As part of the cooperation with the Stadtwerke Gießen, another use case for the LoRaWAN® network installed in Gießen was implemented on the ground floor of the town hall.
The focus is on pandemic monitoring of the number of people in the absentee ballot office. Only three voters should be in the polling station at any one time. This way, distance regulations and CO2 values can be observed and voters can safely visit the postal voting office.
The resulting "traffic light" is homegrown, but effective. The idea for the traffic light came from the head of the Office of Service, Information, Press and Elections. It was then implemented by Stadtwerke Gießen - and we at m2m Germany also contributed our share in hardware and software as part of our cooperation with SWG.
The way the absentee ballot system works is very simple: At the beginning of the corridor leading to the absentee ballot office, there is a screen. If access is free - i.e. there are fewer than three people in the postal voting office - the screen lights up green and asks the person wishing to vote by post to enter individually; as soon as a certain number of eligible voters have passed the screen, it then turns red and asks the voter to Please wait.
The whole thing is made possible by an infrared light barrier that is connected via LoRaWAN®. The recorded data - when someone passes the light barrier - converge on a specially programmed Thingsboard dashboard and play out the information accordingly. In addition to the display for visitors to the postal voting office, there is also a super admin view that runs directly in the voting office. This view can be used to correct the number of people present, so that only the number of voters is actually displayed, because when the employees of the election office enter their workplace in the morning, the system naturally also counts them as present.
This was also worth a report in the Gießener Allgemeine - you can read it here. can be read here.