CN105700744A - Input point positioning system and method for touch screen of mobile terminal, and mobile terminal - Google Patents

Abstract

The present invention relates to an input point positioning system and method for a touch screen of a mobile terminal, and a mobile terminal. The positioning system comprises a ranging device and a coordinate acquisition apparatus. The ranging apparatus comprises two probes, and the ranging apparatus measures input distance data between each probe and an input point on a touch screen of the mobile terminal, wherein the input point is a point that is applied to the touch screen to trigger the touch screen; and the coordinate acquisition apparatus obtains input point coordinate data of the input point on the touch screen according to the input distance data and relative position data of the probe. By using the positioning system provided by the present invention, the user can determine a relative position of a finger and a screen of a mobile phone without the need for looking down for the screen and the finger, thereby ensuring precision of the input point.

Description

For the input point alignment system of touch screen of mobile terminal, method and mobile terminal

Technical field

The present invention relates to the input point alignment system of the touch screen for mobile terminal, localization method and adopt the mobile terminal of said method and system。

Background technology

The technology being amplified to by mobile phone picture on more giant-screen by mobile phone projection, bluetooth connection, wifi, the mode such as wired has existed for many years, but application occasion, crowd are not extensive, little by other screens, this function of Projection Display mobile phone screen, majority of case waits, for seeing a film, the situation not needing operating handset。The main cause causing this situation is: after mobile phone picture is thrown in, time human eye is look at giant-screen, it is difficult to mobile phone is precisely operated。After such as mobile phone picture projection, before point opens certain connection, have to bow the mobile phone screen and finger of seeing in hands, determine that finger is above this coupled position, finger point touching screen, thus ensureing to click accurately, the conventional operations of intelligent touch-screen mobile phone such as input word, clickable icon, drag target are caused very burden by this。

Summary of the invention

In order to solve the problems referred to above that prior art exists, the invention provides the input point alignment system of a kind of touch screen for mobile terminal, method and mobile terminal。

An embodiment provides the input point alignment system of a kind of touch screen for mobile terminal, including: range unit and coordinate acquiring device, range unit, pop one's head in including at least two, the transmission range data between the input point on the touch screen of each probe and described mobile terminal measured by described range unit, and wherein said input point is the point acting on and triggering described touch screen on described touch screen；Coordinate acquiring device, obtains described input point input point coordinate data on described touch screen according to the station-keeping data of described transmission range data, described probe。

Further, described coordinate acquiring device is additionally operable to receive the transmission range data of described range unit output, obtain the probe distance data between described at least two probe, obtain described at least two probe probe co-ordinate data on described touch screen, obtain described input point coordinate data according to described transmission range data, described probe distance data and described probe co-ordinate data。

Further, also include correcting unit, obtain the reference coordinate data of at least one input reference point, obtain the input point coordinate data of at least one input reference point described that described coordinate acquiring device obtains, reference coordinate data according at least one input reference point obtain correction parameter with at least one input point coordinate data inputting reference point described, utilize described correction parameter that the input point coordinate data of described input point is corrected。

Further, also include identifier display, for the input point coordinate data according to described input point, in described touch screen display for indicating the mark of described input point。

One embodiment of the present of invention additionally provides a kind of mobile terminal, including the input point alignment system of the touch screen for mobile terminal recited above。

One embodiment of the present of invention additionally provides a kind of localization method for above-mentioned alignment system, comprises the following steps:

Obtaining the transmission range data between the input point of each probe of range unit and the touch screen of described mobile terminal, wherein said input point is the point acting on and triggering described touch screen on described touch screen；

Obtain the station-keeping data of each probe of range unit；

Described input point input point coordinate data on described touch screen is obtained according to described transmission range data and described station-keeping data。

Further, each probe of described acquisition range unit and the station-keeping data of described touch screen include:

Obtain the probe distance data between described at least two probe；

Obtain described at least two probe probe co-ordinate data on described touch screen；

Described input point coordinate data is obtained according to described transmission range data, described probe distance data and described probe co-ordinate data。

Further, before the transmission range data between each probe and the touch screen of described mobile terminal of described acquisition range unit, described method also includes:

Obtain the reference coordinate data of at least one input reference point；

Obtain the input point coordinate data of at least one input reference point described that described coordinate acquiring device obtains；And

Reference coordinate data according at least one input reference point obtain correction parameter with at least one input point coordinate data inputting reference point described；

Described method described obtain described input point input point coordinate data on described touch screen according to described transmission range data and described station-keeping data after, also include:

Utilize described correction parameter that the input point coordinate data of described input point is corrected。

Beneficial effect:

The input point alignment system of the touch screen for mobile terminal of the present invention, by calculating input point coordinate on mobile terminal touch screen, obtain the relative position of input point and touch screen, when touch screen is projected on other screens, user need not bow screen and the finger of seeing the mobile phone, namely can determine that the relative position of finger and screen, it is ensured that the accuracy of input point。

Accompanying drawing explanation

Fig. 1 is the structural representation of input point alignment system in one embodiment of the invention；And

