Skip to main content

Why does my logger not upload data in real-time?

In this section:

The logger uploads data every time it connects to the Cloud. An attempt to connect to the Cloud is called a wake-up. When a logger is not in a shipment, it follows an internal wake-up schedule (standby mode).

While in a shipment, the logger generally follows the wake-up interval (i.e., the frequency of wake-up) that was set for the shipment. This means that in a shipment for which the wake-up interval was set to 1 hour, the logger will connect to the Cloud every hour and upload data with every hourly wake-up. The wake-up interval selected for the shipment will overwrite the internal wake-up schedule that the logger follows in standby mode.

There could be instances in which the logger does not connect to the Cloud with the frequency set for the shipment. The reasons for this include:

Delay related to shipment creation flow

If a shipment is created and manually marked as shipped in Controlant’s SCM portal or through integration, the logger will not be aware that it’s in a shipment and/or shipped until it connects to the Cloud and receives this information. The logger will attempt to connect to the Cloud within 12 hours, depending on the following conditions:

  • If the logger is in standby mode and no button was pushed within 5 hours since the shipment was created, the logger will follow its internal wake-up schedule and will attempt to connect within 12 hours.

    Note

    If the logger is on a flight at the time of its scheduled wake-up, the delay will be extended.

  • If a button was pushed within 5 hours before the shipment was created, the logger should connect hourly as a result of the button push, and it will receive shipment information in the first wake-up after shipment creation.

If such a delay related to shipment creation flow occurs, the status of the logger in the shipment in Controlant’s SCM portal will be Shipping with syncing icon. This means that although the status of the logger in the portal is set to Shipping, the logger has not yet synced this information.

Device is in Flight Mode

While they are in Flight Mode, loggers will not connect to the Controlant Cloud and upload data.

When a logger in a shipment detects a landing event, it will attempt to connect to the Controlant Cloud outside of the scheduled wake-up and upload data. From that moment, it will follow the wake-up schedule for the shipment.

In case the logger does not detect the landing, it will remain in flight mode for 18 hours and attempt to connect at the next scheduled wake-up for the shipment.

Device is in Low Power Mode

When the battery level goes below 10%, the device enters Low Power Mode:

  • In Low Power Mode, the device switches to 24 hour wake-up interval, whether in shipping mode or standby mode.

When the battery level goes below 5%, the device enters Hibernation Mode:

  • In Hibernation Mode, the device suspends everything except measuring temperature every 10 minutes.

The display indicates Low power mode or Hibernate mode with a full-screen service message:

Low power mode. The logger is now in low power mode. Please charge the device.

To resume normal operation of the device, charge to at least 15% battery.

Device has poor signal strength

The logger uses 2G/3G and 4G (LTE) networks to connect to the Cloud. The logger will try to connect to the Cloud at its scheduled wake-up and when an alarm in a shipment is triggered. If the logger cannot connect to the network at the scheduled wake-up time, the logger will wait for the next scheduled wake-up to retry.

The logger uses mobile networks to connect, and connectivity depends on several external factors, including:

  • Availability of cell towers in the area.

  • Density of traffic on the cellular network, and surroundings (for example, liquids, metals, and concrete may negatively affect cellular connectivity).

    • For example, sometimes when driving through a rural area, you might lose the possibility to connect to a cellular network, and the same applies to connectivity issues at big events and gatherings of people.