SU771620A1

SU771620A1 - Device for diagnosis of control systems

Info

Publication number: SU771620A1
Application number: SU782684098A
Authority: SU
Inventors: Аркадий Петрович Шершаков; Геннадий Николаевич Андреев; Евгений Леонидович Хрекин
Original assignee: Предприятие П/Я А-1665
Priority date: 1978-11-16
Filing date: 1978-11-16
Publication date: 1980-10-15

Description

Изобретение относится к устройствам для автоматической диагностики систем и может быть использовано в системах автоматического управления j и контроля.The invention relates to devices for automatic diagnostics of systems and can be used in automatic control systems j and control.

Известно устройство для автоматического поиска неисправностей, которое содержит электронные ключи, триггеры, элементы задержки, элементы . j ЗАПРЕТ, элементы ИЛИ, формирователь; реле времени, шифратор адреса, регистр и блок индикации [1].A device for automatic troubleshooting is known, which contains electronic keys, triggers, delay elements, elements. j FORBID, OR elements, shaper; time relay, address encoder, register and display unit [1].

Недостатками известного устройства являются последовательный цикл опроса, что значительно увеличивает время контроля, а также то, что устройство не может формировать тестовую посылку для контроля системы. jThe disadvantages of the known device are the sequential polling cycle, which significantly increases the monitoring time, as well as the fact that the device cannot generate a test package for monitoring the system. j

Известно также устройство функционального контроля системы автоматизированного управления, которое содержит основной и контрольный блок пита'ния, переключатель вида питания, ко- ] мандный аппарат, блоки логики, выходные устройства, исполнительные устройства, датчики положения исполнительных устройств, элементы контроля, магнитный усилитель, реле контроля, 2 логические элементы И, ИЛИ, ЗАПРЕТ [2].A device for functional control of an automated control system is also known, which contains a main and control power supply unit, a type of power switch, a command unit, logic blocks, output devices, actuators, position sensors of actuators, control elements, a magnetic amplifier, a relay control, 2 logical elements AND, OR, FORBIDDEN [2].

Это устройство имеет следующие недостатки: последовательный цикл контроля, ведущий к значительному увеличению времени контроля, особенно при контроля большого числа механизмов; отсутствие в устройстве ограничения времени проверки в случае отказа какого-либо механизма ведет к увеличению времени проверки и неопределенности неисправности в процессе контроля, а отсутствие в устройстве сигнализации об этапах контроля не позволяет выявить конкретную неисправность системы.This device has the following disadvantages: a sequential control cycle, leading to a significant increase in control time, especially when controlling a large number of mechanisms; the absence in the device of a limitation of the verification time in the event of a failure of any mechanism leads to an increase in the verification time and the uncertainty of a malfunction during the monitoring process, and the absence of an alarm in the device about the monitoring stages does not allow to identify a specific system malfunction.

Наиболее близким техническим решением к данному изобретению является устройство для диагностики систем управления, содержащее блок формирования тактов, преобразователь кода, дешифратор, последовательно соединенные первый элемент ИЛИ, распределитель и второй элемент ИЛИ, а также третий элемент ИЛИ, первый ключ и реле.времени, подключенное выходом к первым входам блоков регистрации и индикации [3].The closest technical solution to this invention is a device for diagnosing control systems, comprising a clock generation unit, a code converter, a decoder, a first connected OR element, a distributor and a second OR element, as well as a third OR element, a first key and a relay. output to the first inputs of the registration and display units [3].

Недостатком такого устройства является недостаточная достоверность результатов диагностирования.The disadvantage of this device is the lack of reliability of the diagnostic results.

Цель изобретения - повышение результатов диагностирования - достигается тем, что в устройство введены элемент НЕ, элемент памяти, второй ключ и формирователь импульсов, выход которого соединен со входом реле времени первый вход - с выходом второго элемента ИЛИ и с Управляющим входом дешифратора, а второй вход - через второй ключ с первым входом устройства и с первым входом первого элемента ИЛИ, соединенного вторым входом .через·¹ первый ключ со вторым входом'устройства и через элемент памяти со вторым входом блока индикации, а третьими входами - с первыми выходами дешифратора, информационные входы которого подключены к выходам преобразователя кода, а вторые выходы - ко вторым входам блока регистрации, причем первые выходы распределителя соединены со входами блока формирования тактов, а второй выход - с третьим и через элемент НЕ с четвертым входами блока индикации .The purpose of the invention is to increase the diagnostic results is achieved by the fact that the element is NOT entered, a memory element, a second key and a pulse shaper, the output of which is connected to the input of the time relay, the first input - with the output of the second OR element and with the control input of the decoder, and the second input - through the second switch to the first input device and to a first input of a first OR gate connected to the second input .Through · ¹ first key with the second vhodom'ustroystva memory element and through the second input of the indication unit, and a third input mi - with the first outputs of the decoder, the information inputs of which are connected to the outputs of the code converter, and the second outputs - to the second inputs of the registration unit, the first outputs of the distributor connected to the inputs of the clock generation unit, and the second output to the third and through the element NOT to the fourth inputs display unit.