Fig. 2 is the schematic diagram of input point coordinate data computational methods in one embodiment of the invention。

Detailed description of the invention

For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described。

As shown in Figure 1, present embodiments provide the input point alignment system of a kind of touch screen for mobile terminal, including range unit 101 and coordinate acquiring device 102, range unit 101 includes probe A and probe B, the transmission range data a between input point on the touch screen of range unit 101 measuring probe A and mobile terminal, and the transmission range data b between the input point on the touch screen of probe B and mobile terminal, wherein input point is act on the point of sensing touch screen on touch screen；Coordinate acquiring device 102 obtains input point input point coordinate data (X, Y) on the touchscreen according to the station-keeping data of transmission range data c, probe。

Selecting as one, the station-keeping data of probe refers to the probe distance data between probe and probe probe co-ordinate data on the touchscreen。

Select as one, coordinate acquiring device 102 is for receiving transmission range data a and the b of range unit 101 output, obtain the probe distance data c between probe A and probe B, obtain probe A and probe B probe co-ordinate data (x1 on the touchscreen, y1), input point coordinate data (X, Y) is obtained according to transmission range data a and b, probe distance data c and probe co-ordinate data (x1, y1)。

With reference to Fig. 2, the computational methods of input point coordinate data (X, Y) are as follows:

Assuming that in Fig. 2, A, B are probe positions, M is finger position, it is assumed that now A point is the zero of screen, now the coordinate of M be (x, y) AM=a, BM=b, AB=c,

Range unit 101 goes out the length of a, b。C is length between fixing two probes。Equation below is obtained according to right angled triangle formula:

$\left\{\begin{array}{c}{x}^2+y^2=a^2\\ {(c-x)}^2+y^2=b^2\end{array}\right.$

According to above-mentioned equation can in the hope of M coordinate (x, y), but now the coordinate of M be when assume A point be screen coordinate initial point obtain, so the coordinate of actual M point (X, Y) should be X=x+x1, Y=y+y1。

Select as one, input point alignment system also includes correcting unit 103, correcting unit 103 is for obtaining the reference coordinate data of at least one input reference point, obtain the input point coordinate data of at least one input reference point that coordinate acquiring device 102 obtains, reference coordinate data according at least one input reference point obtain correction parameter with at least one input point coordinate data inputting reference point, utilize correction parameter that the input point coordinate data of described input point is corrected。

The error that the factors such as the finger thickness due to each user are brought, needs when user uses first to be corrected。Concrete bearing calibration is as follows:

Touch screen display one input reference point, coordinate (the X1 of this input reference point, Y1) being that system is known, user clicks input reference point, and system obtains the input point coordinate data (X2 of input reference point according to said method, Y2), by the input point coordinate data (X2, Y2) of the actual coordinate (X1, Y1) of input reference point with input reference point is compared, correction parameter (x ', y ') can be obtained。After obtaining correction parameter, during user's any position, side input on the touchscreen, the input point coordinate data of this input point is (X1+x ', Y1+y '), is the input point coordinate data after correction。

Selecting as one, it is possible to arrange multiple input reference point, the input point coordinate data after being corrected by multiple input reference points is more accurate, and concrete grammar is as follows:

Such as adopt 5 input reference points, screen is divided into 5 regions, it is upper left, lower-left, upper right, bottom right, centre respectively, set an input reference point respectively in each area, be corresponding in turn to as (X3, Y3), (X4, Y4), (X5, Y5), (X6, Y6), (X7, Y7)。Before first use, finger clicks on 5 input reference points to user, draws correction parameter (x1 ', y1 '), (x2 ', y2 ') respectively ...。Correction terminate after, when finger is when lower left region, the input point coordinate data after correction be (x+x2 ', y+y2 '), when zone line, the input point coordinate data after correction be (x+x3 ', y+y3 '), make the data in all regions be corrected by that analogy。

Selecting as one, input point alignment system also includes identifier display 104, and identifier display 104 is for the input point coordinate data according to input point, and display is for indicating the mark of input point on the touchscreen。Such as, after input point alignment system obtains input point coordinate data, showing a red point in the corresponding position of touch screen, for identifying the position of input point, red point can move along with the movement of input point。When touch screen projects on other display screens, it is possible to know the position of input point on touch screen according to the position of red point, so need not see the touch screen of mobile terminal, look at other screens and can be carried out the operation of mobile terminal。

Selecting as one, mobile terminal refers to the equipment such as mobile phone, panel computer, notebook computer。

Selecting as one, range unit 101 includes multiple probe, and now the transmission range data between the input on the touch screen of multiple probe and mobile terminal measured by range unit 101。

As one select, range unit 101 adopt ultrasonic distance-measuring sensor, infrared distance sensor, laser sensor or other can be used for range finding sensor。

The present embodiment additionally provides a kind of mobile terminal, including the input point alignment system of the touch screen for mobile terminal recited above。

The present embodiment additionally provides a kind of localization method for above-mentioned alignment system, comprises the following steps:

