SU1716172A1 - Warning device - Google Patents

Abstract

The invention relates to signaling means in the mining, mining and other industries, including in communication collectors of underground structures, in particular to multipoint alarms with individual light. and a common backup light and sound warning. The purpose of the invention is to improve the reliability of the device in terms of underground mine or communication collector. The alarm device comprises a power supply unit 1; connected through button 2 of automatic checking and removing a signal, a group of sensors 9 with the first and second inputs of the line break control unit b, also via disconnecting contacts that duplicate the contacts of the sensors, with the information inputs of the light signaling unit and the control unit 12, where the control the input of the control unit is connected to the power supply unit through the duplicate contacts of the sensors, element OR 14, the Start button 18 with its shunt contact and the common alarm re-activation unit 19, and the power input of the control unit with coupled to the power supply unit 23 via the lock key. The output of the control unit is connected to the input of a common alarm indicator 16. The device operates in monitoring and blocking modes. The modes are carried out by switching the contacts of the relay 10 and buttons 2, 5, 18, 22 and the key 23. 1 sludge. (Ls

Description

10-1

The invention relates to signaling means in the mining, mining and other industries, including communal collectors of underground structures, in particular, to multipoint alarms with individual light and common backup light and sound alerts.

Devices are known that provide multipoint signaling of technological processes and burglar alarms of various objects.

However, they all have common drawbacks, for example, the integrity of the communication line from the sensors to the central information panel is not monitored and in the event of a line break, the device does not provide an alarm at all for the monitored object, and these schemes do not provide integrity checks communication lines, i.e. general operability of devices, since the circuits are built on the principle of an open contact of the sensor in a normal operating state.

A device for multipoint signaling is known, comprising a power supply unit, signaling cells with memory elements made on electric relays, sensors, a general sound signal control relay, individual light indicators, a general sound signaling device, a light signaling check button, and an audible signal confirmation button .

The disadvantage of this device is that its circuit is made only on one electric relay with a significant number of contact connections, which, with a large number of monitored objects, increases the size of the device and reduces its reliability, and there are no memory elements of individual light signals in the circuit. , which significantly limits the functionality of the device.

The closest to the present invention is a signaling device consisting of a power supply unit, a first and second group of sensors, an individual light signaling unit, control units for a general sound signaling device (by the number of sensor pairs), a general sound signaling device, an OR element and a reset key, each of the common audio alarm control units contains a significant number of logic elements from which a complex memory circuit is built.

The disadvantages of the device also include the introduction of the 2nd group of sensors on each monitored object, due to which the design of each control unit has become much more complicated, and the introduction of a group of additional logic elements leads, in addition to complicating the scheme itself, to an increase in its dimensions and, consequently, its cost. .

In addition, the introduction of a separate control unit for each pair of sensors also leads to a significant increase in the cost and complication of repair and maintenance.

The purpose of the invention is to improve the reliability of the device in terms of underground mine or communication collector.

The goal is achieved by introducing into the device an automatic check button, sensors made in the form of opening contacts, a line break control unit with memory elements in the form of a self-blocking electric switch, each of which contains a duplicate, contact sensor, OR element, Start button, a repeated block switching on a general alarm, power and light indicators and a lock key, as well as connecting the output of the power supply unit via an automatic check button and opening contact points with the first inputs of the memory elements of the line break control unit, the second inputs of which are connected to the power supply unit through the reset button of the light signal, as well as the power supply unit output connections via the corresponding duplicate contacts of the electrorelay sensors of the memory elements to the input elements The start is connected to the input of the reclosing unit of a general alarm signal, which is common to its blocking relay and electronic time relay, the closing contact of the blocking relay bypasses the button Start, and the output of the electronic time relay is connected to the control input of the control unit, the information inputs of which are combined with the inputs of the light signaling unit and connected to the corresponding backup contacts of the electrical sensors of the memory elements of the control unit,; then the output of the power supply unit is connected to the light indicator of the power supply and through the closing contact of the lock key to the light indicator of the lock, and through sequentially connected disconnecting contacts of the reset key and the lock key to the power supply of the block control, the output of which is connected to the input of the general alarm unit.

The introduction of an auto-test button, sensors with disconnecting contacts, a line break control unit, an OR element, a start button, a general alarm re-start unit, light indicators and interlock keys leads to a significant increase in the reliability of the device. . .

