248 results about "Monoboard" patented technology

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 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 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.

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.

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 provides a router online upgrading system based on credibility measurement, which is composed of a network management device and a plurality of routers, the network management device is used for providing a required credible software package and remote issuing instruction of the router, and is internally provided with a credible module; each router comprises a main control board and a plurality of single boards, and is provided with an independent credible module and a storage device, the main control board is provided with a device software management module, downloads the credible software package and performs software package verification; the software upgrading instruction is issued to each single board, and upgrading results of the single boards are collected and reported; each single board is provided with a single board software management module, and credible software updating and activation of the single board are realized; the credible module is used for credible calculation and verification; and the storage device is divided into two partitions, a main area in which current software runs and a standby area. The application guarantees high safety and high reliability requirements of online upgrading of the whole network router, and is suitable for evolution and maintenance demand scene of an endogenous security communication network.

The utility model relates to a board splitting jig for a PCB (Printed Circuit Board), which comprises a base, a mounting groove is arranged on the base, an avoiding opening is arranged in the middle of the mounting groove, a carrier plate is connected in the mounting groove, a substrate limiting groove is arranged on the carrier plate, a plurality of positioning holes and a plurality of single board positioning bosses are arranged in the substrate limiting groove, and the single board positioning bosses are arranged in the positioning holes. A plurality of positioning holes are formed in the upper end face of the base, the positioning holes are used for carrying out plate separation operation on workpieces, a jacking tray is connected into the base plate limiting groove, the jacking tray is connected with a jacking mechanism, a plurality of positioning holes and a plurality of avoiding holes are formed in the jacking tray, and a cover plate used for pressing the carrying plate is connected to the upper end face of the base in a turnover mode. The base is provided with a quick clamp used for pressing the cover plate, and the lower end face of the cover plate is connected with foam. A plurality of corresponding positioning holes are formed in the carrier plate and the jacking tray, so that the plate separation effect is ensured; the veneer positioning boss and the cover plate are matched to position veneers, and the veneers are prevented from being stressed and misplaced in the board splitting process.

The utility model discloses aluminum veneer color printing equipment which aims at solving the problems that in the prior art, power sources in at least two directions need to be provided for achieving positioning, so that positioning is complex, and cost is high. According to the technical scheme, the aluminum veneer color printing equipment is characterized in that the aluminum veneer color printing equipment comprises a workbench, a first long edge positioning plate and a first short edge positioning plate which are vertically distributed are fixedly connected to the workbench, and a second long edge positioning plate and a second short edge positioning plate are slidably connected to the workbench. According to the aluminum veneer color printing equipment, through the ingenious matching design of the driving groove and the driving column, when the first driving rod and the driving rod move, the first sliding block and the second sliding block which are vertically distributed can be driven to slide synchronously, then the four faces of an aluminum veneer are gradually abutted tightly, accurate and rapid positioning is achieved, and the production efficiency is improved. And the positioning process can be realized by only one power source, so that the equipment cost is reduced.

The application discloses a kind of recombination board continuous production line and production method, belong to recombination board manufacturing technical field.Recombination board continuous production line adopts L shape design, including feeding device, for placing veneer and feeding to defibration device;Along the horizontal direction of feeding device, defibration device for veneer is sequentially arranged, impregnation device for fibrosis product is impregnated, and discharge device for impregnated product is discharged excess glue liquid;Along the vertical direction of conveying device, drying device, whole veneer equipment, cutting device and forming device are sequentially arranged.The defibration device and impregnation device are connected by conveying device between discharge device and drying device.This application constitutes a continuous, automated production process, and the integrated design ensures the quality stability of recombination board, improves production efficiency.

The utility model relates to the technical field of multi-wire cutting machines, in particular to a single-plate multi-wire cutting device capable of quickly changing wires, which comprises a machine body, a mounting block is fixedly connected in the machine body, a rotating block is rotatably connected in the mounting block, a mounting groove is formed in the rotating block, a supporting rod is slidably connected in the mounting groove, and a plurality of clamping grooves are formed in the supporting rod. The supporting rod is sleeved with a bobbin, two storage grooves are formed in the front end of the supporting rod, a check block is hinged to the interior of each storage groove, and each check block is attached to one side of the corresponding bobbin; the bobbin is arranged outside the supporting rod in a sleeving mode, the bobbin is limited on the machine body through the check block so that the bobbin can be conveniently assembled and disassembled, the length of the supporting rod is adjusted through the clamping block, the check block can adapt to limiting use of bobbins of different sizes, and therefore the use flexibility is good, and the use economical efficiency is high.

