SU969189A1 - Device for monitoring wide-cut sowing set operation - Google Patents

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery industry and can be used to control the operation of wide seeding units.

There are known devices for monitoring the work of the drill, including control sensors installed in the dream or sem wires of the seed; an amplifier signal amplification and conversion circuit; and an alarm unit installed in the cab of the tractor operator, including light and sound failure alarms and a control device for the operation of the fl alarms.

The disadvantage of these devices is the receipt of information only about the seeding system.

Closest to the proposed technical essence and the achieved result is a device for monitoring wide-range seeding units, containing seeding control sensors and a trigger sensor connected to the corresponding inputs of a multichannel conversion circuit, including signal amplifiers connected to memory elements to which the switch element is connected memory, and the adder, the outputs of which are connected to the central alarm unit, which includes a visual indicator of the number of failures, and the local unit oh alarm.

However, in the known device, the effectiveness of monitoring the operation of sowing units of various types is insufficient, since for them it is necessary to establish a different number of failures, at which the quality of the technological process will remain within the limits of agrotechnical requirements.

The purpose of the invention is to increase the efficiency of monitoring the operation of various types of sowing units.

15

The goal is achieved by the fact that the central alarm unit is equipped with a threshold device with a set number of failures, a key and a sound generator connected 20 to an audible alarm, and the input of the sound generator is connected to the output of the adder via a threshold device and a key.

The drawing shows a functional electrical circuit of the device.

The device contains seeding control V-ln sensors connected to the inputs of a multichannel conversion circuit 2, including amplifiers

30 signals connected to elements

4-4j, the memory to which the memory-switching element 5 is connected, the adder

6, the inputs of which are connected to the outputs of the memory elements, the element OR

7, the inputs of which are connected to the memory elements. The outputs of the adder are connected to the visual indicator 8 of the number of failures of the central alarm unit 9, as well as through the threshold device 10 with the setpoint 11 of the number of failures per key, 12 to the sound generator 13 connected to the audible alarm 14, the sound generator is connected to the light alarm 15, input which is connected to the output element OR. Memory element outputs are connected.

a local alarm unit 16, and the input of the memory insertion element is connected to the output of the start sensor 17.

The device works as follows.

With the power on and the nonworker on the seed unit, the start sensor 17 does not work, the enablement memory element B locks the 4-4j memory elements, so that the latter remain in the initial state, conditionally 1.

In this case, the power supply circuits of the seeding sensors are also blocked, so that the latter do not give out any electrical signals to the inputs of the amplifiers,. This prevents false triggering of the device, i.e. the device does not show the presence of seeding in its absence. Since the memory elements are in the state i, the output of the element OR 7 is in the same state, which leads to the triggering of the warning lamp 15, the sound generator 13 turned on and the sound of the warning lamp 14. At the same time block 16 local alarm, and the sumgator 6 and the indicator 8 indicates the number of failures the signal corresponding to the minimum number of idle control points. The threshold device 10 in this mode does not allow unlocking the key 12 and therefore the latter does not affect the operation of the sound generator.

Prior to the start of work, the tractor operator, on the scale of setting the number of failures, establishes the number of failures that is permissible for a given type of sowing unit, for which the quality of sowing is within the specified limit of agrotechnical requirements.

With the start of the process, the start sensor 17 activates ,, and the memory insertion element 5 unlocks the elements 4-4, the memory and the sensor power supply circuits l) - seeding so that the latter are ready to fix the seeds.

When passing through the seeds, the sensors 1 -1 | produce an electrical signal, KOfOfXiR is amplified by 3 -3Hz amplifiers and affects the memory elements so that the latter go to the opposite state as O. In this case, first, it changes to the opposite of the initial state of the output of the element OR 7, which leads to the cessation of operation of the sound 14 and light 15 signaling devices, second, to the cessation of the signaling device of the local signaling unit, and, thirdly, the transition of the indicator 8 from Kazov in the state O,. corresponding to the absence of failures in the controlled nodes

Upon termination of the seeding process in the first of the monitored nodes, the corresponding seeding sensor 1 places memory element 4 in state 1 ,. In this case, state 1 is the output of the element OR 7, the warning lamp 15 is turned on, and the sound generator 13 is operated in such a way that the alarm device 14 emits an intermittent sound signal. In addition, the memory element 4, which is in a state of 1 acting on the input of the adder 6, causes the appearance at its output of an electrical signal causing the number of failures 1 on the indicator, i.e. the control device registered one working body in which the seeding process was disturbed.

Similar processes occur when the second, third, etc. appear. permissible number of failures, i.e. in this case, only the figure of the indicator 8 of the number of failures is changed, the buzzer 14 emits a periodic beep, and the warning lamp 15 is activated.

Claims (2)

When failure among the monitored sites appears equal to or greater than the previously allowed number, threshold device 10 is triggered and opens key 12. This results in the continuous sound of the warning lamp 14, which indicates to the operator-operator that it is necessary to immediately stop the seeding process and stop the sowing unit to eliminate reasons for failure. When the seeding unit is stopped, the start-up sensor 17, through the memory activation element 5, blocks the elements 4-4, the memory in the state in which they were before stopping, i.e. in state 1, there are memory elements that prior to the stop recorded failures at controlled points, and in the state, those memory elements that did not record failures, i.e. 3anoN iHaHHe is provided with failure places on the light panel of the local alarm unit 16, its light indicators can be triggered when signals 1 from the memory element outputs arrive at their inputs. After elimination of the causes, causing failures in the operation of the sowing unit, the tractor operator restarts the sowing unit, and the operation of the monitoring device is restored. The proposed device for monitoring the operation of wide-range sowing units increases the efficiency of the control of the seeding process, as it also provides an alarm when the maximum number of failures is exceeded. This also provides an increase in labor productivity during sowing, since there is no need to stop the sowing unit at each actuation of the signal device on the central alarm unit. The expected economic effect from the propensity of the proposed control device on the wide-grip: sowing aggregates only by reducing the downtime of the latter will be approximately 150-200 rubles. Claims An operation monitoring device for wide-range seeding units comprising seeding control sensors and a start sensor connected to the corresponding inputs of a multi-channel conversion circuit including signal amplifiers connected to memory elements, and a memory insertion element connected to memory cells, and an adder whose outputs connected to the unit. Central alarm, including a visual indicator of the number of signals and a local alarm unit, characterized in that, in order to increase the efficiency of monitoring the operation of various types of sowing units, the central alarm unit is equipped with a threshold device with a set number of failures, a key and a sound generator connected to an audible signaling device The input of the sound generator is connected to the output of the adder via a threshold device and a key. Information sources, . taken into account when examining 1. USSR author's certificate No. 446249, CL. A 01 C 7/00, 1973. 2. USSR author's certificate number 829006, CL. And 01 C 7/00, 1978 (prototype).