WO2013123697A1

WO2013123697A1 - Method for determining sharing device, method and system for file transmission

Info

Publication number: WO2013123697A1
Application number: PCT/CN2012/073742
Authority: WO
Inventors: 喻子达; 王袭; 赵向阳; 韩文; 朴成杰; 黄橙; 周林; 安娜
Original assignee: 海尔集团公司; 海尔集团技术研发中心
Priority date: 2012-02-21
Filing date: 2012-04-10
Publication date: 2013-08-29
Also published as: CN103257813A; CN103257813B

Abstract

Provided in the present invention are a method for determining a sharing device, and, a method and system for file transmission, comprising the steps of: A: determining the directions in a horizontal projection of sharing devices relative to a current sharing device; B: determining the direction pointed to in the horizontal projection by a touch track on the current sharing device; and, C: determining a matching sharing device in the direction pointed to by the touch track, and transmitting to the matching sharing device a selected file corresponding to the starting point of the touch track. Furthermore, also provided in the present invention is a system for implementing the method for file transmission for the sharing devices. The present invention determines a share-target by identifying the direction pointed to by a sliding track of a user, thus improving the convenience of operation. When selecting the share-target or transmitting the file, only sliding in the correct direction on the screen of the current sharing device is required, thus conserving operation time.

Description

Method for determining shared device and file transmission method and system

The present invention relates to a method and system for determining a shared device for multi-screen sharing. Background technique

"Three-network convergence" refers to the three major networks of telecommunication networks, computer networks and cable television networks that realize comprehensive communication services including voice, data and images through technological transformation. "Three-network convergence" achieves the perfect integration of service level, control layer and bearer level through multi-screen convergence, enabling multi-screen sharing between different shared devices. However, the existing shared device needs to accurately select an icon representing another shared device when identifying the sharing request, and cannot meet the user's needs in terms of operation convenience. Summary of the invention

In view of this, the main object of the present invention is to provide a method for determining a shared device and a file transmission method for multi-screen sharing, which can determine a shared object and transmit a shared file by recognizing the direction pointed by the user's sliding track. Achieve increased ease of operation.

The method for determining a shared device includes the following steps:

A: determining the directions in which the respective shared devices are projected on the horizontal plane with respect to the currently shared device;

B: determining the direction in which the touch track on the current shared device is projected in the horizontal plane; C: determining the shared device in the direction indicated by the touch track as the shared device to be communicated.

From above, by identifying the direction pointed by the user's sliding trajectory, the shared object is determined, and the convenience of the operation is increased. When selecting an object, just on the screen of the currently shared device Slide it up to save time.

Optionally, step A includes:

Determining the spatial coordinates of the current shared device according to the strength of at least three shared devices having spatial coordinates and the current shared device communication signal;

According to the spatial coordinates of the current shared device and the spatial coordinates of other shared devices, the directions in which the respective shared devices are projected on the horizontal plane with respect to the current shared device are determined.

From above, the calculation of the spatial coordinates of all the shared devices by the strength of the communication signal transmission determines the position of each shared device relative to the current shared device.

Optionally, step A includes:

Obtaining image information including at least three shared devices having spatial coordinates and the current shared device;

Performing image analysis according to the spatial coordinates of the three shared devices to determine the spatial coordinates of the current shared device;

From above, all shared device space coordinates are obtained by image information, and the position of each shared device relative to the current shared device is determined.

Optionally, the determining, by the step C, that the shared device that is in the direction indicated by the touch track includes:

The shared device in the direction with the smallest direction error indicated by the touch track is judged as the matched shared device.

From above, the fault tolerance is achieved by judging the shared device having the smallest error in the direction indicated by the touch track.

Optionally, after step A, the method further includes: displaying, on the touch screen of the current shared device, the icons of the other shared devices according to the determined directions of the shared devices in a direction corresponding to the beginning of the touch track.

From the above, the icons of other shared devices are visually displayed, and the shared devices that can be used as recipients are displayed more intuitively, thereby facilitating the operation.

The method further includes: determining the direction according to the initial touch trajectory, hiding other The icon for each shared device in the direction.

From above, when the initial touch trajectory is determined, the shared device in other directions is hidden, so that the screen presentation is more concise, and the user can more accurately select the shared device in the direction.

