20 results about "Closed loop testing" patented technology

This invention discloses a vehicle infotainment system testing method. By having a controller uniformly receive modal simulation parameters, generate precise multimodal interaction commands, and coordinate the synchronous actions of the multimodal interaction simulation device and the audio / video acquisition device, a fully automated closed-loop testing process is constructed. This application fundamentally eliminates the randomness and uncertainty caused by manual operation. Since the test input commands (such as voice content, touch coordinates, and timing) are precisely reproduced by the device according to preset parameters, and the entire execution, acquisition, and judgment process is automatically driven by the controller, it ensures that the test conditions, execution steps, and triggering logic remain consistent at any time and for any number of tests. This application's embodiments make performance test results (such as response latency) objectively comparable, providing a reliable and consistent technical foundation for accurately evaluating vehicle infotainment system performance and identifying performance regression between versions.

The application provides a multi-sensor data motorized spindle comprehensive test system and method, and belongs to the technical field of equipment detection, and comprises a multi-sensor acquisition module, an upper computer data processing module, a driving control module and the like, wherein the multi-sensor acquisition module is used for acquiring real-time data and uploading the real-time data to the upper computer data processing module; the upper computer data processing module is used for constructing a motorized spindle global temperature field to obtain a theoretical thermal elongation, analyzing a vibration frequency spectrum and identifying an inherent frequency, comparing and analyzing an actual thermal elongation with the theoretical thermal elongation, analyzing a coupling influence relationship of a pre-tightening force, a rotating speed and a temperature, and generating a test result according to analysis results; and the driving control module is used for generating a dynamic working condition optimization adjustment instruction based on the test result generated by the upper computer data processing module, responding and adjusting a working condition in real time according to the instruction, continuously collecting working condition data after optimization, and forming a closed-loop test. The application can not only accurately simulate dynamic changes of the pre-tightening force under actual working conditions, but also dynamically adjust a test working condition based on real-time analysis results.

The application discloses an automatic driving performance improvement test system based on reinforcement learning and belongs to the technical field of automatic driving.The application regards a vehicle to be tested as a host vehicle and defines a closed-loop test mechanism comprising interactive sampling, closed-loop feedback calculation, host vehicle performance evolution and traffic vehicle confrontation strategy updating.A host vehicle performance evolution module is based on a closed-loop feedback signal, a CARE robust enhancement module and a SCALE continuous learning module are constructed, so that training explicitly focuses on long-tail high-risk samples and inhibits catastrophic forgetting.A traffic vehicle confrontation strategy module adopts a multi-agent strategy with parameter sharing, designs a CAGE confrontation generation strategy, introduces an AIARM confrontation strength adaptive adjustment mechanism, and dynamically generates a confrontation scene that evolves with the host vehicle capability under the feasibility constraint.The application realizes continuous capability improvement of an automatic driving system in a long-tail risk scene, and effectively enhances the robustness and safety of the system in a complex interactive environment.

This invention discloses an automated testing method and system for automotive electronic control units (ECUs), relating to the field of automotive electronics testing technology. The method includes: parsing test requirements to obtain a test case set containing operation sequences, trigger conditions, and expected results; converting the test case set into an executable script through an automated testing platform programming interface; injecting dynamic test parameters to construct a closed-loop test environment matching the script; executing the script in the closed-loop environment, synchronously collecting time-stamped test data, and comparing it with the expected results in real time to obtain verification results; analyzing the data and verification results to generate a structured test report. This invention also provides a corresponding system for implementing the above method. This invention achieves fully automated closed-loop ECU testing, significantly improving testing efficiency, compatibility, and result accuracy, reducing testing costs, and meeting the compliance and traceability requirements of automotive electronic functional safety testing.

The application discloses a kind of pressurized water reactor nuclear power plant control system set value decision method and system, belong to nuclear power plant intelligent control technical field.The method includes: each key control loop constructs single-purpose intelligent agent of responsibility, limits its observation space and sets output as set value increment;DDPG algorithm is configured for intelligent agent on high-precision simulation platform, mixed reward function is constructed and safety constraint is set, and optimized decision strategy is obtained after interactive iteration training;After verifying the performance of intelligent agent through multi-condition closed-loop test, it is integrated into actual control system, dynamically adjusts set value in transient condition and guarantees safety through output limiting, while establishing intelligent agent maintenance and retraining mechanism.The application reduces the learning difficulty by single task decoupling, realizes smooth and accurate control relying on continuous action space algorithm, and greatly improves the automation level, disturbance rejection and intrinsic safety of pressurized water reactor startup process.

