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135results about How to "Simplify complexity" patented technology

Full-automatic steam quality detector

The utility model relates to the technical field of steam quality detection, in particular to a full-automatic steam quality detector, which comprises a flow limiting device, a detector and a controller, the heating device is connected with the flow limiting device and used for heating the throttled steam to superheated steam; the heat exchange device is connected with the heating device and used for condensing the steam; the non-condensable gas measuring device is connected with the heat exchange device and is used for collecting non-condensable gas; the flow limiting device, the heating device, the heat exchange device and the non-condensable gas measuring device are all connected with the controller. According to the steam quality detection device, the steam quality detection structure is simplified.
Owner:SHINVA MEDICAL INSTR CO LTD

Interface circuits and electronic devices

This application relates to an interface circuit and an electronic device. The interface circuit includes an input interface unit, an output interface unit, an input connection terminal, an output connection terminal, a device connection terminal, and a common selection terminal. The input and output connection terminals are used to connect to a controller, the device connection terminal is used to connect to an external device, and the common selection terminal is used to receive a preset voltage signal. The input interface unit is connected to the input connection terminal, the device connection terminal, and the common selection terminal, and is used to receive the signal to be transmitted received at the device connection terminal and the preset voltage received at the common selection terminal, and outputs a signal corresponding to the signal to be transmitted through the input connection terminal. The output interface unit is connected to the output connection terminal, the device connection terminal, and the common selection terminal, and is used to receive the output signal received at the output connection terminal and the preset voltage received at the common selection terminal, and outputs a signal corresponding to the output signal through the device connection terminal. This interface circuit integrates the functions of a DI circuit and a DO circuit, exhibiting high integration.
Owner:NANJING HUICHUAN TECH CO LTD

An automatic blowing device for preventing film winding, with adjustable blowing direction

ActiveCN224603428USolve the entanglementImprove continuous operation capability
The utility model discloses an adjustable anti -film winding automatic injection device of blowing direction relates to cigarette packet film -tearing technical field, aims at solving the problem of raw material loss caused by the adsorption of film winding clamp and film and tobacco sheet due to the pressure difference when the existing pneumatic clamp is in the process of disassembling cigarette packet film. The device comprises a support, a clamp, a cylinder, a gas top rod and a multi-pipeline gas distribution are equipped on the support, the gas distribution is connected with the gas source through the gas pipe and is installed with the universal nozzle. When working, the clamp clamps the film, and the universal nozzle sprays the airflow, so that the film is kept below the clamp to avoid winding and eliminate the adsorption effect of the film and the tobacco sheet. The utility model through the airflow dynamic regulation and control, effectively reduces the shutdown maintenance frequency and raw material loss, and improves the production benefit of the tobacco primary processing technology.
Owner:CHINA TOBACCO JIANGXI IND CO LTD

Oil core piece of electronic atomizer

The utility model provides an oil core piece of an electronic atomizer, which comprises a first shell provided with a first cavity for storing tobacco tar and a second cavity for receiving the tobacco tar; the second shell is provided with a first channel used for conveying air to the second cavity; the adjusting assembly is rotationally connected between the first shell and the second shell, and a second channel and a blocking part are arranged in the adjusting assembly; wherein the adjusting assembly is provided with a first station and a second station, and the first station or the second station is switched by rotating the adjusting assembly; when the adjusting assembly is located at the first station, the second channel communicates with the first cavity and the second cavity in a butt joint mode, and the first channel communicates with the second cavity through the blocking component in a receding mode. When the adjusting assembly is located at the second station, the second channel and the first cavity are dislocated and disconnected to seal the first cavity, and the plugging part is closed to disconnect the first channel and the second cavity; the problem that an oil path and a gas path cannot be normally opened and closed by a valve due to short circuit of an existing oil core piece is solved.
Owner:SHENZHEN SUMMER MIRACLE TECH CO LTD

Routing method, device and equipment for data transmission, medium and program product

