34results about How to "Verify performance" patented technology

The utility model provides a server-level liquid cooling test verification device, which comprises a test shell, a liquid cooling test circulation assembly, a controller, a power distribution control module, a data acquisition module and a power supply module, the test shell is arranged in a liquid cooling cabinet, the liquid cooling test circulation assembly is arranged on the upper side in the test shell, and the controller is connected with the power distribution control module. A power supply module, a controller, a power distribution control module and a data acquisition module are arranged on the lower side in the test shell, the power supply module is connected with the power distribution control module for supplying power, the liquid cooling circulation test assembly is connected with the data acquisition module and the controller, and the data acquisition module and the power distribution control module are connected with the controller; a power distribution device of the liquid cooling cabinet is connected with the power supply module, and a cooling working medium water dividing and collecting unit of the liquid cooling cabinet is connected with the liquid cooling test circulation assembly. According to the server-level liquid cooling test verification device provided by the utility model, the actual operation condition of a liquid cooling server is simulated to the greatest extent, so that the performance of products, systems and projects related to a liquid cooling data center is verified.

The invention discloses a hot upflow positioning method based on data driving. For a long time, unmanned aerial vehicles are always indispensable in the industries of monitoring tasks, geographic surveying and mapping, target reconnaissance and the like. Flight endurance is a key limit for wide use of unmanned aerial vehicles. However, although researchers effort to modify and optimize the aerodynamic shape to reduce glider drag or replace battery reactants, use of these methods to increase flight endurance still has limitations. The invention aims to utilize the energy of the nature by collecting wind energy. According to the method, upflow estimation is considered, and then the position of the wind field is estimated through a sparse recognition algorithm of nonlinear dynamics. The thermal positioning is realized through the SINDy-based method and the characteristic of accurately identifying the mathematical physical specification model, so that the capability of identifying the hot upflow is improved, and the energy of the aircraft is increased.

The invention discloses an incoherent chaos communication method and device based on deep learning, and relates to the field of data processing, and the method comprises the steps: obtaining a chaos receiving signal to be demodulated, carrying out the power spectrum density estimation, obtaining a PSD sequence, inputting the PSD sequence into a trained chaos receiving signal demodulation model, receiving the PSD sequence through an input layer, enabling the PSD sequence to pass through a first BiLSTM layer, and carrying out the demodulation of the chaos receiving signal through a second BiLSTM layer; a first time domain feature of the PSD sequence is extracted and then passes through a self-attention layer to obtain a first intermediate feature, the first intermediate feature passes through a first Dropout layer to obtain a second intermediate feature, the second intermediate feature passes through a second BiLSTM layer to extract a second time domain feature of the PSD sequence and then passes through a second Dropout layer to obtain a third intermediate feature; and inputting the third intermediate feature into a full connection layer and a Softmax layer for feature integration to obtain a probability distribution vector, and performing maximum likelihood judgment on the probability distribution vector through a classification layer to obtain an estimated binary information bit. The problem that an existing chaotic communication system is low in spectrum efficiency is solved.

The invention discloses a camera serial interface controller test system based on ZYNQ and HAPS and a method thereof. The system comprises a ZYNQ FPGA device serving as a master device and an HAPS FPGA device serving as a slave device. Wherein the interior of the ZYNQ FPGA device comprises a D-PHY module and a C-IL module, and the interior of the HAPS FPGA device comprises a CS I controller and a DDR memory; the ZYNQ FPGA device is connected with a camera, the camera transmits image data to the ZYNQ FPGA device through an MIPI interface, and the ZYNQ FPGA device converts the image data into a PPI interface signal and transmits the PPI interface signal to a CS I controller in the HAPS FPGA device; and the CS I controller processes the PPI interface signal, extracts image data from the PPI interface signal and stores the image data in the DDR memory. Through combined use of the ZYNQ FPGA device and the HAPS FPGA device, the MIPI analog signal output by the camera can be received, converted and processed, and then the performance and reliability of the CS I controller are verified.

