Ina da buƙatar nuna dashboard tare da saka idanu akan fuska da yawa a ofis. Akwai tsofaffin tsoffin Rasberi Pi Model B + da hypervisor tare da kusan adadin albarkatu marasa iyaka.
A bayyane yake Rasberi Pi Model B+ ba shi da isasshen bazuwar don ci gaba da gudanar da burauzar yanar gizo da kuma samar da hotuna da yawa a ciki, saboda abin da ke faruwa cewa shafin yana da rauni kuma sau da yawa yana faɗuwa.
Akwai mafita mai sauƙi kuma mai daɗi, wacce nake so in raba tare da ku.
Kamar yadda ka sani, duk Raspberries suna da ingantaccen mai sarrafa bidiyo mai ƙarfi, wanda yake da kyau don ƙaddamar da bidiyo na hardware. Don haka ra'ayin ya zo don ƙaddamar da mai bincike tare da dashboard a wani wuri, da kuma canja wurin rafi da aka shirya tare da hoton da aka yi zuwa rasberi.
Bugu da ƙari, wannan ya kamata ya sami sauƙin gudanarwa, tun da yake a wannan yanayin za a yi duk wani tsari akan injin kama-da-wane ɗaya, wanda ya fi sauƙi don sabuntawa da madadin.
Da zaran an fada sai aka yi.
Bangaren uwar garken
Muna amfani da shirye . Ba buƙatar shigarwa ba, yana ƙunshe da duk abin da kuke buƙata don tura injin kama-da-wane da sauri, kuma yana taimakawa saita hanyar sadarwa kai tsaye, ƙara maɓallan ssh kuma da sauri sanya shi cikin aiki.
Muna tura sabon injin kama-da-wane kuma da farko mun sanya shi a kai , и :
apt-get update
apt-get install -y xserver-xorg nodm fluxbox
sed -i 's/^NODM_USER=.*/NODM_USER=ubuntu/' /etc/default/nodmZa mu kuma yi amfani da saitin don Xorg, da kyau mu Diego Ongaro, yana ƙara sabon ƙuduri kawai 1920 × 1080, tunda duk masu lura da mu za su yi amfani da shi:
cat > /etc/X11/xorg.conf <<EOT
Section "Device"
Identifier "device"
Driver "vesa"
EndSection
Section "Screen"
Identifier "screen"
Device "device"
Monitor "monitor"
DefaultDepth 16
SubSection "Display"
Modes "1920x1080" "1280x1024" "1024x768" "800x600"
EndSubSection
EndSection
Section "Monitor"
Identifier "monitor"
HorizSync 20.0 - 50.0
VertRefresh 40.0 - 80.0
Option "DPMS"
EndSection
Section "ServerLayout"
Identifier "layout"
Screen "screen"
EndSection
EOT
systemctl restart nodmYanzu za mu shigar da Firefox, za mu gudanar da shi azaman sabis na tsarin, don haka abu ɗaya za mu rubuta masa fayil ɗin raka'a:
apt-get install -y firefox xdotool
cat > /etc/systemd/system/firefox.service <<EOT
[Unit]
Description=Firefox
After=network.target
[Service]
Restart=always
User=ubuntu
Environment="DISPLAY=:0"
Environment="XAUTHORITY=/home/ubuntu/.Xauthority"
ExecStart=/usr/bin/firefox -url 'http://example.org/mydashboard'
ExecStartPost=/usr/bin/xdotool search --sync --onlyvisible --class "Firefox" windowactivate key F11
[Install]
WantedBy=graphical.target
EOT
systemctl enable firefox
systemctl start firefoxMuna buƙatar Xdotool don gudanar da Firefox nan da nan a cikin cikakken yanayin allo.
Amfani da siga -url za ka iya saka kowane shafi domin ya buɗe ta atomatik lokacin da mai binciken ya fara.
A wannan mataki, kiosk ɗinmu yana shirye, amma yanzu muna buƙatar fitar da hoton akan hanyar sadarwa zuwa wasu masu saka idanu da na'urori. Don yin wannan, za mu yi amfani da damar , tsarin da aka fi amfani dashi don yawo bidiyo daga mafi yawan kyamarar gidan yanar gizo.
Don wannan muna buƙatar abubuwa biyu: da module , don ɗaukar hotuna daga x's da , wanda zai rarraba shi ga abokan cinikinmu:
apt-get install -y make gcc ffmpeg
cd /tmp/
wget https://github.com/ccrisan/streameye/archive/master.tar.gz
tar xvf master.tar.gz
cd streameye-master/
make
make install
cat > /etc/systemd/system/streameye.service <<EOT
[Unit]
Description=streamEye
After=network.target
[Service]
Restart=always
User=ubuntu
Environment="DISPLAY=:0"
Environment="XAUTHORITY=/home/ubuntu/.Xauthority"
ExecStart=/bin/sh -c 'ffmpeg -f x11grab -s 1920x1080 -i :0 -r 1 -f mjpeg -q:v 5 - 2>/dev/null | streameye'
[Install]
WantedBy=graphical.target
EOT
systemctl enable streameye
systemctl start streameyeTunda hoton mu baya buƙatar sabuntawa da sauri, na ƙayyade ƙimar wartsakewa: firam 1 a sakan daya (parameter -r 1) da ingancin matsawa: 5 (parameter -q:v 5)
Yanzu bari muyi kokarin zuwa , a mayar da martani za ka ga kullum updated screenshot na tebur. Mai girma! - abin da ake bukata.
Bangaran abokin ciniki
Har yanzu yana da sauƙi a nan, kamar yadda na faɗa, za mu yi amfani da Rasberi Pi Model B +.
Da farko, bari mu shigar da shi , don wannan muna bi a kan gidan yanar gizon.
Hakanan za mu buƙaci ware ƙarin ƙwaƙwalwar ajiya don guntun bidiyon mu, don wannan za mu gyara a ciki /boot/config.txt
gpu_mem=128Bari mu kaddamar da sabon tsarin mu kuma kar a manta da fara maɓallin pacman, shigar :
pacman -Sy omxplayerAbin sha'awa, OMXPlayer na iya aiki ba tare da X ba, don haka duk abin da muke buƙata shine mu rubuta fayil ɗin raka'a don shi kuma mu gudu:
cat > /etc/systemd/system/omxplayer.service <<EOT
[Unit]
Description=OMXPlayer
Wants=network-online.target
After=network-online.target
[Service]
Type=simple
Restart=always
ExecStart=/usr/bin/omxplayer -r --live -b http://your-vm:8080/ --aspect-mode full
[Install]
WantedBy=multi-user.target
EOT
systemctl enable omxplayer
systemctl start omxplayerA matsayin siga -b http://your-vm:8080/ muna wucewa da url daga uwar garken mu.
Wannan ke nan, hoto daga uwar garken mu yakamata ya bayyana nan da nan akan allon da aka haɗa. A cikin kowane matsala, za a sake kunna rafi ta atomatik kuma abokan ciniki za su sake haɗawa da shi.
A matsayin kari, zaku iya shigar da hoton da aka samu azaman mai adana allo akan duk kwamfutoci a ofis. Don wannan za ku buƙaci и :
mode: one
selected: 0
programs:
"Monitoring Screen" mpv --really-quiet --no-audio --fs
--loop=inf --no-stop-screensaver
--wid=$XSCREENSAVER_WINDOW
http://your-vm:8080/ n
maze -root n
electricsheep --root 1 nYanzu abokan aikin ku za su yi farin ciki sosai 🙂
source: www.habr.com