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Progressive LiDAR Adaptation for Road Detection

IEEE/CAA Journal of Automatica Sinica 2019年第3期6卷 693-702页

作者： Zhe Chen Jing Zhang Dacheng Tao IEEE the UBTECH Sydney Artificial Intelligence Centre and the School of Computer Science Faculty of Engineering and Information Technologies University of Sydney the School of Automation Hangzhou Dianzi University the University of Technology Sydney

Despite rapid developments in visual image-based road detection, robustly identifying road areas in visual images remains challenging due to issues like illumination changes and blurry images. To this end, LiDAR sensor data can be incorporated to improve the visual image-based road detection,because LiDAR data is less susceptible to visual noises. However,the main difficulty in introducing LiDAR information into visual image-based road detection is that LiDAR data and its extracted features do not share the same space with the visual data and visual features. Such gaps in spaces may limit the benefits of LiDAR information for road detection. To overcome this issue, we introduce a novel Progressive LiDAR adaptation-aided road detection(PLARD) approach to adapt LiDAR information into visual image-based road detection and improve detection performance. In PLARD, progressive LiDAR adaptation consists of two subsequent modules: 1) data space adaptation, which transforms the LiDAR data to the visual data space to align with the perspective view by applying altitude difference-based transformation; and 2) feature space adaptation, which adapts LiDAR features to visual features through a cascaded fusion structure. Comprehensive empirical studies on the well-known KITTI road detection benchmark demonstrate that PLARD takes advantage of both the visual and LiDAR information, achieving much more robust road detection even in challenging urban scenes. In particular, PLARD outperforms other state-of-theart road detection models and is currently top of the publicly accessible benchmark leader-board.

关键词： Autonomous driving computer vision deep learning LiDAR processing road detection

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Integration of a DC-Based Power Supply System into a Residential

Integration of a DC-Based Power Supply System into a Residen...

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2024 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2024

作者： Kudryavtsev, Artem Pavlov, Ivan Zatsepina, Violetta Automation And Computer Science Faculty Lipetsk State Technical University Lipetsk Russia

ISBN: (纸本)9798350395013

At the moment, power supply systems without centralized power supply, using autonomous sources, are becoming increasingly popular. In this paper, the issue of the effectiveness of the introduction of a DC-based power supply system generated by alternative energy sources in the framework of domestic use is analyzed. The article presents various models of hybrid microgrids operating on direct and alternating current. The moment is considered with a decrease in the number of power conversion stages in the issue of switching to direct current with the possibility of reducing the price of power supplies used in electrical equipment, the main advantages of direct current are described. Using the example of a residential building, the question of the optimal voltage level, the number of photovoltaic plants used, and the type of consumers is analyzed. Possible converters and necessary batteries are considered, the difference between losses and voltage drop is calculated by calculation, and the fact of increasing the line capacity when switching to DC power is justified. © 2024 IEEE.

关键词： Housing

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The Soft Starting System for an Induction Motor with an Induction Resistance in the Wound Rotor Circuit

The Soft Starting System for an Induction Motor with an Indu...

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2019 International Multi-Conference on Industrial Engineering and Modern Technologies, FarEastCon 2019

作者： Meshcheryakov, V.N. Muravyev, A.A. Boikov, A.I. Pikalov, V.V. Automation and Computer Science Faculty Lipetsk State Technical University Lipetsk Russia

