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137results about How to "Easy parameter adjustment" patented technology

Method and apparatus for extended adjustment based on relative positioning of multiple objects contemporaneously in a sensing region

A touch sensor device and method is provided that facilitates improved device usability. Specifically, the device and method provide improved user interface functionality by facilitating extended parameter adjustment using proximity sensor devices. The device includes a processing system and a sensor adapted to detect objects in a sensing region. The device is adapted to provide user interface functionality by determining a measurement descriptive of a location of a first object relative to a location of a second object, and applying a first rate for adjusting a visual parameter such that the visual parameter adjusts even if the first object is stationary relative to the second object, where the first rate is based on the measurement. By so providing a first rate for adjusting a parameter, the device facilitates extended user input.
Owner:WACOM CO LTD

Computer System, Program, and Method for Assigning Computational Resource to be Used in Simulation

The cost necessary for introducing and maintaining a development environment that includes multiple simulators is suppressed, and a sharing of designing information is promoted, to make parameter adjustment of simulators easy. Provided is a service that unifies development environment on a computer provided with: a working computer system that can guarantee that there is no leaking of designing files; a user behavior monitoring system that collects utilization history of simulators or software, for each of the users, and selects development process of each of the users from the collected information; and a dynamic computational-resource distribution system that can conduct an automatic optimization of a complex simulation configuration, from information collected by the aforementioned user behavior monitoring system.
Owner:HITACHI LTD

Copper part surface defect visual inspection system and inspection method based on semi-supervised learning model

The invention discloses a copper part surface defect visual inspection system and a copper part surface defect visual inspection method based on a semi-supervised learning model, belonging to the technical field of copper part surface defect visual inspection. According to the invention, aiming at common copper part surface defects, a conveyer belt and a guide rail are used for moving a copper part to four corresponding inspection stations, an image acquisition system is adopted to shoot pictures so as to sequentially inspect whether the upper and lower surfaces as well as two sides surfaces of the copper part have defects and classify the copper part according to the judgment result, and the system is also equipped with a camera so as to remotely monitor the running condition of the visual inspection system in real time. Operations of parameter adjustment after configuration of the system, data storage and statistics, real-time remote system monitoring and maintenance are carried out in the cloud terminal. The system and the method can realize automatic and continuous inspection on the surface defects of the copper parts, can be used for replacing manual visual inspection methods, and can improve inspection efficiency and accuracy.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Thyristor rectifier bridge parallel operation full digital current homogenizing control device

The invention discloses a thyristor rectifier bridge parallel operation full digital current homogenizing control device, which comprises a regulator, a rectifier cabinet controller, thyristor rectifier bridges and a detection component. The regulator is a master controller; the rectifier cabinet controller is a slave controller; a terminal signal processing module regulates terminal voltage and current signals of a generator, so that the terminal voltage and current signals are suitable to be output to an analog-to-digital conversion module of a regulator controller; and a synchronization signal processing module regulates the anode voltage of the rectifier cabinet thyristor rectifier bridges, so the anode voltage is suitable to be output to a pulse formation module of the regulator controller to serve as a synchronization signal of the anode voltage of the thyristor rectifier bridges. Due to the adoption of digital closed loop control, full digital intelligent current homogenization for a plurality of parallel operation thyristor rectifier bridges under full-motion environment is realized by real-time sampling and control.
Owner:DONGFANG ELECTRIC MACHINERY +1

Full-light-path light intensity stable-controlling system of SERF atomic self-spinning top

