36results about How to "Control helps" patented technology

The invention mainly discloses a multidirectional numerical control hydraulic press for metal plasticity forming. A vertical main working cylinder, two horizontal cylinders and a push-out cylinder are mounted on a stress frame; a punching cylinder is combined inside the vertical main working cylinder stroking downwards, the two horizontal cylinders are a left horizontal cylinder and a right horizontal cylinder both of which stroke in the opposite directions, and each horizontal cylinder is combined with a quick-speed cylinder; the push-out cylinder is positioned below the vertical main working cylinder and adopts an inverted cylinder acting structure; and all cylinder bodies are controlled by a hydraulic control system. In the invention, an oil pump is used for direct driving, numerical control closed loop servo control is achieved, and meanwhile, axial loading and transverse loading are performed at the same time, so as to form high-precision parts with branch shaped or cavity-like complex structures in different directions.

The invention relates to a method for network coverage optimization processing, which comprises the steps: in step S102, collecting first coverage optimization data related to a local party and secondcoverage optimization data related to other base stations by a base station, judging whether coverage optimization is carried out or not in the local party according to a predetermined decision rule,if so, carrying out step S104, or else, carrying out step S106 and step S108, in step S104, if so, carrying out adjustment by the base station according to a first predetermined coverage optimizationrule, in step S106, or else processing the first coverage optimization data and the second coverage optimization data, reporting the data to a network administration node, determining an adjusting result by the network administration node according to local configuration data, the first coverage optimization data, the second coverage optimization data and a second predetermined coverage optimization rule, informing the base station and / or other base stations of the adjusting result, and in step S108, carrying out corresponding adjustment by the base station and / or other stations according tothe adjusting result. In addition, the invention also discloses a system for network coverage optimization processing.

The invention discloses a current detection circuit of a switch power supply and a switch power supply, relating to the current detection technology field. The current detection circuit of the switch power supply comprises a first current mutual inductor, a second current mutual inductor, a sampling resistor and a control system; the second current mutual inductor converts second current which is transmitted from the secondary of a transformer TX1 to an upper side diode to small current which is then supplied to a sampling resistor; the second current mutual inductor converts second current which is transmitted from the secondary of a transformer to an upper side diode to small current which is then supplied to the sampling resistor; and the control system obtain voltage on two ends of the sampling resistor which is converted to corresponding current. Through the clever choice of the current detection point, the current mutual inductor can be used to participate in current detection, the current mutual inductor can convert big current to the small current, and the small current can be supplied to the sampling resistor, which greatly reduce the loss of the sampling resistor, reduces the cost, and improves the precision and design difficulty. Besides, the switch power supply can realize the detection of the charging current, which can benefit the control of the charging current.

The invention concerns a method, device and computer program product for controlling a voltage source converter (16; 20) connected to a power grid (12; 24). The device (25; 26) includes a first input for receiving at least one detected electrical property (E, i) of an interface between the grid and the voltage source converter, and a control entity (27; 28) arranged to control the voltage source converter (16; 20) through using a control signal (vREF, TR) obtained through using a mapping of an electrical model of a non-salient synchronous machine onto an electrical model of the voltage source converter and through applying the detected electrical property of the interface between the grid and the voltage source converter in said mapped model, wherein the electrical model of the non-salient synchronous machine reflects the electrical dynamics of this synchronous machine.

The present invention relates to and provides a hydraulic control device using a hydraulic actuator. The device comprises: the hydraulic actuator having a clearance pocket; an oil supply line and an oil discharge line which are respectively connected to said hydraulic actuator; pilot valves which are respectively connected to said oil supply line and said oil discharge line; and an accumulator which additionally supplies oil to said hydraulic actuator, wherein easy hydraulic management can be carried out and pressure can be adjusted and controlled in a more efficient and proper manner.

According to one aspect of the present invention, provided is a preparation method of foam glass using waste glass comprising the steps of: pressurizing a waste glass powder comprising sodium silicate or boroaluminosilicate without adding a foaming agent in a mold to prepare a molded product; and firing and foaming the molded product at 600-1000 DEG C, wherein a preparation method of the waste glass powder comprises the step of pulverizing waste glass comprising sodium silicate or boroaluminosilicate by wet pulverization.

