Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

191results about How to "Easy to control in real time" patented technology

Intelligent early warning system for closing of train and early warning method of intelligent early warning system

The invention discloses an intelligent early warning system for the closing of a train and an early warning method of the intelligent early warning system. The intelligent early warning system comprises an early warning server. The early warning method comprises the following steps: receiving train position information transmitted by vehicle-mounted equipment through a public wireless network by the early warning server; transmitting early warning information of the closing of the train to a path opening terminal through the public wireless network by the early warning server, and besides receiving path opening position information collected by the path opening terminal; also transmitting the early warning information of the closing of the train to mobile equipment of working personnel through the public wireless network by the early warning server, and besides receiving position information collected by the working personnel or an operation point. The early warning server is arranged in a machine room and connected with accession equipment of the public wireless network through optical fibers and twisted-pair lines. The intelligent early warning system and the early warning method, which are disclosed by the invention, have the benefits of being suitable for a line zone with automatic blocking and an in-station accouterment monitoring system and being also suitable for full-automatic intelligent early warning system for the closing of the train in a non-automatic blocking zone.
Owner:济南雷森科技有限公司

Internet of vehicles based hierarchical energy management control method for hybrid vehicle

The invention discloses an internet of vehicles based hierarchical energy management control method for a hybrid vehicle. An upper controller acquires a range of a target speed of the hybrid vehicle on the basis of traffic signal light timing and sets the target speed of the hybrid vehicle as an upper limit of the range of the target speed, and a fast model prediction algorithm is provided for predicating an optimal target speed sequence within a given time window. Compared with the prior art, the internet of vehicles based hierarchical energy management control method for the hybrid vehicle has the advantages that by predication of the optimal target speed of the hybrid vehicle on the basis of traffic signal light timing, stopping or collision of the hybrid vehicle at a red light can be effectively avoided; by acquisition of the optimal target speed sequence according to the fast model prediction algorithm, time cost of model prediction is reduced on the premise that predicated data precision and fuel economy of the hybrid vehicle are guaranteed, and program execution efficiency is effectively improved.
Owner:HEFEI UNIV OF TECH

Five-freedom-degree hybrid robot

The invention relates to a five-freedom-degree hybrid robot which comprises a fixing frame, a moveable platform, a positioning head, a first branch chain, a second branch chain and a third branch chain, wherein the positioning head is connected with the tail end of the moveable platform; the first, second and third branch chains are same in structure; each of the branch chains comprises a first hinge, a second hinge, a connecting rod and a driving device arranged at one end of the connecting rod; the first branch chain and the second branch chain are symmetrically connected with the two sides of the upper end of the fixing frame through own first hinges; the third branch chain passes through the fixing frame, is located under the first branch chain and the second branch chain and is connected with the middle part inside the fixing frame through the own first hinge; one ends of the first, second and third branch chains away from the driving device are respectively connected with the moveable platform through the corresponding second hinges; moveable planes of the first branch chain and the second branch chain are located in a same plane or are two mutually parallel planes; and the moveable planes of the first branch chain and the second branch chain are vertical to the moveable plane of the third branch chain. The five-freedom-degree hybrid robot is conveniently controlled in real time, the rigidity of the mechanism is effectively increased and the size of a cantilever is reduced.
Owner:TIANJIN UNIV

Intelligent portable hand-held vision screening instrument and optometry method

The invention belongs to the technical field of medical optometry equipment and especially relates to an intelligent portable hand-held vision screening instrument and an optometry method. The instrument comprises an optometry system, a camera shooting system, an integral control system and a wireless communication system which are connected to a central processing unit, wherein the optometry system is composed of a light source, a diaphragm and a lens and is used for emission of the light source, diaphragm isolation and lens transmission; functions of distance and temperature measurement are achieved through combination of an ultrasonic ranging and a temperature sensor; the optometry system can shoot eye images by an infrared lens and a visible light lens; the integral control system executes different modes including a preview mode, a camera shooting mode and a checking mode; the wireless communication system carries out card reading functions of a social insurance card and a medical service card as well as wireless data transmission; and the central processing unit carries out collection and processing of data, image recognition, gray analysis and diopter computation. The intelligent portable hand-held vision screening instrument is connected to an intelligent medical cloud platform by a wireless communication system.
Owner:廖亮举

