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SS
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8708
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8708
A
u
to
ma
tic
tr
a
ffic lig
h
t c
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n
tr
o
l
ler fo
r
eme
r
g
en
cy
ve
h
icle
u
s
in
g
p
erip
h
era
l in
terf
a
ce
…
(
N
o
r
leza
h
Ha
s
h
im
)
1789
By
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a
p
ath
f
o
r
its
wa
y
.
I
f
th
e
tr
a
f
f
ic
li
g
h
t
alr
ea
d
y
s
h
o
w
s
g
r
ee
n
,
ti
m
e
d
u
r
atio
n
w
i
ll
b
e
d
elay
ed
u
n
til
th
e
e
m
er
g
e
n
c
y
v
e
h
icle
f
in
is
h
es
cr
o
s
s
in
g
t
h
e
j
u
n
c
tio
n
.
T
h
is
p
r
o
j
ec
t
u
s
es
R
ad
io
Fre
q
u
e
n
c
y
(
R
F)
f
o
r
w
ir
eless
s
ig
n
al
tr
a
n
s
m
i
s
s
io
n
.
T
h
e
tr
af
f
i
c
lig
h
t o
p
er
atio
n
w
i
ll t
u
r
n
b
ac
k
to
n
o
r
m
al
w
h
e
n
a
m
b
u
la
n
ce
f
in
is
h
e
s
cr
o
s
s
i
n
g
th
e
r
o
ad
.
T
h
e
s
y
s
te
m
d
es
ig
n
ed
is
an
al
y
ze
d
in
ter
m
s
o
f
d
etec
tab
le
r
an
g
e
an
d
r
esu
lt
s
p
r
o
v
e
th
e
s
y
s
te
m
is
ab
le
to
w
o
r
k
p
er
f
ec
tl
y
w
it
h
i
n
t
h
e
r
an
g
e
o
f
5
5
m
eter
s
o
f
d
is
ta
n
ce
b
et
w
ee
n
t
h
e
tr
an
s
m
i
tter
an
d
th
e
r
ec
ei
v
er
.
Fig
u
r
e
1
s
h
o
w
s
th
e
b
lo
ck
d
ia
g
r
a
m
o
f
t
h
e
p
r
o
p
o
s
ed
s
y
s
te
m
.
T
h
e
s
y
s
te
m
co
n
s
is
ts
o
f
o
n
e
tr
an
s
m
itter
a
n
d
o
n
e
r
ec
eiv
er
.
T
h
e
d
esig
n
ed
s
y
s
te
m
u
s
ed
R
F
li
n
k
s
to
co
m
m
u
n
i
ca
te
w
it
h
ea
ch
o
th
er
.
A
t
r
ec
eiv
er
’
s
s
id
e,
th
e
tr
af
f
i
c
lig
h
t
cir
c
u
it
i
s
co
n
n
ec
ted
to
R
F
r
ec
ei
v
er
w
h
ic
h
is
also
co
n
tr
o
lled
b
y
P
I
C
1
6
F8
7
7
m
i
cr
o
co
n
tr
o
ller
.
W
ith
P
I
C
1
6
F8
7
7
,
th
e
d
esig
n
w
as
s
i
m
p
li
f
ied
w
h
er
e
t
h
e
5
5
5
ti
m
er
s
ca
n
b
e
ex
cl
u
d
ed
in
th
e
cir
c
u
it
.
T
h
is
t
y
p
e
o
f
I
C
is
u
s
ed
f
o
r
ti
m
i
n
g
o
f
t
h
e
tr
af
f
ic
lig
h
t
cir
cu
it.
T
h
e
s
y
s
te
m
u
s
ed
3
1
5
MH
z
R
F
tr
an
s
m
itter
an
d
r
ec
eiv
er
m
o
d
u
le.
R
F
tr
an
s
m
itter
a
n
d
r
ec
ei
v
er
m
o
d
u
le
ar
e
v
er
y
s
m
all
i
n
d
i
m
e
n
s
io
n
s
an
d
h
a
v
e
a
w
id
e
o
p
er
atin
g
v
o
ltag
e
r
an
g
e
f
r
o
m
3
v
o
lts
to
1
2
v
o
lt
s
.
T
h
e
lo
w
-
co
s
t
R
F tr
a
n
s
m
it
ter
ca
n
b
e
u
s
ed
to
tr
an
s
m
it
s
i
g
n
al
u
p
to
1
0
0
m
ete
r
s
b
u
t t
h
e
w
o
r
k
i
n
g
en
v
ir
o
n
m
e
n
t,
a
n
ten
n
a
d
esi
g
n
,
an
d
s
u
p
p
l
y
v
o
lta
g
e
w
ill i
m
p
ac
t th
e
ef
f
ec
ti
v
e
d
is
ta
n
ce
.
Fig
u
r
e
1
.
Ov
er
v
ie
w
o
f
th
e
p
r
o
p
o
s
ed
s
y
s
te
m
T
h
e
r
est o
f
th
e
p
ap
er
is
o
r
g
an
i
ze
d
as f
o
llo
w
s
.
