Android ThingsでIoT/AIなデバイス開発しよう

Transcript

1. Android ThingsͰIoT/AIͳ
   σόΠε։ൃ͠·͠ΐ͏ɻ
   2018/08/20
   @masato_ka(·͞ͱ͔)
   

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2. ࠓ೔ͷLTͷ಺༰͸ Android ThingsΛ࢖͏ͱخ͜͠
   ͱͰ͢ɻ
   

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3. Android Thingsͬͯͳʹʁ
   • Android(Android O)ϕʔεʹIoTσόΠε޲͚ʹΧελϚ
   Πζͨ͠OS
   • ̎̌̍̔೥ 5݄ʹVer 1.0.0ʢ8݄Ͱ Ver1.0.3ʣ
   • Things Support LibraryͰσόΠεͷपล I/OʹΞΫηεͰ͖Δɻ
   • ΠϯετʔϧͰ͖ΔΞϓϦ͸1ͭͰΞϓϦέʔγϣϯ͕ࣗಈىಈ͢Δɻ
   • Raspberry Pi 3BͳͲෳ਺ͷϘʔυʹରԠ͍ͯ͠Δɻ
   • LenovoͷSmart Display͕Android Things 1.0.0ൃͷϓϩμΫτ
   ༻్: Raspberry PiͰ࡞ΕΔσόΠε͸େମ࡞ΕΔɻ
   

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4. AndroidThings࢖ͬͯΔਓ͋Μ·Γฉ͔ͳ͍ɻ
   ●Android Thingsɻɻɻ
   ※Arduino͸ѹ౗త͗͢ΔͨΊআ֎
   

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5. ʲࠓ೔ͷϞνϕʔγϣϯʳ
   ̍ɽAndroid Thingsͷ͍͍ͱ͜Λ΋ͬͱ஌ͬͯʂ
   ̎ɽAndroid ThingsΛ࢖͏ਓΛ૿΍͍ͨ͠
   

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6. ͰɺAndroid ThingsΛ࢖͏ͱԿ͕خ͍͠ͷʁ
   

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7. Android Things ͷ࠷ߴͳ3ͭͷϙΠϯτ
   1. User-space driver
   •ಠࣗͷσόΠεΛAndroidͷAPIʹ౷߹
   2. σόΠε΁ͷAIͷ૊ΈࠐΈ
   •ΠϯελϯτʹAIػೳΛσόΠεʹ෇Ճ
   3. Ϋϥ΢υͱͷ࿈ܞ
   •σόΠεϚωδϝϯτؚΊͨΫϥ΢υ࿈ܞ
   

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8. पลI/OΛAndroidͷAPIͰѻ͑ΔΑ͏ʹ͢Δɻ
   Android Things OS
   UART I2C/SPI PWM I/O
   1.User-space driver
   GPSϞδϡʔϧ ηϯα/LED/OLED ϥδίϯαʔϘ SW/LED
   ※I2S͸Audio APIͰΞΫηε͢Δɻ
   Things Support Library
   Location HID Sensor LoWPAN
   Location API View Sensor LoWPAN
   User-space driver
   AndroidAPI
   User application
   

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9. SPI઀ଓλονεΫϦʔϯͷHIDυϥΠόΛ࣮૷
   • SPIͷೖྗͰ͋ͬͯ΋Androidͷը໘࣮૷ͱͯ͠ѻ͑Δɻ
   

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10. User-space driverͷ࠷ߴͳϙΠϯτ
    • ΞϓϦέʔγϣϯͷϙʔλϏϦςΟΛߴΊΔɻ
    खࠒͳσόΠε͕ͳ͍ʂ
    AndroidͰཁ݅ݕ౼
    Android ThingsͰ
    ϓϩτλΠϐϯά
    ηϯαͰԿΛܭଌʁ
    Ϋϥ΢υଆͱ
    ͷػೳ෼୲
    ௨৴ํࣜʁ
    ϢʔβώΞͷ
    ϞοΫ
    ΞϓϦ͸ྲྀ༻ͯ͠ཁ݅ʹ͋ͬ
    ͨϋʔυ΢ΣΞΛ࡞Δɻ
    ͋Γ΋ͷͰσόΠε։ൃΛޮ཰తʹਐΊΒΕΔɻ
    

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11. • Android ThingsͷAI͸Tensorflow-Lite͔FirebaseML Kit
    Λར༻Ͱ͖Δɻ
    2.σόΠε΁ͷAIͷ૊ΈࠐΈ
    Android Things
    DNN Model
    User Application
    ɾInception-v3
    ɾmobilenet
    ɾmobilenet-ssd
    ɾFirebase (Mobile޲͚ͷBaaS)
    ɾAndroid Things͔Β΋ར༻Մೳ
    TensorFlow LiteΛ࢖͏͚ͩͳΒ
    RaspbianͰ΋Ͱ͖Δɻ
    

