Built-in sensors and other components bionic bat robots can achieve autonomous flight

In recent years, the field of bionic robotics has seen remarkable advancements, with various robots inspired by nature. For instance, "Parkour" robots mimic the agility of night monkeys, while soft robots emulate the flexibility of octopuses. Recently, a team from the California Institute of Technology introduced the Bat Bot B2, a bionic bat robot that closely replicates the shape and flight behavior of real bats. This innovative robot can fly autonomously and its research was recently published in *Science Robotics*. An image of the Bat Bot B2 is shown below, accompanied by a data map illustrating its design.  The Bat Bot B2 is a highly advanced autonomous robot equipped with an onboard computer and multiple sensors. These sensors help it navigate its environment and track the positions of its joints, such as elbows and hips. Notably, the researchers chose to install brakes only on the wing joints, which helped reduce the overall weight to just 93 grams, making the robot lighter and more agile. Another image highlights the internal structure of the Bat Bot B2, including its onboard computer, sensors, and other key components.  The robot’s body consists of a microprocessor, a 6-DOF inertial measurement unit (IMU), five DC motors, a carbon fiber frame, 3D-printed parts, and a thin silicon-based film for its wings. To enable autonomous flight, the robot uses custom electronic components and real-time navigation algorithms. It also features an IMU and five magnetic encoders at key joints to monitor movement. A diagram illustrates the flight mechanism and electronic structure of the Bat Bot B2.  The flight mechanism of the Bat Bot B2 mimics the complex movements of real bat wings, allowing it to maneuver and turn in mid-air like a living bat. The robot has only nine joints but uses 40 bat-like bones made of carbon fiber and a 56-micron-thick silicone film for its wings. While the current model is still fragile and not yet suitable for real-world applications, it represents a significant step forward in bio-inspired drone technology. Another image shows the robot performing a smooth descent without obstacles.  Currently, the Bat Bot B2 can perform various maneuvers, including smooth flight, cruising, slanting, and rapid dives. However, it still relies on visual sensors to perceive its surroundings. Future improvements aim to enhance its autonomy and adaptability. Researchers plan to study biological systems to refine small aerial drones, potentially using bat-like wing deformation mechanisms to improve future aircraft designs. Looking ahead, engineers hope this flexible robot could one day replace traditional quadcopters. Unlike conventional drones, the Bat Bot B2 operates quietly and can adjust its wing shape to navigate through tight spaces. This makes it ideal for tasks such as building inspections and disaster response, where stealth and agility are crucial. As the technology continues to evolve, the Bat Bot B2 may soon become a valuable tool in a variety of real-world applications.

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