953 results about "Computers technology" patented technology

A course guiding system based on non-zero start point and knowledge point in network education belongs to the field of computer technologies. The invention includes an initial knowledge domain construction module, an individualized knowledge domain generation module, an individualized learning route generation module, a history learning record module, a knowledge structure level evaluation module, and an individualized learning resource recommendation module. With knowledge point as the core, the invention constructs courses into the corresponding knowledge point tree and graph among knowledge points; learners are examined on knowledge points at each stage; by the analysis of learners' learning data and test of learning effect, the system obtains the learning status of learners at each knowledge point, their learning prediction result and knowledge point structure, recommends the corresponding learning resources and students to learners, and helps learners form the self-organized learning community to enhance the learning quality.

One system to identify the multi-mode biologic characteristic status bases on iris and person face. The biology character collection unit gathers pictures of iris and person face by two absolute gather channels and its collection sustaining flat roof makes users with different stature to input iris and person face pictures freely and cozily. The biology character identify unit uses picture disposing and Wavelet transform technology to get character template and to calculate the matching percent of iris characteristic template and mesh degree of person face character template, and get the final identify result by data fusion method. The biology character data bank storage the final inborn character template and congruence iris character template on person face character template to keep the privacy of biology character data and to increase the security of system. It combines biology character, mode identification, data amalgamation and computer technology to identify people figure with low error rate for iris identify and person face identify.

The invention discloses a method, a device and a system of access authentication, belonging to the field of computer technologies. The method of access authentication comprises the following steps that a device identification of a visited device is obtained; the device identification and a user account of an access device are transmitted to a third-party device, and the third-party device is used for transmitting an authentication request to a login end when the device identification is bound with a user account and the user account is different from the user account of the access device, and transmitting an access password of the visited device to the access device after the access allowed response fed back by the login end is received; and the visited device is visited by the received access password. Through carrying out authentication on the login end in the third-party device, after authentication is successful, the access password is transmitted to the access device, and the access device visits the visited device according to the access password; the problems that a user needs to manually input the access password on a mobile phone App to cause an illegal user to obtain the access password easily and have worse safety are solved; the effect of improving safety of the visited device is achieved.

The use of computer technology and the internet to quickly locate, view, compare by user-selected values from drop-down lists for key parameters, and select marketable products or other data. The growth of the internet has exceeded the capacity of existing technologies and business methods to allow business and consumer users to sort through a vast sea of data. Drop-down lists displayed within fields of key parameters enables the manipulation of data according to user-selected criteria, in which all conceivable products, whatever their use or country of manufacture, can be located, reviewed, compared, and selected for purchase. The invention uses a hierarchy-based software system that will allow the computer user to search and find required data directly. The user will no longer waste time sifting through search results that are outside the needs of his current search.

The invention relates to an automatic grading system and an automatic grading method based on mass tobacco leaf data. The automatic grading system belongs to a system for carrying out analysis, storage, retrieval and automatic grading on tobacco leaf images by utilizing computer vision, image analysis, machine learning, big data retrieval and artificial intelligence technological algorithms. A mass data retrieval technology is introduced into an automobile tobacco leaf grading system, and corresponding databases and efficient retrieval engines are built, so grading results are more accurate, and the big data concept can become an irresistible trend along with the computer technology development. An artificial intelligence expert system algorithm is introduced, tobacco leaf knowledge in the specific fields is utilized for constructing an expert knowledge base, various complicated tobacco grading problems which can only be solved by human experts are simulated, and the computer intelligence with the same problem solving capability as the experts in the field is reached.

The present invention is applicable to the field of computer technology, and provides a method and device for sending, receiving, and transmitting offline files. The offline file transmission method includes the following steps: the sender client sends the file to be sent to the server; the file After the sending is successful, the sending client sends a file receiving notification message to the receiving client; the receiving client receives the file receiving notification message, and receives the file sent by the sending client from the server. By adopting the file transmission method provided by the embodiment of the present invention, no matter whether the receiving client is online or not, the file transmission can be realized through the instant messaging software, which facilitates the communication and exchange of users.

The present invention is applicable to the field of computer technology, and provides an account management method. The method includes the following steps: recording the login information of a user logging in to an access object, and storing the login information in association with the access object. Objects include websites and network applications, and the login information includes account numbers and passwords; an access object list is established, and the access object list includes access objects associated with login information; when a user's selection instruction for the access object list is detected , call the access object selected by the user and perform the login operation based on the associated login information. The present invention associates the user's login information with the access object and then stores it. When the user specifies a certain access object and needs to perform a login operation, the login operation is performed by reading out the associated login information, without the need for the user to manually input Login information is used to complete the login, thereby improving the efficiency of the user's network activities.

