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39 results about "Front Controller pattern" patented technology

The front controller software design pattern is listed in several pattern catalogs and related to the design of web applications. It is "a controller that handles all requests for a website", which is a useful structure for web application developers to achieve the flexibility and reuse without code redundancy.

Comprehensive plant production management system and method

InactiveCN102156923ARealize fully automatic collection and monitoringThe growth environment is clearly understoodData processing applicationsWatering devicesMonitoring systemEngineering
The invention discloses a comprehensive plant production management system and an implementation method thereof. The comprehensive plant production management system comprises an environment monitoring system, a front controller and a background management center, wherein the environment monitoring system acquires growth environment parameters and growth status parameters of plants in a production field; the front controller uploads the growth environment parameters and the growth status parameters to the background management center, and controls a production management subsystem to execute corresponding production management operations according to control instructions sent by the background management center; and the background management center receives the growth environment parameters and the growth status parameters uploaded by the front controller, and sends the control instructions to the front controller. In the system, as the growth environment parameters and the growth status parameters of the plants in the field are acquired, and are uploaded to the background management center through a network, the background management center can automatically analyze the growth environment parameters and the growth status parameters, or sends the control instructions to the front controller through a human-machine interaction means to control the production management subsystem to perform corresponding production management operations on the plants according to the control instructions, therefore the probability of needing a person to visit the production field is reduced, and the production efficiency is improved.
Owner:华建武 +1

Solar multi-conjugate adaptive optical system

ActiveCN102621687ARealize high-resolution imagingSimplify the difficulty of decouplingOptical measurementsOptical elementsHigh resolution imagingCoupling
The invention provides a solar multi-conjugate adaptive optical system. The solar multi-conjugate adaptive optical system comprises a lower atmospheric wave front sensor, a middle and upper atmospheric wave front sensor, a lower atmospheric wave front corrector, a middle and upper atmospheric wave front corrector, a wave front controller, an optical relay system, an imaging subsystem and other necessary optical components. The system has the advantages that sunspots or grain structures on the surface of the sun are taken as beacons and wave front detection is conducted on multiple areas at the same time, so as to obtain wave front distortion caused by turbulence in a large field range; wave front aberration caused by different turbulent layers is calculated by utilizing a tomography algorithm; and at last, the wave front correctors positioned in conjugate positions of the corresponding turbulent layers are controlled to correct the atmospheric turbulence in a layered manner, so as to finally realize high-resolution imaging in the large field range. The solar multi-conjugate adaptive optical system has the advantages that the sequence of the conjugate positions of the high and the lower turbulent layers is adjusted through the optical relay system, so that the lower turbulent layer is firstly compensated and corrected and the accuracy of the detection and the correction is increased; and due to the use of the tomography algorithm, errors caused by the coupling of the wave front aberrations of the different turbulent layers are reduced.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Self-adaptation optical system near-field wave-front sensor calibration device and calibration method based on phase-diversity method

InactiveCN102889935ARealize full optical path aberration correctionImproved wavefront controlOptical measurementsTesting optical propertiesWavefront sensorPupil
The invention discloses a self-adaptation optical system near-field wave-front sensor calibration device and a calibration method based on a phase-diversity method. The self-adaptation optical system near-field wave-front sensor calibration device consists of a wave-front corrector, a spectroscope, a near-field wave-front sensor, a wave-front controller, an imaging system and a phase-diversity wave-front sensor. According to the method, the phase-diversity wave-front sensor is used for measuring the static aberration of the whole system, and the wave-front controller is used for controlling the wave-front corrector to correct the static aberration; and after the static aberration is corrected, the zero point at the reference position of the near-field wave-front sensor at the pupil plane position is calibrated or the zero point of the absolute aberration is set, and the two zero points are used as the wave-front control objective of the self-adaptation optical system to effectively correct the static aberration of the whole optical path. According to the self-adaptation optical system near-field wave-front sensor calibration device and the calibration method, the static aberration of the whole optical path can be effectively corrected, the wave-front control error caused by the non-linear response of the corrector can be avoided, and the correction capability of the self-adaptation optical system can be improved obviously without obviously increasing the system complexity and the additional aberration.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Power matching method for electric tractor