Sect
io
n
2
ex
p
lain
s
t
h
e
o
v
er
v
ie
w
o
f
th
e
r
esear
ch
m
et
h
o
d
u
s
ed
i
n
t
h
i
s
p
ap
er
.
R
es
u
lt
a
n
d
d
is
cu
s
s
io
n
s
ar
e
e
x
p
lain
ed
i
n
S
ec
t
io
n
3
a
n
d
f
in
al
l
y
,
t
h
e
a
u
th
o
r
co
n
clu
d
es
th
e
fi
n
d
in
g
s
o
f
t
h
e
p
ap
er
in
Sectio
n
4
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
Au
to
m
a
tic
tr
af
f
ic
li
g
h
t
co
n
tr
o
ller
f
o
r
em
er
g
e
n
c
y
v
e
h
icle
co
n
s
is
ts
o
f
b
o
th
s
o
f
t
w
ar
e
an
d
h
ar
d
w
ar
e
i
m
p
le
m
en
ta
tio
n
.
An
e
m
b
ed
d
ed
p
r
o
g
r
am
w
a
s
cr
ea
ted
u
s
i
n
g
Mi
cr
o
C
o
d
e
Stu
d
io
w
h
er
e
th
i
s
s
o
f
t
w
ar
e
w
as
s
p
ec
iall
y
d
esig
n
ed
f
o
r
P
I
C
co
m
p
iler
.
T
h
e
f
lo
w
ch
ar
t
o
f
th
i
s
p
r
o
j
ec
t
is
s
h
o
w
n
in
F
ig
u
r
e
2
.
On
ce
t
h
e
p
u
s
h
b
u
tto
n
is
p
r
ess
ed
,
an
R
F s
ig
n
al
w
i
ll b
e
tr
a
n
s
m
itt
ed
to
th
e
R
F r
ec
ei
v
er
.
T
h
is
w
il
l a
ctiv
ate
th
e
P
I
C
to
co
n
tr
o
l a
n
d
tr
ig
g
er
t
h
e
tr
a
f
f
ic
lig
h
t to
t
u
r
n
f
r
o
m
r
ed
to
g
r
ee
n
.
So
m
e
d
ela
y
s
w
i
ll b
e
in
tr
o
d
u
ce
d
if
t
h
e
e
m
er
g
e
n
c
y
v
e
h
icle
s
ti
ll
d
o
es
n
o
t
m
an
a
g
e
to
p
ass
th
e
tr
af
f
ic
l
ig
h
t
j
u
n
c
ti
o
n
w
h
er
e
t
h
e
ti
m
e
d
u
r
atio
n
o
f
th
e
g
r
ee
n
li
g
h
t
s
i
g
n
al
ap
p
ea
r
an
ce
w
ill
b
e
lo
n
g
er
.
T
h
e
tr
af
f
ic
li
g
h
t
s
y
s
te
m
w
ill
b
e
b
ac
k
to
n
o
r
m
a
l
w
h
en
th
e
e
m
er
g
e
n
c
y
v
e
h
icle
s
u
cc
es
s
f
u
ll
y
cr
o
s
s
e
s
t
h
e
tr
a
f
f
ic
lig
h
t j
u
n
ctio
n
.
T
h
e
s
ch
e
m
at
ic
o
f
th
e
tr
a
f
f
i
c
li
g
h
t
cir
c
u
it
i
s
s
h
o
w
n
i
n
Fi
g
u
r
e
3
.
T
h
e
r
eg
u
lated
p
o
w
er
s
u
p
p
l
y
co
n
s
is
t
s
o
f
L
M
7
8
0
5
v
o
ltag
e
r
eg
u
lato
r
a
n
d
t
w
o
f
ilter
ca
p
ac
ito
r
s
.
L
M
7
8
0
5
is
a
th
r
ee
ter
m
in
al
s
v
o
ltag
e
r
eg
u
lato
r
I
C
.
I
t
w
o
r
k
s
ac
tiv
e
l
y
to
m
ai
n
tai
n
5
v
o
lts
o
u
t
p
u
t
in
d
ep
en
d
en
t
o
f
th
e
o
u
tp
u
t
cu
r
r
en
t.
T
h
e
d
if
f
er
en
t
b
et
w
ee
n
th
e
o
u
tp
u
t
v
o
ltag
e
a
n
d
i
n
p
u
t
v
o
lta
g
e
is
c
o
n
v
er
ted
to
h
ea
t.
T
h
e
h
i
g
h
er
t
h
e
i
n
p
u
t
v
o
lta
g
e,
th
e
h
o
tter
t
h
e
L
M7
8
0
5
w
il
l
b
e.
L
M7
8
0
5
w
ill n
ee
d
a
h
ea
t
s
i
n
k
if
t
h
e
in
p
u
t
v
o
lta
g
e
is
h
ig
h
.