ActiveCN107643615ASuppresses fluctuations in light intensityHigh precisionStatic indicating devicesSagnac effect gyrometersBeam splitterPrism
The invention discloses a full-light-path light intensity stable-controlling system of an SERF atomic self-spinning top. A liquid crystal phase delayer is utilized to inhibit pumping laser of the SERFatomic self-spinning top and detect the light intensity variation of the laser, and thus the stability of output signals of the SERF atomic self-spinning top is improved. According to the method, a photoelectric detector is firstly utilized to detect laser split by a beam splitter prism from a main pumping laser and detection laser path, detection signals are fed back to a digital controller through an analog-digital converter (ADC), the digital controller produces a PID control law based on a PID algorithm, the phase delay amount of the liquid crystal phase delayer is controlled through a digital-analog converter (DAC), control of laser intensity transmittance is achieved, and thus stable control of the intensity of pumping laser and detection laser is achieved. The beam splitter prism is arranged behind a photoelastic modulation module in a detection light path, thus the detection laser intensity variation before the laser enters an alkali metal air chamber is inhibited, stable control of full-light-path light intensity of the SERF atomic self-spinning top is achieved, the meanwhile miniaturization of the SERF atomic self-spinning top is facilitated.
Owner:BEIHANG UNIV

Pumping system

ActiveUS20070098575A1Reduce weightImproving pump movement performanceFlexible member pumpsFluid removalBasementReduction drive
A pumping system is described comprising a bracket being vertically fixed onto the connection end of a pump basement and also connected to a wellhead in order to support multiple fixed pulleys fixed on the same plane as the top end of the bracket), an electric motor and a speed reducer also successively being fixed to a lower end of the bracket. The end head of an output shaft of a speed reducer is connected by means of a crank whose top end head is connected with a movable pulley that is on the same plane as the fixed pulleys. A flexible cable vertically hung in the center of the wellhead is successively wound across the fixed pulleys and the movable pulley and then is locked onto the pump basement. The flexible cable is downwardly connected to a plunger element of an upper wellhead canned pump and also to a plunger element of a downhole oil well pump. This pumping system is characterized by good movement performance, high level of effective load factor, the ability to use the combination of its own driving power and special tools for complementing the characteristics of low power consumption on tripping the plunger of oil well pump, as well as relatively small dimension and low weight of the pumping system relative to conventional oilfield pumping units.
Owner:PETROCHINA CO LTD +1

Memristor-based Duffing-van der Pol oscillating circuit

ActiveCN103872986ASimple structureCompletely embodies dynamic behaviorOscillations generatorsNonlinear resistorCapacitance
The invention relates to a memristor-based Duffing-van der Pol oscillating circuit which comprises an excitation power supply e(t), a resistor R, a first capacitor C1, a second capacitor C2 and a memristor M, wherein one end of the excitation power supply e(t) is connected with one end of the resistor R, the other end of the resistor R is respectively connected with one end of the first capacitor C1 and one end of the second capacitor C2, the other end of the second capacitor C2 is connected with one end of the memristor M, and the other ends of the memristor M and the first capacitor C1 are both connected with the other end of the excitation power supply e(t). The oscillating circuit is a second-order oscillating circuit, adopts continuous nonlinear resistors and has the advantages that the circuit structure is simple, parameters are convenient to adjust, and dynamic characteristics of a Duffing-van der Pol oscillator can be completely reserved.
Owner:GUANGXI UNIV

Device and method for generating uniform and continuous discharge or plasma photonic crystals

The invention provides a device and a method for generating uniform and continuous discharge or plasma photonic crystals. The device comprises a discharge mechanism, a gas supply mechanism and a power supply mechanism. The discharge mechanism includes a hollow needle electrode, a dielectric block, and a liquid electrode. The hollow needle electrode is vertically inserted into the dielectric block and is connected with a gas cylinder in the gas supply mechanism through a dielectric tube. The liquid electrode is located below the hollow needle electrode. The hollow needle electrode is electrically connected with the high-voltage output end of a high-voltage DC power supply in the power supply mechanism. The liquid electrode is connected with a ground wire. According to the technical scheme of the invention, only the air in the atmospheric environment is used as a working gas, and the uniform and continuous discharge can be generated between the two electrodes. When an inert gas is introduced into the hollow needle electrode through the dielectric tube, periodically arranged plasma photonic crystals can be generated between the two electrodes. The device utilizes different working gases to generate uniform and continuous discharge or plasma photonic crystals at the atmospheric pressure. Therefore, the diversification of functions is realized.
Owner:HEBEI UNIVERSITY

