Storage material height-measuring system

Abstract

The invention discloses a height measuring system for warehousing material, which comprises a bottom height measuring sensor, a modulation device, a control circuit, a data collecting device, a data transmission device, and a control software, wherein two height measuring sensors are installed in a warehouse, one sensor is positioned on the edge of the warehouse, and the other is positioned on the central position of the warehouse, the sensors are controlled by the modulation device, and the modulation device is connected with the control circuit. The signal of the sensors which are collected by a data collecting circuit are transmitted to a controlling machine room, the condition of materials in the warehouse is displayed by utilizing a analog warehouse, and the control circuit is controlled by the control software which is corresponded to the control circuit according to the condition of a measuring device. The technique is practical and reliable, which has convenient installation and modulation, simple and convenient maintenance and employment, high measuring accuracy, and durable employment, and the invention is applied in various adverse working conditions.

Description

Technical field: [0001] The invention relates to a measuring device, in particular to a height measuring system for stored materials. Background technique: [0002] The scale of the large grain depot and the capacity of its granary have brought some new problems to the normal operation of the grain depot. The main problem is how to keep track of the quality changes of the grain in each warehouse. The grain is affected by temperature, humidity and other factors. , fever, mildew, insect damage, etc. may occur. At the same time, in the process of grain storage, the control of grain level is essential. At present, ultrasonic sensor height measurement, capacitive sensor height measurement, heavy hammer method height measurement, radar height measurement, etc. are currently used in China to measure the height of materials (grain) in the warehouse and facilitate management. [0003] In the current industrial level measurement in China, capacitive level sensors are more widely use...

AI Technical Summary

Problems solved by technology

But it still has some shortcomings and deficiencies that affect its range of use and measurement accuracy

The main disadvantage of capacitive level sensor is: its capacitance is generally very small, only tens to hundreds of pF, or even only a few pF, environmental changes will affect the change of capacitance, parasitic capacitance and distributed capacitance are very sensitive to it Influence, non-linearity of output characteristics [7]

In short, if some improvement and development are not made to the capacitive level sensor, its scope of use and measurement accuracy will be limited.

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