ISBN: (纸本)9781728100616

In the electric drive, made on the basis of an induction motor with a wound rotor (IM with WR), it is proposed to regulate the rotor current by means of a rectifier-inverter unit, while the rectifier input is connected to the rotor winding pins of the motor, and the output of the inverter based on IGBT transistors with reverse diodes - to frequency-dependent inductive-active resistance, a capacitive filter is included in the DC link. The electric drive system implements a soft start-up of an induction motor with a wound rotor with the ability to control and maintain a constant starting torque with the required acceleration. Such an electric drive system has been proposed to be used on metallurgical production conveyors, which often do not require speed control, but provide start-up modes with a given acceleration rate, including when the conveyor is fully loaded. The drive system combines some of the properties of the asynchronous valve cascade (AVC) and parametric control systems. The operation of the inverter control system is described, which realizes the stabilization of the rotor current of the induction motor by changing the frequency at the output of the inverter voltage as a function of the rectified current of the motor rotor. The frequency-dependent inductive-active resistance, called induction resistance, contains a massive magnetic core with three tubular rods connected by a yoke, on each of the rods is placed a single-layer phase winding. The wall thickness of the tubular rods does not exceed the depth of penetration of the electromagnetic field into the massive ferromagnetic material. The results of experimental studies of the frequency characteristics of induction resistance are presented. A mathematical model of the electric drive system has been developed, computer simulation of dynamic processes has been carried out using the MATLAB Simulink software package. The possibility of implementing the proposed method of controlling the process of starting

关键词： Timing circuits

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Indoor localization system based on low power Wi-Fi technology

Indoor localization system based on low power Wi-Fi technolo...

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2011 19th Telecommunications Forum, TELFOR 2011

作者： DobîrcǍ, A. Folea, S. VǍlean, H. Bordencea, D. Faculty of Automation and Computer Science Technical University of Cluj-Napoca Cluj Romania

ISBN: (纸本)9781457714986

Recently, a lot of localization systems have been studied. These systems are successfully used in many real-world applications as inventory management, asset tracking, location detection of products stored in a warehouse, location detection of medical personnel, patients or equipment in a hospital, and so on. For finding location of an object, a system using Tag4M devices is proposed in this paper. The localization is based on distance measurement using received signal strength indicator. The distances between the Wi-Fi tag and each access point are represented as circles having the centre in the access point locations which have known coordinates. The target's position is given by the point at the intersection of the circles. © 2011 IEEE.

关键词： Indoor positioning systems

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Power Consumption Analysis with Independent Component Analysis 4

Power Consumption Analysis with Independent Component Analys...

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4th International Conference on Control Systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2022

作者： Pavlov, Ivan Zatsepina, Violetta Lipetsk State Technical University Automation and Computer Science Faculty Lipetsk Russia

ISBN: (数字)9781665456593

ISBN: (纸本)9781665456593

This article presents a method for analyzing a time series of electricity consumption using Independent Component Analysis (ICA). With this method, it is possible to automatically identify and extract factors influencing electricity consumption individually and study their relationships on the daily consumption curve using profiles computed in parallel using ICA. ICA splits this profile into a group of components without losing representativeness of the data, providing a deeper understanding of electricity consumption to facilitate modeling and forecasting. © 2022 IEEE.

关键词： Electric power utilization

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Neural Network Speed Observers 1

Neural Network Speed Observers

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1st International Conference on Control Systems, Mathematical Modelling, automation and Energy Efficiency, SUMMA 2019

作者： Sinyukova, Tatyana Viktorovna Sentsov, Evgeny Viktorovich Sinyukov, Alexey Vladimirovich Automation and Computer Science Faculty Lipetsk State Technical University Lipetsk Russia

ISBN: (纸本)9781728149110

The observed tendency to reduce the size of devices leads to the development and research of sensorless control systems. Implementation of vector sensorless control systems of electric drives is possible using different approaches. The paper considers the advantages of systems with neurocontrollers in comparison with nonadaptive observers. © 2019 IEEE.

关键词： Neural networks

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Improving the Efficiency of Students' Education through the Study of Regulators Used in Lane Tracking Automatic Systems 3

Improving the Efficiency of Students' Education through the ...

