71results about How to "Lost will not" patented technology

The invention discloses a fault database switching method and system used for a distributive database cluster, relating to the fault switching field for distributive databases of back-end internet. The method comprises following steps: monitoring all primary databases in the database cluster, and determining the current primary database as a fault database when the primary database with false faults are monitored and instance ports of databases of the current primary database work abnormally; if a fault sever does not go down and the fault database instances go down, backing up log information before the fault databases are switched; and directly switching fault databases if the fault databases go down. The fault database switching method and system used for the distributive database cluster have following beneficial effects: if databases of the distributive database cluster fail, fault databases are rapidly switched and data is not lost to the maximum extent; meanwhile, high precision is obtained for survey of fault databases and load for work is small.

The embodiment of the invention provides a data transmission method, data receiving device and data sending device for video service, and relates to the field of data transmission. The method comprises the steps of receiving a video data packet; judging whether the overflow of the receiving buffer area is caused if the received video data packet is put into a receiving buffer area; judging the type of the received video data packet if the receiving buffer area is judged to be overflowed when the received video data packet is put into the receiving buffer area; directly discarding the received video data packet if the received video data packet is not important in type; and if the type of the received video data packet is important, finding a video data packet unimportant in type closest to a queue tail in a receiving buffer area queue, discarding the video data packet unimportant in type closest to the queue tail in the receiving buffer area queue, and adding the received video data packet to the queue tail of the receiving buffer area queue. In this way, key frames are prevented from losing.

The invention relates to an efficient multi-thread log writing-in method. An interface used for an application program, a front terminal for generating log information and a rear terminal responsible for writing the log information into a local file are used. The efficient multi-thread log writing-in method includes the steps that (1) buffering regions of the front terminal and buffering regions of the rear terminal are initialized, (2) the front terminal is responsible for filling the buffering regions of the front terminal with the log information, (3) the rear terminal writes log data of the buffering regions of the rear terminal into the local file, (4) after the buffering regions of the front terminal are filled through writing, the buffering regions of the front terminal and the buffering regions of the rear terminal are exchanged, the rear terminal writes the data of the buffering regions of the rear terminal into the local file, the front terminal fills the buffering regions of the front terminal with the new log information, and the steps are circularly executed in this way. According to the efficient multi-thread log writing-in method, obvious performance losses can be avoided when thousands of logs are written per second, the scene that a large number of log data are generated through one course can be dealt with, normal executing flow is not blocked, and lock contention in a multi-thread program is avoided.

The invention discloses a solid state storage device and a data control method thereof. The solid state storage device comprises a flash memory and a control unit, wherein the flash memory comprises a plurality of blocks; each block comprises a plurality of pages; the control unit is connected to the flash memory; and when the control unit erases data or writes the data into the blocks, the control unit provides a time parameter for each block, so that the control unit can execute a data loss protection operation, an average erasing block operation or a garbage collection operation according to the time parameters.

The invention discloses an unattended BIOS (Basic Input / output System) configuration method which comprises the following steps: setting configuration information required by a BIOS in a BMC (Block Multiplexer Channel) by a user; supplying a virtual interface for the user to configure the BIOS by the BMC, and storing the configuration information in an EEROM (Electrically Erasable Read-Only Memory); and storing the BIOS configuration information in the EEROM. Compared with the prior art, the unattended BIOS configuration method provided by the invention has the advantages that when BIOS configuration is performed according to the method, the alteration for some configurations is performed by setting BIOS related items in a WEB interface of the BMC in advance by the user under the condition of not losing original configuration information of the BIOS, the manual configuration after startup self-checking / BIOS upgrading is not required, the BIOS can finish self-setting after startup according to the setting in the BMC, and the original configuration information is not lost if the alteration for configuration information and the resetting of the BIOS are not required.

The invention provides a data processing method, device and system. The data processing method comprises the following steps: obtaining local preset data; storing the preset data in a target storage space; and responding to a data transmission instruction sent by a server, and uploading the preset data stored in the target storage space to the server. By adopting the data processing method, device and system in the technical scheme, the local preset data of a terminal are stored in the target storage space, for example, linkmen, short messages and other important data in the terminal are stored in the target storage space, in this way, when the terminal is lost, the data transmission instruction can be sent to the terminal through the server, to enable the terminal to upload the preset data stored in the target storage space to the server, so as to prevent important data in the terminal from losing and improve the user experience.

The invention relates to a papermaking fiber image measuring method. The instrument adopted in the method is a papermaking fiber analyzer consisting of a biological microscope of which the ocular lens is replaced by a digital video, a microcomputer, a display connected with the microcomputer, and a papermaking fiber analyzing program arranged inside the microcomputer. The measurement item comprises image method measurement of length and width of the papermaking fiber, image method measurement of papermaking fiber ratio and measurement of papermaking fiber plant material cell wall and cavity ratio. The invention provides filmmaking technology by a gel process, and a glass slide clamp capable of accommodating large-scale glass slides. The papermaking fiber image measuring method has the advantages of simpleness, practicability and accurate result.