The invention discloses a solid material block for back coating of a thermal transfer ribbon and a preparation method thereof, wherein the solid material block comprises the following raw materials inpercentage by weight: 30% to 35% of methyl methacrylate, 5% to 10% of isobornyl methacrylate, 0.5% to 1% of hydroxyl-containing silane coupling agent, 7% to 9% of hydroxyl-terminated silicone rubber,0.5% to 1% of amino-containing silane coupling agent, 40% to 45% of toluene, 5% to 10% of butanone and 0.5% to 1% of azodiisobutyronitrile. According to the invention, prepared back coating mother liquor is solidified into the solid material block by adopting a vacuum drying method, so that the storage and transportation of back coating material are facilitated, and the quality of the back coating material during use is ensured.

The invention discloses bisphenol A formaldehyde phenolic resin and a synthetic method thereof. The molecular weight of the bisphenol A formaldehyde phenolic resin is 2000-3000, and the molecular weight is higher than that of existing bisphenol A formaldehyde phenolic resin. The bisphenol A formaldehyde phenolic resin is prepared from bisphenol A and formaldehyde free radicals which are polymerized by means of the method. The bisphenol A formaldehyde phenolic resin has excellent glueyness. On the one hand, original hydroxyl and benzene rings and active sites of bisphenol A are retained and themolecular weight of bisphenol A is also improved; on the other hand, as the polymer structure contains a great many of active sites, in the gluing process, chemical reactions happen or a curing agentis added to generate an undissolved polymer of a three-dimensional netty structure. Meanwhile, a condensation reaction is carried out on bisphenol A and formaldehyde to form methylene bridged bisphenol A. Therefore, the related molecular weight of the polymer is increased greatly, the polymer is then reacted with a bonding substrate, and can react through active groups, so that the bisphenol A formaldehyde phenolic resin is adhered quickly to achieve the adhering purpose.

The invention discloses a preparation method of precursor cobalt hydroxide. The preparation method comprises the steps of S1, preparing a cobalt salt solution, a strong alkali solution and an ammoniawater solution; S2, dropwise adding the prepared strong base and ammonia water into a water-containing reaction kettle, and uniformly stirring at a constant temperature to obtain a reaction base solution of which the pH value is 11.0-11.5 and the ammonia concentration is 0.4-0.8 mol / L; S3, adding the prepared cobalt salt solution, strong alkali solution and ammonia water into the reaction kettle according to a preset feeding speed to carry out coprecipitation reaction, and maintaining preset stirring strength and reaction temperature in the coprecipitation reaction process, wherein the pH value of the reaction is 11.0-11.5 and the ammonia concentration is 0.4-0.8 mol / L; and S4, separating and washing to obtain cobalt hydroxide. The invention further discloses a preparation method of a positive electrode material for a quick-charge lithium ion battery. According to the invention, the lithium cobalt oxide is promoted to expose more active crystal faces {010}, and the quick charge and quick discharge performance of the lithium battery is improved.

The invention provides an unmanned aerial vehicle automatic planting method and relates to the field of unmanned aerial vehicle automatic seeding in forestry and agriculture. The unmanned aerial vehicle automatic planting method comprises the following steps: 1) setting a flight path, namely setting a flight path of an unmanned aerial vehicle over a seeding required area before the unmanned aerialvehicle takes off; 2) setting a seed launching frequency, namely setting the seed launching frequency according to inter-plant distances of plant seeds to be launched; 3) setting the flight speed ofthe unmanned aerial vehicle, namely setting the flight speed of the unmanned aerial vehicle to be equal to a product of the launching frequency and the inter-plant distance according to the inter-plant distances of the plant seeds to be launched and the launching frequency; and 4) enabling the unmanned aerial vehicle to take off and seed, namely enabling the unmanned aerial vehicle to fly along apreset path, and seeding in a seed cabin according to the preset launching frequency. According to the method disclosed by the invention, by setting a matching relationship between the flight speed ofthe unmanned aerial vehicle and the launching frequency of the seeds, the distance controllability between the seeds can be ensured, so that resources are saved, and the plantation effect is improved.

The invention discloses a greenhouse environment detection device. The greenhouse environment detection device comprises a detection device body, two symmetrical 10mH I-shaped inductors, a signal frequency-selecting amplifying circuit, a single-chip control circuit, a wheel motor driving circuit, and a front-vehicle detection circuit are added on the bottom of the detection device body. An enameled wire with a 20KHz, 100mA AC current, an ultrasonic detection module 1, an ultrasonic detection module 2, a power supply, an infrared remote control, an infrared emission module and an infrared receiver module are mounted on the front road of a greenhouse door. The greenhouse environment detection device can be automatically moved to a garage along a wire after a customer finishes shopping, and is convenient for the next use.

