Zhejiang Uniview Technologies Co., Ltd.

Hangzhou Dianzi University

Qiang Ding

Shuang Liu

Zuohua Wu

Qixing Zeng

Chong Shi

Hao Cheng

Dechuan Chen

A fault detection method for refrigeration units based on an improved deep learning model is provided, including the following steps: S: obtaining operating parameters of a refrigeration unit in a normal operating state and in states with different fault types as data sets; S: detecting local outliers in the data set by using a local outlier factor algorithm and removing the local outliers, and then expanding the data set by using adaptive synthetic sampling; S: normalizing the data set; S: constructing a fault detection model; and S: inputting the parameters of the tested refrigeration unit into the fault detection model, and judging whether the tested refrigeration unit has a fault and the type of the fault.

Fault detection method for refrigeration units based on improved deep learning model

A method for storing video data includes, when receiving the I-frame data to be stored, detecting whether the written data exists in the video cache space; when detecting that the written data exists in the video cache space, reading a target writing position of the I-frame data to be stored and determining whether the target writing position is located within a position range corresponding to the written data in the first cache space; when determining the target writing position is located within the position range, writing, based on the target writing position, the I-frame data to be stored to the first cache space for caching and detecting whether the first cache space is full; and when detecting that the first cache space is full, writing all the video data in the video cache space to a memory space of the terminal device for storage and emptying the video cache space.

Video data storage method, apparatus, terminal device and storage medium

A method for auto recovery storage of JBOD array is disclosed. The method includes: determining whether a disk of the JBOD array is failed, deleting a storage resource according to a storage resource list for the failed disk is stored with an index area upon determining the failed disk, updating the index area corresponding to a recorded data area when the failed disk is stored with the storage resource of the recorded data area instead of the index area; transmitting control instructions indicative of adding a hot spare to the JBOD array to add the hot spare to the JBOD array, and adding the storage resource and activating the storage resource for the failed disk stored with the index area after the hot spare is added to the JBOD array.

Method and device for auto recovery storage of JBOD array

Growing community of inventors

Hangzhou, China

Qiang Ding