The method further includes: when there are more than two matching shared devices in the direction indicated by the touch track, only the icon of the matched shared device is displayed, and the shared device corresponding to the icon selected by the touch point is a matched shared device.

Further distinguishing the shared devices in the same direction by icons makes the operation more accurate. The file transfer method of the shared device, including the steps:

B: determining the direction in which the touch trajectory on the current shared device is projected in the horizontal plane;

C: determining a shared device that matches the direction indicated by the touch track, and transmitting the selected file corresponding to the start of the touch track to the matched shared device.

From above, the identification of the shared object is achieved by recognizing the direction in which the user's sliding trajectory is pointed, and the operation is facilitated. When selecting an object or selecting a file for transmission, simply slide it on the screen of the currently shared device to save operating time.

From above, the operation fault tolerance is increased by judging the shared device having the smallest error in the direction indicated by the touch track.

Optionally, it also includes:

Determine the direction according to the initial touch trajectory, and hide the icons of the shared devices in other directions;

When there are more than two matching shared devices in the direction indicated by the touch track,

Only the icon of the matched shared device is displayed, and the shared device corresponding to the icon selected by the touch point is a matching shared device. From above, when the initial touch trajectory is determined, the shared device in other directions is hidden, so that the screen presentation is more concise, and the user can more accurately select the shared device in the direction. Moreover, the shared device in the same direction is further distinguished by an icon, so that the operation is more accurate.

The present application further provides a system for determining a method and a file transmission method for a shared device that is applied to a multi-screen sharing, comprising: a spatial coordinate receiving unit, configured to receive spatial coordinates of the shared device;

a coordinate system conversion unit, configured to determine various directions of other shared devices in a horizontal plane with respect to the current shared device;

a touch track acquisition unit, configured to collect a touch track, where the start point of the touch track corresponds to the selected file;

a projection unit, configured to determine a projection direction of the touch track in a horizontal plane; a shared device identification unit, configured to determine a matched shared device according to a direction indicated by a horizontal projection of the touch track on the current shared device screen;

A shared file transfer unit that transfers the selected file to the matched shared device. From above, the identification of the shared object is achieved by recognizing the direction in which the user's sliding trajectory is pointed, and the operation is facilitated. When selecting an object or selecting a file for transmission, simply slide it on the screen of the currently shared device to save operating time. DRAWINGS

1 is a flowchart of a multi-screen shared file transmission method according to the present invention;

2 is a sub-flow chart of step S20 of the present invention;

3 is a schematic diagram of a location of a current shared device and a pointing device according to the present invention;

Figure 4 is a schematic view showing the display of the PAD of the present invention;

Figure 5 is a schematic view showing the structure of the system of the present invention. detailed description

The specific implementation manner of the sharing request identification method and the identification system applied to the selected object according to the present invention will be described in detail below with reference to FIGS. Among them, in this case, hair The current shared device that is shared is a mobile terminal with a touch screen, such as a tablet computer such as a PAD, a laptop, a mobile phone, and the like. The shared device in the wireless network also includes a fixed-point device with wireless interconnection function, that is, a relatively fixed-position wireless terminal, such as a desktop computer, a television, a printer, a wireless router, or a device for positioning only functions such as a micro base station, a signal. Transmitter, etc.

Hereinafter, the present invention will be described by taking a PAD to initiate file transfer to a computer as an example.

Step S10: When the PAD enters the above wireless network, the PAD establishes a wireless connection with the pointing device. The pointing device acquires the model number of the PAD, assigns an IP address to the PAD and provides it to the PAD. The pointing device stores the model and IP address of the PAD in its attribute list.

The pointing device stores a list of attributes of all shared devices wirelessly connected thereto, the attribute list storing the model number of the shared device, the device icon, the IP address and the spatial coordinates, and the spatial coordinates of the pointing device itself. Wherein, when the PAD position changes, the attribute list is updated with corresponding space coordinates.

For the establishment of a wireless connection, which is a well-known technique, the process of establishing a wireless connection will not be described again.

