{"id":1562,"date":"2022-09-07T12:01:19","date_gmt":"2022-09-07T05:01:19","guid":{"rendered":"https:\/\/ctd-security.com\/?post_type=product&p=1562"},"modified":"2022-09-07T12:02:58","modified_gmt":"2022-09-07T05:02:58","slug":"he-thong-trich-xuat-du-lieu-thong-qua-mang-wifi-tu-xa","status":"publish","type":"product","link":"https:\/\/ctd-security.com\/en\/product\/he-thong-trich-xuat-du-lieu-thong-qua-mang-wifi-tu-xa\/","title":{"rendered":"H\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa"},"content":{"rendered":"

H\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa<\/span><\/strong><\/h4>\n

B\u0103\u0300ng ca\u0301ch pha\u0301t hi\u00ea\u0323n, \u0111i\u0323nh vi\u0323, \u0111a\u0301nh ch\u0103\u0323n ca\u0301c \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng \u01a1\u0309 khoa\u0309ng ca\u0301ch xa , H\u1ec7 th\u1ed1ng gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3 nguy c\u01a1 bi\u0323 pha\u0301t hi\u00ea\u0323n, t\u0103ng th\u1eddi gian gi\u00e1m s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u01a1 h\u1ed9i \u0111\u1ea1t \u0111\u01b0\u1ee3c cho c\u00e1c m\u1ee5c ti\u00eau ho\u1ea1t \u0111\u1ed9ng. H\u1ec7 th\u1ed1ng cho ph\u00e9p c\u00e1c ho\u1ea1t \u0111\u1ed9ng gi\u00e1m s\u00e1t ph\u1ee9c t\u1ea1p trong ca\u0301c ti\u0300nh hu\u00f4\u0301ng kha\u0301c nhau.<\/span><\/p>\n

Ca\u0301c ch\u01b0\u0301c n\u0103ng cu\u0309a H\u1ec7 th\u1ed1ng<\/strong><\/span><\/p>\n

– Gia\u0301m sa\u0301t Wi-Fi t\u00e2\u0300m xa<\/em><\/strong>: H\u1ec7 th\u1ed1ng \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e1t hi\u1ec7n, \u0111i\u0323nh vi\u0323 v\u00e0 <\/span>\u0111\u00e1nh ch\u1eb7n trong pha\u0323m vi l\u00ean \u0111\u00ea\u0301n h\u00e0ng tr\u0103m m\u00e9t (ph\u1ee5 thu\u1ed9c v\u00e0o \u0111i\u00ea\u0300u ki\u00ea\u0323n m\u00f4i tr\u01b0\u1eddng), l\u01a1\u0301n h\u01a1n \u0111\u00ea\u0301n 10 l\u00e2\u0300n so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p gi\u00e1m s\u00e1t Wi-Fi kh\u00e1c.<\/span><\/p>\n

– Pha\u0301t hi\u00ea\u0323n va\u0300 \u0111i\u0323nh vi:<\/em><\/strong><\/span><\/p>\n

\u00a0 + Ph\u00e1t hi\u1ec7n v\u00e0 theo d\u00f5i c\u00e1c b\u1ed9 ph\u00e1t Wi-Fi \u1edf kho\u1ea3ng c\u00e1ch l\u1edbn<\/span><\/p>\n

\u00a0 + Ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 lo\u1ea1i b\u00f4\u0323 ph\u00e1t Wi-Fi n\u00e0o (v\u00ed d\u1ee5: m\u1ea1ng, thi\u1ebft b\u1ecb)<\/span><\/p>\n

\u00a0 + V\u00f9ng ph\u1ee7 s\u00f3ng \u0111\u1ed3ng th\u1eddi cho c\u00e1c d\u1ea3i t\u1ea7n 2,4 GHz v\u00e0 5 GHz v\u00e0 h\u1ed7 tr\u1ee3 t\u1ea5t c\u1ea3 c\u00e1c k\u00eanh Wi-Fi<\/span><\/p>\n

