SU1698815A1 - Device for tolerance check of signal period variation rate - Google Patents

Abstract

The invention can be used in automatic control and management systems. The aim of the invention is to extend the functionality by providing a tolerant control of the rate of change of the signal period with possible interference with reliable detection of signal loss. The device for tolerance control of the rate of change of the period of the signal contains shapers 1-4 short pulses, elements OR 10-12, elements AND 13-15, a counter 16 pulses, a register 17 and a common bus. In order to achieve the goal, integrators 5-7 and threshold elements 8 and 9 are entered into the device. 3 Il.

Description

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Claims (1)

Claim A device for tolerance control of the rate of change of the signal period, containing the first, second, third and fourth drivers of short pulses, the first, second and third elements of OR, the first, second and third elements of And, the pulse counter, register and common bus, with the first, second and third the outputs of the device are, respectively, the outputs of the first, second, and third AND elements, the direct outputs of the register are connected to the inputs of the first, the inverse outputs of the register are connected to the inputs of the third, and the zero and inverters are direct outputs of the second the clear output of the first bits of the register, the information input of which is connected to the output of the pulse counter, the zero and first bits of the information input of which are connected to the common bus, and the counting input and the write input, respectively, to the output of the second and 5 third elements OR, connected to the input of the register record the output of the first OR element, the inputs of which are connected to the output of the first and the output of the third short-pulse shaper, the outputs of the second and the output of the third short-pulse-shaper are connected to the inputs of the second OR and to the inputs of the third OR element, the output of the first short-pulse shaper, the input of which is the input of the controlled signal, characterized in that, in order to expand functionality by providing tolerance control of the rate of change of the signal period with possible interference with reliable detection of signal loss, it introduced the first, second and third integrators, the first and second threshold elements, and the output of the first shaper of short pulses is connected to the input of the fourth shaper to pulses and to the control inputs of the second and third integrators, the first inputs of which are the fourth and fifth inputs of the device 10, respectively, the second and third inputs of which are the second and first inputs of the first integrator, the control input of which is connected to the inverse output of the fourth short pulse generator, and the output is to the second inputs of the first and third integrators, the outputs of which are connected respectively to the input of the first and second threshold elements, the inverse outputs of which are 20 sub yucheny respectively to the input and the second input of the third short-pulse. ....... Ί__m _____ I ______ and _________________ Г ~~ 1 _______: -------------- to Figure 2.