82 results about "Inverted order" patented technology

The embodiment of the invention provides a text retrieval method and device. The text retrieval method includes the steps that an original text input by a user is acquired; retrieval words are acquired from the original text; according to the retrieval requirement of the user, the retrieval words are filtered to acquire keywords; the keywords are combined, texts in a text database are retrieved according to the combined keywords, and at least one retrieval text is acquired; the retrieval texts are displayed in a relevancy inverted order mode, and the keywords are highlighted in the retrieval texts, wherein relevancy is used for representing the relevancy degree of the original text and the retrieval texts. Due to the fact that the keywords are acquired by filtering the retrieval words according to the retrieval requirement of the user, the probability that the keywords are invalid words is reduced, and the retrieval requirement is better met compared with the manner that the retrieval words are directly acquired from the original text, the retrieval texts acquired through retrieval by the application of the combined keywords can well meet the retrieval requirement, and therefore retrieval accuracy is improved.

The invention discloses a method which utilizes FPGA to carry out the floating-point FFT processing, and relates to the signal processing technical field. The method aims to avoid the deficiency of the prior FFT processing method, exceeds the universal DSP processing method in the operation efficiency, and can finish the whole FFT processing in a shorter clock cycle. The method has the realization process that the input data are processed to be floating-point numbers; floating-point data are stored into an intermediate data memory 1 in order; the data are read from the intermediate data memory 1 to carry out a butterfly operation, and the processing result is stored into an intermediate data memory 2; the data are read from the intermediate data memory 2 to carry out the butterfly operation, and the processing result is stored in the intermediate data memory 1; the two operations are alternatively carried out until the FFT processing is over; the operation result is read from the intermediate data memory 1 or 2 according to the inverted order of the address; the output floating-point data are processed to be fixed-point numbers, and are output together with the floating-point result. The invention is applicable to the digital signal processing technology field, such as radar, communication, images, etc.

The invention discloses a method for rapidly positioning videos by time, which is characterized by comprising the following steps of: when recording a video, distributing a video storage space and video records in an index; recording a name of the video storage space, a video start time, a video start offset and a start offset of I frame information into the video records; writing frame data into the video storage space from a position of the start offset of the video in sequence; if the frame is an I frame, writing the I frame information from a position of the start offset of the I frame information in an inverted order; after writing the data, recording a finishing time of the video, a size of the video and a size of the I frame information into the video records; when the videos are positioned, finding out the video records containing time points from the index according to the time points of the videos to be positioned, thereby obtaining the name of the video storage space and the start offset of the I frame information; when reading the position of the start offset of the I frame information in the video storage space, reading the I frame information in an inverted order, matching the I frame information with the time points, and positioning the information to a video position offset in an I frame file in the I frame information. The invention also discloses a device for rapidly positioning the videos by time. According to the method and the device provided by the invention, a speed for positioning the videos by time can be accelerated.

The invention relates to a pipeline analog-to-digital converter and a quick calibration method of capacitance mismatch thereof. The quick calibration method is characterized by carrying out inverted order calibration from a level circuit module of the last level. The calibration method of the level circuit module of each level comprises the following steps of: 1. starting calibration: closing thesecond transfer switch and the fourth transfer switch and cutting off the first transfer switch and the third transfer switch to enable the level circuit modules to work in the calibration state; 2. measuring quantitative results: setting input signals for the level circuit modules, and carrying out analog-to-digital conversion by the level circuit modules following the corresponding level and the back analog-to-digital conversion module of the pipeline analog-to-digital converter to obtain a set of corresponding quantitative results; and 3. measuring quantitative step length: subtracting thecorresponding quantitative results to obtain the actual quantitative step length of the level circuit modules and storing the step length in a storage module. Roughly quantitative calibration resultsare added by the invention, thereby improving the linearity of the transmission function of the pipeline analog-to-digital converter and increasing the significant digit of analog-to-digital conversion.

The invention discloses a fiend trend acquisition method and a fiend trend acquisition device capable of solving information overload. The method is characterized by comprising the following steps of: sending a request for viewing friend trends; acquiring friendships and friend privacy conditions of a user; acquiring dynamic data from a database according to the privacy conditions; merging the dynamic data and generating dynamic items; and outputting the dynamic items to the user. The method can acquire dynamic information of friends in a time inverted order, can display more substantial contents in dynamic blocks, and solves the problem of the information overload in the dynamic blocks.

