41results about How to "Reduce scan" patented technology

Disclosed is a sensor network, machine type communication (MTC), machine-to-machine (M2M) communication, and technology for Internet of Things (IoT), and is applicable to intelligent services such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An access point (AP) includes a controller that generates a neighbor AP information message including location information of neighbor APs, and a transmitter that transmits the neighbor AP information message including a field indicating that a type of a currently transmitted message includes location information, a length field indicating a length of fields located after the length field in the currently transmitted message, and a location information field indicating location information of each of the neighbor APs.

An embodiment of the invention discloses an antenna alignment method and system. Handshake information of two end antennas mutually aligned is scanned in a negative SNR (signal-noise ratio) communication manner; a curve or surface of receiving statistic changing with angle is generated according to the receiving statistic of a carrier signal; a rough scanning range is determined according to the curve or surface of the receiving statistic changing with the angle, generated according to the receiving statistic; the end antennas perform alternate rough scanning; accordingly, antenna alignment is achieved. The antenna alignment method and system has the advantages that alignment accuracy is guaranteed, alignment time is shortened, manpower cost is saved, and mass application of microwave links is facilitated.

An NMR imaging process includes subjecting an imaging object to a uniform polarizing magnetic field. Orthogonal magnetic field gradients are applied to the imaging object. RF energy is applied to the imaging object. The RF energy includes a plurality of angular precession frequencies simultaneously applied to correspond to a respective plurality of selected slices of the imaging object. A corresponding plurality of nuclear magnetic resonance signals emitted by the imaging object are simultaneously detected. The nuclear magnetic resonance signals are processed to provide diagnostic information related to individual ones of the plurality of selected slices. In this way, multiple slices are excited and sampled simultaneously. The RF energy can be applied by applying RF energy to the imaging object according to a fast-spin echo technique and subsequently applying RF energy to the imaging object according to a driven equilibrium technique.

The invention discloses a website security detection system and method based on full flow, which can more comprehensively cover the security test of a fast iterative WEB project, can discover newly added vulnerabilities of the system in time and can improve the security of a WEB system. The technical scheme is as follows: according to the system and the method provided by the invention, the problem of insufficient security detection vulnerability coverage rate frequently encountered by an Internet company in a WEB development process is taken as a starting point, safety scanning is carried outby combining active scanning and passive scanning latitudes, and active flow and passive flow of a website are covered, so that newly-added vulnerabilities of the system are discovered in time, and the safety of the WEB system is improved.

The invention relates to a method for selecting a scanning area from multiple single areas based on a pathological section scanning device. Recognition procedures are arranged in the pathological section scanning device. The method includes the steps: S1 loading a pathological section; S2 previewing the pathological section to obtain a previewing image; S3 automatically recognizing the previewingimage by the recognition procedures, and recognizing an organization area in the previewing image; S4 labeling the organization area through a preset labeling method to obtain corresponding markers; S5 scanning the markers to obtain a scanning result. The method has the advantages that the method is freer and more flexible, one or a plurality of scanning areas can be defined and selected, an actual needed scanning portion is only scanned, blank area scanning is decreased, uninterested area reading time is shortened, storage space is reduced, storage cost is reduced, the scanning areas are separately selected, and the whole scanning area is the sum of all the separately selected scanning areas.

Disclosed is a method for decoding video, comprising: determining a scan area containing all of effective transform coefficients in a current block; scanning information on the transform coefficientsin the scan area according to a predetermined scan order; performing binary arithmetic decoding on the basis of information on the scanned transform coefficients to generate binary arithmetic decodedinformation; performing inverse binarization on the binary arithmetic decoded information to obtain the information on the transform coefficients of the current block; performing inverse quantizationand inverse transform on the basis of the information on the transform coefficients of the current block to generate a residual block of the current block; and restoring the current block on the basisof the generated residual block. According to the disclosed video decoding method, the binary arithmetic decoding may be performed by using a context model determined on the basis of at least one ofthe size and the shape of the current block.

