RU2748174C2 - Method of contactless data transmission - Google Patents

Abstract

FIELD: contactless data transmission.

SUBSTANCE: invention relates to methods for transmitting data. The method of contactless data transmission transmits data through an antenna and also performs operations with an accelerometer, a gyroscope, a reception-transmission module, a control device, a data source, a data receiver. While in operation, the control device reads data from the accelerometer and the gyroscope about the movements of the contactless data transmission and reception device. When the data on the movements made by the user coincide with the device for contactless transmission and reception of data in space, which are read by the accelerometer and gyroscope with the data on the code movement recorded in the memory of the device for contactless data transmission and reception, the control device transmits data from the data source through the reception-transmission module to the antenna for transmission to an external device and also receives data from the external device through the antenna, the transmission-reception module and transmits the data to the data receiver.

EFFECT: impossibility of unauthorized connection and unauthorized reading of data from the device.

1 cl, 1 dwg

Description

The invention relates to methods of data transmission and can be used in contactless payment cards, mobile devices, for contactless data reading by payment terminals, mobile devices, devices using RFID tags, etc.

As a prototype, a device for contactless data transmission was selected (patent of Russia for invention No. 2000131621, dated 01/10/2003, IPC G06K 7/00, G06K 19/07), containing a device for transmitting and receiving data, at least one portable data carrier, wherein the device for transmitting and receiving data comprises a transmitter for generating a first signal with a given frequency, a receiving device for receiving a signal with a given frequency, an impedance-converted antenna, which is connected to the transmitting device and the receiving device, and a power source, and a portable data carrier comprises a data carrier antenna for receiving or transmitting an induced signal, and a circuit device connected to the data carrier antenna and designed to process the induced signal and generate a signal that is transmitted to the antenna of the data transmitting and receiving device, wherein the antenna of the data transmitting and receiving device has total impedance consisting of reactance non-zero BF and ohmic loss resistance RF, if the portable data carrier is not inductively coupled to the antenna.

The disadvantage of this device is the presence of the possibility of unauthorized connection and unauthorized reading of data from the device for contactless transmission and reception of data.

The basis of the invention is the task of eliminating the possibility of unauthorized connection and unauthorized reading of data from a device for contactless transmission and reception of data by changing the method of working with data.

The problem is solved by the fact that the method of contactless data transmission transmits data through the antenna, additionally performs operations with the receiving and transmitting module, control device, memory, accelerometer, gyroscope, data source, data receiver.

The common features of the prototype of the technical solution is the transmission of data through the antenna.

Distinctive features of the technical solution are: the implementation of operations with the receiving and transmitting module, control device, memory, accelerometer, gyroscope, data source, data receiver.

The combination of essential features ensures the impossibility of unauthorized connection and unauthorized reading of data from a device for contactless data transmission and reception by changing the method of working with data.

The essence of the technical solution is explained by the diagram of the method for contactless data transmission in the drawing.

The method of contactless data transmission works with an accelerometer 1, a gyroscope 2, an antenna 3, a reception-transmission module 4, a control device 5, a data source 6, a data receiver 7, a memory 8, and antenna 3 is connected to a transmission-reception module 4, a reception module transmission 4, accelerometer 1, gyroscope 2, data source 6, data receiver 7, memory 8 are connected to the control device 5.

The method of contactless data transmission is as follows. Code movement data recording mode. When a signal for recording code movement data is supplied from an external device to the antenna 3, this signal is transmitted by the transmit-receive module 4 to the control device 5. In this case, the control device 5 will wait for user confirmation by reading the data from the accelerometer 1 and the gyroscope 2. This the action is necessary to prevent unauthorized recording of data on the code movement in the memory 8 of the device for contactless transmission and reception of data. A code movement is understood as a set of movements and rotations of the device in space (as a special case, it can be a triple shaking) made by the user. At the same time, data on some code movement has already been recorded in the memory 8 of the device. When the data on the movements made by the user with the device in space, which are read by the accelerometer 1 and the gyroscope 2, coincide with the data on the code movement recorded in the memory 8 of the device, the control device 5 reads the data, through the accelerometer 1 and the gyroscope 2, about the new code movement user and writes data about him to memory 8. Subsequently, these data will be used for comparison with the incoming data from accelerometer 1 and gyroscope 2.

Work mode

When a signal of the start of data transmission and reception is supplied from an external device to the antenna 3, this signal is transmitted by means of the transmission-reception module 4 to the control device 5. In this case, the control device 5 reads data from the accelerometer 1 and the gyroscope 2 about the movements of the device. When the data on the movements made by the user with the device in space, which are read by the accelerometer 1 and the gyroscope 2, coincide with the data on the code movement recorded in the memory 8 of the device, the control device 5 transmits data from the data source 6 through the transmission-reception module 4 to antenna 3 for transmission to an external device, and also receives data from an external device through antenna 3, transmission-reception module 4 and transmits them to data receiver 7.

Execution example

The adxl345 accelerometer can be used as an accelerometer. Crm200 gyroscope can be used as a gyroscope. The antenna can be eccel rfid-ant1356-25x25-800 v1. The cf-mh300 module can be used as a transmit-receive module. The at91sam9g20b-cu microcontroller can be used as a control device. 24aa1026-i / p can be used as memory. 24c64a can be used as data source. The am29f040 can be used as a data receiver.

In the method for contactless transmission and reception of data, the possibility of unauthorized connection and unauthorized reading of data from a device for contactless data transmission and reception is eliminated by changing the method of working with data.

Claims (1)

The method of contactless data transmission transmits data through an antenna, and also performs operations with an accelerometer, a gyroscope, a reception-transmission module, a control device, a data source, a data receiver so that during operation the control device reads data from the accelerometer and gyroscope about the movements of the contactless transmission device and receiving data; when the data on movements made by the user with the device for contactless transmission and reception of data in space coincide, which are read by the accelerometer and gyroscope with the data on the code movement recorded in the memory of the device for contactless data transmission and reception, the control device transmits data from the data source through the receiving module -transmission to the antenna for transmission to an external device, and also receives data from an external device, through an antenna, a transmission-reception module, and transmits them to a data receiver.

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