280results about How to "Reduce seek time" patented technology

A data storage system including a primary data storage device and a backup data storage device stores data with enhanced performance. The primary data storage device has a primary data storage device memory for holding data, and the backup data storage device has a backup volatile memory, a backup non-volatile memory, and a processor. The backup storage device processor causes a copy of data provided to the primary data storage device to be provided to the backup data storage device volatile memory, and in the event of a power interruption moves the data from the backup volatile memory to the backup non-volatile memory. In such a manner, data stored at the backup data storage device is not lost in the event of a power interruption. The backup data storage device further includes a backup power source such as a capacitor, a battery, or any other suitable power source, and upon detection of a power interruption, switches to the backup power source and receives power from the backup power source while moving the data from the backup volatile memory to the backup non-volatile memory.

The invention relates to a method for logistics dispensing center work task processing and scheduling. The method comprises steps that, a first step, according to correlation of items in historical orders, storage location assigning for in-stockroom items is carried out; a second step, batch setting for out-stockroom orders in an order pool is carried out; a third step, sorter assignment for the out-stockroom orders after batch setting is carried out; and a fourth step, optimal walking paths are set for sorters. According to the method, storage optimization for items of new orders is realized according to a shipment trend of the historical orders, sorted task assigning for the sorters is carried out, optimization of the walking paths of the sorters is carried out, complex sorting work is made to be simple, work intensity is reduced, the work flow is standardized, and work efficiency is improved.

The invention relates to a video detecting data storage method and relative system, which uses network to connect the data processor and the storage device. Wherein, said method comprises: dividing the video data into several data blocks and sending the data blocks to the storage device to be stored; reading stored data block to recover the video data; the data processor divides the stored data into several data blocks in same size, and assembles several data blocks into the data units in the same size; building index for each data unit; according to the index, reading the data block of storage device to recover the video data. The inventive video detecting data processor will directly process block operation on the storage device, to realize high-efficiency access to the video data of video detecting network, to improve the reliability and application flexibility of video data.

A disk drive includes a disk, a head, a coarse actuator, a microactuator, and a servo controller. The microactuator positions the head relative to the disk. The coarse actuator positions the microactuator and the head relative to the disk. The servo controller controls the microactuator in accordance with a microactuator feedforward control signal that is provided by the servo controller based on a plurality of microactuator feedforward values. The servo controller tunes at least one microactuator feedforward value of the plurality of microactuator feedforward values. The servo controller scales the microactuator feedforward control signal in accordance with a microactuator feedforward gain, and the servo controller adjusts the microactuator feedforward gain based on a position error signal that is determined during a seek operation.

The invention discloses local file system-based small file reading and writing method and system. The method comprises the following steps: aggregating small files belonging to a same directory in a local file system into N large files, wherein the N is a positive integer; generating a corresponding index file for each directory one to one, wherein the index files comprise names of all the small files in the directories, names of the large files where the small files are arranged and positions of the small files in the large files; receiving small file operating instructions comprising path names of the small files and determining the index files corresponding to the directories which the small files belong to according to the small file operating instructions, wherein the operations comprise reading and / or writing; modifying the names and the positions of the small files in the path names of the small file operating instructions to the names of the large files where the small files are arranged and the positions of the small files in the large files according to the determined index files; and executing the corresponding operations on the large files where the small file are arranged according to the modified instructions. By means of the method and the system which are disclosed by the invention, the small file operating efficiency is increased.

The present invention provides a method for enhancing discontinued data storaging efficiency of addresses writing. In this method, a Cache is between a controller and a physical disk in RAID, the controller writes the opening memory data of different memory regions corresponding to the writing address, that is discontinued data of addresses writing into the cache, then the opening memory data of the different memory regions corresponding to the writing address in the cache is flushed to corresponding memory regions not at all once, and each time only flushes the opening memory data of the storage region which identical to the writing address, in other words, writing address continuous data to greatly reduce seek time of physical disk to enhance the data storage efficiency. The invention also provides a storage device for improving writing address discontinued data storage efficiency.

A portable rescue device and a method for locating, by means of a first rescue device set in a search mode, a second rescue device set in a distress mode. In the method, a distress signal carrying a device identification is received from said second rescue device. A first bearing and a second bearing to the second rescue device are obtained. The first and second bearings are taken from a first and a second position, respectively. A distance between these positions is determined. A current distance and a current bearing to the second rescue device are determined on basis of the first and second bearings and the distance. The current bearing and the current distance are communicated to a user of the first rescue device. The portable rescue device is used for performing the method and for that purpose it includes a first communication unit for distress signal transmission and reception; a compass; a processor; a user interface; and a mode switch for switching between a search mode and a distress signal mode. The first communication device has an antenna structure that provides directional capability.