The invention relates to an HBase-based storage method of intelligent transportation field checkpost data. The method combines the own characteristics of HBase and blends a read-write scene of the checkpost data to carry out a customization Rowkey design on a primary table and a secondary index table so as to bring convenience for quickly and efficiently inquiring relevant business, so that a query result can be globally arranged in an inverted order according to time, and a favorable foundation is laid for the further statistical analysis and research and judgment of the data. The high-performance concurrent read-write requirement method of the mass checkpost data of the traditional intelligent transportation industry can be realized.

The invention provides a method and device for real-time input digital image mirroring storage. The method comprises the steps that digital image data are provided, wherein the digital image data comprise a plurality of rows, and each row comprises a plurality of pixel data; every BL pixel data in each row of pixel data are sorted according to inverted order, and the initial address of the BL pixel data is marked as a first address, wherein BL is the burst length of DMA; the BL pixel data which are sorted according to the inverted order are written into a first in first out storage; the BL pixel data which are arranged according to the inverted order are read from the first in first out storage in a DMA mode and stored, the storing initial address is marked as a second address, and the second address and the first address are in a horizontal mirroring relationship. By means of the method and device for real-time input digital image mirroring storage, horizontal mirroring operation can be realized through small cache space.

The invention relates to a method for judging voltage sag reason. The method comprises the following steps: calculating the active value initial waveform of each phase voltage by using a point-by-point sliding method according to three-phase voltage for actually measured public connection point, and calculating the voltage active value operation waveform by using the voltage active value initial waveform; selecting a phase with the minimum value of voltage sage scale in the three-phase voltage active value operation waveform, calculating to obtain the voltage active value pretreatment waveform sequence and an inverted order waveform sequence thereof; taking the two waveform sequences as an input for calculating waveform relative coefficients, calculating the waveform relative coefficients; and finally judging that the reason causing the voltage sag is one of line fault, transformer commissioning and induction motor start. The method for judging voltage sag reason is accurate and reliable in judgment, and simple in calculation, which facilitates the actual measurement execution.

The invention provides a language model training method, a query method and a corresponding device; the training method comprises the following steps: partitioning training corpus to obtain N groups of training corpus, wherein the N is a positive integer bigger than 1; carrying out parallel execution to the N groups of training corpus obtained by partition; ordering recursion suffix trees so as to respectively obtain ordering results reflecting inverted order position conditions of each word in each sentence; based on the ordering result, respectively setting up an n-ary word order tree according to a preset first word order structure under a condition that a second last word of each sentence is regarded as a root node, and the n refers to the preset one or more positive integers bigger than 1; combining the word order trees of the same root node and converting the word order so as to obtain a Trie tree storing forward probability information. A word order sequence of the Trie tree from root to leaf is as the following order: the second last word in the sentence, a last work, and other words arranged in an inverted order. By employing the method and device, the language model can be fast updated.

The invention discloses a method and a device for realizing backward playing of a video file. The method comprises the steps of acquiring a video file, and loading a corresponding SDK file; determining at least one video frame sequence fragment from the video file frame sequence according to an inputted video backward playing instruction, and using index information of a reference I frame of the video frame sequence fragment header to act as input parameters of an SDK interface so as to call the SDK file, thereby acquiring YUV frame sequence fragment data after sequential decoding of the video frame sequence and corresponding timestamp information, and caching the YUV frame sequence fragment data and the corresponding timestamp information to at least one buffer area; and displaying the YUV frame sequence fragment data in the at least one buffer area in a inverted sequence according to the timestamp information. By adopting the technical scheme provided by the invention, only one time of decoding is required to be carried out on the same video frame sequence set, and then inverted-order display is carried out, thereby effectively improving the running efficiency of programs.