The invention discloses a device for a cell membrane permeabilization migration test and a forming mould for manufacturing the device, belonging to the devices for cell experiments. The device is characterized by comprising a disc-shaped culture dish filled with gelatinized agarose, a cell hole defined by the gelatinized agarose in the culture dish, a chemotaxin hole defined by the gelatinized agarose in the culture dish, a migration channel defined by the gelatinized agarose in the culture dish and communicating the cell hole and the chemotaxin hole, and a macromolecule filter membrane blocked in the migration channel. The forming mould for manufacturing the device is characterized by comprises a base plate, and a mould body, wherein two sides of the base plate are provided with arc-shaped vertical edges, the convex-column-shaped mould body is arranged in the center of the base plate, and manufactured according to the shapes and sizes as well as the structures of the cell hole, the chemotaxin hole, the migration channel and the macromolecule filter membrane. Through trial, compared with the prior art, the device and the mould have the advantages that the migration movement of the cells passing through the porous polyester fiber membrane can be directly observed, the number of the cells successfully passing through the porous polyester fiber membrane can be accurately counted, and the cells successfully passing through the porous polyester fiber membrane can be conveniently collected for follow-up experiments.

An audio synthesis device capable of embedding additional information which cannot be modified into a synthesis audio without causing audio quality deterioration or band limit includes: a language processing unit (201) for generating synthesized audio generation information required for creating a synthesized audio according to a character string; a prosody generation unit (202) for generating an audio prosody information according to the synthesized audio generation information; and a waveform generation unit (203) for synthesizing audio according to the prosody information. The prosody generation unit (202) embeds code information as watermark information into the prosody information in the area of a predetermined time width not exceeding the phoneme length containing a phoneme boundary.

The invention discloses a laser radar point cloud target segmentation method and device, a target matching method and device and a vehicle. The target segmentation method comprises the steps of classifying point clouds obtained by scanning a target through a multi-line laser radar, and obtaining subclasses of the same target point cloud; projecting the point cloud of the subclass to a two-dimensional plane; obtaining an outer envelope box of each subclass; and combining the subclasses intersected with the outer envelope boxes into one class. According to the method, the outer envelope box merges the subclasses after point cloud segmentation, and a threshold value is not needed when the subclasses are merged, so that the defect that the threshold value is difficult to determine in the priorart is avoided. By changing the point cloud classification method, the operation amount is reduced, the target is incorporated into one database, the target of the new frame is compared and identified with the target in the database, the situation that the target is lost in some frames is effectively coped with, and accidents are avoided.

The invention provides an application and manufacturing method and system for satellite digital service rechargeable cards. The method includes the steps that a card application client-side makes a rechargeable card application request and inputs application information; an approval client-side judges whether the application information meets approval requirements; on the condition that the approval requirements are met, a secrete key input device inputs a secrete key, an application server distributes a rechargeable card number according to the application information and generates a password according to the secrete key, the card number and the password are matched, and then a secrete key seed file and an encrypted file are obtained; a card making client-side decodes the secrete key seed file and the encrypted file to obtain the decoded card number and the decoded password; a card making device makes a rechargeable card according to the decoded card number and the decoded password. Users can directly buy the rechargeable cards and obtain authorization through telephones or networks at home promptly and quickly, so the application and manufacturing method and system for the satellite digital service rechargeable cards are capable of meeting market requirements, and solve the problem that user authorization must be carried out at business halls very inconveniently in the technical field of satellite digital services.

The invention relates to the field of vehicle control, and especially relates to a high-precision ADAS map data system based on four-level automatic driving. The method comprises a manufacturing method, a transmission method and a device. The manufacturing method comprises the following steps: S1, acquiring information: acquiring four-level automatic driving high-precision map data and vehicle positioning information in a private format; S2, extracting information: extracting effective information for generating ADAS map data from the map data in the private format according to the vehicle positioning information; and S3, producing: generating standard ADAS map data according to the extracted information and the topological relation of the forward road network of the vehicle. The transmission method comprises the capability of receiving information from the Ethernet and sending the information to the Ethernet, the capability of receiving and processing the vehicle positioning information and the capability of executing the manufacturing method. The ADAS map data manufacturing method based on the HD Map has the advantages that key elements in a real scene can be restored within an extremely small precision error, so similar safety problems can be smoothly solved.

The invention discloses a device for a cell membrane permeabilization migration test and a forming mould for manufacturing the device, belonging to the devices for cell experiments. The device is characterized by comprising a disc-shaped culture dish filled with gelatinized agarose, a cell hole defined by the gelatinized agarose in the culture dish, a chemotaxin hole defined by the gelatinized agarose in the culture dish, a migration channel defined by the gelatinized agarose in the culture dish and communicating the cell hole and the chemotaxin hole, and a macromolecule filter membrane blocked in the migration channel. The forming mould for manufacturing the device is characterized by comprises a base plate, and a mould body, wherein two sides of the base plate are provided with arc-shaped vertical edges, the convex-column-shaped mould body is arranged in the center of the base plate, and manufactured according to the shapes and sizes as well as the structures of the cell hole, the chemotaxin hole, the migration channel and the macromolecule filter membrane. Through trial, compared with the prior art, the device and the mould have the advantages that the migration movement of the cells passing through the porous polyester fiber membrane can be directly observed, the number of the cells successfully passing through the porous polyester fiber membrane can be accurately counted, and the cells successfully passing through the porous polyester fiber membrane can be conveniently collected for follow-up experiments.

The invention relates to the technical field of engineering machinery, and discloses a safe shutdown method and device, a moment limiter and engineering machinery, and the method comprises the steps:detecting whether the external power supply of equipment is interrupted or not, switching to a standby battery to continue to supply power to the equipment if the external power supply is interrupted,and starting an abnormal shutdown flow of the equipment at the same time. The phenomena of equipment data loss and operating system crash caused by abnormal shutdown can be solved.