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t
y
m
ain
ten
a
n
c
e
m
a
n
ag
e
m
e
n
t
s
y
s
te
m
.
T
o
illu
s
tr
at
e,
s
y
s
te
m
atic
d
ata
s
to
r
ag
e
an
d
m
a
n
ag
e
m
e
n
t
is
p
r
o
v
id
ed
.
No
tif
ier
s
ca
n
b
e
id
e
n
ti
f
ied
o
r
v
er
if
ied
.
T
h
ese
h
elp
o
f
f
icer
s
in
c
h
ar
g
e
o
p
er
ate
m
o
r
e
ef
f
icie
n
tl
y
.
I
n
v
o
l
v
ed
p
er
s
o
n
s
ca
n
f
o
llo
w
m
ai
n
te
n
an
ce
s
tat
u
s
v
ia
in
ter
n
e
t
n
et
w
o
r
k
s
.
B
esid
es,
r
ep
o
r
ted
d
ata
ca
n
b
e
s
u
b
m
it
ted
f
o
r
p
lan
n
in
g
an
d
d
ec
is
io
n
m
a
k
in
g
.
B
u
t
d
esp
ite
th
e
ad
v
an
ta
g
es
o
f
ap
p
licatio
n
an
d
w
eb
ap
p
licatio
n
d
ev
elo
p
m
e
n
t
ap
p
r
o
ac
h
es,
s
o
m
e
li
m
itat
io
n
s
s
ti
ll
ex
is
t
.
Dis
p
lay
ed
lo
ca
tio
n
s
o
r
p
lace
s
o
f
f
ac
ilit
y
n
o
ti
f
icatio
n
(
W
h
er
e
f
ac
i
lit
ies
ar
e
d
a
m
ag
ed
)
ar
e
in
th
e
f
o
r
m
o
f
Ma
n
a
g
e
m
e
n
t
I
n
f
o
r
m
atio
n
S
y
s
te
m
,
w
h
ich
d
is
p
la
y
s
r
es
u
l
ts
i
n
te
x
ts
o
n
l
y
.
C
o
m
p
u
ter
f
ac
ilit
ies
in
UD2
6
6
at
U
B
u
il
d
in
g
co
u
ld
n
o
t
b
e
tu
r
n
ed
o
n
.
T
h
is
m
ea
n
s
t
h
e
d
ata
id
en
tifie
d
th
e
lo
ca
tio
n
i
n
tex
ts
,
i
m
p
in
g
i
n
g
o
n
th
e
o
p
er
atio
n
al
p
r
o
ce
s
s
o
f
o
f
f
icer
s
i
n
ch
ar
g
e
.
I
n
o
th
er
w
o
r
d
s
,
th
e
d
ela
y
o
cc
u
r
r
ed
b
ec
au
s
e
t
h
e
y
w
as
ted
ti
m
e
f
in
d
i
n
g
t
h
e
r
o
o
m
i
n
th
e
b
u
ild
in
g
.
I
f
in
ca
s
e
o
f
a
lar
g
e
ag
en
c
y
w
i
th
m
u
lt
ip
le
b
u
ild
i
n
g
s
,
f
lo
o
r
s
,
a
n
d
r
o
o
m
s
,
m
o
r
e
d
el
a
y
i
n
f
i
x
in
g
i
s
s
u
e
s
o
r
f
ac
ilit
y
m
ai
n
te
n
a
n
ce
s
h
a
ll
o
cc
u
r
.
An
d
if
o
f
f
icer
s
in
ch
ar
g
e
ar
e
n
e
w
,
it
ev
en
tak
e
s
s
o
m
e
ti
m
es
to
ex
p
lo
r
e
th
e
la
y
o
u
t
o
f
t
h
e
ag
e
n
c
y
a
s
w
e
ll
as
r
o
o
m
s
.
An
d
th
i
s
w
ill
b
r
in
g
t
h
e
o
p
er
atio
n
al
d
elay
,
to
o
.
T
h
u
s
,
w
it
h
r
ef
er
e
n
ce
to
all
is
s
u
es
an
d
li
m
itat
io
n
s
as
s
t
ated
,
th
is
r
esear
ch
p
r
esen
te
d
a
d
ev
elo
p
m
e
n
t
ap
p
r
o
ac
h
f
o
r
f
a
cilit
y
m
ai
n
ten
a
n
ce
m
an
a
g
e
m
e
n
t
s
y
s
te
m
b
ased
o
n
GI
S
(
Geo
g
r
ap
h
ic
I
n
f
o
r
m
atio
n
S
y
s
te
m
)
an
d
i
n
d
o
o
r
m
ap
.
