37results about How to "Avoid data loss" patented technology

The invention relates to the technical field of electronic digital data processing, in particular to a memory bank initialization failure processing method which comprises the following steps: judging whether a memory bank fails to be read or not, if an error memory signal is detected, indicating that the memory bank fails to be read, and marking the memory bank as a memory bank to be detected; running state data, including memory bank performance data and aging condition data, of the to-be-tested memory bank is collected, and a memory bank performance evaluation index and a memory bank aging degree evaluation index are obtained through comprehensive analysis; and comprehensively analyzing to obtain a memory bank exception evaluation index, judging whether the memory bank has a fault according to the memory bank exception evaluation index, and processing the memory bank according to a judgment result. According to the method for processing the initialization failure of the memory bank, provided by the invention, data loss can be prevented, data security can be guaranteed, and system stability and performance optimization can be improved, so that dissatisfaction and troubles caused by system problems of users can be reduced, and the satisfaction degree of the users can be improved.

The invention relates to the technical field of servers, in particular to a server hardware state monitoring and alarming device which comprises a shell, a controller and an alarming module, sliding grooves are formed in the two sides of the shell, and a first monitoring module and a second monitoring module are arranged in the sliding grooves; the first monitoring module comprises a first monitoring plate, the first monitoring plate is provided with a mounting port and a mounting chamber, the bottom wall of the mounting chamber is provided with a vertical rod, the vertical rod is provided with a first spring, the first spring is connected with a mounting plate, the mounting plate is fixedly connected with a limiting ball, a bimetallic strip is arranged in the mounting chamber, and the bimetallic strip is in contact with the mounting plate to form a series circuit; when the transmission line at the transmission port is loosened, the mounting plate is in contact with the bimetallic strip, the series circuit is connected, the controller receives a circuit signal, and the alarm module is started; when the operation temperature is too high, the controller receives abnormal monitoring data of the second monitoring module, and the alarm module is started. The invention aims to improve the monitoring level of the hardware state of the server and guarantee the stable operation of the server through a real-time monitoring and automatic alarm mechanism.

The invention relates to the technical field of torque calculation, in particular to a torque adaptability regulation and control method and system for an electric power-assisted bicycle, and the method comprises the steps: receiving a torque regulation instruction, starting a system regulation unit based on the torque regulation instruction, collecting a side-sway angle and a side-sway angular velocity, calculating transmission delay, and if the transmission delay is not in a delay range, starting the system regulation unit; if the transmission delay is within the delay range, screening the transmission data packet set to obtain a standard data packet set and an over-limit data packet set, adjusting the over-limit data packet set to obtain an adjusted data packet set, and obtaining an integrated data packet set based on the standard data packet set and the adjusted data packet set; and if not, calculating an external interference estimated value, calculating a side-sway angular acceleration by using the external interference estimated value, calculating a side-sway torque and an offset torque, calculating a regulation and control torque according to the side-sway torque and the offset torque, and completing torque adaptive regulation and control according to the regulation and control torque. According to the invention, the regulation and control speed and accuracy of torque adaptive regulation and control can be improved.

The invention discloses a dual-channel system for an inspection robot and a communication method, and ensures stable communication of the inspection robot in a complex and severe environment by adopting a dual-channel design. According to the technical scheme, redundancy guarantee is provided through two independent wireless paths. When one path breaks down or the signal quality is reduced, the system can be automatically switched to a redundant channel, the problems of signal interruption and data loss frequently occurring in a traditional communication system are avoided, and therefore the continuity of inspection tasks and reliable transmission of data are guaranteed. The dual-channel system provided by the invention not only solves the problems of unstable communication and signal interruption in the prior art, but also improves the reliability and efficiency of data transmission, ensures the stable operation of the inspection robot in different complex environments, and greatly enhances the intelligent level and safety of industrial inspection operation.

