505 results about "Monoboard" patented technology

The invention relates to a network real-time synchronization communication system, and relates to the technical field of computer network communication. The system comprises four core modules: a hardware optical IO synchronization module which integrates a multi-wavelength optical transceiver array and an anti-jitter circuit and provides a nanosecond global clock signal, and the synchronization precision is less than or equal to 15ns; the time sequence arrangement module is used for dividing a fixed time window and a dynamic buffer window based on a time sensitive network, supporting a priority preemption mechanism of the SRIO bus and realizing deterministic data transmission; the distributed RTDATA nodes replace a traditional single-board computer, a heterogeneous computing unit and an intelligent storage controller are integrated, and protocol stack processing delay is reduced through the zero copy technology; according to the dynamic multicast routing system, a safely isolated multicast tree is constructed as required, and link load distribution is optimized in combination with machine learning. Through collaborative design of hardware optical synchronization and dynamic data arrangement, the problem of real-time performance reduction caused by multi-node communication concurrence is solved.

The invention discloses a power supply circuit, a power supply method, a server, a product and a medium, and relates to the technical field of server power supply, the total power demand of the server is dispersed through the parallel design of multiple power panels, the bus current of a single board connected to a first voltage is reduced to the safe bearing range of an MOS tube, the impact risk is reduced, and the service life of the server is prolonged. The electronic fuse is matched with the single-board power to set an overcurrent protection threshold value, and the short-circuit protection response time is shortened; each board is independently provided with a power supply brick to realize second voltage localization conversion and single board output current reduction, a multi-board output end combined power supply design is combined, a heat source is dispersed to eliminate heat accumulation, the through-current capability is multiplied through a parallel path, and the heat dissipation and electrical design feasibility of the circuit board is improved. The technical problems of MOS tube over-limit, overcurrent protection delay, circuit board heat accumulation and difficult through-flow caused by large current brought by a power supply in a high-power server are solved, and the technical effects of enhancing power supply reliability and optimizing energy efficiency are achieved.

The invention discloses an electric energy meter single board defect detection method and system based on multi-modal data fusion, and relates to the technical field of electric energy meter intelligent quality detection.The electric energy meter single board defect detection method comprises the steps that electric energy meter single board images are synchronously collected and subjected to fusion preprocessing, and fused image data are obtained; constructing a defect detection model, and training the defect detection model; and performing real-time reasoning on the fused image data by utilizing the trained defect detection model, generating a defect detection result and evaluating the confidence coefficient of the defect detection result. According to the multi-modal data fusion-based electric energy meter single board defect detection method provided by the invention, synchronous acquisition and feature enhancement of multi-modal information of the electric energy meter single board are realized, high-quality input data are provided for a subsequent detection model, and deep feature modeling and recognition capability optimization oriented to various defects are realized; a whole-process reasoning mechanism of defect space positioning, type classification and credibility grading is realized, and finally, the purposes of accurate defect labeling and convenience in automatic sorting and quality closed-loop control are achieved.

The invention discloses a calibration method and system of ATE test equipment. The calibration method comprises the steps of obtaining calibration data, performing self-compensation and measuring and calibrating a tested single board through a calibration device. The step of obtaining the calibration data comprises the steps of selecting one FPGA from the to-be-tested single boards as a calibration source, calibrating and calibrating the calibration source, calibrating the to-be-tested single board where the calibration source is located as a calibration device through the calibration source, and taking time delay data between a calibration device signal and a calibration source signal as the calibration data. The self-compensation comprises the following steps: compensating the signal delay of the calibration device according to the calibration data, and ensuring that the calibration device provides a reference synchronization signal for the tested single board. The FPGA is adopted as a calibration source, calibration of the test equipment can be completed without an external TDC calibration board, the limitation of the number of channels of a traditional TDC calibration board is broken through, and the accuracy and reliability of a calibration result are also improved.

A method and system for stacking and unstacking of veneer includes using one or more veneer analysis systems to collect dimensions and quality data associated with the veneer being used to create a stack of veneer. In addition, location data for the veneer in the stack of veneer is recorded. The dimensions data, the quality data, and the location data for all the veneer in a stack of veneer is then combined into a stack of veneer profile data. The stack of veneer profile data is then correlated to the stack of veneer and stored in a database. Consequently, the location, quality, and dimensions data of the veneer making up the stack of veneer is known so that an accurate determination can be made of the volume, surface area and quality of veneer in the stack. In another example, 3D laser profiling is used to identify a veneer sheet portion that is at the top of a stack of veneer sheet portions so that the veneer sheet portion at the top of the stack can be identified and removed from the stack during unstacking.