The invention provides a coal mine production three-dimensional visualization information system based on an Internet of things, belonging to the coal mine production safety integration information monitoring research field. According to the system, starting from an application layer of the Internet of things, through computer technology such as system integration, three-dimensional visualization and the like, the three-dimensional visualization information system is constructed. According to the coal mine production three-dimensional visualization information system based on the Internet of things, computer Internet and sensor technology are utilized to connect the real world with the Internet, integration of coal mine production safety and safety risk avoidance six systems and dynamic control of a three-dimensional image are realized, and one-stop management of a coal mine enterprise is realized. The system has the characteristics of clear structure, a friendly interface, and high easiness of operation. A coal mine tunnel, ground detection information, machine running, underground personnel activities can be subjected to three-dimensional displaying conveniently, data is subjected to situation analysis, accident early warning is provided for operation monitoring personnel, and personnel security and production efficiency of a coal mine are raised.

The invention discloses a ceramic processing surface damage detection system, which collects the processing status of the processing surface in the high-efficiency precision grinding process and the characteristic data of the grinding surface topography by the computer, and performs classification processing to obtain the edge contour characteristics of the damage, and identify The macro-quantitative index surface breakage rate, stability, diffusion and damage characteristic parameters that characterize the damage degree of the processed surface are extracted, combined with computer digital image processing technology and algorithms, to complete the detection and evaluation of ceramic surface processing damage. Compared with the existing technology, the system can effectively detect the surface damage type, characteristics, and surface damage degree of advanced ceramics and other related materials, and can be used as an important reference index for comprehensively evaluating the surface quality of ceramic processing. The detection software written in the system is simple and practical, low in cost, more conducive to popularization, reliable and effective, and has greater economic benefits.

The present invention discloses a video live broadcasting-based interaction method and device, and belongs to the computer technology field. The method comprises the steps of receiving a live broadcasting video stream, and displaying a live broadcasting video picture according to the live broadcasting video stream; obtaining the drawing data drawn based on the live broadcasting video picture; sending the drawing data to a server, and using the server to push the subsequent live broadcasting video stream according to the drawing data, wherein an image corresponding to the drawing data is overlapped on the picture corresponding to the subsequent live broadcasting video stream, so that a user can interact with the users watching the same live broadcasting video by a drawing operation, an interaction mode based on the video live broadcasting is expanded, and the user experience is improved.

The preferred computer apparatus and methods use computer technology in a unique way to motivate children to devote more time to educational and cultural enrichment, and encourages them to explore the appropriateness of various educational institutions that they may apply to for admission. In the preferred embodiment, educational material is provided at a child's local computer under control of a central computer system connected to it over a computer network. On completing a particular educational task, the child is rewarded with a certain number of points. Points that the child accumulates are stored centrally, and at least some of the points can be redeemed towards the purchase of goods and services offered through the system of the preferred embodiment by its commercial participants. The purchasing transactions are also administered by the central computer. Parents, preferably, use the system to support their children's purchasing activity financially and to select content available for presentation to the child. Users, both children and parents, can explore entrance requirements to colleges, universities, and other institutions, and school administrators can use the system to identify and locate appropriate applicants. The disclosed systems and methods can be used for purposes unrelated to education of children. For example, the disclosed system also supports limited on-line interaction with various products and services, rewarding users with discounts on those products and services.

The invention discloses a design method for computer-aided bracket-free concealed teeth correcting equipment. The method comprises the following steps: sequentially carrying out tooth and jaw three-dimensional grid model acquisition, tooth segmentation and tooth rehabilitation first; then carrying out virtual gingival grid construction and virtual tooth occlusion construction; carrying out virtual correcting and carrying out motion processing on a tooth model to obtain motion information of the tooth model; carrying out deformation calculation on virtual gingival grids in the tooth model by adopting a Laplacian operator-based freedom deformation algorithm according to the motion information of the tooth model; then carrying out optimized processing and production on the processed tooth model. According to the design method disclosed by the invention, the tooth model is processed by utilizing a computer technology to obtain the correcting equipment, the correcting equipment is produced by using a 3D printing technology, the whole virtual correcting process is realized intuitively, and the working efficiency and the precision of the correcting equipment are improved.

