42results about How to "No data loss" patented technology

The invention provides a live method and system for a stream medium. The live method for the stream medium comprises the following steps: performing slicing processing on the stream medium transcribed in a real-time manner by a stream pushing terminal, and successively generating slicing files which can be independently played; updating generated information of the slicing files to an indexed file, wherein the indexed file comprises preset capacity of the information of the slicing files; uploading the indexed file and the slicing files to a server by the stream pushing terminal, and further processing the indexed file and the slicing files by the server according to need. The live system for the stream medium comprises a slicing processing module and a slicing uploading module, wherein the slicing processing module is used for performing the slicing processing on the stream medium transcribed in the real-time manner and successively generating the slicing files which can be independently played; the slicing uploading module is used for updating the generated information of the slicing files to the indexed file, the indexed file comprises the preset capacity of the information of the slicing file, and the indexed file and the slicing files are uploaded to the server. Through the use of the technical scheme of the invention, the fluctuation resistant property of the live stream medium is improved, and the data integrity is ensured.

The invention provides a virtual device reconstruction technology. In a virtual device reconstruction method, a second VTL node takes over an enetry address of a first VTL node, the second VTL node acquires configuration information of a virtual device, a device address, an entery address and backup server exit addresses, the second VTL node generates a reconstructed virtual device by utilizing the configuration information, the device address is allocated to the reconstructed virtual device, and mapping relations between the reconstructed virtual device and the VTL device entry address and between the reconstructed virtual device and the backup service exit addresses are established. By application of the reconstructed virtual device, the business being backuped of the original virtual device can be taken over smoothly.

The driving method for code flow broadcast card and code flow acquisition card includes transmitting code flow data between hardware and application program in DMA mode; judging the interruption type with the ISR of the drive program and processing various interruption types through calling DPC routine in the interruption delay process; and realizing the control of the application program on the hardware through the communication between the application program and the drive program. The present invention solves the problem in interfacing the code flow broadcast card and the code flow acquisition card with the application program to make the code flow broadcast card and the code flow acquisition card operate normally on computer PCI bus to complete code flow broadcast card and acquisition task and further analysis and monitoring. The drive program completes the code flow transmission correctly at code flow rate as high as 120 Mbps without data loss.

The invention discloses a method for detecting a gas flow rate through a weight loss method. The method is used for dynamically analyzing the gas flow rate and comprises the steps of establishing dynamic connection between an electronic balance and a computer, starting a gas generator, starting timing and weighing, calculating the gas volume flow rate per unit time, obtaining a flow-time curve graph, and processing and analyzing detection data. According to the method, the electronic balance and the computer are connected dynamically, the gas mass flow rate of the gas generator is detected in real time, weighing software of the computer is used for finishing corresponding detection processes, and the method comprises model selection and configuration of the balance, conversion of the volume flow rate, setting of detection duration, drawing of the flow-time curve graph and processing and analyzing of data. The method is widely used for detection of gas flow rates of various medium and small gas generators and can be used for dynamic detection of gas flow rates with mass and time changed correspondingly. The method has the advantages of being simple to operate, safe to detect, high in detection precision and good in field adaptability.

The invention discloses an inter-cell switching method of a cellular-VANET heterogeneous network. The method comprises the steps of: (1), initiating a switching assistance request by a cell edge vehicle; (2), selecting a cooperative node; (3), initiating a channel access request by the cooperative node, and allocating a channel by a base station; and (4), carrying out received data merging between base stations, and realizing accessing of the edge vehicle to the channel. According to the inter-cell switching method provided by the invention, the vehicle in a switching process communicates with the base stations of a source cell and a target cell through assistance of other vehicles in a vehicle self-organizing network, the vehicle keeps communicating with the base stations all the time in the switching process, the data loss is avoided, and the relatively high data transmission speed can be kept.

The invention discloses a high-availability and high-consistency database cluster system and a command processing method thereof. The system comprises a command processing rule setting unit, an initial configuration unit and a plurality of nodes, wherein the nodes are connected through a private network; each node can provide complete data storage, access and command execution management services; the initial configuration unit is used for providing a configuration interface and determining a primary node and secondary nodes in the nodes in a manual configuration manner; and the command processing rule setting unit is used for setting a command processing rule and ensuring data among the nodes of the database cluster system in the command processing process to be synchronous and consistent. According to the system and the method, each node in the database cluster system can provide complete storage and access services; in the command processing process, the data of the nodes in the database cluster system is synchronous and consistent; and a single node fault does not influence normal work of the database cluster system and also does not cause data loss.

