Automatic drainage flood prevention early warning method, device and system

Abstract

The invention relates to the technical field of drainage flood prevention, and particularly discloses an automatic drainage flood prevention early warning method; the automatic drainage flood prevention early warning method comprises the steps of acquiring the water level data of a water collecting well and a water level image of the water collecting well; if the water level data of the water collecting well is lower than a set water level threshold value, sending a control instruction for stopping drainage to a water pump; if the water level data of the water collecting well reaches the set water level threshold value, controlling the water pump to drain; if the water level data of the water collecting well is higher than a first water level threshold value, sending a water level warningsignal to an upper computer; if the water level data of the water collecting well is higher than a second water level threshold value, calculating the water level rising speed of the water collectingwell according to the water level image of the water collecting well; calculating the time that water level of water collecting well overflows a cable trench; and sending the water level image of thewater collecting well and the time that water level of water collecting well overflows the cable trench to the upper computer. The invention further discloses an automatic drainage flood prevention early warning device and system. The automatic drainage flood prevention early warning method provided by the invention has the advantages of being flexible and capable of realizing remote monitoring.

Description

technical field [0001] The invention relates to the technical field of drainage and flood control, in particular to an automatic drainage and flood control early warning method, an automatic drainage and flood control early warning device and an automatic drainage and flood control early warning system including the automatic drainage and flood control early warning device. Background technique [0002] Most of the emergency drainage used in the prior art is a submersible pump with a height of at least 30-50 cm. It must be started after the accumulated water overflows the pump, which means that there is usually a minimum of 30-50 cm of accumulated water in the normal cable trench. . In addition, the existing submersible pumps are basically controlled by the float valve, which has several disadvantages: the float valve is easily entangled by debris, and the shaft of the lifting rod is easily attached by garbage, which affects the flexibility of opening and closing. With the c...

AI Technical Summary

Problems solved by technology

In addition, the existing submersible pumps are basically controlled by the float valve, which has several disadvantages: the float valve is easily entangled by debris, and the shaft of the lifting rod is easily attached by garbage, which affects the flexibility of opening and closing. With the change of water level, Frequent opening and closing affects the service life of the water pump; and it is impossible to remotely monitor the status of the water level gauge equipment, let alone realize remote human intervention

Images