272results about How to "Correspondence is accurate" patented technology

The invention relates to the multi-sensor time calibration algorithm field, especially relates to a visual inertial range measurement method and equipment using online time calibration and aims at increasing camera pose calculation precision. The visual inertial range measurement method comprises the following steps of roughly aligning the timestamp of a camera image with the time system of an IMUand taking the data of a camera and the IMU as input; taking the time delay closest to a camera pose calculated by the camera data and the IMU data as the preliminary estimation value of camera timedelay; and using an IMU error item expression method with a time delay parameter to add a correction term related to the time delay into the pre-integration result of the IMU, taking as the parameterof nonlinear optimization and realizing the accurate calibration of the time delay. Compared with an existing method, by using the method of the invention, time delay calibration is accurate, and forequipment which does not carry out hardware synchronization, better performance can be achieved when the equipment rapidly makes a turn and suddenly stops.

A system used for sending out information of advertisement comprises obtaining unit of input information, user library, information library, advertisement library, character-processing unit and information-sending unit. The method for sending out information of advertisement is also disclosed.

The invention relates to the field of building information models, in particular to an integration, collaborative design and delivery method and system based on BIM and design information. The integration method comprises the following steps: constructing a three-dimensional basic scene; constructing a hierarchical description model, wherein the hierarchical description model comprises a metadatalayer; extracting BIM model information and design information from the multi-specialty BIM software, and storing the design information and the BIM model information to a cloud service; respectivelyassociating the design information and the BIM model information with a metadata unit; step 5, conducting format mapping on the original BIM model, and writing metadata units, model component types and design positioning information corresponding to the BIM model into all components of the GIS format of the BIM model; and step 6, integrating the GIS format of the BIM model into a three-dimensionalbasic scene to generate an integrated three-dimensional scene. The invention also provides a collaborative design method and a delivery method based on the integration method, and a corresponding system.

The invention relates to an operating state assessment method of a capacitor voltage transformer. Data collection of an operating state of the capacitor voltage transformer is performed; collected data are classified and processed and taken as bases for assessing the operating state of the capacitor voltage transformer; the operating state of the capacitor voltage transformer is assessed, and a comprehensive state quantity assessment system of the capacitor voltage transformer is built with an correlation analysis method; the operating state of the capacitor voltage transformer is graded with a single state quantity score calculation method and a capacitor voltage transformer overall score calculation method; constant weight coefficients of each single state quantity and each comprehensive state quantity are provided; and variable weight coefficients of all comprehensive state quantities are calculated; the overall score of the capacitor voltage transformer is calculated according to scores and the variable weight coefficients of all comprehensive state quantities; and then the operating state of the capacitor voltage transformer is judged according to the overall score situation of the capacitor voltage transformer.

The invention discloses a method for code assigning, reading and data correlation of each pack of cigarettes. The method comprises the steps of producing small pack packages of cigarettes and carton packages of cigarettes; assigning codes when printing cigarette packages; conducting carton package with a carton packing machine; scanning unique bar codes on small pack packages and carton packages with a bar code reading device; and conducting exception handling during bar code reading. The method can be used for code assigning for each pack of cigarettes, and codes accurately correspond to bar codes. The method is characterized in that modification of a production line is low in work load, small in influence range and convenient to implement during reading of bar codes; a modification link of the production line is performed after quality inspection and rejection and facilitates accurate corresponding between carton codes and pack codes; the modification link of the production line is performed before shipping of cigarette cartons, the speed requirements for reading and detection of bar codes are greatly reduced, and then the cost of devices to be added is reduced.

The invention discloses a map information handling method, including: pairing a plurality of elements in a same web page anchor text set to obtain matching pairs; removing the administrative region names in the anchor text set; selecting the candidate full abbreviation matching pairs according to the similarity of the matching pairs; using participle to remove the prefix and postfix existing in the full abbreviation matching pairs, and then outputting the matching pairs that have passed the prearranged threshold condition filtration. Also disclosed is a map information handling apparatus and system. Adoption of the invention can automatically establish a full name and abbreviation matching relationship, thereby fully utilizing the interest point data, improving the searching matching efficiency and user experience degree.

