WO2022114408A1

WO2022114408A1 - Method, apparatus and smart device for sharing file

Info

Publication number: WO2022114408A1
Application number: PCT/KR2021/005103
Authority: WO
Inventors: Suqin XU; Bin Li; Lv LU; Qiugan SHI; Jie Fan
Original assignee: Samsung Electronics Co., Ltd.
Priority date: 2020-11-24
Filing date: 2021-04-22
Publication date: 2022-06-02

Abstract

The embodiments of the disclosure disclose a method, apparatus and smart device for sharing a file. The method comprises: determining an angle to each candidate smart device based on an Ultra Wide Band (UWB) positioning manner; determining a target smart device from the candidate smart devices based on the angle; and sharing the file to the target smart device.

Description

METHOD, APPARATUS AND SMART DEVICE FOR SHARING FILE

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

A function of AirDrop can share files among multiple devices wirelessly. One-to-one file transfer (similar to a wireless network transfer) can be carried out by simply dragging the file to the head portrait of a friend using the function of AirDrop.

In the AirDrop of the prior art, based on the space perception capability provided by a U1 chip, a file providing device is directed to file receiving devices of other people, priority ranking is performed according to the distance (the closer the file receiving device is, the higher the priority), and then the file is shared to the file receiving device with a highest priority.

However, in this implementation manner, the file providing device needs to be deliberately close to the file receiving device, which is complicated.

The disclosure provides a method, apparatus and smart device for sharing a file, which can reduce the operation complexity.

The technical scheme of the embodiments of the disclosure is as follows.

A method for sharing a file comprises:

determining an angle to each candidate smart device based on an Ultra Wide Band positioning manner;

determining a target smart device from the candidate smart devices based on the angle; and

sharing the file to the target smart device.

In one embodiment, the method further comprises:

determining a distance to each candidate smart device based on the Ultra Wide Band positioning manner;

wherein the determining the target smart device from the candidate smart devices based on the angle comprises:

determining the target smart device from the candidate smart devices based on the angle and the distance.

In one embodiment, the determining the target smart device from the candidate smart devices based on the angle and the distance comprises:

the candidate smart device with a first smallest angle and the candidate smart device with a second smallest angle is determined based on an angle ranking result;

when an angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is greater than a predetermined angle threshold, the candidate smart device with the smallest angle is determined as the target smart device; and

when the angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is smaller than or equal to the predetermined angle threshold, if the distance to the candidate smart device with the first smallest angle is smaller than or equal to the distance to the candidate smart device with the second smallest angle, the candidate smart device with the smallest angle is determined as the target smart device, and if the distance to the candidate smart device with the first smallest angle is greater than the distance to the candidate smart device with the second smallest angle, the candidate smart device with the second smallest angle is determined as the target smart device.

In one embodiment, the sharing the file to the target smart device comprises:

determining a familiarity index of the target smart device;

determining a privacy index of the file; and

determining a sharing manner based on the familiarity index and the privacy index.

In one embodiment, the determining the familiarity index of the target smart device comprises:

when it is determined that there is a historical connection record with the target smart device, the familiarity index of the target smart device is determined to be a first level higher than a basic level; and

when it is determined that there is a historical connection record with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, the familiarity index of the target smart device is determined to be a second level higher than the first level.

In one embodiment, the determining the privacy index of the file comprises:

when it is determined that the file is from a public resource, the privacy index of the file is determined to be a basic level;

when it is determined that the file is from a private resource and the file does not contain a personal place, the privacy index of the file is determined to be a first level higher than the basic level; and

when it is determined that the file is from a private resource and the file contain a personal place, the privacy index of the file is determined to be a second level higher than the first level.

In one embodiment, the determining the sharing manner based on the familiarity index and the privacy index comprises:

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

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

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

when the familiarity index is between the predetermined low familiarity threshold and the predetermined high familiarity threshold, if the privacy index is the basic level or the first level, the file is shared to the target smart device in the direct connection manner; and if the privacy index is the second level, the file is shared to the target smart device in the prompt connection manner.

An apparatus for sharing a file comprises:

an angle determination module, configured to determine an angle to each candidate smart device based on an Ultra Wide Band positioning manner;

a target smart device determination module, configured to determine a target smart device from the candidate smart devices based on the angle; and

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

In one embodiment, the apparatus further comprises:

a distance determination module, configured to determine a distance to each candidate smart device based on the Ultra Wide Band positioning manner;

wherein the target smart device determination module is configured to determine the target smart device from the candidate smart devices based on the angle and the distance.

