6results about How to "Improve attendance" patented technology

The present application relates to a kind of laser radar and camera online self-calibration method and system without induction, the method includes: S1.in the process of vehicle driving, through multi-source trigger mechanism acquisition laser radar point cloud data and camera image data, simultaneously obtain vehicle motion state information and automatic driving perception system output result, the multi-source trigger mechanism includes time trigger, event trigger and cloud data mining trigger parameter degradation model;S2.the pre-processing and feature extraction of the multi-source data collected, obtain laser radar point cloud feature and camera image feature;S3.based on geometric constraint, motion consistency and perception result fusion, constructs multi-modal verification model, and carries out multi-dimensional verification to calibration parameter.The present application not only reduces the artificial maintenance cost, through automatic means maintenance vehicle state to achieve sensor calibration parameter degradation self-detection and self-calibration without induction, and improves the reliability and attendance rate of automatic driving vehicle.

The application discloses an aero-engine hot-end component full-life-cycle management method and system, and belongs to the technical field of aero-engines.The system constructs a full-life-cycle closed loop system of material gene optimization-precision forming process-service health monitoring-life prediction and active repair, can realize service life improvement of more than 200% of the aero-engine hot-end component, and improves the production yield rate from the conventional 60% in the industry to more than 90%.The application fills the core short board of short life, poor reliability and low yield rate of the aero-engine hot-end component in China, breaks through the core technical bottleneck of the "industrial crown pearl" of the aero-engine, and is 100% domestically produced and controllable in material and process, and can be widely applied to scenes such as army armed helicopter turboshaft engines, military unmanned aircraft turbojet / turbofan engines and the like.

This invention provides a threaded connection circumferential positioning structure and assembly method, as well as a rotating mechanical component. The structure includes a first housing, a second housing, a positioning key, a locking sleeve, and a looper. The first housing has a shaft section with external threads and a circumferential positioning groove. The second housing is fitted onto the first housing, and its inner wall has multiple circumferentially distributed positioning keyways. By inserting the positioning key, the relative circumferential phase of the two can be selectively fixed. The locking sleeve, as an axial clamping element, is placed in the space enclosed by the stepped surface of the housing, the positioning key, and the end face of the second housing. The looper is fitted over the locking sleeve, and its inner wall has a receiving structure to constrain the locking sleeve. One end of the looper forms an axially limited and circumferentially free floating connection with the second housing, and the other end is threadedly connected to the first housing to fasten the whole. The design transmits the working torque through the key, so that the threaded pair only bears the axial force, preventing vibration and loosening. It achieves accurate, reliable, and adjustable fixing of the circumferential phase, combining low cost and high reliability.

The invention discloses a dumper power assembly redundant suspension protection device, a monitoring system and a graded early warning control method.The dumper power assembly redundant suspension protection device comprises at least one redundant suspension assembly, and the redundant suspension assemblies are correspondingly installed on an engine and / or a gearbox and are arranged close to an engine suspension and / or a gearbox suspension; an original suspension fixing hole position of an engine or a gearbox is not shared, and the protection device is used for providing protection when engine suspension and / or gearbox suspension are / is overloaded or failed; the redundant suspension assembly comprises a redundant supporting leg, a redundant shock absorber, an adjusting gasket and an adjusting washer. The redundant suspension assembly does not intervene in work when the vehicle runs normally, interference to original adjustment parameters of the power assembly suspension is avoided fundamentally, it is ensured that the NVH performance of the vehicle is kept at the original level, and both upgrading practicability and driving and riding comfort are considered.

This application discloses an engine starting control method, apparatus, equipment, and medium with thermal bending correction. The method includes the steps of: using an atmospheric pressure correction coefficient, an atmospheric temperature correction coefficient, and different maximum thermal starting... Tt 45°C residual temperature Tt A residual temperature correction coefficient of 45 is used to jointly correct the gas generator rotor acceleration during the third stage of the turboshaft engine's start-up. During this stage, given the corrected gas generator rotor acceleration, the engine is driven solely by the turbine, operating at the corrected rotor acceleration. Fuel is supplied in a closed-loop manner according to this corrected rotor acceleration, causing the gas generator speed to increase accordingly. This application is approved. Tt 45 residual heat corrects the acceleration of the turboshaft engine in the third stage of start-up, adaptively extends the hot start-up time, reduces the probability of surge and scraping caused by thermal bending, and improves uptime.

This invention relates to the field of solar panel mounting technology, and more particularly to a repeatable and rapidly deployable scissor-braced solar panel mounting system. A lower longitudinal beam is mounted on the ground and has a first threaded hole for connecting to a lower crossbeam. A lower crossbeam is connected above the lower longitudinal beam and has a second threaded hole for connecting to the lower longitudinal beam. Both ends of the upper surface of the lower crossbeam have grooves extending along its length, used for connecting and sliding the support components. A connecting beam has a first connecting groove and a second connecting groove. The first connecting groove connects to a first slider, and the second connecting groove connects to the support components. The support components are scissor-braced structures, with both ends connecting to the second connecting groove and the groove, respectively. This invention offers advantages such as high reusability, rapid deployment and dismantling, excellent site adaptability, superior durability, low maintenance, and high transportation and storage efficiency.