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3rd International Conference on Technology Enhanced Learning in Higher Education, TELE 2023

作者： Sazonov, Ivan Kriven'kov, Timofey Mesherekov, Victor Ponomarev, Pavel Lipetsk State Technical University Automation and Computer Science Faculty Lipetsk Russia

ISBN: (纸本)9798350326567

The work discusses the issue of an automatic lane tracking system. Students studied controllers during the system modeling process. The system consists of multiple electronic components, including photodetectors, logic elements, and light emitters. An analysis of the shortcomings of the existing system was carried out. Mathematical models of the tracking system were developed and created using the Matlab Simulink software package. Studies were conducted on the system's performance with various controllers. The logarithmic amplitude frequency response of the existing closed-loop and open-loop lane tracking systems was compared. Students analyzed the logarithmic characteristics to enhance their knowledge. Transition characteristics of the lane tracking were demonstrated. A detailed description was provided to determine which system performs better in tracking the object. © 2023 IEEE.

关键词： Students

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Measurements of Insulation Parameter C3 on Installed, Faulted Line Bushings

Measurements of Insulation Parameter C3 on Installed, Faulte...

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2024 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2024

作者： Iskra, Pavel Zatsepina, Violetta Zatsepin, Evgeny Lipetsk State Technical University Automation And Computer Science Faculty Lipetsk Russia

ISBN: (纸本)9798350395013

The measuring test lead is an important part of high voltage bushings with capacitor-type insulation. The test lead is connected to the outer capacitor lining of the frame, dividing the input capacitance into two: C1 (pipe - last outer lining of the frame) and C3 (last outer lining of the frame - flange). For diagnostics of the in service condition of the input, it is sufficient to measure the insulation resistance R3, the capacitance C1 and the dissipation factor tgδl. The measured and corrected value tgδ1 is compared with the data of the acceptance test report. In the delivery condition, the obtained value tgδl should be close to the nameplate value. A significant difference of more than 3% between the capacitance value C1 and the value specified in the acceptance test report may indicate damage during transportation or installation, so that the input must not be put into operation. The value of the capacitance C3 depends on how the input is integrated. The article deals with the method of measuring the insulation parameter C3 at the installed, faulted line bushings. The confirmation of the normal contact of the outer lining of the hulls of the already installed line bushings is obtained. The conclusion contains conclusions on the results of measurements and recommendations to the equipment manufacturers to make changes in the operating manuals of the bushings. © 2024 IEEE.

关键词： Capacitance

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Research and analysis of a two-circuit and three-circuit system for automatic regulation of the thickness of a reversing cold rolling mill, PJSC 'Novolipetsk Metallurgical Plant' 18

Research and analysis of a two-circuit and three-circuit sys...

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18th International Scientific Technical Conference Alternating Current Electric Drives, ACED 2021

作者： Sinyukova, Tatyana Levin, Pavel Sinyukov, Alexey Automation and computer science faculty Lipetsk State Technical University Lipetsk Russia

ISBN: (纸本)9781665412483

Single-stand cold rolling mills are units involved in the complex technological process of manufacturing finished products of a metallurgical enterprise. The quality and demand for the finished product directly depends on the high-quality work of the mill. The control system applied at the mill directly affects the accuracy of its work. The study of the existing control system is aimed at identifying its shortcomings. The facility uses a two-circuit control system, the improvement of which is proposed by introducing a third circuit operating on the basis of data on the deviation in the deformation zone. © 2021 IEEE.

关键词： Cold rolling

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Methods for Reducing Electromechanical Oscillations in Conveyor Control Systems 1

Methods for Reducing Electromechanical Oscillations in Conve...

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1st International Conference on Control Systems, Mathematical Modelling, automation and Energy Efficiency, SUMMA 2019

作者： Sinyukova, Tatyana Viktorovna Gladyshev, Vladislav Evgenyevich Sinyukov, Alexey Vladimirovich Automation and Computer Science Faculty Lipetsk State Technical University Lipetsk Russia

The damping of electromechanical vibrations arising at metallurgical facilities is carried out using different approaches. The paper discusses methods of damping oscillations in the conveyor control system with scalar... 详细信息

ISBN: (纸本)9781728149110

关键词： Control systems

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