The invention discloses an intelligent controller of a high-voltage isolation switch, which comprises a device shell, wherein the right side of the device shell is connected with a connecting wire; awaterproof sleeve II is arranged at the periphery of the wire inlet; a shell cover is arranged on the front surface of the device shell; an electromagnet is arranged at the upper end in the device shell; a triangular block I is fixed to the middle of the inner side of the device shell; and an insulating block is arranged in the middle of the inner lower end of the device shell. According to the device, the closing and opening work is achieved under the action of an insulating plate, a conducting iron core is arranged in the insulating plate, the conducting iron core is conducted when directlyfacing the two wire joints, the conducting iron core is disconnected when not directly facing the two wire joints, and electric arcs are not generated. The device adopts the electromagnet to drive theinsulating block to move, a magnetic field is generated when the current in a coil in the electromagnet is unstable, the insulating plate is attracted up, and the insulating plate is fixed through the action of the two triangular blocks, so that the insulating plate is prevented from falling to turn on a power supply, and accidents can be prevented.

The invention provides a video playing control method and device, electronic equipment and a storage medium. The method comprises the steps of: for any triggered video player controlled through face recognition, in response to the fact that the video player is in a starting state, using a camera for monitoring the expression of a user so as to obtain the face action of the user in real time; in response to the facial action type of the currently detected facial action contained in the target expression function library, obtaining a control operation type associated with the facial action basedon the target expression function library, and executing a video control operation corresponding to the control operation type for the video player, wherein the target expression function library isan expression function library associated with the video player, and the expression function library comprises a mapping relationship between at least one facial action type and a control operation type. Therefore, a more convenient video player control mode is provided, and the mode is not interfered by the played video, so that more convenient and accurate video playing control is facilitated.

The invention discloses an epidemic situation propagation prediction and analysis system based on model calculation and analysis, relates to the technical field of epidemic situation propagation prediction and analysis, solves the technical problem that epidemic situations cannot be accurately predicted in the prior art, and performs medical resource analysis on each region so as to perform reasonable scheduling on medical resources; meanwhile, medical resource analysis can serve as a standard of epidemic situation analysis, and the accuracy of epidemic situation analysis is improved; epidemic situation analysis is carried out on each sub-region, the incubation period of the epidemic situation is judged, meanwhile, the severity of the epidemic situation is analyzed, and the accuracy of epidemic situation prediction is improved; the incubation period and the infection efficiency of the real-time epidemic situation are analyzed, data are provided for epidemic situation prediction, epidemic situation evaluation is carried out through data analysis, operation for controlling the epidemic situation is determined, control over the epidemic situation is facilitated, and the infection rate of the real-time epidemic situation is reduced; and a signal for predicting production is verified, so that the consequence of epidemic situation diffusion or investment cost waste caused by epidemic situation measure errors due to epidemic situation prediction errors is prevented.

The invention relates to a device for cleaning a gel ink pen refill rod through high-pressure water jet. The device comprises a cleaning container base body. An industrial robot is installed on the right side of the cleaning container base body. A mechanical arm I is installed on the upper side of the industrial robot. A negative pressure suction cup is installed on the upper side of the mechanical arm I. A chuck support is installed on the inner side of the cleaning container base body. A guide rail supporting column is installed on the upper side of the cleaning container base body. A guiderail is installed on the right side of the guide rail supporting column. A guide rail support is installed on the right side of the guide rail. The upper side of the guide rail support is provided with a small servo motor, and an STM32 single chip microcomputer control panel is installed on the inner side of the small servo motor. The lower side of the cleaning container base body is provided witha bolt. By arranging the industrial robot, the negative pressure suction cup is controlled, and a chuck special for the gel ink pen refill rod can be moved and replaced conveniently through the negative pressure suction cup. The chuck support is arranged so as to contribute to fixing of the chuck special for the gel ink pen refill rod. By arranging the small servo motor, up-down movement of the guide rail support is achieved, then, up-down movement of a nozzle is achieved, and cleaning work for the gel ink pen refill rod is achieved. By arranging the STM32 single chip microcomputer control panel and a computer, the small servo motor and the industrial robot are controlled, then, the whole cleaning process for the gel ink pen refill rod is operated and controlled, cleaning work can be accurately carried out, the structure is simple, operation is convenient, and economy and practicability are achieved.

