Abstract: A method and an apparatus for monitoring a Battery Backup Unit (BBU) (312), a server (301), and a readable storage medium (330) are provided. The method includes following steps: monitoring a voltage and a ampere-hour of the BBU (312) (S101); when the voltage is static and the variation of the ampere-hour is greater than a variation threshold value, determining a current moving window point by a remaining power percentage curve corresponding to the BBU (312) (S102); determining a current moving window by a previous moving window point and the current moving window point (S103); and calculating a remaining capacity of the BBU (312) by the current moving window (S104).

Abstract: The present disclosure discloses a cloud platform resource cross-project transfer method and system, and a computer storage medium. The method includes: generating a slot position and an authentication key for a resource to be transferred based on a transfer request; generating a transfer Identity (ID) of the resource to be transferred, acquiring a project ID where the resource to be transferred is located based on a resource ID, constructing a transfer structure body, and writing the transfer structure body into a database; generating a transfer record of the transfer structure body in the database, and setting a resource status of the resource to be transferred as waiting for transfer in the transfer record; and returning the transfer ID, the authentication key, a transfer description, and the resource ID to a transfer user based on the transfer request.

Abstract: Provided is a dynamic Huffman encoding method based on a sorting network. Compared with traditional dynamic Huffman coding solutions, the method implements sorting on the basis of the sorting network, therefore the sorting process is not only stable, but also may ensure a stable sorting result; and moreover, sorting steps and related operations are simpler, thereby greatly simplifying the sorting and iteration processes, and thus the sorting efficiency is higher. In addition, the sorting process better facilitates program implementation and transplantation, and implementation of hardware and software may achieve good effects. In addition, the present disclosure further provides a dynamic Huffman coding apparatus and device based on a sorting network, and a readable storage medium, and the technical effects thereof correspond to the technical effects of the above method.

Abstract: The present application discloses a method for calculating equal lengths of wound differential wires, wherein the method includes: calculating total lengths of a P differential wire and an N differential wire of a to-be-wound-with-equal-lengths target differential-wire pair; according to the total lengths of the P differential wire and the N differential wire, calculating a differential-wire length difference between the P and N differential wires, and determining the one having a lower total length as a target differential wire; acquiring a distance between the P differential wire and the N differential wire, and using the distance as a protruding height; acquiring a preset protruding angle, and calculating the protruding height and the protruding angle according to a first calculating relation, to obtain a length added by one protruding; and according to the differential-wire length difference and the length added by one protruding, calculating a total quantity of protrudings.

Abstract: A device verification method, a UVM verification platform, an electronic apparatus, and a storage medium are provided. The method includes: determining a transaction class corresponding to a device under test, and instantiating a first interface in a callback function; sending input data to the device under test based on a bus protocol, and sequentially adding the input data to an array of the first interface according to addresses of the input data; instantiating a second interface in a monitor device, and sequentially adding output data to an array of the second interface according to addresses of the output data; and comparing the input data and the output data that have same addresses in the array of the first interface and the array of the second interface, and outputting a verification result of the device under test according to a comparison result.

Abstract: Disclosed are a cluster quorum method and apparatus, an electronic device, and a computer-readable storage medium. The method includes: acquiring a historical election set, and obtaining a first node quantity and a power condition by using the historical election set; generating a quorum parameter by using the first node quantity according to the power condition; acquiring a current network topology, and judging whether the current network topology satisfies the quorum parameter; and if the current network topology satisfies the quorum parameter, providing a cluster service. According to the method, a new network topology after a failure is not required to include the majority of nodes in an original cluster, whereby the network topology can continue to work no matter a quantity of nodes in the network topology while data consistency is ensured, improving viability of the cluster.