T
h
is
ap
p
r
o
ac
h
m
a
k
es
th
e
o
v
er
all
o
p
er
atio
n
f
aster
.
I
t
s
to
r
es
an
d
d
is
p
la
y
s
g
eo
s
p
atial
d
ata,
lead
in
g
to
m
o
r
e
co
n
v
en
ie
n
t
o
p
er
atio
n
.
Of
f
icer
s
in
c
h
ar
g
e
d
o
n
o
t
n
ee
d
to
s
tu
d
y
b
u
ild
in
g
la
y
o
u
ts
i
n
d
etails
b
ef
o
r
e
th
e
o
p
er
atio
n
.
T
h
e
y
ca
n
s
i
m
p
l
y
ta
k
e
th
e
d
ata
f
o
r
p
lan
n
i
n
g
a
n
d
d
ec
is
io
n
m
a
k
i
n
g
.
Mo
r
eo
v
er
,
th
e
d
ev
elo
p
ed
s
y
s
te
m
ca
n
also
b
e
m
an
ip
u
lated
in
o
th
er
asp
ec
ts
,
e
.
g
.
,
th
e
d
is
p
la
y
o
f
r
o
o
m
s
an
d
b
u
i
ld
in
g
s
f
o
r
p
er
s
o
n
n
el
o
f
an
ag
e
n
c
y
.
2.
M
AT
E
RIAL
S AN
D
M
E
T
H
O
D
T
h
e
d
etails
o
f
th
is
p
ar
t
in
c
lu
d
ed
s
tu
d
y
ar
ea
an
d
r
elate
d
th
eo
r
ies
as
w
el
l
as
tech
n
i
q
u
es,
i
.
e
.
,
Geo
g
r
ap
h
ic
I
n
f
o
r
m
atio
n
S
y
s
t
e
m
,
Go
o
g
le
Ma
p
s
A
P
I
,
an
d
in
d
o
o
r
m
ap
.
T
o
im
p
le
m
en
t
t
h
e
r
esear
ch
,
s
y
s
t
e
m
an
al
y
s
is
a
n
d
d
esig
n
,
an
d
t
h
e
m
o
d
el
s
y
s
te
m
d
ev
elo
p
m
e
n
t
w
er
e
f
o
cu
s
ed
.
2
.
1
.
Study
a
re
a
T
h
e
s
tu
d
y
ar
ea
o
f
th
i
s
r
esear
c
h
f
o
r
th
e
s
y
s
te
m
d
e
v
elo
p
m
e
n
t
an
d
ap
p
licatio
n
w
as
P
r
in
ce
o
f
So
n
g
k
la
Un
i
v
er
s
it
y
,
S
u
r
at
T
h
an
i
C
a
m
p
u
s
.
T
h
e
m
ai
n
o
b
j
ec
tiv
e
w
as
to
ap
p
ly
th
e
d
ev
elo
p
ed
s
y
s
te
m
f
o
r
f
ix
i
n
g
is
s
u
es
o
r
li
m
ita
tio
n
s
o
f
tr
ad
itio
n
al
f
ac
i
l
it
y
m
ai
n
ten
a
n
ce
n
o
ti
f
icatio
n
.
T
h
e
m
o
d
el
s
y
s
te
m
p
r
ese
n
ted
in
t
h
is
r
esear
c
h
ca
n
b
e
ap
p
lied
in
ed
u
ca
tio
n
al
in
s
tit
u
tes o
r
an
y
ag
e
n
cies
.
2
.
2
.
G
eo
g
ra
ph
ic
info
r
m
a
t
io
n sy
s
t
e
m
Geo
g
r
ap
h
ic
I
n
f
o
r
m
atio
n
Sy
s
tem
is
a
p
r
o
ce
s
s
r
elate
d
s
p
atial
in
f
o
r
m
atio
n
b
y
co
m
p
u
ter
s
y
s
tem
.
T
h
e
d
ata
an
d
in
f
o
r
m
atio
n
ass
o
ciate
d
w
ith
th
e
s
p
atial
lo
ca
tio
n
,
s
u
ch
as
th
e
r
elativ
e
p
o
s
itio
n
o
f
th
e
m
ap
.
I
n
ad
d
itio
n
,
it
ca
n
h
elp
to
co
n
v
ey
m
ea
n
in
g
-
f
u
l
ch
an
g
es
in
tim
e
-
r
elate
d
in
f
o
r
m
atio
n
.
