KR20220071854A - Method, apparatus and smart device for sharing file - Google Patents

Abstract

A method for sharing a file according to embodiments of the present disclosure includes the operations of determining angles for candidate smart devices, respectively, based on an ultra-wideband (UWB) positioning scheme; determining a target smart device from the candidate smart devices based on the angles; and sharing a file to the target smart device.

Description

How to share files, devices and smart devices {METHOD, APPARATUS AND SMART DEVICE FOR SHARING FILE}

The present disclosure relates to the technical field of a smart device, in particular, a method, an apparatus, and a smart device for file sharing.

AirDrop's ability to share files wirelessly between multiple devices. One-to-one file transfers (similar to wireless network transfers) can be accomplished using the AirDrop feature by simply dragging files to a friend's head portrait.

In the conventional AirDrop, based on the spatial recognition capability provided by the U1 chip, the file providing device is connected to another person's file receiving device, and the priority is given according to the distance (the closer the file receiving device is, the higher the priority is) ), the file is also shared to the file receiving device with the highest priority.

However, in this implementation, the file providing device must consciously get close to the file receiving device, which is complicated.

The present disclosure provides a file sharing method, apparatus, and smart device capable of reducing work complexity.

Technical solutions of the embodiments of the present disclosure provide a file sharing method, wherein the file sharing method determines angles for each of the candidate smart devices based on an Ultra Wide Band (UWB) positioning method and determining a target smart device from the candidate smart devices based on the angles, and sharing the file with the target smart device.

In an embodiment, the method further comprises determining distances to each of the candidate smart devices based on the UWB positioning scheme, wherein the target smart devices from the candidate smart devices based on the angles The determining of the device further includes determining the target smart device from the candidate smart devices based on the angles and the distances.

In one embodiment, in the method, in the operation of determining the target smart device from the candidate smart devices based on the angles and the distances, the candidate smart device having the first minimum angle based on the angle ranking result determining a device and a candidate smart device with a second minimum angle, wherein an angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is a predetermined angle threshold If greater than, the candidate smart device with the smallest angle among the candidate smart device with the first minimum angle and the candidate smart device with the second minimum angle is determined as the target smart device, and the candidate smart device with the second minimum angle If the angular difference between the device and the candidate smart device with the first minimum angle is less than or equal to the predetermined angle threshold, if the distance from the candidate smart device with the first minimum angle has the second minimum angle If it is less than or equal to the distance to the candidate smart device, the candidate smart device having the first minimum angle is determined as the target smart device, and if the distance to the candidate smart device having the first minimum angle is the second If the distance to the candidate smart device with the minimum angle is greater than the distance to the candidate smart device with the minimum angle, the candidate smart device with the second minimum angle is determined as the target smart device.

In an embodiment, the method includes, in the operation of sharing the file with the target smart device, the operation of determining a affinity index of the target smart device, and a privacy index of the file and determining a sharing method based on the affinity index and the privacy index.

In one embodiment, in the method, in the operation of determining the affinity index of the target smart device, if it is determined that there is a connection history with the target smart device, the affinity index of the target smart device is lower than the basic level When it is determined that the operation of determining a high first level, there is a connection history with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, the affinity index of the target smart device is and determining a second level higher than the first level.

In an embodiment, the method includes, in the determining of the privacy index of the file, determining that the privacy index of the file is a basic level if it is determined that the file is obtained from a public resource; determining that the privacy index of the file is a first level higher than a basic level when it is determined that the file is obtained from a private resource and that the file does not contain a personal location; and determining that the privacy index of the file is a second level higher than the first level, if it is obtained from a resource and it is determined that the personal place is included in the file.

In an embodiment, in the method, in the operation of determining the sharing method based on the affinity index and the privacy index, when the affinity index is greater than a predetermined high affinity threshold, the file is directly connected ( sharing to the target smart device in a direct connection manner, and when the affinity index is lower than a predetermined low affinity threshold and the privacy index is a basic level, sharing the file to the target smart device in the direct connection manner when the affinity index is lower than the predetermined low affinity threshold value and the privacy index is the first level or the second level, transferring the file to the target smart device in a prompt connection manner and when the affinity index is between the predetermined low affinity threshold value and the predetermined high affinity threshold value, and the privacy index is the basic level or the first level, the file is connected to the direct connection method. and sharing with the target smart device, and if the privacy index is the second level, sharing the file with the target smart device through the prompt connection method.

The device for sharing a file according to an embodiment of the present disclosure includes an angle determination module configured to determine angles for each of the candidate smart devices based on an ultra-wideband (UWB) positioning method, based on the angles, the candidate smart devices a target smart device determining module, configured to determine a target smart device from the devices, and a sharing module, configured to share the file to the target smart device.

In an embodiment, the device includes a distance determining module configured to determine distances to each of the candidate smart devices based on the UWB positioning scheme, wherein the target smart device determining module is configured to determine the angles and the and determine the target smart device from the candidate smart devices based on the distances.