Self-adaptive variable molten bath laser additive material manufacturing technology

The invention relates to the technical field of laser machining, in particular to a self-adaptive variable molten bath laser additive material manufacturing technology. The technology comprises the following steps that by means of laser fusing tests, laser powers are adjusted, molten bath widths corresponding to the different laser powers are recorded, and thus a technology database corresponding to molten bath sizes when the different laser powers are different is constructed; and a part three-dimensional model is set up, layering software carries out layering processing on the part three-dimensional model, and plane outline machining information on each layer of a part is obtained. By adjusting the level of the laser powers in real time, the continuous change of the size of a molten bath is achieved, thus, the molten bath can adapt to the change of the wall thickness of the thin-wall part, a variable width molten way is directly formed through one-time scanning instead of multi-pass lap joint, then the variable thickness thin-wall part is formed through layer-by-layer overlapping, and the technology has the beneficial effects that the technological parameter variable is small, response is fast, and the forming efficiency is high.
Owner:安徽煜宸激光技术有限公司

Multi-scale test machine for measuring lubricating oil film by optical interference method

The invention discloses a multi-scale test machine for measuring lubricating oil film by optical interference method, comprising a base, an electric motor, a drive device, a supporting device and a loading device; the motor drives a flat glass horizontally and slidingly arranged on the base to move horizontally to and fro through the drive device; the supporting device is a floating supporting device and supports the test pieces to be rotatably contacted with the lower surface of the flat glass; the loading device is a lever type loading device and supports the floating supporting device to cause the test pieces to exert pressure and load on the flat glass, upper part of which is fixed with a microscope for measuring oil film; lens of the microscope aligns to the rotatable contact line between the flat glass and test pieces. The invention has the advantages of pure rotating, continuousness and multi-scale, overload, simple structure and strong practicality.
Owner:SHANGHAI UNIV +1

Adaptive output feedback inverse control method for piezoelectric precision position platform

ActiveCN106773694AOvercoming the "differential explosion" problemSimple structureAdaptive controlState observerControl engineering
The invention discloses an adaptive output feedback inverse control method for a piezoelectric precision position platform. An adaptive output feedback inverse control scheme based on a neural network can be achieved and is firstly designed according to nonlinear hysteresis systems. The inverse control method is characterized by including the steps: estimating states of a system by a designed high-gain state observer, and processing uncertain items in system and environment disturbance; testing on the piezoelectric precision position platform through the control scheme; adjusting the state observer and the initial conditions of adaptive laws of unknown parameters to achieve arbitrarily small L norms of following errors. The piezoelectric precision position platform is a three-level system, has system output and can be measured.
Owner:NORTHEAST DIANLI UNIVERSITY

Cause and effect reason map construction method based on integration of multiple neural networks

The invention belongs to the technical field of network information. The invention relates to a cause and effect reason map construction method based on integration of multiple neural networks. The method comprises the following steps of: marking data of an obtained corpus by adopting a BIO sequence marking system and segmenting the data; performing event extraction by using a BERT + Bi-LSTM + Attention + CRF model, combining events based on event extraction elements (O, V) and defining event pairs and rule features during event relationship extraction, and extracting causal relationships in combination with the rule features between the events and the Bi-GRU model; carrying out similarity calculation based on event pairs; selecting two events with the highest scores to be combined into a(event i, similarity, event j) triple; extracting triples of combinations (reason events, cause and effect, and result events) on the basis of event relationships; then, adopting a Neo4j graph database for persistent storage, building a reason logic knowledge base is built to construct a cause and effect reason graph for hot topics, the constructed cause and effect reason graph can deeply extractsemantic information, and real-time control over hot events by related supervision departments and personal users is facilitated.
Owner:QINGDAO UNIV

