dco
trolmodule’sfu
ctio
sare
odedeviceco
troltaskscheduli
ga
de
ergycomputi
ga
dsoo
Commu
icatio
moduleisusedtose
ddatabetwee
odesa
dfreque
cychose
a
dsoo
Fig4U
iversalstructureofthews
odesI
thedatatra
sferu
itthemoduleisembeddedtomatchtheMAClayera
dtheNETlayeroftheprotocolWechooseCC2430astheprotocolchipswhichi
tegratedtheCPURFtra
sceiver
etprotocola
dtheRAMtogetherCC2430usesa
8bitMCU8051a
dhas128KBprogrammableflashmemorya
d8KBRAMItalsoi
cludesADco
vertersomeTimersAES128CoprocessorWatchdogTimer32KcrystalSleepmodeTimerPowero
ResetBrow
outDetectio
a
d21IOsBasedo
thechipsma
ymodulesfortheprotocolareprovidedA
dthetra
sferu
itcouldbeeasilydesig
edbasedo
themodulesAsa
exampleofase
sore
ddevicei
tegratedtemperaturehumiditya
dlightthedesig
isshow
i
Fig5
4
f兰州交通大学毕业设计英文文献
Fig5Thehardwaredesig
ofase
sor
odeTheSHT11isasi
glechiprelativehumiditya
dtemperaturemultise
sormodulecomprisi
gacalibrateddigitaloutputItca
testthesoiltemperaturea
dhumidityTheDS18B20isadigitaltemperaturese
sorwhichhas3pi
sa
ddatapi
ca
li
kMSP430directlyItca
detecttemperaturei
gree
houseTheTCS320isadigitallightse
sorSHT11DS18B20a
dTCS320arebothdigitalse
sorswithsmallsizea
dlowpowerco
sumptio
Otherse
sor
odesca
beobtai
edbycha
gi
gthese
sorsThese
sor
odesarepoweredfromo
boardbatteriesa
dthecoordi
atoralsoallowstobepoweredfroma
exter
alpowersupplydetermi
edbyajumperCNodeSoftwareDesig
Theapplicatio
systemco
sistsofacoordi
atora
dseverale
ddevicesThege
eralstructureofthecodei
eachisthesamewitha
i
itializatio
followedbyamai
loopThesoftwareflowofcoordi
atorupo
thecoordi
atorbei
gstartedthefirstactio
oftheapplicatio
isthei
itializatio
ofthehardwareliquidcrystalstacka
dapplicatio
variablesa
dope
i
gthei
terruptThe
a
etworkwillbeformattedIfthis
ethasbee
formattedsuccessfullysome
etworki
formatio
suchasphysicaladdress
etIDcha
el
umberwillbeshow
o
theLCDThe
programwillstepi
toapplicatio
layera
dmo
itorsig
alIfthereise
ddeviceorrouterwa
ttojoi
i
this
etLCDwillshow
thisi
formatio
a
dshowthephysicaladdressofapplyi
g
odea
dthecoordi
atorwillallocatea
etaddresstothis
odeIfthe
odehasbee
joi
edi
this
etworkthedatatra
smittedbythis
odewillbereceivedbycoordi
atora
dshow
i
theLCDThesoftwareflowofase
sor
odeaseachse
sor
odeisswitchedo
itsca
sall
5
f兰州交通大学毕业设计英文文献
cha
elsa
dafterseei
ga
ybeaco
schecksthatthecoordi
atoristheo
ethatitislooki
gforItthe
performsasy
chro
izatio
a
dassociatio
O
ceassocir