The invention provides a wind power main shaft bearing design calculation and model selection method and device. The method comprises the following steps: reading a time sequence load of a main shaftbearing by taking a load step as a unit; calculating a radial load and an axial load borne by the bearing under the action of each load step; calculating a bearing equivalent load corresponding to theload step of each time sequence according to the radial load and the axial load; calculating a rated dynamic load minimum value of the main shaft bearing according to the bearing equivalent load of each load step; calculating the shaft outer diameter of the main shaft bearing according to the bearing equivalent load of each load step; and according to the minimum value of the rated dynamic load and the outer diameter of the shaft, finishing type selection of the main shaft bearing. According to the wind power main shaft bearing design calculation and model selection method and device, the original data size is not lost, bearing design calculation and model selection are carried out by adopting the original data, the calculation precision is high, and the reliability is high.

The present invention provides a memory device for reducing power consumption during a self-refresh operation performed for protecting data loss. For this object, in the present intention, the memory device for performing a refresh operation in a self-refresh period instigated for every constant time interval after entering into a self-refresh mode includes a low-power controller outputting a enable signal for enabling the power supply means during the self-refresh period after being enabled in the self-refresh mode; and a power supply means receiving the enable signal for supplying a low and a high voltages used in an internal circuit by using an external supply voltage and a ground voltage, wherein the low voltage is lower than the ground voltage and the high voltage is higher than the external supply voltage.

The invention discloses a buried long distance pipeline cathode protection device based on an STM32 single-chip microcomputer. The device is characterized in that an anode ground bed and a reference electrode are laid in the soil beside a buried long distance pipeline, and a cathode wiring point is arranged on the buried long distance pipeline; the device comprises an upper computer, a main control module, an AD data acquisition module, a DA control module, a communication module, a storage module, an RTC module, a human-computer interaction module, a power module and a temperature sensor. Compared with the prior art, the main control module acquires output voltage, output current and reference potential through the AD data acquisition module, the temperature of the pipeline is collected by the temperature sensor, the output voltage of the power module is automatically adjusted through the DA control module, and the corrosion rate of the buried pipeline is greatly reduced.

The invention discloses a data importing method and device for a graph database, and the method comprises the steps: registering a self-defined Spark udf function in a graph database program, and enabling the graph database to be connected with a Spark resource through the Spark udf function; creating a node attribute index in the graph database; inquiring a hive database by utilizing the spark resources to obtain inquired data; re-partitioning the queried data, and registering the re-partitioned data as a temporary data table; and importing the temporary data table into the graph database through the Spark udf function and the node attribute index. According to the method, the spark is combined with the graph database, real-time data import can be realized, the data does not need to be exported into a csv format. The Spark performance can be conveniently adjusted and the data import speed can be conveniently adjusted by utilizing the Spark technology, and by utilizing the concurrencycharacteristic of the Spark, the data import can be accelerated, and meanwhile, data loss is avoided.

The present invention provides a vehicle-mounted MOST multi-ring network based advertisement pushing system. The system comprises a remote server end, a vehicle-mounted host, and a vehicle-mounted MOST network node terminal. The present invention also provides a vehicle-mounted MOST multi-ring network based advertisement pushing method. The method comprises updating the remote server end, the vehicle-mounted host and the vehicle-mounted terminal. In the system and method disclosed by the present invention, a file data breakpoint transmission function is supported between the remote server end and the vehicle-mounted host, and between the host and the terminal, so that stability of data transmission is improved; and the system and method disclosed by the present invention greatly improve the working efficiency, and effectively reduce maintenance costs and investment of human resources.

