SU960609A2 - Electron device for determination of cows' mastitis - Google Patents

Description

one

The invention relates to agriculture, in particular to the definition of disease of cows with mastitis.

According to the main author. St. No. 535496, an electronic device is known for determining mastitis in cows, including measuring bridges of temperature and conductivity of milk, amplifiers, recorders of the maximum values of each measurement parameter, recorders of the highest values of temperature, conductivity, difference in conductivity of milk, as well as threshold measuring and signaling units 1.

A disadvantage of the known device is the low diagnostic accuracy, since it does not provide a determination of the degree of mastitis.

The purpose of the invention is to improve the accuracy of diagnosis by determining the degree of mastitis.

The delivered delay is achieved by the fact that in the electronic device the threshold measuring-signaling units

performed in the form of several relay elements connected in parallel with each other.

FIG. 1 shows a block diagram of the device; FIG. 2 shows an example of the execution of the measuring signaling unit;

The device includes measuring bridges of 1-4 tecture, measuring

10 conductor bridges 5-8 connected through amplifiers 9-16 with recorders 17-24 maximum values for each measurement parameter, recorder 25 at the most temperature,

15 registrar 26 of the highest conductivity value, registrar 27 of the greatest difference in the conductivity of milk, threshold measuring and signaling units 28-30, each of which is 20 as several relay elements, for example two relay elements: elements 31 and 32 connected in parallel.

The device works as follows o5. The unbalance signals from the measuring bridges 1–4 of the temperature h of the bridges 5–8 of the conductivity after amplification by amplifiers 9–16 are fed to recorders 17–24 with the maximum values for each measurement parameter.

From recorders 17-2О, signals proportional to the maximum values of milk temperature are sent to recorder 25 of the highest temperature, and from recorders 21-24, signals proportional to the maximum value of milk conductivity are fed to recorder 26 of the highest milk conductivity, as well as signals From these recorders, the recorder 27 is accessed, in which the difference between the four values of milk conductivity is recorded. Then, signals from recorders 25 of the highest temperature, 26 of the highest conductivity and 27 of the greatest difference in the conductivity of milk arrive at the threshold measuring and signaling blocks 28-30. In each of the latter, the threshold for operating the relay element 31 and 32 is different. For example, the relay element 31 is higher than that of the relay element 32, and the response thresholds of the indicated relay elements 31 and 32 are chosen such that when an animal becomes sick with a mastitis degree of three or four crosses, both relay elements 31 and 32 work. one-two crosses relay

element 31. In the absence of mastitis disease, signals at the inputs of the threshold measuring-signaling blocks 28–30 are absent and relay epementots 31 and 32 are turned off.

Thus, the operation of both relay 1X elements 31 and 32, including the I1-dicator (not shown), is heavy. Penetration of cow disease with a mastitis degree of three to four iqsecTa, the inclusion of only one relay element 31 indicates a disease of a weak degree of disease in one or two crosses, and the disabled position of the relay elements

15 31 and 32 indicate no disease.

Thus, the proposed device provides for the accuracy of diagnosis of the disease.

Claims (1)

1. USSR author's certificate No. 535496, cl. Goin 27/08. From the registrar of the most significant FIG.