WO2016053223A1

WO2016053223A1 - Remote contactless method for charging mobile devices

Info

Publication number: WO2016053223A1
Application number: PCT/UA2015/000086
Authority: WO
Inventors: Алексей Анатольевич МАРЦЕНЮК-КУХАРУК
Original assignee: Алексей Анатольевич МАРЦЕНЮК-КУХАРУК
Priority date: 2014-09-29
Filing date: 2015-09-18
Publication date: 2016-04-07
Also published as: WO2016053222A1

Abstract

The invention relates to electrotechnics. The claimed method is implemented using a device for the inductive transmission of digital data. The remote contactless charging of an independent power supply of a mobile device is carried out during the emission of electromagnetic waves. Remote charging is carried out during telephone conversations, during the transmission of digital or voice data and during contactless payments with the aid of a device for the inductive transmission of digital data. A device for the inductive transmission of digital data comprises a digital signal synthesizer, a module for charging the power supply of a device for inductively receiving radio waves from an emission source of a mobile device, a bluetooth-type wireless transmission module, a peripheral device for interfacing with a read head of a magnetic card reader, and an interface device. The digital signal synthesizer is provided with a real-time microcomputer system and is connected to an emitter driver. The emitter driver is connected to an inductor. The emitter driver is in the form of a high-frequency switch with a consumption midpoint and stabilization of the midpoint voltage relative to a top point and a bottom point of power supply. The emitter driver is configured as an H bridge circuit. The inductor is capable of converting an alternating electromagnetic field into direct current with the transmission thereof to an independent power supply in order to charge same. The module for charging the power supply is disposed preferably parallel to or corresponding with the position of the antenna of a mobile device. The contactless transmission of digital data is controlled by means of software of the mobile device.

Description

CONTACTLESS REMOTE CHARGING METHOD

MOBILE DEVICES

Technical field

The invention relates to electrical engineering and is aimed at providing non-contact remote transmission of electricity to wireless devices - keyboards, computer mice, mobile phones, smartphones, tablets, photo, video, web cameras, handheld computers, active RFID tags, wireless remotes and input devices, including to recharge the power source of the mobile device, as well as any other low-power wireless devices.

The following notation (determination) is used in the description below.

MST (English - magnetic security transaction) - safe magnetic transactions. KMP - magnetic stripe card. Issued in accordance with the standard

WHEEL 7810, ISO / EEC 7811, WHEEL 7812, WHEEL 7813, O 8583 and WHEEL 4909.

Payment card - a card with a magnetic strip, which is intended for use in payment systems.

Bank card issue - the activity of issuing bank cards, opening accounts, and settlement and cash services for customers in operations using bank cards issued to them.

Emulation is the process of emulation, which consists in inheriting the behavior and characteristics of the emulated object.

The head of a reader or a reader of a magnetic strip (SMP) is a magnetic head.

Transfer - a mathematical / geometric operation to move objects along a coordinate grid without changing their orientation in space.

Polarization is a criterion characterizing the dependence of the co-directionality of the axes of the inductance of the emitter and the reader of the magnetic strip (the angle between the axes when they are parallel transferred) to the maximum distance of stable reading of the signal between them.

Safe data storage - data storage that prevents unauthorized access to them.

Security tool (English - security - security) - a tool designed to meet the requirements of safe storage and data transfer. Non-contact data transmission is the transmission of information over the distance between two or more devices, through which data is transmitted, and which does not require contact directly between these devices (for example, between the inductive coil of the emitter, which transmits a signal, and the reader head, which is located in magnetic card reader drive).

Driver - a structural element or module designed to match the control signal (from any source that can give a command to the driver) and the payload, in particular, the inductive coil of the emitter.

An inductor is an inductive coil of an emitter that transmits a signal.

The f / 2f method (English - double frequency) is the digital signal modulation method described in ISO / IEC 781-1.

The quality factor is a parameter of the oscillatory system, which determines the width of the resonance and which characterizes how many times the reserves of the sum of the dynamic and accumulated energy in the system are greater than the energy loss for one oscillation period.

Magnetic core - a part or a set of parts intended for the passage of magnetic flux with certain losses.

The middle point of consumption is the common wire (ground, zero). It is called "average" when using bipolar power supply systems.

Details - a set of digital data necessary to identify the user in the system (payment, discount, security, authorization, etc.).

A multivibrator (signal synthesizer) is a device consisting of a resistor and a driver of upper and lower order (boundary, shoulder). A multivibrator is a mechanism for sequentially switching the positive and negative (forward and reverse) current flows.

USB 2.0 (Eng. - universal serial bus) - a serial data transfer interface for medium and low speed peripherals in computer technology. Version 2.0

USBotg (universal serial bus on-the go) is a further extension of the USB 2.0 specification, designed to facilitate the connection of USB peripherals to each other without the need for a personal computer (PC).

POS terminal (English - point of sale - point of sale) - an electronic software and hardware device for accepting payments by plastic cards, which can accept cards with a chip module, magnetic stripe and contactless cards, and also other devices with contactless cards interface. bpi (English - bit per inch) - recording density of digital data,

one-time-pin - a one-time unique PIN code.

LRC (eng. - longitudinal redundancy check) - longitudinal redundancy check control.

Termination is an auxiliary sign of the end of string data.

Ν-bit coding - interpretation of a sequence of bits, where N means the number of bits that are shared in the stream to interpret the elements of the data stream. As a rule, the number of bits in a sequence must be a multiple of N, otherwise the data (the remainder of the division) is discarded.

EMF is an electromotive force.

Response distance - the distance between the emitter and the receiver (detector) at which stable data transmission occurs.

H-bridge is an electronic circuit that makes it possible to apply voltage to a load in different directions.

Software (software) - a sequence of commands implemented in the form of commands of the runtime environment, including in the form of sequential codes designed for the functioning of computer systems, and implementing the tasks, as well as developed algorithms.

Frame (English frame) - an indivisible amount of information describing the state in which the inductive coil of the emitter should be.

Current frame (English - current frame) - the frame that is currently read by the driver. Based on the information received from the frame, the driver sets the emitter to the appropriate mode.

NFC (near field communication) is a short-range wireless high-frequency communication technology that enables the exchange of data between devices located at a distance of about 10 centimeters.

A transponder is a transceiver that sends a signal in response to a received signal.

RFID (English - radio frequency identification, radio frequency identification) - a method of automatic identification of objects in which data stored in transponders or in RFID tags are read or written using radio signals.

Mobile device (computing system) - smartphone, phone, tablet, personal computer, other gadgets, etc. State of the art

Recently, in the market of технологий-technologies, the technologies of contactless remote (wireless) recharging of power supplies of mobile devices by the inductive method [http.V / www.mobile- networks. m / articles / budushhee_besprovodnyix_zaryadok.html]. One of the leaders in this area is the American company PowerCast [http://www.powercastco.com/].

The wireless transmission technique by electromagnetic induction involves the use of the near electromagnetic field at distances of about one sixth of the wavelength. In this case, the energy of the near field is not radiating in itself, however, some radiation losses of this energy still occur. In addition, resistive energy losses usually occur.

Due to electrodynamic induction, an alternating electric current flowing through the primary winding creates an alternating magnetic field, which, in turn, acts on the secondary winding, inducing an electric current in it. To achieve high efficiency, such an interaction should be close enough. As the secondary winding moves away from the primary winding, an increasing part of the emerging magnetic field does not reach the secondary winding. Even at relatively short distances, inductive coupling becomes extremely inefficient, wasting most of the transmitted energy for nothing [http://venture-biz.rU/tekhnologii-innovatsii/l 52-besprovodnaya-peredacha-energii].

The simplest device for wireless power transmission is an electric transformer. The primary and secondary windings of the transformer are not directly connected. The energy transfer in this case is carried out using a process known as mutual induction. The main function of the transformer is to increase or decrease the primary voltage. Contactless chargers (batteries) of mobile phones are also examples of using the principle of electrodynamic induction.

As for the means for carrying out the transfer of (digital) data by the inductive method, today in the technology market there are many electronic devices that transfer data, payment instruments, access control systems, identification systems, as well as cash settlement services, authorization methods in accounting systems, etc.

These tools include magnetic stripe cards (ILCs), 2015/000086

5

including including payment card data. Payment ILCs include, but are not limited to, credit, debit, gift, and discount cards. Data is "recorded" on the magnetic strip of these cards by alternating the magnetization of particles embedded in the magnetic strip.

Payment card data is read from its magnetic strip in the POS terminal when the card is passed through a magnetic card reader (through the card slot). A magnetic card reader consists of a read head and a decoding circuit associated with it. When a magnetic card moves through a magnetic strip reader (through a card slot), its magnetic strip passes in front of the read head. When moving relative to the read head, a magnetic strip, which is equipped with magnetic domains of variable polarity, creates a pulsating magnetic field in the gap of the read head. The latter turns this pulsating magnetic field into an equivalent electrical signal.

