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 private cloud computing platform-based virtual machine repair method, which comprises the following steps of: A, judging the system type of a virtual machine to be repaired; B, when judging the type of the virtual machine to be repaired is a window system, mounting the virtual machine to be repaired to another normally started virtual machine as a virtual disc, and repairing a configuration file of the virtual machine to be repaired by using a preset backup file; or C, when judging that the type of the virtual machine to be repaired is a linux system, automatically executing script repair after starting a damaged mirror image by using a live CD. The virtual machine repair method provided by the invention is implemented on the basis of the operation of a cloud platform, the system used by a user is not required to be learnt extremely, automatic operation is implemented as much as possible, fewer relative operation steps are required, and a driving program is not required to be reinstalled after repair.

The invention discloses a method and device for reestablishing a user database on a block chain, terminal equipment and a storage medium. The method for reestablishing the user database on the block chain comprises the steps of reading all data items on the block chain, wherein each data item is obtained after being encrypted through a preset encryption algorithm; adopting a decryption algorithm corresponding to the encryption algorithm for decrypting each data item, and obtaining a decrypting result of each data item; if the decrypting results carry user identifiers, determining the data items as user data information corresponding to the user identifiers, and saving the data information; based on indexes and data secret keys, establishing a corresponding relationship of the data information on the block chain, and reestablishing the user database on the block chain. By means of the method for reestablishing the user database on the block chain, a user can find back missing data fromthe block chain, and the user database is reestablished.

This invention provides one network interface system, which comprises the following parts: outlet identification device to store user identification information to provide to customer terminal; customer terminal to provide network interface service and to provide interface network or business to network. This invention also provides one interface method, which comprises the following steps: getting user identification information from outside device; customer ends uses identification to load network to determine user legal information to realize network interface.

A printing system and a printer used in a printing system that acquires from a printer data relating to how much ink or other recording material was used manages the ink cartridges or other recording material cartridges individually while maintaining the reliability of data acquired from the printer. The printer (240) calculates the amount of ink used only for printing as a number of discharged ink shots, and sends this shot count with the printer serial number and ink cartridge ID to a server (220). The server (220) saves the shot count, printer serial number, ink cartridge ID, and an error correction code as status information. The server (220) or server upstream from the server (220) can reliably determine the number of ink shots used by the printer (240) only for printing from this status information.

The invention discloses a mass log management cloud platform, which comprises a log collection system (01), a log processing system (02), a log indexing and storage system (03) and a log query and application system (04). The mass log management cloud platform is a cloud log management system which can carry out full-text indexing on a log to more quickly search and analyze the log; cloud storage is adopted to prevent the log from being limited to the volume of storage hardware; and the problem of log data loss caused by a single point of failure can be solved. A log message processing subsystem (021) is added in the log processing system (02) and is responsible for transmitting the received log to a real-time flow processing subsystem (022) so as to realize decoupling of the acquisition and processing of logs . If the log indexing and storage system fails, the log message processing subsystem (021) can automatically and temporarily stores a message in a hard disk in a persistence way, and therefore, a phenomenon that the log received by the system is lost due to the exception of the indexing and storage system can be avoided.

The embodiment of the invention provides a method and a device for the operation of an FPGA (Field Programmable Gate Array) in an MCU (Microprogrammed Control Unit) chip. An FPGA module and a flash chip are integrated in the MCU chip, the FPGA module comprises an FPGA component and an FPGA IO (Input / Output) configuration submodule, and the FPGA IO configuration submodule is respectively connected with all elements in the MCU chip. The method includes the following steps: after the FPGA component is debugged and the MCU chip is electrified, the program data information preset in the flash chip is read; the hardware description information preset in the flash chip is read; the hardware description information is burnt into the FPGA component; the FPGA component is reset; the MCU chip adopts the FPGA to execute the program data information. The cost and waste can be reduced, and the condition that the circuit in the FPGA and the other circuits of the MCU chip can cooperatively work can also be ensured.

The invention discloses a coding method. The method comprises that first image data and first audio data are obtained; and the first audio data is inserted into the header of a picture file according to a preset strategy, and the first image data and the first audio data are combined into one file. The invention also discloses a decoding method, coding and decoding devices, electronic equipment and an audio picture generating method. According to technical scheme of the invention, pictures and audio can be encoded and stored in the same file, an audio picture can be decoded and played at the same time, the problem that in the prior art audio data of the audio picture tends lose after the picture is edited and stored by image and picture processing software is solved, and user experience is improved.

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 discloses a rehabilitation clinic diagnosis and treatment whole-process digital management system based on big data. The system comprises a health card read-write terminal, a WEB client, a WEB service end and a distributed network database, wherein the health card read-write terminal is connected with the WEB client, the WEB client is connected with the WEB service end, and the WEB service end is connected with the distributed network database. The system provided by the invention is based on a large data technology, can store and analyze mass vast data, can realize an optimum comprehensive cost of the three aspects of "low price", "rapidness" and "optimization", effectively solves technical problems in the prior art by reliance on the distributed network database and a cloud computing technology and realizes rehabilitation medical digitization and informatization.

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.

The invention discloses an unmanned aerial vehicle anti-loss method and a control system. The method comprises the steps: a remote control end obtains the GPS data of an unmanned aerial vehicle at regular time; whether the GPS data is abnormal or not is determined; if the GPS data is abnormal, the remote control end sends a command to the unmanned aerial vehicle to control the unmanned aerial vehicle to hover and give an alarm; the distance between the position of the hovering unmanned aerial vehicle with the abnormal flight state and the position of the unmanned aerial vehicle with the normallast flight state is calculated, and the position range of the unmanned aerial vehicle is calculated according to the distance. Whether the unmanned aerial vehicle is abnormal or not is quickly judged according to the longitude and latitude coordinate format and the coordinate error range of the GPS data, protection measures are taken, hovering or course reversal operation is adopted if abnormityis judged, and that the unmanned aerial vehicle cannot be lost is guaranteed.