In one embodiment, the target smart device determination module is configured to determine the candidate smart device with a first smallest angle and the candidate smart device with a second smallest angle based on an angle ranking result; when an angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is greater than a predetermined angle threshold, the candidate smart device with the first smallest angle is determined as the target smart device; when the angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is smaller than or equal to the predetermined angle threshold, if the distance to the candidate smart device with the first smallest angle is smaller than or equal to the distance to the candidate smart device with the second smallest angle, the candidate smart device with the first smallest angle is determined as the target smart device, and if the distance to the candidate smart device with the first smallest angle is greater than the distance to the candidate smart device with the second smallest angle, the candidate smart device with the second smallest angle is determined as the target smart device.

In one embodiment, the sharing module is configured to determine a familiarity index of the target smart device, determining a privacy index of the file, and determining a sharing manner based on the familiarity index and the privacy index.

In one embodiment, the sharing module is configured for: when it is determined that there is a historical connection record with the target smart device, the familiarity index of the target smart device is determined to be a first level higher than a basic level; when it is determined that there is a historical connection record with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, the familiarity index of the target smart device is determined to be a second level higher than the first level.

In one embodiment, the sharing module is configured for: when it is determined that the file is from a public resource, the privacy index of the file is determined to be the basic level; when it is determined that the file is from a private resource and the file does not contain a personal place, the privacy index of the file is determined to be the first level higher than the basic level; when it is determined that the file is from a private resource and the file contain a personal place, the privacy index of the file is determined to be the second level higher than the first level.

In one embodiment, the sharing module is configured for: when the familiarity index is greater than a predetermined high familiarity threshold, the file is shared to the target smart device in a direct connection manner; when the familiarity index is lower than a predetermined low familiarity threshold and the privacy index is in the basic level, the file is shared to the target smart device in the direct connection manner; when the familiarity index is between the predetermined low familiarity threshold and the predetermined high familiarity threshold, the file is shared to the target smart device in the direct connection manner if the privacy index is the basic level or the first level, and the file is shared to the target smart device in a prompt connection manner if the privacy index is the second level.

An smart device comprises a processor and a memory; where

the memory stores an application executable by the processor for causing the processor to perform a method for sharing a file described above.

A computer-readable storage medium has stored therein computer-readable instructions for executing the method for sharing a file described above.

In summary, in embodiments of the disclosure, an angle to each candidate smart device is determined based on an ultra-wide band positioning manner; a target smart device is determined from the candidate smart devices based on the angle; a file is shared to the target smart device. Therefore, according to the embodiments of the disclosure, the target smart device can be determined based on the angle, it is not necessary to intentionally bring a file providing device close to a file receiving device, and the operation complexity is reduced.

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

In addition, according to the embodiments of the disclosure, a sharing manner is also determined based on the familiarity index and the privacy index, and a good compromise between convenience and privacy protection is achieved.

FIG. 1 is a flow diagram of a method for sharing a file according to embodiments of the present disclosure.

FIG. 2 is a schematic diagram of a discovery phase and a ranging phase in an ultra-wide band (UWB) positioning process according to embodiments of the present disclosure.

FIG. 3 is a schematic diagram of a coordinate system of a UWB chip having three antennas according to embodiments of the present disclosure.

FIG. 4 is a schematic diagram of determining a distance between the antenna of the UWB chip and a target device according to embodiments of the present disclosure.

FIG. 5 is a schematic diagram of determining an angle between the UWB chip and the target device according to embodiments of the present disclosure.

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

FIG. 7 is a flow diagram of determining a sharing manner according to embodiments of the present disclosure.

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

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

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

FIG. 11 is a structural diagram of an apparatus for sharing a file according to embodiments of the disclosure.

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

In order to make the objectives, technical solutions, and advantages of the present application clearer, the present disclosure will be further described below in detail by embodiments with reference to the accompanying drawings.

For the sake of simplicity and intuition in description, the solution of the present disclosure will be explained by describing several representative embodiments. Numerous details in the embodiments are only used for helping understanding the solutions of the present disclosure. However, it is obvious that the technical solutions of the present disclosure may not be limited to these details during implementing. In order to avoid unnecessarily obscuring the solutions of the present disclosure, some embodiments are not described in detail, but only the framework is given. Hereinafter, "comprise" indicates "comprise but not limited to", and "according to" indicates "at least according to ..., but not limited to only according to...". Due to Chinese language habits, when the quantity of a component is not specifically indicated below, it means that the component may be one or more, or may be understood as at least one.

