35results about How to "Improve control regulation" patented technology

The invention relates to an intelligent optimization method of PID controller parameters. The method comprising the following steps: S1, building a water wheel adjusting system simulation model, and setting a target function according to a preset performance evaluation index; S2, calculating parameters, including a proportionality coefficient Kp, an integral coefficient Ki and a differential coefficient Kd, of a PID controller in the water wheel adjusting system simulation model by adopting a Z-N engineering setting method; S3, initializing all parameters of the water wheel adjusting system simulation model and an algorithm; and S4, optimizing PID controller parameters by adopting a mixed algorithm consisting of a standard particle swarm algorithm and an immune particle swarm algorithm. After simulation, the PID control adjusting effect of the hydroelectric generation water turbine is well improved; the performance index realized by the immune self-adaptive particle swarm algorithm isbetter than that realized by the standard particle swarm algorithm; no large overshoot occurs; the adjusting time is shorter; and the response effect on step signals is improved.

The invention discloses a semi-interpenetrating network sulfonated polyether ether ketone/ polystyrene-divinylbenzene proton exchange membrane and a preparation method thereof. The proton exchange membrane is formed by 100 parts of sulfonated polyether ether ketone and 6-60 parts of styrene-divinylbenzene cross-linked polymer, wherein the sulfonation degree of the sulfonated polyether ether ketone is 30-95 percent, and the sulfonated polyether ether ketone has favorable proton conduction capacity; and the styrene-divinylbenzene cross-linked polymer forms cross-linked network type structure. The invention also discloses the preparation method of the proton exchange membrane. Due to the existence of the cross-linked network type structure in the proton exchange membrane, the dimensional stability, the hydrolytic resistance, the methanol resistance and the like of the proton exchange membrane can be greatly improved. The in situ polymerization semi-interpenetrating network structure proton exchange membrane has excellent hydrolytic resistance, methanol resistance, mechanical property and thermal stability performance, and has favorable application prospect in direct-methanol fuel cells.

The invention relates to an intelligent adjusting system for the height of a multi-shaft heavy-duty cross-country chassis. The system comprises a suspension height measurement module, a central processor module, a display interaction module, an execution module, an image processing module, a positioning processing module and a mode module. The central processor module is connected with a CAN vehicle body bus to receive vehicle speed information in real time, the image processing module is connected with a driving image system to acquire road surface information, and the positioning processingmodule is connected with a vehicle-mounted BDS and can receive vehicle position information synchronously; the information is sent to the mode module to select a preset chassis height mode, an instruction is sent to the execution module to make the chassis reach a mode set height, the suspension height measurement module transmits the height information to the central processor module in real time, and thus intelligent adjustment of the chassis height is achieved. By means of the system, intelligent adjustment of the ground clearance of the chassis under no load or full load can be achieved, the highway maneuverability, obstacle-crossing driving and railway transport of the chassis are guranateed to improve the maneuverability and the trafficability characteristic, and meanwhile it is avoided that as the center of mass is high, the stability and the driving speed in railway transport cannot be guaranteed.

A method for controlling tension in a print media in a tension zone of a printing system comprises enabling an active tension control mode until the tension in the print media is in a stable state for a given period of time, and then switching to a synchronized control mode. The tension is monitored to determine if it exceeds a tension inner band but does not exceed a tension outer band while in the synchronized control mode. The speed of drive rollers is adjusted in response to this determination. The tension is also monitored to determine if it exceeds the tension outer band while in the synchronized control mode. The synchronized control mode is disabled in response to this determination and the active tension control mode is enabled. The frequency of speed adjustments is lesser in the synchronized control mode than in the active tension control mode.

