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846 results about "Microcomputer system" patented technology
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A microcomputer is a complete computer on a small scale, designed for use by one person at a time. An antiquated term, a microcomputer is now primarily called a personal computer (PC), or a device based on a single-chip microprocessor. ... A microcontroller is an integrated circuit ( IC) designed to govern a specific operation in an embedded system. These single chips have onboard RAM, ROM and peripherals.
Intelligent advertising system having functions of audience characteristic perception and counting
InactiveCN102129644AWith characteristicsWith statistical functionImage analysisCharacter and pattern recognitionFace detectionVisual technology
The invention relates to an intelligent advertising system having functions of audience characteristic perception and counting and belongs to the technical field of computer vision. The system consists of a camera, computing equipment and an electronic advertisement screen provided with a memory, wherein the camera is responsible for acquiring an image and sending acquired image information to the computing equipment; and the computing equipment is a computer or an embedded microcomputer system which is responsible for performing processing and an operation on the image acquired from acquisition equipment and controlling the electronic advertisement screen according to an operation result so as to realize the memorizing, the displaying, the playing and the switching of an advertisement content. The system provided by the invention is simple in structure, low in cost and convenient in operation, so that the problem that the conventional billboard performs only one-way pushing without consideration of the information of current advertisement audiences is solved; the value of the billboard relative to other billboards can be obtained according to the function of counting, and extremely referable data is provided for an advertiser; and the speed and the correction rate of face detection and face tracking are improved by utilizing a background modelling technology.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Method for activating or deactivating data stored in a memory arrangement of a microcomputer system
InactiveUS6948071B2Reduce total usageAvoid utilizationVolume/mass flow measurementUnauthorized memory use protectionThird partyMicrocomputer system
A method is for activating or deactivating at least one part of data stored in a memory arrangement of a microcomputer system, in particular one part of a program stored there. In the event of a manipulation of data stored in the memory arrangement by unauthorized third parties, a method having the following method steps may prevent utilization of the manipulated data reliably and effectively:a microcomputer-individual identifier is stored in a signed or encoded fashion a specifiable memory area of the memory arrangement;when the microcomputer system is started up, the signature of the identifier is checked or the identifier is decoded; andas a function of the result of the identifier, one part of the data is activated or deactivated.
Owner:ROBERT BOSCH GMBH
Detection circuit for auto detecting avalanche magnitude of voltage of avalanche photodiode and method
InactiveCN101387658AEasy to operateReduce the difficulty of operationCurrent/voltage measurementIndividual semiconductor device testingMicrocontrollerHuman–machine interface
The invention discloses a test circuit for automatically testing the avalanche voltage of avalanche photodiodes and a method. The test circuit comprises a boost power chip with a current detector and a boost controller for providing bias voltage and current for an avalanche photodiode; a microcontroller with three internal analogue converters for adjusting and sampling the bias voltage and current; four resistance capacitance networks for connecting the internal circuits between the microcontroller and the boost power chip. The three analogue converters of the microcontroller are respectively connected with the feedback input of the boost controller, the bias voltage input of the current detector and the monitor output of the current detector via three resistance capacitance networks. The invention is based on automatic control theory, can automatically adjust safe bias voltage, can judge the avalanche breakdown region by comparing the sampled current value and a preset respected value, and can display the result on a man-machine interface of a microcomputer system, having wide dynamic range, accurate and adjustable output, fast and accurate measurement.
Owner:SUPERXON (CHENGDU) TECH LTD
Intelligent cerebrospinal fluid drainage control and recognition warning system
PendingCN107497004AImprove securityEarly bindingMedical devicesIntravenous devicesPattern recognitionMicrocomputer system
An intelligent cerebrospinal fluid drainage control and recognition warning system mainly comprises a microcomputer system (1), a flow control device (2), an infrared drop number sensor (3), a color recognition sensor (4), a pressure sensor (5), a communication module (6), a human-computer interaction interface (7) and a radio frequency recognition device (13). The intelligent cerebrospinal fluid drainage control and recognition warning system can independently set the discharge speed, the drainage amount per unit time, the drainage time interval and the drainage pressure of cerebrospinal fluid according to individual differences of patients or clinical needs so as to achieve fixed-speed discharge, quantitative discharge, timed discharge and personalized-pressure discharge of the cerebrospinal fluid; meanwhile, in the drainage process, the color recognition sensor (4) can make timely prewarning when the cerebrospinal fluid has a hemoglobin reaction.
