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83results about How to "Reduced feedback time" patented technology

Steer-by-wire double-motor system based on driver behavior identification and yaw stability compensation strategy thereof

The invention discloses a steer-by-wire double-motor system based on driver behavior identification and a yaw stability compensation strategy thereof. The system comprises an acquisition unit, a central controller, a steering wheel assembly and a front wheel steering assembly; the compensation strategy of the steer-by-wire double-motor system is that: a predicted steering-wheel steering angle is obtained by driver behavior identification and a steering-wheel steering angle measured by a steering-wheel steering angle sensor, and is transferred to the central controller, a yaw angular speed gainand a lateral acceleration factor are integrated to obtain an ideal transmission ratio, and a relationship between the steering-wheel steering angle and an ideal input steering angle of a steering-angle motor is obtained and transferred to a steering angle motor controller so as to carry out open-loop control on the steering angle motor; then an ideal front wheel steering angle is obtained according to the steering-wheel steering angle and the ideal transmission ratio, an ideal yaw angular speed is obtained, a compensation torque of the system is obtained by a robust controller, and the compensation torque is transferred to a torque motor controller by a compensation control strategy so as to ensure rapid response performance of the system and driving stability in the driving process.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Real-time control system for graded remote control of unmanned vehicle

The invention discloses a real-time control system for graded remote control of an unmanned vehicle. The real-time control system comprises a control end, a vehicle end, a map management module, a driving control module, a stereoimaging module, an environmental perception information display module, a system control module, a behavior decision module, an environmental perception module, an environmental construction module, a value evaluation module and an intelligent system database, wherein the behavior decision module is divided into five grades; the environmental construction module interacts with the environmental perception module and the value evaluation module and predicts the result of program implementation of each task; the behavior decision module selects an optimal task plan according to the result of the program implementation of each task, predicted by the environmental construction module and cost effectiveness evaluated by the value evaluation module, and then issues subtasks to the next-grade behavior decision module for processing. The real-time control system has the advantages that multilevel cognitive planning ensures that the plan can be adequately recalculated; multilevel perception information ensures that a reaction behavior can make reasonable emergency response at a minimum feedback time delay and the like.
Owner:中科开元信息技术(北京)有限公司

Roller washing machine and water leakage judgement method

The invention relates to a roller washing machine and a water leakage judgement method. The roller washing machine comprises a casing with a front panel, a washing cylinder, a controller and a drainage device, and the washing cylinder, the controller and the drainage device are arranged in the casing. The front panel is provided with a recess used for mounting a door body, the center of the recess is provided with a clothes putting port communicated with the washing cylinder, the circumferential wall of the recess is provided with water leaking holes, a water receiver communicated with the water leaking holes is arranged in the casing, a water level detection device is arranged in the water receiver, the water receiver is provided with a draining mechanism, and the controller is connected with the water level detection device, and obtains water leakage information in dependence on the water level change in the water receiver, and executes a water leakage response measure corresponding to the water leakage information. By employing the roller washing machine and the water leakage judgement method, whether water is leaked in the door sealing position of the washing machine can be detected, and a water leakage response measure can be executed in dependence on the water leakage information.
Owner:QINGDAO HAIER DRUM WASHING MACHINE +1

Quantum chip feedback control method

The invention belongs to the field of quantum chip control, and in particular to a quantum chip feedback control method. The method comprises the following steps: a main control module controls a signal generation module to output a quantum bit control signal; a quantum bit makes response to the quantum bit control signal to change a logic state of the quantum bit; a quantum bit reading detectionmodule outputs a quantum bit reading detection signal; the quantum bit makes response to the quantum bit reading detection signal and outputs a quantum bit reading return signal carrying logic state information of the quantum bit; the main control module controls the quantum bit reading detection module to collect the quantum bit reading return signal and send the quantum bit reading return signalto the main control module at the same time, and the main control module processes the quantum bit reading return signal in real time to obtain the logic state of the quantum bit; and the main control module determines whether to adjust the quantum bit control signal according to the consistency of the logic state of the quantum bit and a preset logic state of the quantum bit. Under the assistance of the quantum chip feedback control method provided by the invention, the recycling of the quantum bit on a quantum chip can be achieved.
Owner:ORIGIN QUANTUM COMPUTING TECH (HEFEI) CO LTD

Intelligent inspection and safety monitoring early warning system and method based on mobile internet

The invention discloses an intelligent inspection and safety monitoring early warning system and a method based on mobile interconnection, and the system comprises a management PC terminal, a cloud server, and an inspection mobile terminal, and the management PC terminal and the inspection mobile terminal carry out the information interaction through the cloud server. The management PC terminal isused for formulating and pushing an inspection task; wherein the inspection mobile terminal is used for executing an inspection task and feeding back a task execution result, and the cloud server isused for storing related data of the management PC terminal and the inspection mobile terminal and completing personnel management, information integration, problem filing and monitoring and early warning functions. According to the system and the method, a mobile interconnection technology is integrated into a traditional inspection safety monitoring process, digitization and intellectualizationof inspection are realized, the inspection efficiency and quality are improved, the timeliness and accuracy of engineering safety monitoring and early warning are improved, and various requirements ofengineering safety monitoring and early warning can be met.
Owner:TIANJIN UNIV

Carrier tracking method and system supporting high dynamic

PendingCN112491431ATracking is stable and effectiveReliable observationsTransmission monitoringSatellite radio beaconingKaiman filterLoop filter
The invention relates to a carrier tracking method and system supporting high dynamic. The method comprises the following steps: processing a received digital intermediate frequency signal to generatean in-phase baseband signal and an orthogonal baseband signal; processing the in-phase baseband signal to obtain a despread in-phase signal, and processing the orthogonal baseband signal to obtain adespread orthogonal signal; processing the de-spread in-phase signal to obtain an accumulated in-phase signal, and processing the de-spread orthogonal signal to obtain an accumulated orthogonal signal; identifying the accumulated in-phase signal and the accumulated orthogonal signal to obtain a frequency difference and a phase difference; taking the frequency difference and the phase difference asobserved quantities of a Kalman filter, establishing a state equation and an observation equation of the phase and the frequency, and estimating the phase difference and the frequency difference; andfeeding back the output of the Kalman filter to the local carrier generator through the loop filter so as to adjust the local oscillator to have the same frequency and phase with the received signal.The method is beneficial to improving the system stability.
Owner:JIANGSU HENGTONG TAIHEZI TECH CO LTD +1
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