RICM4 2017 2018 - Serre Connectee

Project presentation

Sky view of the exploitation (© Google Maps)

The project subject : Serres connectées.

The project consist of upgrading a classic greenhouse to retrieve live information about its climate. The farm exploitation is located in Saint-Cassien (38500), in the French Alps.

Data to retrieve :

• Air temperature
• Air moisture
• Soil moisture

Control of these parameters are essentials to avoid disease, enhance the growth of the plantations and limit water consumption.

Two main constrains :

• No power in the zone
• Sensors needs to be moveable to let vehicles move along the greenhouse

(Presentation from last year)

Team

• Supervisor: Nicolas Palix

• Members: Guillaume.Besnard Timothée.Depriester

• Department: RICM 4, Polytech Grenoble

Calendar

The project started on January 22th, 2018

Week 1 - 22/01/2018

• Getting to know the nucleo card :
  • We tried online mbed compilation tools
  • We manage to cross-compile locally on Arch Linux and deploy on the card
  • We transmitted data betwteen two LoRa card using peer to peer transmission
  • Using the Lora module OVER the nucleo extension card is not currently working.

• Zenkit agenda created

Week 2 - 29/01/2018

• Contacting the IESE group
• More in depth understanding of the project objectives
• Begin the docker documentation reading
• Store and display data specification
  • InfluxDB
  • Graphana

Week 3 - 05/02/2018

• Git Repository creation
• Added our Zenkit backlog to the wiki
• Testing Pico Lora Gateway
  • Flashed the gateway (the software was outdated, leading to an error)
  • Configuration tuning to match the "Ping Pong" test software.
  • Testing the gateway with the logger utility
  • Forwarding the packet with the picoGW_packet_forwarder
  • Successfully retrieved a "Ping" (conversion base64 to ASCII)
  • Only work when sending a great amount of packet: lot of loss ?

Week 4 - 12/02/2018

• Spent lot of time on the gateway
  • Huge amount of packets were lost beforehand
  • PacketForwarder configuration file and source modification to have coherent frequency, spectrum ...
  • All packets can now be forwarded to a UDP server (local in our case)
• Started to have a look on Node-RED
  • We received JSon from the gateway
  • We are able to decode the base64 payload
• SRS and UML added to the wiki

Week 5 - 5/03/2018

• Started to work on automatisation with Docker
  • Using DOcker Compose
  • Optimization of container with special image for compilation
• External sensor is now working and sending data
  • Searching for appropriate library
  • Plugged into the numerical pin on the lora board

• Demo preparation for the JPO
  • Simple POC (still not encoded properly)
  • Using a Raspberry Pi
  • Result displayed on Graphana (temperature & humidity)

Week 6 - 12/03/2018

• Finalize demo for JPO
  • Grafana configuration
  • Change mbed code formatting / code cleaned up for different sensors
  • Docker image with all configuration generated

Week 7 - 19/03/2018

• Test gateway reliability : losing 1/5 packets
  • Test docker image on Armv6 and x86
  • Test with different time interval
  • Test with different power dBm
  • We didn't manage to identify the problem
    • Radio configuration ?
    • Wave interference ?