The invention described is a novel business method and system for matching most worthy knowledge surplus with most worthy knowledge deficit. The rate of change of information in this system is defined as knowledge. The rate of change of knowledge in this system is defined as innovation. A method and system of conducting enterprise is specified where knowledge is formatted to behave like a financial instrument embodied in an Innovation Bank and enabled by computer technology. An Innovation Bank is comprised of multiple applications of a Unit Business Method, a Knowledge Inventory, and an open source Problem Solving Environment. Each component is of specific formulation providing for integration of knowledge family elements. Enterprise is conducted through identification of knowledge surplus and deficit, creation, maintenance, accounting, analysis, exchange, and production of knowledge assets by an organization, society, and/or an individual. This business method therefore applies, involves, and advances the technological arts.

The invention is suitable for the field of computer technology, and provides a webpage recognition method, a device and a system. The method comprises acquiring the page information of an inputted webpage; and analyzing the page information by a pre-constructed analyzer in a preset time period, and outputting information representing whether the webpage is a fraud webpage or not. By analyzing the page information through the pre-constructed analyzer and outputting the information representing whether the webpage is the fraud webpage or not, the method provided by the invention solves the problems caused by adopting a webpage matching method to recognize the fraud webpage in the prior art, such as low fraud webpage recognition rate and low recognition efficiency, and can improve the recognition rate and recognition efficiency, thereby enhancing the network security.

The invention provides a detection device and a detection method for quality display. The detection device for quality display comprises a platform which is used for bearing a substrate, an image sampling unit, a control motor which is used for adjusting variation of the platform at different rotation angles and in different axial directions, a light mixing lens module which is used for generating a light mixing light source which is then outputted to the substrate for the image sampling unit to read image data from the substrate, a detection device which is used for judging the grey scale difference in the image data which is acquired by the image sampling unit, and a control device which is used for controlling the detection device, the control motor, the light mixing lens module and the image sampling unit. The detection device and the detection method for quality display can detect the defects of the substrate, improve the detection precision by utilization of the light mixing light source and the platform control motor, and avoid possible errors caused by eye judgment through conversion of images and grey scale signals into electrical signals and data processing in virtue of computer technologies.

The embodiment of the invention provides an image management method, device and system, relates to the field of the computer technology, can reduce the transmission frequency of image data and improves the use ratio of a storage space so as to lower the expenditure of a docker system. The system comprises a warehouse server and N nodes connected with the warehouse server, wherein the store modules of the N nodes form a distributed storage system, and the image data of the images in the N nodes is shared in the distributed storage system; the first node is used for generating a first image, and the first image comprises first metadata and first image data; the first image data is stored in the distributed storage system; an upload request is sent to the warehouse server, wherein the upload request carries the first metadata, and the first node is any one node in the N nodes; and the warehouse server is used for receiving the upload request sent from the first node and storing the first metadata in the upload request.

The invention relates to a contract approval method and especially relates to a contract approval method based on workflow, belonging to the field of computer technology. According to the method, an administrator is allowed to modify the workflow of contract approval in real time according to actual needs, thus a user has different approval authorities in different contract approval processes, and a contract enters into a next approval node automatically according to set workflow. A system sends reminding information to a next user with an approval authority and notifies the user to carry out an approval operation. If approval personnel do not carry out a contract approval operation in a stipulated time, reminding information is sent to the system administrator automatically, and the administrator can modify the workflow of contract approval and authorize other people to carry out approval or cancel the approval node. According to the method, the efficiency is greatly raised, the knowledge management is realized, and the core competitiveness of a company is enhanced.

A system and method for administering adaptive tests employs computer technology for item storage, response storage and scoring, and item selection, but permits examinees to write item responses on paper response sheets. The handwritten responses are electronically captured so as to create electronic data corresponding to the response. The electronic data can thereafter be electronically processed, e.g., stored, sorted, transmitted, displayed, scored, etc.

Embodiments of the present application provide an aesthetics-based image clipping method and apparatus, which belong to the field of computer technology. The method comprises the following steps: obtaining an image to be cut; calculating a saliency map corresponding to the image to be cropped according to a saliency detection algorithm, wherein the saliency map comprises a saliency image corresponding to the image to be cropped, the saliency image being a gray-scale image; determining a saliency boundary box in the saliency map by a saliency region extraction algorithm; determining a salient region corresponding to the salient boundary box in the image to be cropped, wherein the salient region is an image region contained in the salient boundary box in the image to be cropped; determiningan aesthetic region boundary box containing the salient region according to an aesthetic region identification algorithm and the salient region; a target image being obtained by cutting that image tobe cut based on the boundary frame of the aesthetic region. By adopting the invention, the efficiency of determining the cutting frame can be improved.