Improving performance of computer program when they operating

The present invention, in various embodiments, provides techniques for improving performance of programs. In one embodiment, the program is written in the Java language and runs in the Java Runtime Environment (JRE) that includes a Java Virtual Machine (JVM) having a configuration. A control panel having access to the JVM is invoked. Via the control panel, a user observes the execution of the Java program, analyzes the results of the execution, changes the configuration of the JVM, and forces re-optimization of the critical portions of the running program. By repeating the above steps of observing the program execution, analyzing the results, changing the configuration of the Java machine, and forcing re-optimization of the critical portions of the program, the user improves the program's overall performance.
Owner:HEWLETT PACKARD CO

Experiment device for simulating atomic oxygen oxidation ground of super-high temperature heat-protection material

The invention relates to an experiment device for simulating atomic oxygen oxidation ground of a super-high temperature heat-protection material, and the device provided by the invention can be used for solving the problem that no device capable of simulating the high-temperature, low-pressure and atomic oxygen oxidation environments exists, and is suitable for simulating the atomic oxygen oxidation environment of the super-high temperature heat-protection material in different states. The experiment device provided by the invention comprises a quartz tube, an atomic oxygen generating device,an electromagnetic induction heating device and a pressure control device, wherein the output end of the atomic oxygen generating device is connected to the atomic oxygen input end of the quartz tube; the air output end of the quartz tube is connected with the air input end of the pressure control device; and the output end of the heating device is respectively connected with one input end of theinduction heating coil which is sheathed on the external wall of the middle of the quartz tube. The experiment device provided by the invention meets the experiment requirements of the atomic oxygen oxidation of the heat-protection material of a hypersonic aircraft at the temperature of 1000-2000 DEG C and the pressure of 10-5000Pa and is suitable for the oxidation action research under the atomic oxygen environment of the high-temperature material.
Owner:HARBIN INST OF TECH

Method for operating a fuel pump

The invention relates to a method for operating a fuel pump in order to guide fuel from the fuel container of an internal combustion engine, wherein the electric energy, which is in the form of pulses, is periodically guided to the fuel pump and the duration of the pulses is controlled according to the fuel required by the internal combustion engine. The frequency of the pulses is controlled in such a manner that, in the event of low pump capacity of the fuel pump, the frequency is controlled to a higher level than in the even of a high pump capacity.
Owner:VTESCO TECH GMBH

Method for preparing novel coal water slurry product from multiple materials

The invention provides a method for preparing a novel coal water slurry product from multiple materials. The method includes the following steps: (1) after raw coal is crushed, a material A is obtained; (2) after being modified together, sludge, optional coal slime, water and additive then undergo strong shear treatment, so that a material B is obtained; (3) the material B is ultrafinely ground, so that a material C is obtained; (4) the material A, part of the material C, water and additive are shaped and roughly ground, so that a material D is obtained; (5) after being mixed, the material D and the remaining material C undergo strong shear, and thereby the coal water slurry product is obtained. The grain size distribution of the multi-material coal water slurry prepared by the preparation method is reasonable, and the novel coal water slurry product has good stability, flowability and good atomizing effect, and is also applicable to the preparation of fuel and gasified coal water slurry; in addition, the preparation method is easy to implement, energy consumption is low, and the problem on how to utilize sludge and coal slime on a large scale can be reasonably solved.
Owner:CCTEG CLEAN ENERGY CO LTD

Image gamma correction method, scanning card, and display system

The invention discloses an image gamma correction method. The image gamma correction method comprises steps that a plurality of input parameter values are acquired; whether the plurality of input parameter values are changed is determined; when at least one of the input parameter values is changed, every gray scale of an input source gray scale bit number is mapped in a preset highest gray scale bit number range according to an acquired current brightness adjusting quantity and a current gamma value, and every gray scale after the mapping is quantified to acquire a current gamma correction table according to an acquired current target gray scale bit number; and gamma correction of an input source image is carried out according to the current gamma correction table. The invention also discloses a scanning card and a display system, which adopt the above mentioned image gamma correction method.
Owner:XIAN NOVASTAR TECH

