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 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 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 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 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 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 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 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.