RU2811965C1 - Method and portable device for diagnostics of ncr 6687 recycling cassettes - Google Patents

Abstract

FIELD: measuring technology.

SUBSTANCE: method for diagnosing cash cassettes. The method is performed by a computing device. When implementing the method, a command is received to carry out diagnostics of the cash cassette, data is collected on the state of the optical sensors located in the cash cassette, and the presence of communication with them is determined. Next, determine the state of the sensor for controlling the pressure of the carriage to the clutches. If the sensor is in the open state, then a command is sent to the electric motor to lift the carriage as high as possible and activate the sensor. If the sensor is in the closed state, then the computing device proceeds to the next stage, which consists in interrogating the optical sensors located in the cash cassette and comparing data on the state of the sensors with reference data characterizing the states of these sensors when the carriage is in the highest position, to determine correctness of their operation. The reference data is determined by the computing device based on the cassette type data retrieved from the cassette memory.

EFFECT: expanding functionality by providing the ability to diagnose optical sensors installed in the cash cassette and increasing the diagnostic speed.

9 cl, 7 dwg

Description

TECHNICAL FIELD

[0001] The presented technical solution relates, in general, to the field of measurement technology, and in particular to portable diagnostic tools for cash cassettes, for example, NCR 6687 recycling cassettes.

BACKGROUND OF THE ART

[0002] A device for testing cash cassettes from KPECO is known from the prior art, which can be considered as a close analogue of the presented solution. The known device (hereinafter referred to as the stand) is a portable unit for testing recycling ATM cassettes with a slot for connecting the cassette and a screen for displaying information. The well-known stand provides the ability to place a cassette in it for testing all components of the cassette in automatic mode.

[0003] A portable device for servicing cash cassettes of a self-service device (US) is also known, disclosed in the utility model patent RU 192 804 U1, publ. 01.10.2019. A well-known portable device for servicing cash cassettes, containing: a housing, inside of which there are interconnected: a power module, a boost DC-DC converter, a microcontroller configured to read the parameters of the cassette, rewrite the parameters of the cassette and test the cassette for errors; on the housing are located: a graphic interface, interface for connecting a cassette, device control buttons.

[0004] At the same time, in known solutions there is no possibility of testing the cassette components separately, which significantly increases the diagnostic time of the cassette. Also, known solutions do not provide any information about the degree of contamination of the optical sensors of the cassette, or the correct operation of microswitches and other elements of the cassette. In addition, the presented algorithm for polling the mentioned sensors and microswitches increases the speed of diagnosing the cash cassette.

DISCLOSURE OF TECHNICAL SOLUTION

[0005] The technical problem or task posed in this technical solution is to create a new effective, simple and reliable portable device for diagnosing cash cassettes.

[0006] The technical result is the creation of a portable device with expanded functionality for diagnosing a cash cassette.

[0007] The specified technical result is achieved by implementing a method for diagnosing cash cassettes, performed by at least one computing device, containing the steps of:

- receive a command to carry out diagnostics of the cash cassette;

- collect data on the state of optical sensors located in the cash cassette;

- determine the presence of communication with the mentioned sensors based on the data obtained at the previous stage;

- determine the state of the sensor designed to control the pressure of the carriage to the clutches, and if data on the state of the sensor indicate that the said sensor is in a closed state, i.e. the beam of light emitted by said sensor is blocked, then the computing device proceeds to the next step, and if the sensor status data indicates that said sensor is in an open state, i.e. the beam of light emitted by the said sensor is not blocked, then a command is sent to the electric motor to lift the carriage as high as possible and activate the said sensor;

- interrogate optical sensors located in the cash cassette and compare data on the state of said sensors with reference data characterizing the state of these sensors when the carriage is in the maximum upper position, to determine the correctness of their operation, and said reference data is determined by the computing device based on data about type of cassette removed from the cassette memory.

[0008] In one of the particular examples of the method, additional steps are performed in which:

- collect data on the state of microswitches located in the cash cassette;

- comparing data on the state of the microswitches with reference data to determine the correctness of their operation, wherein said reference data is determined by the computing device based on data about the type of cassette retrieved from the cassette memory.

[0009] In another particular example of the method, the steps are additionally performed in which:

- determine the presence of a solenoid in the cassette based on data about the type of cassette retrieved from the cassette memory;

- collect data on the state of the sensor designed to monitor the operation of the solenoid;

- based on data on the state of the said sensor, the correct operation of the solenoid is determined.

[0010] In another particular embodiment of the method, a battery diagnostic step is additionally performed.

[0011] In another particular example of the method, the steps are additionally performed in which:

- generate a command to turn on the electric motor and lower the carriage down to the “cassette full” position;

- determine the change in the state of the sensor designed to monitor the position of the carriage in the “cassette full” position;

- send a command to the electric motor to turn it off;

- polling the state of at least one additional sensor;

- compare the state of at least one additional sensor with reference data characterizing the state of the sensors when the carriage is in the “cassette full” position to determine the correctness of its operation.