The application discloses an automatic driving performance improvement test system based on reinforcement learning and belongs to the technical field of automatic driving.The application regards a vehicle to be tested as a host vehicle and defines a closed-loop test mechanism comprising interactive sampling, closed-loop feedback calculation, host vehicle performance evolution and traffic vehicle confrontation strategy updating.A host vehicle performance evolution module is based on a closed-loop feedback signal, a CARE robust enhancement module and a SCALE continuous learning module are constructed, so that training explicitly focuses on long-tail high-risk samples and inhibits catastrophic forgetting.A traffic vehicle confrontation strategy module adopts a multi-agent strategy with parameter sharing, designs a CAGE confrontation generation strategy, introduces an AIARM confrontation strength adaptive adjustment mechanism, and dynamically generates a confrontation scene that evolves with the host vehicle capability under the feasibility constraint.The application realizes continuous capability improvement of an automatic driving system in a long-tail risk scene, and effectively enhances the robustness and safety of the system in a complex interactive environment.

The application discloses an automatic driving dangerous scene generation method and system, which is an automatic driving dangerous test scene generation method based on human driving accident data to construct a risk latent variable space and optimize a background vehicle state by using the space. Embodiments of the application realize controllable, interpretable and high-true dangerous scene generation by modeling a latent space of risk behavior characteristics and combining a motion prediction model to perform target state optimization search on the background vehicle, and are suitable for closed-loop testing, robustness verification and risk assessment of an automatic driving system.

The application discloses a chemical reaction system multi-physical field semi-physical simulation device and method, and belongs to the field of chemical testing and simulation. The device contains a parameterized model construction, a real-time simulation environment, a semi-physical simulation algorithm and a parameter correction calculation module, can construct a reactor multi-parameterized mathematical model, realizes one-dimensional / three-dimensional model on-demand calling and correction, accesses actual hardware such as DCS / PLC to complete virtual-real real-time closed-loop testing; the method is to construct a parameterized model containing an Arrhenius law kinetic equation, after one-dimensional / three-dimensional joint simulation prediction, the model parameters are corrected by using the measured data of hardware-in-the-loop testing. The application integrates multiple simulation technologies, solves the problems of high risk and high cost of chemical experiment, low precision of pure virtual simulation and inability of real-time optimization, can safely simulate extreme working conditions, the prediction accuracy of main product yield is more than 96%, the hot spot temperature error is less than or equal to 3 DEG C, improves the verification precision of reactor design and control strategy, and reduces the research and development risk.

The application discloses a multifunctional test system and method for a repeater. The system comprises: an analog telephone test module for simulating telephone off-hook, telephone on-hook or telephone access working conditions; a Type-C double-sided test module for simulating Type-C interface normal insertion or reverse insertion working conditions; a PD trigger module for outputting different grades of PD working voltage of the repeater to simulate fast charging working conditions; an analog load test module for simulating load working conditions; and a control module for controlling the analog telephone test module, the Type-C double-sided test module, the PD trigger module and the analog load test module to test the repeater respectively. The application reproduces the real working conditions of telephone off-hook, on-hook and access, combines the simulation of Type-C interface normal insertion and reverse insertion and the output of PD fast charging voltage, and controls multiple modules cooperatively, so as to fill the blank of the single function and high cost of the traditional test platform; the full-automatic closed-loop test improves the test efficiency, avoids the error of manual operation, and ensures the accuracy and reliability of test data.