I
t
ca
n
u
s
ed
as
a
to
o
l
to
co
llect
d
ata
f
o
r
an
aly
s
is
an
d
d
is
p
lay
.
A
t
p
r
esen
t,
g
eo
g
r
ap
h
ic
in
f
o
r
m
atio
n
s
y
s
tem
is
p
o
p
u
lar
ly
u
s
ed
f
o
r
m
an
y
asp
ec
ts
s
u
ch
as
an
aly
zin
g
p
r
o
p
er
lo
ca
tio
n
,
m
an
ag
in
g
tr
an
s
p
o
r
tatio
n
r
o
u
tes
b
y
s
h
o
w
in
g
w
ith
v
ar
io
u
s
p
atter
n
s
f
o
r
in
s
tan
ce
,
w
eb
ap
p
licatio
n
an
d
ap
p
licatio
n
v
ia
m
o
b
ile
d
ev
ice
o
r
s
m
ar
tp
h
o
n
e
[
4
,
5]
.
Fo
r
f
ac
ilit
y
m
ain
ten
an
ce
n
o
tif
icatio
n
an
d
ass
et
m
an
ag
em
en
t,
GI
S
w
as
ap
p
lied
to
cr
ate
b
u
ild
in
g
lay
o
u
ts
o
f
th
e
u
n
iv
er
s
ity
in
th
e
f
o
r
m
o
f
Desk
to
p
A
p
p
licatio
n
[
3
].
2
.
3
.
G
o
o
g
le
M
a
p AP
I
Go
o
g
le
Ma
p
s
A
P
I
is
a
to
o
l
f
o
r
p
r
o
g
r
am
d
e
v
elo
p
m
e
n
t
o
r
f
o
r
ap
p
licatio
n
w
eb
s
ite
s
w
it
h
Go
o
g
le
Ma
p
s
as
p
ar
t
o
f
d
esire
d
w
eb
p
ag
es
[
6
]
w
r
itte
n
i
n
HT
ML
co
d
es,
J
av
aScr
ip
t,
an
d
o
t
h
er
co
m
p
u
te
r
lan
g
u
a
g
es
s
u
c
h
a
s
P
HP
,
J
av
a,
etc
.
[
7
,
8
]
in
o
r
d
er
to
d
ev
elo
p
w
eb
s
ite
s
o
r
ap
p
licatio
n
s
a
s
d
esire
d
.
Go
o
g
le
Ma
p
s
A
P
I
w
as
ca
p
ab
le
o
f
m
ap
d
ata
d
is
p
lay
.
T
h
e
ad
v
an
tag
e
o
f
Go
o
g
le
Ma
p
s
is
th
a
t
m
ap
s
an
d
s
atelli
te
i
m
a
g
es
ar
e
w
it
h
h
i
g
h
q
u
alit
y
an
d
co
v
er
all
s
u
r
f
ac
es
o
f
th
e
e
ar
th
u
n
d
er
d
if
f
er
en
t
s
ca
les
.
T
o
ex
te
n
d
w
h
at
Go
o
g
le
alr
ea
d
y
p
r
o
v
id
es,
th
er
ef
o
r
e,
d
o
es
n
o
t
r
eq
u
ir
e
r
ar
e
an
d
ex
p
e
n
s
i
v
e
r
eso
u
r
ce
s
.
Fu
r
th
er
m
o
r
e,
Go
o
g
le
Ma
p
s
A
P
I
is
an
o
p
en
s
o
u
r
ce
p
r
o
g
r
a
m
[
9
]
w
it
h
J
av
a
Scr
ip
t
.
P
r
o
g
r
am
m
er
s
ca
n
ac
ce
s
s
it
to
s
ee
p
r
o
g
r
a
m
c
o
d
e
d
etails,
an
d
to
r
ev
is
e
o
r
m
o
d
if
y
t
h
e
p
r
o
g
r
a
m
.
T
h
at
is
w
h
y
Go
o
g
le
Ma
p
s
A
P
I
h
as
b
ee
n
w
id
el
y
u
s
ed
to
d
ay
in
s
e
v
er
al
asp
ec
t
s
,
i
.
e
.
,
attr
ac
tio
n
s
r
ec
o
m
m
e
n
d
atio
n
an
d
r
o
ad
ac
c
id
en
t
r
ep
o
r
ts
[
1
0
]
.
Ho
w
ev
er
,
f
o
r
f
ac
ilit
y
m
a
in
te
n
a
n
ce
n
o
ti
f
ic
atio
n
,
th
e
p
r
o
g
r
a
m
h
as
n
o
t b
ee
n
ap
p
lied
y
et
.
