296results about How to "Implement search" patented technology

The invention discloses a searchable encryption method based on Chinese in a cloud environment. A dynamic searchable encryption scheme is finished based on the features of a PEKS scheme and a Bloom filter; a ciphertext search function is finished in an insecure channel; fuzzy keyword search based on a public key searchable encryption scheme is supported; multi-keyword search of the Chinese is supported; the keywords in a document are dynamically added or deleted; according to the method provided by the invention, an inner product operation is carried out through constructing a search vector and a file vector so as to finish a fuzzy search matching function; the similarity weight of the keywords in the document and the keywords of a search trap door is calculated through importing the vectors; the ciphertext search function and the fuzzy keyword search function are realized; the ciphertext keywords can be securely transmitted on a public channel in adoption of a server and user double-key pair mode; in application of a hash function and a pseudo-random function, through the scheme, the keyword selection attack can be resisted effectively; and the ciphertext is searched under a condition that the cloud server is semi-trusted.

The invention provides a method and a system for searching geographic information. The method can comprise: receiving inquiry request information, segmenting the inquiry request information, obtaining an effective address and key words, inquiring a prearranged database, obtaining spatial geometric information of the effective address, determining spatial regions which need searching according to the spatial geometric information, searching according to the key words in the spatial regions which need searching, and outputting a searching result. The invention organically combines spatial index and full-text searching, and can effectively improve the accuracy and the rich degree of geographic information searching.

The invention discloses a learning management system based on a competency model and knowledge management, which realizes butt joint of enterprise strategies and learning. The technical scheme is as follows: the system comprises a training and learning platform comprising a user login interface; an application program module comprising a trainee information addition module and a database module; apost capability tool module comprising a first database module for storing posts, capability and skills; a first editting module for editing correlation of the posts, the capability and the skills; afirst display module for displaying correlation of the posts, the capability and the skills; a first connecting module for allowing knowledge point operation to enter a knowledge management tool module, wherein, the knowledge management tool module comprises a second database module for storing the knowledge points and courses; a second editing module for editing correlation of the knowledge points and the skills, the knowledge points and the courses; a second display module for displaying correlation of the skills, the knowledge points and the courses and knowledge point contents; and a second connecting module for allowing skill operation to enter the post capability tool module.

The invention relates to an unmanned plane automatic landing system. The system comprises an aerial photography camera, a landmark positioner, unmanned plane driving equipment and a main controller, wherein the aerial photography camera shoots suspected landmark region under an unmanned plane, so as to obtain a suspected landmark image; the landmark positioner performs image processing on the suspected landmark image, so as to obtain the relative height and the relative positioning distance from the unmanned plane to a landmark when the fact that the landmark exists in the suspected landmark image is determined; the main controller is respectively connected with the landmark positioner and the unmanned plane driving equipment, and controls the unmanned plane driving equipment to drive the unmanned plane to be landed on the landmark according to the relative height and the relative positioning distance. The unmanned plane automatic landing system can accomplish automatic and accurate landing of the unmanned plane in various different landforms, and improves the intelligence level of the unmanned plane.

Provided is a light projection device comprising: a moving projection unit capable of projecting light for illumination or information display and moving the projection position; a position detection unit for detecting the position of a search target article instructed by an instructor; a field detection unit for detecting the field of view of the instructor; and a control unit for controlling the moving projection unit on the basis of the position of the search target article which is detected by the position detection unit and the field of view of the instructor which is detected by the field detection unit so as to illuminate the search target article directly or to project the guide information for guiding the instructor to the search target article into the field of view of the instructor.

The invention relates to a grid-based multi-user fuzzy searchable encryption method in secure multimedia cloud storage. The semantic information is used to realize the privacy semantic search of encrypted data. The user-selected search keywords do not need to be exactly the same as the keywords in the outsourced encrypted multimedia data. in view of the shortcomings of the existing scheme that only supports single-user application, the scheme introduces the searchable broadcast encryption method; encrypted multimedia files can be shared by a group of users without sharing their own private keys; each authorized user can use his / her unique private key to generate his / her own keyword trap door; and the user can also upload the encrypted multimedia files as a data sender using the group public key. The scheme introduces the concept of post-quantum security and designs a searchable broadcast encryption scheme that supports semantic keyword search, and the scheme is constructed by means of grid-based cryptography and grid-based proxy methods. Based on the difficulty of LWE (error learning) problem, the security of resisting quantum attack can be realized.

