DD289686A5 - METHOD FOR COMPENSATING MEASUREMENT DIFFERENCES TO BORDER SYSTEMS, ESPECIALLY OF MACHINES - Google Patents

Abstract

The invention relates to a method for compensating Meszdifferenzen on-board systems for the control of combine harvesters, taking into account the economic balance of the overall application situation of the course of the harvest. According to the invention, the influence quantities of moisture and material mass are separately measured by sensors and offset by the on-board computer to a total value of the threshing separation activity from the combine harvester so that the loss values are filtered out in the driving speed curve and the machine is controlled taking into account all influencing factors of the course of the crop. Harvester; Board computer; Meszdifferenz; Compensation; Driving speed; Total harvest situation; Harvest loss; economy}

Description

Characteristic of the known state of the art

According to the previously known in the art solutions to compensate for differences in measurement on-board systems for controlling combine harvesters, it is common that all previous control variables capture only indirectly economic variables. For example, control of a harvesting machine after loss is a control that rates loss alone as an economic value. The risk of pre-harvest losses, a risk of outgrowth (total loss), the cost of labor, the machine load, the risk of default, the potential lost profits at fast re-sowing and drying are overlooked in this type of control but. The control after the losses is therefore only effective if previously all other interests have been checked and collected in the form of an "urgency level" of the work, after which then the control of the machine is based on the losses This would mean eg combine harvester and the controllers after losses

- high urgency = machine is at the maximum allowable losses, e.g. 1.5%, guided,

- average urgency = machine is guided at the loss value 0.6-1.0%,

- low urgency = machine is given the lowest loss value 0.2-0.4%.

The disadvantage, both by the human experience, as well as by lan calculator performed by calculation The procedure is that in the current operating situation these values do not always have to correspond to the optimum. For example: High urgency (due to crop hazards) results in control at 1.5% loss instead of 0.5%. Mathematically increases the Combine output from 10 to 16t / h. In practical operation, however, the performance increases in concrete terms

unfavorable case (eg due to a given screen overload with short straw) only from 10 to 11 t / h.

However, a performance gain of only 1 t / h justifies no more economic 1% more loss, because thereby the Total harvest situation can not be significantly improved. These conditions are also recognizable manually. But that requires a lot of experience and time. Object of the invention

The aim of the invention is to eliminate the above-mentioned deficiencies and problems, taking into account the Gesamtterntesituation in combine harvesting.

Explanation of the essence of the invention

The invention has for its object to make a novel method for balancing differences in onboard system, especially for harvesters in the harvest time, such that the direct reference variables in the combine according to the principle of the total contribution of the crop with the best economic result in the onboard computer or be realized on the machine.

According to the invention the object is achieved in that the differences in measurement of on-board systems combine harvesters caused by the inequality of the inflow via the electronic loss control sensors are filtered out to the effect that the main influencing factors moisture and throughput measured separately and with regard to the threshing separation activity in the onboard computer so be calculated that the Meßdifferenzen can be compensated for and on the various threshing of the field a combine harvester receives comparable values that allow him at any time, all relevant economic, but also z. B. ecological factors to be calculated so that the on-board computer makes a comparison of the calculated with the actual data occurring in the operation and the result of this comparison is the basis of a control of the combine after the total use situation and the resulting required economic parameters.

According to the method, the measurement results of electronic Verlustkc.ntroll- and measuring devices or on-board systems are designed comparable so that a comparable basis for the loss measurement arises, which is based on the separation activity of the machine and their calculation according to the main factors of humidity and throughput.

Direct factors in the combine harvesting according to the primacy of the total yield of the harvest are such factors as the crops, the total losses, the refining margins, the variety grading, the quality requirements, the weather, the total crop area, the machine performance characteristics, the machine failure rate, the machine stocking and the processing or drying costs considered.

According to the invention, these reference variables are used as a logical interface between personal computers and on-board computers in order to control the unavoidable differences between the calculated powers and the actual powers measured via known sensors in such a ratio that the overall economic result remains optimal. The services calculated in this way via the BC are either specified to the driver via a display for modulation or automatically directed to the harvesting machine.

embodiment The invention will be explained in more detail on a preferred selected process example. Thus, according to the method Measurement of the total moisture content, ie the moisture of straw and ears, below the feed shaft on the bottom of the trough Combine. Another measuring point is arranged for the grain moisture on the return bottom thereof. The time difference between these measurements is constant and is taken into account when entering the on-board computer. A

Further measurement of the grain moisture takes place at the Schüttlar return and is also taken into account in the time difference. The 4.

Messstello for the grain moisture is arranged under the cleaning. Measurements 1 to 4 give the humidity characteristic

of the passing goods, separated according to total moisture content and grain moisture, again.

Similarly, the density of the incoming crop> s is measured. It takes place at the intake shaft in the D / et, moment, at the Deflection of the shaft shaft and the torque of the threshing drum. Another load measurement of the shaker is provided via a profile measurement of the shaker. Measurements 5 to 8

Make a measure of the density of the run. They correspond to known solutions, biological flows in the

Combine harvester to measure. Density and humidity together form the basic values for the separation activity of the working organs of the Combine, which ultimately leads to the measured residual loss or loss of shakers and cleaning with the conventional

electronic loss gauges leads. The values measured on the shaker and the cleaning correspond to the

Dreschtrennaktivität the working organs of the combine harvester according to the respective performance characteristics of the machine in the

respective Gutart and are affected by density and humidity.

By making a separate trace in moisture of measurements 1 to 4 and density in measurements 5 to 8

It is now possible to measure the values measured on the shaker and the cleaning on the on-board computer of the combine harvester and thus filter or relate the relationship between flow rate, moisture influence and loss.

This relationship allows the steadily given as the vehicle speed increases. Nonuniformities of density and Humidity in such a way that the loss value of the electronic loss control is based on a basic value of the Separating activity of the machine can be related, which in the particular concrete situation the measure of achievement and loss

and thus brings the measure of a possible loss and thus driving speed increase with the aim of optimizing the overall economic situation.

As throughput in kilograms per second or in tons per hour on the combine realized by the driving speed

and the losses are in an opposite relationship, the abovementioned process solution is now the

Possibility to compare with the values calculated or given by the personal computer.

Claims (1)

A method for compensating for differences in measuring on-board systems, in particular combine harvesters, characterized in that the influencing variables of moisture and material mass measured separately by sensors and offset by the on-board computer to a total value of the threshing separation activity of combine harvesters such that compensated for differences, filtered out loss values in the vehicle speed profile and on a combine harvester at any time receives such comparable values to the various threshing sections of the field, which, while taking into account all relevant economic, but also biological and ecological influencing variables, arise from the on-board computer by comparing the calculated data with the data actually occurring during operation, and thus the combine under an economic evaluation Direct control of the overall harvest situation with increasing and decreasing travel speed in all relevant areas. Field of application of the invention The invention relates to a method for compensating for differences in measurement on-board systems for controlling combine harvesters, taking into account the economic balance of the total deployment of the course of the crop.