A CPT magnetometer sensitivity improving method based on magnetic field modulation in geomagnetic prospecting comprises the following steps: performing half-wave modulation on laser generated by a laser by using an EOM to obtain multicolor laser, and weakening the light intensity and changing the polarization state of the laser through a light intensity adjusting device; meanwhile, sine wave modulation is applied to the magnetic field where the air chamber is located, a lock-in amplifier is used for demodulating optical signals through sine wave modulation signals to obtain corresponding dispersion signals, and the size of the magnetic field to be measured in geomagnetic prospecting is further obtained. The sensitivity of the magnetometer modulated by the magnetic field is close to the sensitivity obtained by the traditional laser light source modulation method, but the magnetic field modulation method gets rid of the difficulty of too high requirement on the laser light source, and the coil structure and principle are relatively simple and are more suitable for a complex working environment. In conclusion, the CPT atomic magnetometer based on the magnetic field modulation method can be widely applied to the fields of magnetic field drawing, mineral exploration and the like, has the characteristics of high precision, high resolution and the like, and also shows a wide market application prospect in the aspects of miniaturization, low power consumption and the like.

The utility model discloses an engine test bench, which relates to the technical field of engine test benches and comprises a base, a moving mechanism is fixedly mounted at the top of the right side of the base, a bench mechanism is fixedly mounted at the top of the moving mechanism, and an adjusting mechanism is fixedly mounted at the top of the left side of the base. An engine is hoisted and placed on the top face of the placing table and fixed through the clamp, the horizontal direction of the engine is adjusted through horizontal rotation of the rack mechanism, then the position is adjusted through the moving mechanism, and at the moment, the electric push rod pushes the limiting block to move on the track and drives the driving assembly to horizontally move, so that the driving assembly can be in butt joint with the adjusted engine; the engine test bench is used for driving an engine to operate synchronously, provides a controllable environment, enables engineers to systematically test and evaluate the engine to verify the design, performance and reliability of the engine, is compatible with engines of different models, and is wide in test application range.

The invention discloses a large-scale ad hoc network multipoint relay selection method based on ant colony optimization, and the method can effectively reduce the size of a selected MPR set, thereby reducing the packet loss rate of a network, and improving the throughput of the network. Firstly, an ant colony algorithm is introduced into a selection process of an MPR set, secondly, a local three-hop neighbor database and speed measurement are added into a path selection decision of a node, and then for updating pheromones, a global pheromone updating rule is adopted to update the pheromones on a path so as to prevent the algorithm from being converged to a local optimal solution. According to the method provided by the invention, the problem that the traditional MPR selection algorithm is easy to generate redundancy and the difficulty that the traditional MPR selection algorithm cannot adapt to the existing large-scale ad hoc network are well overcome.

The present invention provides a method for measuring the height of pores in a submerged arc welded steel pipe, including preparation before measurement; adjusting the measurement software; using an X-ray machine to detect the weld of the steel pipe and the groove comparison test block, and capturing and acquiring digital images with a flat-panel detector; calibrating the geometric dimensions of the collected images; using an X-ray machine to detect the weld of the steel pipe in real time, and using the measurement software to record the digital imaging of the weld of the steel pipe in real time; using software tools to measure the grayscale uniformity area of ​​the weld of the submerged arc welded steel pipe, the grayscale value of each groove of the groove comparison test block; measuring the maximum grayscale value of the pore to determine whether the pore is a deep hole; and calculating the height of the pore. The present invention has a high measurement accuracy and provides a basis for evaluating whether the submerged arc welding pore is a deep hole. In production and use, it can reduce the cost of pore rework and the cost of cutting off the end of the steel pipe, assist production units in improving welding quality, improve the depth discrimination of other defects, and ensure product quality. It is suitable for popularization and use.

The embodiment of the utility model provides a marine fuel gas detection sensor test platform. The test platform comprises a gas cylinder, a gas sample injection instrument, a gas proportioning box, a stirring fan, a filter, a gas analyzer, a mist generator, a temperature transmitter and a heater. The device can be used for simulating the working environment of gas detection under the marine use condition and verifying the main functions and performance of the marine gas detection sensor.

