SU1429144A1 - Device for counting unit articles - Google Patents

Abstract

The invention relates to the field of information and computer technology. The aim of the invention is to improve the accuracy of the account. The device contains measuring channels, each of which contains sensor 1, trigger 2, driver 3 pulses, delay elements 4 and 5 and prohibition element 6, in addition, the device contains the elements OR 9 and AND 12, frequency divider 10 and trigger 11, the Device allows you to fix the product only after moving it across all positions of the processing line, 1 sludge.

Description

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The invention relates to information and computing technology and leather to be used as peripheral sensors in automated production control systems.

The purpose of the Invention is to increase the counting accuracy by identifying the product not only by the signal size, but also by the sequence of moving the product from the processing position.

The drawing shows a structural device gheme. The device contains measuring channels that contain sensors 1 | product availability, trigger 2, a shaper 3 pulses, elements 4 and 5 I Delays, prohibition element 6, elements OR 7 “AND 8. In addition, the ICTBO device contains the element OR 9, the divider 10 frequencies, the trigger 11, the element | And 12 and the counter 13.

 The device works as follows.

In the initial state, all the triggers 2, the frequency divider 10 and the trigger 11 are set to the initial state. The trigger state 11 ensures the passage of a signal from the output of the last element OR 7 to the input of the counter 13.

When a product appears in front of the sensors, they trigger. When sensor 1 of the first channel turns on the trigger 2 of its channel, then after the appearance of the product it triggers before the subsequent sensor, then a signal is generated at the output of the element 8 of its channel, which triggers the trigger 2 of the subsequent channel. This continues until a counting signal is formed at the input of the counter 13. Moreover, since the trigger 11 is not energized, this signal is not blocked by the AND 12 element.

If a sensor 1 fails to operate, the trigger 2 of the subsequent channel is cocked from the output of the inhibit element 6 of this channel. This pulse is obtained by striking the leading edge of the trigger pulse of the given channel 2 and delaying this pulse on the signal delay element 5 by the time required for the product to move to this position from the previous position is such that in the event of the operation of this sensor 1

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it reliably blocks the signal allocated by the shaper of 3 pulses. When forming the signal at the output of the prohibition element 6, this signal goes through the element OR 9 to the input of the dividers: frequency 10, which is triggered only when its division ratio is reached. Trigger 11 is charged in this case, and the passage of the counting signal to counter 13 is blocked by element 12. The device is reset to the initial state when the trigger 2 of the last channel is set to initial state. In this case, the frequency divider 10 and the trigger 11 are reset. Thus, the proposed device monitors the movement of the product from position to position, and the failure of one (or several) sensors does not lead to failure of the device and only when the critical number of sensors fails. the counting signal is blocked for accumulation in the counter 13.

Claims (1)

Invention Formula A device for counting piece goods, containing a counter, in the first measuring channel the output of the sensor of product availability is connected to the first trigger input, in each measuring channel the trigger output is connected to the first input of the And element and through the serially connected pulse shaper and the first delay element to the first input of the element the prohibition, the output of the second delay element in the first measuring channel, is connected to the second trigger input, the output of the sensor presence of the product in each measuring channel, except the first and after One is connected to the second inputs of the element And and the element of the prohibition of the previous measuring channel; the output of the sensor of the product of the last measuring channel is connected to the second inputs of the elements And and prohibits its measuring channel to the analog, the output of the second delay element in each measuring channel, starting from the second, is connected to The first input of the trigger of its measuring channel, characterized in that, in order to increase the accuracy of the account, the elements OR, AND, the frequency divider and trigger are introduced into it, and each measuring channel is an OR element, the first input of which is connected to the output of the AND element, the second input of the OR element is connected to the output of the prohibition element of its measuring channel, the output of the OR element in each measuring channel except the last one is connected to the input of the second delay element of its measuring channel and the second trigger input of the subsequent measuring channel; the output of the element OR of the last measuring channel is connected to the input of the second delay element of its measuring channel; the inputs of the element OR are connected to the outputs of the inhibit elements of all measuring channels, the output of the element OR is connected to the first input of the frequency divider, the output of which is connected to the first input of the trigger, the second input of which and the second input of the frequency divider are connected to the output of the second delay element of the last measuring channel, the output of the trigger is the device output and is connected to the first input of the AND element, the output of which is connected to the counter, the second input of the AND element is connected to the output of the OR element of the last measuring channel.