6results about How to "High precision estimation" patented technology

This application provides an image processing method, apparatus, electronic device, and storage medium. Relating to the field of image processing, this application solves the problems of real-time performance and accuracy in pose estimation of target images. The specific solution involves: acquiring an RGB image and an infrared image including the target object; fusing the RGB image and the infrared image to obtain a fused image; segmenting the fused image to obtain the target object; and segmenting the target object to obtain a pose estimation result. The embodiments of this application are used for processing RGB images and infrared images including the target object.

A power storage device includes a secondary battery capable of charge and discharge, a control unit that controls charge and discharge of the secondary battery, a voltage detection unit that detects a voltage of the secondary battery, and a battery temperature detection unit that detects a temperature of the secondary battery. The control unit calculates a first self-discharge amount of the secondary battery based on an elapsed time from a charge stop time point of the secondary battery and the temperature detected by the battery temperature detection unit during charge stop of the secondary battery, calculates a second self-discharge amount of the secondary battery based on a variation amount of a detection value of the voltage detected by the voltage detection unit during the elapsed time, and estimates a degree of deterioration of the secondary battery based on the first self-discharge amount and the second self-discharge amount.

The invention relates to a module-cell multi-level cooperative control battery management system construction method, and belongs to the technical field of electric vehicle battery management, and the method comprises the following steps: S1, designing a variable topological structure of a series-parallel circuit in a battery module, the method specifically comprises the following steps: S2, designing a power electronic structure for hierarchical self-adaptive control of a single battery cell in a battery module; s3, based on the multi-level battery management system, establishing an online parameter identification method of a battery cell level, and meanwhile, realizing a dynamic equalization process of a module level under any environmental condition; and S4, constructing a multi-level battery management system module to obtain a complete module-cell multi-level cooperative control battery management system. According to the method, high-precision estimation of battery parameters and capacity equalization in the module can be realized in parallel, and the precision of the capacity equalization process can be improved by the accurate parameter estimation result while the parameter estimation result is optimized by designing a high-information-degree signal.

An electromechanical brake is disclosed, configured such that a piston pulls a brake pad toward a wheel disc via a drive motor. The electromechanical brake includes: a hysteresis data storage unit storing rising interval function data over a rising interval and falling interval function data over a falling interval, wherein the braking force increases as the piston moves toward the wheel disc and decreases as the piston moves away from the wheel disc; a position detection unit detecting the position of the piston; a calculation unit calculating the differential value of the detected piston position relative to time; a past state data storage unit storing data over a previous interval corresponding to the previous piston position; and a braking force calculation unit calculating the braking force based on the differential value of the piston position and the data over the previous interval.

The present disclosure provides a substrate processing apparatus and a film thickness estimation method capable of estimating a film thickness that varies constantly during an etching process with high precision even in an environment in which interference exists. The substrate processing apparatus includes a holding unit, a supply unit, a light sensor, and a control unit. The control unit is configured to execute: a first process of supplying an etching liquid to the surface of the substrate held by the holding unit; a second process of acquiring a change in the intensity of the reflected light received by the light sensor from the irradiation portion in a process of supplying the etching liquid to the surface of the substrate; a third process for removing, from intensity change data indicating a change in the intensity of the reflected light acquired in the second process, an interference component generated due to the influence of an interference inducer positioned above the substrate, and generating correction data; and a fourth process of estimating a film thickness of the film in the etching process based on the correction data.

The invention discloses a method for calculating the water entry slamming pressure of an open cavity in waves, relates to the technical field of ocean engineering, is used for predicting the water entry process of the open cavity, and comprises the steps of constructing a geometric model of the open cavity, constructing a wave field, and simulating the movement process of a target cavity entering the wave field and the movement process of the target cavity in the wave field. Constructing a time domain motion equation of the target cavity, solving the time domain motion equation of the target cavity by adopting a numerical integration method, and calculating a hydrostatic pressure component, an entry water impact dynamic pressure component, an in-cavity air fluctuation pressure component and a wave induction dynamic pressure component of the target cavity; and performing decoupling calculation on the water entry slamming pressure of the target cavity based on the four sub-components. According to the method, the coupling dynamic model of the wave field and the water entry process of the open cavity is established by combining a multi-phase coupling action mechanism, and the calculation precision of slamming pressure distribution and time history characteristics of the open cylindrical cavity at the water entry moment and in the subsequent process under the wave condition is improved.