WO2015005820A1

WO2015005820A1 - Method and system for transferring data between devices, taking into account the relative positions thereof

Info

Publication number: WO2015005820A1
Application number: PCT/RU2013/000752
Authority: WO
Inventors: Алексей Валерьевич КАЛИНИН; Максим Алексеевич КАМАНИН; Андрей Михайлович СМИРНОВ; Максим Александрович СОКОЛОВ
Original assignee: Дисплаир, Инк.; Обществос Ограниченной Ответственностью "Шеир"
Priority date: 2013-07-11
Filing date: 2013-08-30
Publication date: 2015-01-15
Also published as: RU2013132026A

Abstract

A method for wireless transmission of data between terminal devices contains the following steps: establishing a connection between terminal devices and a server; determining geolocation data for the terminal devices and sending same to the server; determining orientation data for the terminal devices; determining potential partner-devices for each terminal device on the basis of the geolocation data; directing two terminal devices, between which data must be transferred, to one another; determining a first terminal device, which initiates the establishment of communication with a potential partner-device, on the basis of the terminal device orientation data; transmitting orientation data of the first terminal device to the server; determining a second terminal device, acting as the partner-device for the first terminal device, on the basis of the geolocation data and the orientation data of the first terminal device and of potential partner-devices; establishing a connection between the first terminal device and the second terminal device; transmitting data between the first terminal device and the second terminal device; breaking the connection between the first terminal device and the second terminal device. A system for the wireless transmission of data between terminal devices carries out the said method.

Description

METHOD AND SYSTEM FOR DATA TRANSFER BETWEEN

DEVICES ACCORDING TO THEIR MUTUAL LOCATION

FIELD OF THE INVENTION

The invention relates to the field of data transmission, in particular, to a method for wireless data transmission between mobile terminal devices or between a mobile terminal device and a stationary terminal device, taking into account the relative position of these devices.

State of the art

For targeted data transfer between users of mobile devices, identification and authorization of the sender and recipient of data is required. For example, the identification and authorization of devices when connecting via the Bluetooth interface is carried out by means of visual control by the user of the device name and in some cases requires a password. In order to simplify the identification and authorization procedure, various methods are proposed based on the physical location or physical interaction of mobile devices.

Patent Application WO2011119499 (Bump Technologies Inc.) describes a method for identifying and authorizing two mobile devices using accelerometer readings when impacting mobile devices for further data transfer between these devices. The range of this method is limited by the length of the user's extended arms, in addition, the impact of mobile devices may not always be acceptable.

US2008195735 (Microsoft Corp.) describes a method.

identification and authorization of two mobile devices in the collision of mobile devices for further data transfer between these devices. The range of this method is limited by the length of the user's extended arms, in addition, the impact of mobile devices may not always be acceptable.

US2011163944 (Apple Inc.) describes a method for establishing communication using determining the relative position of two or more devices, in which the first device receives from other devices the vector coordinates of other devices in the inertial coordinate system ECEF (Earth Centered Earth Fixed) common to all of these devices. Further, based on the obtained vectors the first device calculates the line of sight vector for each of the other devices and compares it with the user’s gesture vector on the touch screen of the first device, determining which of the other devices the user’s gesture is most likely aimed at. At the same time, the specified application does not disclose a method for determining the vector coordinates of devices in the inertial coordinate system ECEF, therefore, the reliability of the correct determination of the partner device remains unclear.

US2011004329 (Microsoft Corp.) describes a method for refining magnetometer readings, in which the magnetometer and accelerometer are pre-calibrated, then the magnetometer readings are refined based on the calculation of pitch, roll and yaw according to the accelerometer, then the yaw angle

specified by the readings of the magnetometer. Moreover, the proposed method has a number of limitations, in particular, it is ineffective in the presence of fields that distort the Earth's natural magnetic field.

US20080299912 (Sony Corp.) describes a method for determining collinearity of two wireless devices using readings

magnetometer for further data transfer between these devices. Moreover, the proposed method has a number of limitations, in particular, it is ineffective in the presence of fields that distort the natural magnetic field of the Earth, in addition, it provides the establishment of collinearity of two wireless devices,

located in one plane, which in itself does not provide reliable automatic identification and authorization of the transfer destination in other cases and requires the use of additional means of identification and authorization.

Patent application US20110092155 (Apple Inc.) describes a method for establishing communication between two mobile devices, in which, for identification and authorization of devices, the magnetometer measures the dynamic magnetic signature of the device, which is generated by a special generator and emitted using a magnetic loudspeaker system. Moreover, the proposed method requires a special generator in the devices, which limits its application, in particular, makes it difficult or impossible to use it in existing mobile devices that are not equipped with such a generator.

Patent Application EP2521342 (Research In Motion Ltd.) describes a method

establishing a connection between two mobile devices, in which for

identification and authorization of devices, the magnetometer measures the magnetic field of a device generated by an electromagnet. Moreover, the proposed the method requires a special electromagnet in the devices, which limits its use, in particular, makes it difficult or impossible to use it in existing mobile devices not equipped with such an electromagnet.

In patent application US2012220221 (Research In Motion Ltd.) describes a method of establishing communication between two mobile devices using NFC (Near Field Communication), in which communication is established between devices,

within the range of NFC, and depends on the orientation of the devices, which is determined by the NFC controller and, optionally, an accelerometer, optical sensor, gyroscope or magnetometer. The range of this method is limited by the range of the NFC, while the application does not disclose a method for determining the orientation of devices using an accelerometer, optical sensor, gyroscope or magnetometer, so the reliability of the correct determination of the partner device remains unclear.

Patent Application WO2011041434 (Qualcomm Inc.) describes a method for establishing communication between two mobile devices based on calculating a possible ballistic trajectory with a throwing gesture performed with one mobile device and comparing this trajectory with the location of another mobile device, which is determined by known methods. Moreover, the proposed method requires a certain space for the execution of the throwing gesture and may be inconvenient and / or unsafe in some circumstances.

Patent application US2010278345 (Apple Inc.) describes a method for establishing a connection between two mobile devices, in which a pair using an infrared, ultrasonic or radio frequency interface of a limited range (not more than 10 cm) is used to identify devices in pair, and an exchange is used to authorize devices verification information (passwords, etc.). Moreover, the proposed method requires user participation for authorization, i.e. not automatic.

US2010156812 (Verizon Data Services LLC) describes a method for establishing communication between two mobile devices based on calculating a gesture direction on a touch screen and comparing this direction with

the location of another mobile device, which is determined by known methods. However, in this application is not disclosed a method of determining the direction of the gesture and comparing this direction with the location of another mobile devices, therefore, the reliability of the correct determination of the partner device remains unclear.

Thus, at the current level of development of communication technology, there is a need to implement a devoid of the above disadvantages, easy to use, fast and reliable way to automatically establish communication between devices, at least one of which is mobile, for further data transfer between these devices, in particular, a method for identifying and authorizing the sender and receiver of data.

The aim of the present invention is the implementation of an easy-to-use method for wireless data transmission between terminal devices with

reliable automatic determination of a pair of terminal devices based on geolocation data and terminal device orientation data.

Another objective of the present invention is the implementation of an easy-to-use system for wireless data transfer between terminal devices with reliable automatic determination of a pair of terminal devices based on geolocation data and terminal device orientation data.

Brief Description of the Drawings

FIG. 1 contains an example of the composition of a system for wireless data transmission between terminal devices, taking into account the relative position of these devices.

FIG. 2 contains an example of a diagram of the process of waiting and generating a request to connect or disconnect a mobile device in accordance with the method of wireless data transmission between terminal devices, taking into account the relative positions of these devices.

FIG. 3 (A, B) contains an example of a process for a server to analyze geolocation data and orientation data of a mobile device in accordance with the method of wireless data transmission between terminal devices, taking into account the relative positions of these devices.

FIG. 4 contains an example of a process diagram for a server analyzing geolocation data and orientation data of a mobile device in accordance with a method for wireless data transmission between terminal devices taking into account the relative position of these devices. FIG. 5 contains an example of a geographic area diagram of a mobile device in accordance with a method for wireless data transmission between terminal

devices taking into account the relative position of these devices.

FIG. 6 contains an illustration of the degrees of freedom of a mobile terminal.

