There are some common reasons why data displayed on the portal appears to be missing. When a Fusion Mini is deployed and turned on, once the initial bootup has happened, the power light on the Fusion Mini should blink green every few seconds. Sometimes this happens but data doesn't appear or is not complete.
This could be due to battery issues, Fusion Minis being moved, or sensors being changed among others.
I've turned my Fusion Mini on but no data has come through
- The Fusion Mini has not been set up correctly. It's possible the antennas have not been screwed into the correct places or have not been screwed in tightly enough. In the box that the Fusion Mini comes in is a quick start guide that describes where the antennas go, so it's wise to double-check that. It could also be a result of the antenna not being screwed in tightly enough. While the antennas should be finger-tightened properly, they should not be overtightened as this can exacerbate the issue. This article demonstrates the correct antenna position.
- The physical Fusion Mini setup has been altered. The Fusion Mini is designed in a way that helps the unit communicate with the Swarm network and is tested in this configuration before shipping. All satellite transmitting devices require a ground plane to make regular satellite communications. Moving things on or removing things from the enclosure can affect this. The bottom of this article explains this in more detail.
All Sensor and Telemetry Data stops appearing in the portal and then resumes randomly
- The Fusion Mini has gone into UVLO (Under Voltage Lockout) due to the battery running out of charge. The Fusion Mini will go into UVLO when the battery voltage goes under 3.4V. This can be seen on your Fusion Mini when the latest battery readings on the portal are getting closer to 3.4V. UVLO is designed to protect the battery from over-discharge. On all CM Fusion Minis, once the unit has received charging through the solar panel, it will resume data collection and transmission automatically. During UVLO, the Fusion Mini does not store sensor data. When the unit starts transmitting again, you will see a straight line between two data points that are further apart than normal.
- The Swarm satellite connection is patchy. If the Fusion Mini is unable to get a connection to the Swarm satellites, it will cause a backlog in transmissions. The Fusion Mini will drop sensor readings over 48 hours if they are unable to be transmitted and this can cause missing data points on the graphs. Placement of the Fusion Mini with access to as much sky as possible will help alleviate this issue. This article describes how obstructions can affect transmissions. The previous issue combined with the default sampling rate of 15 mins can cause backlogs. This article describes how the sensor readings are sampled, packaged, and sent to the FreeWave Portal and also describes how to change the sampling intervals to send less frequent data if you cannot move the Fusion Mini. If using RS-485 sensors, RS-485 extension cables can be used to lengthen the cable between the sensor and the Fusion Mini.
Some but not all of the data is coming through but some don't or are intermittent
- Bluetooth sensors are obstructed or are too far away. When using Bluetooth, there should be minimal obstructions between the Fusion Mini and the sensors. While an obstruction will not necessarily result in data loss, it can reduce the distance the sensor is effective for. In an apiary setting, hives can reduce the effective Bluetooth range to between 30-50m. This can be diagnosed by observing the signal strength on the dashboard. When the Bluetooth signal is impacted severely, the signal level will be red or missing/empty. This means the sensor may need to be moved closer to the Fusion Mini.
- RS-485 sensors have been detached and re-attached. Sometimes it may be necessary to move a Fusion Mini due to a variety of factors. When your Fusion Mini is shipped along with a sensor, the Fusion Mini RS-485 ports are preconfigured with the specific sensor type. It is also labelled on the Fusion Mini itself as to which sensor should be plugged in. It is recommended that you follow the labelling on the Fusion Mini for the correct sensor. If the sensors are moved into the wrong ports, you will begin to see sensor readings with different "last seen" times. The below example demonstrates this. The water level sensor which is configured for this Fusion Mini has been plugged into a different Fusion Mini. While the sensors currently attached to this Fusion Mini are functioning correctly, it still shows the water level as that's what the Fusion Mini is expecting to see. The port assignments can be changed on the FreeWave App if required and this article explains that process. If the widgets on the dashboard do not change the visuals for the correct sensors, please contact firstname.lastname@example.org