SU888160A1

SU888160A1 - Multipoint indication device

Info

Publication number: SU888160A1
Application number: SU802900413A
Authority: SU
Inventors: Юрий Александрович Кулагин; Александр Денисович Мыско; Юрий Дмитриевич Сверчков
Original assignee: Предприятие П/Я В-2156
Priority date: 1980-03-28
Filing date: 1980-03-28
Publication date: 1981-12-07

Description

Изобретение относится к автоматике, в частности к устройствам, реагирующим на отклонение от заданных значений параметров различных объектов, и может быть использовано в системах централизованного контроля и управления объектами различного назначения.The invention relates to automation, in particular to devices that respond to deviations from the set values of the parameters of various objects, and can be used in centralized monitoring and control systems for objects of various purposes.

Известны устройства для сигнали- . зации о состоянии контролируемого объекта, содержащие последовательно соединенные основной и дополнительный источники питания и световой сигнализатор канала, подключенный к основному источнику питания 15 через размыкающий контакт первой группы ключа проверки светового ..сигнализатора, датчик и диодную развязку своего канала, усилитель мощности мультивибратора, элемент памяти каж<- *0 дого канала, выполненный на динисторё, подключенном к дополнительному выходу диодной развязки на диоде и резисторе, соединен с дополнительным источником питания через общий для всех канатов ключ отключения мига- . ния, свободный вывод динистора через размыкающий контакт второй группы ключа проверки светового сигнализатора соединен со свободным выводом 30 основного источника питания, через замыкающие контакты обеих групп ключа проверки светового сигнализатора и дополнительную диодную развязку каждого канала,, основной источник питания соединен со световым сигнализатором, выход основной диодной развязки каждого канала соединен с мультивибратором и выходом усилителя мощности, а выход мультивибратора, соединенный с входом усилителя мощности, подклю-. чен к блоку звуковой сигнализации [1].Known devices for signaling. information about the state of the monitored object, containing series-connected primary and secondary power sources and a channel light, connected to the main power source 15 through the opening contact of the first group of the light check key .. signal device, sensor and diode isolation of its channel, multivibrator power amplifier, memory element each <- * 0 of the channel, made on a dynistor connected to an additional output of the diode isolation on the diode and resistor, is connected to an additional source power supply via a common key for all ropes - off switch. The free lead of the dynistor through the opening contact of the second group of the test light switch key is connected to the free terminal 30 of the main power supply, through the make contacts of both groups of the test light key switch and an additional diode isolation of each channel, the main power supply is connected to the light signal, the main output the diode isolation of each channel is connected to the multivibrator and the output of the power amplifier, and the output of the multivibrator connected to the input of the power amplifier is key. chen to the sound alarm unit [1].

Недостатки известных устройств заключаются в том, что фиксация факта срабатывания датчика в элементе памяти производится вручную, т.е. нажатием кнопки отключения мигания. В связи с этим кратковременные срабатывания сигнализации в отсутствии оператора не могут быть зафиксированы. С другой стороны, при ложных сраба- ; тываниях датчиков (например, при вибрации или качке) устройство воспроизводит ложную информацию. Кроме того., в устройстве не предусмотрена блокировка каналов сигнализации При нормальном состоянии (нормальной остановке) контролируемого объекта.The disadvantages of the known devices are that the fixation of the fact of the sensor in the memory element is performed manually, i.e. by pressing the button to turn off the flashing. In this regard, short-term alarms in the absence of an operator cannot be recorded. On the other hand, with a false slave; When the sensors are turned on (for example, during vibration or rocking), the device reproduces false information. In addition., The device does not provide for the blocking of alarm channels In the normal state (normal stop) of the controlled object.

Наиболее близкие решением по технической сущности и достигаемому результату к изобретению является устройство для многоточечной сигнализации, содержащее в каждом канале сигнализации блок световой сигнализации со световым индикатором появления и наличия сигнала датчика и дат- с 1чик дискретных сигналов, подключен- ³ный к блоку контроля, соединенному с общими блоком звукового оповещания с источником питания постоянного напряжения, дополнительный источник . _βпитания, логическую схему ИЛЙ, один ¹⁰ вход которой соединен с первым выходом блока контроля, другой - с выходом датчика, а выход соединен с первым входом блока световой сигнализации, второй и третий входы которого 15 соединены соответственно с вторым и третьим выходами блока контроля, а дополнительный источник питания подключен к блоку световой сигнализации и блоку звукового оповещания [2]. 20The closest solution in technical essence and the achieved result to the invention is a multi-point signaling device, comprising in each signaling channel a light-signaling unit with a light indicator of the appearance and presence of a sensor signal and a sensor of 1 discrete signals, connected ³ to a control unit connected with a common sound warning unit with a constant voltage power supply, an additional source. _β power, logic circuit ILY, one ¹⁰ input of which is connected to the first output of the control unit, the other to the output of the sensor, and the output is connected to the first input of the light signaling unit, the second and third inputs of which 15 are connected respectively to the second and third outputs of the control unit, and an additional power source is connected to the light signaling unit and the sound notification unit [2]. 20

