Med-Hycos - the Project

The Project



Software Tools


The Mediterranean


Climate and Weather

Mediterranean Sea

Fresh Water


Knowledge base


Database Statistics

Countries Data








Data Collecting Platforms PM 46


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.