SU829006A1 - Device for automatic monitoring of agricultural machine operation - Google Patents

Description

one

The invention relates to agricultural machine building, namely, devices for automatic control of the operation of agricultural machines.

A device is known to automatically control the operation of agricultural machines, including seeding control sensors, a multichannel conversion circuit, and an alarm unit.

This device, when used on wide-span units with a large number of controlled parameters, overloads the operator with information. In addition, when the unit is stopped, the specified information disappears.

It is also known. device for automatic control of operation of agricultural machines, including control sensors, multi-channel conversion circuit containing amplifying and converting units

And the elements .pam tee, the element OR, central and additional alarm units.

 The disadvantage of this device is the lack of information about the number of violations of the technological process. Stopping the unit to eliminate every disturbance that has occurred reduces its capacity. In a number of cases, it is economically advantageous to stop the unit during the accumulation of several process disturbances.

The purpose of the invention is to increase the effectiveness of monitoring by signaling the number of violations. This goal is achieved by the fact that the device for automatic control of the operation of agricultural machines is equipped with a lock switch ICI5 with a generator, an adder and a decoder, and the contacts of the lock switch are connected to the control inputs of the memory elements and the generator whose output is connected to the second control inputs of the memory elements and reset The adder's input, to another input of which the output of the I-PI element is connected, and the adder's output through a decoder is connected to the central signaling unit.

The drawing shows the block diagram of the automatic control device for agricultural machines.

The device contains sensors 1 kOn trol connected to the inputs of the multichannel conversion circuit 2, including connected in series amplifier-conversion units 3 and memory elements 4. The outputs of the memory elements 4 through the separation capacitors 5 are connected to the inputs of the element 11II b and visual indicator-7 of the additional block 8 of the alarm. The output of the element OR 6 through cyMt-iaTOp 9 and the decoder 10 is connected to the indicators 1 - the number of violations of the central alarm unit 12.

A switch 14 is connected to the control unit, to the inputs of the generator 3 and the memory elements 4, and the output of the generator 3 is connected to the control inputs of the memory elements 4 and has encircled the input of the adder 9.

The principle of the control system, for example, when it is equipped with a seed, is as follows.

At normal.m. sowing of seeds, all sowing devices at the output of sensors 1 of the control, installed in these wires, generate pulses that are fed to the inputs of the amplifier-converting units 3 of the multichannel conversion circuit 2. At the inputs 4 of the memory 4, there is a potential of a certain value, at the outputs, the potential is equal to zero. The visual indicators 7 of the signaling unit 8 and the visual indicators 11 of the central signaling unit 12 are turned off.

When the sowing of seeds by any sowing device is stopped, there is no pulse at the output of the corresponding sensor 1 control. The potential at the output of the power conversion units 3 becomes zero. In this case, the memory element 4 is activated and the corresponding visual indicator turns on, the indicator 7 of the block

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8 alarms installed on the machine. The signal enters through the separation capacitor 5 and the element RSH 6 to the input of the adder 9. Digital

5, the signal from the output of the adder 9 is converted by the decoder 10 to a potential at one of its outputs. Included visual indicator I, corresponding to one violation.

10 central alarm unit 12, notifying the operator about the occurrence of a single violation.

When the switch 14 is turned off at the output of the generator 13 at predetermined minor intervals

time, single pulses are formed. The pulse returns the triggered memory element 4 to its original position and zeroes the adder 9. If the violation is random and seeding during this time interval is resumed, indicators 7 and 11 do not turn on again. Otherwise, the cycle described

25 previously, and signaling units 8 and 12 are included.

If another violation occurs, the corresponding memory element 4 is triggered (since all monitoring channels are in the ready state except for a fixed fault), another indicator 7 is turned on. The signal arrives at the input of the adder 9. The decoder 10 performs the conversion again formed by the adder 9 of the digital signal to the potential at the corresponding output. Indicator 11 is turned on, corresponding to two violations. In this case, the previously activated indicator is turned off.

If the mechanic has made a decision about the need to eliminate the violations, he turns on the switch 14. At the same time, the operation of the generator 13 is blocked, in addition - the 4 memory elements are blocked, i.e. their condition is fixed. The tractor driver stops the unit and, in accordance with the switched on ignitors 7 of the alarm system 8, corrects the violations.

The application of the invention will increase the efficiency of monitoring by indicating the number of violations of the technological process performed by the agricultural machine, which

will allow economically justifiable choice of the moment when the agricultural aggregate is stopped to eliminate the causes of these violations.

Claims (1)

Invention Formula A device for the automatic control of the operation of agricultural machines, containing control sensors, a multichannel conversion circuit, including amplifying and converting blocks and memory elements, an OR element, a central and Additional signaling units, characterized in that, in order to increase the control efficiency, it is equipped with a lock switch, a generator, an adder and a decoder, with the lock switch contacts connected to the control inputs of the memory elements and the generator whose output is connected to the second control inputs of the elements the memory and the zeroing input of the adder, to the other input of which the output of the OR element is connected, and the output of the adder is connected to the central signaling unit through a decoder.