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78results about How to "Simple strategy" patented technology

Method for operating a display system in a vehicle for driving into a parking space

A method for operating a display system in a vehicle (03) when driving into a parking space (06), uses a camera (01) with an image processing unit in which the image data obtained by the camera (01) can be processed and a display screen (02) in the interior of the vehicle. After the vehicle has moved to the vehicle position in which the first parking-space icon (07) has been brought to overlay the parking space (06) shown in the real-time image, a second parking-space icon (09) is faded into the real-time image on the display screen (02) by the image processing unit, with this second parking-space icon (09) in the real-time image in true scale indicating a region which after moving along a first segment (15) of the travel path (14) towards the parking space (06) must be brought to overlay the parking space (06) shown in the real-time image. After the vehicle has moved to the vehicle position in which the second parking-space icon (09) has been brought to overlay the parking space (06) shown in the real-time image, a third parking-space icon (11) is faded into the real-time image on the display screen (02) by the image processing unit, with said third parking-space icon (11) in the real-time image in true scale indicating a region which after moving along a second segment (16) of the travel path towards the parking space (06) must be brought to overlay the parking space (06) shown in the real-time image.
Owner:MAGNA DONNELLY

Method for operating a display system in a vehicle for driving into a parking space

A method for operating a display system in a vehicle (03) when driving into a parking space (06), uses a camera (01) with an image processing unit in which the image data obtained by the camera (01) can be processed and a display screen (02) in the interior of the vehicle. After the vehicle has moved to the vehicle position in which the first parking-space icon (07) has been brought to overlay the parking space (06) shown in the real-time image, a second parking-space icon (09) is faded into the real-time image on the display screen (02) by the image processing unit, with this second parking-space icon (09) in the real-time image in true scale indicating a region which after moving along a first segment (15) of the travel path (14) towards the parking space (06) must be brought to overlay the parking space (06) shown in the real-time image. After the vehicle has moved to the vehicle position in which the second parking-space icon (09) has been brought to overlay the parking space (06) shown in the real-time image, a third parking-space icon (11) is faded into the real-time image on the display screen (02) by the image processing unit, with said third parking-space icon (11) in the real-time image in true scale indicating a region which after moving along a second segment (16) of the travel path towards the parking space (06) must be brought to overlay the parking space (06) shown in the real-time image.
Owner:MAGNA DONNELLY

Low power consumption outer rotor radial magnetic bearing with upper-attracting and lower-repulsing structure of permanent magnet

The invention relates to a low power consumption outer rotor radial magnetic bearing with an upper-attracting and lower-repulsing structure of a permanent magnet, belonging to the field of the magnetic suspension bearing. The magnetic bearing consists of an outer magnetic-conducting ring, an outer magnetic-insulating ring, stator iron cores, an exciting coil, an inner permanent magnetic semi-ring, rotor iron cores, an inner magnetic-insulating ring, an inner magnetic-conducting ring, an outer permanent magnetic ring, air gaps and a rotating shaft, wherein eight electromagnetic poles and four permanent magnetic poles are established in the positive and negative directions of an X axis and a Y axis of the stator iron core in total; the inner magnetic-insulating ring is arranged among permanent magnetic iron cores and an electromagnetic iron core on a stator; the inner permanent magnetic semi-ring is clamped between the two permanent magnetic iron cores in the negative direction of the Y axis of the stator by the inner magnetic-conducting ring; the air gaps are arranged among the stator iron cores and the rotor iron cores; the outer magnetic-insulating ring is arranged between a permanent magnetic iron core ring and an electromagnetic iron core ring; the outer magnetic-conducting ring is arranged between the permanent magnetic iron core ring and the permanent magnetic iron core ring; and the outer permanent magnetic ring is clamped at the middle part of the outer permanent magnetic ring. The structure can solve the problems of gravity and power consumption of the rotating shaft of the magnetic suspension bearing, thus leading the bearing to have the advantages of low power consumption, reliable performance and convenient manufacture and the like. In addition, the low power consumption outer rotor radial magnetic bearing can be used as no-contact support parts of rotating equipment, such as a wind-driven generator, a motor, a molecular pump, a high-speed bearing.
Owner:SHANDONG UNIV OF SCI & TECH

Preparation method of Co-Al active material coated nickel-cobalt-aluminum ternary layered positive electrode material

