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85results about How to "To achieve synchronous operation" patented technology

Rotational speed synchronous control device and control method of multi-switch reluctance motor

The invention discloses a rotational speed synchronous control method of a multi-switch reluctance motor. The rotational speed synchronous control method comprises the following steps of calculating a rotational speed of a virtual main shaft, taking the rotational speed as a given rotational speed of each motor; calculating weight average rotational speed of each motor, and taking the weight average rotational speed as a reference rotational speed of each motor torque compensation module; calculating a reference torque of each motor, and comparing the reference torque with an actual torque of the motor to obtain corresponding torque deviation; calculating a corresponding compensation torque of each motor, and adding the corresponding compensation torque to the torque deviation to obtain torque regulation quantity of each motor; comparing actual flux of the motor with given flux of a system to obtain flux deviation; controlling the motor according to the torque regulation quantity and the flux deviation so that accurate tracking on the given rotational speed of the system by the actual rotational speed of each motor can be achieved and the purpose of synchronous running at various motor rotational speeds is achieved. The invention also discloses a rotational speed synchronous control device of the multi-switch reluctance motor.
Owner:HUNAN UNIV OF SCI & TECH

Optical fiber temperature and strain sensing device and method based on high spectral resolution technology

The invention discloses an optical fiber temperature and strain sensing device based on a high spectral resolution technology. The optical fiber temperature and strain sensing device comprises an optical transmitting system, an optical fiber sensing system, a high spectral resolution scanning system, an optical filtering system, a data acquisition system and a control system. The invention further discloses an optical fiber temperature and strain sensing method based on a high spectral resolution technology. According to the invention, temperature and strain carriers based on optical fiber brillouin scattering are used for the distributed sensing of temperature and strain; a narrowband reflective tunable Bragg grating is used for filtering out optical fiber brillouin back scattering, a cavity length-tunable Fabry-Perot interferometer is used for the full spectrum scanning of optical fiber brillouin scattering spectrum, a single photon technology is used for detecting a back brillouin scattering signal in the optical fiber; the invention has the advantages that the structure is simple, s the stability is high, compared with coherent detection, the signal detection and processing difficulty and complexity are reduced, and the detection distance resolution and accuracy are improved.
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA

Discrete modular large airship transshipment and flying system and method

The invention discloses a discrete modular large airship transshipment and flying system and method. The discrete modular large airship transshipment and flying system comprises a transshipment and flying platform and a synchronous control system. The transshipment and flying platform comprises a pulling vehicle set and two transshipment vehicle sets, and the pulling vehicle set and the two transshipment vehicle sets are independent of one another. The pulling vehicle set ties the head of an airship through pulling of a pulling tower. The two transshipment vehicle sets are arranged on the two sides of the airship correspondingly, and the two sides of the airship are fixed through mooring ropes. The pulling vehicle set and the transshipment vehicle sets are all of modular structures, and all modules can be modularly combined as needed through installation connectors. The synchronous control system controls the transshipment and flying platform to pull the airship to move and adjusts the movement direction of the transshipment and flying platform according to the change of a wind field. The discrete modular large airship transshipment and flying system and method are suitable for transshipment, mooring and flying tasks of large near space airships. The discrete modular large airship transshipment and flying system is convenient to operate, high in environment adaptability and especially suitable for transshipment and flying occasions of large airships.
Owner:NO 63655 TROOPS OF THE CHINESE PEOPLES LIBERATION ARMY

Dual-trimming door pocket edge banding machine

The invention discloses a dual-trimming door pocket edge banding machine which comprises a machine body, wherein two first supporting platforms that are arranged left and right are connected to the upper surface of the machine body, a conveying belt group is arranged on each first supporting platform, the upper parts of the two first supporting platforms are provided with a supporting frame, the supporting frame is internally provided with two first brackets arranged left and right, a pressure wheel set is connected to each first bracket, and the two pressure wheel sets respectively correspond to one conveying belt group; the part of the machine body, which is positioned at the rear part of the supporting frame, is sequentially provided with a pre-milling device, a gluing and facing device and a belt-cutting device from left to right; the two conveying belt groups are connected through a coupling device, a fixing plate is connected to the upper surface of the coupling device, and a plurality of pulleys arranged left and right are arranged on the fixing plate; and the part of the machine body, positioned between the belt-cutting device and one end of the fixing plate, is provided with a first trimming device, the rear part of the machine body is provided with a second supporting platform for supporting a second trimming device and a slotting device. The invention has the advantages of improving working efficiency and reducing labor intensity.
Owner:江苏盐城苏凌机械有限公司