Novel modeling and controlling method of drain pipe network hydraulics system

The invention relates to a novel modeling and controlling method of a drain pipe network hydraulics system. The conventional computation method is more time-consuming and not beneficial to real-time control. The novel modeling and controlling method disclosed by the invention is a method for rapidly computing the water depth of a pipeline by utilizing a transfer function model. Through the adoption of the method disclosed by the invention, the regional sewage overflow pollution is minimized on the premise of fully utilizing all water storage equipment of a system so that the urban flood-prevention and anti-waterlogging capabilities are improved; in addition, a basis is settled for the conversion from manual operation to automatic operation of a combined sewerage system; meanwhile, the situation that sewage overflow happens while residual water storage systems are idle at a specific region is avoided; and therefore the regional sewage overflow pollution is finally minimized.
Owner:ZHEJIANG SUPCON INFORMATION TECH CO LTD

Method for controlling glide flying ballistic curve damping

The invention discloses a method for controlling glide flying ballistic curve damping. The method comprises the following three major steps: step 1: taking into consideration influence of earth curvature, ignoring influence of earth rotation, studying three degree-of-freedom kinematical equation of gliding of an aircraft, and acquiring condition of furthest distance of powerless gliding of the aircraft; step 2: based on the atmosphere model and the aircraft aerodynamic force model already known, performing force analysis on the longitudinal plane of the aircraft under stable gliding condition, and acquiring stable gliding ballistic curve angle of inclination gamma*; step 3: adding feedback to the control instruction, introducing ballistic curve damping control. The method is a guidance method enabling stable gliding of the aircraft, and is applicable to aircrafts having a glide ballistic curve, including a cannonball of a low speed and a short range as well as a long-distance, reentry, and hypersonic-velocity aircraft.
Owner:BEIHANG UNIV

Full-domain constant-balance overload six-degree-of-freedom parallel mechanism

Provided is a full-domain constant-balance overload six-degree-of-freedom parallel mechanism. The full-domain constant-balance overload six-degree-of-freedom parallel mechanism comprises a moving platform, a fixing platform, a weight-bearing platform, six driving branches of a same structure and three weight-bearing branches of a same structure. The six driving branches are connected with the moving platform and the fixing platform to form a parallel driving mechanism, the three weight-bearing branches are connected with the weight-bearing platform and the fixing platform to form a parallel balancing mechanism, and the center of the weight-bearing platform is connected with the moving platform through a second spherical hinge. The six driving branches are of a UPS structure, each driving branch is composed of an electric cylinder, a first omni-directional hinge and a first spherical hinge. The three weight-bearing branches of a PRUR structure, each weight-bearing branch is composed of a balance hydraulic cylinder or balance air cylinder, a first rotating pair, a second omni-directional hinge and a second rotating pair. On the condition that a input force of the balancing mechanism is maintained to be constant, all poses in the whole space, namely, full-domain constant-balance overload six-degree-of-freedom parallel mechanism achieves a constant gravity balance performance in full domains, and the full-domain constant-balance overload six-degree-of-freedom parallel mechanism is high in the weight-bearing capacity and the positioning accuracy, and simple to control.
Owner:YANSHAN UNIV

Middle point voltage control device and method based on modulation wave interval division

The invention discloses a middle point voltage control device and method based on modulation wave interval division. The device comprises a three-level inverter, a digital processing control module and a driving circuit, wherein the digital processing control module comprises a sampling unit, a closed-loop control unit, a sine pulse width modulation unit, a modulation wave interval division unit and a zero-sequence component calculation unit. The method comprises steps that an offset angle of a zero-crossing point after adding a zero-sequence component to a three-phase modulation signal is calculated; the modulation wave interval is divided, and the zero-sequence component required to suppress the midpoint voltage fluctuation is calculated; the sign of the zero sequence component is determined through comparing instantaneous voltages of upper and lower capacitors of the DC side; the zero-sequence component is added to the three-phase modulation signal and is then processed by the sinepulse width modulation unit to acquire a pulse width modulation control signal, and a switch tube of the three-level inverter is controlled by the driving circuit for operation. The device is advantaged in that hardware cost is low, accurate control is realized, the application scope is wide, the midpoint voltage fluctuation can be effectively inhibited, and the distortion rate of the network current is reduced.
Owner:NANJING UNIV OF SCI & TECH