The invention discloses a preparation method of a Co-Al active material coated nickel-cobalt-aluminum ternary layered positive electrode material. The method comprises the steps: employing LDH as a coating material precursor, and coating the surface of an NCA ternary material precursor with the coating material precursor; mixing lithium salt with the NCA ternary material precursor, and performinghigh-temperature calcination to prepare the nickel-cobalt-aluminum ternary layered positive electrode material. According to the material, the outer layer of the NCA ternary material is coated with anLi-Co-AlO2 coating layer which has certain electrochemical activity, so the performance of the battery is improved under the condition that the capacity of the battery is not lost. A Co-Al lithium compound has a more stable lattice structure and has a positive effect on the cycling stability of the material. Besides, in the lattice structure of the compound, some defect vacancies can be reservedin the structure due to the mutual doping influence of the compound, so that electron conduction and ion diffusion are facilitated, and the rate capability of the battery is improved. The method is simple to operate, novel in strategy and obvious in effect.
Owner:TIANNENG SAFT ENERGY JOINT CO

Fan coil prediction control method

ActiveCN110410960ABest control valueAdjust the amount of control in real timeMechanical apparatusNeural network controllerOptimal control
The invention provides a fan coil prediction control method. The fan coil prediction control method comprises the following steps that S1, a prediction model is established, and an indoor temperaturedynamic process is modeled and predicted by using the prediction model; S2, a prediction controller is realized by adopting a three-layer feedforward neural network, an indoor temperature value at thecurrent moment and an indoor temperature set value at the next moment are used as input of a neural network controller, output of the neural network controller is the control amount capable of adjusting the indoor temperature, the neural network controller is subjected to online rolling optimization by adopting a variational method, the optimization objective can make the optimal objective function to be optimal, and therefore the optimal control amount is obtained; S3, the indoor temperature is adjusted according to the value of the optimal control amount obtained after optimization. According to the fan coil prediction control method, the optimal control amount is obtained through predictive control rolling optimization to adjust the indoor temperature, due to the fact that factors suchas temperature error and energy consumption are comprehensively considered by the optimal objective function, the system has the energy-saving effect while the system enable the indoor temperature and the set value to be consistent.
Owner:广州市特沃能源管理有限公司

SSVEP brain-computer interface asynchronous control system

The invention discloses an SSVEP brain-computer interface asynchronous control system. The asynchronous control system comprises a frequency identification module and an asynchronous classification module, collected electroencephalogram data is subjected to data processing to extract corresponding steady-state visual evoked characteristic signals, the steady-state visual evoked characteristic signals are used for mode identification of experiment tasks, and after an instruction with the maximum possibility is identified, the instruction enters the asynchronous classification module corresponding to the instruction; The frequency identification module adopts a feature extractor to extract signal features reflecting user intention from electroencephalogram from the preprocessing part, processes the obtained signal features by using a correlation analysis method, and finds out the frequency with the maximum correlation coefficient; And the asynchronous classification module is used for judging whether the instruction is a control instruction or an idle instruction, when the instruction is output, feedback exists below the corresponding stimulus block, and otherwise, no feedback existson the screen. According to the method, the frequency is identified firstly, and then the control state and the idle state are identified on the basis of frequency identification, so that the feasibility of the current state (control state/idle state) of the brain of the user is judged.
Owner:TIANJIN UNIV

Movement-based data-distributed cooperative service system

The invention discloses a movement-based data-distributed cooperative service system. The movement-based data-distributed cooperative service system comprises a metadata automatic extracting module, adata grid node module, a data conversion operation module, a network safety control module, a data service automatic releasing module and a distributed data query engine, wherein the metadata automatic extracting module is used for extracting metadata of remote sensing data in each data center to build a metadata library; the data grid node module is used for interacting with the metadata library; the data conversion operation module is used for converting input and output parameters of a data source of a mobile service and a data source of a non-mobile service and an interoperation protocol;the network safety control module is used for setting and managing user permission according to a preset safety strategy, and performing safety control management on a data request initiated by a user; the data service automatic releasing module is used for providing a mobile service interface and a non-mobile service interface externally; and the distributed data query engine is used for realizing distributed query of a distributed heterogeneous data source. Through adoption of the movement-based light data-distributed cooperative service system disclosed by the invention, a data network system is simpler, efficient, and easy to extend and maintain.
Owner:HUNAN PUTIAN TECH

