30results about How to "Intelligent speed control" patented technology

The invention relates to a notebook computer heat dissipation pad capable of cooling, comprising an air blowing fan, an air sucking fan and a semiconductor cooling piece. Meanwhile, an LED desk lamp, a button and a liquid crystal display are integrated on the heat dissipation pad. According to the invention, the air flow for performing heat dissipation inside the notebook computer is greatly increased; the heat dissipation capability of a heat dissipation base is improved; in addition, night illumination can be provided; a USB extension interface is provided; and a working status of the heat dissipation pad is displayed on the liquid crystal display in real time, thereby significantly improving user experience.

The invention relates to a blood type detection device based on microfluidic chips and STM32. The device comprises a base, an eccentric device and a positioning device. A switch and a touch screen are arranged at the right front end of the base. The eccentric device comprises an eccentric rotating disc and a direct-current brushless motor. The direct-current brushless motor is installed in the middle of the base and is connected with a rotating disc connecting shaft, the rotating disc connecting shaft sequentially penetrates upwards through an upper partition plate and a rubber pad and is connected with the eccentric rotating disc, and an inner ring and an outer ring of 24 clamping grooves used for containing the microfluidic chips are formed in the eccentric rotating disc. According to the device, an STM32 controller serves as a core, and positioning and eccentric operation are completed through the two crossed ball screws on the upper portion and a working table. With the combination of an embedding type, the microfluidic technology, movement control, optical detection and other technologies, the blood type detection device has the advantages of being accurate in positioning, high in speed and efficiency, intelligent, flexible, convenient to use and the like.

The invention discloses an underground belt control method and control system based on computer vision to carry out dynamic control on the rotating speed of a belt conveyor. The method comprises the steps of acquiring image information of a specific area of the belt conveyor; analyzing the image information and acquiring the coal flow information on the belt conveyor; generating a frequency converter control signal according to the coal flow information, and controlling the belt conveyor according to the frequency converter control signal. According to the underground belt control method and control system based on computer vision, an image acquisition unit is used for carrying out video acquisition on the coal materials on a belt, and then the collected image information is further processed to obtain coal flow information, and then intelligent control is carried out on the rotating speed of the belt conveyor through a frequency converter.

The invention provides a variable-frequency refrigerator and a control method thereof. The variable-frequency refrigerator comprises a box body and a door body, a chamber is arranged in the box body,a first temperature sensor is used for detecting the ambient temperature; a second temperature sensor is used for detecting the actual temperature of the chamber; a humidity sensor is used for detecting the ambient humidity; and the first temperature sensor, the second temperature sensor, the humidity sensor and the compressor are correspondingly connected with a compressor and a control panel; the refrigerator is in a normal operation state, the control panel is used for acquiring the temperature difference between the actual temperature of the chamber and the preset temperature of the chamber, and the control panel controls the rotating speed of the compressor according to the ambient temperature, the ambient humidity and the temperature difference value.

The invention relates to a vacuum system used in semiconductor and LED preparation processes and particularly relates to a vacuum system for efficiently pumping gases with small molecular weights. The vacuum system comprises a controller, a first-grade vacuum pump and a plurality of second-grade vacuum pumps, wherein the first-stage vacuum pump is connected with the second-stage vacuum pumps; both the first-stage vacuum pump and the second-stage vacuum pumps are connected with the controller; and the first-stage vacuum pump is connected with a process vacuum chamber. The plurality of second-stage vacuum pumps are connected with the first-stage vacuum pump after being connected in parallel. By using the vacuum system, more gases with low molecular weights can be carried within unit time, and the backflow of the gases with low molecular weights can be reduced, so that the gases with low molecular weights are efficiently pumped.

The invention disclosure belongs to the technical field of LNG (Liquefied Natural Gas) vaporizing, in particular to a vaporizing method of an LNG generator set. The vaporizing method of the LNG generator set comprises the following concrete steps of S1, setting parameters of control equipment: as a load is constant and required gas is constant when the set normally runs, that is, heat required bya vaporizer is constant, and a monitoring range of the control equipment is set according to a reared heat value; S2, monitoring in real time by the control equipment; and S3, performing operation according to the condition (a) and the condition (b) acquired in the step S2. Total required heat is controlled according to set data of the control equipment, and degree of automation is high; whether the gas temperature of the outlet of the vaporizer meets the requirement or not is automatically judged in an unattended condition; the gas generator set is enabled to run under a comparatively good state, thereby guaranteeing normal running of the set but also intelligently controlling flow and the rotational speed of a water pump, so that resource waste is avoided, and maintenance and operation cost of the set is reduced.

