19results about How to "Avoid deletion" patented technology

The invention discloses a serial port data message queue processing method of gateway machine equipment and the gateway machine equipment, which adopt a Modbus protocol as a communication protocol, and store sensor data points with continuous register addresses, same read-write function codes and consistent four remote types in the same sensor into a processing data stack; the processing data heap is assembled into permanent Modbus message information; message processing instructions of the remote control information points or the remote regulation information points are assembled into temporary Modbus message information, and feedback information of the corresponding remote signaling information points and the corresponding remote measurement information points are also assembled into temporary Modbus message information; the Modbus message information is added into a Modbus message information processing queue of a serial port in a mode of combining regular traversal of a message storage pile and an upper computer instruction, and the serial port takes out the Modbus message information in the Modbus message information processing queue one by one for message processing. According to the method, the timeliness of temporary Modbus message information processing is considered while the permanent Modbus message information processing regularity is realized.

The invention belongs to the technical field of gene engineering, and discloses sgRNA for pedigree tracing of a targeted Rosa26 gene, the sgRNA comprises sgRNA1, sgRNA2, sgRNA5, sgRNA6 and sgRNA7, and the nucleotide sequences of corresponding DNA double strands of the sgRNA1, the sgRNA2, the sgRNA5, the sgRNA6 and the sgRNA7 are sequentially shown as SEQ ID NO: 1-2, SEQ ID NO: 3-4, SEQ ID NO: 5-6, SEQ ID NO: 7-8 and SEQ ID NO: 9-10. The sgRNA can target a mouse Rosa26 gene, is combined with a CRISPR / Cas9 targeting vector, and can cut different sites of the Rosa26 gene to generate different bar codes, the diversity of the obtained bar codes can be used for reconstructing a cell lineage and tracing the cell lineage, meanwhile, the transcription of the Rosa26 gene is not influenced after cutting, and the cell lineage relationship can be comprehensively tracked in a complex cell system.

This invention relates to the field of pattern recognition technology and discloses a method and system for evaluating and correcting phase factors based on numerical weather prediction. The method includes: collecting numerical weather prediction data for a target area at the current forecast lead time, and obtaining historical initial phase forecast results and current phase data; performing phase pattern recognition processing to determine the phase transition zone based on the current initial phase forecast results and wet-bulb criticality; performing phase boundary offset comparison to obtain the phase boundary offset direction and correction buffer zone; marking freezing rain protection candidate grid points; prohibiting the deletion of freezing rain protection candidate grid points as spatially isolated anomalies when they are located within the correction buffer zone; and performing freezing rain protection correction on the freezing rain protection candidate grid points to obtain the corrected phase forecast results. This application improves the retention capacity and correction accuracy of freezing rain risk grid points within the phase transition zone, and enhances the stability of phase forecast results.

The invention relates to the field of data processing technology, and in particular to a method for fast OCR recognition of bank flow, comprising: using an OCR recognition model to recognize text blocks of a table of bank flow to obtain sub-text blocks surrounded by text boxes, adding sub-text blocks of a table header to vec_head and segmenting the sub-text blocks of the table header or performing a primary determination on the sub-text blocks of the table header, adding sub-text blocks of a row below the table header to vec_head_double, determining a table type, and performing a secondary determination on sub-text blocks of a current row of details to determine whether a single sub-text block in the current row of details belongs to a single sub-text block in vec_head_double, determining whether a single sub-text block in the current row of details belongs to a single sub-text block in vec_head, and determining a division method for sub-text blocks of the current row of details. The invention overcomes the problem in the prior art that different formats of bank flow tables have no horizontal and vertical lines to assist the table in recognition, resulting in poor adaptability to table recognition and poor recognition accuracy.

The application discloses a data sharing method, which can realize safe and reliable data sharing based on a blockchain technology. The data sharing method comprises the following steps: in the case that a first user requests to share target data, a SIM card of the first user acquires a first authentication credential from a blockchain node, the first authentication credential being generated by the blockchain node based on an authentication key and user information of a second user stored in the blockchain; the SIM card of the first user encrypts the target data based on the first authentication credential and a private key of the first user, and obtains a first ciphertext; and the SIM card of the first user sends the first ciphertext to a SIM card of the second user.

The invention discloses a software validity maintenance method and device, electronic equipment and a storage medium, and the method comprises the steps: responding to target software to quit an operation state, encrypting operation data of the target software, storing the operation data in a target sector in a hard disk, and locking the target sector; in response to the operation state of the target software, reading operation data of the target software from the target sector; based on the license information of the target software and the operation data of the target software, judging whether the target software meets an operation condition or not; and if the target software meets the operation condition, continuing to operate the target software. The authenticity of the operation data of the target software can be ensured, and then the effectiveness of the target software is accurately maintained.