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
F
a
cility
ma
in
ten
a
n
ce
ma
n
a
g
e
men
t sys
tem
b
a
s
ed
o
n
GI
S
a
n
d
in
d
o
o
r
ma
p
(
S
u
p
a
ttr
a
P
u
ttin
a
o
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r
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)
3325
2
.
4
.
I
nd
o
o
r
M
a
p
I
n
d
o
o
r
Ma
p
is
a
m
ap
d
is
p
la
y
i
n
g
t
h
e
in
s
id
e
o
f
b
u
ild
in
g
s
.
No
w
,
th
er
e
is
a
s
er
v
ice
f
r
o
m
Go
o
g
le
ca
lled
Go
o
g
le
I
n
d
o
o
r
Ma
p
f
o
r
ag
en
c
ies
to
p
r
esen
t
d
ata
o
f
la
y
o
u
t
s
o
r
m
ap
s
o
f
t
h
eir
b
u
ild
in
g
s
.
Mo
s
t
ag
e
n
cies
r
el
y
i
n
g
o
n
th
is
s
er
v
ice
ar
e
b
u
s
i
n
es
s
a
g
en
cie
s
li
k
e
d
ep
ar
t
m
e
n
t
s
to
r
es
.
T
h
e
m
ai
n
o
b
j
ec
t
iv
e
is
to
f
ac
ilit
ate
c
u
s
to
m
er
s
to
f
i
n
d
s
h
o
p
s
o
r
d
ep
ar
tm
e
n
t
cu
s
t
o
m
er
s
w
an
t
to
g
o
.
Fo
r
ex
a
m
p
le,
it
is
u
s
ed
i
n
s
h
o
p
p
in
g
m
all
s
in
T
o
k
y
o
to
h
elp
cu
s
to
m
er
f
i
n
d
s
h
o
p
s
[
11
]
.
B
e
s
id
es,
it
is
al
s
o
u
s
ed
to
f
i
n
d
ex
p
ec
ted
d
ep
ar
tm
e
n
ts
,
alo
n
g
with
t
h
e
an
al
y
s
is
o
f
cu
s
to
m
er
q
u
a
n
tit
ies
in
ea
ch
d
ep
ar
tm
e
n
t
s
o
a
s
to
s
u
p
p
o
r
t c
u
s
t
o
m
er
d
ec
is
io
n
m
ak
in
g
o
n
h
ea
d
in
g
to
t
h
eir
d
esire
d
d
ep
ar
tm
e
n
ts
[
12
]
.
T
h
is
s
er
v
ice
is
also
in
tr
o
d
u
ce
d
t
o
h
o
s
p
itals
f
o
r
f
ac
ilit
ati
n
g
p
atien
t
s
an
d
th
eir
r
elativ
es
w
h
e
n
g
o
in
g
f
o
r
h
o
s
p
ital
s
er
v
ices
in
d
if
f
er
e
n
t
u
n
it
s
.
T
h
er
ef
o
r
e,
th
er
e
is
n
o
p
r
o
b
lem
o
f
g
ett
in
g
lo
s
s
o
r
w
asti
n
g
ti
m
e
f
i
n
d
in
g
u
n
it
s
[
13
]
.
W
h
en
s
t
u
d
y
in
g
t
h
e
ap
p
licatio
n
o
f
t
h
is
s
e
r
v
ice
in
ter
m
o
f
ed
u
ca
tio
n
,
it
w
a
s
f
o
u
n
d
t
h
at
t
h
e
s
er
v
ice
i
s
u
s
ed
i
n
b
u
i
ld
in
g
la
y
o
u
t
m
ap
p
in
g
to
g
u
id
e
t
h
e
w
a
y
in
s
id
e
u
n
i
v
er
s
it
y
b
u
i
ld
in
g
s
[
14
]
.
Ho
w
e
v
er
,
a
f
ter
r
ev
ie
w
i
n
g
as
s
o
ciate
d
liter
atu
r
es,
th
i
s
s
er
v
ice
h
as
n
o
t
b
ee
n
ap
p
lied
to
f
ac
ilit
y
m
a
in
te
n
a
n
ce
n
o
tif
ica
tio
n
y
e
t
.
T
h
is
r
esear
ch
,
th
er
ef
o
r
e,
d
ev
elo
p
ed
in
d
o
o
r
m
ap
tech
n
iq
u
e
t
o
b
e
u
s
ed
f
o
r
f
ac
ilit
y
m
ai
n
te
n
an
ce
n
o
tif
ica
tio
n
.
