149results about How to "Avoid data transfer" patented technology

A pipeline processing system and an information processing apparatus not malfunctioning even if there is a pipeline stage in which data is not correctly written, including a plurality of processing circuits for applying predetermined processing to a plurality of data blocks; memories accessed by any circuit of a plurality of processing circuits, encryptor for encrypting the data based on key information set for each series of pipeline processings continuously processed when storing processing results of the circuits in the memories; and decoders for decoding data based on set information used for the encrypting when reading the data encrypted and stored in the memories.

A method and apparatus for data recovery in a system involving a first data store acting as a standard device and a physical moving mirror data store that operates as moving mirror with a first mode to be synchronized and in a second, isolated mode. In response to a command to establish a third or protected restore operating mode, the data to be transferred in response to that command is identified. A restoration procedure copies data from the second data store to the first store to recover any data that may have been corrupted in the second data store. An update procedure acts on the restored data concurrently with the restoration procedure.

The invention discloses an implementation method for three-dimensional figure render based on a cloud computing framework. The implementation method includes the steps that existing scene description is uploaded to a scene root explorer of a cloud service system, a model needed by a scene is analyzed by the scene root explorer, and the model is uploaded from a memory system. The belonging model is packaged, a scene object is set, a render instruction supported by a specific renderer is generated, and the render instruction is packed and is sent to a render system. After the render instruction returns to a render picture, the picture is transmitted to an application layer and is displayed. A user interacts with the application layer, the application layer captures action events, and the action events are transmitted to a cloud service layer according to a protocol. After the cloud service layer receives the action events, a scene is automatically adjusted on the background of the cloud service layer according to new action parameters. Format conversion of packaging and render instruction is carried out for a second time, then the action events are transmitted to the render system and are rendered by the render system, and finally the action events are displayed on the application layer anew. Therefore, interactive edit and display of a three-dimensional scene are achieved.

The invention discloses a distributed type power supply zone branch circuit three-phase load current balance monitoring method and device and belongs to the field of power supply and distribution devices. At least one three-phase load current balance main controller is arranged, load current signals of each phase circuit in each branch loop are collected, according to the obtained load current signals of each phase circuit, the three-phase current unbalance rate or the mean value of the three-phase current unbalance rate of each branch loop is computed, and the unbalance situation of three-phase load current of each branch loop is judged. The magnitude of load current in each unit meter box of each branch loop is collected, and the phase of unit meter box load which needs to be adjusted is determined. According to the three-phase load current unbalance situation of a certain branch, a control instruction is issued to an automatic phase-changing switch in a unit meter box corresponding to the branch loop, converting of load phases is carried out, adjusting of three-phase load current balance of each branch loop on the low-voltage side of a distribution transformer is achieved, and the real balance of distribution transformer low-voltage side main loop three-phase load current is guaranteed.

This invention constructs within the LAN a private area network (PAN) which is configured by terminal devices (personal computers and the like) of a specific group, is hardly influenced by the LAN traffic, and has high security. For this purpose, a PAN server which manages the communication route between specific terminals is installed within the LAN. The PAN server sets the communication route of each terminal device as label information, and causes switches and terminals to set pieces of label information generated for them. When the frame of data from a given port of each connection switch contains information representing PAN communication, the connection switch outputs the data to only a port specified by routing label information described in the frame.

A method and apparatus for data recovery in a system involving a first data store acting as a standard device and a physical moving mirror data store that operates as moving mirror with a first mode to be synchronized and in a second, isolated mode. In response to a command to establish a third or protected restore operating mode, the data to be transferred in response to that command is identified. A restoration procedure copies data from the second data store to the first store to recover any data that may have been corrupted in the second data store. An update procedure acts on the restored data concurrently with the restoration procedure.

A GALS-based network-on-chip (NoC) includes a plurality of asynchronous first-in first-out (FIFO) input buffers connected to a plurality of IPs that asynchronously receive data; a plurality of asynchronous FIFO output buffers connected to the plurality of IPs asynchronously output data; and a router for forwarding data input to the plurality of asynchronous FIFO input buffers, to an asynchronous FIFO output buffer, among the plurality of asynchronous FIFO output buffers, which is connected to an IP to which the data is destined. Accordingly, the system-on-chip (SoC) adopting the GALS design scheme can transfer data via the NoC between the IPs which are in time zones having different clocks in the centralized switching system, thereby avoiding the need for a point-to-point system.

