# The Use of the Internet of Things in the Distribution Logistics of Consumables
## 3 Results
### Implementation Process and Operation Process
\begin{table}
\begin{tabular}{c c c c c} \hline \hline  & **Maximum** & **Minimum** & **Average** & **Median** \\  & **(Minutes)** & **(Minutes)** & **(Minutes)** & **(Minutes)** \\ \hline The way to the vending machine & 6 & 0.23 & 1.12 & 0.86 \\ \hline Issue of products & 1 & 0.45 & 0.65 & 0.51 \\ \hline The way to the workplace & 7 & 0.24 & 1.24 & 1.03 \\ \hline Total & 14 & 0.92 & 3.01 & 2.4 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Time to dispense consumables with IoT. \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline  & **Price per Item** & **Average/Month** & **Monthly** & **Average/Month** & **Monthly Cost** \\  & **(EUR)** & **before IoT** & **Consumption** & **after IoT** & **Consumption** & **Saving in \%** \\  & & & **in EUR before** & & **in EUR after** & & \\  & & & **IoT** & & **IoT** & \\ \hline Cutting gloves & 4.19 & 213 & 893 & 169 & 708 & 20.7\% \\ A4587 size: 6 & & & & & & \\ \hline Cutting gloves & 4.19 & 899 & 3768 & 772 & 3235 & 14.2\% \\ A4587 size: 8 & & & & & & \\ \hline Cutting gloves & 4.19 & 1050 & 4397 & 883 & 3700 & 15.9\% \\ A4587 size: 10 & & & & & & \\ \hline ESD gloves C & 2.32 & 474 & 1100 & 425 & 986 & 10.4\% \\
1283 size: 6 & & & & & & \\ \hline ESD gloves C & 2.32 & 772 & 1790 & 614 & 1424 & 20.4\% \\
1283 size: 8 & & & & & & \\ \hline ESD gloves C & 2.32 & 26 & 61 & 20 & 46 & 23.6\% \\
1283 size: 10 & & & & & & \\ \hline Safety Glasses & 3.17 & 312 & 988 & 266 & 843 & 14.7\% \\ R41 & & & & & & \\ \hline Respiratory & 2.98 & 1120 & 3338 & 987 & 2941 & 11.9\% \\
9322+ & & & & & & \\ \hline Transparent tape 50 mm & 7.32 & 224 & 1637 & 183 & 1340 & 18.2\% \\ \hline High visibility & 9.45 & 137 & 1291 & 112 & 1058 & 18.0\% \\ tape 25 mm & & & & & \\ (Yellow) & & & & & \\ \hline Marker pen & 2.13 & 29 & 61 & 21 & 45 & 26.9\% \\ (black) & & & & & \\ \hline Marker pen & 2.13 & 3 & 7 & 3 & 6 & 12.9\% \\ (red) & & & & & & \\ \hline Marker pen & 2.13 & 1 & 3 & 1 & 2 & 25.0\% \\ (white) & & & & & & \\ \hline Total & & & 19,335 & & 16,335 & 15.5\% \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Comparison of consumption before and after the introduction of IoT. In the profit analysis (Table 6), we can see that, just by introducing vending machines, our direct costs per year decreased by almost EUR 35,000. Even more interesting, however, is the result of increasing the efficiency of the consumption of consumables and the subsequent saving of costs through the saved time of employees during the issue, which was worth EUR 181,827 per year, and cost savings worth EUR 25,654 associated with saving the time of buyers and storekeepers, by which we completely eliminated the work of ordering and expenses. Even after taking into account the costs associated with the rental of vending machines and their management, the annual cost savings for the SkyBlue company came to EUR 213,558. The company therefore decided to launch this project into full operation, with the temporary interest of expanding the portfolio to other types of goods. In the last phase of the research, we used the method of collecting opinions to ask SkyBlue employees how satisfied they are with the introduction of the service of issuing consumables through a vending machine with IoT technologies. _\"I am very satisfied with the current release. Consumables are available at any time and close to my workplace. I have more time for my work.\"_ Employee No. 1 (production operator)  
_\"The choice is easy, I don't have to fill out any papers and go beg someone.\"_ Employee No. 2 (production operator)