SU1663565A1 - Device for checking power consumption - Google Patents

Abstract

The invention relates to electrical measuring equipment and can be used to determine the power consumption schedule. The aim of the invention is to increase the reliability of the device. The goal is achieved by introducing microcalculators 1, second trigger 4, second, third, and fourth elements 7, 8, 9, and sensor 10. In the stack register of microcalculator 1, the number 1 is pre-recorded (or the number corresponding to the price of 1 revolution of the counter disk 11) , the program of the microcalculator 1 is entered into the program memory. The measurement starts with the command "Start" on the single input of trigger 4, and the signal from its single output opens element 7 and starts timer 2. From the first output of timer 2, the signals go through received time interval ΔT measurement. From the second output of timer 2, the synchronization signals follow with a period shorter than the period followed by the pulses of the sensor 10 connected to the counter 11. Each turn of the disk of the counter 11 corresponds to one pulse at the output of the sensor 10. The signals from the output of the sensor 10 through the open element And 7, trigger 3 , element 6, multivibrator 5 and element 9 are input to the addition of the calculator 1. At each turn of the disk of the counter 11, the register X is increased by 1. After the time interval ΔТ from the first output of timer 2, the signal through the element 8 is fixed sieves team started mikrokalkul torus 1 of the program. In this case, the contents of register X are entered into register Z, register X automatically zeroes, and the measurement of power consumption occurs in the second interval, at the end of the second interval, data from register X is transferred to register Z. Further measurements occur in a similar way. The end of the measurement is determined by the signal from the third output of timer 2, which sets trigger 4 to the zero state. With the exception of electromechanical units, an increase in the reliability of the device is achieved. 1 il.

Description

ABOUT

with s ate about

The output of timer 2 synchronization signals follow with a period shorter than the period followed by the pulses of sensor 10 connected to counter 11. Each revolution of the disk of counter 11 corresponds to one pulse at the output of sensor 10. Signals from sensor 10 through an open element I 7, trigger 3, element 6 and multivibrator 5 and element 9 are fed to the addition input of the microcalculator 1. With each turn of the disk of the counter 11, the contents of register X increase by 1. After the time interval At from the first output of timer 2, the signal through element 8 enters Mandate Start The invention relates to the field of devices that measure and record power consumption modes.

The purpose of the invention is to increase reliability.

The drawing shows the block diagram of the device.

The device contains a programmable microcalculator 1, for example, MK-61, timer 2, the first and second triggers 3 and 4, the multivibrator 5, the first to fourth elements And 6–9, respectively, the sensor 10 and the electric energy counter 11.

The output of the meter 11 of electrical energy is connected to the input of the sensor 10, the output connected to the first input of the second element I 7, the second input of which is connected to the single output of the second trigger 4 and the input of timer 2.

The third output of timer 2 is connected to the zero setting input of the second trigger 4, a single setting input of which is connected to the Start bus.

The first output of timer 2 is connected to the first input of the first element And b, the second input connected to the single output of the first trigger, a single installation input of which is connected to the output of the second element And 7. The output of the first element And 6 is connected to the input of the multivibrator 5, the output of which is connected to zero the installation input of the first trigger 3 and the second input of the fourth element I 9, the first input and output of which are connected to the output and input of the key + microcalculator 1, the input and output of the program start key of which are connected to

la work microcalculator 1 according to the program. At the same time, the contents of register X are entered in register Z. Register X automatically zeros, and the measurement of energy consumption occurs in the second interval; at the end of the second interval; data from register X is sent to register Z. Further measurements are similar. The end of the measurement is determined by the signal from the third output of timer 2, which sets trigger 4 to the zero state. With the exception of electromechanical units, an increase in the reliability of the device is achieved. 1 il.

output and the second input of the third element And 8. The second output of timer 2 is connected to the first input of the third element And 8. The device operates as follows.

In the initial state, the program of the microcalculator 1 is stored in the program memory of its operation, and in the stack registers (Y, Z, T) the number 1, the first and second triggers 3 and 4

respectively, set to zero, the sensor 10 is connected to the counter 11 of electrical energy. At each turn of the disk of the counter 11, a pulse signal appears at the output of the sensor 10.