SOPC-based embedded dual-core servo controller and designed method thereof

The invention provides an SOPC-based embedded dual-core servo controller and a designed method thereof. The hardware architecture includes an FPGA, a power system, a program FLASH, a data FLASH, a driver, a data instruction communication unit, and a sensor data reading unit and the like, wherein the power system, the program FLASH, the data FLASH, the driver, the data instruction communication unit, and the sensor data reading unit and the like are in signal connection with the FPGA. The FPGAs is provided with two Microblaze soft-core processors to carry out dual-core parallel computing. A plurality of IP soft cores are signal connection by a PLB bus. All Microblaze soft-core processors carry out data exchange with all IP soft cores through PLB buses. The two Microblaze soft-core processors carry out dual-core data communication. According to functional requirements of the control system, the hardware architecture and interface type are determined; the software bottom architecture is determined; compiling is carried out by using an XPS tool; a top interface file is outputted; and top-level soft core controller design development is carried out at an SDK platform. Therefore, the co-processing ability of the controller is enhanced. The SOPC-based embedded dual-core servo controller has advantages of abundant resources, strong expandability, high reliability, low cost and simple design.
Owner:SHANGHAI RADIO EQUIP RES INST

Fault-tolerant control method of dual-motor synchronous control system

The invention discloses a fault-tolerant control method of a dual-motor synchronous control system. A feedback rotating speed and a rotor position are input into a synchronous control unit, three-phase currents of double motors are converted through Park and Clark to obtain respective feedback quadrature-direct axis currents, corresponding torques are input into the synchronous control unit to becompared, and a corresponding angle and speed compensation strategies are determined; a quadrature-axis reference current and a direct-axis reference current are compared with the feedback quadrature-direct axis current of the double motors, and respective quadrature-direct axis reference voltages are calculated; Park inverse transformation is performed on the quadrature-direct axis reference voltage of the double motors to obtain two voltage components under a static coordinate system, and three duty ratio signals are obtained; and a fault bridge arm of the inverter is judged by detecting a three-phase current of the double motors, fault signals are sent to a fault-tolerant inverter and a PWM signal logic synthesis unit to complete reconstruction of a fault-tolerant topology and implementation of a fault-tolerant algorithm, and finally fault-tolerant control of the double permanent magnet synchronous motors is achieved. System reliability is high.
Owner:CHECC DATA CO LTD +1

Flying shear control system and flying shear control method

The invention discloses a flying shear control system and a flying shear control method. The flying shear control system is divided into a management layer, a control layer and an equipment layer, wherein the management layer comprises an upper computer; the control layer comprises a DCS (Distributed Control System) main station, an I / O (Input / Output) slave station and a frequency converter; the frequency converter, the I / O slave station and the upper computer are communicated with the DCS main station by DP (Data Processing) buses respectively; the equipment layer comprises a synchronous servo motor, a direct current motor, a pair of hydraulic flying shears and a first detection switch; the first detection switch is connected with the I / O slave station and mounted ahead the pair of hydraulic flying shears; a rotary encoder is arranged on a transmission shaft connected with the synchronous servo motor; an incremental encoder is arranged on a transmission shaft connected with the direct current motor; the synchronous servo motor and the rotary encoder are connected with the frequency converter, respectively; the direct current motor is connected with the DCS main station by a direct current driver; and the incremental encoder is connected with the frequency converter and the direct current driver respectively. The system and the method has the advantages of high shearing precision, strong working stability, high responsivity and the like.
Owner:GUANGZHOU MECHANICAL ENG RES INST