The invention discloses a horizontal shaft wind driven generator for wind driven generation, comprising a tower frame, a stay rope, an engine room assembly component and a wind wheel. The horizontal shaft wind driven generator is characterized in that the tower frame is divided into a structure which can be mounted from the top; the tower frame can be provided with a falling preventing device; under the protection of the falling preventing device, a mounted part can be lifted by a hydraulic cylinder for a certain height, and then, a tower frame part which is arranged below the mounted part and close to the mounted part can be mounted; and the dismounting process can be carried out in an inverted order. The tower frame of the wind driven generator is light in weight and convenient to transport, and can be mounted and dismounted rapidly by utilizing a hydraulic lift dismounting and mounting method; all equipment on the tower frame can be overhauled or replaced at regular intervals; the problem that the original wind driven generator has overhigh requirements for materials and service life is solved; and the import substitution rate can be favorably increased, and the cost can be favorably reduced.

The invention discloses a robot motion reproduction method. The method comprises the following steps: 1) a robot is started; 2) a worker pushes a mechanical arm to move; 3) a robot storage component records control commands sent by a robot control system; 4) the step 2) is carried out until the worker presses a stop button; and 5) the robot sends the control commands to each joint of the robot from the latest control command in an inverted order according to the stored control commands sent by the robot control system, and the robot returns to the starting point. The robot motion reproduction method is similar to the replay function of video play, and realizes motion reproduction.

The invention discloses a video inverted-order playback and rapid positioning method based on a HIKVISION DVR. The video inverted-order playback and rapid positioning method includes the following steps: (1) playing stopping time of a current video is obtained, and playback is started from the time point; (2) starting time is set to be 0, and it is shown that playback can be continued from the stopping time of the video; (3) the starting time and the stopping time are converted into system file time, so that related bottom-layer system functions can be conveniently called; (4) downloading threads are started, wherein the mutual exclusion variable concept is used in the threads to control the threads to access a variable in order, and thread blocking is prevented; (5) starting from the stopping time, videos are played every five seconds, video bit streams in every five seconds are processed, and inverted-order playing of the corresponding videos is carried out through a buffering area and a callback function; (6) the process is repeated till a playback stopping process is started, and playback is finished; (7) a video in-order playing process is started.

The embodiment of the invention discloses an interface configuration migration method and device. Through adoption of the technical scheme provided by the embodiment of the invention, the interface configuration migration method and device Interface configuration migration method and device are able to automatically configure and reset a source interface, add the non-default configuration of the source interface to an object interface according to the configuration order and realize configuration automatic migration operation in the process of interface switching, so that the manual configuration is replaced by automatic operation, the efficiencies of interface switching and configuration migration are improved; and moreover, the problems of missed matching and mismatching in the process of multi-configuration operation are avoided and the accuracy of configuration migration is improved by the operation mode of resetting the source interface in an inverted order and configuring the object interface in order in the condition of ensured configuration stability of the interface.

The invention relates to a bullet screen protection method and device, belongs to the field of processing of video information, and in particular relates to an intelligent bullet screen protection method and device for a video website. The intelligent bullet screen protection method comprises the following steps of: (1), receiving a bullet screen storage period and a bullet screen storage upper limit set by a user, when the period is up, judging whether the number of bullet screens is beyond the bullet screen storage upper limit or not, if so, executing the step (2), and otherwise, storing all the bullet screens of a video; and (2), sorting bullet screen contents in an inverted order according to the time axis, deleting a part of bullet screens having the longest generation time, and then, storing residual bullet screens. In general, compared with the prior art, the technical scheme in the invention has the advantages that: bullet screen information is merged; therefore, the bullet screen storage space is saved; and furthermore, important information in the bullet screens can be prevented from being deleted.

The invention relates to an FFT accelerator with a high throughput rate. The FFT accelerator with the high throughput rate is characterized by comprising a data storage module, an address generation module and an FFT acceleration module, wherein the data storage module is used for reading, writing and transmission of data, the address generation module provides a target address of data transmission for the data storage module, and the FFT acceleration module carries out FFT on the data output by the data storage module. The FFT accelerator with the high throughput rate has the advantages that a one-way delayed feedback structure is adopted, the throughput rate is high, and the storage resources in a chip are effectively saved. The FFT accelerator supports expansion interface input on one hand, and supports ping-pong output on the other and. In the data input process, cache space is not needed, the data are fed into an FFT calculation component directly, and FFT calculation is carried out. In the data output process, inverted-order output is carried out through the cache.

