SU1441314A1 - Apparatus for registering electric power consumption - Google Patents

Abstract

This invention relates to a measurement technique. The device contains n counters 1, each of which includes a sensor 2 pulses. In addition, the device consists of a transmitter 12 and a receiving unit 14. The introduction of the receiver 15, the control unit 13, and in each counter 1 a key 3, a decoder 4, a pulse counter 5, a clock driver 6, a reset generator 7, a polarity selector 8 and a unit 9 power increases the reliability and noise immunity of the device. 2 Il. lO

Description

fy

four

OO

i

The invention relates to a measurement technique and can be used in electricity metering systems.

The purpose of the invention is to increase reliability and noise immunity.

FIG. 1 shows a block diagram of a device for metering electricity; figure 2 - timing charts of the device.

The device for metering electricity consumption contains n electricity meters 1 with built-in pulsers 2 pulses, n keys 3, decoders 4, n counters 5 pulses, n clock drivers 6, n shapers 7 reset, h polarizers 8, 9 power units 9, wires 10 and 11 of the line, connection, transmitter 12, control unit 13, receiving unit 14 and receiver 15, WIH the sensor inputs 2 of the pulses are connected to the outputs of the keys 3, the control inputs of which are connected to the outputs of the decoders 4, the inputs of which are connected to the outputs 5 pulse counters c, clock inputs of which are connected to outputs of clock drivers 6, reset inputs of pulse counters 5 are connected to outputs of reset drivers 7, inputs of drivers 6 and 7 are connected to first selector outputs of the polarity 8, which are also connected to inputs of power supply 9, outputs which are connected to the first wire 10 of the communication line, the outputs of the power supply units 9 are connected to the power buses of the decoders 4, the 5-pulse counters, the clock of the driver 6 and the dump drivers 7, the outputs of the sensor 2 pulses are connected to the wire One 10 of the communication line, the second outputs of the polarity selectors 8 are connected to the inputs of the keys 3, and the inputs of the polarity selectors 8 are connected to the second wire 11 of the communication line, which is also connected to the transmitter 12, whose input is connected to the first output of the control unit 13, The second output of which is connected to the first input of the receiving unit 14, to the second input of which the output of the receiver 15 is connected, the input of which is connected to the first wire of the 10th line,

five

0

five

0

five

0

five

0

five

The device works as follows.

The control unit 13 enters the following signals into the transmitter 12: during the transmission of the reset signal (Fig. 2a), a constant potential appears (Fig. 2b), at other times, corresponding to the clock intervals Tl-Tn, a sequence of pulses appears (Fig. 26) . At the second output of the control unit 13, pulses are output, which are delayed with respect to the pulses of the first output (Fig. 2c). The transmitter 12 transmits to the wire 11 of the communication line the corresponding bipolar pulses (Figure 2d). In the polarity selector 8, the signal from the communication line is divided, the positive pulses (Fig. 2g) are fed to the power supply unit 9 and to the inputs of the formers 6 and 7, which form the reset pulses (Fig. 2) fed to the Reset input of the pulse counter 5 and clock pulses (figm) arriving at the clock input of the counter 5 pulses. The power supply unit 9 smoothes the positive pulses and accumulates energy to power all the chips (Fig. 2k). The decoder 4 opens the key 3 during the corresponding clock interval, for the electricity meter 1.1 it is the interval T.1, etc., for the counter 1 .p electricity is the interval The key 3 opens and connects one end of the sensor 2 pulses through the polarity selector 8 to the line I1 of the communication line, the second end of the sensor 2 pulses connected to the wire 10 of the communication line. Thus, sensor 2

The pulses are connected directly to the communication line. At the same time, a negative pulse from the transmitter passes through the circuit: polarity selector 8, key 3, sensor 2 pulses, goes to receiver 15 and depending on the state of sensor 2 pulses (on or off), receives a discrete signal O, or 1 or if the pulse sensor 2 is analog, the receiving unit measures the level of the negative signal received. The received information (Fig. 2o, p) is gated with a signal from the second output of the control unit 13 (Fig. 2c) and recorded in the receiving unit 14, from where it goes to the output of the device (Fig. 2c),

Claims (1)

Invention Formula A device for metering electricity consumption, containing n electricity meters with built-in pulse sensors, a receiving unit, a two-wire communication line, to the first wire of which outputs of n pulse sensors are connected, which, in order to increase reliability and noise immunity, control unit, transmitter, receiver were entered, and n polarity selectors, n clock drivers, n reset drivers, n pulse counters, n decoders, and keys and n power supply units, the first output of the control unit is connected to the transmitter, to the output of which is the sub-keys the second wire of the communication line, which is connected to the n polarity selectors, the first output of the nth polarity selector is connected to the input of the nth clock shaper and to the entrance of the n-th shaper reset. the outputs of which are connected respectively to the clock input and the reset input of the nth pulse counter, the outputs of which are connected to the inputs of the nth decoder, the nth output of which is connected to the control input of the nth key, to the other input of which the second output n is connected go selector About polarity, the output of the nth key is connected to the input of the nth pulse sensor, and the second output of the control unit is connected to the first input of the receiving unit, the output of which is the output 5 of the device, and the second input of which is connected to the output of the receiver, to the input of which is connected the first device of the communication line, to which n power supply units are also connected, to the other input of the nth power supply unit the first output of the nth polarity selector is connected , the output of the n-th power supply unit is connected to the power bus of the n-th clock driver, the n-th form of the resetting body, the n-th pulse counter, and the n-th decoder.