2930 results about "Electronic systems" patented technology

The invention discloses an online aging state monitoring method and system for a silicon carbide MOSFET, and belongs to the technical field of semiconductor device monitoring, and the method specifically comprises the steps: collecting the working voltage, working current and junction temperature data of the silicon carbide MOSFET in real time, analyzing and processing the data through a data processing unit, and extracting the aging state characteristic parameters of the MOSFET; a dynamic aging state evaluation model fusing multi-source data and time sequence information is adopted to evaluate the aging state of the silicon carbide MOSFET, and a result is output to a display unit; according to the method, the aging state of the silicon carbide MOSFET is monitored, multi-level alarm strategies are set, different levels of alarm signals are triggered according to the aging state, meanwhile, feedback data are collected to optimize the state evaluation model, real-time and accurate monitoring of the aging state of the silicon carbide MOSFET is achieved, and the reliability and stability of a power electronic system are improved.

The invention discloses a modular micro-nano satellite integrated power system suitable for batch production and an assembly method thereof. The integrated power system is composed of a semi-open type electric box structure and a modular circuit board. The electricity box structure comprises an electricity box upper cover and an electricity box lower cover, and a plurality of threaded holes are formed in the two sides of the electricity box upper cover and the two sides of the electricity box lower cover and used for being connected with a satellite structure cabin plate; the heat dissipation plate bodies are distributed on the two sides of the modular circuit board; the modularized circuit board is provided with a plurality of circuit boards which are respectively provided with electronic modules in a stacking arrangement. A plurality of electronic modules are integrated into an electronic system by adopting a mechanical-electrical-thermal integrated design method, the system breaks through the function limit of a traditional satellite subsystem, the defects of information exclusion and resource waste are eliminated, a satellite is used as a whole to be subjected to unified design and resource planning tradeoff from the system level, and the system performance is improved. The weight of cables and connectors between electronic modules is greatly reduced, and the effective load ratio is improved.

The present disclosure relates to a computer-implemented process for evaluating user activity, user preference, and / or user habit via one or more personal devices and providing precisely timed and situationally targeted content recommendations. It is an object of the present disclosure to provide a technological solution to the long felt need in small scale content recommendation systems caused by the technical problem of generating situationally targeted and user preference targeted content recommendations for users of an interactive electronic system.

A microelectronic device comprises a first microelectronic device structure and a second microelectronic device structure vertically overlying the first microelectronic device structure. The first microelectronic device structure comprises a first memory array region and a first control logic device region configured to effectuate control operations for memory cells of the first memory array region. The second microelectronic device structure comprises a second memory array region and a second control logic device region configured to effectuate control operations for memory cells of the second memory array region. Related memory devices, electronic systems, and methods are also described.

An electronic system for controlling vibrations and / or inertial forces occurring at a plurality of areas of interest within an operating vehicle. The electronic device comprises circuitry configured to receive input data comprising sensor data from one or more environment sensors and / or one or more internal sensors; convert, by means of a machine learning system, the input data into actuator settings; and transmit the actuator settings to one or more actuators to control vibrations and / or inertial forces occurring at each of the plurality of areas of interest within the vehicle.

The present disclosure relates to a computer-implemented process for generating and providing simulated user absorption information pertaining to users and based on target profiles and target situations, thereby providing user targeted and situationally targeted content recommendations. It is an object of the present disclosure to provide a technological solution to the long felt need in small scale content recommendation systems caused by the technical problem of generating situationally targeted and user profile targeted content recommendations for users of an interactive electronic system.

The invention belongs to the field of power electronic system simulation, and particularly discloses a power electronic system simulation method and system based on rigid self-switching, and the method comprises the steps: employing a rigid algorithm and a non-rigid algorithm for switching in a power electronic system simulation process, and the switching mode is that when the current algorithm is the non-rigid algorithm, when the step size change rate is detected to be-0.1-0.1, the step size change rate is detected to be-0.1-0.1, and the step size change rate is detected to be-0.1-0.1. When the algorithm is # imgabs0 #, switching to a rigid algorithm; the # imgabs1 # is the current integral step length, the # imgabs2 # is a self-adaptive threshold value, and the # imgabs3 # is the maximum integral step length; when the current algorithm is a rigid algorithm, switching to a non-rigid algorithm when it is detected that the step size change rate is smaller than-1 and # imgabs4 #; # imgabs5 # and # imgabs6 # are cost functions of a non-rigid algorithm and a rigid algorithm respectively, and are determined based on calculation time consumption of the algorithms. The method is oriented to a power electronic system, a cross-magnitude variable step size adaptive algorithm is realized, and compared with a single rigid or non-rigid algorithm, the method can provide a faster simulation resolving speed.

