Various control and monitoring systems based on wireless sensor networks face numerous scientific and technological challenges, many of which are conceptually new. Certain aspects of the functioning of wireless sensor networks significantly affect the performance of the developed system.
This work presents an analytical and numerical investigation of a Fabry–Perot interferometer used as an optical sensor for measuring variations in the refractive index of liquid media. The study focuses on evaluating the spectral and angular sensitivity of the sensor as well as determining its quality factor, which characterizes the efficiency and accuracy of the sensing system.
This paper is devoted to the research of the important issue of increasing the efficiency and optimization of microclimate management processes in residential premises. The purpose of this study is to create an automated system for accurate setting and control of the main parameters of the microclimate in the room, which will make it possible to increase comfort and energy efficiency. To achieve the task, the Arduino platform is used, which is an open hardware and software system with a wide range of opportunities for developing embedded systems.
Наведено алгоритм побудови сенсорної мережі кластерної структури на основі триколірної евристики. Описано програмний продукт, який реалізує вказаний алгоритм та дає змогу досліджувати сенсорні мережі цього класу. Наведено результати досліджень життєвого циклу сенсорної мережі при виході з ладу сенсорів у результаті їх відмови.
Measuring and controlling the temperature of the environment in the room is one of the most important measurements that a person makes every day. Temperature measurements are used to control objects where it is important to constantly maintain a certain temperature regime, or where sharp temperature changes can affect the efficiency of the final result of the operation of this object. Remote control of these indicators will allow the management to quickly intervene in the work of the enterprise to eliminate problems that may lead to a loss of the object's productivity.
Physiological rehabilitation is applied in medical practice to restore a person's functional ability after musculoskeletal
injuries. Movements in the joints are the main functional indicator of the activity of the organs of support and movement.
The paper considers a resistive goniometric sensor in the form of a ball joint. Based on such a sensor, a medical rehabilitation
goniometric system is developed. It includes also a data collection device (autonomous data recorder) and a portable modem.
At the stage of designing, the prototype of a multifunctional computer-aided informational measuring system with wireless data transferring with the use of various sensors of physical values was developed, and experimental investigations of such a system for revealing the possibilities of correct work with the sensors industrially produced, as well as sensors and converters of physical quantities developed at the Laboratory of sensor electronics of the Department of Semiconductor Electronics of Lviv Polytechnic National University as a part of a curre
Conductivity measurement is a universal method of process control. Measurement is fast and straightforward, and most modern sensors only require little maintenance. The measured conductivity value is applied to obtain different assumptions about what happens in the substance, so such measurements are relevant when controlling technological processes and products in various industries (e.g., food, pharmaceutical). The main metrological characteristics of sensors for measuring conductivity LDL100, LDL200 are analyzed in the article.
With the development of microprocessor components and, accordingly, a significant expansion of the use of computer technologies, remote measurement techniques are being developed. These include telemetry and remote control of technical systems or their components in industry, research, home appliances and other fields. In this paper, the author suggests how to build a local web-server based on a microcontroller with an ARM Cortex-M4 core, which can be interacted with via an http-browser with Internet access.
In this project was shown approaches to the implementation of a weather station for monitoring the microclimate in the room on Arduino platform. Considered a platform for project development and software environment. The virtual scheme of the weather station is modeled. The main functions of the components are described and their connection to the microcontroller is shown. The process of firmware of the microcontroller is considered. The algorithm of system operation is described. A functional electrical diagram were also constructed.