FIG. 7 (A, B) contains an example of the arrangement and orientation of two devices in a Cartesian coordinate system.

FIG. 8 contains an example of a partial diagram of a mobile terminal device.

FIG. 9 contains an example of a process diagram for interrogating orientation sensors and

calculating the specified yaw angle of the mobile device in accordance with the method of wireless data transmission between terminal devices, taking into account the relative position of these devices.

FIG. 10 contains an illustration of a method for correcting orientation data using gesture control.

Disclosure of invention

One aspect of the present invention is a method for wirelessly transmitting data between terminal devices, comprising the following steps:

(al) establish a connection of terminal devices with the server;

(A2) determine the geolocation data of the terminal devices and transmit them to the server;

(a3) determine the orientation data of the terminal devices;

(a4) identify potential partner devices for each terminal device based on geolocation data;

(a5) send two terminal devices between which it is necessary to transfer data to each other;

(ab) determining a first terminal device initiating communication with a potential partner device based on orientation data

terminal devices;

(a7) transmitting orientation data of the first terminal device to the server;

(a8) determining a second terminal device, which is a partner device for the first terminal device, based on geolocation data and orientation data of the first terminal device and potential partner devices;

(a9) establish a connection between the first terminal device and the second terminal device; (a 10) transmitting data between the first terminal device and the second terminal device;

(al 1) disconnect the connection between the first terminal device and the second terminal device.

At step (a4), additional storage is possible in the first terminal

device brief information about potential partner devices to expedite the receipt from the server extended information about potential partner devices for the first terminal device and caching in the server extended information about potential partner devices for the first terminal device.

In step (ab), it is possible to further check whether the first terminal device is connected to the second terminal device, and if it is determined that the first terminal device is not connected to the second terminal device, it is possible to determine whether the first terminal device is in a moving state or at rest .

If it is determined that the first terminal device is in a motion state, it is possible to check whether the previous state of the first terminal device is a motion state or a rest state. If it is established that the previous state of the first terminal device is at rest, it is possible to proceed to step (a8). If it is established that the previous state of the first terminal device is a state of motion, it is possible to proceed to step (a2).

If it is established that the first terminal device is at rest, it is possible to check for a request from the server to connect to the second terminal device. If a request is found from the server to connect to the second terminal device, it is possible to proceed to step (a9). If a request from the server for connection with the second terminal device is not detected, it is possible to check whether the previous state of the first terminal device is a motion state or a rest state. If it is established that the previous state of the first terminal device is a state of motion, it is possible to proceed to step (a7). If it is established that the previous state of the first terminal device is at rest, it is possible to proceed to step (a2).

If it is established that the first terminal device is connected to the second terminal device, it is possible to check for a request from the server to disconnecting from the second terminal device. If a request from the server to disconnect from the second terminal device is detected, it is possible to proceed to step (al l). If a request from the server to disconnect from the second terminal device is not detected, it is possible to proceed to step (aU).

The state of rest and the state of motion can be defined, respectively, as the state of rest and state of motion of the first terminal device relative to potential partner devices.

At step (a4), it is possible to additionally determine the geographical area to which each potential partner device belongs, and to determine the second terminal device in step (a8), taking into account the priority of the geographical area.

The geographical area and the priority of the geographical area can be determined based on the distance between the terminal devices.

It is possible to transfer data between the first terminal device and the second terminal device in step (a 10) directly between the first terminal device and the second terminal device via the connection established in step (a9), or partially directly between the first terminal device and the second terminal device through the connection established in step (a9), and partially through the connection of the first and second terminal devices to the server, established in step (al), or through the connection The first and second terminal devices with the server installed in step (al).

It is possible to continue the data transfer between the first terminal device and the second terminal device in step (aY) through the connection of the first and second terminal devices with the server after the execution of step (al 1). It is possible to continue the data transfer between the first terminal device and the second terminal device in step (aU) even if the execution of the other steps of the method is stopped.

The orientation data of the first terminal device and potential partner devices in step (a8) can be the pitch, roll and yaw angles and the rotation speed of each terminal device around three axes forming an orthogonal coordinate system. The orientation data of the first terminal device and potential partner devices in step (a8) may further comprise refined values of at least one of the pitch, roll and yaw angles of at least one of the terminal devices. Clarifying the value of at least one of the pitch, roll, and yaw angles may include the following steps:

(S) initialize a numeric array and a variable;

(B2) read the readings of the magnetometer, accelerometer and gyroscope;

(B3) calculate the pitch, roll and yaw angles and the rotation speed of the first terminal device;

(B4) calculating the difference between the value of at least one of the pitch, roll and yaw angles calculated based on the readings of the magnetometer and the value of the same angle calculated based on the readings of the gyroscope;

(B5) calculate the difference between the value obtained in step (b4) and the number of the largest element in the number array;

(B6) determine whether the first terminal device is at rest or in a state of motion based on the rotation speed values of the first terminal device calculated in step (b3);

(B7) if at step (b6) it is determined that the first terminal device is in a state of motion, the value of an element of a numerical array with a number equal to the calculation result in step (b4) is increased by one;

(B8) if it was determined in step (b6) that the first terminal device is at rest, the time elapsed after the first terminal device has stopped and the time during which the first terminal device has been in motion before it is stopped, and verify that the first, second and third predetermined conditions with respect to at least one of the following values: the time elapsed after the first terminal device stopped, the time during which the first terminal device was in the state of motion until it stops, and the result of the calculation in step (b5);

(B9) if the first predefined condition is satisfied, the value of the variable is taken equal to the result of the calculation in step (b5), and the value of the largest element of the number array is increased by one;

(L0) if the second predetermined condition is satisfied, the value of the element of the numerical array with a number equal to the result of the calculation in step (L4) is increased by one;

(bl 1) if the third predefined condition is satisfied, the value of the variable is taken equal to the result of the calculation in step (b5), the value of the largest element of the number array is increased by one, and the values of the time elapsed after stopping the first terminal device, and the time during which the first terminal device was in a state of motion before it stopped, zero;

(B12) specify the values of at least one of the pitch, roll and yaw angles based on the number of the largest element of the number array and the value of the variable;

(B3) return to step (b2).

At step (b4), it is possible to calculate the difference between the value of at least one of the pitch, roll and yaw angles calculated on the basis of the readings of the magnetometer and the accelerometer and the value of the same angle calculated on the basis of the readings of the gyroscope, and / or calculate the difference between the value of at least one of the pitch, roll and yaw angles calculated based on the readings of the magnetometer, and the value of the same angle calculated based on the readings of the gyroscope and accelerometer.

Clarifying the value of at least one of the pitch, roll, and yaw angles may further comprise the following steps:

(cl) reading the sliding motion of the finger of the user of the first terminal device in the direction of the second terminal device;

(c2) calculate the direction of movement of the finger of the user of the first terminal device;

(c3) specify the value of at least one of the pitch, roll and yaw angles based on the direction of motion calculated in step (c2).

In order to clarify the value of at least one of the pitch, roll and yaw angles, it is possible to calibrate orientation sensors containing the following steps:

(dl) have two terminal devices, between which it is necessary to transmit data, in the same plane close to each other, so that they are directed at each other;

(d2) enable calibration mode in both end devices;

(d3) transmitting to the server the values of at least one of the pitch, roll and yaw angles of both terminal devices;

(d4) calculating and writing to the database in the server the errors of at least one of the pitch, roll and yaw angles of at least one of these terminal devices; (d5) specify the values of at least one of the pitch, roll and yaw angles of at least one of these terminal devices, based on

the errors calculated in step (d4).

(el) directing the first terminal device to an object with predetermined exact coordinates;

(e2) include a calibration mode in the first terminal device;

(e3) transmitting to the server the values of at least one of the pitch, roll and yaw angles of the first terminal device;

(e4) calculating and writing to the database in the server the errors of at least one of the pitch, roll and yaw angles of the first terminal device;

(e5) specify the values of at least one of the pitch, roll and yaw angles of the first terminal device based on the errors calculated in step (e4).

The determination of the second terminal device in step (a8) can be performed manually by the user of the first terminal device, if the method does not automatically detect the second terminal device with the required reliability.

