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1.1. ããŒã³ã³ãšã¯äœãïŒ
ããŒã³ã³æè¡ã¯ãè¿å¹Žæ³šç®ãéããŠããç¡ç·éä¿¡æè¡ã®äžçš®ã§ãBluetooth Low EnergyïŒBLEïŒã䜿çšããŠãè¿è·é¢ã®æ å ±äŒéãäœçœ®æ å ±ã®ååŸãè¡ãããšãã§ããŸãã
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1.2. ããŒã³ã³ã®æŽå²ãšçºå±
ããŒã³ã³æè¡ã®æŽå²ã¯ã2010幎ã«å§ãŸããŸãããã®å¹Žã«ãBluetooth SIGïŒSpecial Interest GroupïŒããBluetooth 4.0ã®äžéšãšããŠBluetooth Low EnergyïŒBLEïŒãçºè¡šããŸãããBLEã¯ãåŸæ¥ã®Bluetoothã«æ¯ã¹ãŠæ¶è²»é»åãéåžžã«äœããå°åããã€ã¹ã«ãæèŒå¯èœãªããšãããããŒã³ã³æè¡ã®åºç€ãšãªããŸããã
2013幎ã«ã¯ãAppleãiBeaconãšããç¬èªã®ããŒã³ã³æè¡ãçºè¡šããããŒã³ã³æè¡ãåºãç¥ãããããã«ãªããŸãããiBeaconã¯ãiOSããã€ã¹ãšã®é£æºã匷åããäœçœ®æ å ±ã掻çšããã¢ããªã±ãŒã·ã§ã³ãéçºãããããã«ãªããŸããããã®åŸãGoogleã2015幎ã«EddystoneãšããããŒã³ã³æè¡ãçºè¡šããAndroidããã€ã¹ã«ã察å¿ããããŒã³ã³ãæ®åãå§ããŸããã
ããŒã³ã³æè¡ã¯ããã®åŸãé²åãç¶ããçŸåšã§ã¯æ§ã ãªç£æ¥ãã·ãŒã³ã§å©çšãããããã«ãªããŸããããŸããIoTïŒInternet of ThingsïŒã5Gãšãã£ãæ°ããªæè¡ãšã®èåã«ããããããªãçºå±ãæåŸ ãããŠããŸãã
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2.1. Bluetooth Low Energy (BLE) ã®åºæ¬
ããŒã³ã³æè¡ã®æ ¹å¹¹ãæãBluetooth Low EnergyïŒBLEïŒã¯ãBluetooth 4.0ããå°å ¥ãããçé»åæè¡ã§ãã
åŸæ¥ã®Bluetoothãšæ¯èŒããŠæ¶è²»é»åãå€§å¹ ã«äœæžãããŠãããããŒã³ã³ããã€ã¹ã®å°ååãé·å¯¿åœåã«å¯äžããŠããŸãããŸããéä¿¡è·é¢ãåŸæ¥ã®Bluetoothãããåºãããæ倧ã§100ã¡ãŒãã«çšåºŠãŸã§å¯èœã§ããBLEã¯ãããŒã³ã³ã ãã§ãªãããŠã§ã¢ã©ãã«ããã€ã¹ãIoTããã€ã¹ãªã©å¹ åºãçšéã§æŽ»çšãããŠããŸãã
2.2. ããŒã³ã³ã®çš®é¡ãšç¹åŸŽ
äž»ãªããŒã³ã³ã®çš®é¡ã«ã¯ãAppleã®ãiBeaconããšGoogleã®ãEddystoneãããããŸããiBeaconã¯ãiOSããã€ã¹ãšã®é£æºã匷åãããŠãããäž»ã«Apple補åã察象ãšããã¢ããªã±ãŒã·ã§ã³éçºã«é©ããŠããŸããEddystoneã¯ãAndroidããã€ã¹ã«ã察å¿ããURLãçŽæ¥éä¿¡ããæ©èœãç¹åŸŽçã§ãã
ããã«ãããã¢ããªãã€ã³ã¹ããŒã«ããŠããªããŠãŒã¶ãŒã«ãæ å ±æäŸãå¯èœãšãªã£ãŠããŸãã
