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Fiber/Ethernet backbone with Wi-Fi access points | Analog leaky feeder backbone with conventional RFID tag readers | |
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| No wires for power |  |
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| No wires for communications | |
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| Self-organizing and self-healing | |
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| Immune to power failures or power cable damage | |
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| Immune to backbone communications cables damage | |
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| Ability to add, move or completely relocate network nodes dynamically | |
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| Ability to cost-effectively extend the wireless network into difficult to reach working areas | |
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| Ability to distance the last network node from the working face where blasting occurs | |
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| Ability to inter-network with analog leaky feeder | |
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| Ability to inter-network with Ethernet and fiber | |
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| RF range of terminal modem | < 600m (open space), < 175m (confined area) |
< 150m (open space), < 60m (confined area) |
< 100m (1 way RFID tag), < 30m (2 way data modem) |
| RF specifications of terminal modem | Frequency: 902-928MHz Spread Spectrum: FHSS TX power: +14dBm RX sensitivity: -105dBm |
Frequency: 2,400-2,485MHz Spread Spectrum: DSSS TX power: +17dBm RX sensitivity: -94dBm |
Frequency: 150/433MHz Spread Spectrum: none TX power: +30/10dBm RX sensitivity: -NA/92dBm |
| Total cost of ownership per area: | $$$ | $$$$$$$$$$$$$$$ | $$$$$$$$$$$$$$$ |
| Underground hardware (ruggedized, weatherproof, 12h+ battery backup) | $ | $$$$ | $$$ |
| Cables + connectors for power | - | $$ | $$ |
| Cables + connectors for backbone communication | - | $$$ | $$$ |
| Labor for installation and extension | $ | $$$$$ | $$$$ |
| Unavailability, downtime, maintenance | $ | $$$ | $$$$$ |
| Designed for: | Tracking(online),Texting, Telemetry |
High-speed data (low latency) | Voice, Tracking (offline) |
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Technology