The invention discloses an improved YOLOV5s-based vehicle identification method under a complex illumination condition, and belongs to the technical field of image identification methods. The existing vehicle detection algorithm still has the conditions of missing detection and false detection when facing traffic road conditions under complex illumination conditions. A vehicle identification method under a complex illumination condition based on improved YOLOV5s comprises the following steps: building a network structure of a YOLOV5s model based on a PyTorch framework; the method comprises the following steps: processing a public data set BDD100K data set, and training an established YOLOv5s model through the processed BDD100K data set; and using the trained YOLOv5s model to identify the vehicle in the target picture. According to the vehicle identification method based on the improved YOLOV5s model, the precision and sensitivity in detection under the complex illumination condition can be improved.

The utility model discloses a simulation multi-string battery pack monomer output circuit, which relates to the technical field of energy storage system detection and comprises a voltage reduction module and a plurality of simulation monomer cell voltage circuits connected in series. The voltage reduction module is used for reducing voltage of an external test power supply to supply power to the simulation single cell voltage circuit; the single cell voltage simulation circuit comprises an isolation power supply module and a reference power supply module; the isolation power supply module supplies power to the reference power supply module. The reference power supply module is used for simulating voltage output of the single cell; the reference power supply modules are connected in series, and the analog cells are connected in series. The circuit is applied to a BMS circuit test, simulates a battery pack to output a group of high-precision battery cell voltages, and compares the voltages acquired by the BMS with an output standard voltage to confirm whether a sampling error meets a standard or not, so that the performance of an AFE chip of the BMS and a related acquisition circuit can be effectively verified before leaving a factory, and the quality of a shipment product is ensured.

The present invention discloses a scene-based abnormal navigation data extraction method and test system, which classifies video navigation data into scenes and extracts abnormal data for each key scene, thereby completing the extraction of abnormal navigation data in different key scenes, ensuring the pertinence of test data, improving test efficiency, and verifying the performance of the vehicle navigation system in different key scenes.

The application discloses an interpretable analysis and decision sharing verification method and system for a colorectal cancer prognosis model, and relates to the field of medical artificial intelligence interpretability. The method comprises the following steps: performing gradient weighted class activation mapping analysis on the prognosis model to generate an image heat map; calculating the contribution degree of multi-modal features by using a SHAP interpreter; constructing an integrated visualization interface to present the patient data, model prediction and the above-mentioned explanation results to doctors; the doctors perform independent risk assessment based on the interface information; and finally, the decisions of the doctors and the model are compared to evaluate the auxiliary performance of the model. Through multi-level explanation and innovative doctor-model decision sharing verification mechanism, the transparency and clinical credibility of the complex AI prognosis model are significantly improved, the value of time series data in dynamic risk assessment can be verified, and the clinical landing application of the AI model is effectively promoted.

The application discloses a kind of infectious disease epidemic period short-term power load prediction method and device, by constructing including different geographical area power load data, time information, weather data and mobile data knowledge base, with the knowledge base trained migration deep learning model, the input of the migration deep learning model is the time information, weather data and mobile data of different geographical area, the output of the migration deep learning model is the short-term power load prediction result of different geographical area, in training with depth reinforcement learning to determine the optimal hyperparameter of the migration deep learning model shared weight layer, with the migration deep learning model of optimal hyperparameter trained to carry out power load prediction.The application can improve prediction accuracy, and overcome the problem of limited mobile data related to infectious disease epidemic.

This invention discloses a weightlessness simulation exercise aid device, relating to the field of fitness equipment technology. Specifically, it includes: a support part; a frame for fixing the fitness equipment, and a third movable frame that can move freely in the XY plane is provided inside the frame. The support part is slidably mounted on the third movable frame along the Z direction, and a floating lifting cylinder is provided inside the third movable frame to inhibit the sliding of the support part. This weightlessness simulation exercise aid device separates the weightlessness aid from the fitness equipment, allowing the fitness equipment to be used independently in space. The weightlessness aid part can be used to verify the performance of other space fitness equipment. Moreover, by using a floating support part, it can meet the needs of users to exercise in positions other than lying down, thereby solving the problem of limited usage scenarios.