In an embodiment, the target smart device determining module of the device is configured to determine a candidate smart device with a first minimum angle and a candidate smart device with a second minimum angle based on the angular ranking result, and the second minimum angle If the angle difference between the candidate smart device with the angle and the candidate smart device with the first minimum angle is greater than a predetermined angle threshold, the candidate smart device with the first minimum angle and the candidate smart device with the second minimum angle A candidate smart device having a minimum angle among devices is determined as the target smart device, and the angular difference between the candidate smart device having the second minimum angle and the candidate smart device having the first minimum angle is greater than the predetermined angle threshold. If less than or equal to, if the distance to the candidate smart device with the first minimum angle is less than or equal to the distance to the candidate smart device with the second minimum angle, the candidate smart device with the first minimum angle is selected as the If it is determined as a target smart device, and the distance to the candidate smart device having the first minimum angle is greater than the distance to the candidate smart device having the second minimum angle, the angle of the second minimum angle A candidate smart device is determined as the target smart device.

In an embodiment, the sharing module of the device is configured to determine an affinity index of the target smart device, determine a privacy index of the file, and determine a sharing method based on the affinity index and the privacy index.

In an embodiment, the sharing module of the device, when it is determined that there is a connection history with the target smart device, determines the affinity index of the target smart device as a first level higher than a basic level, and the target smart device If there is a connection history with the device and it is determined that the target smart device and the target smart device are in the same hotspot or the same Wi-Fi network, the affinity index of the target smart device is determined to be a second level higher than the first level is configured to

In one embodiment, the sharing module of the device is, when it is determined that the file is from a public resource, determines the privacy index of the file as the basic level, that the file is from a private resource, and the file is from a private resource. If it is determined that the personal place is not included, determining the privacy index of the file as the first level higher than the basic level, the file is from the personal resource and the file contains the personal place and determine the privacy index of the file as the second level higher than the first level.

In an embodiment, the sharing module of the device shares the file with the target smart device in a direct connection manner when the affinity index is greater than a predetermined high affinity threshold, and the affinity index is a predetermined low affinity If it is lower than the threshold and the privacy index is the basic level, the file is shared with the target smart device in the direct connection manner, and the affinity index is between the predetermined low affinity threshold and the predetermined high affinity threshold. If there is, if the privacy index is the basic level or the first level, the file is shared with the target smart device in a direct connection method, and if the privacy index is the second level, the file is transmitted in a prompt connection method and to share to the target smart device.

A smart device according to an embodiment of the present disclosure includes a processor and a memory, wherein the memory stores an application executable by the processor in order for the processor to perform the above-described file sharing method.

The computer-readable storage medium stores computer-readable instructions for executing the above-described file sharing method.

In summary, in the embodiments of the present disclosure, the angle for each of the candidate smart devices is determined based on the ultra-wideband positioning scheme; a target smart device is determined from the candidate smart devices based on the angles; The file is shared to the target smart device. Accordingly, according to embodiments of the present disclosure, the target smart device can be determined based on the angles, there is no need to intentionally bring the file providing device close to the file receiving device, and the complexity of the corresponding operation is reduced.

Moreover, according to embodiments of the present disclosure, the target smart device can be determined by comprehensively considering the angle and the distance, and the accuracy of the determined target smart device is improved.

Further, according to embodiments of the present disclosure, a sharing method is also determined based on the affinity index and the privacy index, and a desirable compromise between convenience and privacy protection is achieved.

1 is a flowchart of a method for sharing a file according to embodiments of the present disclosure.
2 is a schematic diagram of a discovery step and a ranging step in an ultra-wideband (UWB) positioning process according to embodiments of the present disclosure.
3 is a schematic diagram of a coordinate system of a UWB chip having three antennas according to embodiments of the present disclosure.
4 is a schematic diagram of determining a distance between an antenna of a UWB chip and a target device according to embodiments of the present disclosure.
5 is a schematic diagram of determining an angle between a UWB chip and a target device according to embodiments of the present disclosure;
6 is a schematic diagram of determining a target smart device from candidate smart devices according to embodiments of the present disclosure.
7 is a flowchart of determining a sharing method according to embodiments of the present disclosure.
8 is a first exemplary diagram of file sharing according to embodiments of the present disclosure.
9 is a second exemplary diagram of file sharing according to embodiments of the present disclosure.
10 is a third exemplary diagram of file sharing according to embodiments of the present disclosure.
11 is a structural diagram of a file sharing device according to embodiments of the present disclosure.
12 is a structural diagram of a smart device according to embodiments of the present disclosure.

In order to make the object, technical solution and advantage of the present application more clear, the present disclosure will be described in more detail below by way of exemplary embodiments with reference to the accompanying drawings.

For simplicity and intuition of the description, the solution of the present disclosure will be described by describing some representative embodiments. Many details of the embodiments are used only to help understand the solutions of the present disclosure. However, it is clear that the technical solution of the present disclosure may not be limited to these details during implementation. In order to avoid unnecessarily obscuring the solution of the present disclosure, some embodiments are not described in detail and only a framework thereof is provided. Hereinafter, "comprising" indicates the meaning of "including but not limited to", and "according to" has the meaning "at least according to, but not limited to". Hereinafter, when the quantity of a component is not specifically indicated due to the linguistic custom of each country, it means that the corresponding component may be one, a plurality, or at least one.

In the implementation of the present disclosure, ultra-wideband positioning (UWB positioning) technology is used to implement a technology method of sharing files based on the angle of the smart device. By utilizing the angle and other characteristics to automatically connect the target device through a predetermined decision algorithm, a one-stop sharing method can be achieved.

