27 results about "Flag field" patented technology

The invention discloses a congestion information notification method, device and system, and belongs to the technical field of communication. The method executed by a receiving end comprises the following steps: receiving a first message transmitted by a transmitting end through a first transmission path; a second message corresponding to the first message is returned to the sending end through a second transmission path, the second message carries target congestion information, the target congestion information is used for indicating the congestion degree of the first transmission path, at least one of the first message or the second message carries a congestion mark field, and the congestion mark field is used for indicating the congestion degree of the first transmission path. The congestion mark field is used for indicating whether the congestion information carried by the message is updated or not.

A display apparatus and a display method are disclosed. The display apparatus includes: a display, configured to display an image and / or a user interface; an external device interface, configured to connect an external device; at least one processor, configured to execute instructions to cause the display apparatus to: obtain a first command input from a user for switching a viewing angle ratio; obtain audio and video meta information of the external device, and parse a flag field in the audio and video meta information; send declaration information to the external device according to the first command in response to the flag field being identical to a determination field; receive video data returned from the external device for the declaration information, where an image ratio of the video data is equivalent with the switched viewing angle ratio; and control the display to display the video data.

A system and method for a protocol parser that has native support for parsing TLVs and flag-fields and allow users to code in a language convenient to them and leverage standard tool chains and tools. The same parser source can be compiled to arbitrary software and hardware targets without code change and provide the highest performance possible given its capabilities.

A method for transporting a Multi-Transport Network Context Identifier (MTNC-ID) over a Segment Routing Version 6 (SRV6) enabled data plane for fifth generation (5G) transport. The method includes setting an indicator in a flags field of a SRV6 header of a data packet that an MTNC-ID type-length-value (TLV) is included in a TLV field of the SRV6 header. The MTNC-ID TLV for the MTNC-ID is inserted in the TLV field of the SRV6 header of the data packet. The data packet with the SRV6 header containing the MTNC-ID is transmitted over the SRV6 enabled data plane to a next node along a forwarding path corresponding to the MTNC-ID.

The present application provides a receiving end and communication system for a wireless broadband signal, the receiving end comprising: a plurality of channel processing modules, a channel selection module and a data processing module, wherein: the channel processing module is used to perform predetermined processing on the initial data output by the channel to obtain a data packet; the channel selection module is communicatively connected to the plurality of channel processing modules, the channel selection module is used to receive target data sent by the channel processing module, and selects a target data according to the priority of the successfully synchronized channel processing module and sends it to the data processing module, the target data being a part of the data packet, and the target data comprising a flag field and a data field; the data processing module is communicatively connected to the channel selection module, the data processing module is used to receive the target data sent by the channel selection module, and parse the target data to obtain a parsing result, thereby solving the problem in the prior art that it is difficult to detect the usage of channels other than the main channel.

This invention discloses a stream-based real-time log analysis and alerting method, apparatus, and related equipment. The method includes: collecting log data generated by different security devices; adding a flag field to each collected log data; formatting the log data according to the flag field; normalizing the formatted log data using a streaming processing framework; caching the normalized log data according to a preset matching scheme; determining whether the number of cached logs of the same statistical dimension reaches a preset threshold; if so, determining whether the generation time of all log data reaching the preset threshold exceeds a preset observation time range; and generating an alert if so. This method can solve the problem of log consumption capacity being less than log generation speed, significantly improving the analysis efficiency of attack log data and achieving more efficient log processing and alerting.

The invention provides a UFS command priority scheduling processing method and device, electronic equipment and a medium, and relates to the technical field of scheduling processing, and the method comprises the steps: receiving a command from a host; classifying the commands according to priority types and logic unit types and mapping the commands to corresponding command queues based on command attributes obtained by analyzing UFS protocol information unit flag fields of the commands and device descriptor configuration information; determining a command execution sequence based on a preset dual priority rule; and taking out the commands from the command queue based on the command execution sequence and submitting the commands to the flash translation layer for processing. In the mode, the key command is prevented from being delayed to be executed for a long time, so that the overall performance and stability of the system are improved.

A method implemented by a network edge node including adding a first header including a flags field and a data field including a first metadata to a first packet. The network edge node sets a first flag in the flags field of the first header to a first value to indicate that the first packet is a forward flow packet. The network edge node transmits the first packet towards a second network edge node. The network edge node receives a second packet including the first metadata in the data field and a second flag in the flags field set to the first value to indicate that the second packet is a reverse flow packet. The network edge generates a second metadata corresponding to receipt of the second packet and transmits an export message that includes the first metadata and second metadata toward a controller.