A configurable power monitoring system for electronic devices is described herein. In an example, a device can include a first circuit that can receive a first voltage signal from a voltage bus and output a second voltage signal that is lower than the first voltage signal. An electronic system can be coupled to the voltage bus. A second circuit can be coupled to the electronic system and can output a third voltage signal corresponding to current flow through the electronic system. An amplifier can amplify the third voltage signal to generate an amplified voltage signal. An accumulator can determine a power consumption value of the electronic system based on the second voltage signal and the amplified voltage signal. A data communication system can transmit the power consumption value to the electronic system and can receive configuration data usable to adjust an accuracy and / or a dynamic sensing range of the device.

The invention discloses a 3D packaged low parasitic inductance SiC power module, which comprises a substrate layer, a chip layer, a connecting layer, a middle layer and a decoupling capacitor, the chip layer is electrically connected with the substrate layer; the middle layer is located between the upper chip layer and the lower chip layer, and the upper connecting layer and the lower connecting layer are windowing type copper blocks, are externally connected with DC terminals and are used for connecting the upper substrate layer and the decoupling capacitor; and the decoupling capacitors are two groups of capacitors arranged beside the middle layer and are electrically connected with the upper connecting layer and the lower connecting layer. By adopting the copper material with high conductivity to be connected with the copper layers in the laminated layer and the substrate to form the middle layer, the inductance of the machine body is obviously reduced, the heat dissipation effect is improved, the machine body has obvious advantages in high-frequency, high-voltage and high-power applications, and the overall performance and reliability of a power electronic system can be effectively improved.

The invention discloses a fault-considered spacecraft integrated chip interface circuit potential path analysis method, a storage medium and equipment, and belongs to the technical field of integrated circuit design and fault analysis. The method aims at solving the problem that an analysis method for a path under a failure mechanism under different environmental stresses is lacked. The method comprises the following steps: constructing an interface circuit simulation model of an integrated device based on a common interface circuit and a potential path structure in a spacecraft electronic system, then supplementing degradation mechanisms in various task stress environments, and determining a fault mode table of the interface circuit of the integrated device; a circuit simulation method is adopted to carry out potential path analysis considering fault factors on an interface circuit under a typical task profile, a fault path response feature library of the interface circuit under the task profile is obtained, then a constraint clue table for interface circuit design is formed, an interface circuit failure associated fault tree model is constructed, and the interface circuit failure associated fault tree model is constructed. And calibrating a relation path between various potential paths and device degradation or local failure for failure positioning and path checking.

The invention relates to the technical field of electronic systems of spacecrafts, and discloses a fault-tolerant method for non-redundant fault reconstruction of a spaceborne computer, which comprises the following steps of: 1, accessing a hardware state manager by a BIOS (Basic Input / Output System) after the system is started; obtaining health state data recording the health state of the local storage device, a current starting target ID used for indicating a current starting target, and a retry count value associated with the current starting target ID; a BIOS (Basic Input Output System) accesses a hardware state manager to obtain health state data and a retry count value of local storage equipment, so that normal equipment is autonomously selected for starting, and the fault-tolerant effect of dynamically avoiding a fault starting path is achieved; compared with the technical scheme in the prior art that the computer starting process highly depends on a solidified single physical storage device, the single-point fault risk of permanent paralysis of the computing system caused by damage of the single storage device is solved.

An electronic system for an environmental sensor device is configured to continually collect environmental data (e.g., temperature data, humidity data, or the like). The environmental sensor device is configured to be transported within a container and collect environmental data throughout the shipment.

The invention provides an open type avionics system for a multipurpose unmanned aerial vehicle, and relates to an unmanned aerial vehicle electronic system, the system comprises a comprehensive processing module, a navigation module, a servo module, a power supply and distribution module and a load module, and the modules realize data interaction through an interconnection bus; a protocol conversion module with standardized interfaces is further arranged between the load module and the comprehensive processing module, and the protocol conversion module is used for converting various non-standardized load interfaces into unified and standardized interfaces so as to support effective communication and data exchange between the load module and the comprehensive processing module. Based on the design ideas of comprehensive modularization, bus interconnection and interface standardization, all functional modules of an existing unmanned aerial vehicle electronic system are designed in a centralized and integrated mode, and the multipurpose unmanned aerial vehicle electronic system with high integration and interface standardization is formed.