In embodiments of the disclosure, Ultra Wide Band (UWB) positioning technology is used to realize a technical scheme of sharing a file based on angles of smart devices. The angle and other characteristics can be utilized to automatically connect target devices through a decision algorithm, to achieve a one-stop sharing manner.

First, a description is rendered to the UWB positioning technology.

UWB positioning technology is a positioning technology using wireless carrier communication. It does not use sinusoidal carrier, but uses nanosecond non-sinusoidal narrow pulse to transmit data, so it occupies a wide spectrum. UWB positioning technology has the advantages of low system complexity, low density of transmitted signal power spectral, insensitivity to channel fading, low interception capability, high positioning accuracy and the like, and is particularly suitable for high-speed wireless access in dense multipath places such as indoors. In the UWB positioning technology, the time information and the angle information of the target to be positioned can be accurately obtained, and the time information can be converted into distance information, so that the position information of the target to be positioned can be obtained by combining the angle information and geometric positioning methods such as triangular positioning. Methods for measuring angle information and time information commonly used in UWB positioning technology comprise: methods of measurement based on Received Signal Strength (RSS), based on Angle Of Arrival (AOA) or Time Difference Of Arrival (TDOA).

While specific ways of determining the angle to the target be positioned based on the UWB positioning technology have been exemplified above, those skilled in the art will appreciate that such descriptions are exemplary only and are not intended to limit the protection scope of the embodiments of the disclosure.

FIG. 1 is a flow diagram of a method for sharing a file according to embodiments of the disclosure. The method shown in FIG. 1 may be performed by a device (e.g. referred to as a source device) that needs to share the file to other devices.

As shown in FIG. 1, the method comprises:

step 101: an angle to each candidate smart device is determined based on the UWB positioning manner;

step 102: a target smart device is determined from the candidate smart devices based on the angle; and

step 103: the file is shared to the target smart device.

Here, the candidate smart devices may include UWB chips or UWB tags. The target smart device is the smart device which is determined from the candidate smart devices and needs to be shared with the file.

The shared file may be in various types of file formats, such as multimedia file. More specifically, the file may be an image file, a video file or an audio file, etc. Alternatively, the source device may provide the file to the target smart device based on a communication mean such as infrared, near field communication, Bluetooth, ZigBee, wireless broadband, third generation mobile communication, fourth generation mobile communication, or fifth generation mobile communication.

Preferably, prior to step 101 a user triggers the process of FIG. 1 by the operation of shaking the source device. In order to prevent a misoperation, an accelerometer in the source device may be used to acquire acceleration of a shake action, a gyroscope in the source device may be used to acquire angular velocity of the shake action, and when the acceleration and the angular velocity are respectively greater than or equal to respective predetermined thresholds, it is determined that the user is ready to share the file and the execution of the flow shown in FIG. 1 starts. When at least one of the acceleration and the angular velocity is smaller than a respective predetermined threshold, the shake action is assumed to be the misoperation, and the flow shown in FIG. 1 is not executed.

Preferably, the source device can select a connection manner according to the content to be shared. For example, a DLNA manner may be used to establish a connection when it is desired to cast a public video, and a Bluetooth manner may be used to establish a connection when it is desired to share audio to a loudspeaker box.

In one embodiment, the method further comprises:

determining a distance to each candidate smart device based on the UWB positioning manner; wherein determining the target smart device from the candidate smart devices based on the angle in step 102 comprises: determining the target smart device from the candidate smart devices based on the angle and the distance.

In one embodiment, determining the target smart device from the candidate smart devices based on the angle and the distance comprises:

determining the candidate smart device with a first smallest angle and the candidate smart device with a second smallest angle based on an angle ranking result, wherein: when an angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is greater than a predetermined angle threshold, the candidate smart device with the first smallest angle is determined as the target smart device; when the angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is smaller than or equal to the predetermined angle threshold, if the distance to the candidate smart device with the first smallest angle is smaller than or equal to the distance to the candidate smart device with the second smallest angle, the candidate smart device with the first smallest angle is determined as the target smart device, and if the distance to the candidate smart device with the first smallest angle is greater than the distance to the candidate smart device with the second smallest angle, the candidate smart device with the second smallest angle is determined as the target smart device.

Therefore, the target smart device can be determined more accurately based on the judgment and decision from two dimensions of the angle and the distance.