The invention provides an AR (Augmented Reality) application method and system based on Bentley software modeling. According to the method, a DGN file is converted into an iModel file through Bentley View, and a model analysis program is developed by utilizing iModel.js, Node.js and Typescript. The analysis process comprises the steps of obtaining a model database snapshot, traversing a physical object, obtaining geometric and material information and attribute information, and finally outputting a GLTF file to be loaded by an AR application. According to the method, the DGN data is converted into the data type which can be identified by the AR application in a low-cost and lossless analysis mode, the application scene of the AR is expanded, and the modeling efficiency and the information accuracy in the AR application are improved.

The invention provides a single-key startup and shutdown system and an electronic product, and relates to the field of startup and shutdown circuits. The single-key startup and shutdown system comprises an input power supply interface, an output power supply interface, a first electronic switch, a first resistor, a second electronic switch, a third electronic switch, a key body, a power supply circuit module and a micro-control unit. A user can change the state of the first electronic switch by controlling the single key body, and then the first electronic switch is used for controlling on-off of a circuit between the input power interface and the output power interface. Compared with a mechanical switch, the first electronic switch is adopted to control power supply, the problem of arc ablation does not exist, the safety is better, the service life is longer, and the cost is lower. In the shutdown process, enough time can be reserved to make preparation work for shutdown, the situation that power is directly cut off under the condition that software and hardware are not prepared is avoided, data loss and system errors are not prone to occurring, and reliability and safety are improved.

This application provides a data transmission method, a network interface card (NIC) for a data receiving end, an electronic device, and a storage medium. The data transmission method is applied to the NIC of the data receiving end. The NIC writes data to the host memory of the data receiving end via a bus. The data transmission method includes: if the bus bandwidth resources required for the NIC to write the target data to the host memory exceed the bus bandwidth resources available to the NIC, then writing a portion of the target data to the NIC's NIC buffer; the NIC buffer includes a first memory buffer configured for the NIC based on its on-chip memory and a second memory buffer configured for the NIC based on its onboard memory; the data sending end sends the target data to the data receiving end via remote direct memory access; and a portion of the data is written from the NIC buffer to the host memory. The solution of this application can better avoid data packet loss problems when facing sudden traffic surges.

The application provides a vehicle hibernation method, medium, vehicle and product, relates to the technical field of vehicle control, and the method comprises the following steps: generating a hibernation preparation instruction and sending the hibernation preparation instruction to an electronic control unit on the vehicle under the condition that the vehicle meets hibernation conditions; receiving confirmation information fed back by the electronic control unit based on the hibernation preparation instruction, performing state detection on the vehicle based on the confirmation information, and obtaining a detection result; wherein the confirmation information is used to indicate that the electronic control unit has completed a hibernation preparation task indicated by the hibernation preparation instruction; and if the detection result indicates that the vehicle is in a standby state, performing a whole-vehicle hibernation operation. The technical scheme of the application sends a hibernation preparation instruction to the electronic control unit first, so that the electronic control unit has sufficient time to complete the hibernation preparation task, effectively avoids the task execution risk caused by direct forced hibernation, improves the reliability and robustness of the vehicle hibernation process, and guarantees the integrity and safety of the vehicle function.

The invention relates to the field of mobile applications, and discloses an application restarting method and device based on double processes and a storage medium. The method comprises the steps that a restart task is received, and a first process ID of a first activity process corresponding to the restart task is read; in the first activity process, a second activity process is awakened, and the first process ID is used as a parameter to be transmitted to the second activity process; in the second activity process, the first activity process is closed according to the first process ID; in the second activity process, after it is confirmed that the first activity y process is closed, the first activity process is restarted; and in the first activity process, closing the second activity process. In the embodiment of the invention, the main process is used for updating the resources and the secondary process is used for maintaining the operation of the application, and the restarting of the main process replaces the restarting of the application, so that the redownloading of the updated resources caused by the data loss of the application is avoided, the operation experience of a user is improved, and the user does not need to manually restart the application.

The invention provides communication terminal equipment capable of intelligently controlling a circuit. The communication terminal equipment comprises an equipment shell; a circuit mainboard is arranged in the equipment shell, and a power supply battery is arranged on the circuit mainboard; a sound amplification hole is formed in the equipment shell, a humidity sensor is arranged at the position, corresponding to the sound amplification hole, of the circuit mainboard, and an automatic power-off assembly is arranged on the power supply battery; a temperature sensor is arranged at the periphery of the power supply battery in the equipment shell; a charging hole is formed in the equipment shell, and a high-temperature ejection assembly is arranged in the charging hole. According to the invention, protection of the communication terminal equipment in charging safety and waterproof aspects is enhanced, so that short circuit, data loss and equipment damage are prevented.