The invention discloses a methanol-high-pressure-oxygen compound two-stroke engine. The methanol-high-pressure-oxygen compound two-stroke engine is composed of one or more air cylinder groups, each air cylinder group comprises a main air cylinder and a corresponding auxiliary air cylinder, and the main air cylinders are provided with starting fuel nozzles, methanol nozzles, oxygen nozzles and mainair cylinder exhaust valves and are not provided with air inlet valves; and connection channels are arranged between main air cylinder exhaust ports and the auxiliary air cylinders, the connection channels are provided with one-way valves at auxiliary air cylinder inlets, air in the main air cylinders only flows into the auxiliary air cylinders through the one-way valves, the auxiliary air cylinders are not provided with fuel nozzles and are provided with auxiliary air cylinder air inlet valves and auxiliary air cylinder exhaust valves, and the auxiliary air cylinder air inlet valves communicate with an engine air inlet pipe. Methanol is injected into the main air cylinders, the amount of oxygen injected in the main air cylinders is controlled, the degree of fuel combustion is controlled,high-temperature active air which is not completely burned in the main air cylinders is introduced into the auxiliary air cylinders to continue combustion, the cylinder-dividing circulation is achieved, the emission of harmful air is reduced, and the full combustion of fuel is achieved.

The invention relates to the technical field of power electronic application, and aims to provide a maximum power point tracking analog control circuit applied to a micro inverter. The micro inverter connected to the photovoltaic cell panel comprises a flyback converter and a full-bridge power frequency inverter, and the maximum power point tracking analog control circuit is used for controlling the flyback converter. The control circuit comprises a signal switch control circuit, and a multiplier equivalent replacement circuit, a sampling and holding comparison circuit, a logical judgment circuit and a duty ratio increase and decrease control circuit which are electrically connected in sequence. Logic judgment is carried out on output power changes and duty ratio changes of the photovoltaic cell panel, then the duty ratio is directly controlled, and finally maximum power point tracking of the photovoltaic cell panel is achieved step by step. According to the invention, simulation control of maximum power point tracking in the micro-inverse system can be realized step by step, the control cost and complexity of the maximum power point of the photovoltaic cell panel can be effectively reduced, and the control of the micro-inverse system can be further integrated.

The invention discloses a public opinion popularity prediction method and system based on a graph neural network, and the method comprises the following steps: firstly, defining popularity, and building a relation model between an information cascade graph and the popularity; obtaining cascade graph features based on the relation model cascade graph features; obtaining time sequence features based on the relation model cascade graph features; obtaining an emotion value of each time interval based on the time sequence features, and generating emotion sequence features; and connecting the cascade graph features, the time sequence features and the emotion sequence features, and calculating to obtain future popularity. The method can effectively predict the popularity of the public opinion event. The method is beneficial to the management of social events, reduces the economic loss, and solves the technical problems of low cascade graph representation efficiency and non-ideal prediction accuracy in the prior art.

The embodiment of the invention provides a cloud service platform for vehicle refueling management, a medium and a computing device. The cloud service platform comprises: a transceiver module configured to receive a transportation task from an enterprise terminal, send the transportation task to a driver terminal, and receive settlement information from an oiler terminal; a storage module configured to store electronic oil currency accounts corresponding to the enterprise terminal, the driver terminal and the refueling person terminal, and the electronic oil currency accounts being used for storing electronic oil currencies currently governed by the corresponding terminals; an update module configured to update an electronic oil currency account related to the settlement information basedon the settlement information. The cloud service platform is helpful for enterprises or service parties to control vehicle refueling time and refueling places, reduces vehicle refueling cost, is helpful for flexibly scheduling vehicles executing transportation tasks, improves road transportation efficiency, and further reduces transportation cost.

The invention discloses a high-precision die cutting device for a welding gasket group. The high-precision die cutting device comprises a mounting bottom plate, wherein a fixing frame is fixedly connected to the top of the mounting bottom plate, a workbench is slidably connected in the fixing frame, a fixing slot is formed in the top of the mounting bottom plate, and an electric telescopic rod is fixedly connected to the front side of the mounting bottom plate; and the drive end of the electric telescopic rod penetrates through the mounting bottom plate and is fixedly connected to a slide block A. The invention relates to the technical field of welding gasket devices; by starting the electric telescopic rod, the workbench can slide out of the fixing frame in the direction of the fixing groove, then a servo motor is started, so that a rotating shaft drives a gear to rotate, a rack horizontally moves, the telescopic end of a piston rod is lengthened, and therefore, a slide plate drives a push plate to horizontally move in a fixing plate, the welding slag at the top of the workbench can be pushed out of the mounting bottom plate and can be automatically and efficiently cleaned, and the machining quality of the welding device is improved.