The invention provides a novel intelligent biological particle heating system. The system comprises a stove entity, a water circulation system, a communication system and an intelligent control system. The stove entity is further constituted by a feeding system, a combustion system, a temperature acquisition system, a remainder monitoring system, a fire alarm system and the like. When the stove entity works, a user only needs to set the necessary temperature through a control panel, and the intelligent control system heats fuel to ignite the stove entity through an electrical heating rod and controls the running-stopping time ratio of a feeding motor as well as the revolving speed of a draft fan and a circulating water pump through error values of temperature sampling values and set values, so that the accurate control over the indoor temperature is achieved. According to the novel intelligent biological particle heating system, biological particles such as straw serve as the fuel, and the heating cost is reduced; the intelligent control system automatically controls the feeding and the combustion degree, the complicated and overloaded degree of manual operation is reduced, problems of insufficient experience and the like are solved, and the accident rate of carbon monoxide poisoning and the accident rate of fire hazard occurrence are reduced. The system is grafted to the Internet through the wireless communication mode Zigbee, and it is facilitated to achieve the remote intelligentized control.

The invention discloses an automobile engine cooling fan blade rotating speed control system which comprises a cooling fan and an electronic control unit (ECU) for controlling a cooling fan motor. The control system further comprises a temperature collection unit arranged on an engine water tank. The temperature collection unit is connected with the ECU. By the adoption of the structure and method, the automobile engine cooling fan blade rotating speed control system has the advantages that the water temperature signals of the engine water tank are collected in real time, the cooling fan blade rotating speed is intelligently controlled, it is ensured that water temperature is relatively stable, and the fan performance is optimized, and the cost is reduced.

The invention relates to an air compressor which automatically adjusts the rotation speed of a motor of the air compressor. The driving motor of the air compressor is a DC motor or a series motor which can adjust the rotation speed; the control to the rotation speed of the motor is sent out by a controller according to the comparison between the pressure sensing signal of a pressure sensor and the pre-arranged pressure control signal; an outlet of the air compressor for compressing the air is provided with an unloading valve connected with a gas storage tank. The air compressor has the advantages of stable operation, small vibration, low noise, saving electric energy, and long service life. As the pressure sensor and the electronic controller are adopted, the rotation speed of the motor is intelligently controlled, and the starting times of the motor are reduced; as the unloading valve is adopted, the motor is started on the zero load condition of the air compressor every time, the starting current is reduced, the impact to the air compressor is relieved, and the service life of the equipment is prolonged.

The invention discloses a direct-current brushless electro-hydraulic power steering pump and a control method thereof of a new energy passenger car. The technical problem of too high temperature of oil liquid of existing steering pumps is solved. The direct-current brushless electro-hydraulic power steering pump of the new energy passenger car comprises a steering pump assembly, a direct-current brushless motor and a steering controller. An output shaft of the direct-current brushless motor is connected with a pump shaft of the steering pump assembly through an insulation transmission device. The insulation transmission device comprises a transmission connection block and a connection block insulation sleeve which are connected to the pump shaft in a sleeving mode sequentially from inside to outside and connected into a whole. The transmission connection block and the pump shaft transmit torque fixedly in the radial direction, and the connection block insulation sleeve and the output shaft of a steering motor assembly transmit torque fixedly in the radial direction. A heat dissipation cover with an opening is disposed on the steering pump assembly, the steering controller is connected with an angle sensor which detects the rotation angle of a passenger car steering wheel, and the steering controller controls the rotation speed of the steering motor assembly in a closed-loop mode according to an angle signal.

