5results about How to "Accurate and efficient judgment" patented technology

The invention relates to the technical field of ship devices, in particular to a comprehensive performance evaluation method for irregular anchor chain storage space design. According to the method, dynamics / kinematics mathematical and mechanical models of long-chain in-cabin motion are established, the models are embedded into a simulation software adams solver, and a digital twin model of the long-chain in-cabin motion is formed on the basis, so that a long-chain in-cabin stacking test result corresponding to an irregular storage chain space design scheme is generated; secondly, according to result sets of different schemes, through statistics and analysis of anchor chain accumulation forms under different anchor chain numbers, a quantitative regression mode is adopted to provide a relational expression between the number of anchor chains in the irregular chain storage space and relevant parameters of a chain locker, and the relational expression can serve as a judgment basis for evaluating whether the irregular chain storage space meets normal storage of the anchor chains or not; the effective cabin capacity of the irregular storage chain space can be accurately and efficiently evaluated, the initial design accuracy of the irregular storage chain space of the anchor system is improved, and a reference basis is provided for verifying the design of the irregular storage chain space.

The invention discloses a handwriting recognition and judgment method and system based on knowledge transfer learning, and relates to the field of handwriting recognition. Establishing a rectangular plane coordinate system, calculating a curvature and an average curvature, comparing the curvature and the average curvature with a preset threshold value, judging stroke types, and counting linear strokes and the total stroke number; calculating a vector included angle and an angle average value; the total handwriting length, the average acceleration and the handwriting generation rate are obtained in combination with real handwriting sample data, and then a comprehensive index is calculated; respectively calculating an average pressure value and a pressure variance, further calculating a comprehensive pressure index, and calculating a handwriting feature index and a writer identity authenticity score according to the comprehensive pressure index; calculating a score average value and a score standard deviation of the identity authenticity of the writer, and obtaining a handwriting authenticity index threshold value; calculating an identity authenticity score of the to-be-judged writer, and comparing the score with a handwriting authenticity index threshold to judge the authenticity of the handwriting; according to the method, handwriting recognition and authenticity judgment can be more accurately carried out.

The application discloses a door lock device, a washing machine and a control method, the door lock device comprising a lock hook mechanism, the lock hook mechanism comprising: a lock seat; a lock hook piece rotatably arranged in the lock seat to open or lock the door lock; and a position detection bracket, a middle part of the position detection bracket being rotatably arranged on the lock seat, one end of the position detection bracket being in position limiting cooperation with the lock hook piece, and the other end of the position detection bracket being provided with a detected terminal. The washing machine is provided with the door lock device between an inner drum and an inner drum door; whether the lock hook mechanism is locked in place is judged by detecting the position of the detected terminal by a position sensor. Under the action of the position detection bracket, the position of the lock hook piece changes slightly, the displacement of the end of the detected terminal is amplified by several times, the position sensor can more easily identify the position of the lock hook piece, and whether the door lock device is locked in place can be more accurately and efficiently judged, the detection accuracy is improved, and the safety of the washing machine operation is ensured.

The present application relates to the technical field of cold-rolling continuous production line maintenance, in particular to an intelligent switching type supporting roller maintenance system and method. The supporting roller maintenance system comprises a plurality of lifting type supporting rollers arranged side by side on the cold-rolling continuous production line, and a strip steel is arranged on the supporting roller. Each lifting type supporting roller is composed of a roller body, a supporting base, a support, a lifting adjusting mechanism, a fault detection device and an alarm device. The supporting roller maintenance method can improve the maintenance efficiency of the supporting roller of the cold-rolling continuous production line, and does not affect the production operation of the continuous production line.

The invention discloses an intelligent air conditioner adjusting method and device and electronic equipment and relates to the field of intelligent air conditioners. The method comprises the following steps: acquiring a plurality of indoor images; feature extraction is carried out on each indoor image, personnel activity states corresponding to each indoor image and time points corresponding to the personnel activity states are obtained, and the personnel activity states comprise an outgoing state, a sleep state, a sedentariness state and an activity state; inputting the personnel activity time sequence into a preset activity state prediction model to obtain a predicted activity state; according to a preset operation rule, air conditioner operation data corresponding to the predicted activity state is determined; acquiring outdoor environment parameters; according to the outdoor environment parameters, the air conditioner operation data are adjusted, and target air conditioner operation data are obtained; and determining to operate the air conditioner according to the target air conditioner operation data. According to the technical scheme, the air conditioner operation data are automatically adjusted according to the user activity state and the outdoor environment parameters, and energy waste is reduced.