4 results about "Low - observation" patented technology

The hardware Trojan detection method and system based on low activity and low observation node joint analysis belong to the technical field of integrated circuit security, and solve the problem of how to improve the accuracy of identifying high-concealment hardware Trojan; the gate-level netlist is abstracted into a signal propagation directed graph, the nodes in the low activity candidate trigger node set are taken as the starting nodes, the nodes in the low observation candidate load node set are taken as the target nodes, the effective signal propagation path from the starting node to the target node is searched in the directed graph, and if the effective signal propagation path exists, it is determined as a high-risk hardware Trojan potential link; the application proposes a method for identifying high-concealment hardware Trojan potential signal link based on gate-level netlist static analysis, which does not depend on the golden reference model, and does not need to know the Trojan feature library, and is especially suitable for third-party IP core access security detection, backdoor review and logic credibility verification scenes.

The utility model relates to the technical field of coating equipment, in particular to vacuum coating equipment for glass products, an observation part comprises an observation box, an observation window and a shielding group, the observation box is fixedly arranged on the side surface of the coating part, the observation window and the shielding group are both arranged in the observation box, and when the shielding group shields the observation window, the observation window is blocked by the shielding group. Atoms of the target material sprayed by the film coating part are prevented from being sprayed to the observation window, and when the shielding group leaves the observation window, the film coating condition of the glass product in the film coating part can be observed through the observation window; when the shielding group is static in front of the observation window, the glass product is put into the coating part for vacuum coating operation, atoms of a target material sprayed by the coating part are sprayed to the observation window and are intercepted by the shielding group, and the target material atoms are prevented from being sprayed to the mirror surface of the observation window, so that the visibility of the observation window is reduced, the observation effect is influenced, and the coating duration cannot be accurately controlled; and when the shielding group leaves the observation window, an operator can observe the coating condition of the glass product in the coating part through the observation window.

The utility model discloses a tempered glass stress spot detection lamp box, and belongs to the technical field of tempered glass detection. A tempered glass stress spot detection lamp box comprises a working box with a clamping assembly and further comprises a transparent plate fixedly connected to the working box, a supporting plate is fixedly connected to the working box, the supporting plate is perpendicular to the transparent plate, a diffusion filter plate is arranged on the transparent plate, and the bottom end of the diffusion filter plate is attached to the supporting plate; the transverse movable block is connected into the working box in a sliding mode, a longitudinal movable block is connected to the transverse movable block in a sliding mode, and a direct light is fixedly connected to the longitudinal movable block; according to the utility model, the direct illuminating lamp can move up and down and left and right in the working box to irradiate different positions of the toughened glass in a concentrated manner, so that when a worker wears a polariscope to observe, the worker can carefully observe the local positions of the toughened glass which may have fuzzy stress spots, and the operator can clearly see the stress spots; and the observation difficulty is reduced.

The present invention provides a method and device for determining the trajectory of a telescope switching an observation target, which relates to the field of astronomical observation technology and aims to solve the technical problems in the prior art of low accuracy of observation data due to the phenomenon of sudden stop and start of servo, and low observation efficiency due to the inability to accurately estimate the arrival time. The method comprises: determining the time, direction and speed corresponding to the last point of the current observation target arc as the starting point, and determining the time, direction and speed corresponding to the first point of the next observation target arc as the end point; inputting the starting point and the end point into an S-shaped curve model to determine the docking position and calculating the first motion trajectory from the docking position to the end point; calculating the second motion trajectory from the starting point to the docking position; determining the docking time based on the time required for the first motion trajectory and the second motion trajectory and the constraint time of the observation task; and determining the total motion trajectory of the telescope switching the observation target based on the first and second motion trajectories and the motion trajectory corresponding to the docking time.