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Bluetooth texnologiyasi
Tayyorladi :
Abduqahhor Otajonov
Bluetoothning yaratilish tarixi
 «Bluetoothning otasi» Norvegiyalik olim Yap Xarsten (Jaap Haarsten) bo‘lib, Ericsson
kompaniyasida ishlagan davrida, ya’ni 1994-yildayoq, yangi texnologiyalarni ilgari
sura boshlagandi. Yap Xarsten Bluetooth’ni rivojlantirishning muhim yo‘nalishlari
sifatida eng yaqin qurilmagacha masofani aniqlashdagi funksiyasini aniqlagan. Yap-
ning fikriga ko‘ra, texnologiyalar zamonaviy olamda kommunikatsiya va joylashgan
joyni bilishning mujassam ilg‘or funksiyalarini yaratish uchun ajralmas shart bo‘lib
hisoblanadi. Masalan, noutbugingizdagi nimanidir bosib chiqarishni xohlasangiz,
qidiruv asosida bir necha qurilmani topishingiz mumkin, biroq bundan foyda kam
bo‘ladi. Agar foydalanuvchi, masalan, 5 metr masofada printer mavjudligidan
boxabar bo‘lsa, bu juda yaxshi natijadir.
Yap Xarsten — Bluetooth asoschisi
Nima uchun Bluetooth texnologiyasi
bunday g'alati nomga ega?
 Ushbu texnologiya Daniya Viking Podshohi Xarald I
Sinezubogo sharafiga Bluetooth deb ataladi (uning qorong'i
old tishining taxallusiga ega bo'lgan). Ushbu shoh o'ninchi
asrda Daniya va Norvegiyaning ba'zi qismlarida hukmronlik
qilgan va urushdagi qabilalarni bir davlatga aylantirgan.
Bu nom Bluetooth-ning aloqa protokollari bilan bir xil
ekanligini va ularni bir universal standartga moslashini
anglatadi.
Bluetoothga ega birinchi mobile telefon
Sony Ericsson T36
Bluetooth qanday boshlandi ?
 Bluetooth texnologiyasining birinchi kontseptsiyasi 1994 yilda Shvetsiyaning Lund
shahrida joylashgan bo'lib, unda fuqarolar buyuk insonning xotirasiga yangi tosh
(bir marosim) qurishga qaror qildilar. Ushbu yodgorlikdagi yozuv (aslida - qadimgi
norveg tilida) quyidagicha: "Ericsson Mobile Communications AB kompaniyasi ushbu
toshni mobil aloqa uchun yangi simsiz texnologiyalarga nom bergan Harald
Bluetooth sharafiga o'rnatdi."
 Keyinchalik, 1998 yil boshida, besh yirik kompaniya - Ericsson, Nokia, IBM, Intel va
Toshiba - yangi Bluetooth simsiz texnologiyasini yaratish bo'yicha ishlarni boshlash
uchun birlashdilar. Shu yilning 20 may kuni telekommunikatsiya bozorida yangi
texnologiyalarni ilgari surish uchun maxsus ishchi guruhi (SIG) tuzildi. Bluetooth
qurilmalarini ishlab chiqishni rejalashtirgan har qanday kompaniya ushbu guruhga
bepul qo'shilishlari mumkin. Hozirgi kunda SIGda uch mingdan ziyod kompaniyalar
mavjud bo'lib, ular orasida ushbu standartni ishlab chiqishga sabab bo'lgan eski
shaxslar mavjud bo'lib, ular yangi - masalan, Lucent, Microsoft, Motorola singari
devlar va boshqalar.
Bluetooth texnologiyasi diqqatga
sazovor
 Bluetooth, yuqorida aytib o'tilganidek, simsiz ma'lumotlarni uzatishning
zamonaviy texnologiyasi bo'lib, deyarli har qanday qurilmaga ulanish imkonini
beradi. Ulanadigan barcha narsalarni ulashingiz mumkin, ya'ni integratsiya
Bluetooth mikrochipiga ega. Texnologiya standartlangan, shuning uchun
raqobatlashadigan kompaniyalardan qurilmalarning mos kelmasligi muammosi
bo'lmasligi kerak.