The invention discloses a commodity purchasing system and method. The commodity purchasing method comprises the following steps of: (S101) reading a target commodity name input by a user and generating a commodity list; (S102) looking for commodity information, which matches with the target commodity name in the commodity list, from a commodity database; and (S103) generating a first display page including all commodity information obtained through matching. The commodity purchasing system comprises a first unit, a second unit and a third unit, wherein the first unit is used for reading the target commodity name input by the user and generating the commodity list; the second unit is used for looking for the commodity information, which matches with the target commodity name in the commodity list, from the commodity database; and the third unit is used for generating the first display page including all commodity information obtained through matching. According to the invention, through simultaneously providing retrieval information of multiple different commodities to user, the actions within the user retrieval time are reduced and the purchasing frequency of the user in purchasing fast-moving consumer goods and other commodities is increased.

A method, system and computer-usable medium are disclosed for reordering User Data Segment (UDS) lists to reduce seek times when accessing data stored on tape media. A host application sends a list of UDSs to a target tape drive and requests the tape drive to reorder the list to provide better performance. An ordered list of target User data Segments to retrieve from a target tape media is received. Information related to the location of each UDS on the target media is processed to determine its corresponding physical position on the tape media. The resulting physical positions are then processed to generate a reordered UDS list, where the order of the User Data Segments is reordered according to their physical location on the target tape media. The reordered list of User Data Segments is then used to perform seek, reposition and read operations to read User Data Segments from the tape media.

The present invention includes a Command Queuing Engine (CQE) that is a firmware-assist block which processes some of the firmware tasks related to command and context management preferably for SCSI. When enabled, CQE will decode SCSI commands as they arrive, and determine if DMA contexts can be automatically configured and started to transfer the data for those commands. CQE can also program DMA contexts to automatically return status information either after the disk has completed a transfer (as in non-cached writes) or after the DMA transfer is completed (as in reads or cached writes). CQE also utilizes a buffer-based linked-list to queue the SCSI commands as they arrive for future DMA context configuration. The present invention provides automated recognition and linking of commands belonging to a common thread, i.e., are sequential. The present invention also provides extensive thread boundary information and flexible firmware control for reordering commands. Automatic TE entry generation and storage to buffer memory, and automatic TE retrieval from the buffer memory and execution of entire command threads are further features provided by the present invention. As a result, bus command response latency is decreased by reducing the delay for the command to be started and at the end of the data transfer for status to be send. Disk efficiency is increased by reducing the latency to back-fill or empty a buffer memory segment of data that will be transferred. Furthermore, the present invention is a low-cost trade-off between hardware and firmware functionality.

A disk drive having a control system which adjusts seek velocity profiles is disclosed. The seek velocity profile is adjusted based on the direction of the seek and the location of the target track. If the seek is away from the ramp, the seek velocity profile is not adjusted. If the seek is toward the ramp, the control system determines the location of the target track. If the target track is within a predefined distance of the ramp, and the transducer velocity exceeds a predetermined velocity, the seek velocity profile is adjusted to limit the deceleration current. The adjustment may be a preset factor, or may be a variable factor depending upon the distance from the target track to the ramp.

The invention relates to a management operation system and method of an intelligent parking lot, and belongs to the field of intelligent hardware of Internet of Things. Parking space ground locks forlicense plate recognition and barrier gates are installed on parking spaces to perform coordinated management, through orderly parking, the flow rate of the parking lot is improved, and the usage rateof parking space resources is improved. The management operation system of the intelligent parking lot is characterized in that the system includes a user terminal, a parking space ground lock terminal, an entrance and exit barrier gate terminal and an operation management platform, wherein the user terminal is a terminal device in which a user can install apps and is used for sending a service request to the operation platform and receiving a feedback result; the parking space ground lock terminal is used for positioning and control of a corresponding parking space, identification of vehicleinformation, and receiving and feeding back parking space information; the entrance and exit barrier gate terminal controls coming-in and going-out vehicles and communicates with the parking space ground lock and operation management platform to feed back information; and the operation service management platform is used for receiving and responding to a request of a user of using a parking space, optimizing allocation of parking space for use, performing charging settlement, detecting the parking space lock state and forming a lease management system with the other terminals.

The invention discloses a virtual machine image management optimization method based on data de-duplication. The specific steps of the virtual machine image management optimization method based on the data de-duplication include that when a virtual machine image is uploaded, a fixed size partitioning method is adopted by a user end to divide an image file into a plurality of data blocks, the size of each data block is the same as the size of a cluster of a local file system, a mini disk (MD) 5 value of each data block is calculated, Socket programming technology is used, a finger print is sent to a server end, the server end searches the finger print and returns the result to the user end, whether the data blocks are sent is judged by the user end according to the result, and the network sources are saved; when the server end searches the finger print, by using a finger print filter and a finger print storage device, the memory usage amount and disk access amount are reduced; when the data are saved, the data blocks are directly stored in a complete cluster, the repetitive job of image renewing and segmentation is eliminated. The virtual machine image management optimization method based on the data de-duplication achieves a kernel mode file system of the online data de-duplication, reduces the disk storage amount and reduces internet consumption.

