Cov txheej txheem:
- Kauj Ruam 1: 3D Luam QHOV TSEEB
- Kauj Ruam 2: POWER SYSTEMS ntawm Satellite
- Kauj Ruam 3: Teeb Raspberry Pi Zero (Chav Ua Haujlwm)
- Kauj Ruam 4: Txuas lub Raspberry Pi
- Kauj Ruam 5: Cov Qauv Xov Tooj Cua
- Kauj Ruam 6: Kav hlau txais xov
- Kauj Ruam 7: Tau txais thiab txiav txim siab cov ntaub ntawv (Tshaj los ntawm Satellite)
Video: Teem-Npaj SSTV CubeSat: 7 Kauj Ruam (nrog Duab)
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25
Satellites yog cov cuab yeej tsim los ntawm tib neeg uas sau cov ntaub ntawv thiab cov ntaub ntawv los ntawm qhov chaw. Tib neeg tau pioneered thev naus laus zis chaw ntau xyoo thiab chaw thev naus laus zis tau nkag mus tau yooj yim dua li yav tas los.
Yav dhau los Satellites siv los nyuaj heev thiab kim tab sis Tam sim no qhov chaw thev naus laus zis tuaj yeem nkag tau yooj yim dua thiab pheej yig dua li ib txwm muaj.
Niaj hnub no peb tuaj yeem tsim lub hnub qub tau yooj yim siv cov khoom lag luam tawm sab nrauv xws li Arduino cov laug cam txhim kho lossis siv Raspberry pi.
Hauv Cov Lus Qhia no peb yuav kawm tsim lub satellite uas tuaj yeem tshaj tawm cov duab nyob.
Rau lub hnub qub no peb yuav siv daim ntawv foos hu ua CubeSat. CubeSat (U-class spacecraft) yog ib hom satellite me me rau kev tshawb fawb qhov chaw uas yog ua los ntawm ntau ntau ntawm 10 cm × 10 cm × 10 cm cubic units (source-wikipedia)
Kuv thov txim rau 3D ua piv txwv tsis yog duab tiag vim kuv tsis muaj peev xwm nrhiav tau ib feem los ua kom tiav lub hnub qub thaum Covid-19 Pandemic
ZOO SIAB
-Cov satellite yuav siv SSTV (Slow Scan TV) thev naus laus zis los xa nws Cov Duab rau hauv ntiaj teb tom qab ntawd nws yuav raug khaws los ntawm lub chaw nres tsheb hauv av (uas yuav nruab nrog Software Defined Radio uas yuav siv los ntes cov ntaub ntawv xa los ntawm lub hnub qub.) --- [Xav paub ntau ntxiv ntawm
Kauj Ruam 1: 3D Luam QHOV TSEEB
Cov Qauv ntawm Satellite yuav suav nrog cov khoom siv hluav taws xob thiab tiv thaiv nws zoo. Cov Qauv tau tsim hauv Autodesk Fusion 360* thiab tuaj yeem luam tawm 3D
Nco tseg- Cov khoom siv rau 3D luam ntawv yuav tsum tawv thiab ruaj khov. Qhov kub hauv qhov chaw hloov pauv loj heev [los ntawm kwv yees li 121 C txog -157 C] uas yuav ua rau muaj kev nyuaj siab heev ntawm cov qauv. Nws raug nquahu kom siv cov khoom muaj zog xws li PETG lossis ABS.
Nws peb pom zoo kom siv Infill teeb tsa ntawm 70-80%
Kauj Ruam 2: POWER SYSTEMS ntawm Satellite
Kev Tswj Fais Fab
- Lub hnub qub yuav ua haujlwm ntawm 3x18650 Li-ion roj teeb uas yuav raug them siv lub zog hnub ci raws li kev saib xyuas ntawm lub rooj tswj hwm kom tsis txhob ua kom lub roj teeb puas los ntawm kev them ntau dua.
- Tom qab ntawd, cov roj teeb yuav ua lub zog rau ntawm lub computer (ntawm no, raspberry pi xoom) los ntawm DC-DC 5V USB hloov pauv.
