Читать книгу The Digital Transformation of Logistics - Группа авторов - Страница 49

Based on the application of the data, the means of connecting the Things can be done in an active or passive way. Active means that data is actively sent out from the Thing. This might be necessary if the condition of the Thing changes quickly, and the knowledge about these changes is decisive for the next step, such as the coordination of many transport devices in a warehouse to avoid collisions. To actively send out data, more technologies and especially energy supplies are necessary that might limit the device size and the usage lifetime and require additional services such as exchanging or charging of batteries. In contrast, if conditions are relatively stable or the intended application is purely identification, a passive mode might be sufficient. In a passive mode, the Thing reveals its data when it is triggered from the outside, just as when a box labeled with a barcode passes through a barcode reader.