Manual determination of the second terminal device can be performed based on the extended information about potential partner devices that is received from the server. The result of manual determination can be entered into the database in the server, subjected to statistical processing, and the result of statistical processing can subsequently be used in step (a8) to increase the reliability of determining the second terminal device.

Based on the data of the geolocation of the terminal devices, it is possible to implement a multicast data transmission mode from the first terminal device to other terminal devices with respect to which a predetermined condition is fulfilled.

Another aspect of the present invention is a system for wirelessly transferring data between terminal devices, comprising a remote server, a transport network, and at least two terminal devices configured to implement the method described in any of the preceding paragraphs. The implementation of the invention

In FIG. Figure 1 shows an example of the composition of a system (9) for wireless data transmission between terminal devices, taking into account the relative positions of these devices (hereinafter, systems (9)). System (9) contains a remote server (1),

transport network (2), which may include any means of data transmission, including optical, wired, wireless and hybrid networks, and use any technology for wireless data transmission, including satellite, cellular,

microcellular, femtocellular communication, WiFi, ZigBee, BlueTooth, RFID, NFC, etc., providing the required technical characteristics of the communication channel (3), stationary terminal devices (4), including computers, payment system terminals, advertising broadcast points, electronic systems Help on request,

electronic guides, emergency warning systems, etc., and mobile terminal devices (5), including computers, tablet devices, smartphones, cameras, video cameras, etc., capable of exchanging multimedia data, including text, images ( fixed and moving), sound and data in special formats, and a wireless communication channel (6) between mobile terminal devices (5) or between mobile terminal devices (5) and

stationary terminal devices (4). In the following description, unless otherwise indicated, all that has been said with respect to mobile devices (5) is also true for

stationary devices (4) when they are considered as terminal devices of the system (9). Server (1) can be a single server, a group of servers (for example, with functional separation — a geolocation data server, user data server, application server, etc.) or a distributed network of servers.

In FIG. Figure 2 shows an example of a process for waiting and generating a request to connect or disconnect a mobile device in accordance with the method of wireless data transfer between terminal devices, taking into account the mutual arrangement of devices (hereinafter - the method). In step (10), the device (5) is connected to the server (1) via the transport network (2), registration

mobile device (5) on the server (1), receiving mobile device (5) stable geolocation data in order to determine its geographic location and transmitting geolocation data from mobile device (5) to server (1).

In step (11), the server (1) based on the geolocation data received from the mobile device (5) determines whether the mobile device (5) belongs to

geographical area, based on the analysis of the geographical area determines the potential partner devices for the mobile device (5) and transmits information on potential partner devices to the mobile device (5). Step (11) is described in more detail below with reference to FIG. 3.

In step (12), the mobile device (5) stores information about potential partner devices in order to quickly obtain from the server (1) extended information about potential partner devices if necessary.

In step (13), the mobile device (5) reads the readings of its orientation sensors and generates orientation data of the mobile device (5). Step (13) is described in more detail below with reference to FIG. 9.

In step (14), the mobile device (5) checks if there is a connection with any partner device. If the mobile device (5) is not connected to any partner device, then in step (15), the mobile device (5) checks whether it is in a moving state or at rest. Such verification is based on the readings of the orientation sensors of the mobile device (5), for example, at a frequency of 10 times per second. If the mobile device (5) is in a state of movement, then in step (19), the mobile device (5) checks whether its previous state was movement or rest. The previous state can be determined by comparing the last two sets of readings of the orientation sensors of the mobile device (5) or it can be determined in a more complex way, for example, using three, four, five, etc. the latest sets of readings of orientation sensors and corresponding weighting factors to ensure greater stability of the method. For this, the required number of sets of readings of orientation sensors is stored in the mobile device (5). If the previous state of the mobile device (5) was motion, the transition to step (27) is performed. If the previous state of the mobile device (5) was rest, then the mobile device (5) thus detects a transition from the rest state to the motion state and, in step (21), transmits orientation data to the server (1).

The transfer of the orientation data of the mobile device (5) to the server (1) upon detecting a transition from the rest state to the motion state allows avoiding unnecessary server (1) loading by a continuous stream of redundant data. After performing step (21), the transition to step (27) is performed. If it is determined in step (15) that the mobile device (5) is at rest, then in step (17) the mobile device (5) polls the server (1) and receives an updated from it W

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Information regarding the situation in the geographical area, including connection requests from potential partner devices.

In step (22), the mobile device (5) checks for a connection request in the received information. If a connection request is received, then in step (24), the mobile device (5) establishes a connection with the corresponding partner device for the subsequent transmission of user data. Such a connection can be made by any known method ^ supported by both devices establishing a connection, in particular, it can be direct (for example, via the WiFi or Bluetooth interface) or through the server (1) via any data transmission channel (for example, via the WiFi interface or system mobile communications). Alternative methods are also possible.

wireless local communication, for example, through a microcellular network or a femtocell network.

After establishing a connection with a partner device in step (24), the mobile device (5) in step (26) performs reception and / or transmission of user data, for example, reception and / or transmission of images.

If it turns out at step (22) that the connection request has not been received, then at step (23), the mobile device (5) checks whether its previous state was motion or rest. Such a check is generally similar to the check in step (19), and if the previous state of the mobile device (5) was at rest, the transition to step (27) is performed. If the previous state of the mobile device (5) was motion, then the mobile device (5) thus detects a transition from the motion state to the idle state and at the step (25) transmits orientation data to the server (1). After performing step (25), the transition to step (27) is performed.

If at step (14) the mobile device (5) determines that it is connected to the partner device, then at step (16) the mobile device (5) polls the server (1) and receives updated information from it regarding the situation in the geographical area, including disconnect requests from partner devices that are connected to. In step (18), the mobile device (5) checks for the disconnection request in the received information. If a disconnect request is received, then in step (20), the mobile device (5) disconnects from the corresponding partner device. After performing step (20), the transition to step (27) is performed. W 201

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In step (27), the mobile device (5) transmits the geolocation data to the server (1). After performing step (27), it returns to step (11).

It should be noted that the embodiment described above involves the establishment of communication and data exchange with only one partner device, however, in another embodiment of the invention, the method allows communication and data exchange with several partner devices at the same time if there are sufficient resources of the mobile device (5 ), for example, the performance of its processor, communication channel (3), for example, its bandwidth, and server (1), for example, taking into account its current load.

It should also be noted that in the embodiment described above, it is assumed that the partner device of the mobile device (5) for exchanging data with it is selected at rest. This avoids unnecessarily loading the server (1), however, this is not the only variant of the method and in another embodiment of the invention, the selection of the partner device and the exchange of data with it can be performed in a moving state, for example, when the mobile device (5) and the partner device in a moving vehicle or users of these devices are walking nearby. In this case, at step (23), the mobile device (5) may not interrogate all orientation sensors and / or use weighting factors, including dynamic ones, to decide on the need to transmit the orientation data of the mobile device (5) to the server (1).

In FIG. Figure 3 (A, B) shows an example of a process for a server analyzing geolocation data and orientation data of a mobile device in accordance with the method of wireless data transmission between terminal devices, taking into account the relative positions of these devices.

In step (1101), the server (1) based on the geolocation data received from the mobile device (5) determines the geographical area of the mobile device (5).

In step (1102), the server (1) selects potential partner devices for the mobile device (5). When choosing potential partner devices, the priority of the geographical area can be taken into account, for example, based on geolocation data, the server calculates the distance between the mobile device (5) and other

devices and the search for potential partner devices is first performed in the subzone with the highest priority (i.e. among the most closely located

potential partner devices), then in the subzone with medium priority (i.e., among the more remote potential partner devices) and only then in the subzone with lowest priority (i.e., among the most remote potential partner devices in a given geographic area). A phased search of potential partner devices can reduce the computational load on the server (1), since if one or several potential partner devices are detected in a higher priority subzone, searches in lower priority subzones may not be performed.

In step (1103), the server (1) transmits information about potential partner devices, which may be

identifiers of such devices, and caches extended information about

potential partner devices, which may include user profile elements for such devices and / or their geolocation data. At the same time, the server (1) transmits information about the mobile device (5) to potential partner devices and caches extended information about the mobile device (5).

Copying extended information about devices can reduce server response time when requesting extended information about potential partner devices from a mobile device (5) and when generating a connection request.

