Research Article
LED Context Lighting System in Residential Areas
Table 2
Comparison of current occupancy sensing technologies.
| | Type of sensor | Resolution | Number of occupants | Person identification | Person localization | Initial cost |
| | PIR | Low | No | No | No | Low | | Ultrasonic | Low | No | No | No | Low | | Microwave | Low | No | No | No | Low | | Sound | Low | No | No | No | Low | | Light barriers | Low | Yes | No | No | Low | | Video | Very high | Yes | Yes | Yes | High | | Biometric | High | Yes | Yes | No | High | | Piezoelectric | Low | No | No | No | Medium |
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