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264results about How to "Address operational complexity" patented technology

Application program updating method and device

ActiveCN103309694AAddress operational complexitySolve the problem that the server cannot perform update policy controlProgram loading/initiatingTransmissionApplication softwareClient-side
The embodiment of the invention discloses an application program updating method and device. With the adoption of the technical scheme of the embodiment of the invention, a server can ensure whether a client has an application program in need of updating or not at present according to updating search messages comprising system messages and messages of an application program installed at present, which are reported by the client, and whether an application program in need of being updated accords with a corresponding updating rule or not; the client is prompted to update the corresponding application program when the corresponding updating rule is conformed, so that the operation of a client side when the application program is updated is simplified; an application program updating process is controlled through the matching of the corresponding updating rule. The problems in prior art that the operation of the client is complex in the application program updating process and a server side cannot update strategy control can be solved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Picture blurring method and device and electronic equipment

The invention discloses a picture blurring method and device and electronic equipment, and belongs to the field of picture processing. The method comprises the steps of obtaining a first picture and a second picture, with the same framing range, taken by the same camera; obtaining depth information according to the first picture and the second picture; determining the background region of the first picture according to the depth information; and blurring the content in the background region of the first picture. Thus, the problem that a user needs to open a picture through software and select the background region in the prior art is solved, the blurring effect is improved, and the user operation is simplified.
Owner:HUAWEI TECH CO LTD

A method and a system for remotely upgrading an electric vehicle

The invention provides a method and system for remotely upgrading an electric vehicle. The method comprises the steps that a controller manufacturer uploads an upgrading software package to a server of an Internet of Vehicles platform through a client; When the vehicle-mounted terminal of the electric vehicle is connected with the server through the Internet of Vehicles, the vehicle-mounted terminal acquires the upgrade version information, the target vehicle type information and the target controller information of the upgrade software package; The vehicle-mounted terminal obtains current version information of controller operation software corresponding to the vehicle according to the target vehicle type and the target controller information, and compares the current version informationwith the upgrade version information; If not, the vehicle-mounted terminal downloads and stores the upgrading software package through the Internet of Vehicles, and software upgrading is carried out when the vehicle is powered off and parks. The maintenance cost of the electric vehicle can be reduced, and the use convenience and intelligence of the electric vehicle are improved.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Service function chain path finding method based on segmentation routing technology

The invention discloses a service function chain path finding method based on segmentation routing technology. The method comprises the following steps: S1, generating a service function chain path finding request; S2, performing descending order sorting; S3, setting a source node and a target node; S4, obtaining a node set of a virtual network function; S5, calculating the shortest path accordingto the shortest path principle; S6, judging whether the shortest path is feasible; S7, judging whether there is a corresponding node or target node that is not marked; S8, performing path finding again; S9 adding a routing path, and adding a segment label number to a segment list; S10, updating the network resources; S11, obtaining a service function chain deployment path; S12, compressing the segment list; and S13, outputting the service function chain deployment path and he compressed segment list. By adoption of the service function chain path finding method disclosed by the invention, theproblems that the operation is complicated, path selection cannot be achieved under complicated judgment conditions, the function is poor, no optimization function is provided and that the practicability is low in the prior art are solved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Method for connecting wireless device to wireless access point and wireless device, intelligent terminal

The invention discloses a method for connecting a wireless device to a wireless access point and a wireless device, an intelligent terminal, the method is as follows: obtaining the configuration information of the wireless access point by the intelligent terminal; packaging the configuration information into the data frame, modulating the voice frequency to the data frame to obtain the continuous audio signal, playing the continuous audio signal through the self pronouncing device; receiving the audio signal by the wireless device having the distance to the intelligent terminal less than the preset distance through the self sound receiving device; demodulating the audio signal to obtain the data frame, extracting the configuration information from the frame; using the configuration information to connect to the wireless access point. The technical scheme can solve the problems that the access error is generated while the wireless device without human-computer interaction interface is connected to the AP, the cost is increased and the operation is complex. The continuous audio signal is adopted for transmitting the wireless AP configuration information, in the practical operating environment, the interference of the background noise can be avoided and the anti-jamming capability for transmitting the configuration information is strengthened.
Owner:GOERTEK INC