The invention provides a bone-grafting filling material and a preparation method thereof. The method comprises the following steps: mixing and crushing biphasic calcium phosphates, calcium sulphate and iron oxide into grains of 0.1-1mm, burning at 800 DEG C for 3 hours, taking out to soak in 1M of (NH4)2HPO4 solution for 24 hours; drying two days, and burning at the temperature of 1100 DEG C for 1-2 days; slowly cooling, rinsing and baking, so as to obtain a skeleton structure; spraying a slow release formulation on a layer of collagen surface; spraying a layer of collagen on the surface of the slow release formulation to obtain a compound protein layer; baking the composite protein layer at 30 DEG C, carrying out superfine grinding, so as to obtain protein particles which are 50-100nm in particle size; finally, adding the skeleton structure and the protein particles to absolute ethyl alcohol; placing under the conditions at 1-5 DEG C and -0.01 to -0.05MPa for 2-3 days, so as to obtain the bone-grafting filling material. The bone-grafting filling material disclosed by the invention has biodegradability and biocompatibility, is free of or low in immunogenicity, strong in bone conductibility, bone inductivity, mechanical tolerance and the like, and kinds of performance requirements required by the bone filling material are completely met.

The invention discloses an antibacterial liquid decorative paper production process, comprising the steps of 1) preparing urea formaldehyde adhesive; 2) preparing modified melamine adhesive; 3) uncoiling raw paper; 4) pre-wetting; 5) soaking; 6) drying, and spraying; 7), drying, and coating; 8) cutting, and inspecting before storage. The production flow herein is simple, and the production process is convenient to control; the prepared adhesives of low molar ratio and white corundum form composite macromolecular material; through a special drying curve, high brightness, good wear resistance and high vividness are achieved; the decorative paper has formaldehyde release of </=0.5, with other properties kept unchanged; the decorative paper produced according to the process is a functional material; after the decorative paper is compacted into a floor, the nano material may form a trace ozone thin layer on the surface of the floor to inhibit or kill bacteria; meanwhile, the other properties of the floor are unaffected; the floor is particularly suitable for kindergartens, hospitals and other public places.

The invention discloses a huge amount interval adjusting method and a huge amount transferring method and equipment of tiny electronic components, and belongs to the field of the tiny electronic components. The method includes the steps that S100, tiny electronic component arrays on a raw material bearing platform are adsorbed at the bottoms of suckers through the suckers; S200, the suckers are moved above a dispersion bearing platform, the distances between the tiny electronic component arrays and the dispersion bearing platform reach the set height, and the suckers rotate forwards at a set angular speed; and S300, the tiny electronic component arrays are released by the suckers, and the tiny electronic components are centrifugally dispersed in the falling process and then fall on the dispersion bearing platform. Huge amount dispersion and huge amount interval adjustment are achieved through centrifugal dispersion, the yield is high, the out-of-control rate is low, and precise dispersion control is easily achieved.

The invention discloses pipe body bending equipment capable of rapidly bending to different degrees and used for ship construction. The pipe body bending equipment capable of rapidly bending to different degrees and used for ship construction comprises a supporting frame, an installation adjusting frame, a first motor, an installation supporting plate, a bending device, a metal pipe body and an adjusting control mechanism, wherein the supporting frame is fixedly installed at the bottom end of the adjusting control mechanism; the installation adjusting frame is fixedly connected to one side of the middle part of the adjusting control mechanism, the installation supporting plate is fixedly installed at the upper end of the installation adjusting frame, the first motor is fixedly installed at the middle part of the upper end of the installation supporting plate, and the bending device is installed in the installation adjusting frame; and the metal pipe body is placed at the middle part of the adjusting control mechanism, and the adjusting control mechanism is provided with a first bending supporting frame and a second bending supporting frame. In a using process for the pipe body bending equipment capable of rapidly bending to different degrees and used for ship construction, the metal pipe body can be efficiently and rapidly bent in a symmetrical state, the metal pipe can also be bent in a set shape according to needs, and convenient using, control and adjusting, and high bending efficiency are achieved.