Comprehensive controlling method and comprehensive controlling system for temperature field and air pressure field of grate bed of grate

The invention discloses a comprehensive controlling method and a comprehensive controlling system for a temperature field and an air pressure field of a grate bed of a grate, and relates to the field of measurement and control technology of metallurgical industry. The technical proposal adopted by the invention comprises the following steps: designing a hot airflow flowing route of the grate; determining the air pressure gradient relation among sections of the grate bed of the grate; determining the temperature gradient relation among the sections of the grate bed of the grate; establishing a comprehensive control strategy based on an air pressure gradient field and a temperature gradient field of each section of the grate bed of the grate; and establishing the comprehensive controlling system for the temperature field and the air pressure field of the grate bed of the grate. Through the comprehensive control of the temperature field and the air pressure field of the grate bed of the grate, the real-time control of the temperature gradient field of the grate bed of the grate is easier and steadier to improve the utilization efficiency of hot wind energy, improve the compressive strength of pellets, ensure the quality of the pellets and prolong the service life of the grate.
Owner:JIANGSU UNIV

Fully-isotropic parallel robot mechanism with three-dimensional movement function and two-dimensional rotation function

The invention discloses a fully-isotropic parallel robot mechanism with a three-dimensional movement function and a two-dimensional rotation function. The fully-isotropic parallel robot mechanism comprises a fixed platform (1), a movable platform (19) and four branched chains connected between the two platforms. The four branched chains are located on the four sides of the movable platform, the first branched chain is composed of a movable pair, a parallelogram hinge, three rotary pairs and four connecting rods, and the second branched chain and the fourth branched chain are completely the same in structure and are each composed of two movable pairs, three rotary pairs and four connecting rods. The third branched chain is formed by a movable pair perpendicular to the fixed platform, five rotary pairs and five connecting rods. Five drive pairs include the movable pair (P<11>), the movable pair (P<21>), the movable pair (P<31>), the rotary pair (R<43>) and the rotary pair (R<13>) respectively, and the input speed and the output speed of five-freedom-degree motion of three-dimensional movement and two-dimensional rotation are in one-to-one correspondence linear relation. The fully-isotropic parallel robot mechanism has the beneficial effects that control is easy, no drive singularity exists, and motion is completely decoupled; and the mechanism can be used for a five-freedom-degree virtual axis parallel machine tool.
Owner:JIANGNAN UNIV

Pulse injection-based three-phase switched reluctance motor position sensorless control method

The invention relates to the technical field of position sensorless control of switched reluctance motors, in particular to a position sensorless control method for three-phase switched reluctance motors based on pulse injection. The invention proposes a three-phase switched reluctance motor position sensorless control method based on pulse injection, which is suitable for the control of three-phase switched reluctance motors. Phase chopper control is performed, the phase current is detected by the current sensor, and the current slope difference is calculated. Then, the three-phase equivalent inductance is obtained according to the current slope difference, and the inductance vector is synthesized. Finally, the rotor position information is extracted from the inductance vector to obtain the rotor speed. The invention has the advantages of simple structure and easy realization, greatly reduced calculation amount, and high reliability and precision.
Owner:XIAMEN UNIV OF TECH

