407 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 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 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 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 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.

The utility model discloses an expansion power supply to adapt to a multipath BDU voltage sampling circuit, comprising a flyback unit used for obtaining an alternating current, converting the alternating current into a direct current power supply and outputting the direct current power supply; the voltage adjusting unit is used for filtering and stabilizing the output direct-current voltage and then outputting a direct-current power supply; and the DCDC power supply unit is used for obtaining an output DC power supply for power supply. According to the expansion power supply, the area of a single PCB (Printed Circuit Board) and the volume of a transformer are effectively reduced by adapting to a multi-path BDU voltage sampling circuit, meanwhile, the use amount of devices is reduced, and the problem that multi-path negative sampling needs a plurality of non-common-ground power supplies is solved in a low-cost manner.

The invention discloses a circuit board for industrial control. The circuit board comprises an MCU module, a power supply module, a serial port module, a driving circuit, a relay module, an input signal detection module, a switching value and AD detection module and a driving module for a stepping motor. According to the circuit board for industrial control provided by the embodiment of the invention, a single board heterogeneous integration and software and hardware collaborative optimization technology is adopted, and dual optimization of cost and integration is realized. According to the circuit board, a plurality of functional modules are integrated into a single board card, the area of the circuit board is effectively reduced, parallel calling of multiple modules is supported, and the number of components and installation working hours are greatly reduced. One circuit board can meet diversified function requirements, and the three problems that a traditional industrial control system is low in integration level, poor in real-time performance and insufficient in flexibility are successfully solved.

The utility model provides a power supply controller assembling device, which comprises a PCB (printed circuit board) feeding mechanism and a power supply controller assembling mechanism which are sequentially distributed, the PCB feeding mechanism comprises a half board processing assembly and a single board processing assembly, the half board processing assembly is used for processing a whole PCB into a PCB half board, and the single board processing assembly is used for processing the PCB half board into a PCB single board; the first assembling mechanism comprises a first conveying line and a first mechanical arm; the second assembling mechanism comprises a second conveying line and a second mechanical arm; and the control mechanism comprises a controller and a plurality of sensors, the controller is electrically connected with the PCB feeding mechanism, the first assembling mechanism, the second assembling mechanism and the plurality of sensors, and the control mechanism is used for controlling operation of the PCB feeding mechanism, the first assembling mechanism and the second assembling mechanism. According to the technical scheme provided by the utility model, the problem of low assembly efficiency of the LED power supply controller in the prior art can be solved.

The utility model provides a PCB jointed board capable of improving dielectric thickness and warping performance of symmetrical layers. The PCB jointed board comprises a front surface and a back surface; the front surface of the PCB jointed board comprises one or more front surface units and one or more back surface units; wherein the front surface unit comprises a plurality of single PCBs with upward front surfaces, and the back surface unit comprises a plurality of single PCBs with upward back surfaces; the front surface units and the back surface units are sequentially and alternately arranged along the length direction of the PCB jointed board; the front surface of the PCB jointed board and the back surface of the PCB jointed board are correspondingly arranged; wherein the front surface of the PCB jointed board is the front surface unit, and the corresponding position of the back surface of the PCB jointed board is the back surface unit.

The application relates to a dual-machine hot backup satellite-borne cryptographic device, a master-slave switching method, a satellite and a communication system, wherein the dual-machine hot backup satellite-borne cryptographic device adopts a single-board dual-machine hot backup hardware architecture; the device comprises a cryptographic module A and a cryptographic module B which are mutually master-slave, and a RAM chip which is shared memory of the cryptographic module A and the cryptographic module B; two one-way signal lines are connected between the cryptographic module A and the cryptographic module B, one of the two one-way signal lines transmits master-slave signals of the cryptographic module A from the cryptographic module A to the cryptographic module B, and the other one-way signal line transmits master-slave signals of the cryptographic module B from the cryptographic module B to the cryptographic module A, and the master-slave signals are used for autonomous switching of the dual-machine hot backup; and the RAM chip is used for storing state information required for master-slave switching. The application improves the reliability of satellite load service cryptographic processing.