The application relates to the technical field of tire pressure monitoring, in particular to an airborne tire pressure monitoring device and a monitoring method. In the scheme, the airborne tire pressure monitoring device is installed on the outside of the valve of an airplane tire, a reading device is used to superimpose a reading instruction on an alternating current, the reading device transmits the reading instruction and the alternating current to the airborne tire pressure monitoring device through a single-coil wireless transmission mode, and when collecting airplane tire pressure data and tire temperature data, multi-channel collection is realized. The reading device is provided with multiple channel signal measurement sensing processing units for collection, effectively overcoming the problems that the equipment is too large to be installed in the tire and the single-board card has a risk of tire pressure measurement failure, and increasing the reliability and the accuracy of data, facilitating equipment maintenance and replacement.

The utility model relates to the technical field of welding rod machining, discloses a cutting device for welding rod machining, and solves the problems that an existing welding rod cutting device is inaccurate in positioning, poor in positioning adaptability to welding rods with different diameters and inconvenient in deslagging. The device comprises an operation platform, portal frames are arranged on the two sides of the top end of the platform, welding rod positioning assemblies are arranged on the two sides of the portal frames, single-plate K-type and double-plate K-type welding rod positioning clamps are driven by screws with opposite rotating directions to slide in inverted-T-shaped grooves, the device is suitable for positioning of welding rods with different diameters, and the problem that an existing device is poor in welding rod positioning and cutting effect is solved. A through groove and a containing groove are formed in the operation platform, and the through groove is matched with a detachable slag discharging hopper so that waste slag can be cleaned conveniently. The driving motor in the containing groove drives the lead screw to rotate, the connecting frame moves up and down, and the guide column guarantees the stability. According to the laser cutting unit on the connecting frame, a stepping motor drives a belt wheel and a chain belt to drive a laser tool bit to conduct sliding cutting, and the cutting efficiency and precision are effectively improved.

The utility model discloses an anti-electromagnetic interference amplifier single board debugging and positioning platform, which comprises a workbench, and a positioning structure is arranged on the workbench. A groove is formed in the workbench; the positioning structure comprises a fixed block A, a fixed block B, a positive and negative tooth screw rod, a rotating handle, a movable block and an L-shaped block; the fixed block A is fixedly arranged at one end of the groove; the fixed block B is fixedly arranged at the other end of the groove; the positive and negative tooth screw rod is arranged in the groove; one end of the positive and negative tooth screw rod is rotationally connected with the fixed block A through a rotating shaft, and the other end of the positive and negative tooth screw rod penetrates through a hole in the fixed block B; the rotating handle is fixedly arranged at the other end of the positive and negative tooth screw rod; the two movable blocks are arranged on the two threaded sections of the positive and negative thread screw in a threaded and sleeving mode correspondingly. The movable block is in sliding fit with the groove; the transverse sections of the two L-shaped blocks are fixedly arranged on the two movable blocks respectively. The device has the advantages that the distance between the longitudinal sections of the two L-shaped blocks is adjusted according to the size of the amplifier single board, and the device is suitable for placing single boards with different sizes.

The application discloses a kind of based on branch current's latch detection method, device and latch protection circuit.The method includes obtaining the branch current from a protection branch;Branch current is converted into time-frequency domain signal;Time-frequency domain signal is structured as gray scale image;Extract the texture feature of gray scale image, whether the corresponding branch occurs latch and micro-latch is judged using pre-trained machine learning model.The method of this embodiment, directly for branch current detection, detection point quantity is exponentially decreased, improve the utilization of PCB board, also reduce the single board power consumption.In addition, the branch current of the application is structured as gray scale image, extracts the current texture feature in image, and is judged by pre-set machine learning model, the accuracy of identifying latch and micro-latch is high, supports the detection of various types of devices, so as to effectively protect the single board circuit in orbit operation, prevent it from being damaged due to latch or micro-latch.

According to the multifunctional hot backup underwater robot guarding equipment and method, a double-board-card parallel hot backup working mode with the same hardware structure is adopted, special handshake communication and fault monitoring switching logic are combined, it is ensured that when any single board fails, the guarding function can be seamlessly replaced by the other board card in the second level, and the safety of a guarding system is guaranteed. And meanwhile, the water leakage detection function, the external communication monitoring function, the multi-path driving output function and the like are integrated. According to the device and the method, the reliability of an underwater unattended task can be effectively improved, and the equipment application field is expanded.