Automatic calibrator, calibration system and calibration method of testing equipment

The invention provides an automatic calibrator, a calibration system and a calibration method of testing equipment. The automatic calibrator comprises a controller and a gating module connected with the controller; the controller is used for sending a gating command according to preset setting information and controlling the automatic calibration of external testing equipment to be calibrated relative to corresponding external standard testing equipment; and the gating module is used for automatically gating the electric connection between the controller and a special testing channel of the corresponding standard testing equipment and the testing equipment to be calibrated according to the gating command. The invention solves such problems caused by manually inserting and pulling cables in the prior art as complex operation and large error, and the like.
Owner:BEIJING FANHUA HENGXING TECH

Test platform for combination properties of axial pulling and pressing, bending, torsion and vibration of composite material

The invention discloses a test platform for combination properties of axial pulling and pressing, bending, torsion and vibration of a composite material. The test platform comprises a pulling and pressing unit, a bending unit, a torsion unit and a vibrating unit; a fixed end of a clamping device is fixed on a workbench; the test platform integrates the static test of three single loads of pullingand pressing, bending and torsion with the static test of multi-load compound loading and is capable of realizing rotation under any combined states of pulling and pressing, bending and torsion so asto perform vibration test; a load space coupling model with combined load is established by simulating different work stations in practical production; an effective test platform is supplied for researching the influences of various loads on the material performances and the change rule of other performance parameters; the research on the deformation damage mechanism of the material under practical complex conditions can be boosted to some extent; the problems of complex operation, poor compatibility, and the like, of the prior art can be solved; the test platform has the characteristics of simple operation, high integration level, compact structure, various test modes, capability of supplying abundant test content, and the like.
Owner:NORTHEASTERN UNIV

Method for measuring shearing area of rock structral plane in direct shear test

The invention provides a method for measuring shearing area of a rock structral plane in a direct shear test. The method comprises the following steps of: collecting an image; cutting and filling the image; converting the image into a grayscale image; selecting a gray threshold according to the obtained grayscale image of the rock structral plane; converting the grayscale image of the rock structral plane into a black and white binary image on the basis of the selected gray threshold; calculating percentage, namely percentage of the shearing area of the rock structral plane in the direct shear test, of the area of a white part in the area of the whole image; figuring out total actual area of the rock structral plane through using a graduated scale adopted during shooting as a reference object; and figuring out the shearing area of the rock structral plane in the direct shear test. According to the invention, defects of complicated operation, complicated steps, low working efficiency, large manual error and the like in the traditional measuring method can be solved; moreover, as the operation is simple, an important practical significance is obtained in reducing workloads of geologists, improving measuring accuracy and increasing working efficiency; meanwhile, as lower cost is achieved, the method for measuring the shearing area of the rock structral plane in the direct shear test, provided by the invention, is easy to be popularized.
Owner:中部知光技术转移有限公司

Camera distortion correcting method based on square target model and perspective projection

The invention relates to a camera distortion correcting method based on a square target model and perspective projection. According to the method, firstly, a space coordinate system with the center of a camera as an original point is built, the plane equation of a grid point target plane on a camera coordinate system is calculated by the adoption of the square target model according to the coordinates of a target spot in the center of an image; a grid corresponding to the original image is generated on the plane, grid points are projected on an imaging plane, and ideal grid points are formed; according to the one-to-one correspondence relation between the grid points of the original image and the ideal grid points, interpolation is carried out in the image in a blocking mode, and each pixel on the original image is corrected to be at the ideal position. Compared with the prior art, a distortion model is not used, the computing process is simple, and the image distortion caused by errors of camera components and assembly is well overcome.
Owner:TONGJI UNIV

