Level 0 : Configurations

Tech Specs

Name : LOCATELLI
Type : Outdoor
List Of Variable rain
Short Description: Outdoor Configuration, professional, standard WMO, designed for continuous measurement of "height" and "intensity of precipitation." Solar Powered and data communication via the mobile network (GPRS antenna).

DESCRIPTION:

Project Requirements

Site of interest Environment: rural, open field
latitudes: medium
aggressiveness: normal
mechanical stress: normal
solar radiation: good (some obstacles in the area)
temperature range: -15 - 40°C
Connectivity: GPRS mobile newtork, strong and stable signal
Note -
Variables of interest Variable 1: precipitation height in the time unit
operational range: tipping bucket volume - 0.1 mm
instrumental precision ± 2%
resolution 0.8 mm/min.
required standard: WMO

Description

The configuration “LOCATELLI” is based on the “Outdoor” model and is designed to meet the project requirements. The name comes from the site of the first intallation of this configuration (Locatelli Building, Universitary Campus, SV, Italy).

The following figure describes the general architecture scheme.

Measuring Chain

The measuring chain is featured at each site of installation by the coupling of a third party tipping bucket rain gauge and a remote station realized in compliance of the ACRONET Paradigm. The station hosts the Datalogger and rice-transmission of data functionalities.

The link to the ACRONETWORK infrastructure is direct, through the GPRS module mounted in the station.

Devices and physical connections

The selected measuring instrument is the rain gauge “15189” produced by Lambrecht with a Bucket in realized in inox steel and compliant with the WMO Standards.

The station is the device ACROSTATION family "O" (outdoor) in its release 02a. In particular, the instrument has an internal antenna GPRS and dedicated power module (ACROboard Power v01 r04 and backup battery). Power is supplied with a 10W solar panel.

The station also contains the electronic board ACROboard "Station" v01, in its more recent release, aimed at collecting and transmitting data.

The connection between the two devices is done through the shielded cable supplied with the sensor.

Signals, data and protocols

The station receives the signal of the sensor generating with the same continuity the timeseries of data in native format. The firmware of the configurataion allows the metadating, the integration in time, and an early check of the accuracy by filtering eventual anomalous values.

Finally, the GPRS module transmits data according with the configuration file, normally in compliance with a simple HTTP not encripted protocol.

Power

For normal characteristics of an installation site, the power is supplied exclusively by the solar panel the station is equipped with.

Implementation

To make the configuration operational, the corresponding firmware (available at the bottom of this page) has to be installed, by using the appropriate programmer, in the MIC which is mounted on the ACROboard Station (equipping the station itself).

Similarly, at the first run, the base configuration file (available at the bottom of this page) that makes available the dialog with the ACRONETWORK infrastructure has to be uploaded.

Mounting and Installing

To mount the station, a single pole is required (furnished within the KIT). It can host both the station (box and panel) and the sensor. It can be fixed to an existing structure (i.e., a banister) with simple collars (not included) or to the soil (or to a hard base) by using a “glass” system (not included) with 4 bolts (not included).

Download Box

This area includes both the firmware dedicated to this specific Configuration and the basic implementation. You can use the firmware to manage the electronic side of the apparatuses, while the basic implementation is fundamental to run the system (define parameters, position, etc.). You can easily download them or find them in the GitHub repository.

Firmware

The Firmware is the program (sequence of instructions) that has to be integrated directly into the microcontroller placed on the ACROBoard selected for the Configuration. Its main purpose is to start the MIC as well as to interact with the other electronic items. Here you can find the .7z, the .zip folders and the link to the GitHub repository.

Basic Implementation

This set of files is coupled with the firmware and is fundamental to set specific operational parameters (position, frequency of logging, etc.).Here you can find the .7z, the .zip folders and the link to the GitHub repository.