T
h
e
p
r
o
g
r
am
u
s
ed
i
n
t
h
e
r
ese
ar
ch
w
as
n
o
t
Go
o
g
le
I
n
d
o
o
r
Ma
p
s
b
u
t
th
e
d
ev
elo
p
ed
i
n
d
o
o
r
m
ap
p
r
o
g
r
a
m
an
d
Ma
p
s
A
P
I
f
o
r
m
o
r
e
co
n
v
e
n
ie
n
t a
n
d
f
aster
d
ev
e
lo
p
m
en
t p
r
o
c
ess
.
T
h
e
h
ar
d
w
ar
e
an
d
s
o
f
t
w
ar
e
u
s
ed
in
t
h
e
s
y
s
te
m
i
s
s
h
o
w
n
in
T
ab
le
1
.
I
t
is
cla
s
s
i
f
ied
in
to
t
w
o
p
ar
ts
:
th
e
h
ar
d
w
ar
e
an
d
s
o
f
t
w
ar
e
f
o
r
th
e
c
lien
t
d
ev
ice
a
n
d
t
h
e
h
a
r
d
w
ar
e
an
d
s
o
f
t
w
ar
e
f
o
r
th
e
s
er
v
er
,
w
h
ic
h
h
a
v
e
d
if
f
er
e
n
t
d
etails.
Fo
r
th
e
clie
n
t
p
ar
t,
it
is
co
m
p
r
is
ed
o
f
t
w
o
p
ar
ts
,
w
h
ic
h
ar
e
th
e
s
m
ar
tp
h
o
n
e
to
d
etec
t
lo
ca
tio
n
d
ata
o
f
u
s
er
,
w
h
ic
h
ca
n
b
e
An
d
r
o
id
o
r
I
OS.
Fo
r
th
e
s
er
v
er
,
it
co
n
s
i
s
ts
o
f
th
e
s
p
ec
if
ic
s
o
f
t
w
ar
e
s
u
c
h
as
t
h
e
o
p
er
atin
g
s
y
s
te
m
,
ap
p
licatio
n
s
o
f
t
w
ar
e,
co
n
n
ec
tio
n
,
w
eb
s
er
v
er
,
an
d
d
atab
ase.
T
ab
le
1
.
Har
d
w
ar
e
an
d
s
o
f
t
w
a
r
e
s
p
ec
if
icatio
n
S
t
a
n
d
a
r
d
C
l
i
e
n
t
S
t
a
n
d
a
r
d
S
e
r
v
e
r
H
a
r
d
w
a
r
e
-
S
mart
p
h
o
n
e
-
T
a
b
l
e
t
-
M
i
c
r
o
c
o
mp
u
t
e
r
S
y
st
e
m So
f
t
w
a
r
e
-
A
n
d
r
o
i
d
-
I
O
S
-
M
S
W
i
n
d
o
w
s 8
o
r
u
p
p
e
r
A
p
p
l
i
c
a
t
i
o
n
S
o
f
t
w
a
r
e
-
W
e
b
b
r
o
w
s
e
r
-
A
p
a
c
h
e
-
M
y
S
Q
L
-
G
o
o
g
l
e
M
a
p
A
P
I
s
-
P
H
P
-
Jav
a
S
c
r
i
p
t
-
C
S
S
-
B
o
o
t
st
r
a
p
N
e
t
w
o
r
k
-
3G
/
4G
/
Wi
-
Fi
-
D
u
a
l
1
0
0
M
b
p
s
-
I
n
t
e
r
n
e
t
2
.
5
.
Sy
s
t
e
m
a
na
ly
s
is
a
nd
de
s
ig
n
Data
b
ase
an
al
y
s
is
a
n
d
d
esi
g
n
is
g
en
er
all
y
b
ased
o
n
f
u
n
ctio
n
s
o
r
m
ai
n
ca
p
ab
ilit
ies
o
f
th
e
s
y
s
te
m
s
o
th
at
d
ata
is
s
to
r
ed
co
m
p
r
eh
e
n
s
iv
el
y
an
d
co
m
p
letel
y
u
s
ed
.
T
h
is
r
esear
ch
p
r
esen
ted
m
ai
n
ca
p
ab
ilit
ies
o
f
th
e
s
y
s
te
m
v
ia
Use
C
a
s
e
d
iag
r
a
m
as
s
h
o
w
n
i
n
Fig
u
r
e
1
.
I
t
w
a
s
f
o
u
n
d
th
at
in
v
o
l
v
ed
p
er
s
o
n
s
o
r
u
s
er
s
co
u
ld
b
e
d
iv
id
ed
in
to
3
g
r
o
u
p
s
,
n
a
m
el
y
,
s
t
u
d
en
ts
,
lect
u
r
er
s
,
a
n
d
o
f
f
icer
s
.
