Projets-2016-2017-Serres connectées

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

Team

• Supervisor: Nicolas Palix and Vincent Hibon

• Members: Antoine Boisadam, Oriane Dalle

• Department: RICM 4, Polytech Grenoble

Documents

• Software Requirements Specification

Calendar

The project started on January 9th, 2017.

Week 1 (January 9th - January 12th)

• Project selection (List of all subjects)

Week 2 (January 13th - January 19th)

• Introduction to LoRa by Didier Donsez.
• Discovery of the project
• Setup of our computers to be able to program our Adafruit Feather.
• First Hello world with the hardware (Discussion between two Adafruit Feather 32u4 in LoRa)
• Call with one of the managers of the farm, Vincent, the feeling is good with him, we spoke during one hour :
  • He spoke about him and his wife farm exploitation
  • He detailed the farm layout
  • We asked him some precise questions about the project (Types and numbers of sensors wanted, data wanted, ...)
  • We agree on a meeting for the next Wednesday (25/01/2017)

Week 3 (January 20th - January 26th)

• Define the use case diagram
• Taking charge of the Adafruit Feather card and the PyCom one.
• We wrote a little program that is able to send and receive data. At the moment these data are fake temperature until we embedded real sensors
• We determinate the length maximum of data that we can sent to be able to record data each 30 minutes and respect the duty cycle (1% of the time)
• The meeting was canceled by the managers of the farm and reported to the 8th of February

Week 4 (January 27th - February 5th)

• No official time slot for the projec this week (Postpouned)
• Call with Vincent Hibon on the 1st of Feb. We spoke about the advancement of the project.

Week 5 (February 6th - February 12th)

• We got some new hardware : Mbed SX1272 with a ST Nucleo board, therefore we have to re-setup our computers to makes these cards working. Adafruit cards will be given to the project n°2.
• On wednesday afternoon, first meeting at the farm with Vincent. We also meet Isabelle, Vincent's wife, the manager of the farm. Here is a report of this afternoon (in French).
• There are some pictures picked today (yes, the forecast wasn't very good...) :

General view of the greenhouses

Inside view of a greenhouse

Week 6 (February 13th - February 19th)

• Monday:
  • We are very disheartened with these new STM32 cards. Three other hours lost in making research about how to make it works.

• Tuesday:
  • Nice day ! Finally STM32 worked today, we were able to run the "PingPong" example program (link) and exchange some data
  • We are able to transform voltage from the temperature sensor[1] to degree celsius.
  • NB: We use picocom /dev/tty.usbmodem1423 on macOS 10.12 and Putty (/dev/ttyACM0) on Ubuntu to have a console output.

• Thursday:
  • Didier Donsez gave us a new sensor that is able to record temperature AND moisture.
  • Setup NodeRed + InfluxDB (docker) in contemplation of this tutorial : Developing IoT Mashups with Docker, MQTT, Node-RED, InfluxDB, Grafana.
  • We also speak about the Eclipse IoT Day Grenoble 2017 and sent mail to the Fablab in order to create a 3D Greenhouse in Plexiglass

Week 7 (February 20th - February 26th)

• Polytech holidays
• Setup and training with this tutorial : Developping IoT Mashups with Docker, MQTT, Node-RED, InfluxDB, Grafana

Week 8 (February 27th - March 5th)

• Work on the I-Greenhouse progress summary
• Designing a 3D plan for a Plexiglas greenhouse

• Going to the FabLab in order to carve the model. The base is made of MDF (Medium-density fiberboard) and the structure is made of Plexiglas.

Greenhouse model

Greenhouse model

• Set-up Node-red, we are able to retrieve data printed by the device (connected on /dev/ttyACM0)
  • The Extract data function :

setTimeout(function() { node.status({}); }, 500)
node.status({fill:"green",shape:"dot",text:"updated"});
return msg;

Node-red dashboard

Week 9 (March 6th - March 13th)

• Node-red, Mosquitto, InfluxDB and Grafana

Grafana screenshot

• Our two node-red flow :

[ {"id":"bf6a6bfb.ad6698","type":"tab","label":"Flow 1"}, {"id":"48fb29d6.8abc8","type":"tab","label":"Flow 2"}, {"id":"a6ed7ef6.c3b1b","type":"serial-port","z":"","serialport":"/dev/tty.usbmodem1423","serialbaud":"9600","databits":"8","parity":"none","stopbits":"1","newline":"\\n","bin":"false","out":"char","addchar":false}, {"id":"cd1cd4b5.89a1b8","type":"mqtt-broker","z":"","broker":"localhost","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"willTopic":"","willQos":"0","willPayload":"","birthTopic":"","birthQos":"0","birthPayload":""},{"id":"45f90f43.5971c8","type":"influxdb","z":"","hostname":"localhost","port":"8086","protocol":"http","database":"iotdb","name":""}, {"id":"adb5fbbd.36c6d8","type":"influxdb","z":"","hostname":"127.0.0.1","port":"8086","protocol":"http","database":"yyu","name":""},{"id":"c74aaa1a.718428","type":"serial in","z":"bf6a6bfb.ad6698","name":"USBModem1423 (9600)","serial":"a6ed7ef6.c3b1b","x":190.5,"y":300,"wires":[["a999cf.d1e0163"]]}, {"id":"a999cf.d1e0163","type":"function","z":"bf6a6bfb.ad6698","name":"debugFunction","func":" setTimeout(function() { node.status({}); }, 500)\n\n node.status({fill:\"green\",shape:\"dot\",text:\"updated\"});\n\n return msg;","outputs":1,"noerr":0,"x":567.5,"y":237,"wires":[["bedd3839.57329"]]},{"id":"bedd3839.57329","type":"mqtt out","z":"bf6a6bfb.ad6698","name":"","topic":"iotdays/sensors","qos":"","retain":"","broker":"cd1cd4b5.89a1b8","x":956.5,"y":243,"wires":[]},{"id":"5c859882.c8211","type":"mqtt in","z":"48fb29d6.8abc8","name":"","topic":"iotdays/sensors","qos":"2","broker":"cd1cd4b5.89a1b8","x":323.5,"y":261,"wires":[["2b58b71.959ec48","a8ea218a.b140b8"]]}, {"id":"2b58b71.959ec48","type":"debug","z":"48fb29d6.8abc8","name":"","active":true,"console":"false","complete":"payload","x":768.5,"y":138,"wires":[]}, {"id":"a8ea218a.b140b8","type":"influxdb out","z":"48fb29d6.8abc8","influxdb":"45f90f43.5971c8","name":"IoT DB temperature","measurement":"temperature","x":734.5,"y":399,"wires":[]} ]

• We produced the Eclipse IoT Day Poster, here is the final version
• Demo at the Eclipse IoT Day 2017 (Resume coming soon)

Materials

Thermometer, barometer, moisture sensor

Nucleo LR073RZ with SX1272 LoRa shield

Pycom

Pycom_Lo

Electronic test plate

Solar panel

Waterproof case