The embodiment of the invention discloses a routing method and device for data transmission, equipment, a medium and a program product, which are used for simplifying the data routing complexity, reducing the calculation overhead and improving the data routing performance in a high dynamic environment. The method comprises the steps that a data transmission notification is received, the data transmission notification comprises a source node and a destination node for data transmission, one of the source node and the destination node is a ground network element, and the other one is a satellite-borne network element; according to pre-maintained satellite-ground topological information and inter-satellite topological information, routing information of each routing segment in a plurality of routing segments between the ground network element and the satellite-borne network element which are configured in advance is calculated, and the satellite-ground topological information comprises a connection relation between a gateway station and a satellite node; the inter-satellite topological information comprises a connection relationship among a plurality of satellite nodes; and performing routing configuration according to the routing information of each routing segment.
Owner:CHINA STAR NETWORK SYST RES INST CO LTD

Material taking and conveying device and material transport vehicle

The utility model belongs to the technical field of transport vehicles, and discloses a material taking and conveying device and a material transport vehicle, which comprise a support frame, a moving part and a blocking part, the support frame is provided with a material storage platform for placing materials, and the moving part is provided with a material transfer space and a material taking port for the materials to enter and exit from the material transfer space. The moving part can move in the first horizontal direction relative to the supporting frame so as to push materials stored on the material storage platform out of the material storage platform, the blocking part is installed on the moving part and can be switched between the separation position and the blocking position, and when the blocking part is located at the blocking position, the blocking part is separated. The blocking piece can abut against materials in the material transfer space in the first horizontal direction so as to prevent the materials from entering and exiting the material taking opening. When the blocking piece is located at the separation position, the blocking piece is always separated from the materials so that the materials can enter and exit from the material taking opening. According to the material taking and conveying device and the material transport vehicle, the complexity of material taking and conveying operation is simplified, and the production cost is effectively reduced.
Owner:GIANT ELECTRIC VEHICLE KUNSHAN

A screw connection mechanism for an injection device and an injection device

This utility model belongs to the technical field of injection devices, and provides a screw connection mechanism for injection equipment and an injection device. The connection mechanism includes: a hollow shaft, which is fixedly connected to the output end of a motor, and the inner peripheral wall of the hollow shaft is provided with a first limiting structure; a connecting sleeve, which is axially movable and disposed within the hollow shaft and connected to the screw, and the outer peripheral wall of the connecting sleeve is provided with a second limiting structure. Compared with the prior art, this utility model, by providing an inner peripheral wall with a first limiting structure within the hollow shaft and a matching second limiting structure on the outer peripheral wall of the connecting sleeve, allows the two to cooperate through multi-faceted contact. This enables the connecting sleeve and the screw to rotate synchronously when the hollow shaft rotates, while allowing the connecting sleeve to move freely along the axial direction. This structure simplifies the complexity of traditional connection structures, avoids problems such as poor fit and clearance accumulation caused by multi-stage connections or rolling elements, and improves transmission efficiency and equipment service life.
Owner:NINGBO MUZHUO MASCH TECH CO LTD

Anti-no-equipment combination system and display control method

The invention provides an anti-device-free combination system and a display control method, the anti-device-free combination system comprises a display control device and N layers of anti-device-free devices, and the display control device is connected with the first layer of anti-device-free device in the N layers of anti-device-free devices; the (i + 1) th layer of reverse null equipment in the N layers of reverse null equipment is connected with one of the ith layer of reverse null equipment in the N layers of reverse null equipment; the anti-null device of the (i + 1) th layer comprises a first anti-null device, and the anti-null device of the ith layer comprises a second anti-null device; the first anti-null device is used for reporting device operation related data of the first anti-null device to the second anti-null device; the second anti-null device is used for determining sub-device list data of the second anti-null device according to the device operation related data reported by the first anti-null device, and sending the sub-device list data to a superior device of the second anti-null device; and the display control equipment is used for generating and displaying an anti-no-equipment topological graph corresponding to the N layers of anti-no-equipment according to the sub-equipment list data sent by the first layer of anti-no-equipment.
Owner:SHENZHEN SAIFANG HEHUI SOFTWARE DEVELOPMENT CO LTD

Distributed jammer closed-loop coherent control method based on synthetic effect feedback