According to the tandem type hybrid power tractor and the intelligent control method, stepless speed change running of the tractor is achieved through driving of a motor, the running speed can be adjusted at will within 0-40 km / h, and the tandem type hybrid power tractor has the advantage of continuous stepless speed regulation; two-gear mechanical gear shifting is adopted, stepless speed change running is achieved in gears, and a field operation gear and a road transportation gear are achieved; the electric drive transmission system is simple in structure, high in durability, low in failure rate, high in transmission efficiency and stable in performance; diesel-electric driving power response is fast, power reserve is large, a diesel engine always works stably in the optimal economic area, and a tractor power system is efficient and saves oil. An electric control intelligent management system is adopted to intelligently control the rotating speed of the engine, and the whole machine is simple, comfortable and fast to control and low in control intensity.

The invention discloses a towed integrated stirring and pumping machine, and belongs to material stirring equipment. The towed integrated stirring and pumping machine comprises a feeding funnel, a water storage tank, a metering water tank, a stirring machine, a material storage tank, a pumping machine, an additive storage tank, a power generating unit, a console and an automatic pipeline controller, wherein the power generating unit, the additive storage tank, the console, the automatic pipeline controller, the pumping machine, the material storage tank and the feeding funnel are sequentially arranged on a trailing flat car from left to right; the water storage tank and the stirring machine are positioned on a rack; the metering water tank is above the stirring machine; the metering water tank is connected with the water storage tank through a pipeline; the additive storage tank is connected with the stirring machine through a pipeline; the pumping machine is connected with the material storage tank through a pipeline; the other end of the material storage tank is connected with the automatic pipeline controller through a pipeline; and the power generating unit and the console are electrically connected with the pumping machine, the metering water tank, the stirring machine and the feeding funnel. The towed integrated stirring and pumping machine has the characteristics that dry materials, wet materials and an additive are secondarily stirred and mixed on site, and the stirring and mixing time of concrete can be controlled.

The invention discloses a cooling fan drive circuit and a cooking utensil. The cooling fan drive circuit comprises a current sampling circuit, a signal amplification circuit and a drive circuit body which are connected in sequence. The current sampling circuit is used for detecting real-time currents of a heating device in the heating process. The signal amplification circuit is used for conducting signal amplification on the real-time currents detected by the current sampling circuit. The drive circuit body is used for controlling the rotating speed of a cooling fan according to current signals output by the signal amplification circuit. According to the cooling fan drive circuit and the cooking utensil, the fan can be driven with the help of the current sampling signals, the number of temperature wrap sampling circuits can be decreased, MUC resource consumption is reduced, power dissipation is also reduced, and meanwhile the rotating speed of the fan can be adjusted.

The invention discloses a curve slope climbing rack rail train. Problems that an existing train gear lacks a direct driving device, the slope climbing efficiency is low, requirements cannot be satisfied and the slope climbing ability is limited in the prior art are mainly solved. The curve slope climbing rack rail train comprises a train body; a bogie is connected to the bottom of the train body;a pair of gears and a pair of steel wheels are arranged in the horizontal direction of the bottom of the bogie; the gears are positioned between the two steel wheels; the gears are engaged with a rackon a track; and hub motors for driving the steel wheels and the gears are correspondingly connected to the steel wheels and the gears. Through adoption of the technical scheme, the curve slope climbing rack rail train can realize small curve with R of 25 m and slope climbing ability of 50%; and moreover, the steel wheels can realize active speed adjusting operation according actual situations ofthe track; and therefore, the service life of the curve slope climbing rack rail train is prolonged, the wear loss is reduced, the slope climbing ability is improved, the curve slope climbing rack rail train can climb various steep slopes, and very high practical values and promotion values are realized.

The invention relates to the technical field of block chaining technology development, and discloses an intelligent data storage cabinet for block chaining technology development. The intelligent datastorage cabinet comprises a cabinet body, wherein the side top of the cabinet body is provided with an air inlet hole, the interior of the air inlet hole is movably connected with a sealing member, and the bottom of the sealing member is engaged with a sealing toothed bar; a swing rod is movably connected to the bottom of the sealing toothed rod, a sector gear is connected to the bottom of the swing rod in a meshed mode, and a pushing toothed rod is movably connected to the bottom of the sector gear. Through cooperative use of an air inlet hole, a sealing piece, a sealing toothed rod, a swingrod, a sector gear, a pushing toothed rod, a temperature sensing gear and a spiral bimetallic strip, the sealing toothed rod drives the sealing piece to rotate, a sealing block and the air inlet holeare staggered, the effect of opening the air inlet hole is achieved, heat dissipation of the cabinet body is facilitated during opening, and dust is effectively prevented from entering during sealing; therefore, the use effect of the device is effectively improved, the intelligent control effect is achieved, and the trouble of manual operation is avoided.