The invention discloses a container data processing method and device applied to modular vision software, and the method comprises the steps: an image is recognized through an image recognition program in machine vision recognition, an element set in the image is searched according to a template or a line circle, and a loop body program is constructed in a split collection mode to process a recognition task of the image; And the list data of the recognition task enters a data processing program after passing through the splitting node, the result of the data processing program is output through the collection node, the data collection of the collection node is not finished, then the data processing program returns to the splitting node to continue to execute the splitting node process, splitting and collection are executed once every time the data processing program is executed circularly, and the data is reserved. According to the method, data loss is avoided in circulation, the degree of freedom of data is high, the process complexity, programming difficulty and error probability of data flow circulation processing are reduced, and the method is easy to use and debug.

The invention relates to a data supervision system, in particular to a government affair data supervision system capable of ensuring information security, which comprises a server, and the server respectively obtains an access request and identity information from an access terminal through an access request receiving module and an access identity obtaining module. A compressed two-dimensional code image in the access request is decompressed and restored through a data restoration module, corresponding government affair data are called, and the server carries out grading and desensitization processing on the called government affair data through a sensitive data detection module, a sensitive data grading module and a data desensitization module; the data desensitization module generates a data matrix by using the sensitive data of the corresponding grade, and desensitizes the data matrix; according to the technical scheme provided by the invention, the defects that the collected government affair data cannot be safely stored and a reasonable data desensitization strategy cannot be adopted to process the government affair data in the prior art can be effectively overcome.

The invention discloses an integrated photovoltaic wireless meteorological station. The integrated photovoltaic wireless meteorological station comprises a solar panel, a lithium battery and a charging circuit; the solar panel, the charging circuit and the lithium battery are sequentially connected; the integrated photovoltaic wireless meteorological station further comprises a processor, a remotewireless communication module, a short-range wireless communication module and a sensor; the processor is connected with the remote wireless communication module, the short-range wireless communication module and the sensor; the remote wireless communication module is a GPRS wireless communication module; and the short-range communication module is a 433M wireless module. Through the station, anyconfiguration of the sensor can be realized; the transportability of a system is improved; low-power photovoltaic power supply is realized; and the stability of the system is enhanced.

Embodiments of the invention disclose a data transmission method and a wireless camera device. The method comprises the steps of connecting a master signal in a wireless signal set with a first wireless network interface card, so as to obtain a main link; taking a wireless signal with highest priority in the wireless signal set except the master signal as a standby signal and connecting the standby signal with a second wireless network interface card so as to obtain a standby link; and when the wireless camera device moves, updating wireless signals in the wireless signal set periodically and re-prioritizing the wireless signals, and if a difference between the priority of the master signal and the priority of the current standby signal reaches a first preset value, using the standby link as a new main link to transmit data of images taken by the wireless camera device to a wireless receiving terminal. When the wireless camera device moves, it is ensured that image data received by the wireless receiving terminal is not lost or interrupted, so that the user experience is improved.

The invention discloses a lawn environment parameter data acquisition system based on lawn lamps. The system comprises a plurality of wireless sensor networks comprising a plurality of wireless sensor nodes arranged in a monitored lawn, gateway nodes, a communication server connected with the gateway nodes and an upper monitor device connected with the communication server, wherein, the plurality of wireless sensor networks are divided into different areas which are respectively arranged in a plurality of power supply areas in the monitored lawn, a lawn lamp is correspondingly arranged in each power supply area, the wires sensor nodes comprise a plurality of air humiture sensor nodes and a plurality of soil moisture sensor nodes, and a plurality of wireless sensor nodes in the wireless sensor network in each power supply area are powered by the power supply circuit of the lawn lamp in the power supply area. The lawn environment parameter data acquisition system has the advantages of reasonable design, low cost, convenient power supply, good monitoring effect, and quick, accurate and comprehensive data acquisition, is convenient and easy to operate, and can achieve the purpose of completely and effectively monitoring the entire lawn.

The invention discloses a special construction project cost counter which structurally comprises a counter body, a loudspeaker, a fingerprint identifier, a storage battery, a flap cover groove, an LED illumination lamp, a display screen, an intelligent data storage key and a computer chip. The fingerprint identifier and the flap cover groove are respectively and fixedly arranged below the left side and the right side of the computer body, the LED illumination lamp and the display screen are arranged at the upper end of the flap cover groove, keys, a clamping ring and a flap cover are arranged on the flap cover groove, the keys are arranged on the key appearance layer, the flap cover groove is mechanically connected with the flap cover through a clamping ring, the loudspeaker and the intelligent data storage key are installed above the left side of the computer body, a data interface is formed in the side end of the computer body and is embedded into the computer body, and the storage battery and the computer chip are arranged in the computer body. The special construction project cost counter can ensure data safety by arranging the fingerprint identifier and avoids information disclosure, meanwhile the intelligent data storage key has a data storage function and makes programs and data not lost.

