169 results about "Faulty cell" patented technology

The invention discloses a power battery fault diagnosis method and system. The method comprises the following steps: establishing a voltage matrix of a battery cell, extracting a sub-matrix interval of the voltage matrix, establishing a median matrix according to the median of the battery cell voltage in the sub-matrix interval, establishing a voltage deviation matrix according to the sub-matrix interval and the median matrix, calculating a voltage deviation increment according to a voltage deviation value in the voltage deviation matrix, establishing a voltage deviation increment matrix, accumulating the number of times that the voltage deviation value in the voltage deviation matrix exceeds a set interval, establishing a voltage deviation accumulation number matrix, establishing a jointmatrix, performing two-dimensional clustering on the established joint matrix by adopting a DBSCAN density clustering method, and judging whether the battery cell has a fault or not according to a clustering result. According to the power battery fault diagnosis method and system provided by the invention, the fault judgment efficiency of the battery cell can be improved, and the judgment accuracycan be improved.

A semiconductor integrated circuit includes a memory which has redundant lines for repair in both a column direction and a row direction. A test pattern generating section generates a specific test pattern for the memory. A comparing section reads an output from the memory to judge whether or not a fault cell exists in the memory and outputs a signal which shows existence or nonexistence of a faulty cell. The circuit includes a first data storage section, which operates in a first test mode for a test of the memory and a second test mode for a scan test, and a second data storage section which receives an output signal of the comparing section to store a state of presence or absence of a failure corresponding to the existence or nonexistence of the faulty cell. A repair judging section receives an input to the first data storage section and an output of retained contents in the first data storage section and judges that the memory is repairable. When the second data storage section is in a state where the failure exists, the first data storage section holds the data retained in the first data storage section.

An enclosed two-part computer controlled cyclical and sequential through-flow conveying, usage and metering System (200) is disclosed, for use in the electric vehicle motive power provision industries, for said two-part enclosed System to sequentially convey small-volume rechargeable Cell-Modules by sequential conveyor-means in a metered through-flow sequential conveying manner within said two-part System wherein the first part is a Stationary Part that includes a specially manufactured Cell-Module dispensing Bowser and a specially manufactured Cell-Module Charging-Bay and wherein the second part is a Movable Part that includes a specially manufactured or specially adapted Cell-Module powered electric Vehicle having a specially manufactured Cell-Module Chamber installed within.A Nozzle (3) and a Portal (4) respectively provide means for the Stationary Part and the Movable Part to exchange a choosable plurality of small-volume rechargeable Cell-Modules (100) and (500).A System (200) provides a succinct fully enclosed matingly-co-operative interconnection means for the System (200) to sequentially dispense Charged Cell-Modules and remove depleted Cell-Modules. The System also removes faulty Cell-Modules and if necessary extinguishes, and isolates for fire safety purposes, over-heating, deformed, or ignited Cell-Modules.The invention provides means that parallel, mimic or improve upon the metered bowser dispensing manner by which a choosable sequential plurality of small volumes of fossil fuel are sequentially delivered to a conventional fossil fuel vehicle by a dispensing bowser at a conventional fuel Service Station facility. The invention also provides optional means for Cell-Modules to be recharged in situ by use of a specially manufactured charger.

One embodiment of the invention relates to a method for repairing a memory array. In the method, a group of at least one memory cell is dynamically analyzed to determine whether the memory array includes at least one faulty cell that no longer properly stores data. If the group includes at least one faulty cell, at least the at least one faulty cell is associated with at least another cell. Other methods, devices, and systems are also disclosed.

The present systems include a memory module containing a plurality of RAM chips, typically DRAM, and a memory buffer arranged to buffer data between the DRAM and a host controller. The memory buffer includes an error detection and correction circuit arranged to ensure the integrity of the stored data words. One way in which this may be accomplished is by computing parity bits for each data word and storing them in parallel with each data word. The error detection and correction circuit can be arranged to detect and correct single errors, or multi-errors if the host controller includes its own error detection and correction circuit. Alternatively, the locations of faulty storage cells can be determined and stored in an address match table, which is then used to control multiplexers that direct data around the faulty cells, to redundant DRAM chips in one embodiment or to embedded SRAM in another.

This invention belongs to the lithium-ion battery field, and in particular, to a safety device of a lithium-ion battery. The safety device of a lithium-ion battery comprises a top cover plate, a first electrode post, a second electrode post, an explosion-proof valve, and a conductive plate, wherein the first electrode post, the second electrode post, and the explosion-proof valve are respectively positioned on the top cover plate; the first electrode post is electrically connected to the top cover plate; the second electrode post is assembled in an insulated way to the top cover plate; and the second electrode post is electrically connected to the conductive plate; where an air-pressured flip plate is further positioned on the top cover plate, and a cut is positioned on the air-pressured flip plate. The device may be used to avoid a safety problem caused by overcharging when an accident occurs on a cell, and release energy of the faulty cell through an outer short-circuit, thereby avoiding a more serious safety accident and ensuring safety performance of the battery.