The invention belongs to the technical field of electronic countermeasures, and particularly relates to a distributed jammer closed-loop coherent control method based on synthesis effect feedback, which comprises the following steps of: modeling signal coherent synthesis efficiency, acquiring coherent synthesis efficiency of a jammer A and a jammer B under different phase differences under an error-free condition, and calculating the coherent synthesis efficiency of the jammer A and the jammer B; establishing a phase difference-coherent combination efficiency mapping relation reference database; a-B jammer phase correction is carried out; and jammer A-C correction is carried out. According to the method, the robustness and the engineering practicability are remarkably improved; the cost, the power consumption and the complexity are effectively reduced; according to the invention, by taking a synthesis effect as a guide, the harsh requirement on the absolute space-time precision of a single node is relaxed, common commercial devices with lower cost and lower precision are allowed to be used for construction, and meanwhile, the complexity of initial calibration and setting is simplified, so that the hardware cost, power consumption and deployment and maintenance difficulty of the whole distributed mode are greatly reduced; and the dynamic self-correction and long-term stability capabilities are endowed.
Owner:XIDIAN UNIV HANGZHOU RES INST +1

R-2r digital-to-analog converter with auxiliary calibration structure

The application discloses an R-2R digital-analog converter with an auxiliary calibration structure and relates to the technical field of high-precision digital-analog conversion. The converter comprises a main DAC, a calibration quantity calculation module, a compensation code generation module, an auxiliary DAC and an operational amplifier circuit. The main DAC converts a digital input into an analog current. The calibration quantity calculation module generates a 15-bit compensation code containing a 1-bit sign bit and a 14-bit data bit through a 24-bit ADC, a comparator and successive approximation logic, and only calibrates the high 12 bits of the main DAC bit by bit, and the low 4 bits do not need to be calibrated. The compensation code generation module generates a total compensation code through gating by a multiplexer and superposition by an adder. The auxiliary DAC is a 14-bit binary current type structure, and realizes bidirectional compensation in cooperation with a positive and negative reference voltage source. The application has the advantages of short calibration period, small storage consumption, no need for additional bias calibration, excellent linearity, and suitability for application in the fields of wireless communication, biological medicine and the like, and meets the application requirements of high resolution and high precision.
Owner:TONGJI UNIV

A method and system for fast decision of aeroglow gravity wave image of ground base

The present application relates to a kind of ground airglow gravity wave image fast determination method and system, method includes: collecting real-time ground airglow image;After the real-time ground airglow image is preprocessed, input layered transfer learning model, output gravity wave existence probability, and save wave image, wherein, the layered transfer learning model is obtained by segment training to ground airglow image dataset, the layered transfer learning model includes pre-training EfficientNetB3 model, deformable convolution layer and classification head.The present application solves the problem that ground airglow imager is difficult to automatically distinguish gravity wave in short-term deployment in real time, reduces artificial expert discrimination workload, while avoiding the problem of overfitting low accuracy of traditional machine learning method in short time small amount of data training.Reach the purpose of rapid deployment, efficient identification.
Owner:NAT SPACE SCI CENT CAS

A multi-modal sentiment analysis method and system based on sequential translation under uncertain missing modalities

This invention relates to the field of multimodal sentiment analysis technology, and in particular to a method and system for multimodal sentiment analysis based on sequential translation under uncertain and missing modalities. The method includes: acquiring multimodal sentiment data, including visual, textual, and auditory modalities; constructing a multimodal sentiment analysis model based on sequential translation, firstly by extracting self-attention encoding features of each modality using a Transformer encoder; and then designing a bidirectional sequential translation architecture centered on the textual modality. This invention improves the utilization of textual modal features in the feature fusion process, thereby enhancing the quality of multimodal fusion features and providing strong support for subsequent complex sentiment analysis.
Owner:HENAN CULTURAL TOURISM INVESTMENT GROUP CO LTD +1

A composite data transmission method and related apparatus

PendingCN122507676AImprove real-time performanceSolve the problem of simultaneous transmission
The application discloses a composite data transmission method and related device, and relates to the technical field of computers, and the method comprises the following steps: if it is judged that the data transmission from a device end to a host end is one-way transmission, the device end collects original audio and video data, carries out algorithm processing and classification; the original audio and video data is encapsulated and transmitted to the host end, the first composite data is received, and the first composite data is analyzed; the first analysis data is written into a target virtual drive, the first analysis data is integrated, a target instruction is generated, and the target instruction is transmitted to the device end; if it is judged that the data transmission is not one-way transmission, the host end packs the original audio and video data, transmits the second composite data to a computing box; the second composite data is analyzed, the second analysis data is processed by calling an algorithm library, the second analysis data is packed, and the second analysis data is returned to the host end; the packed data is analyzed, and the packed data is transmitted to a target application. The application provides high-quality original audio and video data transmission.
Owner:DTEN TECH CORP LTD HANGZHOU