The application provides a model training method, and belongs to the field of computer technology. The method solves the problem that prediction results are inaccurate when models obtained by trainingof model training methods in the prior art are applied to application of data mining, searching or the like, and includes: obtaining at least one sub-training-sample according to a training sample; respectively training a plurality of machine learning models, which correspond to each sub-training-sample, according to each sub-training-sample, and acquiring prediction values of the corresponding machine learning models on each sub-training-sample; determining a fusion training sample according to the prediction values; and training a target machine learning model according to the fusion training sample. According to the model training method disclosed by the embodiment of the application, the target model is further trained through using prediction results of the models, which are obtainedby previous training, as a feature, and accuracy of a prediction effect of a model obtained by training can be effectively improved.

The invention relates to a method, a device and a storage medium for improving the prediction performance of a depth learning network, belonging to the field of artificial intelligence and computer technology. The method comprises the following steps of: iteratively training a first neural network model by m cycles using a preset training set; verifying the trained neural network model by the preset verification set; determining the corresponding performance indexes based on the scenarios of the neural network mode; selecting multiple neural network models whose performance indexes reach the fusion standard from the neural network models trained by m iterative training; acquiring network parameters of a plurality of selected neural network models, and fusing the network parameters of the plurality of neural network models; assigning the fused network parameters to the second neural network model to obtain a neural network model with the fused network parameters; not only does not increase the training time of the model, but also can improve the network prediction efficiency, and can meet the different needs of the application scenario.

The invention discloses a digital intelligent housing system which comprises a community master server, wherein the community master server is connected with a plurality of household controllers through a community local area network; the household controllers are respectively connected with a visual talk back subsystem, an entrance guard subsystem, a safety-protection alarm subsystem, a household appliance control subsystem and a community service support subsystem; and the community local area network is further communicated with a public telephone switching network and internet. By utilizing the subsystem modularization design, the system is convenient to install, maintain and use; various advanced technologies such as a modern computer technology, a sensing technology, a transmission technology, a network technology and an automatic control technology are adopted for a traditional building structure, so that the efficiency is improved, the loss is reduced, and the cost is saved; a newly-developed internet of things technology, an Ethernet technology, a GPRS (General Packet Radio Service) technology and a ZIGBEE wireless technology are perfectly integrated; and the system integrates functions of building visual talkback, safety precaution, intelligent housing control, environmental control, garden service and cloud computing.

The invention relates to a computer technology, and particularly relates to a shopping cart for electronic self-help shopping, an electronic self-help shopping system, and an electronic self-help shopping method. The shopping cart for electronic self-help shopping according to one embodiment of the invention comprises a tag arranged on the shopping cart and used for representing an identifier corresponding to the shopping cart, a basket or container suitable for containing items, a commodity information generating device arranged near the opening of the basket or container and configured to generate commodity information of an item put in the basket or container and wirelessly transmit the commodity information and the identifier, and a cover capable of covering the opening of the basket or container.

The invention is applicable to the field of computer technology, and provides a data encryption method and a system. The method comprises the following steps: receiving an inputted file which is to be encrypted, and splitting the file to be encrypted into a plurality of first default sized data blocks which are to be encrypted; sequentially receiving the data blocks to be encrypted, and performing segmentation encryption operation on each of the received data blocks which are to be encrypted by using a default secret sharing algorithm to obtain a plurality of encrypted files; selecting a file located at a default location from the plurality of encrypted files after the segmentation encryption operation is performed on the each of the received data blocks which are to be encrypted; determining whether the size of the selected file is greater than a second default, if so determining that the selected file is the inputted file which is to be encrypted and skipping to the step of splitting the file to be encrypted equally into a plurality of data blocks to be encrypted, otherwise determining that the selected file is a decryption key. According to the invention, a plurality of segmentation encryption operations are carried out, a decryption key which is in a default size range is obtained, so that security of data to be encrypted is improved.

Embodiments of this disclosure belong to the field of computer technologies and disclose a method and an apparatus for recognizing a character string in an image. The method includes: according to image data of a pre-stored sample image block including a character string, and based on a convolutional neural network algorithm, constructing an expression of a probability set corresponding to a character string recognition result of the sample image block, the expression of the probability set being constituted by a to-be-determined parameter; based on a training target of maximizing a probability that the character string recognition result determined according to the probability set is the character string included in the pre-stored sample image block, training the plurality of to-be-determined parameters to obtain a training value for each to-be-determined parameter; and when a to-be-recognized target image block is obtained, determining, based on the convolutional neural network algorithm and the training values of the plurality of to-be-determined parameters, a target probability set corresponding to the target image block, and determining, according to the target probability set, a character string recognition result of the target image block. By means of the embodiments of this disclosure, correctness of recognizing a character string can be improved.

