6results about How to "Implement active detection" patented technology

This invention relates to an online monitoring method for brake block wear in a lithium battery-powered monorail. The monorail includes a travel drive unit, a brake, a brake block, and a speed detection unit. When a braking command is triggered, the method collects current or displacement signals from the braking actuator and travel speed or encoder pulse signals. Based on the current or displacement signals, it determines that the brake block and the braking friction pair have entered an effective clamping state. In the effective clamping state, the method controls the travel drive unit to apply a reverse trial torque constrained by a preset upper limit. During the application of torque, it judges whether the speed signal or encoder pulse signal exhibits a micro-slip exceeding a preset threshold. When micro-slip occurs, it determines that the brake block wear has resulted in insufficient braking friction margin and outputs a warning or interlocking control command. This invention can issue warnings or interlocking control commands at an early stage when brake block wear leads to a decrease in braking capacity, thereby effectively avoiding the risk of brake failure and improving the safety and reliability of monorail operation.

The application discloses an active intrusion prevention method, relates to the technical field of system network security, and aims to solve the problems of low detection precision and detection lag of existing network abnormal intrusion, and comprises the following steps: obtaining preprocessed network data; performing multi-dimensional traffic data analysis on the network data to obtain the network data labeled with network state credibility measurement results and various sub-dimension measurement labels; calculating the labeled network data through a machine learning classification algorithm to obtain characteristic behavior classification of the network data; and performing suspicious node detection through fine-grained real-time measurement according to the classification results and updating a security strategy. The application further discloses an active intrusion prevention device. The application can quickly analyze network intrusion through multi-dimensional analysis of network data and machine learning.

This utility model discloses a short-circuit detection circuit and a charging pile. The short-circuit detection circuit includes N optocoupler modules, each with an input side and an output side. The input side includes a first terminal and a second terminal, and the output side includes a third terminal. When N≥2, the first terminal of the Nth optocoupler module is connected to the second terminal of the (N-1)th optocoupler module. The first terminal of the first optocoupler module is used to connect to a first power supply, and the second terminal of the Nth optocoupler module is grounded. When N=1, the first terminal of the optocoupler module is connected to the first power supply, and the second terminal of the optocoupler module is grounded. A switching module is connected between the first terminal of the corresponding optocoupler module and the input terminal of the short-circuit detection circuit. An output isolation module is connected between the third terminal of the corresponding optocoupler module and the output terminal of the short-circuit detection module. The short-circuit detection circuit can perform short-circuit detection before the charging pile charges the load, improving charging safety.

This invention discloses an extra-large array-type flange processing equipment, relating to the field of flange processing equipment. It includes a milling machine base, a milling machine body movably mounted on the milling machine base, a mounting seat mounted on the milling machine body, and a milling cutter movably mounted on the mounting seat. It should be noted that, in this embodiment of the invention, when a problem occurs with the milling cutter, a start switch can be triggered, causing four avoidance cylinders to move the clamping plate downwards and disengage from the milling cutter via four lowering rods. This also causes the two shielding side boxes to merge and shield the flange material plate. Therefore, through rapid detection, risk avoidance, and physical shielding, the impact damage to the expensive flange material plate by the milling cutter is prevented to the greatest extent possible. Furthermore, avoiding collisions also protects the expensive milling cutter, reduces damage to key machine tool components such as the spindle and guide rails caused by severe impacts, extends equipment life, reduces maintenance costs, improves the safety of the entire processing process, and reduces the potential for safety accidents.

The invention discloses a scraper conveyor for a coal mine, and relates to the field of scraper conveyors, the scraper conveyor comprises a scraper conveyor body, a feeding box, a discharging port and a driving motor are mounted on the scraper conveyor body, a transmission shaft is mounted in the scraper conveyor body, and the driving motor is in transmission connection with the transmission shaft. A plurality of bottom plates are mounted on the bottom side of the scraper conveyor body in a sliding manner and are movably connected; the device further comprises a bottom plate flatness detection mechanism. It needs to be explained that when the scraper conveyor operates, the transverse sliding frame moves in a reciprocating mode to actively detect the bottom plates, if the deformation amplitude of the bottom sides of the bottom plates is too large, the switching spring pulls the switching support to move, then the multiple bottom plates are driven to move, one bottom plate is separated from a scraper conveyor body, and the bottom plates are separated from the scraper conveyor body. And the other bottom plate is moved to the bottom side of the scraper conveyer body, so that automatic switching of the bottom plates is realized, the scraper conveyer body can continuously operate, and the conveying efficiency is ensured.

This invention discloses a method, system, and medium for collecting precise user preference data, including: collecting multi-source behavioral data, standardizing the data, and generating a standardized behavioral event sequence; constructing a preference perturbation sequence, generating a pseudo-probe chain, and identifying preference gap dimensions; constructing a preference topology tensor, folding the tensor structure, and extracting probe candidate vectors; inputting the data into an InterFormer network, analyzing rating interaction features, and generating probe content vectors; displaying the probe content, collecting user behavior, recording context and displayed information; constructing a causal graph, generating a causal regeneration kernel, and outputting high-confidence preference samples. This invention achieves precise, reliable, and interpretable data collection of users' true preferences by using preference perturbation and uncertainty analysis, generating probe content through topology tensor folding, and combining causal regeneration to construct preference samples.