Material position detection system and method

Abstract

The invention discloses a material position detection system, which comprises a to-be-detected container for accommodating a detected material; the capacitance detection line is attached to the surface of the container to be detected; the adapter plate is fixed on the container to be detected, is provided with a radio frequency connector, and is electrically connected with the capacitance detection line to form a capacitance sensitive part; the signal processing circuit comprises a single chip microcomputer electrically connected with the radio frequency connector, and the single chip microcomputer obtains capacitance sensing information through the radio frequency connector and calculates and processes the capacitance sensing information to obtain height information of the measured material. The material height sensor can adapt to containers with different boundary dimensions, and the characteristics of low cost, easy expansion, non-invasion and batch deployment of the material height sensor are realized.

Description

technical field [0001] The invention relates to the technical field of material position sensing, in particular to a material position detection system and a material position detection method. Background technique [0002] In industrial applications, product raw materials are generally stored in storage tanks, and the feeding system is increasingly automated, which can gradually pump the raw materials in the storage tank to the mixing tank for production operations as the production process progresses. Therefore, in order to To continue production, it is necessary to detect the amount of remaining materials in the storage tank and add them in time. [0003] In order to realize the detection of the remaining amount of materials in large-scale storage tanks, especially in the case of sealed containers and non-transparent containers, it is very difficult to carry out the remaining amount detection manually; in addition, for the existing equipment to add material remaining amou...

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Problems solved by technology

[0005] Among them, the float mechanical switch contains moving parts, which has the problems of mechanical life and large volume, and is not suitable for dry powder height monitoring; the current probe can only realize the fixed height detection of conductive liquid, and there is electrolysis, which is not conducive to Stability of medium composition; optical sensors are susceptible to interference by steam and dust, and if installed outside the container, they can only be used on containers that are transparent to specific wavelengths, and common reflective and shading sensors can also only achieve single-point Detection of the presence or absence of materials; for ultrasonic sensors and microwave radars, there are certain requirements for the reflection characteristics of the measured medium, and due to the low coupling degree and attenuation caused by the outer wall of the container, it is usually impossible to install outside the container, and the cost is high

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