The invention discloses a method for implementing holistic information management in a communication base station. The method comprises the following steps of: acquiring environmental information in the base station; acquiring related security information in the base station; acquiring energy consumption information of the base station; acquiring related information of an air-conditioning system of the base station; acquiring the operating state of energy-saving equipment, acquiring electrical energy, analyzing power saving quantity and acquiring alarm processing information; acquiring video information; uploading the acquired information to a server of an upper computer of a base station information system through a network, and performing asset management analysis, dynamic ring monitoring analysis, energy consumption management analysis, air-conditioning energy-saving equipment operating analysis and base station energy-saving data analysis on the acquired data, wherein the acquired data can be compatible with other dynamic ring systems; and sending related instructions to the base station through the network, thus realizing acquisition and monitoring of dynamic rings. The environmental information in the base station comprises information of temperature and humidity inside and outside the base station and smoke alarm, water immersion alarm, power failure, high and low voltage, default phase, total electrical degree, battery fault, battery low voltage and electricity stealing.

A memory address remapping architecture is applied to execute an address remapping method for repairing a main memory. A valid flag and an essential flag in a TCAM corresponding to at least one subcube address in a spare memory are initialized, and the main memory is checked to find out some faulty cell addresses. The Hamming distance between the subcube address and the faulty cell address is calculated, and the faulty cell address is merged into the subcube address by a masked bits concentrator when the Hamming distance is not larger than an address-width degree of the subcube address and the merged number of the subcube address is not larger than a threshold value.

Disclosed is a build-in self-diagnosis and repair method and apparatus in a memory with syndrome identification. It applies a fail-pattern identification and a syndrome-format structure to identify at least one type of faulty syndrome in the memory during a memory testing, then generates and exports fault syndrome information associated with the corresponding faulty syndrome. According to the fault syndrome information, the method applies a redundancy analysis algorithm, allocates spare memory elements and repairs the faulty cells in the memory. The syndrome-format structure respectively applies single-faulty-word-syndrome format, faulty-row-segment-syndrome format, and faulty-column-segment-syndrome format for different faulty syndromes, such as faulty row segments and single faulty words, faulty column segments and single faulty words, all of single faulty words, faulty row segments and faulty column segments, and so on.

The present subject refers to a method for battery fault diagnosis and prevention of hazardous conditions. The method comprises determining a plurality of parameters defined as one or more of current, voltage, or state of charge during operation of a battery-powered device. Further, one or more likelihood ratios related to malfunctioning of the battery are evaluated based on determined parameters. At least one of: a current battery-state or a type of current battery state are determined based on the one or more likelihood ratios as evaluated.

A memory address remapping architecture is applied to execute an address remapping method for repairing a main memory. A valid flag and an essential flag in a TCAM corresponding to at least one subcube address in a spare memory are initialized, and the main memory is checked to find out some faulty cell addresses. The Hamming distance between the subcube address and the faulty cell address is calculated, and the faulty cell address is merged into the subcube address by a masked bits concentrator when the Hamming distance is not larger than an address-width degree of the subcube address and the merged number of the subcube address is not larger than a threshold value.

Disclosed is a semiconductor storage device in which a cell array including a plurality of cells in need of refresh for data retention includes the redundancy area, which has a plurality of redundant cells for replacing faulty cells of a normal area within the cell array. When the redundancy area is tested, a refresh counter circuit for generating and outputting refresh addresses rearranges the address in such a manner that a row address of the redundancy area is substantially reduced and placed on a lower-order bit side inclusive of the LSB of the counter.

The invention discloses a method for detecting user network access quality. The method comprises the following steps: counting the flow of a cell within continuous T+1 days, wherein T is a preset statistical cycle; judging whether the cell is a faulty cell according to the flow of the cell within continuous T+1 days; when it is judged that the cell is the faulty cell, screening a resident user from the users of the faulty cell; and counting the network access indexes of the resident user, and screening the user with worse network access quality from the resident user. Meanwhile, the invention further discloses an apparatus for detecting the user network access quality.

A faulty cell detection device and a faulty cell detection method are provided for detecting a faulty cell of a battery pack using a current sensor. The device may include a current sensor including a first current sensor configured to measure a current of a battery pack including the battery module, and a second current sensor configured to measure a current of a battery cell among battery cells in the battery module. The device may also include a faulty cell detector configured to detect occurrence of the faulty cell based on the measured current of the battery pack and the measured current of the battery cell.

The invention discloses battery fault or failure detection equipment and a use method thereof, and particularly relates to the technical field of battery detection, the battery fault or failure detection equipment comprises a rotating table, a continuous detection mechanism is embedded in the top end of the rotating table, and a classification mechanism is mounted on one side of the continuous detection mechanism; the continuous detection mechanism comprises a transmission motor arranged at the embedding position of the top end of the rotating table. By arranging the continuous detection mechanism and the classification mechanism, a plurality of batteries can be continuously placed, one battery is detected to the next time after detection, the placement time is shortened, continuous disc detection is carried out, the detection continuity is effectively improved, the detection is more efficient, time and labor are saved, classified conveying is carried out, the efficient classification performance is effectively improved, the use is more convenient, confusion can be avoided, and moreover, a guide inclined plate can realize stable rotation in the rotating process, so that the stability of stable sliding of the batteries is better, and the practicability is better.