SU1688126A1 - Apparatus to weigh the mass of an animal in motion - Google Patents

Abstract

The invention relates to weighing technology and can be used in devices for weighing animals in motion. The device contains a weighing platform 1 with built-in load sensors 2-5, a comparison unit 6 consisting of a comparator 8 and summation nodes 7 and 9, whose inputs are connected to the outputs of the measuring sensors 2.3 and 4.5, respectively, sensor 10 animal, sensor 11 of the final measurement cycle, sensor 12 of position of the animal on the platform, total weight adder 13, control unit 14, analog-code converter 15, reversible counter 16 and recording unit 17. The design reduces the measurement error Reni and optimize the length of the platform. 2 Il. Yo

Description

The invention relates to weighing technology, in particular, devices for weighing objects in motion, such as animals.

The purpose of the invention is to improve the measurement accuracy, optimize the length of the platform.

FIG. 1 is a block diagram of a device for measuring the mass of an animal in motion; in fig. 2 shows an example of building a control unit.

The device (Fig. 1) contains a weighing platform 1 with built-in force sensors 2-5, a comparison unit 6, consisting of a comparator 7 and two summation nodes 8 and 9, sensor 10 after the appearance of an animal, sensor 11 of the end of the measurement cycle, sensor 12 position of the animal on the platform, adder 13 full

masses, control unit 14, converter 15 analogue-code, reversible counter 16 and recording unit 17.

The control unit 14 (Fig. 2) contains a frequency divider 18, an AND 19 element, a pulse counter 20, a pulse number control unit 21, an OR 22 element, a trigger 23, an AND-NE element 24, an AND 25 element, a trigger 26, a single vibrator 27.

The outputs of the weighing platform 1 with load sensors 2, 3 are connected to the inputs of summation node 8, and the outputs of sensors 4, 5 are connected to the inputs of summation node 9, while the outputs of sensors 2-5 are connected to the inputs of totalizer 13 with a ground mass, the output of which is connected to the first input Converter 15 analog - code. the second input of which is connected to the control unit 14. Outputs

About 00

with

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Summation nodes 8, 9 are connected to the outputs of the comparator 7, the output of which is connected to the first input of the control unit 14, the second, third and fourth outputs of which are connected to the corresponding inputs of the reversible counter 16, the fourth input of which is connected to the first output of the converter 15 analog-code. The output of sensor 10 of animal appearance is connected to the second input of control unit 14, the third input of which is connected to the output of sensor 11 at the end of the measurement cycle, its fourth input is connected to output of sensor 12 of animal position, and the fifth input of control unit 14 is connected to second output of converter 15 analog - code, the sixth output of control unit 14 is connected to the first input of registering unit 17, information inputs to the mountain are connected to corresponding outputs of the reversible counter 16. Input of control unit through frequency divider 18 oedinen the first input of AND gate 19, a second input coupled to the output control unit 21, and the output to the input of the pulse counter 20, the outputs of which are connected to respective inputs of control unit 21. The second input of the control unit 14 is connected to the first input of the OR-22 element, the second input of which is connected to the output of the AND element 25 and the first input of the OR element 28, the output of which is connected to the Reset input of counter 20. The third input of the control unit is connected to the first input of the trigger 26. the output of which through the one-shot 27 is connected to the second input of the element OR 28. The fourth input of the control unit through the trigger 23 is connected to the second input of the element 24, the first inlet of the element 25 and the second input of the trigger 26, the fifth input of the control unit is connected to the second input trigger 23, and the output of the element AND NOT 24 is connected to the second input of the element I-25,

The device works as follows.

When the animal enters the zone of action of the sensor 10 of the animal's appearance, the latter gives a signal to the control unit 14, which prepares the reversible counter 16 to receive information.

The animal moves to platform 1. When the zone of the animal's position on the platform reaches sensor 2, sensor 12 triggers and issues a signal to control unit 14, which activates counter 16 in the forward code and converter 15 analog — code that converts the signal perceived by load measuring sensors 2-5 through the adder 13 of the total mass. The measurement cycle is repeated.

control unit 14, for example, 10 times, and measurement results are accumulated in the reversing counter 16,

At the end of the last measurement cycle and in the absence of a signal from comparison unit 6, indicating that the animal has not reached the optimal weighing zone, control unit 14 resets the information contained in the reversible counter to zero and the measurement process repeats.

While advancing on platform 1, the animal first loads load sensors 2 and 3 and less - force sensors 4 and 5, then it reaches the middle of the platform, and there comes a moment when there is a signal at the outputs connected in pairs to the corresponding nodes 8 and 9 summing up the load sensors 2, 3, 4 and 5 and located in pairs at the beginning and end of the platform. This indicates that the center of mass of the animal is in the middle of the platform, i.e. in the optimal measurement zone.

5 If the signals at the output of the summation nodes 8 and 9 are equal, the comparator 7 is activated and turns on the control unit 14, which, after the set measurement cycle has been completed, stops the operation of the converter 15 analog-code and leaves the information at the output of the reversing counter 16,

The animal leaves the platform and appears in the range of the sensor 11 at the end of the measurement cycle. The control unit 14 switches on the reversible counter 16 in the Return code mode and produces a new measurement cycle of the released platform.

0 When this occurs, the mass of the platform is subtracted from the total mass (animal + platform), after which the code of the number corresponding to the mass of the animal multiplied by

5 number of measurements. After the correction of the number of bits corresponding to the number of bits of the measurement cycle, the control unit 14 generates a signal to transmit a code corresponding to the mass of the animal in

0 registering unit.

Claims (1)

Apparatus of the Invention A device for measuring the mass of an animal in motion, comprising a platform with load sensors, sensors 5 of the appearance of an animal and the end of a weighing cycle, an analog-to-code converter, a control unit, a reversible counter, an adder and a recording unit, characterized in that, in order to improve measurement accuracy and optimize length platform, it is equipped with an animal position sensor on the platform and a comparator unit, including a comparator and two summation nodes, whose inputs are connected to the outputs of the respective force-measuring sensors, the outputs of the summation node are connected to the inputs of a comparator, connected to the first input of the control unit, the second input of which connected to an animal position sensor, third and fourth, respectively, with sensors for the appearance of an animal and the end of a weighing cycle, fifth to an appropriate The analog output is a code, and the outputs of the control unit with the corresponding inputs of the reversible counter, the registering unit and the analog converter are the code, while the outputs of the load sensors are connected to the outputs of the adder, which output is connected to the corresponding analog converter input — a code, one of the outputs which is connected to the corresponding input of the reversible counter, and the output of the reversible counter - with the corresponding input of the recording unit.