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Bar Code Implemamtation to Production Process of Small Factory
Tihon, Karel ; Špinka, Jiří (referee) ; Starý, Jiří (advisor)
Target of my diploma thesis is barcode study and implementation to SMT assembly processes. This thesis contains two main parts. The first one is devoted to basic types of barcodes, reading technologies and industrial process mapping in PCB assembly. The second part is devoted to theoretical proposal and physical realization of system for materials flow monitoring. Barcode is contained in this system. Practical part of this thesis is tested in a company realizing contract manufacturing in PCB assembly - SMT and THT.
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Implementation of restoring method for reading bar code
Kadlčík, Libor ; Bartušek, Karel (referee) ; Mikulka, Jan (advisor)
Bar code stores information in the form of series of bars and gaps with various widths, and therefore can be considered as an example of bilevel (square) signal. Magnetic bar codes are created by applying slightly ferromagnetic material to a substrate. Sensing is done by reading oscillator, whose frequency is modulated by presence of the mentioned ferromagnetic material. Signal from the oscillator is then subjected to frequency demodulation. Due to temperature drift of the reading oscillator, the demodulated signal is accompanied by DC drift. Method for removal of the drift is introduced. Also, drift-insensitive detection of presence of a bar code is described. Reading bar codes is complicated by convolutional distortion, which is result of spatially dispersed sensitivity of the sensor. Effect of the convolutional distortion is analogous to low-pass filtering, causing edges to be smoothed and overlapped, and making their detection difficult. Characteristics of convolutional distortion can be summarized into point-spread function (PSF). In case of magnetic bar codes, the shape of the PSF can be known in advance, but not its width of DC transfer. Methods for estimation of these parameters are discussed. The signal needs to be reconstructed (into original bilevel form) before decoding can take place. Variational methods provide effective way. Their core idea is to reformulate reconstruction as an optimization problem of functional minimization. The functional can be extended by other functionals (regularizations) in order to considerably improve results of reconstruction. Principle of variational methods will be shown, including examples of use of various regularizations. All algorithm and methods (including frequency demodulation of signal from reading oscillator) are digital. They are implemented as a program for a microcontroller from the PIC32 family, which offers high computing power, so that even blind deconvolution (when the real PSF also needs to be found) can be finished in a few seconds. The microcontroller is part of magnetic bar code reader, whose hardware allows the read information to be transferred to personal computer via the PS/2 interface or USB (by emulating key presses on virtual keyboard), or shown on display.
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Postal robot navigation
Jež, Radek ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
This work deals with algorithms for postal robot control. It solves problems with finding shortest path and possible problems incurred during navigation of robot. Work includes description of used data structures and algorithms for autonomous activity. Next includes description of user interface of main control application and two supplement applications. Sequel is description of testing work in real environment and evaluation of results. At the end there are summarized information followed from testing and recommendations for next testing.
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The Study of Brand Goods in the Trade Organization
Stárek, Jiří ; Hnilicová, Anna (referee) ; Jurová, Marie (advisor)
The aim of the thesis is implementation of the barcode system for tracking goods to a specific business organization. Based on ascertained knowledge, the specific request for installation of the barcode is presented to firms dealing with this subject. Submitted proposals are subsequently evaluated. Then the proposal is selected which meets the company´s demands in the best way. Further, the procedure is suggested for marking goods with the barcode, possible manipulation with the marked goods and interconnection of used data with the company´s information system.
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Barcode
Tůma, Vladimír ; Šedá, Jitka (referee) ; Matoušek, Radomil (advisor)
This work deals with problems of the barcode applied to automatic identification. Description of their major part, creation of the bar code online generator, a web-page information system using the barcodes to identify the object, is presented.
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AVR microcontroller-based reader of bar codes and RFID chips
Barka, Marek ; Daněček, Vít (referee) ; Šilhavý, Pavel (advisor)
This thesis dealt with concept resolution of bar-code scaning and Rfid chip, whitch their scan data are procesing with microprocesor and they are transmitted to input computer keyboard. Filing the bar-code and Rfid chip to the topical area automatic identification. A finish of the work is a realisation hardware and transmition recency data to the computer space. It work includes techniques, which it describes communication with others integrated circuit together detailed definition and test used interfaces.
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The ARKOV Logistic Processes Optimization Proposal
Urban, Jiří ; Tichý, Martin (referee) ; Dydowicz, Petr (advisor)
The intent of diploma thesis is to propose the optimization of current logistic processes with utilization of modern information technology. The work will propose the tool for stock classiffication, further evaluates the options of the warehouse management system implementation, including on-line connection to SAP Business One ERP system, and proposes its utilization in optimization of company’s business processes. The result of this work is the recommended proposal of the best and as well as cost friendly solution for company ARKOV, Ltd.
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Managing transformation of asset management using bar codes at the Emergency Medical Service
Spurný, Martin ; Hradcová, Dana (advisor) ; Mathauser, Radek (referee)
1 ABSTRACT As the capital of Prague gradually expanded, both in population and area, Emergency Medical Service of Prague (EMSP) had to grow accordingly. Rescue Teams of EMSP are currently located in 18 stations throughout the territory of Prague. The high number of Rescue Teams groups poses a major challenge to technical - physical operation. One of the areas where the need for changes has been identified, is the asset management. The current system is inadequate and unable to respond flexibly to frequent changes in the asset register. Large number of emergency stations, which are located over a large area and include ambulance cars, triggered the need for rapid search and registration of fixed assets, so the whole process would be as efficient as possible and would not hinder the operation of Rescue Teams. Therefore the registration of property by means of barcodes was launched. During inspections and changes in records or registration of new assets, the operation in records is carried out quickly and efficiently using mobile terminals with a bar code reader, which is actually a small computer. The aim of this paper is to describe management of changes in property records using bar codes at the Medical Emergency Service of Prague. This change in the process of property registration will reduce the time,...
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Barcode
Tůma, Vladimír ; Šedá, Jitka (referee) ; Matoušek, Radomil (advisor)
This work deals with problems of the barcode applied to automatic identification. Description of their major part, creation of the bar code online generator, a web-page information system using the barcodes to identify the object, is presented.
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