Owner:XIAN WINZISS MEDICAL GRP CO LTD
Motor vehicle fuel tank system capable of providing measurement data of road grade and fuel volume
InactiveCN1763484AKnow altitudeGuaranteed feasibilityMachines/enginesLevel indicatorsMicrocomputer systemLevel sensor
The invention provides an automotive fuel tank system of road grade measuring data and fuel bulk measuring data, which is characterized by the following: detecting the oil tank position corresponding to the fuel oil level due to more than two oil level sensors (three oil level sensors on common); providing the inclined condition data of fuel oil tank and fuel oil quantity data to the microcomputer system under the different heights of oil level senor condition; indicating the road inclination through the microcomputer system (strictly speaking, indicating the fuel oil inclination) to display the fuel oil quantity; measuring the oil consumption per one hundred kilometer through mating utility with the electronic odometer.
Owner:胡嘉刚 +1
Guided wave radar level meter echo signal processing system and method based on first-order derivative
ActiveCN103542911AProof of validityEasy to operateMachines/enginesLevel indicatorsMoving averageMicrocontroller
The invention relates to a guided wave radar level meter echo signal processing system based on first-order derivative. The system comprises a single-chip microcomputer for controlling transmitting and receiving of pulse signals, a pulse transmitting circuit, a guided wave rod, an echo signal receiving circuit and a equivalent time sampling circuit. A signal conditioning circuit, a single-chip microcomputer system for processing echo signals, a liquid crystal display and software are further provided. The echo signals processed by the equivalent time sampling circuit are sent back to the signal conditioning circuit, subjected to voltage dividing, biasing and impedance conversion and sent to the single-chip microcomputer system to be sampled. Echo signal processing includes that the echo signals are subjected to 9-point moving average filtering preprocessing, filtered signals are subjected to first-order derivative calculation to detect echo, material level echo is judged through multi-parameter organic combination, a material level location point and a reference starting point are determined to calculate time difference, then the time difference is substituted into a function relational expression of the material level determined by calibration and the time difference to calculate the material level.
Owner:HEFEI UNIV OF TECH
Multipoint loading fatigue tester controlled by microcomputer
InactiveCN101750248AIncrease stiffnessImprove carrying capacityMaterial strength using tensile/compressive forcesStructural/machines measurementMicrocomputer systemConcrete beams
The invention discloses a multipoint loading fatigue tester controlled by a microcomputer, which relates to a material tester and mainly solves the problems of fatigue tests of samples with large volume and high precision requirement in the construction of highways and railway bridges. The tester comprises a host machine, a loading mechanism, a measuring system, a hydraulic system and a control system, wherein the host machine comprises a stand and an attachment on the stand; a moving cross beam is arranged at the upper part of the bearing stand; a bearing cross beam is arranged at the lower part of the bearing stand; the bearing stand is provided with a cushion block; a sample is arranged on the cushion block; a servo loading oil cylinder used as the loading mechanism is arranged between the moving cross beam and the sample; the measuring system is provided with a sensor and a display; the hydraulic system is provided with a hydraulic oil cylinder, an electrohydraulic servo valve, a pipeline and the like; and the control system mainly comprises a microcomputer system. Various test work can be finished by combining the systems and the main machine. The invention can realize a multipoint synchronous pressure-resistant fatigue test and is used for fatigue tests of full-size steel beams, combined beams and concrete beams and pressure-resistant fatigue tests of welding joints, reinforcing steel bars, guy cables and hanger rods.
