{"id":289328,"date":"2023-11-27T21:52:56","date_gmt":"2023-11-27T14:52:56","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=289328"},"modified":"2023-11-27T21:52:56","modified_gmt":"2023-11-27T14:52:56","slug":"lora","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/lora\/","title":{"rendered":"LoRa l\u00e0 g\u00ec? Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ra sao? C\u00f3 vai tr\u00f2 g\u00ec trong IoT?"},"content":{"rendered":"

Long Range l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c li\u00ean quan \u0111\u1ebfn Internet. V\u00e0 n\u1ebfu b\u1ea1n \u0111ang t\u00f2 m\u00f2 v\u1ec1 k\u1ef9 thu\u1eadt n\u00e0y th\u00ec h\u00e3y \u0111\u1ecdc qua b\u00e0i vi\u1ebft b\u00ean d\u01b0\u1edbi \u0111\u00e2y c\u1ee7a Ho\u00e0ng H\u00e0 Mobile nh\u00e9. Ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch r\u00f5 cho b\u1ea1n v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u0169ng nh\u01b0 vai tr\u00f2 c\u1ee7a <\/span>LoRa <\/b>trong IoT l\u00e0 g\u00ec?<\/span><\/p>\n

Kh\u00e1i ni\u1ec7m LoRa l\u00e0 g\u00ec?<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 h\u1ed7 tr\u1ee3 vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb IoT (Internet of Things) \u1edf xa m\u00e0 kh\u00f4ng \u0111\u00f2i h\u1ecfi n\u0103ng l\u01b0\u1ee3ng l\u1edbn. \u0110\u01b0\u1ee3c s\u1edf h\u1eefu b\u1edfi Semtech Corporation t\u1eeb n\u0103m 2012, Long Range \u0111\u00e3 nhanh ch\u00f3ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ph\u1ed5 bi\u1ebfn. \u0110\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c khu v\u1ef1c m\u00e0 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u g\u1eb7p kh\u00f3 kh\u0103n v\u1ec1 kho\u1ea3ng c\u00e1ch, c\u0169ng nh\u01b0 c\u1ea7n ph\u1ea3i khu\u1ebfch \u0111\u1ea1i c\u00f4ng su\u1ea5t th\u00ec m\u1edbi nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng tin.<\/span><\/p>\n

M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m l\u1edbn c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y l\u00e0 s\u1eed d\u1ee5ng t\u1ea7n s\u1ed1 th\u1ea5p v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng th\u00e2m nh\u1eadp t\u1ed1t qua c\u00e1c v\u1eadt c\u1ea3n. Bao g\u1ed3m t\u01b0\u1eddng v\u00e0 t\u00f2a nh\u00e0, t\u1eeb \u0111\u00f3 g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng \u1ed5n \u0111\u1ecbnh c\u1ee7a k\u1ebft n\u1ed1i.<\/span><\/p>\n

\"lora-1\"<\/picture><\/p>\n

\u0110\u1ed3ng th\u1eddi, trong th\u1eddi \u0111\u1ea1i IoT ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n hi\u1ec7n \u0111\u1ea1i nh\u01b0 ng\u00e0y nay, <\/span>LoRa <\/b>c\u0169ng \u0111\u01b0\u1ee3c v\u1eadn d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau. Ch\u1eb3ng h\u1ea1n nh\u01b0 qu\u1ea3n l\u00fd th\u00f4ng minh, n\u00f4ng nghi\u1ec7p th\u00f4ng minh, v\u00e0 theo d\u00f5i h\u00e0ng h\u00f3a. Th\u1eadm ch\u00ed, c\u00e1c th\u00e0nh ph\u1ed1 th\u00f4ng minh th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 gi\u00e1m s\u00e1t v\u00e0 \u0111i\u1ec1u khi\u1ec3n c\u00e1c h\u1ec7 th\u1ed1ng nh\u01b0 \u0111\u00e8n \u0111\u01b0\u1eddng, c\u1ea3m bi\u1ebfn n\u01b0\u1edbc v\u00e0 \u0111o l\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed. \u0110\u1ed3ng th\u1eddi, do t\u00ednh ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf v\u00e0 theo d\u00f5i s\u1ee9c kh\u1ecfe.<\/span><\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Long Range ra sao?<\/b><\/h2>\n