The invention discloses a method and a system of moving target tracking based on a video. The method of moving target tracking comprises the following steps of: detecting a moving target, and fragmenting the moving target in a video image; establishing a color probability distribution map for the moving target; calculating a barycenter of a search window, and adjusting the size of the search window according to window zeroth moment; predicating the position of the search window in the next frame of image through a Kalman filter; and carrying out barycenter matching in an estimation range to track the target. According to the method and the system for moving target tracking based on the video, the problem of moving target tracking at complicated background can be well solved, and the method and the system are good in real-time performance and robustness.

The utility model provides a lightweight personalized search engine and a search method of the search engine, which comprises an information grasp module, an information retrieval module and a user personality analysis module though connection with each other; wherein, the information grasp module comprises a grasp program and an index program; the Internet information resource and the Web database can be accessed into the information grasp module; the user personality analysis module is connected with the output of the information grasp module; the record of user interest and keywords query are input into the information retrieval module which is combined with the user personality analysis module to provide personalized retrieval service. The utility model has a server without increased memory cost, making full use of the resources of the client to fulfill personalized search. The utility model provides a personalized search engine proposal to satisfy the interest of users according to different needs of the users by the combination of the memory of the client and the user behavior tracking engine of the server.

The invention provides a structure searching method and device of a depth neural network, which relates to the technical field of artificial intelligence. The method comprises the following steps: obtaining a computing unit structure of each layer in each module serially serially connected in a depth neural network in a preset search space; the preset connection mode is adopted in each module to connect each computing unit to obtain the information flow in each module. According to the connection of the module and the computing unit in each module, the initial neural network is obtained. A sparse scaling operator is set up for the information flow in the initial neural network, in which the sparse scaling operator is used to scale the information flow. The preset training sample data is used to train the weights of the initial neural network and the sparse scaling operator of the information flow, and the intermediate neural network is obtained. The sparse scaling operator in the intermediate neural network is deleted to obtain the search result neural network in the search space. The invention can save the searching time of the network structure.

The invention discloses a three-dimensional quick capturing method for a hopping spreading code phase and a carrier wave Doppler. The method includes: firstly, obtaining a local frequency-hopping carrier wave through a frequency synthesizer by using a local frequency-hopping pattern, and performing de-hopping and low-pass filtering to received signals; then, performing figure automatic gain control to data acquired after low-pass filtering, and extracting the data according to a corresponding ratio, and reducing operation amount of subsequent processing; and finally, producing a local direct sequence codon to de-spread the extracted data, and then performing a first accumulation, and performing a second accumulation after accumulated data frequency-hopping phase rotates, performing FFT (fast fourier transform) to the accumulated data, and finding a maximum peak by comparison. A local hopping spreading code phase and a frequency value corresponding to the maximum peak are a hopping spreading code phase and a carrier wave Doppler of the received signals. By the aid of the method, quick and simultaneous capturing of the hopping and spreading code phase and the carrier wave Doppler of a DS / FH (direct sequence / frequency hopping) mixing spread spectrum system under a strong interference condition is realized, and the method is low in realization complexity degree and has a fine anti-interference performance.

The invention is concerned with the point frequency scanning method of mobile terminal frequency segment to perform under interference environment of all sorts. It applies the low connection filtering method to eliminate the disturbance of the signal incept power volume by noise and the channel fading, directs the adjustment of the point frequency AGC and the frequency power measurement with different reference guide line separately, and conducts fitting and smoothing treatment to all the frequency section measuring volume data, and finally, generates the candidate frequency list by applying the method of power section peak value selection.

The invention relates to a position identification and guide method based on bluetooth and a two-dimension code. The method comprises a bluetooth 4.0 terminal, a user hand-held terminal and a server end, wherein the bluetooth 4.0 terminal, the user hand-held terminal and the server end are connected through wireless communications, and the user hand-held terminal is provided with a bluetooth 4.0 module. The method includes the following steps: step one, conducting regional division and enabling the bluetooth 4.0 terminal to be mounted in a region; step two, conducting subregion division; step three, appointing a destination; step four, appointing an original place; step five, guiding a path from the original place to the destination; and step six, guiding the position of a subregion of the destination. By means of the position identification and guide method based on the bluetooth and the two-dimension code, position guiding can be achieved swiftly.

