Abstract: A method for accurately positioning a navigation target point includes: selecting a navigation reference with a fixed position, acquiring positions of the navigation reference and the navigation target point in a navigation coordinate system respectively, and calculating a position of the navigation target point relative to the navigation reference, so as to further obtain a position of the navigation target point in a coordinate system of the navigation reference. As long as the navigation reference does not move, the coordinate system of the navigation reference will not change during the entire navigation process, and spatial position coordinates of the navigation target point in the coordinate system of the navigation reference will not be interfered by the navigation coordinate system.

Abstract: A winding device includes: a first unwinding equipment, a second unwinding equipment, a third unwinding equipment and a fourth unwinding equipment, respectively configured for outputting a first diaphragm, a cathode pole piece, a second diaphragm and an anode pole piece; a merging equipment, configured for merging passing material strip layers; a pole-piece-inserting equipment, configured for cutting off the passing cathode pole piece, and transporting a starting end of the cathode pole piece downstream; a winding equipment, including a turret and at least two winding needles, the turret is adapted to drive each of the winding needles to pass by a first station and a second station sequentially; and a guiding roller, the layers of material strip located between the first station and the second station winding through the guiding roller.

Abstract: A winding device including: a merging equipment, for merging a passing first diaphragm, a passing cathode pole piece, a passing second diaphragm and a passing anode pole piece to form a combined material strip; a first pole-piece-processing equipment, for cutting off the passing cathode pole piece, separating from each other a first upstream cut-off end and a first downstream cut-off end, and connecting them with a tape; a winding equipment, including a turret and at least two winding needles, the turret driving each of the winding needles to pass by a first station and a second station sequentially; and a guiding roller and a cutting-off equipment.

Abstract: A winding mandrel mechanism and a winding machine are provided. The winding mandrel mechanism includes a winding pin holder, two half winding pin assemblies, and a driving rod. Each half winding assembly includes an outer pin and an inner clip mounted to the winding pin holder and movable along a radial direction of the winding mandrel mechanism. The driving rod is advanced axially, and inner clips are driven by second cam structures to move radially until clamping material to be wound. The winding mandrel mechanism is rotated to wind the clamped material around outer periphery of the winding mandrel mechanism. To adjust a circumference of the winding mandrel mechanism, the driving rod is advanced continuously along the axial direction of the winding mandrel mechanism, and outer pins are driven to move radially away by first cam structures, thereby increasing the circumference of the outer pins.

Abstract: The present disclosure discloses a method, a system and a device for identifying crawler data. The method comprises: acquiring sitemap data of a target website and generating a vector graph of the sitemap data; acquiring session data of the target website, and mapping the session data into a subgraph in the vector graph based on requests contained in the session data; adding a session tag to the session data, where the session tag is configured to characterize whether the session data is crawler data; and training a preset classifier based on the session tag and the subgraph to obtain a trained classifier for distinguishing crawler data from non-crawler data.

Abstract: The present disclosure provides a method and a server for recognizing abnormal access behavior. The method includes: receiving an access request sent by a client terminal and generating a recognition identifier for the client terminal based on the access request; obtaining device fingerprint information of the client terminal and generating a unique identifier based on the recognition identifier and the device fingerprint information; and sending the unique identifier to the client terminal and recognizing whether an access behavior of the client terminal is abnormal. The technical solutions provided by the present application can improve recognition accuracy of the abnormal access behavior.

Abstract: The present disclosure discloses a method and an apparatus for detecting a hidden link in a website. The method includes: periodically obtaining, for each target URL of a target website, all URL association tags and all attribute content of the URL association tag from a response page of the target URL; detecting, for each of the URL association tags, whether a URL corresponding to attribute content of the URL association tag is in a preset security URL set; detecting, if the URL is not in the preset security URL set, whether the attribute content of the URL association tag includes a preset hidden link attribute feature; and determining, if the attribute content includes the preset hidden link attribute feature, that the URL corresponding to the attribute content of the URL association tag is a hidden link.