SU1341663A1 - Article counter - Google Patents

Abstract

The invention relates to a computing and information technology and is intended for automatic counting of products. The device has high functional reliability and allows automatic diagnostics of the health of its elements. The device contains a sensor 1, pulse shaper 2, counter 3, element OR 4, one-shot 5, 6 and 7, register 8, indicator 9, delay elements 10 and 11, triggers 12, 13 and 14, elements 15 and 16, prohibition element 17, a pulse series generator 18, reference element 19. Device diagnostics are performed by applying a test pulse from sensor 1. The entire counting path from sensor 1 to counter 3, including the last, 3 slug, is subjected to diagnostics. (L 00 4 O5 and so tie. I

Description

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The invention relates to a computing and information technology and is intended for automatic counting of products.

The purpose of the invention is to increase the functional reliability of the device by more fully covering it with dianostiku.

FIG. 1 shows a block diagram of the device; in fig. 2 examples of the implementation of the pulse train generator; in fig. 3 - functional diagram of the pulse former.

The device contains a sensor 1, a driver 2 pulses, a counter 3, the element OR 4, the first, second and third one-shot 5, 6 and 7, the register 8, the indicator 9, the first and second elements 10 and 11 of the delay the first, second and third triggers 1 13 and 14, the first and second elements AND 15 and 16, the element 17 prohibits the generator of the 18 series of pulses, the element of comparison.

The generator 18 of a series of pulses can be implemented on the counter 20 by a volume equal to the volume of the counter 3. The input of the counter through the prohibition element 21 is connected to the output of the generator 22. pulses, and the prohibiting input of the prohibition element is connected to the output of the counter 20 “The installation input of the counter 20 is connected via a single-oscillator 23, to the input of the generator 22 pulses.

Shaper 2 contains a threshold element 24, an element OR 25, an element 26 for a time delay, an element 2

the prohibition, element 28 of the moderator, the element of do sov, the first output of which is connected OR 29, the element 30 of the prohibition-and the element AND 31.

The device works as follows.

When the product appears in the working area of the sensor at the input of the counter 3, an counting pulse enters through the element OR 4, after which the driver 2 begins to diagnose the device by applying a diagnostic pulse to the input of sensor 1. This starts the generator 18 of the pulse series and before this through the one-shot 6 a pulse on the leading edge of the pulse at the output of the imager 2, which rewrites the state of the counter 3 to the register 8. After that, the counter 3 begins to receive pulses from the generators to the control input of the sensor, and a counter, characterized in that, in order to increase the functional reliability of the device,

45 elements of AND, OR, triggers, one-shot, delay elements, prohibition element, register, indicator, comparison element and pulse train generator, the first output form

5Q pulse pulses are connected to the inputs of the first and second single vibrators and to the input of the first delay element, the output of which is connected to the first input through a generator of a series of pulses

5g of the OR element and the third one-shot one-output of which is connected to the first input of the reference element, the second output of the pulse shaper is connected to the second input of the OR element,

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Rattor 18 series of pulses during the period of device diagnostics. The number of pulses in the series must be equal to the volume of the counter 3. If the counter is working during the diagnostics, it is correct, then after overflow (this fact is remembered by the trigger 12) it will come to the state from which it began to be diagnosed. This fact recognizes the comparison element 19 and is remembered by the trigger 13. The falling edge of the diagnostic pulse at the output of the driver 2 through one 5 vibrator 5 recognizes the state

flip-flops 12 and 13, and if they are triggered, and At the output of the element I 15, one appears, then trigger 14 is entered, signaling that the counting device is working. This signal, together with the health signal issued by the driver, fully characterizes the health of the device. If the element And 15 does not work (not

5 is entered into the triggers 12 and 13), then the trigger 14 is switched through the prohibition element 17 and the malfunction of the device counter (information storage) is turned on.

Thus, the invention allows a complete diagnosis of the device, which increases, as a result, the reliability of the accumulated and stored counting information.

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Claims (1)

Invention Formula A device for counting articles, comprising a sensor, the output of which is connected to the input of the pulse former, the first output of which is connected to the control input of the sensor, and a counter, characterized in that, in order to increase the functional reliability of the device, It has AND, OR, triggers, one-shot, delay elements, prohibit, register, indicator, comparison element and pulse train generator, the first output of the pulse driver is connected to the inputs of the first and second one-shot and to the input of the first delay element, the output of which is through the generator pulse series connected to the first input the element OR and the third one-shot, the output of which is connected to the first input of the comparison element, the second output of the pulse shaper is connected to the second input of the element OR, vspod 3134 which is connected to the input of the counter, the first outputs of which are connected to the second inputs of the comparison element and the first inputs of the register, the outputs of which are connected to the indicator inputs and to the third inputs of the comparison element, the second output of the counter and the output of the comparison element are connected to the first inputs of the first and second, respectively triggers, whose outputs through the first element AND under 1663 connected to the first inputs of the second element I and the prohibition element, the outputs of which are connected to the inputs of the third trigger; the output of the first one-shot is connected to the second inputs of the first and second triggers through the second delay element; the output of the first And-element prohibition, the output of the second one-shot is connected to the input of the register. ten entrance FIG. 2 Editor M, Dishyn Compiled by G. Usachev Tehred A. Kravchuk Order 4439/54 Edition 672 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Fia. J Corrector I. Muska