbial catalytic decomposition reaction units areconnected in parallel; the microbial catalytic decomposition reaction units are connected with the separation and sedimentation unit in parallel; the conducting and fixing device comprises an outer shell fixing part and a conducting part and is used for fixing the microbial catalytic decomposition reaction units and the separation and sedimentation unit and supplying power to the units. The metalin-situ protection device is installed on the two sides of a seabed traveling mechanism in parallel, and the bottom is inserted into the sediments; the metal in-situ protection device does not need external energy supply and is free of raw material loss; when advancing, the protection device completes the self-replacement of strains and florae, and can continuously and efficiently protect seabedmetals and prolong the service life of the metals.

The invention discloses a queuing machine system with a global system for mobile communications (GSM) communication module. The queuing machine system comprises a radio frequency identification (RFID) input and touch screen queuing module, a control module, a queuing machine module, the GSM communication module, and a display and sound production module. Corresponding information of a user is recorded in an RFID card, and a mobile phone number is bound; and when the user takes a number, the card can be connected with the control module during reading, the GSM communication module is started in time, and a piece of short massage is automatically sent to remind the user. The queuing machine system with the GSM communication module takes the maximum utilization rate of time and space into consideration, can be applied to large places such as banks, hospitals, restaurants and the like, and has wide practicability and strong universality.

The invention relates to an air-blowing-feeding disc-suction type granule seed-metering device. The air-blowing-feeding disc-suction type granule seed-metering device comprises a stander, a seed conveying device, a seed sucking device and an air supply device, wherein the seed sucking device is arranged on the stander, the seed conveying device is arranged under the seed sucking device, and the air supply device is connected with the seed conveying device and the seed sucking device. According to the air-blowing-feeding disc-suction type granule seed-metering device, a seed group reaches a'boiling' state by virtue of airflow so as to be effectively separated in a seed conveying disc, and seeds are effectively taken by virtue of pressure difference; by changing the flow direction of air in a positive-pressure air supply pipe of the seed-metering device, the seeds can be circularly and alternatively used between two seed boxes, so that the use ratio of the seeds is improved, and the seed-metering device achieves a time-saving, labor-saving and efficient working state; a seed conveying pipe is in an inverted V-shape structure, and horizontal reciprocating motion of a seed sucking plate is maintained by a plate type seed sucking air chamber in an absorption seed-taking process, so that the granule seeds are conveyed in the conveying pipe in a suspension manner and are effectively separated during the seed taking; the seed-metering device is easy to operate during working.

The invention discloses a feed quantity control device and method of a sugarcane harvester. The device comprises a pressure sensor, induction blocks, Hall sensors, an electric-hydraulic proportional flow valve and a PLC. The pressure sensor is installed on an inlet of a hydraulic motor of a sugarcane pressing roller and used for collecting loading pressure signals. The induction blocks are arranged on the edges of hubs of wheels. Each Hall sensor is arranged on one side of the corresponding induction block, and the Hall sensors are used for collecting the rotation speed of the wheels through the induction blocks. The electric-hydraulic proportional flow valve is used for controlling the traveling speed of the wheels of the sugarcane harvester. The input end of the PLC is connected with the pressure sensor and the Hall sensors, the output end of the PLC is connected with the electric-hydraulic proportional flow valve, and the PLC is used for obtaining the normal rotation speed of the wheels. When the loading pressure sensors exceed a preset value, the rotation speed of the wheels is controlled to be lower than the normal rotation speed. When the loading pressure sensors lower than the preset value, the rotation speed of the wheels is controlled to be the normal rotation speed. By detecting the feed quantity and the traveling speed in real time, feedback control of the feed quantity is achieved, the situation that the feed quantity is too large and accordingly a logistics channel is blocked is avoided, and work efficiency and sugarcane cutting quality are guaranteed.

The invention relates to a method and a device for the temperature control of an RFID read / write module. The device is used for controlling the working temperature of an RFID read / write module, and comprises an intelligent power supply module, a micro processing module and a temperature sensor, wherein the intelligent power supply module is connected to the RFID read / write module by a power cord and a ground wire; the power cord is provided with a current sensor, and a voltage sensor is arranged between the power cord and the ground wire; the temperature sensor is used for detecting the working temperature value of the RFID read / write module; and the micro processing module comprehensively judges the current temperature state of the RFID read / write module based on the temperature, and control the intelligent power supply module to change the input voltage of the RFID read / write module. By detecting the working temperature and the current intensity of the RFID read / write module in real time and adjusting the working voltage control temperature of the RFID read / write module in real time, the invention ensures that the RFID read / write module is in the high-efficiency operating state all the time, thereby widening the application of the RFID read / write module.

