● LIKELO
○ litsamaiso tsa IEEEE 802.15.4
○ZigBee® litsamaiso
○Tekolo le taolo ea indasteri
○Moaho le meaho ea moaho
○Ho bala Methara ka Motlakase
○Netweke ya sensor ya waelese ya matla a tlase
○ Mabokose a li-set-top le li-remote control
○Lisebelisoa tsa elektroniki tsa bareki
● LITŠOANTŠISO TSA BOHLOKOA
○State-of-the-art selectivity/co-existence
○Hano ea kanale e haufi: 49 dB
○Hano ea kanale e 'ngoe: 54 dB
○Tekanyetso e ntle haholo ea likhokahano (103dB)
○400 m Line-of-pono range
○Mocheso o atolositsoeng oa mocheso (–40 ho ea ho +125°C)
○ Mefuta e mengata ea phepelo: 1.8 V - 3.8 V
○IEEE 802.15.4 MAC hardware e batsi
○tšehetso ea ho theola microcontroller
○Mojule oa tšireletso oa AES-128
○ CC2420 mokhoa o lumellanang oa sebopeho
● Matla a Tlase
○RX (foreimi e amohelang, -50 dBm) 18.5 mA
○TX 33.6 mA @ +5 dBm
○TX 25.8 mA @ 0 dBm
○<1µA ha matla a theoha
●Kakaretso
○Oache e hlahisoang bakeng sa sisteme e le 'ngoe ea kristale
○Sephutheloana sa RoHS se lumellana le 5 × 5 mm QFN28 (RHD).
● Radio
○IEEE 802.15.4 e lumellanang le DSSS basebandmodem e nang le sekhahla sa data sa 250 kbps
○ Kutlo e ntle haholo ea moamoheli (–98 dBm)
○Matla a ka khonehang a ho fihla ho +5 dBm
○RF frequency range 2394-2507 MHz
○E loketse lits'ebetso tse shebaneng le ho latela melao ea maqhubu a seea-le-moea lefatšeng ka bophara: ETSI EN 300 328 le EN 300 440 sehlopha sa 2 (Europe),
○FCC CFR47 Karolo ea 15 (US) le ARIB STD-T66 (Japan)
● Tšehetso ea Microcontroller
○Tshehetso ea Digital RSSI/LQI
○Ho etsa tlhahlobo e hlakileng ea mocha bakeng sa CSMA/CA
○Automatic CRC
○768 bytes RAM bakeng sa buffer e feto-fetohang le ts'ebetso ea ts'ireletso
○Tsireletso ea MAC e tšehetsoeng ka botlalo
○4 terata SPI
○6 Lithakhisa tsa IO tse ka lokisoang
○ sitisa jenereithara
○Enjine ea ho sefa le ho sebetsa
○ Jenereithara ea linomoro tse sa reroang
● Lisebelisoa tsa Ntlafatso
○Moetso oa litšupiso
○IEEE 802.15.4 MAC software
○ZigBee® software ea stack
○Setsi sa ntlafatso se nang le lisebelisoa tse felletseng
○Pakete ea ho sniffer ho hardware
ZigBee® ke lets'oao le ngolisitsoeng la ZigBee Alliance, Inc.
CC2520 ke TI ea moloko oa bobeli oa ZigBee®/ IEEE 802.15.4 RF transceiver bakeng sa sehlopha sa 2.4 GHz se sa ngolisoang ke ISM.Chip ena e nolofalletsa likopo tsa boemo ba indasteri ka ho fana ka khetho ea boemo ba morao-rao / ho ba teng, tekanyetso e ntle ea lihokelo, ts'ebetso ho fihlela ho 125 ° C le ts'ebetso ea motlakase o tlase.
Ntle le moo, CC2520 e fana ka tšehetso e pharalletseng ea lisebelisoa bakeng sa ho sebetsana le foreimi, ho boloka data, phetisetso e phatlohileng, encryption ea data, netefatso ea data, tlhahlobo e hlakileng ea mocha, sesupo sa boleng ba khokahano le tlhaiso-leseling ea nako.Likarolo tsena li fokotsa mojaro ho molaoli oa moamoheli.
Sistimi e tloaelehileng, CC2520 e tla sebelisoa hammoho le microcontroller le likarolo tse ling tse 'maloa tse sa sebetseng.
1. Basebetsi lefapheng la hau la R & D ke bo-mang?Litšoaneleho tsa hau ke life?
-R & D Motsamaisi: etsa moralo oa nako e telele oa R & D oa k'hamphani le ho utloisisa tataiso ea lipatlisiso le nts'etsopele;Tataisa le ho hlokomela lefapha la r&d ho kenya tšebetsong leano la r&d la k'hamphani le moralo oa selemo le selemo oa R&D;Laola tsoelopele ea nts'etsopele ea lihlahisoa le ho lokisa moralo;Theha sehlopha se hloahloa sa lipatlisiso le nts'etsopele ea sehlahisoa, tlhahlobo le koetliso e amanang le basebetsi ba botekgeniki.
Mookameli oa R & D: etsa moralo oa sehlahisoa se secha sa R & D 'me u bontše ho khoneha ha moralo;Laola le ho laola tsoelopele le boleng ba mosebetsi oa r&d;Batlisisa ntshetsopele ya sehlahiswa se secha mme o sisinye ditharollo tse sebetsang ho ya ka ditlhoko tsa bareki mafapheng a fapaneng
Basebetsi ba R&d: bokella le ho hlophisa lintlha tsa bohlokoa;Lenaneo la khomphutha;Ho etsa liteko, liteko le ho sekaseka;Lokisetsa lisebelisoa le lisebelisoa bakeng sa liteko, liteko le litlhahlobo;Rekota lintlha tsa tekanyo, etsa lipalo le ho lokisa lichate;Etsa lipatlisiso tsa lipalo-palo
2. Maikutlo a hau a lipatlisiso le nts'etsopele ea sehlahisoa ke afe?
- Maikutlo a sehlahisoa le mohopolo oa sehlahisoa sa khetho le tlhahlobo ea tlhaloso ea sehlahisoa le moralo oa moralo oa projeke le tlhahlobo ea ntlafatso ea sehlahisoa le ho qala ho netefatsa 'marakeng