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Non die-casting type digitalization fast manufacturing method
ActiveCN101259526ADigitalWith precisionProgramme controlCasting plantsNumerical controlManufacturing technology
The invention discloses a casting manufacturing method for general sand casting, which pertains to a digital-driven rapid manufacturing casting technology. The steps of the process are: the establishment of a model, the establishment of a casting system, the simulation of the casting process, the evaluation and the optimization; a molding sand with a certain proportion is mixed for preparation according to the requirements of the performance of a cast, thus preparing a sand billet; a procedure code is compiled according to the shape of a processing cavity, and the procedure code is input to a sand numerical control machine tool; the cast and a core are processed; the cast is cleared and detected; the core setting and the assembly of the cast are carried out; and the casting is carried out to form the cast. The casting manufacturing method adopts the casting and the cutting machining technologies for organic combination, which is a new cast production method. The numerical control cutting technology is adopted for processing the complicated large cast directly, which can not only eliminate the chain for manufacturing the mold, but can also improve the processing precision of the cast, reduce the thickness of the cast, improve the rigidity and reduce the weight; furthermore, the method has the green advantages of saving materials and reducing energy consumption.
Owner:ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
Work modal parameter identification method and device based on self-iteration principal component extraction
ActiveCN107271127AEfficient detectionAvoid timeDesign optimisation/simulationVibration testingSystem structureSlide window
The invention relates to a one-dimensional and three dimensional linear time invariant structure work modal parameter identification method based on self-iteration principal component extraction, a linear time-varying structure work modal parameter identification method based on slide window self-iteration principal component extraction, a fault diagnosis and health state detection method based on self-iteration principal component extraction work modal parameter identification, a work modal parameter identification testing device, and a work modal parameter identification device; the work modal parameter identification device can combine the one-dimensional and three dimensional work modal parameter identification method based on self-iteration principal component extraction, the linear time-varying structure work modal parameter identification method based on slide window self-iteration principal component extraction, and the equipment fault diagnosis and health state detection method, thus developing an embedded portable device. The method and device can effectively detecting the linear engineering structure work modal parameters online, can greatly reduce the time and memory expenditure, and can be easily applied on equipment fault diagnose, health monitoring, and system structure online real time analysis and optimization.
Owner:HUAQIAO UNIVERSITY
Universal miniature satellite-borne digital transponder terminal platform
ActiveCN107888278AHigh degree of generalizationSmall sizeRadio transmissionIntermediate frequencyDigitization
The invention discloses a universal miniature satellite-borne digital transponder terminal platform, and belongs to the technical field of aerospace measurement and control. The universal miniature satellite-borne digital transponder terminal platform comprises a radio frequency front end unit and a medium frequency and baseband signal processing unit, the radio frequency front end unit comprisesa receiving and transmitting distribution network module, a receiving channel module, a transmitting channel module and a local oscillator frequency source module, and the medium frequency and baseband signal processing unit comprises a high-speed analog-to-digital conversion module, a low-speed analog-to-digital conversion module, a digital-to-analog conversion module, a signal processing module,a configuration and refresh module, a clock generation module and a communication interface module. The universal miniature satellite-borne digital transponder terminal platform disclosed by the invention is a hardware platform used for realizing the functions of a measurement and control transponder, and the universal miniature satellite-borne digital transponder terminal platform supports a variety of measurement and control systems, has the characteristics of generalization, miniaturization and digitalization, is especially suitable for small satellite systems with high requirements for such factors as development cycle, volume, power consumption, cost and so on, and is an important improvement to the prior art.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Automated control system of granulation production line
ActiveCN103048975ARealize automatic controlWith automationProgramme total factory controlControl signalExecution control