First, a description of the UWB positioning technique is provided.

UWB positioning technology is one positioning technology using wireless carrier communication. Since it does not use a sinusoidal carrier and transmits data using a nano-second non-sinusoidal narrow pulse, it occupies a wide spectrum. UWB positioning technology has the advantages of low system complexity, low transmit signal power spectral density, insensitivity to channel fading, low eavesdropping ability, high positioning accuracy, etc., and is particularly suitable for high-speed wireless access in high-density multi-path places such as indoors do. In the UWB positioning technology, time information and angle information of the positioning target can be accurately obtained, and by converting the time information into distance information, angle information and geometric positioning methods such as triangulation are combined to obtain position information of the positioning target can do. A method of measuring angle information and time information commonly used in UWB positioning technology is based on Angle Of Arrival (AOA) or Time Difference Of Arrival (TDOA), Received Signal Strength: RSS)-based measurement methods.

Although a specific method of determining an angle for a positioning object based on the UWB positioning technology has been exemplified above, those skilled in the art will understand that such a description is merely illustrative and not intended to limit the protection scope of the embodiments of the present disclosure. will understand

1 is a flowchart of a method for sharing a file according to an embodiment of the present disclosure. The method shown in FIG. 1 may be performed by a device (eg, referred to as a source device) that needs to share the file with another device.

As shown in Figure 1, the method comprises:

- Step 101: determining angles for each of the candidate smart devices based on the ultra-wideband positioning scheme;

- Step 102: determining a target smart device from the candidate smart devices based on the angles; and

- Step 103: sharing the file with the target smart device.

Here, the candidate smart devices may include a UWB chip or a UWB tag. The target smart device is a smart device that is determined from candidate smart devices and should be shared with the file.

Shared files can be of various types of file types, such as multimedia files. More specifically, the file may be an image file, a video file, or an audio file. Alternatively, the source device transmits the file to the target smart device based on a communication means such as infrared, short-range wireless communication, Bluetooth, ZigBee, wireless broadband, 3rd generation mobile communication, 4th generation mobile communication, or 5th generation mobile communication. can provide

Preferably, prior to step 101, the user triggers the process of FIG. 1 by shaking the source device. In order to prevent a malfunction, the acceleration of the shaking motion may be obtained using an accelerometer of the source device, and the angular velocity of the shaking motion may be obtained using a gyroscope of the source device, and the acceleration and if the angular velocity is greater than or equal to each predetermined threshold, it is determined that the user is ready to share the file and execution of the flow shown in FIG. 1 begins. When at least one of the acceleration and the angular velocity is less than the respective predetermined threshold value, the shaking operation is regarded as a malfunction, and the flow shown in Fig. 1 is not executed.

Preferably, the source device may select a connection method according to the content to be shared. For example, the Digital Living Network Alliance (DLNA) method can be used to establish a connection when you want to transmit public video, and the Bluetooth method can be used to establish a connection when you want to share audio to a speaker box. can be used to

In one embodiment, the method comprises:

determining distances to each of the candidate smart devices according to the UWB positioning scheme;

In step 102, the operation of determining the target smart device from the candidate smart devices based on the angles further includes the operation of determining the target smart device from the candidate smart devices based on the angles and the distances. include

In an embodiment, the determining of the target smart device from the candidate smart devices based on the angles and the distances includes:

determining, based on the angle ranking result, a candidate smart device having a first minimum angle and a candidate smart device having a second minimum angle;

Here, if the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is greater than a predetermined angle threshold, the candidate smart device with the first minimum angle and the second a candidate smart device having a minimum angle among candidate smart devices having a minimum angle is determined as a target smart device;

If the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is less than or equal to the predetermined angle threshold, if the candidate smart device with the first minimum angle If the distance is less than or equal to the distance to the candidate smart device with the second minimum angle, the candidate smart device with the first minimum angle is determined as the target smart device, and if the candidate smart device with the first minimum angle If the distance to the smart device is greater than the distance to the candidate smart device having the second minimum angle, the candidate smart device having the second minimum angle is determined as the target smart device.

Accordingly, it is possible to more accurately determine the target smart device based on the two-dimensional determination and determination of the angle and the distance.

The angle and distance calculation based on the UWB technology is described below.

2 is a schematic diagram of a discovery step and a ranging step in an ultra-wideband (UWB) positioning process according to embodiments of the present disclosure. As can be seen from FIG. 2 , in the discovery phase, the UWB mechanism discovers devices using a Blink message, and in the ranging phase, the UWB mechanism conducts three data exchange processes (Poll, Response, respectively). Implement positioning based on (referred to as Response and Final).

3 is a schematic diagram of a coordinate system of a UWB chip having three antennas according to embodiments of the present disclosure. 4 is a schematic diagram of determining a distance between an antenna of a UWB chip and a target device according to embodiments of the present disclosure. 5 is a schematic diagram of determining an angle between a UWB chip and a target device according to embodiments of the present disclosure;

In FIG. 3 , a UWB chip including three antennas will be described as an example. The three antennas are located at P1, P2 and P3 respectively. By connecting the three antennas of the UWB chip, it is possible to determine the outer center O of the triangle, that is, the origin of the coordinates. where OP1 = OP2 = OP3. Here, the coordinates of the point P ₁ are (x1,y1,O), the coordinates of P2 are (x2,y2,O), and the coordinates of the point P3 are (x3,y3,O).

