Original title: Univerzální přepínač pro zabezpečovací techniku
Translated title: Universal switch for security systems
Authors: T.Kovács, Matúš ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
Document type: Bachelor's theses
Year: 2008
Language: slo
Publisher: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
Abstract: [slo] [eng]
Práca pojednáva o problematike riešenia zariadenia pre zabezpečovaciu techniku pri využití elektronických zabezpečovacích systémov a kamerového systému. Zariadenie disponuje štyrmi kamerami pričom každá jedna kamera je spojená s detektorom pohybu. Zariadenie je navrhnuté tak aby umožňovalo rozpoznať poškodenie snímača, poruchu na vedení, skrat na vedení, prepnutie videosignálu v snímkovom zatemňovacom intervale a zaslanie SMS z GSM modemu. Dôležitými prvkami zariadenia sú VIDEO MUX, ktoré sprostredkuje signál z kamier do obrazoviek a PIR HANDLER, ktorý slúži k zisteniu stavov PIR detektorov. Činnosť týchto periférií ale aj celého zariadenia riadi mikrokontrolér ATmega128. The aim of this work is to discuss the topic of a secure technology device using an electronic securing system and a camera system. The device is using four cameras, from which each is connected to a motion detector. The device is designed so it allows the recognition of a possible failure to the analyzer, damage or arcing fault of the guidance, the switch of the video signal within the vertical blanking interval, or a malfunction of the SMS sending from a GSM modem. Important parts of the device are the VIDEO MUX, which provides the signal from the camera to the screen, and the PIR HANDLER which detects the states of the PIR detector. The work of these peripheries is monitored by the ATmega128 microcontroller.
Keywords: AT commands; ATmega128; blanking interval; camera; Composite video signal; GSM modem; ISP; LM1881; microcontroller RISC; monitor.; PIR detector; PIR handler; SonyEricsson GM29; UART; video mux

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/14175

Permalink: http://www.nusl.cz/ntk/nusl-595761


The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Academic theses (ETDs) > Bachelor's theses