ToF sensor

hitendra

That error happens when we dont set up TOF_CAM_ID environment variable or it is setup incorrectly. The environment variable is set by running the voxl-configure-cameras script. If you havent run the script, could you please try running it. To verify it quickly you can try to directly modify the TOF_CAM_ID environment variable.

On the voxl run:

export TOF_CAM_ID=0

and try running the app again.

gauravshukla914

@hitendra Hi. Thanks for your reply.
We did select the option 5 and we did an echo $TOF_CAM_ID, and we got result as 0.
We also tried option 6 and we got the result as 1. SO it confirms that the variable TOF_CAM_ID was setting properly to 0 and 1 wrt to the configuration parametrs 5 and 6.
We are still facing the same issue.

gauravshukla914

Hello. A quick update. We resolved that issue by change the image width and height to 640 and 480 respectively in the hello_hal3_camera_main.cpp file on line 68 and line 69. We are now able to see the list of the topics, but these topics are not publishing anything. Assuming, it could be an error of a missing file mentioned below.

/data/misc/camera/irs10x0c_lens.cal

We looked into this directory but could not find this file. I'm attaching a screenshot of the same. Screenshot from 2021-01-11 16-57-42.png

gauravshukla914

how can I get this file? irs10x0c_lens.cal
I purchased this tof addon :
https://www.modalai.com/pages/tof-add-on

Do I have to calibrate it?
None of the topics are publishing anying.
There is no image data.

modaltb

@gauravshukla914 ,

I'm not aware of any calibration required for ToF.... This procedure should work out the box so I'm confused: https://gitlab.com/voxl-public/ros/voxl-hal3-tof-cam-ros#visualization

I'm sure you have this correct, but where have you attached the camera? It should be connected to J3 here: https://docs.modalai.com/camera-connections/#camera-ports

gauravshukla914

@modaltb Yes I have attached it properly to J3 and we followed the same process but when I launch the file it says the file /data/misc/camera/irs10x0c_lens.cal is missing. I looked into the directory as well there is not such file exist.
I tried this and I do get frames out of it. So that means it is attached properly
https://gitlab.com/voxl-public/other/apps-proc-examples/-/tree/dev/hellotof

hitendra

Hi:

Could you please list the content of your /data/misc/camera directory? I am wondering if the process of generating that file was interrupted and now it doesn't attempt to generate it anymore.

If there is anything in the /data/misc/camera directory I would move it to another temp directory - say /data/misc/camera/temp and try running the app again.

Also as a quick experiment, I would put in just the TOF camera, remove other cameras and run the app again to see if it helps.

gauravshukla914

@hitendra Thanks for the suggestions.
Here is the list of file present in data/misc/camera directory
camera'.png
each of these files are just have these of 0 bytes each

default installed voxl_hal3_tof package gives error as resolution not supported. And changing the resolution from the source as we did mentioned earlier does run the package but than stops at irs10x0c_lens.cal file being missing

after changing the resolution and compiling again

and hence topics are created but they don't publish any data

Chad Sweet

That lens cal file is created the first time the driver is launched, it does take about 20 seconds to generate. Changing the resolution in the code probably is just covering up the fact the TOF camera isn't launching.

The CAM_ID changes based on which sensors are plugged in due to a quirk in the Qualcomm camera subsystem. It's most likely the wrong CAM_ID is being assigned to TOF in the config. Maybe a camera is/was unplugged?

gauravshukla914

this is my setup

yocto:/# voxl-configure-cameras 

Which camera configuration are you using?
1 Tracking + Stereo (default)
2 Tracking Only
3 Hires + Stereo + Tracking
4 Hires + Tracking
5 TOF + Tracking
6 Hires + TOF + Tracking
7 TOF + Stereo + Tracking (not currently supported)
8 None

5
attempting to use camera configuration 5
adding override_cam_id value=1 to /etc/snav/camera.downward.xml
adding override_cam_id value=-1 to /etc/snav/camera.stereo.xml
yocto:/# echo $TOF_CAM_ID
yocto:/# roslaunch /opt/ros/indigo/share/voxl_hal3_tof_cam_ros/launch/tof.launch
... logging to /home/root/.ros/log/34d08072-55bb-11eb-aee3-ec5c68cd1745/roslaunch-apq8096-3324.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.100.96:36814/

