CZ304360B6 - Circuit arrangement of a central control unit of animal cooling apparatus - Google Patents

Abstract

The circuit arrangement of control unit of animal cooling apparatus of the present invention comprises a temperature comparator (2) having its input connected to a temperature sensor (3) and having its output connected to one input of an evaluation circuit (7). The circuit arrangement further comprises a trigger circuit (5) having its input connected to at least one movement detector (4) and having its output connected via a timing circuit (6) to the second input of the evaluation circuit (7), whereby said evaluation circuit (7) output is connected to a switch for controlling an electromagnetic valve (9). The timing circuit (6) output is connected to an interlocking circuit (10) having its output connected to the input of the timing circuit (6) for extended engaged condition thereof. The electromagnetic valve (9), the temperature comparator (2), the trigger circuit (5), the timing circuit (6), the interlocking circuit (10), the evaluation circuit (7) and the switch (8) are connected to a power supply unit (1).

Description

Connection of the central control unit of the animal cooling device

Technical field

The invention relates to the connection of a central control unit for an animal cooling device, in particular cattle.

BACKGROUND OF THE INVENTION

The control unit, described in the Czech patent application PV 2006 -764 and protected by the Czech utility model UV 17896 (PUV 2007-19062), enables an automatic individual way of applying water to the body of animals to cool them at high ambient temperatures minimizing water consumption and waterlogging and waste water accumulation in stables. The unit is powered by a power supply, connected to a temperature comparator inside the unit, which via a pulse from a temperature sensor is connected to a solenoid valve and a motion detector in the animal cooling area. connected to the timer and blocker. This solution applies water to the animal body only in its presence under the nozzle. Since one unit controls a maximum of 2 sprinkler nozzles, a significant number of these control units must be installed in the stables in order to treat as many animals in the herd as possible. This imposes a significant investment cost on the acquisition of the cooling device. As an alternative to individual control of the water application process, central control units control all nozzles in a single row. These units are controlled on the basis of the temperature and time when the solenoid valve switches to the water application control at regular intervals after reaching the activation temperature. A drawback of the current central cooler control units is the application of water even when animals are not present at the spraying area due to eg milking, manure rushing and the like. This leads to waterlogging of floors or pastures, increasing wastewater volume and increasing inefficient water consumption.

SUMMARY OF THE INVENTION

These drawbacks are overcome by the wiring of the central control unit of the animal cooling device according to the invention, which comprises a comparator whose output is connected to a temperature sensor and whose output is connected to one input of the evaluation circuit. It further comprises a trigger circuit to which at least one motion detector is connected and whose output is connected via a timing circuit to a second evaluation circuit input, the evaluation circuit output being connected to a solenoid valve control switch, and a blocking circuit connected to the timing circuit output. the output of which is connected to the input of the timing circuit for its blocking, and further the solenoid valve, temperature comparator, trigger circuit, timing circuit, blocking circuit, evaluation circuit and switch are connected to a power supply.

The circuit according to the invention is further characterized in that the motion detector is formed by an infrared motion PIR sensor.

The circuit according to the invention is also characterized in that the control of the solenoid valve is automatic and non-contact.

The principle of the central control unit according to the invention thus consists in the central control of the process of cooling the animals in the housing or outdoor housing after the activation temperature has been reached, but only in the presence of a group of animals detected by at least two thermal sensors. The advantage is that water is applied to the animals in a targeted manner, i. only at times

The presence of animals in the stables or in a free-housing area does not result in increased waterlogging of the stables or pastures, an increase in wastewater volume and inefficient water consumption, which is very significant.

According to the wiring according to the invention, the central control units are supplied from a power supply and connected to a temperature comparator inside the unit which via a pulse from the temperature sensor is connected to an electromagnetic valve and at least two motion detectors in the stables or free housing that gives the signal to the timing circuit. It controls, via the evaluation circuit together with the temperature comparator, the switch of the water solenoid valve into the cooling space, and at the same time the timer switches the blocker in the blocking circuit, which by return pulse blocks the water from starting for a predetermined time.

The wiring of the central control unit according to the invention is suitable for cooling animals, such as cattle, inside buildings as well as in open-air runs and also in zoos. Operation is simple, reliable and easy to use. While maintaining the basic maintenance rules, operation is essentially trouble-free.

In the accompanying drawing, FIG. 1 shows a circuit diagram of a central control unit according to the invention.

The following example illustrates the central control unit according to the invention without limiting it in any way. The involvement was successfully tested in the stables of the Research Institute of Animal Production, v.v.i.

Examples

Example 1

The central control unit supplied from source I measures the ambient temperature and compares it to a preset value by means of the temperature comparator 2 inside the unit. When the set activation temperature, as measured by the temperature sensor 3, is exceeded, the temperature comparator 2 signals one of the conditions for triggering the sprayer solenoid valve 9. A second condition for the activation of the solenoid valve 9 is the detection of multiple simultaneous movements of animals in the stall area or at a free housing location provided by motion detectors 4, in particular motion infrared sensors PIR. This information is collected in the trigger circuit 5. This signals the timing circuit 6, which controls the sprinkling time, which is adjustable over a certain time range. The signal from the timing circuit 6 and the temperature comparator 2 are two necessary conditions that are collected by the evaluation circuit 7 which opens the solenoid valve 9 via the controlled timer 8. At the same time the signal from this switch 8 goes to the blocking circuit 10. for a predetermined adjustable time. The end-of-block signal is output back to the timing circuit 6.

Industrial applicability

The invention solves an automatic central method of applying water to the body of animals to cool them at high ambient temperatures in order to minimize water consumption, waterlogging of floors and pastures and the accumulation of waste water in the stables. The operation of the central cooling unit is simple and reliable.

Claims (3)

PATENT CLAIMS Wiring a central control unit for an animal cooling device, characterized in that it comprises a comparator (2), the output of which is connected to a temperature sensor (3) and whose output is connected to one input of the evaluation circuit (7), further comprising a trigger circuit ( 5), to whose input at least one motion detector (4) is connected and whose output is connected via a timing circuit (6) to the second input of the evaluation circuit (7), the output of the evaluation circuit (7) being connected to the switch (8) for control of the solenoid valve (9), furthermore, a blocking circuit (10) is connected to the output of the timing circuit (6), the output of which is connected to the inlet of the timing circuit (6) to block it, and a solenoid valve (9); 2), the trigger circuit (5), the timer circuit (6), the blocking circuit (10), the evaluation circuit (7) and the switch (8) are connected to the power supply (1). Connection according to claim 1, characterized in that the motion detector (4) is formed by an infrared motion PIR sensor. Connection according to claim 1, characterized in that the control of the solenoid valve (9) is automatic and non-contact.