Angle and distance calculations based on the UWB technology are described below.

FIG. 2 is a schematic diagram of a discovery phase and a ranging phase in an ultra-wide band (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 by using Blink messages; in the ranging phase, the UWB mechanism implements positioning based on three data exchange processes (respectively called Poll, Response and Final).

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

In FIG. 3, the UWB chip containing three antennas is taken as an example. The three antennas are located at P₁, P₂ and P₃, respectively. Connecting the three antennas of the UWB chip can determine the outer center O of the triangle, i.e. the origin of coordinates, wherein OP₁=OP₂=OP₃. Wherein the coordinate of point P_l are (x₁, y₁, O), the coordinates of point P₂ are (x₂, y₂, O) and the coordinates of point P₃ are (x₃, y₃, O).

As can be seen from FIG. 4, the distance from each UWB chip antenna to the target device can be determined, wherein time T1 is the time at which the source device (i.e. the UWB chip antenna) sends a data packet, time T2 is the time at which the target device receives the data packet, time T3 is the time at which the target device sends a reply data packet and time T4 is the time at which the source device receives the reply data packet. As such, a distance D (where C is the wave velocity) from the source device to the target device can be obtained by equation 1, where:

… (equation 1)

Here, the target device is abstracted as a point P, so the coordinates (x, y, z) of the point P need to be calculated.

The distances d_l, d₂ and d₃ of the three antennas to the target device are obtained by equation 2 in the manner described above for calculating the distance D of the source device to the target device.

… (equation 2)

wherein if there are more than three antenna points, an optimal solution of a point O with equal distances to each point can be obtained, and the obtained point O can be used as the origin of coordinates.

The included angles

and

are then calculated, where the vector coordinates of the Y-axis are (0,1,0) and the coordinates of Point O are (0, 0, 0);

then the following can be obtained by equation 3:

… (equation 3)

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

The above exemplifies an angle and distance calculation procedure based on the UWB technology. A person skilled in the art could realize that this description is only exemplary and is not used to limit the protection scope of the embodiments of the present disclosure.

In one embodiment, sharing the file to the target smart device in step 103 of FIG. 1 comprises: determining a familiarity index of the target smart device, determining a privacy index of the file, and determining a sharing manner based on the familiarity index and the privacy index.

Preferably, the determining a familiarity index of the target smart device comprises: when it is determined that there is a historical connection record with the target smart device, determining the familiarity index of the target smart device to be a first level higher than a basic level; when it is determined that there is a historical connection record with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, determining the familiarity index of the target smart device to be a second level higher than the first level.

Preferably, the determining a privacy index of the file comprises: when it is determined that the file is from a public resource, determining the privacy index of the file to be the basic level; when it is determined that the file is from a private resource and the file does not contain a personal place, determining the privacy index of the file to be in the first level higher than the basic level; when it is determined that the file is from a private resource and the file contain a personal place, determining the privacy index of the file to be the second level higher than the first level.

Preferably, the determining a sharing manner based on the familiarity index and the privacy index comprises: when the familiarity index is greater than a predetermined high familiarity threshold, sharing the file to the target smart device in a direct connection manner; when the familiarity index is lower than a predetermined low familiarity threshold and the privacy index is the basic level, sharing the file to the target smart device in the direct connection manner; when the familiarity index is lower than a predetermined low familiarity 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; when the familiarity index is between the predetermined low familiarity threshold and the predetermined high familiarity threshold, sharing the file to the target smart device in the direct connection manner if the privacy index is in the basic level or in the first level, and sharing the file to the target smart device in the prompt connection manner if the privacy index is in the second level.

It can be seen that in embodiments of the disclosure, four feature data (angle, distance, familiarity index, and privacy index) can be used to form a decision tree to decide which surrounding smart device to share the file with and how to share with the smart device.

The calculation of angles and distances is described in detail above, and the familiarity index and privacy index are described below.

The familiarity index reflects a familiarity degree between a device that needs to share the file (referred to as the source device) and a device that is shared with the file (referred to as the target device). The default value for the familiarity index is 0. A list of devices can be obtained from the source device, to compare with the Mac address of the device to be connected. If the target device had been connected to the source device previously, the familiarity 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 familiarity index is incremented by 1.