Step S20: Calculate the spatial coordinates of the PAD based on the spatial coordinates of the pointing device, and add the spatial coordinates to the attribute list corresponding to the PAD stored by the pointing device, and list the attribute and the network. All shared devices are shared so that the spatial coordinates of each shared device within the network are known by other devices.

The coordinates of the pointing device are relatively fixed, so the measurement of the PAD space coordinates is performed based on the pointing device. As shown in FIG. 2, the measuring step of the spatial coordinates of the PAD includes: Step S201: Calculate a distance of at least three pointing devices to the PAD.

As shown in FIG. 3, the position of the PAD and the pointing device is shown. In this embodiment, the spatial coordinates of the three pointing devices are a (Xa, Ya, Za), b (Xb, Yb, Zb), and c (Xc), respectively. , Yc, Zc), wireless transceiver modules such as infrared, Bluetooth, WIFI or ultrasonic are installed on the three fixed point devices. Correspondingly, a corresponding wireless transceiver module is also installed in the PAD. The distance of signal transmission can be calculated according to the degree of attenuation of wireless signal transmission Its

For example, according to the received signal strength indicator (RSSI, Received Signal Strength Indicator) formula P _R = P _T /S ⁿ , the distance between the above three fixed point devices and the PAD can be separately calculated.

S _a ,

€€ c S _b and S _c . Wherein, P _R represents the reception power receiving wireless _signals, Ρ τ represents the emission power of the sender radio signal, S represents the distance between the wireless signal transmitting and receiving means

: S. 【

From η, the propagation factor is €€ C, and the value of η in the air can be 3.

s s S

Step S202: Calculate the spatial coordinates of the PAD according to the above result and the spatial coordinates of the above three pointing devices.

Assuming that the spatial coordinates of the PAD are (X, Υ, Ζ), then the following formula can be derived according to the projection and the Pythagorean rule:

,

S _b = (x - X _b ) ² + (Y - Y _b f + (Z - z _b f , and

From the above three sets of calculations, the expression of the spatial coordinates (Χ, Υ, Ζ) of the PAD can be derived as follows:

€ ₂ .g

3⁄41

The calculation of this step can be calculated by the PAD or by the pointing device. The parameters required to calculate the signal transmission distance and the parameters required to calculate the PAD space coordinates can be exchanged through the previously established wireless connection.

The calculation of the PAD coordinates can also be implemented by other positioning techniques, such as a camera set on a roof or a higher position to acquire a global image including the pointing device and the PAD, and image the position of the PAD for image positioning. In addition, the image acquired by one camera can obtain the projection of each shared device of horizontal projection, and the spatial coordinates of the PAD can be calculated by two or more cameras.

Step 203: Add the space coordinate to the attribute list corresponding to the PAD stored by the pointing device, and share the attribute list with all shared devices in the network, so that the spatial coordinates of each shared device in the network are Known by other devices.

Step S30: Determine, according to the horizontal coordinate of the other shared device in the network, the horizontal plane direction of the other shared devices with respect to the PAD, centering on the PAD.

Wherein, the PAD is provided with a direction sensor, such as a geomagnetic sensor, and the spatial directions of the other shared devices determined are relatively unchanged, so that regardless of how the PAD rotates the screen in the horizontal plane, due to the presence of the direction sensor, PAD can correctly calibrate the direction of other shared devices.

As shown in FIG. 3, taking the PAD space coordinate as the origin, the coordinate coordinates of other shared devices relative to the PAD are obtained by coordinate transformation, and a direction is set as a reference direction, such as north. Then, based on the obtained spatial coordinates, the angle at which the respective shared devices in the horizontal plane take the PAD as an origin is determined.

Wherein, when the coordinate coordinates of the spatial coordinates of each shared device are converted, the spatial coordinates (Χ, Υ, Ζ) of the PAD are taken as the origin, and the spatial coordinates are (the coordinates of the shared device of XYZ with respect to the PAD transformation are (ΧΛΥΛΖ ^ ) , where Xi ^ Xi- X; Yi' =Yi- Y; ZJ ^ ZJ- Z, and then the above angle can be calculated according to the coordinates and the trigonometric function. It can be seen that the above-mentioned spatial coordinates and the angle calculated according to the above are independent of the PAD orientation, that is, when the PAD is rotated by the horizontal plane, when positioning for each shared device, the positioning is always based on the spatial coordinates, that is, does not follow The rotation of the PAD screen changes, so that when the selected object is determined by the finger in the PAD linear touch trajectory, regardless of how the PAD screen is placed, the linear touch trajectory always points to the shared device as the selected object. be chosen.