К недостаткам известного устройства относится подача ложных сигналов при кратковременных срабатываниях датчиков, например при вибрации или качке отсутствие возможности использования в одном и том же устройстве датчиков с различным типом контактов или аналогичных дискретных датчиков, отсутствие тестовой проверки и блокировки каналов сигнализации при нормальном состоянии контролируемого объекта, а также отсутствие помехозащитных звеньев в структурной, схеме устройства, т.е. в конечном счете малая помехоустойчивость· и быстродействие.The disadvantages of the known device include the supply of false signals during short-term triggering of sensors, for example, during vibration or rolling, the inability to use sensors with different types of contacts or similar discrete sensors in the same device, the lack of test verification and blocking of alarm channels in the normal state of the monitored object, as well as the absence of anti-jamming links in the structural diagram of the device, i.e. ultimately low noise immunity · and speed.

Целью изобретения является повышение помехоустойчивости и быстродействия устройства.The aim of the invention is to increase the noise immunity and speed of the device.

.Поставленная цель достигается тем, что в устройство для многоточечной сигнализации, содержащее η ячеек сигнализации, в каждой из которых установлен датчик сигнала, первый выход которогосоединен с первым входом блока контроля,, выполненного на формирователе и элементе памяти, выходы блоков контроля соединены с выходами ячеек сигнализации, которые соединены с соответствующими входами блоков световой и звуковой сигнализации , источник импульсного напряжения и квитирующий элемент, выходы которых подключены соответственно к вторым и третьим входам блоков контроля всех ячеек сигнализации, и источник питания,введен тестовый блок, выполненный на двух ключах, а в каждой ячейке сигнализации установлены датчики блокировки, первые выводы ключей тестового блока подключены к общей шине устройства, второй вывод первого ключа подключен к четвертым входам блока контроля“всех ячеек сигнализации, второй вывод второго ключа соединен с вторыми и первыми выводами соответственно датчиков сигнала 65 и блокировки всех ячеек сигнализации, а второй вывод каждого датчика блокировки подключен к пятому входу соответствующего блока контроля. Кроме того, в блоке контроля каждой ячейки сигнализации установлены пять элементов И-НЕ, два элемента НЕ, элемент И, элемент задержки, индикатор и дополнительный формирователь, первый вход первого элемента И-НЕ подключен к четвертому входу блока контроля, первый вход второго элемента И-НЕ соединен с пятым входом блока контроля, вторые входы первого и второго элементов И-НЕ подключены к первому входу блока контроля, выход первого элемента И-НЕ соединен с третьим входом второго элемента И-НЕ, выход которого подключен через дополнительный формирователь к четвертому входу этого же элемента И-НЕ и к первому входу элемента И, а через последовательно соединенные первый элемент НЕ, элемент задержки и основной формирователь - к второму входу элемента И, выход которого соединен с первым входом элемента памяти, второй вход которого соединен с третьим входом блока контроля, выход элемента памяти подключен к первому входу третьего элемента И-НЕ и через второй элемент НЕ - к первому входу четвертого элемента И-НЕ, второй и третий входы которого соединены соответственно с входом и выходом элемента задержки, выход четвертого элемента И-НЕ подключен к первому входу пятого элемента И-НЕ, второй вход которого соединен с выходом третьего элемента 'и-НЕ, второй вход которого подключен к второму входу блока контроля, а выход пятого элемента И-НЕ соединен с индикатором и выходом блока контроля, а в блоке звуковой сигнализации установлены η Формирователей импульсов и элемент ИЛИ, входы которых соединены с выходами формирователей, а выход элемента ИЛИ подключен к звуковому сигнализатору.This goal is achieved by the fact that in the device for multipoint signaling, containing η alarm cells, in each of which a signal sensor is installed, the first output of which is connected to the first input of the control unit, made on the former and the memory element, the outputs of the control units are connected to the outputs of the cells signaling, which are connected to the corresponding inputs of the light and sound signaling units, a pulse voltage source and an acknowledgment element, the outputs of which are connected respectively to the second and third the inputs of the control units of all alarm cells, and the power source, a test block made on two keys has been inserted, and blocking sensors are installed in each alarm cell, the first conclusions of the keys of the test block are connected to the device’s common bus, the second output of the first key is connected to the fourth inputs of the block control “of all alarm cells, the second output of the second key is connected to the second and first outputs of the signal sensors 65 and locks of all alarm cells, and the second output of each lock sensor is connected en to the fifth input of the corresponding control unit. In addition, in the control unit of each signaling cell there are five NAND elements, two NAND elements, an AND element, a delay element, an indicator and an additional driver, the first input of the first NAND element is connected to the fourth input of the control unit, the first input of the second AND element -NOT connected to the fifth input of the control unit, the second inputs of the first and second elements AND NOT connected to the first input of the control unit, the output of the first element AND NOT connected to the third input of the second element NAND, the output of which is connected through an additional form the extender to the fourth input of the same AND-NOT element and to the first input of the AND element, and through the first element NOT connected in series, the delay element and the main driver to the second input of the AND element, the output of which is connected to the first input of the memory element, the second input of which is connected with the third input of the control unit, the output of the memory element is connected to the first input of the third AND-NOT element and through the second element NOT to the first input of the fourth AND-NOT element, the second and third inputs of which are connected respectively to the input and output delay element, the output of the fourth AND-NOT element is connected to the first input of the fifth AND-NOT element, the second input of which is connected to the output of the third AND-NOT element, the second input of which is connected to the second input of the control unit, and the output of the fifth element is NAND with an indicator and the output of the control unit, and η pulse shapers and an OR element, the inputs of which are connected to the outputs of the formers, and the output of the OR element is connected to the sound signaling device, are installed in the sound alarm unit.