[0012] In another particular example of the method, the steps are additionally performed in which:

- form a command to turn on the electric motor and move the carriage up to the banknote dispensing position;

- determine the change in the state of the sensor designed to control the position of the carriage in the position of issuing notes;

- send a command to the electric motor to turn it off;

- generate a command to turn on the solenoid to unlock the mechanism for flipping bills;

- generates a command to the electric motor to turn it on, as a result of which the shafts with rollers for drawing bills also rotate, on which there is a disk with slots through which rays of light pass, emitted by a sensor designed to control the operation of the electric motor in drawing bills along the guides for receiving and issuing bills ;

- collect data on the state of said sensor;

- based on data on the state of the said sensor, the correctness of its operation is determined.

[0013] In another particular example of the method, the steps are additionally performed in which:

- send a command to turn on the electric motor to move the carriage to the position for accepting bills;

- determine the change in the state of the sensor designed to control the position of the platform for stacking banknotes, from closed to open;

- generate a command to turn on the solenoid to unlock the mechanism for flipping bills;

- determine the presence of a bill on the means of entering bills into the cassette;

- generate a command for the electric motor of the drive for drawing bills along the guides for accepting bills;

- determine the change in the state of the sensor designed to control the presence of bills on the edge of the area for stacking bills farthest from the guides for accepting and issuing bills, or the sensor designed to control the presence of bills at the edge of the area for placing bills closest to the guides for receiving and issuing bills, to a closed one the time interval specified by the developer after starting the electric motor;

- send a command to the electric motor of the bill pulling drive and the solenoid to turn them off.

[0014] In another particular example of the method, the steps are additionally performed in which:

- send a command to the electric motor to turn it on and move the carriage to the clutches to the position of issuing bills;

- determine the change in the state of the sensor designed to control the pressure of the carriage to the clutches;

- generate a command to turn on the solenoid to unlock the mechanism for flipping bills;

- send a command to the electric motor of the bill drawing drive to issue a bill;

- interrogate the sensor designed to control the movement of bills along the guides, located closer to the means of entering bills into the cassette;

determine the change in the said sensor after turning on the drive electric motor for a time specified by the developer;

- send a command to the electric motor of the bill pulling drive and the solenoid to turn them off.

[0015] In another preferred embodiment of the claimed solution, a portable device for diagnosing cash cassettes is presented, containing:

- a housing containing a computing device and a power module connected to each other;

- a slot for installing a cash cassette connected to the body;

- an interface for connecting a cash cassette installed in the said slot to a computing device;

- an electric motor to control the drive for drawing bills along guides intended for receiving and issuing bills;

- an electric motor to control the drive of the bill pressing board (carriage); wherein the computing device is configured to implement the above method.

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features and advantages of the present technical solution will become apparent from the following detailed description and the accompanying drawings, in which:

[0017] In FIG. Figure 1 shows an example image of a portable device for diagnosing cash cassettes.

[0018] In FIG. Figure 2 shows an example image of a portable device for diagnosing cash cassettes (top view).

[0019] In FIG. Figure 3 shows an example of a layout of sensors in a cash cassette.

[0020] In FIG. Figure 4 shows an example of the location of optocoupler D7 and sector wheel 7 in a cash cassette.

[0021] In FIG. Figure 5 shows an example of an image of a cash cassette body with elements placed in it.

[0022] In FIG. Figure 6 shows an example of an image of the cash cassette body with the elements placed in it (rear view with the rear wall removed).

[0023] In FIG. 7 shows an example of a general view of a computing device.

IMPLEMENTATION OF TECHNICAL SOLUTION

[0024] The concepts and terms necessary to understand this technical solution will be described below.

[0025] In this technical solution, a system means, including a computer system, a computer (electronic computer), CNC (computer numerical control), PLC (programmable logic controller), computerized control systems and any other devices capable of performing a given task. , a clearly defined sequence of operations (actions, instructions).

[0026] By command processing device is meant an electronic unit, a computing device, or an integrated circuit (microprocessor) that executes machine instructions (programs).

[0027] An instruction processing device reads and executes machine instructions (programs) from one or more storage devices. Storage devices can include, but are not limited to, hard drives (HDD), flash memory, ROM (read-only memory), solid-state drives (SSD), and optical drives.

[0028] Program - a sequence of instructions intended for execution by a computer control device or command processing device.

[0029] A signal is a material embodiment of a message for use in the transmission, processing and storage of information.

[0030] Logic element - an element that implements certain logical dependencies between input and output signals. Logic elements are usually used to construct logical circuits of computers and discrete automatic monitoring and control circuits. All types of logical elements, regardless of their physical nature, are characterized by discrete values of input and output signals.

[0031] A DIP switch is a manual electrical switch that is housed along with several other switches in a dual in-line package (DIP) package.

[0032] Optocoupler - an electronic device consisting of a light emitter (usually an LED, in early products - a miniature incandescent lamp) and a photodetector (bipolar and field-effect phototransistors, photodiodes, photothyristors, photoresistors), connected by an optical channel and usually combined in a common housing .

