SU1049943A1 - Device for multicell alarm signalling - Google Patents

Abstract

A DEVICE FOR MULTIPLE ALARM ACCOUNT ALTERNATION, containing. signaling cells, each of which is. made of a sensor, a first memory element and a first indicator, the first output of which is connected to the first power supply bus and the first output of the second indicator, the first sensor output is connected to the first input of the first memory element, the second power supply bus is connected to the reset button the second INPUT of the first memory element of each alarm cell and with the first input of the second memory element, the first output of the first memory element of each alarm cell is connected to the corresponding input of the OR element, Vt The other sensor outputs are combined, so that, in order to expand the application area of the device, the first and second one-shot and switch are inserted into it, and the first and second elements of the delay are inserted into each alarm cell. And, the first and second counters, the first output of the first memory element is connected to the first input of the first counter, the output of the first element, the output of which is connected to the first input of the second counter, the output of which is connected to the first input of the first counter. By the second input of the second element I, the output of which is connected to the second output of the first indicator, the second output of the first memory element is connected to the second input of the second element I, the second input of the first memory element is connected to the second input of the first counter, ka, the output of the second element pa It is connected to the second output of the second indicator, the output of the OR element is connected to the third input of the first counter of each signaling cell and the second input of the second memory element through the first one-shot, the first power supply bus connector The first output of the switch, the second output of which is connected via the second 4 one-shot to the second input of the counter of each alarm cell, the third output of the switch is connected to the second input of the first element AND of each signal cell, the second terminals of the power supply.

Description

The invention relates to automation and may be Unused for multipoint alarm systems with a large number of monitored parameters: A device is known. It contains an acknowledgment button, alarm cells for the number of contacts of process sensors, each of which contains a sensor contact and a signal lamp, connected with first and second power supply tires. The use of a known device allows one to indicate the first emergency signal and determine the cause of the accident ij. However, this device does not provide for the indication of subsequent alarms and, thus, does not allow to determine the course of the emergency process. The closest to the technical description of the essence is a device for multipoint alarm, containing a cell: a localization, each of which is made of the first and second memory elements, the first and second indicators, the first and second keys and the sensor, the first output of which connected to the first input of the first memory element, the first output of which is connected to the first input of the second memory element, the first output of which is connected to the control input of the first key, the output of which through the first indicator below Connected to the first power supply bus, the second output of the first memory element is connected to the control input of the second key, the output of which is connected via the second indicator to the first power supply bus, the third output of the second memory element of each alarm cell is connected to the corresponding input of the element OR, the output of which is connected to the input of the pulse generator, to the power input of the first element NOT and to the input of the second element NOT the output of which is connected to the second input of the second lementa a memory, oscillator output is coupled to a control input of the third switch, whose output is connected to the input power of the second switch, each cell signaling, yield first member is coupled to the input time switches. the output of which is connected to the first input of the third element NOT, the output of which is connected to the second output of the sensor of each alarm cell, the second bus of the power supply is connected to the power input of the second element NOT to the power input of the third element NOT, to the power input of the third key, to the power input of the fourth key and through a reset button connected to the power input of the dongle key, to the second input of the first memory element, to the second input of the Second memory element of each cell; signaling, to the first vivod of the closing contact of the button for detecting the zone to the first pin of the disabling button. blinking and to the first input of the third memory element, the first output of which is connected to the control key input of the fourth key, the output of which is combined with the output of the third key, the second output of the closing contact of the zone detection button is combined with the output of the third element HBj the second output of the blinking shutdown button is connected to the second input of the third ami element, the second output of which is connected to the second input of the third element NOT 2. However, the known device does not allow to determine the order of alarms and, moreover, azom can not determine the nature of the process flow, which narrows the field of application of the device. The purpose of the invention is to expand the field of application of the device. . The goal is achieved in that a device for a multi-point emergency alarm has a signaling cell, each of which is made of a sensor, an itepBOrp memory element and the first i-thyearn, the first output of which is connected to the first bus of the power supply and the first output of the second indicator, the first output of the sensor connected to the first input of the first memory element, the second power supply bus through a reset button connected to the second input of the first memory element of each alarm signaling loop and to the first input of the second the memory element, the first output of the first memory element, each signaling cell is connected to the corresponding INPUT of the OR element, the second sensor outputs are combined, the first and second single-oscillators and the transducer are entered, and the delay element is entered into each alarm cell, the first and second emitters are And, the first and the second counter, the first output of the first memory element through the delay element is connected to the first input of the first counter, the output of which is connected to the first input of the first element I, the output of which is connected to the First input of the second The second counter, the output of which is connected to the first input of the second: Element I, whose output is connected to the second output of the first indicator, the second output of the first memory element is connected to the second input of the second element And, the second input of the first memory element is connected to the second input of the first counter , the output of the second memory element is connected to the second output of the second indicator, the output of the OR element through the first one-shot is connected to the third input of the first counter of each calibration unit and to the second input of the second memory element, in-and the power supply bus is centered with the first output of the switch, the second output of which Ch15ere the second one-vibrator is connected to the second input of the second; /; each alarm cell counter | 1: Y and the third switch output is connected to the second input of the first TL element of the cag alarm cell, the second sensor leads are connected to the second power supply iuHMe. l

The drawing shows the electric circuit of the proposed irsa device.