Simulator capable of simulating breathing of human body

The invention provides a simulator capable of simulating breathing of a human body. The simulator comprises a simulated lung cavity (1), a controller (2), a power switch (3), an antenna (4) and an electric breathing pump (5), the simulated lung cavity (1) is made by using silica gel soft materials, the electric breathing pump (5) is connected with an air breathing pipeline, an outlet end of the air breathing pipeline extends out of the ground, when the power switch (3) is switched on, the simulator can start to work only by burying the simulator under the ground, and parameters of the simulator can be adjusted in real time by using the wireless radio frequency antenna (4) through the controller (2). The controller (2) controls exhaling and inhaling of the electric breathing pump (5) to enable the simulated lung cavity (1) to expand and contract to realize simulation effect of breathing of the human body. By adopting the technical features, compared with the prior art, the simulator capable of simulating breathing of the human body can simulate breathing of the human body more truly and is more convenient to adjust the parameters.
Owner:UNIV OF SCI & TECH OF CHINA

Digital pulse amplitude analyzer adopting spire forming algorithm

The invention relates to a digital pulse amplitude analyzer adopting a spire forming algorithm. The digital pulse amplitude analyzer comprises a detector, a preamplifier, an ADC (analog-to-digital converter), a FPGA (field programmable gate array) digital former and a processor. The FPGA digital former is adopted, so that operating speed and energy spectrum resolution of a nuclear pulse amplitude analyzer are improved, hardware cost is lowered, and stability and flexibility of a system are improved; the ADC is adopted to convert analog quantity into digital quantity, a digitized energy spectrum measuring method is adopted, and filtering and forming portions of the method are fully realized by a mathematical algorithm, so that influence of circuit noise is lowered due to the digitized processing mode; compared with conventional simulation forming, the digital pulse amplitude analyzer has the advantages of high resolution, high forming linearity, little temperature influence and convenience in parameter adjustment.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Deformation compensation method for machining arc-shaped parts

The invention discloses a deformation compensation method for machining arc-shaped parts and relates to the field of numerical control machining. The method includes the following steps that A, deformation numerical values are measured; B, statistics is performed on the deformation values; C, deformation compensation numerical values are calculated; D, rough machining is performed; E, a beam is additionally installed; F, numerical control machining numerical values are set; H, finish machining is performed on outer shapes; I, finish machining is performed on inner shapes; J, the beam is disassembled. Deformation directions and the deformation numerical values are estimated in advance, then in the process of numerical control machining, the deformation quantity is set apart, so that after machining, deformation is inevitably generated, the deformed arc-shaped parts just meet the size requirements of the arc-shaped parts, stress is not generated any more in the assembly process, and therefore the service life of the arc-shaped part can be effectively prolonged. The method is easy and convenient to operate. In addition, parameters are very convenient and rapid to adjust if in need, and the deformation compensation method has very practical value in the aspects of predicating and controlling the arc-shaped parts in the numerical machining process.
Owner:AVIC GUIZHOU AIRPLANE

Variable frequency hydraulic pipe network type excitation device

A variable frequency hydraulic pipe network type excitation device, comprising a hydraulic pump station, an excitation system and a variable frequency control system, wherein the device enables a fluid-filled pipe with an elastic support to vibrate through a hydraulic shock wave generated by a shock wave machine, so that a vibrated pipe network is used as an execution mechanism of the vibration to drive a vibration facility to vibrate. The variable frequency hydraulic pipe network type excitation device provided by the invention reduces the vibration quality and improves the efficiency of a hydraulic system, and the vibration parameter adjustment is more convenient, and the device can be matched with a vibrating screen to sieve and drain the mineral.
Owner:TAIYUAN UNIV OF TECH

Special environment material responsive online testing device based on oxyacetylene

