• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 48
  • 34
  • 13
  • 8
  • 7
  • 7
  • 3
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 150
  • 150
  • 25
  • 20
  • 19
  • 17
  • 15
  • 14
  • 13
  • 12
  • 12
  • 11
  • 11
  • 11
  • 11
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

Bezdrátový kontrolér pro dálkové ovládání PTZ kamer / Wireless system for remote control of pan–tilt–zoom cameras

Chýlek, Richard January 2013 (has links)
This semestral project is concerned with remote control PTZ camera using the wireless controller, and the controller design including design documents. The controller will be composed of the signal converter, microcontroller and RF module. Control data to the controller will come via link RS485 and controller will be able to communicate using the following protocols-Ernitec and Pelco. The proposed controller, according to data from the manufacturer to have a range of up to 500m. This parameter and also other transmission parameters confirm in the diploma thesis which will focus the actual implementation of the controller.
132

10 portový GSM reléový spínač s GUI / 10 port GSM relay switch with GUI

Bartulec, Tomasz January 2008 (has links)
System hardware and software design for a GSM switch with ten switching outputs, controlled via SMS. Description of used GSM module and its properties, feasibility and requirements, design and description of supply circuits for module outputs to relay outputs decoding, plug-in realisation of outputs. GSM module application software creation, remote SMS control requests implementation, sender's phone number check and information about completed requests by call-backs. Adding AT command to set up device. Development of web server providing control of switch throught Internet browser, solving communication between server and device, and data management. Testing of created SW and evaluation of final design from aspects of usage.
133

Decentralizovaný systém řízení vytápění budov / DCS for building control

Kopeček, Petr January 2008 (has links)
This thesis deals with DCS for bulding control. The main aim was to develop a general system, which can be adapted according to the individual requirements and which should minimize costs too. Hardware modules, communication bus, communication protocol, system topology and regulation mechanisms, have been designed. Regulators have been set. There are introduced current realization and possible future extensions too. The high security and the high functionality topics are included.
134

Ochrany venkovních vedení vn a jejich koordinace s automatizovanými úsečníky / MV Overhead Line Protections and their Coordination with Autoreclosers

Šoustal, Petr January 2009 (has links)
The aim of this Master’s Thesis is to describe protections for overhead lines in distribution networks. Here are described requirements for the protection and the basic protections. Protections are divided according to their protective function. For each protection is given its use and its power plans. It is stated in the work setting of protection in the real network. On this network is simulated place with short-circuit and described the action of protection. The work also deals with the coordination of protection with automatic circuit breakers. This chapter shows that, given the selectivity is not possible to deploy two or more reclosers (remotely-operated switches) to the core network management. The next chapter describes two representatives reclosers available on the Czech market OSM 27 and GVR 27. Chapter describes and compares their performance characteristics. Conclusion the work includes a proposal protected the lead in incorporating automatic circuit breakers (remotely operated circuit breakers and reclosers). The proposal is based on two different levels of annual number of interruptions and duration of annual general interruption of electricity supply. For these levels the company EGÚ Brno, a.s. proposed several variants of the use of remote-controlled in terms of reducing the cost of the penalty. Our task was to choose a variant that would be applicable in the real network. Reducing costs is feasible only in the limits Ln = 6 failures / year and Lt = 720 min / year, where the selected option No. 4. The limits Ln = 8 failures / year and Lt = 1,080 min / year, not in the real network may no option in terms of selectivity.
135

Bezdrátový kontrolér pro dálkové ovládání PTZ kamer / Wireless system for remote control of pan–tilt–zoom cameras

Chýlek, Richard January 2014 (has links)
This semestral project is concerned with remote control PTZ camera using the wireless controller, and the controller design including design documents. The controller will be composed of the signal converter, microcontroller and RF module. Control data to the controller will come via link RS485 and controller will be able to communicate using the following protocols-Ernitec and Pelco. The proposed controller, according to data from the manufacturer to have a range of up to 500m. This parameter and also other transmission parameters confirm in the diploma thesis which will focus the actual implementation of the controller.
136

Digitálně řízený audio zesilovač ve třídě D s dálkovým ovládáním / D class audio-amplifier with digital and remote control

Petrgál, Filip January 2014 (has links)
The contents of this thesis is design of audio power amplifier in Class D with fully digital control and remote control and is divided into two parts . The first part is devoted to the basic principles and theory of key elements of the entire amplifier. The second part consists of a complete description of the design and construction of a power amplifier, digital control with remote control, a spectrum analyzer, equalizer, preamp VU meters and complete power supply. Each proposal contains a detailed analysis of the solutions supported by simulations and software. For individual parts have been completely measured p arameters.
137

Design automatické sekačky na trávu / Design of automatic lawnmower

Rytíř, Jan January 2009 (has links)
The aim of this diploma thesis is the design of an automatic lawn mower. The design solution is based on innovative concept respecting all technical, ergonomical, aesthetical and ecological demands. A research study, including a historical, technical and design analysis of lawn mower, is preceding the description of main creative part of design process starting from the concept development and ending up with the final solution. A conclusion of the thesis presents an analysis of final solution, its character, contribution to the human society and the particular role of industial design in automatic lawn mower concept.
138

Návrh zdroje elektrické energie pro model letadla / Design of Power Supply for Aircraft Model

Šrámek, Martin January 2012 (has links)
Diplomová práca, ktorú držíte v rukách, sa zaoberá návrhom elektrického generátoru pre modely lietadiel na diaľkové ovládanie poháňané spaľovacím motorom. Takýmto modelom je dodávaná energia pomocou batérií, ktoré sa musia po vybití vymieňať. Motiváciou tejto práce bolo potlačiť potrebu pristávania za účelom dobíjania batériových paketov. Práca vyvíja niekoľko analýz a simulačných modelov pre riešenie tohto problému.
139

Uživatelské rozhraní pro řízení servisního robota / User Interface for Control of Service Robot

Kapinus, Michal January 2014 (has links)
The aim of the thesis is to design, create and evaluate a user interface for control of service robot. I will focus on controlling of robotic arm, to be able to accomplish pick and place tasks. Specifically I will work with robotic platform PR2. The thesis describes different devices for sensing and perception of a user and usage of information from these devices to control robotic arm. Moreover, different methods for controlling of robotic arm are described there. Application design and implementation is presented further in this thesis together with description of the experiments used for evaluation of application.
140

Multimódový VKV rozhlasový přijímač / Multimode VHF Broadcasting Receiver

Hradňanský, Vladimír January 2016 (has links)
The aim of this work is to design a microprocessor-controlled multimode VHF radio can receive AM, FM and DAB. The first step is to become familiar with digital radio broadcasting DAB and RDS. Then we can proceed to the design of the receiver circuit solution using modern component base. Next it is necessary to write utility software and construct a prototype of receiver, verify its functionality and parameters. The result of the work is the multi-mode VHF broadcasting receiver controlled using touch screen display and supported by web management.

Page generated in 0.0595 seconds