Структурная схема устройства для многоточечной сигнализации приведена на фиг.1; на фиг.2 - структурная схема блока контроля устройства.The block diagram of a device for multipoint signaling is shown in figure 1; figure 2 is a structural diagram of a control unit of the device.

Устройство для многоточечной сигнализации содержит источник 1 питания, источник 2 импульсного напряжения, блок 3 световой сигнализации, блок 4 звуковой сигнализации, квитирующий элемент 5, η ячеек 6 сигнализации, тестовый блок 7, датчики 8 сигнала, датчики 9 блокировки, блок 10 контроля, ключи 11 и 12.Блок контроля содержит элементы И-НЕ 13-17, элементы НЕ 18,19,' элемент 20 задержки, основной 21 и дополнительный 22 формирователи, элемент И 23, элемент 24 памяти, индикатор 25,-а блок звуковой сигнализации содержит η формироs вателей 26, элемент ИЛИ 27 и звуковой сигнализатор 28,The device for multipoint signaling contains a power source 1, a pulse voltage source 2, a light signaling unit 3, an audio signaling unit 4, an acknowledgment element 5, η signaling cells 6, a test unit 7, signal sensors 8, blocking sensors 9, a control unit 10, keys 11 and 12. The control unit contains AND-NOT 13-17 elements, NOT 18.19 elements, 'delay element 20, main 21 and additional 22 shapers, element 23, memory element 24, indicator 25, the sound alarm unit contains η shapers 26, OR element 27 and sound signal alizator 28,

Устройство для многоточечной сигнализалии работает следующим образом.A device for multipoint signaling works as follows.

Датчики 8 и 9 , а также ключи 11 и 12 блока 7, находящиеся в исходном j (нормальном) состоянии, обеспечивают режим ожидания блока 10, при котором оц готов к приему сигнала.Sensors 8 and 9, as well as keys 11 and 12 of block 7, which are in the initial j (normal) state, provide a standby mode of block 10, in which the sc is ready to receive a signal.

При поступлении сигнала от датчика 8 в одной* из η ячеек 6 на выходе элемента И-НЕ 14 блока 10 появляется '’нуль'', взамен ''единицы'', которая была в исходном ,состоянии этого элемента. Через элемент НЕ 18 и элемент 20 потенциальный сигнал поступает на вход формирователя 21, на вы-15 ходе которого появляется кратковременный импульс с уровнем ''единицы'', который подается на один из входов элемента И 23. На другой вход этого элемента подается потенциал ''едини- 20 ца’’ с выхода формирователя 22. С выхода элемента И 23 кратковременный импульс подается на вход установки ''единицы'' элемента 24 и на выходе последнего устанавливается потенци- 25 ал ’’единица''. На выходе элемента И-НЕ 17, являющимся выходом блока 10, появляется импульсный сигнал, сформированный источником 2, поданный на вход элемента И-НЕ 17 через элемент jq И-НЕ 15. Этот сигнал появляется на выходе элемента И-НЕ 17 при условии наличия разрешающих сигналов на соседних входах элементов И-НЕ 15 и 16. Это условие обеспечивается наличием ''единицы'' на выходах элементов 24, И-НЕ 16, когда на один из входов последнего будет подан ''нуль'' с выхода элемента НЕ 19.When a signal arrives from the sensor 8 in one * of η cells 6, an ’zero’ appears on the output of the AND-NOT element 14 of block 10, instead of the 'unit ’that was in the initial state of this element. Through the element NOT 18 and the element 20, the potential signal is fed to the input of the shaper 21, at which you receive a short-term pulse with the level of `` unit '', which is fed to one of the inputs of the element And 23. At the other input of this element, the potential “one 20 centigrade” from the output of the shaper 22. From the output of the And 23 element, a short-term pulse is fed to the input of the installation of the “unit” of the 24 element and the potential of 25 al “one” is set at the output of the latter. At the output of the AND-NOT 17 element, which is the output of block 10, a pulse signal appears, generated by the source 2, fed to the input of the AND-NOT 17 element through the AND-NOT 15 element jq. This signal appears at the output of the AND-NOT 17 element, subject to the availability enable signals at adjacent inputs of AND-NOT elements 15 and 16. This condition is ensured by the presence of a `` unit '' at the outputs of elements 24, AND-NOT 16, when one of the inputs of the latter will be supplied with `` zero '' from the output of element NOT 19 .