\u0110\u1ec3 ph\u00e1t tri\u1ec3n v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c c\u00f4ng ngh\u1ec7 Long Range, nh\u00e0 ph\u00e1t tri\u1ec3n \u0111\u00e3 t\u1eadn d\u1ee5ng tri\u1ec7t \u0111\u1ec3 t\u00ednh n\u0103ng c\u1ee7a k\u1ef9 thu\u1eadt Chirp Spread Spectrum. D\u00e0nh cho nh\u1eefng ai ch\u01b0a bi\u1ebft th\u00ec \u0111\u00e2y l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y, trong \u0111\u00f3 t\u1ea7n s\u1ed1 c\u1ee7a t\u00edn hi\u1ec7u thay \u0111\u1ed5i theo th\u1eddi gian d\u1ef1a tr\u00ean m\u1ed9t bi\u1ec3u \u0111\u1ed3 s\u00f3ng ch\u1eb1ng ch\u1ecbt..<\/span><\/p>\n

C\u1ee5 th\u1ec3, \u0111\u1ed1i v\u1edbi nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Long Range th\u00ec \u0111\u1ea7u ti\u00ean n\u00f3 s\u1ebd t\u1eadn d\u1ee5ng c\u00f4ng ngh\u1ec7 c\u1ee7a Chirp signal s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh hai lo\u1ea1i l\u00e0 t\u0103ng theo th\u1eddi gian \u201cUp-Chirp\u201d v\u00e0 gi\u1ea3m d\u1ea7n theo th\u1eddi gian \u201cDown-Chirp\u201d. Trong \u0111\u00f3, d\u1eef li\u1ec7u g\u1ed1c s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t t\u00edn hi\u1ec7u nh\u1edd v\u00e0o khu\u1ebfch \u0111\u1ea1i m\u1ed9t t\u1ea7n s\u1ed1 r\u1ea5t l\u1edbn. Ti\u1ebfp t\u1ee5c sau \u0111\u00f3, d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ph\u00e2n t\u00e1ch t\u1eebng ph\u1ea7n nh\u1ecf v\u00e0 t\u1ea1o th\u00e0nh s\u00f3ng Chirp.\u00a0<\/span><\/p>\n

\"lora-2\"<\/picture><\/p>\n

Cu\u1ed1i c\u00f9ng \u0111\u1ec3 g\u1eedi t\u00edn hi\u1ec7u cho b\u00ean ng\u01b0\u1eddi nh\u1eadn th\u00ec h\u1ec7 th\u1ed1ng <\/span>s\u1ebd t\u1eadn d\u1ee5ng anten ph\u00e1t s\u00f3ng. \u0110\u1ed3ng th\u1eddi, nh\u1edd v\u00e0o Spread Spectrum m\u00e0 s\u1ef1 tr\u1ea3i r\u1ed9ng ph\u00e1t t\u00edn hi\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u, c\u0169ng nh\u01b0 t\u0103ng t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a h\u1ec7 th\u1ed1ng.<\/span><\/p>\n

Ch\u01b0a h\u1ebft, nh\u1edd v\u00e0o s\u1ef1 ph\u00e2n t\u00e1ch c\u1ee7a c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i m\u00e0 c\u00e1c t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c ph\u00e1t t\u1eeb k\u1ef9 thu\u1eadt Long Range ch\u1ec9 c\u1ea7n c\u00f4ng su\u1ea5t th\u1ea5p. Ch\u00ednh v\u00ec th\u1ebf m\u00e0 n\u00f3 \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i xa h\u01a1n, c\u00f3 khi l\u00ean \u0111\u1ebfn h\u00e0ng km.<\/span><\/p>\n