The invention discloses a virtual link priority mapping method based on path sorting, and relates to the technical field of communication. Firstly, constructing a physical network topology G, and copying an auxiliary graph G_copy; calculating the weight of each virtual link of the link request bandwidth corresponding to the current service, and arranging the weights in an inverted order to obtaina new set VLs_sorted; sequentially taking out a certain virtual link VL according to an inverted sequence; respectively setting a mapping node candidate set vnode1_cand and a mapping node candidate set vnode2_cand of the virtual nodes at the two ends; and selecting one node from each of the candidate paths to generate at least one shortest candidate path, sequentially scoring the shortest candidate paths, arranging the shortest candidate paths in an inverted order to obtain a candidate path set path_cand_xgb, and sequentially selecting the candidate paths from the candidate path set path set path_cand_xgb to perform link mapping on the G_copy; and finally, calculating resource quantity of idle computing resources meeting the computing resource quantity requested by the virtual node on thephysical node mapped by each virtual node on the path, setting node resource occupation and link resource occupation in G, and enabling mapping of the virtual link VL to be successful. According to the invention, resource distribution is optimized, the stability of virtual link mapping is improved, and the blocking rate in the transmission process is reduced.

The invention discloses a method for recommending microblog, wechat and mobile client cross-information-source accounts. The method comprises the following steps: dividing microblog, wechat and mobileclient cross-information-source account correlativity measurement indexes into three levels comprising a plurality of primary correlativity measurement indexes, wherein various primary indexes are issued to a plurality of secondary indexes, and various dimension data fields corresponding to the secondary indexes are tertiary indexes; determining seed accounts and a plurality of target accounts; acquiring various dimension data under the tertiary indexes, and quantifying similarity of the various dimension data; determining primary index weight and weights of various secondary indexes under the primary indexes on the basis of user attention needs; and calculating the weighted sum of the similarities of the various dimension data under the obtained various tertiary correlativity measurementindexes and the respective weights to obtain correlativity exponents of various target accounts, and recommending the correlativity exponents of the target accounts in an inverted order. The method can recommend the accounts in a cross-information-source manner, and the recommending result is accurate and reasonable.

The invention relates to the field of communication, in particular to an inverted order arrangement system and an inverted order arrangement method for fast Fourier transformation / discrete Fourier transformation (FFT / DFT) and an operating system for FFT / DFT. The inverted order arrangement system comprises a signal control device and an order inverting device, wherein the signal control device is used for acquiring a control signal corresponding to data to be subjected to order inversion at each point and sending the control signal to the order inverting device to make the order inverting device invert the order of the data at each point according to the received control signal; and the order inverting device is used for inverting the order of the data to be subjected to order conversion according to the received control signal. The system solves the problems that the inverted order arrangement time for FFT / DFT is too long and the utilization efficiency of a vector processor is low when the vector processor is used for computing FFT / DFT, and the vector computing efficiency for FFT / DFT can be improved.

The invention relates to the technical field of high-speed railway steel rail welding, and discloses an online high-quality permanent welding-repairing construction method for a high-speed railway line. The online high-quality permanent compound-welding construction method comprises the following steps of adopting a full-automatic numerical control gas pressure rail welding machine configured in a movable type gas pressure rail welding vehicle, adopting an inverted order method as an operating method for welding-repairing construction, namely firstly carrying out offline non-stress welding and postwelding pressure maintaining normalizing heat treatment at the position of a 1# head by the rail welding vehicle, then making the rail welding vehicle return to a parking place, then adopting a metal sleeper to jack up a 20-meter steel rail at the retained section of a 2# head, making the rail welding vehicle climb to a station of the 2# head, and then carrying out online stress welding and postwelding pressure maintaining normalizing heat treatment at the position of the 2# head. By the adoption of the online welding-repairing standardized construction technology of the gas pressure rail welding vehicle, the operating process is safe, the process stability is good, welding head quality is excellent, once welding locking operation is efficient and the construction scheme is simple and economic.

