|
|
Research of Localization Algorithms in Wireless Sensor Networks
Holešinský, Pavel ; Morávek, Patrik (referee) ; Šimek, Milan (advisor)
This diploma thesis is focused on research of localization algorithms. Each developed localization algorithms are generally application specific. Because of application requirements diversity, many variants of localization algorithms exist. In case of finding appropriate localization algorithm for concrete application usability, existence of real condition simulation environment is useful. Development of this simulation environment was made simultaneously with both localization algorithms. At first, survey of available localization technic was performed and their summary was listed. Further work was aimed on research of two localization algorithms. Both of them use triangulation mechanism to determine unknown node position. This mechanism is based on measurement of distance to three reference points with known position. It would seem that both algorithms are similar, but simulation shows their difference and presents their suitability for diverse conditions.
|
|
|
Low-power wireless sensor node
Pobiecky, Michal ; Koton, Jaroslav (referee) ; Krajsa, Ondřej (advisor)
The main purpose od this thesis is to design wireless sensor node with emphasis on low power consumption. This device is firstly made of microcontroller Atmel ATmega328P and for transferring measured data XBee 802.15.4 or transceiver nRF24L01 is used. Subsequently there is a design with Atmel ATmega256RFR2 with integrated wireless part and Lightweight Mesh protocol. Special attention is given to sleep modes and lowering power consumption. For ATmega328P the measurement of these power modes is done.
|
|
|
Wireless Sensor Network Base on Android Platform
Bělohoubek, Tomáš ; Zbořil, František (referee) ; Samek, Jan (advisor)
Mobile devices on Android platform includes many sensors, wireless modules and methods for determining the position. This makes them interesting for use in area of sensor networks. This thesis examines the potential of these devices and their practical use in wireless sensor networks. Design and implementation of the custom application is based on these findings.
|
|
| |
|
|
Alocation of Sensor Node Position by a Mobile System
Hyrák, Jakub ; Janoušek, Vladimír (referee) ; Zbořil, František (advisor)
The goal of this diploma work is to study the problems of wireless sensor networks. Describe elements of sensor network and discuss how the individual sensor nodes communicate with each other. Find the way how it would be possible to determine the possition of the new added sensor node or mobile sensor node in the sensor network. The selected one algorithm of determining the possition of the sensor node will be implemented in diploma thesis. Algorithms for determining the positions of sensor nodes are divided into groups by using the methods. Selected algorithm will be tested in simulation on chosen platform.
|
|
|
Communication scheme of WSN in Omnet simulator
Mikauš, Jiří ; Šimek, Milan (referee) ; Holešinský, Pavel (advisor)
In the introduction of this semestral thesis there is an theory about wireless sensor networks which are still more used. Wireless sensor networks contains thousands nodes which communicate with each other due to wireless channel and so they create together a structure of the network. The nodes are low-energy and transfer information about measured medium to the base station which processes them and further provides to user. In the work are described protocols for medium access control and routing described. They place emphasis on as high reduction of consumption of energy as possible and thus they help to extend a network lifetime. Further the simulations in simulation program Castalia were performed where the energetic requirement for individual protocols of medium access are compared. As next there were also compared two communication units used in real application.
|
|
|
Low-power wireless sensor node
Pobiecky, Michal ; Koton, Jaroslav (referee) ; Krajsa, Ondřej (advisor)
The main purpose od this thesis is to design wireless sensor node with emphasis on low power consumption. This device is firstly made of microcontroller Atmel ATmega328P and for transferring measured data XBee 802.15.4 or transceiver nRF24L01 is used. Subsequently there is a design with Atmel ATmega256RFR2 with integrated wireless part and Lightweight Mesh protocol. Special attention is given to sleep modes and lowering power consumption. For ATmega328P the measurement of these power modes is done.
|
|
|
Alocation of Sensor Node Position by a Mobile System
Hyrák, Jakub ; Janoušek, Vladimír (referee) ; Zbořil, František (advisor)
The goal of this diploma work is to study the problems of wireless sensor networks. Describe elements of sensor network and discuss how the individual sensor nodes communicate with each other. Find the way how it would be possible to determine the possition of the new added sensor node or mobile sensor node in the sensor network. The selected one algorithm of determining the possition of the sensor node will be implemented in diploma thesis. Algorithms for determining the positions of sensor nodes are divided into groups by using the methods. Selected algorithm will be tested in simulation on chosen platform.
|
|
|
Wireless Sensor Network Base on Android Platform
Bělohoubek, Tomáš ; Zbořil, František (referee) ; Samek, Jan (advisor)
Mobile devices on Android platform includes many sensors, wireless modules and methods for determining the position. This makes them interesting for use in area of sensor networks. This thesis examines the potential of these devices and their practical use in wireless sensor networks. Design and implementation of the custom application is based on these findings.
|
|
|
Communication scheme of WSN in Omnet simulator
Mikauš, Jiří ; Šimek, Milan (referee) ; Holešinský, Pavel (advisor)
In the introduction of this semestral thesis there is an theory about wireless sensor networks which are still more used. Wireless sensor networks contains thousands nodes which communicate with each other due to wireless channel and so they create together a structure of the network. The nodes are low-energy and transfer information about measured medium to the base station which processes them and further provides to user. In the work are described protocols for medium access control and routing described. They place emphasis on as high reduction of consumption of energy as possible and thus they help to extend a network lifetime. Further the simulations in simulation program Castalia were performed where the energetic requirement for individual protocols of medium access are compared. As next there were also compared two communication units used in real application.
|
guest ::
