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

3193results about How to "Improve control efficiency" patented technology

Tiltrotor controlled by double-propeller vertical duct

InactiveCN101643116ANo yaw momentReduce duct sizeRotocraftNacelleControl manner
The invention provides a tiltrotor controlled by a double-propeller vertical duct. The tiltrotor, using the design of parallel twin-rotor and conventional aerodynamic configuration, consists of a fuselage, straight wings, rotors, a nacelle, an aileron, a vertical empennage, a rudder, an elevator, a horizontal empennage, a duct end cover, a vertical duct, an undercarriage, a power and decelerationsystem, a propeller power input shaft, a lower propeller, an upper propeller, louver-type slipstream sheets, a propeller gearing and collective-pitch controlling device, a propeller gear box supporting structure, a duct end cover driving device, a duct end cover motion slide rail and a slipstream sheet controlling device. Compared with the cyclic pitch control mode, the tiltrotor of the inventionsimplifies the operations during the vertical flight and the flight conversion and improves the reliability by using the structure of the double-propeller vertical duct to control the vertical flightand the conversion of the flight mode, and the tiltrotor has the advantages of long control force arm, high control efficiency and simple structure. Therefore, the tiltrotor constitutes a novel aircraft with significant development potential and promising future.
Owner:BEIHANG UNIV

Vehicle travelling control method and system

The invention discloses a vehicle travelling control method and system, and relates to the technical field of automatic control. Multiple road images at different angles in front of a vehicle are obtained in real time from cameras arranged on different positions of the vehicle, effective road images dead ahead the vehicle are obtained after processing of the images, lane line information is recognized from the road images dead ahead the vehicle, the deviation angle and the deviation distance between the current vehicle traveling direction and a required lane line are calculated, and the vehicle is further controlled to travel according to the deviation angle and the deviation distance. Complex formula calculations can be avoided, efficiency is improved, missed information can be obtained according to actual images, accuracy is further improved, the scheme is simple and efficient, the control is accurate and free of limiting of application scenes, images at multiple angles can be obtained conveniently under the complex conditions that many vehicles are on roads, parallel line travelling occurs frequently, the roads are not standard, the vehicle speed is high and the like, adaptability to multiple scenes is higher, and automatic control over the vehicles can be achieved better.
Owner:BEIJING UNION UNIVERSITY

Method and system for controlling air-conditioner

The invention discloses a method for controlling an air-conditioner. The method includes the steps that A, the operating mode of the air-conditioner is detected in real time; B, when the air-conditioner is in a refrigeration mode or in a dehumidification mode, the indoor environment temperature and the first indoor environment humidification of the air-conditioner are collected, and the operating time of the air-conditioner in the refrigeration mode or in the dehumidification mode is counted; C, when the operating time of the air-conditioner in the refrigeration mode or in the dehumidification mode reaches first preset time, whether the judging conditions that the first indoor environment humidification is larger than first preset humidification and the indoor environment temperature belongs to a first preset temperature interval can be met at the same time or not is judged, if yes, the step D is executed, and if not, the step A is executed; D, the operating maximum frequency of a compressor of the air-conditioner is set to be a first frequency, and the current operating frequency of the compressor of the air-conditioner is lowered according to the first frequency. The invention further discloses a system for controlling the air-conditioner. By means of the method and system for controlling the air-conditioner, the maximum operating frequency of the compressor of the air-conditioner is lowered, and condensation is prevented.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD

Intelligent vehicle running control method and system

The invention discloses an intelligent vehicle running control method and system, and relates to the technical field of automatic control. The intelligent vehicle running control method comprises the steps of: obtaining multiple images of roads in front of a vehicle in different angles in real time by cameras arranged at different positions of the vehicle so as to obtain efficient images of the road in front of the vehicle; extracting lane line information and performing coordinate transformation on the lane line information and demarcating the information at a corresponding position of a road right information infusion coordinate system; obtaining road right information within a preset running range, judging the current road right state based on the road right information, and controlling the vehicle to run based on the road right condition and the lane line information. The intelligent vehicle running control method and system can avoid a multifarious formula algorithm, not only improves efficiency, but also can obtain missing information based on a practical image, further improves accuracy, gives overall consideration for various road right information, can judge a next running control way more exactly and more efficiently based on specific conditions, can leave out a process of a plenty of inefficient calculation, and improves the vehicle running efficiency and accuracy greatly.
Owner:BEIJING UNION UNIVERSITY

Parking lot vehicle control method and device

The invention discloses a parking lot vehicle control method. The method comprises steps of: after charging operation is performed on a vehicle, receiving a license plate identification device corresponding to a charging pile and identifying a license plate number of the charged vehicle; when receiving a request that the vehicle leaves a parking lot exit or a request of electronic payment, acquiring vehicle payment information corresponding to the license plate received from a cloud end, wherein the vehicle payment information comprises charging payment information and parking payment information; and when the payment operation corresponding to the vehicle payment information is not finished, deducting the parking cost and the charging cost corresponding to the payment operation from a third-party system associated to the license plate number, and directly controlling a controller at the parking lot exit to open a gate at the parking lot exit when the vehicle leaves the parking lot gate. The invention also discloses a parking lot vehicle control device. According to the invention, intelligent processes of parking lot management are accelerated and efficiency of parking lot vehicle control is increased.
Owner:西安全星智能电子有限责任公司

