RU2407054C1 - Device for inspecting composition of inventory items - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: invention can be used in incoming inspection of inventory items, outgoing inspection when sending inventory items to a recipient, as well as inventory inspection of storage contents. The device has a reader with two control chips, a control unit having switching and indication elements, two multivibrators, two registers which convert a serial code into a parallel code, two comparators, a shift register, a delay element, a rectifier, two OR elements, two flip flops, a counter and two memory units.

EFFECT: broader functionalities and field of use of the device.

1 dwg

Description

The technical solution relates to computing, in particular to control devices. It can be used to check the composition of items upon their receipt for storage, issue to consumers, as well as for inventory control of storage facilities.

There are [1] monitoring systems based on the use of radio frequency identification (RHD) technology. They include electronic tags (chips) placed on the objects of control, and chip code readers - readers, for example, RA 900-1-01 (www.alpha1.ru) or RMA 900-9 (www.chirti.ru). Read data can be transmitted to a computer via a wired or radio channel. The use of a wired network is associated with significant costs, and the use of a radio channel - with the need to protect against the influence of radio interference.

Known devices [2, 3, 4], providing control over the presence and movement of material values. The disadvantage of the device [2] is the lack of a synchronization mechanism for the processes of reading and comparing data. The presence of multiple scanners and a single comparison unit requires the sequential receipt of control data from the scanners in the comparison unit, consistent with the receipt of data from the memory unit, of the permitted values of the codes of controlled items. The simultaneous receipt of signals from several scanners will not provide the implementation of the comparison function and, therefore, the control function.

The main disadvantage of the device [4] and the device [3], which is part of it in its entirety, is the absence in the data processing unit 1 of a mechanism for matching the joint operation of the generators 2 and 3. The formation of the output signal by the "And" 4 element is possible only with synchronous and common mode operation of these generators .

Analogs are also known [5, 6, 7], but the closest in technical essence to the claimed device is [8]. It contains a memory block, keys, delay elements, memory elements comparators, a subtractor, a multivibrator, an OR element, a nonlinearity block, an integrator, adders, multiplication blocks, division blocks, a trigger, and a timer. The disadvantages of the device [8], as well as the device [5, 6, 7], are limited functionality and scope.

The aim of the proposed technical solution is to expand the functionality and scope of the device. The goal is achieved by introducing into the composition of functional elements that allow to identify the objects of control, to evaluate in an automated mode the compliance of their actual composition and storage location with credentials, and also to register control data for subsequent correction of the enterprise database.

Monitoring items and their storage is based on the use of RFID technology. Controlled locations and items are equipped with chips. The degree of detail of the address part of the storage location (building-room-individual place, etc.) depends on the design features of the storage facilities. Control items are equipped with individual chips.

Control can be carried out hardware using the proposed device, a diagram of which is shown in the drawing.

The device contains a reader 1 with a pair of control chips 3, the numbers of which are maximum (max) and minimum (min) possible for indicating places and objects of storage; control unit 2, which includes the “Start” button 4, the “Non-compliance” indicator 5, the “Object taken into account” indicator 6, the first 7 and second 8 toggle switches, the “End of program” indicator 9 and the contact reset button 10; first register 11; a first multivibrator 12 generating a continuous pulse sequence; first trigger 13, first comparator 14, first OR circuit 15, delay element 16, valve 17 (equivalent of the prototype key), shift register 18, first memory block 19, waiting for the multivibrator 20 to generate single pulses; the second circuit OR 21, the second trigger 22, the counter 23, the second register 24, the second comparator 25 and the second memory block 26.

The device provides a sequential check of places (address part) and storage items, or only items subject to accounting depending on the setting of the control task. The operation of the device is similar to both checking the address and the subject part. Therefore, the following description of his work is limited to the consideration of the process of monitoring storage items.

The device provides the implementation of the following control options:

1. Input express control, the purpose of which is to register items received for storage, to replenish the database of the storage company.

2. Input control, carried out after entering the credentials in the enterprise database according to the supporting documents of the supplier.

3. Output control upon the issue of storage items to the recipient.

4. Inventory control of storage facilities.

The device operates as follows.