Multi-dimensional vibration platform with oppositely-arranged double-sandwich type piezoelectric actuators and excitation method of multi-dimensional vibration platform

PendingCN121939848AFlexible stimulation of rotationGreat application potentialPiezoelectric/electrostriction/magnetostriction machinesPrecision engineeringNano machining
The invention provides a multi-dimensional vibration platform with oppositely-arranged double-sandwich piezoelectric actuators and an excitation method of the multi-dimensional vibration platform, and belongs to the technical field of high-frequency vibration engineering and micro-nano machining.The vibration platform comprises a center platform, the two oppositely-arranged piezoelectric actuators, two end covers and two bolts, wherein the center platform is integrated with the tail end platform, the two flexible hinges and the two amplitude-change poles, and the center platform is slender and is in mirror symmetry about the longitudinal symmetry plane of the tail end platform. The piezoelectric actuator comprises a longitudinal vibration ceramic group, a bending vibration ceramic group around the Y axis and a bending vibration ceramic group around the Z axis, translation along the X / Y / Z axis and rotation around the Y / Z axis can be realized through in-phase or anti-phase excitation different combinations under the condition of not increasing extra driving channels, and five-degree-of-freedom high-frequency micro-vibration output can be achieved at most. The structure has high symmetry, low parasitic vibration, compact size and high integration, and is suitable for precise engineering scenes such as micro-nano processing, laser-assisted manufacturing, cell manipulation and active vibration suppression.
Owner:HARBIN INST OF TECH

Turbine blade module mold shell preparation deformation prediction method and system based on two-level nested graph neural network

PendingCN122286988Aprecise positioningAvoid redundant duplicationAlgorithmMulti source data
This invention discloses a method and system for predicting deformation during the fabrication of turbine blade module shells based on a two-level nested graph neural network, belonging to the field of digital control technology for aero-engine turbine blade manufacturing. The method includes acquiring a large module CAD model, finite element simulation results, and CT scan data; performing multi-source data registration and fusion to obtain unified multi-source data features; constructing a two-level nested graph structure based on the multi-source data features; and inputting the two-level nested graph structure into a nested graph neural network model for sintering deformation prediction. This invention integrates the CAD geometric model and finite element simulation results, mapping high-density simulation data to sub-graph nodes using spatial interpolation technology; employing a nested graph neural network for hierarchical feature extraction, enabling each blade to learn its own local deformation pattern and perceive its positional context within the module; finally, outputting the three-dimensional deformation prediction values ​​for each sampling point, and visually marking high-risk areas to assist in process optimization decisions.
Owner:SHANGHAI UNIV

A cooling liquid circulating system for a charging pile and a charging pile system

PendingCN122585014ARealize integrationAchieve integrated collaborative thermal management
This disclosure relates to a coolant circulation system for a charging pile and a charging pile system. The coolant circulation system includes a main inlet pipe, a main return pipe, a first module pipeline, and a heat exchanger. The first module pipeline includes a first inlet pipe, a return pipe, a plurality of first cooling pipes, and a first gun cooling pipe. The first inlet pipe has a first inlet and a first outlet. The first inlet is connected to the main inlet pipe. The return pipe is connected to the main return pipe. Each first cooling pipe corresponds one-to-one with each power module in a first group of power modules. The inlet end of each first cooling pipe is sequentially connected between the first inlet and the first outlet of the first inlet pipe. The outlet end of each first cooling pipe is sequentially connected to the return pipe. The first gun cooling pipe is connected between the first outlet and the main return pipe. A heat exchanger is disposed between the main return pipe and the main inlet pipe to form a closed loop. The heat exchanger is configured to cool the coolant.
Owner:GONEO GRP CO LTD

Charging load prediction method and device based on time sequence decomposition and electronic equipment

