Simulation of hospital case in test area

between spaces, e.g. stairs, door, elevator, instead of the space itself in the case of localizing Kruminaite, 2014.

3. DIVISION OF THE FLOOR PLAN

3.1 Simulation of hospital case in test area

For the experiments a test building was selected, which already had the Quuppa system installed. The building has three zones, which are called Theatre, Business- and Play zone. The dimension of the zones is comparable to that of rooms and closed spaces in a hospital. The ceiling height corresponds to the height of a regular office building, which is approximately 3m. As the testing could not be done in the hospital itself, the data from the test area and test setup have been used for the analyses. For the use case it is important to have similar data compared to when the testing would have been carried out in the hospital. For this reason, a simulation of the routine of the assets described in the use case was performed in the test area. A number of test cases are defined to use the position data collected in the test area, as input to measure the performance of localization in the hospital. Figure 2: Impressions of different areas in the test facility: Play Zone left, Business Zone middle and Theatre right For every test case the performance of the measurements is calculated and localization is performed. One of four scenarios based on the accuracy and precision of the measurements is selected for each of the six test cases. The performance of the location is indicated by the amount of measurements that are located correctly based on the situation described in the test case. Localization of a position measurement can either be correct or incorrect. For correct localization of the points that would be wrongly assigned to a location, the performance value can be used. Based on the performance, a model for correcting the coordinates of the point measurement is described. Figure 3: Range of the individual receivers on the floor, based on the conical angle The theoretical range of the receivers is based on the installation height and the conical angle of the antenna of the receivers. In Figure 3 is shown to what extent the theoretical range covers the floor plan. In this situation the influences from the environment on the coverage are not taken into account. In Figure 4 the area of the floor plan covered by the receivers is shown in green where the performance of the system is expected to be according to the requirements of the use case. Figure 4: Tags in the green area are expected to return the positions with acceptable performance

3.2 Types for subdivision