Owner:TIANSHUI HONGSHAN TESTING MACHINE
High-speed internal clock synchronizing method and circuit
InactiveUS6021504ASimple circuit configurationQuick implementationSynchronisation information channelsPulse automatic controlMicrocomputer systemComputer science
An internal clock synchronizing circuit capable of solving a problem involved in a conventional high speed microcomputer system in that it takes a long time to establish clock synchronization between system component circuits of the microcomputer system. The internal clock synchronizing circuit includes a clock generator for generating an internal clock signal by dividing an original clock signal; a clock comparator for comparing the internal clock signal with a reference clock signal; a compared result holding circuit for holding, in synchronism with the original clock signal, a compared result signal output from the clock comparator; and a clock switching circuit for switching supply of the original clock signal to the clock generator in response to the compared result signal held in the compared result holding circuit.
Owner:MITSUBISHI ELECTRIC CORP
Keyboard character defect online detection system based on computer vision and keyboard character defect online detection method thereof
ActiveCN106570511AEasy to handleEasy to compareCharacter and pattern recognitionPositive sampleMicrocomputer system
The invention relates to a keyboard character online detection system based on computer vision and a keyboard character online detection method thereof. The system comprises an industrial camera, a computer, a single-chip microcomputer system, a frequency converter, a motor and a conveying belt. The method comprises the operation steps that (1) the image quality is enhanced by using an image gray processing and median filtering method; (2) image matching is performed by using surf feature points; (3) the character positions are determined; (4) sequence numbering is performed on the characters; and (5) defect character separation is performed. An SVM classification method is used by the detection algorithm, the normal characters are marked as positive samples, the wrong characters are marked as negative samples, and the size, the center and the moment features of the samples are extracted to be trained. The system is easy to install and high in detection efficiency and plays an important role in the keyboard production process.
Owner:SHANGHAI UNIV
[dynamic mask module]
InactiveUS20050083498A1Reducing fabrication costReduce processing timeSemiconductor/solid-state device manufacturingPhotomechanical exposure apparatusManufacturing cost reductionResist
A dynamic mask module is disclosed, which comprises a micro-computer system, a mask pattern generator and a light source. The mask pattern generator is disposed over a substrate and electrically connected to the microcomputer system. The microcomputer system transmits an image signal to the mask pattern generator. The light source is disposed over the mask pattern generator to a photo-resist layer on the substrate. The mask pattern generated by the dynamic mask module is a dynamic image and the mask pattern can be changed on anytime. In addition, the manufacturing cost can be and the manufacturing time can be reduced.
![[dynamic mask module]](https://images-eureka.patsnap.com/patent_img/297b1393-3f42-4bc9-9df2-c527dbf2b82a/US20050083498A1-20050421-D00000.png "[dynamic mask module]")
![[dynamic mask module]](https://images-eureka.patsnap.com/patent_img/297b1393-3f42-4bc9-9df2-c527dbf2b82a/US20050083498A1-20050421-D00001.png "[dynamic mask module]")
![[dynamic mask module]](https://images-eureka.patsnap.com/patent_img/297b1393-3f42-4bc9-9df2-c527dbf2b82a/US20050083498A1-20050421-D00002.png "[dynamic mask module]")
Owner:NAT TAIWAN UNIV OF SCI & TECH
System and method for controlling fixed-height flight of fixed-wing unmanned aerial vehicle
InactiveCN102442424ASatisfied with low-altitude and fixed-altitude flightEasy to operateActuated automaticallyMicrocomputer systemEngineering
The invention discloses a system and a method for controlling fixed-height flight of a fixed-wing unmanned aerial vehicle, relating to the field of unmanned aerial vehicle control. By using the system and the method, a barometric height sensor is used as a height measuring element, an external lithium battery is used for supplying power to the whole system, and the sensor is protected by using a wind filtering device to reduce the influence, caused by wind pressure at a high altitude, on the sensor so that errors are reduced. After related information is measured by the barometric height sensor, an I2C bus (internal integrated circuit bus) transmits data to a single-chip microcomputer system, a series of data calculations are performed in a single-chip microcomputer to obtain corresponding height information; and finally, an elevating rudder and a gasoline throttle on the plane are linked together for PD (proportional plus derivative) control so as to control angle changes of a steering engine and the size of the gasoline throttle, and a height over-ascending and over-descending protection program is added in the programs to further improve the safety and realize autonomous height fixing of the unmanned aerial vehicle. The system has the advantages of low cost, small error, stable structure, small interference from external environment, easy implementation and the like.
