52X52 Wifi WIFI


In general, WiFi is used for wireless networks to allow us to access a network and the internet. By using radio waves, we can send also WiFi data between the network and ID Tags. The strength of WiFi signals can be used to determine distances, which can be used to determine specific positions.

The selection of WiFi tracking technology is primarily based on two things:

Network positioning versus device positioning

In the case of network positioning, the signal strength of the network is measured and recorded and in the case of device positioning, measurements of the device itself are recorded.

The advantage of network positioning is that it does not require the installation of software on the special devices or ID Tags. The advantage of device positioning is that the device or ID Tag does not need to be connected to the net to show its position.

High precision versus short delay

More precise positioning of the device requires more complex calculation modelling. The disadvantage of a complex model is that it may require several calculations to execute and therefore will take longer to report the positioning.

In the case of items like beds that are often stationary for longer periods of time this is not a problem but in the case of items that are frequently moved, for example trolleys, there may be a delay in getting a position and this may be irritating to users.






  • Uses existing WiFi infrastructure
  • In addition to WiFi tags, WiFi devices like smartphones and PCs can also be located
  • Allows for data exchange and voice communication
  • Not all infrastructures or installations are well-suited
  • High precision requires calibration in several locations
  • Affected by changes in the environment
  • Cost of ID Tags


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