## 5 Results and Discussion
### Current Status and Setup Process  
For the first group of buildings we considered, this is apparent from the corresponding number of devices and measurement points that can be seen in Table 6. In all listed buildings, except the one indexed as number seven, EnOcean devices are used. Building number two (JSL) is equipped with KNX additionally. For buildings with indexes from number three to number nine, further KNX installations are currently in preparation. \begin{table}
\begin{tabular}{l c c c c c c c c c} \hline \hline
**Building Index** & **01** & **02** & **03** & **04** & **05** & **06** & **07** & **08** & **09** & **10** \\ \hline Existing KNX BACS & & & x & x & & x & & x \\ \hline \multicolumn{10}{c}{Equipped Rooms} \\ \# offices & 35 & 4 & 11 & 5 & 89 & 29 & TBD & 71 & 6 & 51 \\ \# meeting rooms & 0 & 1 & 0 & 1 & 3 & 0 & 0 & 3 & 0 & 0 \\ \# labs & 0 & 3 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 \\ \# kitchens & 2 & 1 & 1 & 0 & 0 & 1 & TBD & 4 & 0 & 3 \\ \hline \multicolumn{10}{c}{En/Ccean Devices} \\ \# multisensors & 37 & 4 & 12 & 7 & 89 & 35 & TBD & 70 & 6 & 54 \\ \# door state sensors & 30 & 23 & 14 & 7 & 92 & 39 & TBD & 71 & 16 & 59 \\ \# window state sensors & 0 & 38 & 52 & 28 & 0 & 234 & TBD & 0 & 10 & 164 \\ \# window handles & 55 & 0 & 4 & 0 & 246 & 0 & TBD & 180 & 0 & 0 \\ \(\sum\) sensors & 122 & 65 & 82 & 42 & 427 & 308 & TBD & 321 & 32 & 277 \\ \# heater actuators & 48 & 20 & 15\({}^{1}\) & 7\({}^{1}\) & 0 & 39\({}^{1}\) & TBD & 71\({}^{1}\) & 5\({}^{1}\) & 86\({}^{1}\) \\ \# light switches & 40 & 0 & 0 & 0 & 0 & 0 & TBD & 0 & 0 & 0 \\ \# switchable plugs & 0 & 0 & 32\({}^{1}\) & 15\({}^{1}\) & 125\({}^{1}\) & 86\({}^{1}\) & TBD & 98\({}^{1}\) & 0 & 0 \\ \multicolumn{10}{c}{E actuators} \\ \# shutsistors & 88 & 20 & 47\({}^{1}\) & 22\({}^{1}\) & 125\({}^{1}\) & 125\({}^{1}\) & TBD & 169\({}^{1}\) & 5\({}^{1}\) & 86\({}^{1}\) \\ \hline \multicolumn{10}{c}{KNX Devices} \\ \# multisensors & 9 & & & & & & & & \\ \# presence sensors & 12 & & & & & & & \\ \# person counters & 3 & & & & & & & \\ \# HMI & 9 & & & & & & & \\ \# electric power meters & 15 & & & & & & & \\ \# sensors & 48 & & & & & & & \\ \# heater actuators & 2 & & & & & & & \\ \# blinds actuators & 10 & & & & & & & \\ \# light dimmers & 12 & & & & & & & \\ \# light switches & 12 & & & & & & & \\ \(\sum\) actuators & 36 & & & & & & & & \\ \hline \hline \end{tabular} \({}^{1}\) Installation planned.  
\end{table} 
Table 6: Overview of preexisting, updated, and newly installed sensor and control networks for the buildings in Group 1. From the process of initial planning to the current status, we came across several aspects that could also help other researchers who want to deal with living labs in general or living labs in the context of buildings in particular. First, certain aspects relate more to technical issues. Specifically, when choosing a topology, a balance must be found between the various requirements and the preexisting status. For example, some buildings already have some technologies independent from the project. Furthermore, it is necessary to decide the level of involvement of the scientific staff in the field level of automation. In our case, the decision was made to involve the scientific staff in the field level, since this offers the advantage of granting them a deeper understanding of the system and increased control possibilities. At the same time, this implies the need to care about this low-level of automation. Additionally, it became clear that some components, which seem to be well-suited for the intended task with reference to the datasheet, did not perform as specified. This especially held true for devices we evaluated, in which cases the manufacturers did not comply with the standard specifications of the protocols. Secondly, organizational aspects are very important. One element here is the use of elaborate workflows, which we found to be very helpful after their development.