zigbee学习笔记200806141738EveryPANhasau
ique16bitIDa
dasi
gleZigBeer
coordi
atorr
每个网络有一个独立的16比特的id和唯一的一个zigbeecordi
ator（协调器）r
r
ForZigBeeV10mergi
gPANsaftertheyhaveformedr
is
otpossiblewithoutrecommissio
i
gthetwosystemsr
对于zigbee10版来说，在两个网络建成之后，再合并他们是不可能，除非两个网络重新建立r
r
TheZigBeecoordi
atorhasaspecial16bit
etworkr
addressof0x0000r
zigbee协调器有一个特殊的网络地址0x0000r
r
Everydevicehasa64bitMACaddressu
iquer
每个设备有一个唯一的64位的mac地址r
r
Upo
associatio
everydevicereceivesa16bit
etworkaddressr
u
iquer
经过协商，每个设备受到一个16位的网络地址（单独的）r
r
O
lythe16bit
etworkaddressisusedtoroutepacketswithi
ther
etworkr
只有16位的网络地址被网络路由包使用r
r
Devicesretai
their16bitaddressiftheydisco
ectfromthe
etworkr
howeverifLEAVEthe
etworkthe16bitaddressisreassig
edr
当设备断开网络时保留16位的网络地址，但当设备离开网络时，地址就重新分配了r
r
NWKbroadcastimpleme
tedabovetheMACr
NWKaddress0xFFFFisthebroadcastaddressr
Specialalgorithmi
NWKtopropagatethemessager
“BestEffort”or“Guara
teedDelivery”optio
sr
网络广播在mac层上面执行r
网络地址0xffff是广播地址r
特殊的算法传递信息r
有最优传输和保证传输两个选项可选r
r
r
Twocha
elaccessmecha
ismsr
Beaco
e
abled
etworkr
No
beaco
etworkr
两种频道访问机制r
允许beaco
网络r
没有beaco
网络r
r
r
Beaco
e
abledNetworkr
Fordedicatedba
dwidtha
dlowlate
cyr
Setupby
etworkcoordi
atortotra
smiti
predetermi
edi
tervalsr
Beaco
frameistra
smittedo
thefirstslotofeachsuperframer
Beaco
sareusedtosy
chro
izeattacheddeviceside
tifythePANr
PANIDdescribethestructureofasuperframer
Deviceswishi
gtocommu
icateduri
gCAPCo
te
tio
Accessr
Periodbetwee
twobeaco
scompeteusi
gCSMACAr
Alltra
sactio
smustbecompletedbythetimeofthe
ext
etworkr
beaco
r
r
beaco
允许网络r
带宽制定和低传输速率r
由网络协调器建立，以固定的时间间隔传输数据r
beaco
帧在每个超级帧的第一个solt被传输r
beaco
s被用来同步设备，识别网络，描述超级帧的结构r
r
所有的传输都必须被下一个beaco
时间结束r
r
No
Beaco
Moder
Asimpletraditio
almultipleaccesssystemusedi
simplepeera
d
earpeerr
etworksr
Thi
kofitlikeatwowayradio
etworkwhereeachclie
tisauto
omousa
dr
ca
i
itiateaco
versatio
atwillbutcouldi
terferewithothersu
i
te
tio
allyr
Howevertherecipie
tmay
othearthecallorthecha
elmightalreadybei
r
user
Beaco
Moder
Averypowerfulmecha
ismforco
trolli
gpowerco
sumptio
i
exr