11results about How to "Prevent downgrade" patented technology

The invention relates to the technical field of PCIe (Peripheral Component Interconnect Express), in particular to a PCIe dynamic degradation type link resetting method and system. Comprising the following steps: S1, continuously reading the LTSSM state of a PCIe link, recording the duration of an abnormal state, and when the duration exceeds a preset threshold value, judging that timeout abnormity exists; s2, after the abnormal early warning is received, a dynamic degradation reset instruction for the NVMe controller is initiated; s3, the state machine control unit takes over the reset link initialization process and follows the physical layer priority gt; the link layer is preferentially gt; a priority strategy is simplified by a transaction layer, and a centralized resource guide link rapidly completes training and enters an L0 state. Compared with the prior art, the method has strict protocol compliance, the reset efficiency is improved, and the overall stability and performance of the system are optimized.

The present invention discloses a coiling tension optimization method and system for controlling strip bulge. The method obtains the maximum allowable coiling tension of strips of various steel grades and specifications by analyzing the historical production parameters of strips that are prone to bulge defects, and uses the historical production parameters and the maximum allowable coiling tension to establish a model for calculating the critical coiling tension of the strip to be coiled, which is equivalent to obtaining a model for predicting future production data by learning and analyzing historical data. The critical coiling tension for avoiding bulge defects in the subsequent strip coiling process can be obtained, and then the actual coiling tension is optimized according to the predicted critical coiling tension, so as to avoid bulge defects in the subsequent strip coiling process and avoid product degradation.

This invention discloses a method for cleaning the edge baffle of a continuous hot-dip galvanizing visible air knife, characterized by the following steps: S1, offline mode: during production preparation, after the air knife is connected to the gas pipeline and electrical connector, the edge baffle of the air knife is in an offline position for action testing; S2, online mode: after the production line starts and the strip steel runs, once the air knife is in normal operation, the edge baffle of the air knife begins to move from the offline position to the online position; S3, edge baffle cleaning mode; S4, air knife lip cleaning mode. This invention also discloses a device for cleaning the edge baffle of a continuous hot-dip galvanizing visible air knife, comprising: an edge baffle bracket, installed on the top of the edge baffle of the air knife; two sets of camera monitoring components, respectively installed on both sides of the front end of the edge baffle bracket, for monitoring the two sides of the edge baffle of the air knife; and two sets of scraper drive components, respectively installed on both sides of the rear end of the edge baffle bracket.

The invention relates to the technical field of battery sealing nail welding, and provides a battery sealing nail welding defect repairing method. The repairing method comprises the following steps: acquiring an aluminum wafer of which the diameter is greater than that of a liquid injection hole of the battery top cover; removing the sealing nail at the liquid injection hole of the top cover of the battery; cleaning a liquid injection hole area; carrying out penetration type stitch welding by taking the wafer as an upper layer and the battery top cover as a lower layer to form a welding seam for melting the wafer and the battery top cover into a whole; and treating the welding seam and the wafer, enabling the outer surface of the wafer to be flush with the outer surface of the battery top cover, and enabling the liquid injection hole area not to be visually recognized. According to the repairing method, the aluminum wafer and the battery top cover are subjected to penetration stitch welding, and the welding seam and the surface of the wafer are treated, so that the welding defect of the sealing nail is repaired, the situation that the battery is degraded and scrapped due to poor welding or appearance defect of the sealing nail is avoided, and the quality requirement of the battery is met.

A domain control communication redundancy implementation method, device and equipment and a readable storage medium relate to the technical field of vehicle communication, and comprise the following steps: controlling a first electronic control unit and a second electronic control unit in an electronic mechanical braking system to be respectively hooked to a first domain controller and a second domain controller; when the first electronic control unit detects that the first domain controller is in a failure state, target failure information corresponding to the first domain controller is transmitted to the second electronic control unit through the first electronic control unit; and the target failure information is transmitted to the second domain controller through the second electronic control unit, so that the second domain controller takes over the target electronic control unit under the first domain controller based on the target failure information, and communication between the target electronic control unit and the central controller is realized. According to the invention, redundant communication between the electronic control unit and the central controller under the failure of the domain controller is realized by using the double-control redundancy characteristic of the EMB, so that the function degradation or failure of the whole vehicle is avoided.