Axial eddy current damper based on spiral transmission method

The invention relates to a large axial eddy current damper manufactured through a spiral transmission method. The axial eddy current damper based on the spiral transmission method comprises a spiral pair transmission assembly and a rotary eddy current damping generator. The rotary eddy current damping generator comprises an upper disc and a lower disc which are consistent in size, are vertically parallel and are made of magneto-conductive materials, wherein a rotary disc which is parallel with the upper disc and is made of electricity-conductive materials or magneto-conductive materials is arranged between the upper disc and the lower disc, the rotary disc is installed on the spiral pair transmission assembly and rotates along with the spiral pair transmission assembly, a plurality of pairs of magnets are further arranged between the upper disc and the lower disc, and the opposite magnetic poles of an upper magnet and a lower magnet of each pair of magnets are opposite in polarity. According to the axial eddy current damper based on the spiral transmission method, axial movement of a controlled structure is converted into the rotary movement of an inner structure of the damper to be controlled through a spiral pair, the control efficiency is largely improved, and the ratio between the damping force of the axial eddy current damper and the self weight is improved to the level equal to that of a viscous fluid damper or higher level.
Owner:湖南省潇振工程科技有限公司

Method and device for realizing state machine

The invention discloses a method and a device for realizing a state machine. The main technical scheme of the method comprises the following steps of: determining the currently generated event and the current state of the state machine; searching a corresponding relationship between a predetermined state and a predetermined event with a response relationship and judging whether the response relationship exists between the currently generated event and the current state of the state machine or not; if the response relationship exists between the currently generated event and the current state of the state machine, determining a processing function identifier and a switched next state corresponding to the current state of the state machine and the currently generated event according to a processing function identifier and a switched next state corresponding to the predetermined state and the predetermined event with the response relationship, and controlling the state machine to jump tothe determined next state after a processing function corresponding to the determined processing function identifier is successfully executed; and if the response relationship does not exist between the currently generated event and the current state of the state machine, controlling the state machine to keep the current state. The state machine is realized by the technical scheme; state switching efficiency is improved; and easy maintenance is achieved.
Owner:RUIJIE NETWORKS CO LTD

Energy-storage type alternating current and direct current mixed micro-grid and control method thereof

The invention discloses an energy-storage type alternating current and direct current mixed micro-grid and a control method thereof. The energy-storage type alternating current and direct current mixed micro-grid comprises an alternating current micro-grid, a direct current micro-grid, a battery energy-storage system and an energy management system EMS, which are connected with an external grid control center. The control method of the energy-storage type alternating current and direct current mixed micro-grid comprises the following steps of initializing the EMS to acquire information data of the alternating current micro-grid, the direct current micro-grid and the battery energy-storage system; acquiring information data of an external public grid in real time; regulating and controlling the alternating current micro-grid, the direct current micro-grid and the battery energy-storage system according to the acquired data. The energy-storage type alternating current and direct current mixed micro-grid and the control method thereof have the advantages that the energy utilization efficiency can be improved, the size of a transformer can be reduced, networking and controlling are more flexible, the cost is reduced, and the power supply reliability of the whole system is improved.
Owner:惠州美亿瑞创电气设备有限公司

Cradle head control method based on mobile phone and built-in gravity sensor

The invention discloses a cradle head control method based on a mobile phone and a built-in gravity sensor. The cradle head control method comprises the following steps of: (1) establishing a three-dimensional coordinate system for the built-in gravity sensor of the mobile phone; (2) recording a current position of the mobile phone and a remote cradle head position, and establishing a corresponding relationship between the current position of the mobile phone and the remote cradle head position; (3) setting a sampling interval, and regularly sampling a parameter value of the built-in gravity sensor; (4) calculating changes (including horizontal and vertical angle offsets) of the current position of the mobile phone and a position of the mobile phone at a previous sampling time according to the sampling value; (5) inputting the horizontal and vertical angle offsets into a cradle head control command generating module; (6) executing an integration calculation on each input time positionparameter of the mobile phone by the cradle head control command generating module, and generating a remote cradle head control command according to a remote cradle head control protocol; and (7) inputting the remote cradle head control command into a control command output queue, and transmitting a control command to a remote cradle head control unit through a network according to a command transmission policy to realize the control. According to the cradle head control method disclosed by the invention, the mobile phone is simulated to be a remote cradle head, thus the mobile phone is controlled to realize the control of the remote cradle head.
Owner:HANGZHOU DIANZI UNIV

Method using NIR spectroscopy to monitor components of engineered wood products

Method of use of near infrared (NIR) spectroscopy for quantitative analysis of resin-wood composites, and methods of making engineered wood products using calibrated near infrared (NIR) spectroscopic instrumentation for quantitative analysis of resin-wood composites.
Owner:HUBER ENGINEERED WOODS

Piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper and control method thereof