The present invention relates to a cascaded Spinal code coding and decoding method, system and device. The method comprises the steps of: the step S1: employing a LDPC outer code with a high bit rateby a sending terminal to perform pre-coding of information source bits to generate LDPC middle bits, wherein the LDPC middle bits are subjected to inverted order and processed by a Spinal coder to obtain Spinal codewords, and the Spinal codewords are sent to a wireless channel; and the step S2: receiving a certain amount of Spinal codewords by a receiving terminal from a wireless channel to perform soft decoding, wherein the soft decoding method comprises the steps of: retaining a plurality of survival paths, and calculating the log-likelihood ratio (LLR) of each LDPC middle bit according to the survival paths; and the step S3: performing decoding of the LLR of the LLR of the input LDPC middle bits by the LDPC decoder to obtain decoded information source bits. Compared to the prior art, the LDPC is used by the sending terminal to perform pre-coding of the information source, and the Spinal soft decoder is provided at the receiving terminal to retain the soft information of the LDPC middle bits so as to solve the defects that the protection for the information source bits at the rear position in the information source sequence by the Spinal codes is not enough and obviously reduce the BER of the information source after decoding.

The invention provides a stacking method, a device and a storage medium for freight in a vehicle compartment, and belongs to the technical field of the logistics transportation. The method comprises the following steps: according to an order form sequence, a number of stacked containers in each stacking subarea, a number of stacking layers and a number of the containers in tail stacking, enablingthe containers in each order form to be stacked in the stacking subareas according to a preset rule, enabling the containers in the order form with the inverted order form sequence to be successivelystacked from the stacking subarea away from a discharging hatch of the vehicle compartment to the stacking subarea adjacent to the discharging hatch, and while the containers in at least two order forms are stacked in the same stacking subarea, stacking the containers in the order form of which the sequence is later in the at least two order forms above the containers in the order form of which the sequence is previous, thereby realizing inverted order freight loading of the vehicle according to the order form sequence on the one hand, and realizing sequential freight unloading according to the order form sequence, improving unloading efficiency; and realizing space stacking in the vehicle compartment on the other hand, and improving efficiency of the vehicle.

The invention relates to the technical field of sorting and displaying of query result records of query retrieval software and a search engine and in particular discloses an information record sorting method based on a virtual time value. The method comprises the following steps of: 1) selecting priority factors which affect record sorting; 2) converting the priority factors which affect the record sorting into the virtual time value; and 3) arranging information in an inverted order according to virtual time. The invention has the advantages that: by the method in which the virtual time serves as sorting time, a mechanism for first presentation of a new message can still work and the priority of presentation and submission of the records can be effectively controlled according to the will of a person; the priority factors are combined in the virtual time value, so compatibility is provided; the method is simple and easy to understand and implement; and the historical priority of the records can be automatically kept, so failure cannot be caused due to ending of the priority.

The invention relates to the technical field of computer processing, in particular to a quick file searching method based on an Android system. The quick file searching method comprises the following steps: acquiring information of paths where multi-media files are from a media library; removing repeated path information; saving the rest information in a path set; searching each piece of path information in the path set to obtain information of all the multi-media files; arranging the files according to the last modification time of the files in an inverted order; and displaying the searched multimedia files in a classified manner. The quick file searching method has the advantages that the problem that file paths in different Android systems are different, and the paths of newly added files of a user differ in thousands of ways are solved; fast and effective file searching and classified displaying of the newly added files in an Android system can be realized without restarting a mobile phone or long-time waiting; and the quick file searching method has universality, and is suitable for Android systems of all versions.

The invention discloses a fiber breakage positioning method for a phi-OTDR distributed optical fiber sensing system, which comprises the steps of acquiring sample data, and establishing a least squaremethod data model; taking the distance from a starting point to an end point when the optical fiber is not broken as a standard distance, and acquiring signal intensities inside and outside the standard distance in the sensing system as process data and process quality data respectively; calculating according to the process quality data to obtain a fiber breakage judgment threshold; obtaining a fiber breakage judgment variance according to the process data in a window at the tail end of the standard distance; when the fiber breakage judgment variance is less than the fiber breakage judgment threshold, sliding the window forwards to obtain a current window, and solving a positioning variance according to the process data in the window; when the positioning variance is greater than the fiber breakage judgment threshold TH, searching first process data greater than the maximum value of the process quality data from the tail end of the window in an inverted order, and taking a position point corresponding to the process data as a fiber breakage position point, and otherwise, continuing to slide the window. According to the invention, the fiber breakage position point can be accuratelyand rapidly found.