The invention discloses an acquisition method, an acquisition system and an acquisition device for information of a contact person. The method comprises the steps of acquiring a name of the contact person input by a user through a dialing interface and inquiring that whether basic information of the contact person is stored in a local data base according to the name of the contact person; if yes, acquiring the basic information of the contact person stored locally; if not, acquiring basic information of the contact person corresponding to the name of the contact person from a data base server in the network and storing the acquired basic information of the contact person to the local data base; and establishing the communication connection through the acquired basic information of the contact person and the contact person. According to the method, a large scope of search for the contact person can be realized through a dialing program, thereby simplifying the search process and saving the system resources.

The invention discloses a method and device for finding adjacent region devices and relates to the technical field of wireless communication. The problem that in the prior art, a terminal can not search for other terminals with the same running application programs within a local range or a close region if being independent of an LBS server is solved. The method includes the steps that application program identification is obtained; broadcast frames carrying the application program identification are broadcast to a receiving end; messages carrying target application program identification sent by candidate receiving ends are received, and the target application program identification is selected from the application program identification by the candidate receiving ends; a target receiving end is determined from the candidate receiving ends so as to establish target application program connection with the target receiving end. The embodiment of the method and device is mainly applied to the process of short distance wireless communication.

The present invention provides a music similarity processing method which comprises the following steps: after inputting first characteristic information of multimedia information of first music or the multimedia information of first music, extracting first characteristic information from the multimedia information of first piece of music; decomposing the first characteristic information to a plurality of information segments which start from a random starting point and have a certain length; after inputting the second characteristic information of multimedia information of second piece of music or inputting the multimedia information of second piece of music, extracting the second characteristic information from the multimedia information of second piece of music; calculating the information similarity data of a random segment of a plurality of information segments and a random segment in the second characteristic information; selecting a maximum value of similarity from the similarity data; and determining whether the maximum value of similarity exceeds the preset threshold. If the preset threshold is exceeded, high similarity between the first piece of music and the second piece of music is determined, and otherwise low similarity between the first piece of music and the second piece of music is determined.

The invention discloses a searchable encryption method and equipment thereof. According to the method, a sender obtains identity of a searcher or identity of a group to which the searcher belongs and system parameters of a key management center; the sender encrypts a keyword according to the identity of the searcher or the identity of the group to which the searcher belongs and the system parameters and uploads the encrypted keyword ciphertext to a storage server; simultaneously, the searcher obtains a query key from the key management center according to the identity of the searcher or the identity of the group to which the searcher belongs, a query token is generated according to the keyword and the obtained enquiry key, the encrypted keyword ciphertext is queried from the storage server through the query token, and data returned back from the storage server is received. By the above method, a searchable encryption technology can be realized without the support of expensive public key infrastructure and without downloading of public keys by the sender.

The provided search method for IM user in a LAN comprises: the IM user sends directly broadcast detecting information contained self receive address toward other IM users, other user returns response information contained self information. This invention frees from IM center server, simplifies search process, and benefit to add member.

The invention provides a method for searching subjects of intelligent equipment. The method comprises the following steps: opening a front camera and a rear camera of the intelligent equipment, and displaying the front camera and the rear camera in the display screen of the intelligent equipment; determining the current watching position on the screen of a user according to images, including user eyeball information, acquired by the front camera; and focusing and shooting pictures including subject content according to the watching position, and identifying and searching according to the subject content of the pictures. According to the method and device, subjects can be focused and searched quickly by means of observation of user eyes, the convenience of user operation is greatly simplified, and the efficiency of subject searching can be improved.