The invention provides a family affection care system based on an old-age care robot. The system comprises the old-age care robot, a remote terminal and a cloud server. Under the control of a child, the remote terminal sends a go-home-to-see access request to the cloud server through a go-home-to-see request module; a go-home-to-see receiving processing module of the old-age care robot controls the old-age care robot to start an old person seeking function, confirms an old person position through utilization of a voice positioning technology or a face identification technology, then prompts anold person to put through and checks a life condition of the old person through a camera of the old-age care robot; and the go-home-to-see receiving processing module receives character, voice, picture and / or video information sent by the remote terminal and displays the information to the old person and moreover controls the old-age care robot to interact with the old person through utilizationof a voice interaction technology and an image identification technology. According to the system, the interaction is automatically initiated through utilization of the old-age care robot, the child is helped to communicate with the old person effectively through utilization of fragmented time, the life condition of the old person is checked whenever and wherever possible, and the affection company for the old person is realized.

The invention provides a shopping guide system and method based on goods labels and electronic goods shelves. The system comprises the goods labels, the electronic goods shelves, a background system, a shopping guide terminal and a mobile terminal. Firstly, the mobile terminal sends ordering information to the shopping guide terminal, and then the background system locates target commodities according to the goods labels and the electronic goods shelves. The shopping guide system and method based on the goods labels and the electronic goods shelves have the advantages that the electronic goods shelves can automatically recognize stocked commodities without manually recording the commodities one by one like as now; the electronic goods shelves are placed according to the types of the commodities, information of the commodities on the shelves can be conveniently and fast looked up through a display panel; consumers can clearly find accurate positions of required commodities in a supermarket filled with the tall shelves, and the search time is reduced.

The invention discloses an intelligent warehousing sorting system, a goods shelf and an AGV. The intelligent warehousing sorting system comprises a storage goods shelf body, a carrying goods shelf body, the AGV, an upper computer and controller provided with a human-computer interface, wherein the upper computer is connected with the AGV and the controller in a communication mode; and the carryinggoods shelf body comprises a main goods shelf body which is provided with a plurality of first goods stations used for storing goods. The upper computer is in communication connection with the controller and the AGV to monitor the product information (position, quantity and the like) in the whole course, then the resources (the goods shelf and the AGV) can be reasonably distributed, and the warehousing conveying and sorting efficiency is improved. Product partitioning, centralized goods loading and partitioning unloading are formed, modular and regional management and monitoring of the wholewarehousing are achieved, enterprises can conveniently and comprehensively monitor the process from order making to order finishing, data are obtained fast, the manpower, material resource and time cost of the enterprises are reduced, and intelligent and automatic management and monitoring of the warehousing process are facilitated.

A head positioning method and device positions a head which reads a disk-type storage medium at a specified location, and accurately estimates a bias value during settling control. A disk device includes a disk medium, a head, an actuator, and a control circuit, and settling control is performed based on a detected position after coarse control without integral compensation or bias compensation having been performed. The position of the head for a next sample is estimated, and an initial bias value is estimated from the difference between the detected position and the estimated position. This initial bias value is then used to perform settling control together with integral compensation of bias compensation. Since the accurate initial bias value at the start of settling is estimated, it is possible to reduce the time for correcting the shift in the bias during settling control, and greatly reduce the time required for settling control.

A seek minimizing process for use in storage controller of a data storage system is presented. The process collects statistics for physical devices storing mirrored logical volumes. The statistics include utilization and activity level. The process determines from the statistics the top n busiest physical devices. The process evaluates each of the n physical devices for mirror policy adjustment that will result in reduced seek time when the utilization of the physical device is greater than a threshold, for example, 50%.

The invention relates to a positioning system, in particular to a real-time information interaction system capable of displaying accurate positions of interactive two parties or multiple parties and navigation positioning information on an electronic map in real time. The interaction system comprises an internet based network platform server system and positioning terminal devices; and the positioning terminal devices realize interactive exchange of position information through the network platform server system, so that different positioning terminals know real-time positions of other positioning terminals. The real-time information interaction system has the advantages that: the internet is provided with the network platform server system of the interaction system, and the positioning terminals can realize the interactive exchange of the position information between positioning systems through the network platform server system connected with the internet in a wireless mode, including but not limited to WiFi, 2G, 3G, 4G and the like, so that the different positioning terminals know the real-time positions and other related information of the other positioning terminals, and the real-time interconnection of one-to-one or one-to-many positioning terminal devices is realized.

