1313results about How to "Achieve acquisition" patented technology

The invention discloses a method for dynamic acquisition and transmission of wireless data. In a data acquisition process of the method, the time interval for data acquisition is dynamically adjusted, according to the change threshold of data acquisition. In a data storing process, the time interval and opportunity for data storing is dynamically adjusted according to the change threshold of data acquisition. In a data sending process, the opportunity for data sending is dynamically adjusted according to the acquisition value alarming threshold and changing rate alarming threshold of data acquisition. Dynamically increasing or reducing data sampling frequency without increasing power consumption of wireless equipment is realized based on data abnormity degree. Alarm information is timely sent by determination of dynamic data acquisition abnormity, so that managers can maintain equipment as early as possible. Wireless data bulk sent is reduced, and the power consumption of wireless monitoring equipment is reduced. The process state information of entire detected equipment can be monitored without increasing the total transmission data bulk.

The invention discloses a multi-functional intelligent well cover system. The multi-functional intelligent well cover system is characterized by comprising a well cover, an intelligent integration device for performing intelligent processing on the well cover, an information acquisition device for obtaining relevant information of the well cover, and an auxiliary service device for providing application service to the intelligent integration device and the information acquisition device. The multi-functional intelligent well cover system can perform positioning, unique identification, alarm and monitoring on the well cover.

A servo binocular visual transducer for welding robot is featured as fixing CCD camera, pneumatic system, dimming and filtering system on flat support being fixed with external spindle; placing two bearings between two hollow spindles to let external one rotate around the internal one; connecting synchronous belt transmission system to external spindle with end cover; fixing internal hollow spindle and servo motor to drive CCD camera to rotate at controllable angle around welding gun.

A hyperspectral image sparse unmixing method based on random projection includes the following four main steps: (1) data are read by a computer under the environment of MATLAB R2008b; (2) the hyperspectral image data and the hyperspectral library data are randomly projected by the computer; (3) a target function for sparse unmixing is constructed, and the split Bregman algorithm is used for optimizing the target function and working out an extremum until reaching convergence and stopping conditions; (4) an appropriate threshold value is set to process a abundance fraction matrix, so that a final abundance fraction graph and end members can be obtained. The hyperspectral image sparse unmixing method based on random projection utilizes a hyperspectral database to choose the end members, and overcomes the defect that the end members worked out by the conventional algorithm cannot strictly correspond to the spectra of pure materials in the standard hyperspectral database; and moreover, the hyperspectral image sparse unmixing method based on random projection uses the random projection technology to carry out dimensionality reduction on raw data, thus achieving the effects of saving memories and reducing the calculation load. The hyperspectral image sparse unmixing method based on random projection realizes rapid quantitative analysis on hyperspectral images, and has practical value and a broad application prospect in the field of hyperspectral remote sensing image analysis.

The invention discloses a method for using quantum keys to improve safety of electric power information transmission in a power system WiMAX wireless communication network. According to the method for using the quantum keys to improve safety of electric power information transmission in the power system WiMAX wireless communication network, due to the fact that the quantum key distribution technology is applied to the power system WiMAX wireless communication network, safety of information transmission of a power system is improved; the scheme that a quantum key distribution network and the power system WiMAX wireless communication network are combined is adopted, the unconditionally safe quantum keys are applied to the power system WiMAX wireless communication network, pre-encryption is carried out on data needing to be transmitted by using the quantum keys on the premise that the IEEE802.16 protocol in the WiMAX technology is not modified, another encryption is carried out on a ciphertext generated through pre-encryption by using the encryption technology in the WiMAX wireless network, the effect of double protection on information transmission in the electric power system is achieved, convenience and rapidness are achieved, and safety of wireless communication of the electric power system is improved to the maximum extent.