The invention provides a high reliable digital content service method applicable to multiclass terminal equipment. The technology of the method is as follows: based on a reliable computer technology, a unique parameter of user terminal equipment is acquired to generate a user terminal equipment identification, then the user terminal equipment identification is combined with user identity information to generate a reliable root, and the security verification of the operational environment of application terminal components is realized on the basis of the reliable root; and by digital content application terminal components, cross-platform digital content access management and control can be realized based on a WEB server, thereby protecting the digital content to be used legally and ensuring that the rights and benefits of the owner of the digital content source are not infringed.

The invention relates to a television set remote control system and method based on a WeChat app at a mobile terminal. The method includes the following steps: 1. A mobile terminal user scanning a 2D code at a television set terminal by using WeChat in order to bond the mobile terminal and a television set terminal, saving the bonding information as a bonding relation table of a database of a backend server; 2. A mobile terminal user inputting information and transmitting the information to the backend server; 3. The backend server verifying the presence of the bonding relation through the bonding relation table of the database; 4. If the bonding relation exists, the backend server converts the information to a command and saves the command to the backend server; and 5. The television set terminal acquiring the command from the backend server and implementing the operation. Compared with prior art, according to the invention, the method and the system have the advantages of long remote control distance, control at any time and any places, and improved user experience.

The invention discloses an attribute-based online / offline keyword search method and its cloud computing application system in a mobile cloud environment, comprising the following steps: system initialization, TA generates a public key and a master key; TA generates an intermediate key offline for a new user After the new user completes the registration, TA generates its attribute private key; TA generates an outsourced key for the new user; the data master encrypts the information offline on the mobile device side to obtain the intermediate ciphertext;) the data master encrypts the intermediate ciphertext online to obtain the complete ciphertext The data master generates an index set, and the user uses its own attributes to generate relevant trapdoors, and sends them to the cloud server together; the cloud server receives the encrypted index and trapdoor, and searches for keywords; the user decrypts to obtain the target information. The present invention realizes searchable encryption based on an attribute encryption mechanism and online / offline technology, protects user privacy, and greatly reduces user expenses.

Disclosed are a sinking-floating control device and a multi-working-condition sea cucumber search fishing device capable of sinking and floating. The multi-working-condition sea cucumber search fishing device capable of sinking and floating comprises open type buoys, a high pressure gas cylinder, control valves, a chassis framework, electric wheels, a driven wheel, a steering vertical shaft, a tail vane, a propeller, motors, a mechanical arm, a suction tube, a camera, warehouse and an umbilical cable. The top of each buoy is provided with the normally closed type control valve, and the bottom of the buoy is provided with a normally open opening; the high pressure gas cylinder is connected with a tee joint, one opening of the tee joint is normally closed, the other opening of the tee joint is firstly connected with the normally closed type control valve and then is connected with a high pressure air duct continuously; the other end of the high pressure air duct is communicated with the corresponding buoy. Every motor and the camera are all connected with the umbilical cable through wires. The suction tube is attached to the mechanical arm, and the front end of the mechanical arm is provided with the camera and a clamp. The multi-working-condition sea cucumber search fishing device capable of sinking and floating is multifunctional and has strong environmental suitability, can achieve the floating movement, searching and fishing by sinking to the bottom, and sea floor travelling of the fishing device; can adapt to multiple seabed environments of mud, sand, reef, rock and the like, and can suck and catching sea floor objects such as sea cucumbers quickly, stably and accurately both in still water and running water.

The invention discloses a word-segmentation organizing method and a clustering method for a ciphertext search. The word-segmentation organizing method and clustering method solves an indexing and searching problems of a private document of a user on a public server; word segmentation, feature extraction and summarization are carried out to the private document by a client end, and encryption is carried to segmented words, the document and a summary, so that the privacy of the private document of the user on the server is ensured; and the encrypted document is stored and clustered on a server end, an index is built for convenience in searching, so that searching requests of the user are responded and secondary clustering of the ciphertext is achieved. The word-segmentation organizing method and the clustering method has the characteristics of segmenting the words in the document based on the client end, storing and clustering based on the ciphertext and searching and clustering based on the ciphertext.

