Method, system and device for monitoring harvest yield of combine harvester

Abstract

The invention relates to a method, system and device for monitoring harvest yield of a combine harvester, and belongs to the technical field of agricultural machinery. The method for monitoring the harvest yield comprises the steps as follows: photoelectric signals generated by a correlation type photoelectric sensor in each time period are collected according to a set time interval in the operation time of the combine harvester, the area between the photoelectric signal transmitting end and the photoelectric signal receiving end of the correlation type photoelectric sensor is the operation area of a scraper of the combine harvester, and the correlation path of the photoelectric signal transmitting end and the photoelectric signal receiving end is perpendicular to the operation path of the scraper; for each time period, the duty ratio of a high level in the photoelectric signals is determined; according to the duty ratio, the grain harvest yield in the corresponding time period is calculated; and according to the grain harvest yield in each time period, the accumulated grain harvest yield is calculated. Whether grains exist on the scraper or not is detected through the photoelectric signals, the influence of vibration of the combine harvester during operation is avoided, and the detection accuracy of the harvest yield of the combine harvester is improved.

Description

Technical field [0001] The present invention relates to the field of agricultural machinery, particularly to a method for monitoring the amount of harvesting combine harvester, the system and apparatus. Background technique [0002] Production monitoring system grain combine harvester of precision agriculture is an important part of the system to generate yield maps or important part of the prescription map in the late. Production monitoring system for my country's construction of green, efficient and conservation-oriented field of agriculture plays an important role. Currently in the combine harvester yet sophisticated systems are used, in some models have been equipped with a small measuring device, but is limited by the production method and the measurement accuracy of the measured yield of impact, no application in small combine harvester. Therefore, production monitoring system is important for the development of intelligent technology combine harvester. [0003] Combine har...

AI Technical Summary

Problems solved by technology

[0003] At present, the production measuring device widely used on combine harvesters is based on the impulse type production measuring sensor, which is based on the force of the grain hitting the elastic plate for measurement. Affected by the vibration of the combine harvester during operation, this system has a relatively large instability and unreliability

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