The invention discloses a power matching method for an electric tractor. A power output shaft transmission box, a second differential box, a rear transmission, a first driving motor, a front controller, a rear controller, a first differential box, a front axle transmission and a second driving motor are included. According to the power matching method of the electric tractor, the motor efficiencyduring working is high, the rotating speed range of an efficient area is wide, the transmissions with 1-3 gears can be adopted, a transmission system is simplified, meanwhile, the motor high-torque range is wide, the torque reserve coefficient is high, the start-up and acceleration properties are superior to the start-up and acceleration properties of a traditional internal combustion engine, compared with an ordinary fuel vehicle, the advantages of zero emission, low noise, easy operation and the like are further achieved, the power matching method is an optimal alternative scheme for solvingthe various problems confronted by the fuel vehicle, through arrangement of the power output shaft transmission box, power supply of a rear agricultural machine is convenient, through arrangement ofa PTO clutch, the power output shaft transmission box can be conveniently disconnected and connected, and some drawbacks of the internal combustion engine type tractor can be effectively overcome.
Owner:LUOYANG INTELLIGENT AGRI EQUIP RES INST CO LTD

Multi-band high-resolution tomographic imaging device for solar atmosphere based on adaptive optical system

The invention discloses a multi-band high-resolution tomographic imaging device for solar atmosphere based on an adaptive optical system. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system is mainly composed of a collimating mirror, a wave front corrector, a shrinkage beam system, a dichroic beam splitter, a shack-hartmann wave front sensor, a fine tracking wave front sensor, a wave front controller, a blue light imaging channel, a red light imaging channel, a near infrared imaging channel and a data storage system. Different bands of sunlight are corresponding to different heights of the solar atmosphere. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system realizes the high-resolution tomographic imaging of the solar atmosphere through simultaneously imaging multiple bands of sunlight and using the adaptive optical system to eliminate the influence of atmosphere turbulence on ground-based telescope imaging. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system uses the adaptive optical system to guarantee the space definition of images, multiple bands of sunlight enter different imaging channels successively according to the wavelength, and the energy utilization of each imaging channel is improved. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system has an important application prospect in the sun observation field and is significant for the solar physics research.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

IGBT (Insulated Gate Bipolar Translator) driving circuit for novel high-frequency high-voltage switching power supply

The invention relates to an IGBT (Insulated Gate Bipolar Translator) driving circuit for a novel high-frequency high-voltage switching power supply, comprising a switching control circuit (1), a pulse transformer isolating circuit (2) and a voltage stabilizing circuit (3); a front controller MCU (Microprogrammed Control Unit) generates an IGBT driving signal and inputs into a high-speed two-circuit in-phase driver MC33152; an output end is connected with a primary circuit of the pulse transformer isolating circuit, and is isolated by the pulse transformer isolating circuit and transmitted to a secondary circuit; the output of the secondary circuit of the pulse transformer is connected with the input end of the voltage stabilizing circuit, and the output end of the voltage stabilizing circuit is respectively connected with the gate and emitter of the IGBT. The invention has the following characteristics of small voltage fluctuation of an input stage, quick switching response, low power consumption of switching on and off and complete isolation between the input stage and the gate, and a series resistor in the voltage stabilizing circuit can effectively inhibit high-frequency parasitic oscillation, thus effectively reducing the mutual interference between the driving circuit and the IGBT, improving the accuracy of the IGBT driving signal, and ensuring more reliable, safe and accurate driving control of the IGBT.
Owner:CHANGSHU YINGNA ENERGY TECH

Method and device for control of coolant flow distribution of electric automobile drive system

ActiveCN107499113AReasonable distribution ratioSolve the problem of unreasonable distribution ratioElectric machinesCooling/ventillation arrangementCoolant flowElectric machine
The invention discloses a method and device for control of coolant flow distribution of an electric automobile drive system. The control method comprises the steps that current temperatures of a front controller and a front motor in a front drive system, as well as current temperatures of a rear controller and a rear motor in a rear drive system are acquired; first ratios of the current temperatures of the front controller to the current temperatures of the rear controller, as well as second ratios of the current temperatures of the front controller to the current temperatures of the rear motor are computed; amplitude-limiting computation is conducted on maximum ratios among the first ratios and the second ratios, so coolant flow distribution proportional coefficients of a front drive loop and a rear drive loop are acquired; and the coolant flow distribution is conducted according to the coolant flow distribution proportional coefficients. The computation method for coolant flow distribution proportions disclosed by the invention considers the difference in cooling effects of a coolant with the same flow rate on the controllers and the motors, namely the coolant flow distribution proportions are more rational. Hence, the problem in irrational coolant flow distribution proportions of the electric automobile is solved.
Owner:BORGWARD AUTOMOTIVE CHINA CO LTD