The invention discloses a charging load prediction method and device based on time sequence decomposition and electronic equipment, belongs to the technical field of load prediction, and aims to solve the problem that a traditional prediction method is difficult to effectively capture a complex seasonal rule of charging of an electric vehicle. The method comprises the following steps: acquiring historical load data, wherein the historical load data comprises a load value and meteorological environment information in a preset period; a prior feature and a basic feature are obtained based on the historical load data, the basic feature comprises at least one of a time index feature and a meteorological environment feature, and the prior feature is obtained by decomposing a time sequence feature of the historical load data by a Prophet model; fusing the prior features and the basic features to obtain an input feature vector; and inputting the input feature vector into a pre-trained prediction module for load prediction to obtain a prediction result. According to the embodiment of the invention, the accuracy of the charging load prediction result can be improved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Lower extremity mechanism and robot

ActiveCN117734849Bavoid strong couplingsimplify complexity
The application relates to the technical field of robots, and provides a lower limb mechanism and a robot, the lower limb mechanism comprising a thigh assembly, a shank assembly and a foot assembly; at least one of the thigh assembly and the shank assembly and the shank assembly and the foot assembly is connected through a translation assembly, and the translation direction of the translation assembly is perpendicular to the walking direction of the thigh assembly in a horizontal plane. The lower limb mechanism provided by the embodiment of the application is connected through the translation assembly between the thigh assembly and the shank assembly and between the shank assembly and the foot assembly, the lateral translation perpendicular to the walking direction is realized through the translation assembly, the lateral translation only affects the position of the center of mass in the lateral direction, strong coupling is avoided, and the complexity of gait planning and control is simplified.
Owner:TSINGHUA UNIVERSITY

Flexible capillary hydrogen storage device and manufacturing method thereof

The application discloses a flexible capillary hydrogen storage device and a manufacturing method thereof, and is characterized in that device components include a framework, a flexible hydrogen storage capillary and a high-pressure-resistant metal connecting piece; wherein both ends of the flexible hydrogen storage capillary are in an open state. The device manufacturing steps include: flexible hydrogen storage capillary single-pipe drawing, flexible hydrogen storage capillary arrangement and flexible hydrogen storage capillary end sealing. Compared with the prior art, the application can realize higher hydrogen storage pressure and higher mass hydrogen storage density, and the device has the advantages of flexible structure, higher safety, no hydrogen embrittlement and the like.
Owner:BEIJING GLASS RES INST

A furnace door structure for a vacuum drying furnace

ActiveCN224340638Usimplify complexityavoid mishandling
The utility model relates to metal processing machine tool technical field, and disclose a kind of furnace door structure for vacuum drying furnace, including vacuum drying furnace body, the vacuum drying furnace body right side is provided with closing locking mechanism, by the closing locking mechanism being set, closed door opens and slider is located in the right side in the groove plate corresponding groove, and pull rod and connecting block junction are located in the groove plate corresponding arc groove, at this time, by starting motor, and then synchronous drive sealing door gradually close to vacuum drying furnace body, make it insert into vacuum drying furnace body, and before insertion, sealing door pushes inclined block and moves upward, to complete the secondary fixing of its sealing door, and in the whole sealing closing process, without manual intervention, to simplify the complexity of operation, simultaneously avoid manual operation failure, and under the condition of frequent opening or closing furnace door, make it reduce the preparation time of closing furnace door, and then improve work efficiency.
Owner:DALIAN WANHU IND & TRADE CO LTD

Cross shaft automatic feeding and discharging device

ActiveCN224393990Ureduce complexityAvoid processing stop problemsConveyor partsVertical planeControl theory
The utility model provides a kind of cross shaft automatic feeding and discharging device, comprising: associated clamping device, set to transfer mechanical arm;Queue type feeding device, for arranging cross shaft to be processed, and there is a lifting turnover mechanism in output direction;At least two queue type feeding devices are arranged in parallel with conveying axis, and the vertical plane where output port is the same vertical plane;Conveyer plane is provided at the top of queue type feeding device, and the top surface conveying direction of conveyer plane is opposite to the output direction of queue type feeding device;The first working position of lifting turnover mechanism is matched with the output port of queue type feeding device, and the second working position is matched with the conveying plane of conveyer plane;Associated clamping device and conveyer plane and lifting turnover mechanism cooperate work.
Owner:HANGZHOU CHUNYUAN AUTOMATION TECH CO LTD

