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Android ThingsでIoT/AIなデバイス開発しよう
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masato-ka
August 20, 2018
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Android ThingsでIoT/AIなデバイス開発しよう
masato-ka
August 20, 2018
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Transcript
Android ThingsͰIoT/AIͳ σόΠε։ൃ͠·͠ΐ͏ɻ 2018/08/20 @masato_ka(·͞ͱ͔)
ࠓͷLTͷ༰ Android ThingsΛ͏ͱخ͜͠ ͱͰ͢ɻ
Android Thingsͬͯͳʹʁ • Android(Android O)ϕʔεʹIoTσόΠε͚ʹΧελϚ Πζͨ͠OS • ̎̌̍̔ 5݄ʹVer 1.0.0ʢ8݄Ͱ
Ver1.0.3ʣ • Things Support LibraryͰσόΠεͷपล I/OʹΞΫηεͰ͖Δɻ • ΠϯετʔϧͰ͖ΔΞϓϦ1ͭͰΞϓϦέʔγϣϯ͕ࣗಈىಈ͢Δɻ • Raspberry Pi 3BͳͲෳͷϘʔυʹରԠ͍ͯ͠Δɻ • LenovoͷSmart Display͕Android Things 1.0.0ൃͷϓϩμΫτ ༻్: Raspberry PiͰ࡞ΕΔσόΠεେମ࡞ΕΔɻ
AndroidThingsͬͯΔਓ͋Μ·Γฉ͔ͳ͍ɻ •Android Thingsɻɻɻ ※Arduinoѹత͗͢ΔͨΊআ֎
ʲࠓͷϞνϕʔγϣϯʳ ̍ɽAndroid Thingsͷ͍͍ͱ͜Λͬͱͬͯʂ ̎ɽAndroid ThingsΛ͏ਓΛ૿͍ͨ͠
ͰɺAndroid ThingsΛ͏ͱԿ͕خ͍͠ͷʁ
Android Things ͷ࠷ߴͳ3ͭͷϙΠϯτ 1. User-space driver •ಠࣗͷσόΠεΛAndroidͷAPIʹ౷߹ 2. σόΠεͷAIͷΈࠐΈ •ΠϯελϯτʹAIػೳΛσόΠεʹՃ
3. Ϋϥυͱͷ࿈ܞ •σόΠεϚωδϝϯτؚΊͨΫϥυ࿈ܞ
पลI/OΛAndroidͷAPIͰѻ͑ΔΑ͏ʹ͢Δɻ Android Things OS UART I2C/SPI PWM I/O 1.User-space driver
GPSϞδϡʔϧ ηϯα/LED/OLED ϥδίϯαʔϘ SW/LED ※I2SAudio APIͰΞΫηε͢Δɻ Things Support Library Location HID Sensor LoWPAN Location API View Sensor LoWPAN User-space driver AndroidAPI User application
SPIଓλονεΫϦʔϯͷHIDυϥΠόΛ࣮ • SPIͷೖྗͰ͋ͬͯAndroidͷը໘࣮ͱͯ͠ѻ͑Δɻ
User-space driverͷ࠷ߴͳϙΠϯτ • ΞϓϦέʔγϣϯͷϙʔλϏϦςΟΛߴΊΔɻ खࠒͳσόΠε͕ͳ͍ʂ AndroidͰཁ݅ݕ౼ Android ThingsͰ ϓϩτλΠϐϯά ηϯαͰԿΛܭଌʁ
