SU451083A1 - Device for controlling functional elements of discrete systems - Google Patents

Description

one

This invention relates to the field of computing.

There are known devices for controlling functional elements of discrete systems that contain a switch-distributor on the shift register and elements AND whose first inputs are connected to the corresponding outputs of the shift register, the second inputs are connected to the corresponding inputs of signals of the controlled switch-distributor elements, and the outputs are connected to the corresponding outputs of the switch -distributor, which through the first element OR is connected to the input of the measuring circuit.

All known devices allow the determination of the address of only one of the simultaneously failing elements.

The proposed device differs from the known ones in that it contains, by the number of monitored elements, a group of consecutively connected elements AND, memory elements and indicator lamps, a pulse shaper and a second OR element, whose inputs are connected respectively to the outputs of the measuring circuit and the first OR element, and the output is connected to the input of the pulse generator, connected by the output to the control input of the shift register of the switchboard, the information outputs of which are connected to the first inputs of the corresponding elements And connected by the second inputs to the output of the measuring circuit. The drawing shows a block diagram of a device for controlling functional elements of discrete systems.

The device contains a switch-distributor 1, an element OR 2, a measuring circuit 3, an element OR 4, a pulse shaper 5, elements AND 6, elements of memory 7 and indicator lamps 8. Switch-distributor 1 contains a shift register 9 and elements 10, inputs 11 -14 signals of controlled elements. The device works as follows.

The output signals of the controlled elements are fed to the inputs of 11 -14 signals of the controlled elements. Switch-distributor 1 in turn, starting with the input 11 of the signal of the controlled elements, connects

them through their elements AND 10 and the element OR 2 to the input of the measuring circuit 3, which analyzes the signal of the element under test and when its parameters deviate from the norm (or no signal), it triggers and gives

pulse.

 If the parameters of the monitored signal are within the specified limits, the pulse at the output of the measuring circuit 3 does not appear. Switching the switch-distributor 1 from one input to another is performed on the falling edge of pulse generator 5, which is triggered through an OR 4 element, either by the monitored signal itself, appearing at the output of the OR 2 element, or in its absence due to , the output signal of the measuring circuit 3.

Repeated switching of the switch-distributor 1 by a pulse from the output of the measuring circuit 3 in case the distorted signal at the controlled output is still sufficient for triggering is eliminated by appropriate construction of the pulse generator 5 (for example, when using a kip-relay for this purpose) selected with a large response time of the measuring circuit 3).

The shift register 9 of the switch-distributor 1 simultaneously with the elements And 10 alternately unlocks one of the inputs of the corresponding element And 6.

Pulses issued by measuring circuit 3 when checking faulty elements pass through that of elements 6, at whose input there is a permitting signal from shift register 9. At the same time, memory elements 7 at the output of elements 6 and 6 are set to the state when indicator lamps are lit 8. Thus, the addresses of the faulty elements are recorded.

After checking the input 14 of the signal of the monitored elements, the switch-distributor 1 returns again to the input of the signal of the monitored elements I, i.e. the operation cycle

the device, which covers the verification of all (in the reduced version - four) functional elements, is resumed.

Subject invention

A device for monitoring functional elements of discrete systems, comprising

switch-distributor on the shift register and elements AND, the first inputs of which are connected to the corresponding outputs of the shift register, the second inputs are connected to the corresponding inputs of signals of the controlled switch-distributor elements, and the outputs are connected to the corresponding outputs of the switch-distributor, which are connected through the first OR element the input of the measuring circuit, characterized in that, in order to expand the scope of application, it contains, by the number of controlled elements of the group, successively And ennyh elements, memory elements and indicator lamps, a pulse shaper

and the second OR element, whose inputs are connected respectively to the outputs of the measuring circuit and the first OR element, and the output is connected to the input of a pulse former connected to the control input of the shift register of the switchboard distributor, the information outputs of which are connected to the first inputs of the corresponding AND elements connected by the second inputs to the output of the measuring circuit.

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