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Location of VoIP caller in emergency
Mrník, Martin ; Krajsa, Ondřej (referee) ; Komosný, Dan (advisor)
This master thesis deals with the problem of localization of the caller to the emergency line with focus on VoIP calls. It contains general description of the main active and passive geolocation methods, and explains their function. The paper analyzes market share of different VoIP clients and describes the program Skype. The focus of this work is to create an application for geolocation of the caller using analysis of VoIP transmission. The application gains IP address of the caller by capturing packets and displays his/her location on the map. The coordinates are obtained from the MaxMind GeoLite City database which been chosen by evaluating objective parameters as the most suitable for desired use.
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USB Switch
Mrník, Martin ; Kolouch, Jaromír (referee) ; Fedra, Zbyněk (advisor)
This thesis deals with USB bus specification, its advantages, disadvantages, and different possibilities of use. To the readers it offers a closer look on the processes invisible to user during startup, operation and management of the device, their meaning, structure and timing. The thesis discusses the possibility of connecting multiple computers to USB devices via USB switch and is dedicated to the selection of suitable components for such a switch, development, hardware construction, programming the control circuits and utility. The thesis also considers the possibility of sharing storage media via USB switch.
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USB Printer Switch
Mrník, Martin ; Frýza, Tomáš (referee) ; Hermany, Jiří (advisor)
This work deals with USB bus specification, its advantages, disadvantages, and different possibilities of use. Readers offers a closer look at the processes invisible to user during startup, operation and management of the device, their meaning, structure and timing. The work also discusses the possibility of connecting more computers to a USB device through switch and is dedicated to design of such a switch.
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USB Printer Switch
Mrník, Martin ; Frýza, Tomáš (referee) ; Hermany, Jiří (advisor)
This work deals with USB bus specification, its advantages, disadvantages, and different possibilities of use. Readers offers a closer look at the processes invisible to user during startup, operation and management of the device, their meaning, structure and timing. The work also discusses the possibility of connecting more computers to a USB device through switch and is dedicated to design of such a switch.
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USB Switch
Mrník, Martin ; Kolouch, Jaromír (referee) ; Fedra, Zbyněk (advisor)
This thesis deals with USB bus specification, its advantages, disadvantages, and different possibilities of use. To the readers it offers a closer look on the processes invisible to user during startup, operation and management of the device, their meaning, structure and timing. The thesis discusses the possibility of connecting multiple computers to USB devices via USB switch and is dedicated to the selection of suitable components for such a switch, development, hardware construction, programming the control circuits and utility. The thesis also considers the possibility of sharing storage media via USB switch.
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Location of VoIP caller in emergency
Mrník, Martin ; Krajsa, Ondřej (referee) ; Komosný, Dan (advisor)
This master thesis deals with the problem of localization of the caller to the emergency line with focus on VoIP calls. It contains general description of the main active and passive geolocation methods, and explains their function. The paper analyzes market share of different VoIP clients and describes the program Skype. The focus of this work is to create an application for geolocation of the caller using analysis of VoIP transmission. The application gains IP address of the caller by capturing packets and displays his/her location on the map. The coordinates are obtained from the MaxMind GeoLite City database which been chosen by evaluating objective parameters as the most suitable for desired use.
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