An encrypted tamper proof fastener is proposed. Proposed fastener has a combination of plurality of protrusions and depressions in its head or nut or any combination that exactly engage with matching key or keys. The key is turned to tighten or loosen the proposed fastener. The combination of plurality of protrusion...

An irrigation system with intelligent power management that reduces to the minimum consumption of power from the grid and instead makes maximum use of non-polluting, renewable sources of energy is proposed. Proposed system firstly uses power available from any or a combination of Photo Voltaic Panel and a battery to...