The invention provides a special environment material responsive online testing device based on oxyacetylene, is composed of an oxyacetylene testbed, an oxyacetylene bottle, a reducing valve, a pressure gauge, a flowmeter, a regulating valve, a flow-limiting valve, an oxyacetylene spray gun, a bearing, a special environment material test sample, a sealing thermal insulating rubber mat, a clamp, an oxygen bottle, an optical filter support, a decoding amplifier, a laser displacement sensor, a controller, a converter, a thermocouple sensor, a data acquisition device, a fixed support, an optical filter, a colorimetric pyrometer, a three-dimensional adjusting holder and a tripod. The special environment material responsive online testing device based on oxyacetylene is capable of realizing online testing on the surface temperature, internal temperature and strain of the special environment material in the oxyacetylene test process, and capable of regulating parameters conveniently; and centering on the oxyacetylene device, the supporting sub-system and various special environment material responsive online detection and monitoring devices are arranged as auxiliary equipment; therefore, the testing device is low in construction, convenient for operation and wide in testing range.
Owner:HARBIN INST OF TECH

Electronic load

An electronic load includes a current control circuit and an interface circuit. The current control circuit is used for receiving a voltage, and outputting a measured current. The interface circuit is coupled to said current control circuit, for receiving said measured current, and providing an interface for instruments. The current control circuit and the interface circuit are coupled to a power supply under test.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

Ship dynamic positioning control method based on inverse system and internal model control

ActiveCN104142626AInternal model control structure is clearPrecise positioningAdaptive controlReference modelMathematical model
The invention provides a ship dynamic positioning control method based on an inverse system and internal model control. The ship dynamic positioning control method comprises the following steps of 1 establishing a ship dynamic system mathematic model; 2 constructing a pseudo-linear system about a ship; 3 designing an internal model controller of an inner ring; 4 calculating a reference model of a speed ring control system; 5 designing an internal model controller of an outer ring; 6 adding coordinate system transformation; 7 designing parameters of the inner ring controller; 8 designing parameters of the outer ring controller. By means of the ship dynamic positioning control method based on the inverse system and an internal model control algorithm, the problem of ship motion control can be reasonably and efficiently solved, the robustness is good, the positioning accuracy is high, and green control can be achieved.
Owner:GUANGDONG UNIV OF TECH

Purification device for electronic grade ultra-pure ammonia and electronic grade ultra-pure ammonia automatic online detection device

The invention discloses a purification device for electronic grade ultra-pure ammonia. The purification device comprises a liquid ammonia storage tank, a liquid ammonia pump, a vaporizer, an oil remover, a rectification tower, a terminal purifier, a condenser and a product storage tank. The rectification tower includes a first and a second rectification tower. The invention breaks through the limitation of a conventional ultra-pure ammonia purifying process, simplifies the ultra-pure ammonia purifying process, greatly reduces energy consumption of the whole production process, and improves production efficiency. The invention also provides an electronic grade ultra-pure ammonia automatic online detection device for use on the purification device. The detection device comprises an analysissampling assembly and a control system, has short sampling time and can analyze and reflect online product quality condition in shortest time so as to control the whole production process of the product.
Owner:浙江英德赛半导体材料股份有限公司

Waste fiber-fabric-inorganic particle four-layer casting composite stab-resistant sheet, preparation method and applications thereof

The invention relates to a waste fiber-fabric-inorganic particle four-layer casting composite stab-resistant sheet, a preparation method and applications thereof, wherein an inorganic particle-waste fiber cut section-fabric mixed and spaced four-layer structure is subjected to melting die-casting to form the composite stab-resistant sheet having a five-layer structure of a compact collision barrier layer, a gradient stacking layer, a fiber melt layer, a high-density stacking layer and a fabric melt layer. The preparation method comprises: mixing inorganic particles and fiber cut sections, paving, placing a fabric sheet, spreading inorganic particles on the fabric sheet, and covering with a fabric sheet, wherein the melting point of the fiber cut section is lower than the melting point of the fabric sheet, such that the fiber cut sections are molten in advance to settle the inorganic particles so as to obtain a gradient structure; and pressing the inorganic particles on the upper layerinto the fabric melt to form the composite stab-resistant sheet having the five-layer structure. According to the present invention, the prepared product has the high-efficiency collision barrier layer and the tough anti-brittle layer, and can be used for the individual protection dressing puncture-proof base materials for terrorism and riot prevention, fire protection, explosion prevention, earthquake search and rescue and national defense military.
Owner:DONGHUA UNIV