Owner:BEIJING UNIV OF TECH
Automatic goods fetching system for terminal express delivery and implementation method thereof
InactiveCN102750779AReduce workloadReduce in quantityCoin-freed apparatus detailsApparatus for dispensing discrete articlesMicrocomputer systemPassword
The invention discloses an automatic goods fetching system for terminal express delivery and an implementation method thereof. The automatic goods fetching system for terminal express delivery comprises a box body, the box body is divided into three storage boxes at least, a microcomputer system is arranged in the box body, the box body is provided with a USB (universal serial bus) interface or a wireless communication network, a keyboard, a red prompting light, a green prompting light, a display screen, a power source, a voice prompting device and the like, one side of the bottom of the box body is provided with a weighing device, and the top of the box body is provided with a camera; the structure of the automatic goods fetching device for express is in a no-interlayer design; and the implementation method based on the device is introduced in detail. The automatic goods fetching device for express is combined with technologies of bar codes, short message feedback, password memory and identification and the like, entire intact operation of an express enterprise is realized, and the problems that time conflict exists between a courier and a customer and goods safety in terminal express delivery can not be guaranteed can be effectively solved, so that the service quality and the entire benefit of the enterprise are improved.
Owner:SHANDONG JIAOTONG UNIV +4
Sleep therapy apparatus based on electroencephalogram biofeedback and control method thereof
InactiveCN102179001AAchieve improvementRealize acquisitionArtificial respirationElectroencephalogram electrodeMicrocomputer system
The invention relates to a sleep therapy apparatus based on electroencephalogram biofeedback, also called as a good sleep generator. The apparatus comprises an electroencephalogram electrode, an electroencephalogram signal amplifying and filtering circuit, an A / D (analog / digital) sampler, a measuring and controlling system based on a single chip microcomputer, a D / A (digital / analog) output circuit, a stimulating signal drive circuit, a system power supply and the like, wherein an electroencephalogram signal, the electroencephalogram electrode, the amplifying and filtering circuit, the A / D sampler, the measuring and controlling system, the D / A output circuit, the drive circuit and a stimulating electrode are orderly connected, and an analytical algorithm module and a database are connected with the measuring and controlling system. According to invention, the single chip microcomputer system is used as a measuring and controlling platform, and collection, amplification and analysis processing of the electroencephalogram signal are realized in combination with the electroencephalogram signal amplifying and filtering circuit and a stimulating wave signal database which are arranged at the front end and a stimulating signal generating and drive circuit arranged at the rear end; corresponding therapy mode, stimulating wave group and stimulating intensity are selected according to the characteristics of the brain waves; and at last a therapy scheme is input by a post-stage stimulating circuit so as to realize biofeedback type sleep therapy.
Owner:JINAN UNIVERSITY
Microcomputer system with reduced power consumption
InactiveUS8046615B2Reduce power consumptionEnergy efficient ICTVolume/mass flow measurementMicrocomputer systemEngineering
Owner:DENSO CORP
Automatic ABSECU detection device
InactiveCN102495624AQuick checkComprehensive detectionElectric testing/monitoringMicrocontrollerMicrocomputer system
The invention relates to an automatic ABSECU detection device of an automobile, which comprises a valve abnormal simulation module, a valve driving abnormal simulation module, a sensor abnormal simulation module, a wheel speed simulation module, a power supply abnormal simulation module, a diagnosis module, a power supply module, a single chip microcomputer system and a personal computer (PC). Detection control program is conducted on the PC, indications are transmitted to the single chip microcomputer system through a serial port to control the abnormal simulation modules to work and simulate various working conditions of an ABSECU, the single chip microcomputer system collects voltage states at a valve output port and a warning lamp output port of the ABSECU and transmits the states to the PC, and the PC directly conducts information reading and control on the ABSECU through the diagnosis module and judges whether the ABSECU passes the detection or not according to the port voltage states and the diagnosis communication response to achieve full-aspect detection of the quality of the ABSECU. The automatic ABSECU detection device of the automobile can quickly and comprehensively conduct delivery quality detection on the ABSECU.