The invention provides a main and standby single board state switching method, communication equipment and single boards, and the method comprises the steps: locking a main single board on the communication equipment to be in a main state or locking an old standby single board to be in a standby state before the old standby single board on the communication equipment is replaced, and locking the old standby single board to be in a standby state after the old standby single board is replaced by a new standby single board. If the master single board receives a master raising request sent by the new standby single board, the master single board is forbidden to be switched to the standby state and the new standby single board is forbidden to be switched to the master state based on the locking state of the master single board or the locking state of the old standby single board, and the master raising request is used for requesting to be switched to the master state. Through the method, the problem that when the old standby single board in the communication equipment is replaced, if the new standby single board is in poor contact with the back board of the communication equipment, the reset service of the whole communication equipment is instantaneously interrupted, and the user experience is seriously influenced can be solved.

Embodiments of the present application provide a single board and a network device, and relate to the technical field of communication. A logic device in the single board can timely and accurately determine whether a signal processing chip in the single board is faulty. The single board comprises: a logic device and a signal processing chip; an output port of the signal processing chip is connected with a detection port of the logic device through a transmission line; the signal processing chip is configured to output a target signal through the output port, the target signal being used to indicate a working state of the signal processing chip; and the logic device is configured to receive the target signal through the detection port and determine whether the signal processing chip is faulty according to the target signal.

1. The name of the design product: equipment cabinet (open source hardware and mini mainframe use). 2. The use of the design product: cabinet device for installing, fixing and storing single board computer, small computer and network equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: reference figure 2 in use.

The utility model provides a heat dissipation structure for heat dissipation of a test board and a test machine, and relates to the technical field of semiconductor testing, the heat dissipation structure provided by the utility model comprises a first water cooling plate, a second water cooling plate and a plurality of single plates which are arranged in a laminated manner, any single plate is connected with at least one other single plate through a connecting assembly, and the first water cooling plate is connected with the second water cooling plate. At least one single plate is arranged between the first water-cooling plate and the second water-cooling plate, and the first water-cooling plate and the second water-cooling plate make contact with the adjacent single plates. The heat dissipation structure for heat dissipation of the test board provided by the utility model can ensure the stability of the multi-layer single board structure under the condition of meeting the heat dissipation requirement of the multi-layer single board.

Embodiments of the present application provide a network device and a network system, and relate to the technical field of communication. The network device comprises a frame, the frame comprising a backboard; at least two groups of dual groups, any group of dual groups comprising a first service single board and a second service single board, the first service single board and the second service single board being installed on the frame; the first service single board and the second service single board being connected through the backboard, the first service single board being used for outputting service signals to the second service single board. It can be seen that the network device is a network device of two-level switching structure, and by omitting the cross board, the purpose of reducing the time delay can be achieved. In the network device, at least two service single boards in any group of dual groups are connected with each other, and any service single board in the dual group is not connected with the service single boards in other dual groups, so that the signal transmission in the dual group does not affect the signal transmission in other dual groups, and the service single boards in different dual groups are isolated from faults.

The application relates to the technical field of welding, and provides a welding method and a welding device for a circuit board assembly. The welding method comprises the following steps: placing a first circuit board on a supporting tool, wherein the first circuit board comprises two or more first welding areas; stacking a second circuit board on the first circuit board, wherein the second circuit board comprises two or more second welding areas; arranging a pressing plate assembly on the second circuit board to weld the two or more first welding areas and the two or more second welding areas; wherein at least one of the first circuit board and the second circuit board is a circuit board spliced board, the circuit board spliced board comprises a splicing structure and N circuit board single boards spliced with each other; and the splicing structure connected with the circuit board single boards is cut to form a circuit board assembly containing the circuit board single boards. The welding method can realize welding of one circuit board and multiple circuit boards or welding of multiple circuit boards and multiple circuit boards, and the welding efficiency is improved.