The invention discloses a multi-protocol information resolving system based on a network packet, comprising gateway equipment 1, a client computer 2, a server 3, a database 4 and an information security server 5, wherein the server 3 is respectively connected with the gateway equipment 1, the client computer 2, the database 4 and the information security server 5; the difference is that the server 3 is provided with a network packet capturing module 31, a protocol analysis module 32, a packet recombination module 33, a mail information reduction module 34, an MSN instant messaging information reduction module 35 and a webpage information reduction module 36. The method reduces to obtain all content of the E-mail, MSN instant communication and HTTP requested key information by the protocol analysis, packet recombination and application layer resolution to the original packet, and two filtering modes of pre-filtering and back filtering are adopted to accurately judge and analyze content filtering.

The invention is suitable for the technical field of automatic control, and provides a production line device used for similar multistage assembly product code assigning and tracing. A first bar code reader 5 is used for reading EAN-13 codes of single stage products after separation, a first rejection device 6 is used for rejecting the single stage products with the reading EAN-13 codes, not involved in current work order information, a first obstruction cylinder 7 is used for obstructing the single stage products under a laser coding machine 8, the laser coding machine 8 is used for printing two-dimensional codes on the upward sides of the single stage products, a first pushing cylinder 9 is used for pushing the obstructed single stage products periodically, an interval separation device 10 is used for separating the single stage products moving again at equal intervals according to a setup parameter, a two-dimensional code collector 11 is used for reading the two-dimensional codes of the single stage products, and a second rejection device 12 is used for rejecting the single stage products with the two-dimensional codes which cannot be read successfully. Through operations of an IPC and a PLC device, the parameter setting is finished, so that the production line device can produce special-type or special-stage finished products as required, and has the universality, and the cost is reduced.

The invention discloses a method and device capable of automatically recognizing the adjacency relation between a server and an access switch and a webmaster server. The problem that the adjacency relation between a server physical host and the access switch cannot be effectively determined in a data center in the prior art is solved. According to a network topological structure of the established data center, the webmaster can acquire the type of network equipment in the topological structure. Edge devices of the data center can be recognized according to the type of the network equipment. According to a recognized APP list of the access switch, the server physical host communicated with an interface of the access switch can be determined. Furthermore, the corresponding relation between the interface of the access switch and the determined server physical hose is established, and the webmaster server can determine a network card, communicated with the corresponding interface of the access switch, of the server physical host to establish the corresponding relation between the interface of the access switch and the network card of the server physical host.

The invention discloses a glacial lake burst early-warning method. Aiming at the defects that the adopted index is not reasonable, modification on observation data is over-simple in the existing glacial lake burst early-warning method, the invention provides the glacial lake burst early-warning method comprehensively considering the affects from an atmospheric temperature and the rainfall condition. According to the method, long-term observation data of temperature and rainfall in an observatory station is obtained and analyzed by a control center, a cumulative positive temperature daily increasing speed value TV in early days of a forecast date and a rainfall daily increasing speed value RV in early 30 days of the forecast date are calculated, and the TV value and the RV value are simultaneously subjected to double-index comparison with a burst warning curve RV=2.7214TV<-0.956> to judge the burst risks of the glacial lake, and an alarming system is started by the control center if necessary. According to the method, the corresponding relationship between two specific indexes of the cumulated temperature daily increasing speed value and the rainfall daily increasing speed value in early 30 days which are selected from numerous temperature and rainfall indexes and the glacial lake burst danger is determined, and the burst early-warning curve is determined. The forecast is carried out according to a more comprehensive and reasonable climate index, so the early-warning effectiveness is increased.

The invention provides a method for calibrating a thermal infrared imager. The method, by correcting dynamic range and focal plane temperature of the thermal infrared imager, takes comprehensive considerations of impact factors from temperature drift effects and ge-window attenuating effects, and establishes the function relation between temperatures and the response of the thermal infrared imager after correction so as to calibrate the thermal infrared imager. According to the invention, the method is intended for calibrating the thermal infrared imager, can at the same time calibrate a plurality of thermal infrared imagers, can calibrate accurately and has strong applicability.

