Abstract: Provided is a rolling bearing fault diagnosis method based on FFT coding and L-CNN, including: obtaining original bearing fault vibration data, extracting intrinsic mode components of different frequency bands in the original bearing fault vibration data, calculating a permutation entropy value corresponding to each of the intrinsic mode components, and performing wavelet threshold denoising according to the permutation entropy value to obtain a denoised reconstructed time domain signal; performing fast Fourier transform to the denoised reconstructed time domain signal to obtain a frequency domain signal and a phase angle corresponding to the time domain signal, reconstructing the frequency domain signal according to a preset rule, retaining frequency domain data of features of the phase angle, and drawing FFT-x heat maps of different fault type data according to an amplitude range; and constructing an model L-CNN, and inputting coded data into the L-CNN model, and obtaining fault diagnosis results.

Abstract: Embodiments of this application provide an animation effect display method and an electronic device, and relate to the field of electronic technologies. According to the animation effect display method provided in an embodiment of this application, before an animation effect is displayed, a UI thread of an application, or a rendering thread of the application, or a rendering process determines controls whose properties change in duration of the animation effect, and determines properties of controls on an interface of each frame, and then the rendering thread of the application or the rendering process generates, based on the properties of the controls on the interface of each frame, a bitmap corresponding to the interface of the frame.

Abstract: A control blurring method and apparatus, a terminal device, and a readable storage medium are provided, which are applicable to the terminal field. The method includes: obtaining a dynamic parameter of a first control in a first frame image during drawing of the first frame image; encapsulating a drawing result of the first frame image and a dynamic parameter, to obtain a result of the encapsulation; performing composition on the drawing result of the first frame image based on the dynamic parameter, to obtain a composition result having a blur effect of the first frame image; and performing display based on the composition result of the first frame image.

Abstract: A login method and a login apparatus are provided. A third party server receives a login request of a first client and returns an identification code, the first client displays the identification code, and the third party server receives an authentication request of a second client to obtain a user unique identifier of the second client, wherein, the authentication request is sent by the second client according to an address of the third party server contained in the identification code after performing image acquisition to the identification code, and the third party server performs login authentication to corresponding third party account information bound to the user unique identifier and returns a login authentication result. The third party account information bound to the user unique identifier varies depending on the difference in the address information of the third party server contained in the identification code.

Abstract: A login method and a login apparatus are provided. A third party server receives a login request of a first client and returns an identification code, the first client displays the identification code, and the third party server receives an authentication request of a second client to obtain a user unique identifier of the second client, wherein, the authentication request is sent by the second client according to an address of the third party server contained in the identification code after performing image acquisition to the identification code, and the third party server performs login authentication to corresponding third party account information bound to the user unique identifier and returns a login authentication result. The third party account information bound to the user unique identifier varies depending on the difference in the address information of the third party server contained in the identification code.