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Subscriber Line Interface Circuit Control
Havran, Josef ; Číž, Radim (referee) ; Sysel, Petr (advisor)
The aim of this thesis is to design a connection of the development kit for the subscriber line interface circuit Si3220 with the development kit for the digital signal processor DSP56858EVM and implement a test application, which will allow us to use the development kit as a small private branch exchange. The application allows us to operate up to ten telephone machines and it disposes of basic telephone exchange functions -- generating tones to the headphone, detecting the DTMF dialing, generating the ringing and the voice connection of the subscribers.
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Application for Recognition of Human Eye Retina
Drozd, Radek ; Hájek, Josef (referee) ; Drahanský, Martin (advisor)
The blood vessels layout in a human eye retina is unique for every person in the world, so it is one of important biometric characteristics. Processing of colour retina image may be a part of an intended biometric system. There is an algorithm for automatic blood vessels detection, optic disc and macula localisation, finding of bifurcation points and saving those as a biometric template presented in this bachelor's thesis. C++ programming language and OpenCV library were used for implementation. The application was tested on a set of colour retina images, taken by fundus camera. The final application is supposed to run on a digital signal processor, developed by Texas Instruments. The thesis gives the introduction into biometrics, signal processing and human eye anatomy.
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Communication protocol implementation into signal processors
Červenec, Radek ; Daněček, Vít (referee) ; Herman, Ivo (advisor)
Práce se zabývá studují, modifikací a návrhem komunikačních protokolů a jejich implementací v digitálních signálových procesorech v jazyku instrukčních adres. Také zkoumá strukturu elektro-akustické jednotky EPIS 2.45. Popis jednotky je zaměřen na její softwarovou část a to zejména na operační systém založený na kooperativním multitaskingu. Pro dosažení úspěšného návrhu a implementace komunikačních protokolů se práce zaměřuje také na základy vícevrstvé síťové architektury. Poté je již zkoumána skutečná síť (Koris Net) společně s jejími, ale i dalšími komunikačními protokoly, jako například protokol Modus. Popis je doplněn o příklady zdrojového kódu jejich implementace v digitálním signálovém procesoru (ADSP 2191M). V práci je mimo jiné prezentován navržený komunikační protokol pro vyčtení souboru z palubního počítače připojeného k jednotce na sběrnici Modus. Společně s tím je také obsažena navržená úprava protokolu, tak aby bylo možné předávat stažené soubory přes radiové rozhraní do centrálního počítače.
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Digital Signal Processor based Baby Cry Detector
Sobotková, Šárka ; Rozman, Jiří (referee) ; Sekora, Jiří (advisor)
The thesis discusses the baby cry. Processing of literary research in dealing with children crying and processing of audio signals. Based on information gathered propose an algorithm for detecting child's cry, which was verified using Matlab programming environment. Based on the identified parameters of the input signals and the proposed algorithms was selected appropriate digital signal processor. The hardware device was realized to detect and initialize the child crying, and its functionality has been verified in the recorded sound recordings child crying.
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Universal Tester of Tyco Fire panel
Vítek, Ladislav ; Kalina,, Emil (referee) ; Šteffan, Pavel (advisor)
This work is aimed on design of a device for testing of fire detectors and various components of fire detection system, communicating with the fire panel over a fire bus or a loop. The device generates voltages, supplying the detectors, as well as communicating over the bus generating communication waveforms and performing detection of responses measuring voltage and current on the connection. The loop signal is processed by the developed unit and data or result sent to a PC utilizing USB or RS232 connection. All the parts of the equipment are galvanically isolated to the loop circuit.
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Digital equalizer with dynamic range compression
Šafer, Radim ; Kováč,, Michal (referee) ; Brančík, Lubomír (advisor)
The aim of the thesis is to create a digital equalizer with dynamic range compression. The master's thesis is focused on the comparison of functions and parameters of individual digital processors which are given entirely for sound signals processing. It contains the detailed analysis of singular blocks used for signal processing in the circuit AD1953 and possibilities of control over programmable parametres of those blocks by a user. This thesis also contains a comparasion of the chosen A/D converters together with a description of the UDA1361TS circuit. A designed functional diagram of the final device is introduced as well. Thereafter possibilities of controling the individual blocks in the signal processor are mentioned. The final design of the digital equalizer is also introduced along with a description of software essential to a successful control over the processing of the signal in the AD1953 circuit. This thesis also describes a construction of the digital equalizer and involves results of the chosen measurements.
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Software for Laboratory stand with inverters and motors
Smolák, Martin ; Ctibor, Jiří (referee) ; Knobloch, Jan (advisor)
This bachelor‘s thesis focuses on control firmware for two microprocessors and visualization software of laboratory tasks on the computer. The first of the microprocessor controls a DC motor with permanent magnets and the second one an induction motor. The thesis first describes the hardware of the stand, the principle of AC motors control, Clark‘s and Park‘s transformation, description of firmware for DC and induction motor. Further there is described the visualization environment which serves students for controlling the stand and for calculation of the current regulator using the method of optimal module.
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Software for Laboratory stand with inverters and motors
Smolák, Martin ; Ctibor, Jiří (referee) ; Knobloch, Jan (advisor)
This bachelor‘s thesis focuses on control firmware for two microprocessors and visualization software of laboratory tasks on the computer. The first of the microprocessor controls a DC motor with permanent magnets and the second one an induction motor. The thesis first describes the hardware of the stand, the principle of AC motors control, Clark‘s and Park‘s transformation, description of firmware for DC and induction motor. Further there is described the visualization environment which serves students for controlling the stand and for calculation of the current regulator using the method of optimal module.
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Application for Recognition of Human Eye Retina
Drozd, Radek ; Hájek, Josef (referee) ; Drahanský, Martin (advisor)
The blood vessels layout in a human eye retina is unique for every person in the world, so it is one of important biometric characteristics. Processing of colour retina image may be a part of an intended biometric system. There is an algorithm for automatic blood vessels detection, optic disc and macula localisation, finding of bifurcation points and saving those as a biometric template presented in this bachelor's thesis. C++ programming language and OpenCV library were used for implementation. The application was tested on a set of colour retina images, taken by fundus camera. The final application is supposed to run on a digital signal processor, developed by Texas Instruments. The thesis gives the introduction into biometrics, signal processing and human eye anatomy.
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Communication protocol implementation into signal processors
Červenec, Radek ; Daněček, Vít (referee) ; Herman, Ivo (advisor)
Práce se zabývá studují, modifikací a návrhem komunikačních protokolů a jejich implementací v digitálních signálových procesorech v jazyku instrukčních adres. Také zkoumá strukturu elektro-akustické jednotky EPIS 2.45. Popis jednotky je zaměřen na její softwarovou část a to zejména na operační systém založený na kooperativním multitaskingu. Pro dosažení úspěšného návrhu a implementace komunikačních protokolů se práce zaměřuje také na základy vícevrstvé síťové architektury. Poté je již zkoumána skutečná síť (Koris Net) společně s jejími, ale i dalšími komunikačními protokoly, jako například protokol Modus. Popis je doplněn o příklady zdrojového kódu jejich implementace v digitálním signálovém procesoru (ADSP 2191M). V práci je mimo jiné prezentován navržený komunikační protokol pro vyčtení souboru z palubního počítače připojeného k jednotce na sběrnici Modus. Společně s tím je také obsažena navržená úprava protokolu, tak aby bylo možné předávat stažené soubory přes radiové rozhraní do centrálního počítače.
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