Method for coupling denitrifying dephosphatation and partial nitrification

ActiveCN103708682AFlexible operationFacilitates real-time process controlMultistage water/sewage treatmentNitrogen gasSewage
The invention discloses a method fpr coupling denitrifying dephosphatation and partial nitrification, and belongs to the field of municipal wastewater treatment. Firstly, raw water enters an (A / A / O)-SBR reactor; carbon pick-up synthesis polyhydroxyalkanoate (PHA) and phosphorus release reaction at an anaerobic phase are carried out; oxidation-reduction potential (ORP) is controlled at -30mv to -240mv; dissolved oxygen (DO) is smaller than or equal to 0.2mg / L, and then nitrifying reflux liquid containing NO2<-> from N-SBR is injected to carry out anaerobic denitrifying dephosphorization reaction; the ORP is controlled at -90mv to -210mv; the DO is smaller than or equal to 0.2mg / L. The flow of the nitrifying reflux liquid is adjusted at the stage according to the anaerobic phosphorus-release condition. The transient aeration, nitrogen stripping and aerobic phosphorus absorption are carried out after complete reaction; the DO is controlled to 2-3mg / L; sediments are stilled; discharged water enters the N-SBR reactor to carry out aerobic aeration. Nitration is controlled at a short-range stage through an 'ammonia valley' on a pH curve and an 'ammonia-nitrogen jump point' on a DO curve in the process; still deposition is carried out after the reaction is ended; a part of supernate is returned and the other part is discharged; the discharged water quantity is equal to the initial water inflow of the system. The denitrifying dephosphatation principle and the partial nitrification principle are applied, energy conservation and consumption reduction are achieved, and the method is applicable to a domestic wastewater with low C / N ratio, so as to achieve a synchronous and deep nitrogen and phosphorus removal effect.
Owner:BEIJING UNIV OF TECH

Tiny discharge gap bi-feedback adaptive analytic fuzzy servo control method

InactiveCN101695777AImprove servo control performanceAchieve rapidityElectric circuitsDischarge rateControl theory
The invention discloses a tiny discharge gap bi-feedback adaptive analytic fuzzy servo control method, and belongs to the technical field of non-traditional micromachining. In the method, interpolar voltage or current signals which are fed back in real time are compared with a control target center so as to obtain signal errors and the change of the errors; a self regulating factor of an analytic fuzzy control rule in the whole field is dynamically adjusted, and the discharge gap servo control performance is improved; and then, in order to adapt to machining conditions and control errors introduced by process random change, a discharge statistics and parameter correction feedback channel is utilized to store and count an open circuit rate and a short circuit rate, and a fast convergence algorithm directly proportional to the open circuit rate and the short circuit rate is adopted, so that the control target center and an electrode advancing and retreating speed scale factor adaptively tend to be optimal simultaneously, and the open circuit rate tends to be equal to the short circuit rate and is the minimum, namely the discharge rate tends to be optimal. The method realizes the quickness, stability and accuracy of tiny discharge gap servo control and improves micro electrical discharge machining efficiency.
Owner:TSINGHUA UNIV

Improved dual voltage control method and device thereof for matrix converters

The invention provides an improved dual voltage control method and a device thereof for matrix converters. The method comprises the following steps: re-dividing voltage sectors; carrying out custom calculation on variables required by duty ratio and ranking the variables; calculating the duty ratio of the matrix converter system according to the general calculation formula of the duty ratio; obtaining the duty ratio of each two-way power switch based on the corresponding relation between the duty ratio of the matrix converter system and that of each two-way power switch in a switch matrix; calculating the turn-on time of each two-way power switch in real time after the duty ratio of each two-way power switch is multiplied by the switch cycle, and realizing on-off control of the matrix converter. The device comprises an input voltage sampling unit, a DSP control circuit, a CPLD switch gate circuit, a detecting unit of output current direction and a drive circuit. The invention simplifies the system switch combination and the system has little amount of calculation, thus improving the efficiency and real-time and being suitable for application in controlling the matrix converters in the field of AC variable frequency speed regulating.
Owner:SOUTH CHINA UNIV OF TECH

5G energy internet virtual power plant economic dispatching method based on edge intelligence

The invention discloses a 5G energy internet virtual power plant economic dispatching method based on edge intelligence, and belongs to the technical field of virtual power plant cost optimization. According to the invention, the problems of how to integrate new energy to reduce the cost of the power system and reduce the consumption of communication are solved. According to the invention, machinelearning and edge calculation are combined, and an edge intelligent structure is provided for solving the problem of economic dispatch in the energy internet vpp. Compared with traditional edge computing, the structure inherits original characteristics, the burden of cloud computing is reduced, and the computing capacity of edge computing is improved. By splitting the model and deploying part ofthe model at the terminal, real-time control can be conveniently carried out, and the cost of the power system is reduced. Due to mutual transmission between the split model and the corresponding model, only part of information and gradient information are effectively transmitted, communication consumption is reduced, and the requirement for the communication environment is reduced. The method canbe applied to economic dispatching of the virtual power plant.
Owner:STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY +1

