The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents design, implementation and testing of a communication module for a laser range finder with integrated positioning system (GPS). Range finders are widely used in military but also civil applications like topography. The idea was to upgrade a standard laser rangefinder device with position information subsystem and to have radio transmission of distance and position information....
The system described in this paper is aiming to solve the non-optimal energy conversion in solar panels due to the angle bias of the panel surface orientation related with radiation source. Because the device is intended to function on a mobile system with unpredictable moves, the orientation algorithm works in an adaptive manner. The mathematical background of the algorithm use geometric 3D vector...
Improving the economy of the district heat operation requires a detailed analysis of the entire value chain starting at the heat generation plant, following the distribution network and ending with demand side. Extra efficiency can be achieved by replacing human work with remote monitoring via Internet or GSM communications and using networks of wireless sensors for collecting data. This procedure...
Mechatronic systems combine fine mechanics, electronics and information technology to achieve better performance with lower cost when compared with a mechanical-only device. Hydraulic systems, using hydraulic cylinders as actuators, are typical mechatronic systems. Efforts were made to develop a universal electronic module for controlling mechatronic devices and a test mechatronic system to validate...
Industrial processes require today rigorous control of different parameters. Control systems became complex mechatronic systems with multiple sensors, data processing units and actuators. An important part of automated systems are electro-hydraulic, using hydraulic cylinders as actuators. A mechatronic device combines fine mechanics, electronics and information technology to achieve better performances...
The paper presents a DC-DC step-up/down converter used in switching power supply with monolithic switching regulator control circuits. The paper completely describes the design of the switching power supply starting with the simplified mathematical theory of the DC-DC step-up/down converter, getting on with the general description of MC34063 and muA78S40 operation modes and then with the mathematical...
Design and programming of embedded systems require skills that need training and practice. Usually these activities are performed using a development board equipped with a specific microcontroller and a software environment for firmware development. The main problem of such approach is its focus on only one device type - other microcontroller families require other development boards. This aspect...
Hydraulic axis is a typical mechatronic system that combines fine mechanics, fluid power, electronics and computing. Modern devices embed all their control electronics components into mechanical body for increased reliability, cable reduction or elimination and global miniaturization. This leads to need for small size control electronics, possible only by using system on chip microcontrollers with...
The laser controlled modular system with electro hydraulic driving is purposefully created for equipping the terrace leveling equipments, used in constructions and agriculture. It gives to the equipment on which it is mounted the property of working automatically, after an optical reference plane, generated by a rotary laser transmitter. The optical reference plane, generated by the rotary laser transmitter,...
Industrial processes require rigorous monitoring and control of many parameters. The control systems for such processes must be accurate, fast in response, reliable and also inexpensive. Digital control systems offer comparable performance with analog counterparts but are more flexible in communication and data processing issue and, most important, have lower costs. These costs can be further decreased...
In current medical practice best treatment can be obtain only with permanent monitoring, but lack of human resources leads to many patients under observation of only one medical person. This can be possible only using remote control of medical devices in client-server architecture: one computer in guard room connected to many medical devices from different rooms. This paper describes hardware and...
Linear variable differential transformer (LVDT) sensors are widely used in hydraulic and pneumatic mechatronic systems for measuring physical quantities like displacement, force or pressure. The LVDT sensor consists of two magnetic coupled coils with a common core and this sensor converts the displacement of core into reluctance variation of magnetic circuit. LVDT sensors combines good accuracy (0...
Patient treatment in any hospital may require perfusion devices. Modern technology in this area is related to electronic-controlled devices that can be remotely accessed from a central place (guarding room). Because electromagnetic radiation is a big issue in medical world, remote access solutions must be wire-based, and RS485 serial communication is an effective solution. As part of a research project...
Adaptive and programmable dosing system for hydro-electrolytic trimming is a medical equipment that creates conditions for safely healing of many medical diseases that require perfusions with hydro-electrolytic agents. In current medical practice the advantages of controlled perfusion (in time and in liquid temperature) become very important. Rigorous control using electronic monitoring of perfusors...
Control systems with remote access capabilities become today more and more popular due to their extra advantages - control from distance and possibility to automate (batch processing) different tasks. An off-the-shelf technology for remote access is GSM (Global System for Mobile Communications) and can be easily integrated into embedded systems using modern GSM serial modems. Another trend in control...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.