The invention relates to a crevice inspection method in bridge quality inspection. According to the crevice inspection method in the bridge quality inspection, a machine visual technology, a modern sensor technology, a datum analyzing and treatment technology and a computer technology are merged into the bridge quality inspection, and continuous and stable crevice images of an inspected bridge areobtained, so that automatic crevice detection for bridge quality is achieved, and safe using of a bridge is ensured. The crevice inspection method comprises the steps that devices are installed, thecrevice images are collected, pre-treatment of image graying, graying level switching and image smoothing to the images is conducted, and crevice targets and image backgrounds are distinguished, so that the crevice is identified, crevice parameters are extracted, a skeleton ridge line is obtained after the crevice is thinned, burrs are removed, the crevice width is calculated, and thus the actuallargest width of the bridge crevice is obtained. According to the crevice inspection method in the bridge quality inspection, the method is scientific, the operation is easy, the inspection effect isgreat, the bridge crevice can be quickly and accurately identified, the automatic inspection level of the bridge crevice is improved, and smoothness and safety of traffic transportation are effectively ensured.

The invention discloses a HSE (Health, Safety and Environment) management system using the computer technology. The HSE management system comprises a database, a HSE supervision and administration component and an emergency command component, wherein the database includes a basic database. The HSE management system of the invention not only ensures the safety and the stability of the system, but also has enough expandability; simultaneously, normalized and standardized HSE management flows are designed, and the system is flexibly customized according to actual conditions of enterprise HSE management, so that the applicability of software is enhanced. The HSE management system of the invention is further featured by convenient operation, steady running, high efficiency, low cost and the like, and can solve the problems of non-uniform standard and non-standard business operation in enterprise HSE management running process. With the HSE management system, the enterprises can be helped to control production running risk, the emergency disposal capability to accident events is improved, and powerful information technical support for preventing accidents, reducing accident loss and realizing maximization of overall benefits of enterprises is provided.

The invention relates to the field of computer technology, and provides an image matching method, a device, a computer device and a storage medium. The image matching method comprises the following steps: a finger vein image to be detected is obtained and grayscale processing is performed to obtain a grayscale image; a fast algorithm is used to extract the feature points of finger vein veins in gray-scale images; a sift algorithm is used to process the feature points, and the eigenvectors of each feature point are obtained; for each feature point, the cosine value between the feature vector ofthe feature point and the feature vector of each legal feature point in the legal image is calculated; if the cosine value is less than the preset cosine threshold value, the feature point of the cosine value is confirmed as the matching point; and if the cosine value is less than the preset cosine threshold value, the feature point is confirmed as the matching point; if the number of matching points is greater than the preset threshold value, it is confirmed that the finger vein image to be detected matches the legal image. The technical proposal of the invention realizes the accurate identification and matching of finger vein patterns, thereby effectively improving the accuracy of finger vein pattern matching.

A rocket solid propellant combustion speed test system relates to test equipment technology field. It enhances the test precision and test efficiency of the solid propellant combustion speed, achieves the management of the test date and data self-disposal to complete the automatization of the test process. It adopts the computer technology based on the existing technology. The system relates to firebox, signal collection equipment, gas way, waterway, temperature adjust equipment and designed system control equipment. The system control equipment relates to computer, control soft and control box made up of valve control drive circuit and ignition circuit. Signal collection equipment gets test signal from the firebox and magnifies it to carry to system control equipment. The computer deals with the data and sends control signal to the valve controlled by the valve control drive circuit and ignition circuit to switch on, interdict or ignite the solid propellant drug bar. It is mainly used for the rocket solid propellant combustion speed test.

The invention provides a network online invoice making method. Based on internet and computer technology, the method provides comprehensive real-time management services for the links of purchase, making, use, inquiry, data application and the like of an invoice of a taxpayer. The method comprises the following steps of: realizing the authentication of a taxpayer identity by using a digital certificate; ensuring the transmission security of invoice data on the internet by using an HTTPS encryption protocol; establishing a security channel between a user and a backstage server; realizing bidirectional data security transmission by encryption technology; generating an invoice security code used for verifying the authenticity and the completeness of invoice face value information by invoice anti-counterfeiting technology. An online invoice making key is a medium for the digital certificate, a face value anti-counterfeiting algorithm and secure storage, and finishes data encryption, data decryption, digital signature, data verification and the like. Therefore, the problems of false invoice, writing false invoice, making an invoice excluding income, filling and making non-standard invoice, declaration data distortion and the like are solved fundamentally.