3results about How to "Unified structure" patented technology

The application provides a binding-free insulation wire fixing device, which comprises a ring-shaped mounting part, a wire pressing plate, a first groove, a through hole and a limiting groove, a pressing cap, a second groove, a connecting assembly for connecting the wire pressing plate and the pressing cap, and a threaded sleeve, a first stud and a second stud, and a nut. The wire pressing plate is arranged on the ring-shaped mounting part, the first groove of the wire pressing plate and the second groove of the pressing cap form a self-adaptive clamping structure, the threaded sleeve is embedded into the through hole of the wire pressing plate to provide stable support, the first stud is screwed into the threaded sleeve to adjust the height of one end of the pressing cap and adapt to different wire diameters, the second stud is welded on the pressing cap and clamped in the limiting groove, and the end nut forms mechanical locking, so that dynamic adjustment and rigid fixation are realized through cooperation of the three, and the problems of poor universality of a wire clamp, adjustment or replacement of the wire clamp to cope with different wire diameters, reduced operation and maintenance efficiency, increased cost and reduced reliability in the prior art are solved.

The present application belongs to the meteorological drought prediction technical field, aiming at the defects that single drought index is difficult to comprehensively depict different types of drought causes and the prediction lacks quantization and foresight in the prior drought prediction technology, a drought prediction method and system are proposed, by calculating the SPI and SPEI of the current month, according to the SPI / SPEI value, the drought grades of no drought, light drought, moderate drought, heavy drought and special drought are divided, based on the run theory, the drought duration and drought intensity and other characteristic variables are extracted from the long time sequence monthly SPI / SPEI data to construct the drought characteristic database, then combined with the current drought state, the statistical extrapolation method is used to analyze and quantize the future drought trend through the historical similar events, the accurate identification of meteorological drought and agricultural drought is realized, and the quantitative prediction of the drought duration probability, intensity evolution range of the future 1-3 months is realized, which provides a scientific and reliable foresight basis for disaster prevention and mitigation decision.

The application discloses a laser coarse-precision integrated tracking control method and system, and belongs to the technical field of laser communication control and adjustment. A light beam direction vector is constructed in a three-dimensional space, and inverse rotation operation is carried out in combination with a current turntable attitude, so that camera errors can be uniformly returned to an initial base coordinate system in any attitude, thereby realizing geometric consistency calculation and dynamic decoupling control of coarse tracking and precision tracking. The coarse tracking and the precision tracking adopt the same line-of-sight vector modeling method, the algorithm structure is unified, through the inverse rotation operation, the errors are always returned to the initial base coordinate system, the coupling influence caused by the change of the turntable attitude is eliminated, the mirror compensation angle is directly deducted on the line-of-sight angle level, the control superposition conflict in the traditional double-loop structure is avoided, under the small-angle approximation, only matrix multiplication and arctangent operation are needed, and the application is suitable for embedded high-speed control systems, and the turntable only tracks low-frequency residual errors, and high-frequency jitter of the mirror is avoided from being transmitted to the mechanical structure.