На чертеже представлена функциональная схема устройства, содержащая преобразователь кода 1, блок регистрации 2, элемент памяти 3, блок формирования тактов 4, реле времени 5, пер-30 вый ключ 6, дешифратор 7 с информационными 8 и управляющими 9 входами и с выходами 10 и 11, элемент ЗАПРЕТ 12, элемент памяти 13, формирователь импульсов 14, первый 15, второй 16 и третий 17 элементы ИЛИ, элементы И 18, 19 и 20, элемент НЕ 21', второй ключ 22, элемент НЕ 23, индикаторы 24, 25 и 26, распределитель 27, диагностируемую систему управления 28 и блок индикации 29.The drawing shows a functional diagram of a device containing a code converter 1, a recording unit 2, a memory element 3, a clock generation unit 4, a timer 5, a first 30 key 6, a decoder 7 with information 8 and control 9 inputs and outputs 10 and 11, element BAN 12, memory element 13, pulse shaper 14, first 15, second 16 and third 17 elements OR, elements AND 18, 19 and 20, element NOT 21 ', second key 22, element NOT 23, indicators 24, 25 and 26, dispenser 27, diagnosed control system 28 and display unit 29.

Устройство работает следующим образом.The device operates as follows.

При поступлении входного воздействия на вход ''Контроль'’ через ключ 6, элемент 3 и элемент И 19 включается индикатор 24 ''Контроль идет’’, сигнализирующий о том, что контроль системы начался. Этим же сигналом через элемент ИЛИ 15 запускается распределитель 2 7, который выдает сигнал на блок 4, в котором формируется сигнал, ссотъетствующий первому циклу проверки и этот сигнал поступает на систему 28. Сигналом с выхода распределителя 27 через элементы ИЛИ 16, 17 и формирователь 14 запускается реле 5 и через элемент ИЛИ 16 подготавливается дешифратор 1 к анализу комбинации, поступающей на входа 8 из системы 28 через преобразователь 1. В случае исправной работы систеиел комбинация входных сигналов совпадает с заложенной в дешифраторе 1, и исправная комбинация с одного из выходов 10 через элемент ИЛИ 15 поступит на распреде.When the input action arrives at the input '' Control '’through the key 6, element 3 and element And 19, the indicator 24' 'Control goes’ ’’ is turned on, indicating that the control of the system has begun. The same signal through the OR element 15 starts the distributor 2 7, which gives a signal to the block 4, in which a signal is generated that corresponds to the first test cycle and this signal is supplied to the system 28. The signal from the output of the distributor 27 through the elements OR 16, 17 and the shaper 14 relay 5 starts and, through element OR 16, decoder 1 is prepared for analysis of the combination received at input 8 from system 28 through converter 1. If the system works properly, the combination of input signals coincides with that in the decoder 1, and the correction an explicit combination from one of the outputs 10 through the element OR 15 will be received on the switchgear.

.1 » литель 27, переводя его с первого цикла на второй, при этом реле 5 начинает работу с начала нового цикла..1 "litel 27, transferring it from the first cycle to the second, while relay 5 starts working from the beginning of a new cycle.

В случае исправной работы системы далее работа устройства аналогична работе в первом цикле.In the case of proper operation of the system, then the operation of the device is similar to work in the first cycle.

В конце последнего цикла проверки сигналом с последнего выхода распределителя 27 через элемент И 18 включается индикатор 26 ¹'Исправно*' и через элементы НЕ 21, ЗАПРЕТ 12,И 19 выключается индикатор 24 ''Контроль идет'/At the end of the last test cycle, the signal from the last output of the distributor 27 through the AND 18 element turns on the indicator 26 ¹ 'OK *' and through the elements NOT 21, PROHIBITED 12, AND 19 the 24 '' Control goes off 'indicator /

В случае возникновения неисправности в системе 28 откликом системы уже будет комбинация, отличающаяся от исправной. В этом случае реле 5, время задержки которого больше времени, необходимого для отработки системой входного воздействия, срабатывает и включает через элементы И 20 и 13 индикатор 25 ''Отказ'' и индикаторы в блоке 21, которые отмечают неисправную комбинацию. Эта неисправная комбинация характеризует неисправность и' место ее возникновения в системе 28.In the event of a malfunction in system 28, the response of the system will already be a combination that differs from the serviceable one. In this case, the relay 5, the delay time of which is longer than the time required for the system to handle the input action, is activated and turns on the indicators 25 '' Failure '' and the indicators in block 21, which indicate a malfunctioning combination, through elements And 20 and 13. This faulty combination characterizes the fault and its place of occurrence in system 28.

