Unique initiative tracking system is first choice for walking, to reduce roll-over. The widely used passive tracking system (acting as second choice), gets started under emergency. By this dual-guarantee, the machine can have more smooth operation.Mobile controlled detection: start-up and stop, running state and live data can be detected & controlled by mobile through GSM. (Live data include: live photos, voice, temperature, moisture, soil moisture, wind speed, wind direction, sunlight intension, rImprove machine performance and irrigation management by minimal investmentThe operation cycle can be adjusted to adapt to water needs in different growing period of copsLow cost, high performance, high efficiency.Complete safety marks.