CS227790B1 - Registration circuit wiring - Google Patents

Abstract

The invention solves the connection of a registration circuit for the register of physiologically or pathologically affected animals, especially dairy cows, when the changed physiological or pathological state of the dairy cows is automatically indicated, for example, by changes in the electrical conductivity of the milked milk. The connection of this invention consists in the fact that the first input terminal is connected via the first delay element to the base of a transistor, the emitter of which is connected to a common terminal, while the collector of the transistor is connected to the cathode of the thyristor, while the second input terminal is connected to the control electrode of the thyristor via the second delay element and the output element is connected to the anode of the thyristor, connected to the second supply terminal. The first supply terminal is further connected to the anode of the thyristor via a resistor. The connection of the registration circuit according to the invention can be used where it is necessary to register an electrical impulse generated in a defined time interval during another, longer pulse.

Description

The invention relates to a circuit for the registration of physiologically or pathologically affected animals, in particular in primary milk production plants, where the changed physiological or pathological state of the dairy cow is automatically indicated, for example by means of changes in the electrical conductivity of the milked milk.

The circuit for the registration of physiologically or pathologically influenced animals is (toast device, for example to automatic indicator of increase of electrical conductivity or temperature of freshly milked milk. Indicators are already installed in technological processes of milk production and full utilization of their function depends on human factor, In automatic mode, it is necessary to ensure that each indicated animal is registered only once per milking.

Even the time constant and during milking can indicate several times to the dairy cow. It is also necessary to avoid the influence of short disturbing pulses as well as the indication during milking of contaminated milk at the beginning of milking.

These drawbacks are overcome by the use of a registration circuit according to the invention. It is an object of the invention that the first input terminal is connected to the base of a transistor, the emitter of which is connected to a common terminal, via the first delaying member, while the transistor collector is connected to the thyristor cathode. a second input terminal is connected to the thyristor anode and an output member connected to the second power terminal is connected to the thyristor anode.

227 790

The connection of the registration circuit according to the invention is characterized in that during one milking cycle the dairy cow can be registered only once, while the indicator can signal a change in the physiological or pathological state of the dairy cow several times during one milking cycle »

The advantage of connection is especially its simplicity while fully ensuring the required function · as well as low power supply ·

The circuit of the registration circuit according to the invention is shown in the fattening system.

The first input terminal of the registration circuit is connected via the first delay member 3 to the base of the transistor 5, the emitter of which is connected to the common terminal 11. The collector of the transistor 5 is connected via the cathode of the thyristor 6 to its control electrode. 2 *

An output member 7 is connected to the anode of the thyristor 6, connected to the second power terminal 10 and possibly through the resistor 9 to the first power terminal 8.

Operation of the circuit is as follows: An electrical signal indicating the start of milking is applied to the first input terminal 2 and after a time delay given by the first delay member 3 the transistor 5 opens. The second input terminal 2 reads the signal from the indicator output *. or the pathologically affected dairy cow * the thyristor 6 is open after the time delay given by the second delay member 4 * The output member 7 registers a sudden increase in current when connected in series between the anode of the thyristor 6 and the second power terminal 10. terminal 8 through the resistor 9 the output member 7 is connected as an electrical potential sensor on the anode of the thyristor 6, where it registers a sudden voltage drop · the time delay of the first delaying member 3 can be advantageously adjusted to the milking time The circuit 4 is such as to avoid erroneous triggering of the circuit by a short pulse due to, for example, interference. The actual registration cycle is terminated after a signal indicating the end of milking is applied to the first input terminal JL. By changing the output state of the first delay member 3, the transistor 5 _t and thus the thyristor 6 are closed.

227 790

The connection of the registration circuit according to the invention can be used where it is necessary to register an electrical pulse generated within a defined time interval during another, longer time pulse.

Claims (2)

1. A wiring circuit comprising two delay members, a transistor, a thyristor and an output member, characterized in that the first input terminal (1) is connected via a first delay member (3) to the base of the transistor (5) whose smitter is connected to the common terminal (11), while the collector of the transistor (5) is connected by the cathode of the thyristor (6), the second input terminal (2) and the anode of the thyristor (6) connected to the thyristor control electrode (6) via the second delay member (4). ) an output member (7) connected to the second power terminal (10) is connected, 2. The circuit according to claim 1, characterized in that a first supply terminal (8) is connected to the anode of the thyristor (6) via a resistor (9).