The decoder circuit amplifies and digitizes this electrical signal, reproducing the same data stream that was recorded (i.e. was inserted at the time of recording) on the magnetic strip of the card. Magnetic strip coding is described in the international standard ISO 781-1 and ISO 7813.

With the popularity and capabilities of smartphones, the desire to use them as mobile wallets, as well as use them to make payments at points of sale without using multiple cards, is growing. The key obstacle to this decision was the lack of a data channel between mobile phones (smartphones) and the POS terminal.

In this regard, several alternatives have been proposed. These include manual configuration of data for transmission in the POS terminal, 2D barcodes displayed on the phone screen and read using a 2D barcode reader, PvFIDs attached to phones and built-in to their hardware to make near contactless Communication (BBS), launched using the phone application.

Of these methods, 2D barcodes and BBSs are the most promising. They have a wide range of reception, but there is no possibility of their wide practical use due to the lack of appropriate readers at points of sale. And in the case of BBS, one should also point out the lack of a standardized ability to use BBS in many smartphones. Accordingly, there is a need to improve devices and methods for transmitting payment card data, as well as other digital information from a smartphone or other electronic device, remotely to a POS terminal or other magnetic card reader.

Thus, patent US 8628012 is known [1], [System and method for a baseband nearfield magentic stripe data transmitter. Patent US 8628012. MP G06K7 / 08 (2006.01). Date of publication 01/14/2014. Priority date: January 20, 2013], which describes the system and method of operation of the near-field magnetic field data band transmitter MST, which transmit payment card data from a smartphone or other electronic device to a POS terminal for transactions.

A device based on the MST method includes a driver and an inductor. A device operating on the basis of the MST method receives magnetic stripe data containing payment card data, processes the received magnetic stripe data, and generates high power magnetic pulses containing processed magnetic stripe data, which can then be obtained using a magnetic card reader in POS terminal.

The disadvantages of the above technical solutions are due to the design and operation of the elements (devices) of the base system [1] and are as follows.

Firstly, data transmission using this system is possible remotely at a limited distance in the range from 1 to 2 inches, measured between the device transmitting the signal, made in the form of an inductor (a coil of a device that transmits a signal), and a detector (a device that receives a signal) made in the form of a reader head and located in a magnetic card reader.

This “hard” restriction on the distance between the devices for transmitting and receiving a digital signal is a consequence of the fact that for a smaller distance between these devices (that is, less than 1 inch), the inductor power is too large. This leads to magnetization of the core of the head and / or excessive amplitude of the signal, which causes degradation of the input stage of the amplifier / detector.

For greater distance between these devices (i.e. more than 2 inches) the current design of the inductor does not contribute to an unambiguous interpretation of the signal transmitted by the inductor. The consequence of this is noise. Also, the distribution of the magnetic field in space and in the region of the best data transmission is not determined.

Secondly, the implementation of the technology (method) and the device operating on the basis of the MST method provides for the possibility of storing memory after turning off the power to store payment card data and other personal information. This characteristic of the invention is unsecured, since the storage of information may lead to its unauthorized use by third parties.

Thirdly, when implementing MST technology, an inductor coil with a quality factor in the range from 10 μmN / Ohm to 80 μmN / Ohm is used. The consequence of the above high values of the quality factor of the inductor coil is its high reactivity due to the generated extraneous electromagnetic waves. This leads to a noisy signal and complicates the interpretation of the data produced by the decoder, which is located in the card reader. Compensation of extraneous vibrations leads to a greater (at least 15%) energy consumption.

Also, as a result of the high quality factor of the inductor coil, in order to maintain the necessary ratio between the useful signal and the noise signal, it is necessary to provide increased radiation power. This, in turn, leads to a magnetization reversal of the core of the reader head, as a result of which intense magnetic wear of the head occurs.

Fourth, a device based on MST technology is additionally equipped with a magnetic stripe reader head (SMP) for the possibility of obtaining magnetic stripe data from the card and for their further use. The presence of the head of the NSR can contribute to unauthorized copying (use) and / or unauthorized transfer of protected data located on the magnetic strip.

Fifthly, due to the high transmission power of the signal, the signal of a device operating according to the MST method can be detected by devices, including those not intended for recording magnetic signals (for example, an electret microphone). The negative consequences of this is the possibility of extraneous data reading and unauthorized receipt of information. Sixth, in the device [1] the one-time-pin function is not implemented in hardware and software. A negative consequence of this may be the lack of additional protection (due to the use of the same pin code) with each use.

A number of wireless electric power transmission systems based on the reception of electromagnetic waves from the ether are also known [WO 2005069503, 07.28.2005, H02J17 / 00, JP 2005537773T, 08.12.2005, H02J17 / 00, US 2005077872, 04.14.2005, H02J17 / 00, WO 200438890, 02.02.2006, H02J17 / 00] and others.

As an analogue for the implementation of the developed method, a method for providing emergency power to cellular radiotelephones [RU 2180465, 03/10/2002, H02J17 / 00], which is implemented on the basis of a device containing a broadband antenna, step-up transformer, rectifier, voltage comparison unit, mode switching unit, drive, battery, display and control unit, power terminals of the radiotelephone. A broadband antenna receives electromagnetic waves in a wide range, which allows for the accumulation of electricity almost anywhere. In the low-frequency range, the accumulation of electricity occurs better in the area of power lines, and in the high-frequency range it is best in case of a thunderstorm and near the transmitting station. A step-up transformer is necessary to ensure the operation of the rectifier diodes and to provide the charge voltage of the drive, since the magnitude of the electrical signal in the broadband antenna is tenths of a volt. The rectified voltage is used to charge the drive, which can be used as a capacitor with a small leakage current or, more acceptable for the case under consideration, the battery.

The disadvantage of this analogue method is that when it is implemented, there may be cases in which the electromagnetic field strength is small, since there are no electromagnetic radiation sources nearby, and the field strength is insufficient to ensure recharging of the power sources on the side of the charging unit. Moreover, the voltage converter circuit itself (step-up transformer and rectifier) does not allow for guaranteed power supply (recharging), despite significant losses on them.

As the closest analogue (prototype), a method is selected that is part of the functioning of a wireless charging system [2], [RU 2306654, H02J17 / 00, Н04В 1/38, publ. 09/20/2006, Bull. jN ° 26]. Above wireless the charging system contains a narrow-band high-frequency generator with a radiating antenna on the feeding side, and a receiving antenna connected to a voltage inverter, the output of which is connected to the input of the charge-discharge controller, which is connected to the battery block and / or to the block of ionistors, on the side of the charging unit. In this case, the inverter contains a rectifier and a pulse voltage multiplier at the input, containing n stages (where n> 2), each of which contains a first diode, a storage capacitor and a second diode connected in accordance with the first, as well as a MOS transistor (i.e., a transistor) Metal-Oxide-Semiconductor structures) with an induced channel, the drain of which is connected to the gate and to the connection point of the first diode and the storage capacitor, the connection point of which with the second diode is connected to the source of the MOS transistor ora with the induced channel of the previous cascade. In this case, the free terminals of the first diodes are connected to each other and, respectively, the free terminals of the second diodes are connected to each other and are the input of a pulse voltage multiplier, the output of which is the source of the MOS transistor with the induced channel of the last stage and the connection point of the storage capacitor and the second diode of the first stage.

A feature of the implementation of the method [2] on the basis of the corresponding device is that on the feeding side a narrow-band high-frequency generator emits electromagnetic waves of a certain frequency ω using a radiating antenna. These waves produce in the receiving antenna of the charging unit a variable EMF of the same frequency ω and amplitude, which depend on the distance to the emitter. An inverter containing a rectifier and a pulse voltage multiplier must convert the alternating voltage to direct (that is, one that changes slowly) or to a pulse voltage that must not be lower than the threshold level due to the particular design of the charge-discharge controller and the used battery pack and block of ionistors.

The charge-discharge controller is a standard element used in modern mobile devices. It serves to optimize the charge-discharge mode of batteries and ionistors (maintaining the necessary voltages and currents, preventing a full discharge), switching the load on charged batteries and an ionistor to maintain the necessary supply voltage (for example, in start-up mode), disconnecting elements that are located from the load in charging mode, etc. The disadvantages of the above technical solution are due to the complex design and inefficient functioning of the elements (devices) of the basic wireless charging system [2], which makes it impossible to use it effectively for non-contact remote transmission of electricity to existing wireless devices - keyboards, computer mice, mobile phones, photo- , video, webcams, handheld computers, active RFID tags, wireless remotes and input devices, including to recharge the power source of the mobile device, as well as any other low-power wireless devices.

The basis of the invention is the task of improving the method of contactless remote charging of the power source of the mobile device by the inductive method by converting the radiating energy of the mobile device (source) into the charging current for the consumer (receiver, battery, autonomous power source), as well as by effectively implementing the procedures of the method the optimal implementation of the elements of the basic structure of the device with which the method is implemented, which will contribute to the improvement improved energy and economic indicators when performing such a procedure for self-charging the power source (battery) of the mobile device. In addition, the inventive method provides a more efficient synthesis of energy in the mode of transmission of electromagnetic waves in the form of digital, including payment and / or voice data from a mobile device, and also provides the universality of self-charging the power source (battery) of the mobile device (by analogy with “direct” recharging in the process of data transfer and “extra” recharging when the nearest base receiving and transmitting mobile station is within range communication or similar device containing a GSM module of high-frequency radiation).