T
h
e
f
i
g
u
r
e
s
h
o
w
ed
th
e
r
elatio
n
s
b
et
w
ee
n
s
y
s
te
m
ca
p
ab
ilit
ies
a
n
d
ea
ch
g
r
o
u
p
o
f
u
s
er
s
.
Fo
r
th
e
s
tu
d
en
ts
,
th
e
y
in
v
o
lv
ed
w
ith
t
h
e
s
y
s
te
m
i
n
th
e
s
e
n
s
e
t
h
at
th
e
y
co
u
ld
r
etr
iev
e
th
e
d
ata
o
f
t
h
eir
clas
s
r
o
o
m
s
to
g
u
id
e
th
e
m
to
t
h
e
b
u
ild
i
n
g
s
.
Fo
r
th
e
l
ec
tu
r
er
s
,
t
h
e
y
h
ad
m
o
r
e
r
ig
h
t
s
th
a
n
th
e
s
tu
d
e
n
ts
as
th
e
y
co
u
ld
ad
d
f
ac
ilit
y
m
ai
n
te
n
an
ce
n
o
ti
f
icatio
n
d
ata
in
class
r
o
o
m
s
;
an
d
co
u
ld
ch
ec
k
m
ai
n
te
n
an
ce
s
tatu
s
.
Fo
r
th
e
o
f
f
icer
s
,
th
e
y
h
ad
f
u
ll
r
ig
h
ts
as
th
e
y
co
u
ld
ad
d
class
r
o
o
m
d
ata
o
r
f
ac
ilit
y
d
ata
o
f
ea
ch
p
ar
ticu
la
r
class
r
o
o
m
.
T
h
ey
co
u
ld
ch
ec
k
m
ai
n
te
n
an
ce
s
ta
tu
s
f
r
o
m
le
ctu
r
er
s
.
T
h
ey
co
u
ld
u
p
d
ate
m
ai
n
ten
a
n
ce
s
tatu
s
o
f
f
ac
ilit
ies
u
n
d
er
m
ain
ten
a
n
ce
o
r
th
o
s
e
f
in
i
s
h
ed
.
I
n
ad
d
itio
n
,
th
e
y
co
u
ld
w
r
ite
an
y
r
elate
d
r
ep
o
r
ts
to
p
r
o
p
o
s
e
to
e
x
ec
u
t
iv
e
s
f
o
r
t
h
eir
d
ec
is
io
n
m
ak
in
g
o
r
p
lan
n
in
g
.
T
h
e
alg
o
r
ith
m
f
o
r
th
i
s
r
esear
ch
is
d
iv
id
ed
in
to
t
w
o
m
e
h
o
d
s
as
s
h
o
w
n
in
T
ab
le
s
2
an
d
3
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
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8708
I
n
t J
E
lec
&
C
o
m
p
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n
g
,
Vo
l.
9
,
No
.
4
,
A
u
g
u
s
t
201
9
:
3
3
2
3
-
3
3
3
2
3326
Fig
u
r
e
1
.
Use
ca
s
e
d
iag
r
a
m
T
ab
le
2
.
Nav
ig
atio
n
al
g
o
r
ith
m
N
a
v
i
g
a
t
i
o
n
A
l
g
o
r
i
t
h
m
O
u
r
d
o
o
r
N
a
v
i
g
a
t
i
o
n
R
e
a
d
G
P
S
S
i
g
n
a
l
;
I
f
G
P
S
S
i
g
n
a
l
i
s Val
i
d
{
G
e
t
C
u
r
r
e
n
t
u
se
r
’
s l
o
c
a
t
i
o
n
;
S
e
l
e
c
t
B
u
i
l
d
i
n
g
n
a
me
d
e
st
i
n
a
t
i
o
n
;
S
h
o
w
N
a
v
i
g
a
t
i
o
n
&
S
t
r
e
e
t
M
a
p
;
}
El
se
{
S
h
o
w
W
a
r
n
i
n
g
M
e
ssag
e
;
}
T
ab
le
3
.