This invention belongs to the field of laser processing modification technology, and relates to a teaching-free laser shock strengthening method and system based on a 3D model and laser point cloud. The system includes a 3D modeling module, a point cloud acquisition module, a point cloud processing module, a path planning module, and a control module. It identifies the area to be strengthened using a 3D information model and plans the initial processing path. High-precision point clouds are acquired using a line laser sensor and monocular vision fusion method, and the deviation matrix of the workpiece to be processed is calculated through registration. Based on the deviation matrix, the initial processing path is transformed and corrected point by point, ultimately generating a robot execution program to control the laser processing device to complete the automated laser shock strengthening operation. This invention achieves fully automated operation from 3D information model to robot operation, effectively solving the problems of traditional methods such as reliance on manual teaching, low positioning accuracy, and difficulty in assessing accessibility.

A data storage method and apparatus, a computing device, a storage system, and a storage medium are disclosed. In the method, an order of writing chunks in a stripe to storage devices is improved. M+N chunks written in one batch to a same stripe are improved as N or fewer chunks written in one batch to a same stripe. For each stripe, because a quantity of chunks in the stripe that are simultaneously written to M+N storage devices is less than or equal to N, a quantity of chunks in the stripe that are simultaneously buffered to the M+N storage devices is less than or equal to N. Therefore, even if the M+N storage devices all have a power failure simultaneously and all data buffered in the M+N storage devices is lost because the storage devices have no backup power supply, a quantity of lost chunks in the stripe is less than or equal to N. Therefore, the one or more lost chunks in the stripe can be recovered by using a redundancy algorithm, thereby avoiding losing a stripe and ensuring reliability of data storage.

The present invention relates to the technical field of equipment control, in particular to an intelligent equipment control system, method and storage medium using an OPS computer. The equipment control method comprises the following steps: obtaining the task urgency of each device by comparing the resource demand of each device with the resource surplus in the OPS, and generating a preliminary resource allocation sequence set; predicting the remaining time for the OPS to receive the task next time; generating a real-time resource allocation sequence whenever an OPS receives a new resource demand signal; obtaining the remaining completion time and the abnormality of the device when the device is deprived of resources, and obtaining the probability of the device being abnormal; analyzing the distribution between the remaining completion time and the reference remaining completion time; obtaining the abnormal probability of the device being abnormal; calculating the risk value of each device, sorting the remaining devices according to the risk value, and generating a resource deprivation sequence.

The present application provides a data processing method, device and equipment, the method comprising: obtaining target decision information corresponding to a capacity physical hard disk; determining a target time corresponding to a garbage collection operation based on the target decision information; performing a garbage collection operation on duplicate data in the capacity physical hard disk at the target time. Through the technical solution of the present application, a garbage collection operation can be performed at an appropriate time to avoid the garbage collection operation occupying the bandwidth of a data reading operation, so that the capacity physical hard disk can meet the demand for fast reading and writing.

The utility model relates to the technical field of electronic connectors, and discloses an anti-drop electronic connector, the anti-drop electronic connector comprises a first pipeline, a second pipeline, a plugging mechanism and a buckling mechanism, the plugging mechanism comprises a first fastening ring, the upper end of the first pipeline is provided with the first fastening ring, and the second pipeline is provided with the second fastening ring. The first pipeline is mainly used for providing a main body structure of the connector and serves as a transmission channel of an electronic signal or a power supply, the plugging mechanism comprises several key parts, and the first fastening ring is used for enhancing the connection stability and providing enough tensile strength and support. According to the anti-falling electronic connector, through the embedded locking convex lug and the movable spring, it is ensured that the anti-falling electronic connector is not prone to falling off due to external factors such as vibration or pulling once connection is conducted, the physical safety of connection is remarkably improved through the mechanical locking mechanism, and the anti-falling electronic connector is particularly suitable for being applied to environments such as mobile equipment or automobile electronics; wherein the equipment is always in a dynamic state or the external condition is relatively bad.

