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Technologies (Bluetooth, Ethernet, Wifi)

Wireless Connectivity The right technology for IoT
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SPIRIT1 RF TRANSCEIVER

ST’s SPIRIT1 transceiver is intended for RF wireless-sensor node applications in the sub-1
GHz band, such as Automatic Meter Infrastructure, alarm and security systems, home and
building automation, and industrial monitoring and control. It combines excellent receiver
sensitivity with a very low current consumption. Additional embedded features include a
“Listen-before-talk with”(CSMA/CA) engine, an AES-128-bit data encryption, error correction
and detection, FIFO memory blocks, as well as a highly flexible and programmable data packet
which contributes to further reducing the computational load of the host microcontroller and
the overall system power consumption. SPIRIT1 is designed to operate within the ISM and SRD
sub-1 GHz frequency bands namely at 169, 315, 433, 868, and 915 MHz. Several software
stacks are available, such as the 6LoWPAN protocol stack enabling low-power devices to
participate in the IoT, and the wireless M-Bus protocol stack (based on European standard
13757-4:2011.10) mainly addressing energy meter applications.

 

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Contemporary literature on disaster resilience of transportation infrastructure and seaports is reviewed. In general it is observed that there is still no widely accepted measure for resilience of transportation infrastructure for any mode of transportation.

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