As shown in FIG. 4 , the distance from each UWB chip antenna to the target device may be determined, where time T1 is a time at which the source device (ie, UWB chip antenna) transmits a data packet, and time T2 is The time at which the target device receives the data packet, time T3 is the time at which the target device transmits the response data packet, and the time T4 is the time at which the source device receives the response data packet. Accordingly, the distance D from the source device to the target device (where C is the wave velocity) may be obtained through Equation 1 .

<Equation 1>

Here, the target device is abstracted to a point P, and therefore it is necessary to calculate the coordinates (x, y, z) of the point P.

The distances dl, d2, and d3 of the three antennas to the target device are obtained through Equation 2 below in the above-described manner to calculate the distance D from the source device to the target device.

<Equation 2>

Here, if there are more than three antenna points, an optimal solution of a point O having the same distance as each point may be obtained, and the obtained point O may be used as the origin of coordinates.

및

이 계산되고, 여기서 Y 축의 벡터 좌표는(0,1,0)이고, 점 O의 좌표는(0, 0, 0)이며, 하기 수학식 3을 통해 얻을 수 있다. Next, the included angles

and

is calculated, where the vector coordinate of the Y-axis is (0, 1, 0), and the coordinate of the point O is (0, 0, 0), which can be obtained through Equation 3 below.

<Equation 3>

Here, θ is the angle between the UWB chip and the target device.

The foregoing exemplifies a typical example of an angle and distance calculation procedure based on the UWB technology. Those skilled in the art will appreciate that this description is merely illustrative and not used to limit the protection scope of the embodiments of the present disclosure.

In one embodiment, the sharing of the file to the target smart device in step 103 of FIG. 1 includes determining an affinity index of the target smart device, determining a privacy index of the file, and determining the affinity index and the and determining a sharing method based on the privacy index.

Preferably, the determining of the intimacy index of the target smart device includes determining the intimacy index of the target smart device as a first level higher than a basic level when it is determined that there is a connection history with the target smart device movement; If there is a connection history with the target smart device and it is determined that it is in the same hotspot or the same WI-FI network as the target smart device, the intimacy index of the target smart device is set to a second level higher than the first level It further includes an operation of determining that it is

Preferably, the determining of the privacy index of the file comprises: if it is determined that the file is from a public resource, determining the privacy index of the file as the basic level; determining that the privacy index of the file is higher than the basic level when it is determined that the file is from a personal resource and that the file does not include a personal location; and determining that the privacy index of the file is the second level higher than the first level when it is determined that the file is from a personal resource and the file includes a personal place.

Preferably, the operation of determining a sharing method based on the affinity index and the privacy index includes:

when the affinity index is greater than a predetermined high affinity threshold, sharing the file to the target smart device in a direct connection manner;

sharing the file to the target smart device in the direct connection manner when the affinity index is lower than a predetermined low affinity threshold and the privacy index is the basic level;

When the affinity index is lower than the predetermined low affinity threshold and the privacy index is the first level or the second level, sharing the file to the target smart device in a prompt connection manner ; and

When the affinity index is between the predetermined low affinity threshold value and the predetermined high affinity threshold value, if the privacy index is at the basic level or the first level, the file is connected to the target smart device in the direct connection manner. and, if the privacy index is in the second level, sharing the file to the target smart device in the prompt connection manner.

In an embodiment of the present disclosure, a decision tree that uses four specific data (angle, distance, affinity index, and privacy index) to determine which nearby smart device to share a file with and how to share it with the corresponding smart device It will be understood that it is possible to form

The angle and distance calculations are described in detail above, and the intimacy index and privacy index are described below.

The affinity index reflects the intimacy between a device with which the file should be shared (referred to as a 'source device') and a device shared with the file (referred to as a 'target device'). The default (default) value of the affinity index is 0. A list of devices can be fetched from the source device for comparison with the Mac address of the device to be connected. If the target device has previously been connected to the source device, the intimacy index between the source device and the target device is 1. Also, if the source device and the target device are in the same hotspot or WI-FI network, the affinity index increases by 1.

The privacy index reflects the privacy of a shared file to be shared. A method of determining the privacy index is as follows:

(1) complete personal information (payment information, notifications, etc.) will not be shared;

(2) For files of public resources such as videos, photos, or articles on the web, the privacy index of the file may be set to a basic level such as 0;

(3) When a file of a non-public resource (eg, a video, photo, etc. taken by a user) includes a public place (eg, in which public area the filmed place is), the privacy index of the file is higher than a basic level such as 1 may be determined to be at a higher first level; and

(4) If a personal location is included in a file of a personal resource (eg, a video shot by a user, a photo, etc.) It may be determined to be at a second level that is higher than the level.

Although typical examples of setting the affinity index and the privacy index are exemplified above, those skilled in the art will understand that these descriptions are merely exemplary and are not intended to limit the protection scope of the implementation of the present disclosure.

6 is a schematic diagram of determining a target smart device from candidate smart devices according to embodiments of the present disclosure.

