WO2013123695A1

WO2013123695A1 - Method for determining sharing device, method and system for file transmission

Info

Publication number: WO2013123695A1
Application number: PCT/CN2012/073732
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: CN103257817A

Abstract

Provided in the present invention are a method for determining a sharing device and a method for file transmission, comprising the steps of: A: determining the directions of sharing devices on a horizontal projection 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 the sharing device matched on the direction pointed to by the touch track, and transmitting to the sharing device matched a selected file corresponding to the starting point of the touch track. Also provided in the present invention is a system implementing the method for file transmission for the sharing device. Convenient operation is implemented by using different touch tracks to implement determination of a shared object and transmission of the shared file. When transmitting a selected object or the selected file, only sliding thereto on a screen of the current sharing device is required, thus conserving operation time.

Description

Method and system for determining shared device and technology

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 and system for determining a shared device that is applied to a multi-screen sharing device, and by using different touch trajectories to determine a shared object and transmit a shared file, thereby implementing an operation for increasing operations. Convenience.

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

A: determining the distances of the respective shared devices in the horizontal plane from the current shared device, and the distance from each shared device to the current shared device;

B: determining the direction of the touch trajectory on the current shared device in the horizontal plane and the length of the touch trajectory;

C: A shared device at a distance corresponding to the length of the touch track in the direction indicated by the touch track is determined as a shared device to be communicated.

From above, the shared object is determined by different touch trajectories, and the operation is convenient. When you select an object, you only need to slide it a certain distance on the screen of the currently shared device. The length of the sliding rule can be used to identify the receiver at different distances from the currently shared device in the direction, thereby saving operation 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 the other shared devices, the directions in which the respective shared devices are projected on the horizontal plane with respect to the current shared device and the distance 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, the distance from each shared device to the current shared device includes: a spatial distance of each shared device relative to the current shared device or a distance projected from the horizontal plane to the current shared device. From above, the distance can be calculated in different ways depending on the needs of the calculation.

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 above, the icons of other shared devices are visually displayed, which more intuitively displays the recipient's shared destination that the user can send, thereby facilitating the operation.

The icon of the other shared device is displayed at a distance corresponding to the start point of the touch track according to different distances of the shared device to the current shared device; and the shared device matched in the direction indicated by the touch track is determined in step C. The method further includes: using the shared device corresponding to the icon of the shared device that ends the endpoint to the touch track as the matched shared device.

From above, there are multiple sharing devices in the direction indicated by the touch track, and the icon of the shared device is visually displayed, and the distance between the endpoint and the icon of the shared device is ended by the touch track to determine the selected object, thereby improving the accuracy of the selection.

The invention also provides a file transmission method of a shared device, comprising the steps of:

A: the distance from each shared device to the current shared device;

C: determining a sharing device at a distance corresponding to the length of the touch track in the direction indicated by the touch track, and transmitting the selected file corresponding to the start point of the touch track to the matching shared device.

From above, the shared object is determined and the shared file is transmitted through different touch trajectories, thereby realizing easy operation. When selecting objects and selecting files for transmission, simply slide them on the screen of the currently shared device to save operating time.

From above, by judging the shared device with the smallest direction error in the direction of the touch track Increase fault tolerance.

Optionally, the distance from each shared device to the current shared device includes: a spatial distance of each shared device relative to the current shared device or a distance projected from the horizontal plane to the current shared device horizontal projection.

From above, the distance can be calculated in different ways depending on the needs of the calculation.

The present invention also provides a system for implementing a method for determining a shared device and a file transmission method for multi-screen sharing, including:

a space coordinate receiving unit, configured to receive spatial coordinates of the shared device;

a coordinate system conversion unit, configured to determine various directions and large distances 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 and a distance of the touch track in a horizontal plane; a shared device identification unit, configured to determine a match according to a touch track length in a direction indicated by a horizontal plane projection on the current shared device screen according to the touch track Shared device; a shared file transfer unit for transferring selected files to the matched shared device. From above, the shared object is determined by different touch trajectories, and the operation is convenient. When selecting an object, it is only necessary to slide a certain distance on the screen of the currently shared device, and the length of the sliding rule can identify the receiver at a different distance from the currently shared device in the direction, and perform file transmission, saving 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 an enlarged schematic view of a section 2 of the display of the PAD of the present invention;

Figure 6 is a schematic structural view 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. In this example, 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. As shown in Figure 1, the steps are as follows:

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.

FIG. 3 is a schematic diagram showing the position of the PAD and the pointing device. In this embodiment, the spatial coordinates of the three pointing devices are a ( Xa, Ya, Za), b ( Xb, Yb, Zb ) and c, respectively. (Xc, 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 the signal transmission can be calculated according to the degree of attenuation of the wireless signal transmission. For example, according to the AAA Received Signal Strength Indicator (RSSI) formula P _R = P _T /S ⁿ , the above three fixed point devices can be respectively calculated. The distances S _a , S _b and S _c from the PAD. Wherein P _R represents the received power of the wireless signal of the receiver, _τ represents the transmission power of the wireless signal of the sender, S represents the distance between the wireless signal transmitting and receiving devices, η is the propagation factor, and the value of η in the air may be 3.

