Lightning sensor too many disturber detection problem
Menglex.Quz 2024-08-06 05:05:43 582 Views4 Replies Hello,
We encountered a problem whereby the AS3935 sensor was behaving normally when it was first put together, even producing the correct “lightning detected” message when we used a lighter ignition to imitate the lightning phenomenon ( as suggested in a guide : ). But after a while without any particular change to the set-up or environment, it starts to produce “disturber discovered” message constantly, which do not change even if we ignited a lighter right next to it.
The sensor even spit put “disturber” when we just put our hand next to it when we use the default settings.
Then I played around the few noise-related parameters, and the best result I could get is with sensor.set_noise_floor_lv1 to 7 and sensor.set_watchdog_threshold to 6. With these numbers the sensor detect any close electronic objects as disturber, but still we cannot replicate the lightning detected effect with a lighter anymore.
My questions are: 1. what could be the reason that AS3935 changed its behaviors from detecting the “fake” lightning to outputing disturber constantly, and 2. What can we do to adjust the software to hopefully restoring the correct sensitivity? 3. Is there any other way to test it's working properly other than waiting for a storm?
The issue of "too many disturber detection" in lightning sensors, such as the AS3935 or similar models, is commonly associated with external interference that causes false lightning readings. This happens when nearby electronics, power lines, or other high-energy sources introduce noise or electromagnetic disturbances, which the sensor may mistake for actual lightning strikes. This is why you might see a "disturber" status instead of a normal "lightning detected" reading.
To mitigate this, you can adjust the sensor's sensitivity settings. For instance, switching between "indoor" or "outdoor" modes, or increasing the noise threshold can help filter out low-level disturbances. It's also helpful to ensure the sensor is placed far from potential sources of interference like large electrical systems or broadcasting equipment【67†source】【68†source】.
In some cases, resetting the sensor or its configuration can help resolve temporary interference, allowing the system to return to normal operation【69†source】. If the problem persists, you might need to further shield the sensor or experiment with different placements to avoid constant disturbances.
Waqas.Tech experienced the same problem, had to go take it down from the installation. We now moved the sensor outside the enclosure to see what is going to happen. There were no developments in the area, will monitor and revert back later
Pieter.Lombard The AS3935 is sensitive to electromagnetic noise, which nearby electronic devices, power lines, or other sources of interference can introduce.
lia.ifat Thanks for the replay!
So you think the behavior of the sensor is completely normal? Is there anyway I could simulate a lightning event according to your knowledge? I still am confused about why the sensor seemed to have changed its sensitivity when the codes were the same.
