SU788138A1 - Multi-point signalling device - Google Patents

Description

The invention relates to automation and signaling of production processes, in particular to multi-point systems for monitoring objects, and can be used in technological or emergency control by means of DATE- ⁵ CHIKOV.

Known devices for process alarms, comprising a fault signal receiving relay connected to the power bus through the make-up contact of the sensor, connected to the power bus through the diode diodes and acknowledgment and damping buttons of the fault signal, and a signal lamp connected to the power bus through the contacts of the signal receiving relay and relay of fixing the malfunction signal, the test relay is connected to the power buses via jq disconnecting contacts of the receiving relay and the relay of fixing the malfunction signal, in parallel ^ the make contact of the test relay is switched on and the make contact of the control button is connected through another make contact of the test relay and the decoupling diodes with the windings of the reception relay and the relay for fixing the fault signal [1J.

A disadvantage of the known devices is the presence of three relays per sensor, which impairs the reliability of the device, and the presence of signal lamps in the number of monitored sensors with a large number of them increases the field of presentation of information about the monitored parameters.

The closest in technical essence to the proposed device is an alarm for multi-point monitoring of an object, containing alarm cells with normally open sensor contacts connected to diodes and signal lamps connected to thyristor cathodes and to one resistor leads, other terminals of which are connected to control electrodes thyristors, sound signal 788138 lyser, pulse generator and control and acknowledgment buttons connected to the relay, each alarm cell is equipped with and the transistor, additional resistors, and an additional diode, with the transistor connected in parallel with the thyristor, the base of the transistor of each signal cell through a resistor is connected to the output of the pulse generator, the input of which is connected to the Sound signal — _{10 to} theizer and to the anodes of additional diodes of all signal cells, cathodes additional diodes are connected to a common connection point of the signal lamp, thyristor and transistor of each cell _{15 of the} alarm G2].

The disadvantage of this device is the lack of an element for memorizing a short-term signal, which makes it difficult for the operator to make decisions on the information received ₂ θ, and the presence of a signal lamp for each monitored sensor with a large number of monitored parameters increases the field of presentation of information, which entails an increase in the cost of the system — ₂₅ we, increasing its weight and labor input in manufacturing.

The purpose of the invention is to increase the reliability of a multi-point alarm device. j ₀

The goal is achieved in that the device is introduced for each group of relay signaling cells smooth light in each cell signaling introduced fifth diode, and the cell The indicator ₃₅ tion introduced additional diodes, keys and indicators call information parameters smooth light through the relay break contact the blinking light relay and the fifth diode are connected to one terminal ₄₀ of the signal receiving relay, each parameter indicator is connected to the power source through the make contact of the corresponding solid light relay, and each sensor indicator through an additional $ ₄ diode and a make contact of the corresponding signal receiving relay is connected to the corresponding information call key.

_l 50

A schematic diagram of a device for multipoint signaling is shown in the drawing.

The device contains signaling cells 1 combined in the first group, _JS signaling cells 2 combined in the second group, indication cell 3, sound signaling device 4, sensors 5 of the signaling cells of the first group, sensors 6 cells of the signaling system of the second group, key 7 for turning off the sound and blinking light , memory key 8, solid light relay 9, common for the first group with closing contact 10, blinking light relay 11, common for the first group with making contacts 12 - 14 and making contact 15, solid light relay 16 common for the second group with making contact 17, relay 18 of a flashing light common to the second group with NO contacts 19-21 and NO contact 22, multivibrator 23, key

Б Memory reset of the first group, a memory reset key of the second group, a function check key of the device, relay 27 of the signal signal cell reception of the first group with make contacts 28 - 30 and NC 31, diodes 32 - 36, relay 37 of the signal reception signal cell of the second group with make contacts 38 - 40 and NC contact 41, the first parameter indicator 42, the second parameter indicator 43, the first group information call key 44, the second group information call key 45, sensor indicators 46 and 47, diodes 48 - enter the display cell 51 and terminal 52 of the multivibrator.

The device operates as follows.