An eddy current sensor system

ActiveCN224650532UEliminate the effects ofRealize power supply
This invention belongs to the field of sensor technology, specifically relating to an eddy current sensor system, including a signal conditioning circuit, a coaxial cable, and a probe-end circuit. The signal conditioning circuit includes a power amplification module for superimposing a DC bias voltage with an AC excitation signal to generate a mixed signal, which is then transmitted to the probe-end circuit via the coaxial cable. The probe-end circuit includes a series capacitor, a filter circuit, and a follower. The series capacitor couples an AC excitation signal from the mixed signal to drive the probe coil. The filter circuit extracts a DC bias voltage from the mixed signal to power the follower. The follower receives the impedance change signal of the probe coil and transmits it back to the signal conditioning circuit via the coaxial cable. This invention eliminates the influence of the distributed parameters of the coaxial cable on the probe characteristics. The length of the coaxial cable can be arbitrarily extended or shortened without re-matching and calibration. It also eliminates the output drift problem caused by bending of the coaxial cable and simplifies the system wiring complexity.
Owner:ANHUI JIANXING TECH CO LTD

Method for failure communication and handling of in-vehicle networks using automotive ethernet

This invention relates to a method for fault communication and handling in an in-vehicle network using automotive Ethernet, wherein the in-vehicle network includes multiple network nodes interconnected in a network structure. The method includes the following steps: detecting a critical event at one of the network nodes of the in-vehicle network, wherein the critical event is detected by a network node affected by the critical event or by a network node connected to the network node affected by the critical event; generating a critical event message at the physical layer and / or data link layer of the network node that detected the critical event; broadcasting the critical event message to multiple network nodes of the in-vehicle network; and receiving and processing the critical event message at the physical layer and / or data link layer of the automotive Ethernet at other network nodes of the in-vehicle network.
Owner:MICROCHIP TECHNOLOGY INC

Method and system for quickly calling vehicle personnel by using NFC in unmanned scenario

PendingCN122317531AGet location information in real timeNo binding errors will occurUnique identifierEmbedded system
This invention provides a method and system for quickly calling accompanying personnel in an autonomous driving scenario using NFC, relating to the field of autonomous driving communication technology. The method includes: when boarding the vehicle, the accompanying personnel touch an NFC tag with a handheld device to send a location binding request to a connected dispatch server; the dispatch server obtains the real-time train location as the personnel's real-time location based on a unique identifier and sends the personnel's real-time location and corresponding calling number to a connected dispatch console; the dispatch console automatically creates a temporary call group based on the personnel's real-time location and corresponding calling number, allowing dispatchers to quickly initiate calls to the corresponding accompanying personnel through the temporary call group; the calling numbers of the handheld devices held by all accompanying personnel on the same train are located within the same temporary call group. The advantages are that binding the train via NFC avoids binding errors, the dispatch console can automatically and in real-time obtain the location information of accompanying personnel, and the automatic creation of temporary call groups prevents errors and omissions.
Owner:SHANGHAI GBCOM COMM TECH CO LTD

A traffic cone tapered pitch storage and destacking device

ActiveCN120397591BSolve reliability challengesAvoid warehousing failure
This invention discloses a traffic cone gradual pitch storage and destacking device, comprising a gradual pitch storage device and a transfer and loading / unloading device. The gradual pitch storage device includes a drive motor, a storage rack, and a gradual pitch roller, which is rotatably mounted on a rear cargo platform. The grooves on the gradual pitch roller are adapted to the thickness of the bottom plate of the traffic cone. The gradual pitch roller is axially divided into a storage section and a destacking / unloading section. The destacking / unloading section is located at the end of the gradual pitch roller near the transfer and loading / unloading device. The pitch on the destacking / unloading section is a gradual pitch, increasing in the direction closer to the transfer and loading / unloading device, while the pitch on the storage section is a constant pitch. This invention achieves an integrated design of storage, transportation, and destacking / unloading functions, reducing costs and control complexity. Furthermore, the traffic cone is effectively limited throughout the storage, transportation, and destacking / unloading process, effectively preventing storage failures caused by vehicle movement or stress, resulting in good operational stability.
Owner:JIANGSU JITRI ROAD ENG TECH & EQUIP RES INST CO LTD