To implement express control, the first toggle switch 7 switches to the first position, providing a direct connection between the output of the reader 1 and the first input of the second OR circuit 21. Pressing the "Start" button 4 and the "Reset" button 10 starts the first multivibrator 12 and resets it with the output signal of the second of the memory unit 27. By moving the second toggle switch 8 to the “Disabled” position, the connection of the “Start” button 4 with the “Start” input of the first multivibrator 12 is broken. This ensures that some of the functional elements of the device that are not used are disabled this type of control. After introducing the reader 1 into the reading area of the chip code of the controlled item by pressing the "Start" button 4, reading is performed. As a result of this, the signal carrying the chip code from the output of the reader 1 through the first toggle switch 7 and the second OR circuit 21 enters the second memory block 26 and is stored. So registration of all presented subjects is carried out. The control results recorded in the second memory block 26 are transferred from its output to the enterprise database. This allows you to display them, verify with documentary data and evaluate the degree of coincidence.

The use of the device according to the second variant of control is preceded by its preparation for work. It includes the following: the first toggle switch 7 is set to the second position, providing a connection between the output of the reader 1 and the information input of the valve 17. The second toggle switch 8 is put into the “On” position to connect the second output of the Start button 4 and the first input (“Start” ) of the first multivibrator 12. By pressing buttons 4 and 10, the first multivibrator 12 is launched and the first 19 and second 26 memory blocks, counter 23, first 11 and second 24 registers are reset, and triggers 13 and 22 are brought to the zero state (or they keep the zero -being). From the second input of the device from the database of the storage company in the first memory block 19 are recorded the account numbers (codes) of the chip items taken for storage. In the penultimate (n-1) cell of the memory block 19, the code of the control chip 3 is used, which is used in emergency situations, and the last (n) cell is the code of the chip 3 "min" used to indicate the end of the monitoring program. In the second register 24 from the third input of the device, a number is recorded corresponding to the number of items assigned for storage.

During the control, reader 1 is introduced into the reading area of the chip code of the controlled item. By pressing the "Start" button 4, the chip code is read out and the first multivibrator 12 is put into operation. For one cycle, the multivibrator 12 generates a pulse sequence that allows a single polling of all n cells of the first memory block 19. The shift register 18 n + 1 pulse is translated in the initial (zero) state, and the multivibrator 12 is turned off. The repetition rate and duty cycle of the output pulses of the first multivibrator 12 should be such as to ensure not only the operation of the device, but also normal user perception of the control result. Each input pulse of the first multivibrator 12 goes directly to the second input of the first register 11, making it ready (zero) to receive the read chip code from reader 1, as well as to the first input of the shift register 18, switching it to poll the next cell of the first memory block 19 . Each of the n outputs of the shift register 18 corresponds to one cell of the memory block 19. The read account number of the monitored item from the first memory block 19 is supplied by a parallel code to the second input of the first comparator 14. At the same time, the signal l from the chip of the controlled object from the output of the reader 1 is supplied with a serial code to the first input of the first register 11 and to the information input of the gate 17. In the first register 11, the serial code is converted to parallel. The output signal of the first multivibrator 12, delayed by the delay element 16, is fed to the third input of the first register 11 and to the second input of the first trigger 13, bringing it to a zero state. By this signal, the control data from the first register 11 is transmitted to the first input of the first comparator 14. In the comparator 14, the accounting and read numbers of the item being checked are compared. The following options are possible.

1. The numbers match. At the first output of the comparator 14, a control signal appears, which brings the first trigger 13 to a single state, opens the first valve 17 and starts the waiting multivibrator 20. As a result, the “Object taken into account” indicator 6 turns on, the multivibrator 20 generates and transmits a single pulse to the input of the counter 23 , and the output signal of the reader 1 sequentially through the first toggle switch 7, valve 17 and the second circuit OR 21 is entered in the second memory block 26.

2. None of the account numbers matched the chip number. This corresponds to an emergency situation when an item equipped with a chip is presented for storage and is not included in the credentials. In this case, the control signal will appear on the second or third output of the first comparator 14, depending on the ratio of the accounting values and the read chip number. The output signal of the first comparator 14, passing through the first circuit OR 15, will be sent to the indicator "Mismatch" 5 during one reading cycle of the credentials of the first memory block 19 with a pulse rate of the first multivibrator 12.

3. The item submitted for storage is not equipped with a chip. In this case, the output signal of the reader 1 is not generated, the control signal does not appear at any of the outputs of the first comparator 14, indicators 5 and 6 remain not turned on during one operation cycle of the first multivibrator 12. If in this case a decision is made regarding acceptance for storage of this item, then for its designation the control chip 3 "max" is used. The presence of its code in the first memory block 19 will ensure, when comparing the read and accounting codes, the appearance of a control signal at the first output of the first comparator 14. As in the first considered embodiment, the chip code 3 is "max" sequentially through the toggle switch 7, valve 17 and the second OR circuit 21 will be transferred to the second memory block 26, and the indicator “Object taken into account” 6 will display the fact of registration of this item.