Ngo\u00e0i ra, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n bi\u1ebft th\u00eam v\u00e0i th\u00f4ng tin h\u1eefu \u00edch kh\u00e1c li\u00ean quan \u0111\u1ebfn b\u0103ng t\u1ea7n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y s\u1ebd r\u01a1i v\u00e0o kho\u1ea3ng t\u1eeb 430MHz \u0111\u1ebfn 915MHz. V\u00ed d\u1ee5 \u1edf ch\u00e2u \u00c1 th\u00ec b\u0103ng t\u1ea7n s\u1ed1 l\u00e0 430MHz, \u1edf Trung Qu\u1ed1c l\u00e0 780MHz, \u1edf USA l\u00e0 915MHz v\u00e0 m\u1ed9t s\u1ed1 khu v\u1ef1c ch\u00e2u \u00c2u l\u00e0 433MHz ho\u1eb7c 866MHz.<\/span><\/p>\n

LoRa c\u00f3 vai tr\u00f2 g\u00ec trong IoT?<\/b><\/h2>\n

C\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong l\u0129nh v\u1ef1c Internet of Things (IoT) b\u1eb1ng c\u00e1ch cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p truy\u1ec1n tin kh\u00f4ng d\u00e2y hi\u1ec7u qu\u1ea3. \u0110\u1eb7c bi\u1ec7t, chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi h\u1ec7 th\u1ed1ng m\u1ea1ng th\u00f4ng th\u01b0\u1eddng. Ch\u00ednh v\u00ec v\u1eady, n\u00f3 l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng IoT \u0111a d\u1ea1ng v\u00e0 ph\u1ee9c t\u1ea1p.<\/span><\/p>\n

Ch\u01b0a h\u1ebft, v\u1edbi kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i \u1edf m\u1ed9t kho\u1ea3ng c\u00e1ch xa \u0111\u00e3 l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t gi\u1ea3i ph\u00e1p \u01b0u vi\u1ec7t cho c\u00e1c \u1ee9ng d\u1ee5ng IoT \u1edf c\u00e1c khu v\u1ef1c. T\u1eeb n\u00f4ng th\u00f4n, \u0111\u00f4 th\u1ecb ho\u1eb7c trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p, n\u01a1i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng truy\u1ec1n th\u00f4ng c\u00f3 th\u1ec3 kh\u00f4ng ph\u00e1t tri\u1ec3n \u0111\u1ed3ng \u0111\u1ec1u.<\/span><\/p>\n

\"lora-3\"<\/picture><\/p>\n

C\u1ed9ng th\u00eam v\u00e0o \u0111\u00f3, c\u00f4ng ngh\u1ec7 c\u00f2n c\u00f3 gi\u00fap k\u1ebft n\u1ed1i r\u1ea5t t\u1ed1t c\u00e1c thi\u1ebft b\u1ecb IoT nh\u01b0 c\u1ea3m bi\u1ebfn, thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng, v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa. H\u01a1n n\u1eefa, m\u00f4 h\u00ecnh truy\u1ec1n th\u00f4ng hai chi\u1ec1u c\u1ee7a <\/span>LoRaWAN<\/b> cung c\u1ea5p kh\u1ea3 n\u0103ng g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u. T\u1eeb \u0111\u00f3, cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng ch\u1ec9 thu th\u1eadp th\u00f4ng tin m\u00e0 c\u00f2n nh\u1eadn l\u1ec7nh t\u1eeb trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n.<\/span><\/p>\n

Nh\u00ecn chung, \u0111\u1ed1i v\u1edbi IoT, Long Range ch\u00ednh l\u00e0 “c\u1ea7u n\u1ed1i” gi\u1eefa th\u1ebf gi\u1edbi v\u1eadt l\u00fd v\u00e0 m\u00f4i tr\u01b0\u1eddng s\u1ed1, mang l\u1ea1i kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i linh ho\u1ea1t v\u00e0 li\u00ean t\u1ee5c trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n. V\u1edbi t\u00ednh \u1ed5n \u0111\u1ecbnh, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i \u1edf xa, c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong vi\u1ec7c th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 tri\u1ec3n khai c\u1ee7a IoT tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/span><\/p>\n

C\u00f4ng ngh\u1ec7 LoRa c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt g\u00ec?<\/b><\/h2>\n