Carbon quantum dot nano-materials and preparation method and application thereof

The invention discloses carbon quantum dot nano-materials and a preparation method and application of the carbon quantum dot nano-materials. The method comprises the following steps: taking citric acid, mercaptoethylamine and polyethyleneimine, dissolving in ultrapure water, stirring uniformly, carrying out ultrasonic treatment, at the temperature of 120 to 170 DEG C, performing microwave heating, dialyzing a mixed subjected to reactive synthesis in ultrapure water through a dialysis bag, then drying by a vacuum rotary dryer, and collecting materials to obtain the nano-materials. According to the invention, mercaptoethylamine and citric acid are hydrothermally synthesized with polyethyleneimine to obtain carbon quantum dots with multiple biological functions under microwave controlled auxiliary heating conditions, thus the carbon quantum dots with characterization performances of different materials of high brightness fluorescence or high charges and the like can be obtained, and cell wall fluorescent markers of live plant cells with high aqueous-phase dispersion and low cytotoxicity, or materials which promote endocytosis of animal and plant cells and realize high-efficient absorption of external solutions, or materials of plant intact cells realizing the delivery of nucleic acid transfection and with cell walls are optimally selected based on changing synthesis conditions according to needs of different biological applications.
Owner:NANJING FORESTRY UNIV

Tobacco stem soaking extracting processing method for tobacco stem reproducing technology

InactiveCN103932380ASecondary drying is easyReduced processing performanceTobacco treatmentEngineering
The invention provides a tobacco stem soaking extracting processing method for a tobacco stem recombination reproducing technology, stem filament finished product yield can be improved, and tobacco stem using rate is effectively improved. The method comprises the following steps that tobacco stems are sent into tobacco stem expanding equipment for expanding processing, the tobacco stems after expanding are sent into soaking extracting equipment for soaking immediately, and after soaking extracting, the tobacco stems are sent into a squeezing-drying machine for solid-liquid separation. Through the tobacco stems processed with the method, all soluble matter in the tobacco stems can be basically extracted, the tobacco stems are processed into high-quality stem filaments in following processes, the method is used in middle-high-class cigarettes, and a new effective path is established.
Owner:ZHISI HLDG GRP

Device and method for while-drilling detection of formation interface through azimuthal resistivity

The invention discloses a device and method for while-drilling detection of a formation interface through azimuthal resistivity. The device comprises a non-magnetic drill collar, a circuit unit, a plurality of antennas and antenna tuning units corresponding to the antennas, wherein the non-magnetic drill collar serves as a carrier of the whole device and is provided with a compensation resistivity detection point. The circuit unit is installed inside the non-magnetic drill collar. The antenna tuning units are distributed on the outer circular surface of the non-magnetic drill collar and connected with the circuit unit. The method includes common resistivity measurement and azimuthal resistivity measurement, the distance between the device and the formation interface is calculated through the azimuthal resistivity measured value, previous real-time geological data are provided for well drilling, and the purpose of optimizing the well drilling quality is realized.
Owner:上海神开石油测控技术有限公司 +3

Base material flanging machine

The invention discloses a base material flanging machine which mainly comprises a frame, a positioning pin support, a protecting grating, a suspension button station, an electric cabinet, a lifting mechanism, a heating system, an edge covering mechanism and a positioning die set. The positioning pin support is fixed on the frame. The protecting grating is disposed on the lateral side of the frame. The suspension button station is disposed on the frame. The electric cabinet is disposed on the inner side of the frame. The lifting mechanism is disposed on the inner side of the frame. The heating system is disposed on the lifting mechanism. The edge covering mechanism is disposed on the frame. The positioning die set is disposed on the edge covering mechanism. The base material flanging machine has the advantages that electric PLC control is adopted, touch-screen control buttons are used, and an automatic circulation function is provided; the base material flanging machine is compact in overall structure, simple to mount and operate, visual in touch screen display, convenient in parameter adjustment, and the like.
Owner:天津市精大稀机械设备制造公司

