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Festo presents its new bionic project “BionicSwift”
Thanks to radio-based indoor GPS with ultra-wideband technology (UWB) the BionicSwifts can fly safely and in a coordinated pattern in a defined airspace. To execute these flight manoeuvres as true to life as possible, the wings are modelled on the plumage of real birds. The agility of the artificial birds is not just due to their lightweight design and aerodynamic kinematics, but also to the use of function integration.
The Festo Bionic Learning Network has a long tradition of being inspired by natural flight. The creation of the BionicSwift represents the next chapter for Festo in the development of bionic flying objects. As in its biological model, the use of lightweight structures is at the heart of the artificial bird. Because in both engineering and in nature, the less weight there is to move, the less material is required, and the less energy is consumed. That is why the BionicSwift weighs just 42 grams despite having a body length of 44.5 centimetres and a wingspan of 68 centimetres. This makes it extremely agile, nimble and capable of flying loops and making tight turns. By interacting with a radio-based indoor navigation system, the robotic birds are able to move autonomously in a coordinated pattern in a defined airspace.
To be able to replicate natural flight as closely as possible, the wings of the BionicSwifts are modelled on bird feathers. The individual lamellae are made from an ultra-lightweight, flexible but very robust foam, and overlap each other. Connected to a carbon quill, they are attached to the actual hand and arm wings as in the natural model. The individual lamellae fan out during the wing upstroke, allowing air to flow through the wing. This means the birds require less power to propel the wing upwards. The lamellae then close during the downstroke to provide the flying robot with a more powerful flight. This close replication of bird wings gives the BionicSwift a better flight profile than previous beating wing drives.
Function integration in the tightest of spaces
The agility of the artificial bird is not just due to its lightweight design and aerodynamic kinematics, but also to the use of function integration. The bird’s body contains the compact construction for the wingflapping mechanism, the communication technology, the control components for wing flapping and the elevator, the tail. A brushless motor, two servo motors, the battery, the gear unit and various circuit boards are installed in the smallest of spaces. Through the intelligent interaction of the motors and mechanical systems, the frequency of the wing beats and the elevator for the various manoeuvres can be precisely adjusted.
GPS coordination of the flight manoeuvre
The coordinated and safe flight of the robotic birds is made possible by radio-based indoor GPS with ultra-wideband technology (UWB). Several radio modules are mounted in the space, forming fixed anchors that locate each other and define the controlled airspace. Each bird is equipped with a radio marker that sends signals to the bases, which can then locate the bird’s exact position and send the data collected to a central master computer, which functions as a navigation system. The system can use preprogrammed paths to plan and determine routes and flight paths for the birds. If the birds deviate from this flight path, for example due to a sudden change in ambient conditions such as wind or thermals, they immediate correct their flight path by intervening autonomously – without any human pilots. Radio-based communication means that position sensing is possible, even if there are obstacles and visual contact is partially lost. The use of UWB as radio technology guarantees safe and interference-free operation.
New inspiration for intralogistics
The intelligent networking of flight objects and GPS routing makes a 3D navigation system that could be used in the networked factory of the future. For example, by precisely locating the flow of materials and goods, process workflows can be improved and bottlenecks can be predicted. In addition, autonomous flying robots could be used for transporting materials, with their flight corridors a way of optimising the use of space within a factory.
Festo is a global player and an independent family-owned company with headquarters in Esslingen am Neckar, Germany. The company supplies pneumatic and electrical automation technology to 300,000 customers of factory and process automation in over 35 industries. The products and services are available in 176 countries. With about 21,000 employees in over 250 branch offices in 61 countries worldwide, Festo achieved a turnover of around €3.07 billion in 2019. Each year around 8% of this turnover is invested in research and development.
In this learning company, 1.5% of turnover is invested in basic and further training. Yet training services are not only provided for Festo’s own staff – Festo Didactic SE also supplies basic and further training programmes in the field of automation technology for customers, students and trainees.
Another step for the integral didactic concept of Bionics4EducationFesto Didactic presents a new product for the bionics didactic concept of Bionics4Education. What is new: the orientation towards the maker movement approach and the 4Cs. The aim is inspiring learners, finding new ways and solutions, dealing creatively with provided materials, and sharing these experiences with others to prepare them for the digital world of tomorrow.
Inspired by the plant world
The Bionic Flower is a construction kit inspired by the plant world. Festo Didactic developed the Bionic Flower following the models of mimosa plants and water lilies in cooperation with SkySpirit. The Bionic Flower opens and closes its petals as a reaction to external influences such as touch, proximity or light. These mechanisms can be discovered in a playful way by pupils in the classroom using sensors and control technology integrated in the Bionic Flower. The design, as well as the transfer of principles from the plant world, rounds off the teaching of curriculum topics in STEM education (Science, Technology, Engineering, and Maths). The topic of biodiversity can also be discussed in class.
Bionic work didactically prepared
One Bionic Flower can be used by up to three students at a recommended age of 10 and over. The petals contain the first bionic topic: the folding technique. The petals gain the necessary mechanical stiffness by folding. The mechanism for opening and closing the petals is electrically actuated with a stepper motor which opens and closes the petals one after the other. The movement and the light effects are controlled via Wi-Fi-enabled smartphones, tablets or PCs. If required, the microcontroller can be programmed with the graphic coding interface “Open Roberta”. Experienced students can also program their Bionic Flower in C++. The code is open source. This enables teachers to teach technical content via a new, interdisciplinary educational path. Accompanying teaching material, as well as the assembly manual, can be downloaded free of charge from our website www.bionics4education.com.
An expanded approach to promoting valuable skills
Students learn different aspects of STEM with the Bionic Flower – in a digital, creative and interdisciplinary way. The Bionic Flower combines bionics and technical education and is thus based on the competencies of the 4Cs: collaboration, communication, critical thinking and creativity to empower learners for the digital world of tomorrow.
In addition, soft skills such as working in a team are reinforced.
New in the concept: the maker movement approach
The maker movement is based on the DIY (do it yourself) culture and the idea of finding new ways and solutions, dealing creatively with materials, and sharing these experiences with others. The Bionic Flower takes this approach and combines Maker Education and STEM Education. In addition to assembling the Bionic Flower, learners can customize and expand on the Bionic Flower by using 3D printers, other materials, hardware and software.