CN103324897A - Safety certification method and user terminal based on multi-point touch - Google Patents
Safety certification method and user terminal based on multi-point touch Download PDFInfo
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Abstract
The embodiment of the invention provides a safety certification method and user terminal based on multi-point touch and relates to the field of safety technology. The safety certification method and the user terminal provided by the invention have the advantages that the multi-point touch is fully used, and the safety certification is simplified while the safety of the user terminal is improved. The method comprises the following steps: when the user touches the screen, acquiring the location information of at least two touch points; comparing the location information with pre-stored information, and if the error between the location information and the pre-stored information is within a specified range, removing the screen locking. The embodiment of the invention is used for carrying out safety certification by adopting multi-touch technology.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of safety certifying method based on multi-point touch and user terminal.
Background technology
Multi-point touch (Multi-Touch) is multiple spot on same display interface or multi-user's interactive mode of operation, abandoned the single-point mode of operation of keyboard, mouse.The click that at least two fingers that utilize the screen of Multi-Touch technology can identify the user are done simultaneously, touch-control action, therefore the user can carry out touch operation by both hands or a plurality of finger, such as clicking, double-click, translation, pressing, roll and the different gesture touch screen such as rotation, realize indiscriminately ad. as one wishes controlling.
At present, the Multi-Touch technology normally realizes based on capacitive touch screen (Capacity Touch Panel, CTP), along with the fast development of capacitive touch screen technology, Multi-Touch more and more has been applied to the user terminal field, for example smart mobile phone and panel computer.
In the prior art, the safety certification of user terminal adopts two kinds of methods usually, namely is cipher authentication and pattern authentication.Wherein, cipher authentication is the most traditional authentication method, need the user to input specific password and come release, but be easy to more in short-term crack when user cipher length, security is not high, is difficult for cracking when user cipher length is longer but easily forgets, therefore in the prior art, usually adopt the second authentication mode for the user terminal of supporting touch technology, i.e. pattern authentication, the user need to slide to finish safety certification according to predetermined pattern by finger when release.
But, in the prior art, even in the system that supports Multi-Touch, such as Android (Android) system or (the iPhone Operating System of apple system, iOS) when carrying out safety verification, still only utilize single-point touch, do not taken full advantage of the Multi-Touch technology.And for pattern authentication, when predetermined pattern is too complicated, be unfavorable for memory, the user easily forgets, if and user's authentication pattern is revealed, others also can be according to the safety certification of authentication pattern by this user, and the security of user profile just can not get guaranteeing like this, easily reveals individual privacy.
Summary of the invention
Embodiments of the invention provide a kind of safety certifying method based on multi-point touch and user terminal, can take full advantage of multi-point touch, the security that has improved user terminal when simplifying safety certification.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, provide a kind of safety certifying method based on multi-point touch, comprising:
When user's touch screen, obtain the positional information of at least two touch points;
Positional information and the prestored information of described at least two touch points are compared, when the error of described positional information and described prestored information is in specialized range, removing screen locking.
On the other hand, provide a kind of user terminal, comprising:
Acquiring unit is used for obtaining the positional information of at least two touch points when user's touch screen.
Processing unit compares positional information and the prestored information of described at least two touch points, when the error of described positional information and described prestored information is in specialized range, and removing screen locking.
Embodiments of the invention provide a kind of safety certifying method based on multi-point touch, can take full advantage of multi-point touch, by obtaining a plurality of touch points electricity distance between any two and the angle of the angle of figure that a plurality of touch point surrounds, make the user customize special-purpose safety certification scheme to oneself, and the user is memory cipher or pattern again, thus the security that when simplifying safety certification, has improved user terminal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet one based on the safety certifying method of multi-point touch that Fig. 1 provides for the embodiment of the invention;
The schematic flow sheet two based on the safety certifying method of multi-point touch that Fig. 2 provides for the embodiment of the invention;
The schematic flow sheet three based on the safety certifying method of multi-point touch that Fig. 3 provides for the embodiment of the invention;
The schematic flow sheet four based on the safety certifying method of multi-point touch that Fig. 4 provides for the embodiment of the invention;
The schematic diagram one of the touch point that Fig. 5 provides for the embodiment of the invention;
The schematic diagram two of the touch point that Fig. 6 provides for the embodiment of the invention;
The structural representation one of the user terminal that Fig. 7 provides for the embodiment of the invention;
The structural representation two of the user terminal that Fig. 8 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
Safety certifying method based on multi-point touch provided by the invention as shown in Figure 1, comprising:
S101, when user's touch screen, obtain the positional information of at least two touch points.