A wireless secure authentication system for portable memory storage devices to prevent unauthorized transfer of stored data. The system includes a memory device such as a USB storage device that is capable of data storage. A wireless receiver and / or transmitter on the device receives and / or transmits an external signal from and / or to an external remote device, such as RFID card, bluetooth receiver, cellular telephone or any other wireless device. The device does not allow data to be accessed in the memory of the device until it receives an appropriate signal from the external device. Once the appropriate signal has been received, data transfer is allowed. In the event that the signal is lost, the data transfer is terminated and access to the data is not permitted. Examples of the system includes a USB memory device that requires a RFID card with an encrypted signal to be within a dedicated perimeter from the device.

The invention relates to a static security analysis double-layer parallel method based on a GPU-CUP heterogeneous computing platform. The method comprises the following steps: initializing data of a power system, and setting K anticipated faults according to actual demands; extracting n anticipated faults, wherein the n belongs to the K; allocating multiple groups of threads for the n anticipated faults by utilizing a GPU; carrying out load flow calculation for each thread group under each anticipated fault, wherein each group of threads comprise one iteration in multiple groups of load flow calculation; checking the convergence condition of each example after each iteration is over; and if the load flow calculation converges under a certain thread group, extracting the next new anticipated fault, and executing the load flow calculation until finishing all of the fault calculation. The algorithm can realize synchronous calculation of the plurality of anticipated faults in the single GPU, and can carry out parallel processing on computation tasks corresponding to the nodes of in the same layer of an elimination tree, thereby preventing waste of GPU computing resources and improving utilization efficiency of the GPU.

The invention discloses a novel positive sequence impedance differential protection method of a microgrid. The method comprises the following steps of acquiring a three-phase current and a three-phase voltage in real time, and further calculating positive sequence impedance at a protection installation position; carrying out calculation of action impedance and braking impedance; judging whether a differential protection region is a fault section or not by a local-side protection device after receiving positive sequence impedance information of an opposite side of the differential protection region through a communication network; and additionally arranging a phase-comparison distance component in a detection blind region subjected to the positive sequence impedance differential protection for identifying a three-phase metal fault. The method can be suitably used for two running states of grid connection and island of the microgrid, the influence of through current and large transition resistance on fault detection during a fault is fully considered, moreover, the method is implemented without the assistance of synchronous signal acquisition and a fault component, the complicated network structure of the microgrid and the problem brought to microgrid protection by variable running states are effectively solved, and the protection selectivity and reliability are ensured.

The invention relates to a heat-machinery-abrasion coupling analysis numerical simulation method based on a finite element. The method includes the following steps: establishing a finite element model; discretizing a heat-machinery-abrasion coupling process; performing heat-machinery coupling analysis by commercial finite element software; outputting a temperature field of a contact pair and a contact pressure field; calculating abrasion loss, and determining abrasion direction; outputting node abrasion loss and abrasion direction; correcting node displacement, and updating the finite element model; judging whether all the increment steps are completed or not, if not, returning to a loop operation until all the increment steps are completed, and if yes, outputting contact pressure field distribution, temperature field distribution and abrasion loss distribution which correspond to contract nodes of all the increment steps. The commercial finite element software is taken as a platform, so that the method is simple and reliable; calculation of the abrasion loss is completed inside the finite element software, so that the method is rapid and efficient. The method can be widely applied to structural analysis relating to dry sliding friction.

The invention discloses a method for improving an erasure code based storage cluster recovery performance. The method comprises that a reconfiguration control node sends reconfiguration read requests to reconfiguration source nodes and sends reconfiguration write requests to reconfiguration destination nodes simultaneously, all reconfiguration source nodes implement reconfiguration read optimization according to reconfiguration read requests, all reconfiguration destination nodes implement reconfiguration write optimization according to reconfiguration write requests simultaneously, all reconfiguration source nodes read data participating in reconfiguration of this time from a disc respectively and divide the data into a plurality of data blocks respectively, all reconfiguration source nodes transmit the plurality of data blocks to corresponding reconfiguration destination nodes simultaneously through networks respectively, all reconfiguration destination nodes adopt a reconfiguration algorithm to reconfigure received data blocks coming from all reconfiguration source nodes respectively, and all reconfiguration destination nodes return data blocks obtained through reconfiguration to a client side respectively. By the aid of the method, the problem of transmission of a large amount of additional data caused by existing centralized decoding methods can be solved.