Sau khi ch\u00fang ta \u0111\u00e3 t\u00ecm hi\u1ec3u v\u1ec1 kh\u00e1i ni\u1ec7m c\u0169ng nh\u01b0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, b\u1ea1n \u0111\u1ecdc s\u1ebd c\u1ea7n bi\u1ebft th\u00eam v\u1ec1 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y. \u0110i\u1ec3m thu h\u00fat nhi\u1ec1u \u0111\u01a1n v\u1ecb l\u1edbn s\u1eed d\u1ee5ng Long Range l\u00e0 c\u00f3 nhi\u1ec1u ch\u1ee9c n\u0103ng, nh\u01b0ng kh\u00f4ng ti\u00eau t\u1ed1n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng. Nh\u01b0 v\u1eady, n\u00f3 s\u1ebd gi\u00fap gia t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a n\u0103ng l\u01b0\u1ee3ng pin, c\u0169ng nh\u01b0 kh\u00f4ng t\u1ed1n nhi\u1ec1u chi ph\u00ed v\u1eadn h\u00e0nh.<\/span><\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m ti\u1ebfp theo l\u00e0 v\u1ec1 k\u1ef9 thu\u1eadt truy\u1ec1n tuy c\u00f3 t\u1ed1c \u0111\u1ed9 th\u1ea5p nh\u01b0ng n\u00f3 v\u1eabn \u0111\u1ea3m b\u1ea3o cung c\u1ea5p \u0111\u1ee7 b\u0103ng th\u00f4ng s\u1ed1 cho c\u00e1c \u1ee9ng d\u1ee5ng trong Internet of Things (IoT). M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng nh\u01b0 \u0111\u1ecbnh v\u1ecb, theo d\u00f5i t\u00e0i nguy\u00ean v\u00e0 g\u1eedi th\u00f4ng tin tr\u1ea1ng th\u00e1i.<\/span><\/p>\n

\"lora-4\"<\/picture><\/p>\n

Ch\u01b0a h\u1ebft, c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f2n c\u00f3 ti\u00eau chu\u1ea9n h\u00f3a theo c\u00f4ng th\u1ee9c m\u1ea1ng m\u1edf. \u0110i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a l\u00e0 ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i c\u00e1c n\u00fat gi\u1eefa m\u00e1y t\u00ednh v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb kh\u00e1c thu\u1ed9c h\u1ec7 sinh th\u00e1i c\u1ee7a IoT. Nh\u01b0 v\u1eady, c\u00e1c nh\u00e0 m\u00e1y l\u1edbn c\u0169ng nh\u01b0 doanh nghi\u1ec7p s\u1ebd l\u1ef1a ch\u1ecdn c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c t\u00ednh \u1ed5n \u0111\u1ecbnh khi tri\u1ec3n khai c\u00e1c \u1ee9ng d\u1ee5ng IoT \u1edf m\u1ecdi n\u01a1i.<\/span><\/p>\n

\u01afu \u0111i\u1ec3m cu\u1ed1i c\u00f9ng ch\u00ednh l\u00e0 c\u00f4ng ngh\u1ec7 n\u00e0y \u0111ang s\u1edf h\u1eefu quy tr\u00ecnh m\u00e3 h\u00f3a \u0111\u1ea7u cu\u1ed1i end-to- end hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi c\u00e1i t\u00ean th\u00f4ng d\u1ee5ng l\u00e0 AES128. Th\u00f4ng qua \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 x\u00e1c th\u1ef1c th\u00f4ng tin qua l\u1ea1i l\u1eabn nhau, c\u0169ng nh\u01b0 \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c t\u00ednh b\u1ea3o m\u1eadt v\u00e0 to\u00e0n v\u1ec7 trong khi chuy\u1ec3n ph\u00e1t d\u1eef li\u1ec7u.<\/span><\/p>\n

C\u00f4ng ngh\u1ec7 LoRa c\u00f3 c\u00e1c h\u1ea1n ch\u1ebf g\u00ec?<\/b><\/h2>\n