T
h
e
m
ax
i
m
u
m
r
ea
d
in
g
f
o
r
th
e
o
u
tp
u
t
v
o
lt
a
g
e
is
v
er
y
s
m
al
l
ar
o
u
n
d
4
.
8
–
4
.
9
v
o
lts
,
s
o
th
e
h
ea
t
s
i
n
k
i
s
n
o
t
n
ee
d
ed
.
T
h
e
tr
an
s
m
it
ter
an
d
r
ec
eiv
er
s
ch
e
m
a
tic
cir
cu
it
s
ar
e
s
h
o
w
n
in
F
ig
u
r
e
4
an
d
Fig
u
r
e
5
r
esp
ec
tiv
el
y
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
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8
8
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n
t
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&
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p
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,
Vo
l.
9
,
No
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3
,
J
u
n
e
201
9
:
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7
8
8
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1
7
9
4
1790
Fig
u
r
e
2
.
Flo
w
c
h
ar
t o
f
t
h
e
s
y
s
t
e
m
Fig
u
r
e
3
.
Sch
e
m
atic
o
f
tr
a
f
f
ic
lig
h
t c
ir
cu
i
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
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N:
2088
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8708
A
u
to
ma
tic
tr
a
ffic lig
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t c
o
n
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o
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ler fo
r
eme
r
g
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h
icle
u
s
in
g
p
erip
h
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l in
terf
a
ce
…
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r
leza
h
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s
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im
)
1791
Fig
u
r
e
4
.
T
r
an
s
m
i
tter
s
ch
e
m
at
ic
cir
cu
it
Fig
u
r
e
5
.
R
ec
eiv
er
s
c
h
e
m
atic
cir
cu
it
3.
RE
SU
L
T
S
A
ND
AN
AL
Y
SI
S
I
n
th
is
s
ec
tio
n
,
t
h
e
p
r
o
to
t
y
p
e
o
f
au
to
m
atic
tr
a
f
f
ic
li
g
h
t
co
n
tr
o
ller
f
o
r
e
m
er
g
e
n
c
y
v
e
h
icle
is
p
r
ese
n
ted
an
d
th
e
p
er
f
o
r
m
a
n
ce
a
n
al
y
s
i
s
o
f
t
h
e
d
esi
g
n
ed
s
y
s
te
m
f
o
r
d
i
f
f
e
r
en
t
d
is
ta
n
ce
s
is
s
h
o
w
n
.
Fi
g
u
r
e
6
s
h
o
w
s
t
h
e
tr
a
f
f
ic
lig
h
t c
ir
cu
it o
n
P
r
in
ted
C
ir
c
u
it
B
o
ar
d
(
P
C
B
)
.
T
h
er
e
ar
e
f
o
u
r
p
u
s
h
b
u
tto
n
s
at
th
e
tr
an
s
m
itter
cir
cu
it b
o
ar
d
.
E
ac
h
b
u
tto
n
ca
n
co
n
tr
o
l
t
h
e
s
et
o
f
L
E
Ds
o
n
e
ac
h
j
u
n
ctio
n
as
d
ep
icted
.
T
h
e
m
icr
o
co
n
tr
o
ller
is
th
e
b
r
ain
f
o
r
th
is
p
r
o
j
ec
t
an
d
is
u
s
ed
to
in
itiate
th
e
tr
af
f
i
c
s
ig
n
a
ls
at
th
e
in
ter
s
ec
tio
n
s
o
n
r
o
ad
.
T
h
r
ee
L
ig
h
t
E
m
itt
in
g
Dio
d
es
(
L
E
Ds)
w
er
e
p
lace
d
at
ea
ch
j
u
n
ctio
n
to
r
ep
r
esen
t
r
ed
,
g
r
ee
n
a
n
d
y
e
llo
w
lig
h
t.
T
h
e
tr
an
s
m
itter
a
n
d
r
ec
eiv
e
r
cir
cu
it
b
o
ar
d
s
ar
e
s
h
o
w
n
i
n
F
ig
u
r
e
7
a
n
d
Fi
g
u
r
e
8
r
esp
ec
tiv
el
y
.
R
F
m
o
d
u
les
ar
e
u
s
ed
to
s
e
n
d
an
d
r
ec
ei
v
e
r
ad
io
s
ig
n
al
s
b
et
w
ee
n
th
e
t
w
o
cir
cu
it
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t
J
E
lec
&
C
o
m
p
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n
g
,
Vo
l.
9
,
No
.
3
,
J
u
n
e
201
9
:
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7
8
8
-
1
7
9
4
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Fig
u
r
e
6
.
T
r
af
f
ic
li
g
h
t
m
o
d
el
Fig
u
r
e
7
.
T
r
an
s
m
i
tte
r
s
ch
e
m
at
ic
cir
cu
it
Fig
u
r
e
8
.
R
ec
eiv
er
s
c
h
e
m
atic
cir
cu
i
t
3
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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N
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8
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8708
I
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