When any contact of the sensor 5, for example, related to the cell 1 of the first group, is closed, plus power sources through the opening contact 31 and the diode 33 are led to the winding of the flashing light relay 11, which is activated and the closing contact 12 starts the multivibrator 23, the contact 13 turns on the sound signaling device 4, terminal 14 connects the first parameter indicator 42 to terminal 52 of the multivibrator.

An audio signal and a flashing light of the first parameter indicator 42 provide the operator with information about the need for the first group of sensors.

After closing the contact of the key 7, turning off the sound and flashing light, the signal receiving relay 27 is activated via the sensor contact 5 and the diode 34, while the disconnecting contact 31 of this relay de-energizes the flashing light relay 11, the relay making contacts 28 and 29 is self-locking, and contact 30 prepares the enable circuit of the indicator LED 46 corresponding to the given sensor.

The opening contact 15 is closed after the relay 11 of the blinking light is de-energized and through the 3 ^ diode, contact 29 and diode 36 turn on the steady-state relay 9, the making contact 10 of which connects the first indicator 42 to the negative busbar of the power supply (even busbar).

The signal received by the alarm cell is remembered in case of opening of the contact 5 of the sensor, as indicated by the first indicator 42, which burns with a steady light. When the contact of the key 44 of the call information is closed, the indicator 46 of the sensor on the circuit through the diode 48 and the make contact 30, the relay 27 of the signal reception.

The operator receives complete information about the number of the sensor of the group of the first, which issued a signal entering cell 1 alarm.

After eliminating the cause of the signal by opening the contact of the key 24 to reset the memory of the first group, the circuit is restored to its original state.

All alarm cells 1 upon receipt of a sensor signal in them work similarly to those described.

When the contact of the sensor 6 is closed, the alarm cell 2 is activated, which is included in the second group. The circuit through the make contact 6 of the sensor, the open contact 41 and the diode is activated by a flashing light relay 18, the make contacts of which 19 to 21 include a multivibrator 23, an audible warning device 4 and a second parameter indicator 43. Further operation of the device is similar to that described when the cell 1 of the first group is triggered.

The closure of any number of sensor contacts in any group causes the indicator of this group to blink, the buzzer sounds, and after the sound and the blinking light turn off, the indicator of this group lights up evenly, the device is tested for function by closing the contact of the function test key 26, flashing relay 11 and 18 through the corresponding alarm cells 1 and 2 and indicators 42 $$ and 43 are blinking. If now, without opening the contact of the key of the 26th reset memory of the second group, to close the contact of the key 7 of the mute and blinking light, then the relay 27 and 37 receive signals in the alarm cells and relay 9 and 16 solid light. The first and second indicators 42 and 43 are lit.

If the group doesn't work though. there would be one alarm cell, the indicator of this group continues to burn with a blinking light.

The performance of the indicators 46 and 47 of the sensors is checked by closing alternately the contacts of the keys 44 and 45 of the call information.

The entire set of equipment is tested for operation. Bringing the circuit to its initial state is done by opening the contacts of the keys 24 and 25 of the memory reset.

A memory key 8 is inserted into the device so that it can operate in the mode of memorizing the signal without external interference with the presentation of information by a parameter indicator that lights up in steady light.

The proposed device can be used to signal any number of sensors, the signal is stored, and the status of all sensors is indicated by the minimum number of equipment and indicators, and all monitored sensors are combined into groups, with a common indicator for each group and with sensor indicators for the largest number in one group.

The use of such a device improves the reliability of the alarm system; it can be controlled how many suitable sensors are grouped. Information is presented on the display field of minimum dimensions, which reduces the cost of manufacture by reducing metal consumption and reducing equipment.