Gantry synchronous control method, motor driver and motor control system

The invention discloses a gantry synchronous control method, a motor driver and a motor control system. A first motor driver and a second motor driver of the motor control system are connected througha communication bus; the first motor driver acquires first position information of a first motor driven and controlled by the first motor driver; the second motor driver obtains second position information of a second motor driven and controlled by the second motor driver and sends the second position information to the first motor driver through the communication bus; the first motor driver obtains a position difference according to the obtained first position information and second position information; and gantry position compensation control is carried out according to the position difference. Compared with an existing gantry control mode, position information interaction between the first motor driver and the second motor driver is directly realized through the communication bus, thedisturbance resisting capacity is higher, the position information can be not transmitted to control equipment, and gantry control can be realized on the first motor driver, so that the data interaction is reduced, and the wiring complexity and the use and maintenance cost of the system are reduced.
Owner:SHENZHEN LEADSHINE INTELLIGENT CONTROL CO LTD +1

Egg collection line system of coop

The invention relates to an egg collection line system of a coop. The egg collection line system comprises a stacked coop frame body. An egg collection belt cleaning device and an egg collection belt transmission device are arranged on the two sides of the stacked coop frame body. An egg collection line conveying chain device is arranged at one end of the stacked coop frame body. A conveying chain and a transmission roller are arranged on the egg collection line conveying chain device. An egg collection line counter weight hammer fixing frame device is arranged at the tail end of the egg collection line conveying chain device. The egg collection line system has the advantages that dust on an egg conveying belt is removed through friction between an egg belt and an egg belt brush, and the cleanness degree of the egg belt is improved; the problem that the egg belt is excessively tensioned is solved by regulating the gap between a belt pressing roller and the egg belt roller through a butterfly nut, and the egg belt can not slip; arc turning is achieved through cooperation of hook bodies and hanging rods of the conveying chain, eggs can be stably conveyed, and installation and detachment are convenient; the chain can be in the tensioned state through a counter weight hammer, the effect of regulating the length of the chain can be achieved, the phenomenon that eggs are stuck can not happen, and egg breakage caused by the tension degree of the chain can not happen.
Owner:HENAN JINFENG POULTRY EQUIP

Copper electroplating groove inlet section and outlet section water blocking buffer apparatus

The present invention relates to the technical field of electroplating equipment, more particularly to a copper electroplating groove inlet section and outlet section water blocking buffer apparatus, which comprises a main conveying chain, a sub-conveying device and a water blocking buffer device, wherein the sub-conveying device comprises a sub-conveying wheel upper fixation seat, a sub-conveying wheel lower fixation seat, a sub-conveying wheel shaft, a first sub-conveying wheel, a second sub-conveying wheel and a third sub-conveying wheel, the sub-conveying wheel shaft is arranged between the sub-conveying wheel upper fixation seat and the sub-conveying wheel lower fixation seat, the first sub-conveying wheel is rotatably connected to the upper end of the sub-conveying wheel shaft, and the second sub-conveying wheel is rotatably connected to the lower end of the sub-conveying wheel shaft. According to the present invention, with the copper electroplating groove inlet section and outlet section water blocking buffer apparatus, it is ensured that the liquid level in the copper groove is maintained at a certain height, such that the liquid in the copper groove maintains the stable and low water flow pressure and the water flow rate, and the phenomenon that the liquid impact causes the plate snapping and the wrinkling of the electroplating substrate cannot be generated when the electroplating substrate enters the copper electroplating groove inlet section and outlet section water blocking buffer apparatus so as to ensure the product quality.
Owner:KUN SHAN KORBE PRECISION EQUIP CO LTD

Device and method for controlling flatness of full-width composite material

The invention discloses a device and a method for controlling the flatness of a full-width composite material. The device for controlling the flatness of the full-width composite material comprises a thickness gauge, a probe mounting rack, an extruder, a flatness adjusting mechanism, a PLC (programmable logic controller) and a thin film conveying mechanism, wherein a probe of the thickness gauge is arranged on the surface of extrusion composite films through the probe mounting rack; the flatness adjusting mechanism is arranged on the extruder; the flatness adjusting mechanism, the thickness gauge and the extruder are electrically connected with the PLC respectively; the extrusion composite films are conveyed by the thin film conveying mechanism; a die head of the extruder is arranged above the thin film conveying mechanism. The method for controlling the flatness of the full-width composite material comprises the step as follows: thickness uniformity adjustment of a horizontal cross section of each extrusion composite film, thickness uniformity adjustment of a longitudinal cross section of each extrusion composite film and surface flatness adjustment of the stacked extrusion composite films are performed integrally. According to the device and the method, integrated control of the thickness uniformity adjustment of the horizontal cross section of each extrusion composite film, the thickness uniformity adjustment of the longitudinal cross section of each extrusion composite film and the surface flatness adjustment of the stacked extrusion composite films can be realized, and the product quality is effectively improved.
Owner:HUILONG PLASTICS MACHINERY