2.3. ããŒã³ã³ã®éä¿¡ãããã³ã«
ããŒã³ã³ã®éä¿¡ãããã³ã«ã¯ãäž»ã«ãã¢ããã¿ã€ãžã³ã°ããšåŒã°ããé»æ³¢ã®çºä¿¡ãšããã¹ãã£ãã³ã°ããšåŒã°ããé»æ³¢ã®åä¿¡ã«åãããŸãã
ããŒã³ã³ããã€ã¹ã¯ãäžå®ã®ééã§ã¢ããã¿ã€ãžã³ã°ãã±ãããéä¿¡ããè¿ãã«ããã¹ããŒããã©ã³ãã¿ãã¬ããããããåä¿¡ããŠéä¿¡ãæç«ããŸããã¢ããã¿ã€ãžã³ã°ãã±ããã«ã¯ãããŒã³ã³ã®èå¥æ å ±ïŒUUIDãMajorãMinorïŒãéä¿¡é»åïŒTx PowerïŒãªã©ãå«ãŸããŸãããããã®æ å ±ãå©çšããŠãã¢ããªã±ãŒã·ã§ã³åŽã§ãŠãŒã¶ãŒã®äœçœ®æ å ±ãããã€ã¹éã®è·é¢ãæšå®ããŸãã
2.4. ããŒã³ã³ã®é»æ³¢ã®æž¬å®æ¹æ³
ããŒã³ã³ã®é»æ³¢ã枬å®ããæ¹æ³ã¯ãäž»ã«ãåä¿¡ä¿¡å·åŒ·åºŠææ°ïŒRSSIïŒããå©çšããŠããŸãã
RSSIã¯ãé»æ³¢ã®åŒ·ããè¡šãå€ã§ãè·é¢ãé¢ãããšæžè¡°ããŸããã¹ããŒããã©ã³ãã¿ãã¬ãããããŒã³ã³ããåä¿¡ããRSSIãšãããŒã³ã³ã®éä¿¡é»åïŒTx PowerïŒãæ¯èŒããããšã§ãããã€ã¹éã®è·é¢ãæšå®ããŸãããã ããé»æ³¢ã®æžè¡°ã¯ç°å¢èŠå ã«ãã£ãŠã圱é¿ãåãããããæ£ç¢ºãªè·é¢æž¬å®ã¯é£ãããšãããŠããŸãã
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å ±ãšããããã®RSSIãå©çšããŠãã¹ããŒããã©ã³ãã¿ãã¬ããã®äœçœ®ãäžè§æž¬éã«ãã£ãŠç®åºããŸããããã«ããããã粟床ã®é«ãäœçœ®æ
å ±ã®ååŸãå¯èœã«ãªããŸãã
ããŒã³ã³ã®é»æ³¢æž¬å®æ¹æ³ã«ã¯ãRSSIãããªã©ãã¬ãŒã·ã§ã³æ³ã®ä»ã«ããæ©æ¢°åŠç¿ããã£ãŒãã©ãŒãã³ã°ãçšããã¢ã«ãŽãªãºã ãéçºãããŠãããä»åŸã¯ãããªã粟床åäžãæåŸ
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3.1. ãªããŒã«æ¥çã§ã®æŽ»çš
ããŒã³ã³æè¡ã¯ãªããŒã«æ¥çã§å¹ åºã掻çšãããŠããŸãã
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3.2. ã€ãã³ããå±ç€ºäŒã§ã®æŽ»çš
ã€ãã³ããå±ç€ºäŒã§ã¯ãããŒã³ã³ãçšããŠåå è ã«åããæ å ±æäŸãæ¡å ãè¡ãããŠããŸãã
ããŒã³ã³ãèšçœ®ãããããŒã¹ãå±ç€ºç©ã®è¿ãã§ãã¹ããŒããã©ã³ã«è©³çŽ°æ å ±ãé¢é£ãªã³ã¯ã衚瀺ãããããšã§ãåå è ã®èå³ãåŒãã€ããããšãã§ããŸããããã«ãåå è ã®åç·ãåæããããšã§ãã€ãã³ãã®æ¹åãå¹æ枬å®ãè¡ããŸãã
3.3. éåå°ã芳å å°ã§ã®æŽ»çš
éåå°ã芳å å°ã§ããããŒã³ã³æè¡ã®æŽ»çšãé²ãã§ããŸãã
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3.4. ã¹ããŒãããŒã ããªãã£ã¹ã§ã®æŽ»çš
ããŒã³ã³æè¡ã¯ãã¹ããŒãããŒã ããªãã£ã¹ç°å¢ã§ãå©çšãããŠããŸãã
