Вісники НТУ "ХПІ"

Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/2494


З 1961 р. у ХПІ видається збірник наукових праць "Вісник Харківського політехнічного інституту".
Згідно до наказу ректора № 158-1 від 07.05.2001 року "Про упорядкування видання вісника НТУ "ХПІ", збірник був перейменований у Вісник Національного Технічного Університету "ХПІ".
Вісник Національного технічного університету "Харківський політехнічний інститут" включено до переліку спеціалізованих видань ВАК України і виходить по серіях, що відображають наукові напрямки діяльності вчених університету та потенційних здобувачів вчених ступенів та звань.
Зараз налічується 30 діючих тематичних редколегій. Вісник друкує статті як співробітників НТУ "ХПІ", так і статті авторів інших наукових закладів України та зарубіжжя, які представлені у даному розділі.

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  • Ескіз
    Документ
    Modern approaches of high-voltage transmission lines monitoring
    (Національний технічний університет "Харківський політехнічний інститут", 2022) Honcharov, Yevhen; Kriukova, Nataliia; Markov, Vladyslav; Poliakov, Ihor
    Transmission lines require timely inspection and monitoring to prevent emergency situations during operation. System emergency situations as blackout are very undesirable, so they need their previous detection and prevention. Accordingly, this can be avoided by detailed monitoring the functioning of all elements of the power system. The directions of remote control for researching the operational state of electric power facilities through the use of special equipment, in particular aerial vehicles, have gained sufficient development. Possibilities of practical means of remote monitoring of power transmission lines are also considered. Due to their relatively inexpensive use and ease of operation, distant controlled aerial vehicles are an effective approach for surveying high-voltage power lines. A number of advantages of using distant controlled aerial vehicles are the extended functionality of monitoring quality provided by modern equipment. Functional analysis of modern on-board equipment indicates the possibility of detecting research objects on a real-time scale, due to the use of telemetry, satellite and combined television and thermal imaging systems, with the possibility of detailed observe. The most perspec-tive is the use of combined heat-television systems, which allow improving the technical characteristics of the surveillance system significantly. This method provides monitoring of heat losses, detection of overheated elements of transmission lines and assessment of the performance of elements. Such technology ensures more safer and timely detection of malfunctions, threats to operation and carrying out work on their elimination. In addition, the fields of application of distant controlled aerial vehicles as surveys for the design of energy systems are increasing.
  • Ескіз
    Документ
    Remote control system of stepper motor based on the ESP32 developer board
    (Національний технічний університет "Харківський політехнічний інститут", 2022) Xuan, Cheng; Verbytskyi, Ievgen
    The stepper motor is a unit of a control system to achieve the goal of convenient use and precise control, which greatly facilitates our life and improves the level of the modern high-tech industry. In particular, multiple stepper motors may be joined in a system and work together with a remote-control program, which greatly improves the flexibility and applicability of the equipment. In real life, multiple stepper motors are used together more often. For example, a 3D printer, using three stepping motors at the same time, the x-axis, the y-axis, and the z-axis, can determine the left side of the space and accurately print the 3D three-dimensional object we need. By adding a remote-control system, we can control the movement of the motor in real time and can replace humans to complete complex and high-precision work. For example, endoscopes are often used in medicine, when the endoscope needs to make micro adjustments in position, we can use remote control to make real-time adjustments. The project of using ESP32 to control multiple stepper motors and uses python language to write programs based on microPython firmware to realize remote control of multiple stepper motors is introduced. The speed and direction of the stepper motor can be adjusted and controlled by pulse signals. The clock system of ESP32 can generate pulse signal PWM, ESP32 comes with a WiFi module, which can support remote control. The speed of the stepper motor can be adjusted by adjusting the duty cycle of the PWM by the program. Combined with ESP32 products, the performance of this designed product can be stable and reliable. The clock system of ESP32 has multiple timers and with their use with the interrupt system, multiple stepper motors can be efficiently controlled simultaneously. And the WiFi module of ESP32 can realize remote control easily and conveniently. According to the principle of the stepping motor, the half-step control, and full-step control are realized. Additionally, a micro step mode with PWM signal with cosine function is designed to control the stepper motor. A user-friendly web application has been developed to control the system of four motors, allowing you to remotely control a four-engine system in a simple and convenient way.