The invention relates to the field of data storage, in particular to a data backup method and device and a data recovery method and device. The method comprises the following steps of obtaining data information corresponding to current modified data in a user volume, wherein the data information comprises the offset position, the effective length and the data content of the modified data, based on the offset position and the effective length, updating the data content of the modified data to a corresponding position of the backup volume, and creating a snapshot for the backup volume updated according to the modified data, and taking the snapshot as a total data set to serve as a basis for user volume data recovery. When a user needs to recover the data, all the data can be recovered only by using the full-amount data set at the corresponding time point, only one-time downloading is needed at the same position during rollback, and waste of bandwidth resources is not caused. And when the full-amount data set at a certain time point is deleted, data recovery can be carried out according to other full-amount data sets, and large data loss cannot be caused.

The invention discloses a data protection device and a data protection method for an RAID (Redundant Array of Inexpensive Disks) card. A Nand flash technology and a super capacitor technology are combined; when a system is unexpectedly powered off, cache data of the RAID card are protected. The data protection device for the RAID card comprises the RAID card, a Flash board and a capacitor management board, wherein the Flash board is responsible for communicating with the RAID card and the capacitor management board and monitoring the states of the RAID card and a capacitor; when the system is powered off, important data of the RAID card are enabled to be kept in an activated state by a super capacitor, so that the data are allowed to be copied from an RAID card onboard cache to the Flash. According to the data protection device and the data protection method disclosed by the invention, the data of the RAID card can be automatically cached, so the security of the data in the RAID card is guaranteed, and the stability of the system is improved.

A universal identification graph algorithm connects identities across computing devices and digital channels to one customer. The universal identification allow marketers to engage customers with relevant brand experience as they move between devices and across all digital channels. The universal identification graph algorithm enables mapping of a customer's journey across multiple, different identifications, allows deep personalization based on behaviors, habits, and preferences across the entire customer journey, helps create a more comprehensive customer profile to enable marketers to target the customer with relevant content at the right time and through the right channels, and also provides the customer with the ability to quickly opt out.

The driving method for code flow broadcast card and code flow acquisition card includes transmitting code flow data between hardware and application program in DMA mode; judging the interruption type with the ISR of the drive program and processing various interruption types through calling DPC routine in the interruption delay process; and realizing the control of the application program on the hardware through the communication between the application program and the drive program. The present invention solves the problem in interfacing the code flow broadcast card and the code flow acquisition card with the application program to make the code flow broadcast card and the code flow acquisition card operate normally on computer PCI bus to complete code flow broadcast card and acquisition task and further analysis and monitoring. The drive program completes the code flow transmission correctly at code flow rate as high as 120 Mbps without data loss.

A mobile communication system is provided which is capable of realizing high-speed packet data transfer without causing any data loss during handover between base stations while high-speed packet communication by an HSDPA system is in progress. When an RNC receives from a UE a message requesting activation of handover between Nodes B in the course of high-speed packet communication, it stores a Sequence Numbers of HS-DSCHFP that have been sent up to that moment to the NodeB, and informs a Serving NodeB of a destination of data. The RNC sends NBAP: Radio Link Reconfiguration Commit by routing and thereafter starts data transfer from the Serving NodeB to a Target NodeB.

The invention discloses an operation control method of a server, which comprises the following steps: in response to a received startup instruction, detecting the electric quantity of a standby powersupply group; judging whether the electric quantity of the standby power supply group is greater than a first preset electric quantity; in response to the situation that the electric quantity of the standby power supply group is greater than the first preset electric quantity, judging whether the electric quantity of the standby power supply group is greater than a second preset electric quantity;and in response to the situation that the electric quantity of the standby power supply group is smaller than the second preset electric quantity, controlling the server to execute the read-only service. The invention further discloses computer equipment and a readable storage medium. According to the method disclosed by the invention, whether the electric quantity of the BBU power supply meets the threshold value or not is detected after startup, so that whether the server needs not to carry out the service or only carries out the read-only service or not is judged, and data loss is avoidedwhen the BBU power supply does not meet the preset electric quantity and after a sudden power failure occurs.