Vehicle wire harness girdling and peeling device

The invention relates to a vehicle wire harness girdling and peeling device which comprises a first support plate. Two moving lugs are respectively arranged on the side wall of the first support plate, and a movable screw is arranged between the two moving lugs through a bearing. A moving motor is arranged on the right end of the movable screw through a coupling, and the moving motor is arranged on a motor bracket. A moving block is arranged on the central section of the movable screw through threads, the upper and lower ends of the moving block are symmetrically provided with two moving slide bars, and the two moving slide bars are respectively mounted on two first linear slide rails. The two ends of each first linear slide rail is mounted on the side wall of the first support plate through screws. Four fixing posts are symmetrically welded on the side wall of the moving block, and a mounting plate is welded on the tail end of the four fixing posts. A wire peeling mechanism is arranged on the left side of the side wall of the mounting plate, and a girdling mechanism is arranged on the right side of the side wall of the mounting plate. Integrated processing function of automatically girdling and wire-peeling can be realized during vehicle wire harness processing.
Owner:YJH ELECTRICAL EQUIP

Unpackingg device for multi-purpose bottle package and unpacking method thereof

The invention discloses an unpacking device suitable for a multi-purpose bottle package. The unpacking device comprises a film cutting platform, a conveying platform, a film clamping platform, a plastic and film separating mechanism, a bottle conveying track, and a tray taking mechanism, wherein a first vacuum suction cup is arranged on the film cutting platform, and a film cutting manipulator isarranged at one side of the film cutting platform; the film cutting manipulator is provided with a film cutting cutter, and is used for performing annular four-sided cutting or three-sided cutting ofa packaging film on a bottle packaging material, and the starting end of the conveying platform butts up to the film cutting platform; the film clamping mechanism is arranged at one side, away from the film cutting manipulator, of the conveying platform, and is used for clamping a top film of the bottle packaging material of which the three sides are cut, and the input end of the plastic and filmseparating mechanism is in butt joint with the tail end of the conveying platform, and is used for separating a bottom film of the bottle packaging material of which the four sides are annularly cut and the three sides are cut from the bottom of a container bottle; the bottle conveying track is in butt joint with the output end of the plastic and film separating mechanism, and the tray taking mechanism is arranged above the bottle conveying track, and is used for taking a paper tray and the top film at the top of the bottle packaging material of which the four sides are annularly cut. The unpacking device can be used for unpacking the packaging film of the whole plastic film bottle packaging material, and can also be used for unpacking the packaging film and the paper tray of the paper tray plastic film bottle packaging material.
Owner:TRUKING TECH LTD

Civil aircraft undercarriage assembling and disassembling vehicle suitable for multiple aircraft types

The invention relates to a civil aircraft undercarriage assembling and disassembling vehicle suitable for multiple aircraft types. The civil aircraft undercarriage assembling and disassembling vehicle consists of a mobile chassis, a ball screw lifting device, a six-degree-of-freedom parallel fine adjustment mechanism, a force sensing device and a multihole detachable support. By redesign of the civil aircraft undercarriage assembling and disassembling vehicle, translation operation at any direction is realized by McKenna's wheels; large-travel lifting operation is realized by four ball screw mechanisms; multi-orientation position and attitude fine adjustment operation is realized by the six-degree-of-freedom parallel fine adjustment mechanism; assembling and disassembling work of the undercarriage of multiple aircraft types is realized by the multihole detachable support; the force sensing device is additionally arranged at the chassis part of the six-degree-of-freedom parallel fine adjustment mechanism, so that precise force control during unloading is realized; the whole assembling and disassembling process is automatically controlled. By the use of unique module structure design, the problems of single applicative aircraft type, difficulty in alignment operation, complicated operation process, low adjustment precision, low efficiency and the like of the conventional civil aircraft undercarriage assembling and disassembling vehicle are solved.
Owner:EAST CHINA JIAOTONG UNIVERSITY