In step (1104), the server (1) receives from the mobile device (5) updated geolocation data transmitted in step (27) and orientation data, for example, when a previously moving mobile device (5) stops, transmitted in step (25). Geolocation data and orientation data may include the results of processing in a mobile device (5) data received from a receiver of a satellite positioning system, data from a receiver of signals from stationary beacons, beacons, etc., data from a receiver of a cellular communication system, data from a receiver local wireless network, magnetometer (compass), accelerometer (acceleration sensor), barometer (atmospheric pressure), gyroscope, etc.

It should be noted that the mobile device (5) transmits to the server (1) its geolocation data with a predetermined period, for example, once every few seconds or once every several minutes if it is connected to the server (1). This allows the server (1) to track the movement of the mobile device (5) and to timely update information about potential partner devices. Moreover, orientation data updated in the mobile device (5) is much more frequent, for example, ten times per second, is transmitted to the server (1) only when the movement starts and when the mobile device (5) stops moving or in other cases when the system (9) predicts the desire of the user of the mobile device (5) to begin data exchange. This avoids loading the server (1) by processing excessive data flow. W

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In step (1105), the server (1) checks for the presence of orientation data in the data received from the mobile device (5). If orientation data is detected, proceeds to step (1106). If no orientation data is detected, return to step (1101) is performed.

In step (1106), the server (1) processes the geolocation data and the orientation data of the mobile device (5). In more detail, step (1106) is described with reference to FIG. four.

In step (1107), the server (1) verifies that the conditions for connecting the mobile device (5) to the partner device are satisfied. If the join condition is satisfied, go to step (1108). If the connection condition is not fulfilled, return to step (1101).

At step (1108), the server (1) generates and transmits to both devices a request to connect the mobile device (5) with the partner device.

In step (1109), the server (1) receives user data from the mobile device (5) and / or from the partner device and transmits user data to the mobile device (5) and / or the partner device. Step (1109) is

optional and performed if the exchange of user data between the mobile device (5) and the partner device is carried out through the server (1).

It should be noted that the exchange of user data can be carried out directly between the mobile device (5) and the partner device, for example, on the basis of a peer-to-peer network, or through a server (1), for example, on the principles of a client-server architecture. User data exchange may

be carried out in two of these ways at the same time, for example, when transferring images from one mobile device to another, a low-resolution image can be transmitted via a direct connection using any known wireless interface, for example, WiFi or Bluetooth, which can take a matter of seconds or fractions of a second, and A high resolution image can be transmitted through the server (1) in the background, which can take several hours. In case of insufficient bandwidth of the communication channel (3) or the transport network (2) as a whole, a high-resolution image can be stored on the server (1) and remain available for subsequent download for a predetermined time.

After the exchange of user data is initiated in accordance with the described method, it can be carried out by means of the embedded and / or third-party software of the mobile device (5), even if the application implementing the described method is turned off. Steps (1110) - (1112) are essentially similar to steps (1104) - (1106) and their description is omitted.

In step (1113), the server (1) verifies that the condition for disconnecting the mobile device (5) from the partner device is satisfied. If the disconnect condition is satisfied, go to step (1108). If the connection condition is not fulfilled, return to step (1101).

At step (1114), the server (1) generates and transmits to both devices a request to disconnect the mobile device (5) from the partner device.

In step (1115), the server (1) receives user data from the mobile device (5) and / or from the partner device and transmits user data to the mobile device (5) and / or the partner device. Step (1115) is

optional and performed if user data is exchanged between the mobile device (5) and the partner device through the server (1).

It should be noted that the exchange of user data through the server (1) can continue even after the mobile device (5) is disconnected from the partner device. For example, after the mobile device (5) receives a low-resolution image directly from the partner device and authorizes the receipt of a high-resolution image through the server (1), the mobile device (5) can disconnect the direct connection with the partner device, while the high-resolution image is received permissions through the server (1) will continue until its completion.

After performing step (1115), it returns to step (1101).

In FIG. Figure 4 shows an example of a process for the server (1) to process geolocation data and orientation data of a mobile device (5) to further verify that the connection condition or disconnect condition with the partner device is fulfilled.

In step (11060), the server (1) calculates the distance between the mobile device (5) and potential partner devices based on geolocation data and ranks the list of potential partner devices based on the calculated distance.

At step (11061), server (1) generates a list of pairs of devices, one of which is a mobile device (5), and the second is a potential partner device directed at each other, for this server (1) requests

potential partner device geolocation data and orientation data, and enumeration of potential partner devices is performed according to the ranked list formed in step (11060). Each transmission to the server (1) of geolocation data and orientation data is accompanied by a time stamp corresponding to the time of formation of this data.

The orientation of the devices toward each other is determined by the orientation data in the local coordinate system associated with each mobile device. In general, these orientations include pitch angle, roll angle, and yaw angle. In addition, in one embodiment of the invention, the orientation data comprises an updated yaw angle calculated by each mobile device, as described in detail with reference to FIG. 9.

At step (11062), the server (1) checks the number of such pairs of devices. If no such device pairs are found, it returns to step (11060); if one such pair of devices is detected, proceeds to step (11064), if several such pair of devices is detected, proceeds to step (11063).

At step (11063), the server (1) further analyzes the probability of selecting a partner device for each such pair of devices to determine the most likely partner device.

At step (11064), the server (1) checks for the presence of the most likely partner device. If the server (1) is not able to identify the most likely partner device, the user of the mobile device (5) at step (11065) is invited to manually select the partner device from several devices in accordance with the list,

formed in step (11061).

In step (11066), the server (1) sets the flag for the presence of the most likely partner device, which is then checked as a connection condition in step (1107).

A geographic area is an area on or near the surface of the Earth of a particular shape and size. The geographical area of the mobile device (5) can be determined based on geolocation data obtained using a satellite positioning system, for example, global satellite positioning systems NAVSTAR, GLONASS,

regional satellite positioning systems Galileo, Beidou, IRNSS, QZSS, DORIS, using a terrestrial positioning system, for example, LAAS, NDGPS, using a cellular communication system, for example, using COO (Cell Of Origin) method, E-OTD (Enhanced Observed Time) method Difference), TOA (Time of Arrival) or by the AOA (Angle of Arrival) method, or using a local wireless network, for example, WiFi or Bluetooth. Methods for obtaining geolocation data using commercial positioning systems are well known in the art and are omitted. Obtaining geolocation data using a local wireless network, such as WiFi or Bluetooth, is based on the short range of these interfaces, when the known location of a WiFi access point or Bluetooth device is taken as an approximate

the location of the mobile device (5) located in the coverage area of such an interface. For example, the presence of two mobile devices in a WiFi network on board a ship, sea vessel or other object with limited and previously known geometric dimensions may indicate that these two devices belong to the same geographic area or high priority subzone. In this case, the user may be given the opportunity to indicate that he is on board an aircraft, sea or river vessel or other object with

limited sizes, for example, by selecting a specific menu item and transmitting the result of this selection to the server (1). When using local

of a wireless network for determining a geographical area, it is also possible to use triangulation methods similar to those used in known methods for determining location using cellular communication systems.

The shape of the geographical area depends on the method for determining the geographical area and can be round, elliptical, polygonal, etc. The geographic area can be essentially flat (for example, a projection onto the surface of the Earth) or three-dimensional (for example, have a vertical size attribute). The size of the geographical area also depends on the method for determining the geographical area and can range from several meters to several tens of meters, and in some cases several kilometers. A geographic area may be single or multiple. In FIG. 5 shows an example of a planar plural

a geographical zone consisting of several subzones of different priority: the subzone (101), in which the mobile device (5) is located, has the highest priority, the subzone (102) adjacent to the subzone (101) has an average priority, the far subzone (103) has the lowest priority.

The choice of the type of geographical area can be carried out manually by the user, or automatically, for example, taking into account the terrain, or semi-automatically with manual confirmation. So, for flat terrain, the default location may W

twenty

a flat geographical area is selected, and for highlands or for areas with high-rise urban areas, a non-flat one can be selected by default

a geographic area that has a thickness attribute, and the geolocation data of mobile devices may contain a height value above sea level. In addition, the choice of the type of geographical area can be carried out taking into account user profile data, for example, taking into account the declared hobbies or the current status of the user. So, for a user who is fond of mountaineering or parachuting, during his holidays or weekends, by default, a non-planar geographic area with a thickness attribute can be selected, and the geolocation data of mobile devices may contain a height value above sea level.