The device contains signaling cells.1, each of which yields from a memory element 2, sensor 3, delay elements 4, a counter:: 3: And 6 elements And 7 and 8, amplification; 9 ms of value and indicator 10, element OR 11 one-shot 12 and 13, ment 14 memory, amplifier 15 ms c reti, indicator 16, reset button 17 and switch 18.V

The operation of the work is done in the following way. ; ,, - / ..,; , , - .: In the initial position, the contacts of the sensors 3 are open, the elements 2 "and 14 of the memory and the counters 6 are in the july position, the indicators 10 and 16 are turned off, the switch 18 is in the zero position.

In the event of an accident, the contacts of the sensors 3 close the circuit in any sequence.

When the contact of sensor 3 is closed, the signal n is sent: and the memory element (,; which turns on, giving a signal. Permission to the FROM element, and through the OR element 11 gives a pulse to the one-vibrator 12. The latter turns on the memory element 14 and gives a pulse to the counting counter input 6. After this, through an ele ment; 4 delays (a signal of prohibition on the response of counter 6 arrives,

which then does not change its state in the pulses from the one-shot 12. The memory element 14 switches the power through the amplifier 15 and the alarm 16 to an alarm, which signals that an emergency has occurred. From the output of counters

The 6 binary code stored in them, through the elements AND 7, on which the authorizing level is transmitted from the switch 18 to the input, is fed to the input of the counters 5 in the reverse code. Thereby, the process of storing the order of operation when the contact of the sensor 3 is closed ends. When another sensor 3 is triggered, the operation of the circuit is similar to that described with the exception that the counter 6 by impulse from the one-shot 12 does not change its state.

After Rbnaru

0 the controller can set the order of emergency situations by switching the switch; vopodatel 18. This removes the enabling signal of the matching circuits from the inputs: elements 5 and 7. By switching switch 18, the operator sends pulses to the input of the one-shot 13, which in turn - feeds pulses to the counting inputs of counters 5, increasing. ;

0 per unit binary code written to them. the binary code in the counters 5 becomes equal to the code with all units through the elements and 8 is fed to the amplifier

5 The indicators, including the indicator 10, FIXING the display of the sensor i 3 in accordance with the switch number ..:; -, -, -, - .-, -:

technological indicators .10

The 0 contacts of which did not close, do not light up, since the prohibiting level is fed from the memory element 2 to the corresponding elements of AND 8.

If necessary, re-injecting and rerunner 18 is transferred to the zero position, while allowing the transfer of binary information from the counters b through the elements

7 on the stack 5 and the process of viewing the order of occurrence of emergency situations can be repeated. To return the device to its original position, press the reset button 17.

Claims (1)

. MULTIPOINT ALARM DEVICE containing alarm cells, each of which is made of a sensor, a first memory element and a first indicator, the first output of which is connected to the first bus of the power source and to the first output of the second indicator, The first sensor output is connected to the first input of the first memory element , the second bus of the power source through the reset button is connected to the second input of the first memory element of each alarm cell and to the first input of the second memory element, the first output of the first The memory of each alarm cell is connected to the corresponding input of the OR element, the second sensor leads are combined, which is due to the fact that, in order to expand the field of application of the device, the first and second one-shots and a switch are introduced into it and a delay element is introduced into each alarm cell, the first and second AND elements, the first and second counters, the first output of the first memory element through the delay element is connected to the first input of the first counter, the output of which is connected to the first input of the first AND element, the output of which is connected to the first input of the second counter, the output of which is connected to the first input of the second element And, the output of which is connected to the second output of the first indicator, the second output of the first memory element is connected to the second input of the second element And, the second input of the first memory element is connected to the second input of the first counter, the output of the second memory element is connected to the second output of the second indicator, the output of the OR element through the first one-shot is connected to the third input of the first counter of each alarm cell and to the second input of the second memory element, the first bus of the power source is connected to the first output of the switch, the second output of which is connected through the second one-shot to the second input of the second counter of each alarm cell, the third output of the switch is connected to the second input of the first element And of each alarm cell, the second sensor leads are connected to the second bus of the power source.