The patent for invention relates to an internal and external network physical isolation data transmission device, comprising a physical isolation data transmission device box body, an image display device and an image identification device, wherein the transmission device box body is divided into an external network identification area and an internal network identification area, the two-dimensional code data information is displayed by using a cross display screen, an external network computer is connected with a camera, and the camera directly faces a display of the internal network to identify the two-dimensional code data transmitted by the internal network; the internal network computer is connected with the camera, the camera directly faces the display of the external network to identify the two-dimensional code data transmitted by the external network, and both the internal and external network computers are provided with a two-dimensional code data management software, a common data standard interface and transmission instructions; texts and pictures are subjected to automatic information preprocessing and coding, and then are subjected to image identification through the display to achieve uplink TX and downlink RX data transmission, and are parsed into data to store, add, delete and edit the instructions; and values are fed back after the data transmission is successful.

This invention constructs within the LAN a private area network (PAN) which is configured by terminal devices (personal computers and the like) of a specific group, is hardly influenced by the LAN traffic, and has high security. For this purpose, a PAN server which manages the communication route between specific terminals is installed within the LAN. The PAN server sets the communication route of each terminal device as label information, and causes switches and terminals to set pieces of label information generated for them. When the frame of data from a given port of each connection switch contains information representing PAN communication, the connection switch outputs the data to only a port specified by routing label information described in the frame.

The embodiment of the invention discloses a data transmit method, which comprises calculating transmission delay when data waiting to be transmitted is transmitted to a receiving terminal; and when the transmission delay is smaller than minimum delay threshold, transmitting the data waiting to be transmitted, when the transmission delay is larger than maximum delay threshold, discarding the data waiting to be transmitted, and when the transmission delay is between the minimum delay threshold and the maximum delay threshold, treating the data waiting to be transmitted by adopting a probability packet loss method. Accordingly, the embodiment of the invention also discloses a data treatment device and a communication system, which can effectively reduce the transmission delay of business data and satisfy the business requirement of low delay.

An embedded memory on an integrated circuit chip is capable of being isolated from other on chip and off chip circuitry during power failure modes on the integrated circuit chip. The embedded memory preferably has its own external power supply. When power on chip fails or falls below a threshold level, input to and output from the embedded memory is prohibited by CMOS isolation cells. The CMOS isolation cells are controlled by enable signals and the power level of other power supplies within the integrated circuit.

The invention discloses a commodity recommendation method and system, which relate to the computer technical field. One embodiment of the method includes: acquiring a user image to obtain user characteristic information; according to the characteristic information of the user, in the preset commodity classification model, matching the recommended commodity category information for the user; sending the recommended commodity category information of the user to a service terminal, wherein the service terminal inquires the recommended information of the recommended commodity according to the recommended commodity category information and sends the recommended information of the recommended commodity; receiving and displaying the recommendation information of the recommended commodity sent bythe server terminal. The embodiment can perform personalized commodity display for users and realize precise marketing.

The invention belongs to the field of robots, and particularly relates to a pipeline panoramic detection robot. The robot comprises a machine body, wherein a rotary shooting mechanism is fixedly arranged at the left end of the machine body, supporting mechanisms are symmetrically and fixedly arranged on the left side and the right side of the machine body, and a tensioning driving mechanism is fixedly arranged at the middle section of the machine body. The robot is mainly composed of the rotary shooting mechanism, the supporting mechanisms and the tensioning driving mechanism, after the robotenters a pipeline, the supporting mechanisms support the whole robot, three stepping motors are arranged on driving wheels to synchronously drive the driving wheels to travel, when the robot moves toa welding seam position, the robot stops travelling, two image acquisition cameras which are distributed at 180 degrees are used for collecting 12 pictures in a rotating mode, when the robot leaves the pipeline, the tensioning driving mechanism automatically terminates tensioning and moves, so that detection on the pipeline is comprehensive, the detection effect is ensured, the robot can be adjusted to adapt to pipelines with different pipe diameters, so that the robot is convenient to use and high in applicability and can be used in various occasions.