Optimization of the choice of the type of geographical zone allows you to reduce the excessive computational load on the server (1).

The local coordinate system X, Υ, Z is connected with the mobile device (5) so that the center of coordinates coincides with the center of mass of the mobile device (5), the Z axis is normal to the working surface of the mobile device (5), the X axis coincides with the longitudinal the axis of the mobile device (5), and the Y axis coincides with the transverse axis of the mobile device (5). For example, in the normal operating position of the mobile device (5), the Z axis is directed downward from the user, the X axis is directed forward from the user, and the Y axis is directed to the right of the user (FIG. 6). Mobile device (5) has six degrees of freedom: it can move along and

rotate around each of the coordinate axes X, Υ, Z, while the rotation around the axes (angles χ, ε, ω) is geometrically connected with the orientation data - roll, pitch and yaw angles.

The center of the local coordinate system of the mobile device (5) (point A in Fig. 7) is determined on the basis of geolocation data — geographic latitude, geographic longitude, and altitude — representing the coordinates in

spherical coordinate system. In a first approximation, the transfer from a spherical coordinate system to a Cartesian coordinate system is performed according to the formula:

where x _a , y _a , z _a are the coordinates of the center of mass of the mobile device (5), R is the conditional radius of the Earth, h is the height above sea level, φ is the geographical latitude, λ is the geographical longitude. For a more accurate determination of the coordinates of the mobile device (5), taking into account the ellipticity of the Earth, it is possible to perform calculations iteratively according to GOST R 51794-2008 or the constant R can be replaced by a function R ((p, Л), the value of which depends on geographical latitude and geographical longitudes, and the values of this function can be predefined and stored in system (9), for example, in tabular form, which also allows you to take into account the difference in the shape of the Earth from an ideal ball.

The orientation of the devices at each other in each pair is estimated by the angles of roll, pitch and yaw, as well as by the coordinates x _a , y _a , z _a and xb, yb, gb. If the devices in the pair are directed strictly at each other and the plane their workers

surfaces coincide, and the working surfaces themselves are directed in one direction, then the first directivity condition is satisfied

where a, yb are the roll angles, θ _α , bb are pitch angles and ψ _α ,

- yaw angles, which refers to three degrees of freedom - the rotation of devices located at points A and B, respectively, around each of the coordinate axes X _a , Y _a , Z _a , and Xb, Y _b , Z _b ,

respectively, and the second directional condition

which refers to three other degrees of freedom — displacement along each of the coordinate axes X, Υ, Z in FIG. 6. For example, as shown in FIG. 7 A, devices

located at points B and B 'have the same angles y, b, and but the devices located at points A and B are directed strictly at each other, and the devices located at points A and B' are not directed strictly at each other, since the device located at point B 'is offset along the coordinate axis Y _d .

To check the second directivity condition, the orthogonal coordinate system X _a , Y _a , Z _a with the origin at point A is converted to spherical and, using

the orthogonality of the coordinate system X _a , Y _a , Z _a and the values of the angles y _a , θ _α , ψ _α , the angles a _a , β _α are calculated for the vector AX _a (Fig. 7B). Then, based on the coordinates x _a , y _a , ζ _{α of} point A and the coordinates x, y, z, Zb of point B, the angles a _a ', D are calculated for the vector AB:

Similar calculations are performed for a potential partner device located at point B with respect to the mobile device (5) and the above-mentioned second directivity condition takes the form

The above-mentioned second directivity condition makes sense to check with sufficiently accurate determination of the coordinates x _a , y _a , z _{a of} point A and coordinates xb, yb, point B, for example, with accuracy commensurate with the geometric dimensions of mobile devices. If it is impossible to accurately determine the coordinates, we can restrict ourselves to checking only the first directivity condition. Practice shows that even when checking only the first directivity condition (i.e., based on only the orientation data for _a , θ _α , ψ _α ,) in many cases it is possible to obtain an acceptable reliability of the automatic determination of the desired partner device.

The criteria used to evaluate the directivity may vary depending on the model used to determine the most likely partner device. For example, in the case of a flat geographical area, where

it is assumed that the pair of mobile devices is in a substantially horizontal plane, the degree of directionality of the devices in the pair (i.e., the deviation of the X axis of the mobile device (5) from the straight line passing through points A, B of the coordinate centers of the devices in the pair) is estimated by the yaw angle , and for roll and pitch angles, they fall into the range of acceptable values. In this case, the largest permissible angle of heel can be, for example, ± 30 °, and the permissible pitch angle can be, for example, in the range from + 30 ° to -20 °:

δγ = γ - / (= [-30 ^ο , 30 ^ο ]

δθ = θ + # '- 180 ° e [- 20 °, 30 °]

δψ = ψ + ψ'-Ш ⁰ е [- 10 °, 1 о ° 1

In the case of a non-planar geographical area, a pair of mobile devices may be in a plane different from essentially horizontal, and for to determine the degree of directivity of the devices in a pair, a more complex method can be used, which includes calculating the mutual orientation function of the two devices, while each of the pitch, roll and yaw angles can be assigned a weight coefficient. For example, the yaw angle weight factor may be

1, the roll angle weight coefficient may be 0.3, and the pitch angle weight coefficient may be 0.2:

F (/, θ, ψ) = F (r) + O, 3F (0) + 0.2E (y /),

where F (y, e, y) is a function of relative orientation, and the criterion for evaluating the directivity can have the following form:

F (y, 0, V) <b,

where Δ is the threshold value of the relative orientation function.

In another case, the weight coefficients of the yaw angle, roll angle and pitch angle can be dynamic, i.e. have variable values depending on other factors. For example, the relative orientation function may have variable weights, depending on the distance in a straight line between the devices in a pair:

Ρ (Υ, Θ, Ψ) = f _r l F (y) + f _e (IF (ff) + f, (l) F {),

where / is the distance between points A, B in the Cartesian coordinate system in FIG. 7.

In addition, the weight coefficient of each angle may depend on the values of two other angles:

F { _Y , e, yf) = f _r (0,) F (y) + ί _θ {γ, ψ) Ρ {θ) +

In addition, the weight coefficient of each angle may depend on the velocity vector (i.e., on the magnitude of the speed and direction of movement) of each of the devices in a pair, and the direction of movement of the device in the general case may not coincide with its orientation:

F (y, e _{l V} r) = f _r {6 _a ) f _Y (v _b ) F (Y) + / _c ) + spares, where f _r (o _a ) is the weight coefficient, which is a function of the velocity vector mobile device (5), af _r ( _b ) is the weight coefficient, which is a function of the speed vector of another device in a pair.

As the partner device, the device that has the lowest value of the mutual orientation function can be automatically selected if the difference in the values of this function for this potential partner device and the closest competitor exceeds a predetermined value: where Ρ, {γ, θ, ψ) and Ρ γ, θ, ψ) are the values of the mutual orientation function of two potential partner devices with the smallest values of this function with respect to the mobile device (5), AF is a predetermined value.

In another case, when automatically selecting a device for connection, the affiliation of a potential partner device to a geographic area can be taken into account (i.e., the priority of a geographic area is taken into account), in other words, AF can be a variable and depend on specific potential partner devices:

AF = / (/,,

where /, j are used to identify partner terminals.

If the system (9) cannot automatically determine the partner device with a given reliability, for example, if a large number of potential partner devices with close coordinates, speeds, direction of movement, etc. are concentrated in the nearby geographical area, which can be observed , for example, in a dense traffic stream or in public transport, then

the user is asked to manually select a device for communication from among the most likely partner devices. The result of manual selection can be entered by the system (9) into the database, and subsequently the statistical data obtained during the analysis of such a database can be used in an adaptive way of selecting a partner device under uncertainty.

In FIG. Figure 8 shows an example of a partial structural diagram of a mobile device (5) containing a satellite positioning system receiver, a cellular communication system receiver, a local wireless network receiver, a beacon signal receiver, a magnetometer, an accelerometer, a barometer and a gyroscope, as well as a touch surface with an appropriate controller to determine direction of the control gesture.