The invention discloses a video playing method and device, a storage medium and an electronic device. The method comprises: determining a target display area in a plurality of display areas of a display device, the plurality of display areas correspond to a plurality of video channels, and each display area is used for displaying one path of video data; according to the resolution of the target display area, lowering the resolution of a video frame picture in an initial picture group GOP sequence of target road video data to be displayed in the target display area to obtain a target GOP sequence; and playing the target GOP sequence in an inverted order in the target display area. According to the invention, the technical problem of equipment operation performance reduction caused by overlarge memory consumption in a video playing method in the related art is solved.

The invention discloses a stepping motor acceleration and deceleration control method based on an FPGA, and the method comprises the steps: generating a speed table of a controlled stepping motor based on start frequency, operation time and target frequency through a preset operation formula; determining a reading sequence of the speed table according to acceleration or deceleration demands; reading the speed table based on the determined reading sequence, generating a pulse signal through a clock, and driving the controlled stepping motor to carry out the acceleration and deceleration. Duringthe control of the speed of the stepping motor, the pulse frequency is changed through the speed table so as to drive the stepping motor to accelerate and decelerate. Therefore, the method can achieve the precise control of the movement of the stepping motor, guarantees the reliability of the motor, guarantees that the motor is not out of step, and is good in practicality. Moreover, the same speed table is employed for the acceleration and deceleration of the stepping motor. During deceleration, the data in the table just needs to be read at an inverted order, thereby simplifying the design,and reducing the RAM capacity.

The invention discloses a construction method for assembling a cone steel coal bucket of a super-large type bundling polygonal coal bunker group. A free lifting platform and electric hoists are utilized to conduct assembling construction, firstly, the steel coal bucket is divided into a plurality of sections, according to the size of each section of the steel coal bucket, a steel plate is cut into fan rings through a discharging machine, and the fan rings are rolled into shapes; then the first section of the steel coal bucket is welded and formed on the spot, hanging rings are evenly arranged on the outer side of the first section of the steel coal bucket, the first section of the steel coal bucket is hoisted in place through a truck-mounted crane, and the electric hoists are mounted at the hanging rings; the free lifting platform is assembled on the ground on the spot, and the circle center of the free lifting platform coincides with the circle center of the steel coal bucket; positioning baffles are arranged on the free lifting platform, the fan rings constituting a next section of the steel coal bucket are placed on the free lifting platform and formed into shapes; then longitudinal seams are welded; finally the parts needed for butting are placed on the free lifting platform, the free lifting platform is lifted to the butting position through the electric hoists, and annular seams are welded in pairs; and assembling of the rest sections of the steel coal bucket is completed sequentially in an inverted order.

The invention provides a bank transaction information processing method and device. The method comprises the steps that data screening conditions are determined according to a business demand; according to the data screening conditions, corresponding data is acquired from a transaction detail physical table; the data is stored into an inverted-order big array according to the near-to-far order oftime; and the data in the inverted-order big array is utilized to perform corresponding business application processing. Compared with the traditional mode of accessing the transaction detail physicaltable anytime to acquire information, according to the scheme, the data screening conditions are established in advance, and the transaction detail big array is generated at a time through screening,loading and ordering to be used by multiple times in a transaction according to the corresponding business demand. Through the scheme, database operation expenditure is lowered, only useful key information is saved in the big array, and working efficiency is improved.

The invention discloses a message ordering method and system as well as a method for displaying messages in an SNS. The message ordering method comprises the steps as follows: root message identification (ID) and a rebroadcasting and / or commenting timeline are extracted from a user rebroadcasted and / or commented message; whether the same root message ID exists in a message queue is judged; if the same root message ID exists, old root message ID and timeline are replaced with extracted root message ID and timeline, and the message is inserted into the message queue in an inverted order according to the replaced timeline; and if the same root message ID does not exist, the message is inserted into the message queue in an inverted order according to the extracted timeline. According to the message ordering method and system as well as the method for displaying the messages in the SNS, the storage space can be saved, the calculation amount is reduced, and the system performance can be improved.