[0033] A data packet is a single message formed according to certain rules, consisting of a series of signals, transmitted at clearly defined time intervals via the RS 422 interface. The structure of the data packet is regulated by the standard of the communication interface used.

[0034] According to the diagrams shown in FIGS. 1 and fig. 2, a device for diagnosing cash cassettes, for example, recycling cassettes US, contains: housing 1; compartment 2 for power supply; slot 3 for installing a US cassette, in which interface 4 is located for connecting, for example, a recycling US cassette; as well as two electric motors 5 and 6. The body 1 contains controls for the device and information display: control buttons and a display.

[0035] The mentioned elements of the device for diagnosing cash cassettes are connected to each other using a wide range of assembly operations, for example, screwing, joining, soldering, riveting, etc., depending on the most suitable method of fastening the elements.

[0036] The housing 1 and slot 3 may be made from a wide variety of known materials, such as, but not limited to, metal, impact resistant polymers, other impact resistant materials, and the like. Housing 1 and slot 3 can be made shock-resistant, which increases their wear resistance and service life.

[0037] The display may be, but is not limited to, a liquid crystal display (LCD), a touch display, an LED screen (OLED, AMOLED), or the like. The display is designed to display the necessary information to interact with the device.

[0038] The electric motor 5 of the drive for pulling bills along the guides for receiving and issuing bills is responsible for pulling bills along the guides, leafing and placing bills in the cassette. The electric motor 5 itself is located in the slot of the device for diagnosing cash cassettes, and the elements driven by this electric motor are located in the cassette. The electric motor 5 can rotate in two directions, in particular in the first direction to remove bills from the cassette or in the second direction to stack bills in the cassette.

[0039] Electric motor 6 drives the bill pressing board. Responsible for moving the bill clamping board inside the cassette. The electric motor 6 itself is located in slot 3 of the device, and the elements driven by this electric motor 6 are located in the cassette. The electric motor 6 can rotate in two directions to move the carriage (bill pressing board 8) up or down inside the cassette.

[0040] Interface 4 for connecting the cash cassette may be a specialized connector, for example, a proprietary twenty-nine pin manufactured by J.S.T. Mfg. So. This interface contains: power lines for the electronic components of the cassette, a line for launching the electronic components of the cassette, a line for rebooting the electronic components of the cassette, an RS 422 communication interface, which is responsible for receiving signals from the cassette sensors, containing 15 communication lines. In the following it will be described which specific sensors can be polled directly through the interface via the specified communication lines.

[0041] The RS 422 communication interface is designed to interface the computing device located in the device for diagnosing cash cassettes with the cassette controller, and the communication line is designed to transmit signals over the corresponding physical medium between interface subscribers.

[0042] To power the elements, the cash cassette diagnostic device is equipped with a power module 2, for example, a 12 V power supply with a minimum power of 120 W, as well as a built-in 12 V → 5 V power converter.

[0043] To control the operation of the device for diagnosing cash cassettes, it may be equipped with a computing device, which is the main computing unit of the device, which can be implemented on the basis of, but not limited to, a processor, a controller, a microcontroller, or the like. The computing device is designed to process signals from optical sensors connected directly, generate and process data packets via the RS 422 interface, process signals from device buttons, control the display and control electric motors. By forming data packets in a certain way via the RS 422 interface, the computing device processes: signals from optical sensors not directly connected to the computing device; signals from DIP switches, microswitches, controls the charge of the internal battery of the cassette, and also controls the reading and writing of data into the internal memory of the cassette, controls the operation of the solenoid.

[0044] Using optical sensors installed in a cash cassette, it is possible to determine the position of the internal mechanisms, as well as the state of the transport paths of the cassette.

[0045] The cash cassette contains 12 optical sensors and 2 microswitches. Their number may be more or less, depending on the modification of the cassette. The number of sensors to be checked and the sequence of checking the sensors can be specified in the firmware of the computing device. During complex testing of the cassette (“algorithm 1” + “algorithm 2”), each of the sensors is checked, both in the “sensor open” position (i.e. when the counting beam emitted by the sensor does not overlap) and in the “sensor closed” position "(i.e. when the counting beam emitted by the sensor does not overlap). Checking the sensor is a comparison of the state of the sensor in the “open” or “closed” position at a certain position of the mechanism with a “reference” working cassette.

[0046] The computing device supports polling the status of the following sensors:

- sensor D1, designed to control the position of the area for stacking banknotes;

- sensor D2, designed to control the pressure of the carriage to the clutches;

- sensor D3, designed to control the movement of banknotes along the guides, located in the area of the friction mechanism;

- sensor D4, designed to control the position of the carriage in the banknote dispensing position;

- sensor D5, designed to monitor the position of the carriage in the “running out of space” position;

- sensor D6, designed to monitor the position of the carriage in the “cassette full” position;

- sensor D7, designed to control the operation of the electric motor 5 for drawing bills along the guides for receiving and issuing bills, which is an optocoupler with a sector disk 7 placed between it (see Fig. 7), which generates alternating signals from the optocoupler when the motor and disk 7 rotate ;

-sensor D8, designed to monitor the operation of the solenoid, the emitted beam of light of which is blocked when the solenoid is turned on;

- sensor D9, designed to monitor the presence of bills on the edge of the area for stacking bills farthest from the bill receiving and dispensing guides;

- sensor D10, designed to monitor the presence of banknotes on the edge of the banknote stacking area closest to the banknote receiving and dispensing guides;

- sensor D11, designed to control the movement of bills along the guides, located closer to the means of entering bills into the cassette;

- sensor D12, designed to control the movement of bills along the guides, located closer to the mechanism for folding/stacking bills in the cassette.