Claims (2)

The invention relates to the automation and signaling of industrial processes, in particular, to multipoint monitoring systems of objects, and can be used in process or emergency monitoring by means of sensors. Technological signaling devices are known that contain a power bus connected through the make contact of a sensor for receiving a fault signal, connected to the power bus through dividing diodes and buttons for acknowledging and extinguishing a fault signal, and a signal lamp connected to the power bus through the signal receiving contacts and a failure signal relay; a test relay is connected to the power rails via the disconnecting contacts of the reception relay and the failure signal relay, parallel to th test included a make contact switch, and a control button normally open contact connected through another normally open contact of the relay check and decoupling diodes with relay coils and relay receiving fixing trouble signal ij. A disadvantage of the known devices is the presence of three relays for each sensor, which degrades the reliability of the device, and the presence of signal lamps in terms of the number of monitored sensors with a large number of them increases the field of presentation of information about the monitored parameters. The closest in technical essence to the present invention is a device for alarm signaling with multipoint control of an object, containing signaling cells with normally open sensor contacts connected to diodes and signal lamps connected to thyristor cathodes and to one terminals of resistors, the other terminals of which are connected to thyristor electrodes, a sound signaling device, a pulse generator and control and acknowledgment buttons connected to the relay, an alarm cell is provided with a transistor, additional resistors and an additional diode, the transistor being connected in parallel to the thyristor, the base of the transistor of each signaling cell is connected via a resistor to the output of the pulse generator, the input of which is connected to a junction signaling device and anodes of additional diodes of all signaling cells, the cathodes of additional diodes are connected to a common point the signal lamp, thyristor and transistor connections of each f2j signaling cell. The drawback of the device is the absence of a short-term signal storage element, which makes it difficult for the operator to make decisions on the information received, and the presence of a signal lamp for each monitored sensor with a large number of monitored parameters increases the field of information representation, which entails a system multiplication, an increase in its weight and labor in manufacturing. The purpose of the invention is to increase the versatility of the multipoint alarm device. The goal is achieved by introducing an even light into the device for each group of alarm relay cells, a fifth diode is inserted into each alarm cell, and additional diodes, information call keys and parameter indicators, an even light relay are entered into the indication cell. a flashing light relay and a fifth diode are connected to one output of a signal receiving relay, each parameter indicator is connected to a power source via a make contact of a corresponding level light relay, and each sensor indicator through the additional diode and the closing contact of the corresponding signal receiving relay is connected to the corresponding information call key. A schematic diagram of the device for multipoint signaling is shown in the drawing. The device contains alarm cells 1 combined into the first group, alarm cells 2 combined into the second group, indication cell 3, buzzer 4, sensors 5 of the first alarm group, sensors 6 of the second group of alarms, key 7 of the sound and flashing light, key 8 memory, relay 9 even light, common for the first group with closing coyactu 10, relay 11 flashing light, common for the first group with closing contacts 12-14 and disconnecting contact 15, relay 16 even light common for the second group with closing named by contact 17, flashing light relay 18, common to the second group with closing contacts 19-21 and opening contact 22, multivibrator 23, 24b memory key of the first group, memory reset key of the second group, function test key 26, receiving relay 27 signal of the signal cell of the first group with closing contacts 28-30 and disconnecting contact 31, diodes 32-36; relay 37 receiving a signal of the signal cell of the second group with closing contacts 38-40 and disconnecting contact 41; the first indicator 42 enters the display cell And the second parameter indicator 43, the key 44 the call information of the first group, the key 45 the call information of the second group of sensors indicators 46 and 47, diodes 48 - 51 and. pin 52 multivibrator. The device works as follows. When any contact of sensor 5, for example, belonging to cell 1 of the first group, plus the power sources, is opened, through the opening contact 31 and the diode 33, is supplied to the coil of the flashing light relay 11, which is triggered by the closing contact 12, the multivibrator 23 starts signaling device 4, contact 14 connects the first indicator 42 of the parameter to contact 52 of the multivibrator. The sound signal and the flashing light of the first parameter indicator 42 provide the operator with information about the need for the first group of sensors. After the contact of the key 7 is closed, the sound is turned off and the flashing light is triggered, the signal receiving relay 27 via sensor contact 5 and diode 34 is triggered, and the switching contact 31 of this relay