The embodiment of the invention relates to the technical field of image processing and the related technical field, and particularly discloses an infrared flight target image generation method and device, equipment and storage. According to the infrared flight target image generation method, device, equipment and storage, a visible light flight target real image or a physical simulation image is converted into an infrared flight target image, and the infrared flight target image generation method comprises the following steps that firstly, a training sample set is obtained, and the training sample set comprises a background and a flight target visible light source domain image; afterwards, the source domain image is input into an end-to-end network, which mainly comprises a content mapping module and a color perception space. And multi-scale extraction of target texture details is realized through content information coding. And finishing up-sampling reconstruction in combination with the pattern coding information. According to the method, the simulation generation quality of the infrared flying target can be effectively improved, and the background is not influenced by noise. Meanwhile, the generated infrared flying target can be fused with multiple backgrounds such as a mountain forest, and the coverage range of a simulation scene is expanded.

The present application discloses a radiation source simulation method, device and medium based on three-dimensional sorting, and relates to the field of radiation simulation technology. Applied to a radiation source simulation device, the radiation source simulation device includes a scene simulation module, a radiation source generation module, an antenna array module and a turntable module, and the method includes: the scene simulation module creates electromagnetic scene parameters according to the radiation source position and the radiation source motion parameters; the radiation source generation module performs scene solution on the electromagnetic scene parameters to obtain the radiation source signal; the radiation source signal is sorted by a three-dimensional sorting algorithm to obtain the sorting information, and is allocated to the corresponding signal channel; the antenna array module rotates the signal channel to the corresponding angle according to the sorting information. The present application implements the three-dimensional sorting algorithm to allocate the radiation source through the above method, and simulates the radiation source signal from three dimensions: time domain, frequency domain and spatial domain to make the simulated scene more realistic.

The invention provides a photovoltaic module connector testing device and method, and belongs to the technical field of photovoltaic module performance test.The photovoltaic module connector testing device comprises a testing water tank, a jacking support, an upper fixing piece and a lower fixing piece, and a temperature controller used for adjusting the water temperature is arranged in the testing water tank; the jacking support comprises lifting stand columns symmetrically arranged on the two sides of the testing water tank and a cross beam connected between the lifting stand columns. The cross beam is positioned right above the test water tank; the upper fixing piece is arranged on the cross beam and is used for fixing a positive electrode cable; the lower fixing piece is arranged at the bottom of the test water tank and used for fixing a cathode cable; the lower fixing piece is located under the upper fixing piece, so that the connecting line of the lower fixing piece and the upper fixing piece is perpendicular to the cross beam. The device can effectively simulate the insulation performance and the electric conduction capability of the photovoltaic module connector in the outdoor application environment process, and achieves the verification of the comprehensive performance of the photovoltaic module connector.

The invention discloses a test method and device for an automatic driving decision-making system and electronic equipment. The method comprises the following steps: acquiring initial capture information collected by a target vehicle in a driving process; based on the initial capture information, generating a target driving track matched with the preset driving scene through an automatic driving decision-making system carried on the simulation equipment; determining a plurality of track data matched with the preset driving scene in the target driving track; and testing the automatic driving decision-making system based on the multiple pieces of trajectory data to obtain a test result of the automatic driving decision-making system. According to the invention, the technical problem of low efficiency of testing the automatic driving decision-making system in the prior art is solved.

The application relates to a power charging pile data security protection risk assessment method, which comprises the following steps: determining the working state of a charging pile as a charging test mode, testing and charging the charging pile, and obtaining test power data; dividing a preset historical time period into a first historical time period and a second historical time period, and respectively obtaining charging power data in the first historical time period and the second historical time period; obtaining historical power data according to the charging power data in the first historical time period and the second historical time period; obtaining a historical difference factor according to the difference between the test power data and the historical power data, obtaining a rated difference factor according to the ratio of the test power data to preset rated power data of the charging pile, and obtaining a risk assessment value according to the historical difference factor and the rated difference factor; and determining the danger level of the charging pile according to the risk assessment value and a preset risk interval. Therefore, the safety and reliability of the charging pile are more comprehensively improved according to differentiated historical data and rated data.