Nav
ig
atio
n
al
g
o
r
ith
m
M
a
i
n
t
e
n
a
n
c
e
D
a
t
a
M
a
n
a
g
e
me
n
t
A
l
g
o
r
i
t
h
m
U
se
r
A
u
t
h
e
n
t
i
c
a
t
i
o
n
I
n
p
u
t
U
se
r
n
a
me
a
n
d
P
a
ssw
o
r
d
;
I
f
U
s
e
r
n
a
me
a
n
d
P
a
ssw
o
r
d
i
s
V
a
l
i
d
{
S
e
l
e
c
t
B
u
i
l
d
i
n
g
N
a
me
;
S
e
l
e
c
t
F
l
o
o
r
;
G
e
t
C
u
r
r
e
n
t
L
a
t
i
t
u
d
e
a
n
d
L
o
n
g
i
t
u
d
e
;
G
e
t
R
o
o
m N
u
m
b
e
r
a
n
d
N
a
me
;
I
n
se
r
t
M
a
i
n
t
e
n
a
n
c
e
D
e
t
a
i
l
d
a
t
a
;
S
h
o
w
I
n
d
o
o
r
M
a
p
}
El
se
{
S
h
o
w
W
a
r
n
i
n
g
M
e
ssag
e
;
C
h
e
c
k
U
se
r
A
u
t
h
e
n
t
i
c
a
t
i
o
n
}
2
.
6
Sy
s
t
e
m
dev
elo
p
m
ent
T
h
e
d
ev
elo
p
m
e
n
t
o
f
f
ac
ilit
y
m
ai
n
ten
a
n
ce
m
o
d
el
s
y
s
te
m
i
n
th
i
s
r
esear
ch
co
n
s
is
ted
o
f
t
h
e
ce
r
tai
n
d
ev
elo
p
m
en
t
to
o
ls
,
i
.
e
.
,
lan
g
u
ag
es
(
P
HP
,
J
av
aScr
ip
t,
C
SS
,
B
o
o
ts
tr
ap
,
an
d
Go
o
g
le
Ma
p
s
A
P
I
)
;
s
o
f
t
w
ar
e
as
a
h
o
s
t
f
o
r
ap
p
licatio
n
s
er
v
ice
(
Ap
ac
h
e
)
;
an
d
s
o
f
t
w
ar
e
f
o
r
d
ata
s
y
s
te
m
s
to
r
a
g
e
(
My
SQ
L
)
.
T
h
e
d
ev
elo
p
m
e
n
t
to
o
ls
m
ai
n
l
y
i
n
cl
u
d
ed
o
p
en
s
o
u
r
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I
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I
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NT
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n
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p
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ted
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y
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r
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ce
o
f
So
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g
k
l
a
Un
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v
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it
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Su
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at
T
h
an
i
C
a
m
p
u
s
.
RE
F
E
R
E
NC
E
S
[1
]
A
.
M
u
ll
e
r,
A
.
C
.
M
a
rq
u
e
z
,
a
n
d
B
.
Iu
n
g
,
“
On
th
e
c
o
n
c
e
p
t
o
f
e
-
m
a
in
ten
a
n
c
e
:
Re
v
ie
w
a
n
d
c
u
rre
n
t
re
se
a
rc
h
”
.
Relia
b
i
li
ty E
n
g
i
n
e
e
rin
g
&
S
y
ste
m
S
a
fety
,
Vo
l
.
9
3
No
.
8
,
p
p
.
1
1
6
5
-
1
1
8
7
,
2
0
0
8
.
[2
]
J
.
H
.
L
e
e
,
M
.
S
.
L
e
e
,
S
.
H
.
L
e
e
,
S
.
G
.
Oh
,
B
.
H
.
Ki
m
,
S
.
H
.
Na
m
,
a
n
d
J
.
S
.
Ja
n
g
,
“
De
v
e
lo
p
m
e
n
t
o
f
c
o
m
p
u
teriz
e
d
f
a
c
il
it
y
m
a
in
ten
a
n
c
e
m
a
n
a
g
e
m
e
n
t
s
y
ste
m
b
a
se
d
o
n
re
li
a
b
il
it
y
c
e
n
tere
d
m
a
in
ten
a
n
c
e
a
n
d
a
u
to
m
a
ted
d
a
ta
g
a
th
e
rin
g
,
”
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
C
o
n
tr
o
l
a
n
d
Au
to
ma
ti
o
n
,
S
ER
S
C
,
V
o
l
.
6
No
.
1
,
p
p
.
1
-
1
2
,
2
0
1
3
.
[3
]
H
.
I
.
El
-
G
a
m
il
y
,
a
n
d
K
.
Al
-
R
a
sh
e
e
d
,
(
2
0
1
5
).