Owner:HUNAN UNIV
Method and device for precisely measuring temperatures of platinum resistors
InactiveCN104236742AReduce mistakesReduce self-heating effectThermometers using electric/magnetic elementsUsing electrical meansMicrocomputer systemLow-pass filter
The invention discloses a method and a device for precisely measuring temperatures of platinum resistors. The scheme for measuring the temperatures of the micro-current-drive four-wired Pt100 platinum resistors includes that the device for precisely measuring the temperatures of the platinum resistors comprises a constant-current source drive circuit, a four-wired platinum resistor interface circuit, an instrument amplifier circuit, an anti-aliasing filter circuit, a sampling hold circuit, an A / D (analog / digital) sampling circuit and a single chip microcomputer system. A constant-current source comprises two low-noise and low-offset bipolar operational amplifiers OP07CD with high open-loop gain; the four-wired platinum resistor interface circuit is divided into a constant-current source power lead and a voltage drive lead; the instrument amplifier circuit comprises a double-stage differential amplifier circuit; the anti-aliasing filter circuit is an RC low-pass filter circuit; an A / D converter is a 24-bit high-resolution A / D converter CS5550. The method and the device have the advantage that the measurement precision is high, calibrated temperature measurement errors are smaller than + / -0.03 DEG C, and requirements of industrial production procedures on high temperature measurement precision can be met.
Owner:JIANGNAN UNIV
Wireless communications terminal, communications protocol switching method, communications protocol switching program, and integrated circuit of wireless communications terminal
InactiveUS20060234778A1Avoid radio interferencePower managementAssess restrictionMicrocomputer systemControl communications
The present invention provides a wireless communications terminal capable of preventing radio interferences from being caused by other wireless communications concurrent with a contactless communications. A wireless communications terminal (101) receives, in a contactless communications, a command from a reader / writer (105) via a second wireless communications section (209), and analyzes the received command. The wireless communications terminal (101) controls a wireless communications control section (210) to deactivate or temporarily deactivate the function of a first wireless communications section (208) depending on the analysis of the command. After the function of the first wireless communications section (208) is deactivated or temporarily deactivated, the wireless communications terminal (101) accesses a memory area of an IC card microcomputer system (300) as specified by the command to perform a contactless communications.
Owner:INTERTRUST TECH CORP
Portable fruit picking device
The invention discloses a portable fruit picking device. The upper end of a stand rod is provided with an upper pulley, the lower end of the stand rod is provided with a lower pulley, a rope is wound on the upper pulley and the lower pulley, the two sides of the stand rod are provided with a left guide rail and a right guide rail respectively, the inside of the left guide rail and the inside of the right guide rail are respectively provided with a sliding block, each sliding block is provided with four idler wheels, the idler wheels of the sliding blocks allow the sliding blocks to freely slide in the left guide rail and the right guide rail respectively, the upper end of each sliding block is provided with a pull rod, each pull rod is provided with a through hole, the sliding blocks in the guide rails on the two sides are respectively fixedly provided with a fixing ring, the lower sides of the two fixing rings are respectively provided with a bag, the portion, on the upper pulley, of the rope is tied to the inside of the through hole in the left sliding block, the portion, on the lower pulley, of the rope is tied to the inside of the through hole in the right sliding block, the upper end of the stand rod is provided with a fixed knife and a movable knife, the fixed knife is arranged over the center line of the left guide rail and the center line of the right guide rail, the movable knife can rotate by 90 degrees under drive of a steering engine, and the steering engine is controlled to rotate through a single chip microcomputer system. The portable fruit picking device can be suitable for being used for picking of various kinds of fruits, the fruits cannot be damaged, production efficiency can be improved, labor is saved and cost is reduced.