The present invention relates to a mobile telephone number based device for providing virtual electronic mailbox service. It is characterized by that it includes a virtual electronic mailbox server, namely Email STP communication equipment respectively interconnected with data interconnected network, mobile business unit internal data network and mobile communication network, the described Email STP communication equipment can be interconnected with short message gateway and short message centre by means of mobile business unit internal data network, interconnected with mobile telephone user by means of mobile communication network and connected with interconnected net computer user by means of data interconnected network, namely Internet. Said invention also provides the functions of Email STP communication equipment.

The invention discloses a shopping card implementation method based on a block chain. The invention relates to the technical field of block chain shopping cards. According to the technical scheme, thetechnical problems that an entity shopping card is high in manufacturing cost and unclear in fund flow direction are solved, the key point of the technical scheme is that the physical identity and the digital identity of an enterprise are mapped and written into a block chain through an intelligent contract, the block chain shopping card similar to non-homogenized tokens is issued, and the blockchain shopping card can be additionally issued and can also be used for self-transaction. According to the block chain shopping card, the cost is saved, and an entity card does not need to be manufactured; the shopping card is easy to manage and use and not easy to lose, a cardholder uses the digital wallet to manage the shopping card, a two-dimensional code is generated during use, and the shopping card cannot be lost forever as long as the cardholder backs up his own wallet private key safely.

The invention discloses a wallet. The wallet comprises a body, and a pin-hole camera, an alarm device and a satellite positioning device are installed on the body; the pin-hole camera, the alarm device and the satellite positioning device are all electrically connected with a power module fixed to the body. The wallet is simple in structure, a fingerprint coded lock is safe and reliable, the alarm device can make alarm sound to remind an owner when the wallet leaves the owner, and a lithium battery is small in size, durable, capable of being used for as long as 48 hours and quick to charge; the pin-hole camera is correlated to a mobile phone of the wallet owner at any moment, images are transmitted to the set mobile phone synchronously, if an outsider approaches the owner, the owner can make a video recording automatically by starting the camera, and pictures are sent to the associated mobile phone and a unit in charge; when the owner is robbed of or loses the wallet accidentally, the satellite position device can accurately judge the exact geographic position of the wallet, the wallet can be found in time, it is guaranteed that valuables of the owner are not lost, and personal safety is also guaranteed.

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 discloses an automobile electrical control box, comprising an upper cover and a base of the electrical control box. Two ends of a tie are respectively connected with the upper cover and the base of the electrical control box through bolts. The tie is a belt made of a flexible material, and the flexible material is a fiber braided belt or a rubber belt. Compared with the prior art, the present invention has the control that the upper cover and the base will not be lost after being detached.

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 discloses a pen barrel capable of preventing a pen cap from being lost. The pen barrel is characterized by being provided with a cylindrical barrel body and a base which is matched with the barrel body, wherein the bottom of the barrel body is provided with an insertion hole; the base is provided with a bolt which is inserted into the insertion hole; the barrel body is separably connected with the bolt through the insertion hole; and the bottom of the barrel body is hollowed and is provided with a thin wall. In the pen barrel capable of preventing the pen cap from being lost, the barrel body can be lifted from the base, and a pen cap port is upwardly attached to the wall of the pen barrel, so that a pen can be directly inserted into the pen cap in the pen barrel, and the pen cap is prevented from being lost; and when the pen cap is required to be carried out, only the barrel body is required to be lifted for taking the pen cap down.

The invention relates to a real-time voice storage system and method based on a digital signal processor (DSP) and a universal serial bus (USB). The real-time voice storage system comprises a voice signal collection module, a voice signal processing module and a voice signal storage module and is characterized in that the voice signal collection module comprises a preprocessing circuit and a voice coding and decoding module, the voice signal processing module comprises a DSP and a storage, and the voice signal storage module comprises a USB interface chip and a USB interface circuit. The real-time voice storage method is characterized in that more than 9 voice data buffer areas are adopted to store collected voice data, USB flash disk data buffer areas with the number at least two times that of the voice data buffer areas are adopted, and data stored in the voice data buffer areas are converted to be USB flash disk data. The real-time voice storage system has the advantages of being fast in storage, low in power consumption, small in volume, convenient to use and the like. The real-time voice storage method has the advantage of being high-speed, real-time and continuous in voice collection and storage, can achieve uninterrupted voice data collection without losing voice sampling points, and ensures voice recording integrity.

The invention discloses a modular data real-time acquisition and display system, and relates to the technical field of data real-time acquisition and display systems. The system comprises a data acquisition system module and a data display system module. The output end of the data acquisition system module is electrically connected with a data transmission system module. The inner side of the dataacquisition system module comprises a positioning rod and a logistics transmission code scanning port. A logistics transmission code scanning port is fixed to one side of the positioning rod, the logistics transmission code scanning port is connected with the positioning rod through a bolt, the data display system module is electrically connected to the output end of the data transmission systemmodule, and the output end of the data acquisition system module is electrically connected with a data cloud server. The system has the beneficial effect that by arranging the online data storage module, the online data backup module, the offline data storage module and the offline data backup module, dual data backup can be realized online and offline, and data loss is avoided.

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.