The invention discloses an aging performance evaluation method and platform for a super junction MOS device, and relates to the technical field of performance evaluation, and the method comprises the steps: carrying out the test scene matching, and obtaining a target acceleration test scene group; calling a plurality of aging trend curves according to the target acceleration test scene group; locally calling a historical operation data set of the to-be-tested super junction MOS device; performing degradation feature extraction on the historical operation data set to obtain multiple groups of historical operation time sequence fragments; performing degradation increment correlation prediction on multiple groups of historical operation time sequence fragments, and outputting a device aging time sequence trend curve; comparing the aging time sequence trend curve of the device based on a preset failure threshold value, and outputting the remaining service life of the device; and interactively obtaining an equipment life design index of the target power electronic system, and quantitatively outputting an aging performance evaluation result in combination with the residual service life of the device. The technical problem that the aging performance evaluation accuracy is insufficient in the prior art is solved, and the technical effect of improving the aging performance evaluation precision is achieved.

An apparatus is described. The apparatus includes a packaged semiconductor device. The packaged semiconductor device having an integrated heat spreader, wherein, a boiling enhancement structure exists on the integrated heat spreader without a block mass residing between the boiling enhancement structure and the integrated heat spreader. The boiling enhancement structure has a structured non-planar surface to promote bubble nucleation in an immersion cooling system.

The present invention discloses an intelligent onboard protection system for a plasma detector, comprising: an integrated protective cover and a nitrogen blowing port, a pressing device, a deployment device, a power supply subsystem and a control subsystem; the protective cover covers the sensor head and has an appearance consistent with the shape of the sensor head; the nitrogen blowing port blows nitrogen into the interior of the sensor during a ground test phase to prevent contamination; the system is sealed with a blocking cap before satellite launch to prevent dust contamination; the pressing device presses the protective cover against the sensor head when the system is in a protection state, and releases the protective cover by thermal cutting according to the instruction of the control subsystem; the deployment device cooperates with the pressing device to realize the deployment of the protective cover, and locks the protective cover after it is released to a specified position; the power supply subsystem supplies power to the pressing device according to the instruction of the control subsystem; the control subsystem periodically collects status monitoring parameters and transmits them to a payload management unit, controls the power on and off of the pressing device according to the ground remote control instruction, and executes the deployment operation of the system.

Device localization (e.g., ultra-wideband device localization) may be used to provide coordinated outputs and / or receive coordinated inputs using multiple devices. Providing coordinated outputs may include providing partial outputs using multiple devices, modifying an output of a device based on its position and / or orientation relative to another device, and the like. In some cases, each device of a set of multiple devices may provide a partial output, which combines with partial outputs of the remaining devices to produce a coordinated output.

In one embodiment, an electronic system comprises a display device to display data and processing logic coupled to the display device. The processing logic is configured to determine a duty cycle of at least one sensor for sensing flow of a product or particle through a product or particle line of an agricultural implement and to determine an amount of product or particles flowing through a line of the agricultural implement based on the duty cycle of the at least one sensor.

The invention relates to an electric vehicle wireless charging system LPV-Hammerstein model identification method based on an alternating least square iteration strategy, and belongs to the technical field of power electronic system modeling and parameter identification. The method comprises the following steps: firstly, constructing an LPV-Hammerstein model structure based on a WPT system circuit topology and a working mechanism, and then collecting discrete data of a system input control signal U, an output DC voltage Vo and a scheduling variable Req; then, alternately fixing other parameters by adopting an alternate least square iterative algorithm, and converting a to-be-estimated parameter problem into a linear least square sub-problem to be solved; and when a convergence condition is satisfied, a final LPV-Hammerstein model parameter estimation result is obtained. According to the method, the common nonlinear and parameter change coupling characteristics in the wireless charging system of the electric vehicle can be effectively processed, a systematized and efficient way is provided for obtaining a high-precision system dynamic model, and the limitation that the system cannot be accurately described by a traditional linear model or a simple nonlinear model is overcome.