The invention provides a method and device for assuring adjacent area base station scanning type for a moving terminal, wherein the method for assuring adjacent area base station scanning type of a moving terminal end comprises the following steps: selecting a scanning type with highest priority level and a scanning type with lowest priority level from a plurality of scanning types according to the supporting condition of the moving terminal and a service base station to a plurality of scanning types, and assuring the scanning types of the adjacent base station according to the relative information of last scanning adjacent base station of the moving terminal and the scanning type with highest priority level and the scanning type with lowest priority level. The invention solves the problems that the moving terminal how to set adjacent area scanning type in the scanning request, which can reduce unnecessary scanning and correlation process according to actual condition, improve terminal scanning efficiency, and provides accurate and high-efficiency support for future switching when the base station rear stage network resource utilization ration is improved and is used as a switching preprocessing process.

The invention relates to the technical field of three-dimensional model reuse, in particular to a mining method based on a common structure of a three-dimensional assembly model. The method comprisesthe following steps of: firstly, keeping assembly characteristic attribute information, simplifying non-assembly characteristic attribute information and forming an attribute assembly characteristic adjacency graph on the basis of an attribute adjacency graph of each part of the three-dimensional assembly model; secondly, combining the attribute assembly characteristic adjacency graphs of the parts to form a three-dimensional assembly model attribute adjacency graph based on the assembly relationship among the parts of the three-dimensional assembly model; and finally, extracting a common structure of the three-dimensional assembly model through a frequent sub-graph mining algorithm. According to the method, the accuracy and design efficiency of product design and manufacturing can be improved. The flexibility of information reuse of the three-dimensional assembly model is improved. The mining and the reuse of related information resources by product design and manufacturing enterprises are effectively improved.

A method of packaging a semiconductor device is provided. The method includes applying an insulative material across only a portion of at least two of a plurality of conductors providing interconnection between elements in the semiconductor device. The method also includes encapsulating the conductors and elements, thereby packaging the semiconductor device.

The invention discloses a Hadoop-based big data association rule mining method, which comprises the following steps of: firstly, inputting a big data set to be mined, and partitioning the big data set; then, using a two-stage MapReduce process to complete a mining task of association rules in the big data set; and finally, evaluating the frequent item set by using the kulczynski measurement and the imbalance ratio, and eliminating the frequent item set which does not meet the threshold requirements of the kulczynski measurement and the imbalance ratio, so as to ensure that the mined frequent pattern has positive correlation. According to the method disclosed by the invention, great memory and I / O consumption in a one-stage MapReduce process and low efficiency in a multi-stage MapReduce process are avoided. According to the method, the number of candidate item sets is reduced. The support degree of the candidate item sets is quickly obtained by utilizing the characteristics of the crosslinked list. A database does not need to be scanned for multiple times. The positive correlation of the mined item sets can be ensured. The method can be applied to actual decisions.

The invention discloses a rapid roaming method and a system, which relate to the technical field of wireless roaming, and aims to reduce roaming tables of a whole wireless network or uncontrollable roaming tables, provide a roaming table with high service quality for a client and reduce scanning of the client on a whole channel. When roaming occurs, the client initiates reconnection with the APs in the available roaming tables and switches to the APs in the available roaming tables, and as the authentication information of the client is synchronized to the target AP, AP switching can be completed with low delay. The APs of which the indexes such as the load and the time delay meet the set conditions are screened out from the surrounding AP list to generate the available roaming table, so that the load balance of the whole wireless network can be realized, and the usability of the wireless network and the usability of the client reach a balance state.

The invention provides a method for displaying a vector image. The method for displaying the vector image comprises the steps of (1) converting the input vector image into a binary image; (2) identifying a target boundary in the binary image; (3) eroding the binary image by using the target boundary as the edge, and obtaining a filling area; (4) filling the filling area, and displaying the vector image. The invention further provides a system for displaying the vector image. The display speed of the vector image can be remarkably increased.

