3
TI 01W06A51-10EN
2.
Installation Guide
2.1
Gateway Installation Guide
This section describes how to install a gateway.
LoRaWAN only supports star-type networks. In general, the installation location of the Sushi
Sensor is determined by the location of the measuring target. For this reason, the manner
of installing the Sushi Sensor is restricted. Therefore, in order to achieve stable LoRaWAN
communication, it is essential that the gateway is appropriately installed.
1. Install the gateway in a location that is as high as possible.
2. Install the antenna perpendicular to the ground.
3. Install the LoRaWAN antenna above the gateway installation pole.
4. Install the gateway in a location where there are as few obstacles as possible.
5. Install the gateway in a location where there are no other wireless system devices that
use the same frequency band in its vicinity.
1. Install the gateway in a location that is as high as possible.
Install the gateway in an elevated location such as a building rooftop from which the Sushi
Sensor installation area can be seen. The higher the location the gateway is installed in, the
less wireless communications will be interfered with by structures in surrounding areas. This
will lead to improved reception. When you want to achieve a communication distance of one
kilometer, you should install the gateway 20 meters or more above the ground. However,
when the gateway is installed in an elevated location, lightning-related risks will increase.
To avoid such risks, install the gateway within the protective range of a lightning rod. In
addition, ground the gateway in accordance with its instruction manual.
2. Install the antenna perpendicular to the ground.
The antenna of a general LoRaWAN gateway used in the Sushi Sensor system is designed
so that the quality of wireless communications reaches the utmost level when the antenna is
installed perpendicular to the ground.
3. Install the LoRaWAN antenna above the gateway installation pole.
Metallic structures close to the antenna may have significant effects on LoRaWAN
communication. When installing the gateway on a metallic pole, set up the pole at a lower
position than the LoRaWAN antenna of the gateway.
4. Install the gateway in a location where there are as few obstacles as possible.
If there are any structures near the gateway, wireless signal waves sent from the gateway
may reflect off the structures and may interfere with a different stream of the sent waves.
To avoid this problem, install the gateway in a location where there are no structures in a
horizontal orientation within its vicinity. Note that even an obstacle opposite the sensor may
cause interference.
Mar.26,2019-00