При появлении сигнала в виде им.пульсного напряжения на выходе ячей- 40 ки 6 срабатывают блоки 3 и 4. Импульсы напряжения подаются на вход одного из η формирователей 26 блока 4, который запускается передними фронтами этих импульсов и повторяет их длительность. С выхода формирователя 26 импульсы через элемент ИЛИ .27 поступают на сигнализатор 28, который при этом воспроизводит прерывистый звук. Импульсы напряжения,поступающие с выхода ячейки 6 на вход блока 3, преобразуются в нем в прерывистые световые сигналы. При квитировании полученного сигнала оператором (воздействие на квитирующий элемент 5) подается сигнал на вход установки ''нуля'¹ элемента 24 блока 10,на выходе которого устанавливается ''нулевой'' потенциал.Одновременно на выходе элемента И-НЕ 15.. устанавливается единицаа на выходе 60 элемента Й-НЕ 16-''нуль'',так как на входах последнего установились '¹едиИиЧныё'^г^ ''потёнциалы из-за наличия сигнала от датчика 8 (что отображено состоянием на входе и выходе эле- 65 мента 20) и появления ''нуля'' на входе элемента НЕ 19. При этом на выходе элемента И-НЕ 17 устанавливается •'единица'' и блок 3 до возвращения датчика 8 в нормальное состояние воспроизводит постоянный световой сигнал, а блок 4 не работает, так как отсутствуют импульсы, запускающие формирователи 26 блока 4. Срабатывание сигнализации при возвращении датчика 8 в нормальное состояние обеспечивается при времени восстановления элемента 20, большем, чем длительность импульса формирователя 22. При кратковременном срабатывании датчика 8 и возвращении его в нормальное состояние до квитирования элементом 5 ячейт ка 6 будет воспроизводить на выходе импульсный сигнал, который преобразовывается в световой и звуковой сигналы соответствующими блоками устройства, при условии, если длительность сигнала от датчика 8 превышает установленную для этого канала выдержку времени элемента 20, которая устанавливается для каждой ячейки 6 индивидуально в зависимости от времени переходного режима датчика 8. Например, датчики уровня жидкости (особенно при качке) имеют большее время переходного режима, а датчики давления меньшее. Назначение элемента 20 состоит в том, чтобы препятствовать срабатыванию ячейки 6 во время переходного режима датчика 8. Повышенная помехоустойчивость устройства многоточечной сигнализации обеспечивается формирователем 22 совместно с элементами И-НЕ 14 и И 23. При изменении состояния выхода элемента И-НЕ 14 под воздействием сигнала или помехи формирователь 22 формирует импульс ''нулевого' ' уровня, длительность которого не зависит от состояния на входе. Этот импульс запирает вход элемента И-НЕ 14 и вход элемента -И 23 на случай проникновения помех в тракт сигнала через распределенные паразитные реактивности. Таким образом, совместная работа формирователя 22 [ и элементов И-НЕ 14 и И 23 обеспечивает не только защиту от импульсных высокочастотных помех, проникающих в блок 10 по линиям связи датчиков, но и предотвращает ложные срабатывания от дребезга контактов датчика. . Тестовый блок 7 совместно с индикаторами 25 блоков 10 обеспечивают возможность оперативного контроля работоспособности устройства независимо от состояния датчиков 8 и блокировки 9. Воздействуя ключом 12 на~пёрвые выводы датчиков 8 и 9, устанавливают на их сигнальных выводах состояние единица' (разомкнутое состояние ключа 12). Ключ 11 в зависимости от нормального состояния примененных датчиков - ''единицы'' или ''нуля'' формирует тестовой сиг7 ,8 нал на соответствующих входах блоков 10. Исправность блоков 10 индицируется индикатором 25. Блоки 3 и 4 срабатывают при наличии тестового сиг* нала так же,как и в рабочем режиме. Для устранения ложный срабатываний ячеек 6 при нормальном (нерабочем) состоянии объекта,на котором установлён датчик 8.предусмотрен датчик 9.В нормальном состоянии на выходе датчика 9, подключенного к второму входу элемента И-НЕ 14, - ''единица¹'. При его срабатывании ''нулевой'¹ сигнал запирает элемент И-НЕ 14 и делает невозможным срабатывание ячейки 6 от сигнала датчика 8 по любому из предназначенных для него входов.When a signal appears in the form of an impulse voltage at the output of cell 40, blocks 3 and 4 are triggered. Voltage pulses are fed to the input of one of the η formers 26 of block 4, which is triggered by the leading edges of these pulses and repeats their duration. From the output of the shaper 26, the pulses through the OR element .27 arrive at the signaling device 28, which reproduces an intermittent sound. The voltage pulses coming from the output of the cell 6 to the input of block 3 are converted into intermittent light signals in it. When the received signal is acknowledged by the operator (affecting the acknowledging element 5), a signal is input to the input of setting “zero” ^{1 of} element 24 of block 10, the output of which is set to “zero” potential. At the same time, the unit at the output of the 60th element N-NOT 16 - `` zero '', since at the inputs of the latter there were established ' ¹ single' ^g ^ '' potentials due to the presence of a signal from sensor 8 (which is indicated by the state of the input and output of the element 65 20) and the appearance of `` zero '' at the input of the element NOT 19. Moreover, at the output of the element AND-NOT 17 • “one” is set and block 3 until the sensor 8 returns to its normal state produces a constant light signal, and block 4 does not work, since there are no pulses triggering the formers 26 of block 4. An alarm is triggered when the sensor 8 returns to its normal state at time restoration of the element 20, longer than the pulse duration of the shaper 22. When the sensor 8 is briefly activated and returns to its normal state before the element 5 acknowledges, cell 6 will reproduce on a pulse signal, which is converted into light and sound signals by the corresponding units of the device, provided that the duration of the signal from the sensor 8 exceeds the time delay of the element 20 set for this channel, which is set for each cell 6 individually depending on the time of the transition mode of the sensor 8. For example, liquid level sensors (especially during pumping) have a longer transition time, and pressure sensors are shorter. The purpose of the element 20 is to prevent the operation of the cell 6 during the transient mode of the sensor 8. The increased noise immunity of the multi-point signaling device is provided by the driver 22 together with the AND-NOT 14 and AND 23. When the output state of the AND-NOT 14 element is affected by the signal or interference, the driver 22 generates a pulse of a `` zero '' level, the duration of which does not depend on the state at the input. This pulse locks the input of the AND-NOT 14 element and the input of the -AND 23 element in case interference enters the signal path through distributed spurious reactances. Thus, the joint operation of the shaper 22 [and the elements NAND 14 and AND 23 provides not only protection against pulsed high-frequency interference penetrating the block 10 along the sensor communication lines, but also prevents false alarms from the bounce of the sensor contacts. . Test block 7 together with indicators 25 of blocks 10 provide the possibility of operational monitoring of the device’s operability, regardless of the state of the sensors 8 and lock 9. Using the key 12 on the ~ first conclusions of the sensors 8 and 9, set the state to 1 on their signal outputs (open state of the key 12) . Key 11, depending on the normal state of the applied sensors - “units” or “zero” forms a test signal 7, 8 cash on the corresponding inputs of blocks 10. The serviceability of blocks 10 is indicated by indicator 25. Blocks 3 and 4 are triggered when a test signal * Nala in the same way as in the operating mode. To eliminate the false positives of cells 6 in the normal (inoperative) state of the object on which the sensor 8 is installed. Sensor 9 is provided. In the normal state, the output of the sensor 9 connected to the second input of the AND-NOT 14 element is “ ¹ ”. When it is triggered, the `` zero '' ¹ signal locks the AND-NOT 14 element and makes it impossible for the cell 6 to operate from the signal of the sensor 8 at any of the inputs intended for it.