The invention discloses a flow control method and system for an NAS gateway of a distributed file system. The method comprises the following steps: when detecting a flow request message to be receive, instead of directly receiving the flow request message, judging whether a current state of a receiving flag bit is a receivable state at first; only when the current state of the receiving flag bit is the receivable state, receiving the flow request message; otherwise, starting a timer and timing; and when the timing reaches a preset time threshold, returning to judge whether the current state of the receiving flag bit is the receivable state, so that the time of the time threshold can be reserved for processing the flow request messages which have been received, but are not processed. Therefore, the flow control method disclosed by the invention is used for effectively avoiding processing congestion, so as to locate the system in a stable and efficient working state.

The invention discloses an adaptive cruise gear-shifting control method based on a two-stage planetary line two-speed transmission. The adaptive cruise gear-shifting control method based on the two-stage planetary line two-speed transmission comprises the following steps of: step one. obtaining the speed of the vehicle, the opening degree of an accelerator, the quality of the vehicle, the speed ofa previous vehicle, and the distance between the vehicle and the previous vehicle, and determining the reference gear coefficient of the vehicle according to the speed of the vehicle, the opening degree of the accelerator, the quality of the vehicle, the speed of the previous vehicle, and the distance between the vehicle and the previous vehicle; step two. obtaining the outdoor ambient temperature, humidity, road surface adhesion coefficients and outdoor light intensity, and determining the environment coefficients of vehicle running according to the outdoor ambient temperature, humidity, road surface adhesion coefficients and outdoor light intensity; and step three. judging the appropriate gear of the vehicle at the current running state according to the reference gear index of the vehicle and the environment index of vehicle running. The adaptive cruise gear-shifting control method based on the two-stage planetary line two-speed transmission can assist a driver to determine the correct gear-shifting opportunity and keeps the vehicle in an efficient working state.

The embodiment of the invention discloses an air-source heat pump air heater and a refrigerant flow control method of an air-source heat pump air heater system. The air-source heat pump air heater comprises a compressor, a multi-way valve, a flash evaporator, an outer heat exchanger, a throttling element and at least two inner heat exchangers. The refrigerant flow control method comprises the steps that whether or not the liquid level of the flash evaporator is within a preset liquid level range is determined, if not, the refrigerant inflow rate of the flash evaporator is adjusted to make theliquid level of the flash evaporator tend to fall within the preset liquid level range, and then whether or not the liquid level of the flash evaporator is within the preset liquid level range is determined again; and whether or not the superheat degree of return air of the air-source heat pump air heater system is within a preset superheat degree range is determined, if not, the refrigerant outflow rate of the flash evaporator is adjusted to make the superheat degree of the flash evaporator tend to fall within the preset superheat degree range, and whether or not the superheat degree of return air of the air-source heat pump air heater system is within the preset superheat degree range is determined again. In this way, the air-source heat pump air heater system can work more efficiently while operating stably.

The invention provides a floor moisture wiping robot. The robot comprises a robot body, the robot body is a disc-shaped structure with a cavity, an installation frame is arranged in the middle of thebottom of the cavity of the robot body, the installation frame is of a reversed U-shaped structure, the bottom of the installation frame is fixed on the inner side of the bottom of the robot body, a first rotary motor is arranged in the middle of the inner side of the top of the installation frame, and a base of the first rotary motor is fixed on the top of the installation frame. Whether or not water exists on the floor is detected by a humidity sensor, a sponge block is driven to swing back and forth by a second rotary motor and a third rotary motor, moisture on the floor is absorbed by using the sponge block, fan blades are driven to rotate to generate cool wind by the first rotary motor, the wiped floor is blown dried, moisture seeping into the floor is completely removed, the operation is simple, the use is simple, the robot is extremely time-saving and labor-saving, and manpower is effectively saved.