Bluetooth - yuqori chastotali (2.4 - 2.48
gigagertsli) qabul qiluvchi transceiver bo'lgan
kichik chip
Bluetooth ish printsipi
 Bluetooth texnologiyasi ikkita aloqa turini o'z ichiga oladi: sinxron - SCO
(sinxron aloqa yo'nalishi bo'yicha) va asenkron - ACL (mos kelmaydigan
aloqa). Birinchi turdagi ShHT, simmetrik nuqtadan nuqtaga ulanishni o'rnatish
uchun mo'ljallangan va birinchi navbatda ovozli xabarlarni uzatish uchun
xizmat qiladi. ShHT bod narxi 64 Kit / s. Ikkinchidan, ACL, paketli ma'lumotlar
uchun. Nosimmetrik va assimetrik nuqta-to-ko'p nuqtali ulanishlarni qo'llab-
quvvatlaydi. ACL bilan paketli ma'lumotlarni uzatish tezligi taxminan 721 Kbit
/ s ni tashkil qiladi. Ma'lumot paketlari aniq formatga ega. Blokning boshida
72 bitlik kirish kodi mavjud. Ayniqsa, qurilmalarni sinxronlashtirish uchun
foydalanish mumkin. Undan keyin paketning summasini va uning parametrlari
to'g'risida ma'lumotni o'z ichiga oluvchi 54-bitlik paket sarlavhasi
(masalan, ma'lumotlar blokining qayta uzatilishi to'g'risida). Yuborilgan
ma'lumotni bevosita o'z ichiga olgan maydon paketni yopadi. Ushbu
maydonning hajmi 0 dan 2745 bitgacha farq qiladi.
 Bluetooth tizimlarini qurishning asosiy printsipi -
chastotani kesish (FHSS - Frequency Hop Spread Spectrum)
bilan spektr kengayish usuli. Bluetooth radiostansiyasining
barcha ajratilgan chastotalar diapazoni 2,402-2,480
GGtsni tashkil etadi va N chastotali kanallarga
bo'linadi. Har bir kanalning tasmasi 1 MGts, kanal oralig'i
140-175 kHz. Chastotani kalitlash paketi ma'lumotlarini
kodlash uchun ishlatiladi.
Bugungi kunda Bluetooth texnologiyasi
Smart home va Bluetooth
Kundalik Bluetooth texnologiyalari
Bluetooth quloqchinlar Bluetooth soatlar
Bluetooth Ruchka
Kelajakda Bluetooth
 Texnologiya bashoratchilarining fikricha Bluetooth yaxshi kelajakga ega
 Chunki eng birinchi yaratilgan simsiz aloqa va u hamon ishlatilmoqda.
 Bluetoothning eng so’nggi naqllari o’zining yuqori tezligi bilan ko’pchilik
omma e’tiborini yana qayta jalb etmoqda
 Ko’pchilik kompaniyalar bluetoothdan foydalanishadi. Chunki, u havfsiz.

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Bluetooth texnologiyasi

  • 2. Bluetoothning yaratilish tarixi  «Bluetoothning otasi» Norvegiyalik olim Yap Xarsten (Jaap Haarsten) bo‘lib, Ericsson kompaniyasida ishlagan davrida, ya’ni 1994-yildayoq, yangi texnologiyalarni ilgari sura boshlagandi. Yap Xarsten Bluetooth’ni rivojlantirishning muhim yo‘nalishlari sifatida eng yaqin qurilmagacha masofani aniqlashdagi funksiyasini aniqlagan. Yap- ning fikriga ko‘ra, texnologiyalar zamonaviy olamda kommunikatsiya va joylashgan joyni bilishning mujassam ilg‘or funksiyalarini yaratish uchun ajralmas shart bo‘lib hisoblanadi. Masalan, noutbugingizdagi nimanidir bosib chiqarishni xohlasangiz, qidiruv asosida bir necha qurilmani topishingiz mumkin, biroq bundan foyda kam bo‘ladi. Agar foydalanuvchi, masalan, 5 metr masofada printer mavjudligidan boxabar bo‘lsa, bu juda yaxshi natijadir.
  • 3. Yap Xarsten — Bluetooth asoschisi
  • 4. Nima uchun Bluetooth texnologiyasi bunday g'alati nomga ega?  Ushbu texnologiya Daniya Viking Podshohi Xarald I Sinezubogo sharafiga Bluetooth deb ataladi (uning qorong'i old tishining taxallusiga ega bo'lgan). Ushbu shoh o'ninchi asrda Daniya va Norvegiyaning ba'zi qismlarida hukmronlik qilgan va urushdagi qabilalarni bir davlatga aylantirgan. Bu nom Bluetooth-ning aloqa protokollari bilan bir xil ekanligini va ularni bir universal standartga moslashini anglatadi.