Введение датчиков блокировки, возможность использования в устройстве любых дискретных датчиков сигнала независимо от их исходного состояния, использование задержки в блоке контроля, обеспечивающей нормальную работу канала при нахождении датчика в граничном режиме, который характеризуется большим числом срабатываний, позволит расширить функциональные возможности устройства. Введение дополнительного формирователя, и элементов И и И-НЕ, осуществляющих функцию селекции входного сигнала по длительности и запрета на запись помех и ложных сигналов в элемент памяти, вызванных некачественной ра.ботой датчика, обеспечило повышение помехоустойчивости устройства. Использование логических элементов в блоке контроля обеспечило его универсальность, а исполнение его на интегральных микросхемах обеспечило высокую надежность и уменьшило габариты. Введение тестового блока и его связи позволило обеспечить оперативный кон- троль работоспособности устройства 'независимо от состояния датчиков, т.е. его быстродействие.The introduction of blocking sensors, the ability to use any discrete signal sensors in the device, regardless of their initial state, the use of a delay in the control unit, which ensures normal operation of the channel when the sensor is in the boundary mode, which is characterized by a large number of operations, will expand the functionality of the device. The introduction of an additional shaper, and AND and NAND elements, which perform the function of selecting an input signal for a duration and prohibiting recording of interference and false signals into a memory element caused by poor-quality sensor operation, increased the noise immunity of the device. The use of logic elements in the control unit ensured its versatility, and its execution on integrated circuits ensured high reliability and reduced dimensions. The introduction of the test unit and its connection made it possible to ensure operational monitoring of the device’s operability, regardless of the state of the sensors, i.e. its speed.