This invention discloses an identity authentication method integrating quantum-resistant signatures and the X.509 format, relating to the field of data security technology. The method includes: S1, CA generates and publishes globally public parameters; S2, EE1 and EE2 obtain Cert1 and Cert2; S3, EE1 and EE2 perform bidirectional authentication and session key negotiation, and communicate using the session key; constructing a quantum-resistant digital identity certificate to ensure the long-term security and traceability of registration information; during the registration phase, the SLH-DSA algorithm is used to sign the user-submitted registration information to ensure the long-term validity and strong anchoring of the identity certificate, while the ML-DSA algorithm is reused to sign the registration information for rapid verification scenarios; during the authentication interaction phase, the ML-KEM quantum-resistant algorithm is used to implement a dual-path quantum-resistant DKE key exchange protocol to generate a session key, and the ML-DSA algorithm, with higher signature and verification performance, is used to digitally sign and verify the authentication message, achieving identity confirmation and communication integrity protection for both parties, and improving the performance of establishing a secure session link.

The present invention discloses a redundancy and switching system and method for head and tail positioning equipment of a rail train, comprising a positioning module and an onboard controller arranged at both ends of the train, wherein the onboard controller is provided with ATP and ATO, and the onboard controllers at both ends of the train realize information exchange through an in-vehicle communication network, and the positioning module is provided with a BTM positioning device and a speed measuring device, and the BTM positioning device collects the positioning beacon information beside the track; ATP and ATO complete the train positioning and periodic position update according to the BTM positioning device and the speed measuring device at the local end respectively, and ATP continuously monitors the positioning failure, and when the head end ATP judges that the local end positioning device fails, if it is judged that the tail end positioning device is not failed at this time, the tail end positioning information is switched to update the local end position information. The present invention can avoid the train degradation and emergency braking caused by the loss of positioning, and ensure the operation efficiency.

This invention discloses a continuous hot-dip galvanizing visual air knife edge baffle cleaning device. The device includes: an edge baffle support, disposed on the top of the air knife edge baffle; two sets of camera monitoring components, respectively disposed on both sides of the front end of the edge baffle support, for monitoring the side surfaces of the air knife edge baffle; two sets of scraper drive components, respectively disposed on both sides of the rear end of the edge baffle support; a rear scraper and a front scraper, respectively closely attached to the side surfaces of the air knife edge baffle, and the tops of the rear scraper and the front scraper are respectively connected to the two sets of scraper drive components, so that the rear scraper and the front scraper can rotate on the side surfaces of the air knife edge baffle; wherein, the two sets of camera monitoring components and the two sets of scraper drive components are all connected to the background operating system signal.

The invention relates to a crystal pulling crystal bar diameter measurement method and a measurement device using the same, and solves the problems of low measurement precision, complex operation, easy influence by human factors and the like caused by manual observation or simple mechanical measurement in the prior art. Processing the target image to generate a target image grey-scale map; analyzing the grey-scale map of the target image, and finding out the contour edge of the target image; generating a contour point set of the target image from the contour edge; fitting a target circle based on the contour point set; and obtaining the seeding diameter according to the target circle. The method has the advantages that the camera arranged in the crystal pulling furnace captures a real-time image in the seeding process, the contour line of the seeding interface is extracted through the image processing technology, and accurate measurement of the seeding diameter is achieved; automatic measurement is realized, the degree of dependence on operators is reduced, the generation efficiency is improved, direct contact between the operators and dangerous environments such as high temperature and high pressure is reduced, and the safety risk is reduced.

The utility model relates to a doffing waste silk collecting device which comprises a silk suction pipe, a fan, a filter and a lifting mechanism, the silk suction pipe, the filter and the fan are sequentially connected, the silk suction pipe is located below a spinning cake, a waste silk suction inlet allowing waste silk to enter is formed in the silk suction pipe, the waste silk suction inlet faces the spinning cake, and the fan is used for providing suction force. The filter is used for receiving waste silk entering the filter through the silk suction pipe, and a filter screen is arranged in the filter; the lifting mechanism is connected with the yarn suction pipe and used for driving the yarn suction pipe to move in the vertical direction. According to the doffing waste silk collecting device, negative pressure is generated through suction of the machine, when automatic doffing equipment performs doffing, waste silk is sucked into the silk suction pipe and then sucked into the filter through the negative pressure, silk heads are prevented from flying into a winding machine, product degradation caused by silk clamping of the bottom layer of a spinning cake is avoided, and the production efficiency is improved. The product production stability and the product quality are improved; the device is simple in structure and high in reliability; installation is convenient and simple.