Abstract: A method and apparatus for expanding cloud volume, and a device and a readable medium are provided. The method includes: determining whether there is an request of a host in a cloud volume and confirming a snapshot started during cloud backup (S1); in response to there being no IO request, expanding a snapshot volume of the snapshot started during the cloud backup and the cloud volume (S2); expanding a bitmap of the snapshot started during the cloud backup, and setting a bitmap obtained by expanding as a first preset value (S3); after completion of a cloud backup task, expanding a snapshot volume of an another snapshot that is not started in the cloud backup (S4); and expanding a bitmap of the another snapshot that is not started in the cloud backup, and setting a bitmap obtained by expanding as a second preset value (S5).

Abstract: Provided is an image processing method, which includes: determining whether the number of written rows of source image data in a DDR is a preset number of rows or a stop write number of rows, the preset number of rows being an integer multiple of the number of rows of an image block determined according to a compression condition, and the image block being any image block in an image block matrix determined on the basis of an entire frame of image; if yes, reading the source image data of the current image block from the DDR on the basis of a first read address of the current image block, the number of rows, and the number of columns; and performing compression on the source image data of the current image block to obtain compressed data, and writing the compressed data to the DDR.

Abstract: Disclosed is an IO request pipeline processing device. The device mainly includes: an IO state buffer and a pipeline controller, wherein the IO state buffer includes multiple elements, for storing context information including a module calling sequence generated by a CPU; and the pipeline controller is configured to perform pipeline control on an IO request according to the context information. The device performs pipeline management on an IO processing state by arranging hardware modules, which shares the huge workload during an original CPU software control process, and also reduces the requirements for CPU design. At the same time, processing logic of the pipeline controller is triggered by the module calling sequence recorded in the IO state buffer, which may reduce the implementation power consumption and improve the implementation efficiency.

Abstract: A capacity expansion method for a storage cluster has the following steps: receiving an expansion instruction and determining a new expansion node corresponding to the instruction; traversing all placement groups to determine reference counts of OSDs corresponding to each of the groups, wherein the reference count of each OSD is the same as the number of groups; setting the OSD with the largest reference count associated with each group as an OSD to be determined; calling a data distribution interface to select an optimal OSD from the new node to replace the OSD to be determined. The OSD with the largest reference count associated with each group can only be replaced by an OSD in the new node, so that the data migration between the old nodes is eliminated, thereby improving expansion and reconstruction efficiency, reducing the resource utilization rate when the system is being expanded, and improving system performance.

Abstract: A node synchronization method and apparatus, an electronic device, and a computer-readable storage medium, include: acquiring node data sent by each slave node; obtaining a target cluster parameter from each piece of node data, and obtaining a standard cluster parameter by using the target cluster parameter based on an event queue length; determining an authorized slave node according to the standard cluster parameter, and judging whether a quantity of authorized slave nodes is greater than a quantity threshold; and if the quantity is greater than the quantity threshold, performing event playback on the authorized slave node by using a cluster event based on the standard cluster parameter; or if the quantity is not greater than the quantity threshold, controlling the authorized slave node to perform status synchronization on an unauthorized slave node, and performing event playback on the authorized slave node by using a cluster event after status synchronization.

Abstract: A ceiling fan module with an energy dissipation function and a configuration method thereof are disclosed. The ceiling fan module includes a fan rack, a fan and an energy dissipation assembly. The energy dissipation assembly passes through the fan rack and the fan and connects the fan rack and the fan; the energy dissipation assembly includes steel cables (3), high-damping vibration attenuation rings, fasteners and balancing weights; two high-damping vibration attenuation rings are sleeved on one steel cable, and the two high-damping vibration attenuation rings are respectively located at two ends of the steel cable; the high-damping vibration attenuation rings are mounted on the fan rack and the fan and separate the fan rack from the fan; the fasteners are mounted on the steel cables and are located on outer sides of the high-damping vibration attenuation rings and the fan rack.