Disclosure of the invention.

The specified technical problem is solved by the fact that in the contactless remote charging of an autonomous power source for mobile devices by the inductive method, made, for example, in the form of a computer, mobile phone, smartphone, tablet or other electronic device, and a communication system, with an autonomous power source, which consists in in radiation using a radiating antenna in the form of a narrow-band high-frequency generator of electromagnetic waves of a certain frequency, which is located in a mobile device, and in inducing in the receiving antenna a variable EMF signal of a charging current with an amplitude depending on the distance to the electromagnetic wave emitter, and subsequently ensuring the conversion of the alternating voltage into a constant voltage, which slowly changes over time , or in a pulse voltage, which should not be lower than a predetermined threshold level for a rechargeable autonomous power source in the form of a battery, but It is obvious that non-contact remote charging of an autonomous power source of a mobile device is carried out in the process of emitting electromagnetic waves during telephone conversations, transmitting digital or voice data, making contactless payments using an inductive method for transmitting digital data (15) by emitting an inductor signal (2 ) devices for transmitting digital data by the inductive method (15) to the charging module (24) of the device for receiving electromagnetic induction waves in the form of low frequency pulses, and when transmitting electromagnetic waves at a GSM frequency from a high-frequency radiation source of a mobile device that contains a GSM-module of high-frequency radiation, as well as in the absence of the above actions when digital transmission device receives inductive method (15) electromagnetic waves when the transmission device is located inductance method of digital data (15) within the range of the nearest base transceiver mobile communication station or similar device containing a GSM mode l high-frequency radiation, for example, a POS terminal with a GSM modem, a mobile phone, a tablet with a GSM module, while the inductive method of transmitting digital data (15) is performed as part of a digital signal synthesizer or direct digital signal synthesis circuit (6), which are equipped with a real-time computing microsystem and connected to a driver (7) of the emitter, which is connected to the inductor (2), of the charging module (24) of the power source (26) of the radio wave receiving device by the inductive method from the radiation source of the mobile device properties that are located in a mobile computing and communication system (14), a blue-tooth wireless transmission module, a peripheral interface device (27) with a reading head of a magnetic card reader (9), and also an interface device (4), and digital signal synthesizer or direct circuit digital signal synthesis (6) is configured to generate an outgoing digital signal in advance of a given shape and time intervals, and to ensure that there is no distortion of the outgoing digital signal regardless of its frequency, as well as with the ability to switch the polarity of the supply voltage applied to the inductor (2), and transmission of digital data due to the phenomenon of magnetic induction in the receiving device (16) with the magnetic head (1) of the reader to a distance of 30 cm, as the driver of the emitter (7) use high-frequency a switch with an average consumption point and stabilization of the voltage of the midpoint relative to the upper and lower power points, and perform the driver emitter (7) according to the H-bridge scheme, which provide protection against simultaneous switching on of the upper and lower keys, the inductor (2) is configured to convert alternating electromagnetic field into direct current with its transfer to an autonomous power source (26) of a mobile computing and communication system (14) for recharging it, and is performed with a quality factor that is within the range of up to 1200 mH / Ohm, as well as with the possibility of generating an electromagnetic field (3) and inducing voltage in the charging module of the power source (24), which are located mainly parallel to or corresponding to the placement of the antenna of the mobile device, signal polarization is used in the process of the mobile device inductor (2) and regulate the normalized radiation power of the signal of the inductor (2) by using binary pulse-width modulation, as well as by changing the polarity, which consists in quickly By switching the polarity of the supply voltage applied to the inductor (2), with simultaneous amplification of the current in it, and also by creating a peak change in the magnetic field on the magnetic reader (1), the contactless transmission of digital data is controlled using the appropriate software installed in the communication or a computing system (14) that resides in a mobile device.

An inductive method for transmitting digital data (15) is located outside the housing of the mobile device.

The recharge module of the power source is removable, as well as with the possibility of movement and subsequent fixation on the pad of the mobile device, depending on the location of its radiating antenna. 6

13

The power supply charging module, the blue-tooth wireless transmission module, the mobile device power supply, as well as the peripheral interface device (27) are located on the back of the mobile device on its back side.

When connected to a communication or computer system with installed software (software) (14), the interface device (4) is identified as a serial port of the RS232 standard, UART, by which the commands and data are transferred to the digital data transmission device by the inductive method (15).

An inductive method for transmitting digital data (15) is equipped with a real-time computing microsystem that is capable of synthesizing a transmitted signal.

The signal synthesizer (6) is equipped with a delayed command processing microsystem or a real-time computing microsystem, which is configured to sequentially set the value of the current signal frame at the terminals of a two-bit digital bus with a digital signal reproduction frequency ranging from 0 Hz to 4 KHz.

As an emitter driver (7), an operational amplifier is used.

In the device for transmitting digital data by the inductive method (15), an interface device (4) is used from a communication or computer system with installed software (14), which is capable of transmitting digital, including payment, data and commands of the digital data transmission device by the inductive method (15) and with the ability to check the status of this device (15).

A device for interfacing (4) with a communication or computer system with installed software (software) (14) is capable of supporting standard data transmission methods, such as, for example, blue-tooth, UART, RS232, NFC, USB, wi-fi and others.

The interface device (4) is in the form of buttons or mode switches, and the normalized radiation power is controlled by quickly switching the polarity of the supply voltage applied to the inductor (2), which is from 10 ^"6 s to 10 s for each switching.

The flat core (19) of the inductor (2) is made of magnetically neutral or magnetically conductive material. 6

fourteen

The flat core (19) of the inductive coil of the emitter (2) is oblong and rectangular in shape with a cross section in the form of broken faces.

The inductor winding (2) is made of conductive materials with isolation of each coil from neighboring turns, or with ordered or disordered stacking of turns.

The inductive method of transmitting digital data (15) is either in the form of a protective cover on a communication or computer system with installed software (14), or in the form of a keychain, or in the form of a bracelet (14).

An inductive method for transmitting digital data (15) is performed as an external module built into a communication or computing system with installed software (14).

An inductive method for transmitting payment data (15) is configured to use the polarization effect.

Increase the transmission distance of the output signal using the polarization of the radiation of the magnetic field.

An output signal is generated from the payment data transmission device by the inductive method (15) by switching the polarity of the power of the inductor (2).

The recharging module of the power source of the digital data transmission device by the inductive method (15) is capable of functioning during telephone conversations at a frequency of the transmitted output signal of 900 MHz or 1800 MHz, as well as when transmitting data with an output power of max 2 W, and at voltage (DC) from module (25) in the range (3.7 - 4.2) V, and with a current strength (500 - 2000) tA.

The method complies with Qi vers.1.2 or earlier wireless charging standard.

To diagnose a full charge of the mobile device’s battery, a light indicator is used to signal the user that charging is complete, and the indicator blinks in red and yellow during charging, and lights up in green when the battery of the mobile device is fully charged.

To diagnose a full charge of the mobile device’s battery, an audio signal is used to signal the user that charging is complete. To diagnose a full charge of the battery of a mobile device, an audio signal and a light indicator are used at the same time, signaling the user that charging is complete, and the indicator blinks in red and yellow during charging and lights up green when it is finished.

An inductive method for transmitting digital data (15) is performed with the function of automatically stopping recharging when the mobile device’s battery is fully charged.

The battery charging status icon is displayed on the screen of the mobile device.

The charging module of the power source is located near the radiating antenna of the mobile device.

Full recharging of a mobile device is provided when making telephone conversations and / or transferring digital ones, including billing and / or voice data using an inductive method for transmitting digital data for at least 168 hours

The charging speed varies depending on the frequency or amount of payments made by the digital data transmission device (15).

These features of the method constitute the essence of the invention.

The presence of a causal relationship between the set of essential features of the invention and the achieved technical result is as follows.

As you know, the main disadvantage of the wireless transmission method is the extremely short distance of its operation, since the receiver must be in close proximity to the transmitter in order to effectively interact with it.

It should be noted that the use of resonance slightly increases the transmission range, since with resonant induction the transmitter and receiver are tuned to the same frequency. Productivity can be increased by changing the waveform of the control current from sinusoidal to non-sinusoidal transient waveforms.

In turn, pulsed energy transfer occurs over several cycles. Thus, significant power can be transmitted between two mutually tuned LC circuits with a relatively low coupling coefficient. The standard transmitting and receiving inductive coils, as a rule, are single-layer solenoids or a flat spiral with a set of capacitors that allow you to tune the receiving element to the transmitter frequency.

Thus, the effective use of resonant electrodynamic induction is optimal for charging the batteries of portable devices such as laptop computers and cell phones, smartphones, tablets, medical implants and electric vehicles. Resonance is used in the receiver module (built into the load) to ensure maximum energy transfer efficiency. This transfer technique is suitable for universal wireless chargers for recharging the portable electronics mentioned above.