[0047] The computing device also supports polling the status of the following microswitches:

- microswitch MK1, designed to control the removal of the mechanical lock of the cassette, and the lock is removed when the cassette is installed in a special slot, and MK1 goes into the closed state;

- microswitch MK2, designed to control the state of the cassette door, which is in the closed state when the cassette door is open.

[0048] Communication channels intended for polling sensors D2, D3, D9, D10, D11, D12 are output directly to the cassette connector, and their status is read directly by the computing device. Sensors D1, D4, D5, D6, D7, D8, as well as microswitches MK1 and MK2 are connected to the cassette controller and their status is read by generating a corresponding request to the cassette controller.

[0049] Also located in the cassette (see Fig. 5, 6) are the following actuators and elements:

- Bill pressing board 8 (carriage), designed to press a stack of bills to the friction mechanism;

- DIP switches 9, designed to encode the parameters of the cassette, for example, the denomination of the banknotes being inserted;

An integrated circuit 11 containing a cassette controller designed to process signals from some optical sensors, microswitches, DIP switches and solenoid control;

- A platform for placing bills in a cassette, designed for positioning accepted bills and placing them in a stack;

- Friction mechanism 10, designed for leafing banknotes individually from a pack placed in a cassette, containing pulling and separating rollers, as well as leafing elements;

- Solenoid 12 for blocking the bill folding mechanism, connected to the cassette controller, which is activated using a command via the RS422 communication interface (present depending on the cassette configuration).

[0050] An RS422 communication command is a packet of data recognized by the cassette computing device as an immediate instruction for execution. After executing the command, the cassette controller generates a response data packet, which is sent to the computing device located in the said diagnostic device. This packet contains data about the progress of the command or other requested information.

[0051] There are several modifications of compatible cassettes with a device for diagnosing cash cassettes, including NCR 6687 recycling cassettes. The said device automatically recognizes the type of cassette installed, for example, by serial number or catalog number, and also adjusts its operation depending on the type cassette.

[0052] When installing a cassette in slot 3 of the device and connecting the cassette connector to interface 4 to connect a cash cassette, the computing device reads the cassette parameters.

[0053] Diagnostics of the cash cassette is carried out as follows. The user places the cash cassette in slot 3 and, using buttons located on body 1, selects the diagnostic algorithm for the cash cassette. The command that starts the diagnostic algorithm, after pressing the button, enters the computing device located in the device for diagnosing cash cassettes, which, based on the data contained in the command, starts the cassette diagnostic procedure.

[0054] For example, based on the data contained in the command, the computing device performs the following diagnostic steps (eg, a first diagnostic algorithm). During this diagnostic, the internal mechanisms of the cassette, as well as sensors, are checked. If an error is detected during the execution of the algorithm, the algorithm is interrupted and the user is given an error number and a brief description of it.

[0055] At the first stage of cassette diagnostics, the computing device generates a command via the RS422 communication interface to the cassette controller requesting the status of sensors and microswitches. In response to the received command, the said controller sends to the computing device data on the state of the sensors and microswitches, which can be collected by known methods after receiving the said command or at any other time in accordance with the algorithm incorporated into the controller by the developer. Based on the received data on the state of sensors and microswitches, the computing device determines the presence of communication between the cassette controller, sensors and switches via the RS422 protocol.

[0056] In particular, to determine the presence of communication between the sensor cartridge controller and the switches, the computing device may be configured to retrieve data about the catalog number and type of installed cartridge from the internal memory of the cartridge via an appropriate interface. Next, based on the type of cassette, the computing device determines a list of sensors and switches of the cassette, for example, by accessing the memory with which the computing device may be equipped and in which data about the types of cassettes, lists of sensors and switches for the mentioned types of cassettes, as well as reference data on the state of the mentioned sensors and microswitches.

[0057] Next, the computing device extracts sensor and microswitch identifiers from the received sensor and microswitch state data and compares them with the list of sensors and switches on the cassette. If, as a result of comparison, the computing device determines that the data on the state of sensors and microswitches does not contain at least one sensor or microswitch identifier from the mentioned list, then the computing device interrupts the diagnostics and displays information about an error during diagnostics on the display of the device for diagnosing cash cassettes , in particular about the lack of communication with a sensor or microswitch whose identifier is not in the status data.