\u00a0 + Gi\u1ea3i m\u00e3 t\u1ea5t c\u1ea3 D\u1eef li\u1ec7u Meta Layer 2 c\u00e1c b\u00f4\u0323 ph\u00e1t Wi-Fi (M\u1ea1ng v\u00e0 tr\u1ea1m): MAC_ADD (BSSID cho m\u1ea1ng), B\u0103ng t\u1ea7n, S\u1ed1 k\u00eanh, Lo\u1ea1i m\u00e3 h\u00f3a, ESSID (T\u00ean m\u1ea1ng), RSSI, ID nh\u00e0 cung c\u1ea5p, STA li\u00ean k\u1ebft (cho M\u1ea1ng) , Probes (cho c\u00e1c tr\u1ea1m)<\/span><\/p>\n

\u00a0 + T\u00ednh to\u00e1n ch\u00ednh x\u00e1c g\u00f3c h\u01b0\u1edbng \u0111\u1ebfn.<\/span><\/p>\n

\u00a0 + T\u00ednh to\u00e1n ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u1ee7a thi\u1ebft b\u1ecb tr\u00ean m\u1ea1ng \/ m\u1ea1ng d\u1ef1a tr\u00ean t\u00ednh to\u00e1n tam gi\u00e1c c\u1ee7a h\u01b0\u1edbng \u0111\u1ebfn \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1edfi hai h\u1ec7 th\u1ed1ng SpearHead ..<\/span><\/p>\n

– Thu ch\u0103\u0323n:<\/em><\/strong> \u0110a ph\u01b0\u01a1ng th\u01b0\u0301c ng\u01b0\u01a1\u0300i \u0111a\u0301nh ch\u0103\u0323n \u01a1\u0309 gi\u01b0\u0303a (Man-in-the-Middle) phu\u0300 h\u01a1\u0323p v\u01a1\u0301i ca\u0301c ti\u0300nh hu\u00f4\u0301ng hoa\u0323t \u0111\u00f4\u0323ng kha\u0301c nhau \u0111\u00ea\u0309 \u0111a\u0309m ba\u0309o vi\u00ea\u0323c thu ch\u0103\u0323n tha\u0300nh c\u00f4ng cao nh\u00e2\u0301t<\/span><\/p>\n

\u00a0\u00a0 Cu\u0323 th\u00ea\u0309, ca\u0301c kha\u0309 n\u0103ng thu ch\u0103\u0323n trong ca\u0301c ti\u0300nh hu\u00f4\u0301ng<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u1eb7n t\u1ea7m xa trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb, ch\u1eb3ng h\u1ea1n nh\u01b0 thu ch\u1eb7n thi\u1ebft b\u1ecb b\u00ean trong m\u00f4\u0323t t\u00f2a nh\u00e0 t\u1eeb d\u01b0\u01a1\u0301i \u0111\u01b0\u1eddng ph\u1ed1<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u0103\u0323n trong m\u00f4i tr\u01b0\u01a1\u0300ng co\u0301 nhi\u00ea\u0300u loa\u0323i so\u0301ng WiFi g\u00e2y nhi\u00ea\u0303u l\u01a1\u0301n<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u0103\u0323n ma\u0300 kh\u00f4ng co\u0301 t\u00e2\u0300m nhi\u0300n th\u0103\u0309ng \u0111\u00ea\u0301n thi\u00ea\u0301t bi\u0323 \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng mu\u0323c ti\u00eau<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u0103\u0323n ca\u0301c thi\u00ea\u0301t bi\u0323 trong m\u00f4i tr\u01b0\u01a1\u0300ng m\u01a1\u0309 t\u01b0\u0300 ha\u0300ng tr\u0103m me\u0301t<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + L\u00e2y nhi\u00ea\u0303m ma\u0303 \u0111\u00f4\u0323c: H\u1ec7 th\u1ed1ng la\u0300 m\u00f4\u0323t n\u00ea\u0300n ta\u0309ng m\u01a1\u0309 cho phe\u0301p ti\u0301ch h\u01a1\u0323p v\u01a1\u0301i ca\u0301c gia\u0309i pha\u0301p tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u kha\u0301c \u0111\u00ea\u0309 l\u00e2y nhi\u00ea\u0303m ca\u0301c agent va\u0300o thi\u00ea\u0301t bi\u0323 \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng mu\u0323c ti\u00eau.<\/span><\/p>\n