Claims

The invention relates to automation, in particular to devices that react to deviations from the set values of parameters of various objects, and can be used in systems of centralized monitoring and control of objects of various purposes. Known devices for signaling. Emissions about the state of a controlled object containing the main and auxiliary power sources and the channel light indicator connected in series to the main power source through the disconnecting contact of the first group of the light signal test key, detector, sensor and its own channel output, multivibrator power amplifier, element each memory module, made on the dynistor, connected to the additional in the course of the diode isolation on the diode and the resistor, is connected to an additional source Itani through common to all key kanoshov disconnecting the flashing. No, the free output of the dynistor through the opening contact of the second group of the test key of the light transmitter is connected to the free output of the main power source, through the make contacts of both groups of the Key test the light signaling device and the additional diode of each channel, the main power source is connected to the light signaling device, the output of the main diode isolator of each channel is connected to the multivibrator and the output of the power amplifier, and the output of the multivibrator connected to the input of the power amplifier is License keys. Whose sound alarm unit is 1. The disadvantages of the known devices are that the fact that the sensor is triggered to the sensor element is recorded manually, i.e. by pressing the blink off button. In this connection, the short-term alarms of the alarm in the absence of the operator cannot be fixed. On the other hand, in case of false invoking of sensors (for example, during vibration or rolling), the device reproduces false information. In addition, the device does not provide for blocking alarm channels. In the normal state (normal stop) of the monitored object. The most closely related1) (the solution to the technical essence and the achieved result of the invention is a device for multipoint signaling, containing in each signaling channel a light signaling unit with a light indicator of the occurrence and presence of a sensor signal and a discrete signal sensor connected to a control unit connected to a common audible warning unit with a constant voltage power source, an additional power source, an OR circuit, one input of which is connected to the first output of the block ntrol, the other with the sensor output, and the output is connected to the first input of the light signaling unit, the second and third inputs of which are connected respectively to the second and third outputs of the control unit, and an additional power source is connected to the light signaling unit and the sound alert unit 2. To the disadvantages The known device relates to the delivery of a false signal during short-term triggers of the sensors, for example, when vibration or quality is impossible to use sensors with different types in the same device. contacts or similar discrete sensors, the absence of test checks and the blocking of signaling channels in the normal state of the object being monitored, as well as the absence of interference. protective links in the structural scheme of the device, i.e. ultimately, noise immunity and speed are small. The aim of the invention is to improve the noise immunity and speed of the device. The goal is achieved by the fact that the device for multipoint signaling, which contains alarm signaling cells, each of which has a signal sensor, the first output connected to the first input of the control unit, performed on the shaper and the memory element, the outputs of the control units are connected to the outputs of the cells alarms that are connected to the corresponding inputs of the light and sound alarm units, the source of the pulse voltage and the acknowledgment element, the outputs of which are connected to the second and third respectively To the inputs of the control units of all alarms, and the power source, a test block is inserted on two keys, and blocking sensors are installed in each cell, the first conclusions of the keys of the test block are connected to the device common bus, the second output of the first key is connected to the fourth inputs of the block control of all signaling cells, the second output of the second key is connected to the second and first outputs, respectively, of the signal sensors and blocking of all the signaling cells, and the second output of each blocking sensor unit to the input of the corresponding control unit. In addition, in the control unit of each alarm cell, there are five AND-NOT elements, two NOT elements, the AND element, the delay element, the indicator and the additional driver, the first input of the first AND element are not connected to the fourth input of the control unit, the first input of the second element AND-NOT is connected to the fifth input of the control unit, the second inputs of the first and second elements of the AND-NOT are connected to the first input of the control unit, the output of the first AND-NOT element is connected to the third input of the second AND-NOT element, the output of which is connected via an additional function An offsetting device to the fourth input of the same element is NAND and to the first input of the AND element, and through the first element NO connected in series, the delay element and the main driver to the second input of the And element whose output is connected to the first input of the memory element, the second input of which connected to the third input of the