The invention relates to a power failure protection method and system for storage server equipment and a computer device, and the method comprises the steps: monitoring an output signal of a power supply unit through a CPLD, and generating a non-shielding interruption signal when the output signal of the power supply unit is recognized to be abnormal; the power supply switching control unit controls a power supply mode to be switched from the power supply unit to the battery backup unit, controls related necessary hardware to enter a core closing mode through the ACPI and hardware cooperation module, and interrupts power supply to unnecessary hardware; controlling a dirty data identification unit to read a dirty data bitmap marked by the storage server equipment, and positioning dirty data to be protected in a memory of the storage server equipment; the dirty data transferred and stored in the preset storage unit are verified through the cyclic redundancy check unit, when the dirty data passes verification, the storage server device is controlled to execute the shutdown process, and when the power-on signal is received again, the dirty data are read from the preset storage unit and recovered to the memory cache.

The application provides a channel quality sensing-based adaptive modulation method and system for satellite-ground communication, and relates to the technical field of satellite-ground broadband communication.The method comprises the following steps: acquiring a set of link state parameters of a satellite-ground communication link in real time and performing normalization processing to generate a channel state feature vector; performing fusion evaluation on the channel state feature vector through a channel quality evaluation model to output a channel quality evaluation index; inputting the channel quality evaluation index into an adaptive modulation reconstruction model and judging a corresponding quality grade interval, and determining a modulation mode according to the quality grade interval; indexing modulation order parameters and channel coding rate parameters corresponding to the modulation mode in a modulation parameter configuration table, and generating a corresponding modulation switching instruction; and based on the modulation switching instruction, performing interleaving slice processing on to-be-downloaded remote sensing data to generate independent slice data and evenly distribute the independent slice data to baseband processing threads for parallel modulation and transmission, so that a dynamic balance among spectral efficiency, transmission rate and stability is achieved.

This application discloses a multi-vehicle positioning device for intelligent driving testing, relating to the technical field of intelligent driving testing. The device includes a fixed base station installed at the test site, and master vehicle positioning components and slave vehicle positioning components installed on master and slave test vehicles. The fixed base station receives satellite signals and provides position references for the test vehicles. The slave vehicle positioning components feed back slave vehicle position information to the master vehicle positioning components, and the master vehicle positioning components feed back the master and slave vehicle position information to a host computer. Both master and slave vehicle positioning components are equipped with an automatic power switching module, which connects to a main power supply and a backup power supply. This module automatically switches to the backup power supply when the main power supply fails, ensuring stable power supply. The technical solution in this application can automatically switch power during testing, avoiding data transmission interruptions caused by power outages, reducing testing risks and uncertainties, and meeting the requirement for continuous positioning during intelligent driving testing.

The invention relates to the field of boiler systems, and discloses a temperature adjusting system for a last-stage reheater of a boiler, which is used for improving the operation safety and reliability of the last-stage reheater of the boiler. Comprising the steps of collecting real-time temperature data of key parts of a boiler by connecting a power plant SIS or DCS system, and additionally installing a thermocouple enhancement data set to generate a temperature data set containing spatial position information. And calculating to obtain the three-dimensional temperature field distribution of the pipeline by using a model considering the dynamic change of the oxide skin. And based on the distribution, monitoring overtemperature points in real time, and generating temperature state evaluation and overtemperature early warning information. According to the invention, an equipment life prediction model is established, the damage accumulation degree of the pipeline material is evaluated, the residual life is predicted, a preventive maintenance strategy is made, and a maintenance plan suggestion is generated and integrated to a power plant maintenance plan system to guide equipment maintenance management.