The invention belongs to the field of power systems and automation thereof, and provides a power grid dispatching automatic control software quality control method, system and device and a medium, and the method comprises the steps: obtaining software verification resource data, power grid resource data and version information; respectively carrying out software quality verification, power grid simulation verification and version consistency verification on the obtained software verification resource data, power grid resource data and version information to obtain verification results; and uploading the verification result to a preset evaluation unit, and outputting a quality control measure according to an evaluation result. According to the power grid dispatching automatic control software quality control and evaluation system provided by the invention, the quality control and evaluation of the whole process from research and development to operation of the automatic control software are realized by integrating a plurality of modules such as quality verification and evaluation, version control, qualification authentication and the like.

The invention discloses an emergency buoy equivalent loading device and method, and the device is used for simulating the mechanical environment of an emergency buoy under the conditions of forced landing, landing, immersion and dragging through equivalent loading, and comprises a simulation cabin section, an emergency buoy, a net bag, a cable-stayed belt, a three-coordinate positioning mechanism and a six-component force sensor, the simulation cabin section is used for simulating a real installation cabin section of the emergency buoy, and the emergency buoy is installed on the simulation cabin section; the net bag is used for attaching and wrapping the inflated and formed emergency buoy, and the inclined pull belts are connected to the net bag and distributed in the upper area of the inflated and formed emergency buoy; the three-coordinate positioning mechanism can move in three axial directions, the six-component force sensor is installed at the transmission tail end of the three-coordinate positioning mechanism, the inclined pull belts are gathered and connected to the six-component force sensor, and the three-coordinate positioning mechanism is used for adjusting loads applied to the emergency buoy by the inclined pull belts according to feedback of the six-component force sensor. According to the invention, the mechanical environment of the emergency buoy under the conditions of forced landing, landing, immersion and dragging can be simulated through equivalent loading.

The application provides a kind of support extended vehicle-mounted multi-channel camera simulation method and system.Method includes: obtaining specified picture or video data, generating the original picture data of each frame, and according to the format of PPI, it is packed into PPI data format, and the ECC and CRC data required for each line are calculated;According to the resolution size of each camera, the required simulation simulation platform memory space is generated;The generated PPI, ECC and CRC data are injected into the memory space;According to the output state of the platform, update the data in the memory space to the next frame data during frame blanking;Using the PPI format module of the platform, according to the configuration of each channel, the data is divided into different Lane according to PPI format, and is output to CSI2 HOST according to PPI format.The application can simulate different types of cameras and their parameters.

The application discloses a kind of seamless positioning methods of quadrotor unmanned aerial vehicle based on multi-source fusion, belong to unmanned aerial vehicle positioning technical field.The application according to the position accuracy factor of GNSS divides positioning area into indoor area and outdoor area, uses VIO positioning mode in indoor;In outdoor, it uses the GNSS / VIO loose coupling positioning mode based on federal Kalman filter, first, in the sliding window, the idea of time series difference is used to calibrate the external parameter of GNSS subsystem and VIO subsystem online, realize real-time spatial alignment, then use federal Kalman filter to fuse positioning information.Simultaneously, the smooth switching scheme of positioning system is designed, so that when the positioning area changes, the system can accurately identify and smoothly transition.The application is proposed, enhances the high-precision positioning ability of quadrotor unmanned aerial vehicle in complex environment, provides strong three-dimensional perception solution for the vertical application of unmanned aerial vehicle in low-altitude economy.

The invention provides a dynamic complex electromagnetic environment construction system, and the system comprises an upper computer which is used for deploying aviation equipment which generates electromagnetic signals in a task scene, and carrying out the simulation through controlling the electromagnetic signal parameters of the aviation equipment, and generating situation information; the lower computer is used for acquiring the situation information, performing data analysis and mapping on the situation information to generate a data stream, acquiring an interrupt signal fed back by the control module, and sending the data stream to the control module at a preset time interval according to the interrupt signal; the control module is used for acquiring the data stream and converting the data stream into a control signal for controlling the baseband board and / or the radio frequency module; the baseband board is used for simulating a radar signal pattern of the corresponding radar in real time according to the control signal and converting the radar signal pattern into a corresponding intermediate frequency signal; and the radio frequency module is used for acquiring the control signal and the intermediate frequency signal, and generating a radio frequency signal containing various radar signals according to the control signal and the intermediate frequency signal so as to realize simulation of the dynamic complex electromagnetic environment.