Ca\u0301c l\u01a1\u0323i th\u00ea\u0301 cu\u0309a h\u1ec7 th\u1ed1ng<\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ha\u0323ng mu\u0323c<\/strong><\/span><\/td>\nKha\u0309 n\u0103ng<\/strong><\/span><\/td>\nCa\u0301c l\u01a1\u0323i th\u00ea\u0301<\/strong><\/span><\/td>\n<\/tr>\n
Pha\u0301t hi\u00ea\u0323n<\/span><\/td>\nPha\u0323m vi pha\u0301t hi\u00ea\u0323n<\/span><\/td>\nL\u00ean \u0111\u00ea\u0301n ha\u0300ng tr\u0103m me\u0301t trong \u0111\u00f4 thi\u0323. H\u01a1n 1km trong m\u00f4i tr\u01b0\u01a1\u0300ng m\u01a1\u0309<\/span><\/td>\n<\/tr>\n
<\/td>\nPha\u0301t hi\u00ea\u0323n di\u00ea\u0323n r\u00f4\u0323ng<\/span><\/td>\nPha\u0301t hi\u00ea\u0323n ha\u0300ng nghi\u0300n b\u00f4\u0323 pha\u0301t Wi-Fi \u0111\u00f4\u0300ng th\u01a1\u0300i, du\u0300ng nhi\u00ea\u0300u ca\u0309m bi\u00ea\u0301n. L\u01b0\u1ee3ng l\u1edbn th\u00f4ng tin \u0111\u01b0\u1ee3c thu th\u1eadp v\u00e0 x\u1eed l\u00fd trong th\u1eddi gian th\u1ef1c<\/span><\/td>\n<\/tr>\n
<\/td>\nT\u00f4\u0301c \u0111\u00f4\u0323 que\u0301t<\/span><\/td>\nQu\u00e9t th\u00f4ng minh s\u1eed d\u1ee5ng nhi\u1ec1u c\u1ea3m bi\u1ebfn \u0111\u1ec3 que\u0301t t\u1ea5t c\u1ea3 c\u00e1c k\u00eanh WiFi \u0111\u1ed3ng th\u1eddi ho\u1eb7c trong m\u1ed9t chu k\u1ef3 qu\u00e9t t\u1ed1i \u01b0u<\/span><\/td>\n<\/tr>\n
<\/td>\nVu\u0300ng bao phu\u0309<\/span><\/td>\nV\u00f9ng ph\u1ee7 s\u00f3ng 360 \u00b0 s\u1eed d\u1ee5ng c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u1eb7t \u1edf m\u1ecdi h\u01b0\u1edbng<\/span><\/td>\n<\/tr>\n
\u0110i\u0323nh vi\u0323<\/span><\/td>\nH\u01b0\u01a1\u0301ng cu\u0309a so\u0301ng \u0111\u00ea\u0301n<\/span><\/td>\nPha\u0301t hi\u00ea\u0323n DoA v\u01a1\u0301i \u0111\u00f4\u0323 chi\u0301nh xa\u0301c gi\u01b0\u0300a 3-80<\/sup><\/span><\/td>\n<\/tr>\n
<\/td>\nPha\u0301t hi\u00ea\u0323n vi\u0323 tri\u0301<\/span><\/td>\nPh\u00e1t hi\u1ec7n v\u1ecb tr\u00ed ch\u00ednh x\u00e1c b\u1eb1ng c\u00e1ch tri\u1ec3n khai c\u00e1c m\u1ea1ng chi\u1ebfn thu\u1eadt \u0111\u1eb7c bi\u1ec7t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng SpearHead t\u00edch h\u1ee3p \u0111\u1ea7y \u0111\u1ee7 trong ba l\u00f4 mang xa\u0301ch<\/span><\/td>\n<\/tr>\n
Nh\u00e2\u0323n da\u0323ng \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng<\/span><\/td>\nT\u01b0\u01a1ng quan che\u0301o<\/span><\/td>\nT\u01b0\u01a1ng quan d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c thu th\u1eadp t\u1eeb nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng gi\u00e1m s\u00e1t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 MAC b\u1ecb nghi ng\u1edd<\/span><\/td>\n<\/tr>\n
<\/td>\n\u0110i\u0323a chi\u0309 MAC \u0111\u00ea\u0301n IMSI<\/span><\/td>\nKhai th\u00e1c IMSI cu\u0309a thi\u1ebft b\u1ecb d\u1ef1a tr\u00ean c\u00e1c thu\u0309 thu\u00e2\u0323t giao th\u1ee9c WiFi<\/span><\/td>\n<\/tr>\n
Theo d\u00e2\u0301u \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng ti\u0300nh nghi<\/span><\/td>\nTheo d\u00e2\u0301u t\u00e2\u0300m xa<\/span><\/td>\nTheo d\u00e2\u0301u t\u1ea7m xa \u1edf nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau trong th\u1eddi gian d\u00e0i h\u01a1n va\u0300 gia\u0309m thi\u00ea\u0309u ru\u0309i do bi\u0323 pha\u0301t hi\u00ea\u0323n<\/span><\/td>\n<\/tr>\n
<\/td>\nTheo d\u00e2\u0301u b\u0103\u0300ng tr\u01b0\u0323c quan<\/span><\/td>\nNh\u1eadn d\u1ea1ng \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng nghi ng\u1edd v\u00e0 theo d\u00e2\u0301u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u00edch h\u1ee3p v\u01a1\u0301i camera CCTV quan s\u00e1t t\u1ea7m xa. \u0110i\u00ea\u0300u khi\u00ea\u0309n camera th\u1eddi gian th\u1ef1c PTZ d\u1ef1a tr\u00ean WiFi DoA v\u00e0 ph\u00e1t hi\u1ec7n v\u1ecb tr\u00ed.<\/span><\/td>\n<\/tr>\n
Thu ch\u0103\u0323n<\/span><\/td>\n\u0110a\u0301nh ch\u0103\u0323n \u01a1\u0309 gi\u01b0\u0303a<\/span><\/td>\n\u0110a ph\u01b0\u01a1ng th\u01b0\u0301c ng\u01b0\u01a1\u0300i \u0111a\u0301nh ch\u0103\u0323n \u01a1\u0309 gi\u01b0\u0303a (Man-in-the-Middle) phu\u0300 h\u01a1\u0323p v\u01a1\u0301i ca\u0301c ti\u0300nh hu\u00f4\u0301ng hoa\u0323t \u0111\u00f4\u0323ng kha\u0301c nhau \u0111\u00ea\u0309 \u0111a\u0309m ba\u0309o vi\u00ea\u0323c thu ch\u0103\u0323n tha\u0300nh c\u00f4ng cao nh\u00e2\u0301t<\/span><\/p>\n