SUMMARY
========

PARAMETERS
 * /rosdistro: indigo
 * /rosversion: 1.11.21
 * /tof/voxl_hal3_tof_cam_ros_node/auto_exposure: 0
 * /tof/voxl_hal3_tof_cam_ros_node/camera_id: 0
 * /tof/voxl_hal3_tof_cam_ros_node/exposure_time: 800
 * /tof/voxl_hal3_tof_cam_ros_node/flip_image: True
 * /tof/voxl_hal3_tof_cam_ros_node/frame_rate: 30
 * /tof/voxl_hal3_tof_cam_ros_node/ir_image_mode: False
 * /tof/voxl_hal3_tof_cam_ros_node/laser_scan_line: 86
 * /tof/voxl_hal3_tof_cam_ros_node/publish_depth_image: True
 * /tof/voxl_hal3_tof_cam_ros_node/publish_ir_image: True
 * /tof/voxl_hal3_tof_cam_ros_node/publish_laser_scan: True
 * /tof/voxl_hal3_tof_cam_ros_node/publish_point_cloud: True
 * /tof/voxl_hal3_tof_cam_ros_node/scan_width_degrees: 96

NODES
  /tof/
    voxl_hal3_tof_cam_ros_node (voxl_hal3_tof_cam_ros/voxl_hal3_tof_cam_ros_node)
  /
    base_link_laser_scan (tf2_ros/static_transform_publisher)
    base_link_tof_cam (tf2_ros/static_transform_publisher)

auto-starting new master
process[master]: started with pid [3343]
ROS_MASTER_URI=http://localhost:11311/

setting /run_id to 34d08072-55bb-11eb-aee3-ec5c68cd1745
process[rosout-1]: started with pid [3356]
started core service [/rosout]
process[base_link_tof_cam-2]: started with pid [3371]
process[base_link_laser_scan-3]: started with pid [3378]
process[tof/voxl_hal3_tof_cam_ros_node-4]: started with pid [3386]

	DEPTH_IMAGE
	IR: 1 ..... Cloud: 1 ..... Laser: 1
Camera id: 0
Image width: 224
Image height: 1557
Number of frames to dump: 0
Camera mode: preview
SUCCESS: Camera module opened
Camera Id: 0 Facing: 1
ERROR: Libcamera sending post-processed TOF data. App does NOT get RAW16 TOF camera data


[tof/voxl_hal3_tof_cam_ros_node-4] process has finished cleanly
log file: /home/root/.ros/log/34d08072-55bb-11eb-aee3-ec5c68cd1745/tof-voxl_hal3_tof_cam_ros_node-4*.log
^C[base_link_laser_scan-3] killing on exit
[base_link_tof_cam-2] killing on exit
[rosout-1] killing on exit
[master] killing on exit
shutting down processing monitor...
yocto:/# echo $TOF_CAM_ID
0
yocto:/# ls /data/misc/camera/
cam_socket2  cam_socket3  cam_socket4  temp
yocto:/#

I don't know what else I am missing

Chad Sweet

You're selecting TOF+Tracking, but there is no tracking sensor installed. So the TOF_CAM_ID is probably coming out incorrect.

Do you have a tracking camera? If so, please power off and install
If not, can you please try export TOF_CAM_ID=1 ?

thanks!

gauravshukla914

@Chad-Sweet
we installed tracking camera and reconfigured voxl using voxl-configure-camera

and tracking camera is working
Screenshot from 2021-01-13 11-23-59.png

than we tried to run tof package again but still the problem persist. we even tried to change the TOF_CAM_ID but still no change.

yocto:/# roslaunch voxl_hal3_tof_cam_ros tof.launch 
... logging to /home/root/.ros/log/3f833ac4-55c4-11eb-a699-ec5c68cd1745/roslaunch-apq8096-4079.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.100.96:55989/

