Method and device for measuring grain loss spatial distribution of combine harvester

Abstract

The invention relates to a method and device for measuring grain loss spatial distribution of a combine harvester. The method comprises the following steps of: providing an array type sensor; mounting the array type sensor at a position of the combine harvester with loss to be measured; converting impacting force of seed, short stalk and light impure materials to the surface of the sensor into an electric signal; providing a signal regulating circuit to process the signal provided by the array type sensor in real time; distinguishing the signals of the seed from other material signals; pulse-counting; providing a single-chip processor to count the loss amount of each array unit based on the value in pulse counting, and calculating the grain loss spatial distribution information based on the unit size and the distribution information of the array type sensor; providing a display device to receive the grain loss spatial distribution information through a serial port; and displaying the information in real time. By use of the method and the device for measuring grain loss spatial distribution of the combine harvester, the grain and grass can be effectively distinguished, the grain loss spatial distribution information can be obtained, and quantitative monitoring of the grain loss in real time can be realized.

Description

technical field [0001] The invention belongs to the technical field of on-line detection of precision agricultural machinery and equipment, and relates to an intelligent detection device for a combine harvester, in particular to a method for measuring grain loss distribution of a combine harvester and a measuring device thereof. Background technique [0002] When the combine harvester is working in the field, various grain losses will inevitably occur. An important principle in the use requirements of the combine harvester is to increase the forward speed of the implement while ensuring the minimum grain loss, so as to maximize the production efficiency of the combine harvester. In order to measure the grain loss, the method of manually observing the grain on the ground is usually used in China at present, or the artificial method is used to collect the discharge of the separation mechanism, the discharge of the cleaning mechanism, and the grain entering the granary through ...

AI Technical Summary

Problems solved by technology

On the one hand, the above method is limited to the types of sensitive materials and cannot greatly increase the upper limit of the measured impact frequency, thereby reducing the measurement accuracy; on the other hand, it can only obtain the total amount of grain loss within the sensor measurement range, but cannot obtain the loss space within the measurement area Distribution

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