# The Use of the Internet of Things in the Distribution Logistics of Consumables
## 3 Results
### Implementation Process and Operation Process  
The third phase of the research on the dispensing of consumables using vending machines with IoT technologies was to use the demonstration method to place vending machines in the SkyBlue company, on which we monitored the development of the monitored KPIs. The company DistriLog, in cooperation with the manufacturer of vending machines, installed five vending machines at the customer SkyBlue. The number of vending machines was designed based on the monthly consumption of individual items and the capacity of the vending machines. Vending machines were installed in frequented places within the production hall to be accessible to employees. The installation process consisted of several parts. The basic part was the creation of a database of employees in the vending machine, where each employee was assigned a unique code under which they were subsequently kept in the vending machine system. The RFID chip number was assigned to the unique code, with the help of which the employees could subsequently select consumables. This unique code also ensured compliance with the GDPR, to which employees are entitled. Employees were divided into groups according to cost centers (job classification), on the basis of which it was possible to collectively determine the requirements for consumables and set limits for individual positions, which prevented them from over selection. With this step, we eliminated the need for approval of each selection by superiors. The database of employees and products can be changed by the user as part of normal traffic. However, only the person authorized to perform this change has this authority. In the next part of the installation process, the delivery process was defined and all employees of the company were also retrained. The issuing process is shown in Figure 11. This has been significantly simplified and consists only of moving to the vending machine and selecting the consumables itself. Refilling of vending machines and taking care of vending machines is under the direction of DistriLog. Vending machines and the goods in them are the property of this company until the moment they are issued to employees. SkyBlue pays a monthly rent for the administration and rental of the vending machine. The result of the activity is one invoice for the goods consumed in a given month and one invoice for the rental of vending machines. Research using the demonstration method ended after 3 months of operation, during which the set KPIs were analyzed. The resulting KPIs are shown in Table 4, which shows the times of the individual phases of the expenditure. As we can see, the process was shortened from the original 13.33 min to 2.4 min. By making consumables available directly at the workplace, the influence of external factors that influenced employees' choice of consumables was reduced. Employee performance increased, which had an immediate impact on meeting company-wide production standards. Figure 11: Consumable dispensing process with IoT technologies. Table 5 shows the average consumption of monitored items. Using the comparison method, we found that consumption was reduced by 15.5%. The reduction in consumption can be justified by personalizing individual expenses and setting limits for individual positions. In the event that the SkyBlue company did not have an established approval of the expenditure of consumables in the past, we estimate possible savings at the level of 20-25%. We subsequently added the identified KPIs to the created profit analysis (Table 6), which gave us an overall view of the introduction of vending machines in the company.