The invention discloses a single board detection system and method, and relates to the field of rail transit, and the system comprises an adapter plug-in box which is provided with at least one first slot and at least one second slot, the first slot is used for connecting a detected plug-in, and the second slot is used for connecting an accompanying test plug-in; and the main control assembly is connected with the adapter plug-in box and is configured to send test information corresponding to the tested plug-in to the accompanying test plug-in when the tested plug-in is a first type of plug-in, determine a test result of the tested plug-in based on test data, and output a preset test signal to the tested plug-in when the tested plug-in is a second type of plug-in, obtaining a test result of the tested plug-in; and the accompanying test plug-in is configured to load configuration parameters corresponding to the test information so as to disguise the accompanying test plug-in as a target interaction plug-in of the tested plug-in, then interact with the tested plug-in and collect test data in the interaction process. According to the invention, the cost of developing special detection equipment for different plug-in types can be reduced, and the universality of the detection system is improved.

A printed circuit board (PCB) serves as a core basic component of the electronic information industry, and the manufacturing process of the PCB faces double challenges of rapid iteration and customization requirements of electronic products. A traditional PCB manufacturing technology (such as mechanical board manufacturing, silk-screen printing and the like) is suitable for large-scale production, but has the defects of long production period, high cost, minimum order quantity limitation and the like, and is difficult to meet the market requirements of small batch and high flexibility. Under the background, the 3D printing technology is completely exposed by means of the efficient customized production capacity, the supply efficiency of a minimum batch of PCBs (such as test single boards and concept verification boards) can be remarkably improved, the production batch constraint of a traditional method is avoided, and the comprehensive cost advantage is shown in the design verification stage. However, the current 3D printing PCB technology is still limited by the circuit complexity and the number of layers and is mostly limited by single / double panel manufacturing, and the performance of the conductive slurry and the base material needs to be optimized urgently. The key technical bottlenecks of interlayer vertical interconnection, multilayer medium lamination manufacturing and the like need to be broken through in the future, so that 3D printing of high-density and multilayer arbitrary interconnection PCBs is achieved, deep application of the technology in the field of intelligent manufacturing and new materials is promoted, and an innovative development opportunity is created for the PCB industry.

Hub adaptor to convert an existing hub (i.e., old fashioned finger plate assembly, a single plate assembly) which requires each individual finger to be pulled in physically by either pliers or finger pullers, to one compatible with a modern quick change finger system, or other two-plate systems.

The invention discloses a maintenance and detection platform for an aviation airborne electronic product, and relates to the technical field of aviation electronic test.The maintenance and detection platform comprises the steps that firstly, a plurality of functional areas to be tested are established through an auxiliary deep maintenance unit according to a target single board of the aviation airborne electronic product, and Mark point coordinates input and output by the functional areas to be tested are marked and positioned; therefore, based on the Mark point coordinates, a user is guided to connect the probe-type excitation injection unit and the probe-type high-speed acquisition unit with the input and output pins of the to-be-tested functional area through the universal columns, so that a standard excitation source is applied to the to-be-tested functional area of the target single board for fault test, and a response signal of the functional area of the target single board in the fault injection test is acquired. Therefore, the functional area with the fault of the target single board is positioned according to the response signal, and the fault reason is further determined according to the mechanism of the functional area to be detected and the fault form. The fault can be isolated and positioned to the combination of a plurality of functional areas of the single board, and the maintenance and detection period of aviation equipment is shortened.

The embodiment of the invention provides a chip system, an operation method, a data processing single board and electronic equipment, and is applied to the field of chip processing. The chip system comprises a control circuit, a memory, a memory gating circuit and at least two first processors, the at least two first processors are coupled through the memory gate circuit and the memory. The control circuit is used for responding to startup of the at least two first processors and outputting a storage gating control signal to the storage gating circuit, and the storage gating control signal is used for indicating the storage gating circuit to select one of the at least two first processors to establish data interaction connection with the memory. The selected first processor is used for reading first program firmware from the memory through the memory gating circuit when the data interaction connection is established with the memory, and the first program firmware is used for function running of one or more first processors in the at least two first processors. According to the embodiment of the invention, the device cost is reduced.