The privacy index reflects the privacy of the shared file that need to be shared. Manners to determine the privacy index comprise:

(1) for completely private information (such as payment information, notifications, etc.), it will not be shared;

(2) for a file from the public resource, such as videos, photos or articles on the web, the privacy index of the file can be set to be the basic level, such as 0;

(3) for a file from the private resource (e.g. videos, photos, etc. photographed by a user) and containing public locations (e.g. the photographed places are some public areas), the privacy index of the file may be determined to be the first level higher than the basic level, such as 1; and

(4) for a file from the private resource (e.g. videos, photos, etc. photographed by a user) and containing private places (e.g. the photographed places are some private rooms), the privacy index of the file may be determined to be in a second level higher than the first level, such as 2.

Typical examples of setting the familiarity index and the privacy index have been exemplified above, those skilled in the art will appreciate that such descriptions are exemplary only and are not intended to limit the protection scope of the implementations of the disclosure.

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

In FIG. 6, the specific algorithm for forming the decision tree by using the above angles, distances, familiarity indexes and privacy indexes is as follows.

First, the source device scans the surrounding n devices, and the source device determines the angles

with these n devices.

Moreover, the source device uses a bubble ranking algorithm to traverse twice to acquire a device k and a device m with minimum angles, wherein the angle between the source device and the device k is

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

, 1≤ k ≤n, 1≤ m ≤n. At the same time, the distance d_k between the source device and the device k, and the distance d_mbetween the source device and the device m are calculated. A familiarity index f_kof the device k is acquired; a familiarity index f_m of the device m is acquired; a privacy index p_k of the file shared to the device k is acquired; a privacy index p_m of the file shared to the device m is acquired

Wherein T₃,T₄ and T₅ are thresholds. Since the error in UWB angle is 5 degrees, T₃ is 5; since the maximum value of the familiarity index is 2, T₄ is 2; when the familiarity index is a middle value, its value is 1, and thus T₅ is 1.

In FIG. 6, manners to determine the target smart device comprise:

(1) when the difference value between the angle

and the angle

is greater than T₃, wherein the angle

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

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

is smaller than

, it is determined that the device k is the target smart device for the source device to share the file with, and if

is not smaller than

, it is determined that the device m is the target smart device for the source device to share the file with; and

(2) when the difference value between the angle he angle

and the angle

is equal to or smaller than T₃, wherein the angle

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

is an angle between the source device and the device m, if d_k is smaller than d_m, it is determined that the device k is the target smart device for the source device to share the file with, and if d_k is not smaller than d_m, it is determined that the device m is the target smart device for the source device to share the file with.

After the target smart device is determined, the sharing manner can be determined based on the familiarity index and the file privacy index of the target smart device.

FIG. 7 is a flow diagram of determining a sharing manner according to embodiments of the present disclosure. In FIG. 7, it is assumed that the device k has been determined as the target smart device.

In FIG. 7, determining the sharing manner for sharing with the device k comprises:

(1) when the familiarity index f_k of the device k is greater than or equal to T₄, it is confirmed that the source device and the device k are familiar enough to share the file to the device k in the direct connection manner;

(2) when the familiarity index f_kof the device k is smaller than T₅, it is confirmed that the source device is unfamiliar with the device k, and when the privacy index p_k of the file shared to the device k is further judged to be 0, the file is shared to the device k in the direct connection manner; when the privacy index p_k of the file shared to the device k is further judged to be not 0, the file is shared to the device k in the prompt connection manner; and

(3) when the familiarity index f_k of the device k is greater than T₅ and smaller than T₄, it is confirmed that the source device is partially familiar with the device k, and when the privacy index p_k of the file shared to the device k is further judged to be 0 or 1, the file is shared to the device k in the direct connection manner, and when the privacy index p_k of the file shared to the device k is further judged to be not 0 or 1 (i.e. 2), the file is shared to the device k in the prompt connection manner.

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

In the prompt connection manner, the source device further sends a prompt (such as a confirmation box) to the user, establishes a connection with the target smart device when receiving a user approval indication, shares the file based on the connection; and does not establish a connection with the target smart device when receiving a user rejection indication.

In FIG. 7, it is assumed that the device k has been determined as the target smart device. Actually, the logic shown in FIG. 7 may also be applied to scenarios where the device m has been determined as the target smart device.

Typical application scenarios for embodiments of the disclosure are described below.

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

In the scenario shown in FIG. 8, a user A holds a mobile phone with the TeTeUWB chip, and there are three candidate smart devices with UWB tags (or UWB chips) in the surrounding area, namely user B's mobile phone, television, and smart loudspeaker box.