The invention discloses a method for intercepting operating of suspicious programs. The method includes the steps of: (1) under the condition that a protected computer has no Trojan horse viruses and when a system is operated for the first time, recording all PE (Portable Execute) file information existing in the computer and generating a white list, (2) intercepting requests of memory application in file loading and screening out the PE files in a operating system nucleus, (3) comparing with a black list and the white list to judge whether the file is suspicious. The method for intercepting operating of suspicious programs has the advantages that the method effectively intercepts the enablement of suspicious programs and obtains Trojan horse virus samples by intercepting all the PE files loaded by an operating system and comparing with the white list to judge the PE files, intercepts known Trojan horse viruses by making the black list, provides detailed log reports to analyze and monitor running status of all processes in a current system so that the safety of the system is greatly improved, and overcomes the great defect that existing antivirus software can not intercept unknown Trojan horse viruses by using feature contrasting mode.

The invention discloses a housing rental method and system based on a mobile terminal and 3D panoramic image browsing. The method comprises the following steps of: the mobile terminal receiving a browsing request, issued by a user by tapping, on a housing resource, downloading housing resource information corresponding to the housing resource from a server, and displaying the housing resource information; using a 3D play technology to play a 3D panoramic image corresponding to the housing resource, and making a hotspot location in the 3D panoramic image be presented in a tappable state; and adjusting a browsing angle of the panoramic image according to turning and moving operations performed by the user, and displaying hotspot information corresponding to the hotspot location according to a click operation performed by the user on the hotspot location. According to the housing rental method and system based on a mobile terminal and 3D panoramic image browsing, the function of the mobile terminal in browsing a housing resource in a 3D panoramic manner is implemented, high definition of a key areas of the housing resource is realized, housing resource browsing is user friendly, intellectualized and diversified; and more user requests are satisfied.

The invention discloses a Big Dipper autonomous navigation method based on a Big Dipper short message and a 4G communication mode. Namely, a Big Dipper type airborne device acquires information of the current position, speed, time and the like of an airplane in real time and issues the information in the form of an ADS-C message according to the requirement of a ground system. Meanwhile, a ground low altitude flight operation monitoring system receives airspace situation information from other systems, and after coding and processing the situation of the other airplanes around a target airplane, the ground low altitude flight operation monitoring system sends the situation to the Big Dipper type airborne device in the form of the short message through a Big Dipper directing type user machine or the 4G communication device. According to the Big Dipper autonomous navigation method, the positioning information sent by the Big Dipper type airborne device can be received, monitoring can be achieved at a low altitude, flying data of the position, height, speed and the like in the flying process of a navigation aircraft can be recorded in real time through an airborne data recording module, emergency directing communication can be conducted on the aircraft loaded with the Big Dipper type airborne device through a Big Dipper short message channel, and low altitude navigation seamless coverage can be achieved.

The scheme of the invention discloses a vehicle assistance driving system based on the infrared thermal imaging and millimeter wave radar technology. The main functions include pedestrian and vehicledetection, image and sound fusion and collision early warning in driving of the vehicle. The early warning system uses the following technical characteristics: the infrared camera and the millimeter wave radar specialized for vehicle-mounted assistance driving, the data acquired by the radar, such as the distance, the direction and the speed and the images acquired by the infrared camera are fusedfor screening and determining the pedestrians or the vehicles, the pedestrian or vehicle characteristics are extracted through the algorithm, finally the result is displayed on the visual interface and multidimensional early warning information including images, numbers and sound is provided.

The invention relates to a time flight imaging spectrum system based on compressed sensing and coding transformation. The time flight imaging spectrum system comprises a pulse laser unit, a telescope unit, an imaging lens, a first beam expanding collimating lens, a first digital micro-mirror, a camera, a concave surface collimating mirror, a spectro-grating, a first convergent lens, a second digital micro-mirror, a second convergent lens, a light combining grating, a third convergent lens, a point detector, a Hadamard inverse transformation module, a compression calculation relevance module and a flight time relevance module. The pulse laser unit comprises an active pulse light source, a second beam expanding collimating lens and a second mirror. The telescope unit comprises a concave surface mirror, a convex surface mirror and a first mirror. The flight time relevance module comprises a synchronous control unit and a timescale converter.

