CN104601809A - Handwriting unlocking method based on smart touch screen mobile phone - Google Patents

Abstract

The invention provides a handwriting unlocking method based on a smart touch screen mobile phone; firstly, the scheme is provided on the basis of the difference of people's handwritings; and secondly, the scheme is realized on the basis of the present fashionable smart touch screen mobile phone on the market. Before using the unlocking scheme, a user needs to input characters or handwriting patterns for unlocking in accordance with his own handwriting habit; when the user wakes up his phone and the phone enters an unlocking interface, the touch screen and the display screen are started; at this moment, a certain area of the screen prompts the user to input preset characters or patterns, the user inputs the fixed characters or patterns with his finger or a handwriting pen according to the his own handwriting habit and the touch screen outputs a digital matrix of representing the handwriting coordinates according to the handwriting; the matrix is subjected to subtraction and modular multiplication and the like in combination with the preset pattern matrix; if the result is within the allowed error range, the handwriting is considered to be consistent and the CPU controls the unlocking; therefore, the anti-breaking capability of users' mobile phones is improved.

Description

A kind of person's handwriting unlock method based on intelligent touch-screen mobile phone

Technical field

The invention belongs to smart mobile phone and unlock field safely, design a kind of unlock method of intelligent touch-screen mobile phone.

Background technology

Current intelligent touch-screen mobile phone generally adopts Android or IOS; the integrated at present unblock scheme of these systems is generally the modes such as slip, simple pattern, numerical ciphers; as shown in Figure 2; but these unblock schemes are easy to be cracked; affect the information security of cellphone subscriber; therefore, need a kind of unblock scheme of more practical simple and fast to protect the information security of user.

Summary of the invention

This scheme of the invention object unlocks scheme by the written handwriting mobile phone creating a kind of Nover practical that varies with each individual, thus improve the anti-ability of cracking of user mobile phone.

Technical solution of the present invention is as follows:

Based on a person's handwriting unlock method for intelligent touch-screen mobile phone, its special character is: comprise the following steps:

1] person's handwriting presetting unblock in application according to individual writing style is unlocked on person's handwriting upper strata;

When 2] unlocking, wake mobile phone up, enter unlock interface, open touch-screen and display screen, enter and unlock pattern input area;

3] input unlocks person's handwriting;

4] touch-screen response inputs, reports unblock critical event, and the unblock person's handwriting of input is converted into coordinate information;

5] upper strata unlocks application and monitors reported event, and the coordinate information unlocking person's handwriting is converted into character matrix;

6] person's handwriting of echo user input;

Whether the person's handwriting 7] utilizing internal algorithm verified users to input conforms to the person's handwriting of presetting unblock; If not, prompting user inputs illegal, need again input; If so, unlock screen.

Above-mentioned steps 7] method of carrying out person's handwriting verification is specially:

Upper strata unlocks application and exports the character matrix representing person's handwriting coordinate according to person's handwriting, and the pattern matrix of this matrix and setting is carried out subtraction, asked modular arithmetic, and modulus value thinks that in the error range allowed result is consistent, and CPU controls to unlock.

In step 5] and step 6] between also comprise step to unlocking pattern preliminary check, if not, ignore and enter dormancy; If so, step 6 is performed].

The method of above-mentioned preliminary check is: upper strata unlocks application and adds up the quantity that the element value of input area character matrix is 1, if the ratio of element 1 is less than certain value, then thinks false triggering, ignores the critical event this time reported.

Compared with prior art, advantage is in the present invention:

The present invention by written handwriting vary with each individual create a kind of Nover practical mobile phone unlock scheme, user uses the symbols such as my habitual handwriting Chinese character in specific region, export the character matrix that represents person's handwriting after touch-screen perception to decode computing to CPU, and contrast with default person's handwriting, result unanimously unlocks mobile phone afterwards, improves the anti-ability of cracking of user mobile phone.

Accompanying drawing explanation

Fig. 1 is that conventional slip unlocks schematic diagram;

Fig. 2 is that conventional slip unlocks schematic diagram;

Fig. 3 is that person's handwriting unlocks schematic diagram;

Fig. 4 is the inventive method flow chart.

Embodiment

First the program is there are differences proposition based on everyone written handwriting, and secondly scheme realizes based on the intelligent touch-screen mobile phone that Vehicles Collected from Market is popular.

User is before this unblock scheme of use, and need to unlock on upper strata according to the person's handwriting that individual writing style input unlocks in application, its flow chart as shown in Figure 4.

After user triggers unlock interface by power key, display screen specific region can point out user to input unblock person's handwriting, user inputs according to predetermined person's handwriting, touch-screen response user inputs and reports upper layer application has person's handwriting to input critical event, and upper strata is read person's handwriting coordinate after listening to this event and carried out preliminary check.

