Inspection of one-dimensional and two-dimensional code prints on pharmaceutical manuals

Diplomsko delo obravna izdelavo sistema za branje tiska enodimenzionalnih in dvodimenzionalih kod na farmacevtskih navodilih, katerega cilja sta branje in primerjava prebrane kode z referenčno s povezavo programirljivega logičnega krmilnika (v nadaljevanju PLK) in grafičnega čitalnika kode. Dodatno je v sistem vključen osebni računalnik s povezavo na PLK za izpis poročil. Glavni deli sistema so PLK, čitalniki kod ter osebni računalnik. V uvodu sta predstavljeni podjetje Tipteh d.o.o. in podjetje B3Servis d.o.o., ki je investiralo v razvoj in izdelavo sistema. V nadaljevanju so predstavljene zahteve sistema in cilj naloge. Delo je razdeljeno na 2 glavna dela. Prvi del vsebuje opis elementov sistema ter predstavitev in opis uporabljene strojne opreme. Temu sledi predstavitev uporabljene programske opreme in primer neuspešnega zmanjševanja stroškov strojne opreme. Drugi del opisuje izdelavo sistema in je osredotočen na programski in nastavitveni del komunikacij PLK-ja z grafičnimi čitalniki kod in osebnim računalnikom. Opisani so načini komunikacij in strukture paketov, ki si jih med seboj izmenjujejo za branje in primerjavo enodimenzionalnih in dvodimenzionalih kod ter za vodenje delovnih nalog in izpis poročil. Na koncu je predstavljen ergonomičen vmesnik človek-stroj s sistemom preko operaterskega panela. V sklepu sem ponovno povzel cilj diplomske naloge in analiziral rezultate razvoja sistema.This thesis discusses the creation and development of a system which reads one-dimensional and two-dimensional codes on pharmaceutical manuals. The systems goals are scanning, and comparing the scanned code to the reference data by connecting a programmable logic controller (PLC) to a code reader. A personal computer is additionally connected to the system through the PLC for data read-out. The main components of the system are PLC, code readers, and a personal computer. The introduction of the thesis introduces the company Tipteh d.o.o., and the company B3Servis d.o.o., which invested in the creation and development of the system. It continues with presenting the system requirements and the objective of the thesis. The thesis consists of two sections. The first section describes the system components, and electronic hardware. This is followed by describing the software used in the system, and also presenting a case of unsuccessful attempts at lowering the costs of the hardware. The second section describes the development of the system itself, the focus being on software and communication settings of the PLC connected to the code reader and the personal computer. It describes the means of communication and packet structure which are used for reading one-dimensional and two-dimensional codes, and managing work orders and data read-out. Lastly, it presents an ergonomic HMI system with an integrated operator panel. In the conclusion I summarised the objectives of the thesis, and analysed the results of the creation and development of the system