The invention provides an intelligent exhaust hood which comprises a wind wheel, an oil fume separating device and an oil fume real-time monitoring control system, wherein the oil fume separating device is arranged below the wind wheel and used for separating oil fume; and the oil fume real-time monitoring control system is arranged around the oil fume separating device, and used for detecting theconcentration of the oil fume as well as regulating the rotating speed of the wind wheel and the oil fume separating speed of the oil fume separating device according to the concentration of the oilfume. According to the intelligent exhaust hood, the adsorbed oil fume is separated through a combination of centrifugal force and suction force, so that the accumulation of the oil fume in the intelligent exhaust hood can be effectively reduced and the influence of the accumulation of the oil fume on the service life of the intelligent exhaust hood can be prevented; and besides, the concentrationof the oil fume around the intelligent exhaust hood can be detected in real time, and the centrifugal force and the suction force can be correspondingly regulated according to the detected concentration of the oil fume, thereby achieving the intelligent control over the rotating speed of the wind wheel and the rotating speed of the oil fume separating device.

The invention discloses a cooling fan drive circuit and a cooking utensil. The cooling fan drive circuit comprises a current sampling circuit, a signal amplification circuit and a drive circuit body which are connected in sequence. The current sampling circuit is used for detecting real-time currents of a heating device in the heating process. The signal amplification circuit is used for conducting signal amplification on the real-time currents detected by the current sampling circuit. The drive circuit body is used for controlling the rotating speed of a cooling fan according to current signals output by the signal amplification circuit. According to the cooling fan drive circuit and the cooking utensil, the fan can be driven with the help of the current sampling signals, the number of temperature wrap sampling circuits can be decreased, MUC resource consumption is reduced, power dissipation is also reduced, and meanwhile the rotating speed of the fan can be adjusted.

The invention belongs to the related field of environment-friendly printing, and relates to an environment-friendly printing water-based ink conveying box which comprises a shell and is characterized in that a water-based ink grinding device is arranged in the shell and comprises a rotating shaft rotationally arranged in the shell, and a water-based ink conveying device is arranged in the rotating shaft. An auxiliary adding and discharging device is arranged at the upper end of the shell and comprises a proportioning box fixedly arranged on the shell. The water-based ink can be intelligently detected, corresponding operation is performed according to the change of the viscosity of the water-based ink, the water-based ink between layers can be sprayed to the upper layer in the stirring process, the overall uniformity of the water-based ink is guaranteed, auxiliaries can be automatically added, and the production efficiency is improved. And the auxiliary agent is pre-stirred and then uniformly spread on the water-based ink, so that the rotating speed of the motor can be intelligently controlled, and residual particles in the shell can be effectively ground.

The invention relates to a local ending point-based numerical control system speed controlling method, which comprises the steps of drawing a maximum speed curve by obtaining theoretical maximum speeds of all small line sections through computing, selecting a local ending point accordingly, sectioning the processing path by the local ending point, and performing a speed increasing or reducing plan on the sectioned path unit by a system. The method disclosed by the invention plans related continuous multiple sections of small line sections instead of a single small line section every time, thus avoiding frequent speed increasing and reducing, preventing easy generating of relatively large vibrating of a lathe and improving the machining efficiency; and after the method is used for planning the speed, speed increasing and reducing profiles can be sectional or a certain table instead of being analytic functions, and symmetrical speed increasing and reducing processes are not needed.

The invention discloses an environment temperature calculation and compressor rotating speed control method. The method realizes intelligent calculation of the temperature of the environment where a refrigerator is located and the load in a compartment by using the starting rate and the compartment cooling speed of the refrigerator in a stable operation state, and adjusts the rotating speed of a compressor by using the calculated environment temperature and the load in the compartment to realize energy-saving operation of the refrigerator. According to the method, an environment temperature sensor and related wire harnesses can be omitted, and the refrigerator manufacturing cost is reduced. Intelligent calculation of the environment temperature, intelligent calculation of the chamber load and intelligent control of the rotating speed of the compressor are achieved through the refrigerator starting rate and the chamber cooling speed, and the running rotating speed of the compressor is more suitable for the environment working condition and the load working condition when a user uses the compressor.