In addition, resonant electrodynamic induction is also used to power devices that do not have batteries, such as RFID tags and contactless smart cards, as well as to transfer electrical energy from the primary inductor to the Tesla transformer screw resonator, which is also a wireless electric transmitter energy.

It should be noted that the technique of resonant electrodynamic induction is adopted as part of the Qi wireless charging standard, which was developed by the global giant Wireless Power Consortium. This global standard has been adopted and approved by more than a hundred companies around the world, as a result of which mobile devices can be charged anywhere in the world.

Modern wireless chargers are designed for power up to 5 W, which provide two-way communication between wireless charging and a mobile device. The advantage of Qi is that it is a standard that many global mobile gadget companies have begun using.

Qi technology allows you to transfer energy to gadgets by the principle of magnetic induction. The base charger consists of an induction coil, which creates an electromagnetic field when AC is received. In the recipient gadget there is a similar coil capable of capturing this field, converting the energy received into direct current. As a result, the battery of the mobile device is being charged.

Thus, the Qi ver.1.2 standard supports the resonant method of wireless charging. This means that rechargeable gadgets do not have to touch the surface of the base station. It is noted that energy transfer is possible at a distance of up to 45 mm. Thus, the charger can be integrated, say, in the countertop of a computer desk or in the speech compartment of an automobile panel.

Wireless Power Consortium notes that there are already prototypes of charging stations that provide 40-50 mm wireless power transmission [http://htn.su/hardware/2013-04-24/123-besprovodnye-zaryadnye-ustrojstva-qi- i -ix- budushhee.html]. The new standard is backward compatible with Qi ver 1.1. Due to this, existing devices with Qi support can also use the remote charging function, but the radius of action in this case will be limited to 30 mm.

Existing experimental mobile power supplies are equipped with a built-in lithium-ion battery with a capacity of up to 2000 mAh, which is charged from a stationary wireless dock. According to the developers, the electromagnetic field in the near field is used to transmit electricity.

However, at the current stage of development, one of the serious problems is the large losses in the process of electricity transmission, reaching 30-60%. In addition, the metal panels of the case of the charging device, which are located between the built-in wireless charging module and the surface of the tablet, may interfere with the normal operation of the charging system. However, it is expected that wireless charging technology will soon be publicly available. This means that, for example, having come to the cafe, you can put the smartphone on the table and see the charging icon on the screen, as well as control this process [http.7 / compress.ru / article.aspx? Id = 20424].

Brief Description of the Drawings

The technical solution is explained in FIG. 1 - FIG. 6, where: in FIG. 1 shows a schematic diagram of the transmission and reception of signals from a coil to a read head by the inductive method, as well as a conditional distribution of power lines in the head region; in FIG. 2 shows a diagram of a digital transmission device, including payment, data inductive method; in FIG. 3 shows the connection and interaction of components of a system operating on the basis of the described method with a card reader; in FIG. 4 shows a design diagram of the read head, as well as the design of the inductive coil of the emitter and the orientation of the inductive coil of the emitter at the time of data transfer; in FIG. 5 6

eighteen

a printed circuit board of the device with conventionally placed radio elements on it is presented; in FIG. 6 shows a diagram of the implementation of reception and transmission during a mobile communication session, as well as the implementation of self-charging the power source (battery) of the mobile device.

In FIG. 1 oval lines show the conditional distribution of the magnetic field lines in the region of the magnetic head (item 3). In FIG. 3 dashed lines indicate the axis of winding of the emitter coil (pos. 12) and the coil of the read head (pos. 10).

In FIG. 1 - FIG. 6 the following notation is accepted: 1 - reading head (component of the reader); 2 - inductive coil of the emitter; 3 - spatial distribution of the magnetic field lines in the region of the magnetic head; 4 - interface device; 5 - bus for in-circuit programming; 6 - signal synthesizer; 7 - emitter driver; 8 - driver for increasing the voltage; 9 - reader, core of the reading element; 10 - axis of the coil winding of the read head; 1 1 - the clearance of the read head; 12 - axis winding of the inductive coil; 13 - arrangement of elements during signal transmission (pos. 13 includes pos. 2 and pos. 13, as well as pos. 1, pos. 9 and pos. 10); 14 - communication or computing system with installed software; 15 is an inductive method for transmitting digital data; 16 - receiving (receiving) device (for example, a POS terminal); 17 - an economic entity (bank / store / institution); 18 is a mobile application (software) installed in a communication or computing system (14); 19 - core of the inductive coil of the emitter; 20 - structural inductance of the magnetic head reader; 21 - channel contactless transfer of payment data; 22 - antenna of a communication or computing system with preinstalled software (14); 23 - a module of a communication or computing system with preinstalled software (14), comprising an inductive method for transmitting digital data (15); 24 - recharging module of the device for receiving radio waves by the inductive method from the source of the mobile device with subsequent conversion to direct current supplied to an autonomous power source for charging (26); 25 is a blu-tooth type wireless transmission module of an inductive method for transmitting digital data (15); 26 is a stand-alone power source (eg, battery) of the device; 27 - peripheral interface device for communication with a receiving device (16); 28 - base transceiver station 00086

19

mobile communication with an antenna (29); 30 - display of a communication or computing system with preinstalled software (14); 31 - an icon on the screen of a communication or computer system with preinstalled software (14), which diagnoses the state of the battery charging process (26).

Justification of the invention.

The developed method of non-contact remote charging of an autonomous power source for a mobile device by the inductive method is based on the use of the digital data transmission device by the inductive method (pos. 15).

In turn, the device (15) as part of the system on the basis of which the inventive method is implemented is performed as part of the inductive coil of the emitter (pos. 2), the emitter driver (pos. 8), the signal synthesizer (pos. 6), and the interface device ( item 4) with computing (computer, mobile phone, smartphone, tablet, etc.) and / or communication systems (item 14).

The inductive coil of the emitter (emitter) (pos. 2) has the following features. The flat core of the inductive coil of the emitter (pos. 19 in Fig. 4) is made of magnetically neutral material, which acts as a frame for fixing the conductor. The core is made of elongated rectangular shape. A core shape with rounded or cut off cross-sectional edges is allowed.

The coil of the inductive coil of the emitter (pos. 2) is made of conductive materials with isolation of each coil from neighboring turns. Also, for example, the air gap can act as an insulator with a significant potential difference, which is less than 2 kV / mm (with a relative humidity of less than 50%).

In the process of operation of the inductive coil of the emitter (pos. 2), the magnetic field gradient is aligned with the length (winding axis) of the emitter (pos. 3 in Fig. 1). Since the magnetic head (pos. 1) registers the magnitude of the change in the magnetic field (i.e., the first derivative), for a larger peak amplitude (burst of signal, or maximum), it is necessary that the front of the polarity change tend to instantaneous.

In this regard, the driver of the emitter (item 7) has the following features. To form expressive bursts and to stretch the front of the emitted signal during the operation of the device (pos. 15), a change in the polarity of the current through the emitter (pos. 2) using the H-bridge is used. This leads to the actual doubling the driver input voltage (pos. 8) at the emitter contacts, thereby increasing the range of stable operation of the claimed technical means of transmitting digital data by the inductive method, as well as during recharging.

It is also allowed to use a high-frequency switch (pos. 8 in Fig. 2) with a consumer's midpoint and stabilizing the voltage of the midpoint relative to the upper and lower power points as a driver. This is accomplished by controlling the microcomputer system (key 6).

The signal synthesizer (pos. 6) has the following features. The computing microsystem (a real-time microcomputer that uses the operating system and which eliminates the balancing of the computational load) acts as a synthesizer (pos. 6), and sequentially sets the value of the current signal frame at the terminals of the two-bit digital bus (between pos. 6-7 in Fig. 2). The signal playback frequency is from 0 Hz to 4 KHz.

It is possible to use a single-bit bus (not shown in Fig. 1 - Fig. 6) using logical negation to control the H-bridge (which is one of the options for matching the synthesizer and driver to simulate an auxiliary discharge). At the same time, due to the potential difference, data transmission is implemented in the most efficient way.

The in-circuit programming bus (5) is used to record the device software and does not take part in the direct operation of the device, since Designed to adjust settings in a prototype. That is, the bus for in-circuit programming (5) serves to update the “firmware” (software) of the computing microsystem without removing the microcircuits from the board and is connected to the serial port of the microcomputer.

The driver for increasing the voltage (8) is connected to the H-bridge and serves to use high-resistance emitting coils, that is, increases the input voltage to the required level.

Reception of data and commands, preparation, radiation and device control (pos. 15) are carried out using a computer system (pos. 14).

The device for interfacing (pos. 4) with computer or communication systems (pos. 14) has the following features. It is configured to transmit data and commands of the digital data transmission device by the inductive method (pos. 15) and to interrogate (check) the status of the digital data transmission device by the inductive method (pos. 15). Message may be implemented using standard data transfer methods, such as Bluetooth, UART, RS232, NFC, USB, etc.