Integrated monitoring and controlling system for looped network unit

An integrated monitoring and controlling system for a looped network unit comprises a looped network unit front-end controller, a looped network unit data acquisition system and a background system, wherein the looped network unit data acquisition system is connected to the looped network unit front-end controller and transmits acquired data to the looped network unit front-end controller in realtime, the looped network unit front-end controller controls a device connected to the looped network unit front-end controller according to the data of the looped network unit data acquisition systemand is connected with the background system and used for transmitting data to the background system, the background system performs processing analysis and storage and is in communicating connection with the looped network unit front-end controller, processed data is used for the looped network unit front-end controller, the background system sends out a control instruction to control the looped network unit front-end controller to give an alarm and to be remotely connected to a to-be-controlled device of the looped network unit front-end controller. The system can comprehensively monitor a running state of a looped network unit device and improves the running reliability of a power distribution network.
Owner:KAIFENG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER

Solar multi-conjugate adaptive optical system

ActiveCN102621687BRealize high-resolution imagingSimplify the difficulty of decouplingOptical measurementsOptical elementsHigh resolution imagingCoupling
The invention provides a solar multi-conjugate adaptive optical system. The solar multi-conjugate adaptive optical system comprises a lower atmospheric wave front sensor, a middle and upper atmospheric wave front sensor, a lower atmospheric wave front corrector, a middle and upper atmospheric wave front corrector, a wave front controller, an optical relay system, an imaging subsystem and other necessary optical components. The system has the advantages that sunspots or grain structures on the surface of the sun are taken as beacons and wave front detection is conducted on multiple areas at the same time, so as to obtain wave front distortion caused by turbulence in a large field range; wave front aberration caused by different turbulent layers is calculated by utilizing a tomography algorithm; and at last, the wave front correctors positioned in conjugate positions of the corresponding turbulent layers are controlled to correct the atmospheric turbulence in a layered manner, so as to finally realize high-resolution imaging in the large field range. The solar multi-conjugate adaptive optical system has the advantages that the sequence of the conjugate positions of the high and the lower turbulent layers is adjusted through the optical relay system, so that the lower turbulent layer is firstly compensated and corrected and the accuracy of the detection and the correction is increased; and due to the use of the tomography algorithm, errors caused by the coupling of the wave front aberrations of the different turbulent layers are reduced.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Efficient household peanut kernel stir-frying machine

The invention discloses a high-efficiency household peanut stir-fry machine, which comprises a stir-fry machine body, the bottom of the stir-fry machine body is connected with a bottom plate through a column, and a controller is arranged on the upper surface of the bottom plate, and the front of the controller is A speed regulating knob is arranged on the surface, and a power switch and a running display light are arranged in sequence from left to right under the speed regulating knob in the horizontal direction. A motor is fixed at the center of the upper surface of the bottom plate through a fixing rod, and a motor is arranged above the motor. The rotating shaft is sleeved with a fixer on the top of the rotating shaft. In the present invention, the device is sleeved with a fixer on the top of the rotating shaft, and the top of the fixer is provided with a mounting screw hole for use with the rotating shaft, which makes the installation and disassembly of the fixer very convenient, and enables the user to clean up the inside of the device. More convenient, the device installs the stir-frying slices on the holder through the rotating shaft, so that the device can increase the stir-frying range of the stir-frying slices by changing the rotating speed of the motor, so that the practicability of the device is stronger.
Owner:CHENGDU KECHUANGGU TECH CO LTD

