RU2399197C2 - Method and apparatus of planning irrigated land - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: method of planning of irrigated land includes a pre-leveling towards laser reference plane created by the laser transmitter by moving on the section of the gliding device with a raised working body, and measuring the current sensor marks towards the cutting edge of the working body, processing information on relief with the definition of the average of the measured altitude grades and conducting of planning the site with planning device without rearrangement of the laser transmitter. Photos are taken by cross-rectilinear movement of gliding device, then the arithmetic averages of the measured elevations in each half of cross the straight-line passes and marks of the edges of the site are calculated, and then the layout of the site is carried out with the calculated values. Device for planning of irrigated land, which includes planning device containing a base frame, supporting wheels with distometer, the working body and the device with a photodetector of the laser radiation and the sensor of height measurement. In addition it contains a computing device, whereby the arithmetic mean value of the measured elevations connected to the sensors of height and path is calculated.

EFFECT: method and device can improve productivity during the preliminary survey by the planner cross route and reduce the number of its passages on the site.

2 cl, 3 dwg

Description

The invention relates to agriculture and can be used in the planning of irrigated land.

A known method of planning irrigated land and a device for planning irrigated land [1]. The known method includes preliminary vertical shooting relative to the laser reference plane created by the laser transmitter, by moving along the plot of the planning device with the working tool raised to a height H from the ground and measuring with the microprocessor device the current elevations of the photodetector hi relative to the cutting edge of the working body, processing relief information with determination of the arithmetic mean value hcp of the measured elevations hi, setting the photodetector to a height of Hp = hcp + H and p Conducting site planning with a planning device without rearranging the laser transmitter.

A device for planning irrigated land, including a planning device containing a base frame, support wheels with a path sensor, actuating cylinders, a working body, an electro-hydraulic device and a movement mechanism with a laser photodetector and a sensor for measuring its height, a microprocessor device, the inputs of which are connected to altitude and track sensors, and a laser transmitter.

The disadvantage of this method and device is the low productivity of the planning device during the preliminary survey due to the movement of the planning device in the area in parallel passages with a shooting step of 20 m

The aim of the invention is to increase the performance of the planning device during the preliminary survey due to the cross route of movement of the planning device and reducing the number of passages in the area.

This goal is achieved by the fact that the method includes preliminary vertical shooting relative to the laser reference plane created by the laser transmitter by moving along the plot of the planning device with the working tool raised to a height H from the ground and measuring with the microprocessor device the current marks of the photodetector hi relative to the cutting edge of the working body , processing information about the relief with the determination of the arithmetic mean value hсp of the measured elevations hi, installing a photodetector to the height Нр = hсp + H and planning the site with a planning device without moving the laser transmitter, the survey is performed by cross-rectilinear movements of the planning device first from one corner on the first side of the section to the midpoint of its second parallel side and from this point to the second corner on the first side of the plot and then from one corner on the second side of the plot to the midpoint of its first side and from this point to the second corner on the second side of the plot, then calculate the average rifmeticheskie Hcpj values measured altitude hi marks made on each half of straight passages and cross mark truncations and embankments Δj = Hcpj-hcp, and then carried layout planning device portion by moving it from the areas calculated in the calculated truncations embankments zone.

A planning device for implementing this method, comprising a planning device containing a base frame, support wheels with a path sensor, actuating cylinders, a working body, an electro-hydraulic device and a moving mechanism with a laser photodetector and a sensor for measuring its height, a microprocessor device whose inputs are connected to altitude and track sensors, and a laser transmitter, characterized in that it is equipped with a computing device whose inputs are connected to a microprocess weed device and altitude and track sensors.

The invention is illustrated by drawings. Figure 1 shows the longitudinal profile of the segment Sj traveled by the planning device to determine the elevations of sections and embankments, figure 2 is a survey diagram, figure 3 is a location diagram of sections I, embankments II and zones of zero work III.

The proposed method consists of the following operations. The laser transmitter is installed on the site and forms a laser reference plane (figure 1). Then, a preliminary vertical survey of the microrelief relative to the laser plane is performed using a planning device with the working body raised to a height N. When the planning device moves along the irregularities of the site, all photodetector movements equal to the current elevations hi are automatically recorded and stored in the memory of the microprocessor device, to which they are simultaneously transmitted and signals from altitude and track sensors are recorded.