The invention relates to a cable housing (9) for at least one mini-PC (2), micro PC, nettop and / or single-board computer comprising at least one mounting plate (1) and at least one second component (22). It is proposed that the mounting plate (1) and the second component (22) form at least one cavity (11) in which at least one cable (7), at least one power supply (21) and / or small peripheral devices can be accommodated, and wherein the mounting plate (1) has at least one bracket and / or bore to which the at least one mini-PC (2), micro PC, nettop and / or single-board computer can be attached.

The invention relates to the technical field of high-density mixed channel boards, and particularly discloses a high-density mixed channel board for aging equipment, which comprises a direct current conversion unit, a logic control unit, a program processing unit, a mode generation unit, a time sequence control unit, an analog-to-digital conversion and multi-path selection unit, a clock module and a plurality of power supply modules, and the direct current conversion unit provides working voltage for each module. The logic control unit, the program processing unit, the mode generation unit and the time sequence control unit communicate with one another, the clock module provides clock signals for all the units, and the multiple power supply modules are connected with a tested storage chip; 768 digital channels and 56 power supply channels are integrated on the single board, and different types of power supplies are covered; the mode generation unit dynamically adjusts the voltage of the time sequence control unit through a communication interface and a special chip, a traditional driving chip and a relay array are replaced, the pin electronic driving function is achieved, the area of a circuit board is reduced, and the system cost is reduced.

Described are methods and systems for single-board satellite architectures.

The utility model provides a single-board miniature multichannel model airplane receiver, belongs to the field of miniature model airplane receivers, and aims to solve the problems of miniaturization and multiple expansion functions of the receiver. The receiver is characterized by comprising a power supply voltage stabilizer, a burning plug, an indicating lamp, a radio module, a circuit control chip, a 12-channel steering engine PWM signal plug, an acceleration sensor, a low-noise amplifier, a low-pass filter and an independent crystal oscillator, the voltage stabilizing chip, the circuit control chip, the acceleration sensor, the burning socket, the LED indicating lamp, the antenna plug and the radio module are arranged on a circuit board; the model airplane receiver has the advantages that the problems that an independent acceleration sensor and an information synthesis circuit are arranged outside a radio module of a model airplane receiver in the prior art, so that circuit miniaturization is not facilitated, and signal transmission delay depending on a steering engine is large are solved.

The invention relates to a power supply multi-point heat management method and device, computer equipment and a storage medium, and the power supply multi-point heat management method is based on distributed sensing and hierarchical control, and achieves temperature collection through a temperature sensing array; temperature-power dual-mode control is adopted, when single-board-level self-adaptive cooling is executed, controlled quantity is generated through a segmented PWM algorithm based on temperature data, and energy efficiency optimization is achieved based on temperature reference in a small-current mode through a mode self-adaptive mechanism; and on the regional collaboration level, an average value is calculated or a fixed rotating speed control strategy is set through FRM parameter configuration selection, and the operation state of the battery cell plate fan is converted into a control instruction of a regional large fan, so that the collaborative heat dissipation effect that a small fan guides a large wind direction is formed. According to the invention, through a closed-loop control framework, the 18 battery cell plates are kept at a stable working temperature of 30-40 DEG C in an environment temperature of 15-35 DEG C, so that the problem of overheating of the battery cell plates is effectively solved, the reliability of the system is improved, and the energy consumption is reduced.

The application discloses a PCB splitting method, and relates to the technical field of PCB splitting. The method comprises the following steps: placing a PCB plate in a lower plate provided with a positioning piece; wherein the lower plate comprises a first lower plate and a second lower plate, the first lower plate and the second lower plate are connected through a hinge piece, and the positioning piece is used for positioning the PCB plate, so that a pre-cutting line of the PCB plate coincides with an axis of the hinge piece; pressing the PCB plate on the first lower plate and the second lower plate through a first cover plate and a second cover plate; wherein the first cover plate corresponds to the first lower plate, and the second cover plate corresponds to the second lower plate; folding the first lower plate and the second lower plate along the direction of the PCB plate, so as to split the PCB plate into at least two PCB single plates. Through the technical scheme, the application can reduce the damage of the folding force to the PCB plate, thereby improving the quality of the split PCB single plate.

