| The “Sense4Energy” project aimed to develop a cost-effective and robust sensor network for greenhouses. By implementing this network, spatially distributed data acquisition was enabled. The generated data form the basis for future concepts and optimizations, providing valuable insights where they are most effective — in the greenhouse or at the plant level.
Initially, the project involved conception and planning, where the requirements for the sensor network were defined, and technical specifications were established. Particular attention was paid to cost efficiency, robustness, and wireless communication of the sensor nodes. In the subsequent development phase, individual sensor nodes were constructed and programmed to precisely measure light intensity, spectrum, humidity, and temperature. In parallel, the wireless communication infrastructure was set up to ensure reliable data transmission within the greenhouse. After completing the development, 21 assembled sensor nodes were integrated and installed, strategically placed in two sub-areas of the greenhouse. An additional sensor node was also positioned outside the greenhouse in the weather station area. This external station allowed comparative measurements to be conducted, such as determining light losses between the inside and outside. Particular emphasis was placed on enabling a simple and flexible installation at the defined positions, which was successfully achieved. The implemented wireless communication of data to a base unit ensured the use of existing infrastructure while also demonstrating the scalability of the system for greenhouses of different sizes.
During the test and validation phase, the sensor nodes were operated under real conditions, and the collected data were analyzed. The functionality and reliability of the system were confirmed. Finally, the insights and data gained were documented and prepared for future expansions and adaptations of the lighting system. |