The user A shares the multimedia file intelligently by shaking the mobile phone.

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

Table 1

The user A only needs to shake his mobile phone and then directs to the user B's mobile phone. Then, the user A's mobile phone can decide that the user B's mobile phone is the target smart device based on the Table 1, and automatically connects the user B's mobile phone to share the content in the user A's mobile phone to the user B's mobile phone.

In the scenario shown in FIG. 9, the user A holds a mobile phone with the UWB chip, and there are three candidate smart devices with UWB tags (or UWB chips) in the surrounding area, namely television, user B's mobile phone 1 and user C's mobile phone 2. The user A shares the multimedia file intelligently by shaking the mobile phone. Table 2 is a decision table generated by the user A's mobile phone based on the operation of shaking the mobile phone.

Table 2

The user A only needs to shake his mobile phone and then directs to the television. Then, the user A's mobile phone can decide that the television is the target smart device based on the Table 2. Moreover, the user A's mobile phone determines that the file needs to be shared to the television in the prompt connection manner based on the familiarity index of the television and the privacy index of the multimedia file. At this time, the user A's mobile phone further sends a prompt (such as a confirmation box), establishes a connection with the television when receiving a user approval indication, shares multimedia file to the television based on the connection; and does not establish a connection with the television when receiving a user rejection indication.

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

In the scenario shown in FIG. 10, the user A holds a mobile phone with the UWB chip, and there is a candidate smart device with UWB tags around, i.e. the user B's mobile phone.

Therefore, the user A's mobile phone can directly decide that the user B's mobile phone is the target smart device. Moreover, the user A's mobile phone determines that a file need to be shared to the user B's mobile phone in the prompt connection manner or the direct connection manner based on the familiarity index of the television and the privacy index of the multimedia a file.

The embodiments of the disclosure also provide an apparatus for sharing a file.

FIG. 11 is a structural diagram of an apparatus for sharing a file according to embodiments of the present disclosure.

As shown in FIG. 11, the apparatus for sharing a file comprises:

an angle determination module 1101, configured to determine an angle to each candidate smart device based on an Ultra Wide Band positioning manner;

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

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

In one embodiment, the apparatus further comprises: a distance determination module 1104, configured to determine a distance to each candidate smart device based on the Ultra Wide Band positioning manner; wherein the target smart device determination module 1102 is configured to determine the target smart device from the candidate smart devices based on the angle and the distance.

In one embodiment, the target smart device determination module 1102 is configured to determine the candidate smart device with a first smallest angle and the candidate smart device with a second smallest angle based on an angle ranking result; when an angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is greater than a predetermined angle threshold, the candidate smart device with the first smallest angle is determined as the target smart device; when the angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is smaller than or equal to the predetermined angle threshold, if the distance to the candidate smart device with the first smallest angle is smaller than or equal to the distance to the candidate smart device with the second smallest angle, the candidate smart device with the first smallest angle is determined as the target smart device, and if the distance to the candidate smart device with the first smallest angle is greater than the distance to the candidate smart device with the second smallest angle, the candidate smart device with the second smallest angle is determined as the target smart device.

In one embodiment, the sharing module 1103 is configured to determine a familiarity index of the target smart device, determine a privacy index of the file, and determine a sharing manner based on the familiarity index and the privacy index.

In one embodiment, the sharing module 1103 is configured for, when it is determined that there is a historical connection record with the target smart device, determining the familiarity index of the target smart device to be a first level higher than a basic level; the sharing module is also configured for, when it is determined that there is a historical connection record with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, determining the familiarity index of the target smart device to be a second level higher than the first level.

In one embodiment, the sharing module 1103 is configured for, when it is determined that the file is from a public resource, determining the privacy index of the file to be the basic level; the sharing module is also configured for, when it is determined that the file is from a private resource and the file does not contain a personal place, determining the privacy index of the file to be the first level higher than the basic level; the sharing module is further configured for, when it is determined that the file is from a private resource and the file contain a personal place, determining the privacy index of the file to be the second level higher than the first level.

In one embodiment, the sharing module 1103 is configured for, when the familiarity index is greater than a predetermined high familiarity threshold, the file is shared to the target smart device in a direct connection manner; the sharing module is also configured for, when the familiarity index is lower than a predetermined low familiarity threshold and the privacy index is the basic level, the file is shared to the target smart device in the direct connection manner; the sharing module is also configured for, when the familiarity index is lower than the predetermined low familiarity threshold and the privacy index is in the first level or the second level, the file is shared to the target smart device in a prompt connection manner; the sharing module is further configured for, when the familiarity index is between the predetermined low familiarity threshold and the predetermined high familiarity threshold, the file is shared to the target smart device in the direct connection manner if the privacy index is in the basic level or in the first level, and the file is shared to the target smart device in the prompt connection manner if the privacy index is in the second level.