On-line and intelligent particle taking system

The invention provides an on-line and intelligent particle taking system. The on-line and intelligent particle taking system comprises a control server, a central controller, a front controller, a rotary taker, an intelligent feeder, a centralized separator, a communication system and a sensing system; the control server is an organizer and a distributor of coordinated operation of the system; thecentral controller is in charge of acquiring and forwarding instruction information of the system; the front controller is in charge of executing an instruction issued by the central controller and controlling the intelligent feeder to complete a related instruction motion; the rotary taker is in charge of on-line taking on a production line and controlling the flow of taking; the intelligent feeder is in charge of quantitatively taking samples at a determined site; the centralized separator is in charge of collecting samples obtained at many sampling points; the sensing system is in charge of obtaining working state information of the intelligent feeder and controlling running. The on-line and intelligent particle taking system can effectively solve the problem in a traditional on-line sampling mode that the limit is brought to a modern processing enterprise due to factors like the lack of timeliness and safety and artificial interference.
Owner:长沙荣业软件有限公司

Control system of dual-drive electric automobile

The invention relates to a control system of a dual-drive electric automobile, comprising a power supply and indicating/illuminating lamps. The control system is characterized by comprising a front controller and a rear controller which respectively drive and are connected with a front drive differential motor and a rear drive differential motor; moreover, the front controller and the rear controller are respectively provided with an accelerator and connected with the Hall sensor of the permanent magnet rotor of an induction motor; each differential motor comprises a gear box and a brushless high-speed motor; the gear box comprises a speed change structure and a differential; the differential comprises a planet carrier, a planet gear and a half axle gear; the high-speed motor drives and is connected with the planet carrier by a transmission shaft, drives the half axle gear by the planet gear and respectively drives and is connected with left wheels and right wheels; the front drive controller controls the automobile to work on a flat pavement; and the drive controller is started to increase the power and the output torque of the motor when clamping a slope, thus realizing the energy-saving effect. The motor and the speed change structure have the advantages of high efficiency, low temperature increase and large torque; the large torque output greatly improves the service life of the accumulator of the electric automobile and prolongs the charging period; therefore, the control system has high practicality.
Owner:浙江兴美电动汽车有限公司

Foundation pit supporting method capable of automatically controlling horizontal displacement of underground diaphragm wall

The invention provides a foundation pit supporting method capable of automatically controlling horizontal displacement of an underground diaphragm wall. According to the method, a set of horizontal supports are arranged in the length direction of a foundation pit, and hydraulic jacks are arranged in the horizontal supports; each set of horizontal support is provided with an underground water level gauge, a water level monitor, a front controller and a pressure monitor; the water level monitor is used for recording the underground water level depths in real time, wherein the underground water level depths are measured by the underground water level gauge in real time, the difference value of the underground water level depths on the two sides of the underground diaphragm wall is determined, and the difference value of the underground water level depths is uploaded to a central control device automatically; and numerical simulation is conducted according to the project conditions of the foundation pit, the supporting force value which is generated by the underground water level change and needs compensation is determined, the underground water level change is monitored automatically through the underground water level gauges, supporting force compensation is conducted on the horizontal supports automatically through the hydraulic jacks, and accordingly the horizontal displacement, caused by phreatic water and rainwater in the foundation pit, of the underground diaphragm wall is reduced.
Owner:CHINA RAILWAY 16 BUREAU GRP BEIJING METRO ENG CONSTR +2

Foldable smart electric bicycle

The invention relates to the technical field of smart electric bicycles and in particular to a foldable smart electric bicycle comprising a foldable frame and an electric drive system, wherein the foldable frame is formed by a main horizontal pipe, a front handlebar vertical pipe, a rear seat vertical pipe, and a foldable bracket; the main horizontal pipe is composed of a front controller horizontal pipe and a rear battery pack horizontal pipe; the foldable bracket includes a horizontally arranged rectangular frame, four pillars disposed on the lower sides of the four corners of the rectangular frame, and positioning rods connected to the lower side of the rectangular frame and configured to position the pillars and the rectangular frame when the pillars are erected; the pillars and the positioning rods are all hinged to the rectangular frame; the positioning rods and the pillars are arranged one to one; the lower ends of the positioning rods and the pillars are provided with corresponding positioning holes; a driving motor comprises a casing fixed by a fastening screw to a front cover and a rear cover; the topmost end in the rear cover is a magnetic ring; the bottom of the front cover is provided with a round of mesh vent holes; and a fixed bearing is installed in the middle portion in the front cover.
Owner:TIANJIN JUPENG BICYCLE FITTINGS
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