The invention relates to a mobile communication terminal, in particular to a mobile communication terminal which manages and searches image files in the form of photo albums by distinguishing folders according to groups and characters in the phone book and saving the above files. The present invention includes a key input unit provided with more than one button so that phonebook information can be input and a folder for saving video files can be selected; it is used to save data input through the user interface program and to register to the above-mentioned phonebook. Individual or group The memory for storing the above-mentioned image files in the folder; the control part for controlling the overall matter to realize the call function and additional functions, and displaying the saved image files in groups according to the above-mentioned individual or group folders when selecting the browsing album menu; according to the above-mentioned control part The control displays the display section of the video files saved in groups. The present invention makes it easier to manage hundreds of photos, video files, and search for photos in a manner similar to browsing someone's photo album.

Provided are an array type channel, a GNSS receiver and a signal processing method. The GNSS receiver comprises a control unit, at least one array type channel, a code phase discriminator, a code loop filter, a carrier frequency discriminator, a carrier loop filter and a bit synchronizer. The code phase discriminator, the code loop filter, the carrier frequency discriminator, the carrier loop filter and the bit synchronizer respectively correspond to the array type channels which comprise a carrier digital-controlled oscillator, a plurality of digital down converter, a spread spectrum code digital-controlled oscillator, a spread spectrum code generator, a spread spectrum code shifting register set, a plurality of correlator sets, a plurality of incoherent accumulator sets and a preprocessing unit. According to the technical scheme, the GNSS receiver is simple in structure, capturing and tracking resource multiplexing can be achieved through the array type channels, the system operation state is simplified, and ideal capturing and tracking performance is achieved.

The invention discloses a voice awakening method through gesture recognition, a smart TV and a storage medium. The method comprises the following steps: arranging a camera for acquiring a gesture operation on the smart TV in advance, and enabling a predetermined operation gesture acquired by the camera to correspond to an operation instruction of the smart TV, and enabling the predetermined operation gesture to correspond to an operation instruction for calling voice recognition; monitoring image information through the camera of the smart TV, and calling a voice recognition module when the camera captures the predetermined operation gesture corresponding to the n operation instruction for calling voice recognition; controlling to turn on a microphone through the voice recognition module so as to acquire a corresponding voice command, and controlling the smart TV to execute the corresponding operation. Through the method disclosed by the invention, the technical short board of the voice awakening can be effectively solved to provide convenience for the user, and the technical realization cost can be effectively lowered to provide convenience for the user.

The invention provides an FM and PM signal carrier capturing method applicable to a random modulation degree. The method comprises following steps of firstly, carrying out down-sampling filtering to input digital baseband signals, thus obtaining down-sampled digital baseband signals; then respectively mixing the digital baseband signals with multiple groups of set local carriers, thus realizing frequency spectrum shift of the baseband signals; carrying out FFT conversion to each frequency spectrum shift branch signal; calculating the power of each spectrum line; searching spectrum line peak values region by region; storing searching results; after a plurality of times of searching is finished, carrying out frequency point verification; eliminating noise interferences, thus obtaining true signal spectrum lines; finally carrying out symmetry judgment to the obtained true signal spectrum lines, thus determining a capturing result. According to the method, the frequency resolution is improved through the frequency spectrum shift; the peak values are searched region by region in the whole capturing range according to the frequencies; the true signals are counted through many times of capturing; the weak signals can be searched in a low signal to noise ratio environment; and the method is applicable to FM and PM signal carrier capturing of random modulation degree.

The invention embodiment discloses a method, a device and a system for searching TV program based on a headend server, belonging to the field of digital television technology and making TV programs searchable, thus shortening the time of searching TV program for users and improving the searching efficiency. The searching method based on headend server comprises that: the headend server receives information on searching request input by the users of client STB (Set Top Box); the headend server searches a program database according to the information on searching request, with the content of the information on searching request including searching keywords and searching range; and the headend server sends the searching result to the client STB.

A cleaning robot is composed of a self-propelling system, a rubbish recognizing and locating system, a cleaning system and a dumping system which differently function and coordinate to each other. The self-propelling system stays operating during working of the cleaning robot. When rubbish is found by a camera, the rubbish recognizing and locating system of the cleaning robot begins working, and the cleaning system of the cleaning robot begins working after locating. After cleaning, the dumping system starts functioning until the whole cleaning process is completed. The cleaning robot has the advantages of automatic searching, recognizing, locating and cleaning functions for rubbish and can normally operate in high- or low-temperature outdoor environment.