The embodiments of the present disclosure further propose an smart device with a memory-processor architecture.

FIG. 12 is a structural diagram of the smart device with a memory-processor architecture according to emboidiments of the present disclosure.

As shown in FIG. 12, the smart device with a memory-processor architecture comprises: a processor 1201 and a memory 1202; wherein the memory 1202 stores therein an application executable by the processor 1201, for causing the processor 1201 to execute any one of the method for sharing a file described above.

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

In summary, in the embodiments of the disclosure, an angle to each candidate smart device is determined based on an ultra-wide band positioning manner; a target smart device is determined from the candidate smart devices based on the angle; a file is shared to the target smart device. Therefore, according to the embodiments of the disclosure, the target smart device can be determined based on the angle, it is not necessary to intentionally bring a file providing device close to a file receiving device, and the operation complexity is reduced.

Moreover, according to the embodiments of the disclosure, the angle and the distance can be comprehensively considered to determine the target smart device, and the accuracy of the target smart device is improved.

In addition, according to the embodiments of the disclosure, sharing is also achieved based on the familiarity index and the privacy index, and a good compromise between convenience and privacy protection is achieved.

It should be noted that not all of the steps and modules depicted in the above-described processes and structural diagrams are required, and that certain steps or modules may be omitted as desired. The order of execution of the steps is not fixed and may be adjusted as required. The division of modules is merely to facilitate the description of the functional division adopted, and in actual implementation, one module can be implemented by a plurality of modules, the functions of the plurality of modules can also be implemented by the same module, and the modules can be located in the same device or different devices.

The hardware modules in the various embodiments may be implemented mechanically or electronically. For example, a hardware module may comprise specially designed permanent circuits or logic devices for performing specific operations. A hardware module may also comprise a programmable logic device or circuit (e.g. comprising a general purpose processor or other programmable processor) temporarily configured by software for performing specific operations.

The disclosure further provides a machine-readable storage medium, which stores instructions for causing a machine to perform the method of the present disclosure. Specifically, a system or a device with a storage medium may be provided, the storage medium stores software program codes for realizing the functions of one of the above embodiments, and a computer (or CPU or MPU) of the system or the device may read and execute the program codes stored in the storage medium. In addition, part of or all of the actual operations may be completed by an operating system and the like operated on a computer through the instructions based on program codes. The program codes read from the storage medium may also be written into a memory provided in an expansion board inserted into the computer or written into a memory provided in an expansion unit connected to the computer, and then part of or all of the actual operations are executed by a CPU and the like installed on the expansion board or the expansion unit through the instructions based on program codes, so that the functions of one of the above implementations are realized.

The foregoing is a description of preferred embodiments of the disclosure and is not intended to limit the scope of the disclosure. Any modification, equivalent alternative, or improvement, etc. within the spirit and principle of the disclosure should be included in the scope of the disclosure.

Claims

A method for sharing a file, comprising:

determining an angle to each candidate smart device based on an Ultra Wide Band positioning manner;

determining a target smart device from the candidate smart devices based on the angle; and

sharing the file to the target smart device.
The method of claim 1, characterized by, the method further comprises:

determining a distance to each candidate smart device based on the Ultra Wide Band positioning manner;

wherein the determining the target smart device from the candidate smart devices based on the angle comprises:

determining the target smart device from the candidate smart devices based on the angle and the distance.
The method of claim 2, characterized by, the determining the target smart device from the candidate smart devices based on the angle and the distance comprises:

the candidate smart device with a first smallest angle and the candidate smart device with a second smallest angle is determined based on an angle ranking result;

when an angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is greater than a predetermined angle threshold, the candidate smart device with the smallest angle is determined as the target smart device; and

when the angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is smaller than or equal to the predetermined angle threshold, if the distance to the candidate smart device with the first smallest angle is smaller than or equal to the distance to the candidate smart device with the second smallest angle, the candidate smart device with the smallest angle is determined as the target smart device, and if the distance to the candidate smart device with the first smallest angle is greater than the distance to the candidate smart device with the second smallest angle, the candidate smart device with the second smallest angle is determined as the target smart device.
The method of claim 1, characterized by, the sharing the file to the target smart device comprises:

