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Why is the vehicle data delayed?

Issue Title

  • Delayed data

Issue Summary

Vehicle data is considered delayed when information from the tracking device reaches the platform later than expected. This can affect location, ignition, speed, and other vehicle parameters, resulting in the platform displaying older data instead of the vehicle's current status.

Symptoms / How to Identify

  • Vehicle information is not updating in real time.
  • The last received time is older than the expected update interval.
  • Vehicle location appears behind the vehicle's actual movement.
  • Ignition or speed status updates after a noticeable delay.
  • Data packets are received in batches instead of continuously.
  • The device may be online but the latest data is not displayed immediately.

Information Required Before Troubleshooting

Collect the following information:

  • Vehicle/Object name or ID
  • Device IMEI/Serial Number
  • Date and time when the delay was observed
  • Expected update interval
  • Actual data received time
  • Latest data packet received
  • Vehicle's actual location/status
  • Screenshot showing the delayed data
  • Whether the delay affects one vehicle or multiple vehicles

Troubleshooting Steps

A. Check on Device

  • Check device network connectivity.
  • Check whether the device is transmitting data at the expected interval.
  • Verify the timestamp generated by the device.
  • Check whether data is being stored and transmitted later.
  • Check SIM/network connectivity.
  • Verify device configuration and transmission interval.

B. Check in System

  • Check the device timestamp in Status/Raw Data.
  • Check the system received timestamp.
  • Compare both timestamps.
  • Check whether packets are being received continuously or in batches.
  • Verify whether multiple vehicles are experiencing the same delay.

C. Compare and Identify

  • Device generates/sends data late → device/network issue.
  • Device sends data on time but system receives it late → communication/server issue.
  • System receives data on time but displays it late → platform processing issue.

Possible Causes

  • Poor or unstable GSM/network connectivity.
  • Temporary loss of network coverage.
  • Device storing data and transmitting it later.
  • Incorrect device transmission interval.
  • Device configuration issue.
  • High network latency.
  • Device hardware or firmware issue.
  • Communication/protocol issue.
  • Platform/server-side processing delay.
  • Large volume of incoming data causing processing delays.

Resolution / Action

Verify the device's network connectivity, transmission interval, and latest raw data timestamps. If the device itself is sending data late, investigate the device, SIM/network, or configuration. If the device is sending data on time but the platform receives or displays it late, escalate the issue to the technical/platform team with the vehicle ID, IMEI, timestamps, and relevant raw data for further investigation.