In FIG. 6 , a specific algorithm for forming a decision tree using the angle, distance, intimacy index, and privacy index is as follows.

를 결정한다.First, the source device scans n devices in its vicinity, and the source device determines the angle with these n devices.

to decide

이고, 상기 소스 장치와 상기 장치 m 사이의 각도는

이며, 또한 1≤ k ≤n, 1≤ m ≤n 이다. 동시에, 상기 소스 장치와 상기 장치 k 사이의 거리 d_k 및 상기 소스 장치와 상기 장치 m 사이의 거리 d_m가 계산된다. 상기 장치 k의 친밀도 지수 f_k가 획득되고, 상기 장치 m의 친밀도 지수 f_m가 획득된다. 상기 장치 k에 공유된 파일의 프라이버시 지수 p_k가 획득되고, 상기 장치 m에 공유된 파일의 프라이버시 지수 p_m가 획득된다. 여기서, T₃,T₄ 및 T₅는 임계 값이다. UWB 각도의 오류는 5도이므로, T₃는 5이고; 친밀도 지수의 최대 값은 2이므로, T₄는 2이고; 친밀도 지수가 중간 값일 경우, 그 값은 1이고, 따라서 T₅는 1이다.Further, the source device traverses twice to obtain device k and device m with the smallest angle(s) using a bubble ranking algorithm. Here, the angle between the source device and the device k is

and the angle between the source device and the device m is

, and 1≤k≤n and 1≤m≤n. At the same time, the distance d k between the source device and the device _k and A distance d _m between the source device and the device m is calculated. An affinity index f _k of the device k is obtained, and an affinity index f _m of the device m is obtained. A privacy index p _{k of a file shared with the device k} is obtained, and a privacy index p _m of a file shared with the device m is obtained. Here, T ₃ , T ₄ and T ₅ are threshold values. The error of the UWB angle is 5 degrees, so T ₃ is 5; Since the maximum value of the affinity index is 2, T ₄ is 2; When the affinity index is a median value, the value is 1, and thus T ₅ is 1.

In Figure 6, the method of determining the target smart device,

와 상기 각도

간의 차이 값이 T₃보다 큰 경우, 여기서 상기 각도

는 상기 소스 장치와 상기 장치 k사이의 각도이고, 상기 각도

는 상기 소스 장치와 상기 장치 m 사이의 각도이며, 상기 각도

가 상기 각도

보다 작으면, 상기 장치 k는 상기 소스 장치가 상기 파일을 공유할 상기 대상 스마트 장치로 결정되고, 상기 각도

가 상기 각도

보다 작지 않으면, 상기 장치 m이 상기 소스 장치가 상기 파일을 공유할 상기 대상 스마트 장치로 결정되고, 그리고(1) the above angle

and the angle

the difference value between T ₃ If large, where the above angle

is the angle between the source device and the device k, the angle

is the angle between the source device and the device m, the angle

is said angle

less than, the device k is determined as the target smart device with which the source device will share the file, the angle

is said angle

if not less than, the device m is determined as the target smart device with which the source device will share the file, and

와 상기 각도

간의 차이 값이 T₃보다 작거나 같은 경우,여기서 상기 각도

는 상기 소스 장치와 상기 장치 k사이의 각도이고, 상기 각도

는 상기 소스 장치와 상기 장치 m 사이의 각도이며, 상기 d_k가 상기 d_m보다 작으면, 상기 장치 k가 상기 소스 장치가 상기 파일을 공유할 상기 대상 스마트 장치로 결정되고, 상기 d_k가 상기 d_m보다 작지 않으면, 상기 장치 m이 상기 소스 장치가 상기 파일을 공유할 상기 대상 스마트 장치로 결정된다. (2) the angle

and the angle

If the difference between the values is less than or equal to T ₃ , where the angle

is the angle between the source device and the device k, the angle

is the angle between the source device and the device m, and if the d _k is less than the d _m , the device k is determined as the target smart device with which the source device will share the file, and the d _k is the If not less than d _m , the device m is determined as the target smart device with which the source device will share the file.

After the target smart device is determined, a sharing method may be determined based on the affinity index and the privacy index of the target smart device.

7 is a flowchart of determining a sharing method according to embodiments of the present disclosure. 7 , it is assumed that the device k is determined as the target smart device.

7 , the operation of determining a sharing method for sharing with the device k includes:

(1) if the affinity index f _k of the device k is equal to or greater than T ₄ , it is confirmed that the source device and the device k are familiar enough to share the file with the device k in the direct connection manner.

(2) if the affinity index f _k of the device k is less than T ₅ , it is determined that the source device is not intimate with the device k, and the privacy index p _k of the file shared with the device k is also if it is determined as 0, the file is shared with the device k in the direct connection manner; if it is determined that the privacy index p _k of the file shared with the device k is also non-zero, the file is shared with the device k in the prompt connection manner; and

(3) when the affinity index fk of the device k is greater than T ₅ and less than T ₄ , the source device is identified as partially intimate with the device k, and the privacy index p of the file shared with the device k _{If k} is determined to be 0 or 1, the file is shared to the device k in the direct connection manner, and if it is determined that the privacy index p _k of the file shared to the device k is also not 0 or 1 (ie, if 2), the file is shared to device k in the prompt connection manner.

