Remote Control System on the GSM Network
The
SENTINEL SMS
is a
compact system
for remote
monitoring for
security and
automation of
your home. This
allows two-way
remote control system, using
a normal phone, to
make reading
analog transducers and
sensors installed
in the remote on-off
(eg
temperature, humidity,
pressure,
level, etc.
..) and
receive alerts to
overcome fixed
minimum or maximum thresholds, and
/ or
opening of
the ON-OFF
contact sensors
security systems (burglar,
fire, etc.
Flooding ...).
It 'can
also operate
in bistable mode with
4 relays simply
sending an
SMS or
monostable mode
with a call at
no cost, to
command, for
example, opening
a gate motor
or other loads
that require a'
pulse
activation .
The SENTINEL
SMS can also
develop a local
control ON-OFF
independent,
prefixing
the minimum
or maximum thresholds
of temperature and /
or voltage with
a preset
hysteresis factor.
The SENTINEL
SMS automatically
sends a
call or,
alternatively, a
confirmation SMS to
the phone
caller, if
a valid command is
received by
a user previously
registered, while
deleted text
messages are
ignored and not
acknowledged or
sent by users
not allowed and
stored procedure
with the initial
activation,
SMS
containing a
valid command is
executed and automatically
deleted from
SIM. SENTINEL
SMS remote
control also
has independent
functions of
automatic on-off, enabling
the appropriate user
parameters, you can
implement a
controller that
controls up
to 4
relays, 4
as a function of
its temperature
or voltage
input, prefixing
the minimum
and maximum
set-point.
You
can preset
up to 8 alarms
for minimum
and maximum thresholds
are exceeded, both
the tensions for
the temperatures. There
are also
4 digital
inputs TTL,
whose
change of state (one or
more inputs) sends
an SMS alert, reading
the state of
all inputs.
The analog
and digital alarm
management is
very complete, allowing
a precise analysis of
environmental conditions remotely
controlled remotely. The
system generates an alarm
cycle to
overcome the threshold,
temperature or
voltage and
state of alarm
is stored
in EEPROM, and
when the
sensor reading falls
to normal, which
is below the threshold,
there is a second
cycle alerts
(SMS or call) to
signal the
return of
the alarm state.
The digital
alarms are
generated by
the opening of
a line normally
closed to
ground and
come with a
preset delay
from 0 to
255 s,
within
which there
is no generation
of alarm,
but only the
display of the warning
line was
opened on
the LCD .
The typical
fields of
application of remote
SENTINEL SMS
remote activation of
boilers, air
conditioners, lighting,
irrigation, burglar
alarm, etc.. and
the opening of doors
and gates, as
well as control of
remote environments,
with
the possibility of
receiving alarms
from environmental
sensors.
Example of application of
SENTINEL SMS
Temperature Transducer
motorized
valve
Flood Sensor
Level
Transducer
Heating
System
Water Pump
Air
conditionig Unit
Cellular Phone with number registered on
SIM-Card of the SENTINEL
User Manual
Specifications
* MODEM
GSM Dual
Band 900-1800
MHz whip
antenna with
SMA connector
*
Control system with
two-way sending
and receiving SMS
command
*
Microcontroller 29,412 MHz
- 64 MB
Flash, 2.4
MB RAM, 2
KB EEPROM
*
SIM card reader built
into the standards
of GSM
MODEM
*
4 relay
outputs with
SPDT 10
A 250
V 12V
coil with
optocouplers
*
8 analog
inputs with 10
bit resolution in
the range 0 -
3 V
*
8 digital TTL
reading of the state and
generate alerts
through SMS
*
4 status
LEDs for the
control of
the state relays
*
Commands can
be activated on
4 bistable
relays by
sending SMS
*
Monostable controls
on one or more relays
with automatic
rejection (cost)
*
Up to
250 registered
users and 9
enabled to receive notifications
and alarms
*
Automatic answer with
ring
or send
SMS to caller
*
Compiled firmware
resident on the
operating FLASH
update via
PC
*
Supervision by
analog thresholds
min, max
and ON-OFF
control relays
*
LCD Display 2 lines
x 20
characters with
LED illumination for control
*
RS232C serial interface
to PC
for setup
parameters and firmware
download
*
Standard connectors IDC
flat cable of
2.54 mm for tabs
and screw
terminal
*
Power 12
VDC 1
A
*
Dimensions:
polycarbonate
housing IP67
180 x
130 x
100 mm
- weight 800
g
*
User manual and software
utilities for
download on
CDROM
Elcosys 