In addition, for the calculation of the above angles, each shared device can be projected onto a horizontal plane to perform the above calculation of the angle, and the touch trajectory of the user on the PAD described later is also projected onto the horizontal plane.

Step S40: The user's finger slides in a straight line on the PAD touch screen. Since the above-mentioned direction sensor is built in the PAD, it can determine the direction in which the user's linear touch track is projected in the horizontal plane according to the reference direction of the direction sensor calibration ( Through this PAD planar projection, this technique is a well-known technique, so the technology will not be described again).

Step S50: On the horizontal plane of the projection, the shared device that is matched in the direction indicated by the determined touch track is used as the shared device selected by the user, that is, the selected object, and the file is transmitted to the selected shared object.

For example, if the user clicks on a file displayed by the PAD (indicating that the file is selected) and keeps the touch state, and then quickly slides the finger toward the computer direction, the PAD determines the direction in the direction according to the direction of the touch track of the fast sliding finger. The computer serves as the selected object and sends the file to the computer. In order to distinguish whether the sliding finger corresponds to moving the file within the PAD, or if the file is to be sent out, the speed of the finger sliding can be set. When a certain speed is reached (ie, the above-mentioned quick sliding finger), it is considered to be The selected file is sent out, otherwise it is only regarded as the file selected by the mobile within the PAD.

In addition, when the user clicks on a file and keeps the touch state, the icons of the respective shared devices are separately displayed on the PAD touch screen at the positions of the respective angles calculated above, so that the user can visualize the operation. The selected file may be centered on the selected file, and the shared device is displayed around the file in conjunction with the angle, preferably around the PAD screen. When the touch slide ends, hide the display again. The icons of the above respective shared devices are shown.

In addition, in order to increase fault tolerance, the touch trajectory may have a certain angular deviation, and the angular deviation may be adjusted according to an angle formed by a shared device in an adjacent direction. As shown in FIG. 4, the MN is the first touch track, the M point is the selected file, the IPAD and the TV direction are adjacent to each other, and the angle deviation is set larger, and the computer and the mobile phone are adjacent to each other. If the size is small, the angular deviation setting is small, or the shared device in the nearest direction in the direction indicated by the touch track is selected as the selected object. In order to improve the accuracy of the selection, different touch trajectories are further set according to the distance from the computer to the PAD, that is, the selection area is set with M as a starting point, and the selection area is divided into different sections, which is divided in this embodiment. 8 intervals, in order to further improve the accuracy of the selection, the number of intervals can be expanded to 16. When the end point of the touch track starting with M (ie, the terminating contact) is arc A or any point nearby, it indicates that the selected object is a computer.

In addition, it should be additionally noted that when there are more than two icons that are the same or similar to the direction of the touch track, the user needs to manually select to increase the accuracy of the operation. For example, as shown in FIG. 4, M-E is the second touch trajectory, and E point is the end point of the second touch trajectory. Since there are 2 devices in the direction and two icons are displayed, when the user just moves the finger to generate the direction (the moving track is not complete), that is, the initial moving track, other icons that obviously do not match the direction are hidden, and only the display is displayed. The computer icon and the mobile phone icon in the direction, in order to distinguish the two icons, can be set at different distances from the starting point of the trajectory as shown in Fig. 4, so that when the touch point terminal E is located at the computer icon or the mobile phone icon, the corresponding one is determined as the determined Select the object. The following describes the system for determining the shared device for multi-screen sharing and the system involved in the file transmission method. As shown in FIG. 5, the system includes:

The spatial coordinate receiving unit 1 1 is configured to receive the spatial coordinates of the current shared device and other shared devices measured by the pointing device.

The coordinate system conversion unit 12 is connected to the spatial coordinate receiving unit 11 for performing coordinate system conversion on the spatial coordinates of the other shared device by using the spatial coordinates of the current shared device as an origin to determine that other shared devices are in a horizontal plane with respect to the current shared device. The direction. The storage unit 18 is connected to the coordinate system conversion unit 12 for storing the spatial coordinates of all the shared devices after the conversion.