The invention discloses an automated control system of a granulation production line. The automated control system comprises a computer system, a PLC (Programmable Logic Controller) system, a sensor system and an execution electric appliance system, wherein the computer system is used for displaying a flow process in real time and setting process parameters, the PLC system is used for collecting a control signal, sending a control signal, and realizing program control, logic processing and a control algorithm, a master station and a slave station, of the PLC system, are connected through a PROFIBUS (Process Field Bus) network, the PLC system is connected with the computer system through an industrial Ethernet, the sensor system is used for detecting the process parameters and transmitting signals and is connected with the PLC system, and the execution electric appliance system is used for executing the control instruction and is connected with the PLC system. The automated control system disclosed by the invention has multiple functions such as measurement, control, alarm, safety interlock, network communication, and production data management.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Multi-dimensional and multidirectional stress-strain monitoring system
The invention discloses a multi-dimensional and multidirectional stress-strain monitoring system. The multi-dimensional and multidirectional stress-strain monitoring system is characterized in that the multi-dimensional and multidirectional stress-strain monitoring system comprises an information collection device (1), an optical fiber monitoring device (2), a data analysis platform (3), a wire collection box (4) and an optical fiber sensing device (5) arranged in a structural body (6) to be monitored, the optical fiber sensing device (5) is used for sensing stress-strain information which is produced by the structural body (6) to be monitored under the action of external factors, the optical fiber monitoring device (2) is connected with the optical fiber sensing device (5) through the wire collection box (4) and conducts distributed type high-precision monitoring on the structural body (6) to be monitored, the information collection device (1) is connected with the optical fiber monitoring device (2) and used for capturing and storing optical fiber monitoring data and digitizing and visualizing monitoring information, and the data analysis platform (3) is connected with the information collection device (1) and used for providing the data preparation function, the graph viewing function, the data basic analysis function and the stress calculation function for a user. The system has extremely strong operability and strong realizability in practical use.
Owner:HOHAI UNIV
Vanadium dioxide ink for inkjet printing as well as preparation method and application of vanadium dioxide ink
The invention discloses vanadium dioxide ink for inkjet printing. The vanadium dioxide ink is prepared from the following components: nano vanadium dioxide powder, a dispersing agent, a bonding agent and a diluent, wherein the diluent is a mixed solution of dimethylbenzene and ethyl acetate or a mixed solution of the dimethylbenzene and butyl acetate. A preparation method of the vanadium dioxide ink disclosed by the invention comprises the following steps: carrying out mixed ultrasonic dispersion on the nano vanadium dioxide powder and the diluent to obtain vanadium dioxide dispersing liquid; carrying out mixed dispersion and grinding on the vanadium dioxide dispersing liquid and the dispersing agent in a sand mill; then adding the bonding agent, and continuously grinding in the sand mill until the materials are uniformly mixed, thus obtaining the vanadium dioxide ink for the inkjet printing. According to the vanadium dioxide ink disclosed by the invention, by regulating and controlling the particle size, stable dispersion, viscosity and surface tension of the nano vanadium dioxide ink, the vanadium dioxide ink suitable for the inkjet printing is successfully prepared; according to the nano vanadium dioxide ink disclosed by the invention, the smoothness of an inkjet printing process is ensured, a liquid drop shape can be formed during printing, a good printing effect is realized, and the requirement on film forming property of a printer is met.
Owner:NAT UNIV OF DEFENSE TECH
Online identification method for time-varying working mode of eigenvector recursion with forgetting factor
ActiveCN106446502AMonitoring Dynamically Changing PropertiesAvoid the disadvantage of needing to update the pivot model repeatedlySpecial data processing applicationsInformaticsFeature vectorKernel principal component analysis
The invention discloses an online identification method for working mode parameters of a linear time-varying structure of principal component analysis of eigenvalue eigenvector recursion with a forgetting factor. According to the method, thoughts of ''the forgetting factor'', ''online recursion'', ''eigenvalue eigenvector recursion'' and ''matrix rank-1 correction'' are introduced based on identification of working mode parameters of a linear time-invariant structure of classic principal component analysis, so that a time-varying transient modal vibration shape and an inherent frequency of the linear time-varying structure can be identified only from a non-stationary vibration response signal. An eigenvalue eigenvector is directly subjected to online recursion updating, so that the shortcoming that a principal component model needs to be repeatedly updated in a conventional method for identifying time-varying working mode parameters of recursive principal component analysis is overcome, the algorithm time and the space complexity are shortened and lowered, online real-time time-varying working mode parameter identification is realized, and dynamic change characteristics of the working mode parameters of the structure can be effectively monitored; and the method can be used for equipment fault diagnosis, health monitoring and system structure analysis and optimization.