The drawing shows a block diagram of the alarm device.

The alarm device consists of the power supply unit 1, the output of which through the automatic check button 2 and the disconnecting contacts 3-1 of the sensor group 3 is connected via a communication line 4 and through the light signal reset button 5 to the first and second inputs of the line break control unit 6, simultaneously the inputs of the memory elements 7, and the input of the light signaling reset signal through the diode 8 and the resistor 9 is fed to the winding of the relay 10, the output of which is grounded, when activated, the contacts 10-1 close and the contacts 10-2 open, associated with all information inputs of both the light-signaling unit 11 and the control unit 12, consisting of a series of control signal forcing elements 13, made in the form of parallel RC-chains connected by an OR 14 element, the output of which is connected to the control signal the input element of the memory element 15, the output of which is connected to the input of the block 16 by a general emergency signaling signal, and the signal of line break from the output of the element OR 17 through the Start button 18 goes to the block 19 to re-enable the general alarm signal containing the relay 20 s. by a pull contact 20-1 and an electronic time relay 21, the signal also passes through a reset key 22 and a lock key 23 connected in input and output with a power indicator light 24 and with a lock light indicator 25, respectively, all the outputs of all indicated blocks and indicators grounded.

The device works as follows.

Preparation for work. When the mains voltage is turned on, the power indicator light 24 turns on, power supply unit 1 generates the necessary constant voltage for powering the device, all light indicators of the light signaling unit 11 lights up, a general alarm indicator 16 is activated (a beep sounds and a light panel lights up). To set the device into working condition (control mode), the reset key 22 is opened, the sound signal is turned off and the light is extinguished, then the light button 5 is pressed to remove the light signal, connecting to the power supply the windings of all electric switches 10 that close the contacts 10-1 (self-blocking ) and open contacts 10-2, at the same time all goes out

light indicators of the light signaling unit 11, thus the device is brought to its original operating state (monitoring mode).

An example of a single sensor. With

0 opening of contacts 3-1 of sensor 3 breaks the power supply circuit of the corresponding relay 10 - power supply unit 1 - automatic test button 2 - contacts 3-1 of sensor 3 - line 4 of communication - contacts 10-1 - extinguishing

5 resistance 9 - relay 10 winding - ground, while its closing contacts 10-1 open (self-locking is removed), which fixes even a brief opening of contacts 3-1 of sensor 3, and its opening contacts 10-2 close, providing a supply circuit the indicator of the light signaling unit 11 along the circuit: - power supply unit 1 - disconnecting contact 10-2 of the corresponding relay 10 - the corresponding indicator of the light signaling unit 11 - ground and also connects a common alarm signal through the corresponding control circuit - a power unit 1 - NC

0 pin 10-2 of the corresponding relay 10 - forcing element 13 of the control signal - element OR 14 - electronic memory element 15 of the general alarm signal - general alarm indicator 16 5 earth. In this circuit, the common alarm indicator 16 is powered only at the beginning, since after charging the capacitor of the RC circuit of the boosting element 13 of the control signal, this element represents

This is an open circuit because the resistance of the indicated chain is significant, then the power is supplied through the closed contacts / self-blocking relay of the memory electronic element 15, the general alarm signal through the circuit - power supply unit 1 - key 22 Reset - lock key 23 - electronic element 15 General Alarm Memories - General Alarm 16 - Earth. Wherein

0, the buzzer sounds and the light illuminates. Opening the key 22 A reset opens the power supply circuit of the common memory electronic element 15 and thereby removes the common

5 alarm simultaneously with the Start button 18 turns on the electric switch 20 and electronic time relay 21 of the common alarm re-activation unit 19, which is powered via the start-up bypass button 18, the closing contact 20-1, the relay 20 via the circuit - power supply 1 - the corresponding disconnecting contact 10-2 - element OR 17 - closing contact 20-1 - electric switch 20 - electronic relay 21 of the common alarm reclosing unit 19 - ground. If the causes that caused sensor 3 to be triggered (opening contacts 3-1) are not eliminated, the electronic time relay 21 will emit a signal to the control input of the common memory electronic element 15 for approximately 30 minutes, as a result of which it turns on, self-locks and turns on the common the alarm indicator 16 along the circuit - power supply unit 1 - a key 22 Reset - a lock key 23 - an electronic memory element 15 of the common alarm unit of the control unit 12 - a general alarm indicator 16-earth.

