Abstract: A charging circuit includes at least two direct current-direct current (DC-DC) conversion circuits coupled between a power supply end and a charging end of the charging circuit. A voltage input end of the DC-DC conversion circuit is coupled to the power supply end, and a voltage output end of the DC-DC conversion circuit is coupled to the charging end. The at least two DC-DC conversion circuits include a first DC-DC conversion circuit and a second DC-DC conversion circuit. The first DC-DC conversion circuit is configured to perform voltage conversion on a voltage at the power supply end, to output a first charging signal to the battery. The second DC-DC conversion circuit is configured to perform voltage conversion on the voltage at the power supply end to output a second charging signal to the battery.

Abstract: The present application relates to an in-memory computing module and method, and an in-memory computing network and a construction method therefor. The in-memory computing module comprises at least two computing submodules, and low latency can be achieved when computing units in the computing submodules access memory units. Multiple computing submodules present a symmetric layer design, and such a symmetric layer structure facilitates the construction of a topology network so as to achieve large-scale or ultra-large-scale computation. The memory capacity of the memory units in each computing submodule can be customized, and designed flexibly. These computing submodules are in a bonding connection, and the data bit width after the bonding connection may be positive integer multiple of the data bit width of the computing units, so that high data bandwidth is achieved.

Abstract: The present application provides a data backup method and a restoration method for an NVDIMM, an NVDIMM controller and an NVDIMM. The NVDIMM (200) comprises a DRAM (201), a NAND flash memory (202) and an NVDIMM controller (100), the NVDIMM controller (100) controlling the NVDIMM (200) and comprising a DDR controller (101), a NAND flash memory controller (102), a data backup module (103) and a data restoration module (104), the DDR controller (101) using and enabling DBI mechanism. During data backup, the DDR controller (101) reads N-bit DQi and 1-bit DBI from the DRAM (201) and sends the same to the data backup module (103). When DBIi is “1”, the data backup module (103) compares the DQi and DQi-1. If the number of bits of the DQi and the DQi-1 with different values is greater than N/2, then the DQi is inverted and the DBIi is set to “0”, and otherwise the DQi and the DBIi are remained unchanged. When the DBIi is “0”, the DQi and the DBIi are remained unchanged.

Abstract: An LLC chip and a cache system are provided. The LLC chip includes a storage wafer, an interface logic unit and a packaging substrate. The interface logic unit and the storage wafer are arranged in sequence on the packaging substrate. A plurality of processing assemblies is connected to the interface logic unit so as to perform read and write operations on the storage wafer through the interface logic unit. The storage wafer includes at least one storage space. The plurality of processing assemblies performs read and write operations on a specific storage space or any storage space so as to achieve non-shared independent storage access or shared storage access. Signal transmission bandwidth is thus improved by means of the plurality of distributed interfaces, and data is cached by means of a non-shared mode or shared mode so as to increase data accessing efficiency of the processing assemblies.

Abstract: The NVDIMM (200) comprises a DRAM (201), a NAND flash memory (202) and a NVDIMM controller (100), the NVDIMM controller (100) controlling the NVDIMM (200) and comprising a DDR controller (101), a NAND flash memory controller (102), a data backup module (103) and a data recovery module (104), and the DDR controller (101) using and enabling DBI. The backup method comprises: reading, by the DDR controller (101), N-bit DQ and 1-bit DBI from the DRAM (201) and sending the same to the data backup module; encoding, by the data backup module (103), the N-bit DQ and the 1-bit DBI into N-bit EDQ according to the values of the N-bit DQ and the 1-bit DBI, and sending the N-bit EDQ to the NAND flash memory controller; and receiving, by the NAND flash memory controller (102), the N-bit EDQ and writing the N-bit EDQ into the NAND flash memory (202).

Abstract: The present disclosure provides a method for quantitative evaluation on a sensitivity of a shale oil and gas reservoir to injected fluids. The method includes the following steps: (I) preparation of rock samples; (II) quantitative evaluation on sensitivities of a shale porosity and a bedding fracture permeability to an injected fluid; and (III) quantitative evaluation on a sensitivity of a shale matrix permeability to an injected fluid. A method for comprehensive evaluation on a sensitivity of a shale oil and gas reservoir to injected fluids is innovatively provided based on the nuclear magnetic resonance testing technology with two basic physical property parameters: porosity and permeability. The method realizes quantitative evaluation on sensitivities of pores of different sizes and matrix of shale and a bedding fracture permeability to injected fluids, and realizes quantitative and accurate evaluation on a sensitivity of a shale oil and gas reservoir to injected fluids.

