Crashing every time it detects Mavic 3 Enterprise

[johnnokomis]

Testing with no drones in the air it's fine. As soon as the app detects my M3E the app crashes. Using LG V60.

Log-
session,timestamp (nanos),transportType,macAddress,msgVersion,rssi,payload,idType,uaType,uasId,idType,uaType,uasId,status,heightType,EWDirection,speedMult,direction,speedHori,speedVert,droneLat,droneLon,altitudePressure,altitudeGeodetic,height,horizontalAccuracy,verticalAccuracy,baroAccuracy,speedAccuracy,timestamp,timeAccuracy,distance,descriptionType,operationDescription,operatorLocationType,classificationType,operatorLatitude,operatorLongitude,areaCount,areaRadius,areaCeiling,areaFloor,category,classValue,operatorAltitudeGeo,systemTimestamp,operatorIdType,operatorId,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,
0,281646140031907,Beacon,60:60:1f:02:d4:f9,2,-65,F1 F2 19 03 02 12 31 35 38 31 46 35 46 48 42 32 32 39 46 30 30 32 30 32 44 52 00 00 00 12 22 63 15 00 7C BA 74 14 54 FC 70 CC 00 00 8F 0A 42 08 3A 02 8B 3D 0A 00 42 01 42 B7 74 14 F7 E0 70 CC 01 00 00 00 00 00 00 00 20 0A F7 C1 99 07 00 00 00 00 00 ,1,2,1581F5FHB229F00202DR,,,,2,0,1,0,99,21,0,343194236,-865010604,0,2703,2114,10,3,0,2,15755,10,66.72754,,,1,0,343193410,-865017609,1,0,0,0,0,0,2592,127517175,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
0,281649402536177,Beacon,60:60:1f:02:d4:f9,2,-67,00 F2 19 03 02 12 31 35 38 31 46 35 46 48 42 32 32 39 46 30 30 32 30 32 44 52 00 00 00 12 22 63 1F 00 AD BB 74 14 17 F3 70 CC 00 00 8F 0A 42 08 3A 02 AB 3D 0A 00 42 01 3D B7 74 14 A2 E0 70 CC 01 00 00 00 00 00 00 00 20 0A FA C1 99 07 00 00 00 00 00 ,1,2,1581F5FHB229F00202DR,,,,2,0,1,0,99,31,0,343194541,-865012969,0,2703,2114,10,3,0,2,15787,10,45.518757,,,1,0,343193405,-865017694,1,0,0,0,0,0,2592,127517178,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

[sxjack]

Does it work with the Dronetag scanner app?

[friissoren]

Hmm.... That is the csv log file, which only stores the data that the app receives. If it happens to crash before it gets to the part where it dumps the data to the csv file, it is hard to say anything specific.

I guess there is no way to get the actual application logs out for you. You would need to connect via USB and enable adb tracing.

I unfortunately don't have a Mavic 3 Enterprise drone to try with.

I looked in the Google Play Console, which gives some information about crashes that have been logged for the app, but I did not see any related to an LG V60 phone. I don't know how reliable that crash logging mechanism is or how often it gets updated.

Steve's question about trying the Dronetag app is a good one. Probably this is just a bug somewhere in the OpenDroneID app and you will be able to pick up the remote ID signals with the Dronetag app.

[sxjack]

That is the csv log file, which only stores the data that the app receives.

I've had a look at those messages, they seem fine, but, as you say, it's one of the messages after them that crashed it.

[sxjack]

Does it work with the Dronetag scanner app?

The link you want is this one https://play.google.com/store/apps/details?id=cz.dronetag.dronescanner .

[Tissy]

Why is authType | authDataPage | authLastPageIndex | authLength | authTimestamp | authData | repeated 16 times?

Is that what is being broadcast from the UAS or preconfigured in the app?

[friissoren]

Is that what is being broadcast from the UAS or preconfigured in the app?

That is just the header information that the app writes to the csv file. There can be up to 16 authentication messages (according to the standard) so there is room reserved for the worst case.