The invention discloses a low-temperature plasma air disinfection device capable of automatically adjusting the intensity. The low-temperature plasma air disinfection device comprises a main control core board and a plasma disinfection bin. Parameters, such as ozone concentration, VOC indexes, temperature, humidity and PM2.5, in air are collected in real time, and control parameters, such as the optimal high voltage amplitude, frequency, the discharge spacing and the dust collection spacing and area, required by plasma disinfection are calculated according to the collected parameters. Then, regulation and control are carried out, and therefore, the disinfection device can be in an efficient working state all the time, and the disinfection device can be prevented from being in a high-energy-consumption working state for a long time. Meanwhile, the loss of the high-voltage electrode material can be intelligently judged, prompt information is sent out in time according to the loss condition of a high-voltage electrode, a worker is reminded to replace the high-voltage electrode material, and the whole plasma air disinfection device can be in a valid and efficient working state all the time.

The invention discloses a control device of a clutch. The control device comprises a mounting base, a hand wheel, a hand wheel shaft, a hand wheel pin, a control rod, a coupler and a hydraulic oil cylinder. The hydraulic oil cylinder is fixedly arranged on the mounting base, the hand wheel shaft is movably inserted into the mounting base, the hand wheel is coaxially connected to one end of the hand wheel shaft, the other end of the hand wheel shaft is coaxially connected with a piston rod of the hydraulic oil cylinder through the coupler, an external thread is arranged in the middle of the hand wheel shaft, a thread through hole stretching in the axial direction vertical to the hand wheel pin is formed in the hand wheel pin, the hand wheel shaft is sleeved with the hand wheel pin, and thehand wheel pin is in threaded connection with the middle of the hand wheel shaft. The control rod comprises a lock catch strip and a clutch shifter, the middle of the lock catch strip is hinged to themounting base, one end of the lock catch strip is fixedly connected with the clutch shifter, and the other end of the lock catch strip is rotationally connected with the hand wheel pin. The control device of the clutch has a manual working mode and a hydraulic working mode, the working modes can be easily switched, and the clutch is continuously in the efficient working states.

The invention discloses a ramp running gear-shifting control method based on a two-stage planet gear set two-speed transmission. The method comprises the steps that 1, when a vehicle runs, the runningspeed, the accelerator opening degree and the whole mass of the vehicle as well as the gradient of the road are obtained, and the reference gear coefficient of the vehicle is determined according tothe running speed, the accelerator opening degree and the whole mass of the vehicle as well as the gradient of the road; 2, the temperature and the humidity of the outdoor environment as well as the road adhesion coefficient are obtained, and the environment coefficient during vehicle running is determined according to the temperature and the humidity of the outdoor environment as well as the roadadhesion coefficient; and 3, the appropriate gear of the vehicle in the current running state is judged according to the vehicle reference gear coefficient and the environment coefficient during vehicle running. According to the ramp running gear-shifting control method based on the two-stage planet gear set two-speed transmission, the appropriate gear suitable for the vehicle can be determined according to the gradient of the road and the driving environment, it is ensured that the vehicle is in the efficient working state, and the vehicle running energy consumption is reduced.

The invention relates to a high-efficiency energy-saving plastic sealing motor and a mounting method thereof, including a middle plastic sealing body, a rear end cover, fixing ears, a rotating shaft,a rotor and a stator. A rear end cover is arranged at the rear end of the middle plastic sealing body; the middle plastic sealing body and the rear end cover are provided with the fixing ears; the rear end cover is installed on the middle plastic sealing body through fixing bolts; the front end of the middle plastic sealing body is provided with a front end cover; the front end cover is adhesivelyintegrated with the middle plastic sealing body; a through hole is arranged in the middle of the inner side surface of the front end cover, and a front sealing sleeve installed on the outer side of the through hole is arranged on the outer side of the front end cover; and a moisture-proof plate is arranged on the inner side of the front end cover. The plastic sealing motor divides the whole motorinto three parts, wherein the front end cover and the rear end cover are respectively provided with one moisture-proof plate, so that the inside of the plastic sealing motor is always in a dry state,thereby effectively reducing the energy consumption of the motor. The circulation hole in the middle plastic sealing body can circulate and cool the air inside the motor to make the rotor and variouscomponents in the low-temperature working environment, which can reduce the motor's power consumption due to excessive heat production. The low temperature environment is conducive to maintenance ofthe long-term efficient operation of the motor.