The application discloses a kind of reliability test method and test system of display panel, comprising: at least two display panels to be tested are placed on bearing substrate;Obtain the test area of display panel to be tested;According to test area, set first preset test parameter, and according to first preset test parameter, obtain first threshold voltage test value;Set first preset threshold voltage range;According to first threshold voltage test value and first preset threshold voltage range, obtain the performance test result of display panel to be tested;According to test area, set second preset test parameter, and according to second preset test parameter, obtain threshold voltage difference value;Set second preset threshold voltage range;According to threshold voltage difference value and second preset threshold voltage range, obtain the life test result of display panel to be tested;According to performance test result and life test result, judge the reliability of display panel to be tested, guarantee the reliability of device in display panel, guarantee the use effect of display panel.

The application relates to the field of spacecraft propulsion technology, in particular to a continuous adjustable electric propulsion testing method and device, the method comprising setting a test instruction change period synchronized with a satellite orbit period; constructing an atmospheric resistance interference model changing with an orbit phase and converting the atmospheric resistance interference model into a dynamic thrust demand benchmark; generating at least one dynamic thrust instruction in a sine wave, a triangular wave, a step signal or a composite waveform; using a three-dimensional interpolation matrix to solve power and gas supply parameters in real time and driving a thruster to perform wide-range dynamic adjustment; and evaluating dynamic tracking performance based on a root mean square error and a frequency response characteristic index. The application realizes high-fidelity ground reproduction of a complex interference environment of a satellite in orbit, overcomes the limitations of existing static tests and single working conditions, and provides a scientific and effective testing scheme for dynamic performance verification of a continuous adjustable electric propulsion system.

This invention discloses a load cell, method, and electronic device for testing vehicle controllers. The load cell includes: a communication device for acquiring test requirement information and hardware parameter information of the vehicle controller to be load tested; a test environment simulation device connected to the communication device for constructing a simulated environment for load testing of the vehicle controller based on the test requirement information and hardware parameter information; an information acquisition device connected to the vehicle controller for acquiring operational status information generated by the vehicle controller during operation in the simulated environment; and a controller connected to the information acquisition device for performing load testing on the vehicle controller based on the operational status information. This invention solves the technical problem of low efficiency in load testing of vehicle controllers in related technologies.

The invention relates to the technical field of electrochemical testing, in particular to a solid oxide battery SOC (State of Charge) test board. The electric pile is placed in a hearth of the hot box, a cooling system and a servo system are installed on the supporting frame, and the cooling system is connected with the servo system; an oxygen electrode preheater is mounted on the oxygen electrode gas inlet pipeline; the hydrogen electrode gas inlet pipeline comprises a plurality of gas inlet pipelines and a water vapor system, the mixing tank is mounted on the hydrogen electrode gas inlet pipeline, the gas inlet pipelines and the water vapor system are respectively connected with the mixing tank, and a hydrogen electrode preheater is mounted on a pipeline for connecting the mixing tank and the galvanic pile; the air outlet end of the oxygen electrode air outlet pipeline is communicated with air, and an oxygen electrode condensation water segregator is mounted on the oxygen electrode air outlet pipeline; a hydrogen electrode condensation water segregator and a drainage system are installed on an oxygen electrode gas outlet pipeline, a cooling machine is arranged between the oxygen electrode condensation water segregator and the hydrogen electrode condensation water segregator, the integrated design is achieved, and the testing efficiency and reliability are improved; the test environment is accurately controlled, and the accuracy and repeatability of the test result are improved.

The embodiment of the application provides a test method and system of a compulsory parent node based on a Mesh network, the method comprises the following steps: defining a topology structure of the Mesh network based on a test requirement, the topology structure containing an association list of a child node and a target parent node; extracting configuration information of each child node, generating a configuration instruction based on the configuration information, and enabling the child node side to establish a connection relationship with the target parent node based on the configuration instruction; checking based on a connection result periodically fed back by the child node, generating a health state level corresponding to each link, and generating a corresponding response strategy according to different health state levels; executing a corresponding test case based on the test requirement, and recording test data; after receiving a test requirement update instruction, determining a change mode based on the update instruction, modifying a parent node configuration of the child node based on the change mode, recording a change time stamp, and determining a dynamic response capability of the child node.