Cu\u0323 th\u00ea\u0309, ca\u0301c kha\u0309 n\u0103ng thu ch\u0103\u0323n trong ca\u0301c ti\u0300nh hu\u00f4\u0301ng tha\u0301ch th\u01b0\u0301c nh\u01b0 d\u01b0\u01a1\u0301i \u0111\u00e2y:<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u1eb7n t\u1ea7m xa trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb, ch\u1eb3ng h\u1ea1n nh\u01b0 thu ch\u1eb7n thi\u1ebft b\u1ecb b\u00ean trong m\u00f4\u0323t t\u00f2a nh\u00e0 t\u1eeb d\u01b0\u01a1\u0301i \u0111\u01b0\u1eddng ph\u1ed1<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u0103\u0323n trong m\u00f4i tr\u01b0\u01a1\u0300ng co\u0301 nhi\u00ea\u0300u loa\u0323i so\u0301ng WiFi g\u00e2y nhi\u00ea\u0303u l\u01a1\u0301n<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u0103\u0323n ma\u0300 kh\u00f4ng co\u0301 t\u00e2\u0300m nhi\u0300n th\u0103\u0309ng \u0111\u00ea\u0301n thi\u00ea\u0301t bi\u0323 \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng mu\u0323c ti\u00eau<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0 + Thu ch\u0103\u0323n ca\u0301c thi\u00ea\u0301t bi\u0323 trong m\u00f4i tr\u01b0\u01a1\u0300ng m\u01a1\u0309 t\u01b0\u0300 ha\u0300ng tr\u0103m me\u0301t<\/span><\/td>\n<\/tr>\n