The invention provides a big data access authorization method and device and a big data platform. The method comprises the following steps: extracting behavior information of an authenticated user ofthe big data platform; evaluating the behavior information of the user according to the service scene, marking user tags of multiple dimensions a for the user to construct a user portrait, and acquiring the tag weight corresponding to each user tag by fusing the subjective importance degree and the objective importance degree of the tags; updating the user portrait at preset time intervals to realize dynamic updating of the user tag and the tag weight thereof; and performing access authorization on the user according to the updated user portrait. According to the invention, personalized authorization of different users can be realized, and the constantly changing personalized access requirements of different subjects are met. Dependence on professional knowledge of an administrator can bereduced, and the administrator can actively authorize a user in advance conveniently. The user rsuspicion and the service demand can be accurately predicted and the data security of the big data platform can be effectively improved.

The invention discloses a wearable thermoelectric generator with a hollow structure base and a manufacture method thereof. The thermal end face of a thermoelectric block array is connected with the copper electrode of a flexible printed circuit board, and the cold end face is connected with a copper conductive sheet. The thermoelectric block array is connected in series or serial-parallel with the cold end copper conductive sheet through the copper electrode. The manufacture method comprises the steps of flexible printed circuit board manufacturing and solder coating, thermoelectric block positioning and welding, cold end copper conductive sheet positioning and solder coating, thermoelectric generator cold end assembly and welding and the like. According to the invention, the circuit board increases the flexibility of the wearable thermoelectric generator; the number of rows of the thermoelectric block array and the number of thermoelectric blocks within each row are changed to meet the needs of different driving devices; a thermoelectric block positioning plate is used to prevent P-type and N-type thermoelectric blocks from moving during a welding process to ensure good contact with a conductive electrode; and the cold end copper conductive sheet is three-dimensionally printed and positioned, so that the thermoelectric blocks and the cold end copper conductive sheet are accurately corresponding in position and in good contact.

The invention discloses a power bank software firmware update system and an update method thereof. The system includes: a server, a mobile terminal and a power bank, the power bank communicates with the mobile terminal in short-distance wireless communication, and the mobile terminal communicates with the server network connection; the charging treasure also includes a short-range wireless communication module and a microprocessor. The advantage is that the Bluetooth module or NB-IOT module is integrated inside the power bank, and the update does not need to rely on its own WIFI, 2G\3G\4G and other communication chips. The power bank can be set to a smaller size, and the energy consumption can effectively reduce the power consumption by 80% compared with the existing network direct update. Due to the reduction of power loss in updating, it can improve the battery life of the power bank and provide effective help for the development of leasing. The main program set in the mobile terminal can assist the server to more accurately correspond to the version number of any power bank.

The invention discloses a positioning device and construction method of a capping beam of a prefabricated bridge, and belongs to the field of construction of the capping beam of the prefabricated bridge. The positioning device mainly consists of truss frames, upper positioning grilles, low positioning grilles, upper positioning bolts, lower positioning bolts and the like, and through the positioning device, the mounting positions of a plurality of anchoring reinforcing bars pre-embedded in the tops of stand columns are guaranteed to be accurate without being influenced by the pouring vibration of the stand columns, so that the accurate positioning is realized; the corresponding construction method of the capping beam of the prefabricated bridge is combined, so that mud jacking pore canals for the capping beam pre-arranged on the capping beam can precisely be corresponding to anchoring reinforcing bars, the stress is reasonable, and the structure is safe; therefore, quick mounting of the capping beam of the prefabricated bridge is realized. The positioning device and the construction method of the capping beam of the prefabricated bridge have the advantages of being simple in structure, convenient to operate, economical and reasonable, high in assembling precision, energy-saving, emission-reduction and the like, can reflect factory, standardized and standard construction, and have notable economic benefits and social benefits.

The embodiment of the present invention provides a method and system for detecting the port state of a network device. The method includes: acquiring the alarm information of an active network deviceconnected to a passive network device within a preset first time period after the tail fiber of any downlink port of the passive network device is plugged in and out within the preset first time period; if it is determined that the alarm information is the alarm information generated by plugging in and out the tail fiber of the downlink port, acquiring an optical network terminal corresponding tothe alarm information and determining the corresponding optical network terminal as an optical network terminal connected to the downlink port. The method and system for detecting the port state of the network device provided by the embodiment of the present invention can quickly and accurately obtain a corresponding relationship between the downlink port of the passive network device and the optical network terminal, and improve the detection efficiency and accuracy of the port state of the network device.