The survey begins with the first rectilinear passage of the planning device to a distance S from angle 1 on the first (left) side of the plot to the midpoint 2 of its second (right) parallel side (Fig. 2). Next, the planning device makes from this point 2 a second straight passage with length S to the second corner 3 on the first side of the site. Then, after an idle passage from angle 3 to angle 4, the planning device makes a cross third straight passage from angle 4 to midpoint 5 and from it a fourth cross passage to corner 6. The step of measuring elevations is ΔS.

In the process of moving the planning device, information about the terrain is processed. After passing each rectilinear distance S with the help of a computing device, the arithmetic mean values Hcpj of the measured elevations hi on the interval Sj = 1 / 2S are determined. Such calculations are performed on all four cross-rectilinear passages taken survey 1-2, 2-3, 4-5, 5-6 according to the formula (figures 1 and 2):

,

,

where hi are the elevations on the segment Sj,

n is the number of elevations on the segment Sj.

After completing the survey, the computing device determines the arithmetic mean mark hcp for all 4 passes by the expression:

,

,

where m is the total number of elevations along 4 passes.

The calculated arithmetic mean is the design mark during subsequent planning. Further, the computing device determines the elevations of the cuts and embankments in the centers of the conventional rectangular zones Δj into which the entire section is divided (Figs. 1 and 3), according to the formula:

Δj = Hcpj-hcp.

The calculated value Δj with the + sign (plus) is the cutoff point, and with

the sign - (minus) - the place of the embankment, and the zero value - the place of zero work, where the layout is not carried out. The calculated elevations and locations of the cut zones, embankments and zero work zones are displayed on the display screen of the microprocessor device. This allows you to outline the route of movement of the car during planning.

After installing the photodetector at a height of Нр = hcp + Н, the site is planned by the planning device in the mode of automatically maintaining the photodetector on the laser plane using an electro-hydraulic device according to the instructions of the microprocessor device. When moving, the planning device cuts off the soil in the cut zones, transports it to the embankment zones, and the soil is dumped there. Cutting and filling of soil under design marks are carried out in automatic control mode. At the beginning of work, soil from the cut-off zone with the highest Δj value is transported to the nearest embankment zone. If the volume of soil in the cutting zone exceeds the volume of soil in the zone of the nearest dumping, then excess soil is transported to another filling zone. If there is a lack of soil in the embankment zone, soil is removed from another cutting zone. After each passage made by the planning device, lighthouse strips remain on the site, which are a guideline for subsequent passes. In this case, individual irregularities with decreases in the cutting zones and unevenness with increases in the embankment zones are eliminated during the planning process along the lighthouse strips.

The proposed method and device of irrigated land can improve the productivity of the planning device during the preliminary survey due to the cross route of movement of the planning device and reducing the number of passes through the site.

Information sources

1. Patent for invention No. 2240681 "Method for planning irrigated lands and a device for planning irrigated lands", Bull. No. 33, 2004.

Claims (2)

1. A method of planning irrigated lands, including preliminary vertical laser shooting of the earth’s surface by moving along a plot of a planning device with a working body raised from the earth’s surface and measuring current elevations of the photodetector, processing terrain information with determining the arithmetic mean of the measured elevations and planning the area with a planning device , in which the survey is made by cross rectilinear movements of the planning device, while the survey begins with the first rectilinear passage of the planning device from the corner on the left side of the plot to the midpoint of its right parallel side, then from this point the planning device makes the second rectilinear passage to the second corner on the left side of the plot, then after an idle passage from this point to the corner on the right side of the plot, the planning device makes a cross third straight passage from the corner on the right side to the midpoint on the left side and from it the fourth cross passage to another corner to the right portion side more calculated mean values of the measured elevation taken on each half of rectilinear cross section passages and the edges of marks and then carried plan section from the calculated values. 2. The device for planning irrigated land for implementing the method according to claim 1, which includes a planning device containing a base frame, support wheels with a path sensor, a working body and a device with a laser photodetector and a height measuring sensor, while it contains a computing device, by which the arithmetic mean values of the measured elevations are calculated, connected to the altitude and track sensors.

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