SU1695342A1 - Device for counting number of articles - Google Patents

Abstract

The invention relates to computing and information technology. The aim of the invention is to increase the reliability of information generated by the device by storing the accumulated information during temporary outages of the supply voltage of the entire device. The device contains sensor 1, trigger 2, element OR 3, elements BANGE 4 and 5. counter 6, display unit 7, comparator 8 , drivers 15,16 and 18, delay elements 10-14, pulse generator 9, reprogrammable storage unit 17 and diode key 19. Counter 6 state will correspond to the code accumulated by the device before the supply voltage is turned off any device. 1 silt

Description

The invention relates to computing and information technology and can be used as a device for counting and registering products in discrete production systems.

The purpose of the invention is to increase the reliability of the device by storing the accumulated information during temporary interruptions of the supply voltage of the entire device,

The drawing shows a block diagram of the device.

The device contains a sensor 1, a trigger 2, an element OR 3, the first and second elements of the PROJECT 4 and 5, the counter 6, the display unit 7, the comparator 8, the pulse generator 9, the first - the fifth delay elements 10-14, the first and second drivers 15 and 16 pulses, reprogrammable storage unit 17, tert and driver 18 pulses and a diode switch 19.

The device works as follows.

When the power supply voltage of the entire device is turned on, the control signal at the initial setup input sets the initial state of flip-flop 2, counter 6 and the reprogrammable storage unit 17. When the power supply voltage of the entire device is turned on, the comparator 8 through element 14 and the BANE element 5 sets the selection input the operating mode of the reprogrammable storage unit 17 is a control signal (high supply voltage level), which gives it a recording mode. When this generator 9 pulses off the signal from the output of the trigger 2, which prevents the passage of any information on the chains: driver 16 pulses, the element BAN 4, delay element 12, trigger 2 and elements 12 and 13, the counter 6, It is also forbidden to pass information on chains: shaper 15, counter 6 and shaper 15, element 11, trigger 2,

When a signal appears at the output of sensor 1 about the occurrence of a product in the working area of sensor 1, this information through the OR element 3 begins to accumulate in counter 6. This counting information is displayed by block 7. Through element 10 and diode key 19, the same sensor signal 1 is received to the input-output reprogrammable storage unit. 17 and is recorded in its cells by addresses that are set to the address inputs of the reprogrammable storage unit 17 by a code signal at the output of the counter 6. Recording gating is performed by the shaper 18 after

setting the code signal at the output of the counter 6.

This continues until the supply voltage of the entire device disappears. At the same time, in the counter 6, the accumulated information is destroyed, and in the reprogrammable storage unit 17, the unit information values recorded therein are stored in the corresponding

storage cells.

When the supply voltage of the entire device is restored, the trigger 2 along the circuit, the comparator 8, the driver 15, the delay element 11, is switched to the state that enables the generator 9 to turn on the gate input and the control signal produced by the BANCH 5 element, which puts the unit 17 in read mode . At the same time, the counter 6 is reset to the initial state: comparator 8, driver 15, counter 6. The signal from generator 9 through the element OR 3 starts a smooth increase in the code signal at the output of counter 6. This code signal selects the information reading cell, the value of which (O or 1) enters the input-output of the reprogrammed memory section 17, Increased - „code signal on

The OUTPUT of the counter 6 continues until the input value of the reprogrammable storage unit 17 does not receive a zero value of the stored information. At the same time, the impulse generated by the shaper 16 and before this reliably blocking BANCH 4 element with a single value of the information outputted by the reprogrammable storage unit 17 at its input-output passes through the open BANNER element 4, which returns the trigger 2 to its initial state with the generator 9 turned off and transfer reprogrammable memory unit 17 in the recording mode. This

the pulse through the delay elements 12 and 10 is fed to the input of counter b, after which the counter 6 is moved one step back.

The state thus obtained

counter 6 corresponds to the code accumulated by the device before the power supply of the entire device was turned off.

Claims (1)

The invention of the Device for counting the number of products containing a sensor, the first and second pulse formers, the first, second, third delay elements, the first BAN element, the input of which is connected to the output of the second pulse shaper, and the output to the input of the third delay element, A trigger, a comparator and a counter with a display unit at the output, characterized in that, in order to increase the reliability of the device, a second element BAN, third pulse generator, element OR, fourth and the delayed elements, the reprogrammable memory block and the diode key, the sensor output is connected to the first input of the OR element and the serially connected first delay element and the diode key to the input-output of the reprogrammable memory block and the inhibitory input of the first BAN element, the output of the OR element is connected via a third driver pulses to the input of the gating of the reprogrammable storage unit and directly to the counting input of the counter, the outputs of which are connected to the address inputs of ne eprogrammiruemogo storage unit, the mode selection input of which is connected to the output of the second BANCH element, whose input is connected to the input of the fifth delay element, the output of the comparator is connected with the input of the fifth delay element and through the first pulse shaper connected to the first installation input of the counter and to the input of the second delay element, the output of which is connected to the information input of the trigger, the output of which is connected to the inhibit input of the second element BANNER and to the input of the pulse generator whose output is connected with the input of the second pulse former and with the second input of the OR element, the output of the third delay element is connected to the first setup input of the trigger and through the fourth delay element to the subtractive input of the counter, the installation input The reprogrammable storage unit and the second inputs of the counter and the trigger are the inputs of the initial setup of the device.