[0058] If, as a result of comparison, the computing device determines the presence of communication with all sensors and microswitches, then the computing device extracts information about the state of the microswitches from the received data about the state of the microswitches and compares it with the reference data about the state of the microswitches. The microswitch state reference data may indicate, for example, that MK1 should be in the closed state and MK2 should be in the open state.

[0059] If the computing device determines that the state information of at least one microswitch does not correspond to the reference data, the computing device aborts the diagnosis and displays on the display of the cash cassette diagnostic device information about the diagnostic error, in particular that the state at least one switch does not correspond to the specified reference state. If the computing device determines that the states of the microswitches correspond to the specified reference states, i.e. microswitches work correctly, then the computing device determines the presence of solenoid 12 in the cassette.

[0060] To determine the presence of solenoid 12, the computing device accesses the memory with which it is equipped and in which information about the types of cassettes and the presence of a solenoid in these types of cassettes is previously stored by the developer. If the computing device determines that there is no solenoid in the installed cassette, then it proceeds to the stage of checking the status of the sensors.

[0061] If the computing device determines the presence of a solenoid in the installed cassette, then it generates a command via the communication interface to turn on the solenoid 12 and polls the status of sensor D8. When turned on, solenoid 12 retracts the “flag”, which blocks the beam of light emitted by sensor D8, as a result of which its open/closed state changes. The data on the state of the sensor D8 is compared by the computing device with the reference data and if the data on the state of the sensor D8 coincides with the reference data of this sensor, i.e. after turning on the solenoid 12, the state of the sensor D8 has not changed, the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about an error during diagnostics, in particular, an error in the operation of solenoid 12 or sensor D8. If the status data of the D8 sensor does not match the reference data of this sensor, i.e. after turning on solenoid 12, the state of sensor D8 has changed, then the computing device determines the operation of solenoid 12 and sensor D8 as correct and proceeds to the next diagnostic stage and generates a command via the communication interface to turn off solenoid 12.

[0062] Next, the computing device generates a command via the communication interface to the controller to check, using known methods, the presence of voltage in the internal battery of the cassette. If the computing device, based on the voltage value, determines that the battery is low, the computing device interrupts the diagnostics and displays on the display of the cash cassette diagnostic device a diagnostic error message, in particular, a message that the cassette battery is low. If the computing device determines that the voltage value corresponds to the norm, i.e. reference value, then the computing device proceeds to check sensor D2.

[0063] To test sensor D2, the computing device determines its state based on the received sensor state data. If the status information of sensor D2 indicates that sensor D2 is in the closed state, i.e. carriage 8 blocks the beam of light emitted by sensor D2, then the computing device proceeds to diagnose other sensors. If the status information of sensor D2 indicates that sensor D2 is in the closed state, i.e. carriage 8 does not block the beam of light emitted by sensor D2, then the computing device sends a command to electric motor 6 to lift the carriage as high as possible and activate sensor D2. If, after the time specified by the developer (for example, 5 seconds), the carriage has not been raised as high as possible and sensor D2 has not changed its state from open to closed, then the computing device interrupts the diagnostics and displays information about an error during diagnostics, in particular, information about the presence of an error in the operation of boat 8 or sensor D2. If, before the time specified by the developer expires, the light beam emitted by sensor D2 is blocked, i.e. the sensor changes its state to closed, then the computing device determines the operation of the boat 8 or sensor D2 as correct and sends a command to turn off the electric motor 6, after which the computing device proceeds to the next diagnostic step.

[0064] At the next step, the computing device, through the communication interface or controller, queries the states of sensors D1, D2, D3, D4, D5, D6, D9, D10, D11, D12 and compares information about the states of the said sensors with reference data characterizing the states of these sensors when carriage 8 is in the maximum upper position. If the information about the state of at least one sensor differs from the reference data, then the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about an error during diagnostics, in particular, information about the presence of an error in the operation of the sensor, information about the state of which different from the reference data.

[0065] If the information about the state of the sensors does not differ from the reference data, then the computing device determines the operation of the said sensors as correct and generates a command to turn on the electric motor 6 and lower the carriage 8 down to the “cassette full” position, as a result of which the carriage 8 blocks the light beam, generated by sensor D6, and changes its state to closed. Once the computing device determines that the state of the sensor D6 has changed, it sends a command to the electric motor 6 to turn it off. If sensor D6 does not operate within the time specified by the developer, for example, 5 seconds, then the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about an error during diagnostics, in particular, information about the presence of an error in the operation of the electric motor 6 or the sensor D6.

[0066] After the carriage 8 has descended to the “cassette full” position, the computing device queries the state of sensors D1, D2, D3, D9, D10 and compares information about the state of the said sensors with reference data characterizing the states of these sensors when the carriage 8 is located in the “cassette full” position. If information about the state of at least one sensor differs from the reference data, then the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about an error during diagnostics, in particular, information about the presence of an error in the operation of the sensor, information about the state of which differs from the reference data.