In the case when the payment data is not expandable, that is, established by the manufacturer and not intended to be added or changed during operation, or the digital data transmission device using the inductive method (pos. 15) is operated without the help of extraneous control devices, the interface device (pos. 4) performed in the form of buttons or mode switches.

Using the inductive method of transmitting digital data (key 15), stable reading of information is realized by reading card emulation (CMC) (according to the standards KOLES 7810, KOLES 781 1, ISO / IEC 7812, KOLES 7813, ISO 8583 and KOLES 4909), using card readers (for example, POS terminals) (pos. 16), security cards, discount cards, promotions, discounts and other cards.

This ensures the maximum operational distance between the inductive coil of the emitter (pos. 2) and the magnetic head of the reader (pos. 1), which reaches up to 15-30 cm, and not 1-2 inches, as in the system and method of the closest analogue (prototype ) [2].

Given the use of cards in payment systems, an inductive method of transmitting digital data (item 15) is used to transmit digital information, including payment information, necessary for carrying out non-cash payment transactions.

The method and device that implements it is used in this way. Non-contact remote charging of an autonomous power source of a mobile device is carried out in the process of electromagnetic wave emission during telephone calls, digital or voice data transmission, contactless payments using the digital data transmission device by the inductive method (15) by emitting an inductor signal (2) of the digital data transmission device inductive method (15) to the charging module (24) of the device for receiving electromagnetic induction waves in the form of low-frequency pulses at.

Also, recharging is carried out when transmitting electromagnetic waves to

GSM frequency from the source of high-frequency radiation of a mobile device that contains a GSM-module of high-frequency radiation.

Another option for recharging is the reception of digital data by the inductive method (15) of electromagnetic waves at a device the location of the digital data transmission device by the inductive method (15) within the range of the nearest base transceiver mobile communication station or similar device containing a GSM module of high-frequency radiation, for example, a POS terminal with a GSM modem, a mobile phone, a tablet with a GSM module .

The method of transmitting digital data by the inductive method (15) that implements the method is capable of continuously accumulating electric power (recharging) the power source by converting the electromagnetic field energy that it receives from the radiation source of the radio waves of the mobile device.

A device for interfacing (4) with computing and communication systems (14) is performed with the ability to maintain standard data transmission methods, such as, for example, Bluetooth, UART, RS232, NFC, USB, wi-fi and others.

Also, the interface device (4) is made in the form of buttons or mode switches, and the normalized radiation power is controlled by quickly switching the polarity of the supply voltage applied to the inductor (2), which is from 10 ^"6 s to 10 s for each switching.

The interface device (pos. 4), when connected to a computing or communication system (pos. 14), is identified as a serial port (RS232, UART standard), with which the commands and data are transferred to the digital data transmission device by the inductive method (pos. fifteen).

The inductive coil of the emitter (2) is performed with the ratio of inductance to resistance, which is in the range from 0.0001 to 1200 μΗ / Ohm, as well as with ordered or disordered stacking of turns.

In the process of data transfer, incl. payment, the user in the application interface (executed in a computing system, for example, a smartphone, phone, tablet, etc. (not shown in Fig. 1 - Fig. 6)) selects what information (which is downloaded and which must be transmitted) he will use. Then, using a computing system (item 14 in Fig. 3), data is transmitted to the computing microsystem (item 5).

Using the interface device (pos. 4), the received data is transmitted to the signal synthesizer (pos. 6), after which these data are checked for integrity and prepared (converted into a sequence of frames) for emission by the inductive coil of the emitter (pos. 2) into a card reader with magnetic stripe (pos. 16).

After preparing the data, the signal synthesizer (pos. 6) sends a signal to the emitter driver (pos. 7), which makes it possible to use the electric power of the power source. The signal synthesizer (pos. 6) sequentially lists the frames in the memory that were converted based on the transmitted data to the signal synthesizer (pos. 6) from the computer system (pos. 14) with fixed time delays specified according to the f / 2f encoding method .

After the data transfer is completed, the signal synthesizer (pos. 6) transmits a prohibiting signal from the emitter driver (pos. 8), as a result of which the power supply to the emitter driver (pos. 8) and daughter devices (i.e., the inductive coil of the emitter) is stopped (pos. 2) and related modules (i.e., all child objects).

Based on the input received from the signal synthesizer (pos. 6) using the emitter driver (pos. 8), a signal is generated with clearly defined rising and descending edges of the signal, which are emitted by the connected inductive coil of the emitter (pos. 2).

In an inductive method for transmitting digital data (key 15), only one track is emulated once containing the data to be transmitted. The other two tracks are discarded from the reading process because they do not pass the data integrity check using the Ν-bit encoding of H LRC.

The inductive coil of the emitter (pos. 2) is performed with a magnetically neutral core, which acts exclusively as a frame for fixing the conductor (pos. 19 in Fig. 4) of the inductive coil of the emitter (pos. 2).

The inductive method of transmitting digital data (pos. 15) can be implemented as an addition to mobile phones, smartphones, tablets, etc., as well as an overlay for an electronic device, a protective case, a key fob, a bracelet, etc. Data transmission (including payment) using the inductive method of digital data transmission (pos. 15) is carried out at a distance between the read head of a card reader (for example, a POS terminal) (pos. 16) to the radiator inductance coil (pos. 15) . 2), which averages about 5-10 cm. The real possible range of data transfer between transceivers is up to 30 cm, depending on the design of the digital data reader (item 16).

At the time of data transfer, the smartphone (phone, tablet, etc.) should be kept mainly parallel to the gap of the card reader (for example, in the POS terminal) within 5-10 cm. It is not recommended to move and rotate the device (pos. 15) during data transmission. That is, the axis (pos. 12) of the emitter coil (pos. 2) is arranged parallel to the card slot (not shown in Fig. 1 - Fig. 6) of the card reader.

Card readers (readers) use a three-track magnetic read head (according to ISO / IEC 7810). That is, in the housing of the magnetic head of the reader (pos. 1 in Fig. 4) there are three independent readers (pos. 9 in Fig. 4) for each track, which are located at a distance significantly less than the distance between the read head (pos. 1 ) and the inductive coil of the emitter (pos. 2).

In the case of inductive data transmission, the distance between the reader (pos. 9) and the inductive coil of the emitter (pos. 2) is much larger than the distance between the readers (pos. 9) in the housing of the read head (pos. 1). In order to explain the physical concept, suppose that all three sensors (key 9) are at the same point and do not affect each other. It was experimentally confirmed that the influence of three sensors on each other is so small that they can be neglected. So, the above assumption is confirmed.

The reading head (pos. 1) is located as follows. The clearance plane of the magnetic read head (pos. 1 1) is oriented perpendicular to the direction of movement of the magnetic strip (Fig. 1 - 6 is not shown). So, the axis (pos. 10) of the winding of the structural inductance (pos. 20) is parallel to the feed direction (pos. 12) of the magnetic strip (not shown in Fig. 1 - Fig. 6).

Thus, during the passage of the magnetic strip (Fig. 1 - Fig. 6 not shown) in the region of the head gap (pos. 1 1), the magnetization changes (gradient). This creates an EMF in the inductance (key 20) of the read head (pos. 1), which is amplified by the amplifier of the reader (in Fig. 1 - Fig. 6 is not indicated) and transmitted for further processing (decryption).

That is, a magnetic read head (item 1) registers the gradient of the magnetic field, and not its absolute value. So, to transmit a signal, it is necessary to quickly change the magnetic field in the region of the magnetic gap (key 11). This can be achieved at a considerable distance from the read head (Fig. 1), using a more powerful source of a magnetic signal than a magnetic tape, for example, an electromagnet.

The closest physical model of our transmission system (“head-emitter”) is the “transformer”. In fact, the magnetic head of the reader (pos. 1) and the inductive coil of the emitter (pos. 2) in our transmission system are a transformer with an unfavorable transmission medium of magnetic excitation (due to the significant distance between the windings of the "transformer" and the absence of a common magnetically conductive core (pos. 19). The inductive inductor (pos. 2) acts as the primary winding, and the magnetic head of the reader (pos. 1) acts as the secondary winding.

Since, according to ISO 781-1, magnetic stripe cards are encoded using the f / 2f method, which is a digital encoding method (i.e., excessive in favor of signal turnover), it suffices to determine the signal characteristics on the basis of which detection, recognition and decoding are performed digital signal.

We determined experimentally that a necessary and sufficient condition for decoding a digital signal is the presence of pronounced (maximum) peaks with a change in polarity and a fixed interval between them depending on the value that is encoded (unit frequency (f) for encoding a logical zero, and doubled frequency ( 2f) for encoding a logical unit).

Given the specifics of the digital signal, there is no need to transmit it completely, that is, a complete repetition of the waveform, the absence of noise and interference is optional. It is necessary to noticeably (on the winding of the magnetic head (item 1) transmit peaks of variable polarity with fixed time intervals (i.e., carry out f / 21 encoding). This is achieved by means of sharp (i.e., one that almost tends to instantaneous ) switching the polarity of the supply voltage applied to the inductive coil of the emitter (item 2) with the corresponding current amplification (maximization). The response distance (the fact of successful transmission) of the digital signal depends on the magnetic field strength that the magnetic head (pos. 1) of the reader can register. So, the field that the emitter coil generates (pos. 3) must have significant attenuation (gradient enhancement) or field inhomogeneity so that the head (pos. 1) can detect the signal.