de-energizes the flashing light relay 11, the relay contacts 28 and 29 put on the pickup and contact 30 prepares a circuit for switching on the indicator 46 corresponding to this sensor. The opening contact 15 closes after the relay 11 is de-energized by the flashing light and through diode 3, contact 29 and the diode 36 switches on an even light relay 9 whose closing contact 10 connects the first indicator 42 to the negative power supply bus (flat light bus). The signal that arrives at the alarm cell is remembered in the event that the contact 5 of the sensor is opened, as indicated by the first indicator 42, which is evenly illuminated. When the contact of the information call key 44 is closed, the sensor indicator 46 lights up through the circuit through the diode 48 and the closing contact 30, the signal receiving relay 27. The operator receives full information about the sensor number of the first group, which issued a signal to cell 1 of the alarm. After eliminating the cause of the signal, opening the contact of the memory reset key 24 of the first group, the circuit is reset. All alarm 1 cells when a sensor signal arrives at a nickname work in the same way as described. When the contact of sensor 6 is closed, the alarm cell 2 is triggered, which is included in the second group. On the circuit through the sensor's closing contact 6, the opening contact 41 and the diode trigger the flashing light relay 18, the closing contacts of which 19-21 include the multivibrator 23, the buzzer 4 and the second indicator 43 of the parameter Further device operation is similar to that described when cell 1 of the first group is triggered. The closure of any number of sensor contacts in any group causes the indicator of this group to blink, trigger the buzzer, and after turning off the sound and the flashing light, the indicator of this group lights up evenly. The device is checked for functioning by closing the contact of the function check key 26, and the relay 11 and 18 flashing light are triggered through the corresponding alarm cells 1 and 2 and the indicators 42 and 43 with a blinking light. If now, do not open the contact of the key 26 for resetting the memory of the second group, close the contact of the key 7 for the sound and the flashing light, then the signal receiving relays 27 and 37 in the signaling cells and the relay 9 and 16 are working. The first and second indicators 42 and 43 are evenly illuminated. If the group does not trigger a hot alarm cell, the indicator of this group continues to blink. The operability of the sensors 46 and 47 of the sensors is checked by alternately closing the contacts of the information call keys 44 and 45. The entire set of equipment is tested for operation. The initialization of the circuit is performed by opening the contacts of the keys 24 and 25 of the memory reset. Key 8 of the memory is inserted into the device, so that it can work in a mode for remembering the signal without external interference with the presentation of information by the parameter indicator, with a steady light. The proposed device can be used to signal any number of sensors, the signal is memorized, and the status of all sensors is indicated by the minimum amount of equipment and indicators, all the monitored sensors are combined into groups, with a common indicator for each group and with sensor indicators for the greatest number in one group. The use of such a device improves the reliability of the alarm system, can be monitored by an arbitrary number of sensors grouped together. The information is presented on the minimum indication field, which makes it cheaper to manufacture by reducing the metal content and reducing the equipment. Claims An apparatus for multipoint signaling comprising sensors combined into two groups of signaling cells, each of which is made on diodes and a signal receiving relay, one output of which is connected to the contact of the sensor and four of the first own closing contact signal and the first diode with the contact of the common l of each group of memory cells of the memory reset switch, via the second diode 786138 7 with the functional check key contact, through its own normally open contact and the third signal with the flashing light relay common to each group of alarm signaling cells, the second output of the signal receiving relay is connected to the second own closing contact and through the fourth diode to the mute switch and the flashing light and the key memory, a buzzer connected to one of the closing contacts of the flashing light relay, a multivibrator connected to a |: a hymn of the closing contacts of the flashing light, and a display cell, Making a sensor-LEDs, characterized in that, in order to increase the reliability of the device, it is entered for each group of cell signaling relay smooth light in each well signaling introduced fifth diode and to the cell indicating administered pre- eight Additional diodes, information call keys and parameter indicators, relays even light through the disconnecting contact of the flashing light and the fifth diode is connected to one output of the signal receiving relay, each parameter indicator is connected to a power source via a closing contact, a corresponding level light relay and each sensor indicator through an additional diode and a closing contact of the corresponding receiving relay The signal is connected to the corresponding call key information. Information sources, taken into account during the examination 1. USSR Copyright Certificate No. 544982, cl. G 08 B 23 / OO, 1973. 2. USSR author's certificate No. 590792, cl. G 08 B 23 / OO, 1976 (prototype).