Systems and methods for handling information from wireless nodes, including nodes for communication with aircraft, are disclosed. In the formula, Y1 represents a divalent linking group; each of R2 and R3 represents a group having 0 to 20 carbon atoms, which is not a fluorine atom, and either R2 or R3 may form a ring with Y1; m represents an integer of 1 or more; and Mm+ represents an m-valent organic cation. The head pipe supports the steering shaft to be rotatable around the shaft axis. However, as the driving elements are resilient, the first driven wheel can continue its rotation without being obstructed. The independent motorreductor provides motion trajectories for the conveyance device that are independent of, but synchronized with, the serviced stations.