A network system in multi-zones comprises a plurality of smart nodes and a plurality of zone controllers. The pressure sensor module is assembled to a seat, and configured to measure a pressure value of the seat and transmit the pressure value to the control module. The methodology includes designing a nominal filter, and decomposing this nominal filter into a simplified transfer function such that the family of treble boost, cut, and equalizer filters can be realized with moderate computational resources. The invention, moreover, relates to the methods for the preparation of such formulations. Such a switch-mode power supply or regulator may also be used in applications other than the LED illumination system.