The invention discloses a distributed bus protection device for a hydropower station and a bus differential protection method, the distributed bus protection device comprises a host, the host is in communication connection with a plurality of sub-machines, and the host and the sub-machines are in single-channel or dual-channel optical fiber connection; the bus is provided with a plurality of branches, and the sub-machines are connected with the branches; wherein the branch circuit is provided with a plurality of circuit breakers used for controlling the on-off of the branch circuit, the branch circuit is also provided with a current transformer used for carrying out current sampling on the branch circuit, and the circuit breakers and the current transformer are connected with the sub-machine. The distributed topology design of cooperation of the host and the plurality of sub-machines can be adapted to various different bus systems, and a dual-channel optical fiber redundancy communication mechanism is matched to effectively overcome the fatal defect of protection failure of the whole station caused by a single-point fault of a centralized device. And when the host single board fails, the sub-machines can still realize cross-interval collaborative tripping through the preset local / opposite side identification codes.

The present disclosure provides a multi-channel signal sampling device and a calibration system, belonging to the technical field of signal processing; the multi-channel signal sampling device comprises a PXIe chassis and at least two acquisition cards arranged in the PXIe chassis; the multi-channel signal sampling device further comprises a synchronization program component, which is executed to determine the delay data between each channel of each acquisition card and the trigger channel according to the trigger channel currently located in the first target acquisition card and the pre-stored synchronization calibration basic data, and to synchronize each channel and the trigger channel according to the delay data; the synchronization calibration basic data comprises single-board calibration data and cross-board calibration data; the multi-channel signal sampling device can solve the problems of high synchronization calibration cost and design difficulty existing in the current PXIe sampling device.

The invention discloses a circuit board manufacturing method and electronic equipment, and relates to the technical field of production data collaborative analysis, and the method comprises the steps: firstly building a process influence coupling model based on a single board time sequence data sequence corresponding to the whole flow of a production line in a historical production process; the process influence coupling model can quantify the dynamic influence capability of each process on the subsequent quality state. Therefore, the process influence coupling model and the credibility of the data source equipment of each process can be combined to determine the fusion weight expressing the influence causal relationship of each process and the reliability of the data. Thus, the fusion weight is utilized to fuse the quality features of each process of the current batch, a comprehensive quality representation vector corresponding to the whole-process collaborative state can be obtained, and a defect propagation path diagram matched with the comprehensive quality representation vector is constructed. By means of the defect propagation path diagram, the target working procedure which causes the circuit board to generate defects at present can be determined from the production line, and the target working procedure is optimized, so that the overall process performance can be effectively improved.

The invention discloses a manufacturing method for preventing a single-board guitar panel from recessing, and relates to the technical field of manufacturing for preventing the single-board guitar panel from recessing, and the method comprises the steps: carrying out the finite element stress simulation of a three-dimensional digital model of the single-board guitar panel, and determining a high-stress region in a stress state; according to the distribution characteristics of the high-stress area, generating a structure model of the bionic support network through topological optimization; preparing a lightweight support net with a bionic structure by adopting an additive manufacturing process based on the structure model; the method comprises the following steps: placing a to-be-processed veneer panel on a rigid mold with a preset curved surface, and carrying out plastic pre-deformation on the to-be-processed veneer panel under the action of vacuum negative pressure to obtain a pre-formed panel; a lightweight supporting net is fixed to a high-stress area on the inner side of the preformed panel; the modularized metal framework with preloaded stress is installed at a preset position in the guitar body to form a reverse acting force system which resists the downward sinking of the panel; and carrying out integral curing treatment on the guitar body provided with the supporting net and the metal framework to complete integrated manufacturing.

The utility model provides an electrical parameter measuring circuit, an electrical parameter measuring unit comprises a plurality of signal driving ends and a plurality of voltage output ends, each signal driving end corresponds to one voltage output end, and the measuring signal output end of each analog switch is correspondingly connected with one signal driving end; each sampling output end of the multiplexer is connected with the input end of the signal conditioning unit, and the voltage input end corresponding to the sampling output end is connected with one voltage output end in the electrical parameter measuring unit; the input end of the analog-to-digital conversion unit is connected with the output end of the signal conditioning unit, and the output end of the analog-to-digital conversion unit is connected with the input end of the main controller. In the scheme, a discrete scheme is replaced by the chip for measuring the electrical parameters, a single chip realizes the functions of voltage and current conversion and amplification, digital-to-analog conversion, clamping, calibration and the like, and an external analog switch circuit is matched to realize single-board multi-channel test, so that the reliability of chip test is improved, and the test efficiency is improved. And the board occupation area is reduced.