The present invention belongs to the fields of computer science and communications, and particularly relates to a cabinet, a cooling system thereof, and a preparation method of insulation rubber compounded outside the cabinet. The cabinet comprises a cabinet body and a controller. An insulation rubber layer is compounded outside the cabinet body. Two sides of the cabinet body are provided with hollow cabinet walls. Cold medium is filled in the hollow cabinet walls. Semiconductor refrigeration sheets are embedded in wall boards of the two hollow cabinet walls close to exterior of the cabinet body. The cold end of the semiconductor refrigeration sheet is an internal cavity of the hollow cabinet wall. The hot end of the semiconductor refrigeration sheet is outside. The semiconductor refrigeration sheets are connected with a power supply through a first relay. The cabinet body is internally provided with a temperature sensor. The temperature sensor is connected with the controller. The controller is connected with a first relay coil. The cabinet has the beneficial effects that cooling adjustment is performed automatically according to internal temperature of the cabinet body, so that the cooling effect is good, the server can run safely and normally, the service life of the service is not shortened, the operating costs are reduced, and the thermal insulation effect is good.

The invention relates to an ultra-high mechanical strength ultrathin film for a flow battery and preparation and application thereof, and the method comprises the following steps: laying a liquid phase raw material dissolved with resin in a device capable of preparing a planar film, immersing the liquid phase raw material dissolved with resin in a liquid phase system containing a cross-linking agent, and standing to form a film I; the liquid-phase raw material comprises a good solvent of resin; the liquid phase system comprises a poor solvent A of the resin; transferring the film I into a poor solvent A or a poor solvent B of the resin, and standing to obtain a composite film comprising the film I and a film II; and stripping the membrane II to obtain the ion conduction membrane. The membrane has ultrahigh mechanical strength, the preparation method of the membrane is simple, the process is environment-friendly, the chemical stability is good, the ion selectivity is excellent, and the ion conductivity is good. The ultrathin film is beneficial to reducing the internal resistance of the film, and is expected to further improve the ion conductivity of the film while maintaining the high ion selectivity of the film.

The invention discloses a blowing device for a dry-type calcium spraying flue gas desulfurization system, which comprises a fixed bracket connected to a cylindrical tube, one end of the cylindrical tube connected to a conical tube, and the tail of the conical tube is arranged There is a fan, a feed inlet is provided on the wall of the conical cylinder, and a plurality of horizontal deflectors and a plurality of longitudinal deflectors are arranged in the cylindrical cylinder, and the horizontal deflectors and the longitudinal deflectors are connected with a pair of The pull rods are movably connected, and the pull rods are controlled by a motor to expand and contract, and a pair of flaps are provided at the end of the cylindrical tube to open and close. The blowing device for the dry-type calcium spraying flue gas desulfurization system of the present invention is provided with a cylindrical tube on the body, and a group of longitudinal deflectors and a group of transverse deflectors are arranged in the cylindrical tube, and the longitudinal deflectors and The horizontal deflector is used to guide the flow direction of the fluid in the cylindrical barrel, which has a better control and adjustment effect on the fluid, which is beneficial to control the stability of the fluid and improve the injection efficiency.

The invention belongs to the technical field of machining equipment, and particularly relates to an extension cutter head with a back clearance capable of being eliminated. In order to solve the problem that the machining precision needs to be improved due to the fact that the radial feeding speed and stroke adjustment of an extension cutter head in the prior art are inconvenient to control, the invention provides the extension cutter head with the back clearance capable of being eliminated. The extension cutter head comprises an extension cutter main body and a tool post sliding block connected to the extension cutter main body in a sliding manner, wherein one end of a pull rod extends to the interior of the extension cutter main body, and the end part of the pull rod is in driving connection with the tool post sliding block through a transmission mechanism used for driving the tool post sliding block to slide in the direction perpendicular to the axis of the pull rod; and the transmission mechanism comprises a gear, and the side surface of the gear is meshed with a driving rack arranged on the pull rod and a driven rack arranged on the bottom surface of the tool post sliding block at the same time. The transmission mechanism adopts a transmission mode of the rack and the gear, so that the feeding speed is stable, the feeding speed is convenient to control, the stroke is convenient to adjust, and the machining precision is improved.