The invention discloses a CCSDS (Consultative Committee for Space Data System) protocol security enhancement method based on an application layer feedback chain, which comprises the following steps: setting a packet auxiliary guide header of a CCSDS source packet as a security metadata area to obtain a security extension packet structure, the security metadata area at least comprising a reset flag bit field and an integrity check code field; based on the CCSDS source packet, obtaining an initial calculation sequence by extracting a specific field comprising an application process identifier, a packet sequence count and packet data field total load data; based on the initial calculation sequence, performing stream reading and iterative calculation by taking 32-bit as a single processing step length to obtain a hash operation result; based on the Hash operation result, historical feedback factors are injected and confused, and an intermediate processing result is obtained; and based on the intermediate processing result, acquiring an updated integrity check code and filling the security metadata area with the updated integrity check code.

This application discloses a WAL log compression method, device, and medium under PostgreSQL streaming replication, belonging to the database field. The method includes: reading configuration parameters and establishing a streaming replication connection when the master database starts up, obtaining network I / O load values ​​in real time, and calculating the predicted WAL log generation rate based on the transaction processing rate to estimate future bandwidth requirements. When the network I / O or predicted bandwidth requirements reach a preset threshold, samples of the original WAL log data are extracted and compared using multiple algorithms for rapid compression. The optimal compression algorithm is dynamically selected for adaptive compression processing, and the corresponding compression flag field is set; otherwise, the data is transmitted directly in an uncompressed manner. The standby database completes the corresponding decompression or direct writing by parsing the compression flag field. This invention achieves a dynamic balance between network bandwidth and CPU resources through a dual mechanism of load prediction and content awareness, effectively reducing master-standby replication latency and improving the adaptability and overall operating efficiency of the streaming replication system in complex production environments.

Embodiments of the present application provide a data state-based timing task data processing method and device, equipment and a storage medium, relating to the technical field of data processing. The method comprises: obtaining first state data from a database according to a first table through a first process; transferring the obtained first state data from the first table to a second table through the first process; sending the second state data to a second process through the first process; processing the second state data based on a preset task through the second process; and transferring the processed second state data from the second table to a third table through the first process, so that the second state data is converted into third state data. The embodiments of the present application avoid the disadvantages caused by using a flag field to identify the processing state of data in a data table, and reduce the time consumption when searching for unprocessed data in the data processing process.

This invention provides a method and system for secure firmware upgrades of electricity meters. At the master station, an upgrade package is constructed, consisting of a structured header, firmware payload, authentication tag, and digital signature. The structured header includes a specially configured extensible flag field to flexibly define the context parameter combinations, security policies, and compression policies involved in encryption operations, improving upgrade compatibility. At the device end, all core security operations, such as signature verification, key derivation, and decryption authentication, are executed independently by a secure element, and the keys are never exposed, fundamentally preventing key leakage and unauthorized tampering. The overall solution, through multiple pre-verification checks combined with encryption authentication, digital signatures, and CRC checks, forms an end-to-end, multi-layered protection system, comprehensively ensuring the confidentiality, integrity, source credibility, and device compatibility of firmware upgrades. It effectively resists various attacks and significantly improves the security, reliability, and operational stability of electricity meter firmware upgrades.

The invention relates to the technical field of Internet of Things communication, and provides an alarm event processing method and system for an intelligent street lamp. The method comprises the following steps: acquiring a data frame from a LoRa node; identifying the type of a data frame according to the frame header feature, judging the data frame as a local alarm instruction frame when the data frame starts from a first preset function code, and judging the data frame as an uplink sensor data frame when the data frame starts from a second preset frame header and ends at a third preset frame tail; analyzing the local alarm instruction frame to obtain a function code, an equipment identifier and a state flag field, and after the function code, the equipment identifier and the state flag field are matched with a pre-stored alarm rule, directly controlling the GPIO pin to drive or turn off the alarm equipment by the main control MCU; stripping a frame header and a frame tail of an uplink sensor data frame to obtain an effective load, performing byte order conversion on a multi-byte numerical value, and sending the multi-byte numerical value to a PC management platform; according to the invention, millisecond-level local instant alarm is realized, the network dependence is reduced, and the platform processing pressure is relieved.

The embodiment of the invention provides a data transmission method and device and a cache verification device. The data transmission method comprises the following steps: acquiring to-be-transmitted data; the to-be-transmitted data comprises a flag field packet and a corresponding operation data packet; the flag field packet comprises transmission time interval information, and the transmission time interval information indicates the flag field packet and a transmission time interval of the corresponding operation data packet; the transmission time interval information is configured based on at least one buffer queue empty mark, and the clock period of the interval between adjacent buffer queue empty marks is dynamically changed; and transmitting the flag field packet and the corresponding operation data packet according to the transmission time interval. According to the invention, the waiting time required for transmitting the flag field packet and the corresponding operation data packet is shortened, the waste of clock resources is reduced, and the data processing performance of a CPU (Central Processing Unit) is improved.