Ϋϥυଆͱ ͷػೳ୲ ௨৴ํࣜʁ ϢʔβώΞͷ ϞοΫ ΞϓϦྲྀ༻ͯ͠ཁ݅ʹ͋ͬ ͨϋʔυΣΞΛ࡞Δɻ ͋ΓͷͰσόΠε։ൃΛޮతʹਐΊΒΕΔɻ
• Android ThingsͷAITensorflow-Lite͔FirebaseML Kit Λར༻Ͱ͖Δɻ 2.σόΠεͷAIͷΈࠐΈ Android Things DNN Model
User Application ɾInception-v3 ɾmobilenet ɾmobilenet-ssd ɾFirebase (Mobile͚ͷBaaS) ɾAndroid Things͔Βར༻Մೳ TensorFlow LiteΛ͏͚ͩͳΒ RaspbianͰͰ͖Δɻ
AIػೳͷ࠷ߴͳϙΠϯτ • Firebase ML KitͰΤοδAIΛ؆୯࣮ݱ&ӡ༻·ͰΧόʔ 1. ̑छྨͷೝࣝػೳͱΧελϜϞσϧ(tfliteܗࣜ) • ςΩετೝࣝɺإ/ಛࣝผɺQRίʔυ2࣍ݩόʔίʔυɺը૾ͷϥϕ Ϧϯά(γʔϯೝࣝ)ɺϥϯυϚʔΫൃݟ(౦ژλϫʔͱ͔)ɺΧελϜϞσ
ϧ(tflite) 2. DNNϞσϧͷཧ৴͕ߦ͑Δɻ • Ϟσϧ͚ͩΛωοτϫʔΫӽ͠ʹߋ৽Ͱ͖Δɻ ※ TPU(GoogleͷAI͚ASIC)ʹରԠ༧ఆ
3. Ϋϥυͱͷ࿈ܞ •Cloud IoT CoreͷΫϥΠΞϯτϥΠϒϥϦ • Cloud IoT CoreΛىʹGCPͱଓͰ͖Δɻ •Android
Things Console • Android ThingsͷOSΞϓϦͷཧΛ͢ΔαʔϏε Ҿ༻ɿhttps://developers-jp.googleblog.com/2018/07/android-things-client-library-for.html
Ϋϥυ࿈ܞͷ࠷ߴͳϙΠϯτ •GCPͷଓ͕؆୯ •Cloud IoT CoreϥΠϒϥϦ •σόΠεϚωδϝϯτػೳ͕σϑΥϧτ •OSΞοϓσʔτʢOTAʣ •ΞϓϦέʔγϣϯͷ৴ʢOTAʣ σόΠεͷσʔλૹ৴ͱσόΠεϚωδϝϯτ
ͦ͏ݴͬͯਏ͍ͱ͜Ζ͋ΔΜͰ͠ΐʁ
Android Thingsͷਏ͍ϙΠϯτ
Android Thingsͷਏ͍ϙΠϯτ • Androidʹؔ͢ΔࣝΛڧཁͯ͘͠Δɻ • ͍ʹAndroidͷάάϥϏϦςΟߴ͍ɻάάΕͳΜͱ͔ͳΔɻ • JavaͰ։ൃ͢ΔͷͩΔ͍ʢࢲJava͖Ͱ͢ʣ • Android
Studio(InteliJ IDEA)ͷ͍ํΛ֮͑Δͱָ͘͠ͳΔɻ • Ͳ͏ͯ͠ݏͳΒKotolin • ରԠϋʔυΣΞ • ݸਓͰ࣮࣭Rspberry Pi 3B Ұɺ3B+ૣ͘དྷͯ͘Εɻ • ηΩϡϦςΟ • ϓϩμΫτʹ͢Δʹϙʔτดͨ͡ΓϢʔβݖݶઃఆͨ͠Γɻ • ଞͷϘʔυಉͩ͡ͱࢥ͏ɻ • Thingsࣗͷใ͕·ͩ·ͩগͳ͍ɻ • ΈΜͳͰͬͯΤίγεςϜ࡞͍͖ͬͯ·ͤΜʁ • ύΠΦχΞਫ਼ਆͰऔΓΊΔɻ
Android Things CAMP #2 (2018/08/26) • গ͠ͰڵຯΛ࣋ͬͨΒੋඇࢀՃ͍ͩ͘͞ʂ(͘͘ձͰ͢) • νϡʔτϦΞϧ·Ͱ͓͖߹͍͠·͢ɻ •
Android ΤϯδχΞ͓ͪͯ͠·͢ɻ(࣮)
͓͠·͍ ※ৄࡉhttp://masato-ka.hatenablog.com/entry/2018/07/22/202525