<\/td>\nC\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng k\u00eanh \u0111\u01a1n \u0111\u1ed3ng th\u1eddi<\/span><\/td>\nKh\u1ea3 n\u0103ng ch\u1eb7n nhi\u1ec1u m\u1ee5c ti\u00eau, truy\u1ec1n tr\u00ean m\u1ed9t k\u00eanh WiFi. V\u00ed d\u1ee5: m\u1ed9t s\u1ed1 nghi ph\u1ea1m li\u00ean quan \u0111\u1ebfn c\u00f9ng m\u1ed9t m\u1ea1ng WiFi<\/span><\/td>\n<\/tr>\n
<\/td>\nC\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111a k\u00eanh \u0111\u1ed3ng th\u1eddi<\/span><\/td>\nKh\u1ea3 n\u0103ng ch\u1eb7n \u0111\u1ed3ng th\u1eddi nhi\u1ec1u m\u1ee5c ti\u00eau tr\u00ean c\u00e1c k\u00eanh kh\u00e1c nhau, s\u1eed d\u1ee5ng nhi\u1ec1u c\u1ea3m bi\u1ebfn v\u00e0 nhi\u1ec1u ph\u01b0\u01a1ng th\u1ee9c MiTM<\/span><\/td>\n<\/tr>\n
<\/td>\nK\u00ea\u0301t h\u01a1\u0323p v\u01a1\u0301i h\u00ea\u0323 th\u00f4\u0301ng gia\u0309i ma\u0303 m\u00e2\u0323t kh\u00e2\u0309u<\/span><\/td>\nKha\u0309 n\u0103ng ti\u0301ch h\u01a1\u0323p v\u01a1\u0301i h\u00ea\u0323 th\u00f4\u0301ng gia\u0309i ma\u0303 m\u00e2\u0323t kh\u00e2\u0309u \u0111\u00ea\u0309 gia\u0309i ma\u0303 m\u00e2\u0323t kh\u00e2\u0309u cu\u0309a ma\u0323ng Wi-Fi<\/span><\/td>\n<\/tr>\n
Tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u<\/span><\/td>\nNhi\u00ea\u0300u c\u00f4ng cu\u0323 tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u<\/span><\/td>\nKha\u0309 n\u0103ng k\u00ea\u0301t h\u01a1\u0323p v\u01a1\u0301i nhi\u00ea\u0300u h\u00ea\u0323 th\u00f4\u0301ng tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u (Trojan Horse), m\u1ed7i h\u1ec7 th\u1ed1ng chuy\u00ean v\u1ec1 c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3, nh\u1eb1m \u0111\u1ea3m b\u1ea3o ph\u1ea1m vi l\u00e2y nhi\u1ec5m r\u1ed9ng cho ca\u0301c thi\u00ea\u0301t bi\u0323 cu\u0309a \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng<\/span><\/td>\n<\/tr>\n
<\/td>\nT\u00e2\u0301n c\u00f4ng nhi\u00ea\u0300u h\u00ea\u0323 \u0111i\u00ea\u0300u ha\u0300nh \u0111\u00f4\u0300ng th\u01a1\u0300i<\/span><\/td>\nKha\u0309 n\u0103ng l\u00e2y nhi\u00ea\u0303m va\u0300 tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u \u0111\u00f4\u0301i v\u01a1\u0301i nhi\u00ea\u0300u thi\u00ea\u0301t bi\u0323 \/ h\u00ea\u0323 \u0111i\u00ea\u0300u ha\u0300nh \u0111\u00f4\u0300ng th\u01a1\u0300i, du\u0300ng nhi\u00ea\u0300u c\u00f4ng cu\u0323 tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u kha\u0301c nhau.<\/span><\/td>\n<\/tr>\n
