YOKOGAWA Sushi Sensor Installation Manual Download Page 9

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TI 01W06A51-10EN

Evaluation of Communication

Stability

The RSSI, SNR, and PER values that can be viewed in the Application, on Sushi Sensor APP,

or on the gateway management 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 guidelines.

For details on how to evaluate communication stability before the threshold guidelines are

provided, contact our Sushi Sensor Information Service.

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...