Nh\u01b0 c\u00e1c th\u00f4ng tin ch\u00fang ta v\u1eeba \u0111\u1ecdc \u0111\u01b0\u1ee3c th\u00ec Long Range c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt v\u00e0 h\u1eefu \u00edch. Song song \u0111\u00f3, c\u00f4ng ngh\u1ec7 n\u00e0y c\u0169ng t\u1ed3n t\u1ea1i kh\u00f4ng \u00edt nh\u01b0\u1ee3c \u0111i\u1ec3m m\u00e0 b\u1ea1n c\u1ea7n bi\u1ebft \u0111\u1ebfn.\u00a0<\/span><\/p>\n

Ch\u1eb3ng h\u1ea1n y\u1ebfu \u0111i\u1ec3m l\u1edbn nh\u1ea5t c\u1ee7a Long Range ch\u00ednh l\u00e0 kh\u00f4ng th\u1ec3 n\u00e0o truy\u1ec1n t\u1ea3i \u0111\u01b0\u1ee3c c\u00e1c d\u1eef li\u1ec7u y\u00eau c\u1ea7u c\u00f4ng su\u1ea5t l\u1edbn. Do t\u1ea3i tr\u1ecdng c\u1ee7a c\u00f4ng ngh\u1ec7 ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf m\u1ee9c 100 byte. V\u00ec th\u1ebf, n\u1ebfu nh\u01b0 truy\u1ec1n c\u00e1c d\u1eef li\u1ec7u l\u1edbn s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i v\u00e0 nh\u1eadn th\u00f4ng tin.\u00a0<\/span><\/p>\n

\"lora-5\"<\/picture><\/p>\n

B\u00ean c\u1ea1nh \u0111\u00f3, \u0111\u1ed1i v\u1edbi cu\u1ed9c s\u1ed1ng ph\u1ed1 th\u1ecb t\u1ea5p n\u1eadp \u0111\u00f4ng d\u00e2n c\u01b0 th\u00ec kh\u1ea3 n\u0103ng l\u1eafp \u0111\u1eb7t gateway c\u00f2n g\u1eb7p nhi\u1ec1u h\u1ea1n ch\u1ebf.\u00a0 \u0110\u1eb7c bi\u1ec7t l\u00e0 khi c\u1ea7n tri\u1ec3n khai m\u1ea1ng \u1edf quy m\u00f4 l\u1edbn v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c thi\u1ebft b\u1ecb IoT. Ch\u00ednh v\u00ec th\u1ebf m\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng c\u1ee7a <\/span>LoRa <\/b>kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao.<\/span><\/p>\n

\u0110\u1ed3ng th\u1eddi, c\u00f4ng ngh\u1ec7 s\u1eed d\u1ee5ng c\u00e1c k\u00eanh t\u1ea7n s\u1ed1 c\u00f3 h\u1ea1n v\u00e0 c\u00f3 th\u1ec3 b\u1ecb h\u1ea1n ch\u1ebf trong vi\u1ec7c x\u1eed l\u00fd \u0111\u1ed3ng th\u1eddi m\u1ed9t l\u01b0\u1ee3ng l\u1edbn thi\u1ebft b\u1ecb truy c\u1eadp c\u00f9ng m\u1ed9t l\u00fac. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ee5ng \u0111\u1ed9 (collision) v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/span><\/p>\n

Ngo\u00e0i ra, \u0111\u1ec3 c\u00f3 th\u1ec3 tri\u1ec3n khai \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 th\u1ed1ng ho\u00e0n ch\u1ec9nh th\u00ec c\u1ea7n r\u1ea5t nhi\u1ec1u c\u1ed5ng v\u00e0 thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i. V\u00f4 h\u00ecnh chung, Long Range kh\u00f4ng y\u00eau c\u1ea7u chi ph\u00ed v\u1eadn h\u00e0nh, nh\u01b0ng \u0111\u01a1n v\u1ecb s\u1eed d\u1ee5ng c\u1ea7n b\u1ecf ra m\u1ed9t kho\u1ea3n chi ph\u00ed l\u1edbn \u0111\u1ec3 thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c n\u00f3.<\/span><\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a c\u00f4ng ngh\u1ec7 Long Range trong th\u1ef1c t\u1ebf<\/b><\/h2>\n

B\u00ean c\u1ea1nh kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c thi\u1ebft b\u1ecb IoT, Long Range v\u1eabn c\u00f2n h\u1ed7 tr\u1ee3 cho r\u1ea5t nhi\u1ec1u kh\u00eda c\u1ea1nh kh\u00e1c. V\u00e0 t\u1eeb nh\u1eefng \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a Long Range, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n bi\u1ebft th\u00eam v\u1ec1 kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y trong th\u1ef1c t\u1ebf. Nh\u1edd v\u00e0o \u0111\u00e2y, b\u1ea1n s\u1ebd bi\u1ebft c\u00e1ch s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt truy\u1ec1n th\u00f4ng tin t\u1eeb xa m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t.\u00a0<\/span><\/p>\n

Trong m\u00f4 h\u00ecnh nh\u00e0 \u1edf th\u00f4ng minh (Smart Home)<\/b><\/h3>\n

C\u00f4ng ngh\u1ec7 Long Range \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o nhi\u1ec1u \u1ee9ng d\u1ee5ng trong m\u00f4 h\u00ecnh nh\u00e0 th\u00f4ng minh, mang l\u1ea1i nh\u1eefng ti\u1ec7n \u00edch cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng. \u0110\u1ed9c \u0111\u00e1o nh\u1ea5t, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 mua c\u00e1c thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i v\u1edbi c\u00f4ng ngh\u1ec7 m\u1ea1ng n\u00e0y \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a tr\u1ea3i nghi\u1ec7m c\u1ee7a m\u00ecnh. Ch\u1eb3ng h\u1ea1n nh\u01b0 vi\u1ec7c mua \u0111\u00e8n, qu\u1ea1t, ho\u1eb7c m\u00e1y l\u1ea1nh c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa. Nh\u01b0 v\u1eady, ch\u1ec9 c\u1ea7n b\u1ea1n th\u00f4ng qua app \u0111i\u1ec7n tho\u1ea1i l\u00e0 \u0111\u00e3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng minh n\u00e0y si\u00eau ti\u1ec7n \u00edch.<\/span><\/p>\n

\"lora-6\"<\/picture><\/p>\n

C\u1ed9ng th\u00eam v\u00e0o \u0111\u00f3, <\/span>LoRa <\/b>\u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt nh\u00e0 th\u00f4ng minh \u0111\u1ec3 truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn b\u00e1o \u0111\u1ed9ng v\u00e0 camera an ninh v\u1ec1 m\u1ed9t trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng. T\u1eeb \u0111\u00f3, gia ch\u1ee7 c\u00f3 th\u1ec3 theo d\u00f5i v\u00e0 quan s\u00e1t m\u1ecdi ho\u1ea1t \u0111\u1ed9ng \u0111ang di\u1ec5n ra \u1edf ng\u00f4i nh\u00e0 c\u1ee7a m\u00ecnh.<\/span><\/p>\n

V\u00e0 th\u1eadt t\u1ed1t khi ng\u01b0\u1eddi d\u00f9ng c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 Long Range \u0111\u1ec3 theo d\u00f5i vi\u1ec7c s\u1eed d\u1ee5ng n\u01b0\u1edbc, \u0111o l\u01b0\u1eddng m\u1ee9c n\u01b0\u1edbc v\u00e0 th\u00f4ng b\u00e1o v\u1ec1 m\u1ee9c n\u01b0\u1edbc kh\u00f4ng b\u00ecnh th\u01b0\u1eddng. V\u1edbi c\u00e1ch th\u1ee9c n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ti\u00eau th\u1ee5, c\u0169ng nh\u01b0 \u0111\u1ea3m b\u1ea3o chi ph\u00ed s\u1eed d\u1ee5ng n\u01b0\u1edbc trong ph\u1ea1m vi cho ph\u00e9p.<\/span><\/p>\n