The embodiments of the present disclosure disclose a method, device, electronic device and storage medium for saving and reading virtual machine snapshots, wherein the method for saving virtual machine snapshots includes: creating a backup directory based on a backup disk; soft linking the backup directory to a virtual machine snapshot storage running directory; obtaining a virtual machine snapshot of a virtual machine running to a specific state, wherein the virtual machine snapshot is stored in the backup directory through the virtual machine snapshot storage running directory; splitting the virtual machine snapshot to obtain at least two split files; obtaining an index file based on the at least two split files, wherein the index file includes the snapshot name of the virtual machine snapshot, and the order and file name of each of the split files; encrypting the index file; deleting the virtual machine snapshot; uninstalling the soft link in the virtual machine snapshot storage running directory pointing to the backup directory; and setting the backup directory to a read-only state.

The present disclosure provides a watermark generation method, an agent device, an electronic device and a storage medium, the method comprising: in response to receiving a download request sent by a browser, obtaining a first file corresponding to the download request from a server; adding a first watermark to the first file to obtain a first watermark file; the first watermark at least includes first user information; exporting the first watermark file as a second watermark file, and exporting the second watermark file as a third watermark file; the format of the second watermark file is an image format; determining a jump uniform resource locator based on the third watermark file, and sending a 302 instruction to the browser based on the jump uniform resource locator; in this way, it is possible to avoid the editor from deleting the watermark by deleting the layer, thereby improving the watermark anti-deletion capability.

The invention discloses a block chain-based smart building data sharing method, system and device, and a medium, mainly relates to the technical field of building data sharing, and is used for solving the problems that a centralized data storage mode is easy to become an attack target, and a smart building relates to privacy and has privacy leakage. Comprising the following steps: acquiring collection data of Internet of Things equipment in a smart building; carrying out encryption processing on the collected data to obtain encrypted private data; uploading the encrypted privacy data and a decryption algorithm name of the encryption algorithm in a preset encryption level database to a block chain network; when any block chain node receives a data access request, determining a corresponding open user permission based on the carried user information; and calling a preset encryption level database retrieval interface, inputting a decryption algorithm name, entering a decryption algorithm operation interface, importing the encrypted privacy data, and obtaining the decrypted acquisition data.

This application provides a table entry management method and apparatus, relating to the field of communication technology and applied to network devices. The method includes: setting a hardware MAC address table to prevent aging; executing a software table entry polling task to poll each storage location of the software MAC address table; the software table entry polling task performing a logical AND operation between the authentication type of the first software MAC address table entry at the polled storage location and an aging filter bitmap mask; wherein the aging filter parameter bit of the aging filter bitmap mask is set to a binary value of 1; determining that the corresponding bit of the aging filter parameter bit in the logical AND operation result has a binary value of 1, identifying that the first software MAC address table entry matches the aging filter parameter; and polling the next storage location of the software MAC address table to skip the aging deletion process of the first software MAC address table entry. This solution can solve the problem of user terminals being online, but hardware MAC address table entries being aged, thus improving the user's internet experience.

The present application discloses a method, device, equipment and medium for deleting fingerprint fracture feature points. The method comprises: acquiring a fingerprint image; processing the fingerprint image to obtain a feature point image, wherein the feature points in the feature point image include the breakpoints and / or bifurcation points of the fingerprint; traversing the breakpoints and / or bifurcation points to determine whether the feature point image contains feature points corresponding to the fracture of the fingerprint; if so, deleting the feature points corresponding to the fracture of the fingerprint. The method solves the problem that when deleting a fingerprint fracture, the accuracy of the determined fingerprint fracture position is low, resulting in the mistaken deletion of normal fingerprint information.

A traffic tracking and detection system for drones. It belongs to the field of target tracking technology, and specifically to the field of lightweight target detection and tracking technology for intelligent transportation and drones. The system includes a target detection module, a target motion trajectory matching module, and a target motion trajectory output module; the target detection module processes the video frame image to obtain the detection frame corresponding to the tracked target and the confidence score corresponding to each detection frame; the target motion trajectory matching module divides the detection frame according to the confidence score, and matches the detection frame with the predicted trajectory after division; the target motion trajectory output module outputs the predicted trajectory as a confirmed trajectory after the same frame detection frame is successfully matched with the predicted trajectory for three consecutive times in the target motion trajectory matching module. It solves the problem of low tracking accuracy caused by the existence of small-sized targets, complex backgrounds, and occlusion in the previous drone tracking of targets.

The invention provides a data management method, a server and a storage medium, and belongs to the technical field of data processing.The method comprises the steps that in response to an operation request for any target attachment, a unique identifier of the target attachment is determined; according to the unique identifier, querying attachment information corresponding to the target attachment from an attachment table; updating a reference count in the attachment information, wherein the reference count is used for representing the number of times that the target attachment is referenced by the business entity; according to the operation request, a reference relation table of the target attachment is updated, and the reference relation table is used for recording the incidence relation between the service entity and the attachment. In this way, for one attachment, the server only stores the data stream in the attachment once, redundant storage caused by repeated copying of the same attachment is avoided, the number of times that the attachment information is referenced by the service entity is recorded through the number of times of reference, so that when deletion operation is executed, the number of times of reference of the attachment is used as a reference, deletion of the currently referenced attachment is avoided, and user experience is improved. Accessories are prevented from being deleted by mistake, and a data management mode is optimized.