A field-extended solar sensor based on diffraction order sub-multiplexing

ActiveCN121677687Bensure uniquenessensure accuracy and
This invention discloses a field-of-view extended solar sensor based on diffraction order multiplexing, comprising a dual-band bandpass filter, a diffractive light introducer, and a color CMOS image sensor. The dual-band bandpass filter selects two separate, preset wavelengths of sunlight for incidence, while the diffractive light introducer diffracts the transmitted sunlight into multi-order beams. The color CMOS image sensor acquires diffraction spot images containing spectral information from both wavelengths. The current effective diffraction order is determined by the mapping relationship between the centroid positions and spot spacing of the spots in the two corresponding wavelength channels and the diffraction order. Finally, the solar vector is calculated using a diffraction optics model. This invention resolves the inherent contradiction between large field of view and high precision in traditional digital solar sensors, effectively overcoming the order ambiguity problem in diffraction-extended field of view. Its lightweight design adapts to high-density integration requirements, providing technical support for spacecraft attitude measurement.
Owner:SOUTHEAST UNIV

System and method for accelerating reading compressed files based on a virtual file system

The application discloses a system and method for accelerating reading compressed files based on A Virtual File System, and belongs to the technical field of time series databases; the technical problem to be solved by the application is how to realize column format compressed storage and reading of time series data types, reduce IO, memory and CPU consumption caused by decompression, and improve the ability of the system to process time series data; the technical scheme adopted is as follows: in the time series engine of the open database ZNBase, an execution engine generates an execution plan according to SQL semantic analysis, calls a storage layer interface of ZNBase, and queries accurate time series history partition compressed data; the storage layer completes fast execution of the query in the storage layer based on various compressed query interfaces provided by AVFS, and accelerates the query of the database; the specific steps are as follows: pre-analysis; compressed file pre-reading; reading compressed data.
Owner:上海沄熹科技有限公司

Atmosphere monitoring point optimization identification method, device and equipment and storage medium

The application provides an atmospheric monitoring point distribution optimization identification method, device and equipment and a storage medium. It relates to the technical field of environmental monitoring. The method comprises the following steps: calculating Voronoi area and neighborhood density as node features based on the latitude and longitude of the site, combining with the AQI correlation to construct a graph structure; training a PollutionGNN model by using a double-layer GAT network with residual connection, establishing a three-objective optimization model of site number, coverage area and prediction error, and realizing the Pareto optimal solution set of monitoring efficiency by using an NSGA-III algorithm. The application solves the problem that the traditional point distribution method is difficult to balance the cost, coverage and precision, provides a theoretical basis for cross-regional application through the influence mechanism of geographical environment and pollution source structure on algorithm performance, finally realizes the upgrading of the monitoring network from experience layout to intelligent optimization, and provides an efficient and reusable solution for different cities.
Owner:湖南工商大学

Energy recovery system with bidirectional charge and discharge, control method and power utilization system

ActiveCN121507887BSimplify independent managementSimplify system controlBatteries circuit arrangementsDc-dc conversionCapacitanceHemt circuits
The application discloses a bidirectional charge-discharge energy recovery system, a control method and a power utilization system, and relates to the technical field of electric energy recovery. The application comprises an energy storage assembly, a detection circuit, a bidirectional switch circuit and a control circuit. The application replaces the traditional bidirectional DC / DC converter with the bidirectional switch circuit composed of simple switch devices, realizes the bidirectional independent controllability of charging and discharging, simplifies the system complexity and reduces the system cost. Specifically, the low-loss characteristics of the switch device in the conduction state are utilized to construct an efficient energy path, so as to eliminate the inherent energy loss caused by the DC / DC conversion link on the hardware, and improve the system efficiency. Meanwhile, the topology structure greatly reduces the number of inductors, capacitors and other power elements, reduces the system cost and volume, and replaces the complex PWM modulation and closed-loop algorithm through the logical on-off control of the switch device, so as to realize the independent management of the charge-discharge path and the simplification of the system control.
Owner:HEFEI HUASI SYST CO LTD