Ph\u00e2n ti\u0301ch<\/span><\/td>\nPh\u00e2n ti\u0301ch WiFi<\/span><\/td>\nKh\u1ea3 n\u0103ng x\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u WiFi pha\u0301t hi\u00ea\u0323n \u0111\u01b0\u01a1\u0323c, d\u1eef li\u1ec7u v\u1ecb tr\u00ed v\u00e0 d\u1eef li\u1ec7u meta WiFi \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 theo d\u00f5i c\u00e1c nghi ph\u1ea1m<\/span><\/td>\n<\/tr>\n
<\/td>\nTi\u0301ch h\u01a1\u0323p v\u01a1\u0301i ca\u0301c h\u00ea\u0323 th\u00f4\u0301ng ph\u00e2n ti\u0301ch kha\u0301c<\/span><\/td>\nKh\u1ea3 n\u0103ng t\u00edch h\u1ee3p v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n t\u00edch cao c\u00e2\u0301p h\u01a1n v\u00e0 cung c\u1ea5p t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u c\u00f3 li\u00ean quan trong th\u1eddi gian th\u1ef1c \u0111\u00ea\u0309 ph\u00e2n ti\u0301ch offline.<\/span><\/td>\n<\/tr>\n
Tri\u00ea\u0309n khai tr\u00ean xe \u00f4 t\u00f4<\/span><\/td>\nTh\u01a1\u0300i gian hoa\u0323t \u0111\u00f4\u0323ng l\u00e2u<\/span><\/td>\nKha\u0309 n\u0103ng hoa\u0323t \u0111\u00f4\u0323ng \u0111\u00f4\u0323c l\u00e2\u0323p ha\u0300ng gi\u01a1\u0300 (th\u01a1\u0300i gian hoa\u0323t \u0111\u00f4\u0323ng phu\u0323 thu\u00f4\u0323c va\u0300o thi\u00ea\u0301t k\u00ea\u0301 va\u0300 pha\u0323m vi\u0323 c\u00f4ng su\u00e2\u0301t ma\u0323ng)<\/span><\/td>\n<\/tr>\n
<\/td>\nHoa\u0323t \u0111\u00f4\u0323ng bi\u0301 m\u00e2\u0323t<\/span><\/td>\nT\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ng\u1ee5y trang trong xe \u0111\u1ec3 ng\u0103n ch\u1eb7n ph\u00e1t hi\u1ec7n v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro<\/span><\/td>\n<\/tr>\n
C\u00f4ng ngh\u00ea\u0323 ti\u00ean ti\u00ea\u0301n<\/span><\/td>\nC\u00f4ng ngh\u00ea\u0323 Radio va\u0300 DSP<\/span><\/td>\nC\u00e1c c\u1ea3m bi\u1ebfn WiFi th\u1ebf h\u1ec7 th\u1ee9 5, ba\u0309n quy\u1ec1n s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt \u0111\u1ecbnh d\u1ea1ng ch\u00f9m d\u1ef1a tr\u00ean m\u1ed9t lo\u1ea1t c\u00e1c tha\u0300nh t\u00f4\u0301 WiFi \u0111\u1ec3 t\u0103ng ph\u1ea1m vi, t\u00ednh to\u00e1n DoA v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 t\u00edn hi\u1ec7u \/nhi\u1ec5u (S\/N)<\/span><\/td>\n<\/tr>\n
<\/td>\nN\u00ea\u0300n ta\u0309ng m\u01a1\u0309<\/span><\/td>\nN\u1ec1n t\u1ea3ng m\u1edf., C\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi b\u1ea5t k\u1ef3 h\u1ec7 th\u1ed1ng ph\u00e2n t\u00edch v\u00e0 tri\u0301ch xu\u00e2\u0301t d\u01b0\u0303 li\u00ea\u0323u na\u0300o.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