To increase the transmission response distance, a more intense field in the source (inductive coil of the emitter - pos. 2) is necessary. The maximum response distance is determined by the capabilities of the power source and the initial requirements for weight and size characteristics.

We have carried out numerous experiments, as a result of which precisely the significant differences of the elements of the transmission system (method) that are indicated in the claims have been selected. In the course of experiments with various coils, we determined that there is a practical possibility of transmitting digital data at a distance from the emitter inductive coil (pos. 2) to the head gap (pos. 1 1) of the reader, up to 30 cm between them.

We were able to achieve this result by using an inductive coil of the emitter (pos. 2) with a curly magnetic core (magnetic core of a horseshoe-shaped configuration) (not shown in Fig. 1 - Fig. 6).

This led to a local increase in the magnetic field strength. At the same time, we were able to register a qualitative increase in the magnetic field strength by indirect signs (by vibrations of the magnetically active element in the gap of the radiator) and directional field distribution.

However, when transmitting data using the indicated coil with a curly magnetic circuit (not shown in Fig. 1 - Fig. 6) at a distance closer than 10 cm, there is a risk of damage to the read head. Also, using a coil with a curly magnetic circuit, it is necessary to use a more powerful (about 60 W) power source.

The use of this coil (with a curly magnetic core) increases the thickness of the device (at least 2 times compared with the device used) by increasing the power source, coil dimensions, coil cooling system (stabilizing the characteristics during radiation) and electronic strapping taking into account (high power) characteristics . Since one of the requirements for the digital data transmission device by the inductive method (pos. 15) was compact size and low power consumption, an H-bridge was used to double the effective voltage that controls the emitter inductive coil (pos. 2).

In order to suppress dynamic effects (hysteresis and tightening of the signal front, harmonics due to inharmonious oscillations) in the inductance, the emitter inductive coil (pos. 2) was made with a low Q factor and with a magnetically neutral core (pos. 12). The prototype coil of the device had a quality factor of less than 10 μΗ / Ohm.

To reduce the quality factor, we proposed chaotic coil winding.

(i.e. disordered stacking of turns). It was experimentally established that an increase in the length of the inductive coil of the emitter (pos. 2) leads to a deterioration (in the logarithmic dependence) of the operating range, and a thick (more than 2 mm thick) cylindrical coil does not meet the overall requirements. As a result of this, it was decided to use a flat coil with the axis of the winding parallel to the plane of the inductive coil of the emitter (item 2).

In connection with this constructive solution, we experimentally established the polarization effect. It consists in the fact that at low radiation energies, the operating distance was greater with the parallel orientation of the winding axes of the emitter inductive coil (pos. 2) and inductance (pos. 20) in the magnetic head (pos. 1).

In turn, with the perpendicular arrangement of the axes of the reader coils (pos. 10) and the emitter (pos. 12), the smallest (even before failure in direct contact with the read head) distance range of stable data transmission between the inductive coil of the emitter (pos. 2) and reader (pos. 9). With a significant (more than 5 W) increase in the radiation energy, the polarization effect was not observed. Given the polarization effect, the negative effect on the core (pos. 9) of the read head (pos. 1), which is not magnetized, was reduced.

It was found that the noise signal (harmonics and magnetic noise of the medium) has little effect on the transmission of digital data, since the magnetic field gradient creates a signal that is much stronger than the noise level, and which can be detected by less sensitive amplifiers and detectors. In the present invention, a direct digital signal synthesis circuit is introduced into the device, the synthesized signal samples of which are calculated using a real-time digital computer microsystem or a chip with delayed command processing, which is performed with the possibility of sequentially setting the value of the current signal frame at the terminals of a two-bit digital bus with a digital reproduction frequency signal range from 0 Hz to 4 KHz. This gives the effect in which the distortion of the digital signal synthesizer does not depend on the frequency of the reproduced signal.

At the same time, the scheme used for direct digital signal synthesis is a module in which you can directionally change the composition and relative position of the structural elements that make up the circuit, as well as directionally control its properties - change the shape or type, duration, and frequency of the generated outgoing signal. This allows you to automatically tune the digital signal synthesis module to the maximum efficiency depending on the parameters of the magnetic antenna with the inductive coil of the emitter (2).

In the developed invention, a binary (two-level) digital pulse-width modulation is used to control the radiation power, in which the periods between the edges of the clock pulses remain stable. This allows you to stabilize the frequency of the radiation when the device that implements the method, at the maximum radiation power of the inductive coil.

The claimed method of the invention is also characterized in that the flat core (19) of the inductor (2) is made of magnetically neutral or magnetically conductive material, an oblong shape of a rectangular cross section with rounded edges in the form of broken faces, and the inductive coil of the emitter (2) with a quality factor ranging from 0.0001 μΗ / Ohm to 1200 μΗ / Ohm. This embodiment of structural elements that implement the method, helps to achieve the declared technical result of the invention.

The claimed advantageous arrangement of the axis of the inductor and the read head in parallel and at a distance of up to 30 cm is not a priori obvious. We experimentally investigated many options for the relative positions of the inductor and the read head, as a result of which a special magnetic antenna with inductive was developed and applied for this method the emitter coil, which was made with a special magnetic flat core of magnetically neutral or magnetically conductive material, made of an oblong shape of a rectangular cross section with rounded edges in the form of broken faces.

The study showed that this method makes it possible to induce data transmission at a distance of up to 30 cm without loss and distortion, which is theoretically impossible to predict or calculate.

Another distinctive feature of the used devices that implement the claimed method is that the digital data transmission device that implements this method is equipped with an inductor capable of generating magnetic lines of force, and is configured to switch the polarity of the supply voltage applied to the inductive coil of the emitter which is made with a magnetic flat core of a magnetically neutral or magnetically conductive material. Moreover, the axis of the inductor and the read head are predominantly parallel and at a distance of up to 30 cm.

Regarding the use of tracks. In the claimed method, the inductive method of transmitting digital data (15) is capable of emulating one track, namely either number 1 (track 1), or number 2 (track 2), or number 3 (track 3). It was found that this embodiment of the transmitting device maximizes security and minimizes distortion of the transmitted digital data, since this device uses an autonomous sequential transmission of tracks, which also increases the reliability of the transmitted digital data.

As a driver of the emitter, the developed method uses a high-frequency switch with a mid-point consumption and stabilization of the mid-point voltage relative to the upper and lower power points. This allows you to most effectively maintain the waveform of the positive and negative half-periods of radiation, while protecting from the failure of the emitter driver while turning on the upper and lower keys.

The difference of the claimed invention is also that as a computing system can be used any multifunctional gadget, or a controller with an operating system configured to record details. The claimed technical solution allows in advance, at the stage of the identification procedure, to establish the identity of the card holder and authorize it without storing identification and payment data in a digital data transmission device. The use of an operational amplifier with a variable gain and ultra-low consumption in a digital data transmission device can significantly save energy consumption to increase the duration of work from an autonomous power source.

In addition, the claimed technical solution allows you to remotely or locally, directly in the digital data transmission device, upon command, to monitor the status of the device and monitor the level of charge of the system’s power supply for timely notification and the corresponding response when changing parameters.

The claimed technical solution also allows you to protect the driver of the emitter of the device for transmitting digital (payment) data from failure in the event of a sudden (accidental) change in the power of the device, as well as in the event of a malfunction of the device software.

Thus, the fundamental difference between the developed technical solution and the well-known technical solutions lies in the use of advanced technology and its implementing device to ensure safe, noise-resistant, wireless (remote) and reliable transmission of payment data (digital information), including recharging by converting magnetic pulses of identification data at a distance of up to 30 cm.

Moreover, in this technology, the standard POS terminal is used only as a receiver of the above information transmitted remotely. While well-known technical means use both the contact type of reception of (payment) information and non-contact reception of (payment) information at a distance not exceeding 1-2 inches, with its mandatory storage, which dramatically increases the likelihood of its unauthorized access (hacking) and losses.

In addition, the claimed technical solution allows you to use almost all known interfaces for pairing, which makes it easy to integrate this invention with many existing computing and communication devices, as well as payment systems. The best embodiment of the invention

An inductive method for transmitting digital data is assembled (15) as part of a digital signal synthesizer or direct digital signal synthesis circuit (6), a communication or computing system module (23) with preinstalled software, a charging module (24) of a power source (26) of a radio wave receiving device by the inductive method from the radiation source of the mobile device, which is located on / on the mobile computing and communication system (14), the blue-tooth wireless transmission module (25), and the peripheral interface device (27) I connection with the receiving device (16).