The utility model provides a kind of for ship power positioning system controller's semi-physical testing device, comprising: host computer module, ethernet switch, real-time simulation module, power module, communication module, I / O module and analog load cabinet.Host computer module is used for test management, working condition configuration and data monitoring;Real-time simulation module is responsible for running ship movement and ocean environment model, communication module, I / O module are used for the generation and acquisition of multiple physical signals;Power module provides stable power supply with timing controllable;Analog load cabinet is used to simulate the load characteristics of actuator such as propeller.Each module is interconnected through standard interface, constitutes closed-loop test system, can simulate the ship movement and sensor signal under complex sea conditions, supports hardware-level fault injection, realizes the comprehensive verification of power positioning controller function, performance and reliability, with high simulation reality, comprehensive test coverage, good safety, strong scalability and other advantages.

This invention relates to the field of satellite simulation and testing technology, specifically to a multi-satellite parallel testing system for attitude and orbit control systems. The system includes a signal transfer unit subsystem, an I / O interface subsystem, a multi-core real-time simulator subsystem, a real-time simulation main control subsystem, a database server subsystem, and a power supply module subsystem. The multi-core real-time simulator connects to multiple I / O interface chassis via PCIe expansion components, with each chassis corresponding to the test resources of one satellite. The real-time simulation main control subsystem deploys the dynamic simulation models of multiple satellites onto different processor cores of the simulator, achieving multi-core distributed parallel simulation. Each satellite's onboard computer establishes a real-time data interaction link with its corresponding dynamic simulation model, forming a multi-satellite parallel real-time closed-loop testing state. This system solves the problem that traditional single-satellite testing systems cannot meet the requirements of mass production and parallel testing, offering advantages such as high testing efficiency, low hardware cost, and strong scalability.

This invention belongs to the field of electricity market trading and virtual power plant operation control technology. It discloses a rule-driven, fast-response trading strategy generation and simulation verification system for virtual power plants. This invention inputs the strategy into a verification environment that highly simulates the real market environment for closed-loop testing and performance evaluation, forming an iterative closed loop of "generation-verification-optimization". The system preferably combines a fast-solution variant of mixed-integer linear programming (MILP) with a rule engine, significantly improving response speed while ensuring strategy quality. By injecting domain knowledge into the decision-making process in the form of rules, combined with a fast optimization algorithm, this invention effectively solves the problems of slow response speed and poor interpretability of traditional methods, significantly improving the trading returns, strategy feasibility, and real-time response capabilities of virtual power plants participating in the electricity market.

This invention provides a closed-loop testing and verification method for vehicle-mounted network nodes, belonging to the field of vehicle electronic system testing technology. The method includes: executing enhanced test cases and simultaneously monitoring the communication status of the CAN bus during environmental and electrical tests of the vehicle-mounted network node; analyzing fault data when a communication fault is detected to determine the fault mechanism and the sensitive stress conditions that trigger the fault; and formulating and verifying countermeasures: formulating hardware countermeasures based on the fault mechanism and verifying the effectiveness of the hardware countermeasures in tests that reproduce the sensitive stress conditions. This invention solves the problems of difficult fault reproduction, ambiguous fault location, and insufficient countermeasure verification in traditional testing, significantly improving the communication reliability and first-time vehicle installation success rate of vehicle-mounted network nodes.

Provided are a testing system and a testing method for supercritical carbon dioxide continuous flow corrosion. The testing system includes a gas supply system and a closed-loop testing system loop. The testing system loop includes: a circulation pump providing a power of boosting and flowing for a circulation of liquid carbon dioxide in the testing system loop; a flow meter used to measure a flow rate of the liquid carbon dioxide; a heater used to transform the liquid carbon dioxide into a carbon dioxide gas; a test section used for storing a sample and performing a continuous corrosion test; a regenerator-connected used to exchange heat with the tested carbon dioxide gas; a condenser used to condense the heat-exchanged carbon dioxide gas; and a circulation tank, used to provide the liquid carbon dioxide for the testing system loop, recycle the liquid carbon dioxide, and form a closed-loop testing system loop.

The application discloses an automatic driving debugging calibration simulation test method and device and a storage medium. The method comprises the following steps: in response to an automatic driving test instruction initiated by a user, generating simulation perception data based on a virtual sensor model and a virtual chassis model driven by the automatic driving test instruction; performing a closed-loop simulation test on the simulation perception data by using a preset perception algorithm, a planning decision algorithm and a control algorithm; recording trajectory data, control data and perception output data in the closed-loop simulation test process, quantitatively evaluating the trajectory data, the control data and the perception output data to obtain quantitative evaluation results; calculating a multi-dimensional calibration score according to the quantitative evaluation results, and generating a multi-dimensional calibration effect report based on the multi-dimensional calibration score. The application realizes the technical effect of efficient, safe and low-cost virtual verification of calibration quality by mapping real calibration parameters to a simulation environment and performing closed-loop testing and quantitative scoring.

