SGS SWH Movement Sensor Device User Manual

SGS SWH Movement Sensor Device

PRODUCT INTRODUCTION

Movement Sensor Device is a device designed to measure parameters that detect possible movement in the grain and generates an alarm. The device consists of a board with an accelerometer that transmits data via LoRaWAN technology. The main purpose of the device is to obtain these acceleration values when the device moves. The whole device is shown in following figure:

MAIN FEATURES
The Movement Sensor Device has the following features:

• Compliance with LoRaWAN technology
• Frequency band: EU 868 / US 915 / AS 923 / AU 915 / KR 920 / IN 865 / RU 864
• Replace AA batteries 1.5V/Lithium 3.0V/3.6V
• Environment resistance: IP65
• Case dimensions: TBD.

LORAWAN SENSOR
The following picture shows an overview of the movement sensor device.

1. Reed Sensor
2. Battery

QUICK START GUIDE

The main steps are listed for quick use. Please refer to the following sections for more details.

INSTALLATION
To carry out the installation of the device, perform the following steps.

1. Checklist
   Unpack the package, check the part list to ensure nothing is missing.

2. Activate the device
   By default, the device is deactivated. To activate it, pass the magnet for 3 seconds in the reed area (one beep per second will be generated). When it is connected to the LoRa gateway, the device will emit a long beep and will send the first frame.

3. Check the device is connected and sending data
   You can check the status of the device by passing the magnet for one second, after that:

   • If it beeps 3 times, it will indicate that it is working and will send a frame.
   • If it beeps 5 times, it is deactivated.

CONFIGURATION
The device is already configured so it does not need it to carry out the configuration.

LORAWAN SENSOR INSTALLATION

In this section, the installation process of the device is explained. Before installing, please check the part list to ensure nothing is missing.

PACKING LIST

• Case 1
• Case 2
• Magnet

LORAWAN SENSOR CONFIGURATION

In this section, the configuration of the device is explained.

DEFAULT CONFIGURATION
By default, the device is deactivated. To activate it, pass the magnet for 3 seconds in the reed area (one beep per second will be generated). When it is connected to the LoRa gateway, the device will emit a long beep and will send the first frame.
From that moment on, the device will only send data in the following situations:

• If the time set to perform a keep-alive arrives, indicating that the device is still working.
• If the magnet is passed over the reed for 3 consecutive seconds.
  If the device moves and the accelerometer alarm is triggered, send a message when it starts to move and another one when it finishes moving within a 5-second window.

To deactivate the device, the magnet must be passed for 5 seconds, after this, the device will send a deactivation frame and will go to sleep.

DOWNLINK COMMANDS TO CHANGE THE CONFIGURATION
It is possible to change the configuration of the device through the LoRa gateway via downlink frames. You can check if the downlink has been correctly sent because the led will light up blue. The following are the different payloads for the GCM v3 device:
Time Update (Little Endian)
To change the date and time of the device send a 4 byte frame with desired value in UNIX Timestamp on Port 4.
Example:

• Fri Oct 15 2021 06:45:14 GMT+0000
• 1634280314
• 6169237A
  7A 23 69 61

Change transmission windows (Little endian)
To change the times at which the device sends data send a 2 byte frame with desired value in minutes (UTC Time) on Port 5.
Example:

• Sending at 00:00 / 12:00
• 0 / 720 (Minutes)
• 0 / 2D0 (Big Endian)
• 00 00 / D0 02 (Little Endian)

Change region
To change the region in which the device must operate, send 1 byte on Port 6.

• REGION_AS923 → 00
• REGION_AU915 → 01
• REGION_EU868 → 05
• REGION_KR920 → 06
• REGION_IN865 → 07
• REGION_US915 → 08
• REGION_RU864 → 09

Change keys
To modify ABP or OTAA keys send 1 byte with activation mode 01 or 02 respectively and then 16+16 bytes according to the table on Port 7.

Change JoinEUI
To modify JoinEUI send 8 bytes with the new value on Port 8.

Change ACK
To disable or enable the ACK send by the gateway screen you have to send 1 byte (00 / 01) respectively on Port 9.
Test
To show the downlink message via UART send the ‘x’ bytes on Port 10.
Accelerometer configuration
To configure the accelerometer you have to send 4 bytes (according to the table) on Port 11.

Accelerometer RAW configuration
To configure the registers of the accelerometer you have to send blocks of 2 bytes (according to the table) on Port 12.
Example:

• Default configuration: 20 27 21 01 22 40 23 00 24 08 25 00 30 7F 32 1A 33 01
• ODR to 5276 Hz: 20 97 21 01 22 40 23 00 24 08 25 00 30 7F 32 1A 33 01

SAFETY PRECAUTIONS

Follow the next safety instructions:

• Never submerge the device in any liquid.

• Keep the device in a dry place and away from any liquids that might spill.

• Do not let the electronic parts come into contact with any steel elements, to avoid injuries and burns.

• The gateway must not be modeled in any way.

• Do not place the gateway where the temperature is below/above the operating range.

• Do not place the gateway close to objects with naked flames, heat source (oven or sunlight), cold source, liquid, and extreme temperature changes.

• Do not power on the gateway or connect it to another electrical device when installing.
  Check lighting and water protection when used outdoors.

• Do not connect or power the equipment using cables that have been damaged.

• Do not clean the gateway with detergents or solvents such as benzene or alcohol. To clean the device, wipe with a soft moistened cloth. Use another soft, dry cloth to wipe dry.

FCC Information:
Please take attention that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment This device complies with Part 15 of the FCC Rules. Its operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

SGS – IOT COMPETENCE CENTER
This document and the information contained in it are confidential and are the property of Société Générale de Surveillance (SGS). They may not in any way be disclosed, copied, or used by anyone except as expressly authorized by SGS. The document should always be kept in a secure place and should be destroyed or returned to SGS when it is no longer needed.

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>