Abstract: A method for extracting a dam emergency event based on a dual attention mechanism is provided. The method includes: performing data preprocessing, building a dependency graph, building a dual attention network, and filling a document-level argument. The performing data preprocessing includes labeling a dam emergency corpus and encoding sentences. Building a dependency graph includes assisting a model to mine a syntactic relation based on a dependency. Building a dual attention network includes weighing and fusing an attention network based on a graph transformer network (GTN) and capturing key semantic information in the sentence. Filling a document-level argument includes filling a document-level argument by detecting a key sentence and ordering a semantic similarity. The method introduces a dependency and overcomes the long-range dependency problem based on the dual attention mechanism, thus achieving high identification accuracy and reducing a lot of labor costs.

Abstract: Disclosed is an intelligent recognition method for a time sequence image of a concrete dam defect. The method includes: extracting a feature sequence of the time sequence image containing the concrete dam defect; matching a located defect with a real defect by using an objective function; adding a loss term based on a tight sensing intersection-over-union to a loss function of a model so as to pay attention to integrity of a defect sequence and improve accuracy; and extracting a defect feature and recognizing a defect type after completing defect location. According to the present disclosure, the time sequence image of the concrete dam defect is detected effectively, so that a defect in a long image sequence can be located and the defect type can be recognized accurately.

Abstract: A time-series image description method for dam defects based on local self-attention mechanism is provided, including: performing frame sampling on an input time-series image of dam defect, extracting a feature sequence using a convolutional neural network and using the sequence as an input to a self-attention encoder, where the encoder includes a Transformer network based on a variable self-attention mechanism that dynamically establishes contextual feature relations for each frame; generating description text using a long short term memory (LSTM) network based on a local attention mechanism to enable each word predicted to be feature related to an image frame, improving text generation accuracy by establishing a contextual dependency between image and text. A dynamic mechanism is added to the present application for calculating the global self-attention of image frames, and LSTM networks with added local attention directly establish the correspondence between image and text modal data.

Abstract: The present disclosure provides devices, methods, and systems for controlling a connection, via a communication apparatus, between a first apparatus and a second apparatus. For instance, the methods may include generating a connection signal in response to determining that a second apparatus has established a new connection with the communication apparatus; generating a control signal based on the connection signal; and changing, based on the control signal, a connection state between the first apparatus and the communication apparatus to cause a new connection relationship between the first apparatus and the second apparatus to be established for a communication between the first apparatus and the second apparatus.

Abstract: Provided are a near-memory computing module and method, a near-memory computing network, and a construction method. The near-memory computing module employs a three-dimensional design, computing submodules and a memory submodule are provided in different layers, the layers are connected by means of bonding, and the total data bit width connected is a positive integer multiple of the data bit width of a single computing unit (201). Multiple memory units (203) are provided in the memory submodule, thus allowing a large memory capacity to be implemented in a single memory submodule. Computing units of the computing submodule exchange data with each other via an exchange interface of a router (202); moreover, among the computing submodules data is accessed via a routing interface. The near-memory computing network utilizes the near-memory computing module and satisfies computing requirements of different scales.

Abstract: The present application relates to an in-memory computing module and method, and an in-memory computing network and a construction method therefor. The in-memory computing module comprises at least two computing submodules, and low latency can be achieved when computing units in the computing submodules access memory units. Multiple computing submodules present a symmetric layer design, and such a symmetric layer structure facilitates the construction of a topology network so as to achieve large-scale or ultra-large-scale computation. The memory capacity of the memory units in each computing submodule can be customized, and designed flexibly. These computing submodules are in a bonding connection, and the data bit width after the bonding connection may be positive integer multiple of the data bit width of the computing units, so that high data bandwidth is achieved.

Abstract: A method for extracting a dam emergency event based on a dual attention mechanism is provided. The method includes: performing data preprocessing, building a dependency graph, building a dual attention network, and filling a document-level argument. The performing data preprocessing includes labeling a dam emergency corpus and encoding sentences. Building a dependency graph includes assisting a model to mine a syntactic relation based on a dependency. Building a dual attention network includes weighing and fusing an attention network based on a graph transformer network (GTN) and capturing key semantic information in the sentence. Filling a document-level argument includes filling a document-level argument by detecting a key sentence and ordering a semantic similarity. The method introduces a dependency and overcomes the long-range dependency problem based on the dual attention mechanism, thus achieving high identification accuracy and reducing a lot of labor costs.