Trong m\u00f4 h\u00ecnh \u0111\u00f4 th\u1ecb th\u00f4ng minh<\/b><\/h3>\n

H\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng \u0111\u01b0\u1eddng ph\u1ed1 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7<\/span>\u00a0<\/b>\u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n \u0111\u00e8n \u0111\u01b0\u1eddng d\u1ef1a theo th\u1eddi gian trong ng\u00e0y. Ch\u01b0a h\u1ebft, h\u1ec7 th\u1ed1ng \u0111\u00e8n giao giao c\u0169ng c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh t\u00edn hi\u1ec7u t\u1ea1i c\u00e1c giao l\u1ed9 d\u1ef1a tr\u00ean th\u00f4ng tin th\u1eddi gian th\u1ef1c v\u1ec1 t\u00ecnh h\u00ecnh giao th\u00f4ng.<\/span><\/p>\n

\"lora-7\"<\/picture><\/p>\n

H\u01a1n n\u1eefa, c\u1ea3m bi\u1ebfn c\u00f4ng ngh\u1ec7 Long Range c\u00f2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai \u0111\u1ec3 theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed, \u0111o l\u01b0\u1eddng c\u00e1c tham s\u1ed1 nh\u01b0 PM2.5, CO2, v\u00e0 ozone. Th\u1eadm ch\u00ed, ch\u00fang c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m t\u1eeb c\u00e1c ngu\u1ed3n kh\u00e1c nhau nh\u01b0 x\u01b0\u1edfng c\u00f4ng nghi\u1ec7p v\u00e0 giao th\u00f4ng.<\/span><\/p>\n

Trong m\u00f4 h\u00ecnh y t\u1ebf v\u00e0 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe<\/b><\/h3>\n

C\u00e1c thi\u1ebft b\u1ecb \u0111eo th\u00f4ng minh s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 <\/span>LoRa <\/b>\u0111\u1ec3 theo d\u00f5i c\u00e1c tham s\u1ed1 s\u1ee9c kh\u1ecfe nh\u01b0 nh\u1ecbp tim, ho\u1ea1t \u0111\u1ed9ng v\u1eadn \u0111\u1ed9ng, gi\u1ea5c ng\u1ee7 v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 s\u1ee9c kh\u1ecfe kh\u00e1c. D\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd s\u1ee9c kh\u1ecfe t\u1eeb xa \u0111\u1ec3 theo d\u00f5i s\u1ee9c kh\u1ecfe t\u1ed5ng th\u1ec3 c\u1ee7a b\u1ec7nh nh\u00e2n.<\/span><\/p>\n

\"lora-8\"<\/picture><\/p>\n

\u0110\u1ed9c \u0111\u00e1o h\u01a1n, c\u00f4ng ngh\u1ec7 Long Range c\u00f2n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o c\u00e1c thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t s\u1ee9c kh\u1ecfe c\u1ee7a ng\u01b0\u1eddi cao tu\u1ed5i khi h\u1ecd \u1edf xa. T\u1eeb \u0111\u00f3, ng\u01b0\u1eddi th\u00e2n hay b\u00e1c s\u0129 c\u00f3 th\u1ec3 quan s\u00e1t v\u00e0 bi\u1ebft \u0111\u01b0\u1ee3c c\u00e1c c\u1ea3nh b\u00e1o v\u1ec1 t\u00ecnh tr\u1ea1ng kh\u1ea9n c\u1ea5p ho\u1eb7c s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t trong s\u1ee9c kh\u1ecfe c\u1ee7a ng\u01b0\u1eddi b\u1ec7nh.<\/span><\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

V\u1edbi nh\u1eefng th\u00f4ng tin v\u1eeba r\u1ed3i, ch\u00fang ta \u0111\u00e3 bi\u1ebft \u0111\u01b0\u1ee3c <\/span>LoRa <\/b>\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Kh\u00f4ng ch\u1ec9 c\u00f3 trong c\u00e1c doanh nghi\u1ec7p hay c\u00f4ng x\u01b0\u1edfng l\u1edbn, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta. T\u1eeb \u0111\u00e2y, Ho\u00e0ng H\u00e0 Mobile hy v\u1ecdng b\u1ea1n s\u1ebd bi\u1ebft c\u00e1ch t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u1ec3 gia t\u0103ng ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng c\u1ee7a m\u00ecnh nh\u00e9.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n