Each time with a positive control result, the waiting multivibrator 20 generates a single pulse, increasing the output number of the counter 23 per unit. In the second comparator 25, the output of the counter 23 and the second register 24 are compared. When they coincide, a control signal appears on the output of the second comparator 25, which transfers the second trigger 22 to a single state. As a result of this, the “End of program” indicator 9 is turned on. To fix this fact, a control chip 3 "min" is placed in the reading zone of reader 1. By pressing the “Start” button 4, the device is included in the last control cycle. As a result, the read chip code 3 "min" will be recorded in the second memory block 26. This completes the implementation of the second control option.

The use of the device and its operation in the third control variant differs from that considered only in the composition and content of the address and subject parts of the data recorded in the first memory block 19.

An inventory check of the contents of the repositories can be carried out similarly to the first or second control options. Accordingly, the preparation and operation of the device is carried out as reflected in the description of these options.

The output of the second memory block 26 provides the reading of the control results for their analysis and updating the contents of the database of the storage enterprise, and the use of flash drive as the block 26 will ensure regular interfacing with the computers of the storage enterprise.

The positive effect that the proposed technical solution provides is that the device allows you to control the composition and location of storage items, evaluate the compliance of control results with credentials, detect and record inconsistencies in the composition and storage location with credentials during storage, issue storage to consumers and inventory control of storage facilities.

The modern elemental base allows you to create a compact wearable version of the proposed device that is not connected to the data center with a cable line.

Information sources

1. R. Wont. Total automation. The magazine "In the world of science", April 2004.

2. Maltsev A.A. Utility Model No. 65668, IPC G06F 19/00, 2007.

3. Maltsev A.A. Utility Model No. 66829, IPC G06F 19/00, 2007.

4. Maltsev A.A. Utility model No. 66830, IPC G06F 19/00, 2007.

5. Grishin V.D., Moskvin B.V., Kollontay S.S. RF patent No. 2342706, IPC G07C 3/08, G06F 17/00, 2008.

6. Grishin V.D., Moskvin B.V., Chizhevsky A.V. The decision to grant a patent for an invention dated November 20, 2008 by application No. 2007106124/09 (006649), IPC G07C 3/08.

7. Grishin V.D., Pavlov A.N., Mikhailov E.P. RF patent No. 2343544, IPC G07C 3/08, 2009.

8. Grishin V.D., Kudryashov A.N., Timoshenko D.V. RF patent No. 2347272, IPC G07C 3/08, 2009.

Claims (1)

A device for recording and controlling the composition of storage items, containing a first memory block, the first input of which is the second input of the device, and the output is connected to the second input of the first comparator, the third output of which is connected to the second input of the first OR circuit, the first trigger, the first input of which is connected to the gate’s permissive input, a delay element, a waiting multivibrator and a second comparator, characterized in that a control unit is included in it, which includes a contact button “Start”, indicators “Non-compliance”, “О ekt taken into account "and" End of program ", the first and second toggle switches and contact" Reset "button; a reader with a pair of control chips, the information input of which is the first input of the device, the control input is connected to the first output of the Start button of the control unit, the second output of which is connected to the input of the second toggle switch of the control unit, the output of the reader is connected to the input of the first toggle switch of the control unit and to the first the input of the first register, the second input of which is connected directly to the input of the Reset button of the control unit, with the output of the first multivibrator and with the first input of the shift register, and through the delay element - from the second m is the input of the first trigger and with the third input of the first register, the output of which is connected to the first input of the first comparator, the second output of which through the first OR circuit is connected to the “Non-compliance” indicator of the control unit, and the first output is connected to the control input of the valve and to the input of the standby multivibrator, whose output is connected to the first input of the counter, the output of which is connected to the second input of the second comparator, the output of which is connected to the first input of the second trigger, and the first input is connected to the output of the second register, the first input One of which is the third input of the device, and the second input, together with the output of the Reset button of the control unit, with the second inputs of the counter, the second memory unit and the second trigger, is connected to the second input of the first memory unit, each of the n control inputs of which is individually connected to the corresponding of n outputs of the shift register, n + 1 output of which is connected to its second input and to the second input of the first multivibrator, the first input of which is connected to the output of the second toggle switch of the control unit, the “End of program” indicator It is connected to the output of the second trigger, the “Object taken into account” indicator is connected to the output of the first trigger, the first toggle switch is connected with the first input of the second OR circuit, and the second output with the information input of the valve, the output of which is connected to the second input of the second OR circuit, the output of which is connected to the first input of the second memory block, the output of which is the output of the device.