The invention belongs to the field of computer information processing, and particularly discloses a load balancing security log system and a management method thereof, and the system comprises a log server, an access application program interface and a configuration tool; the application program access interface is used for providing an API (Application Program Interface), so that an external application sends an instruction to the log server by accessing the API to carry out log processing; the configuration tool is used for configuring parameters of the log server, and the parameters comprise the maximum entry of log storage, the maximum entry of repeated logs, log viewing configuration parameters and log writing configuration parameters; and the log server is used for executing log configuration modification, log writing, log reading and legality check in response to the input instruction according to the configuration parameters of the configuration tool in combination with the input instruction for accessing the application program interface so as to ensure effective management and storage of logs. According to the invention, the security of the log system can be improved and the system performance optimization can be realized.

The invention relates to the technical field of vehicle fault information management, and discloses a vehicle fault information management system based on a cloud platform, which comprises a vehicle data acquisition module, a vehicle data analysis module, a cloud server and a fault output unit. According to the automobile fault information management system based on the cloud platform, fault data are fed back to maintenance personnel or a driver through a display screen of the fault output unit, and related abnormal values are directly fed back to the driver, so that the driver can intuitively know related fault problems of the automobile according to the abnormal values; a driver can feed back the mastered related fault problems to maintenance personnel, and the maintenance personnel can prepare corresponding maintenance materials according to the fault information provided by the driver, so that in the rescue process, the maintenance personnel can be assisted to quickly maintain the faulty vehicle, and the vehicle maintenance and rescue time is shortened.

The invention relates to the technical field of data intelligent transmission in a time sensitive network, in particular to a data transmission optimization method, a TSN communication device and a chip. The method comprises the following steps: determining a frame arrival frequency difference value of each transmission path pair to calculate the frame arrival frequency of the path for each transmission path pair, determining an average frame arrival frequency difference value and a maximum frame arrival frequency difference value according to the frame arrival frequency difference value of each transmission path pair, and further determining an average frame arrival number difference value Navr and a maximum frame arrival number difference value Nmax in a specified time period; and setting the length W of the historical cache vector to be greater than or equal to Navr and less than or equal to Nmax, so as to perform frame elimination on the service data frame by using the historical cache vector with the length W in a specified time period. According to the method, the length of the historical cache vector can be dynamically set, and effective data units are prevented from being mistakenly deleted as much as possible.

The present invention provides a civil aviation information management system based on blockchain, including: an information service content acquisition module for acquiring information service content; an information conversion module for converting information service content according to an information exchange model to obtain information service data; a network connection module for synchronizing information service data to any node of the blockchain; a request information acquisition module for acquiring request information of an authorized user; a data management module for analyzing the corresponding data extracted from the node of the blockchain according to the request information to obtain output data; and an output module for displaying output data to authorized users. It can be seen that in the present invention, since the data on the blockchain cannot be tampered with, it can prevent the data from being maliciously or unauthorizedly deleted or modified, thereby destroying the integrity of the information, and at the same time avoid the server jamming and crashing phenomenon caused by hackers sending overload requests to the server, thereby improving the reliability of the entire civil aviation information management system.

The invention discloses a data sharing method, which can realize safe and reliable data sharing based on a block chain technology. The data sharing method comprises the steps that under the condition that a first user requests to share target data, an SIM card of the first user obtains a first authentication credential from a block chain node, and the first authentication credential is generated by the block chain node based on an authentication key and user information of a second user stored in a block chain; the SIM card of the first user encrypts the target data based on the first authentication credential and a private key of the first user to obtain a first ciphertext; and the SIM card of the first user sends the first ciphertext to the SIM card of the second user.

The invention belongs to the technical field of camera calibration, and discloses a method, a device and equipment for automatically deleting an abnormal picture for calibration and a medium, and the method comprises the steps: obtaining an internal parameter and an external parameter of a camera module; acquiring all actual feature points of the chart image, projecting the actual feature points to the chart image by using the internal reference and the external reference of the camera module, and acquiring predicted positions of the actual feature points; acquiring an actual position of the actual feature point, calculating a first mean value of projection errors between the predicted position and the actual position, calculating a second mean value of projection errors of all the chart images, and calculating a difference value between the first mean value and the second mean value of the chart images; and comparing the difference value with a preset threshold value, and if the difference value is greater than the preset threshold value, deleting the chart image. According to the method and the device, normal error pictures are prevented from being deleted, the problem of adverse effects of abnormal pictures on camera module calibration is solved, and the calibration precision and accuracy of the camera module are improved.