Kauj Ruam 3: Teeb Raspberry Pi Zero (Chav Ua Haujlwm)
Kauj Ruam 1: Ua ntej peb yuav tsum nruab Raspbian OS nrog cov duab ib puag ncig
Kauj Ruam 2: Tom qab ntawd ua kom lub koob yees duab cuam tshuam (thiab tseem txuas Raspberry lub koob yees duab module), I2C thiab Serial los ntawm kev nkag mus rau raspi-teeb tsa
Kauj Ruam 3: Tom qab ntawd peb yuav tsum rub tawm SSTV -Servet Repository los ntawm GitHub los ntawm Innovart Team (leej twg kuj tsim SSTV tshuaj ntsiav qhia tau>> https://www.instructables.com/id/SSTV-CAPSULE-FOR-…) thiab khaws nws rau "/home/pi"
Kauj Ruam 4: Tom qab ntawd ua raws tsab ntawv sstv.sh kom pib ntes cov duab thiab tom qab ntawd sib tham nrog lub xov tooj cua module kom xa daim duab (Ua Qhov No Tom Qab Ua tiav KAUJ RUAM -6)
Kauj Ruam 4: Txuas lub Raspberry Pi
Txuas cov khoom siv raws li daim duab qhia chaw
Kauj Ruam 5: Cov Qauv Xov Tooj Cua
Rau qhov haujlwm no DRA818V module tau siv. RaspberryPi sib txuas lus nrog xov tooj cua module ntawm chaw nres nkoj txuas, yog li peb yuav tsum pab kom GPIO tus pin
Txhawm rau pab kom UART (GPIO) tus pin peb yuav tsum nkag mus rau cov cai hauv qab no-
$ sudo -s $ echo "enable_uart = 1" >> /boot/config.txt
$ systemctl nres [email protected]
$ systemctl lov tes taw [email protected]
$ nano /boot/cmdline.txt #Tshem tawm console = serial0, 115200
Tom qab ntawd peb yuav tsum rov pib dua raspberry pi thiab GPIO pins tau qhib
Tam sim no nrog kev pab los ntawm kev teeb tsa GPIO txuas txuas peb tuaj yeem tswj hwm lub xov tooj cua module thiab muab cov zaus xa mus.
Tam sim no peb yuav tsum teeb tsa Kev Tshaj Tawm SSTV zaus
Nco tseg- Qhov zaus yuav tsum sib phim nrog SSTV zaus faib los ntawm koj lub tebchaws
Kauj Ruam 6: Kav hlau txais xov
Vim qhov kev cog lus me me ntawm peb tes num peb yuav siv PCB Dipole kav hlau txais xov. Qhov no tej zaum tsis yog txoj hauv kev muaj txiaj ntsig tshaj plaws rau xa tab sis vim yog qhov xwm txheej zoo ntawm peb tes num peb tsis muaj lwm txoj kev xaiv. kuj Patch antennas kuj tuaj yeem siv tau tab sis kuv tsis tau pom ib qho lag luam ib qho yooj yim muaj.
Kauj Ruam 7: Tau txais thiab txiav txim siab cov ntaub ntawv (Tshaj los ntawm Satellite)
Nws raug pom zoo kom Kawm Me ntsis Txog Software Defined Radios (SDR) rau Cov Kauj Ruam no
Txhawm rau kom tau txais cov ntaub ntawv los ntawm lub hnub qub peb yuav xav tau SDR (kuv siv RTL-SDR), SDR Software (Kuv siv SDR#) thiab SSTV txiav txim siab software (Kuv siv wxtoimgrestored software)
YUAV TSUM & DECODING DATA
Kauj Ruam 1-Tune rau qhov kis tau tus mob ntawm Satellite ces kaw cov suab uas tau txais.
Kauj Ruam 2-Tom qab kaw cov ntaub ntawv tau txais ntshuam nws mus rau cov software txiav txim siab thiab software yuav txiav txim siab cov ntaub ntawv thiab cov duab yuav raug tsim
Pab Txuas-https://www.rtl-sdr.com/receiving-sstv-with-rtl-sd…
Thiab qhov no yog yuav tsim SSTV Satellite li cas
Pab tau Links-
- https://wxtoimgrestored.xyz/
- https://www.element14.com/community/community/rasp…
- https://www.instructables.com/id/SSTV-CAPSULE-FOR-…
- https://www.instructables.com/id/Receiving-Images-…
- https://hsbp.org/rpi-sstv
- https://hackaday.com/2013/10/10/06/sstv-beacon-based-…
- https://ws4e.blogspot.com/2013/06/
Pom zoo:
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