Information pushing method and apparatus

The application discloses an information pushing method and apparatus. According to one specific enforcement, the method comprises: acquiring a current scene model, wherein the scene model comprises operation behavior information and / or browsing behavior information of a user on at least one station in a preset time period, user features of the user and station features of the station; matching the current scene model with at least one preset scene model, and acquiring the preset scene models of which similarities with the current scene model are greater than a preset threshold; and based on an information pushing rule associated with the acquired preset scene models, selecting at least one piece of pushing information from a plurality of pieces of to-be-pushed information and carrying out pushing. According to the enforcement mode, the problems of complex pushing method operation and poor expansibility are solved.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Oryzanol composition and preparation method thereof

The invention discloses a pharmaceutical composition of oryzanol, which comprises the oryzanol, phospholipid, bile acid and / or salt of bile acid. The pharmaceutical composition effectively improves the water solubility and the stability of the oryzanol and has better grain diameter and stability than the prior product, and further, the invention provides injectio and freeze-dried powder of the pharmaceutical composition, and preparation methods thereof.
Owner:BEIJING CENTURY BIOCOM PHARMA TECH

Mobile phone communication monitoring system device of controllable cradle head

The present invention relates to a mobile phone communication monitoring system device of a controllable cradle head. The device comprises a communication monitoring mobile phone device, a cloud server, an intelligent control mobile phone terminal and the controllable cradle head. The communication monitoring mobile phone device is installed on the controllable cradle head and is connected to the cloud server to carry out data transmission and data processing. The cloud server is connected to the intelligent control mobile phone terminal which is used for remotely controlling the controllable cradle head to realize cradle head rotation to capture a face image and searching best video communication and monitoring angles. A camera of the communication monitoring mobile phone device carries out automatic focusing, and the clarity of the face image is improved. The mobile phone communication monitoring system device is combined with the cloud platform, the storage capacity and the safety factor of the information are improved, and the information fusion and intelligent analysis of a communication video and a monitoring video image are realized.
Owner:DONGHUA UNIV

Urine analysis and test card for urine microalbumin/urine creatinine

The invention relates to a urine analysis and test card for urine microalbumin / urine creatinine. The urine analysis and test card for the urine microalbumin / urine creatinine comprises a sample pad, wherein a loading hole is formed in the sample pad. The urine analysis and test card for the urine microalbumin / urine creatinine is characterized in that a urine microalbumin test card and a urine creatinine test card are arranged on the sample pad respectively; one end of the urine microalbumin test card and one end of the urine creatinine test card are connected with the loading hole respectively; an albumin detection line and a first quality control line are arranged on the urine microalbumin test card; the albumin detection line is positioned at the end near to the loading hole; a urine creatinine detection line and a second quality control line are arranged on the urine creatinine test card; the urine creatinine detection line is positioned at the end near to the loading hole; a first detection hole is formed in the back side of the urine microalbumin test card and at the position corresponding to the albumin detection line; a second detection hole is formed in the back side of the urine creatinine test card and at the position corresponding to the urine creatinine detection line. The urine analysis and test card for the urine microalbumin / urine creatinine can solve the problem of interference caused by the situation that urine protein is singly used as a detection index; a preparation method is simple, and easy to operate.
Owner:无锡博慧斯生物医药科技有限公司