The invention provides an intelligent steel plate warehouse management system. The intelligent steel plate warehouse management system is characterized by comprising a barcode data collection module, a wireless transmission module, a material management module, a pc (personal computer) terminal comprising three-dimensional virtual warehouses, a mobile operating terminal and a lifting device, real-time information matching is performed between the three-dimensional virtual warehouses and actual storage locations, steel plate position changes of the actual storage locations are simulated dynamically, actual storage location changes are displayed through the mobile operating terminal, the mobile operating terminal displays the three-dimensional virtual warehouses in real time, location changes of the three-dimensional virtual warehouse are operated through a touch screen, and actual storage location information is matched with information of the changed three-dimensional virtual warehouses through the lifting device.

A head positioning method and device positions a head which reads disk-type storage medium at a specified location, and accurately estimates estimates a bias value during settling control. A disk device includes a disk medium, a head, an actuator , and a control circuit, settling control is performed based on a detected position after coarse control without integral compensation or bias compensation having been performed. The position of the head for a next sample is estimated, and an initial bias value is estimated from the difference between the detected position and the estimated position. This initial bias value is then used to perform settling control together with integral compensation of bias compensation. Since the accurate initial bias value at the start of settling is estimated, it is possible to reduce the time for correcting the shift in the bias during settling control, and greatly reduce the time required for settling control.

The embodiment of the invention discloses a data storage method and device, which are applied to a terminal. The terminal includes at least one disk. The disk is divided into a plurality of virtual storage segments according to physical addresses, and physical address ranges corresponding to the plurality of virtual storage segments do not coincide. The method includes: receiving a storage request for to-be-stored data, determining a target virtual-storage-segment, which is used for storing the to-be-stored data, according to an identifier of a target file corresponding to the to-be-stored data and information stored in metadata storage segments; obtaining a last storage location of data stored in the target virtual-storage-segment, and determining that the obtained storage location is an initial storage location of the to-be-stored data, and from the initial storage location, starting to store the to-be-stored data. By applying the embodiment of the invention to store the data, seek time is reduced.

The disclosure extends to methods, systems, and computer program products for identifying transaction data from within aggregated data and suggesting additional services based on the transaction data. The disclosure also extends to methods, systems, and computer based products for discovering transaction attributes within a database of aggregated account data including, aggregating and matching financial account attributes between a plurality of accounts in order to provide additional services to account holders.

A data processing apparatus stores continuous area management information which associates head position information of each continuous area on the storage medium with a continuous size thereof. The data processing apparatus specifies position information of a data read position corresponding to a specific position with reference to the continuous area management information in response to a data read request from the specific position in information data, and reads out some or all of the information data from a read position on the storage medium corresponding to the specified position information.

The invention discloses a startup method for a Linux operation system. The startup method is characterized by comprising the following steps: starting up an operation system; judging whether a designated file exists or not; if no, executing the following steps: starting up the operation system by reading various startup files required by the startup from a magnetic disk; tracking the startup process of the operation system to obtain startup information; sorting various startup files required by the startup based on startup information; storing file names of various startup files required by the startup after sorting and physical addresses of the file names on the magnetic disk to the file; and taking the file as the designated file, wherein the startup information comprises the file names of various startup files required by the startup and the physical addresses of the file names on the magnetic disk. According to the startup method disclosed by the invention, due to the use of a magnetic disk pre-reading technology, the files required by startup are sequentially read from the logic, which shortens the addressing time of the magnetic disk caused by random reading of the files and further reduces the waiting time of the operation system in the startup process.

The invention discloses a repeated data deleting method and device.The method includes the steps of inquiring about the read-write frequency of a file similar to a to-be-written-in object file in a file read-write frequency table, judging whether the read-write frequency is larger than a preset threshold or not, if yes, writing the object file in a newly-distributed magnetic disk space, and if not, writing the object file in the newly-distributed magnetic disk space through a repeated data deleting strategy.It can be seen that through the combination of the executing of the repeated data deleting strategy and the read-write frequency of the file, repeated data deleting operation is not conducted on a file with high read-write frequency, and therefore magnetic disk segments are reduced, seek time is shortened, system performance is improved, and repeated data is deleted more reasonably.

The invention discloses an IO scheduling method and apparatus. The method comprises the steps of obtaining a quantization distance of each IO queue, wherein the quantization distance of any IO queue is obtained by calculating the distance between an initial disk position corresponding to each IO request in the IO queue and a current disk head position; by utilizing the quantization distance of each IO queue and a preset original priority of each IO queue, calculating an optimized priority of each IO queue; and according to the optimized priority, performing polling scheduling on the IO queue. Therefore, fair polling of the IO queues can be achieved, the moving range of a disk head can be reduced, the seek time of a disk is further shortened, and the IO throughput of the disk is effectively increased.