Annular electrode and carbon brush triggered dibbler seed taking position detection method

Abstract

The invention relates to a method for detecting the seed taking position of a dibbler triggered by an annular electrode and a carbon brush. The dibbler mainly structurally comprises the annular electrode and the trigger carbon brush. The device is characterized in that the annular electrode is fixedly mounted on a main shaft of the dibbler and synchronously rotates along with the main shaft, and the annular electrode is provided with a protruding part in the horizontal direction and corresponds to a suction hole of a seed taking disc of the dibbler in position; and double rows of carbon brushes are horizontally arranged on the outer end cover of the dibbler side by side. When the protruding part of the annular electrode in the horizontal direction rotates to the contact position of the carbon brushes on the inner side and the outer side, an electrical conduction loop is formed between the inner side triggering carbon brush and the outer side triggering carbon brush, the outer side carbon brush is connected to a 5V low-voltage direct-current power source, the inner side carbon brush jumps from a low level to a 5V high level, and a rising edge triggering signal is generated. According to the method, the seed taking state of the dibbler can be detected at a designated position, the problem that empty seeds and two adjacent suction holes of a seed taking disc are identical in detection logic and cannot be effectively distinguished is effectively solved, meanwhile, a physical position triggering mechanism is used, and the detection accuracy is improved. The self-adaptive detection of the dibbler at different operation speeds is realized, and the detection accuracy and reliability can be improved.

Description

Technical Field

[0001] This invention relates to a method for detecting the seed-taking position of a seed-seeding device triggered by a ring electrode and a carbon brush, belonging to the field of intelligent monitoring of seed-seeding devices. Background Technology

[0002] The key to precision seeding technology is accurate sowing of single seeds in a single hole. Currently, there are the following problems when detecting the seed-taking status of a single seed-taking device: when the seed-taking disc picks up a single seed, an effective change signal is generated due to the presence of the seed; when the seed-taking disc does not pick up a single seed, no effective change signal is detected due to the lack of a seed as a detection medium. Furthermore, the "empty seed" state when no seed is picked up by the suction hole has the same detection logic as when no seed is picked up between two adjacent suction holes, making it impossible to effectively distinguish between successful seed picking and empty seed states. This restricts the development of the seed-taking position status detection industry in precision seeding technology. Summary of the Invention

[0003] This invention proposes a method for detecting the seed-taking position of a seed-taking device triggered by a ring electrode and a carbon brush, aiming to solve the industry bottleneck problem that existing technologies cannot effectively detect the seed-taking position of air-suction seed-taking devices.

[0004] This invention relates to a method for detecting the seed-taking position of a seeder by synchronizing the position of a ring electrode and triggering with a carbon brush. The method mainly comprises a ring electrode and a triggering carbon brush. Its key features are: the ring electrode is fixedly installed on the main shaft of the seeder and rotates synchronously with it; the ring electrode has a protruding part in the horizontal direction that corresponds to the position of the seed suction hole on the seeder's seed-taking disc; the carbon brushes are arranged in a double row, horizontally side-by-side, installed on the outer end cover of the seeder; the connection is as follows: the inner carbon brush maintains contact with the circumferential surface of the ring electrode, and the outer carbon brush maintains contact with the horizontally protruding part of the ring electrode; the inner carbon brush is connected to a 5V low-voltage DC power supply, and the outer carbon brush is connected to the input port of the detection system; its working logic... The key feature is that when the seeder rotates, it drives the annular electrode to rotate synchronously. When the horizontally protruding part of the annular electrode rotates to the position where the outer and inner carbon brushes simultaneously contact each other, an electrical conduction circuit is formed between the inner and outer trigger carbon brushes. The outer carbon brush changes from a low level to a 5V high level, generating a rising edge trigger signal. The system starts the seed-taking position detection function every time it receives the rising edge signal. This method can detect the seed-taking status of the seeder at a specified position, effectively shielding the problem that the detection logic between two adjacent suction holes of the seed-taking plate is the same and cannot be effectively distinguished due to empty seeds and seed trays. At the same time, the physical position trigger mechanism is used to achieve adaptive detection of the seeder at different operating speeds.

[0005] Compared with existing technologies, the ring electrode position synchronization and carbon brush triggering mechanism adopted in this invention can adapt to different operating speeds of the seeder. Traditional detection cannot distinguish between empty seeds and structural intervals between adjacent seed collection positions, both of which exhibit the same detection logic. This ring electrode corresponds to the seed collection hole position synchronization of the seed collection disc, and the triggering method adopts electrical conduction triggering. Detection is only performed at the determined seed collection position, shielding the detection positions between adjacent suction holes. This synchronization triggering mechanism can adapt to different operating speeds of the seeder without the need for speed compensation, and can provide a reliable technical means for seed collection position detection of the seeder. Attached Figure Description

[0006] Figure 1 This is a simplified structural diagram of a seed-taking position detection method for a seed-seeding device triggered by a ring electrode and a carbon brush.

