Page 26 - Summer 2024
P. 26

INTRODUCING


          THE BIONIC BEE



                                                                                                                                 Why join the Institution of Electronics?




                                                                                                                                 •  Corporate Members become                         •  Members are invited to “Coffee
          Festo’s Bionic Learning Network, which for over       The autonomous behaviour of the bee swarm                           people of letters, able to display                  and Chat”, our regular virtual
          fifteen years has been conducting research            is maintained using an indoor locating system
                                                                                                                                    post nominal letters, being a useful                opportunity to chat with one
          into the science behind flying objects, has           with ultra-wideband (UWB) technology. Eight
          announced for the first time the creation of          UWB anchors are installed on two levels enabling                    accreditation to show employers                     another, regarding issues currently
          an object that can fly in large numbers and           an accurate time measurement such that the                          and others they are recognised for                  affecting them and “Networking”
          completely autonomously in a swarm.                   bees can locate themselves in the space. These
                                                                                                                                    their achievements.                                 with like-minded, experienced,
                                                                anchors send signals to the individual bees which
          Presented at Hannover Messe 2024, the BionicBee       can then measure the distances independently                                                                            people.
          weighs 34 grams, is 220 millimetres long and has      to the respective transmitting elements and                      •  The Institution of Electronics is one
          a wingspan of 240 millimetres.                        calculate their own position using the time                         of the oldest Institutions specifically          •  Members can provide copy for
                                                                stamps.
                                                                                                                                    for electronics engineers both                      inclusion in Electron.
          For the first time, the developers used the                                                                               professional and amateur.
          technique of regenerative design, that is entering    For the swarming the bees follow paths                                                                               •  Student members can enter the
          a set of parameters into a software application       determined by a central computer that
          that uses defined design principles to establish      maintains collision-free flight through high                     •  Members receive a copy of Electron                  National Electronics Competition.
          the optimal structure - one that uses the least       spatial and temporal accuracy, including                            published quarterly.
          material possible while maintaining the most          possible interaction through air turbulence, a
          stable possible construction.                         phenomenon known as ‘downwash’.
                                                                                                                                 •  Members have access to historic
                                                                                                                                    publications on electronics.
          The body of the bee forms the compact                 An automatic calibration function is incorporated
          housing for the beating wing mechanism, the           to allow for the fact that each bee is hand
          communication technology and the control              assembled, meaning that even the smallest                        •  Members can request on
          components for the wing beats and adaptation          manufacturing differences can affect flight                         email address in the form
          of wing geometry. A brushless motor, three            behaviour.                                                          you@institutionofelectronics.ac.uk
          servo-motors, a battery, gear unit and various
          PCBs are enclosed within this tight space. The        In testing each bee determines its individually
          intelligent interaction between the motors and        optimised controller parameters, with an
          the mechanics enables the frequency of the            intelligent algorithm being deployed to calculate
          wing beats to be adjusted precisely for various       the hardware differences between the bees and
          movements. Thus, if the bee is flying forward         so allow the whole swarm to be controlled as if
          the geometry will be made such that the lift in       each bee were identical.
          the rear wing position is greater than that in the
          forward position so as to cause pitch. Similarly,     Reference: ‘Autonomous Flying in a Swarm’, MEPCA Magazine, June
          if the geometry is adjusted such that one wing        2024, p.46                                                        Become a
          generates more lift than the other, roll is created
          enabling the bee to fly off to one side.                                                                                member today...



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