Remote Control System SENTINEL SMS on GSM Network
The Sentinel SMS is a compact System for
remote monitoring for security and automation of your home. This
two-way Remote Control System allows, using a normal phone to make
reading of analog sensors and transducers ( e.g. temperature, humidity,
pressure, levele, etc..) installed in the remote station, and to
receive alert by overcome of minimum and /or maximum
trheshold and alarms from ON-OFF sensors contact( burglar, fire, flooding, etc...)
connected to the digital lines of SENTINEL. It is possible also to
control 8 relays in bistable mode simply sending SMS or in monostable
mode at zero cost with a call ring to activate, for example, a
motorized gate opener or ather load requiring short pulse activation.
SENTINEL SMS automatically sends a call or, alternatively a
confirmation SMS to the caller, if a valid command by a registered
caller, while SMS sended by unregistered callers are
igonred and deleted without execution. SMS containig a valid command is executed and
then automatically deleted from the SIM. SENTINEL SMS can also implement a local
embedded ON-OFF automatic control, enabling the appropriate user
parameters and setting the minimum and maximum threshold levels the
related relays are controlled and activated as function of temperature
and voltage level.
You can preset up to 8
alarms for minimum and maximum set-point, both voltage and
temperatures. There are also 8 digital input lines TTL level,
whose change of state ( one or more inputs) let send an SMS alert
reading the state of all inputs.
The analog and digital alarm management is very complete, allowing a
precise analysis of enviromental conditions remotely controlled. The
system generates an alarm cycle when the trheshold is overcomed,
i.e. temperature and/or voltage and the currente alarm status is stored
on the EEPROM; when the sensor reading falls to normal level, which is
below the threshold, there is a second cycle alerts (SMS or call)
to indicate that signals ( analog and/or digital) are returned to
normal level.
The digital alarms are trigged by opening one or more input lines that
are normally closed to ground; It si available a prealarm delay,
(0 to 255 s) within which there is no alarm generation, but it is
only displayed the warning for opened line and
elapsed time. The typical fields of application of SENTINEL are: remote
activation of heating systems and boilers, of air conditioning systems,
of lighting, of irrigation, of burglar alarms, etc.. and remote opening
of doors and gates, as well as control of remote environments, with the
possibility of receiving alarms from fremote sensors.
Example of applications for
SENTINEL SMS
Temperature Transducer
Motorized
Valve
Flood Sensor
Level Transducer
Heating
System
Water Pump
Air Conditioning Unit
Cellular Phone with number registered on
SENTINEL's SIM Card
User Manual
Specifications
- GSM Dual
Band MODEM 900-1800 MHz with Aerial and SMA connector
- Bidirectional
Control System receiving and sending SMS (command / reading)
- Microcontroller
29.412 MHz clocked - 64 MB Flash, 2,4 MB RAM, 2 kB EEPROM
- SIM Card
standard reader built into GSM MODEM board
- 8 Relays
Outputs with SPDT 10 A 250 V contacts and optocouplers
- 8 Analog
Inputs with 10 bit resolution in the 0-3 V range
- 8 Digital TTL
level Inputs with reading of state an alarm trigger
- 8 Status LED
for relays control
- Bistable
command via SMS to control each of 8 relays
- Monostable
command by no cost call ( automatic rejection) for one or more relays
- Up to 250
registered users, 9 of which enabled to receive alarms and notifications
- Automatic
Answer by ring or sending SMS to registered caller
- Compiled
Firmware Flash resident upgradable by PC via RS232C
- Supervision by
analog thresholds min, max and ON-OFF relays control
- LCD Module 2
lines x 20 characters with LED backlight
- RS232C Serial
Interface to PC for parameters setup and upgrade download
- Standard IDC
2,54 mm connectors for flat cable and screw terminals
- Power 250 Vac
or 12VDC with automatic relays switch anti blackout
- Dimensions:
Standard Rack 2U x 420 mm
- Screw DIN
Terminals Rear positioned 44 poles
- User Manual
and software utilities for download on CDROM
Elcosys 
