Huawei Technologies Co., Limited

Envision Digital International Pte. Ltd.

Shanghai Envision Digital Co., Ltd.

Jing Chang

Yang Liu

Jie Sun

Shizhe Li

Kang Jian

Jinlin Yang

Zhousheng Li

Huirong Jiang

Xiaoxiao Chen

Jie Su

Shuai Li

Ligang Yu

Lu Feng

Binke Yu

Yunhai Li

Junqing Luo

Tienan Zhang

Yulong Xue

Fanfan Liu

Senjun Chen

A terminal protective case and an audio playback system, the case including a housing, a diaphragm, a piezoelectric sheet, and a drive circuit. The housing has a main body part and a fastening frame part, a side of the fastening frame part is fastened to a periphery of the main body part, the fastening frame part and the main body part jointly enclose an accommodating groove configured to accommodate a terminal. The diaphragm is within the main body part, the piezoelectric sheet is fastened to the diaphragm, a front cavity is on a side of the diaphragm, a sound outlet hole is disposed on the main body part, and the sound outlet hole connects the front cavity to the outside of the main body part. The drive circuit is within the main body part and connected to the piezoelectric sheet, and is configured to drive the piezoelectric sheet.

Terminal protective case and audio playback system

A mobile terminal includes a housing and a speaker component including a speaker unit that divides a cavity of the speaker component into a front speaker box and a rear speaker box, an air vent coupled to an inner cavity of the housing is disposed on a wall of the rear speaker box, and a flexible sound absorbing member that can absorb a sound and damp vibration is disposed on a wall of the inner cavity of the housing.

Mobile terminal

Example interface information presenting methods, electronic devices and computer-readable storage media are provided. An example method includes: obtaining a target interface; in response to a first operation of a user, entering a screen-locked state, and obtaining a first picture displayed in the screen-locked state; processing the target interface to obtain a target picture; and displaying the target picture in the screen-locked state, to cover the first picture.

Interface information presenting method and electronic device

A method including: acquiring present output current values of photovoltaic strings included in a photovoltaic array that, wherein includes at least two photovoltaic strings in parallel; determining a target abnormality score predicting model based on the present output current values. Determining a present abnormality score corresponding to the photovoltaic array by inputting the present output current values into the target abnormality score predicting model; and determining the operating state of the photovoltaic array by comparing the present abnormality score with a target abnormality score. The present abnormality score is output by inputting the present output current values acquired in real-time into the abnormality score predicting model, so as to determine the operating state of the photovoltaic array.

Method and apparatus for determining operating state of photovoltaic array, device and storage medium

A method including: acquiring present operating state data of a photovoltaic array, wherein the photovoltaic array includes at least two photovoltaic strings in parallel, and the present operating state data includes present output current values of the photovoltaic strings and present irradiances corresponding to the photovoltaic strings. Determining present characteristic parameters of the photovoltaic array based on the present operating state data, wherein the present characteristic parameters include a present characteristic current value, a present current discrete rate and the present irradiances; and determining an operating state of the photovoltaic array by comparing the present characteristic parameters with standard characteristic parameters of the photovoltaic array. Determining a present operating state of a photovoltaic array by comparing present characteristic parameters determined based on real-time operating state data with standard characteristic parameters may improve the accuracy of determining the operating state of the photovoltaic array.

Growing community of inventors

Shanghai, China

Jing Chang