The invention relates to a communication method and device suitable for a distributed collaboration framework and a medium, and the method is applied to a first node, and comprises the steps: receiving an information message transmitted by a second node through a first protocol; analyzing the information message based on a first protocol rule to obtain a message type field and a communication quality grade flag field in the information message; and responding to an instruction represented by the value of the message type field, and executing or not executing reply of a response message to the second node according to the value of the communication quality level flag field. Thus, the instruction is responded based on the value of the message type field, diversified communication requirements can be met, and various complex communication scenes can be flexibly coped with; whether a response message is replied to the second node or not is determined according to the value of the communication quality level mark field, that is, a communication strategy is flexibly adjusted according to different conditions of communication quality; therefore, different instructions can be flexibly responded, and whether the response message is replied or not is determined according to the communication quality.

The invention provides a network fault recovery method and device and a readable storage medium. The method comprises: receiving a first message sent by a first device in a communication link, the first message being obtained by the first device adding a first mark value to at least one first bit position in a link management message of the first device according to a detection result of at least one fault detection protocol, the first bit positions are reserved bit positions of a flag field in the link management message, and the first bit positions are in one-to-one correspondence with fault detection protocols; receiving a second message sent by the first device; and according to the first message, determining a target fault recovery strategy from at least one common fault recovery strategy carried by the second message, and generating a third message carrying the target fault recovery strategy, so that equipment in the communication link executes the fault recovery strategy. According to the invention, the fault recovery efficiency can be improved.

The invention discloses a templated instrumentalized storage service interface adaptation method. The method comprises the following steps: firstly, constructing a cloud storage-oriented storage service adapter consisting of a service adaptation guide module, a service adaptation constraint module and a service adaptation arrangement module; the service adaptation guide module sends a template selection instruction, a template modification instruction or a template jump instruction to the service adaptation constraint module; the service adaptation constraint module obtains a path where a template is located according to a template selection instruction, opens the template, changes an attribute value corresponding to a matching field in the template according to a template modification instruction, highlights a mark field in the template according to a template jump instruction, receives a to-be-adapted storage service interface calling code, and complements a highlighted code segment according to the code; an arrangement sub-module selector in the service adaptation arrangement module selects an arrangement sub-module, the arrangement sub-module arranges functions and structural bodies into necessary and optional functions and sends the necessary and optional functions to a storage service adapter, and the storage service adapter completes adaptation. The method is high in adaptation efficiency and low in adaptation difficulty.

The invention relates to the technical field of communication, in particular to a communication method and device. The method can be applied to the IEEE 802.11 ax standard, the 802.11 be standard, the 802.11 bn standard and the like and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11 bf standard, the IMMW standard or the star flash standard and the like. According to the invention, a new flag sequence is designed, and the flag sequence can reduce the PAPR of the flag field. The first N elements or the last N elements in the mark sequence meet the condition that the jth element in the N elements is the same as the first element in the N elements, or the jth element and the first element are opposite numbers, and the elements are 1 or-1.

The invention relates to the technical field of communication, in particular to an SRv6 source address and a network slice configuration management method and system based on the SRv6 source address. The SRv6 source address sequentially comprises a slice prefix field, a node identification field, a filling field, a slice channel bandwidth field, a strict mode flag field, a slice channel enable bit flag field and a slice instance field from front to back; wherein each slice instance is configured with or not configured with a slice channel bandwidth value, and during configuration, the slice channel bandwidth value is written into a slice channel bandwidth field; the strict mode flag field is located at the 32th bit from the last of the SRv6 source address, the slice channel enable bit flag field is located at the 31st bit from the last of the SRv6 source address, and the slice instance field is located at the 30th bit from the last of the SRv6 source address. According to the invention, slice channel deployment and bandwidth configuration are enabled at the head node, full-link slice channel deployment is realized, the problem that the head node hopes message slice layering is solved, and message discarding caused by intermediate node configuration missing is avoided.

This disclosure provides a bidirectional data migration method applicable to the field of information security technology. The method includes: monitoring whether log information in a source database has changed; if the log information has changed, acquiring changed data from different data tables in the source database, wherein the changed data includes flag fields; changing the flag fields in the changed data; converting the changed data into a change statement, wherein the change statement is executable at least in the target database; and if the flag fields in the change statement are not default values, performing a migration operation with the target database based on the change statement. This disclosure also provides a bidirectional data migration apparatus, device, storage medium, and program product.

The invention discloses a DNS (Domain Name Server) NSEC (Network Security for Communication) traffic classified storage method, which comprises the following steps of: acquiring DNS messages, judging whether the messages are request messages or response messages, and judging and classifying different messages; extracting a request type and a mark field of the request message, and storing the message meeting the requirement; extracting request area types, response types and mark fields of the response messages, judging whether the request area types, the response types and the mark fields meet set requirements or not, and classifying the response messages meeting the requirements; obtaining a destination ip address of the response message and a parent domain name of the current message, searching table entries of the response message in the hash table, and dividing the response message into three types according to the content of the table entries; respectively constructing processing strategies of the three types of messages, indexing the NSEC, forming different types of NSEC index tables, and completing classification and storage of the DNS messages; according to the method, the type of the DNS NSEC traffic can be judged, the classification accuracy of the DNS NSEC abnormal traffic is improved, different indexing methods are designed, the NSEC traffic can be quickly indexed, and the retrieval performance is improved.