Obtaining the transmission range data between the input point of each probe of range unit 101 and the touch screen of mobile terminal, wherein input point is the point acting on and triggering described touch screen on touch screen；

Obtain the station-keeping data of each probe of range unit 101；

Input point input point coordinate data on the touchscreen is obtained according to transmission range data and station-keeping data。

Selecting as one, the station-keeping data of each probe and touch screen that obtain range unit 101 includes:

Obtain the probe distance data between two probes；

Obtain two probes probe co-ordinate data on the touchscreen；

Input point coordinate data is obtained according to transmission range data, probe distance data and probe co-ordinate data。

Select as one, before the transmission range data between each probe and the touch screen of described mobile terminal that obtain range unit, also include:

Obtain the reference coordinate data of at least one input reference point；

Obtain the input point coordinate data of at least one input reference point that coordinate acquiring device obtains；And

Reference coordinate data according at least one input reference point obtain correction parameter with at least one input point coordinate data inputting reference point；

Method, after obtain input point input point coordinate data on the touchscreen according to transmission range data and station-keeping data, also includes:

Utilize correction parameter that the input point coordinate data of input point is corrected。

From the foregoing, it will be observed that the input point alignment system of the touch screen for mobile terminal described in the present embodiment and method have the following characteristics that

1, can apply to multiple mobile terminal devices, and may be mounted at inside mobile terminal, it is also possible to the accessory as mobile terminal uses；

2, installing after the mobile terminal of this alignment system is connected with other display equipment, user sees the touch screen of terminal without bowing, and can realize the operation to mobile terminal。Such as can in handbag, in pocket, under desk, in quilt, on automobile all can the various function of easy manipulation mobile terminal, change in the past that everyone bows and sees the situation of screen。

3, coupling by the public display device of mobile phone and public place, it is achieved " carry-on mouse " function, the convenient operation to mobile terminal can be realized whenever and wherever possible。

The present invention is not limited to above-mentioned preferred forms; any those skilled in the art can draw other various forms of products under the enlightenment of the present invention; no matter but in its shape or structure, do any change; every have same or like with the application like technical scheme, all fall within protection scope of the present invention。

Claims (8)

1. the input point alignment system for the touch screen of mobile terminal, it is characterised in that including: range unit and coordinate acquiring device,

Range unit, pops one's head in including at least two, and the transmission range data between the input point on the touch screen of each probe and described mobile terminal measured by described range unit, and wherein said input point is the point acting on and triggering described touch screen on described touch screen；

Coordinate acquiring device, obtains described input point input point coordinate data on described touch screen according to the station-keeping data of described transmission range data, described probe。

2. alignment system according to claim 1, it is characterized in that, described coordinate acquiring device is additionally operable to receive the transmission range data of described range unit output, obtain the probe distance data between described at least two probe, obtain described at least two probe probe co-ordinate data on described touch screen, obtain described input point coordinate data according to described transmission range data, described probe distance data and described probe co-ordinate data。

3. alignment system according to claim 1, it is characterised in that also include:

Correcting unit, obtain the reference coordinate data of at least one input reference point, obtain the input point coordinate data of at least one input reference point described that described coordinate acquiring device obtains, reference coordinate data according at least one input reference point obtain correction parameter with at least one input point coordinate data inputting reference point described, utilize described correction parameter that the input point coordinate data of described input point is corrected。

4. alignment system according to claim 1, it is characterised in that also include identifier display, for the input point coordinate data according to described input point, in described touch screen display for indicating the mark of described input point。

5. a mobile terminal, including the input point alignment system of the touch screen for mobile terminal described in any one in claim 1-4。

6. the localization method of the alignment system being used in claim 1-4 described in any one, it is characterised in that comprise the following steps:

Obtaining the transmission range data between the input point of each probe of range unit and the touch screen of described mobile terminal, wherein said input point is the point acting on and triggering described touch screen on described touch screen；

Obtain the station-keeping data of each probe of range unit；

Described input point input point coordinate data on described touch screen is obtained according to described transmission range data and described station-keeping data。

7. method according to claim 6, it is characterised in that each probe of described acquisition range unit and the station-keeping data of described touch screen include:

Obtain the probe distance data between described at least two probe；

Obtain described at least two probe probe co-ordinate data on described touch screen；

Described input point coordinate data is obtained according to described transmission range data, described probe distance data and described probe co-ordinate data。

8. method according to claim 6, it is characterised in that before the transmission range data between each probe and the touch screen of described mobile terminal of described acquisition range unit, described method also includes:

Obtain the reference coordinate data of at least one input reference point；

Obtain the input point coordinate data of at least one input reference point described that described coordinate acquiring device obtains；And

Reference coordinate data according at least one input reference point obtain correction parameter with at least one input point coordinate data inputting reference point described；

Described method described obtain described input point input point coordinate data on described touch screen according to described transmission range data and described station-keeping data after, also include:

Utilize described correction parameter that the input point coordinate data of described input point is corrected。