The signals of orientation sensors (magnetometer, accelerometer, and gyroscope) are read and processed by the device for processing the signals of orientation sensors, the output signals of which are the angles of roll, pitch and yaw, which are fed to the device for generating orientation data. The output signals of the orientation data generation device are the adjusted roll, pitch, and yaw angles, as well as data for calibrating the orientation sensors, which are supplied to the server communication device (1) for transmission to the server (1) in steps (21), (25) and (27). Signals of geolocation sensors (barometer, satellite positioning system receiver, cellular communication system receiver, local receiver

a wireless network, a beacon receiver) are read and processed by a signal processing device for geolocation sensors, the output signals of which are geographical latitude and geographical longitude, speed and direction of movement, time stamp and altitude. The output signals of the device for generating geolocation data are the specified geographical latitude and geographical longitude, speed and direction of movement, time stamp and the specified height above sea level, which are formed as a result of comparison and refinement of the input signals, and are sent to the communication device with the server (1) for transfers to the server (1) in steps (21), (25) and (27).

The refinement of geolocation data is performed by analyzing and comparing geolocation data received from different sources. In particular, if geolocation data from more than one source of such data is available in a mobile device (5), for example, from a receiver of a satellite positioning system and from a receiver of a ground-based positioning system, then mobile device (5) can compare these geolocation data and choose from them most reliable. The reliability assessment can be performed both on the basis of the geolocation data themselves, for example, on the basis of the number of satellites located in the radio visibility zone of the mobile device (5), the visibility angles of these satellites, the nominal accuracy of determining the angular geographical coordinates, etc., and on the basis of data other systems, for example, based on statistics on the quantity and / or percentage

the ratio of cases of the correct selection of devices in a pair made on the basis of geolocation data from a specific source.

In another case, instead of selecting the most reliable geolocation data from several sets of these data, it is possible to refine the geolocation data by averaging geolocation data received from different sources. Data averaging can be performed using weighting factors, which can be static or dynamic and can be determined as based on the geolocation data themselves, for example, based on the number of satellites in the zone

the radio visibility of the mobile device (5), the visibility angles of these satellites, the nominal accuracy of determining the angular geographical coordinates, etc., and based on data from other systems, for example, based on statistics on the number of and or the percentage of successful cases of connecting devices in pairs made on the basis of geolocation data from a specific source.

In addition, it is possible to refine the geolocation data by amending, based on data received from one source, data from another source. In particular, the altitude value obtained from a receiver of a satellite positioning system or from a receiver of a ground-based system

positioning, can be specified according to the barometer. If the height above sea level cannot be determined from the data received from the receiver of one or another positioning system and only the readings of the barometer of terminal devices are available, then based on the readings of the barometer it is possible to determine the difference in height above sea level of each pair of terminal devices, which can be directly used in determining accessories of terminal devices to a geographical area and / or when calculating the distance between terminal devices.

In FIG. Figure 9 shows an example of a process diagram for interrogating orientation sensors and calculating the specified yaw angle of a mobile device (5) in the case of a flat geographical area when a pair of mobile devices is in a substantially horizontal plane.

At step (1300), the mobile device (5) initializes the numerical array MX of dimension 360 and the variable p, while the values of the elements of the array MX and the variable p are set to 0. The values of the elements of the MX array

correspond to the frequency of their occurrence as a result of calculations of the difference between the yaw angle obtained on the basis of the readings of the magnetometer and the accelerometer and the yaw angle obtained on the basis of the gyro readings described below, and the numbers of these elements correspond to the values of the yaw angle in degrees and

are used further to calculate the adjusted yaw angle of the mobile device (5). The values of the variable p are also used below to calculate the specified yaw angle.

At step (1301), the mobile device (5) reads the readings of the magnetometer, accelerometer and gyroscope:

- readings of the magnetometer along the axes X, Y and Z: magX, magY, magZ;

- accelerometer readings along the axes X, Y and Z: assX, accY, accZ;

- gyro readings: current values of pitch, roll and yaw angles - currentPitch, currentRoll, currentYaw, and current values of the device rotation speed along the X, Y axes and Z - rotationRateX, rotationRateY, rotationRateZ. The calculation of the pitch, roll and yaw angles, as well as the rotation speed of the device, which are calculated in step (1301), is performed using built-in algorithms implemented by the manufacturer of the mobile device (5), for example, by the method described in the patent application

US2011004329. The method of the present invention uses the finished results of such algorithms, therefore, a detailed description thereof is omitted.

In step (1302), the mobile device (5) calculates the yaw angle based on the readings of the accelerometer and magnetometer:

heading = arctg ^ - -j if (xh> 0) and (yh> 0), where

xh = magX cos (pitch) + magZ sin (pitch);

yh = magX sin (roll) sin (pitch) + magY cos (roll) - magZ sin (roll) cos (pitch),

where roll pitc

In step (1303), the mobile device (5) calculates the difference between the value of the yaw angle obtained on the basis of the readings of the magnetometer and the accelerometer and the value of the yaw angle obtained on the basis of the gyro readings:

currentR = mod [(heading + currentYaw - p), 360],

if mod [(heading + currentYaw - p), 360]> 0;

currentR = mod [(heading + currentYaw - p), 360] + 360,

if mod [(heading + currentYaw - p), 360] <0,

where mod [(heading + currentYaw - p), 360] is the operator of calculating the remainder of dividing the value (heading + currentYaw - p) by 360.

In step (1304), the mobile device (5) calculates the difference between the currentR value and the mxi number of the largest element in the MX array:

df = currentR - mxi. W 201

28

In step (1305), the mobile device (5) determines its state. Determination of the state of the mobile device (5) - rest or movement - is based on the readings of the accelerometer assX, accY, accZ and the readings of the gyroscope rotationRateX, rotationRateY, rotationRateZ. Methods for such a determination are well known in the art and are omitted.

In step (1306), the mobile device (5) corrects the values of the elements of the MX array and the variable p depending on the result of determining the state of the mobile device (5) in step (1305).

If the difference is between the value of currentR and the number of the largest element in the MX array

W \ <5

and after stopping the mobile device (5) less than 0.8 s elapsed, the df value

used to correct the value of the variable p, and the value of the largest element in the MX array increases by one:

P = df

MX ^^ MX ^ + l.

If the difference is between the currentR value and the largest element in the MX array

W \> 5

and after stopping the mobile device (5) less than 0.8 s passed, the element with the number currentR in the array increases by one:

MXcurrentR ~ MXcurrentR + 1

0> | | > 17,

after stopping the mobile device (5), from 0.3 s to 1.0, and before that the mobile device (5) was in motion for more than 2.5 s, internal calibration of the magnetometer and / or accelerometer may occur in the mobile device (5) and / or gyroscope with built-in algorithms implemented by the manufacturer of the mobile device (5). In this case, the value of df is used to correct the value of the variable p,

the largest element in the MX array is incremented by one:

p - df

ΜΧ ^ ^ ΜΧ ^, + Ι,

and the motion / stop time counter is reset to zero. W

29th

If it is determined in step (1305) that the mobile device (5) is moving, then in step (1306), the calculated yaw angle difference is fixed in the MX array, i.e.

the element with the number currentR in the MX array is incremented by one:

MXcurrenlR ⁼ MXcurrentR + 1

In this case, the calculated yaw angle difference can be filtered to provide the most reliable data in the array. For example, with sufficient speed of the magnetometer and sufficient computing resources of the mobile device (5), it is possible to filter the values of the difference in yaw angles,

varying with the frequency of alternating current electrical networks and

electrical equipment, preventing them from falling into the array. In particular, for effective filtering of “jitter” of the magnetometer readings with a frequency of 50/60 Hz, the frequency

the readings of the magnetometer should exceed 100/120 Hz, and preferably should exceed 200/240 Hz. In addition, based on probabilistic analysis, it is possible to filter out random values of the yaw angle difference, for example, caused by lightning discharges, etc.

After stopping the mobile device (5), the yaw angle difference is calculated based on data read from orientation sensors for a predetermined time. In the above embodiment, this time,

used to fill the MX array is 0.8 s, and the time used to track possible adjustments to sensor readings by internal algorithms is 1 s. In other embodiments, this time may depend on the frequency of reading the magnetometer, accelerometer, and gyroscope, and

be determined or experimentally selected in such a way as to provide the most reliable data in the MX array. Thus, the conditions described above are the preferred option for one type of mobile device (5) and may differ depending on the implementation of the functions of the magnetometer,

accelerometer and gyroscope in a specific mobile device (5). For example, they can be automatically assigned when installed on a mobile device (5)

software implementing the method of the present invention, depending on the model of the mobile device (5), which is determined by the specified software.