H\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa B\u0103\u0300ng ca\u0301ch pha\u0301t hi\u00ea\u0323n, \u0111i\u0323nh vi\u0323, \u0111a\u0301nh ch\u0103\u0323n ca\u0301c \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng \u01a1\u0309 khoa\u0309ng ca\u0301ch xa , H\u1ec7 th\u1ed1ng gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3 nguy c\u01a1 bi\u0323 pha\u0301t hi\u00ea\u0323n, t\u0103ng th\u1eddi gian gi\u00e1m s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u01a1 h\u1ed9i \u0111\u1ea1t \u0111\u01b0\u1ee3c cho c\u00e1c<\/p>","protected":false},"featured_media":1563,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[15,76],"product_tag":[],"class_list":["post-1562","product","type-product","status-publish","has-post-thumbnail","product_cat-tat-ca-san-pham","product_cat-thiet-bi-an-ninh-cnc","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nH\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa - CTDTECH CO., LTD<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ctd-security.com\/en\/product\/he-thong-trich-xuat-du-lieu-thong-qua-mang-wifi-tu-xa\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa - CTDTECH CO., LTD\" \/>\n<meta property=\"og:description\" content=\"H\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa B\u0103\u0300ng ca\u0301ch pha\u0301t hi\u00ea\u0323n, \u0111i\u0323nh vi\u0323, \u0111a\u0301nh ch\u0103\u0323n ca\u0301c \u0111\u00f4\u0301i t\u01b0\u01a1\u0323ng \u01a1\u0309 khoa\u0309ng ca\u0301ch xa , H\u1ec7 th\u1ed1ng gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3 nguy c\u01a1 bi\u0323 pha\u0301t hi\u00ea\u0323n, t\u0103ng th\u1eddi gian gi\u00e1m s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u01a1 h\u1ed9i \u0111\u1ea1t \u0111\u01b0\u1ee3c cho c\u00e1c\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ctd-security.com\/en\/product\/he-thong-trich-xuat-du-lieu-thong-qua-mang-wifi-tu-xa\/\" \/>\n<meta property=\"og:site_name\" content=\"CTDTECH CO., LTD\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-07T05:02:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ctd-security.com\/wp-content\/uploads\/2022\/09\/4-4.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"419\" \/>\n\t<meta property=\"og:image:height\" content=\"508\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ctd-security.com\\\/en\\\/product\\\/he-thong-trich-xuat-du-lieu-thong-qua-mang-wifi-tu-xa\\\/\",\"url\":\"https:\\\/\\\/ctd-security.com\\\/en\\\/product\\\/he-thong-trich-xuat-du-lieu-thong-qua-mang-wifi-tu-xa\\\/\",\"name\":\"H\u1ec7 th\u1ed1ng tr\u00edch xu\u1ea5t d\u1eef li\u1ec7u th\u00f4ng qua m\u1ea1ng WiFi t\u1eeb xa - 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