In addition, the storage unit 18 is further configured to store the model, device icon and IP address of all shared devices.

The projection unit 13 is connected to the coordinate system conversion unit 12 for projecting all the shared devices onto the horizontal plane according to the spatial coordinates, and determining the directions in which the other shared devices are projected on the horizontal plane with respect to the current shared device.

The touch track acquisition unit 14 is configured to collect user touch commands.

The projection unit 13 is also coupled to the touch track acquisition unit 14 for projecting the touch track to a horizontal plane.

A direction sensor 15, connected to the projection unit 13, is used to determine the reference direction of the currently shared device. Specifically, regardless of how the current shared device rotates the screen in the horizontal plane, the spatial directions of the other shared devices and the user touch trajectory determined are relatively unchanged.

The shared device identification unit 16, which is coupled to the projection unit 13, is configured to determine the matched shared device in the direction indicated by the touch track.

The shared device identification unit 16 includes a touch speed determination module, a touch track fault tolerance module, and a touch track calculation module (not shown).

The touch speed determination module is configured to determine a user touch sliding speed. Specifically, it is considered to be used to select other sharing devices only when the touch sliding speed reaches the preset speed, and the touch track starting point corresponds to the selected file.

The touch track fault tolerance module is used to correct the angle of the touch track. Specifically, when there is an angular deviation between the touch track and the shared device, the touch track end point is regarded as the matched shared device when it is any point on the arc.

The touch track calculation module is configured to calculate the distance between the touch track end point and the shared device, and trigger the display unit when the distance between the two shared devices is the same or similar to the touch track end point distance.

Display units (not shown) are respectively connected to the touch track collection unit 14 and the shared device identification unit 16, and are configured to trigger display of other shared devices according to the touch point. Standard.

The shared file transfer unit 17 is connected to the shared device identification unit 16 for file transfer to the determined matching shared device.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. In general, any modifications, equivalent substitutions, improvements, etc., which are included in the spirit and principles of the present invention, should be included in the present invention. Within the scope of protection of the invention.

Claims

Claim

A method for determining a shared device, comprising the steps of:

The method according to claim 1, wherein the step A comprises: determining a spatial coordinate of the current shared device according to the strength of the at least three shared devices having the spatial coordinates and the current shared device communication signal;

The method according to claim 1, wherein the step A comprises: acquiring image information including at least three shared devices having spatial coordinates and the current shared device;

The method according to claim 1, wherein the determining, by the step C, that the shared device matched in the direction indicated by the touch track comprises:

The method according to claim 4, further comprising: after step A, on the touch screen of the current shared device, the icon of each of the other shared devices is in the touch according to the determined direction of each shared device Displayed in the direction corresponding to the beginning of the track.

The method according to claim 5, further comprising: Determine the direction indicated based on the initial touch trajectory,

Hide icons for each shared device in other directions.

7. The method according to claim 6, further comprising: when there are more than two matching shared devices in the direction indicated by the touch track,

Only the icon of the matched shared device is displayed, and the shared device corresponding to the icon selected by the touch point is a matching shared device.

8. A file transfer method for a shared device, comprising the steps of:

B: determining a direction in which the touch track on the current shared device is projected in a horizontal plane; C: determining a shared device that matches the direction indicated by the touch track, and transmitting the selected file corresponding to the start point of the touch track to the matched Share the device.

The method according to claim 8, wherein the determining, by the step C, that the shared device matched in the direction indicated by the touch track comprises:

10. The method according to claim 9, further comprising:

A system for implementing a file transfer method of a shared device, comprising: a spatial coordinate receiving unit, configured to receive spatial coordinates of each shared device;

a coordinate system conversion unit, configured to determine, according to spatial coordinates of each shared device, various directions of the other shared device in a horizontal plane with respect to the current shared device;

a projection unit, configured to determine a projection direction of the touch track in a horizontal plane; a shared device identification unit, configured to determine, according to the direction indicated by the horizontal projection of the touch track on the current shared device screen, the matched shared device;

A shared file transfer unit that transfers the selected file to the matched shared device.