In step (1307), the mobile device (5) calculates the updated yaw angle based on the current yaw angle determined based on the gyro readings, and W 201

thirty

the current value of the variable p and the number mxi of the largest value in the MX array, used as correction values:

FusionYaw = mod [(-currentYaw + mxi + p), 360] if mod [(-currentYaw + mxi + p), 360]> 0;

FusionYaw = mod [(-currentYaw + mxi + p), 360] + 360,

if mod [(-currentYaw + mxi + p), 360] <0.

Next, return to step (1301).

In the described example, the yaw angle obtained on the basis of readings

magnetometer, the least reliable, since the magnetometer is exposed to external magnetic fields induced by permanent magnets and electric current, and distortions of the Earth’s magnetic field caused by the proximity of ferromagnetic or diamagnetic materials, however, the statistical processing of data from orientation sensors using this angle improves accuracy determining the actual yaw angle of the mobile device (5).

In addition, when calculating the adjusted yaw angle, the difference between the direction to the geographic north and magnetic north can be taken into account, which is determined on the basis of geolocation data using predefined correction tables, if such correction is not applied in the built-in algorithms implemented by the manufacturer of the mobile device (5).

In the example described above, the dimension of the numerical array MX is taken to be 360, which provides a resolution of 1 °. In other cases, the dimension of the numerical array MX may be less than 360 or greater than 360. For example, the dimension of the numerical array MX, equal to 180, provides the resolution

capacity equal to 2 °, and the dimension of the numerical array MX, equal to 720, provides a resolution of 0.5 °.

In the example described above, the dimension of the numerical array Y is taken equal to 1, which ensures the refinement of one parameter - the yaw angle. In other cases, the dimension of the numerical array MX may be different. For example, to clarify three parameters — pitch, roll, and yaw angles — the numerical array Y can be three-dimensional. Accordingly, the number of variables used to calculate the three specified parameters will also be three.

The proposed method for specifying the yaw angle based on the use of analytical and statistical data allows to obtain an acceptable reliability of the result with sufficient speed. In most cases, the calculation the specified yaw angle takes a time of the order of one second, which is commensurate with the time of the motor reaction of the user when positioning the mobile device (5) to establish communication with a potential partner device.

In the case of a non-planar geographical area, a combination of analytical and

The statistical approach for correcting orientation data can also be used to calculate the adjusted roll or pitch angle in those positions of the mobile device (5), when the roll or pitch angle obtained on the basis of the gyroscope and accelerometer readings can be refined based on the readings of the magnetometer and accelerometer essentially similar to the described method of refining the yaw angle. In general, these orientations may include updated roll, pitch, and yaw angles, as shown in FIG. 8.

Additionally, the method in accordance with the present invention

provides for the correction of orientation data and / or calibration of orientation sensors using gesture control. In particular, in one embodiment of the invention, when determining a partner device for exchanging data, the sliding movement of the user's finger on the surface of the touch screen is used to determine the direction to the potential partner device, which is transmitted to the server (1) and used by the server (1) to select the device partner along with the orientation data described above. This allows you to choose a partner device, even in cases where you can accurately orient the mobile device (5) to

a potential partner device is not possible and / or when several potential partner devices having similar values of orientation data are located close to each other, for example, in a row in front of a mobile device (5).

For example, in the case of a horizontal arrangement of the mobile device (5), the sliding movement (G) of the user's finger on the surface of the touch screen in the direction (P) to the potential partner device, as shown in FIG. 10 is detected by means of a touch screen, the direction (P) is calculated by the standard firmware of the mobile device (5) and then used to determine the angle (ψ _ε ) between the direction (P) of the potential partner device and the direction (Ν) of the geographical or magnetic north, which characterizes the actual direction to the potential partner device in the horizontal plane, which is used to select the partner device directly or is compared with the yaw or nennym yaw angle (ψ) obtained by the method described above and the result of this comparison is used to select a partner device. In another case, the angle Δψ directly determined in the mobile device (5) can be used to correct orientation data.

The accuracy of determining the orientation data can be further improved by calibrating the orientation sensors (if this mode is supported by the firmware of the mobile device (5)) or by making corrections directly to the orientation data processed by the server (1). Corrections can be made by the mobile device (5) before sending the orientation data to the server (1) or transmitted to the server (1) and then made by the server (1). In the calibration mode, mobile devices are placed in a predetermined position, for example, they are laid on a flat horizontal surface close to each other and towards each other, and both mobile devices are transferred by users to calibration mode. Enabling calibration mode indicates to the server (1) that

calibrated devices are oriented exactly to each other and the server (1) identifies errors in the orientation data and takes into account the identified errors in further calculations when choosing a partner device.

In another embodiment of the invention, the calibration of orientation sensors can be carried out using the orientation of the mobile device (5) and / or a gesture indicating the direction to the object with known in advance exact

coordinates, for example, to a stationary device (4).

The claimed method is extremely easy to use from the point of view of the user. The user of the mobile device (5) after registering with the server (1), if there is a connection with the server (1), receives a notification that the system (9) is ready for operation. To exchange data with another mobile device registered on the server (1) and connected to the server (1), it is enough for him to point the mobile device (5) to another partner device and, after automatically establishing communication with him, give a command to transfer and / or receiving data. The command to transmit and / or receive data in the mobile device (5) is preferably implemented by gesture control, for example, in a mobile device (5) equipped with a touch screen, such a command can be issued by a sliding movement of the user's finger on the surface of the touch screen, while moving a finger in the direction of another mobile device means a command to transmit data, and moving a finger in the direction from another mobile device means a command to receive data. AT In cases where the system (9) is not able to reliably determine the partner device, the user of the mobile device (5) is invited to manually select the partner device from the list of available potential partner devices. Manual selection by a user of a partner device can also be performed by gesture control, for example, by touching the image of the partner device on the touch screen of a mobile device (5). In mobile devices equipped with gesture recognition systems in three-dimensional space, such gesture commands can be successfully used to control system (9). The partner device may be a mobile device similar to a mobile device (5), or

stationary device (4).

The claimed method is a simple and convenient way to exchange data between users of mobile devices, for example, the transmission and reception of photo images. In addition, this method is a simple and convenient way to exchange data between a user of a mobile device and a user of a stationary device, as well as between a user of a mobile device and an automatic information system, for example, an on-demand advertising system, an automatic help system, an electronic guide, etc. ., in which, in order to obtain the information of interest, one should orient the mobile device in the direction indicated on the corresponding pointer and confirm its desire by teach the information.

Using the binding to a geographical area in the claimed method allows implementing some additional exchange modes, for example, a broadcast request for help, which a user of a mobile device can make (5), and which can be accepted by all potential partner devices located in this geographical area or in adjacent geographical areas, if their users are allowed to receive such requests. This mode allows you to speed up assistance, for example, in the mountains, in the forest, on the water, etc. In addition, a broadcast warning about the danger, for example, about the danger of avalanches, about man-made disasters, about road accidents, about committed offenses, etc. can be implemented in a similar way.

The claimed method also allows you to implement other services, for example, notification of the appearance of a nearby mobile device of one or another a user of the system (9), for example, having the status of a “friend”, or about the availability of certain goods or services, for example, a gas station, bank or cafe.

The main technical result of the present invention is the implementation of an easier to use method of wireless data transfer between terminal devices with more reliable (reliable) automatic

the definition of a pair of devices involved in data transfer, based on the relative position of these devices, compared with the existing level of technology.

An additional technical result of the present invention is to increase the speed of the method by optimizing the information exchange of the terminal device with the server.

An additional technical result of the present invention is the implementation of additional types of services for users of mobile devices based on the proposed method of wireless data transmission.

Devices, means, elements, methods and features of the present invention can be combined in various embodiments of the invention, if they do not contradict each other. The embodiments described above are for illustrative purposes only and are not intended to

limiting the scope of the present invention defined by the claims. All reasonable modifications, upgrades and equivalent replacements in the design, composition and principle of operation, performed within the essence of the present invention, are included in the scope of the present invention.

