ELECTRONIC DEVICE FOR TRANSLATION OF TEXT INFORMATION IN MORSE CODE WITH LED INDICATION

The work is devoted to the development of an electronic device for translating text information into Morse code with LED indication. Light signals were used to transmit messages encoded with Morse code. In the process of work, an electronic module “Arduino Nano v.3.0” was designed, including a microcontroller that allows you to connect external devices via a standard USB bus, an LED, the operation of which can be controlled by using it for light transmission of information by Morse code. The electronic module used in this project includes a CH340G microcircuit designed to emulate the UART COM port on the computer's USB bus. To develop the program code for the electronic module “Arduino Nano” in this work, we used the standard software development environment Arduino IDE, which contains useful libraries. For a set of text information intended for transmission by Morse code, any standard program that controls the COM port can be used.

Stepper Motor Control System for XY Module for IC Production

The presented in the paper control system of the stepper motor of the two-coordinate printing module is developed on the basis of modern elements and allows you to control the stepper motor, providing the required shaft rotation speed and adjusting the number of rotation steps. This system realizes the processing of a moving object in several coordinates simultaneously without kinematic elements that convert rotary motion into linear, which makes it possible to speed up the time and accuracy of the processing tool. A forked optical sensor is used as workpiece position sensors. UART and USB bus are used for communication with the computer.

Loss Counter in Power Double Winding Transformers Implementing the Method of Conditionally Constant Coefficients in Online Mode Using the Information Platform

The article describes the developed loss counter in power double-winding transformers of distribution net-works. The principle of operation of the proposed measuring unit of the loss counter is considered on the exam-ple of one channel for measuring current and voltage in accordance with the above functional scheme. The ap-pearance and main characteristics of the loss counter are given. The main characteristics of the developed loss counter are confirmed by the adjustment Protocol based on the results of measurements in the FBU «Rostov CSM» and are at the level of existing characteristics of electric energy quality analyzers. The data measured and calculated by the microcontroller of the loss counter, necessary for the implementation of the method of conditionally constant coefficients, are transmitted over the USB bus to a single-Board computer. Using the de-veloped software written in the high-level General-purpose programming language Python, the formation and sending of data to the information platform Yandex.Cloud. The approbation of the operation of the loss coun-ter on the developed physical model «power transformer-asymmetric and non-sinusoidal load» and operating substations is shown. Thus, the developed loss counter can be used to calculate losses from higher harmonic components in power transformers by the method of conditionally constant coefficients in the online mode us-ing the resources of the information platform Yandex.Cloud.

The measurement stand with DAQ card for recording a bioelectric signal from human muscles

The measurement stand for recording a bioelectric signal from human muscles has been described in the paper. A DAQ card with a USB bus has been used in the measuring channel. The acquisition of the electromyography signal is carried out using the non-invasive method using gel electrodes. The bioelectric signal is amplified, filtered and processed in hardware and software. The tests of system operation in the measurement laboratory have been carried out. The presented results relate to the measurement of the electromyography signal from the forearm muscles of the upper limb of a human.

Obstacle Identification Through Fast Vector Analysis

During road travel, obstacles can impede productivity or durability for many different vehicles and render discomfort or injuries for the people within. Using remote sensing techniques, information from the surroundings can be acquired and analysed to identify obstacles ahead. The subsequent analysis can create a decision support for how the vehicle or driver should act upon encountered obstacles, through either autonomous control, guidance to the driver or a combination of both. In this paper, an experimental setup was created to mimic an obstacle in the shape of a speed bump on a flat road. An RGB-D camera was used to acquire information while travelling towards the speed bump. Afterwards, the acquired information was analysed by an estimation of the normal vector for each point in a 2D depth map. The resulting data from the experiments had sufficient resolution, speed and quality to retrieve proper identify obstacles or targets indoors with an accuracy of 2%. Obstacles were measured and identified in less than 20 ms where processing time mainly comprised data transfer from the USB-bus. The obstacle identification can be used to e.g. actively control the vehicle suspension, send feedback to the driver about obstacles ahead or optimise speed and direction for autonomous vehicles.

Multi-Thread Chain DMA Data Transfer Method for SuperSpeed Bus Video Transmissions

SuperSpeed bus, also known as USB3.0 bus or SuperSpeed USB bus, is the newest USB bus technology. This paper presents an innovative DMA transfer method called Multi-thread Chain DMA for SuperSpeed bus video data transmissions. The maximum 5Gbps giant data rate of SuperSpeed bus demands a high speed and high reliability DMA method. However, traditional DMA method can not achieve this required data rate due to its separate data transmission and reception. Unlike traditional DMA method, utilizing a novel designed mechanism, Multi-thread Chain DMA transfer method transmits and receives data concurrently, achieves SuperSpeed data rate and guarantees no data loss. Furthermore, one communication protocol for SuperSpeed video transmission is designed and implemented to comply with USB Video Class (UVC) standard. The field trial has demonstrated Multi-thread Chain DMA transfer method and SuperSpeed video communication protocol in the article are feasible and rich in value of research.