SUMMARY
========

PARAMETERS
 * /rosdistro: indigo
 * /rosversion: 1.11.21
 * /tof/voxl_hal3_tof_cam_ros_node/auto_exposure: 0
 * /tof/voxl_hal3_tof_cam_ros_node/camera_id: 0
 * /tof/voxl_hal3_tof_cam_ros_node/exposure_time: 800
 * /tof/voxl_hal3_tof_cam_ros_node/flip_image: True
 * /tof/voxl_hal3_tof_cam_ros_node/frame_rate: 30
 * /tof/voxl_hal3_tof_cam_ros_node/ir_image_mode: False
 * /tof/voxl_hal3_tof_cam_ros_node/laser_scan_line: 86
 * /tof/voxl_hal3_tof_cam_ros_node/publish_depth_image: True
 * /tof/voxl_hal3_tof_cam_ros_node/publish_ir_image: True
 * /tof/voxl_hal3_tof_cam_ros_node/publish_laser_scan: True
 * /tof/voxl_hal3_tof_cam_ros_node/publish_point_cloud: True
 * /tof/voxl_hal3_tof_cam_ros_node/scan_width_degrees: 96

NODES
  /tof/
    voxl_hal3_tof_cam_ros_node (voxl_hal3_tof_cam_ros/voxl_hal3_tof_cam_ros_node)
  /
    base_link_laser_scan (tf2_ros/static_transform_publisher)
    base_link_tof_cam (tf2_ros/static_transform_publisher)

auto-starting new master
process[master]: started with pid [4098]
ROS_MASTER_URI=http://localhost:11311/

setting /run_id to 3f833ac4-55c4-11eb-a699-ec5c68cd1745
process[rosout-1]: started with pid [4111]
started core service [/rosout]
process[base_link_tof_cam-2]: started with pid [4124]
process[base_link_laser_scan-3]: started with pid [4129]
process[tof/voxl_hal3_tof_cam_ros_node-4]: started with pid [4141]

	DEPTH_IMAGE
	IR: 1 ..... Cloud: 1 ..... Laser: 1
Camera id: 0
Image width: 224
Image height: 1557
Number of frames to dump: 0
Camera mode: preview
SUCCESS: Camera module opened
Camera Id: 0 Facing: 1
Camera Id: 1 Facing: 1
ERROR: Libcamera sending post-processed TOF data. App does NOT get RAW16 TOF camera data


[tof/voxl_hal3_tof_cam_ros_node-4] process has finished cleanly
log file: /home/root/.ros/log/3f833ac4-55c4-11eb-a699-ec5c68cd1745/tof-voxl_hal3_tof_cam_ros_node-4*.log
^C[base_link_laser_scan-3] killing on exit
[base_link_tof_cam-2] killing on exit
[rosout-1] killing on exit
[master] killing on exit
shutting down processing monitor...
... shutting down processing monitor complete
done
yocto:/#

Chad Sweet

OK, good the tracking sensor is working. Sorry about this, the tof setup is still in beta. We clearly need to document the setup way better.

Can you please print which version of system image you are using (voxl-version)? The error implies an older system image which does not support that hal3_tof_cam_ros.

ERROR: Libcamera sending post-processed TOF data. App does NOT get RAW16 TOF camera data

The error above implies an older version of libcamera which would use tof_cam_ros instead

Just FYI, the TOF_CAM_ID needs to match what is in the launch file. This message shows what is in the launch file:
/tof/voxl_hal3_tof_cam_ros_node/camera_id: 0

gauravshukla914

@Chad-Sweet

--------------------------------------------------------------------------------
system-image:    ModalAI 3.1.0 BUILDER: ekatzfey BUILD_TIME: 2020-12-23_19:41
kernel:          #1 SMP PREEMPT Wed Dec 23 19:50:23 UTC 2020 3.18.71-perf
factory-bundle:  1.0.1 (Yocto installation)
--------------------------------------------------------------------------------
architecture:    aarch64
processor:       apq8096
os:              GNU/Linux
--------------------------------------------------------------------------------
voxl-suite:
Package: voxl-suite
Version: 0.2.0
Depends: docker, imu_app (= 0.0.6), libvoxl_io (= 0.5.2), voxl-cam-manager (= 0.2.2), voxl-docker-support (= 1.1.1), voxl-hal3-tof-cam-ros (= 0.0.2), voxl-modem (= 0.10.0), voxl-nodes (= 0.0.8), voxl-rtsp (= 1.0.2), voxl-utils (= 0.5.2), voxl-vision-px4 (= 0.6.8), voxl_imu (= 0.0.4), voxl-time-sync (= 0.0.1), voxl-vpn (= 0.0.2), librc_math (= 1.1.2), libmodal_pipe (= 1.2.2), modalai-vl (= 0.1.3)
Status: install user installed
Section: base
Architecture: armv7a
Maintainer: james@modalai.com
MD5Sum: af706cd3c1ea59f274f2ed9b93141f1d
Size: 870
Filename: voxl-suite_0.2.0.ipk
Description: meta-package to install all of the voxl-suite
Installed-Time: 3126