Transparent fireproof gel and preparation method for composite fireproof glass

The invention discloses transparent fireproof gel. The transparent fireproof gel comprises the following ingredients in parts by weight: 100 parts of alkaline silica sol, 30-60 parts of curing agent and 5-55 parts of assistant, wherein the assistant is prepared from 5-20 parts of stabilizer, 0-10 parts of dispersant, 0-15 parts of flame retardant and 0-10 parts of charring agent. The invention further discloses a method for preparing composite fireproof glass by utilizing the transparent fireproof gel of the above formula. The transparent fireproof gel is prepared through taking the alkaline silica sol as a substrate and obtaining a stable inorganic dispersion solution with high solid content by a concentrating method. Fire endurance of the composite fireproof glass prepared by employing the transparent fireproof gel can reach 25-143 minutes; and by the preparation method, the problems during preparation of the transparent fireproof gel and the composite fireproof glass by taking silicon dioxide particles as a substrate that the cost is relatively high, the dispersing is difficult, the operation is complicated, the stability is poor, and the solid content is low are solved.
Owner:应急管理部天津消防研究所

Potato full-automatic annular peeling device

The invention relates to a potato full-automatic annular peeling device. The device comprises a bottom plate, wherein two supporting plates are symmetrically arranged at the upper end face of the bottom plate; a feed hopper is soldered between upper ends of the two supporting plates; two limiting openings are symmetrically formed in the inner wall of the lower end face of the feed hopper; a limiting mechanism is arranged at each limiting opening, and the speed of feeding potatoes into the feed hopper is limited by the two limiting mechanisms which are symmetrically arranged; a peeling mechanism is arranged on the inner wall of each supporting plate through a connecting rod, and the two peeling mechanisms of the two supporting plates are oppositely and symmetrically arranged; and the two peeling mechanisms which are symmetrically arranged are used for quickly peeling potatoes entering the feed hopper. The potato full-automatic annular peeling device has a function of efficiently and quickly peeling potatoes, does not require parameter re-adjustment for potatoes with different diameters or sizes, has the advantages of high automatic degree, large application range, high peeling speed, good peeling effect, high work efficiency and the like, and is simple and convenient to operate.
Owner:凤阳小果食品加工有限公司

Lightning arrester test method and lightning arrester test system

The application provides a lightning arrester test method and a lightning arrester test system. The method comprises the following steps: getting multiple pieces of sampling data of the full current of a lightning arrester; filtering out interference signals in the multiple pieces of sampling data of the full current to get multiple filtered output currents; calculating out a resistive current fundamental component and a third-harmonic component according to the multiple filtered output currents; and calculating out the internal status indicators of the lightning arrester according to the resistive current fundamental component and the third-harmonic component. For charged test of the lightning arrester using the method, neither complex circuit nor voltage measurement is needed, and the operation is simple. Moreover, the temperature factor is considered in calculation of the internal status indicators of the lightning arrester, so test is no longer affected by ambient temperature. The problem that lightning arrester test is complex in operation and is affected by temperature is solved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1

Library guiding identification system

The invention provides a library guiding identification system. The library guiding identification system comprises: a book reservation system used for inquiring and reserving a book to be borrowed; an identity identification device used for identifying the identity of a subscriber; a positioning device used for determining the position of the subscriber; a path generating system used for determining a shortest walking route between the current position of the subscriber and the position of the book to be borrowed in real time; and a guiding device used for generating a guiding signal for guiding the subscriber to the position of the book to be borrowed on the walking route determined by the route generating system after the identity of the subscriber is determined by the identity identification device. The library guiding identification system can guide readers to the positions of target books, realizes the borrowing and return of the books by the readers themselves, and solves the problem of difficult in book finding during book borrowing and a series of problems of book return caused complex operation of management personnel, long book returning time and seriously damaged books.
Owner:HUBEI UNIV OF TECH

A method for rapid detection of salt content in Fuling mustard by near-infrared spectroscopy