High-viscosity epoxy resin composite material pultrusion equipment for fibers

The invention discloses a high-viscosity epoxy resin composite material pultrusion equipment for fibers, comprising a mounting base, a preheating mechanism, a heating curing mechanism, a traction mechanism and a cutting mechanism. The preheating mechanism, the heating curing mechanism, the traction mechanism and the cutting mechanism are all fixedly connected with the top of the mounting base; the heating curing mechanism comprises a curing box; a heating cavity is formed in the end, close to the preheating mechanism, of the curing box; a cooling cavity is formed in the end, away from the heating cavity, of the curing box; the heating cavity communicates with the cooling cavity through a through opening; a telescopic air cylinder is fixedly connected to the inner bottom of the heating cavity; the output end of the telescopic air cylinder is fixedly connected with a mounting plate; and the bottom of the mounting plate is fixedly connected with a plurality of sliding rods. Through the arrangement of the mounting adjusting mechanism, a mold in the heating curing mechanism can be replaced and maintained, and meanwhile, through the arrangement of the synchronous transmission mechanism, the traction mechanism and the cutting mechanism can work synchronously, so that the use effect of the pultrusion equipment is improved.
Owner:广东华彩复合材料有限公司

Die bonder and semiconductor device packaging method thereof

The invention discloses a die bonder. The die bonder comprises a workbench; wherein a placing table, a conveying device for conveying a semiconductor device to be dispensed, a clamping device for transferring the semiconductor device to be dispensed between the placing table and the conveying device, and a dispensing device are arranged on the workbench; the dispensing device comprises a rack capable of getting close to and away from the containing table in a reciprocating mode, a dispensing head arranged on the rack and a detection device used for detecting the dispensing quality of the semiconductor device. The detection device comprises a camera and a processing module in communication connection with the camera; the processing module comprises an image processing unit, an abnormal point recognition unit and a poor dispensing analysis unit. The die bonder is high in automation degree and dispensing precision, and the finished product rate of products is increased. The invention further discloses a semiconductor device packaging method, high-hardness packaging colloid packaging is carried out on the device after high-viscosity gel is dispensed on the device through the die bonder, the packaged device has both reliability and protection performance, and the packaging method is simple and good in compatibility.
Owner:佛山市顺德区蚬华多媒体制品有限公司

High-precision heavy-load carrying operation device

The invention relates to the technical field of carrying work, and discloses a high-precision heavy-load carrying operation device. The high-precision heavy-load carrying operation device comprises aframe part, a moving part, a clamp part and an electric control system, the frame part comprises stand columns arranged on the two sides of the moving part; a girder is arranged between every two adjacent stand column, a rail is laid on the girder, the moving part comprises a bridge frame spanning between the two side rails, the bridge frame is driven by a first walking mechanism to walk along therail; the moving part further comprises a lifting mechanism arranged on the bridge frame to move vertically, and the clamp part is connected to the lifting mechanism; one end of the moving part is provided with a laser ranging sensor, the frame part is provided with a laser reflecting plate corresponding to the laser ranging sensor at the end position of the rail, and the first walking mechanism,the lifting mechanism and the laser ranging sensor are all in signal connection with the electrical control system. The overall framework of the equipment is suitable for large-range material carrying, the operation area is wider, the walking distance is not limited, the maximum span is more than 20 m, the maximum load is more than or equal to 50 t, and the equipment carrying precision is smallerthan or equal to + / -5 mm.
Owner:湖南天桥嘉成智能科技有限公司

Special three-hole and double-thread punching and threading all-in-one machine for archives room