This invention discloses an automated industrial control system for the copper embedding process of printed circuit boards (PCBs), relating to the field of PCB manufacturing technology. Based on PCB design files, the system divides the layout into multiple functional areas and constructs a set of board-level physical characteristic parameters, including wiring density, to generate an initial target current density distribution map. The system monitors the total current of each board and the copper ion concentration in the electroplating solution in real time. Combining physical characteristics, it dynamically predicts the current density deviation risk of each functional area. When the risk exceeds a preset threshold, a closed-loop correction control unit generates a current correction factor and allocates it to the corresponding anode area to correct the output current, thereby achieving dynamic and precise control of the current density of each functional area. This invention, through a combination of forward-looking risk prediction and closed-loop correction, significantly improves plating uniformity, product consistency, and yield, achieving full-process automation and improving production efficiency and stability.

This utility model relates to the field of connector technology, and in particular to a backplane connector shielding sheet for improving connector crosstalk performance. It includes a single board and a backplane. One end of the single board has an integrally formed connecting end, and the single board is connected to the backplane through the connecting end. One side of the connecting end has an integrally formed plurality of protrusions, and another side of the connecting end has an integrally formed plurality of fisheye mechanisms. This utility model, by setting the connecting end on the single board, providing a protrusion on one side of the connecting end, and a slot in the middle of one side of the protrusion, and simultaneously providing first fisheyes on both sides of the connecting end, and a straight second fisheye between adjacent protrusions, and providing insertion holes on the backplane that mate with the protrusions, with a locking block mates with the slot and mounting holes mate with the fisheye mechanisms, effectively ensures contact reliability by preventing interference contact between the protrusions, the slot, the insertion holes, and the locking block. This results in a shorter return path, lower mutual inductance between differential pairs, and superior anti-crosstalk performance.

The invention relates to a module identifier acquisition system and method. The system comprises an address single board, a module and a master controller. The module is connected with the address single board in a pluggable mode. The address single board comprises an address signal generating unit; the module comprises an excitation generation unit and an address processing unit. When the module is inserted into an address single board, the excitation generation unit provides a first path of voltage excitation signals and a second path of voltage excitation signals for the address single board. The address signal generation unit generates a first feedback voltage signal representing the address of the slot where the module is inserted based on the first voltage excitation signal, and generates a second feedback voltage signal representing the set address of the address single board based on the second voltage excitation signal. And the address processing unit determines an identity label comprising a slot address and a group address of the module based on the two feedback voltage signals, and sends the identity label to the main controller. And the master controller establishes communication connection with the corresponding module based on the identity label. According to the invention, the identity label of the newly inserted module can be dynamically obtained in real time and reported to the master controller.

The invention discloses a heat dissipation air channel detection method and device of a photovoltaic inverter, a storage medium and a terminal, and the method comprises the following steps: obtaining a healthy temperature curve and an actual operation temperature curve of a plurality of temperature collection points of the photovoltaic inverter, the plurality of temperature acquisition points at least comprise a radiator air inlet, a radiator air outlet, each power module and an inverter internal single board; calculating a difference value between the actual operation temperature curve and the health temperature curve of the plurality of temperature acquisition points, and obtaining a difference value comparison result in combination with a corresponding preset air duct health degree threshold range; and calculating an air duct health degree index according to the difference comparison result and a corresponding preset weight, and obtaining an air duct detection result. According to the method, the limitation of single temperature detection is avoided, the influence difference of different temperature factors is reflected through weight distribution, and the real health state of the heat dissipation air duct of the inverter can be reflected more comprehensively and accurately.

The utility model discloses a modularization cluster equipment based on single board computer, including cabinet, blade rack, display module, cabinet whole is the vertical cabinet of cuboid, four lateral surfaces of cabinet are all hollow structure, blade rack is installed in the cabinet, and multiple horizontal partition plates are separated to form multiple blade positions in the blade rack, every blade position can be configured with a blade board, and the blade board is configured in the blade position or is pulled out from the blade position through the mode of plugging and unplugging, display module is installed in the top middle part of cabinet, and display module can be connected with multiple blade boards through connecting line. Through low -cost, simple and convenient and fast deployment mode and high degree modularization's design, provide ideal practice environment for student, adopt the design of blade type, realize compact, comprehensive integrated structure of function, enhance easy -to -use and flexibility, have expandability and stable durability, can be used as the powerful tool of cultivating the network engineering professional talent of adapting the demand of new era.