The invention provides an electromagnetic shielding device of a complex electronic system, which belongs to the technical field of electromagnetic shielding of radio telescopes and comprises a filter shielding cabinet, a waveguide tube and a connecting mechanism. The filter shielding cabinet is arranged at the top of the shielding cabin and located outside the shielding cabin; a servo system shielding cabinet is arranged in the shielding cabin; the filter shielding cabinet is provided with a wire outlet pipe, the shielding cabin is provided with a mounting port, and the wire outlet pipe penetrates through the mounting port to enter the shielding cabin. And one end of the waveguide tube is connected with the filtering shielding mechanism, and the other end of the waveguide tube is connected with the servo system shielding cabinet. And the connecting mechanism is arranged at the wire outlet pipe and is used for connecting the wire outlet pipe and the waveguide tube or connecting the waveguide tube and the servo system shielding cabinet. The filter shielding cabinet is arranged outside the shielding cabin, the internal space of the shielding cabin is not occupied, and the problems that the space in the shielding cabin is narrow, and the filter shielding cabinet is difficult to install are solved.

Example implementations include a method, apparatus and computer-readable medium for automated analog electronic system design and analysis, comprising receiving a user query via a user interface. The implementations further include identifying, by a conversation agent of a machine learning model (MLM), at least one attribute of the user query. Additionally, the implementations further include selecting from a plurality of agents, by the conversation agent of the MLM, two or more agents that can collectively generate a response to the user query when executed in a specific sequence based on the at least one attribute of the user query. Additionally, the implementations further include prompting, by the conversation agent of the MLM, the two or more agents in the specific sequence to collectively generate the response. Additionally, the implementations further include outputting, by the conversation agent of the MLM, the response via the user interface.

A semiconductor device may include a plurality of gate electrodes apart from each other in a vertical direction on a substrate; a plurality of channel structures penetrating the plurality of gate electrodes and extending in the vertical direction; and a plurality of bit lines arranged on and connected to the plurality of channel structures. The plurality of bit lines may include a plurality of lower bit lines and a plurality of upper bit lines at different vertical levels from each other to constitute at least two layers. The plurality of upper bit lines may be apart from each other in a first horizontal direction and extend in parallel with each other in a second horizontal direction perpendicular to the first horizontal direction. A lower expansion space may be defined between two lower bit lines adjacent to each other among the plurality of lower bit lines.

The invention discloses a piezoresistive pressure sensor chip and a preparation method thereof, and belongs to the technical field of micro-electromechanical systems. The piezoresistive pressure sensor chip comprises a substrate, the back of the substrate is etched with a cavity, the center of the cavity is provided with a cross-shaped mass block, and four hollow islands and four peninsula are arranged along the linear direction of the cross-shaped mass block; a plurality of groups of piezoresistor strips are arranged on the front surface of the substrate, each group of piezoresistor strips comprises a first piezoresistor strip component arranged close to the center and a second piezoresistor strip component arranged close to the side wall of the cavity, and the first piezoresistor strip component forms an internal Wheatstone bridge through a first metal lead group; the second piezoresistor strip component forms an external Wheatstone bridge through a second metal lead group; the glass is arranged on the substrate back. The piezoresistive pressure sensor chip can measure the pressure of a micro-pressure section, can bear high overload equivalent to a plurality of times of the full scale, and has the advantages of high sensitivity, good linearity, high precision, good dynamic performance and the like.

The invention relates to the technical field of flexible electronic integrated systems, in particular to a multilayer flexible circuit, a preparation method thereof and a flexible electronic system. The multi-layer flexible circuit comprises a flexible substrate layer and a flexible conductive layer which are arranged in a stacked mode, and the flexible conductive layer comprises metal nanowire aerogel and a filled flexible base material. The flexible base material and the flexible substrate layer in the flexible conductive layer have tensile properties. The metal nanowire aerogel is in lap joint in the flexible conductive layer to form a rich conductive network, so that the flexible conductive layer has good conductivity. The special form of the metal nanowire aerogel enables the flexible conductive layer to have good electrical stability, namely resistance-strain insensitivity and resistance stability after long-term deformation, and when the flexible conductive layer deforms, the resistance does not change obviously. Due to the stacked structure design, the mechanical stretchable upper limit of the multi-layer flexible circuit is remarkably improved, the resistance change rate under the same deformation is remarkably reduced, and the resistance change is low after long-term use.

A method for providing customer service includes electronically receiving an inquiry from a user via a messaging engine; analyzing the inquiry to determine an inquiry parameter selected from the group consisting of a complexity of the inquiry, a number of outstanding inquiries, and an urgency of the inquiry; adjusting a reward amount based on the inquiry parameter, wherein the reward amount increases as the complexity, number of outstanding inquiries, or urgency increases; offering the adjusted reward amount to a pool of agents; and assigning the inquiry to a message queue of an agent from the pool of agents that accepts the offered adjusted reward amount.

