Single bus communication-based grain moisture measurement chip

A single-bus, chip technology, applied in the field of grain moisture detection, can solve problems such as time-consuming, high cost, and difficult to guarantee product consistency, and achieve the effect of overcoming high cost, low cost, and accurate measurement

Inactive Publication Date: 2019-03-08
北京中科银河芯科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional grain moisture detection mostly removes the moisture in the grain directly through drying or chemical methods, and detects the absolute moisture content of the sample. Although the detection accuracy is high, it is time-consuming.
Traditional capacitive moisture detectors are mainly cup-type. When testing

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  • Single bus communication-based grain moisture measurement chip
  • Single bus communication-based grain moisture measurement chip
  • Single bus communication-based grain moisture measurement chip

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[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0015] The present invention provides Figure 1-3 The chip shown is a single-bus communication chip for measuring grain moisture. This chip is similar to the temperature measurement cable commonly used in grain storage. It can be installed and measured in a distributed manner in the grain storage. The overall measurement is composed of chip 4 and external measurement tube shell. And the cable is composed, the chip 4 is placed in the oute...

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Abstract

The invention discloses a single bus communication-based grain moisture measurement chip. The chip is arranged in outer measurement tubes, the outer measurement tubes comprise a first outer measurement tube and a second outer measurement tube, a cable electrically connected with the chip penetrates through the first outer measurement tube and the second outer measurement tube in sequence, the first outer measurement tube is used as an anode, the second outer measurement tube is used as a cathode, the chip comprises a core data processing unit, a power management unit, a moisture sensor core, atemperature sensor core and an EEPROM storage unit, and the core digital processing unit is respectively connected with a first register, a second register, a moisture sensor processing unit, a 64-bit chip ID, signal anti-interference and ESD. The single bus communication-based grain moisture measurement chip can measure moisture of multiple points in a bin accurately, further, the chip is smalland low-cost, integrates temperature and moisture and calibration functions, and is suitable for large-area use.

Description

technical field [0001] The invention belongs to the technical field of grain moisture detection, and in particular relates to a single-bus communication chip for measuring grain moisture. Background technique [0002] Moisture in grain is divided into free water and bound water according to its physical properties. Bound water is a molecule adsorbed in grain cells or in the molecular structure of grain. It is formed through chemical action and has nothing to do with the detection of grain moisture content. Free water refers to the moisture condensed in the capillary and molecular gap inside the grain particles, which is formed by physical adsorption. Grain moisture detection is to detect free water in grain. When the moisture content of the grain is too high, the grain becomes unstable, which can easily cause heating of the grain pile, mildew of the grain, and the breeding of bacteria and pests, which have a great impact on the quality of the grain. When the moisture conte...

Claims

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Application Information

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IPC IPC(8): G01N27/22
CPCG01N27/223
Inventor 郭桂良
Owner 北京中科银河芯科技有限公司
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