The utility model provides nixie tube automatic assembling equipment which comprises a machine base, and a machine base platform is provided with the following devices: an offcut removing device used for cutting offcuts of a PCB yoke plate; the first breaking device is used for breaking the PCB yoke plate into PCB battens; the second breaking device is used for breaking the PCB strip plate into the PCB single plates; the cleading device is used for assembling the PCB single board into the nixie tube shell; the testing device is used for electrical detection of the PCB single board; and the hot-pressing device is used for hot-pressing connection of the PCB single board and the nixie tube shell. The nixie tube automatic assembly equipment provided by the utility model realizes the trimming of a PCB yoke plate, the breaking of the PCB yoke plate into strip plates and single plates, the automatic detection of the PCB yoke plate, the casing of the PCB single plates and the hot-pressing connection of the PCB single plates, the equipment operation stability is good, the assembly work efficiency is high, and the production cost is reduced.

The invention discloses a fault repairing method of a server single board and electronic equipment, and relates to the field of server hardware reliability, and the method comprises the steps: scanning a plurality of target signal links of the server single board through a time domain reflectometer, correspondingly comparing the new impedance value and the new reflection waveform characteristic in the scanning result with the initial impedance value and the initial reflection waveform characteristic, determining at least one fault link of the server single board when the comparison result is inconsistent, and performing multi-modal analysis by combining the operation state data of the server single board. And determining the fault level of at least one fault link in the server single board and correspondingly generating a fault repair strategy to switch the fault link to the standby link, thereby solving the problems of single detection dimension, complex fault monitoring blind area, high-frequency signal monitoring failure and the like in the related technology, and improving the detection accuracy. Through time domain reflectometer monitoring, multi-modal data fusion analysis and redundancy switching, fault prediction, accurate positioning and lossless self-repairing of a server single board target signal link are realized.

The invention discloses a dual-power management system and method and a nonvolatile storage medium. The system comprises a voltage detection module, a logic control module, an anti-reverse circuit module, a system power supply and a battery pack module, and the system power supply is used for supplying power to a hardware single board; the voltage detection module is used for performing voltage detection on the system power supply to obtain a voltage detection result; the logic control module is used for determining a power supply mode of the battery pack module; switching a power supply of the hardware single board from the system power supply to a battery pack connected in a battery pack module under the condition of determining that the system power supply is in a power-down state based on the voltage detection result, and supplying power to the hardware single board in a power supply mode corresponding to the battery pack; and the anti-reverse circuit module is used for preventing the power supply from flowing backward in the power supply switching process of the system power supply and the battery pack module. According to the method and the device, the technical problems that power supply switching is not timely and backward flowing occurs in a dual-power-supply scene in the prior art are solved.

The invention discloses a micro / nano satellite on-board computer dual-computer hot standby fault-tolerant system and a task synchronization method, two same processors are adopted on a single board to serve as a main processor and a standby processor, the processors are LCSoC3233 based on SPARC V8, the processor of the main computer serves as a main on-board processor to carry out on-board object control and data processing, and the processor of the standby computer serves as a main on-board processor to carry out on-board data processing. The processor of the standby machine is also used as a main satellite-borne processor to perform satellite-borne object control and data processing, meanwhile, data output is shielded, the processor of the standby machine is only used as a backup to improve the reliability of the satellite-borne processor, when the host fails, main and standby switching can be performed, and double machines perform data interaction through serial port communication, so that the state of dual-machine task synchronization is achieved; therefore, the on-satellite task process is not influenced during the main / standby switching. The function of maintaining the satellite-borne reliability is achieved through processor-level redundancy, and the problem that a current satellite-borne computing machine generates many faults when encountering the single event effect is solved.

The invention discloses a single-board ski shoe fixer with a power supply system, and belongs to the field of skiing sports equipment. Most existing single-board ski shoe fixers are of mechanical structures, lack electronic functions, cannot supply power and are insufficient in protection performance. The ski shoe fixer comprises a ski shoe fixer body, a control circuit board, a battery, a brass elastic sheet contact, a capacitance touch switch, a charging interface module, a silica gel sealing plug and the like. A GPS positioning module, a Bluetooth communication module and a sound-light alarm device are integrated on the control circuit board, speed and track data can be obtained in real time and transmitted to a terminal through power supply of a battery, and positioning and alarming are achieved when a user is in danger or the snowboard is lost; the battery supplies power to the snowboard electronic device through the brass elastic sheet contact, so that equipment dispersion is reduced, and charging is simplified; the capacitive touch switch, the resin pouring sealant and other protective structures effectively prevent water and mistaken touch, it is ensured that an electronic system reliably operates in the low-temperature humid environment, and the safety, convenience and stability of skiing are remarkably improved.