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 _a =^l(xx _a ) ² +(YY _a ) ² +(zz _a ) ² ,

S _h = (XX _b ) ² +(YY _b ) ² +(ZZ _b ) ² , and

.

The expressions of the spatial coordinates (Χ, Υ, Ζ) of the PAD can be derived from the above three sets of calculations.

For: , ^2_ . among them,

― one one one one i3

A: ~ one 3⁄4 ^— ^2 i "—

― S _fi ― S _c — i - 3⁄42丄― 1⁄23;

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 each of the other shared devices relative 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 is swiped, it is based on the sliding trajectory The sliding direction is determined, and the shared device icon in the other direction is hidden, and only the shared device icon in the direction is retained. When the touch slide is finished, the displayed icons of the shared devices are hidden.

When there are two or more shared devices at the same angle, the distance from the PAD is further calculated according to the coordinates of each shared device (or the coordinates projected by the horizontal plane), and the length value of the touch track is used (ie, the touch track) Ending the endpoint's distance from the starting endpoint) Identifying shared devices of different distances corresponding to different length values. At this time, if the shared device of the same angle performs the above display, different icons are displayed at different positions corresponding to the different length values, thereby facilitating user operation.

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 Figure 4, the PA point is a point-selected file. The IPAD and TV directions are larger. The angle deviation is set larger. The angle between the computer and the mobile phone is smaller. Smaller, or a shared device in the nearest direction in the direction indicated by the touch track as the selected object. In order to improve the accuracy of the selection, the length of the touch track is further set according to the distance from the computer and the mobile phone to the PAD, that is, the end point of the touch track with the M as the starting point (ie, the terminating contact) is the arc A or When any point is nearby, it indicates that the selected object is a computer, and when the end point is arc B or any nearby point, it indicates that the selected object is a mobile phone.

It is also possible to calculate the distance between the end point of the touch track and the icon of the computer and the mobile phone displayed on the PAD, and select the shortest distance as the selected object, as shown in Fig. 5 is an enlarged view of the interval 2 in Fig. 4, the touch point of the computer icon center point The distance from the end point N is d2, and the distance from the center point of the mobile phone icon to N is dl, as shown in the figure d2 < dl, therefore, the computer icon is selected.

In addition, it should be additionally noted that when there is a case where the distance between the plurality of icons and the touch track end point N is the same or similar, the user needs to perform manual selection to increase the accuracy of the selection. Specifically, if the distance threshold is set in advance, if there is a distance between two or more icons and N is equal to or smaller than the threshold, the PAD pops up a dialog menu, and displays an icon with a distance less than the threshold. Select by the user touching the icon. The following describes the selected object recognition and recognition system for multi-screen sharing, as shown in the figure.

As shown in 6, the identification 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. Direction and distance.

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 to the horizontal plane according to the spatial coordinates, to determine the directions in which the respective shared devices are projected on the horizontal plane with respect to the current shared device, and the respective shared devices to the current sharing. The distance of the device.

The touch track acquisition unit 14 is configured to collect user touch commands, including a touch direction and a touch length.

The projection unit 13 is also coupled to the touch track acquisition unit 14 for projecting the touch track onto 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, coupled to the projection unit 13 and the touch track acquisition unit 14, is for determining a shared device that matches the length of the touch track 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, it is considered to be the matched shared device when the touch track end point is at any point on the arc.

When there are two or more shared devices in the same angle, the touch track calculation module is used to calculate the touch track length, and the shared devices according to different length values are matched. In addition, it is also used to calculate the distance between the end points of the touch track and the two or more shared devices, and the closest to the end point of the touch track is the matched shared device.

a display unit (not shown) is respectively connected to the touch track collection unit 14 and the shared device identification unit 16 for triggering display of icons of other shared devices according to the touch point; and sharing the two ends of the touch track end points respectively When the distances of the devices are the same, only the icons of the two or more shared devices with the same distance are triggered.

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:

A shared device that determines a direction with the smallest direction error indicated by the touch track is used as the matched shared device.

The method according to claim 4, wherein the distances of the respective shared devices to the current shared device include: The spatial distance of each shared device relative to the current shared device or the distance projected on the horizontal plane to the current shared device.

The method according to claim 4 or 5, wherein, after the step A, the method further comprises: 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 Displayed in the direction corresponding to the beginning of the touch track.

The method according to claim 6, wherein the icons of the other shared devices are displayed at a distance corresponding to the start point of the touch track according to different distances of the shared devices to the current shared device;

The step of determining that the shared device in the direction indicated by the touch track further comprises: using the shared device corresponding to the icon of the shared device that ends the endpoint to the touch track as the matched shared device.

A file transfer method for a shared device, comprising the steps of: A: a distance from each shared device to a current shared 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:

The method according to claim 9, wherein the distances of the respective shared devices to the current shared device include:

The spatial distance of each shared device relative to the current shared device or the distance projected on the horizontal plane to the current shared device.

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 converting unit, configured to determine, according to spatial coordinates of each shared device, various directions and distances of other shared devices in a horizontal plane with respect to the current shared device;

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

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