The invention provides a variable-frequency refrigerator and a control method thereof. The variable-frequency refrigerator comprises a box body and a door body, a chamber is arranged in the box body,a first temperature sensor is used for detecting the ambient temperature; a second temperature sensor is used for detecting the actual temperature of the chamber; a humidity sensor is used for detecting the ambient humidity; and the first temperature sensor, the second temperature sensor, the humidity sensor and the compressor are correspondingly connected with a compressor and a control panel; the refrigerator is in a normal operation state, the control panel is used for acquiring the temperature difference between the actual temperature of the chamber and the preset temperature of the chamber, and the control panel controls the rotating speed of the compressor according to the ambient temperature, the ambient humidity and the temperature difference value.

The invention provides a pulverizing device for an agricultural pulverizer and a use method of the pulverizing device. The pulverizing device comprises a machine body, a pulverizing chamber, a drawerand a discharging channel, wherein support legs are arranged at the lower end of the machine body, a feeding funnel is arranged at the upper end of the machine body, and the pulverizing chamber is formed in the lower end of the feeding funnel; and a funnel disc I is arranged in the pulverizing chamber, a cutter disc I is arranged at the lower end of the funnel disc I, a funnel disc II is arrangedat the lower end of the cutter disc I and a cutter disc II is arranged at the lower end of the funnel disc II. The pulverizing device is of a three-layer cutter disc design, corn straws are put into the pulverizing device through the feeding funnel, collides with the funnel disc I to slide to the cutter disc I, are cut by the cutter disc I, collide with the inner wall of the pulverizing chamber, are flipped to the funnel disc II, are cut by the cutter disc II, are repeated processed, are cut by a cutter disc III and are cut by three layers of the cutter discs in total, so that the pulverization is relatively thorough.

The invention discloses an automatic wire arrangement compensation device for stainless steel wires. The automatic wire arrangement compensation device mainly comprises a spool body, a PLC control system and push rods, wherein the push rods are respectively positioned on the two sides of a wing plate of the spool body, and the PLC control system is respectively provided with a PLC terminal, a speeding induction device, an accessory control device and an alarm device. The PLC control system is adopted to intelligently control the speed of the spool body, so that the conditions of wire rope pressing, disorder and mutual extrusion, the frequency of replacing the spool body caused by abrasion is effectively reduced, and the production cost is reduced. The automatic wire arrangement compensation device has reasonable design and is suitable for wide application in the industry of needing wire arrangement devices.

An embodiment of the invention provides a mobile air conditioner and a control method of the mobile air conditioner. The control method of the mobile air conditioner comprises the steps of acquiring the exhaust temperature of an exhaust fan; calculating the temperature difference value between the exhaust temperature and the set temperature; and controlling the rotating speed of the exhaust fan according to the temperature difference value. The technical problem that an existing mobile air conditioner is low in heat exchange efficiency is solved.

The invention discloses a vehicle speed control method and device of a two-wheeled vehicle, a storage medium and equipment. The method comprises the steps that firstly, driving data such as the load capacity, the wind resistance coefficient and the current vehicle speed of a target two-wheeled vehicle are obtained; then, according to the load capacity and the wind resistance coefficient of the target two-wheeled vehicle, the reasonable vehicle speed range of the target two-wheeled vehicle is calculated through a dynamic load speed measurement algorithm; then, whether the current speed of the target two-wheeled vehicle is within the reasonable speed range of the target two-wheeled vehicle or not is judged, and whether the target two-wheeled vehicle is controlled to be decelerated or not is determined according to the judgment result, so that driving safety of the target two-wheeled vehicle is guaranteed. The reasonable vehicle speed range is determined according to the load capacity and the wind resistance coefficient of the target two-wheeled vehicle, and then whether the current vehicle speed is within the reasonable vehicle speed range is judged, so that intelligent vehicle speed control of the target two-wheeled vehicle in the driving process can be realized according to the judgment result under the condition that the load capacity and the wind resistance coefficient change continuously, and the driving safety of the target two-wheeled vehicle is improved. Therefore, the driving safety is ensured.

