Level 0 : Configurations

Tech Specs

Name : KORA
Type : Outdoor
List Of Variable air_pressure air_temperature relative_humidity particulate_matter
Short Description: Remote configuration dedicated to the continuous measurement of Particulate Matter (PM2.5) concentration, air temperature, relative humidity and atmospheric pressure.

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 network, weak and unstable signal
Availability of a stabilized direct current source at  24V
Variables of interest Variable 1: PM2.5
operational range:
instrumental precision
resolution
required standard:
Variable 2: Air Pressure
operational range: -500 – 1100 hPa
instrumental precision -
resolution -0.1 hPa
required standard: -
Variable 3: Air Temperature
operational range: -40-70°C
instrumental precision -
resolution -0.1°C
required standard: -
Variable 4: Relative Humidity
operational range: 0 – 100 %r.h.
instrumental precision -
resolution 0.1 % r.h.
required standard: -

Description

In order to meet the design requirements the "KORA" configuration is designed, based on the "Outdoor" model.

The measuring chain involves the combination of a dust sensor, a composite sensor (T-P-RH), both of third parties, and a remote station made in accordance with the Paradigm.

Two third party sensors have been used as measuring devices: "Lct 12n" produced by Qbit Srl, with cyclonic filter, and "8095-N" with solar shield template "00841.6" both produced by Lambrecht GmbH. The station is the ACROSTATION device family "O" (outdoor) released in 03C release.

The ACROboard "Station" v02 board is included in the Station, in its latest release.

This board is aimed at datalogging, communication (via GPRS) and power management (supplying components and charging the buffer battery).

The power is supplied from the electrical local network (properly transfomed to 12V), and the system houses a buffer battery 12V 12Ah.

Operationally, the station receives the signal from the instrument and generates, with the same continuity, the time series data in native form. The firmware developed for the Configuration allows metadating, time integration, and a first control of accuracy by filtering any unconsistent value. A basic configuration file is pre-installed in the microcontroller onboard the ACROBoard Station.

Finally, the GPRS module, with an unencrypted HTTP protocol, transmits data in accordance with the configuration file to the ACRONETWORK infrastructure, with the update frequency of the order of minutes.

Tips for Mounting and installation

The installation involves the use of a single pole in galvanized iron, preferably Ø 50mm., Which allows the station positioning (containment box) and sensors. The pole can be anchored to an existing structure by means of suitable collars or fixed to a prepared plinth, by means of a cup and bolts structure. Pole, any collars / anchorage brackets and the glass / bolts system are NOT supplied in the corresponding Do-it-yourself KIT.

Download Box

Additional sum of the costs of each 1st, 2nd, 3rd level component composing the configuration. The costs are directly taken from the suppliers and do not include VAT, shipping costs and customs duties.

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.