Present disclosure discloses a capacitive sensing ring-sizing system. The capacitive sensing ring-sizing system is an advanced device that revolutionizes the ring sizing experience through its integration of sensor technology, wired rings, and a custom-built electronic system. It provides real-time feedback on ring fit, enabling users to find their perfect size with precision and simplicity. According to an embodiment, the capacitive sensing ring-sizing system uses capacitive sensors embedded in the ring to determine how well the ring fits on a finger. Rather than taking physical measurements of the finger size like circumference or diameter, the capacitive sensing ring-sizing system uses changes in capacitance caused by the interaction between the ring, the finger, and the skin's dielectric properties.

The invention discloses a multi-level pulse compensation type active EMI (Electro-Magnetic Interference) filter suitable for a multi-noise source switching power supply and a control method of the multi-level pulse compensation type active EMI filter. The invention provides a multi-level pulse compensation scheme based on switch behavior modeling, aiming at the problem of common-mode noise of adjacent rising edges and falling edges generated by a high-frequency switch in a multi-noise-source switching power supply. The time sequence delay and the edge slope of the compensation signal are calculated by analyzing the dv / dt characteristics in the switching-on and switching-off processes of the switching device, and accurate matching and offset with a noise source in phase and amplitude are achieved. Compensation control logic is realized by sharing a main control chip with a power circuit, and an additional controller and a high-precision sampling system are not needed; the self-adaptive tracking of the compensation amplitude is realized through the voltage following circuit; a multi-level compensation signal is output through the totem-pole circuit and injected into a common-mode path, and effective suppression of electromagnetic interference is achieved. The converter has the advantages of small size, low cost, simplicity and convenience in installation, high stability and the like, and is suitable for various multi-noise-source power electronic systems including a dual-active bridge converter, a phase-shifted full-bridge converter and an interleaving Buck converter.

The invention provides a computer cross-scale integrated analysis method based on a multi-physics field coupling mechanism, and the method comprises the steps: constructing a multi-level finite element model from a system level to a micro-area level, and integrating thermal-mechanical-electric coupling modeling; therefore, the technical problems that in a traditional method, multi-physics field coupling lacks, local area modeling is not fine, and electrical performance evolution is not introduced are solved, high-precision simulation of a typical device failure mechanism is achieved, and the method is suitable for device packaging reliability evaluation in special electronic systems such as military and high-reliability civil use and the like. The method can be widely popularized in microelectronic structures such as a power supply module, a processor and a memory, and can improve the evaluation precision of the high-frequency signal transmission performance of complex electronic equipment, thereby improving the precision of predicting the service life.

A method and system of diagnosing a vehicle with a vehicle diagnostic system to provide repair recommendations includes connecting a vehicle diagnostic computer tool to a diagnostic port of a vehicle to be in communication with an electronic system of the vehicle and reading vehicle data information of the vehicle with the vehicle diagnostic computer, such as diagnostic trouble codes (DTCs). A diagnostic evaluation program is operable to detect whether particular electrical vehicle systems are present on the vehicle, such as safety systems including Advanced Driver Assistance Systems. The system may additionally receive information regarding damage to the vehicle, such as from a collision. The system includes a repair information database and a report generator program that is operable to generate a repair recommendation report, including for example based on the vehicle data information, the particular electrical vehicle systems determined to be present, and the damage to the vehicle.

The invention provides an automatic driving electronic system reliability prediction method and system based on deep learning, and the method comprises the steps: building an electromagnetic environment and component interaction model, and tracking an electromagnetic interference source through time-frequency analysis; predicting a failure mode evolution path of a system component by using a dynamic LSTM model, and introducing a time-varying disturbance model to perform dynamic electromagnetic interference regularization; combining a failure mode prediction result, and adopting a self-adaptive time window and a time sequence regression model to predict the combined influence of electromagnetic interference on system failure; adjusting system control signals and resource configuration through an adaptive fault-tolerant control algorithm and a dynamic resource allocation strategy based on failure mode prediction and electromagnetic interference prediction values; and dynamically triggering a failure prevention mechanism according to the health assessment function, and optimizing prevention measures through a feedback correction mechanism. According to the method, the defects of the prior art in the aspects of prediction precision, interference identification, fault-tolerant mechanism and the like are effectively overcome, and a new technical path is provided for improving the reliability of the automatic driving system.