Owner:HUAQIAO UNIVERSITY
Bone trabecula porous tantalum dental implant and preparation method thereof
PendingCN111494035AHigh porosityHigh strengthDental implantsAdditive manufacturing apparatusPorous tantalumDentistry
The invention relates to the technical field of biomedical metal materials and oral implantation medical instruments, and provides a bone trabecula porous tantalum dental implant and a preparation method thereof. The bone trabecula porous tantalum dental implant provided by the invention has a cylindrical structure and sequentially comprises a top functional area, a middle functional area and a bottom functional area from top to bottom. The top functional area is of a compact structure, the middle functional area has a bionic bone trabecula porous structure, and the bottom functional area hasa compact structure. The bone trabecula porous tantalum dental implant is integrally prepared by taking pure tantalum or medical tantalum alloy powder as a raw material through an additive manufacturing technology. The bone trabecula porous tantalum dental implant provided by the invention is high in friction force, close to human bone in strength and modulus, excellent in bone ingrowth effect, high in implantation stability and long in service life, is of an integrated structure, and has no risk of delamination and separation during implantation.
Owner:深圳大洲医学科技有限公司
Method and system for identifying working mode parameters of time-invariant structure
ActiveCN108594660AVerify reliabilityImprove recognition accuracySustainable transportationDesign optimisation/simulationNeighbor relationLearning rule
The invention discloses a method and system for identifying working mode parameters of a time-invariant structure. A method with isometric feature mapping and for identifying the working mode parameters of the three-dimensional time-invariant structure is adopted, can well express the nonlinear feature of the three-dimensional structure since the neighbor relation among near-earth distance measurement gauging points is adopted for an isometric feature mapping algorithm, has a good effect of identifying the working mode parameters of the complicated three-dimensional structure, and can be usedfor equipment fault diagnosis, health monitoring and system structure analysis and optimization. The invention further provides a method for identifying the working mode parameters of a Sanger neuralnetwork time-invariant structure. A method for identifying the working mode parameters of parallel pivot element extracting based on the Sanger neural network is used. Multi-order principal componentsare obtained through parallel iteration of the learning rate and the learning rule and easily embedded into multi-core hardware, and the method and system have high engineering value.
Owner:HUAQIAO UNIVERSITY
Carrier rocket hot commissioning control system
InactiveCN106773843AReduce volumeHigh degree of integrationProgramme control in sequence/logic controllersTest flowControl system
The invention relates to a carrier rocket hot commissioning control system which is composed of a back-end test device, a front-end test device, and a rocket-borne system device. The back-end test device and the front-end test device carry out data communication via the Ethernet. The front-end test device and the rocket-borne system device carry out data communication mainly via a 1553B bus. The back-end test device issues a control instruction to the front-end test device according to the test process. The front-end test device receives and executes the control instruction or forwards the control instruction to the rocket-borne system device for execution. The front-end test device collects a feedback signal thereof and a feedback signal of the rocket-borne system device at the same time, and sends the feedback signals to the back-end test device for display. The carrier rocket hot commissioning control system of the invention has the characteristics of being digital, intelligent, integrated and universal.
