ROHM SEMICONDUCTOR 2022
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Figure 6: Communication Success Rate vs Communication Frequency (Source: ROHM)
(Wi-SUN Enhanced HAN end device mode) utilizing the
same 920MH specified low power band. This allows
operation for over ten years with battery-equipped smart
meters (i.e. gas, water).
2. Ensures high reliability communication even in areas
with mixed applications
With standard low-power wireless communication, once
initiated the transmitter continues to operate, but with
Wi-SUN JUTA receiving operation is carried out until
the beacon is caught, during which no transmission
operation is performed. As a result, even when the
number of communication operations increases the radio
wave occupancy time is unlikely to rise, providing stable
communication.
ROHM Wireless Communication Module Features:
1. Enables configuration of high reliability mesh networks
ROHM's module supports multi-hop (relay) communication
of up to four hops, allowing users to build mesh networks
that avoid obstacles by continuously reconfiguring the
route until it reaches the destination.
2. Integrated security function
The built-in security function enables communication
encryption and security key updates on the wireless
communication module side, making It possible to easily
perform secure communication without the need for
complicated processing at the host side.
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Life Monitoring Service is a smart
home service that allows remote
monitoring of children and the elderly
by checking window and door locks
as well as people entering and exiting
using a smartphone.
