View source for Orion T-7 AI Platform


==General Description==

ORION T-7 is a product developed by Peak Wireless Corporation. It is a compact edge computing platform powered by the NVIDIA® Jetson™ TX2 supercomputer-on-module, providing 256 CUDA® cores on the NVIDIA® Pascal™ architecture. It integrates most common components for edge computing applications including Cameras, SSD, SD card, LAN and WAN module. It is ideal for deployable computer vision and deep learning applications.

[[File:oriont7.png|750px|thumb|center|ORION T-7]]

For more information you can visit the [http://www.oriontech.com.tw/ official website] of the product.

==Features==
* NVIDIA® Jetson™ TX2 High Performance AI Computer
* x6 SerDes Camera Port
* Gigabit Ethernet, WiFi, Bluetooth
* Support M.2 2280 SSD
* Support M.2 3042 LTE Module
* Built-in GPS Engine, Support Dead Reckoning
* Built-in 3-Axis Accelerometer
* Built-in 3-Axis Gyroscope
* WiFi, CAN, USB 3.0, RS-232, DI, HDMI

==Applications==
* Telematics
* Transportation
* Manufacturing
* Health care
* Retail
* Law Enforcement
* Security & Surveillance

==Hardware Overview==

===ORION T-7 Board===
In the following picture you can see the main components of the ORION T-7 board:
[[File:hwoverview.png|750px|thumb|center|Hardware Overview]]

===Main Connector===
The main connector is composed by two pieces: 
* Red/Black 776273-1 piece (male connector): cable side. 
* Black 776266-1 piece (female connector): board side.
[[File:connector.png|400px|thumb|center|Connector Pieces]]

===Main Cable===

The main cable has the following components:
*1 x 776273-1 Male connector.
*1 x 2.1mm jack - Female DC power adapter. 
*1 x power switch.
*2 x RS232 DB9 9 Pin Female connector.

The DC power adapter must be connected to the board charger.

[[File:Cable2.jpg|450px|thumb|center|Main Cable]]

===Cameras Set===

The ORION T-7 has support for 6 cameras connected via High Speed Data (HSD) connectors.

[[File:camerasx6.jpg|450px|thumb|center|Cameras and Connectors]]

=Getting Started Guide=

==Physical Setup==

===Camera Connection===

* Connect the cameras to the ORION T-7 board as is shown in the following image:

[[File:cameraconn.jpg|450px|thumb|center|Camera Connection]]

===Power Connection===

* Connect the main cable to the board as follows:

[[File:powerconn.png|625px|thumb|center|Power Connection]]

* Connect the charger to the female DC power adapter of the main cable. Make sure the switch is turned off as is shown in the following picture:

[[File:powerconn0.jpg|400px|thumb|center|Charger Connection]]

After all the connections have been established, you can turn on the power switch.

==Testing the Cameras==

At this point you should be able to access the operating system of the board via ssh or by using a HDMI cable to a monitor, a mouse and a keyboard connected to the USB ports present in the ORION T-7. Once the session has been established, you can verify if all the 6 video devices were loaded properly. Open a terminal (Ctrl+Alt+T) and run:
<pre>
ls /dev/ | grep video
</pre>

Then, test the cameras by selecting one of the following options:

===1 Channel===
 
Select one of the six camera-IDs and run the pipeline:
<pre>
gst-launch-1.0 v4l2src device=/dev/[videoID] ! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' ! xvimagesink sync=false
</pre>

Replacing the '''[videoID]''' by the video device you chose. You can find this pipeline in a script named '''v.sh''' at the 'home' directory of the board system. Here is an example of 1-channel capture.

[[File:1cam.png|700px|thumb|center|1-Sensor Capture: 1280x720 @ 30fps]]

===4 Channel===
 
Run the following pipeline in order to capture from four cameras simultaneously:
<pre>
gst-launch-1.0 -ev videomixer name=mix \
sink_0::xpos=0 \
sink_1::xpos=1280 \
sink_2::ypos=720 \
sink_3::xpos=1280 \
sink_3::ypos=720 \
! xvimagesink sync=false \
 v4l2src device=/dev/video0 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_0 \
 v4l2src device=/dev/video1 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_1 \
 v4l2src device=/dev/video2 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_2 \
 v4l2src device=/dev/video3 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_3
</pre>

You can find this pipeline in a script named '''4cams.sh''' at the 'home' directory of the board system. Here is an example of 4-channel capture:
[[File:4cam.png|700px|thumb|center|4-Sensor Capture: 1280x720 @ 30fps]]

===6 Channel===
 
Run the following pipeline in order to capture from the six cameras simultaneously:
<pre>
gst-launch-1.0 -ev videomixer name=mix \
sink_0::xpos=0 \
sink_1::xpos=1280 \
sink_2::ypos=720 \
sink_3::xpos=1280 \
sink_3::ypos=720 \
sink_4::xpos=0 \
sink_4::ypos=1440 \
sink_5::xpos=1280 \
sink_5::ypos=1440 \
! xvimagesink sync=false \
 v4l2src device=/dev/video0 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_0 \
 v4l2src device=/dev/video1 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_1 \
 v4l2src device=/dev/video2 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_2 \
 v4l2src device=/dev/video3 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_3 \
 v4l2src device=/dev/video4 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_4 \
 v4l2src device=/dev/video5 \
! 'video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1' \
! mix.sink_5
</pre>

You can find this pipeline in a script named '''6cams.sh''' at the 'home' directory of the board system. Here is an example of 6-channel capture:

[[File:6cam.png|700px|thumb|center|6-Sensor Capture: 1280x720 @ 30fps]]

=Switching Demo=

==Description==
This demo is about a switch that display a number of cameras given by the user on simultaneous streaming mode.