The invention provides an unmanned aerial vehicle tilt photography fine grid earthwork measurement method. The aerial survey data are obtained by aerial survey of the unmanned aerial vehicle and the data are integrated and processed so as to obtain a three-dimensional model of a real scene; the model restoration technology is applied to eliminate the interference objects such as trees and houses in the real scene three-dimensional model, the elevation around the pores left after the interference objects are deleted is applied to fit the curved surface, and the pores are filled with the curved surface so that the restored real scene three-dimensional model is finally obtained, and the real surface point cloud is generated based on the restored real scene three-dimensional model; and an irregular triangular network model is constructed according to the point cloud and then a regular grid model is further constructed, and the earthwork calculation value is obtained through a fine grid earthwork measurement formula based on the regular grid model. The accurate calculation of earthwork filling and excavation can be realized based on the fine grid, and the method has the advantages of high accuracy, safe operation and saving manpower and time cost.

The invention discloses a method and a device for converting a plane video to a three-dimensional video, belonging to the technical field of computer multimedia. The method comprises the following steps: C1: reading a current frame; C2: if the read current frame is a key frame, cutting colors of an image of the current frame, and assigning a depth value of the cut image to obtain a depth map of the current frame; and if the read current frame is a non-key frame, obtaining the depth map of the current frame; C 3: obtaining a frame of the three-dimensional video on the basis of the rendering of the depth map according to the obtained depth map of the current frame; C4: continuously reading a next frame of the current frame, and returning to perform the steps C2-C3 till the three-dimensional video is obtained. The invention can fully and automatically obtain the depth map corresponding to each frame image of one video sequence and better complete a task of converting the plane video into the three-dimensional video.

The disclosed method for controlling terminal reading system message comprises: when the system message changes, the NS sends indication including the changed scheduling message to the activated terminal; the terminal receives the indication message to read the latest system message. This invention enables the UE activated by OFDM technology to obtain system message in a LTE system normally, and improves system access performance.

The invention relates to an underwater section detection buoyage. The buoyage comprises a cable puller hinging ring, a temperature, salinity and pressure measuring sensor, a sensor protection cover, a buoyancy cabin, an underwater control unit, an inner oil bag, a direct current motor, an electric rotating valve, a check valve, a hydraulic motor, a rear end cover, an outer oil bag, an oil bag protection cover and a buoy watertight connector. The underwater section detection buoyage can be used for buoyancy conversion and lift control for performing temperature measurement, salinity measurement and depth measurement on sea water. The underwater section detection buoyage is connected with an ice-based buoyage by a high strength pulling cable device with seawater corrosion-resistant vulcanized joints for forming a shallow water type pull-type temperature, salinity and depth monitoring system in the Arctic Ocean. The underwater section detection buoyage is used for performing underwater temperature, salinity and depth section measurement with the measuring depth being 0-120m under the ice layer, so that the blank of being short of an observation method for 120m or shallower water in high seas internationally is filled, and the hydrological and meteorological simultaneous observation in the same region is realized; a lithium battery with ultra-large capacity is adopted for supplying power, so that the service life of the system is prolonged, and the underwater section detection buoyage can be applied to the field related to research in polar regions internationally.

The invention discloses a quantization evaluating device and method for dyskinesia symptoms of Parkinson and related extrapyramidal diseases. The device comprises an S-shaped gait channel, a finger inertia element node, a body inertia element node, a high-speed image collection unit, a central computer, an inertia element synchronization box, a synchronization state lamp, a wireless router, a switch and a power supply. The method comprises the steps of starting initialization of devices and starting the devices, adding basic information of testing personnel or searching existing testing personnel, selecting a collection mode, synchronizing a data collection unit module, collecting, displaying and storing data under assigned actions in real time, analyzing the data, and storing and printing quantization evaluating results. According to the quantization evaluating device and method for the dyskinesia symptoms of the Parkinson and related extrapyramidal diseases, the subjective evaluating method depending on the experiment of clinicians is thoroughly changed, and the device and method have improved theoretical value and realistic guidance significance on treatment of patients with dyskinesia, making of rehabilitation schemes and judgment of the curative effect and a prognosis.

