睡眠サービスの開発で苦労した話

by Satoshi Takada

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ਭ຾αʔϏεͷ։ൃͰۤ࿑ͨ͠࿩ ਭ຾ x IoT χϡʔϩεϖʔε&ϢχϑΝ Engineer Meetup גࣜձࣾχϡʔϩεϖʔε ߴాޛ࢙

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ࣗݾ঺հ • ߴాޛ࢙ʢ@satoshipʣ • 2008ʙ2018 ΫοΫύουגࣜձࣾ • Πϯϑϥ/৽نࣄۀ/ձһࣄۀ • 2018ʙ גࣜձࣾχϡʔϩεϖʔε • Ոి੍ޚʢϓϩτλΠϓʣ • AWS্ʹΠϯϑϥߏங • RailsΞϓϦέʔγϣϯ։ൃ

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ਭ຾श׳σβΠϯϓϩάϥϜͱ͸ • 3͔݄Ͱਭ຾श׳Λ਎ʹ͚ͭΔϓϩάϥϜ • ैۀһ޲͚ • ʮू߹ܗࣜͷݚमʯͱʮΞϓϦʯ • ཧ૝తͳਭ຾վળϓϩηεΛαϙʔτ͢ΔαʔϏε • 2019೥6݄ϦϦʔε

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ਭ຾श׳σβΠϯϓϩάϥϜ • EarlySenseࣾͷσόΠεΛར༻ • ମಈɾݺٵ਺ɾ৺ഥ਺Λجʹਭ຾৘ใΛ෼ੳ • ҩྍ༻ͷਭ຾ܭଌػثͱͷਭ຾/֮੧ͷҰக཰92%

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• EarlySenseࣾͷσόΠεΛར༻ • ମಈɾݺٵ਺ɾ৺ഥ਺Λجʹਭ຾৘ใΛ෼ੳ • ҩྍ༻ͷਭ຾ܭଌػثͱͷਭ຾/֮੧ͷҰக཰92% ਭ຾श׳σβΠϯϓϩάϥϜ

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ਭ຾श׳σβΠϯϓϩάϥϜ &BSMZ4FOTFࣾ χϡʔϩεϖʔε ਎ମσʔλΛղੳ͠ ਭ຾σʔλ΁ม׵ ਭ຾σʔλΛղੳ ମಈɾݺٵ਺ɾ৺ഥ਺ΛૹΔ ղੳ݁ՌΛऔಘ͢Δ BLE ΞϓϦέʔγϣϯσʔλΛऔಘ͢Δ

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ਭ຾श׳σβΠϯϓϩάϥϜ 1)ਭ຾ΛՄࢹԽ 2)ߦಈΛ͓͢͢Ί 3)ຖिϨϙʔτ

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ࠓ೔͸ͳ͢͜ͱ • ਭ຾αʔϏεͷ։ൃͰͲΜͳ໰୊ʹૺ۰͔ͨ͠ɺͲ͏ ରԠ͍͔ͯͬͨ͠

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ࠓ೔ͷਭ຾ͱ͸໰୊

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ࠓ೔ͷਭ຾ͱ͸໰୊ • αʔϏεͷੑ্࣭͢΂ͯͷجຊ • ࠓ೔9/25ͷਭ຾͸ʁ • 9/24໷ͷਭ຾ʁ9/25໷ͷਭ຾ʁ • γϑτۈ຿ऀʹͱͬͯࠓ೔ͱ͸ʁ 9/24 9/25 9/26 00:00 12:00 00:00 12:00 00:00

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ࠓ೔ͷਭ຾ͱ͸໰୊ ೔தۈ຿ऀʹݶఆͯ͠ఆٛͨ͠ • ສਓʹ౰ͯ͸·ΔఆٛΛ͢Δͷ͸೉͍͠ • ຊαʔϏε͸͓΋ʹ೔தۈ຿ऀ޲͚ • ͍͍ͩͨ20ʙ4࣌͜Ζʹ͸৸ͯ4ʙ11࣌͜Ζʹ͸ى͖Δ ͱͨ͠ • ۩ମతʹ͸X೔ͷ8࣌ʙX+1೔ͷ8࣌ʹܭଌ։࢝ͨ͠ਭ຾ ΛX೔ͷਭ຾ͱఆٛͨ͠

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ன৸͸ਭ຾ʹೖΔͷ͔

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ன৸͸ਭ຾ʹೖΔͷ͔ • ன৸ʢԾ຾ʣ͸ύϑΥʔϚϯε޲্͕ظ଴Ͱ͖Δ • ன৸ΛͲ͏ѻ͏͔

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ன৸͸ਭ຾ʹೖΔͷ͔ Ұ൪௕͍ਭ຾ͷΈΛର৅ʹͨ͠ • ன৸ʢԾ຾ʣ͸ॏཁͳਭ຾ • ਭ຾ෆ଍Λิ͏͜ͱ͕Ͱ͖Δ • ਭ຾͕࣌ؒॆ෼͔൑அ͢Δ͜ͱ͕Ͱ͖Δ • ͔͠͠ຊαʔϏε͸نଇਖ਼͘͠ॆ෼ͳਭ຾࣌ؒΛ֬อ ͍ͯ͠Δঢ়ଶ • Ұ೔ͰҰ൪௕͍ਭ຾Λຊਭ຾ͱఆٛͯ͠ຊਭ຾ͷΈΛ ධՁ͢Δ