determining a familiarity index of the target smart device;

determining a privacy index of the file; and

determining a sharing manner based on the familiarity index and the privacy index.
The method of claim 4, characterized by, the determining the familiarity index of the target smart device comprises:

when it is determined that there is a historical connection record with the target smart device, the familiarity index of the target smart device is determined to be a first level higher than a basic level; and

when it is determined that there is a historical connection record with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, the familiarity index of the target smart device is determined to be a second level higher than the first level.
The method of claim 4, characterized by, the determining the privacy index of the file comprises:

when it is determined that the file is from a public resource, the privacy index of the file is determined to be a basic level;

when it is determined that the file is from a private resource and the file does not contain a personal place, the privacy index of the file is determined to be a first level higher than the basic level; and

when it is determined that the file is from a private resource and the file contain a personal place, the privacy index of the file is determined to be a second level higher than the first level.
The method of claim 6, characterized by, the determining the sharing manner based on the familiarity index and the privacy index comprises:

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

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

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

when the familiarity index is between the predetermined low familiarity threshold and the predetermined high familiarity threshold, if the privacy index is the basic level or the first level, the file is shared to the target smart device in the direct connection manner; and if the privacy index is the second level, the file is shared to the target smart device in the prompt connection manner.
An apparatus for sharing a file, comprising:

an angle determination module, configured to determine an angle to each candidate smart device based on an Ultra Wide Band positioning manner;

a target smart device determination module, configured to determine a target smart device from the candidate smart devices based on the angle; and

a sharing module, configured to share the file to the target smart device.
The apparatus of claim 8, characterized by, further comprising:

a distance determination module, configured to determine a distance to each candidate smart device based on the Ultra Wide Band positioning manner;

wherein the target smart device determination module is configured to determine the target smart device from the candidate smart devices based on the angle and the distance.
The apparatus of claim 9, characterized by, the target smart device determination module is configured to determine the candidate smart device with a first smallest angle and the candidate smart device with a second smallest angle based on an angle ranking result; when an angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is greater than a predetermined angle threshold, the candidate smart device with the first smallest angle is determined as the target smart device; when the angle difference between the candidate smart device with the second smallest angle and the candidate smart device with the first smallest angle is smaller than or equal to the predetermined angle threshold, if the distance to the candidate smart device with the first smallest angle is smaller than or equal to the distance to the candidate smart device with the second smallest angle, the candidate smart device with the first smallest angle is determined as the target smart device, and if the distance to the candidate smart device with the first smallest angle is greater than the distance to the candidate smart device with the second smallest angle, the candidate smart device with the second smallest angle is determined as the target smart device.
The apparatus of claim 8, characterized by, the sharing module is configured to determine a familiarity index of the target smart device, determining a privacy index of the file, and determining a sharing manner based on the familiarity index and the privacy index.
The apparatus fof claim 11, characterized by, the sharing module is configured for: when it is determined that there is a historical connection record with the target smart device, the familiarity index of the target smart device is determined to be a first level higher than a basic level; when it is determined that there is a historical connection record with the target smart device and it is in the same hotspot or the same WI-FI network as the target smart device, the familiarity index of the target smart device is determined to be a second level higher than the first level.
The apparatus of claim 11, characterized by, the sharing module is configured for: when it is determined that the file is from a public resource, the privacy index of the file is determined to be the basic level; when it is determined that the file is from a private resource and the file does not contain a personal place, the privacy index of the file is determined to be the first level higher than the basic level; when it is determined that the file is from a private resource and the file contain a personal place, the privacy index of the file is determined to be the second level higher than the first level.
The apparatus of claim 13, characterized by, the sharing module is configured for: when the familiarity index is greater than a predetermined high familiarity threshold, the file is shared to the target smart device in a direct connection manner; when the familiarity index is lower than a predetermined low familiarity threshold and the privacy index is in the basic level, the file is shared to the target smart device in the direct connection manner; when the familiarity index is between the predetermined low familiarity threshold and the predetermined high familiarity threshold, the file is shared to the target smart device in the direct connection manner if the privacy index is the basic level or the first level, and the file is shared to the target smart device in a prompt connection manner if the privacy index is the second level.
An smart device, characterized by, comprising a processor and a memory;

wherein the memory stores an application executable by the processor for causing the processor to execute the method for sharing a file of any one of claims 1 to 7.