“
De
p
lo
y
in
g
a
n
In
tera
c
ti
v
e
G
IS
S
y
ste
m
f
o
r
F
a
c
i
li
ty
a
n
d
As
se
t
M
a
n
a
g
e
m
e
n
t
:
Ca
se
S
tu
d
y
-
M
in
istry
o
f
Ed
u
c
a
ti
o
n
,
Ku
w
a
it
,
”
J
o
u
r
n
a
l
o
f
Ge
o
g
ra
p
h
ic
In
fo
rm
a
ti
o
n
S
y
ste
m
,
V
o
l
.
7
,
No
.
2
,
p
p
.
1
9
1
,
2
0
1
5
.
[4
]
M
.
A
n
c
o
n
a
,
N
.
Co
rra
d
i,
A
.
De
ll
a
c
a
sa
,
G
.
De
lza
n
n
o
,
J
.
L
.
Du
g
e
la
y
,
B
.
F
e
d
e
rici,
a
n
d
J
.
S
tep
h
e
n
s,
“
On
th
e
d
e
sig
n
o
f
a
n
in
tell
ig
e
n
t
se
n
so
r
n
e
tw
o
rk
f
o
r
f
las
h
f
lo
o
d
m
o
n
it
o
ri
n
g
,
d
iag
n
o
sis
a
n
d
m
a
n
a
g
e
m
e
n
t
in
u
rb
a
n
a
re
a
s
p
o
siti
o
n
p
a
p
e
r
,
”
Pro
c
e
d
ia
C
o
mp
u
ter
S
c
ien
c
e
,
V
o
l
.
32
,
p
p
.
9
4
1
-
9
4
6
,
2
0
1
4
.
[5
]
J
.
S
u
n
k
p
h
o
,
a
n
d
C
.
Oo
ta
m
a
k
o
rn
,
“
Re
a
l
-
ti
m
e
f
lo
o
d
m
o
n
it
o
r
in
g
a
n
d
w
a
rn
in
g
sy
ste
m
,
”
S
o
n
k
l
a
n
a
k
a
rin
J
o
u
rn
a
l
o
f
S
c
ien
c
e
a
n
d
T
e
c
h
n
o
l
o
gy
,
Vo
l
.
3
3
No
.
2
,
p
p
.
2
2
7
-
2
3
5
,
2
0
1
1
.
[6
]
M
.
L
ian
g
,
J
.
G
u
e
rra
,
a
n
d
P
.
Bru
silo
v
sk
y
,
“
Bu
il
d
i
n
g
m
u
lt
i
-
lay
e
r
so
c
ial
k
n
o
w
led
g
e
m
a
p
s
w
it
h
G
o
o
g
le
M
a
p
s
A
P
I
,
”
In
Pro
c
e
e
d
i
n
g
s
o
f
W
o
rk
sh
o
p
o
n
S
e
ma
n
ti
c
a
n
d
Ad
a
p
t
ive
S
o
c
i
a
l
W
e
b
(
S
AS
W
e
b
2
0
1
2
)
.
Un
iv
e
rsit
y
o
f
P
i
tt
sb
u
rg
h
,
2
0
1
2
.
[7
]
S
.
Ch
o
im
e
u
n
,
N
.
P
h
u
m
e
ja
y
a
,
S
.
P
o
m
n
a
k
c
h
im
,
a
n
d
C
.
Ch
a
n
trap
o
rn
c
h
a
i,
“
T
o
o
l
f
o
r
c
o
l
lec
ti
n
g
sp
a
ti
a
l
d
a
ta
w
it
h
G
o
o
g
le M
a
p
s A
P
I
,
”
U
-
a
n
d
E
-
S
e
rv
ice
,
S
c
ien
c
e
a
n
d
T
e
c
h
n
o
l
o
g
y
,
p
p
.
1
0
7
-
1
1
3
,
2
0
1
0
.
[8
]
D.
A
.
A
b
d
u
lM
o
n
im
,
Z.
H.
M
u
h
a
m
a
d
,
B.
A
lath
a
ri.
“
Us
in
g
th
e
o
b
je
c
t
m
a
p
p
in
g
a
p
p
ro
a
c
h
f
ro
m
a
n
a
l
y
s
is t
o
im
p
le
m
e
n
tatio
n
f
o
r
d
e
v
e
lo
p
i
n
g
st
u
d
e
n
t
re
g
istratio
n
sy
ste
m
,
”
In
d
o
n
e
s.
J
.
El
e
c
tr.
En
g
.
Co
mp
u
t.
S
c
i
,
V
o
l
.
1
4
N
o
.
2
,
p
p
.
1
0
3
0
-
1
0
3
8
,
2
0
1
9
.
[9
]
K
.
L
e
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Evaluation Warning : The document was created with Spire.PDF for Python.