In the direct connection method, the source device establishes a connection with the target smart device without further notifying the user, and shares the file based on the connection.

In the prompt connection method, the source device further sends a prompt (eg, such as a confirmation box) to the user, and establishes a connection with the target smart device when receiving a user approval indication, and the The file is shared based on a connection, and a connection with the target smart device is not established when receiving a user rejection indication.

7 , it is assumed that the device k is determined as the target smart device. In fact, the logic shown in FIG. 7 can also be applied to a scenario in which the device m is determined as the target smart device.

A typical application scenario for embodiments of the present disclosure is described below.

8 is a first exemplary diagram of file sharing according to embodiments of the present disclosure.

In the scenario shown in Fig. 8, user A is holding a mobile phone equipped with a TeTeUWB chip, and in the peripheral area there are three candidate smart devices equipped with a UWB tag (or UWB chip): user B's mobile phone, television and smart phone. The speaker box is located.

The user A shakes the mobile phone to intelligently share multimedia files.

Table 1 below is a decision table generated by the user A's mobile phone based on the shaking motion of the mobile phone.

<Table 1>

The user A only needs to shake his mobile phone, and then it is connected to the user B's mobile phone. Then, the mobile phone of the user A determines that the mobile phone of the user B is the target smart device based on Table 1, and automatically connects the mobile phone of the user B to share the contents in the mobile phone of the user A with the mobile phone of the user B can share

9 is a second exemplary diagram of file sharing according to embodiments of the present disclosure.

In the scenario shown in Fig. 9, user A is holding a mobile phone equipped with a UWB chip, and in the peripheral area there are three candidate smart devices equipped with a UWB tag (or UWB chip), namely a television, and user B's mobile phone ( 1), and user C's mobile phone 2 are located. The user A shares a multimedia file intelligently by shaking the mobile phone. Table 2 below is a decision table generated by the user A's mobile phone based on the mobile phone shaking motion.

<Table 2>

The user A simply shakes his mobile phone, and then connects to the television. Then, the mobile phone of the user A may determine that the television is the target smart device based on Table 2. In addition, the user A's mobile phone determines that the file should be shared with the television by the prompt connection method based on the television's affinity index and the multimedia file's privacy index. At this time, the mobile phone of the user A also sends a prompt (eg, a confirmation box), and upon receiving the user approval indication, establishes a connection with the television, and shares multimedia files on the television based on the connection; ; Upon receiving the user rejection indication, the connection with the television is not established.

10 is a third exemplary diagram of file sharing according to embodiments of the present disclosure.

In the scenario shown in Fig. 10, user A is holding a mobile phone equipped with a UWB chip, and a candidate smart device with a UWB tag, that is, user B's mobile phone, is nearby.

Accordingly, the mobile phone of the user A can directly determine that the mobile phone of the user B is the target smart device. In addition, the mobile phone of the user A determines that the file should be shared with the mobile phone of the user B in a prompt connection method or a direct connection method based on the affinity index of the user B's mobile phone and the privacy index of the multimedia file.

Embodiments of the present disclosure also provide a file sharing device.

11 is a structural diagram of a file sharing device according to embodiments of the present disclosure.

11 , the file sharing device includes:

an angle determining module 1101, configured to determine angles for each of the candidate smart devices based on the UWB positioning scheme;

a target smart device determining module 1102, configured to determine a target smart device from the candidate smart devices based on the angles; and

and a sharing module 1103 configured to share the file to the target smart device.

In an embodiment, the device further comprises a distance determining module 1104, configured to determine distances to each of the candidate smart devices based on the UWB positioning scheme, wherein the target smart device determining module 1102 is configured to: and determine the target smart device from the candidate smart devices based on the angles and the distances.

In an embodiment, the target smart device determining module 1102 is configured to determine a candidate smart device with a first minimum angle and a candidate smart device with a second minimum angle based on the angle ranking result. If the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is greater than a predetermined angle threshold, the candidate smart device with the first minimum angle and the second minimum angle determine a candidate smart device having a minimum angle among candidate smart devices having , as the target smart device; If the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is less than or equal to the predetermined angle threshold, the distance to the candidate smart device with the first minimum angle if is less than or equal to the distance to the candidate smart device with the second minimum angle, determine the candidate smart device with the first minimum angle as the target smart device; If the distance to the candidate smart device with the first minimum angle is greater than the distance to the candidate smart device with the second minimum angle, the candidate smart device with the second minimum angle is selected as the target smart device. determined by the device.

In an embodiment, the sharing module 1103 is configured to determine the affinity index of the target smart device, determine the privacy index of the file, and determine a sharing method based on the affinity index and the privacy index.

In one embodiment, the sharing module 1103 is configured to, when it is determined that there is a connection history with the target smart device, determine the intimacy index of the target smart device as a first level higher than the basic level; If the sharing module has a connection history with the target smart device and it is determined that it is in the same hotspot or the same Wi-Fi network as the target smart device, the intimacy index of the target smart device is higher than the first level and determine to the second level.