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12. AIػೳͷ࠷ߴͳϙΠϯτ
    • Firebase ML KitͰΤοδAIΛ؆୯࣮ݱ&ӡ༻·ͰΧόʔ
    1. ̑छྨͷೝࣝػೳͱΧελϜϞσϧ(tfliteܗࣜ)
    • ςΩετೝࣝɺإ/ಛ௃ࣝผɺQRίʔυ2࣍ݩόʔίʔυɺը૾ͷϥϕ
    Ϧϯά(γʔϯೝࣝ)ɺϥϯυϚʔΫൃݟ(౦ژλϫʔͱ͔)ɺΧελϜϞσ
    ϧ(tflite)
    2. DNNϞσϧͷ؅ཧ΍഑৴͕ߦ͑Δɻ
    • Ϟσϧ͚ͩΛωοτϫʔΫӽ͠ʹߋ৽Ͱ͖Δɻ
    ※ TPU(GoogleͷAI޲͚ASIC)ʹ΋ରԠ༧ఆ
    

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13. 3. Ϋϥ΢υͱͷ࿈ܞ
    •Cloud IoT CoreͷΫϥΠΞϯτϥΠϒϥϦ
    • Cloud IoT CoreΛى఺ʹGCPͱ઀ଓͰ͖Δɻ
    •Android Things Console
    • Android ThingsͷOSΞϓϦͷ؅ཧΛ͢ΔαʔϏε
    Ҿ༻ɿhttps://developers-jp.googleblog.com/2018/07/android-things-client-library-for.html
    

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14. Ϋϥ΢υ࿈ܞͷ࠷ߴͳϙΠϯτ
    •GCP΁ͷ઀ଓ͕؆୯
    •Cloud IoT CoreϥΠϒϥϦ
    •σόΠεϚωδϝϯτػೳ͕σϑΥϧτ
    •OSΞοϓσʔτʢOTAʣ
    •ΞϓϦέʔγϣϯͷ഑৴ʢOTAʣ
    σόΠεͷσʔλૹ৴ͱσόΠεϚωδϝϯτ
    

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15. ͦ͏͸ݴͬͯ΋ਏ͍ͱ͜Ζ΋͋ΔΜͰ͠ΐʁ
    

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16. Android Thingsͷਏ͍ϙΠϯτ
    

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17. Android Thingsͷਏ͍ϙΠϯτ
    • Androidʹؔ͢Δ஌ࣝΛڧཁͯ͘͠Δɻ
    • ޾͍ʹ΋AndroidͷάάϥϏϦςΟ͸ߴ͍ɻάάΕ͹ͳΜͱ͔ͳΔɻ
    • JavaͰ։ൃ͢ΔͷͩΔ͍ʢࢲ͸Java޷͖Ͱ͢ʣ
    • Android Studio(InteliJ IDEA)ͷ࢖͍ํΛ֮͑Δͱָ͘͠ͳΔɻ
    • Ͳ͏ͯ͠΋ݏͳΒKotolin
    • ରԠϋʔυ΢ΣΞ
    • ݸਓͰ͸࣮࣭Rspberry Pi 3B Ұ୒ɺ3B+ૣ͘དྷͯ͘Εɻ
    • ηΩϡϦςΟ
    • ϓϩμΫτʹ͢Δʹ͸ϙʔτดͨ͡ΓϢʔβݖݶઃఆͨ͠Γɻ
    • ଞͷϘʔυ΋ಉͩ͡ͱࢥ͏ɻ
    • Thingsࣗ਎ͷ৘ใ͕·ͩ·ͩগͳ͍ɻ
    • ΈΜͳͰ࢖ͬͯΤίγεςϜ࡞͍͖ͬͯ·ͤΜʁ
    • ύΠΦχΞਫ਼ਆͰऔΓ૊ΊΔɻ
    

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18. Android Things CAMP #2 (2018/08/26)
    • গ͠Ͱ΋ڵຯΛ࣋ͬͨΒੋඇࢀՃ͍ͩ͘͞ʂ(΋͘΋͘ձͰ͢)
    • νϡʔτϦΞϧ·Ͱ͓෇͖߹͍͠·͢ɻ
    • Android ΤϯδχΞ΋͓଴ͪͯ͠·͢ɻ(੾࣮)
    

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19. ͓͠·͍
    ※ৄࡉ͸http://masato-ka.hatenablog.com/entry/2018/07/22/202525
    

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