The invention provides a calibration system and method for impedance detection and a matching circuit, and belongs to the technical field of medical beauty equipment, and the calibration system comprises an integrated calibration system and at least one to-be-calibrated single board. The single board to be calibrated is integrated with an impedance detection circuit and an impedance matching circuit, and the impedance matching circuit comprises a dynamic impedance matching network formed by an adjustable capacitor and / or an adjustable inductor array; the integrated calibration system sequentially transmits radio frequency signals of a plurality of preset calibration frequencies to the to-be-calibrated single board, obtains impedance detection parameters fed back by the calibrated impedance detection circuit, generates matching parameter adjustment instructions corresponding to the calibration frequencies according to the impedance detection parameters, and sends the matching parameter adjustment instructions to the to-be-matched target circuit; and the to-be-matched target circuit adjusts the adjustable capacitor and / or the adjustable inductor array based on the matching parameter adjustment instruction. And the impedance matching circuit adjusts the adjustable capacitor and / or the adjustable inductor array based on a matching parameter adjustment instruction sent by the integrated calibration system to meet the multi-band radio frequency parameter calibration requirement.

The application discloses a kind of electric energy meter single board defect detection method and system based on multimodal data fusion, it is related to electric energy meter intelligent quality detection technical field, including synchronous acquisition electric energy meter single board image and carry out fusion pretreatment, obtain fusion image data;Defect detection model is constructed, and defect detection model is trained;Real-time inference is carried out to fusion image data using trained defect detection model, generates defect detection result and evaluates defect detection result confidence degree.The electric energy meter single board defect detection method based on multimodal data fusion provided in the application realizes the synchronous acquisition of electric energy meter single board multimodal information and feature enhancement, provides high-quality input data for subsequent detection model, realizes the deep feature modeling of multiple defects and the optimization of recognition ability, realizes the whole process inference mechanism of defect space positioning, type classification and reliability grading, finally reaches defect annotation accurate, convenient automatic sorting and quality closed-loop control.

The invention relates to the technical field of transmission and access networks, and provides an energy-saving method and device for an optical access network. The method comprises the following steps: acquiring total flow information between a first device and at least one second device; based on the total flow information and a corresponding threshold value, executing a channel selection operation between the first device and each second device; wherein the channel selection operation comprises any one of the following items: selecting a high-speed channel to transmit data, and starting a sleep function of a low-speed channel; and selecting a low-speed channel to transmit data, and starting a sleep function of a high-speed channel. According to the optical access network energy saving method and device provided by the invention, the limitation that local side OLT equipment can only close resources in a complete idle state of a single board, a port, a channel or an exchange link in the prior art is solved, and the channel resources which are being used can be dynamically adjusted according to the real-time flow condition, so that finer and more efficient energy consumption control is realized.

The invention discloses a temperature sensor fault processing method, a program product and an electronic device, the method is applied to a server, the server comprises a bus change-over switch, a single board management controller, a plurality of temperature sensors and a plurality of cooling fans, and the method comprises the following steps: at a target position in the server, the single board management controller is connected with the multiple temperature sensors; acquiring temperature information corresponding to the plurality of temperature sensors at the target position, and determining whether each temperature sensor fails or not based on the plurality of temperature information; under the condition that it is determined that the temperature sensor breaks down, backup information of the temperature sensor is obtained, and a mapping relation when the temperature sensor regulates and controls the rotating speed of the cooling fan is obtained; determining the influence level of the temperature sensor on the server based on the backup information and the mapping relation; and adjusting the access period of the single board management controller for accessing the temperature sensor based on the influence level. According to the method, the operation efficiency of the single-board management controller can be improved, and the sensitivity of fan speed regulation to the temperature sensor can be improved.

The invention provides a method and a device for identifying defects of a single board and a computer readable storage medium. The method comprises the following steps: synchronously acquiring RGB, NIR and UV three-waveband images of the single board through a preset multispectral imaging system; performing sub-pixel-level alignment on the three-waveband image by adopting an affine transformation-optical flow method combined registration algorithm; generating an enhanced image based on self-adaptive weighted fusion of an improved Retinex theory; the enhanced image is input into a preset light-weight dual-Transform network to be processed, and the light-weight dual-Transform network is used for processing the enhanced image; and outputting defect types and position information, wherein the defect types comprise movable joints, dead joints, cracks and resin bags. The technical problems that a traditional method is low in detection precision and poor in real-time performance under the complex texture background are effectively solved, and the method has the advantages of being high in detection precision, excellent in operation efficiency and suitable for industrial scene requirements.