For an electronic apparatus in which data is transferred between a plurality of processing devices and a memory, a technique is provided which prevents the data transfer from being restricted and allows the processing devices to operate efficiently. The order of priorities of data transfer operations through channels is changed on the basis of a relation between thresholds and the amounts of data remaining respectively in FIFO buffers. This prevents the FIFO buffers from becoming empty of data, or from being filled up with data, which allows the devices to operate efficiently.

The invention discloses an image data processing method and device. The method comprises that a target image is obtained, a monochromatic component image corresponding to the target image is generated; the target image is divided into to-be-identified areas according to angular points and end points of each monochromatic component image; and on the basis of a classifier, a character identificationprobability corresponding to each to-be-identified area is calculated, and a character area is identified from each to-be-identified area according to the character identification probability. Via the method and device, the cost of identifying the character areas can be reduced, and consumption of network flow can be reduced.

The invention discloses a dustproof server cabinet for protecting a data port of server equipment. A fixed plate is fixedly mounted at the top end of a movable plate through a connecting rod; a plurality of compression cylinders are arranged at the top end of the fixed plate at equal intervals through bolts; the top end of a damping block is fixedly connected with a dustproof plate through a bolt;a plurality of dustproof holes are formed in the dustproof plate at equal intervals; a plurality of brush mounting plates are mounted at the top end of the dustproof plate at equal intervals; a brushfor removing dust is mounted on the brush mounting plate; the movable plate drives the fixed plate to move up and down in the direction of a linear guide rail; the fixed plate drives the dustproof plate to move up and down, so as to drive a hairbrush to move up and down to remove dust from a server, thereby avoiding the blockage and data transmission caused by dust accumulation on the data port of the server, prolonging the service life of the server, and improving the data transmission quality of the server. Meanwhile, when the brush removes dust, an acting force received by the brush is transmitted to a compression column through the dustproof plate, and the compression column achieves a damping function on the dustproof plate through the elastic deformation capacity of the compressioncolumn.

The present application provides a topology switching method, device, system and storage medium based on a synchronous link. The method is applied to a first central slave device. A first plurality offirst synchronous links exist between the first central slave device and a master device. A first communication link exists between the first central slave device and a peripheral slave device. The method comprises: the first central slave device sends the first synchronous information to the peripheral slave device through the first communication link with the peripheral slave device, wherein the first synchronous information includes a link parameter of the first synchronous link so that the peripheral slave device starts data transmission with the master device according to the link parameter of the first synchronous link; and before the peripheral slave device starts the data transmission with the master device according to the link parameter of the first synchronous information, thefirst center slave device stops the data transmission with the master device through the first synchronous link. Thus, the switching efficiency of the synchronous link topology is improved.

In data transfer in isochronous mode using an IEEE1394 serial bus, the data transfer rate is guaranteed, but data transfer is disabled if the number of channels is insufficient. An already assigned channel is released by lowering the data transfer rate currently using that channel, and the released channel is assigned to new data transfer, thus allowing the new data transfer.

The invention relates to the technical field of computers, and particularly relates to a USB input-output interface for computer host data transmission. The interior of a shell is connected with a connecting plug in a clamping manner, a sliding rail is fixedly connected into the shell, a baffle is slidably connected into the sliding rail, a support is fixedly connected to the left side of the sliding rail, a pressing plate is rotatably connected to the left side of the support, a limiting hole is formed in the bottom end of the sliding rail, a fixing frame is slidably connected to the top endof the sliding rail, a buffer plate is fixedly connected to the right side of the fixing frame, and a limiting block is slidably connected to the left side of the fixing frame. When the bottom end ofthe pressing plate is pressed to the leftmost side by a bayonet lock, the push force of the push rod to the limiting block is stopped, the limiting block is clamped in the limiting groove, the bufferplate is compressed at the moment, the USB interface is firmly fixed in the shell, and data loss caused by data transmission failure due to poor contact between the plug interface and the USB interface when the USB interface is loosened during data transmission is prevented.