--------------------------------------------------------------------------------

according to git repository launch file is taking tof cam id from environment variable and we select option 5 from voxl-configure-camera which sets accordingly

Chad Sweet

that all looks good. Will investigate further

gauravshukla914

Okay. Looking forward to your solution asap!

Chad Sweet

Can you please type and report the output?
opkg list-installed | grep royal

Chad Sweet

Assuming the ipk is installed, can you please then run this command and then try the ROS node again?

setprop persist.camera.modalai.tof 1

gauravshukla914

@Chad-Sweet
this is the version of royal sdk installed
royale-331-spectre-4-7 - 0.0.1

gauravshukla914

@Chad-Sweet
Thanks for the solution it worked!
but after a minute or so it started throwing error

DEPTH_IMAGE
	IR: 1 ..... Cloud: 1 ..... Laser: 1
Camera id: 0
Image width: 224
Image height: 1557
Number of frames to dump: 0
Camera mode: preview
SUCCESS: Camera module opened
Camera Id: 0 Facing: 1
Camera Id: 1 Facing: 1
SUCCESS: TOF interface created!
=========== modalai  Royale3.31, Spectre4.7 CameraDevice::activateUseCase() : return SUCCESS!!
=========== modalai  Royale3.31, Spectre4.7 CameraDevice::activateUseCase() : return SUCCESS!!
Libcamera sending RAW16 TOF data. App calling the PMD libs to postprocess the RAW16 data
[ INFO] [1610561725.908936828]: Loading lens parameters from /data/misc/camera/irs10x0c_lens.cal.
[ INFO] [1610561725.913180926]: 
cx/cy     114.822 89.022
fx/fy     111.394 111.394
tan coeff -0.00222965 -0.00368372
rad coeff -0.261745 0.098178 -0.0166875





Camera HAL3 ToF camera test is now running
Frame: 0 SensorTimestamp = 	 213139865341
Frame: 30 SensorTimestamp = 	 214139747341
Frame: 60 SensorTimestamp = 	 215139847341
Frame: 90 SensorTimestamp = 	 216139794341
Frame: 120 SensorTimestamp = 	 217139814341
Frame: 150 SensorTimestamp = 	 218139859341
Frame: 180 SensorTimestamp = 	 219139889341
Frame: 210 SensorTimestamp = 	 220139917341
Frame: 240 SensorTimestamp = 	 221139905341
Frame: 270 SensorTimestamp = 	 222139941341
Frame: 300 SensorTimestamp = 	 223139931341
Frame: 330 SensorTimestamp = 	 224139999341
.
.
.
.
.
Frame: 2430 SensorTimestamp = 	 294139985341
HELLOCAMERA-ERROR: Error sending request 2449
HELLOCAMERA-ERROR: Framenumber: 2446 ErrorCode: 4
HELLOCAMERA-ERROR: Framenumber: 2447 ErrorCode: 2
HELLOCAMERA-ERROR: Framenumber: 2448 ErrorCode: 2
HELLOCAMERA-ERROR: Framenumber: 2449 ErrorCode: 2
HELLOCAMERA-ERROR: Framenumber: 0 ErrorCode: 1
HELLOCAMERA-ERROR: Error sending request 2450
HELLOCAMERA-ERROR: Error sending request 2451
HELLOCAMERA-ERROR: Error sending request 2452
HELLOCAMERA-ERROR: Error sending request 2453
HELLOCAMERA-ERROR: Error sending request 2454
^C[tof/voxl_hal3_tof_cam_ros_node-4] killing on exit
[base_link_laser_scan-3] killing on exit
[base_link_tof_cam-2] killing on exit
HELLOCAMERA-ERROR: Error sending request 2455
[tof/voxl_hal3_tof_cam_ros_node-4] escalating to SIGTERM
[rosout-1] killing on exit
[master] killing on exit
shutting down processing monitor...
... shutting down processing monitor complete
done