The measurement process begins after the start command is issued to the single installation input of trigger 4. The trigger 4 is set to one, and

the signal from its single output opens element I 7 and starts timer 2. From the second output of timer 2, the signals go at intervals of the received measurement time At, for example, 5, 10 or 30 minutes (during

maximum of the power system), or after 1 h (when determining the daily power consumption schedule). The pulse duration is determined by the time the C / P command starts (the start of the program) into the microcalculator 1. From the first output of timer 2, the signals go with a period of less than the pulse of sensor 10. The common signals from the first and second outputs of timer 2 are shifted by the execution time of the program operation after the arrival of the S / P command, and the signals from the first output are delayed relative to the signals from the second output.

The signal from the third output of timer 2

determines the entire measurement time, e.g.

24 h when determining the daily load schedule. This signal is in phase with one of the signals from the second output of timer 2.

The signal from the output of the sensor 10 through the open element And 7 is fed to a single installation input of the trigger 3, at the same time on its single output is set the permitting potential, which opens the element And 6,

Through the open element AND 6, the pulse from the first output of timer 2 triggers multivibrator 5. The pulse from the output of the multivibrator 5 sets the trigger 3 to the zero position and the element 6 closes. This pulse opens the element And 9, And the input signals of the + key through the element And 9 arrive at its output, in the microcalculator 1 the contents of the registers X and Y are added. At each addition operation, the contents of the register X are increased by the number 1. After a time interval At the measurement, for example, after 0.5 h, the second output of timer 2 opens the signal AND 8 and the output signals of the C / P key through the AND 8 input to its input, while the micro calculator 1 executes the first part of the program, starting from zero addresses.

The program of work is presented in table. 1. The contents of the register X are transferred to the first register of the microcalculator 1, i.e. the measurement result in the first time interval is stored in the first register of the calculator 1.

The measurement in the second interval is carried out similarly, and after time At, this information is recorded in the second register. The number of intervals is determined by the type of microcalculator 1. The MK-61 microcalculator has 15 addressable memory registers, the last (16th) measurement result is stored in register X, and a half-hour maximum is detected for 8 hours.

When determining the daily load graphs, 24 measurements are necessary, and the number of registers in the MK microcalculator is 61, along with register X 16.

However, the number of measurements can be increased, for example, twice. For this purpose, the results of the odd measurements will be stored in the four higher digits, and even in the four lower digits. The MK-61 microcalculator has eight decimal places.

Then in the first register the results of the first and second measurements will be stored, in the second register the results of the third and fourth measurements, respectively. Information is copied from register X into memory registers after each even interval. The program of work in this mode is presented in Table. 2, which allows measurements at 30 intervals, and according to the program table. 3 at 32 intervals.

Claims (1)

The end of the measurement is determined by the signal from the third output of timer 2, which sets trigger 4 to the zero state. The measurement results in the microcalculator 1 are presented in the form of the disk speed of the electric energy meter 11. The price of one turn of the disk is determined by the technical characteristics of the meter 11 and the transformer ratio of the current transformer, through which the meter 11 is usually included in the load circuit. Apparatus of the Invention A device for monitoring energy consumption, comprising an electrical energy meter, a timer connected to the first output of the first element I, the second input connected to the single output of the first trigger, and the output to the input of a multivibrator whose output is connected to the zero setting input of the first trigger , the second element And, characterized in that, in order to increase reliability, a programmable microcalculator, a second trigger, a third and fourth element And, and a sensor, input m connected to the output of the counter, and the output to the first input of the second And element, the output connected to the single installation input of the first trigger, and the second input to the timer input and the single output of the second trigger whose single input is connected to the Start bus, and zero — with the third output of the timer, the second output of which is connected to the first input of the third element I, the second input and output of which are connected respectively to the output and input of the command start button of the microcalculator program, input and output of the key with The ports of which are respectively connected to the output and the first input of the fourth element I, the second input of which is connected to the output of the multivibrator. Program 1. Note: xP1xPe - commands to transfer the contents of register X to registers 1e, corresponding to time intervals from 1 ... 15 Cx - the command to reset the register X. C / P is the end of program execution command. Program 2 Note: Phe is a data transfer command (number 10,000) from register a to register X (and from register X, measurement data is transferred to register Y). x is a command to multiply the contents of the chiU register, the result of the multiplication is stored in register X (the measurement result in register X is shifted four bits to the left) and the number 1 is sent from the stack to register Y. Program 3 Note VP - command input preparation order. 4 is the order of the number (104). Command VP 4 shifts the number in the register X four times left