Owner:SHANGHAI AEROSPACE SYST ENG INST
Ultra-low temperature freezing cabinet temperature controlling device
InactiveCN1888750ALarge storage capacityEasy accessRefrigeration safety arrangementAutomatic controlRefrigerated temperature
This invention discloses a kind of temperature controlling device of super-low temperature refrigerator. The pressure sensor collects varieties of pressure signals of super-low temperature refrigerator system and connects to main controlling board interface through heat resistance module and data conductive wire. After centralized processing all the signals, the main controlling board controls high temperature compressor and low temperature through relay. The liquid crystal operating screen connects to R232 interface on the main controlling board through data line 232 cable. The signal- sending end connects to the relay and alarm. The main controlling board PLC communicating interface connects to local computer or network. The temperature in the box is automatically controlled. The temperature in the box, the temperature of absorbed air and the environmental temperature can be automatically displayed. This invention can also alarm under super high temperature and super low temperature. It also alarm when refrigerating system has troubles or power turns off. This invention can use printer to print. The computer can be used to remote control many medical super-low temperature refrigerator through data bus or internet.
Owner:WEIHAI ANTAI ELECTRONICS REFRIGERATION EQUIP CO LTD
Power monitoring system of fire fighting apparatus
InactiveCN104133460AGuaranteed reliabilityAvoid critical situations that don't workProgramme total factory controlSingle phaseVoltage sensor
The invention discloses a power monitoring system of a fire fighting apparatus. The power monitoring system comprises a fire fighting apparatus power monitor and sensors, the sensors comprise a single-phase voltage / current sensor, a voltage sensor and a current sensor, the fire fighting apparatus power monitor is communicated with the sensors through a CAN bus, and a Modbus-RTU communication protocol is provided for the outside. The power monitoring system has the advantages of being reliable, real-time, digitalized, intelligent, networked and automatic and achieving continuous monitoring, the condition of a power source of a monitored device is reflected in real time, and is displayed in a centralized mode, and therefore the emergent condition that when a fire disaster happens, due to the power failure, the fire fighting apparatus cannot normally work can be effectively avoided, and the reliability of a fire fighting linkage system is ensured to the greatest extent.
Owner:泉州天梭电气有限公司
Body building data monitoring system based on Internet of Things and cloud computing
InactiveCN108011954ASimple structureIntelligentMedical communicationPhysical therapies and activitiesStructure of Management InformationThe Internet
The invention provides a body building data monitoring system based on the Internet of Things and cloud computing. The system is composed of a body building data monitoring center and multiple body building monitors; the body building data monitoring center comprises a wireless gateway, a cloud server, a body building instructing and serving device and a body building database; and each body building monitor comprises a wireless communication module, a motion state monitor, an energy consumption monitor, a body building instructor, a card reader, a sports equipment controller and a microprocessor. The system has the advantages of being simple in structure, intelligent, digital, humanized, secure, reliable and the like and can learn the motion situation and the energy consumption conditionof a sporter in real time; and meanwhile the system can compute and process collected massive information through a cloud computing platform to propose a targeted, personal and scientific body building instruction for each body builder.
Owner:CHANGSHA RUIXIAO INTPROP SERVICES CO LTD
Ship intelligent navigation digital sand table system based on electronic chart
PendingCN111292419AAchieve sharingDigitalGeographical information databasesSpecial data processing applicationsDigital imagingMarine engineering
The invention belongs to the technical field of digital imaging, particularly relates to a ship intelligent navigation digital sand table system based on an electronic chart, and aims to solve the problem that a ship navigation environment of a specified sea area cannot be visually displayed in a three-dimensional space in the prior art. According to the invention, the digital sand table interaction interface and the three-dimensional digital sand table model are generated according to the electronic chart data and the target ship information data; instruction information sent by a user is received based on the digital sand table interaction interface, the digital sand table model is dynamically adjusted in real time according to the instruction information, and the three-dimensional digital sand table model is dynamically displayed through the virtual scene display unit. Visual cognition display is performed on the ship navigation environment of the designated sea area in the three-dimensional space so that the system has the characteristics of digitization and intellectualization; the digital sand table model is dynamically adjusted according to the instruction information data,the ship operation state is visually displayed from all directions, and interestingness and interactivity are improved.
