SU970700A2

SU970700A2 - Logic redundancy device

Info

Publication number: SU970700A2
Application number: SU803009833A
Authority: SU
Inventors: Владимир Львович Гайдуков; Юрий Николаевич Родионов; Виктор Алексеевич Титов
Original assignee: За витель Ю.Н.Родионов и В.А.Титов
Priority date: 1980-12-02
Filing date: 1980-12-02
Publication date: 1982-10-30

Description

(54) ЛОГИЧЕСКОЕ РЕЗЕРВИРОВАННОЕ УСТРОЙСТВО(54) LOGICAL RESERVED DEVICE

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Изобретение относитс к автоматике и вычислительной технике и может быть использовано при синтезе устройств автоматического управлени повышенной надежности.The invention relates to automation and computing and can be used in the synthesis of automatic control devices of increased reliability.

По основному авт.св. W839059 известно логическое резервированное устройство, содержащее резервируемые блоки, попарно подсоединенные через ключевые элементы к элементам И, элементы неравнозначности, первые входы которых подключены к выходу элемента ИЛИ, выход которого вл етс выходом устройства, причем выходы резервируемых блоков соединены со вторыми входами соответствук дих элементов неравнозначности, выходы которых подключены к управл ющим входам соответствующих ключевых элементов, выходы элементов И соединены со входами элементов ИЛИ 11.According to the main auth. W839059 a logical redundant device is known that contains redundant blocks connected in pairs through key elements to AND elements, unequalities, the first inputs of which are connected to the output of the OR element, whose output is the output of the device, and the outputs of redundant blocks are connected to the second inputs of corresponding unequality elements The outputs of which are connected to the control inputs of the corresponding key elements, the outputs of the AND elements are connected to the inputs of the OR elements 11.

Недостаток известного устройства заключаетс в том, что имеюща с в нем информаци о наличии ошибки на выходах резервируемых блоков предназначена лишь дл формировани сигнала , разрывсоощего цепь прохождени ложной информации, и не используетс дл целей восстановлени ее непосредственно в резервируемых блоках. ЭтоA disadvantage of the known device is that the information therein on the presence of an error at the outputs of the reserved blocks is intended only to generate a signal that breaks the false information chain, and is not used for the purpose of restoring it directly to the reserved blocks. it

снижает функциональные возможности устройства и надежность восстановлени информации.reduces the functionality of the device and the reliability of information recovery.

Цель изобретени - повышение надежности восстановлени информации.The purpose of the invention is to increase the reliability of information recovery.

Указанна цель достигаетс тем, что в логическое резервированное устройство дополнительно в каждый канал введен двухвходовый ключ, инto формационный вход и выход которого соединен с выходом и контрольным входом резервируемого блока, а управл ющий вход - с выходом элемента неравнозначности .This goal is achieved by the fact that a two-input key is additionally inserted into a logical redundant device, the informational input and output of which is connected to the output and control input of the reserved block, and the control input to the output of the unequality element.

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На чертеже показана схема предлагаемого устройства.The drawing shows a diagram of the proposed device.

Устройство содержит резервируемые блоки 1, 2 и 3, элементы И 4, 5 и б, элемент ИЛИ 7, элементы неравнознач20 ности 8, 9 и 10, ключевые элементы 11, 12 и 13, управл ющие входы 14, 15 и 16 ключевых элементов, двухвходовые ключи 17, 13 и 19, контрольные входы 20, 21 и 22 резервируемых бло25 ков.The device contains redundant blocks 1, 2 and 3, elements AND 4, 5 and b, element OR 7, elements of unequalities 8, 9 and 10, key elements 11, 12 and 13, control inputs 14, 15 and 16 key elements, dual input keys 17, 13, and 19; control inputs 20, 21, and 22 redundant blocks.

У-стройство работает следующим .образом .The structure works as follows.

В исходном состо нии ключевые элементы 11, 12 и 13 замкнуты, а ключи In the initial state, the key elements 11, 12, and 13 are closed, and the keys

Claims

30 17j, 18 and 19 are closed. Information from the output of the reserved blocks 1, 2 and through the elements of AND 4, 5 and b and the element OR 7 enters the output of the device and one of the inputs of each inequality 3, .9 and 10, the input of which receives information from the output of the corresponding reserved blocks 1, 2 and 3. During normal operation, the two inputs of the unequalities 8, 9, and 10 have the same information, and the signal to the control inputs 14, 15, and 16 of the key elements is not received. The absence of a signal at the output of these unequalities 8, 9, and 10 means that the keys 17, 18, and 19 are kept in the closed state. In the case of cCo, for example, the output of the reserved block 1 receives false information, false information arrives at the other input of the inequality element 8, and a signal appears at its output that simultaneously arrives at the control input 14 of the key element 11 and at the control input key 17. In this case, the chain of passing false information from the output of the reserved block 1 is broken and the key 17 is opened. The false information from the output of the reserved block 1, the type of error is characteristic, is fed to its control input 20, which allows; To better diagnose the channel and eliminate the cause of the error, or restore (in case of failure) the correct information in the channel. The device works similarly when false information appears at the outputs of redundant blocks 2 and 3. Thus, the proposed device allows to fully use the information about the location and type of error both for interrupting the passage of false information and for the purpose of restoring it, which extends the functional capabilities and increases the reliability of information recovery in a logical redundant device. Claims of the invention Logical reserved device on auth.cv. No. 839059, characterized in that, in order to increase the integrity of information recovery, a two-input key is additionally inserted in each channel, the control input of which is connected to the output of the element, unequalities, and the information input - with the output of a redundant unit, the control input of which is connected to the output of the two-input key. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 839059, cl. H 03 K 19/23, 10: 09.79.