control unit, the output of the memory element is connected to the first input of the third NAND element and through the second element NOT to the first input of the fourth NAND element, the second and third inputs of which are connected respectively to the input and you one delay element, the output of the fourth AND-HB element is connected to the first input of the fifth NAND element, the second input of which is connected to the output of the third AND-NOT element, the second input of which is connected to the second input of the control unit, and the output of the fifth AND element NOT connected to the indicator and the output of the control unit, but in the audible alarm unit there are installed pulse formers and an OR element, whose inputs are connected to the outputs of the formers, and the output of the OR element is connected to an audible alarm. The block diagram of the device for multipoint signaling is shown in figure 1; figure 2 - block diagram of the control unit of the device. The device for multipoint signaling contains a source of 1 voltage, a source of 2 pulsed voltage, a light signaling unit 3, a sound alarm unit 4, an acknowledgment element 5, signaling cells 6, a test unit 7, signal sensors 8, blocking sensors 9, a control unit 10 / keys 11 and 12. The control block contains AND-NOT elements 13-17, NOT elements 18,19, delay element 20, main 21 and additional 22 drivers, AND element 23, memory element 24, indicator 25, -a sound block alarm contains n drivers 26, the element OR 27 and the sound. Your ignalizator 28, apparatus for multipoint Sig lieatsii operates as follows. Sensors 8 and 9, as well as keys 11 and 12 of block 7, which are in the initial (normal) state, provide the standby mode of block 10, in which oq is ready to receive a signal. When a signal is received from the sensor 8 E of one of the cells 6, at the output of the AND-HE element 14 of the block 10, a zero appears, instead of the one that was in the initial state of this element. Through the element 18 and the element 20, the potential signal is fed to the input of the former 21, during which a short pulse appears with a level of one that is fed to one of the inputs of element And 23. To the other input of this element, the potential one is supplied from the output of the former 22. At the output of the element I 23, a short pulse is applied to the input of the unit of the element 24 and the potential one is established at the output of the latter. At the output of the NAND 17 element, the output of block 10 is a pulse signal formed by source 2, applied to the input of the NAND 17 element through the NAND 15. Element. This signal appears at the output of the NAND 17 element subject to the presence of permissive signals at the adjacent inputs of the AND-HE elements 15 and 16 This condition is ensured by the presence of a unit at the outputs of the elements 24, AND-HE 16, when one of the last inputs will receive a zero from the output of the HE element 19. When cviruana appears in the form of a pulse voltage at the output of the cell 6, blocks 3 and 4 are triggered. Pulse voltage is input to one of claim 26 formers unit 4, which is triggered by the leading edges of these pulses and repeats their duration. From the output of the imager 26 pulses through the element OR.2 arrive at the alarm 28, which in this case produces an intermittent sound. The voltage pulses, coming from the output of the cell 6 to the input of the block 3, are converted into intermittent light signals. When a signal is received by the operator (the effect on the acknowledging element 5), a signal is sent to the input of setting the zero of the element 24 of the block 10, the output of which is set to zero potential. At the same time, the unit is output at the output of the NAND unit 15. And -NOT 16-zero, since one was established at the inputs of the latter due to the presence of a signal from sensor 8 (which is indicated by the state at the input and output of element 20) and the appearance of zero at the input of the element 19. At the same time, at the output of the element NAND 17 is set The unit and block 3, before returning the sensor 8 to the normal state, reproduces a constant light signal, but block 4 does not work, since there are no pulses that trigger the drivers 26 of block 4. The alarm is triggered when the sensor 8 returns to normal condition during the element recovery time. 20, longer than the pulse duration of the mapper 22. If the sensor 8 is momentarily triggered and returned to normal before being acknowledged by the element 5, the talk 6 will produce a pulse at the output a ramp that is converted into light and sound signals by the corresponding units of the device, provided that the duration of the signal from sensor 8 exceeds the time delay of element 20 set for this channel, which is set for each cell 6 individually depending on the transition time of sensor 8. For example, liquid level sensors (especially when rolling) have a longer transient time, and pressure sensors less. The purpose of element 20 is to prevent cell 6 from being triggered during transient operation of sensor 8. Increased noise immunity of the multipoint alarm device is provided by shaper 22 together with elements AND-HE 14 and AND 23. When the output state of element AND-HE 14 changes under the signal or interference from the shaper 22 forms a zero-level pulse, the duration of which does not depend on the state on the input. This pulse locks the input element AND-HE 14 and the input element-I 23 in case of interference into the signal path through the distributed parasitic reactivity. Thus, the work of the coater 22 | and the elements AND-HE 14 and AND 23 not only provide