RU2369069C1 - Checkrow planting - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: planting method implies control over the seed cluster placement. Laser beams are generated at the field section edges perpendicular to the device movement direction and parallel to the soil surface. The beams are the alignment reference points for distancing. The beams activate and deactivate an optical device mounted on a drilling machine. The optical device is used to measure the travel of the drilling machine and is connected to the drilling machine electronic control unit. The control unit in its turn is managing the activation of a seed feeder of the drilling machine sections by an electrical circuit. The seeds are supplied at the moments when the distance between the drilling machine and the alignment reference point is multiple of the specified seeding interval. In the course of operation the control unit memory saves the distance between the place of the last seed feeder actuation of the drilling machine sections and the alignment reference point in the drilling machine travelling direction. Then the control unit activates the seed feeder of the drilling machine sections at the said distance in the beginning of moving in the next sector.

EFFECT: invention allows for the decrease of labour content and increase the accuracy of placing the seed clusters in the field in the square corners.

1 dwg

Description

The invention relates to agriculture, in particular to methods of sowing.

There is a method of sowing using a square-nesting seeder by forming furrows and planting seeds in them with the formation of nests according to the signals of magnetic impulse sensors interacting with ferromagnetic dimensional tracker [1].

The disadvantage of this method is the impossibility of multiple use of dimensional track markers located on the soil surface and their large number.

The closest is the method of ultrasonic control of seeders during square-nesting sowing, which consists in the fact that ultrasonic pulses of a certain frequency and duty cycle emitted by the device mounted on the seeder are used. These pulses are reflected from the resonant amplifier, again captured by the same device and actuate the actuator at those times when the distance between the seeder and the resonant reflector is equal to or a multiple of the specified distance between the sockets [2].

The disadvantage of this method is the lack of directivity of radiation and reception, which leads to significant errors during sowing.

The objective of the present invention is to reduce the complexity of the method of sowing and increase the accuracy of placement of nests of seeds on the field at the corners of the squares.

The problem is achieved by the fact that along the edges of the field, perpendicular to the direction of movement of the unit and parallel to the soil surface, laser beams are generated, which are the basis for counting distances, which activate and deactivate the optical device mounted on the seeder, which measures the distance traveled by the sowing unit and is connected with an electronic control device seeder, which in turn, by means of an electric circuit, controls the activation of the actuator for feeding seeds of the seeder sections, at those moments when the distance between the seeder and the distance reference base is a multiple of the specified sowing step, and also stores in its memory the distance from the place of the last actuation of the seed section actuator to the reference base in the direction of the seeder movement and then turns on the seed section feed mechanism at this distance at the beginning movement on the next rut.

The drawing shows a diagram of a square-nest seeding.

Before sowing (see the drawing), laser beams are generated at the beginning and at the end of the headland along the edges of a plot of field of arbitrary length L, which are the basis for counting distances. In this case, the lines of action of the laser beams are perpendicular to the direction of movement of the seeder and parallel to the surface of the soil. At the beginning of the first rut, when the seeder crosses the line of action of the laser beam, the optical device 1 mounted on the seeder is activated, which begins to determine the movement of the seeder. The optical device 1 transmits the measurement results of the seeder movement to an electronic control device (not shown) via circuit 2. In this case, at the time when the seeder moves a predetermined sowing step t, the electronic control device drives the seed supply actuator 3 via an electric circuit 3 seeder sections that eject portions of seeds into the furrows and form nests on the same transverse line. At the end of the first rut, when crossing the line of action of the laser beam, the optical device 1 is turned off. In this case, the electronic control device remembers the distance x from the last actuation of the actuating mechanism for feeding the seeds 3 to turning off the optical device 1. Moreover, the condition x <t is fulfilled.

Next, the seeder makes a technological turn and begins to move in the opposite direction along the second run. In this case, the inclusion of the optical device 1 occurs according to the scheme described previously. With further movement of the seeder to a distance x, the value of which is stored in the memory of the electronic control device, the electronic control device includes an actuator for feeding seeds 3 of the seeder. Sowing of a portion of seeds into the furrow occurs, forming nests on the same transverse line. After that, the electronic control device sends signals to the actuator feed the seeds 3 through the distance of step t.

When reaching the line of action of the laser beam at the end of the second rut, the electronic control device turns off the optical device 1. Next, the cycle repeats. Due to this, the nests are located throughout the field on one transverse line, which ensures square-nesting seeding.

Information sources

1. A.s of the USSR No. 103878, class A01C 7/04, 1955.

2. A.s of the USSR No. 127497, class A01C 7/04, 1960 - prototype.

Claims (1)

The method of square-nest sowing, including electromagnetic control of the placement of seed nests, characterized in that along the edges of the field, perpendicular to the direction of movement of the unit and parallel to the soil surface, laser beams are generated, which are the basis for counting distances that activate and deactivate the optical device mounted on the seeder, measuring the distance traveled by the sowing unit and connected with an electronic control device of the seeder, which in turn controls the by activating the actuator for feeding the seeds of the seeder sections, at those moments when the distance between the seeder and the reference base of the distances is a multiple of the specified sowing step, and also saves in its memory the distance from the place of the last actuation of the actuating mechanism for feeding the seeds of the seeder sections to the reference base in the direction of movement of the seeder and then includes the mechanism for feeding the seeds of the seeder sections at this distance at the beginning of the movement on the next rut.

Images