Abstract: A handshake protocol circuit, a chip and a computer device. In the present handshake protocol circuit, according to level signals of a first protocol signal input end, a first protocol signal output end, a second protocol signal input end and a second protocol signal output end, a control circuit controls a data storage circuit to store and output operation data, which is equivalent to caching the operation data by the storage circuit. Therefore, when the number of functional module circuits is relatively large, the continuity of combination logic of handshake protocols between the module circuits is relatively reduced, thereby relatively ensuring the normal communication of data between the functional module circuits. In addition, the present disclosure further provides a handshake protocol chip and a computer device.

Abstract: A connection analysis method for a multi-port nested model and a medium. The method includes: acquiring instance information and nested relationships of a multi-port nested model, and building an instance relationship tree; reading port information and connection information of instances, and adding the port information and the connection information to the instance relationship tree; acquiring the port information and the connection information of the instances of each node layer by layer according to the instance relationship tree to build a connection dictionary; and acquiring port-to-port connection information of the instances by retrieving the connection dictionary to perform connection analysis on the multi-port nested model.

Abstract: A person re-identification method and apparatus, a device, and a readable storage medium. A homogeneous training network of an initial person re-identification network is trained by means of an objective function such as a knowledge synergy for dynamic classification probability loss function to obtain a final person re-identification network carrying more accurate final weight parameters, and a person re-identification task is performed by means of the final person re-identification network. In this way, the accuracy and performance of the person re-identification network to process the person re-identification task may be improved, the storage space in a device may be reduced, more beneficial to the storage and deployment of the portable device, and the amount of calculation of performing the person re-identification task may be reduced, thereby increasing the processing rate of the person re-identification task.

Abstract: The present disclosure discloses a node safe locking device and a server. An outer rail is disposed between two adjacent node modules. A middle rail is slidably assembled at the outer rail. Each middle rail is driven by one node module to translate in a same direction. When the middle rail moves, the linking and interlocking rod may be driven to reach different positions. When the middle rail moves outwards from the initial position together with one of the node modules, the locking guiding lean edge drives the linking and interlocking rod to move to the locking position. At this time, the blocking locking edge of the middle rail corresponding to the other node module is blocked by the linking and interlocking rod located at the locking position, and the node module may not move outwards to realize locking.

Abstract: An image recognition method and apparatus based on a systolic array, and a medium are disclosed. The method includes: converting obtained image feature information into a one-dimensional feature vector; converting an obtained weight matrix into a one-dimensional weight vector, and allocating a corresponding weight group to each node in a trained three-dimensional systolic array model; performing multiply-accumulate of the feature vector and a weight value on the one-dimensional feature vector in parallel by using the three-dimensional systolic array model, to obtain a feature value corresponding to each node, the feature values with different values reflecting article categories contained in an image; and determining an article category contained in the image according to the feature value corresponding to each node and a pre-established corresponding relationship between the feature value and the article category.

Abstract: An online upgrading method for a power supply, capable of enabling the power supply to simultaneously perform work output in the process of upgrading the power supply without using two sets of power supplies, and including: S1, determining whether the power supply needs to be corrected, and if the power supply needs to be corrected, sending an upgrading request to a master control chip; S2, the master control chip turning off any transformer in the power supply and sending a starting instruction to a secondary control chip, and the secondary control chip controlling the power supply to enter an upgrading mode according to the starting instruction; S3, when the power supply enters the upgrading mode, the power supply transmitting upgrading data to the secondary control chip by means of a transmission protocol.

Abstract: A method and apparatus for optimizing an open block in a solid-state drive, a device, and a readable medium. The method includes: detecting, every preset time period, whether a block in a solid-state drive is in an open block state, and putting a detected block in the open block state into a table; monitoring in real time whether there is a new record in the table; in response to detecting that there is a new record in the table, determining whether a block in the new record has an abnormal power-off mark; and in response to the block in the new record has an abnormal power-off mark, filling a next layer of data of the block having the abnormal power-off mark with content in a preset format so as to seal the block.

Abstract: A power regulation and control method, apparatus and device, and a readable storage medium.