The invention discloses a multi-energy-source hybrid power system for a boat. The multi-energy-source hybrid power system comprises a main motive power system and an auxiliary motive power system, wherein the main motive power system is connected with a motive power load through a circuit, multi-energy-source motive power monitoring systems of the main motive power system and the auxiliary motive power system are connected through a circuit, and the work of the main motive power system and the auxiliary motive power system is monitored and controlled. In the boat navigation process, the output power of the main motive power system is higher than the power required by the boat motive power load, and the main motive power system stores the rest power into the auxiliary motive power system. When the output power of the main motive power system is lower than the power required by the boat motive power load, the main motive power system and the auxiliary motive power system simultaneously provide pushing power for the motive power load. The charging and discharging of a motive power battery realize the peak cutting and valley filling effects on a diesel and electric motor group. The peak power required by an electric network is simultaneously provided by the diesel and electric motor group, a solar battery, a wind power generator and the motive power battery, and the volume and the size of a diesel engine are reduced.

The invention discloses an urban greening quantity digital map manufacturing and displaying method. The urban greening quantity digital map manufacturing and displaying method comprises the following steps: importing urban basic map data into a geographic information system to form an urban three-dimensional vector information module; separating spectral information pixels related to greening quantity in a satellite remote sensing image, acquiring characteristic data and plane quantity of different tree species, simulating three-dimensional quantity through the plane quantity to calculate the greening quantity, storing greening quantity pixel information in an image form, storing a greening quantity result in a data table form, and forming an urban greening quantity database; connecting the urban three-dimensional vector information module and the urban greening quantity database, establishing map layers with different attributes, superposing database information, and exporting an urban greening quantity digital map. According to the urban greening quantity digital map manufacturing and displaying method, the greening quantity data and the urban map are superposed in a digital map system, and visual dynamic inquiry and display of the greening quantity data is realized. The urban greening quantity digital map manufacturing and displaying method can be used in the fields of urban planning, landscape gardens and building designs, and is a practical method for aided design and urban construction decision-making management.

The invention discloses a semantic segmentation method based on a pyramid cavity convolution network, and the method comprises the following steps: obtaining a medical image data set containing a realsegmentation result, and carrying out the preprocessing operation of data enhancement and the like of the data set; processing the preprocessed image through a residual recursion convolution module and a pooling layer to obtain shallow image features; obtaining deep image features through a network in which a pyramid pooling module and a cavity convolution module are connected in parallel; decoding the features of the deep image through a deconvolution layer, jump connection and residual recursion convolution module; inputting a decoding result into a softmax layer to obtain a category to which each pixel belongs; training a pyramid cavity convolution network, establishing a loss function, and determining network parameters through training samples; and inputting a test image into the trained pyramid cavity convolutional network to obtain a semantic segmentation result of the image. According to the method, multi-scale semantic information and detail information can be effectively extracted by adopting a hole convolution and pyramid pooling method, and the segmentation effect of the network is improved.

The invention discloses a three-dimensional visual information acquisition method based on two-dimensional and three-dimensional video camera fusion. According to the method, a two-dimensional video camera and a three-dimensional video camera form a composite video camera to respectively image a scene synchronously; by establishing a matched mapping model of three-dimensional video camera depth images and two-dimensional video camera images, matched mapping points and mapping areas of the pixels of the three-dimensional camera video depth images in the two-dimensional video camera images are obtained; the mapping areas in the two-dimensional video camera images are processed through triangular decomposition, and a depth curved surface interpolation function of a triangulation area is established on the basis of depth information of adjacent mapping points; depth information of image pixels in the triangulation area is calculated through interpolation, and then depth images corresponding to high-resolution two-dimensional video camera images can be acquired. According to the method, the two-dimensional video camera image information and the three-dimensional video camera depth information are kept to the maximum degree, and the method has the advantages of being high in precision, little in information loss and the like and can be widely applied to the fields of industrial visual measurement, visual assembly, robot visual navigation and the like.

The invention discloses a vehicle positioning and anti-collision pre-warning system based on ZigBee and GPS (global positioning system). The vehicle positioning and anti-collision pre-warning system is characterized by comprising an information acquisition and communication unit, a main controller unit and an information display and audible and visual alarm unit. The information acquisition and communication unit acquires vehicle information of a vehicle and a wireless communication signal including vehicle information of vehicles in front of the vehicle through a GPS module, an electronic compass module and a ZigBee communication module and transmits a wireless communication signal including vehicle information of the vehicle to vehicles behind. The main controller unit calculates distance between the vehicle and vehicles in front by utilizing the vehicle information and strength of the wireless communication signal, and judges danger grade by utilizing vehicle speed, vehicle moving direction information and the distance. The information display and audible and visual alarm unit displays and alarms the danger grade. The vehicle positioning and anti-collision pre-warning system is used for acquiring adjacent vehicle distance and vehicle speed information, and accordingly a driver can be warned in advance to keep safe driving distance.

