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In this paper is presented a new approach for implementing a versatile temperature control and monitoring system for thermal enclosures based on Peltier thermoelectric elements. The system is intended to be used for temperature testing of equipped or unequipped electronic printed circuit boards (PCB). These types of tests regarding thermal aging and endurance are very important for verifying the long...
This paper presents an acquisition system for sound recording, typical spectral component identification and extraction of particular instruments from a soundtrack, based on each instrument's spectral components. This system is also capable of sound reproduction (playback) and its main feature consists of minimizing the delay between the recorded sound and the playback sound below 100ms. To achieve...
This paper approaches the problem of implementing an experimental module that facilitates the teaching and learning of the Braille alphabet. The proposed system follows to improve the existing assistive technologies dedicated for helping visually impaired peoples. The main board of the experimental module is realized around the PIC 16F877A microcontroller that runs a proprietary software application...
This article presents the implementation of a novel architecture of a specialized measurement and control system that is intended to be integrated in a complex automation system for buildings. The proposed design is realized around Atmega 328 microcontroller embedded on Arduino Uno development board. For indoor environmental monitoring are used different sensors associated with various physical quantities...
This article presents a “smart sound sensor” solution. More specifically it is a system on a chip capable of extracting sound patterns from an input signal captured by a microphone, patterns that correspond to certain musical instruments. The aim is to identify sounds like: voices, ambient sounds or musical sounds. Such applications generally involve the presence of a computer that analyzes offline...
The objective of this article is the implementation of an effective control system for a heliostat field. Each heliostat is based on a mirror and a routing system. Such a field of mirrors must be guided in order to focus the rays to a central captor device (usually placed on a tower). The efficiency of the system depends on the orientation control of mirrors on two axes (North-South and East-West)...
The content addressable memory (CAM) is allowed to search a data without knowing its address as to common memories. In addition, it allowed associating the content of the location or neighboring locations where the data word was identified. A problem that occurs to this type of memory is implementation complexity. A possible solution is to use a hardware implemented Hopfield neural network. This paper...
The content addressable memory (CAM) is allowed to search a data word without knowing where its address is. In addition, it is permissible to associate the content of the location or neighboring locations where the data word was identified. This paper presents our own approach for VLSI hardware implementation of the CAM memory. The proposed solution uses a Hopfield neural network model and is characterized...
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