Five-degree-of-freedom hybrid robot based on 2R1T parallel mechanism

A five-degree-of-freedom hybrid robot based on a 2R1T parallel mechanism comprises a fixed platform, a movable platform, an L-shaped vertical rack, a moving platform, three branch chain chains and a single-degree-of-freedom swing head. The movable platform is arranged on the fixed platform. The L-shaped vertical rack is arranged on the side face of the fixed platform. The three branch chain chains are arranged between a top platform and the moving platform of the L-shaped vertical rack. The single-degree-of-freedom swing head is arranged under the moving platform. The first branch chain and the third branch chain are identical in structure. The axis, close to the L-shaped vertical rack, of a U pair of the second branch chain is parallel to the axes of two revolute pairs of the first branch chain and the third branch chain. The axis, close to a connecting rod, of the U pair is parallel to the axis of the revolute pair of the second branch chain and perpendicular to the axis of a sliding pair. The axis of the revolute pair of the second branch chain is parallel to the axes, close to the moving platform, of the two U pairs of the first branch chain and the third branch chain. According to the five-degree-of-freedom hybrid robot based on the 2R1T parallel mechanism, the structure is simple, real-time control is facilitated, the working space of a machine tool can be enlarged easily, and the sensitivity of the machine tool is improved.
Owner:YANSHAN UNIV

Linear modeling method of switch reluctance motor memristor

The invention relates to a linear modeling method of a switch reluctance motor memristor. A linear phase inductance characteristic element of a switch reluctance motor is established by adopting an in-phase operational amplifier circuit and an anti-phase operational amplifier circuit; the angular velocity of the switch reluctance motor is integrated by a proportional circuit and an integral circuit to obtain a rotor position angle of the switch reluctance motor memristor to be used as the input of the linear phase inductance characteristic element of the switch reluctance motor; the phase inductance of the switch reluctance motor is obtained in accordance to the output of the established linear phase inductance characteristic element of the switch reluctance motor; a current reversal circuit is connected between the input end of a multiplier and the output end of the multiplier; the output end of the linear phase inductance characteristic element of the switch reluctance motor is connected to the other input end of the multiplier; the input voltage is accessed into the input end of the multiplier; and a relation exists between the output current and the input voltage as well as between the output current and the phase inductance value. According to the linear modeling method disclosed by the invention, the resistance value of the memristor changes along with change of the rotor position. The linear modeling method lays a foundation on establishment of a complete switch reluctance motor circuit and is beneficial to real-time control.
Owner:CHINA UNIV OF MINING & TECH

Intelligent toy robot control system

The invention discloses an intelligent toy robot control system, which is characterized in that the control system comprises a circuit control system and a software control system, wherein a main control unit circuit, a head control unit circuit and a lower control unit circuit of the circuit control system are mutually connected through system buses; an Android operation system core and Android application software are used. The intelligent toy robot control system has the advantages that the control is modularized; the structure is compact; all unit circuits are mutually and harmoniously controlled in a system bus mode; the work division is cooperated; the system is favorably and flexibly expanded. Through connection with Internet, the functions of on-line updating, on-line expansion, network interaction, network monitoring and the like are realized; parents can conveniently master the conditions of children in real time. Relevant APP is flexibly installed or uninstalled; multimedia can enrich the facial expression in a way of combination of form and spirit; good interaction with children is realized, so that the children can achieve the study effect in the game playing process; the goal of education is achieved; the creativity of the children can be better inspired.
Owner:王华

Robust self-adaptive dynamic surface control method for adjustable metal cutting system