[0067] If the information about the state of the sensors does not differ from the reference data, then the computing device determines the operation of the said sensors as correct and generates a command to the controller to turn on the electric motor 6 and move the carriage 8 up to the bill dispensing position, as a result of which the carriage 8 blocks the light beam, generated by sensor D4, and changes its state to closed. Once the computing device determines that the state of the sensor D4 has changed, it sends a command to the electric motor 6 to turn it off. If the sensor does not operate within the time specified by the developer, for example, 5 seconds, then the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about an error during diagnostics, in particular, information about the presence of an error in the operation of cutter 8 or sensor D4 .

[0068] After the carriage 8 has descended to the bill dispensing position, the computing device generates a command via the communication interface to turn on the solenoid 12 to unlock the bill folding mechanism, after which it generates a command to the electric motor 5 to turn it on and polls the sensor D7. The mentioned electric motor 5, after switching on, begins to rotate in a given direction, as a result of which the shafts with rollers for drawing bills also rotate, on which there is a disk 7 with slots through which rays of light emitted by the sensor D7 pass, as a result of which the sensor D7 is triggered, and the status data sensor D7 are supplied to the computing device for storage in the memory with which said device is equipped. Once the computing device has determined that the sensor was in both the “open” and “closed” states, i.e. the mentioned sensor works correctly, it generates a command to the electric motor 5 to turn it off, and also sends a command via the communication interface to the solenoid 12 to turn it off, after which the computing device displays the test results on the display of the device for diagnosing cash cassettes, in particular, indicating a successful passing cassette diagnostics.

[0069] If, for a given time interval, for example, 3 seconds, sensor D7 did not accept one of the designated states, i.e. The computing device has determined that sensor D7 was not in the open or closed state, then the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about an error during diagnostics, in particular, information about the presence of an error in the operation of sensor D7.

[0070] Also, the user, using buttons located on the body 1, can select the second algorithm for diagnosing the cash cassette. During this algorithm, the acceptance and issuance of bills, the guides for accepting and issuing bills, the mechanism for placing bills in the cassette, as well as the clutches for folding bills are checked. If an error is detected during the execution of the algorithm, the algorithm is interrupted and the user is given an error number and a brief description of it.

[0071] Accordingly, upon receiving a command to start the second diagnostic procedure, the computing device checks in the manner previously described:

• communication between the cassette controller, sensors and switches via RS422 protocol;

• state of microswitches MK1 and MK2;

• and, if necessary, the operation of solenoid 12 and sensor D8.

[0072] After checking solenoid 12 and sensor D8, the computing device generates a command via the communication interface to turn off solenoid 12 and to move carriage 8 in the maximum upward position to check sensor D2 in the previously described manner.

[0073] After checking the sensor D2, the computing device sends a command to the electric motor 6 to turn it on and move the carriage 8 to the bill receiving position where the sensor D1 is located. When moving to the sensor D1, the carriage 8 moves the “flag” that blocks the beam of light emitted to the sensor D1, as a result of which the said sensor goes into the open state. When detecting a change in the state of the sensor D1, the open computing device sends a command to the electric motor 6 to turn it off. If sensor D1 has not changed its state within the time specified by the developer, for example, 5 seconds, after starting the electric motor 6, then the computing device interrupts the diagnostics and displays information about the error during diagnostics on the display of the device for diagnosing cash cassettes, in particular, information about the presence of an error in the operation of electric motor 6 or sensor D1.

[0074] After the sensor has moved to the area where sensor D1 is located, the computing device generates a command via the communication interface to turn on the solenoid 12 to unlock the bill folding mechanism, and also displays on the display of the device for diagnosing cash cassettes information about the need to place a bill on the input means bills into the cassette. After determining, by well-known methods, the presence of at least one bill on the means for inputting bills into the cassette, the computing device sends a command to the electric motor 5 of the drive for drawing bills along the guides to accept the bill. When passing along the guide, the bill blocks the rays of light emitted by sensors D9, D10, D11, D12, after which the bill enters the platform for placing bills in the cassette.

[0075] As the bill passes along the guide, the computing device reads the state of sensors D9, D10, D11, D12. If the computing device determines that during the passage of the bill, sensor D9 or D10 and sensors D11 and D12 have changed their state, in particular to a closed state, i.e. the mentioned sensors work correctly, then after a time specified by the developer (for example, 1 second) for the final placement of the bill, the computing device sends a command to the electric motor 5 to turn it off. If the computing device determines that sensor D9 or D10 has not changed the state to closed within a time interval specified by the developer after starting the electric motor 5 (for example, 15 seconds), then the computing device interrupts the diagnostics and displays error information on the display of the device for diagnosing cash cassettes. carrying out diagnostics, in particular, information about the presence of an error in the operation of sensor D9 or D10 and generates a command to the electric motor 5 to turn it off. Also, after turning off the electric motor 5, the computing device sends a command via the communication interface to the solenoid 12 to turn it off.