The invention relates to gas-insulated totally-enclosed electrical equipment. The equipment specifically comprises a closed shell, a basin-type insulator, a conductive seat and a conductor, wherein the basin-type insulator is fixedly arranged in the closed shell; one end of the conductive seat is fixedly connected with the basin bottom of the basin-type insulator, and the other end of the conductive seat is perpendicular to the basin-type insulator and overhangs outwards; the conductor is used for flowing; the conductor is inserted into an overhanging end of the conductive seat, and the insertion connection position is located at the basin opening or outside the basin opening. The equipment is advantaged in that the plug-in mounting position of the conductor and the conductive seat of the gas-insulated totally-enclosed electrical equipment is positioned at the basin opening of the basin-type insulator or outside the basin opening, and is far away from the basin bottom of the basin-type insulator, namely, the connection position of the conductive seat and the basin-type insulator is separated from the connection position of the conductive seat and the conductor; the electric field in a narrow space at the joint of the conductive seat and the basin-type insulator can be conveniently controlled; in addition, the heating position is transferred to the outer side of the concave cavity of the basin-type insulator, so the space is relatively wide, the air flow is smooth, the heat dissipation effect is optimized, and temperature rising is favorably controlled.

The invention discloses a cold state simulation device for a coking process of a heating surface of an incinerator, which comprises a circulation channel, the circulation channel comprises at least two main pipelines, and a height difference exists between the main pipelines; an injection channel is formed in the top of the main pipeline located at the topmost end, the main pipeline located at the topmost end communicates with the injection channel, and the injection channel is used for injecting liquid into the circulation channel; the solute adding chamber is arranged in the main pipeline and located at the rear end of the injection channel, solute is added into the solute adding chamber in a natural mixing or spraying mode and mixed with liquid, and the reaction assembly is arranged in the main pipeline and located at the rear end of the solute adding chamber. The invention provides the cold state simulation device for the coking process of the heating surface of the incinerator, which is adaptive to complex and various incineration conditions, and the coking process of the heating surface of different industrial incinerators can be simulated by different liquid flow rates, liquid densities, liquid reaction speeds and circulating channel shapes.

The invention discloses a power distribution network optimization device, which comprises a device main body, an equipment layer, a regulation and control layer and a heat dissipation layer, the heat dissipation layer, the regulation and control layer and the equipment layer are sequentially arranged on the device main body from top to bottom; a heat dissipation plate is arranged at the top of the heat dissipation layer, and a water accumulation cavity, a transition cavity and a heat dissipation cavity are formed in the heat dissipation layer from top to bottom; a water pump and a rotator are arranged in the heat dissipation cavity; a plurality of connecting blocks capable of sliding in the radial direction are arranged in the transition cavity; and the multiple connecting blocks are evenly distributed in the circumferential direction relative to the transition cavity, and connecting holes are formed in the middles of the multiple connecting blocks. The water pump penetrates through the connecting hole and is connected with the water accumulation cavity, and a water outlet faces downwards; blades are mounted on the rotator; and the regulation and control layer is used for regulating and controlling the equipment in the equipment layer. By arranging the water accumulation cavity, the transition cavity and the heat dissipation cavity in the heat dissipation layer, the heat dissipation speed of devices in the device body can be increased, protection on the devices in the device body is improved, and meanwhile when fire disasters and other abnormal accidents happen, fire extinguishing can be conducted in time.

The present invention discloses a peeling processing method of dendrobium officinale. The method comprises five steps of dendrobium officinale screening, washing, peeling, peel screening and shearing,wherein the peeling step comprises the following steps: dendrobium officinale stalks are heated at a heating temperature of 80-140 DEG C, and at the same time, the dendrobium officinale stalks are stirred and turned at a stirring and turning frequency of 40-60 rpm / min for 100-130 min. At the same time, the present invention discloses a processing device for realizing the method. The processing device comprises a bracket, a heating barrel, a roller and a driving member used for driving a rotation of the roller, the heating barrel is arranged on the bracket, a heating chamber is formed in the heating barrel, the roller is rotatably arranged in the heating chamber, and the roller and the driving member are in a transmission connection via a transmission member. The processing device can effectively strip the peels on the dendrobium officinale stalks, so that the obtained fresh dendrobium officinale strips are better in appearance. The use of the device can effectively increase productionefficiency and reduce labor costs.