Sistema di telecontrollo e teleallarme su rete GSM
The SENTINEL SMS is a compact remote monitoring system for security and automation of your home. This amodule 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 predetermined minimum or maximum thresholds, and / or opening of the contacts of ON-OFF sensors for security systems (burglar, fire, flood protection .. etc..).
SENTINEL can also operate in mode 2 bistable relay with simply sending an SMS or monostable mode with a call at no cost, to command, for example, opening a gate operator or other loads that require a' pulse activation . The SENTINEL SMS can also provide a local control ON-OFF autonomous, prefixing of the thresholds minimum or maximum temperature and / or voltage with a presettable hysteresis factor. THE SENTINEL SMS automatically sends a call or, optionally, a confirmation SMS to the phone caller, if a valid command is received by a user previously registered, but are ignored and deleted text messages sent by users are not recognized or not enabled and stored procedure with the initial activation, SMS containing a valid command is executed and automatically deleted from the SIM. The SENTINEL SMS remote control also has independent functions of automatic ON-OFF, enabling appropriate parameters member, you can implement a controller that controls up to 2 relays, depending on the temperature or 2 input voltages, and prefixing the minimum thresholds maximum set-point.
It is possible to preset up to 2 alarms for exceeding the minimum and maximum thresholds, both for voltage and for the temperatures. There are also 4 TTL digital inputs, whose change of state (one or more inputs) sends an SMS alert, with a reading of the status of all inputs.
The alarm handling analog and digital is complete, to allow a precise analysis of environmental conditions remotely telecontrollato. Is generated an alarm cycle to exceeding the predetermined threshold, in the temperature or voltage and the alarm status is stored on EEPROM; if and when the sensor reading falls to the normal state, that is below the preset threshold, it has 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 are equipped with a presettable delay from 0 to 255 s, within which there is no generation of an alarm, but only the display of the status of early warning of the open line on the LCD . The typical fields of application of remote SENTINEL SMS remote activation of boilers, air conditioners, lighting, irrigation, theft, etc.. and the opening of doors and gates, as well as control of remote environments, with the possibility of the reception of alarms generated by environmental sensors.
Examples of application for SENTINEL SMS
Temperature transducer
motorized valve
water level alarm
Level transducer Heather
Water Pump conditioning unit
GSM cellular phone
User's Manual
technical data
- MODEM
GSM Dual Band 900-1800 MHz with antenna and SMA connector
- Bidirectional control system vi SMS command and digital /analog data reading
- Microcontroller clock frequency 29.412 MHz - 64 KB FLASH, 2,4KB RAM, 2 KB EEPROM
- SIM
CARD reader standard integrated on board of GSM MODEM
- 2 outputs relays SPDT driving 10 A 250 V coil 12V optocoupled
- 8 analog inputs range 0 - 3 V 10 bit resolution
- 8 digital inputs TTL - status reading via SMS and alarm generation
- 4 LED for relays status
- Bistable commands of 2 relays by SMS sending
- Monostable command of one or more relays with automatic call rejection (zero cost call)
- Up to 250
enabled users with 9 of wich as special users (admin) for alarm receiving
- Automatic answer to confirm commands by SMS or ring
- Firmware FLASH resident upgradeable in circuit with PC serial connection
- Supervision capable with analog min, max threshold and control ON-OFF
by relays
- Serial port RS232C for PC parameters setup and firmware download
- Standard IDC connectors 2,54 mm for FLAT cable and screw connectors
- Main power 12.....14 V DC 1 A
- Dimension: polycarbonate case IP55 180 x 124 x 104 mm - weight 500 g
- User's manual and software utility for download on CDROM
Elcosys 