[0076] Next, the computing device sends a command to the electric motor 6 to turn it on and move the carriage 8 to the clutches to the bill dispensing position, as a result of which the carriage 8 blocks the beam of light emitted by the sensor D2 and changes its state from open to closed. As soon as the computing device, as a result of interrogation by sensor D2, has determined that said sensor D2 has responded, the computing device sends a command to the electric motor 6 to turn it off. If within a specified time interval, for example, 7 seconds, the state of sensor D2 has not changed, the computing device interrupts the diagnostics and displays information about an error during diagnostics on the display of the device for diagnosing cash cassettes, in particular, information about the presence of an error in the operation of sensor D2.

[0077] After the carriage 8 has moved to the bill dispensing position, the computing device sends a command to the solenoid 12 to turn it on and to the electric motor 5 of the bill drawing drive along the bill dispensing guides and queries the status of the sensor D11. As the bill passes along the guide, it blocks the beam of light emitted by the D11 sensor, as a result of which it changes its state from open to closed. As soon as the computing device has determined that sensor D11 has changed its state after turning on the electric motor 5, i.e. the mentioned sensor works correctly; after a time specified by the developer (for example, 2 seconds), it generates a command to the electric motor 5 and to the solenoid 12 to turn them off. Next, the computing device displays the test results on the display of the device for diagnosing cash cassettes, in particular, indicating the successful completion of the cassette diagnostics.

[0078] If, after a predetermined time interval (for example, 15 seconds) after starting the electric motor 5, sensor D11 has not changed its state, then the computing device interrupts the diagnostics and displays on the display of the device for diagnosing cash cassettes information about the error during diagnostics, in particular, information about the presence of an error in the operation of sensor D11, and also sends a command via the communication interface to solenoid 12 to turn it off.

[0079] Thus, the achievement of the specified technical result is achieved, which consists in expanding the functionality of a portable device for diagnosing cash cassettes by providing the ability to diagnose optical sensors installed in a cash cassette. Also, due to the fact that in the process of moving the carriage or accepting/issuing bills, several optical sensors and elements designed to control the movement of the carriage or accepting/issuing bills are diagnosed at once, the speed of diagnosing the cash cassette increases.

[0080] Also, the user, using buttons located on the body 1, can select the third algorithm for diagnosing the cash cassette. During this algorithm, the state of the DIP switches is checked and the position of these switches corresponds to the denomination of the bills placed in the cassette. Specifically, the computing device:

• generates a command via the RS422 communication interface to the cassette controller with a request for the state of the cassette DIP switches;

• receives a response with the state of DIP switches 1, 2, 3, 4, and the state indicates that the switch is on or off, and each switch characterizes the denomination of the bill, for example, switch 1 characterizes the denomination “100”, switch 2 - denomination “200” ", switch 3 - rating "500", switch 4 - rating "1000";

• compares the states of the DIP switches with reference data predefined in the computing device and characterizing the established combination of states of the DIP switches for a given type of cassette, and if the mentioned data does not match, the computing device displays an error message;

• displays to the user the denomination of bills that the cassette is programmed to accept based on the state of the DIP switches.

[0081] The user can compare the data displayed on the display with the actual parameters of the cassette, as well as those given on labels printed on the cassette body.

[0082] Also, the user, using buttons located on the body 1, can select the fourth algorithm for diagnosing the cash cassette. While this algorithm is running, the actual state of the cassette sensors is shown in real time. This algorithm is used when repairing cassettes.

[0083] In general (see Fig. 7), a computing device (200) contains one or more processors (201), memory devices such as RAM (202) and ROM (203), and input/input interfaces connected by a common information exchange bus. output (204).

[0084] The processor (201) (or multiple processors, multi-core processor, etc.) may be selected from a variety of devices commonly used today, for example, from manufacturers such as: Intel™, AMD™, Apple™, Samsung Exynos ™, MediaTEK™, Qualcomm Snapdragon™, etc. The processor or one of the processors used in the system (200) must also include a graphics processor, for example an NVIDIA GPU with a CUDA-compatible programming model or Graphcore, the type of which is also suitable for carrying out the method in whole or in part, and can also be used for training and application of machine learning models in various information systems.

[0085] RAM (202) is a random access memory and is designed to store machine-readable instructions executed by the processor (201) to perform the necessary logical data processing operations. The RAM (202) typically contains executable operating system instructions and associated software components (applications, program modules, etc.). In this case, the available memory capacity of the graphics card or graphics processor can act as RAM (202).

[0086] The ROM (203) is one or more permanent storage devices, such as a hard disk drive (HDD), a solid state drive (SSD), flash memory (EEPROM, NAND, etc.), optical storage media ( CD-R/RW, DVD-R/RW, BlueRay Disc, MD), etc.

[0087] To organize the operation of device components (200) and organize the operation of external connected devices, various types of I/O interfaces (204) are used. The choice of appropriate interfaces depends on the specific design of the computing device, which can be, but is not limited to: PCI, AGP, PS/2, IrDa, FireWire, LPT, COM, SATA, IDE, Lightning, USB (2.0, 3.0, 3.1, micro, mini, type C), TRS/Audio jack (2.5, 3.5, 6.35), HDMI, DVI, VGA, Display Port, RJ45, RS232, etc.

[0088] The specific selection of device elements (200) for implementing various software and hardware architectural solutions may vary while maintaining the required functionality provided.

