SU769493A1

SU769493A1 - Device for diagnosis of faults of discrete objects

Info

Publication number: SU769493A1
Application number: SU782665192A
Authority: SU
Inventors: Сергей Александрович Каширин
Original assignee: Предприятие П/Я А-7162
Priority date: 1978-09-12
Filing date: 1978-09-12
Publication date: 1980-10-07

Description

1one

Изобретение относитс к автоматике и вычислительной технике и предназначено дл контрол и обнаружени неисправностей в логических узлах ЭВМ и других дискретных объектах.The invention relates to automation and computing, and is intended to monitor and detect faults in computer logic nodes and other discrete objects.

Известно устройство дл диагностики неисправностей в дискретных объектах 1, содержащее такторвый генератор имнульсов , комсиндрома, дешифратор, элементы ИЛИ, счетчики неисправностей, блок индикации неисправностей и генератор импульсов .A device for diagnosing faults in discrete objects 1 is known, which contains a tactor generator of impulses, a comma syndrome, a decoder, OR elements, fault counters, a fault indication unit and a pulse generator.

Наиболее близким по технической сущности к изобретению вл етс устройство дл диагностики неисправностей дискретных объектов 2, содержащее элемент ИЛИ и блок дешифрации результатов контрол , выход которого подключен через последовательно соединенные генератор импульсов и счетчик импульсов к выходам устройства.The closest in technical essence to the invention is a device for diagnosing malfunctions of discrete objects 2, which contains the OR element and the control results decryption unit, the output of which is connected through serially connected pulse generator and pulse counter to the device outputs.

Недостатком таких устройств вл етс их сложность.The disadvantage of such devices is their complexity.

Целью изобретени вл етс упрощение устройства.The aim of the invention is to simplify the device.

Указанна цель достигаетс тем, что предложенное устройство содержит последовательно соединенные блок инверторов, блок коммутации и блок селекторов, выхо,ды которого через элемент ИЛИ подключены к нервому входу блока дешифрации результатов контрол . Выходы счетчика импульсов подключены соответственно ко вторым входам блока селекторов и коThis goal is achieved by the fact that the proposed device contains a series-connected inverter unit, a switching unit and a selector unit, the outputs of which through the OR element are connected to the nerve input of the control results decryption unit. The outputs of the pulse counter are connected respectively to the second inputs of the selector unit and to

5 вторым входам блока дешифрации результатов контрол , а входы блока инверторов соединены с соответствующими входами устройства.5 second inputs of the decoding unit for control results, and the inputs of the inverter unit are connected to the corresponding inputs of the device.

На фиг. 1 дана структурна схемаFIG. 1 given structural scheme

Ю устройства, где обозначены генератор импульсов 1, счетчнк импульсов 2, объект диагностики 3, элемент ИЛИ 4, блок дешифрации результатов контрол 5, блок инверторов 6, блок коммутации 7 и блокDevice Yu, where the pulse generator 1, the pulse counter 2, the diagnostic object 3, the element OR 4, the decoding unit of the control results 5, the inverter unit 6, the switching unit 7 and the block

15 селекторов 8; на фиг. 2 - схема прохождени сигналов при сравнении реакции на одном из выходов объекта контрол с ее эталонным значением (в схеме использован селектор-мультипликатор типа 133КИ7 на15 selectors 8; in fig. 2 is a signal flow diagram when comparing the reaction at one of the outputs of the control object with its reference value (in the scheme a selector-multiplier of type 133KI7 is used on

20 8 входов).20 8 inputs).

Claims

The device works as follows. Generator 1 and counter 2 define sequences of binary combinations, which are test input actions for an object. The same sequence of binary combinations from the output of counter 2 goes to the address inputs of the selectors in block 8. The information inputs of the selectors are connected to the corresponding outputs of object 3 through blocks 6 and 7. The reactions of object 3 to the test sequences of input actions are known. 1Ch11 from each output of the unit 3 enters the node of the inverters of block 6 (see Fig. 2). At the outputs of this node, a binary code is formed, which enters the fixed contacts of block 7. A signal of a logical zero arrives at one of the fixed contacts, and a signal of a logical unit arrives at the other. When the response signal on the reverse changes, the signals on the non-moving contacts are inverted. By appropriate installation of the movable contacts of block 7, it is possible to ensure the presence of a “unit” signal at any of the inputs of the corresponding selector of block 8 when the response value of the control object is either “zero or” unit. Each selector unit 8 implements its output logic function K. X (, VV. VVV io ii a V V-lO ll-l2 9 In other words, the signal from one of the information inputs (Xi-f-Xg) passes to the output, depending on the code received at the address inputs Aio-f-Ai2. Given the data and response of each specific output of the object 3 to a known sequence of input-effects, it is possible to switch the information inputs of each selector of block 8 so that at the output of each of them, if the object 3 is operational, there is an information signal corresponding to the level “zero” faults - level " units for all possible sequences of impacts on an object 3. In the process of monitoring if an object 3 fails at one or several outputs of block 8, signals corresponding to level "1" are generated. As a result, the output of the OR 4 element produces a signal corresponding to "1" units, which is fed to the input of block 5. In block 5, the signal "Stop, arriving at generator 1" is generated, and the control results are deciphered. The effectiveness of the invention is to simplify the device in comparison with the prototype device by using a selector block. This makes it possible to exclude from the device a reference logic circuit, a unit for calculating the syndrome, a decryptor, OR elements and counters. Claim device for diagnosing faults of discrete objects, which contains an OR element, a control result decoding unit, the output of which is connected through a series-connected pulse generator and a pulse counter to the device outputs, characterized in that, in order to simplify the device, it contains series-connected inverters, a switching unit and a selector unit, whose outputs through the OR element are connected to the first input of the control results decryption unit, the outputs of the impulse counter cos podklyucheiy respectively to second inputs of selectors unit and to second inputs results deschifratsii control unit inputs block inverters are connected to respective inputs. Sources of information taken into account during the examination 1. USSR author's certificate No. 548862, cl. G 06F 11/00, 1977.

2. USSR author's certificate number 406197, cl. G 06F 11/00, 1974 (prototype).