A digital signal synthesizer or direct digital signal synthesis circuit (6) is equipped with a real-time computing microsystem and connected to the driver (7) of the emitter, which is used as a high-frequency switch with a mid-point consumption and stabilization of the mid-point voltage relative to the upper and lower power points. In addition, the driver of the emitter (7) is performed according to the H-bridge scheme, which provides protection against the simultaneous activation of the upper and lower keys.

The driver of the emitter (7) is connected to the inductor (2). The latter is performed with the possibility of converting an alternating electromagnetic field into direct current with its transmission to an autonomous power source (26) of a mobile computing and communication system (14) for recharging it. In addition, the inductor (2) is performed with a quality factor that is in the range up to 1200 mil / Ohm, as well as with the possibility of generating an electromagnetic field (3) and inducing voltage in the charging module of the power source (24). The latter is positioned predominantly in parallel with or corresponding to the placement of the antenna of the mobile device.

A digital signal synthesizer or a direct digital signal synthesis circuit (6) is configured to generate an outgoing digital signal in advance of a given shape and time intervals, and to ensure that there is no distortion of the outgoing digital signal regardless of its frequency, as well as with the ability to switch voltage polarity power applied to the inductor (2), and the transmission of digital data due to the phenomenon of magnetic induction in the receiving device (16) with the magnetic head (1) of the reader at a distance to 30 cm. In this case, the device for transmitting digital data by the inductive method (15), as a rule, is located separately from the housing of a communication or computer system with preinstalled software (14).

The recharging module of the power supply of the device (24) is removable and can be moved and subsequently fixed (for example, using Velcro) on the cover (23) of a communication or computer system with preinstalled software (14) depending on the location (i.e. top, bottom, or side) of its antenna (22). The blue-tooth wireless transmission module (25) is also connected to a peripheral interface device (27), intended for communication with a receiving device (16).

That is, in fact, the charging module for the power supply of the device (24), the wireless transmission module of the blue-tooth type (25), the power supply (26) of the communication or computer system with preinstalled software (14), as well as the peripheral interface device (27) are located on the cover plate a communication or computing system with preinstalled software (14) and mainly from its rear side.

Next, non-contact remote charging of the autonomous power source of the mobile device is carried out during the emission of electromagnetic waves during the transmission of digital (voice) data, as well as when making contactless payments using the digital data transmission device by the inductive method (15).

This is realized by radiation of the signal of the inductor (2) of the digital data transmission device by the inductive method (15) to the charging module (24) of the device for receiving electromagnetic induction waves in the form of low-frequency pulses.

After activating a communication or computer system with preinstalled software (14) for making telephone conversations and / or transmitting digital data, including payments, a digital output signal from the antenna (22) of a communication or computer system with preinstalled software (14) using the channel contactless payment data transfer (21) enters the blue-tooth type wireless transmission module (26) of the inductive method of transmitting digital data (15).

The recharging module of the device (24) performs charging by converting an alternating electromagnetic field from a mobile device at the time of making telephone conversations and / or transmitting digital data to direct current flowing further to an autonomous power source (26), i.e., the desired recharging of the device’s power source (26) occurs.

The same thing happens both when transmitting digital and / or voice data, including when making payments using the inductive method of transmitting digital data (15), and in the absence of the above actions, but in the latter case, having the inductive digital device method (15) in conjunction with a communication or computer system with installed software (14) within the radius of action of the nearest base transceiver station of mobile communication (28) with an antenna (29), or similar in functional purpose eniyu device, e.g., POS-terminal (16).

The recharging module of the power source of the digital data transmission device by the inductive method (15) operates in the process of transmitting digital data (payments) by inducing an alternating electromagnetic field from the inductor coil (2) to the charging module of the device (24). In this case, the charging recharge rate depends on the frequency (quantity) of payments made by the digital data transmission device.

In the process of operation of a mobile device, the polarization of the signal of the inductor (2) is used and the normalized radiation power of the signal of the inductor (2) is controlled by using binary pulse-width modulation, as well as by changing the polarity, which consists in quickly switching the polarity of the supply voltage applied to the inductor (2) , with simultaneous amplification of the current in it, as well as by creating a peak change in the magnetic field on a magnetic reader (1).

Contactless digital data transmission is controlled using appropriate software installed in a communication or computer system (14), which is located in a mobile device.

The inductive method of charging a digital data transmission device with an inductive method (15) operates during telephone calls at the frequency of the output signal transmitted at a frequency of 900 MHz or 1800 MHz, as well as during data transmission with an output power of max 2 W, and at voltage (DC) from module (24) in the range (3.7 - 4.2) V, and with current strength (500 - 2000) tA.

When the battery (26) of the communication or computer system with preinstalled software (14) is fully charged, the indicator light and / or (or without it) sound signal (or without it). This signals the User about the completion of recharging, and the indicator (or without it) flashes red and yellow during charging, and lights up green when the communication or computer system with installed software (14) is fully charged. At the same time, the display (screen) (30) of the communication or computing system with preinstalled software (14) displays the icon (31) for the battery charging status (26).

It was found that the full recharging of a communication or computer system with preinstalled software (14) is provided during telephone conversations and / or transmission of digital and / or voice data using an inductive method for transmitting digital data (15) for at least 168 hours.

In the case of digital data transmission, incl. making payments, digital data is transmitted by a secure channel and stored in a protected area of software (pos. 18) installed in a computer system (smartphone, phone, tablet, etc.) that supports the inductive method of transmitting digital data (15) .

Using a computing system (smartphone, phone, tablet, etc.) with installed software (pos. 18), payment information is transmitted to the digital data transmission device by the inductive method (pos. 15), and then to the card reader (pos. 18). twenty).

For example, to carry out a payment transaction, the POS terminal uses the information contained in track2 (according to the ISO / IEC 7813 standard). Using the digital data transmission device by the inductive method (pos. 15), information is transmitted in the form of magnetic field oscillations, creating a signal in the read head (pos. 1), similar to the magnetic strip signal (not shown in Fig. 1 - Fig. 6) of the payment card (figure 1 - figure 6 is not shown).

In this example, the normalized radiation power is controlled by quickly switching the polarity of the supply voltage applied to the inductor (2), which is 1 s for each switching.

That is, in addition to payment information through an inductive method for transmitting digital data (key 15), which operates on the basis of the inductive method for transmitting digital data, any digital information is transmitted. A computer system with installed software (pos. 18) can be implemented as part of an authorization and identification system that ensures the safety of storage and transmission of digital information. In this case, the device for transmitting digital data by the inductive method (pos. 15) does not store digital information, but serves only as a means of its transit transmission. This makes it impossible to use digital (primarily payment) information by any other user except an authorized user.

Also, the claimed technical solution implements the one-time-pin function, which contributes to information security even in the event of unauthorized access to payment data.

If it is necessary to transfer payment data, the client contacts the organization authorized to issue the card to obtain information on the client’s account, which contains digital information and allows data transfer, for example, to carry out payment transactions when interacting with card readers, for example, POS- terminals.

The same information, including about the client’s account, about all payment details and other characteristics of the account that the issuing organization writes to magnetic stripe cards, is transmitted via a secure channel to the protected area of the software computer system (item 14) that interacts with Inductive digital data transmission device (pos. 15).

Using a computer system with installed software (pos. 18), the inductive method (pos. 15) is used to transmit digital information via the channel (21) via the channel (21) to the contactless card reader (for example, POS- terminal) without the physical use of a magnetic stripe card when transmitting data (for example, in calculations).

Industrial applicability

The advantages of the proposed technical solutions are:

• low power consumption (savings of 15% or more) compared with non-contact counterparts and prototype;

• the ability to work from USBotg;

• providing normalized (optimized, devoid of redundancy) radiation power, which complicates third-party data reading (ie, helps to strengthen transaction security); ^• ensuring minimization (that is, reduction to the minimum necessary level) of energy consumption and mass-dimensional characteristics due to standardization of radiation power;

^• synthesis of exclusively required signal characteristics by means of a computing microsystem;

• implementation of module consumption management in various operating modes of the device, which saves energy and leads to an increase in operating life without recharging;

^• full recharging of a mobile device, which is provided when making telephone conversations and / or transferring digital ones, including billing and / or voice data using an inductive method for transmitting digital data for at least 168 hours

The developed method complies with the wireless charging standard Qi vers.1.2 or previous versions.

Another advantage of the proposed method on the basis of the inductive method of transmitting digital data (pos. 15) is that the above device (15) does not store digital (including payment) information, due to which it is a security tool. The inductive method for transmitting digital data (key 15) also does not contain a magnetic card reader, which prevents the unauthorized distribution of protected information.

The method for transmitting digital data using the inductive method (pos. 15) as part of the system of the same name is portable, compact and energy-efficient in comparison with existing contactless analogs and a prototype. This allows it to be used as part of the USB2.0 and USBotg power consumption standard. According to these standards, the power that is provided to the consumer is up to 2.5 W (5V, 0.5 A).

The system of inductive transmission of digital (payment) data makes it possible to dynamically generate data by available computing / communication tools for identification in (payment) systems such as POS-terminal.