[0089] Modifications and improvements to the above-described embodiments of the present technical solution will be apparent to those skilled in the art. The foregoing description is provided by way of example only and is not intended to be limiting. Thus, the scope of the present technical solution is limited only by the scope of the attached formula.

Claims (51)

1. A method for diagnosing cash cassettes, performed by at least one computing device, comprising the steps of: - receive a command to carry out diagnostics of the cash cassette; - collect data on the state of optical sensors located in the cash cassette; - determine the presence of communication with the mentioned sensors based on the data obtained at the previous stage; - determine the state of the sensor designed to control the pressure of the carriage to the clutches, and if data on the state of the sensor indicate that the said sensor is in a closed state, i.e. the beam of light emitted by said sensor is blocked, then the computing device proceeds to the next step, and if the sensor status data indicates that said sensor is in an open state, i.e. the beam of light emitted by the said sensor is not blocked, then a command is sent to the electric motor to lift the carriage as high as possible and activate the said sensor; - interrogate optical sensors located in the cash cassette and compare data on the state of said sensors with reference data characterizing the state of these sensors when the carriage is in the maximum upper position, to determine the correctness of their operation, and said reference data is determined by the computing device based on data about type of cassette removed from the cassette memory. 2. The method according to claim 1, characterized in that additional steps are performed in which: - collect data on the state of microswitches located in the cash cassette; - comparing data on the state of the microswitches with reference data to determine the correctness of their operation, wherein said reference data is determined by the computing device based on data about the type of cassette retrieved from the cassette memory. 3. The method according to claim 1, characterized in that additional steps are performed in which: - determine the presence of a solenoid in the cassette based on data about the type of cassette retrieved from the cassette memory; - collect data on the state of the sensor designed to monitor the operation of the solenoid; - based on data on the state of the said sensor, the correct operation of the solenoid is determined. 4. The method according to claim 1, characterized in that the battery diagnostic step is additionally performed. 5. The method according to claim 1, characterized in that additional steps are performed in which: - generate a command to turn on the electric motor and lower the carriage down to the “cassette full” position; - determine the change in the state of the sensor designed to monitor the position of the carriage in the “cassette full” position; - send a command to the electric motor to turn it off; - polling the state of at least one additional sensor; - compare the state of at least one additional sensor with reference data characterizing the state of the sensors when the carriage is in the “cassette full” position to determine the correctness of its operation. 6. The method according to claim 1, characterized in that additional steps are performed in which: - form a command to turn on the electric motor and move the carriage up to the banknote dispensing position; - determine the change in the state of the sensor designed to control the position of the carriage in the position of issuing notes; - send a command to the electric motor to turn it off; - generate a command to turn on the solenoid to unlock the mechanism for flipping bills; - form a command to the electric motor to turn it on, as a result of which the shafts with the rollers for drawing bills also rotate, on which there is a disk with slots through which rays of light pass, emitted by a sensor designed to control the operation of the electric motor in drawing bills along the guides for receiving and issuing bills ; - collect data on the state of said sensor; - based on data on the state of the said sensor, the correctness of its operation is determined. 7. The method according to claim 1, characterized in that additional steps are performed in which: - send a command to turn on the electric motor to move the carriage to the position for accepting bills; - determine the change in the state of the sensor designed to control the position of the platform for stacking banknotes, from closed to open; - generate a command to turn on the solenoid to unlock the mechanism for flipping bills; - determine the presence of a bill on the means of entering bills into the cassette; - generate a command for the electric motor of the drive for drawing bills along the guides for accepting bills; - determine the change in the state of the sensor designed to control the presence of bills on the edge of the area for stacking bills farthest from the guides for accepting and issuing bills, or the sensor designed to control the presence of bills at the edge of the area for placing bills closest to the guides for receiving and issuing bills, to a closed one the time interval specified by the developer after starting the electric motor; - send a command to the electric motor of the bill pulling drive and the solenoid to turn them off. 8. The method according to claim 1, characterized in that additional steps are performed in which: - send a command to the electric motor to turn it on and move the carriage to the clutches to the position of issuing bills; - determine the change in the state of the sensor designed to control the pressure of the carriage to the clutches; - generate a command to turn on the solenoid to unlock the mechanism for flipping bills; - send a command to the electric motor of the bill drawing drive to issue a bill; - interrogate a sensor designed to control the movement of bills along the guides, located closer to the means for entering bills into the cassette; - determine the change in the said sensor after turning on the drive electric motor for a time specified by the developer; - send a command to the electric motor of the bill pulling drive and the solenoid to turn them off. 9. A portable device for diagnosing cash cassettes, containing: - a housing containing a computing device and a power module connected to each other; - a slot for installing a cash cassette connected to the body; - an interface for connecting a cash cassette installed in the said slot to a computing device; - an electric motor to control the drive for drawing bills along guides intended for receiving and issuing bills; - an electric motor to control the drive of the bill pressing board (carriage); wherein the computing device is configured to implement the method according to any one of claims. 1-8.