The invention discloses a special three-hole and double-thread punching and threading all-in-one machine for an archives room. The special three-hole and double-thread punching and threading all-in-one machine comprises a rack, and a stand column is arranged on the rack. A punching mechanism moving up and down is movably arranged on the stand column, and a driving device dynamically connected withthe punching mechanism is arranged on the stand column. A movable positioning clamping plate moving back and forth is correspondingly arranged at the lower part of the punching mechanism, and a powermechanism dynamically connected with the movable positioning clamping plate is arranged on a rack. A switch of the power mechanism is arranged at the upper part of the punching mechanism, and the switch is turned on along with the rising of the punching mechanism and is turned off along with the falling of the punching mechanism. A rotating shuttle forming a lock stitch with the punching mechanism is arranged at the lower part of the rack, and the rotating shuttle is dynamically connected with the driving device. The special three-hole and double-thread punching and threading all-in-one machine is convenient in use, reduces the difficulty of operation, and achieves the technical effects of realizing punching and threading at one time and improving the binding quality.
Owner:LINQU POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1

Extensible type protective door

The invention discloses an extensible type protective door. The extensible type protective door comprises the protective door, a door beam, slide rails, a lower rail, a power mechanism and the like and is characterized in that the protective door is provided with two or more door leaves; the slide rails which are arranged on the door beam are corresponding to the door leaves; the number of the slide rails is more than two; the extensible type protective door is also provided with moving devices for the door leaves; a protective cover is arranged on the upper portion of the last door leaf. The extensible type protective door has the advantages of achieving synchronous operation of the three leaves due to the fact that three identical automatic door beams are organically combined together; leaving large room (more than 3500) for a device moving area when the protective door is completely opened due to the fact that the three door leaves are completely superposed; effectively satisfying an operating room requirement for cleansing when the protective door is completely closed due to the fact that reliable leakproofness of the protective door can completely isolate two adjacent space; effectively blocking harmful radiation of an X-ray radiated from a CT (Computed Tomography) to adjacent areas.
Owner:JINAN DAHUA YITE ENVIRONMENTAL PROTECTION ENG

Photosensitive material plate output device capable of laying protective paper synchronously

The invention relates to a photosensitive material plate output device and a photosensitive material plate output device capable of laying protective paper synchronously. The photosensitive material plate output device comprises a rack, wherein a first conveying device of horizontally arranged photosensitive material plate monomers is arranged under the rack; a paper coiling roller is arranged on the rack; a second conveying device of paper is arranged under the coiling roller; a paper cutting knife is arranged on the second conveying device; an output end of the second conveying device is arranged on the first conveying device; the transferring direction of the second conveying device is obliquely arranged and is close to the upper surface of the first conveying device; the second conveying device is provided with second power for driving the second conveying device to move; a probe is arranged on the first conveying device; the cutting knife and the second power are connected with a control device; and the first conveying device and the second conveying device are connected with the control device and are arranged in a box. The photosensitive material plate output device capable of laying protective paper synchronously has the advantages of high production efficiency and low labor intensity.
Owner:CHANGGE HUIDA PHOTOSENSITIVE MATERIAL

Full-automatic intermittent-conveying and cutting machine for traditional Chinese medicine

The invention relates to a full-automatic intermittent-conveying and cutting machine for traditional Chinese medicine. The full-automatic intermittent-conveying and cutting machine comprises a rack device, a cutting device and an intermittent conveying device. The intermittent conveying device and the cutting device are installed in the rack device. The rack device comprises a rack, a vertical frame, a cross girder, a feeding groove, a discharging groove, a motor, a speed regulating box, bolts, a belt, a first belt wheel and a pin, wherein the rack, the vertical frame, the cross girder, the feeding groove and the discharging groove are welded and fixed into a whole. The motor and the speed regulating box are fixed into the rack through the bolts, and connected through the belt. The first belt wheel is fixed to the speed regulating box through the pin. The intermittent conveying device comprises an intermittent rotating assembly, a conveying belt assembly and a roller conveying assembly. The full-automatic intermittent-conveying and cutting machine is reasonable in structural design, the cutting device and the intermittent conveying device are tightly coupled, and the traditional Chinese medicine is conveyed and cut synchronously. In cutting application, through intermittent conveying of the traditional Chinese medicine, the cutting thickness for the traditional Chinese medicine can be regulated by controlling the conveying speed.
Owner:桐君堂药业有限公司
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