background image

6

TI 01W06A51-10EN

3. 

Maximum Communication Distance

When the gateway is installed as instructed in this guide, typical maximum communication 

distances between the Sushi Sensor and the gateway are as shown below. The actual maximum 

communication distance is affected not only by the visibility level but also by the environment of 

the installation location.

Case

Visibility level

Installation environment example

Typical maximum 

communication 

distance [*1]

I

A sufficient level of visibility is 

ensured between the gateway and 

the Sushi Sensor.

Along a large river or coast

Oil drilling well, pipeline

Up to 7 km

II

Outdoor locations where a sufficient 

level of visibility cannot be ensured 

between the gateway and the Sushi 

Sensor

Various plant environments

(Tank yard, pipe jungle)

1km

III

Installations in environments where 

the sensor is completely surrounded 

by structures (including indoor 

installations)

Installations in a complete "shield" 

such as the inside of an enclosure, 

indoor production facility, and the 

inside of a building

Varies depending 

o n   i n s t a l l a t i o n 

conditions.

[*1]  This table shows the maximum communication distance values when Yokogawa Wireless Vibration Sensor (XS770A) is used as 

a Sushi Sensor.

If long-distance communication cannot be established between the Sushi Sensor and the 

gateway, no communications can be established because the Sushi Sensor is installed indoors, 

or communications are consistently unstable, consider installing an additional gateway.

Mar.26,2019-00

Summary of Contents for Sushi Sensor

Page 1: ...9 32 Nakacho Musashino shi Tokyo 180 8750 Japan Tel 81 422 52 5885 Fax 81 422 52 2102 Contents Introduction 1 1 About LoRaWAN 2 2 Installation Guide 3 2 1 Gateway Installation Guide 3 2 2 Sushi Senso...

Page 2: ...ibed in this guide you will be able to use sensors without the need to carry out any prior investigations Trademarks Sushi Sensor is a registered trademark or trademarks of Yokogawa Electric Corporati...

Page 3: ...ereby simplifying installation and maintenance procedures The Sushi Sensor creates a simple star type network in which sensors directly connect to the gateway The Sushi Sensor sends sensed data to the...

Page 4: ...tion 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...

Page 5: ...icted The installation location of the Sushi Sensor depends on the location of the measuring target therefore in some cases it is difficult to raise communication quality by making any improvements to...

Page 6: ...the LoRaWAN device installed near an existing device falls below the required level Devices Standards to comply with Required immunity level Offset distance Devices for heavy industrial environments...

Page 7: ...evel of visibility cannot be ensured between the gateway and the Sushi Sensor Various plant environments Tank yard pipe jungle 1km III Installations in environments where the sensor is completely surr...

Page 8: ...rside or seashore Oil drilling well Pipeline Broad flat area Examples of case II Outdoor plant environment pipe jungle Tank yard Mine raw materials storage yard Belt conveyor Examples of case III Indo...

Page 9: ...anagement screen are important indexes used to evaluate communication stability In a future revision of this document specific thresholds for evaluating communication status will be included as guidel...

Page 10: ...gement screen For details on the checking method refer to the instruction manual of the Application each sensor or gateway SNR Signal Noise Ratio Indicates the ratio of the strength of wireless signal...

Page 11: ...s judged that sending has failed The Sushi Sensor resends the packets when sending has failed When the PER value is low it is judged that the communication is successful with fewer number of data tran...

Page 12: ...11 TI 01W06A51 10EN Revision Information Title Sushi Sensor System LoRaWAN Installation Guide Manual number TI 01W06A51 10EN Edition Date Revised Item 1st March 2019 New issue Mar 26 2019 00...

Reviews: