Table 2 Complementary sensors derived from smart devices
From: Modern smart device-based concept of sensoric networks
Type and unit | Description |
|---|---|
GPS (latitude, longitude) | Location sensor of global positioning system where the minimal three different satellite signals are required [19]. The coordinates are calculated by trilateration [13] but outdoors only |
Cell GSM (dB) | Location sensor of global system for mobile communication signal measuring where coordinates are estimated over multilateration [14, 15] within outdoors or indoors |
Wireless (dB) | Location sensor type, where signal of access point results within external knowledge base in dynamic location monitoring. |
Microphone (dB) | Environmental sensor of noise level where a signal-to-noise ratio technique is appropriate for environment evaluation |
Camera (pixel) | Alternative way of a light sensor but with another applicability, as face or object recognition is out of energy scope |
Battery capacity (%) | Sensor for smart reminding to charge in specific environment and smart battery management |
Power plug-in (bool) | In building environment recognition |