The present application relates to the field of communication technology, and discloses a non-detachable elastic component, a heat dissipation device, an electronic device, a circuit module and an assembly method thereof. Among them, after the connection component and the fastening component in the non-detachable elastic component are installed, the nail body, the elastic element and the anti-detachment component in the connection component can form an anti-detachment spacing for preventing the second component from detaching from the first component. Secondly, the nail body and the fastening component in the connection component can also form a fixed spacing for fixing the second component to the third component. Finally, the nail body, the elastic element and the fastening component in the connection component can also form an elastic spacing for elastically combining the first component to the second component, that is, elastically combining the first component to the third component. While realizing the above three functions, the non-detachable elastic component minimizes the number of holes on the circuit board for installing the above-mentioned connector, improves the effective utilization rate of the board surface, and enhances the flexibility of high-density single board layout.

Apparatuses, systems, and methods for dual processor single board computers are provided. For example, a dual processor single board computer may include a management processor with associated memory, an application co-processor with associated memory, and a plurality of bus switches. The dual processor single board computer may be used in devices that may be exposed to radiation, such as satellites. During a radiation event, the management processor may continue operation and isolate the application co-processor and certain memories to cease operation to increase the amount of radiation safely received before damage. After the radiation event, the management processor may reboot the application co-processor, and update applications to allow a device to continue its mission.

The embodiment of the invention discloses a solid state disk test method and device, electronic equipment and a storage medium, and relates to the technical field of solid state disk test.The method comprises the steps that a single-board computer serves as a core component, and is externally connected with refrigeration equipment, heating equipment and a transparent box body to be assembled to obtain a test box, a temperature sensor is arranged in the test box to monitor the internal temperature in real time, and heat adjustment data is calculated according to the internal temperature, the actual heating value, the current environment temperature and the set standard temperature; adjusting the output power of the refrigeration equipment or the heating equipment through an electronic control valve according to the heat adjustment data until the internal temperature is adjusted to the standard temperature; continuously monitoring the test box, performing feedback adjustment according to the temperature adjustment condition of the test box, and immediately cutting off the power supply of the test box when the temperature of the test box exceeds a set safety range. The problems that in the prior art, the testing period is long, the testing efficiency is low, and an actual use scene cannot be accurately simulated are solved.

The utility model discloses hot-pressing equipment for core-board processing, which comprises a support plate, the bottom of the support plate is fixedly connected with a plurality of support legs, the top of the support plate is fixedly connected with a support seat, the top of the support seat is fixedly connected with a hot-pressing table, and the hot-pressing table is fixedly connected with a base. A pair of first sliding grooves and a pair of second sliding grooves are formed in the surface of the hot-pressing table, a first positioning mechanism and a second positioning mechanism are arranged on the left side, the right side, the front side and the rear side of the hot-pressing table respectively, a fixing frame is fixedly connected to the top of the supporting plate, and a hot-pressing mechanism is arranged on the fixing frame. According to the utility model, the middle-layer veneer and the surface-layer veneer can be ensured to be accurately aligned and not misplaced in the stacking process, the phenomenon that the hot-pressing plate cannot be kept horizontal in the hot-pressing process due to the fact that pressing force is concentrated at one point can be avoided, and the surface temperature of the hot-pressing plate can be uniformly distributed; and it is ensured that heat can be sufficiently and evenly transmitted to the plate through the hot pressing plate during hot pressing.

The invention discloses a cascading multi-string lithium battery centralized maintenance and management device and a cascading multi-string lithium battery centralized maintenance and management method. The method comprises the following steps: during power-on, detecting an electrical sequence of each maintenance management single board in a cascade link, and distributing a unique board position identity identifier for each maintenance management single board; determining the first maintenance management single board in the cascade link as a master control single board and the other maintenance management single boards as slave control single boards based on the board position identification; obtaining a maintenance mode instruction, and cooperating with each slave control single board to maintain the accessed battery pack; and when any maintenance channel detects that the battery pack is connected, automatically controlling a charging loop or a discharging loop of the channel where the battery pack is located according to the maintenance mode instruction so as to adjust the electric quantity of the battery pack to a preset target electric quantity range. The technical problems of low manual maintenance efficiency, high cost and poor consistency of the lithium battery pack in the prior art are solved, automatic, large-scale and standardized maintenance of a large number of battery packs is realized, and the service life of the battery is prolonged.