We are daily following in magazines, newspapers, and on the internet the fast evolution of the IoT (Internet of Things). However, even with the velocity of technological innovation, we cannot leave aside the care for the environment. Thinking about it, several companies have started to create and invest in connected solutions that contribute with environmental preservation. In this text, you will get to know some of these devices, which are being developed in several countries in order to prevent and generate less impact on the environment, check out:

  1. Floating Sensor Network (University of Berkeley – California) – a system that can be implemented and integrated into rivers and water monitoring infrastructure, via cell phones, GPS, temperature, and salinity sensors. It can also be quickly activated in case of unforeseen events, such as floods, contamination, and other conditions in the watercourses.
  1. Invisible Tracck – is a wireless device that is being used in pilot programs to help to combat illegal deforestation at Amazon (Brazil). The devices operate with battery and stay in certain trees. By the time they are cut down and are in movement, the sensors send alerts with location coordinates to the Instituto Brasileiro do Meio Ambiente (Brazilian Institute of Environment) so that they can take the necessary measures.
  1. Assessment of Landslides using Acoustic Real-time Monitoring Systems (ALARMS) – micro acoustic and integrated sensors with wireless network capacity to provide warnings of instability on ground. The sensors are permanently installed and send a text message in real time when the acoustic activity of the soil reaches a predefined limit. The alarms use a steel pipe leading the signals out of the ground. This tube is placed in a hole in the ground, which is filled with sand or gravel. Sand and gravel produce more energy when the soil changes its surroundings and this facilitates signal detection. Therefore, as soon as a movement of land that can be incriminating is perceived, an alert is sent to the communities so that they can prevent themselves, and leave their houses before a worse event to occur.
  1. Sintelur – is a small sensor that can determine the amount of trash in a container. The captured data is sent to a monitoring center that, based on the amount of garbage and the location by GPS, maps strategies to collect trash around the city. The system also determinates optimal routes for garbage collection, reducing fuel costs and general expenses, in addition to decreasing greenhouse gas emissions from the garbage trucks.

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