Owner:智慧航海(青岛)科技有限公司
Building information model, method and device for construction project and settlement system
The invention discloses a building information model, method and device for a construction project and a settlement system. The building information model comprises a component metering module, a progress metering module, a project monitoring module, a project cost module and a settlement information module, and is used for acquiring the real object quantity, the demand quantity, the constructionprogress, the contract change information and the cost information of the components in the construction project so as to generate settlement information. The building information model is easy to track in the process of generating settlement information, intermediate data can be easily called out to be processed by a construction project delegating party, a supervisor and the like, and the effectof leaving marks step by step is achieved. Wherein the data processed by the building information model is BIM calculation amount, so that the problems of long calculation period, easiness in makingmistakes and easiness in causing inconsistency in multi-party verification in the prior art are avoided; and the building information model is easy to execute through a computer program, and has the effects of high automation degree and high efficiency. The building information model is widely applied to the technical field of constructional engineering informatization.
Owner:GUANGZHOU RAIL TRANSIT CONSTR SUPERVISION CO LTD
Electric ship power grid monitoring protection device and endurance monitoring method
ActiveCN104917297AImprove real-time performanceGuaranteed uptimeEmergency protective arrangements for limiting excess voltage/currentEmergency power supply arrangementsMultiway switchingCurrent limiting
The invention discloses an electric ship power grid monitoring protection device comprising multiple switching power supplies, a direct-current transmitter, a signal processing unit, a PPU device, a reinforced all-in-one machine, an alarm unit, and a control unit. The direct-current transmitter acquires the voltage and current of a direct-current power grid in real time. The signal processing unit transmits voltage signals, current signals and power parameters of the direct-current power grid to the reinforced all-in-one machine. The PPU device acquires the effective values of the three-phase voltage and current of an alternating-current power grid in real time, and transmits the data to the reinforced all-in-one machine. The reinforced all-in-one machine processes and displays the data, and sends an alarm signal to the alarm unit. The control unit controls the work of power supply uninterrupted conversion and current limiting protection devices so as to realize power off of branch circuits and current overload protection. The invention further provides a power grid endurance monitoring method. By adopting the device and the method, safe and stable operation of the whole ship power grid can be ensured.
Owner:CHINA SHIP DEV & DESIGN CENT
Energy-gaining device adapted to large-scale current changes
InactiveCN102075103ADigitalReduce the chance of accidentsAc-dc conversion without reversalAutomatic controlControl signal
The invention belongs to the field of power system detection, and particularly relates to an energy-gaining device adapted to large-scale current changes. The energy-gaining device comprises an instrument transformer sampling module, a relay, a signal shaping module and an embedded processing module, wherein the instrument transformer sampling module converts a heavy current signal in a high voltage line into a low current signal by utilizing an electromagnetic induction principle, and outputs the low current signal; the relay receives the low current signal and outputs the received low current signal; the signal shaping module precisely rectifies the received low current signal, and outputs the rectified low current signal; and the embedded processing module judges and analyses the received low current signal, generates a digital signal and transmits a control signal to the relay. Compared with a conventional energy-gaining transformer, the energy-gaining device adopting structures such as the relay, the embedded processing module and the like overcomes the inherent defect that an energy-gaining current output value changes along with the change of a load and the stability of output current cannot be controlled because the transformation ratio of a coil cannot be changed after the conventional transformer leaves a factory, realizes automatic online detection and automatically controls the stability of the output current of the instrument transformer in real time.