The invention discloses a combined opener which comprises a front opening device, a fiber conveying device and a rear opening device, wherein the fiber conveying device is positioned between the front opening device and the rear opening device; the three devices are connected in sequence; the fiber conveying device comprises a first conveying fan; a feeding box is arranged behind the first conveying fan; the first conveying fan is connected with the feeding box through a conveying pipeline; the feeding box consists of an upper volume box and a lower volume box; a first photoelectric sensor is arranged at the upper part of the upper volume box; a second photoelectric sensor is arranged at the lower part of the upper volume box; a third photoelectric sensor is arranged at the upper part of the lower volume box; and the first photoelectric sensor and the second photoelectric sensor work cooperatively to precisely control the fiber feeding box inside the upper volume box. The combined opener is high in automation degree and accurate in electric control, the yield of the combined opener is greatly increased, the secondary opening effect is remarkable, and the requirements of later production are well met.

The invention relates to the technical field of walnut oil squeezing, and discloses an oil squeezing device for juglans sigllata dode oil squeezing. The oil squeezing device comprises a squeezer body and a controller, a squeezing bin is arranged in the squeezer body, the top of one side of the squeezing bin communicates with a feeding pipe, and the bottom of the other side of the squeezing bin communicates with a material collecting bin of a recycling device through a discharging opening; a screw is horizontally arranged in the squeezing bin, and protruding threads are arranged on the screw along the outer surface of the screw in a surrounding mode; one end of the screw is rotatably connected with the squeezing bin, and the other end of the screw is rotatably connected with the squeezing bin, extends out of the squeezing bin and is in driving connection with the driving output end of a driving device; the part, located in the squeezing bin, of the screw is coaxially provided with a squeezing screw close to the feeding pipe and an auxiliary screw close to the discharging opening; and the squeezing screw is provided with squeezing threads, and the auxiliary screw is provided with auxiliary threads. Continuous long-time oil squeezing of the juglans sigllata dode can be achieved, and the time interval of shutdown maintenance of an oil press is similar to that of an existing screw type oil press.

The invention discloses a CPU load trend prediction method based on IF-EMD-LSTM, belongs to the technical field of civil aviation information processing, and is characterized in that the method comprises the following steps: S1, data preprocessing: employing an isolated forest algorithm to remove high abnormal points in data and improve the signal-to-noise ratio; S2, data decomposition: decomposing the input data into IMF components with different frequencies and residual errors by adopting an EMD algorithm; s3, optimizing the neural network, optimizing the LSTM initial weight and threshold byusing a BA algorithm, and constructing a BA-LSTM model by using the optimized value; and S4, neural network training: executing optimized LSTM network training on each group of IMF components, predicting each IMF and residual error through the independently optimized LSTM neural network, and reconstructing a prediction value from each prediction value. According to the invention, the real-time prediction error of the server management system on the CPU resource load is reduced.

The invention discloses an artificial tornado range hood. The artificial tornado range hood comprises an artificial tornado generation device, a commutator combination for converting concentrated sucking force of artificial tornado to an ultrastrong and ultra-wide negative pressure chamber, a lampblack sucking channel and a lampblack separation module consisting of a lampblack collecting cover, an oil filter plate and an annular channel secondary oil filter screen, a device for re-sucking escaped lampblack and a straight lampblack discharge channel; and all the components form a complete system. The artificial tornado range hood can keep a stable, ultrastrong and efficient working state for a long time, is low in power consumption, saves time and labor during cleaning, is lower in noise, and is a novel range hood different from a centrifugal wind wheel range hood.

The invention discloses a riverway floating garbage collecting device. The riverway floating garbage collecting device comprises a floating garbage blocking floating mat, a first water level regulatorand a second water level regulator, wherein the floating garbage blocking floating mat is used for blocking floating garbage on a riverway; the first water level regulator and the second water levelregulator are fixedly connected to the two ends of the floating garbage blocking floating mat correspondingly; a garbage storage basket for collecting the floating garbage is mounted on the floating garbage blocking floating mat; and the garbage storage basket is connected with a garbage basket recycling regulator through a rope. The riverway floating garbage collecting device can achieve and solve the problem of riverway garbage pollution and relieve the problem that a large amount of garbage is injected into the ocean to pollute the ocean water body; and the problems that at present, riverway garbage is difficult to collect, the influence of the riverway garbage on production and labor is serious, the pollution degree of garbage in the water body environment is serious, the economic input in riverway treatment is large, the income is small, and the treatment benefits of existing corresponding treatment facilities are poor are solved.

