SU1465899A1 - Device for counting articles carried by conveyer - Google Patents

Abstract

The invention relates to information and computing technology and. It can be used as peripheral sensors in automated production control systems. The purpose of the invention is to increase the accuracy of the account. The device contains sensors 1, multiplexer 2, comparator 3, elements AND 4 and 5, elements OR 6, 7 and 8, counters, 9 and 10, a group of elements Hit, delay element 12, generator 13, one-shot 14, element BAN 15, the shift registers 16, the switches 17, and the triggers 18. The device performs the counting of the products, provided that the information is sent from all the sensors at the given times. 1 il.

Description

The invention relates to information and computer technology and can be used as peripheral sensors in automated data systems for operational production management.

The purpose of the invention is to improve the accuracy of counting by ensuring the formation of a counting signal only if the signals from the sensors coincide, I The drawing shows a structural diagram of the device.

The device contains sensors 1, a multiplexer 2, a comparator 3, the first and second elements And 4 and 5, the elements OR 6-8, the first and second counters 9 and 10, the group of elements And 11, the element 12 delay, the pulse generator 13, the one-shot 14, element BAN 15, shift registers 16, switches 17 to triggers 18.

The device operates as follows.

In the initial state, multiplexer 2 connects the first sensor 1 to the input of the comparator 3, while the comparator 3 from the output of the least significant bit of the counter 9 through the second element OR 7 allows the signal to be compared. When a part appears in the working area of the first sensor 1, the comparator trips and the pulse from its output passes: through the first element And 4 to information • ITl в;

h is the integral input of the first shift register 16, where under the action of the clock frequency from the pulse generator 13 it begins to move. After a delay · And the group of elements And 11. In the event that it does not work when the gating signal arrives at comparator 3, then the output of the PROHIBIT 15 element will display a product registration rejection signal, which, passing through the first element OR 6, will set register 16 to the initial state and gives a signal about the violation of the registration of the product. The one-shot 14 generates a signal from the gate signal of the comparator 3, which is reliably blocked by the signal at the output of the comparator 3 when it is triggered.

To save when forming the gate signal of the channel through which the gate signal passed, triggers 18 are used, which are cocked when the gate signal appears, at the output of the corresponding bit of the shift register 16 and are reset to the initial state when the response signal was generated by the comparator 3 from the output of the И element AND the group of elements And 11.

Thus, in the proposed device, the product is registered by the counter 10 from the output of the second element And 5, provided that from all the sensors at the given instant time there were signals about the product and a signal appeared at the last output of the counter 9. The counter 9 is reset as well as the shift register 16 *.

Claims (1)

The claims to of element 12, the counter 9 switches, which connects the comparator to the second sensor 1, at the same time the gating of the comparator from the least significant bit of the output of the first counter 9 disappears. · The gating time of the comparator (given by switches 17, where the signal || al from the shift register through the first switch 17 'Dement OR If: iy the time specified by the delay signal 3. Enter the comparator signal, switch counter 9 to the next sensor 1, enter in the next bit of register 16 shift units, which continues to move through register 16 shift a, and the erasure of this unit in this category of the shift register 16 from the output of the corresponding element, the OR element 8 and 7 it is comparably gated at the same time from the sensor of the product, then at output 50 a signal is generated at ne55 A device for counting piece items moved by a conveyor, containing sensors, the outputs of which are connected to the corresponding information inputs of the multiplexer, the output of which is connected to the first input of the comparator, the output of which is connected to the first input of the first AND element and to the inhibitory input of the FORBID element, the output of which is connected with the first input of the first OR element, a one-shot, the output of which is connected to the information input of the BAN element, the first counter, the outputs of which are connected to the control inputs of the multiplexer a, a second AND element, the output of which is connected to the input of the second counter, a second OR element and a delay element, characterized in that, in order to improve accuracy, a pulse generator, a third OR element, triggers, a group of AND elements, switches and registers are introduced into it shift, the low-order output of the first counter is connected to the first input of the second OR element and to the second input of the first AND element, the output of which is connected to the information inputs of each subsequent shift register, the trigger outputs are connected to the second inputs of spp elements And, the outputs of which are connected to the first installation inputs of the corresponding triggers and through the first make contact of the corresponding switch of the receiver, with the first installation input of the first shift register, jq the comparator output is connected to the first input of the second element And, to the first inputs of the group of elements And through the element delays - to the counting input of the first counter, the high-order output of which is connected to the second input of the second AND element, whose output is connected to the second input of the first OR element, the output of which connected to the first installation inputs of the first counter and the last shift register, the output of the pulse generator is connected to the clock inputs of all shift registers, the outputs of which, except the last, are connected to the information inputs of the corresponding shift registers and to the second installation inputs of the subsequent shift registers, the outputs of all shift registers through the second make contact of the corresponding switches are connected to the second installation inputs of the corresponding triggers and to the inputs of the third element OR, output to It is connected to the input of a single-shot device and to the second input of the second OR element, the output of which is connected to the second input of the comparator, the second installation input of the first counter is the device input, the output of the ZA25 PRET element is the device output.