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ਭ຾΁ͷޮՌ͕෼͔Δ·Ͱ ͕͔͔࣌ؒΔ

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ਭ຾΁ͷޮՌ͕෼͔Δ·Ͱ͕͔͔࣌ؒΔ • ຊ࣭తʹਭ຾վળΛ࣮ײ͢Δʹ͸਺ϲ݄͔͔Δ • ͓٬༷͕ޮՌΛ࣮ײ͢Δ·Ͱ͕͔͔࣌ؒΔ • ։ൃऀ͕ϓϩμΫτΛධՁ͢Δͷʹ͕͔͔࣌ؒΔ

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ਭ຾΁ͷޮՌ͕෼͔Δ·Ͱ͕͔͔࣌ؒΔ ୹ظతͳ࣮ײ͕Ͱ͖ΔΑ͏ઃܭͨ͠ • ೔ʑͷश׳෇͚Ͱখ͞ͳมԽΛ࣮ײ • ೋ౓৸͢Δͱ͖͸໌Δ͘͢Δ͜ͱͰମ಺ϦζϜ͕ཚ Εͳ͍࣮ײ • ؼ୐࣌ͷిंͰ຾Βͳ͍͜ͱͰ৸͖ͭͷมԽΛ࣮ײ • 4ͭͷεςʔδʹ෼͚੒௕΁ͷมԽΛ࣮ײ • গͣͭ͠਎ʹ෇͚͍ͯΔײ֮

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ಈ࡞֬ೝʹ͕͔͔࣌ؒΔ

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ಈ࡞֬ೝʹ͕͔͔࣌ؒΔ • ͪΌΜͱܭଌͰ͖͍ͯΔ͔͸৸ͳ͍ͱ෼͔Βͳ͍ • ։ൃ౰ॳ͸ܭଌͦͷ΋ͷ͕ෆ҆ఆͩͬͨ • େ͖Ίͷػೳ௥Ճ͕ܭଌʹӨڹΛ༩͍͑ͯͳ͍͔֬ೝ ͍ͨ͠

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ಈ࡞֬ೝʹ͕͔͔࣌ؒΔ ࣮ࡍʹԾ຾ࣨͰ৸ͯ΋Βͬͨ… • ʢϕουͷ্ʹ৐ͤͨΒܭଌͰ͖ΔσόΠε͕͋Δͱ͍ ͍ͷ͚ͩͲʣ

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ىচ࣌ࠁΛਖ਼֬ʹ೺ѲͰ͖ͳ͍

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ىচ࣌ࠁΛਖ਼֬ʹ೺ѲͰ͖ͳ͍ • ىচ࣌͸ਭ຾΁ͷҙ͕ࣝߴ͍ • ىচ௚ޙʹϓογϡ௨஌ΛૹΔͳͲ͍ͨ͠ • ֮੧ͯ͠গͨ͠͠λΠϛϯά • →຾Εͳ͍ͷ͔΋͠Εͳ͍ • ཭চͨ͠λΠϛϯά • →τΠϨʹߦ͚͔ͬͨͩ΋͠Εͳ͍

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ىচ࣌ࠁΛਖ਼֬ʹ೺ѲͰ͖ͳ͍ ઌिͷฏۉ֮੧࣌ࠁΛݩʹܭࢉͨ͠ • աڈͷ࣮੷͔Βىচ௚ޙͰ͸ͳ͍͕஗͗͢ͳ͍λΠϛ ϯάʹϓογϡ௨஌ΛૹΔ • ࡢ൩ͷਭ຾͕ͳ͍৔߹͸ૹΒͳ͍

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αʔόଆͰ෼͔Βͳ͍͜ͱ͕ଟ͍

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αʔόଆͰ෼͔Βͳ͍͜ͱ͕ଟ͍ • ΫϥΠΞϯτΞϓϦ͕௚઀EarlySenseࣾͱ௨৴͍ͯ͠Δ ͷͰͦͷؒͷ༷ࢠ͕෼͔Βͳ͍ • ܭଌࣦഊ࣌ʹηϯαʔىҼͳͷ͔৸۩؀ڥͳͷ͔ιϑ τ΢ΣΞόάͳͷ͔੾Γ෼͚͕೉͍͠ &BSMZ4FOTFࣾ χϡʔϩεϖʔε

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αʔόଆͰ෼͔Βͳ͍͜ͱ͕ଟ͍ ͓٬༷ʹ͓ئ͍ͯ͠௨৴ϩάΛૹ͍͍ͬͯͨͩͨ • εϚʔτͰͳ͍ղܾࡦ • netfoxΛ࢖͍΍͘͢վ଄ͯ͠૊ΈࠐΜͰ͍Δ • ඞཁͳ௨৴ͷΈʹϑΟϧλϦϯά • աڈϩά΋࢒͢ • ৸۩؀ڥ౳ʹ͍ͭͯ͸׬શͳϚχϡΞϧରԠ

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·ͱΊ

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·ͱΊ • ਭ຾Λѻ͏αʔϏε։ൃͰ͸࣌ؒʹؔ࿈͢Δۤ࿑͕ଟ ͔ͬͨ • ԿͷͨΊͷαʔϏε͔͔Βߟ͑ͯ࢓༷ΛܾΊ͍ͯͬͨ • ਓྗͰͳΜͱ͔͢Δ͜ͱ΋ͦͦ͋ͬͨ͜͜

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