Owner:TIANJIN ZHILIAN HENGXIN ELECTRIC POWER EQUIP CO LTD
Small-caliber artillery dynamic tracking precision detection device
The invention discloses a small-caliber artillery dynamic tracking precision detection device and relates to the technical field of an artillery detection device. The detection device comprises a processor, a calibration instrument, a rifling high-precision camera, a fire control high-precision camera, a gun barrel inner bore self-centering device, a power supply module and a man-machine interaction module. The calibration instrument, the rifling high-precision camera and the fire control high-precision camera are connected with the signal input end of the processor; the rifling high-precision camera is arranged to an artillery barrel rifling place through the barrel inner bore self-centering device; the power supply module is connected with power supply input ends of modules needing power supply of the detection device; and the man-machine interaction module is in both-way data communication with the processor and is used for inputting data and displaying data. The detection device has the advantages of digitalization, full-automatic measurement, self calibration, high precision, and accurate space range measurement and the like.
Owner:石家庄军融科技有限公司
High-precision binocular vision measurement system and method for closure pipe
PendingCN110887443AImprove accessibilityDigitalUsing optical meansThree dimensional measurementEngineering
The invention discloses a high-precision binocular vision measurement system and method for a closure pipe. The system comprises a binocular high-precision three-dimensional measurement system, a coaxial device and a target, and is characterized in that the coaxial device is arranged in a flange hole of a flange, and the target is inserted into the coaxial device. The coaxial device comprises a mounting plate, a countersunk head screw and a cone frustum. The countersunk head screw and the cone frustum are mounted on the two sides of the mounting plate respectively; a coaxial cone hole is coaxially formed in the cone frustum; the cone frustum and the countersunk head screw are coaxially arranged; and an industrial strong magnet is mounted on the surface of one side of the countersunk head screw of the mounting plate. The target comprises a body. A measuring head is arranged at the end of the body; at least two target plates are arranged on the body; and three or four round holes are formed in each target plate. The system can measure the detailed spatial position of a to-be-measured flange, including the rotation angle and the deflection angle of the flange, can automatically read measurement data through software and carry out automatic calculation, realizes high-precision measurement of the closure pipe, and has the advantages of digitization, portability, high accessibility and the like.
Owner:JIANGSU YANGMING SHIP EQUIP MFG TECH
Glass intelligent distribution device
PendingCN107720272AImprove efficiencyLow running costCharge manipulationConveyor partsIntelligent transportContinuous production
The invention relates to a glass intelligent distribution device. The glass intelligent distribution device comprises raw piece production lines on an upper-side floor and deep processing production lines on a lower-layer floor. Glass piece discharging robots and glass frames are arranged on one side of each raw piece production line. A data tracking chip is mounted on each glass frame. Lifters are arranged between the upper-side floor and the lower-layer floor. An automatic navigation trolley is arranged between the lifters and each raw piece production line. A conveying rail and a distribution rail are arranged on one side of the deep processing production lines. The conveying rail corresponds to the lifters. A railed low-pressure guide trolley is arranged on the conveying rail. Glass temporary storage conveying devices and return conveying devices are arranged between the conveying rail and the distribution rail. The distribution rail is connected with a two-station rail trolley. The two-station rail trolley corresponds to a glass piece feeding robot on one side of each deep processing production line. The glass intelligent distribution device has the beneficial effects that anMES system is adopted in the device for control; high automation and intelligentization are achieved, and personnel participation is not needed in the whole conveying process; efficiency is high; theoperation cost is low; and it is guaranteed that production can be carried out continuously and orderly.