The invention relates to a method, device and equipment for processing an image. The method for processing the image is applied to medical equipment. The method for processing the image comprises thesteps that whether a scanning position of the medical equipment is changed or not is detected, when the scanning position of the medical equipment is changed, according to current scanning position information of the medical equipment, a current exposure area contour corresponding to the current scanning position in the preset medical image is determined, and the preset medical image is an image obtained by performing scanning and exposure treatment on a detection object when the medical equipment is at the preset scanning position; and in the preset medical image, the current exposure area contour and a preset exposure area contour corresponding to the preset scanning position are simultaneously displayed, so that a doctor quickly locates the lesion by viewing the current exposure area contour in the preset medical image and the preset exposure area contour, the number of scanning and exposure treatment is reduced, the physical damage to the doctor and patient caused by the radiationused by the medical equipment is reduced.

The invention belongs to the technical field of drilling of soil layers or rocks, and provides an advanced grouting reinforcement construction method in a foundation hole of an earth pressure balance shield underneath pass building. The method comprises the following steps that: a shield tunneling machine is stopped in a position, with a horizontal distance of 12m from a middle shield grouting hole, in a reinforcement area; a grabbing head of a pipe piece assembly machine of the shield tunneling machine is rotated to the bottom of the shield tunneling machine, and a drilling machine is mounted on the pipe piece assembly machine; facing to a tunnel face of the foundation hole, the drilling machine is used for drilling holes in the tunnel face and embedding sleeve valve pipes, and shield tail sealing grease is adopted to block reserved grouting holes; after the sleeve valve pipes are embedded in all the drilled holes, an advanced grouting system of the shield tunneling machine is used for synchronously grouting all the sleeve valve pipes; and after all the drilled holes are grouted by 1 hour and slurry is solidified, the shield tunneling machine is forwards pushed by 12m for secondary circular grouting until the reinforcement area is totally finished.

The invention belongs to the technical field of detection, and particularly relates to a building structure and surface abnormal change detection method based on micro-motion attribute laser detection. The method comprises the following multiple steps of deploying an all-fiber coherent laser scanning detection system at a proper position of a detected object; selecting working parameters of the detection system according to actual task requirements and surrounding environment characteristics; setting parameters such as a detection range, a scanning path, a scanning step and scanning dwell timeof each point in a scanning system according to a building to be detected; scanning and detecting a target, receiving an echo signal, analyzing and processing the echo signal, and calculating the vibration amplitude and the vibration frequency of each scanning point; according to the calculated vibration parameters of each scanning point, generating vibration amplitude and vibration frequency images corresponding to the target, and judging whether the surface of a structure is abnormal or not. The building structure and surface abnormal change detection method based on micro-motion attributelaser detection belongs to nondestructive non-contact detection, and vibration distribution images with different resolutions can be obtained according to needs.

The embodiment of the invention discloses a frequent item set mining method based on MapReduce and an array. The frequent item set mining method comprises the following steps: converting a data set into a two-dimensional array; decomposing the two-dimensional array into a plurality of two-dimensional sub-arrays; allocating the plurality of two-dimensional sub-arrays to at least two nodes which execute frequent item set mining tasks in parallel, wherein each node mines a sub-frequent item set corresponding to the two-dimensional sub-array and retains a non-frequent item set of each node; and counting and summarizing the sub-frequent item sets and combining the non-frequent item sets to obtain a frequent item set of the data set. According to the method, the database is only scanned once andconverted into the two-dimensional array, scanning of the database is reduced, and the I / O time is shortened; meanwhile, the array is creatively decomposed into more sub-arrays through a horizontal division method; a MapReduce programming model of a Hadoop platform is used, and a method of processing two-dimensional subarrays in parallel is adopted, that is, frequent item set mining is performedon the subarrays in parallel at a plurality of nodes, so that the method has relatively good acceleration ratio and expandability, and is suitable for mining frequent item sets for big data sets.