The object of preliminary check is overdue bright screen curtain under having this situation of mistaken touch, upper strata unlocks application and identifies this situation and ignore after user mobile phone is squeezed; The method of preliminary check has a lot, enumerates wherein a kind of as follows:

Upper strata unlocks application and adds up the quantity of the element 1 of input area character matrix, if the ratio of element 1 is less than 2% (all the other elements are 0), then thinks false triggering, ignores the critical event this time reported.

Be judged to be user misoperation after preliminary check is invalid, after verification effectively, echo user inputted person's handwriting, as shown in Figure 3, person's handwriting verification is carried out in the application of upper strata unblock simultaneously.

The realization of method of calibration:

In screen specific region, according to the output characteristic of touch-screen, the specific two-dimensional matrix that this region can describe with coordinate with one is stated, this matrix depends on the resolution of touch-screen and exports with the form of node, resolution as touch-screen 40x40 can use the matrix description of 4x4, namely differentiates some formation 1 node for every 10.In the absence of a touch, this matrix is null matrix, once detect that touch occurs, the matrix element at its coordinate place corresponding is assigned 1.For 4x4 matrix, before not touching, this matrix is:

$\left|\begin{array}{cccc}0& 0& 0& 0\\ 0& 0& 0& 0\\ 0& 0& 0& 0\\ 0& 0& 0& 0\end{array}\right|$

If upper/lower positions has drawn an irregular broken line in the zone, as Fig. 1.

Then this matrix is:

$\left|\begin{array}{cccc}0& 0& 0& 0\\ 0& 0& 0& 1\\ 1& 1& 1& 0\\ 0& 0& 0& 0\end{array}\right|$

Above-mentioned matrix deducts presetting rectilinear matrix, obtains comparing result matrix

$\left|\begin{array}{cccc}0& 0& 0& 0\\ 0& 0& 0& 1\\ 1& 1& 1& 0\\ 0& 0& 0& 0\end{array}\right|-\left|\begin{array}{cccc}0& 0& 0& 0\\ 0& 0& 0& 0\\ 1& 1& 1& 1\\ 0& 0& 0& 0\end{array}\right|=\left|\begin{array}{cccc}0& 0& 0& 0\\ 0& 0& 0& 1\\ 0& 0& 0& 0\\ 0& 0& 0& 0\end{array}\right|$

By asking mould to matrix of consequence, there is comparatively big error with the modulus value " 0 " of expection, then think that input is illegal, screen prompt user re-enter, until input is the straight line of basic standard.

The program mainly describes this unblock scheme of handwriting, and the program is not limited to this series products of smart mobile phone, is applicable to all electronic equipments with touch-screen; Specific algorithm simultaneously in scheme realizes being only wherein a kind of algorithm, and has a variety of based on the algorithm of the program.Therefore patent of the present invention unlocks this scheme to mobile phone person's handwriting and protects.

Claims (4)

1., based on a person's handwriting unlock method for intelligent touch-screen mobile phone, it is characterized in that: comprise the following steps:

1] person's handwriting presetting unblock in application according to individual writing style is unlocked on person's handwriting upper strata;

When 2] unlocking, wake mobile phone up, enter unlock interface, open touch-screen and display screen, enter and unlock pattern input area;

3] input unlocks person's handwriting;

4] touch-screen response inputs, reports unblock critical event, and the unblock person's handwriting of input is converted into coordinate information;

5] upper strata unlocks application and monitors reported event, and the coordinate information unlocking person's handwriting is converted into character matrix;

6] person's handwriting of echo user input;

Whether the person's handwriting 7] utilizing internal algorithm verified users to input conforms to the person's handwriting of presetting unblock; If not, prompting user inputs illegal, need again input; If so, unlock screen.

2. the person's handwriting unlock method based on intelligent touch-screen mobile phone according to claim 1, is characterized in that: step 7] method of carrying out person's handwriting verification is specially:

Upper strata unlocks application and exports the character matrix representing person's handwriting coordinate according to person's handwriting, and the pattern matrix of this matrix and setting is carried out subtraction, asked modular arithmetic, and modulus value thinks that in the error range allowed result is consistent, and CPU controls to unlock.

3. the person's handwriting unlock method based on intelligent touch-screen mobile phone according to claim 1 and 2, is characterized in that: in step 5] and step 6] between also comprise step to unlocking pattern preliminary check, if not, ignore and enter dormancy; If so, step 6 is performed].

4. the person's handwriting unlock method based on intelligent touch-screen mobile phone according to claim 3, is characterized in that:

The method of preliminary check is: upper strata unlocks application and adds up the quantity that the element value of input area character matrix is 1, if the ratio of element 1 is less than certain value, then thinks false triggering, ignores the critical event this time reported.