The developed technical solution is aimed at providing the possibility of non-contact remote transmission of electricity to wireless devices keyboards, computer mice, mobile phones, smartphones, tablets, photo, video, web cameras, handheld computers, active RFID tags, wireless remotes and input devices, including to recharge the power source of the mobile device, as well as any other low-power wireless devices.

Thus, the implementation of the claimed technical solution that meets the requirements and requirements of the modern market, provides the ability to service all types of transactions and various types of payment accounts, as well as the transfer of digital information and recharging.

Claims

Claim

1. The method of non-contact remote charging of an autonomous power source for mobile devices by the inductive method, made, for example, in the form of a computer, mobile phone, smartphone, tablet or other electronic device, and a communication system, with an autonomous power source, which consists in radiation using a radiating antenna in the form of a narrow-band high-frequency generator of electromagnetic waves of a certain frequency, which is located in a mobile device, and in pointing the signal alternating EMF of the charging current with an amplitude depending on the distance to the emitter of electromagnetic waves, and subsequently ensuring the conversion of the alternating voltage into a constant voltage, which slowly changes with time, or into a pulse voltage, which should not be lower than a predetermined threshold level for a charged autonomous source power supply in the form of a battery, which is characterized in that the contactless remote charging of an autonomous power source of a mobile device is carried out in the process e radiation of electromagnetic waves when making telephone calls, transmitting digital or voice data, making contactless payments using the inductive method of transmitting digital data (15) by emitting an inductor signal (2) of the inductive method of transmitting digital data (15) to the charging module (24 ) devices for receiving electromagnetic induction waves in the form of low-frequency pulses, and when transmitting electromagnetic waves at a GSM frequency from a source of high-frequency radiation from mobile devices a, which contains a GSM-module of high-frequency radiation, as well as in the absence of the above actions when the digital data transmission device inductively receives (15) electromagnetic waves when the digital data transmission device is inductively (15) within the radius of the nearest base transceiver mobile station a communication device or similar device containing a GSM module of high-frequency radiation, for example, a POS terminal with a GSM modem, a mobile phone, a tablet with a GSM module, and the transmission device The digital data by the inductive method (15) are performed as part of a digital signal synthesizer or direct digital signal synthesis circuit (6), which are equipped with a real-time computing microsystem, and connected to the driver (7) of the emitter, which is connected to the inductor (2), the charging module (24) of the power source (26) of the radio wave receiving device inductively from the radiation source of the mobile device, which is located in a mobile computing and communication system (14), a blue-tooth wireless transmission module, a peripheral interface device (27) with a reading head of a magnetic card reader (9), and a interface device (4), the digital signal synthesizer or a direct digital synthesizer circuit the signal (6) is configured to generate an outgoing digital signal in advance of a given shape and time intervals, and to ensure that there is no distortion of the outgoing digital signal regardless of its frequency, as well as with the ability to switch the polarity of the supply voltage applied to the inductor (2), and transmission of digital data due to the phenomenon of magnetic induction in the receiving device (16) with the magnetic head (1) of the reader at a distance of up to 30 cm, as a driver of the emitter (7) use a high-frequency switch with the middle point of consumption and stabilization of the midpoint voltage relative to the upper and lower power points, and the driver of the emitter (7) is executed according to the El-bridge scheme, which provide protection against simultaneous switching on of the upper and lower keys, the inductor (2) is configured to convert an alternating electromagnetic field in direct current with its transfer to an autonomous power source (26) of a mobile computing and communication system (14) for recharging it, and perform with a quality factor that is in the limit up to 1200 mH / Ohm, as well as with the possibility of generating an electromagnetic field (3) and inducing voltage in the charging module of the power source (24), which is located mainly parallel to or corresponding to the placement of the antenna of the mobile device, the polarization of the inductor signal is used during the operation of the mobile device (2 ) and regulate the normalized radiation power of the inductor signal (2) by using binary pulse-width modulation, as well as by changing the polarity, which consists in quickly switching and the polarity of the supply voltage applied to the inductor (2), with simultaneous amplification of the current in it, and also by creating a peak change in the magnetic field on the magnetic reader (1), and the contactless transmission of digital data is controlled using the appropriate software installed in a communication or computing system (14) that resides in a mobile device.

2. The method according to claim 1, characterized in that the device for transmitting digital data by the inductive method (15) is located outside the housing of the mobile device.

3. The method according to claim 1, characterized in that the charging module of the power source is removable, as well as with the possibility of movement and subsequent fixation on the pad of the mobile device, depending on the location of its radiating antenna.

4. The method according to claim 1, characterized in that the power supply charging module, the blue-tooth wireless transmission module, the power supply of the mobile device, as well as the peripheral interface device (27) are located on the back of the mobile device from its back side.

5. The method according to claim 1, characterized in that the real-time computing microsystem is performed primarily in the form of a microcomputer.

6. The method according to claim 1, characterized in that the interface device (4) when connected to a communication or computer system with installed software (software) (14) is identified as a serial port of the RS232, UART standard, with which commands are transmitted and data to the digital data transmission device by inductive method (15).

7. The method according to claim 1, characterized in that the digital data transmission device by the inductive method (15) is equipped with a real-time computing microsystem, which is configured to synthesize the transmitted signal.

8. The method according to claim 5, characterized in that the signal synthesizer (6) is equipped with a delayed command processing microsystem or a real-time computing microsystem, which is configured to sequentially set the value of the current signal frame at the terminals of a two-bit digital bus with a digital signal playback frequency of ranges from 0 Hz to 4 KHz.

9. The method according to claim 1, characterized in that as an emitter driver (7) an operational amplifier is used.

10. The method according to claim 1, characterized in that in the device for transmitting digital data by the inductive method (15), an interface device (4) is used from a communication or computer system with installed software (14), which perform with the possibility of transmitting digital, including payment, data and commands of the digital data transmission device by the inductive method (15) and with the ability to check the status of this device (15).

1 1. The method according to claim 1, characterized in that the interface device (4) with a communication or computer system with installed software (14) is performed with the ability to maintain standard data transfer methods, such as, for example, blue - tooth, UART, RS232, NFC, USB, wi-fl and others.

12. The method according to p. 1, 1 and 12, characterized in that the interface device (4) is made in the form of buttons or mode switches, and the normalized radiation power is controlled by quickly switching the polarity of the supply voltage applied to the inductor (2), which ranges from 10 ^{~ 6} s to 10 s for each switching.

13. The method according to claim 1, characterized in that the flat core (19) of the inductor (2) is made of magnetically neutral or magnetically conductive material.

14. The method according to 14, characterized in that the flat core (19) of the inductive coil of the emitter (2) is oblong and rectangular in cross-section in the form of broken faces.

15. The method according to claim 1, characterized in that the winding of the inductor (2) is made of conductive materials with insulation of each coil from adjacent turns, or with ordered or disordered stacking of turns.

16. The method according to claim 1, characterized in that the inductive method of transmitting digital data (15) is either in the form of a protective cover on a communication or computer system with installed software (14), or in the form of a key fob, or in the form of a bracelet (14).

17. The method according to claim 1, characterized in that the device for transmitting digital data by the inductive method (15) is performed as an external module built into a communication or computer system with installed software (14).

18. The method according to claim 1, characterized in that they increase the transmission distance of the output signal using the polarization of the radiation of the magnetic field.

19. The method according to claim 1, characterized in that the module for charging the power source of the digital data transmission device by the inductive method (15) is configured to function during telephone negotiations at the output frequency of the transmitted signal 900 MHz or 1800 MHz, as well as when transmitting data with an output power of max 2 W, and at voltage (DC) from the module (25) in the range (3.7 - 4.2) V, and with power current (500 - 2000) hPA.

20. The method according to claim 1, characterized in that the method complies with the wireless charging standard Qi vers.1.2 or previous versions.

21. The method according to claim 1, characterized in that for the diagnosis of a full charge of the mobile device’s battery, a light indicator is used to signal the user that charging is complete, and the indicator blinks in red and yellow during charging, and lights up in green when the battery of the mobile device is fully charged.

22. The method according to claim 1, characterized in that for the diagnosis of a full charge of the battery of the mobile device, an audio signal is used, signaling the user about the completion of recharging.

23. The method according to claim 1, characterized in that for the diagnosis of a full charge of the battery of the mobile device, an audio signal and a light indicator are used at the same time, signaling the user that charging is complete, and the indicator blinks in red and yellow during charging and lights up green when it is finished .

24. The method according to claim 1, characterized in that the digital data transmission device by the inductive method (15) is performed with the function of automatically stopping recharging when the battery of the mobile device is fully charged.

25. The method according to claim 1, characterized in that the battery charge status icon is displayed on the screen of the mobile device.

26. The method according to claim 1, characterized in that the charging module of the power source is located near the emitting antenna of the mobile device.

27. The method according to claim 1, characterized in that the full recharging of the mobile device is provided when making telephone calls and / or transmitting digital, incl. billing and / or voice data using an inductive method of transmitting digital data (15) for at least 168 hours

28. The method according to claim 1, characterized in that the charging speed varies depending on the frequency or amount of payments made by the digital data transmission device (15).