In an embodiment, the sharing module 1103 is configured to, when it is determined that the file is from a public resource, determine that the privacy index of the file is the basic level; if it is determined that the file is from a personal resource and that the file does not contain a personal place, determine that the privacy index of the file is the first level higher than the basic level; and determine the privacy index of the file as the second level higher than the first level when it is determined that the file is from a personal resource and the file includes a personal place.

In one embodiment, the sharing module 1103 is configured to share the file with the target smart device in a direct connection manner when the affinity index is greater than a predetermined high affinity threshold; when the affinity index is lower than a predetermined low affinity threshold and the privacy index is a basic level, share the file with the target smart device in the direct connection manner; When the affinity index is between the predetermined low affinity threshold value and the predetermined high affinity threshold value, if the privacy index is the basic level or the first level, the file is directly connected to the target smart device and, if the privacy index is the second level, share the file to the target smart device in the prompt connection manner.

Embodiments of the present disclosure further propose a smart device having a memory-processor architecture.

12 is a structural diagram of a smart device according to embodiments of the present disclosure.

As shown in FIG. 12 , a smart device having a memory-processor architecture includes a processor 1201 and a memory 1202 , wherein the memory 1202 stores an application executable by the processor 1201 , , cause the processor 1201 to execute any one of the methods for sharing a file described above.

The memory 1202 may be specifically implemented as multiple storage media such as electrically erasable programmable read-only memory (EEPROM), flash memory, or programmable read-only memory (PROM). The processor 1201 may be a central processing unit (CPU). Illustratively, the processor 1201 includes at least one CPU, a semiconductor-based microprocessor, a programmable logic device (PLD), or the like. Exemplary PLDs include application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), programmable array logic (PALs), complex programmable logic devices (CPLDs), and erasable programmable logic devices ( erasable programmable logic devices (EPLD). The processor 1201 may include multiple processing elements integrated within a single device or distributed among devices. A processor source may process instructions sequentially, concurrently, or partially concurrently.

In summary, in the embodiments of the present disclosure, the angles for each of the candidate smart devices are determined based on the ultra-wideband positioning scheme; the target smart device is determined from the candidate smart devices based on the angles; The file is shared to the target smart device. Accordingly, according to an embodiment of the present disclosure, it is possible to determine the target smart device based on the angles, and there is no need to intentionally bring the file providing device close to the file receiving device, thus reducing the complexity of the operation.

Also, according to embodiments of the present disclosure, the target smart device may be determined by comprehensively considering the angles and the distances, and the accuracy of the target smart device is improved.

Moreover, according to embodiments of the present disclosure, sharing is also achieved based on the affinity index and the privacy index, and a desirable compromise between convenience and privacy protection is achieved.

It should be noted that not all steps and modules depicted in the foregoing process and schematic diagrams are required, and that a particular step or module may be omitted as desired. The execution order of the steps is not fixed and can be adjusted as needed. The division of the module is simply to facilitate the explanation of the division of the adopted function, and in actual implementation, one module may be implemented as a plurality of modules, and the functions of the plurality of modules may also be implemented as the same module, , the modules may be located on the same device or on different devices.

A hardware module in various embodiments may be implemented mechanically or electronically. For example, a hardware module may include permanent circuitry or logic devices specifically designed to perform specific operations. Hardware modules may also include programmable logic devices or circuits (including, for example, general-purpose processors or other programmable processors) temporarily configured by software to perform particular operations.

The present disclosure also provides a machine-readable storage medium storing instructions for causing a machine to perform the method of the present disclosure. Specifically, a system or apparatus having a storage medium may be provided, wherein the storage medium stores a software program code for realizing a function of one of the above embodiments, and a computer (or CPU or MPU) of the system or apparatus The program code stored in the storage medium may be read and executed. In addition, some or all of the actual operations may be completed by an operating system running on a computer or the like through program code-based instructions. The program code read from the storage medium may be recorded in a memory provided in an expansion board inserted into the computer or may be recorded in a memory provided in an expansion device connected to the computer, and some or all of the actual operation is an instruction based on the program code. is executed by a CPU installed in an expansion board or an expansion unit through

The foregoing is a description of preferred embodiments of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modifications, equivalent substitutes or improvements within the spirit and principle of the present disclosure should be included within the scope of the present disclosure.

Claims (15)