Owner:BEIJING FORESTRY UNIVERSITY
Infrared array number-of-personnel sensor-based counting method and apparatus
ActiveCN106600777ASolve the low detection accuracyReduce power consumptionCharacter and pattern recognitionIndividual entry/exit registersComputer hardwareHuman body
An infrared array number-of-personnel sensor-based counting method and apparatus comprises the following steps: processing an output signal of an infrared array sensor arranged above a door, identifying the contour of human bodies, and tracking the movement direction of the contour; and judging personnel goes in or out according to the movement track of the contour to realize counting of personnel access to the door. A counting apparatus comprises a single-chip microcomputer system, and the infrared array sensor, a PIR sensor and a power supply circuit which are connected with the single-chip microcomputer system, and the single-chip microcomputer system acquires the infrared image of a detection area through the infrared array sensor, and detects whether personnel passes by the door or not through the PIR sensor. The counting method and the counting apparatus solve the problem of low detection precision of infrared emission and reception sensors in the process of multiple persons passing through the door, has the advantages of multi-target tracking, high identification precision and low power dissipation, is difficult to damage due to high installing position, has substantial advantages, and adapts to application promotion.
Owner:JINAN SINE LEAD ELECTRONICS TECH
Lane changing assistance early warning system and control method thereof
ActiveCN105291978AAchieving rear collision avoidanceHigh energySignalling/lighting devicesMicrocontrollerMicrocomputer system
The invention discloses a lane changing assistance early warning system. A right rear radar sensor and a left rear radar sensor used for detecting the two sides of the rear area are arranged on the two sides of a vehicle respectively, the right rear radar sensor and the left rear radar sensor output detection signals to a main control unit through a CAN bus, and the main control unit outputs a warning signal to a warning control unit. The early warning system is realized based on a lane changing assistance control unit of a single-chip microcomputer system and the DSP-based millimeter-wave radar sensors installed on the two sides of the rear area of the vehicle, and communication between the lane changing assistance control unit and the millimeter-wave radar sensors is achieved through the CAN bus; furthermore, the early warning system can be expanded by adding algorithms and radar modules, the expandability of the system is improved, and then an active safe system capable of achieving rear collision prevention, door opening warning and front collision prevention is obtained.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
Three-Level SVPWM method with neutral-point balancing and common-mode voltage suppression capabilities
ActiveCN107196536AImprove real-time performanceReduced stabilityAC motor controlEfficient power electronics conversionHardware structureThree level
The invention discloses a three-Level SVPWM method with neutral-point balancing and common-mode voltage suppression capabilities. The problem of unbalanced neutral point potential occurs when a three-phase T-type three-level inverter applied to a permanent magnet synchronous motor vector transformation control system adopts a single power supply scheme, which usually leads to performance reduction of the inverter. The three-Level SVPWM method aims to maintain neutral point balance of the three-level inverter under more complex working conditions without changing hardware structure and increasing size and cost of the inverter significantly through improving the traditional SVPWM method; the three-Level SVPWM method further improves the common-mode voltage suppression capability, reduces impact to motor insulation, prolongs the service life of the motor, reduces maintenance cost, and improves the operation stability of the motor control system; and the improved SVPWM method is suitable for digitization, and the calculation workload during the neutral point balance regulation process is small, thereby facilitating real-time control of a microcomputer system.
Owner:ZHEJIANG UNIV
Method and system for automatically adjusting white balance of gray scale of liquid crystal display dark field
InactiveCN101923837ASmall white balance errorImprove the display effectColor signal processing circuitsStatic indicating devicesLiquid-crystal displayMicrocomputer system
The invention relates a method and a system for automatically adjusting white balance of gray scale of a liquid crystal display dark field. The method comprises the following steps that: a gray scale signal generator provides black and white window video signals, in which gray scale levels are changed according to a time sequence, for a liquid crystal display; a gray scale color analyzer detects brightness and colorimetric values of alternating gray scales of the liquid crystal display and transmits the measuring result to a microcomputer system; the microcomputer system runs automatic adjusting software of the white balance of the gray scale of the dark field, and the software processes data, analyzes the color changing conditions of different gray scales of the dark field, optimizes white balance adjusting data values of the liquid crystal display according to standard dark field color coordinates to make error of each gray scale relative to standard white field color coordinate minimum and transmits the optimized white balance adjusting data values red, green and blue CUTOFF to the liquid crystal display; and the liquid crystal display changes the color of the dark field in real time according to the received white balance adjusting data values. Through the method and the system, an absolute error value of the color of each gray scale of the dark field relative to the standard color is minimum and the color cast problem of the dark field is improved.