==Requirements==
This demo uses the following RidgeRun's products:
* [https://developer.ridgerun.com/wiki/index.php?title=GStreamer_Daemon GStreamer Daemon].
* [http://developer.ridgerun.com/wiki/index.php?title=GstInterpipe GstInterpipes].
* [https://developer.ridgerun.com/wiki/index.php?title=GstShark GstShark].

==Usage==
* Run the script called [https://developer.ridgerun.com/wiki/index.php?title=Gstd_interpipes_Demo '''gstd_interpipe.sh'''] present at the 'home' directory of the board system.
* The number of cameras to display can be given by pressing a key from 1 to 6.
* Hit the '''Esc''' key to finish the program execution.
<br>

=Performance Stats=
==Framerate and CPU Usage==

For these performance tests the results were obtained by using GstShark.
The CPU usage indicates the usage mean of the 4 cores used on the platform to run the pipelines when capturing from 1 to 6 cameras. 
The video output was sent to the following three sinks, where you can see a pipeline example used to get the stats for one camera in each case:
*''fakesink'': The video is not displayed. 
<pre>
GST_DEBUG=*TRACER*:9 GST_TRACERS="cpuusage;framerate" gst-launch-1.0 v4l2src device=/dev/video0 \
! "video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1" ! fakesink
</pre>
*''videosink'': The video is displayed.
<pre> 
GST_DEBUG=*TRACER*:9 GST_TRACERS="cpuusage;framerate" gst-launch-1.0 v4l2src device=/dev/video0 \
! "video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1" ! xvimagesink
</pre>
*''filesink'': The video is written on a '''.mkv''' file.
<pre> 
GST_DEBUG=*TRACER*:9 GST_TRACERS="cpuusage;framerate" gst-launch-1.0 v4l2src device=/dev/video0 ! "video/x-raw,format=(string)UYVY,width=(int)1280,height=(int)720,framerate=(fraction)30/1" ! nvvidconv ! omxh265enc ! matroskamux ! filesink location=test_cam0.mkv
</pre>

You can find the test results in the following table:

{| class="wikitable" style="margin-right: auto; margin-left: auto; border: none;"
|-
! colspan="1" style="background: black; color: white;" | !! colspan="2" style="background: black; color: white;" | Fakesink (No Display) !! colspan="2" style="background: black; color: white;" | Videosink (Display) !! colspan="2" style="background: black; color: white;" | Filesink (Video File)
|-
! style="background: black; color: white;" | Number of Cameras !! style="background: black; color: white;" | Framerate (fps) !! style="background: black; color: white;" | CPU Usage (%) !! style="background: black; color: white;" | Framerate (fps) !! style="background: black; color: white;" | CPU Usage (%) !! style="background: black; color: white;" | Framerate (fps) !! style="background: black; color: white;" | CPU Usage (%)
|-
! scope="row" | 1
| style="text-align: center" | 30 || style="text-align: center" | 5.5 || style="text-align: center" | 30 || style="text-align: center" | 23.5 || style="text-align: center" | 30 || style="text-align: center" | 13.5
|-
! scope="row" | 2
| style="text-align: center" | 30 || style="text-align: center" | 20 || style="text-align: center" | 30 || style="text-align: center" | 13.5 || style="text-align: center" | 30 || style="text-align: center" | 20.5 
|-
! scope="row" | 3
| style="text-align: center" | 30 || style="text-align: center" | 20 || style="text-align: center" | 30 || style="text-align: center" | 18 || style="text-align: center" | 30 || style="text-align: center" | 25 
|-
! scope="row" | 4
| style="text-align: center" | 30 || style="text-align: center" | 21.5 || style="text-align: center" | 30 || style="text-align: center" | 18.5 || style="text-align: center" | 30 || style="text-align: center" | 22.5 
|-
! scope="row" | 5
| style="text-align: center" | 30 || style="text-align: center" | 22 || style="text-align: center" | 30 || style="text-align: center" | 14 || style="text-align: center" | 30 || style="text-align: center" | 23.5 
|-
! scope="row" | 6
| style="text-align: center" | 30 || style="text-align: center" | 22 || style="text-align: center" | 30 || style="text-align: center" | 14 || style="text-align: center" | 30 || style="text-align: center" | 27.5 
|}

==Glass to Glass Video Latency==

The glass to glass test let us identify the latency the capture is having. As you can see in the photo, in this case was possible to identify a latency of '''142 ms'''. 

[[File:Glass2glass.jpg|600px|center|GStreamer_Daemon]] 

This time can be considered as acceptable, depending on the application where these sensors are being used.

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[[Category:Orion T-7]][[Category:GStreamer]]