The invention discloses a piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper which comprises a vibration damper body and a vibration damper controller. The vibration damper body comprises a cylinder barrel, a pressure supporting floating piston, a middle isolation floating piston, a piston rod, piezoelectric generation modules, a spring pressing plate, a force transfer spring, a spring clamping seat, a lower permanent magnet, a magnetic coil, an upper permanent magnet, a magnetism isolating plate, a piston, an excitation coil winding, an electromagnetic induction coil fixing rod and an electromagnetic induction coil. A control box is arranged on the outer wall of the cylinder barrel, the vibration damper controller is arranged inside the control box, and a rectifier, a storage battery charging circuit, a first controllable constant current source circuit and a second controllable constant current source circuit are further arranged inside the control box. The invention further discloses a control method of the piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper. The piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper has the piezoelectric and electromagnetic induction dual energy feedback function, can achieve not only a damping change function but also a rigidity change purpose, and has good vibration damping performance.
Owner:XIAN UNIV OF SCI & TECH

Method, device and system for controlling multiple display devices

The embodiment of the invention relates to the technical field of mobile terminals, in particular to a method, device and system for controlling multiple display devices. The method includes the steps of obtaining wireless network signal strength values of the display devices, obtaining a wireless network signal strength value of at least one intelligent terminal, located in the same wireless network, of the display devices, calculating a signal strength value interval according to the wireless network signal strength value of at least one intelligent terminal and a preset signal strength modification value, determining the relation between the wireless network signal strength value of each display device and the signal strength value interval, and controlling the work states of the display devices according to the determination results. By means of the method, the process of controlling the display devices is simplified, and efficiency of controlling the display devices is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Screen control method and device and terminal

ActiveCN107831999ASimplify the setup processImprove the efficiency of on-screen and off-screen controlInput/output processes for data processingAutomatic controlComputer engineering
The embodiment of the invention discloses a screen control method and device and a terminal, and belongs to the field of human-computer interaction. The method is used for the terminal with a foldingdisplay screen. In a folded state, the display area of the folding display screen is exposed. The method comprises the steps that in the folded state, a touch signal triggered on the folding display screen is collected; according to the touch signal, the holding state of the terminal is determined; according to the holding state, the predetermined portion of the display area of the folding displayscreen is controlled to be lit up, and the other portions, except the predetermined portion, of the display area are controlled to go out. By means of the embodiment, the folding display screen can be automatically controlled to be lit up and go out in the folded state, in the whole process, manual settings of a user are not needed, the setting process is simplified, and the efficiency of controlling the folding display screen to be lit up and go out is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Device, system and method for obtaining vital sign information of a subject

The present invention relates to device, system and method for obtaining vital sign information of a subject (14). To enable reliably obtaining vital sign information of a subject, in particular of the subject's heart rate, the proposed device comprises an input unit (21) for obtaining a set of image data (31) detected from a skin portion (24) of the subject (14) allowing the extraction of the subject's heart rate (51) and a set of detection data (31, 41) detected from a body portion of the subject (14) allowing the extraction of the subject's respiration rate (53) or representing the subject's respiration rate (53), a heart rate extraction unit (22) for extracting the subject's heart rate from said set of image data (31) by use of photoplethysmography, a prediction unit (23) for predicting changes of the subject's heart rate based on the subject's respiration rate extracted from or represented by said set of detection data, and a control unit (24) for controlling one or more settings of said heart rate extraction unit (22) based on the predicted changes of the subject's heart rate.
Owner:KONINKLJIJKE PHILIPS NV

Home appliance network system and method for operating the same

A home appliance network system and method of operating the system are disclosed herein. The home appliance network system includes a plurality of home appliances connected to a home-built network for transmitting and receiving data via the network, and includes a system for independently storing and updating status information or product information of a specific home appliance according to an input control command The home server of the device monitoring module. When a user monitors product information of a home appliance to control the home appliance, the home server can display the product information more quickly, thereby improving the control speed. In addition, the home server uses a smaller amount of network system resources, thereby enabling more efficient networking.
Owner:LG ELECTRONICS INC

Autonomous underwater vehicle vertical plane under-actuated motion control method

InactiveCN101833338AAbility to learn adaptivelyConvenient online debuggingPosition/course control in three dimensionsGlobal planningVertical plane
The invention provides an autonomous underwater vehicle (AUV) vertical plane under-actuated motion control method, which comprises the steps that: (1) initialization setting is performed on the AUV; (2) a top-layer control computer transmits a mission and finishes the global planning; (3) a motion control computer receives the feedback information of a sensor, performs control calculation by using a self-adaptive neuro-fuzzy inference system-based auto-disturbance rejection controller, and outputs a control command, namely an elevator angle delta s of the stern; (4) a steering engine executes the control command, finishes the coordination control of AUV depth and pitch attitude, and realizes the motion control under the AUV vertical plane under-actuated constraint; and (5) whether the mission is finished is judged, if the mission is finished, the data is saved and the voyage is ended, and if the mission is not finished, the control command is continuously calculated by the motion control computer. The AUV vertical plane under-actuated motion control method is suitable for the under-actuated, strong-coupling and complex motion relationship of the AUV in the vertical plane motion process, and can realize precise motion control.
Owner:HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products