Potato leaked seeding detection and bolt type reseeding device electric control system based on AVR single chip microcomputer

Abstract

The invention discloses a bolt type reseeding device electric control system of a potato planter and belongs to the field of farm electrification. The potato leaked seeding detection and bolt type reseeding device electric control system comprises a power circuit, a man-machine interface circuit, and a detection circuit, wherein the power circuit is composed of a vehicle-mounted battery 12V power supply, an indicator circuit (1) of the vehicle-mounted battery 12V power supply, a digital stabilized voltage power supply chip and an output indicator circuit (2) of the digital stabilized voltage power supply chip, the man-machine interface circuit is composed of a manual reset button (3), a manual striking test button (4), a potato detecting link infrared function detecting lamp (7) and an LCD1602 display circuit (9), and the detection circuit is composed of a potato detecting link (5) and a locating link (6). A potato complementing execution part receives 10ms-long potato complementing pulses sent by the qd end of the single chip microcomputer (8). The 10ms-long potato complementing pulses go through a solid relay (13). About 5A currents flow through a striking electromagnetic coil. A potato striking iron bar moves forward for about 50mm under the thrust action of the electromagnet and pushes a potato complementing block into a preset position. Then, the iron bar returns to the original position under the pull force action of a spring (10). Thus, the action of one time is completed. In the system, (8) is system control CPU. The system solves the problems of leaked potato detection and reseeding of a chain spoon type potato seeder.

Description

Technical field: [0001] The invention relates to a missed sowing detection and replanting technology of a potato planter, which belongs to the field of agricultural electrical automation. Background technique: [0002] With the continuous expansion of the potato planting scale and industrial scale in my country and the gradual upgrading of the industrial level, the mechanization rate of potato planting is continuously increasing. However, most of the potato seeders used in China at this stage are simple mechanical seeders. There are more serious leakage phenomenon. On the one hand, missing seeding is a relatively common phenomenon in agricultural planting. With the emergence of the concept of precision agriculture, missing seeding detection and compensation planting technology has become a very active research direction in this field. On the other hand, due to agricultural production operations The irregularity of the object and the harshness of the working environment make ...

AI Technical Summary

Problems solved by technology

In 2004, based on the AT89S51 single-chip microcomputer, Zhao Baitong of Shandong Agricultural University designed and produced a set of potato missed-seeding detection and automatic potato replenishment system consisting of stepping motor, photoelectric sensor, compensating seed metering device, seed box and compensating seed delivery tube. The system theory is well conceived, but on the one hand, the problem of when to detect missing seeds has not been clearly resolved; on the other hand, the drive and control of the stepping motor is difficult, which greatly limits the speed of potato replenishment and cannot meet the needs of the system. Requirements for real-time work

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