The method and its parts (steps) in accordance with the present invention can be implemented by software, or by hardware, or by a combination of software and hardware. In addition to explicitly indicated in the description, the hardware may contain one or more of the following devices: a programmable computing device (processor), a programmable logic device, a specialized integrated circuit, a storage device, an interface chip, a graphic display, an acoustic emitter, a visual indicator, a vibration indicator, a keyboard, a touch surface, an optical sensor, a power source and other devices necessary and sufficient for implementing the method and akternye for mobile and stationary endpoint devices.

Claims

CLAIM

1. A method for wireless data transfer between terminal devices, comprising the following steps:

(al) establish a connection of terminal devices with the server;

(a3) determine the orientation data of the terminal devices;

(ab) determining a first terminal device initiating communication with a potential partner device based on the orientation data of the terminal devices;

(a7) transmitting orientation data of the first terminal device to the server;

(a9) establish a connection between the first terminal device and the second terminal device;

(aj) transmitting data between the first terminal device and the second terminal device;

2. The method according to p. 1, characterized in that at step (a4), brief information about potential partner devices is additionally stored in the first terminal device to expedite the receipt from the server of extended information about

potential partner devices for the first terminal device.

3. The method according to p. 2, characterized in that it further caches in the server extended information about potential partner devices for the first terminal device.

4. The method according to p. 1, characterized in that at step (ab) additionally check whether the first terminal device is connected to the second terminal device.

5. The method according to p. 4, characterized in that if it is established that the first terminal device is not connected to the second terminal device, check whether the first terminal device is in a state of motion or at rest.

6. The method according to p. 5, characterized in that if it is established that the first terminal device is in a state of motion, check whether the previous state of the first terminal device is a state of motion or a state of rest.

7. The method according to p. 6, characterized in that if it is established that the previous state of the first terminal device is a state of rest, go to step (a8).

8. The method according to p. 6, characterized in that if it is established that the previous state of the first terminal device is a state of motion, go to step (a2).

9. The method according to p. 5, characterized in that if it is established that the first terminal device is at rest, check for a request from the server to connect to the second terminal device.

10. The method according to p. 9, characterized in that if a request is found from the server to connect to the second terminal device, proceed to step (a9).

11. The method according to p. 9, characterized in that if there is no request from the server to connect to the second terminal device, check whether the previous state of the first terminal device is a motion state or a rest state.

12. The method according to p. 11, characterized in that if it is established that the previous state of the first terminal device is a state of motion, go to step (a7).

13. The method according to p. 11, characterized in that if it is established that the previous state of the first terminal device is at rest, go to step (a2).

14. The method according to p. 4, characterized in that if it is established that the first terminal device is connected to the second terminal device, check for a request from the server to disconnect from the second terminal device.

15. The method according to p. 14, characterized in that if a request is found from the server to disconnect from the second terminal device, proceed to step (al 1).

16. The method according to p. 14, characterized in that if there is no request from the server to disconnect from the second terminal device, the transition to step (aU) is performed.

17. The method according to p. 5, characterized in that the rest state and the state of movement are determined, respectively, as the rest state and the state of movement of the first terminal device relative to potential partner devices.

18. The method according to p. 1, characterized in that at step (a4) additionally

determining the geographical area to which each potential partner device belongs, and determining the second terminal device in step (a8) is performed taking into account the priority of the geographical area.

19. The method according to p. 18, characterized in that the geographical area and the priority of the geographical area is determined based on the distance between the terminal

devices.

20. The method according to p. 1, characterized in that the data transmission between the first terminal device and the second terminal device in step (a 10) is carried out directly between the first terminal device and the second terminal device through the connection established in step (a9).

21. The method according to p. 1, characterized in that the data transmission between the first terminal device and the second terminal device in step (a 10) is partially carried out directly between the first terminal device and the second terminal device through the connection established in step (a9), and partially through the connection of the first and second terminal devices to the server, established in step (al).

22. The method according to p. 1, characterized in that the data transmission between the first terminal device and the second terminal device in step (aY) is carried out through the connection of the first and second terminal devices with the server installed in step (al).

23. The method according to p. 21, characterized in that the data transfer started between the first terminal device and the second terminal device in step (aU) through the connection of the first and second terminal devices to the server continues after step (al 1).

24. The method according to p. 22, characterized in that the data transfer started between the first terminal device and the second terminal device in step (a 10) through the connection of the first and second terminal devices to the server continues after step (al 1).

25. The method according to p. 1, characterized in that the data transfer started between the first terminal device and the second terminal device in step (a 10) is continued even if the other steps of the method are stopped.

26. The method according to p. 1, characterized in that the orientation data of the first

of the terminal device and potential partner devices at step (a8) are the pitch, roll and yaw angles and the rotation speed of each terminal device around three axes forming an orthogonal coordinate system.

27. The method according to p. 26, characterized in that the orientation data of the first terminal device and potential partner devices in step (a8)

additionally contain refined values of at least one of the pitch, roll and yaw angles of at least one of the terminal devices.

28. The method according to p. 27, characterized in that the specification of the value of at least one of the angles of pitch, roll and yaw contains the following steps:

(S) initialize a numeric array and a variable;

(B2) read the readings of the magnetometer, accelerometer and gyroscope;

(B8) if it was determined in step (b6) that the first terminal device is at rest, the time elapsed after the first terminal device has stopped and the time during which the first terminal device has been in motion before it is stopped, and verify that the first, second, and third predetermined conditions with respect to at least one of the following values: the time elapsed after the first terminal device has stopped, the time during which the first terminal device was in a state of motion before it stopped, and the calculation result in step (b5);

(B10) if the second predetermined condition is fulfilled, the value of the element of a numerical array with a number equal to the calculation result in step (b4) is increased by one;

(bl 1) if the third predefined condition is met, the value of the variable is taken equal to the result of the calculation in step (b5), the value of the largest element of the number array is increased by one, and the time elapsed after the first terminal device is stopped, and the time during which the first the terminal device was in a state of motion until it stopped, zeroed;

(B3) return to step (b2).

29. The method according to p. 28, characterized in that at step (b4) calculate the difference between the value of at least one of the angles of pitch, roll and yaw calculated on the basis of the readings of the magnetometer and accelerometer, and the value of the same angle calculated based on gyro readings.

30. The method according to p. 28, characterized in that at step (b4) calculate the difference between the value of at least one of the pitch, roll and yaw angles calculated on the basis of the magnetometer and the value of the same angle,

calculated on the basis of the gyroscope and accelerometer readings.

31. The method according to p. 27, characterized in that the specification of the value of at least one of the angles of pitch, roll and yaw further comprises the following steps:

32. The method according to p. 27, characterized in that to clarify the values of at least one of the angles of pitch, roll and yaw, calibrate orientation sensors, comprising the following steps:

(d2) enable calibration mode in both end devices;

(d4) calculating and writing to the database in the server the errors of at least one of the pitch, roll and yaw angles of at least one of these terminal devices;

(d5) specify the values of at least one of the pitch, roll and yaw angles of at least one of these terminal devices, based on

the errors calculated in step (d4).

33. The method according to p. 27, characterized in that to clarify the values of at least one of the angles of pitch, roll and yaw, calibrate the orientation sensors, comprising the following steps:

(e2) include a calibration mode in the first terminal device;

34. The method according to p. 1, characterized in that the determination of the second terminal device in step (a8) is performed manually by the user of the first terminal device, if the method does not automatically detect the second terminal device with the required reliability.

35. The method according to p. 34, characterized in that the determination of the second terminal device is performed based on the extended information about potential partner devices that is received from the server.

36. The method according to p. 34, characterized in that the result of manual determination is entered into the database in the server, subjected to statistical processing and the result of statistical processing is subsequently used in step (a8) to increase the reliability of determining the second terminal device.

37. The method according to any one of the preceding paragraphs, characterized in that based on the data of the geolocation of the terminal devices, a multicast data transmission mode is implemented from the first terminal device to other terminal devices with respect to which a predetermined condition is satisfied.

38. System for wireless data transmission between terminal

devices comprising a remote server, a transport network, and at least two terminal devices, configured to implement the method described in any of the preceding paragraphs.