The invention relates to an emergency logistics management system and method for obtaining goods state information. The system comprises an emergency logistics management center platform, goods with RFID tags and a freight vehicle. The goods are located on the freight vehicle, the freight vehicle is provided with at least three frequency band detection modules, a relay module, a GPS positioning module, a Beidou navigation positioning module, a WIFI module, an LTE communication module, an RFID reader, a storage and a central processing module, the goods are provided with micro-processing chips, pressure sensors and infrared sensors, and the emergency logistics management center platform is connected with the central processing module. The frequency band detection modules are used for detecting current communication frequency bands, and the LTE communication module is adjusted to perform communication on an idle frequency band , so that cooperative positioning data of the GPS positioning module, the Beidou navigation positioning module and the WIFI module or target goods mark states are sent to the emergency logistics management center platform to be managed, and emergency logistics management work in emergency communication environments is achieved.

The invention relates to a shallow towed CTD (conductivity-temperature-depth) monitoring system for the Arctic Ocean. The shallow towed CTD monitoring system comprises an iced buoy device, an underwater profile detecting buoy device and a high-strength towed cable device, wherein the iced buoy device is applied to meteorological observation and control, satellite communication and power supply; the underwater profile detecting buoy device is used for carrying out buoyancy conversion and lifting control, and measuring the temperature, the salinity and the depth of seawater; and the high-strength towed cable device is used for connecting the iced buoy device and the underwater profile detecting buoy device, and providing a data signal wire, a high-strength towed cable and a seawater corrosion resistant vulcanized joint. According to the shallow towed CTD monitoring system for the Arctic Ocean, underwater CTD profile measurement can be carried out, the measurement depth is 0-120m below an ice layer, the blank of an international shallow observation method for 120m far from the sea is filled up, and synchronous hydrological and meteorological observation in the same region is achieved; an ultra-large capacity lithium battery power supply system is adopted, so that the service life of the system is prolonged; and the shallow towed CTD monitoring system has great popularization and application value, and can be popularized and applied to international related fields of polar region research.

The invention discloses a face identification equipment and method. The face identification equipment is characterized in that a first projecting device is used for projecting a discrete light beam toa photographing region, a second projecting device not operating at the same time as the first projecting device is used for projecting substantially-uniform light to the photographing region, firstand second imaging units having the predetermined relative position relationship are used for photographing the photographing region to respectively acquire first and second two-dimensional images under irradiation of discrete spots, and a processor is used for acquiring the depth map information of a face in the photographing region based on the first and second two-dimensional images, acquiringthe outline information of the face based on the two-dimensional images photographed under the projected uniform light and determining whether the face of the photographing region is the same as a stored target face according to the depth map information and the outline information. The equipment is advantaged in that the information required for identifying the to-be-detected face in various application scenes can be rapidly and accurately acquired through photographing two-dimensional and three-dimensional image materials frame by frame.

The invention provides a knowledge graph embedding method based on a diverse graph attention mechanism, and the method comprises the following steps: 1, carrying out the preprocessing of knowledge graph data, and enabling a traditional knowledge graph to be preprocessed into structured data according to model requirements; 2, establishing an entity attention mechanism, wherein the entity attentionmechanism establishing mode is that the vector representation of an entity is learned on an adjacent graph by using n attention heads and self-attention through using a diverse graph attention mechanism; Step 3, establishing a relation attention mechanism in which the vector representation of the entity on the relation graph is learned by using n attention heads and self-attention by using a diverse graph attention mechanism; Step 4, carrying out modeling of multi-relation data in the relation graph; And 5, carrying out model training to obtain vectorized representations of all relationshipsin the knowledge graph.

