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Crossroads model
Záviš, Jan ; Roman, Foukal (referee) ; Štohl, Radek (advisor)
The topic of my bachelor thesis is The Model of Crossroads Systems with Light Signals. My bachelor thesis is divided into 3 parts. The first one is a theory where the issue of crossroads is described, especially focuses on light's signals. I have described specific ways of control and methods of realization such crossroads. Furthermore, project is focused on theirs timing of traffic fluency. The thesis also describes the hook-up of individual crossings not to avoid collapse in roads and traffics will be fluent. This is connected with changes in time delays depending on the traffic situation, for example rush hour. In addition, there is a general description of the crossroads as well, their division, advantages and disadvantages. The second part is focused on the design of a demonstration panel that will help as learning tools in the laboratory. This chapter contains a graphic design of a panel, a design of a control system scheme, a design of a PCB for a control system and the realization of a physical demonstration panel. In the project the issue of selecting a suitable source for the control system is analyzed. Furthermore, the thesis deals with the design of a universal code, which will serve as a template for various kinds of intersections. Finally, the issue of the initial recovery is addressed. Here comes the connection of the panel with the programmable automaton and the subsequent program upload.
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Speed Increasing for Track Section Křenovice - Nezamyslice
Bombera, Jan ; Kroupa, Jan (referee) ; Svoboda, Richard (advisor)
Bachelor´s thesis deals with the possibility of increasing the line speed at Křenovice – Nezamyslice track number 315A. Speed increasing is tested in two steps – with current track geometry parameters and with changing some of the track geometry parameters, but always in order to meet regulatory and normative limit values. The new speed is determined for conventional vehicles and for vehicles that are able to take advantage of cant deficiency I > 100 mm. Speed limits in locations of railway crossings, signals position, etc., are taken into account for speed increasing. In some cases are proposed measures to change these objects.
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Rail Safety device applied in railroad station
BÁRTA, Jan
The aim of this bachelor thesis is to create a basic overview of station security equipment used in the Czech railway network. The bachelor thesis deals with the basic types, principles and control of security devices. It describes the external parts of the security device, such as locks, switches, bolts and lights, which are controlled and secured by many types of security devices and aids. This thesis presents the development of security devices and points out the sequence of evolutionary steps of the device. More space in this thesis is devoted to electromechanical equipment and operating procedures. Electromechanical equipment uses the same principles and procedures for building train paths, similarly to modern electronic interlocks. There are several aspects to the development of a security device. The main task is to eliminate the human error factor, further speed up construction and increase control over the position of train paths. Today's modern technologies help to do this. The thesis introduces the concept of failure rate and the basic division of the causes of failures. Due to external influences, failures cannot be fully avoided, but they can be recorded in more detail and prevented it by quality operation and maintenance. This is the main reason for creating this thesis, which can help new entrants to maintain security equipment with their training and education for their future careers, so that the railway remains the safest land transport.
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Crossroads model
Záviš, Jan ; Roman, Foukal (referee) ; Štohl, Radek (advisor)
The topic of my bachelor thesis is The Model of Crossroads Systems with Light Signals. My bachelor thesis is divided into 3 parts. The first one is a theory where the issue of crossroads is described, especially focuses on light's signals. I have described specific ways of control and methods of realization such crossroads. Furthermore, project is focused on theirs timing of traffic fluency. The thesis also describes the hook-up of individual crossings not to avoid collapse in roads and traffics will be fluent. This is connected with changes in time delays depending on the traffic situation, for example rush hour. In addition, there is a general description of the crossroads as well, their division, advantages and disadvantages. The second part is focused on the design of a demonstration panel that will help as learning tools in the laboratory. This chapter contains a graphic design of a panel, a design of a control system scheme, a design of a PCB for a control system and the realization of a physical demonstration panel. In the project the issue of selecting a suitable source for the control system is analyzed. Furthermore, the thesis deals with the design of a universal code, which will serve as a template for various kinds of intersections. Finally, the issue of the initial recovery is addressed. Here comes the connection of the panel with the programmable automaton and the subsequent program upload.
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Speed Increasing for Track Section Křenovice - Nezamyslice
Bombera, Jan ; Kroupa, Jan (referee) ; Svoboda, Richard (advisor)
Bachelor´s thesis deals with the possibility of increasing the line speed at Křenovice – Nezamyslice track number 315A. Speed increasing is tested in two steps – with current track geometry parameters and with changing some of the track geometry parameters, but always in order to meet regulatory and normative limit values. The new speed is determined for conventional vehicles and for vehicles that are able to take advantage of cant deficiency I > 100 mm. Speed limits in locations of railway crossings, signals position, etc., are taken into account for speed increasing. In some cases are proposed measures to change these objects.
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