The invention discloses a cyclone dust removing system, a flow adjusting device for a dust remover, and a bulk material transport cart. The flow adjusting device comprises a push head mechanism and a valve (2), wherein the push head mechanism is used for carrying out corresponding movement according to the change of flow and / or pressure of an outlet of a multi-pipe cyclone dust remover (12); the valve is used for opening or closing at least one unit cyclone dust removing pipe (1) of the multi-pipe cyclone dust remover (12) through the movement of the push head mechanism. The push head mechanism can be correspondingly moved according to the change of the flow and / or the pressure of the outlet to drive the valve to be opened or closed, so that the flow adjusting device can be used for adjusting the quantity of the unit cyclone dust removing pipes participating the work in the multi-pipe cyclone dust remover according to the change of the flow and / or the pressure of the outlet, and furthermore, the air speed of the unit cyclone dust removing pipe participating the work is maintained in an optimal air speed interval; the self-adapted flow adjustment and an efficient working state of the multi-pipe cyclone dust remover is realized.

The invention discloses a laser welding machine based on water cooling and facilitating accurate butt joint. A work body, a control panel, a guide wire, a handheld type laser welding gun, a center control component, a welding device body, a water pump, a gas pump, a control switch, a water spraying head, an air blowing head and a fixed bolt are included; a water passing pipe, a gas passing pipe and the guide wire are connected to the outer side of the work body, and fixing buckles are fixed to the water passing pipe, the gas passing pipe and the guide wire; the handheld type laser welding gunis connected to the front end of the guide wire; a control piece is fixed to the upper side of the handheld type laser welding gun; the welding device body is fixed to a partition plate which is distributed at the middle position in the work body; and the control switch is installed in the control piece. According to the laser welding machine based on water cooling and facilitating accurate butt joint, the water pump, the gas pump, the water passing pipe and the gas passing pipe on the device can be used for providing air cooling and water cooling functions for the device, the cooling efficiency of the device on stainless steel after being welded is effectively improved, and therefore the using value of the device is improved.

The invention provides an LNG (Liquefied Natural Gas) filling station. The LNG filling station comprises an LNG immersed pump, an LNG mass flow meter, a control system and a frequency converter, wherein an inlet of the LNG immersed pump is communicated with an inlet pipeline, and an outlet of the LNG immersed pump is communicated with an outlet pipeline; the LNG mass flow meter is communicated with an outlet pipeline of the LNG immersed pump; the control system is electrically connected with the LNG mass flow meter, and receives the measured value of the mass flow in the outlet pipeline measured by the LNG mass flow meter; the control system is provided with a memory which stores a standard value of the mass flow value; the control system compares and analyzes the measured value of the mass flow value with the standard value of the mass flow value in real time; the frequency converter is electrically connected with the LNG immersed pump and the control system; and the control system adjusts the working state of the LNG immersed pump through the frequency converter according to the standard value of the mass flow value. The immersed pump of the LNG filling station and the whole LNGfilling station are in a highly cooperative and efficient working state.

The invention provides a horizontal dual-drive control method and device of a stacking machine, computing equipment and a computer readable medium. The method comprises the following steps: acquiring respective current torques of two horizontal driving mechanisms of the stacking machine; the two horizontal driving mechanisms are elastically connected with each other; according to the respective current torques of the two horizontal driving mechanisms, calculating the current average torque of the two horizontal driving mechanisms, and calculating a torque difference value between each current torque and the current average torque; and if the torque difference value corresponding to any horizontal driving mechanism is not in the preset range, rotating speed compensation is carried out on the horizontal driving mechanism with the torque difference value not in the preset range, so that the corresponding torque difference value is in the preset range. Reasonable load distribution can be achieved, stable operation of the stacking machine is kept, the replacement frequency of the rubber wheels can be reduced, and the failure rate of the stacking machine is reduced.