Developing MATLAB coding and simulation

"Develop a warning system for grounding system of substation (Pencawang Pembahagian Utama, PPU). The grounding system will be checked based on event occur. There will be 2 conditions: 1. Normal condition (low frequency) 2. Lightning phenomenon (high frequency) Every time the input entered, the grounding system will be checked for its threshold value. If above the threshold value, a warning system will be triggered. If below the threshold value the grounding system is said to be in good condition. And to plot current and voltage. Thank you.