The invention discloses an intelligent control system for boiler water supply. The intelligent control system comprises a signal processing module, a feedback adjusting module, a detection analysis module, a touch screen, an alarm module, a signal receiving and transmitting module, a boiler body, a liquid level transmitter, an energy saver, a water supply pump, a water supply pipe, an adjusting valve, a lead screw, a guide rod, a proportional valve, a water conveying pipe, a lifting block, a worm, a rotating shaft, a worm wheel and a limiting groove. According to the intelligent control system, parameters in the working process of equipment are monitored in real time, then the processing module utilizes a multi-stage function PID algorithm to accurately control the pressure, the flow, theproportional valve and the like, stability and reliability are achieved, and unnecessary energy consumption can be saved; and compared with a traditional water supply system, the system is beneficialto energy saving, the collected data are analyzed and calculated through the detection analysis module, when the data of the equipment are abnormal, an alarm is given in time, timely overhauling and maintenance are facilitated, larger economic losses are avoided, and the safety performance of the equipment can be improved.

The invention relates to a speed control method for a numerical control system in consideration of small line segment and connection point speed. A maximum speed curve is drawn by obtaining theoretical maximum speed of all small line segments and connection points through calculation, local end points are selected accordingly, a machining path is segmented through the local end points and the system makes acceleration or deceleration speed plans for path units obtained after segmentation. The line segments planned at each time by adopting the method provided by the invention are no longer separate small line segments but relevant continuous multiple small line segments. Therefore, frequent acceleration does not occur, a machine is not easy to generate greater vibration and the machining efficiency is improved; by adopting the method to plan the speed, acceleration and deceleration outlines are not required to be an analytic function and can be segmented or certain tables; and acceleration and deceleration processes are not required to be symmetrical.

The invention discloses a fan flow detection method and system, computer equipment and a storage medium. The flow of a fan pipeline can be detected in real time in the working process of a fan so as to monitor and detect a preset collection point, and under the condition that the flow is higher than a certain range, a warning signal is sent out so as to monitor the state of the fan pipeline in real time; and a worker can quickly obtain the fault condition of the fan according to the abnormal flow, so that the worker can determine whether shutdown maintenance is needed or not according to the actual condition, normal use of the fan is guaranteed, the rotating speed of the fan is intelligently controlled, the rotating speed of the fan has a self-adjusting function, it is guaranteed that therotating speed of the fan is in a relatively stable state, and therefore, pressure in the pipeline is regulated and controlled, and normal flow of the pipeline is guaranteed.

The invention discloses a control system suitable for positive pressure protective clothing. The system comprises a main control system, a pressure sensor, an alarm device, a transmission device and an external terminal, and the pressure sensor is arranged in the positive pressure protective clothing and used for collecting pressure data in the positive pressure protective clothing; the main control system is connected with the pressure sensor, a power supply and a filter in the positive pressure protective clothing, and is used for carrying out state monitoring on the pressure intensity, the battery electric quantity and the service life of the filter in the positive pressure protective clothing; and in the state monitoring process, the main control system controls the rotating speed of a fan in the positive pressure protective clothing according to pressure data fed back by the pressure sensor in real time, so that the power consumption of the system is reduced, and the wearing comfort of a user is improved. The system can intelligently control the rotating speed of the fan, so that the system power consumption is effectively reduced, and the wearing comfort of a user is improved.

The invention discloses a direct-current brushless electro-hydraulic power steering pump and a control method thereof of a new energy passenger car. The technical problem of too high temperature of oil liquid of existing steering pumps is solved. The direct-current brushless electro-hydraulic power steering pump of the new energy passenger car comprises a steering pump assembly, a direct-current brushless motor and a steering controller. An output shaft of the direct-current brushless motor is connected with a pump shaft of the steering pump assembly through an insulation transmission device. The insulation transmission device comprises a transmission connection block and a connection block insulation sleeve which are connected to the pump shaft in a sleeving mode sequentially from inside to outside and connected into a whole. The transmission connection block and the pump shaft transmit torque fixedly in the radial direction, and the connection block insulation sleeve and the output shaft of a steering motor assembly transmit torque fixedly in the radial direction. A heat dissipation cover with an opening is disposed on the steering pump assembly, the steering controller is connected with an angle sensor which detects the rotation angle of a passenger car steering wheel, and the steering controller controls the rotation speed of the steering motor assembly in a closed-loop mode according to an angle signal.