The invention provides a water bloom
early warning system and method based on combination of on-line monitoring and image recognition. The
system comprises an on-line acquisition device and a background early warning platform. The online acquisition device is suspended in a to-be-detected
water body and comprises a physicochemical index detection template and an
image acquisition module, the physicochemical index detection module is used for acquiring
water quality physicochemical indexes of the to-be-detected
water body, and the
image acquisition module is used for acquiring images in the to-be-detected
water body; and the background early warning platform compares each
water quality physicochemical index with a corresponding set threshold, determines the
eutrophication degree of the to-be-detected water body, evaluates the water bloom
outbreak risk level in combination with the color similarity between the image in the water and a reference old water image, and performs water bloom early warning according to the
outbreak risk level. Through automatic on-line monitoring of
water quality physicochemical indexes and combination with an image recognition technology, while accurate water bloom prediction is achieved, the labor and
time cost is reduced, and the method can be widely applied to
water source monitoring places such as rivers, lakes and reservoirs and has high
actual use value.