InactiveCN103792849AEliminate the "differential explosion" problemSimple structureAdaptive controlHysteresisNeural network system
A robust self-adaptive dynamic surface control method for an adjustable metal cutting system is characterized by comprising the steps of description of an adjustable metal cutting system mathematical model, a hysteresis model and a neural network system, design of a self-adaptive dynamic surface controller and the like. By means of an introduced error transformation function, control accuracy can be specified at will, so that accurate control over the cutting depth of a cutter is realized; under the condition that a system model is not completely known, approach to unknown terms is realized through an RBF neural network; estimation of the norm of an unknown parameter vector is used for replacing estimation of an unknown parameter ground vector, so that the computation burden of the system is greatly relieved; by the adoption of the strategy that the self-adaptive dynamic surface technology is combined with the error transformation function and an RBF, the hypothesis of time lag is relaxed, it is guaranteed that tracking errors and the transient process can be within any specified index at the same time, the problem of 'differential explosion' of the inverse method is eliminated, semi-global uniform ultimate boundedness of system signals is guaranteed, and the robust self-adaptive dynamic surface control method has the advantages of being scientific and reasonable, high in control accuracy, applicable and the like.
Owner:NORTHEAST DIANLI UNIVERSITY

Massage robot actuating mechanism

The invention discloses a massage robot actuating mechanism, and relates to the field of medical machines. A main mechanism is formed by serially connecting two translational guide rails with a five degree-of-freedom mechanical arm, a two degree-of-freedom parallel mechanism comprising a translational mechanism and a rotary mechanism, and a crank rocker mechanism. The massage robot actuating mechanism comprises a sliding pair A (16) of the two translational guide rails, a sliding pair B (17) of the two translational guide rails, a fixed platform (14), a moving platform (9), the parallel mechanism and a planer rocker mechanism. The two translational guide rails are matched with the two degree-of-freedom parallel mechanism comprising the translational mechanism and the rotary mechanism and the crank rocker mechanism to complete actions such as rolling, pressing, rubbing, vibrating and patting in massage manipulation together. The mechanism has the advantages of simple and compact structure, high rigidity, flexible rotation, good dynamic performance, large pivot angle of the moving platform, low degree of freedom, simple kinematics analysis and easy real-time control.
Owner:张家港科康智能科技有限公司

Full-automatic diamond saw blade welding machine

The invention discloses a fully automatic diamond saw blade welding machine, which comprises a first mechanical arm, a second mechanical arm and a support arm, the first mechanical arm and the second mechanical arm are located on one side of the support arm, and the second The mechanical arm is located above the first mechanical arm, one end of the first mechanical arm is fixedly connected to the support arm, one end of the second mechanical arm is slidingly connected to the support arm, and the first mechanical arm is provided with a The moving mechanism of two mechanical arms, and the first mechanical arm is connected with the second mechanical arm through the moving mechanism. The first rotating seat on the side of the stepper motor. The invention has the advantages of simple structure, high efficiency and practicality, more stable clamping of the welding wire, and is not easy to fall off, and the buffer spring can prevent the welding wire from being pinched due to excessive clamping force, thereby meeting people's use requirements.
Owner:ZHENGZHOU JIACHEN CHEM TECH CO LTD

Method for keeping optical etcher high speed synchronous control time sequence signal completeness

This invention discloses a method for maintaining the integrality of high speed synchronous control time sequence signals of an aligner, in which, a synchronous bus controller ensures the impedance control of high speed signals in lamination, besides, a supply plane of the bus controller is adjacent to the ground in lamination to form a plate condenser and the signal layer is adjacent to the ground, which realizes synchronous signal control to the exposing scanning to a step projecting aligner and takes the synchronous bus data transmission as the primary standard of time to strictly control the time point of each signal with its minimum time unit so as to realize real time and synchronization among signals of sub-modules.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD

Method for producing L-threonine

ActiveCN102304553AAllows for precise controlEasy to achieve optimal controlBacteriaMicroorganism based processesBiotechnologyProduction rate
The invention discloses a method for producing L-threonine. The method comprises the following steps of: performing fermentation culture on strains capable of producing the L-threonine to obtain the L-threonine, wherein in the fermentation culture process, a period before the growth quantity of thalli is not increased is used as a first stage, and a period in which the growth quantity of the thalli is not increased is used as a second stage; at the first stage, adding nutritional ingredients into a fermentation culture system in an index feed supplement mode on the premise of realizing the optimal production rate of the strains; and at the second stage, adding the nutritional ingredients into the fermentation culture system in a constant speed feed supplement mode on the premise of realizing the maximum production rate of the L-threonine by using the strains. The method has the advantages that: accuracy control and optimizing control are convenient to realize; the operability is high,and the production process is convenient to regulate and control in real time; and the production efficiency can be further improved. The method has a great significance for the industrial productionof the L-threonine.
Owner:INST OF MICROBIOLOGY - CHINESE ACAD OF SCI

Method for controlling process parameter and related data stream in real time

InactiveCN101846993AEasy to control in real timeSimplified acceleration and deceleration controlNumerical controlAcceleration decelerationReal-time computing
The invention discloses a method for controlling the process parameter and the related data stream in real time, comprising the following steps: (1) establishing a distribution matrix for the multi-dimensional related data stream which comprises a multi-axis data stream and a parameter data stream by a PC system; (2) calculating a time value according to the multi-axis data stream and the feed speed by the PC system, adding the time value to the distribution matrix for the multi-dimensional related data stream, and formatting the distribution matrix for the multi-dimensional related data stream; (3) sending the formatted distribution matrix for the multi-dimensional related data stream to a programmable data stream controller by the PC system; (4) writing the time value into a speed timerand the multi-axis data stream and the parameter data stream into a data stream driver by the programmable data stream controller; and (5) controlling the data stream driver to send the multi-axis data stream and the parameter data stream to an executing mechanism by the programmable data stream controller at the given operation speed according to the set of the speed timer. The invention simplifies the real-time control of the related data stream as well as the real-time control and the acceleration-deceleration control of the process parameter.
Owner:JIANGXI FUTURE BIOMASS ENERGY CO LTD

Preparation method for dry abalone

The invention discloses a preparation method for dry abalone, relating to the technical field of drying processing of marine products. The method comprises the following steps: selecting raw materials; removing shells to take meat; cleaning; pickling; cooking with water; drying; and storing, thereby acquiring the end product. According to the preparation method for dry abalone, the operation is simple; the special fresh fragrance of the abalone is maintained and the abalone drying efficiency and the abalone drying quality are improved. According to the preparation method, the ultrasonic and solar-heat pump combined drying modes are combined, the respective functions and advantages are utilized in sections and the method has a great significance in increasing the abalone drying efficiency and abalone drying quality and saving cost.
Owner:PUTIAN HUILONG SEAFOOD

Controllable high-frequency-response probe test moving device for microwave and millimeter wave chips

The invention discloses a controllable high-frequency-response probe test moving device for microwave and millimeter wave chips. The controllable high-frequency-response probe test moving device comprises an industrial personal computer, a control module, a driver, a servo motor, a precision displacement device and a grating ruler. The precision displacement device comprises a precision workbench, a driver I, piezoelectric ceramics and a flexible hinge. The industrial personal computer is connected with the control module, the control module is connected with the driver, the driver is connected with the servo motor, the servo motor is connected with the driver through an encoder, the servo motor is connected with the precision workbench, the precision workbench is connected with the driver I, the driver I is connected with the piezoelectric ceramics, the piezoelectric ceramics is connected with the flexible hinge, the flexible hinge is connected with the workbench, the workbench is connected with the control module through the grating ruler, the driver I is connected with the control module, prior one-time positioning is changed into coarse positioning in which the motor drives a lead screw, and the precision displacement device belongs to secondary positioning of fine positioning. A fine positioning system is high in test speed, and on the premise of not affecting test acceptability, test cycle is shortened greatly, efficiency and productivity are improved, and test cost is reduced.
Owner:THE 41ST INST OF CHINA ELECTRONICS TECH GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products