Для продолжения.контроля необходимо подать входное воздействие на вход ''Продолжение контроля''. При этом продолжают гореть индикаторы 24 ''Контроль идет'' и 25 ''Отказ'', показывающие, что контроль не закончен, но уже был отказ. Сигнал от входа ''Продолжение контроля¹' через элементы НЕ 22 и ИЛИ 17, формирователь 14 запускает реле 5 и через элемент ИЛИ 15 переводит распределитель 27 в следующий цикл проверки.To continue the control, it is necessary to apply the input action to the input 'Continuation of control'. At the same time, the 24 '' Control is on '' and 25 '' Failure '' indicators continue to light, indicating that the control is not completed, but there was already a failure. The signal from the input "Continuation of control ¹ " through the elements NOT 22 and OR 17, the driver 14 starts the relay 5 and through the element OR 15 transfers the distributor 27 to the next test cycle.

Индикаторы в блоке 2 гаснут.The indicators in block 2 go out.

Индикация неисправностей и работа устройства в последующих циклах аналогична выше описанной.Indication of malfunctions and operation of the device in subsequent cycles is similar to that described above.

После последнего цикла контроля сигнал с последнего выхода распределителя через элементы НЕ 21, ЗАПРЕТ 12 и 19 выключает индикатор 24 ''Контроль идет' ' и продолжает гореть инди-·· катор 25 ''Отказ¹'. Это свидетельствует о том, что контроль системы окончен и что в системе произошел отказ.After the last monitoring cycle, the signal from the last output of the distributor through the elements NOT 21, PROHIBIT 12 and 19 turns off the 24 '' Monitoring goes on '' indicator and the 25 '' Fault ¹ 'indicator continues to light. This indicates that the control of the system is over and that a failure has occurred in the system.

Таким образом такое выполнение устройства для диагностирования систем управления позволяет расширить функциональные возможности устройства, т.е. позволяет в случае отказа каких то систем в первых циклах контроля, продолжить контроль систем в’ оставшихся циклах контроля, без устранения неисправности, возникшей в первых циклах. Это экономит время контроля и обеспечивает получение полной информации по отказам во всех циклах контроля.Thus, this embodiment of the device for diagnosing control systems allows you to expand the functionality of the device, i.e. allows in case of failure of some systems in the first control cycles, to continue monitoring the systems in the ’remaining control cycles, without eliminating the malfunction that arose in the first cycles. This saves control time and provides complete information on failures in all control cycles.

Claims

The invention relates to devices for the automatic diagnosis of systems and can be used in systems of automatic control and monitoring. A device for automatic troubleshooting is known which contains electronic keys, triggers, delay elements, BAN elements, OR elements, time relay driver, address coder, register and display unit 1. The disadvantages of the known devices are the sequential polling cycle, which significantly increases the time control, and also the fact that the device cannot form a test packet for system control. It is also known a functional control system of an automated control system, which contains the main and control power supply unit, power type switch, command device, logic blocks, output devices, actuators, actuator position sensors, control elements, magnetic amplifier, relay control. ohmic elements AND, OR, BAN

2. This device has the following disadvantages: a sequential control cycle leading to a significant increase in the control time, especially when controlling a large number of mechanisms; the absence of a check in the device in the event of a failure of any mechanism leads to an increase in the check time and the uncertainty of the malfunction during the monitoring process, and the absence in the alarm device of the control stages does not allow detection of a specific system malfunction. The closest technical solution to this invention is a device for diagnosing control systems, comprising a clock shaping unit, a code converter, a decoder, a serially connected first OR element, a distributor and a second OR element, as well as a third OR element, a first key and a relay time, connected by the output to the first inputs of the registration and display units

