NOVELTY - A power generation device comprises a modular patch of piezoelectric material (12) configured to generate an electric charge upon the power generation device subjected to mechanical vibrations, the modular patch comprising metallic cores (14), each surrounded by one of elongated piezoelectric structures, where collective metallic cores is configured to function as a first electrode for the modular patch of piezoelectric material.    USE - The power generation device is for an electronics assembly and tire assembly (claimed).    ADVANTAGE - Antenna beam power scavenging techniques, are no longer one of limited options to choose from for powering tire electronics. Thus, the functional capabilities of many types of tire electronics are increased. The option of utilizing batteries for power generation is no longer essential, thus, avoiding costly and cumbersome battery replacement.    DETAILED DESCRIPTION - A power generation device comprises a modular patch of piezoelectric material configured to generate an electric charge upon the power generation device subjected to mechanical vibrations, the modular patch comprising elongated piezoelectric structures, metallic cores, each surrounded by one of the elongated piezoelectric structures, where the collective metallic cores is configured to function as a first electrode for the modular patch of piezoelectric material, and conductive material encompassing each of the elongated piezoelectric structures, and forming a common second electrode for the modular patch of piezoelectric material; and an energy storage device configured to receive the electric charge from the modular patch of piezoelectric material, and to store selected amounts of the electric charge.    INDEPENDENT CLAIMS are also included for:    (a) an electronics assembly comprising a piezoelectric wire structure(s) (10) comprising an elongated portion of piezoelectric material, a metallic core surrounded by the elongated portion of piezoelectric material, the metallic core configured to function as a first electrode for the piezoelectric structure, and a conductive outer sheath (16) covering selected areas of the elongated portion of piezoelectric material, the conductive outer sheath configured to function as a second electrode for the piezoelectric structure; and a microcontroller coupled to the piezoelectric wire structure(s) for monitoring amounts of electric charge generated by, or provided to the piezoelectric wire structure(s);    (b) a tire assembly with integrated power generation features, comprising a pneumatic tire structure having a crown, which has a tread portion for making contact with a ground surface, bead portions for seating the tire to a wheel rim, and sidewall portions extending between each bead portion and the crown; and a power generation device; and    (c) a method of generating power from piezoelectric materials integrated with a vibrational system, comprising providing a piezoelectric wire structure(s) at a selected location relative to the vibrational system, where piezoelectric wire structure(s) has an elongated portion of piezoelectric material configured with an inner and an outer electrode; subjecting the piezoelectric wire structure(s) to mechanical strains associated with the vibrational system, such that electric charge is generated within the piezoelectric wire structure(s); and storing selected amounts of the electric charge generated in the piezoelectric wire structure(s), such that the stored electric charge is available for powering electronic devices associated with the vibrational system.    DESCRIPTION OF DRAWING(S) - The figure displays a cross-sectional perspective view of a piezoelectric wire structure, for use in the power generation device.    Piezoelectric wire structure (10)    Piezoelectric material (12)    Metallic core (14)    Conductive outer sheath (16)    Diameter (18)