[johnnokomis]

I just tried it out again today and for a short period my M3E was picked up fine. When I say brief period it was a single time. At first opening of the app it said 0 drones. It took it a minute or 2 to ever see it. Once it did I closed the app and re opened it but the drone was never seen again. I was hovering just 50' away but no sign of it on the app.

I then opened the Dronetag app that was suggested previously. It never saw it even once. It leads me to wonder...
Is Android just not capable on a hardware level to be a RID reciever? Or is the FAA rules, guidelines and protocol just this garbage? They'll never enforce any of this RID nonsense. They don't have the manpower or the interest to do anything about it. The manufacturers are the ones responsible for implementing this useless RID. The pilots aren't required by law to do anything different. Crazy.

[johnnokomis]

Oh and the log output is basically just as useless (no offense). The successful attempt today looks identical to the app crashing one in the original post.

[lukasbrchl]

@johnnokomis Dronetag app currently doesn't support reading Wi-Fi Remote IDs from DJI drones. That's why we introduced Drone Scanner. In this video, you can also see a brief explanation why any Wi-Fi RID is poorly seen on Android devices https://www.youtube.com/watch?v=nzV1rJGTyMw

[johnnokomis]

@lukasbrchl Thank you for the video. Even with WiFi scan throttling turned off this is still an issue? Apps like Wigle WiFi scan at very fast rates on all channels. With the exception of Android 9's hard coded throttling. I also don't understand how Bluetooth is being used here since it has a range of about 30 feet in ideal conditions.

[lukasbrchl]

Yes, even with throttling off it is still trouble. The best we have seen is around 1 message per 6 seconds on Wi-Fi RIDs. However, just a limited set of smartphones can achieve that. I don't have many insights regarding the differences between Android versions.

The poor range you mention with Bluetooth is a myth. I understand it comes from using common Bluetooth peripherals, but please note Bluetooth RID is different. Check out this post, where data was received on 2.6km from a drone to a common smartphone at just 6 mW of power. https://www.linkedin.com/feed/update/urn:li:activity:6962664637557346305

[sxjack]

Is Android just not capable on a hardware level to be a RID receiver?

A laptop (or a counter-UAV system) will pick it up and a message every 10 seconds on a phone is fine for getting the serial number.

The pilots aren't required by law to do anything different.

As I understand the US regulations, they are from September unless they are flying in an exempt area.

[sxjack]

Check out this post, where data was received on 2.6km from a drone to a common smartphone at just 6 mW of power.

That is impressive. What antenna do you have on the transmitter?

[lukasbrchl]

We do use ceramic SMD antennas on all our products from multiple vendors

[johnnokomis]

Same drone, same phone, same problem. Instant crash.

session,timestamp (nanos),transportType,macAddress,msgVersion,rssi,payload,idType,uaType,uasId,idType,uaType,uasId,status,heightType,EWDirection,speedMult,direction,speedHori,speedVert,droneLat,droneLon,altitudePressure,altitudeGeodetic,height,horizontalAccuracy,verticalAccuracy,baroAccuracy,speedAccuracy,timestamp,timeAccuracy,distance,descriptionType,operationDescription,operatorLocationType,classificationType,operatorLatitude,operatorLongitude,areaCount,areaRadius,areaCeiling,areaFloor,category,classValue,operatorAltitudeGeo,systemTimestamp,operatorIdType,operatorId,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,authType,authDataPage,authLastPageIndex,authLength,authTimestamp,authData,
0,93968086029466,Beacon,60:60:1f:02:d4:f9,2,-82,C8 F2 19 03 02 12 31 35 38 31 46 35 46 48 42 32 32 39 46 30 30 32 30 32 44 52 00 00 00 12 22 00 04 00 91 2E 76 14 1D A4 70 CC 00 00 6C 0B FB 08 3A 02 CF 47 0A 00 42 01 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 3E 35 E6 08 00 00 00 00 00 ,1,2,1581F5FHB229F00202DR,,,,2,0,1,0,0,4,0,343289489,-865033187,0,2924,2299,10,3,0,2,18383,10,0.0,,,1,0,0,0,1,0,0,0,0,0,0,149304638,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,