The invention relates to a method for rapidly detecting the salt content in Fuling pickled mustard by using near-infrared spectroscopy. The detection steps of the method of the invention include sample collection, standard determination of the salt content of each sample, collection of each sample spectrum establishment, inspection model, product detection and classification, and the like. The method of the present invention has the characteristics of no need for pretreatment, no pollution, on-line detection, and simultaneous determination of multiple components, and is more environmentally friendly, fast, simple and quick, and can use chemometrics to establish a qualitative and quantitative method for determining the salt content in pickled vegetables such as Fuling mustard. quantitative model. The innovation of the present invention is that the near-infrared spectrum cannot reflect the characteristic absorption peak of inorganic table salt, but different Na+ and Cl- ions are released due to the different content of table salt in the sample, which affects the absorption peak of water, so the content of table salt can be quickly determined by modeling , and at the same time perform clustering according to the salt content into low-salt, medium-salt and high-salt beneficial effects.
Owner:杨季冬

Automatic potato cleaning and slicing equipment

The invention relates to automatic potato cleaning and slicing equipment. The automatic potato cleaning and slicing equipment comprises a baseplate; two L-shaped support plates are symmetrically mounted on two sides of the upper end surface of the baseplate; a cleaning ball is mounted between the upper end surfaces of the two L-shaped support plates; the two L-shaped support plates achieve an effect of fixing and supporting the cleaning ball; a feed hopper is arranged on the left side of the upper end of the cleaning ball; potatoes to be processed are fed in the cleaning ball through the feed hopper; a rotary cleaning mechanism is mounted at the upper end of the cleaning ball for rotationally scrubbing the potatoes in the cleaning ball; the lower end of the rotary cleaning mechanism extends to the lower half side of the cleaning ball; and the rotary cleaning mechanism is high in extension degree to guarantee clean scrubbing of the potatoes on the upper and lower sides in the cleaning ball. The automatic potato cleaning and slicing equipment can realize integral processing functions of cleaning and slicing of the potatoes, needs no manual operation, is high in automation degree, and has such advantages as convenience operation, fast cleaning speed, fast slicing speed, long processing time and high working efficiency.
Owner:何平

Increment and decrement adjusting device and method for electronic system and electronic system

The invention discloses an increment and decrement adjusting device for an electronic system. The increment and decrement adjusting device comprises a touch sensing module, a processing module, an increment and decrement control module and an LED control module. The processing module is used for processing the touch position and the touch gesture which are sensed by the touch sensing module, and thus touch coordinate information and touch gesture information are obtained; a user touch area is judged based on the touch coordinate information, and when it is judged that the user touch area is an increment and decrement adjusting area, a first control signal for adjusting the increment and decrement of the electronic system is generated according to the prestored first function relation among the touch coordinate information, the touch gesture information and the increment and the decrement; a second control signal used for adjusting the on-and-off of LED lamps is correspondingly generated according to the prestored second function relation among the touch coordinate information, the touch gesture information and the illumination modes of the LED lamps.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

Integrated measuring device and method for flow velocity and depth of flume test

The invention discloses an integrated measuring device and method for the flow velocity and the depth of a flume test. The integrated measuring device for the flow velocity and the depth of the flumetest comprises a measuring device body, and the measuring device body comprises a measuring instrument and a monitoring probe; the integrated measuring device further comprises switching assemblies for mutual switching of velocity measuring and depth measuring and further comprises an adjusting device for adjusting the position of the measuring device body, and the adjusting device comprises a left-right position adjusting assembly, a front-rear position adjusting assembly and a height adjusting assembly; and the switching assemblies are connected with the height adjusting assembly. Accordingto the integrated measuring device, velocity measuring and depth measuring can be converted, and a depth measuring device and a velocity measuring device are integrated; the problems that traditionalequipment is limited in measuring space, inflexible in moving, complex in operation and long in consumed time can be effectively solved; and compared with a traditional flume scouring test, the integrated measuring device for the flow velocity and the depth of the flume test is simple in structure, small in occupied space, convenient to operate and high in efficiency.
Owner:SOUTHWEST JIAOTONG UNIV