The present invention provides a method, device, equipment and readable medium for selecting members of a distributed file system PG, the method comprising: in response to a member failure in an OSD, calculating new members of the PG in the OSD where the failure occurs by using a crush algorithm and an upmap correction table; in response to information synchronization of the PG, judging whether the new members of the PG in the OSD where the failure occurs conform to the failure domain; in response to the new members of the PG in the OSD where the failure occurs not conforming to the failure domain, deleting the new members of the PG in the OSD, making the OSD where the failure occurs in a waiting state and sending a message to a monitor; in response to the monitor receiving the message, clearing the information in the upmap correction table and sending a new osdmap table to the OSD where the failure occurs; the OSD where the failure occurs selects members in the new osdmap table as members of the PG. By using the scheme of the present invention, it is possible to ensure that the selected members conform to the failure domain, and avoid the problems of front-end service jamming and data loss caused by failures.

The utility model relates to the field of power electronics, especially low voltage crossing device, it includes voltage monitoring unit, compensation voltage generating system and overhauling isolation device. In the utility model, the device is in series between power supply and protected load, carries out real -time power grid voltage monitoring through bridge circuit, and carries out difference calculation, and the required compensation voltage is accurately generated on this basis, once finds that power supply voltage deviates from rated voltage level, generates a suitable compensation voltage injection system through energy storage device and IGBT inverter system, and the purpose of this compensation voltage is to offset the drop of power grid voltage, thereby realizes the effective management of voltage sag, guarantees load side voltage stability, ensures that sensitive load still can be unaffectedly operated when power grid voltage is abnormal.

The application discloses a kind of unmanned plane nest integrated charging and communication switching control method and device, comprising: when being in charging state and detecting data to be transmitted, initiate data exchange request with unmanned plane, and carry out the data exchange request check, obtain check detection result;According to check result, control duplex communication module to enter invalid level, and maintain predetermined time;After maintaining invalid level in predetermined time, the duplex communication module is switched to low level state, and after the confirmation signal of the unmanned plane is sent, it is switched to data transmission state, and data transmission is started;Wherein, the synchronization message is used to align state with unmanned plane after mode switching.The application compared with prior art, significantly improve the switching reliability of unmanned plane nest charging and communication mode and data transmission efficiency, overcome the poor technical defects of traditional scheme cooperation.

According to the aerial surveying and mapping system based on the unmanned aerial vehicle, in the aerial flight surveying and mapping process of the unmanned aerial vehicle, a battery module or a standby battery can supply power to the unmanned aerial vehicle and a processor. According to the system, the abnormity detection unit is adopted to detect signal abnormity and hardware faults in real time, when the signal abnormity and the hardware faults are detected, abnormal electric signals are sent to the abnormity receiving unit, and the abnormity receiving unit carries out correction processing according to the abnormal signal conditions sent by the abnormity detection unit; a correction completion signal is sent to the standby processing unit, then the standby processing unit is started, the standby processing unit corrects the completion signal and starts standby equipment, the standby equipment completes repairing of the abnormity of the unmanned aerial vehicle, finally the function transmitting unit is started, the signal is transmitted back to the receiving main station again, and the self-inspection repairing function of the unmanned aerial vehicle is completed. The safety and the repairability of the unmanned aerial vehicle are further improved, and out-of-control crash or data loss caused by sudden abnormity in re-control of the unmanned aerial vehicle is avoided.

A method for fault cross-system propagation analysis based on performance model, the first step: multi-domain system performance model construction; based on Modelica, the construction, integration and verification of each domain system model are completed; the second step: fault mode and influence analysis; the typical fault mode of components in each domain system and the fault influence relationship between components are identified, and the fault propagation path is determined; the third step: fault propagation analysis based on directed graph; the edge betweenness of each directed edge is calculated and taken as the fault propagation characteristic parameter on the structure level; the fourth step: fault cross-system propagation analysis based on performance model; based on the function failure logic table, the performance influence simulation between multi-domain components is carried out, the performance influence degree of the fault source component on the affected component is analyzed, and the performance characteristic parameter describing the components between each domain is obtained; the fifth step: fault cross-system propagation strength evaluation; the fault propagation structure characteristic parameter and the performance characteristic parameter are normalized and fused, a fault cross-system propagation strength model is constructed, and the key propagation path is identified.

