Geneq > Météorologie > Enregistreurs de données hydro-météorologiques

Terminal de transmission de données à distance Neon 2002C - Satellite
 


The NRT is a small self-contained unit which connects to sensors, records readings from them and transmits the data to a central server via satellite communications.

Features
  • Internet enabled
  • Built-in logger
  • Expandable via the Starlogger interface
  • SDI-12 interface for connection to a wide range of low-power instruments
  • On-board digital and analogue interfaces for direct connection to sensors and other instruments
  • Compatible with previous generation terminals (XRTs)

Description
The NRT-Satellite is a small self-contained unit which connects to sensors in the field, collects readings from those sensors, and transmits the collected data to a central server via satellite communications.

The Neon central server system is provided on a Neon Data Service basis and on a Neon Client System basis and provides a central computer system to monitor and receive data from many Neon NRT units in the field.

The NRT Satellite is designed to automate collection of remote data from environmental monitoring, industrial measurements, and utility metering via the international Globalstar LEO Satellite network from any location on the globe, except the Arctic, Antarctica, and Africa.

Fully bidirectional communications are possible via the Neon server. Data can be collected directly and the NRT programmed from any internet connection.

The NRT supports integrated logging or automated collection of data from an external data logger.

The NRT’s built-in modem supports packet data, switchboard circuit data, and SMS communications. Long battery life and low operating costs are made possible through use of advanced microcontroller technology and an efficient protocol that takes advantage of Globalstar’s packet transfer capability.

Specification
Physical specifications
Material Anodised aluminium
Size 200mm H x 112mm W x 50mm D
Weight 850 grams (including battery pack)
Operating temperature -20 to 60 °C. Not affected by humidity
Antennae External conical dielectric resonator 103mm D x 63mm H, 1m cable
Electrical specifications
Battery 10.8V 14Ah lithium (non-rechargeable)
External power 10.5 to 16VDC input available if required
Instrument power Continuous 3.6V nom (20mA max) plus 2.5V ref (5mA max)
I/O 2 x analog inputs – 12 bit resolution
1 x counter input – 16 bit 3kHz or 3–5V DC signal
1 x control output
1 x HSIO (16 x 16 bit bi-directional, synchronous data) channel
Serial Comms RS-232 (300 to 230,400 baud).
Integrated logger specifications
Storage memory 15,000 readings – non-volatile fl ash memory
Time clock Crystal regulated, +/- 10 seconds/month – automatically network synchronised
Scan rates Programmable from 1 second to 12 hours
Log intervals Programmable from 1 second to 1 week
Storage memory 15,000 readings – non-volatile fl ash memory
Operating modes Terminal (internet enabled data logger interface for
STARLOG compliant loggers)
Scheduled (Continuously to weekly – daily is default)
Integrated – fully programmable STARLOG compatible
micrologger
FTU – Field Test Unit via RS232 & IrDA for field support