The invention discloses a buried long distance pipeline cathode protection device based on an STM32 single-chip microcomputer. The device is characterized in that an anode ground bed and a reference electrode are laid in the soil beside a buried long distance pipeline, and a cathode wiring point is arranged on the buried long distance pipeline; the device comprises an upper computer, a main control module, an AD data acquisition module, a DA control module, a communication module, a storage module, an RTC module, a human-computer interaction module, a power module and a temperature sensor. Compared with the prior art, the main control module acquires output voltage, output current and reference potential through the AD data acquisition module, the temperature of the pipeline is collected by the temperature sensor, the output voltage of the power module is automatically adjusted through the DA control module, and the corrosion rate of the buried pipeline is greatly reduced.

The invention belongs to the field of security and protection technology and relates to a trouble intelligent detecting method for a video surveillance device and a detecting system thereof. The trouble intelligent detecting method for the video surveillance device and the detecting system thereof solve the technical problems that the design is not reasonable and the like in the prior art. Each trouble inspection device in each area is connected with a plurality of video surveillance devices. An area memorizer and an area alarm device are respectively connected with each trouble inspection device in each area. The area memorizers are both connected with a concentration memorizer. The area alarm devices are both connected with a supervision device. The concentration memorizer and a concentration alarm device are both connected with the supervision device. A plurality of spare trouble inspection devices are connected on the supervision device. The area trouble inspection devices and the spare trouble inspection devices are same in quantity and coordinated in one-to-one correspondence to work. The trouble intelligent detecting method for the video surveillance device and the detecting system thereof have the advantages of that the whole framework is reasonable and the structure is simple, the work stability is good and the overall breakdown conditions are not easy to appear, alarm methods are various so as to eliminate risks of ignoring alarm signals, and alarm signals can be timely sent out.

The invention relates to a stereo garage, in particular to a stereo garage elevator counting device. The device comprises elevators and steel stand columns, proximity switches are installed on the elevators, position detection plates matched with the proximity switches are installed on the steel stand columns on each layer, and the number of the proximity switches and the number of the position detection plates are multiple; the position detection plates are arranged and combined, and the corresponding position detection plates are installed at the positions of the steel stand columns of eachlayer according to the arrangement and combination positions. Different combinations of the proximity switch signals represent different floors, each position of the elevator is accurately calculatedaccording to different proximity switch signals, the data loss phenomenon does not exist, and the reliability is high.

The invention discloses a function-integrated SCADA (supervisory control and data acquisition) system. The system comprises a web front-end webpage layer, an SCADA (supervisory control and data acquisition) layer and a function-integrated SCADA layer, the function driving layer is in communication connection with the web front-end webpage layer; the main control service layer is arranged between the function driving layer and the web front-end webpage layer; the master control service layer is used for reading front-end configuration information and controlling execution of system function service; the main control service layer is configured with multiple levels of equipment driving nodes for realizing transmission of a driving execution instruction; the cluster data layer is connected with the function driving layer and is used for storing and analyzing data; the interface configuration layer is connected with the cluster data layer; and the back-end equipment layer is connected with the function driving layer. According to the technical scheme, multiple functional modules are integrated in the architecture, configuration, driving, data storage, data analysis and visualization functions can be integrated, the system can be used after being opened, and the system development and operation and maintenance cost is reduced.

The invention discloses a cluster robot mapping system and method, wherein the method comprises the steps that a sweeping robot builds a grid map through a laser radar, local sub-maps are transmittedto a control center in real time in a local area network communication module built based on a router, and finally on the basis of a known initial relative pose of a robot, the local sub-maps are converted and fused into a complete map through a map coordinate system. According to the cluster sweeping robot real-time mapping method based on the local area network, the problem that the mapping timeis long in a large-area indoor environment can be solved, meanwhile, the mapping quality can be improved, and the mapping effect can be observed in real time.