protection against pulsed high-frequency noise penetrating into block 10 through the sensor lines, but also prevents false alarms from the bounce of the sensor contacts. . The test block 7 together with the indicators 25 of the blocks 10 provide the possibility of operative control of the device operation regardless of the state of the sensors 8 and blocking 9. By operating the key 12 on the first terminals of the sensors 8 and 9, the state one is set on their signal outputs (open state of the key 12 ). Key 11, depending on the normal state of the unit of sensors used or zero, forms a test signal at the corresponding inputs of the lo blocks. The operability of the blocks 10 is indicated by the indicator 25. The blocks 3 and 4 work in the presence of a test signal in the same way as in the working mode: ime. To eliminate false positives of cells b in the normal (inoperative) state of the object on which sensor 8 is installed, sensor 9 is provided. In the normal state, the output of sensor 9 connected to the second input of the NAND 14 element is one. When it is triggered, the zero signal locks up the NAND 14 element and makes it impossible for the cell b to be triggered by the signal from the sensor 8 in any of its intended inputs. The introduction of blocking sensors, the possibility of using any discrete signal sensors in the device, regardless of their initial state, the use of a delay in the control unit, which ensures the normal operation of the channel when the sensor is in the boundary mode, which is characterized by a large number of operations, will expand the functionality of the device. The introduction of an additional driver, and AND AND AND-NES elements that perform the function of selecting the input signal by duration and prohibiting the recording of noise and spurious signals in the memory element caused by poor sensor performance, increased the noise immunity of the device. The use of logic elements in the control unit ensured its versatility, and its execution on integrated circuits ensured high reliability and reduced dimensions. The introduction of the test unit and its connection made it possible to ensure operational control of the device operability regardless of the state of the sensors, i.e. its speed. Claim 1. Device for multipoint signaling, containing alarm signaling cells, each of which has a signal sensor, the first output of which is connected to the first input of the control unit, performed on the driver and the memory element, the outputs of the control units are connected to the outputs of the alarm cells, which connected to the corresponding inputs of the light and sound alarm units, the source of the pulse voltage and the acknowledging element, the output of which is connected respectively to the second and third inputs of the blocks to All alarms are the role of the power source, which is different from that, in order to improve the noise immunity and speed of the device, a test block is inserted in it, made on two keys, and the blocking sensors are installed in each cell the test block is connected to the common bus of the device, the second output of the first key is connected to the fourth inputs of the control unit of all the alarm cells, the second output of the second key is connected to the second and first outputs of the signal sensors and the block, respectively Application of cell signaling and the second terminal of each lock sensor connected to said fifth input of the corresponding control unit. 2. Device POP.1, characterized in that in the control unit of each signaling cell there are five AND-NOT elements, two NOT elements, AND element, delay element, indicator and additional driver, the first input of the first AND element is not connected to the fourth the input of the control unit, the first input of the second element IS-NOT connected to the fifth input of the control unit, the second inputs of the first and second elements of the IS-NOT connected to the first input of the control unit, the output of the first element AND-NOT connected to the third input of the second element AND-NOT whose output is n It is connected via an additional driver to the fourth input of the same NAND element and to the first input of the AND element, and through the first element IN series, the delay element and the main driver to the second input. element And, the output of which is connected to the first input of the memory element, the second input of which is connected to the third. The control unit's input, the memory element output is connected to the first input of the third NAND element, and through the second, the NO element to the first input of the fourth NAND element, the second and third inputs of which are connected respectively to the input and output of the delay element. the output of the fourth element AND-NOT is connected to the first input of the fifth element AND-NOT, the second input of which is connected to the output of the third element AND-NOT, the second input of which is connected to the second input of the control unit, and the output of the fifth element AND-NOT connected to the indicator and the output of the control unit. 3, The device according to claim 1, characterized in that in the audible alarm unit there are installed pulse formers and an OR element, the inputs of which are connected to the outputs of the formers, and the output of the terminal OR is connected to the acoustic signaling device. Sources of information taken into account in the examination 1. USSR author's certificate number 542217, cl. G 08 B 23/00, 1975.

2. USSR author's certificate number 447734, cl. G 08 B 25/00, 1972 (prototype),

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