Abstract: The battery provided in this application and having at least two ports is obtained by winding a first electrode and a second electrode that have a novel structure (for example, a plurality of tabs separately protrude from a first long side and a second long side of an electrode, and the tabs are disposed on a non-edge area). In addition, in the terminal device including the battery, the battery and another charging/discharging component may form at least two charging/discharging links, so that the terminal device can have a stronger fast charging capability, and heat dissipation pressure of each charging/discharging link can be relieved. Moreover, stress inside the battery is evenly distributed, so that interface deterioration of the electrode that is caused by stress unevenness can be alleviated. This effectively reduces a risk of shading and lithium plating generated in a cathode charging/discharging cycle, and improves performance of the battery.

Abstract: Provided is an early warning method of trapping in a vehicle. The early warning method includes: a current bearing value of a seat is stored as an initial value when unlocking of a vehicle door is detected, a weight difference is obtained by performing a subtraction operation between the current bearing value of the seat and the initial value when locking of the vehicle door is detected, and a trapping alarm signal is given when the weight difference is greater than or equal to a preset first weight threshold. An early warning device of trapping in a vehicle and a computer readable storage medium are further provided. With the adoption of the embodiment of the present disclosure, a false alarm as a result of the article fixed on the seat of the vehicle in the conventional art may be effectively solved, and an early warning for the child or the pet staying in the vehicle may be effectively implemented at the same time.

Abstract: The present application provides a data backup method and a restoration method for an NVDIMM, an NVDIMM controller and an NVDIMM. The NVDIMM (200) comprises a DRAM (201), a NAND flash memory (202) and an NVDIMM controller (100), the NVDIMM controller (100) controlling the NVDIMM (200) and comprising a DDR controller (101), a NAND flash memory controller (102), a data backup module (103) and a data restoration module (104), the DDR controller (101) using and enabling DBI mechanism. During data backup, the DDR controller (101) reads N-bit DQi and 1-bit DBI from the DRAM (201) and sends the same to the data backup module (103). When DBIi is “1”, the data backup module (103) compares the DQi and DQi-1. If the number of bits of the DQi and the DQi-1 with different values is greater than N/2, then the DQi is inverted and the DBIi is set to “0”, and otherwise the DQi and the DBIi are remained unchanged. When the DBIi is “0”, the DQi and the DBIi are remained unchanged.

Abstract: The present application provides a data backup and recovery method for an NVDIMM, an NVDIMM controller (100) and an NVDIMM (200). The NVDIMM (200) comprises a DRAM (201), a NAND flash memory (202) and a NVDIMM controller (100), the NVDIMM controller (100) controlling the NVDIMM (200) and comprising a DDR controller (101), a NAND flash memory controller (102), a data backup module (103) and a data recovery module (104), and the DDR controller (101) using and enabling DBI. The backup method comprises: reading, by the DDR controller (101), N-bit DQ and 1-bit DBI from the DRAM (201) and sending the same to the data backup module; encoding, by the data backup module (103), the N-bit DQ and the 1-bit DBI into N-bit EDQ according to the values of the N-bit DQ and the 1-bit DBI, and sending the N-bit EDQ to the NAND flash memory controller; and receiving, by the NAND flash memory controller (102), the N-bit EDQ and writing the N-bit EDQ into the NAND flash memory (202).

Abstract: Provided is an early warning method of trapping in a vehicle. The early warning method includes: a current bearing value of a seat is stored as an initial value when unlocking of a vehicle door is detected, a weight difference is obtained by performing a subtraction operation between the current bearing value of the seat and the initial value when locking of the vehicle door is detected, and a trapping alarm signal is given when the weight difference is greater than or equal to a preset first weight threshold. An early warning device of trapping in a vehicle and a computer readable storage medium are further provided. With the adoption of the embodiment of the present disclosure, a false alarm as a result of the article fixed on the seat of the vehicle in the conventional art may be effectively solved, and an early warning for the child or the pet staying in the vehicle may be effectively implemented at the same time.

Abstract: The invention relates to a display screen and a packaging method thereof. The packaging method of the display screen comprises the following steps: providing a substrate of the display screen; evaporating an organic light-emitting material on the substrate; printing a first packaging pattern and a second packaging pattern on the cover plate of the display screen, wherein the first packaging pattern surrounds the second packaging pattern; etching the organic light-emitting material by using a first laser on the substrate; fitting the substrate and the cover plate so that the first packaging pattern and the substrate are fitted, and the second packaging pattern and the organic light-emitting material are fitted; sintering the first packaging pattern and the second packaging pattern by using a second laser on one of the substrate and the cover plate; and performing punching on the display screen.