Owner:海控三鑫(蚌埠)新能源材料有限公司
Flexible exoskeleton integrated motor control driver and motor
PendingCN112701990ARealize power-on controlAchieve the purpose of operationAC motor controlSingle motor speed/torque controlControl signalElectric machine
The invention discloses a flexible exoskeleton integrated motor control driver and a motor. The motor control driver comprises a motor control circuit, a high-speed photoelectric coupler, a logic gate circuit, a motor drive circuit and a motor power amplification circuit which are connected in sequence; the motor control circuit is connected with a potentiometer used for collecting the rotation of the motor through an AD sampling circuit; the power supply end of the motor power amplification circuit is connected with the power supply through a filtering rectification circuit; and the signal end of the motor power amplification circuit is connected with a controlled motor. The potentiometer signal of rotation of the controlled motor is collected through the AD sampling circuit; the collected signal is filtered, amplified, sampled, maintained, quantized and coded through the motor control circuit, so that AD conversion can be completed, and a stable PWM pulse and a forward and reverse rotation signal F / R are output; after an output control signal passes through the high-speed photoelectric couple and the logic gate circuit; a corresponding field effect transistor is controlled to be conducted through the motor drive circuit and the motor power amplification circuit, so that the power-on control of the controlled motor is realized; and therefore, the purpose of driving the motor to operate is achieved.
Owner:贵州航天控制技术有限公司
Method and device for identification of working mode parameters based on self-iterative principal component extraction
ActiveCN107271127BEfficient detectionAvoid timeDesign optimisation/simulationVibration testingReal time analysisAlgorithm
Owner:HUAQIAO UNIVERSITY
Excess pressure controller capable of automatically stopping alarm function
InactiveCN112303780AGuaranteed working conditionWith automatic shutdown alarm functionMechanical apparatusSpace heating and ventilation safety systemsDifferential pressurePower switching
The invention discloses an excess pressure controller capable of automatically stopping the alarm function. The excess pressure controller capable of automatically stopping the alarm function comprises a staircase, vestibules, a signal data acquisition unit, a signal data analysis and processing control unit, a system management unit, a dual-power switch and electric switches, wherein the outer side of differential pressure measurement and control instruments are connected with a signal line, and the other end of the signal line is connected with an air valve control box. The air valve controlbox is connected with a bypass pressure release valve through a power line, a bypass pipe is fixedly installed on the outer side of the bypass pressure release valve, a pressurizing air supply channel is fixedly connected to the outer side of the bypass pressure release valve, a pressurizing air feeder is installed at the upper end of the pressurizing air supply channel, and a pressurizing air supply opening is formed in the outer side of the pressurizing air supply channel. According to the excess pressure controller capable of automatically stopping the alarm function, a SKYK excess pressure controller and an alarm device are monitored through a SKDY intelligent excess pressure monitoring host in the system management unit, the normal working state of the alarm device can be effectivelyguaranteed, and therefore automatic stopping of the alarm function can be normally completed.
Owner:镇江市欧菱电气自动化系统设备有限公司
Automatic control system of granulation production line
ActiveCN103048975BRealize automatic controlWith automationProgramme total factory controlControl signalNetwork communication
The invention discloses an automated control system of a granulation production line. The automated control system comprises a computer system, a PLC (Programmable Logic Controller) system, a sensor system and an execution electric appliance system, wherein the computer system is used for displaying a flow process in real time and setting process parameters, the PLC system is used for collecting a control signal, sending a control signal, and realizing program control, logic processing and a control algorithm, a master station and a slave station, of the PLC system, are connected through a PROFIBUS (Process Field Bus) network, the PLC system is connected with the computer system through an industrial Ethernet, the sensor system is used for detecting the process parameters and transmitting signals and is connected with the PLC system, and the execution electric appliance system is used for executing the control instruction and is connected with the PLC system. The automated control system disclosed by the invention has multiple functions such as measurement, control, alarm, safety interlock, network communication, and production data management.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
A Universal Small Spaceborne Digital Transponder Terminal Platform
ActiveCN107888278BHigh degree of generalizationSmall sizeRadio transmissionIntermediate frequencyEngineering
The invention discloses a generalized small space-borne digital transponder terminal platform, which belongs to the technical field of aerospace measurement and control. It includes a radio frequency front-end unit and an intermediate frequency and baseband signal processing unit. The radio frequency front-end unit includes a transceiver distribution network module, a receiving channel module, a transmitting channel module and a local oscillator frequency source module. The intermediate frequency and baseband signal processing unit includes a high-speed analog-to-digital conversion module, a low-speed Analog-to-digital conversion module, digital-to-analog conversion module, signal processing module, configuration and refresh module, clock generation module and communication interface module. The invention is a hardware platform for realizing the function of the measurement and control transponder, which supports multiple measurement and control systems, has the characteristics of generalization, miniaturization, and digitization, and is especially suitable for the requirements of factors such as research and development cycle, volume, power consumption, and cost. In the higher microsatellite system, it is an important improvement to the existing technology.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Car sound system with control system
InactiveCN106303797ADigitalVersatileFrequency/directions obtaining arrangementsControl systemDigitization
The invention provides a car sound system with a control system. The car sound system with the control system is characterized by comprising a car sound system and an emotion control system connected with the car sound system. The car sound system comprises a shell, a panel connected with the shell, a display screen and keys arranged on the panel, and a circuit board located in the shell. The car sound system with the control system is mounted and used in a car and has the advantages of digitization, various functions, good tone quality, low cost, energy source saving, convenient operation and long service life.