Light-emitting diode (LED) lamp box used for collecting high-quality images of agricultural materials

The inventions relates to a light-emitting diode (LED) lamp box used for collecting high-quality images of agricultural materials. The LED lamp box comprise a box body, a red-green-blue (RGB) three-channel LED light source, a power line of the LED light source, an LED light source controller, an object stage, an adjusting support of the object stage, a lamp box door and the like. The LED lamp box is characterized in that the LED light source is fixed at the top of the lamp box through M3 cross-shaped sunk screws, the power line of the light source is led out of the top of the lamp box and connected with the LED light source controller, different illumination colors are configured through adjustment of the proportion of illumination intensity of three channels of red, green and blue, the object stage and the adjusting support of the object stage are fixed at the bottom of the lamp box, and the lifting and lowering of a lead screw is adjusted through a rotation handle to adjust the height of the object stage. When the LED lamp box is used, the high-quality images of the agricultural materials can be obtained through adjustment of the illumination intensity of the three channels of red, green and blue, the height of the object stage, a camera and camera parameters to further reduce the difficulty of an image analysis algorithm.
Owner:NANJING AGRICULTURAL UNIVERSITY

Hardware watchdog circuit of car electronic circuit

The invention discloses a hardware watchdog circuit of a car electronic circuit. The hardware watchdog circuit comprises a watchdog enabling control circuit, a zero-clearing input circuit, a timer unit and a timing overflow output circuit all of which adopts independent components, wherein when a product needs a watchdog function, the watchdog enabling control circuit is turned on, and the zero-clearing input circuit can periodically input a zero-clearing signal based on the design need of the product; no overflow of the product can be guaranteed when the system is normal; when the product is abnormal, the zero-clearing input end is not zero-cleared in time, and an overflow phenomenon of the timer occurs; the timing overflow output circuit serves as an executing mechanism of the watchdog circuit to output an overflow signal; and a microprocessor or a logic control circuit connected with the timing outflow output circuit processes the overflow signal in time to guarantee normal operation of the product or reduce damage caused by a product fault to the maximum extent. The hardware watchdog circuit of the car electronic circuit, disclosed by the invention, has the advantages of reducing cost, being convenient and simple to adjust parameters, being convenient to apply, and achieving high reliability, strong stability and simple circuit design.
Owner:YANFENG VISTEON ELECTRONICS TECH (SHANGHAI) CO LTD

High-entropy alloy film and preparation method thereof

The invention discloses a CoCrFeNiAl 0.3 high-entropy alloy film and a preparation method thereof. The preparation method of the CoCrFeNiAl 0.3 high-entropy alloy film comprises the steps that a to-be-treated sample silicon substrate is cleaned, and the cleaned sample substrate is placed on a substrate heating device of pulse laser deposition equipment; a high-entropy alloy target is fixed to a target rotating motor of the pulse laser deposition equipment; a vacuum chamber of the pulse laser deposition equipment is vacuumized, so that the vacuum degree of the vacuum chamber reaches a preset vacuum value; film-plating experimental parameters of the pulse laser deposition equipment are set, and pulse laser pre-sputtering is conducted on the sample substrate; and the sample substrate is plated with the high-entropy alloy film according to the film-plating experimental parameters. By adoption of the CoCrFeNiAl 0.3 high-entropy alloy film and the preparation method thereof, the film preparation process is simplified, and the industrial application cost of high-entropy alloy is reduced; and meanwhile, the uniform-element high-entropy alloy film can be conveniently prepared on the surfaceof a complex-structure part, so that the strength, wear resistance and hardness of the part are improved, and the service life of the part is prolonged.
Owner:SHENZHEN UNIV
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