Owner:浙江贝力生科技有限公司 +1
Control system integrated with precaution function for locomotive microcomputer control system and control method and control method
InactiveCN102745206AReal-time recording of vigilant alarm eventsLow costLocomotivesControl systemMicrocomputer system
The invention discloses a control system integrated with a precaution function for a locomotive microcomputer control system and a control method. Various switching quantity and analog quantity information of a whole locomotive can be integrated by a locomotive microcomputer; the precaution function is integrated to the inner part of a microcomputer system to facilitate the locomotive microcomputer in judging various movements of a driver according to the actual conditions, responding relative responds of the driver, prompting and warning the driver, and recording a precaution alarming event in real time; the locomotive microcomputer can automatically judge the movement direction of the locomotive according to two groups of independent pulse arrays with a phase difference of 90 degrees, which are output according to a speed sensor, so as to carry out reverse current protection on the locomotive; and after the locomotive microcomputer is integrated with the precaution function, a precaution device does not need to be additionally arranged, so that the hardware cost is saved, the extra wiring procedure and mounting space are reduced, and the difficulty of overhauling and maintaining the system is reduced.
Owner:CRRC ZIYANG CO LTD
Full-automatic steel tapping method and system of converter
InactiveCN110616288AReduce incidenceLess investmentSteel manufacturing process aspectsManufacturing convertersMeasurement deviceMicrocomputer system
The invention discloses a full-automatic steel tapping method of a converter. The method comprises the steps of (1) obtaining the weight G1 of smelting molten steel in the converter through calculation; (2) based on the weight G1 of the smelting molten steel in the converter, setting the initial angle theta 0 when steel tapping of the converter begins; (3) after steel tapping begins, adjusting theinclination angle theta of the converter according to the steel tapping time, and meanwhile, controlling the walking displacement xt of a steel ladle trolley, so that the steel ladle trolley is located at a steel tapping steel flow impact point all the time; (4) when a steel tapping end condition is detected, stopping steel tapping and lifting up the converter. The invention further discloses a full-automatic steel tapping system of the converter. The system comprises the converter, the steel ladle trolley, a second-level microcomputer system storing steel grade smelting information, a converter inclination angle measurement device for measuring the inclination angle of the converter, a converter tilting driving device connected with the converter, a steel ladle trolley position detectiondevice for detecting the position of the steel ladle trolley in the walking direction, a steel ladle trolley walking driving device connected with the steel ladle trolley, a slag discharging device and a control system.
Owner:BAOSHAN IRON & STEEL CO LTD
Method and apparatus for detecting gas concentration with infrared absorption characteristics
ActiveUS7351954B2Overcome disadvantagesReduce errorsMaterial analysis by optical meansCalibration apparatusMicrocontrollerMicrocomputer system
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Intelligent cost control electric energy meter and clock calibration method
ActiveCN102435975ALow costThe clock runs accurately and reliablyElectrical measurementsMicrocontrollerMicrocomputer system
The invention provides an intelligent cost control electric energy meter and a clock calibration method. The intelligent cost control electric energy meter is characterized in that the intelligent cost control electric energy meter takes a single-chip microcomputer system integrating a hardware clock as a basis; the single-chip microcomputer system integrating the hardware clock comprises a single-chip microcomputer integrating the hardware clock, a crystal oscillator and a temperature compensation circuit; and the crystal oscillator is connected with the single-chip microcomputer integrating the hardware clock, and the temperature compensation circuit is connected with the single-chip microcomputer integrating the hardware clock. The clock calibration method comprises the steps of calculating a temperature-frequency error curve equation of the intelligent cost control electric energy meter according to a plurality of groups of measured temperature and frequency error corresponding values, and using the single-chip microcomputer of the intelligent cost control electric energy meter to perform clock frequency regulation according to frequency error. The intelligent cost control electric energy meter provided by the invention takes the single-chip microcomputer system integrating the hardware clock as the basis, the external crystal oscillator is taken as reference frequency of the internal hardware clock, different temperature points are compensated according to the temperature and frequency properties of the crystal oscillator, and the internal hardware clock single-chip microcomputer adopting software compensation can not only meet the requirements on precision in a full-temperature range and realize high reliability, but also reduce the cost.
