This feature describes a new web app that is designed to work with a special toolkit, which enables users to update their stock nodes (SN3) to the latest firmware through an easy-to-use web UI.

1.0 Toolkit

The Toolkit used for the offline OTAP process consists of,

• Rigado-Cascade IoT Gateway specially configured for offline OTAP Purposes will- be referred to as the “offline gateway” in this document and it is provided by ORT.

• 2 X SN3 power jigs provided by ORT (Figure 2).

• 2-pin connectors (only used when upgrading detached sensor nodes). Click here for more info about the connectors.

• Power Supply Units (PSU) to power the nodes - available in both Europe / UK plug types.

• A computer.

2.0 Pre-requisites

Things to be considered before starting the offline OTAP Process:

• Contact ORT to check if the portable (offline) Gateway is updated with the latest version.

• Make sure to power off any other gateways within the communication range. This is mandatory to force all the nodes to connect to the offline gateway only.

• Please make sure the laptop/computer is always ON during the Upgrade.

• This toolkit is designed to upgrade 126 SN3s only (63 nodes per power jig) through one gateway at a time.

• Offline OTAP process can only support upgrading the sensor nodes to firmware version 186. It is currently unable to support any Wirepas 5 updates.

3.0 Instruction to Place SN3 on Power Jig

The SN3 power jig should work together with a Power Supply Unit (PSU), as you can see in Figure 1, and you will get a UK plug if it is used in the UK.

Open

Figure 1. SN3 Power Jig and PSU (Europe Plug)

The power jig has 7x18 probe pins, which can power 63 SN3s at a time. Make sure you do not connect the mains’ power to the power jig when you are seating SN3s.

Open

Figure 2. SN3 Power Jig (Jig Board)

This is what it looks like when all SN3s are seated.

Another angle is shown below. All 63 SN3s are ready for upgrade, and you can connect the mains’ power to the jig now.

3.1 Instruction to place the Detached Sensor Nodes (DNS) on Power Jig

To connect DSN3s to a power jig, you need CH2 cable connectors, as shown below.

You can order the connectors from amazon (Sweden) or amazon (UK).

The power jig has 7X18 probe pins, which can power 63 sensor nodes at a time. Seat the connectors to the probe pins as shown below, 9 connectors are seated to the pins, and you can seat up to 63 connectors.

This is what it looks like when some DSN3s are connected. Of course, you can connect more.

You can now connect the mains’ power to the jig. Please make sure the jig with connected DSNs should be placed at a level surface,  without moving during the whole upgrade process.

After finishing an upgrade, please disconnect the mains’ power, then release the wires from the connectors by pressing the release buttons, and you can have another set of DSN3 be upgraded.

4.0 Nodes Upgrading Process

4.1 Initial Setup

1- Plug in the portable gateway to a power outlet. Please note that the Internet connection is not required here (i.e. no Ethernet cable is required).

2- Turn off any other gateways within the same communication range.

3- Connect the nodes to the Jig board (please follow the instructions above) and wait for 5 minutes for the mesh to be formed.

4- Connect your computer to the offline gateway’s Wifi (Wifi Name: ort_gateway*** / password: password1).

5- To access the offline OTAP user interface (UI), open the browser from your PC and paste this URL http://10.0.60.1:9004/. Figure 10 shows the home page of the UI.

6- Advance mode menu: Click on the “advanced mode” button located at the left top corner of the UI to view more detailed scan information. (Figure 11).

7- Identify the nodes: If you want to visually identify the selected node(s) to make sure they are connected properly to the jig, you can simply click on “Identify Nodes” (Figure 12) this will force the red dome of the selected node to lit red for 60 sec.

8- Start scanning for nodes.

4.2 Start the Upgrade

Start upgrading the nodes by following the below steps:

• When in upgrade menu expand the view by clicking on down arrow on the right hand side next to Upgrade x nodes option. A menu will be displayed where you can select the upgrade options (either All or Nordic only). Also, you can select the Updater, PIC and Nordic versions as shown in Figures 16 and 17.

• Click on “All” to run a full firmware upgrade (Updater, PIC and Nordic, in that sequence) as shown in Figure 14.

• Click on “Nordic Only” if you wish to run a Nordic upgrade only.

• If you are upgrading the stock nodes, toggle on the “Reset Nodes to Factory defaults” to reset the nodes to their factory settings when the upgrade process is finished.

• Click on the “Upgrade nodes” button to initiate the upgrade process (Figure 18).

• Wait until the upgrade process is completed. The upgrade process might take around 2 hours to be completed depending on the number of nodes.

• Click on the top left corner menu “Advance mode” and then select the “Upgrade Nodes” column to monitor the upgrade status and to view the logs for each node.
  The status of the Updater, PIC and Nordic for each selected node will be displayed as a color indicator as shown below,
  Yellow - The process is initiated

  Orange - Upgrade is in progress

  Green - Successful upgrade
  Red - Unsuccessful upgrade

   

Examples can be seen in Figures 19, 20, 21 and 22.

• To view the upgrade logs, you click on the log icon. This will provide more advanced information about what is actually happening behind the scenes during the upgrade process.

• Click on “Sinks” to Display detailed information about the gateway (Figure 24).

• OTAP process is completed (Figure 25).

5.0 BLE Scanning

The UI allows you to control the BLE scanning for the scanned sensor nodes. Click on the left-hand side menu for the nodes to perform the following functions (Figure 26),

1. Get BLE status: Displays the information about the current BLE status (Blue means ON, Grey means OFF, a Question mark means the query is under process).

2. Turn on BLE scanning: turns on BLE scanning of the node manually.

3. Turn off BLE scanning: turns off BLE scanning of the node manually.

6.0 Reset to factory default settings

If you have already enabled the “Reset nodes to factory defaults” option, the nodes will be automatically reset to their factory settings after the upgrade. However, if you wish to do this process manually, you can simply select all the nodes or some of them and then click on “Factory Reset” from the burger menu.

Upon sending the factory reset command, the Red dome of the sensor nodes will flash once rapidly followed by 2 long flashes. (See full factory reset led sequence here)