äŸãã°ãèªå® ã«èšçœ®ããããŒã³ã³ããã¹ããŒããã©ã³ããŠã§ã¢ã©ãã«ããã€ã¹ãšé£æºããŠãç §æããšã¢ã³ã³ã®å¶åŸ¡ãèªååããããšãã§ããŸãããªãã£ã¹ã§ã¯ãããŒã³ã³ãå©çšããåºå ¥ã管çã座åžäºçŽãäŒè°å®€ã®å©çšç¶æ³ã®ç¢ºèªãªã©ãå¯èœã«ãªããŸãã
3.5. 亀éã»ããã²ãŒã·ã§ã³ã§ã®æŽ»çš
ããŒã³ã³æè¡ã¯äº€éã»ããã²ãŒã·ã§ã³åéã§ã掻çšãããŠããŸããé§ ã空枯ãªã©ã®å€§èŠæš¡æœèšå ã§ãããŒã³ã³ãå©çšããæ¡å ã¢ããªãæäŸãããããšã§ãè¿·ããããå Žæã§ãã¹ã ãŒãºã«ç®çå°ã«ãã©ãçãããšãã§ããŸãã
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å ±ããªã¢ã«ã¿ã€ã ã§ç¥ãããšãã§ããå¹ççãªé§è»å Žæ¢ããå¯èœã«ãªããŸããããŒã³ã³æè¡ã掻çšããããã²ãŒã·ã§ã³ã¢ããªã¯ãå±å
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4.1. ããŒã³ã³å°å ¥ã®ã¡ãªãããšãã¡ãªãã
ããŒã³ã³å°å ¥ã«ã¯ã以äžã®ã¡ãªãããšãã¡ãªããããããŸãã
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- 顧客ã®åç·åæãè¡åãã¿ãŒã³ã®ææ¡ã容æ
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4.2. ããŒã³ã³éžå®ã®ãã€ã³ã
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- 察å¿ãããã³ã«ïŒiBeaconãEddystoneãªã©ã䜿çšç®çã«å¿ãããããã³ã«ã«å¯Ÿå¿ããããŒã³ã³ãéžã¶ã
- éä¿¡ç¯å²ïŒèšçœ®ç°å¢ãçšéã«å¿ããéä¿¡ç¯å²ãæã€ããŒã³ã³ãéžã¶ã
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- äŸ¡æ ŒïŒäºç®ã«åã£ãäŸ¡æ Œåž¯ã®ããŒã³ã³ãéžã¶ã
4.3. ããŒã³ã³èšçœ®ã®ãã€ã³ã
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4.4. ããŒã¿åæãšæŽ»çšæ¹æ³
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- ã€ãã³ãå¹æ枬å®ïŒã€ãã³ããå±ç€ºäŒã§ã®åå è ã®åç·ãæ»åšæéãåæããå¹æ枬å®ãæ¹åçãç«æ¡ããã
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5.1. IoTãšããŒã³ã³ã®èå
IoTïŒã€ã³ã¿ãŒãããã»ãªãã»ã·ã³ã°ãºïŒã¯ãããŸããŸãªããã€ã¹ãã€ã³ã¿ãŒãããã«æ¥ç¶ãããããšã§ãå¹ççãªæ å ±äº€æãèªååãå¯èœã«ãªãæè¡ã§ãã
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5.4. ã»ãã¥ãªãã£ãšãã©ã€ãã·ãŒã®èª²é¡
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