If after clearing the key 22 Resetting the general alarm signal from the first activated sensor, another information input from the control unit 12 received an alarm signal from another sensor during the time required for the general alarm signal to re-enable unit 19, then the signal from the other sensor, independently from block 19, it will turn on the general alarm 16.

If the reasons for triggering the sensor 3 are not eliminated, the light signal of the light signaling unit 11 cannot be cleared by the light signal button 5, which allows the state of the sensors to be constantly monitored.

When the causes of sensor 3 are triggered, the light signal of the light signaling unit 11 is removed. (Extinguished) by pressing the light signal off button 5, since the corresponding contact 10-2 opens and the power supply of the common emergency reclosing unit 19 is also turned off. the signal, which leads to the opening of its shunt contact 20-1 and the reset of its electronic time relay 21, will reset this block to its initial state.

When the line 4 is disconnected, the device operates in the same way as opening: 3–1 sensor cycles 3.

The device provides operation in normal mode and during long-term repair or maintenance work on controlled objects (blocking mode). For this, the lock key 23 is switched to the On position, the common alarm indicator 16 is turned off, as its supply circuit is broken and the lock indicator light 25 on the circuit is turned on - power supply unit 1, lock key 23 - lock light 25 - ground . At the same time, the corresponding indicator of the light signaling unit 11 continues to indicate the object on which the work is being carried out, and signals the state of sensors at other objects. To check the entire device provided

0 automatic check button 2, pressing of which is equivalent to opening all contacts of 3-1 sensors. 3. As a result, the device will work out this effect as described above, if

5 if any channel is faulty (memory element 7, the light indicator of the light signaling unit 11 has blown), this will be reflected in block 11 as a non-altered indicator.

0 Thus, the advantage of the invention is the increased reliability of its operation in underground mine or communication collector conditions by maintaining constant monitoring of the integrity of the communication lines between the sensors and the device and the ability to test the health of the entire system using the automatic test button 2 as well as re

0 turning on the block of the general alarm signal after a certain period of time, which allows to reduce the cost of work during the operation and maintenance of the device.

5 Formula invented and

An alarm device containing a power supply unit connected to a light alarm reset button, a general alarm unit, a light unit

0 alarm, control unit, sensors and key reset, characterized in that. In order to increase reliability in underground conditions, a line break control unit with memory elements 5 by the number of lines, a common alarm reclosing unit, an OR element, a Start key, a lock key, power and lock indicators, and an automatic check button have been entered into it. while the output block

0 power supply through the automatic check button is connected to sensors interconnected in parallel, the outputs of which are connected to the first inputs of the corresponding memory elements of the monitoring unit, the outputs of which are combined and connected to the zero potential bus, the second inputs of the memory elements are connected to the reset button light signaling unit, the power supply unit through parallel connected disconnecting contacts of the elements of the line break control unit is connected to the inputs of the light signaling unit, the control unit and cient OR, whose output is connected through a switch to start block reclosing normally open contact which is connected in parallel Start key, and output block

the restart is connected to the second input of the control unit, the power supply unit is connected directly to the power indicator and through the lock key with the lock indicator and through the serially connected Reset key and lock key to the third input of the control unit.

Claims (1)

Claim An alarm device comprising a power supply connected to a light alarm reset button, a general alarm unit, a light alarm unit, a control unit, sensors and a Reset key, characterized in that, in order to increase reliability in underground workings, a control unit is introduced line break with memory elements by the number of lines, general alarm re-enable unit, OR element, Start key, lock key, power and lock indicators and automatic check button, while the output is bl the power supply through the automatic check button is connected to sensors interconnected in parallel, the outputs of which are connected to the first inputs of the corresponding memory elements of the breakaway control unit, the outputs of which are combined and connected to the zero potential bus, the second inputs of the memory elements are connected to the light alarm reset button, the unit power supply through parallel connected disconnecting contacts of the memory elements of the line break control unit is connected to the inputs of the light signaling unit, control unit and that OR, whose output via the Start key is connected to the re-start unit, the make contact of which is connected in parallel with the Start key, and the output of the re-start unit is connected to the second input of the control unit, the power supply is connected directly to the power indicator and through the lock key to the indicator blocking and through a series-connected key Reset and key lock with the third input of the control unit. 35 "