3. The disadvantage of this device is the lack of reliability of the diagnostic results. The purpose of the invention is to increase the diagnostics results - it is achieved by introducing an element NOT, a memory element, a second key and a pulse shaper into the device, the output of which is connected to the input of a time relay and the first input to the output of the second OR element and with one correct input the second input through the second key to the first input of the device and to the first input of the first OR element connected by the second input. Through the first key to the second input of the device and through the memory element to the second input of the display unit, and the third input Dami - with the first outputs of the decoder informational inputs of which are connected to the outputs of the code converter, and the second outputs - to the second inputs of the registration unit, with the first outputs of the distributor connected to the inputs of the clock shaping unit, and the second output to the fourth the inputs of the display unit. The drawing shows a functional diagram of the device, comprising a code converter 1, a registration unit 2, a memory element 3, a clock shaping unit 4, a time relay 5, a first key b, a decoder 7 with information 8 and control 9 inputs and with outputs 10 and 11, the element BAN 12, the memory element 13, the pulse shaper 14, the first 15, the second 16 and the third 17 elements OR, the elements AND 18, 19 and 20, the element NOT 21, the second key 22, the element NOT 23, indicators 24, 25 and 26, valve 27, diagnosable control system 28 and display unit 29, the device is working next in a way. Upon receipt of an input action on the input Control through key 6, element 3 and element 19, the indicator 24 is turned on. 24 The control is on, signaling that the system control has started. The same signal through the element OR 15 launches the distributor 2 7, which outputs the signal to block 4, in which the signal is generated, the first test cycle and this signal goes to the system 28, the signal from the output of the distributor 27 through the elements OR 16, 17 and shaper 14 starts relay 5 via element OR 16 decoder 1 is prepared for analyzing the combination of inputs to inputs B from system 28 through converter 1, In the case of proper cHCTevBd operation, the combination of input signals coincides with that laid in decoder 1, and corrects on a combination from one of the outputs 10 through the element OR 15 will go to the distributor 27, transferring it from the first cycle to the second, while the relay 5 starts working from the beginning of the new cycle. If the system works properly, then the device works similarly to the first cycle, At the end of the last test cycle, the signal from the last output of the distributor 27 through the element And 18 turns on the indicator 26 Normally and through the elements NOT 21, BAN 12, And 19 turns off the indicator 24 Control goes on, In the event of a malfunction in the system 28 by the response of the systems You will already have a combination that is different from a good one. In this case, relay 5, whose delay time is longer than the time required for the input action to be processed, triggers and switches on indicator 25 via elements 20 and 13 Failure and indicators in block 21, which mark the faulty combination This malfunctioning combination characterizes the malfunction and the location of its occurrence in the system 28. To continue the control, you must submit an input to the input. Continue monitoring While the indicators remain on, 24 Control is in progress and 25 Failure, indicating that the control has not been completed, but there has already been a failure. Signal from the input Continuation of control through the elements NOT 22 and OR 17, the driver 14 starts the relay 5 and switches the valve 27 to the next test cycle through the element OR 15. The indicators in block 2 go out. The indication of faults and the operation of the device in subsequent cycles is similar to that described above. After the last control cycle, the signal from the last output of the distributor through the elements is NOT 21, BAN 12 and 19 turns off the indicator 24 The control is on and the indicator 25 is still on Failure, This indicates that the control of the system has ended and that the system has failed. Thus, such an implementation of a device for diagnosing control systems makes it possible to expand the functionality of the device, i.e., in the case of a failure of some systems in the first monitoring cycles, to continue monitoring the systems in the remaining monitoring cycles without eliminating the malfunction that occurred in the first cycles . This saves control time and provides complete information on failures in all control cycles. Claims An apparatus for diagnosing control systems, comprising a clock shaping unit, a code converter,. the decoder, the first OR element in series, the distributor and the second OR element, as well as the third OR element, the first key and a time relay connected to the first inputs of the recording and display units, characterized in that, in order to increase the reliability of the diagnostic results, into the device the element NOT, the memory element, the second key and the pulse shaper are input, the output of which is connected to the time relay input, the first input is connected to the output of the second OR element and the decoder control input, and the second input is h Res second key to the first device and input to the first input of the first OR gate, a second input connected through a first switch to a second input of the device and through the memory element to the second input

display module, and the third inputs with the first outputs of the decoder, the information inputs of which are connected to the outputs of the code converter, and the second outputs - to the second inputs of the registration unit, the first outputs of the distributor connected to the inputs of the clock generation unit, and the second output - with the third and through the element NOT with the fourth inputs of the display unit.

Sources of information taken into account in the examination

1, USSR Author's Certificate No. 467331, cl. G 05 B 23/02, 1972,

2, USSR Author's Certificate No. 470795, cl. G 05 B 23/02, 1973.

five

3, Copyright certificate W 253377 / 18-24, cl. G 05 23/02, 1977 (prototype).