by Aymeric Guillou, Javelot, France

 

Using connected devices to monitor temperature in grain silos is a solution to prevent and reduce the risk of grain warming, proliferation of insects or any kind of moistures. Today, the temperature is registered once-to-twice a month in many grain stores, those stores being themselves located in rural areas.

Developing a connected thermometry device has arisen as the best solution to follow the temperature of the grain with the most accurate data, optimising the use of ventilators and improving the follow up of the temperature as precisely as possible.

 

A connected sensor for an ongoing monitoring of the temperature

In that perspective, Javelot was founded in 2017. A young French company based in Lille (North of France), Javelot was founded by an engineer in agriculture and a farmer, storing himself grain on a farm. Both founders gave the same statement, regarding the lack of a precise solution to monitor grain temperature during storage.

There are two main factors that can damage grain during storage: humidity and temperature. Considering that humidity should not evolve, once the grain is stored, they decided to focus on the best solution to control temperature as efficiently as possible and finding a technical solution to prevent any risk of loss or damage.

From this statement, the idea was to develop a sensor, able to transmit and record temperature data. To do so, both founders asked an IoT company to work on the project with them to conceptualise and develop the software, in order to transform the project to a concrete solution. After a year and a half of work, to design the device and materialise the technology, Javelot was created. A two-metre long sensor, 100 percent autonomous and capable of working via wireless links to application available on PC andsmartphone, was their final creation.

 

From the trial phase to commercialisation

After a trial period with farmers storing grains in the Northern of France, to test and approve the technology, team Javelot has started to sell the sensors on the national French scale. Co-operatives, trading companies, and farmers doing on-farm storage became the three targets for Javelot. The two-metre long sensor is dedicated to flat stores and silos. Adapted for any kind of grains (wheat, soy, corn), the sensor offers innovative technology, by monitoring the store temperatures with remote access, optimising the human intervention in the silos, but also reducing the energy cost by ventilating as close as possible to the real need.

 

Advantage and benefits of Javelot

Javelot sensors offer several advantages. First, the sensors are 100 percent autonomous. It's a wireless sensor that doesn't require any Wi-Fi box in the silos. The transmission of data, from the sensor to the application, is made by a low power wide area network (LPWAN), enabling the transmission of significant amounts of data.

In terms of practicality, nothing easier for the user. Upon reception of the material, the user must plant the sensors in the grain. It's recommended to use one sensor for 300 tonnes of grains. The second thing to do is to open your account on the platform and register all the required information (type of grain stored, quantity stored in the silo) and draw your silo with the location of the sensors. A few minutes after opening your account, the temperature information will be available on the app.

The web platform and the app are very intuitive and easy to use, enabling the user to control the temperature of its storage from anywhere 24-hours a day and seven days a week.

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