Ignition event validation enhancement
You can already do it using computed attributes, but I don't think it makes sense to hardcode some logic for it.
Compute attribute can override ignition value before event generate?
Yes, of course.
Thank you and do you have any plan to enhance on this event most GPS device rely on power voltage to determine ignition state
Can you please provide some research statistics to support your strong claims like that?
Voltage-based ignition detection is only one method and not widely used.
In my experience, most wired telematics devices support a dedicated ACC/ignition input, which provides a more accurate and reliable ignition status.
That's my understanding as well. I think most wired devices have a proper ignition input.
Yeah agree I'm using to experience with China device it has dedicate wire that connect to ACC but like I'm talk before I'm experience some vehicle has unstable voltage during driving that make ACC report wrong voltage that make device wrong calculate on ignition state.
Correct me if I miss understanding
The devices that have dedicated input for ignition don't get impacted by unstable voltage.
You may have a specific device/model, talk to your supplier the device maybe can be configured to resolve this at the device level.
Or you can use computed attributes like Anton recommended.
Ignition events should be validated using both ignition state and vehicle speed to reduce false ignition on/off events.
Based on experience with Teltonika devices, the ignition state is often determined from the vehicle power voltage. For example, if the minimum ignition voltage threshold is configured at 12.5 V, a measured voltage of 12.4 V will correctly trigger an ignition off event.
However, some vehicles experience unstable power voltage while driving. Temporary voltage drops can cause the device to incorrectly detect ignition off and then ignition on again, resulting in false events even though the engine remains running.
By validating ignition events against vehicle speed, these false events can be filtered out. If the vehicle is moving, sudden voltage fluctuations should not immediately generate ignition on/off events, improving the reliability and accuracy of event reporting.