The invention relates to a three-dimensional attitude acquisition method based on space characteristics of an atmospheric polarization mode. The method is characterized by comprising the following steps of: acquiring a three-dimensional space attitude according to a distribution rule of the atmospheric polarization mode; on the basis that a three-dimensional space coordinate system of the atmospheric polarization mode and a coordinate system of a navigation carrier are established, acquiring the space information of a space remarkable characteristic point of the atmospheric polarization mode; and by measuring the space position change of the space remarkable characteristic point, solving a three-dimensional attitude angle dynamic measurement equation of the navigation carrier to realize acquisition of the three-dimensional attitude information of the navigation carrier. The invention provides the three-dimensional attitude acquisition method for the navigation carrier and is applicable to navigation and positioning of three-dimensional polarized light.

The invention discloses a computer-system-based online handwriting authentication method, which comprises the following steps of: writing and submitting a plurality of groups of registered handwritings through handwriting input equipment by a user, storing the two-dimensional static character pattern position information of display handwritings corresponding to the registered handwritings into a database, and finishing handwriting registration according to the conventional online handwriting authentication method; in the test of a computer system, submitting a generated identification number by the user, randomly selecting a plurality of registered handwritings from the registered handwritings submitted by a corresponding user in a registration stage, and displaying the two-dimensional static character pattern position information of the display handwritings of the selected registered handwritings to the user; and submitting a corresponding test handwriting set at a time within a specified time by the user, finishing test handwriting authentication according to the computer-system-based online handwriting authentication method, and comprehensively making a decision to finish the authentication of the user. The method has the advantages of replay attack resistance, difficulty in the attack of an imitator and active defense; and the neglected shortcomings of dependence on handwriting confidentiality and high imitation rate neglected by the conventional online handwriting authentication method are effectively overcome.

The invention provides a construction method for a master patient index platform system. The system adopts data integration and is constructed based on the Web Service model. The method is characterized by comprising the following steps: A. integrating data of various existing information systems of a hospital into a same database; B. establishing cross indexes and a master index of patients for the integrated data; C. establishing Web Service for the integrated data for system calling; D. calling the Web Service on the system platform for centralized display of patient information. The method has the advantages that through establishment of the unified master patient index for the existing information systems of the hospital, such as an HIS (health information system), an EMR (electronic medical record) system, an LIS (laboratory information system), a mobile curing and nursing system and a psychological examination system, cross indexing of patient identifiers scattered in the different systems can be carried out, and unique identifiers can be assigned to the patients in the different systems.

The invention relates to implementation method of a peer-to-peer network based on an underwater sound and radio mixed channel, which comprises a plurality of water surface nodes and a plurality of underwater nodes. Each node in the network has the same capacity in information transmission. The peer-to-peer network adopts a centralized management and related control information issue mechanism, and selects any water surface node as a central node to manage and monitor the whole network. When a system is initialized or a topological structure is changed, the central node calculates a local routing table of each node according to real-time connection conditions of the network system, and then the routing tables are sent to the corresponding nodes from the close to the distant. After each node receives a frame of data in a communication process, a forwarding path of the frame of data is judged according to address information and the local routing tables in a frame header so as to achieve peer-to-peer communication of any two nodes in the network. Management monitoring of the central node comprises variation of the network topological structure, issuing of the route forwarding tables to each nodes, underwater node connection management and operating conditions of each network node.

The embodiment of the invention provides a state updating method and apparatus, and an interaction system. The method relates to the Internet of Videos, the Internet of Videos comprises a protocol conversion server and one or more Internet of Videos terminals, the protocol conversion server communicates with a gateway server, the gateway server is a node device of the Internet of Videos or a non-Internet of Videos, the protocol conversion server comprises directory information, the directory information at least comprises identifiers and state information of one or more network cameras, and the method comprises the following steps: receiving a state updating message sent by the gateway server; updating the directory information based on the state updating message; and sending the updated directory information to the one or more Internet of Videos terminals. By adoption of the state updating method and apparatus provided by the embodiment of the invention, the Internet of Videos terminal can obtain the directory information, and the directory information can be updated in time when the state of the network camera changes, so that real-time access and management of the network cameracan be achieved.