Owner:CHINA ELECTRIC POWER RES INST +1
Microcomputer system
InactiveUS20090106572A1Reduce power consumptionEnergy efficient ICTVolume/mass flow measurementMicrocomputer systemElectric power
A sub-microcomputer having a sub-CPU and a power supply control section that controls the power supply to a main microcomputer is disposed in addition to the main microcomputer having a main CPU. A sub-clock section that supplies a sub-clock signal having a lower frequency to the sub-microcomputer can change over between a continuous mode and an intermittent mode. When the main CPU gives an operation stop notification to the sub-CPU, the sub-CPU recognizes the notification, stops the power supply to the main microcomputer, and sets the sub-clock section to the intermittent mode. The sub-CPU determines that the operation state condition is satisfied in the period of the intermittent mode, the sub-CPU changes over the sub-clock section to the continuous mode to restart the power supply to the main microcomputer.
Owner:DENSO CORP
Multifunctional scraper stirring ball mill
InactiveCN1473659AExpand the scope of research and developmentThe experimental data is accurateGrain treatmentsMicrocomputer systemShielding gas
The ball mill consists of main unit and peripheral equipment, the main unit consists of frame, elevating table, motor, transmission part, main shaft and ball milling pot, and the peripheral equipmentincludes cooling system, vacuum system, gas supply system, material feeding system, measuring and controlling system and remote controlled microcomputer system. The ball mill has integrated laminated dynamic and static combined sealing, simultaneous vacuum pumping and filling with protective gas of the ball milling pot and the transmission part, no leakage of the material during alloying and no harmful gas invasion. It has end scraper to eliminate powder adhered to the wall of the ball milling pot and spherical transition ends to eliminate powder deposition in the bottom and to raise the ball milling effect. The present invention is suitable for processing nano material.
Owner:XI AN JIAOTONG UNIV
Emulation test method of aerospace optical remote sensing machine focusing control circuit
InactiveCN101140468ATroubleshooting Simulation Detection IssuesAvoid unintuitiveElectric testing/monitoringMicrocomputer systemControl signal
The present invention relates to a simulating detecting technology for focusing control circuit of remote sensors, in particular to a simulating detecting method for focusing control circuit of space optical remote sensor, which connects a closed loop system for focusing control simulating test with a tested focusing control circuit to detect impulse quantity, breadth, frequency and phase position signal of the focusing control circuit. Wherein, the closed loop system is composed of a voltage regulating circuit 3, an analog-to-digital converting circuit 5, a microcomputer system 6 and a serial communication circuit 7. The detecting procedures include: Regulating voltage of the control signal of the focusing control circuit, collecting and preprocessing signals of the focusing control circuit and detecting impulse quantity, breadth, frequency and phase position signal of the focusing control circuit, and displaying detected error information on screen of the microcomputer. The present invention can realize simulating test for focusing control circuit of space optical remote sensor on ground to meet demands for multifunction, long-time and quick detection.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Test device and test method for observing hole machining outlet
ActiveCN105092590ASolve the lack of spaceRadiation pyrometryMeasurement/indication equipmentsTime conditionMicrocomputer system
The invention discloses a test device for observing a hole machining outlet, belongs to the technical field of hole machining, and relates to a test device and a test method for observing hole machining outlet, and the device and the method are especially suitable for studying a machining process of carbon fiber reinforced composite holes. The device comprises a microcomputer system, a horizontal drilling test table, a high-speed microexamination device, an on-line outlet temperature measuring device and a dust removal device. The method comprises the following steps: firstly adjusting a drill clamped on the front end of an angle head to a to-be-machined position, determining the expected center of a drilling hole outlet according to the intersection point of the axis of the drill and a to-be-machined test piece outlet side, and marking, and adjusting a high-speed camera and a thermal infrared imager to determine a view field, and focusing correctly. According to the device and the method, the crosswise drilling machining is realized by the angle head, the outlet temperature can be measured in an on-line manner, a hole outlet cutting process can be observed in a stable, clear and multi-angle manner, and real-time conditions of cut shapes and temperature values of materials in a cutting area in the cutting process can be obtained.
Owner:DALIAN UNIV OF TECH
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