Grain storage quantity detection method for horizontal warehouse and shallow silo

Abstract

The invention relates to a grain storage quantity detection method for horizontal warehouses and shallow silos. The grain storage quantity detection method comprises the following steps of: firstly selecting specific pressure sensors to lay a grain warehouse pressure sensor detection network; distributing the pressure sensors along the side wall of the grain warehouse in the mode that all the pressure sensors are evenly-spaced laid at d meter distance from the side wall; and determining whether a grain warehouse is calibrated or not so as to obtain a calibration parameter and a grain warehouse weight prediction model, spreading the top surface of a grain pile in the grain warehouse after the grain warehouse is fully filled with the grain, detecting the average output valve of the pressure sensor at the bottom of the grain warehouse, and detecting the grain storage quantity of the grain warehouse according to an actually-tested bottom surface area of the grain warehouse, a bottom surface area of the calibrated grain warehouse and calibrated parameters by using a model so as to obtain an estimated value of the weight of the grain warehouse. According to the grain storage quantity detection method provided by the invention, the pressure sensors are required to be arranged on the bottom surface of the grain warehouse, and a compensating item of a side grain warehouse friction action is added into a bottom surface pressure estimating model in order to avoid using the side pressure sensor and accurately obtain the estimated value of the pressure of the bottom surface of the grain warehouse, so that the quantity of the sensors is obviously reduced, and the device detection cost and the installation and maintenance cost are reduced.

Description

Technical field [0001] The invention belongs to the technical field of granary detection, and relates to a method for detecting the quantity of grains stored in a shallow round warehouse in a flat warehouse. Background technique [0002] Food security includes quantity security and quality security. Food quantity online detection technology and system research and application are important guarantee technologies for national food quantity security. Research and application in this area are related to national food security, have important significance, and will produce huge social and economic benefits. [0003] Due to the important position of grain in national security, the online detection of grain pile quantity is required to be accurate, fast and reliable. At the same time, due to the huge amount of grain and the low price, online inspection equipment for the number of grain piles is required to be low-cost, simple and convenient. Therefore, the high precision, reliability a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for detecting the quantity of grain stored in shallow and round warehouses in flat warehouses, so as to solve the problems that the existing detection methods require many pressure sensors and the cost of the detection system is high

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