  • 5. Bluetoothga ega birinchi mobile telefon Sony Ericsson T36
  • 6. Bluetooth qanday boshlandi ?  Bluetooth texnologiyasining birinchi kontseptsiyasi 1994 yilda Shvetsiyaning Lund shahrida joylashgan bo'lib, unda fuqarolar buyuk insonning xotirasiga yangi tosh (bir marosim) qurishga qaror qildilar. Ushbu yodgorlikdagi yozuv (aslida - qadimgi norveg tilida) quyidagicha: "Ericsson Mobile Communications AB kompaniyasi ushbu toshni mobil aloqa uchun yangi simsiz texnologiyalarga nom bergan Harald Bluetooth sharafiga o'rnatdi."  Keyinchalik, 1998 yil boshida, besh yirik kompaniya - Ericsson, Nokia, IBM, Intel va Toshiba - yangi Bluetooth simsiz texnologiyasini yaratish bo'yicha ishlarni boshlash uchun birlashdilar. Shu yilning 20 may kuni telekommunikatsiya bozorida yangi texnologiyalarni ilgari surish uchun maxsus ishchi guruhi (SIG) tuzildi. Bluetooth qurilmalarini ishlab chiqishni rejalashtirgan har qanday kompaniya ushbu guruhga bepul qo'shilishlari mumkin. Hozirgi kunda SIGda uch mingdan ziyod kompaniyalar mavjud bo'lib, ular orasida ushbu standartni ishlab chiqishga sabab bo'lgan eski shaxslar mavjud bo'lib, ular yangi - masalan, Lucent, Microsoft, Motorola singari devlar va boshqalar.
  • 7. Bluetooth texnologiyasi diqqatga sazovor  Bluetooth, yuqorida aytib o'tilganidek, simsiz ma'lumotlarni uzatishning zamonaviy texnologiyasi bo'lib, deyarli har qanday qurilmaga ulanish imkonini beradi. Ulanadigan barcha narsalarni ulashingiz mumkin, ya'ni integratsiya Bluetooth mikrochipiga ega. Texnologiya standartlangan, shuning uchun raqobatlashadigan kompaniyalardan qurilmalarning mos kelmasligi muammosi bo'lmasligi kerak.
  • 8. Bluetooth - yuqori chastotali (2.4 - 2.48 gigagertsli) qabul qiluvchi transceiver bo'lgan kichik chip
  • 9. Bluetooth ish printsipi  Bluetooth texnologiyasi ikkita aloqa turini o'z ichiga oladi: sinxron - SCO (sinxron aloqa yo'nalishi bo'yicha) va asenkron - ACL (mos kelmaydigan aloqa). Birinchi turdagi ShHT, simmetrik nuqtadan nuqtaga ulanishni o'rnatish uchun mo'ljallangan va birinchi navbatda ovozli xabarlarni uzatish uchun xizmat qiladi. ShHT bod narxi 64 Kit / s. Ikkinchidan, ACL, paketli ma'lumotlar uchun. Nosimmetrik va assimetrik nuqta-to-ko'p nuqtali ulanishlarni qo'llab- quvvatlaydi. ACL bilan paketli ma'lumotlarni uzatish tezligi taxminan 721 Kbit / s ni tashkil qiladi. Ma'lumot paketlari aniq formatga ega. Blokning boshida 72 bitlik kirish kodi mavjud. Ayniqsa, qurilmalarni sinxronlashtirish uchun foydalanish mumkin. Undan keyin paketning summasini va uning parametrlari to'g'risida ma'lumotni o'z ichiga oluvchi 54-bitlik paket sarlavhasi (masalan, ma'lumotlar blokining qayta uzatilishi to'g'risida). Yuborilgan ma'lumotni bevosita o'z ichiga olgan maydon paketni yopadi. Ushbu maydonning hajmi 0 dan 2745 bitgacha farq qiladi.
  • 10.  Bluetooth tizimlarini qurishning asosiy printsipi - chastotani kesish (FHSS - Frequency Hop Spread Spectrum) bilan spektr kengayish usuli. Bluetooth radiostansiyasining barcha ajratilgan chastotalar diapazoni 2,402-2,480 GGtsni tashkil etadi va N chastotali kanallarga bo'linadi. Har bir kanalning tasmasi 1 MGts, kanal oralig'i 140-175 kHz. Chastotani kalitlash paketi ma'lumotlarini kodlash uchun ishlatiladi.
  • 11. Bugungi kunda Bluetooth texnologiyasi
  • 12. Smart home va Bluetooth
  • 13. Kundalik Bluetooth texnologiyalari Bluetooth quloqchinlar Bluetooth soatlar
  • 15. Kelajakda Bluetooth  Texnologiya bashoratchilarining fikricha Bluetooth yaxshi kelajakga ega  Chunki eng birinchi yaratilgan simsiz aloqa va u hamon ishlatilmoqda.  Bluetoothning eng so’nggi naqllari o’zining yuqori tezligi bilan ko’pchilik omma e’tiborini yana qayta jalb etmoqda  Ko’pchilik kompaniyalar bluetoothdan foydalanishadi. Chunki, u havfsiz.