The current requirements for the protection of visitors and organisers include not only a detailed hygiene concept but also a restriction on the number of visitors: Here, the guidelines and guidelines of the individual federal states apply. Since no one can predict how the number of cases will develop and which decisions are deemed necessary to contain the pandemic, limiting visitor numbers is probably one of the longer-term measures.
During a day of trade fairs, numerous visitors enter and leave the premises, so the exact determination of the attendance rate is a significant challenge. While smaller retailers and similar companies handle the flow of visitors by hand with temporary measures, such as the number of shopping carts or similar counted utensils, this is not a sensible procedure for larger events such as trade fairs or exhibitions. Apart from the demanding hygienic implementation, it's difficult for these strategies to keep track of all the visitors reliably.
In particular, visitors who leave the premises several times and re-enter the premises can only be covered to a limited extent by similar measures. This task is often given to security teams – a far from a happy assignment. If additional staff are hired for this purpose, additional costs will be incurred. How much safer, more reliable and also more efficient would a professional solution be?