How do WiFi, GSM, and GPS localization work?
The location of the KADDZ collar is determined with WiFi, GSM, and GPS. But how exactly does it work and how is this location technology used at KADDZ?
The WiFi-based location calculates the position based on wireless network signals. The more local network signals the collar detects, the better the calculation of your own location works. In urban areas, you usually receive numerous WLAN signals from commercial hotspots, company networks, or private homes.
WiFi is commonly used for wireless local area networks. All you need for WiFi is a router that you can usually get from your internet provider.
In the KADDZ app, your own home WiFi is used to switch the status to "at home" as soon as the collar detects the home WiFi. It is, therefore, possible that the cat is sitting outside on the balcony, but is displayed in the app as "at home".
If the collar does not find the home WiFi, it searches for GPS positions. In spaces with bad or no WiFi reception - typically garages, cellars, or attics - the cat may be shown as "outside" in the app, even though it is in a building.
Every mobile phone uses GSM (Global System for Mobile Communication) to determine its own location as soon as it is switched on and registered in a mobile network. This is how the user receives location-related information regarding restaurants, cinemas, public transport, etc. that are nearby.
The location display of your cell phone is shown as a blue dot in the KADDZ app. This location is defined by the smartphone and its WiFi settings.
The KADDZ app uses this GSM-based location information on the map overview. If the search function is active, it even shows the distance of your own location in relation to the object you are looking for (the cat wearing the KADDZ collar).
GPS (Global Positioning System) is a global navigation satellite system. GPS location is based on satellites that constantly broadcast their current position with coded radio signals. The location of the GPS receiver (in our case the KADDZ GPS cat collar) can be determined by the signal from the satellites.
The KADDZ GPS tracking collar sends this position data to the KADDZ app using a built-in SIM card, where the location is shown on an electronic map. To determine a clear GPS position, a signal from at least three satellites is required. However, the signal strength is too weak to be able to determine a position in buildings. For this reason, and to save battery lifetime, the KADDZ collar will switch to the WiFi network when the cat comes home, or the GPS signals are too weak.