National Repository of Grey Literature 56 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Home Security and Monitoring System
Valach, Lukáš ; Crha, Adam (referee) ; Šimek, Václav (advisor)
The thesis elaborates on an implementation of wireless home security system. The wireless communication utilizes IEEE 802.15.4 radios and ZigBee communication protocol. The beginning of the thesis provides specification of the intended system followed by an evaluation of usable energy harvesting solutions and later by consideration of single board computer systems suitable for implementation of the control node of the sensor network. The rest of the thesis describes design, implementation and testing of particular components of the security system. Conclusion evaluates the achieved goals and offers suggestions for future work. The end products of the thesis are physical devices implementing wireless sensor nodes, control unit of the security system as well as a graphical user interface for the system management.
Agent-Based Monitoring of Wireless Sensor Networks
Houšť, Marek ; Kočí, Radek (referee) ; Zbořil, František (advisor)
The reader is first introduced with history and possible applications for wireless sensor networks. The thesis then describes the problems of wireless sensor networks and implementation tools for wireless sensor networks. The thesis also presents the system WSageNt and its client web interface. Practical part is based on the design of agent elements. Describes gradual implementation, testing and practical realization of these agent elements in the system WSageNt. The final part discusses the advantages and disadvantages of the project and identifies possible future expansion of the system.
Wireless sensor system
Kotouček, Filip ; Šimek, Milan (referee) ; Botta, Miroslav (advisor)
Bachelor thesis describes the design of wireless sensor network composed of modules deRFmega128 and Raspberry Pi. It Contains a description of the created protocol for wireless communication and protocol for serial interface on the gateway. It also describes web interface for general management of network. The work includes analysis of nodes energy performance and measurement of solar panels as a potential secondary sources of energy.
Impact of Communication Parameters on Energy Consumption of Zigbee Devices
Popelka, Jan ; Červenka, Vladimír (referee) ; Šimek, Milan (advisor)
This thesis deals with the energy research and design a simple wireless sensor networks. The data modules with ZigBee wireless communication technology. The main feature of wireless sensor networks is the minimal energy devices at low cost and maximum data reliability. Furthermore, the work describes firmware for communicating nodes with the ability to change parameters of data transmission and thus affect the energy consumption node. Calculations of energy consumption, compared with measured results and discharge characteristics of the battery packs are included in the final chapters of this work.
Proposal of wireless sensor network for indoor monitoring of people and objects
Záděra, Zdeněk ; Mráz, Ľubomír (referee) ; Morávek, Patrik (advisor)
This thesis describes the design of wireless sensor network (WSN) for monitoring of people and objects in a building. The work deals with issues of localization and tracking in sensor networks and algorithm implementation to sensor nodes. It also contains a description of the aplication requirements. These requirements form the basis for the proposal. The hardware part of the network consists of sensor nodes IRIS from Crossbow company. The work describes the properties of these nodes. Next part deals with of propagation model and design of the localization algorithm. The paper also describes the communication in the network. The thesis also includes a practical realization of the proposed network, the localization system and its testing. In the work is included a CD with the building schematic in AutoCAD and with source code of created applications.
Wireless Protocol MiWi
Leška, Jakub ; Korček, Pavol (referee) ; Košař, Vlastimil (advisor)
Overwiev of actual solutions in routing protocols in wireless sensors networks, description of wireless protocol mimac and its miwi, design of new protocol for sensor network used in inteligent housing
Human Mo-cap System Based on Inertial Measurement Units
Grzybowská, Martina ; Semerád, Lukáš (referee) ; Drahanský, Martin (advisor)
Cieľom tejto práce je navrhnúť, zhotoviť a implementovať vlastný systém pre zachytávanie pohybu založený na inerciálnych meracích jednotkách. V rámci budovania teoretického základu bolo preskúmaných viacero metód, avšak primárne bola pozornosť venovaná samotnému inerciálnemu snímanu - jeho kladom a nedostatkom, kľúčovým vlastnostiam a jednotlivým komponentom potrebným pre zostrojenie systému na jeho báze. Tento úvodný zber informácií je nasledovaný fázami návrhu, zhotovenia a zhodnotenia, ktoré sa zaoberajú procesom vývoja a testovania daného riešenia. Hlavným prínosom realizácie systému je zostrojenie zariadení pre snímanie pohybu - jedná sa o malé, ľahké, batériovo napájané zariadenia, ktoré sú kompletne bezdrôtové, či už z hľadiska komunikácie s okolitým svetom, alebo vďaka napájaniu kompatibilnému so štandardom Qi.
Interpreter of ALLL Language for Android
Skácel, Dan ; Zbořil, František (referee) ; Horáček, Jan (advisor)
This master's thesis deals with creating an application for mobile devices with an Android operating system. The main task of this application is interpreting ALLL language commands. This allows any mobile device running this application to be a node of a wireless sensor network. First, well-known principles of wireless sensor networks, agents and ALLL language, which describes the agents in wireless sensor network, are explained in this project. The method for building the application on these bases follows. There are also some examples of agents interpreted by this application at the end.
Node Location in the ZigBee Network
Capalini, Richard ; Očenášek, Pavel (referee) ; Trchalík, Roman (advisor)
The master thesis is concerned with problem of localization of nodes in wireless sensor network WSN implemented by ZigBee technology. The thesis provide description of ZigBee architecture involving signal description. The method of evaluating coordinates basically do not depend on used measuring methods. The method  of fingerprinting is included in separated category based on only statistical processing of RSSI data. Determination of coordinates of mobile node always needs finding out range, signal time of arrival (ToA) or angle of arrival (AoA) in respect to anchors node given dimension magnitude. The author found out three possible solutions for range measuring and one solution for angle of arrival measuring useable in context of ZigBee wireless sensor network. Finally the author discuss possibilities and constraints of ZigBee network with used measuring type.
Lifetime Simulation of Wireless Sensor Network in Matlab
Chadim, Pavel ; Sysel, Petr (referee) ; Šimek, Milan (advisor)
This bachelor’s thesis is concerned with developing the energy model for wireless sensor network. The main features of wireless sensor networks include minimum energy consumption and the maximum date reliability. Furthermore work will be done in simulation lifetime of wireless sensor networks with the possibility to change parameters (error rate, transmission interval), which affects the power consumption of the node.

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