Embodiments of the present application relate to the field of communication, and disclose a seamless bidirectional forwarding detection method and system, a node and a storage medium. In the present application, the bit position of the Flags field in the SRH header of the SBFD probe packet is preset, so that the node / device receiving the target IPv6 packet in the transmission process can identify that the target IPv6 packet carries the SBFD probe packet, and then the node can modify the link addresses corresponding to each node in the transmission path recorded in the SRH header corresponding to the SBFD probe packet, so that the SBDF probe packet reaches the reflection node, and the reflection node can generate a corresponding backhaul path according to the modified transmission path, thereby realizing the consistency of the coming and going paths.

A format conversion and application method for SOC DFT burn-in vectors includes: S1, generating multiple original vectors in an STIL format, and setting a timeplate corresponding to each original vector; performing primary simulation, and preliminarily modulating each original vector according to a simulation result; S2, converting, by a format conversion tool, each original vector into a vector in a flat format; S3, according to each format feature, extracting corresponding vector data, and performing character substitution; S4, aligning data bits within a fixed length of the vector data subjected to character substitution, adding a corresponding data flag field at the end of each piece of vector data, and splicing all the vector data to form a complete stimulus data source; and S5, loading, by a test tool, the stimulus data source to carry out a burn-in test. The method can carry out a burn-in test quickly by vector format conversion.

The invention discloses a method and a device for dynamically aging a forwarding table. The method comprises the following steps of: S1, setting a time field and an aging flag field in a forwarding table entry; s2, a global control table Tblglobalctrl is configured, wherein the Tblglobalctrl comprises a dynamic enabling field, an aging control agingctrl value field and a time threshold value field, and the Tblglobalctrl comprises a time threshold value field and a time threshold value field; s3, enabling a dynamic aging function through a dynamicagingene field of the Tblglobalctrl (Tblglobalctrl), and enabling a dynamic aging function through a dynamicagingene field of the Tblglobalctrl; s4, when the flag field value is smaller than or equal to the agingctrlvalue field value, starting a counting function, namely adding 1 to the time field value in the corresponding entry every time the entry in the forwarding table is inquired, otherwise, closing the counting function, and not executing any operation; s5, when the time field value is larger than the time threshold field value, the flag field value is increased, the time field value is reset, and otherwise, no operation is executed; and S6, when the flag field value in the forwarding table entry is 0, aging the corresponding entry through the aging task engine.

The present disclosure relates to a data processing method, device, electronic equipment, medium and product, the method comprising: in response to an opening request for a target page, obtaining at least one first flag field corresponding to an initial content unit set, the initial content unit set being a set of content units to be displayed in list data of the target page; determining whether a second flag field identical to the at least one first flag field exists in a local pre-stored database, and if so, taking the second flag field as a target flag field, wherein the local pre-stored database stores content unit data corresponding to the second flag field; obtaining target content unit data corresponding to the target flag field from the local pre-stored database; and rendering the target page based on the target content unit data. Thus, the display state of blank or no data when the user browses is avoided, the user can directly browse to the effective content without waiting, and the user experience is effectively improved.

A method, system, and computer program product are provided for preventing malicious code injection during Initial Program Load (IPL). A secure code loading attributes block (SCLAB) is appended to a variable sized signed binary code component to generate a combined component. The variable sized signed binary code component is Operating System (OS) code for an initial program load (IPL) process. The SCLAB comprises contents that include a length field, an identifier, flag fields, a load program status word (PSW) and a load address. The combined component is digitally signed. During IPL, the unsigned component table entries associated with the signed component are verified against the SCLAB contents.

The invention provides a communication method and system based on J-Link, an electronic device and a storage medium, an upper computer assembles target data to obtain a target data frame, and the target data frame accords with a modbus-RTU protocol identification format and comprises a frame header, a mark field, a data field and a verification field; the target data frame is sent to a DCC data register of a lower computer through a J-Link debugger; a DCC state register value of the lower computer is read through a J-Link debugger at regular time; in response to the DCC state register value being a first preset value, reading a response data frame in the DCC data register through a J-Link debugger; and according to a modbus-RTU protocol, analyzing the response data frame to obtain target response data. Therefore, on an embedded device with a J-Link interface, an additional RS485 interface or a CAN interface or a USB interface does not need to be added, the communication function of the upper computer can be achieved through the user-defined communication protocol, and the hardware cost can be saved.