SU1161976A1 - Signalling device - Google Patents

Abstract

A DEVICE FOR SIGNALING, containing parameter sensors, a signal comparison unit, a switch and an indicator, characterized in that, in order to increase the information content of the device, position sensors are introduced, specifying and executing encoders, a decoder and a pulse generator, the indicator is digital, the switch outputs are the driver encoder is connected to the same inputs of the comparison unit and the inputs of the decoder, position sensors through the executive encoder are connected to the other inputs of the comparison unit, the output of which By connecting the control input of the pulse generator, the decoder output is connected to the data inputs of the digital indicator of the pulse generator output is connected to the control u (A tsifryuvogo present entry indicator.

Description

with

ABOUT)

The invention relates to remote automated control systems (DAU) of the process of loading containers (silos, bins) with bulk solids, for example, bran, s lysine feed concentrates, etc., in the production of premixes and lysine. in microbiological enterprises and can also be used in enterprises of milk and milk and food industry.

The purpose of the invention is to increase the information content of the device,

The drawing shows a block diagram of a $ 1 signaling device.

The device contains a switch. 1 select the number of the loadable capacity (stopping point of the mechanism) zadachy encoder 2, decoder 3, 20 inverter) 4, a set of output reed relays 5 digital indicator 6, all matching matching elements 7, executive encoder 8, block 9 of signal comparison, output relay 25 element 10 , generator 11 pulses, sensors 12 parameters, sensors 13 position, relay 14 with contact 15, the drawing also shows the vertical contact 16 of the generator 11 of pulses jO and disconnecting 1) relay 1 7 or relay 18 turning on a conventional display (not shown).

The device works as follows.

Using the switch 1, the operator dials the tenth number of the bunker (this can be not one but several nepeKJ3ro4aTeHeH by the number of bits in the tenth number of the number). The known control scheme for turning 4G pipes and gate valves in the drawing is not shown. With the help of the driver 2, decimal digits are converted into a binary code. This code arrives at decryptor 3 of binary 45 code into decimal single code, at block 9 of comparison. At the outputs of the decoder 3, each set of input signals corresponds to one exciting output (signal 0). To affect 50 reed relays 5, the signal of the excited output is inverted by one of the inverters 4. The relay 5 supplies the ignition potential to the sign inputs of the digital indicator 6 for example, a gas discharge lamp (the number of lamps must correspond to the number of decimal places in the room). When the operator enters the capacity number and the switch 1 moves from the zero position, the relay 14 is de-energized, and its contact 15 turns on the generator 11. The contact 16 of the generator 11 starts to interrupt with the set frequency, the voltage supply circuit to the indicator cathode 6. the tanks light up flashing.

When, during the development of the task, the turning tube (or dumping carriage, etc.) becomes above the given capacity, it presses the lever of the corresponding position sensor 13). The corresponding input matching element 7 (reed) is triggered and a voltage is applied to the corresponding input of the executive encoder B. At the second inputs of the comparison block 9, the same combination voltage appears as at the first inputs from the master encoder 2 (if, of course, , the mechanism actually stopped over the capacity selected for loading). As a result, logic 1 appears at the output of block 9. Element 10 is triggered, which by its contact activates relay 17. This leads to the termination of the operation of the generator 11 pulses. The blinking of the digital indicator stops, it switches to an illumination that gives the operator information about the correct execution of the given command by the mechanism.

During loading of the selected capacity, the operator should receive a signal about its filling. This moment is determined by the ignition of the common board (not shown), which turns on the relay 18. The turn on circuit of this relay from the parameter sensor 12 is prepared by closing the contact of the position sensor 13.

The device can use relatively high voltage (220 V) in common control circuits, laid along the workshop to the sensors and having a considerable length. Within the limits of the switchboard, a low voltage of 15 V is applied, except for the discharge lamp circuits.

The proposed device, by reducing the service front of the boards and providing the operator with complete information, makes it possible to reduce the area of the shield room.

Claims (1)

A SIGNALING DEVICE containing parameter sensors, a signal comparison unit, a switch and an indicator, characterized in that, in order to increase the information content of the device, position sensors, master and executive encoders, a decoder and a pulse generator are introduced into it, the indicator is digital, outputs switches through the master encoder are connected to one input of the comparison unit and the inputs of the decoder, position sensors through the executive encoder are connected to other inputs of the comparison unit, the output of which is connected It is connected to the control input of the pulse generator, the decoder output is connected to the information inputs _{l of the} digital indicator, the output of the pulse generator 5 is connected to the control input of the digital indicator. i __ 11615