Med-Hycos - the Data
The Project
Data
The Mediterranean
Knowledge base
Search
Contact
Data Collecting Platforms PM 46: Hardware Description
Hydrometeorological data
collecting platforms PM46 are manufactured according with specifications
requested by MED-HYCOS project. Designed for remote monitoring, the platform
is able to accommodate 17 sensors, in a range of temperatures from -20°C
to +70°C.
|
|
General characteristics
- Basic measurements of water level, rainfall, water temperature and air temperature
- Storage of elaborated data on waterproof removable cartridge flash type EEPROM, without connection,
- METEOSAT radio transmission (MED-HYCOS) and also possibility to use GOES/GMS, ARGOS, INMARSAT or modem.
- self power supply,
- Easy installation and maintenance,
- Possible evolution on site : interfacing of new sensors, processing...,
- Additional capacities for meteorology or water quality monitoring.
Designing of platform
- Modular device allowing interfacing of any type of sensors,
- Double housing unit : ventilated external box, watertight internal box including electronics,
- External box made of polyester-glass fibre resisting to severe environmental conditions (humidity, salinity;, sandstorms...),
- standard and evolutionary user's software,
- Configuration of the platform and set up of the measurement channels with interface keyboard - LCD screen,
- Verification and permanent display in-situ of housekeeping variables.
Data acquisition electronics
- Simple and secured by using tested components (built on a micro-controler INTEL 80C186).
- Self powered supply by solar panel with regulator on-board and a lead type battery.
- Very low consumption obtained by using 3 volts Cmos components .
Data processing
- Sampling interval programmable individually for each sensor from 1 minute to 60 minutes ,
- Fixing of zero of scale possible for water level,
- Pre-processing operations (minimal, maxima, means, filtering or anything else) programmable on interval times from 1, 6, 15, 30 minutes, 1, 3, 6, 12 or 24 hours,
- Data formatting for transmission,
- Data recording on-site using a solid state removable card and depending on minimum threshold variation (or other criteria) programmable for each sensor.
Sensors inputs
- 2 intelligent digital inputs for water level sensors ( SDI12, RS232/V28, CCI or TTL),
- 4 counting inputs (2 for tipping bucket rain gauges, 2 else for frequency measures),
- 12 analogue inputs (3 for wind, 9 for temperatures, hygrometry, atmospheric pressure, solar radiation and any sensors with low or high voltage output, current measure output or current loop),
- 3 digital communications output/input: 1 for METEOSAT (V28), 1 for a modem (V28), 1 for test and maintenance,
- Possibility (on request) of two code gray inputs
Data storage
- Data recording on removable memory card : solid state waterproof module, contact less (induction link), capacity of 128 Koctets or 1 Megaoctet.
Data transmission
- Data formatting depending on transmission system,
- Possibility to use transmitters UHF88 ARGOS, BM18 METEOSAT or SATURN Cof ABB for INMARSAT C. METEOSAT transmitter self-synchronisation by GPS, allowing automatic synchronization of the DCP.
- Bi-directional transmission possibility (remote control and maintenance) with INMARSAT-C,
- Coupling for telephone modem or VHF radio.
Self powered supply
- Nominal power supply : 12 V DC.
- Solar panel 20 Watts / waterproof lead battery 12 Volts / 26 Ah.
More information on the manufacturer Web site, CEIS-TM.