Embodiments of the invention disclose an object storage method and apparatus, an electronic device and a storage medium. The method comprises the steps of obtaining current attribute information and a file name of a file; querying a local database according to the file name, and determining an update state of current attribute information of the file; when it is determined that the current attribute information changes according to the updating state, the file is partitioned, and the index of each partition is determined; and querying a local database according to the index of each block, and uploading the changed blocks to an object storage for backup. When it is determined that the file attribute information changes, the file is divided into blocks, and only the changed blocks are uploaded to the object storage for backup, so that the scanning and access times of the object storage are reduced, bandwidth waste and resource occupation for transmitting repeated data are reduced, and the backup efficiency is improved.

The embodiment of the invention provides a host scanning method and device. The method comprises the steps of acquiring address information of an online host in a preset network segment; determining a target host from the online hosts by adopting the address information of the online hosts; and scanning the target host. In the embodiment of the invention, the target host required to be scanned is determined by determining the online host in the intranet and adopting the address information of the online host, for example, the target host is scanned by taking other hosts except the high-risk host as the target hosts. By determining the high-risk host in the online hosts, the high-risk host is not scanned, so that the risk of network paralysis can be avoided. Compared with scanning of all the hosts in the intranet, invalid scanning can be reduced, the scanning time is greatly shortened, and the scanning efficiency is improved.

The invention relates to an acoustic radiation force pulse elastography method based on displacement attenuation characteristics. The measurement system of the method mainly includes a signal generator, an ultrasonic pulse transceiver, a radio frequency power amplifier, an excitation probe, a tracking probe, a data acquisition and processing system and a step. Into the motor, where the excitation probe is used to generate acoustic radiation force and excite the medium to generate displacement response. The excitation signal of the probe is generated by the signal generator and amplified by the radio frequency power amplifier; the tracking probe is excited by the ultrasonic pulse transceiver and used to receive the sound The radio frequency echo signals before and after the radiation force excitation are collected and processed by the data acquisition and processing system, the displacement response of the medium due to the acoustic radiation force excitation is calculated, and the elastic characteristics of the medium are evaluated; the stepping motor is used to track the probe Move to realize the detection of the lateral direction of the tracking probe and reconstruct the elastic distribution of the measurement area.

The invention relates to the technical field of computers, and discloses a hierarchical data monitoring system and monitoring method so as to overcome the defect of occupation of IO and CPU resources of a database caused by frequent data access of a website and other access terminals. The hierarchical data monitoring system comprises a first monitoring computer and a second monitoring computer, wherein the first monitoring computer is provided with a first central processing unit, and a first database or a first memorizer connected with the first central processing unit and used for storing original data; the second monitoring computer is provided with a second central processing unit, and a second memorizer connected with the second central processing unit and used for storing data of a monitoring table; the second central processing unit and the first central processing unit are connected with an external access terminal; the first central processing unit is connected with the second memorizer so as to dynamically update data of the monitoring table via instructions of the first central processing unit.

A system for determining surface topography of a three-dimensional structure is provided. The system can include an illumination unit configured to output a two-dimensional array of light beams each comprising a plurality of wavelengths. An optical assembly can focus the plurality of wavelengths of each light beam to a plurality of focal lengths so as to simultaneously illuminate the structure over a two-dimensional field of view. A detector and a processor are used to generate data representative of the surface topography of the three-dimensional structure based on the measured characteristics of the light reflected from the structure.

The invention relates to an acoustic radiation force pulse elastic imaging method based on a displacement attenuation characteristic. A measurement system of the method mainly comprises a signal generator, an ultrasonic pulse transceiver, a radio frequency power amplifier, an excitation probe, a tracking probe, a data acquisition and processing system and a stepping motor; the excitation probe isused for generating acoustic radiation force and exciting a medium to generate displacement response, and an excitation signal of the probe is generated by the signal generator and is amplified by theradio frequency power amplifier; the tracking probe is excited by the ultrasonic pulse transceiver, and is used for receiving radio frequency echo signals before and after acoustic radiation force excitation, the data acquisition and processing system is used for acquiring and processing the echo signals, calculating displacement response of the medium due to acoustic radiation force excitation,and evaluating elastic characteristics of the medium; and the stepping motor is used for moving the tracking probe, so that the tracking probe detects the lateral direction, and the elastic distribution of a measurement area is reconstructed.