Owner:杨超坤
Method for three-dimensional visualization of comprehensive pipeline of metro
Owner:XIAN UNIV OF TECH
A Redundant Sequence Control System for Launch Vehicle
Owner:SHANGHAI AEROSPACE SYST ENG INST
Measuring device and measuring method for mechanical parameters
ActiveCN114383760AEasy to operateAccurate measurementUsing optical meansForce measurement by elastic gauge deformationOptical power meterSpectrograph
The invention provides a measuring device for mechanical parameters. The measuring device comprises a clamp, a coil, a magnet, a light source, an optical filter, a first polaroid, a second polaroid, a tripod, an optical power meter or a spectrograph, a probe of the optical power meter or the spectrograph, a direct-current power supply and a resistor. The clamp is used for fixing the two ends of a to-be-tested material, and the coil is suspended at the midpoint of the horizontally-placed to-be-tested material or suspended at the lower end of the vertically-placed to-be-tested material and is arranged at a uniform magnetic field between the two poles of the magnet; the light source, the optical filter, the first polaroid, the second polaroid and the optical power meter or the spectrograph probe are consistent in height, and light rays emitted by the light source vertically pass through the optical filter, the first polaroid, the second polaroid and the optical power meter or the spectrograph probe in sequence; the second polaroid is fixed on the three-legged support, one tip of the three-legged support is arranged on the clamp, the other two tips of the three-legged support are fixedly arranged on a horizontal plate, and the two ends of the coil wire are connected with the resistor and the direct-current power supply to form a closed loop. The device is simple to operate and accurate in result, and has the advantages of being controllable, easy to adjust, stable, continuous, high in anti-interference performance and the like.
Owner:XIAMEN UNIV
Electric ship power grid monitoring and protection device and battery life monitoring method
ActiveCN104917297BImprove real-time performanceGuaranteed uptimeEmergency protective arrangements for limiting excess voltage/currentEmergency power supply arrangementsDc currentSwitching power
The invention discloses a monitoring and protection device for an electric ship power grid, which includes a multi-channel switching power supply, a DC transmitter, a signal processing unit, a PPU device, a reinforcement integrated machine, an alarm unit, and a control unit; Voltage and current; the signal processing unit transmits the voltage signal, current signal, and power parameters of the DC grid to the all-in-one machine; the PPU device collects the effective values of the three-phase voltage and current of the AC grid in real time, and transmits the data to the all-in-one machine; The reinforced all-in-one machine processes and displays the above data, sends an alarm signal to the alarm unit, and the control unit controls the continuous power conversion of the power supply and the operation of the current limiting protection device to realize branch power loss and current overload protection. The invention also provides a method for monitoring battery life. The use of the device and method can ensure the safe and stable operation of the whole ship's power grid.
Owner:CHINA SHIP DEV & DESIGN CENT
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