[0007] Figure 2 This is a simplified diagram illustrating the voltage level changes of the inner and outer carbon brushes during the operation of the seeder.

[0008] Figure 3 This is a simplified diagram illustrating the system testing process.

[0009] Figure 4 This is a schematic diagram illustrating an application scenario of a seed-taking position detection method for a seed-seeding device triggered by a ring electrode and a carbon brush.

[0010] In the diagram: 1-ring electrode, 2-horizontal protrusion of ring electrode, 3-outer carbon brush, 4-inner carbon brush, 5-seed tray, 6-suction hole of seed tray of seeder, 7-fixing nut, 8-outer end cover of seeder, 9-fixed plate, 10-carbon brush fixing bracket, 11-main shaft sleeve, 12-main shaft bearing, 13-moving duckbill, 14-seed tray, 15-main shaft of seeder, 16-main plate. Detailed Implementation

[0011] The following is in conjunction with the appendix Figure 1 , Figure 2 , Figure 3 and Figure 4 The structural principles and implementation schemes of the present invention will be described in detail.

[0012] This invention relates to a method for detecting the seed-taking position of a seed-seeder triggered by a ring electrode and carbon brush. Its structure mainly consists of 1-a ring electrode, 2-a horizontally protruding part of the ring electrode, 3-an outer carbon brush, 4-an inner carbon brush, and 10-a carbon brush fixing bracket. Its working characteristics are as follows: 1-the ring electrode is fixedly installed on 15-the seed-seeder main shaft and rotates synchronously with it; 2-the horizontally protruding part of the ring electrode corresponds to 6-the position of the seed-taking plate suction hole of the seed-seeder; 3-the outer carbon brush and 4-the inner carbon brush are horizontally mounted side-by-side on 8-the outer end cap of the seed-seeder using the 10-carbon brush fixing bracket; the connection relationship is as follows: 4-the inner carbon brush maintains contact with the inner circumferential surface of 1-the ring electrode; 3-the outer carbon brush maintains contact with the horizontally protruding part of 2-the ring electrode; 4-the inner carbon brush is connected to a 5V low-voltage DC power supply; and 3-the outer carbon brush is connected to the input port of the detection system.

[0013] The working process of this invention is as follows: When the seeder rotates, it drives the 1-ring electrode to rotate synchronously. When the horizontal protrusion of the 2-ring electrode rotates to the position where the 3-outer carbon brush and the 4-inner carbon brush are in contact at the same time, an electrical conduction circuit is formed between the 4-inner trigger carbon brush and the 3-outer trigger carbon brush. The 3-outer carbon brush changes from a low level to a 5V high level, generating a rising edge trigger signal. The system starts the seed position detection function every time it receives the rising edge signal, realizing the detection of the seed position of the seeder. This effectively shields the problem that the detection logic between two adjacent suction holes of the seed tray is the same and cannot be effectively distinguished when there are empty seeds. At the same time, the physical position trigger mechanism is used to realize adaptive detection under different operating speeds of the seeder, which can improve the detection accuracy and reliability.

Claims

1. A method for detecting the seed-taking position of a seed-seeding device triggered by a ring electrode and a carbon brush, the structure mainly consisting of a ring electrode and a triggering carbon brush, characterized in that: The annular electrode is fixedly installed on the main shaft of the seeder and rotates synchronously with it. The annular electrode has a protruding part in the horizontal direction, which corresponds to the position of the seed suction hole of the seed tray of the seeder. The carbon brush adopts a double row of carbon brushes, which are horizontally and side by side installed on the outer end cover of the seeder. The connection is as follows: the inner carbon brush maintains contact with the circumferential surface of the annular electrode, and the outer carbon brush maintains contact with the horizontally protruding part of the annular electrode. The inner carbon brush is connected to a 5V low-voltage DC power supply, and the outer carbon brush is connected to the input port of the detection system. The working logic is as follows: when the seeder rotates, it drives the annular electrode to rotate synchronously. When the horizontally protruding part of the annular electrode rotates to the position where the outer and inner carbon brushes are in contact at the same time, an electrical conduction circuit is formed between the outer and inner trigger carbon brushes. The outer carbon brush changes from a low level to a 5V high level, generating a rising edge trigger signal. The system starts the seed position detection function every time it receives the rising edge signal. This method can detect the seed-taking status of the seeder at a specified position, effectively shielding the problem that the detection logic between two adjacent suction holes of the seed tray is the same and cannot be effectively distinguished when there are no empty seeds. At the same time, the physical position trigger mechanism is used to realize adaptive detection under different operating speeds of the seeder, which can improve the detection accuracy and reliability.

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