Pre-ignition chamber fuel supply system and engine

The invention discloses a pre-ignition chamber fuel supply system and an engine with the pre-ignition chamber fuel supply system. The pre-ignition chamber fuel supply system comprises a pre-ignition chamber device and an air inlet device; the air inlet device is communicated with the pre-ignition chamber device; the pre-ignition chamber device is communicated with the engine; the air inlet device comprises an air inlet pipeline and a gasification mixing device used for gasifying and mixing fuel oil and air flowing in from the air inlet pipeline; and the air inlet pipeline penetrates through the gasification mixing device to be communicated with the pre-ignition chamber device. The pre-ignition chamber adopts a pre-mixing mode, so that the equivalence ratio of the ignition position of the pre-ignition chamber is easier to guarantee, the mixing quality is improved, and coking and soot generation caused by too thick mixed gas are avoided. The high-pressure mixed gas is prepared when used, a high-pressure gas storage device is omitted, the temperature of the compressed mixed gas is increased, and the ignition stability is further improved. After a throttle valve is selected at the air inlet position, the preparation amount of the mixed gas may be in direct proportion to the load of the engine, and no or only a simple electric control device is required.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Distributed power source optimal allocation method suitable for power distribution network

The invention relates to a distributed power source optimal allocation method suitable for a power distribution network. The method includes the following steps that: original data information is obtained, and the position of a balance node, the total capacity of distributed power source connection and the capacity step of the distributed power source connection are determined; when nodes are not connected into distributed power sources, the first-order grid loss sensitivity coefficients of the nodes are obtained; the node are separately connected into a capacity-set distributed power source, and the first-order grid loss sensitivity coefficients of the nodes are obtained; a sensitivity correction matrix is obtained; nodes with the minimum first-order grid loss sensitivity coefficients are connected with a capacity-step distributed power source; after the nodes are connected into the capacity-step distributed power source, the first-order grid loss sensitivity coefficients of the nodes are corrected through the sensitivity correction matrix, and single-step allocation schemes are recorded; and the previous step is repeated until the connection of the nodes to the distributed power sources achieves the total capacity of the distributed power source connection, and optimal allocation can be completed. With the distributed power source optimal allocation method adopted, a large quantity of power flow calculation can be eliminated, and the effectiveness and efficiency of optimization can be realized.
Owner:STATE GRID CORP OF CHINA +1

A voltage equalizing circuit and a voltage equalizing method for a DC capacitor voltage of a multilevel converter

The invention discloses a voltage equalization circuit and a voltage equalization method for DC capacitors of a multi-level converter. The voltage equalization circuit is formed in a way that: N DC capacitors Cn on the DC side of a diode-clamped multi-level converter are all connected with the corresponding input ends of a voltage equalizing switch array consisting of a plurality of auxiliary switching devices; n is one of 1, 2, ..., N; the output end of the voltage equalizing switch array is connected with an auxiliary DC capacitor (C0); the control end of each auxiliary switching device in the voltage equalizing switch array is connected with a control device of the multi-level converter; and N is a difference obtained by subtracting 1 from a level number of the multi-level converter. The circuit can realize the voltage equalization and stabilization of the DC capacitors under any power factor condition, particularly in the transmission of active current to free the PWM depth of the converter from the restrictions of DC voltage stabilization conditions and ensure the realization of active or reactive transmission under any modulation depth condition, and has a simple structure, low cost and high reliability.
Owner:成都拓及兴通科技有限公司

Coordination compound as well as preparation method and application thereof

The invention belongs to the technical field of medical materials, and discloses a coordination compound as well as a preparation method and application thereof. The coordination compound is prepared from anthocyanin and metal ions; the anthocyanin has very high oxidation resistance and good antibacterial performance, and phenolic hydroxyl groups in the anthocyanin structure can be chelated with the metal ions, and can also chemically react with amino, sulfydryl, hydroxyl or carboxyl and the like on the surface of biological tissue under a mild condition to generate covalent bonds; and wound skin tissue is chemically anchored, and strong adhesive force is provided by forming the covalent bonds, so that wound adhesion and tissue repair in a wet state are realized, namely, a metal-polyphenol coordination polymerization principle is adopted for preparing the anthocyanin-metal ion coordination compound. According to the invention, a stent material is prepared by using an electrostatic spinning technology, a multifunctional electrospun fiber dressing capable of realizing in-situ monitoring and treating of bacterial infection is prepared by loading the anthocyanin-metal ion coordination compound, and the application prospect is wide.
Owner:SOUTHERN MEDICAL UNIVERSITY
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