Embedded dual system updating method and system

The invention discloses an embedded dual system updating method. The embedded dual system updating method comprises the following steps of S1, receiving and parsing update instructions under boostloader mode to obtain an update mode and updated image files; S2 judging whether the update mode is the overall update mode of the image files, if so, turning to S3, and if not, turning to S4; S3, reading the partition information of the memory device of the updated image files and repartitioning the memory device; S4, writing the portion of the image file, which is in one-to-one correspondence with the update mode, in the partition of the memory device, which is in one-to-one correspondence with the update mode. The invention discloses an embedded dual system updating system. The embedded dual system updating method and device update any needed partial image or whole image in a simple and flexible mode and successfully solve the problems of complex operation and long duration, which technicians encounter when updating images of a system.
Owner:宋易霄

Touch control method and device of application object

Provided are a touch control method and device of an application object. The method comprises the steps that a first touch signal is generated based on a first touch event, and the first touch event comprises M touch points which are detected; if the duration time of the first touch signal is longer than a first preset value, a judging point is placed in a corresponding display area of the application object, and the distances between the judging point and all touch points are all smaller than a second preset value, so that a first trigger signal for selecting the application object is generated; the position of the judging point is determined by the average value of the corresponding coordinates of all the touch points; after the application object is selected, a fourth touch signal is generated based on a fourth touch event, wherein the fourth touch event comprises the step that the judging point is detected to move towards the corresponding area of a target position or to be placed in the corresponding area of the target position; if the fourth touch signal disappears, a third trigger signal which determines the area corresponding to the target position to be as the display area of the application object is generated. The touch control method and device of the application object can quickly, simply, conveniently and effectively select and move the application object.
Owner:SPREADTRUM COMM (SHANGHAI) CO LTD

Pre-coding matrix selection method, device and system

The embodiment of the invention discloses a pre-coding matrix selection method, a device and a system. The method comprises the steps that pilot frequency information sent by a sending end is received through the current channel; according to the pilot frequency information, an equivalent channel matrix of the current channel is estimated; inner product and modulo operation are respectively carried out on the equivalent channel matrix and each pre-coding matrix in a preset pre-coding codebook collection, so as to acquire a number of module values; the pre-coding matrix corresponding to the maximum module value in a number of module values is selected as a target matrix; and the target matrix is fed back to the sending end, so that the sending end selects the target matrix to carry out pre-coding on a signal sent through the current channel. The embodiment of the invention further discloses a pre-coding matrix selection device and system. According to the invention, the pre-coding matrix selection method, device and system are provided; a pre-coding selection process can be simplified; the calculation amount in the pre-coding selection process is reduced; and the problems of large calculation amount and complicated operation of the pre-coding matrix selection method in the prior art, are solved.
Owner:HUAWEI TECH CO LTD

Large-area high-efficiency carbon fiber coating process

The invention provides a large-area high-efficiency carbon fiber coating process. The large-area high-efficiency carbon fiber coating process is characterized by including the following steps that thesurface of a to-be-coated part is evenly coated with a layer of carbon fiber dipping glue and curing agent; carbon fiber prepreg is laid on the surface of the part according to needed thickness; thecarbon fiber prepreg is covered with an isolation film; a layer of release agent is smeared on an aluminum alloy mold, and the aluminum alloy mold is press-fit on the surface of the to-be-coated part;the part is put in heating equipment to be heated; after the carbon fiber prepreg is completely cured into a carbon fiber finished product, the mold is separated from the carbon fiber finished product, and the isolation film on the surface is removed; the cured carbon fiber surface is subjected to quality testing; and then a layer of carbon fiber surface glue is smeared on the carbon fiber surface. The process can be used for carbon fiber coating of the surfaces of multiple materials such as metal, engineering plastic, ceramic and foamed plastic, the coated carbon fiber surface is high in evenness, the process is especially suitable for the surfaces of parts of unmanned aerial vehicles and automobiles, and the impact resistance of the unmanned aerial vehicles and the automobiles is improved.
Owner:DALIAN JIAOTONG UNIVERSITY
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