The present disclosure provides an audio data processing method, system, electronic device and program product. The audio data processing method of the present disclosure is applied to a second device, comprising: establishing a first connection with a first device; receiving audio data sent by the first device according to the first connection, the audio data being collected by the first device for environmental sound or conversation sound; storing the audio data to a local storage space; and sending the stored audio data to a network side for storage.

The utility model relates to the technical field of power supplies, and discloses a self-locking power supply control circuit based on a self-resetting switch, which is connected with an equipment master controller and is used for controlling the on-off between a power supply input end and a power supply output end, and the equipment master controller is connected with the power supply output end and is used for accessing an input signal and generating an output signal. The self-locking power supply control circuit comprises a first MOS switch which is connected between a power supply input end and a power supply output end and is used for outputting an input signal, an NPN switch which is connected with the first MOS switch, the power supply input end, the power supply output end and an equipment master controller so as to access an output signal, and a self-resetting switch which is connected with the power supply output end, the equipment master controller and the first MOS switch. The second MOS switch and the first MOS switch are connected in parallel between the power supply input end and the power supply output end and are connected with the NPN switch; and the third MOS switch is connected with the power supply input end and the NPN switch.

The utility model provides a kind of winding mechanism and label printer of printable label, belong to label production technical field.It solves the problem that printable label cannot effectively separate from spool when the existing winding mechanism of printable label unwinds.The winding mechanism of the present application, including spool, the compacting structure for compacting the tail end of printable label is arranged on spool, the tail end of printable label enters the gap between compacting structure and spool in initial state, the tail end of printable label is compacted by compacting structure actively or under the action of printable label covered on compacting structure during winding, printable label drags spool to rotate reversely during unwinding, so that printable label is gradually released, and compacting structure can completely release the tail end of printable label when it is released to the tail end of printable label.By mechanical compacting, the risk of abnormal bonding caused by environmental factors is eliminated, and the tail end of label can be reliably separated during unwinding;Reduce equipment maintenance cost and consumable loss, improve printing efficiency.

The invention discloses a network data prediction analysis method and system, and belongs to the technical field of network data analysis processing. Comprising the following steps: acquiring preprocessed network data; based on the preprocessed network data, extracting an instantaneous flow rate value, a flow rate difference value and a transmission data flow total value of the network data transmission node in the supervision time period, and obtaining a transmission flow evaluation coefficient of the network data transmission node in the supervision time period according to the instantaneous flow rate value, the flow rate difference value and the transmission data flow total value; and acquiring transmission data volumes during uninterrupted transmission and interrupted transmission in the network data transmission process, and performing optimization early warning on the network data transmission nodes based on the transmission flow evaluation coefficient and the transmission data volumes. Transmission supervision evaluation analysis can be carried out on the network data, early warning optimization can be carried out in time according to the analysis result, and the problem that the transmission safety performance and the transmission efficiency of the network data cannot be improved through existing transmission condition analysis is solved.

The invention provides a file merging method and device, equipment, a storage medium and a program product, and particularly relates to the technical field of data processing. The method comprises the steps that small files, stored in a distributed storage system, of a target data table are recognized, and format information of all the small files is recorded; according to the recorded format information, combining the small files through a distributed computing framework to generate a plurality of aggregation files; and writing the aggregation file into the temporary storage directory, and migrating the aggregation file to a formal storage directory of the target data table after the aggregation file passes the integrity verification. The method is used for achieving the effects that efficient small file merging is achieved, and meanwhile continuous access of streaming data is supported.

This invention relates to the field of electricity meter fault identification, specifically a method and system for electricity meter fault identification. The electricity meter data acquisition module comprehensively collects the meter's display status, communication signal strength, current parameters, and voltage parameters. The electricity meter data analysis module analyzes these parameters and sends the analyzed signals to a fault identification and repair module. The fault identification and repair module accurately determines the fault type of the electricity meter and performs repairs. This invention improves the accuracy of electricity meter monitoring; comprehensive parameter acquisition combined with accurate fault type identification allows for timely detection of potential problems and rapid location and repair. This invention aims to improve the accuracy of electricity meter monitoring, the reliability of communication, and the efficiency of management through the acquisition, analysis, and processing of multiple electricity meter parameters, providing strong support for the stable operation and intelligent management of power systems.