Table 1 Comparative table of proposed design versus related designs
System | A | B | C | D | E |
|---|---|---|---|---|---|
AUTHOR | Okafor et al. [proposed system | Choudry et al. [28] | Yadav et al. [30] | Khan et al. [32] | Rashid et al. [31] |
Dual sim (redundancy) | Yes | No | No | No | No |
Reliability | Yes | Yes | Yes | Yes | Yes |
Trigger | Voice command | Push button | Trigger button | PIR SENSOR | Voice command |
Voice/speech identification | Authenticated keyword only | N/A | N/A | N/A | Authenticated user only |
Security priority | Human | Human | Human | Property | Human & property |
Internet connectivity | No | No | Yes | No | No |
Internet cost | N/A | N/A | Very high | N/A | N/A |
Alert mode | SMS | SMS | SMS | SMS | N/A |
Emergency action | Yes | No | No | No | No |