The present application relates to the field of rail transit technology, in particular to a rail transit electronic device vibration-temperature and humidity-electromagnetic comprehensive reliability test method, which is characterized by setting a material aging attenuation model, dynamically correcting test parameters in combination with the characteristics of each stage of the full life cycle of the device, solving the technical pain point that the existing test is only based on new equipment and cannot predict the reliability in the later stage, achieving full coverage of the reliability test of the full life cycle of the device, and the test result is more in line with the actual operation demand, the present application sets up a temperature and humidity gradient precision control and anti-condensation self-adaptive adjustment cooperative mechanism, simulates the local temperature and humidity environment where each core component of the device is actually located, effectively avoids the condensation risk, solves the problem of uniformity and easy condensation of the existing temperature and humidity test, improves the authenticity of the test scene and the accuracy of the test data, and builds a closed-loop test logic of "data acquisition-model construction-parameter correction-loading test-model calibration".

The application relates to a corrosion deposition bracket system of a live conductor at high temperature, which comprises a top fixed connection mechanism, a sample fixing and testing mechanism and a temperature control and testing mechanism. The top fixed connection mechanism comprises a fixed plate and an external connecting plate. A high-temperature sample is placed in a glass container and is placed at the bottom of the fixed plate. A flow between a sample gas and a sample liquid space is realized through an external pumping system. The sample fixing and testing mechanism is provided with four groups of closed-loop testing systems and is arranged at the bottom of the fixed plate to extend into the glass container to provide sample fixing and connecting testing systems. The temperature control and testing mechanism is arranged at the bottom of the fixed plate to extend into the glass container to collect and control the temperature in the testing process. The application can simply and efficiently carry out corrosion testing and deposition testing of a live conductor in a cooling oil system, can provide guidance for overall design, durability and reliability of an oil-cooled motor, can avoid failure of a new energy automobile or other large motors or hybrid systems, and can save maintenance cost.

This invention discloses a navigation simulation method for ground testing of autonomous orbit maintenance of small satellites using electric propulsion. The method receives satellite time, attitude control, electric propulsion thrust broadcasts, and GNSS positioning broadcast polling from the satellite bus. Based on the received broadcast data, it performs real-time orbit dynamics simulation calculations to recursively calculate the satellite orbit. Navigation parameters are calculated based on the recursion results. In response to the GNSS positioning broadcast polling, a GNSS positioning broadcast data frame simulating an onboard navigation receiver is generated based on the navigation parameters and sent to the satellite bus. This invention achieves real-time closed-loop updates of orbit navigation information based on the satellite's orbit maintenance status by acquiring the satellite's orbit maintenance status in real time and simulating a navigation receiver response. This solves the problem of information loss after the initial orbit maintenance in traditional open-loop testing, enabling realistic and effective closed-loop testing of the entire autonomous orbit maintenance process using electric propulsion. It also has the advantages of low cost and easy integration.

The application provides a test system of a drive-by-wire chassis, comprising a simulation driver, an industrial computer and a drive-by-wire chassis; the simulation driver and the drive-by-wire chassis are in communication connection, and the industrial computer is in communication connection with the simulation driver; the drive-by-wire chassis is used for receiving a simulation working condition, performing a control operation corresponding to the simulation working condition, and generating a corresponding vehicle state signal; the simulation driver is used for acquiring the vehicle state signal and performing vehicle state simulation according to the vehicle state signal; and the industrial computer is used for collecting physiological parameters of personnel on the simulation driver and performing dizziness degree evaluation based on the physiological parameters. Thus, the dynamic response of the drive-by-wire chassis, the somatosensory reproduction of the simulation driver and the real-time physiological feedback of the passenger are deeply integrated, so that a "control-sensing-evaluation" closed-loop test mechanism can be constructed, and the consistency of the test result and the actual driving experience is significantly improved.