A method of sharing a file, comprising:
determining angles for each of the candidate smart devices based on an Ultra Wide Band (UWB) positioning scheme;
determining a target smart device from the candidate smart devices based on the angles; and
A file sharing method comprising the operation of sharing the file to the target smart device.
The method of claim 1, wherein the method comprises:
further comprising determining distances to each of the candidate smart devices based on the UWB positioning scheme;
Determining the target smart device from the candidate smart devices based on the angles includes:
The method of claim 1, further comprising determining the target smart device from the candidate smart devices based on the angles and the distances.
The method of claim 2, wherein the determining of the target smart device from the candidate smart devices based on the angles and the distances comprises:
determining a candidate smart device having a first minimum angle and a candidate smart device having a second minimum angle based on the angle ranking result;
If the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is greater than a predetermined angle threshold, the candidate smart device with the first minimum angle and the second minimum angle a candidate smart device having a minimum angle among candidate smart devices having an angle is determined as the target smart device;
If the angle difference between the candidate smart device having the second minimum angle and the candidate smart device having the first minimum angle is less than or equal to the predetermined angle threshold, the distance to the candidate smart device having the first minimum angle If is less than or equal to the distance to the candidate smart device with the second minimum angle, the candidate smart device with the first minimum angle is determined as the target smart device, and the candidate smart device with the first minimum angle If the distance to is greater than the distance to the candidate smart device having the second minimum angle, the candidate smart device having the second minimum angle is determined as the target smart device.
According to claim 1, wherein the operation of sharing the file to the target smart device,
determining an affinity index of the target smart device;
determining a privacy index of the file; and
and determining a sharing method based on the affinity index and the privacy index.
The method of claim 4, wherein the determining of the affinity index of the target smart device comprises:
determining that the intimacy index of the target smart device is a first level higher than a basic level when it is determined that there is a connection history with the target smart device; and
If there is a connection history with the target smart device and it is determined that it is in the same hotspot or the same WI-FI network as the target smart device, the intimacy index of the target smart device is set to a second level higher than the first level A method, characterized in that it includes the operation of determining
The method of claim 4, wherein determining the privacy index of the file comprises:
determining that the privacy index of the file is a basic level when it is determined that the file is obtained from a public resource;
determining that the privacy index of the file is a first level higher than the basic level when it is determined that the file is from a personal resource and the file does not include a personal place; and
and determining that the privacy index of the file is a second level higher than the first level when it is determined that the file is from the personal resource and the file includes the personal place.
The method of claim 6, wherein the determining of a sharing method based on the affinity index and the privacy index comprises:
when the affinity index is greater than a predetermined high affinity threshold, sharing the file to the target smart device in a direct connection manner;
sharing the file to the target smart device in the direct connection manner when the affinity index is lower than a predetermined low affinity threshold and the privacy index is the basic level;
When the affinity index is lower than the predetermined low affinity threshold and the privacy index is the first level or the second level, sharing the file to the target smart device in a prompt connection manner ; and
When the affinity index is between the predetermined low affinity threshold value and the predetermined high affinity threshold value, if the privacy index is the basic level or the first level, the file is connected to the target smart device in the direct connection manner and, if the privacy index is the second level, sharing the file to the target smart device in the prompt connection method.
In a device for sharing files,
an angle determining module, configured to determine angles for each of the candidate smart devices based on an Ultra Wide Band (UWB) positioning scheme;
a target smart device determining module, configured to determine a target smart device from the candidate smart devices based on the angles; and
A device comprising a sharing module, configured to share the file to the target smart device.
9. The apparatus of claim 8, wherein the device comprises:
a distance determining module, configured to determine distances to each of the candidate smart devices based on the UWB positioning scheme;
The device, characterized in that the target smart device determining module is configured to determine the target smart device from the candidate smart devices based on the angles and the distances.
10. The method of claim 9,
the target smart device determining module is configured to determine a candidate smart device with a first minimum angle and a candidate smart device with a second minimum angle based on the angle ranking result;
If the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is greater than a predetermined angle threshold, the candidate smart device with the first minimum angle and the second minimum angle determine a candidate smart device having a minimum angle among candidate smart devices having , as the target smart device;
If the angle difference between the candidate smart device with the second minimum angle and the candidate smart device with the first minimum angle is less than or equal to the predetermined angle threshold, the distance to the candidate smart device with the first minimum angle if is less than or equal to the distance to the candidate smart device with the second minimum angle, determine the candidate smart device with the first minimum angle as the target smart device; and
If the distance from the candidate smart device with the first minimum angle is greater than the distance to the candidate smart device with the second minimum angle, the candidate smart device with the second minimum angle is selected as the target smart device. A device, characterized in that determined by the device.
The device according to claim 8, wherein the sharing module is configured to determine an affinity index of a target smart device, determine a privacy index of the file, and determine a sharing method based on the affinity index and the privacy index .
12. The method of claim 11,
the sharing module, when it is determined that there is a connection history with the target smart device, determines the intimacy index of the target smart device as a first level higher than a basic level; and
If there is a connection history with the target smart device and it is determined that the target smart device is in the same hotspot or the same Wi-Fi network, the intimacy index of the target smart device is set to a second level higher than the first level A device configured to determine.
12. The method of claim 11,
the sharing module is configured to, when it is determined that the file is from a public resource, determine the privacy index of the file as a basic level;
if it is determined that the file is from a personal resource and the file does not include a personal place, determine the privacy index of the file as a first level higher than the basic level; and
and determine the privacy index of the file as a second level higher than the first level if it is determined that the file is from the personal resource and the file contains the personal location. .
14. The method of claim 13,
In an embodiment, the sharing module is configured to, when the affinity index is greater than a predetermined high affinity threshold, share the file with the target smart device in a direct connection manner;
if the affinity index is lower than a predetermined low affinity threshold and the privacy index is the basic level, share the file with the target smart device in the direct connection manner; and
When the affinity index is between the predetermined low affinity threshold value and the predetermined high affinity threshold value, if the privacy index is the basic level or the first level, the file is connected to the target smart device in the direct connection manner and, if the privacy index is the second level, share the file to the target smart device in a prompt connection manner.
A smart device comprising a processor and a memory, wherein the memory stores an application executable by the processor to cause the processor to perform the method for sharing a file according to any one of claims 1 to 7.

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