Method for improving uplift pressure measurement efficiency of large dam measuring point

Abstract

The invention provides a method for improving the uplift pressure measuring efficiency of a large dam measuring point. A measuring sensor and an uplift pressure acquisition controller are respectively arranged on each measuring point of a large dam, and each measuring point is connected with an upper computer by virtue of a CAN bus. The method comprises the following steps of: reading measuring point parameter data stored in advance from an uplift pressure measuring point parameter table of a database, so as to obtain addresses of all the measuring points and writing the addresses into a buffer zone; constructing all the measuring commands according to the addresses of all the measuring points in the buffer zone, and sequentially sending all the measuring commands to the uplift pressure acquisition controller of each measuring point via the CAN bus by virtue of a linked list; arbitrating the measuring commands by the uplift pressure acquisition controller of each measuring point, and if the address of the measuring command is consistent with the address of the uplift pressure acquisition controller, controlling the measuring sensor connected with the uplift pressure acquisition controller to carry out distributed acquisition on uplift pressure of the measuring point; and asynchronously sending data measured by the measuring sensor of each measuring point to the upper computer, decoding data received by the upper computer, and storing the data into a database.

Description

technical field [0001] The invention relates to the field of dam safety monitoring, in particular to a method for improving the measurement efficiency of uplift pressure at a dam measuring point. Background technique [0002] my country's dam safety monitoring automation system research work started from the early 1980s. In recent years, with the development of science and technology, the automation system of dam safety monitoring has also been greatly developed. The uplift pressure observation is an important link in the dam safety monitoring. [0003] Domestic uplift pressure measurement is more representative and adopts RS485 bus or MCU mode. These two methods are a mature bus mode, but with the development of the dam safety monitoring automation system, it is less and less suitable for the daily needs of production. If the number of pressure measuring points is less than 100, corresponding measurement software can be developed through various language programming envi...

AI Technical Summary

Problems solved by technology

This problem has been plagued by various professional surveyors in the field of dam safety monitoring, and there is no good countermeasure to solve it

Although this method solves the problem of uplift pressure measurement (the data of all measuring points can be measured), the measurement efficiency is low, the measurement period is long, and the acquisition speed is very slow, which brings great troubles to the observers

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