The embodiment of the invention discloses a binocular vision stereo matching method and device based on homonymous mark points, and relates to the technical field of computer vision research, and themethod comprises the steps: obtaining left and right camera images; identifying homonymous mark points in the left and right camera images, and calculating image points of the homonymous mark points;calculating a corresponding epipolar line of each homonymous mark point in the left camera image in the right camera image; calculating a point-line distance between an image point and an epipolar line in the right camera image, and obtaining candidate matching points according to whether the point-line distance meets epipolar line geometric constraints or not; determining an image point matchingpair according to the number of the image points in the left and right camera images and the number of the candidate matching points, by constructing image descriptors of the image points, and according to the similarity between the image descriptors; and performing spatial geometry verification on the image point matching pair. According to the embodiment of the invention, the corresponding relation between the image points on the left and right camera images in the binocular vision system can be quickly and accurately found, the ambiguous matching problem is effectively solved, and interference noise and wrong matching are eliminated.

The invention provides an electromyographic signal, mechanical signal and high speed image simultaneous acquisition system and method. The system comprises an electromyographic signal acquisition module, a mechanical signal acquisition module, a high-speed image acquisition module, a synchronization acquisition trigger module, a control module, a storage module and a storage module. At work, the synchronization acquisition trigger module sends a step signal to three acquisition modules at the same time to trigger the modules to work. Three acquisition modules acquire the electromyographic signal, the mechanical signal and the image of a target based on the absolute time. The control module integrates the acquired electromyographic signal, mechanical signal and image based on the absolute time to form the synchronization data of the electromyographic signal, the mechanical signal and the high-speed image, stores the data in the storage module, and controls the display module to display the synchronization data. According to the invention, electromyographic and mechanical signals produced by the movement of an animal and the movement posture are synchronously measured and stored; and the system and method are suitable for occasions in which three kinds of data are mutually associated when the animal movement is analyzed.

The invention provides a method and system for collecting agricultural product production records under WSN farmland free partitions. The system comprises an agricultural product record information collecting terminal, a server side and a client side. The agricultural product record information collecting terminal comprises a plurality of WSN environment information collecting nodes and a portable information collecting terminal, wherein the WSN environment information collecting nodes are used for collecting farmland environment information, and the portable information collecting terminal is used for collecting farming information, agricultural condition information and plant disease and insect pest image information. By means of the method for collecting the production records based on the system, WSN partitioning and positioning can be conducted on the positions where the farming information, the agricultural condition information and the plant disease and insect pest image information are collected through layout of wireless sensors; through the positions of crops, whole-journey information of the crops in the growth period is recorded, it is ensured that the recorded information accurately corresponds to the crops, and meanwhile information collecting operation is simplified.

Embodiments of the present invention disclose a three-dimensional head modeling method. The method comprises: drawing an initial 3D head model by OpenGL ES; according to a preset facial feature point and non-feature points, establishing a facial model in the initial 3D head model by means of a well-configured Candide3 model; establishing an afterbrain model by means of a quadratic Bezier surface according to contour information provided by the established facial model; combining the facial model with the afterbrain model to form a first 3D head model; adjusting the first 3D head model according to a human face feature point extracted from an acquired image, so as to obtain a second 3D head model; and performing texture mapping on the second 3D head model, so as to obtain a target 3D head model. The present invention further discloses a 3D head modeling apparatus. By adoption of the method and apparatus provided by the present invention, the problems of a large processing data volume and high costs of 3D modeling in the prior art are solved, and time and cost for modeling are saved.

The invention discloses a burning and function testing jig for a skylight control circuit board, the burning and function testing jig comprises a base, wherein the base is used as a bearing structure,at least two sets of burning and testing mechanisms are arranged on the base in parallel, each group of burning and testing mechanism comprises a burning assembly, a testing assembly, an automatic lifting assembly and a burning and testing control module, the burning assembly comprises a carrying plate used for placing the circuit board and a probe used for burning; the testing assembly comprisesa load motor and a magnetic ring, the magnetic ring corresponds to the position of a hall sensor of the circuit board, the automatic lifting assembly is arranged above the burning assembly and comprises an air cylinder and a pressing plate, the carrying plate can be down pressed by the pressing plate via the pressing plate, and the burning and testing control module is respectively electrically connected with the burning assembly, the testing assembly and the automatic lifting assembly, so that the control function is achieved. The burning and function testing jig has the advantages and effects of integrating burning and testing functions, and a multi-channel circuit board automatic simultaneous burning mode is used, so that the production efficiency is improved.