SU955098A1

SU955098A1 - Device for ehtracting mahimum signal

Info

Publication number: SU955098A1
Application number: SU813250960A
Authority: SU
Inventors: Юрий Сергеевич Яковлев; Анин Матвеевич Матвеев; Владимир Георгиевич Лабзин
Original assignee: Чувашский государственный университет им.И.Н.Ульянова
Priority date: 1981-02-20
Filing date: 1981-02-20
Publication date: 1982-08-30

Description

(З) УСТРОЙСТВО ДЛЯ ВЬЩЕЛЕНИЯ МАКСИМАЛЬНОГО (W) A DEVICE FOR INCREASING THE MAXIMUM

1one

Изобретение относитс к автома тическому управлению и может быть использовано в автоматических системах регулировани с эпизодически затыкающимс контуром дл стабилизации регулируемых параметров нескольких однотипных объектов с помощью одного регул тора. The invention relates to automatic control and can be used in automatic control systems with an episodic stopping circuit for stabilizing the controlled parameters of several objects of the same type using a single controller.

. Известны устройства дл выделени максимального сигнала, примен емые р автоматических системах регулировани с эпизодически замыкающимс контуром, служащие дл управлени п-объектами с помощью одного регул тора , состо щие из 2п полуканалов, каждый из которых содержит усилитель выдел ющий диод и коммутирующие ключи 1.. There are known devices for extracting the maximum signal used by p automatic control systems with an episodically closing circuit, which are used to control n-objects using a single controller, consisting of 2n semi-channels, each of which contains an amplifier separating diode and switching keys 1.

Недостатком известных устройств вл етс то, 4to они осуществл ют переключение регул тора с одного объекта на другой до окончани переходного процесса в предыдущем контуре . Это увелииивает число включений СИГНАЛАA disadvantage of the known devices is that they 4to switch the controller from one object to another before the end of the transient process in the previous loop. This increases the number of ALARM turns on.

исполнительного механизма, что приводит к преждевременному его износу и снижает надежность системы регулировани .actuator, which leads to premature wear and reduces the reliability of the control system.

5 Наиболее близким по технической сущности к предлагаемому вл етс устройство дл выделени максимального сигнала, содержащее 2п полуканалов , каждый из которых состоит из5 The closest in technical essence to the present invention is a device for extracting a maximum signal containing 2n semi-channels, each of which consists of

JO усилител , выдел ющего диода, элемен та запрета, самоблокирующегрс реле, порогового элемента и нуль-органа 23Недостатком этого устройства вл етс его сло5кность и, следовательно,JO amplifier, isolating diode, prohibitory element, self-blocking relay, threshold element and null organ. The disadvantage of this device is its complexity and, therefore,

15 низка надежность.15 low reliability.

Цель изобретени - повышение надежности устройства.The purpose of the invention is to increase the reliability of the device.

Указанна цель достигаетс тем, что в каждый канал устройстваThis goal is achieved by the fact that in each channel of the device

Claims

20, to allocate the maximum signal, the first and second OR elements and the inhibit element are introduced, the first input of which is the device input, and the output is connected to the inputs of the amplifiers 39 half channels, the second outputs of the keys of each channel are connected to the inputs of the second OR element, each output of the corresponding inputs of the first OR elements of the remaining channels, and the output of the first OR elements is connected to the second input of the corresponding prohibition element. The drawing shows a block diagram of a maximum signal extraction device, designed for four adjustable parameters. The device in each channel contains a prohibition element 1, an inverting amplifier 2, a non-inverting amplifier 3, a separating diode, a separating diode 5, a load 6, a terminal block 7, a switching key 8, a switching key 9, a second element OR 10s the first element OR 11 ( indices with numbers mean channel numbers). The device works as follows. The deviations of the adjustable parameters through the prohibition elements 1 are fed to the inputs of inverting amplifiers 2 and non-inverting amplifiers 3, from where they go to the isolating diodes (and 5. The cathodes of the isolating diodes are connected to the load 6, to the second signal the maximum signal through the terminal block 7 on the regulating device. A logical signal appears on the anodes of the separating diodes: 1 - on that half channel on which it is maximum and positive, and O - on the other semi-channels. This signal goes to the input of switching keys 8 and 9. From the first output of the key, the signal enters the terminal block and turns on the corresponding actuator in one direction or another. The second inputs of the keys of each half-channel are connected to the inputs of the second elements OR 10. With logical 1 on one of the inputs of this element its output signal It enters the inputs of the first OR elements of the remaining 11 channels, while the output signal of this element affects the prohibition elements 1 of the other channels, which do not pass the input signal to the inputs of amplifiers of THIS channels. Suppose that the deviation A Ud in the first channel is maximal and positive. In this case, the discharge disk 5 will be open and current will flow through the load 6. The voltage drop across load 6 will be the highlighted maximum signal. It is transmitted through terminal block 7 to the regulating device. At the same time, a logical signal 1 is turned on at the anode of diode 5. The emitting diodes of the remaining semi-channels will be locked and the logical signal O will be at their anodes. Suppose now that the maximum deviation of AUg in the second channel has become. However, the transition process in the primary circuit has not yet ended, and the deviation A U has not yet become sufficiently small. In this case, the deviation D U does not fall on the inputs of the amplifiers of this channel, since the inhibiting signal acts on the element l-Prohibition. The ban will remain in effect until the end of the transient process in the first circuit, i.e., until Deviation A and / 1 equals 0. In this case, the prohibition is lifted, the deviation di is fed to the inputs of the corresponding amplifiers and a new maximum signal is released at load 6 , which will lead to switching the regulator to the second channel of the system. With a larger number of channels, the processes will occur similarly to that considered. The implementation of the invention will simplify the system, reduce the number of elements in it and, consequently, increase its reliability and facilitate maintenance. By increasing the reliability of the adjustment system and simplifying its commissioning and operation, an economic effect can be obtained. The implementation of the invention is possible by developing an attachment to the existing allocators of the maximum signal. Apparatus of the Invention A device for isolating a maximum signal containing 2n semi-channels, each of which consists of an amplifier, a separating diode and a key, the output of the amplifier being connected to the inputs of a key and a distinguishing diode, the output of the separating diode of each semi-channel connected to the load The first key outputs are

For the purpose of improving reliability, the first and second OR terminals and the prohibition element, the first input of which is an input of the device, and the output are connected to the inputs of amplifiers of the semi-channels, the second outputs of the keys of each the channel is connected to the inputs of the second element OR, you; the progress of each of which is connected to the corresponding inputs of the first elements OR of the other channels, and the output of the first elements OR of the second input of the corresponding barring ments.

Sources of information taken into account in the examination

one . USSR author's certificate N, cl. G 06 G 7/02, 1977 (prototype).

2. Yakovlev, Yu.S., et al. 3, Cheboksary, Publishing House of Chuvash State University, 1977.

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