S102, positional information and the prestored information of at least two touch points compared, when the error of positional information and prestored information is in specialized range, removing screen locking.
Wherein, the positional information of at least two touch points is the current location information of at least two touch points, perhaps one of at least motion track information at least two touch points.
The safety certifying method based on multi-point touch that embodiments of the invention provide, can take full advantage of multi-point touch, by obtaining touch point electricity distance between any two and the angle of the angle of figure that the touch point surrounds, make the user customize special-purpose safety certification scheme to oneself, and the user is memory cipher or pattern again, thus the security that when simplifying safety certification, has improved user terminal.
Embodiment two
Safety certifying method based on multi-point touch provided by the invention is the detailed protocol of embodiment one, as shown in Figure 2, comprising:
S201, obtain and store the predefined preset value of user.
Concrete, when the user enables safety verification first, need to preset preset value.At first, the user is placed on two fingers on the touch-screen at least, and system then positions finger two touch points, place, and obtains the coordinate of two touch points.Coordinate according to two touch points obtains two distances between the touch point, at last the distance between two touch points is saved as first distance that prestores.
S202, when user's touch screen, obtain the positional information of at least two touch points.
Exemplary, the positional information of touch point can be the coordinate of touch point, usually for the system that supports multiple point touching, system platforms such as Android or iOS adopts the condenser type screen mostly, when user's finger touch screen, because people's bulk electric field, can form a coupling capacitance between finger and conductor layer, the electric current that screen four limit electrodes can send respectively can flow to the touch point, be directly proportional with the distance of finger to electrode and electric current is strong and weak, utilize this characteristic, be positioned at the coordinate that strong and weak ratio that controller after the touch screen just can calculate electric current is accurately calculated the touch point.
S203, obtain distance between the touch point according to the coordinate of touch point.
S204, the angle of the distance between the touch point and angle and predeterminable range and preset angles are compared removing screen locking.
Perhaps, the embodiment of the invention also provides another kind of safety certifying method based on multi-point touch, as shown in Figure 3, comprising:
S301, the distance after move the distance of two touch points and two touch points when obtaining user's touch screen also save as preset value.
Then finger two touch points, place are positioned in system, after obtaining the coordinate of two touch points and obtaining two distances between the touch point according to the coordinate of two touch points, the user can change by two fingers that slide the coordinate of two touch points, then obtain second distance according to the coordinate after the movement, and this second distance is stored as second distance that prestores.
S302, when user again during touch screen, the 4th distance after move the 3rd of two touch points the distance and two touch points when at first obtaining user's touch screen.
S303, with two touch points the 3rd the distance and above-mentioned first prestore the distance compare, the 4th distance and above-mentioned second after two touch points the are moved distance that prestores compares, when the 3rd distance and first prestores the error of distance in specialized range and the 4th distance and second prestores the error of distance also in specialized range the time, can unlock.
Wherein, the method and the step S202 that obtain the touch point coordinate are identical, repeat no more.
Further, the embodiment of the invention also provides another kind of safety certifying method based on multi-point touch, as shown in Figure 4, when the touch point is three or three when above, comprising:
S401, obtain the coordinate of the touch point more than three or three, and in the figure that three touch points surround, obtain the angle of at least one angle, then this angle is saved as pre-stored angle.
The figure that surrounds owing to three touch points is triangle, and the number of degrees that therefore only need to calculate at the most two angles just can obtain the number of degrees of all angles of triangle.Certainly, when multiple touch points is more arranged (upper limit of touch point depend on the touches that system supports at most count), the figure that surrounds can have more angle, can set the number that needs obtain the angle of angle according to user's needs.That is to say, when the user was setting, the touch point was more, and the angle number is more, and the number of the angle that the user need to be mated when checking just can be more, and security is also just higher.
Exemplary, the position of three touch point A, B, C as shown in Figure 5, A, B, C distance between any two is easy to just can draw according to the touch point coordinate, ∠ α is for obtaining the angle of angle, its angle also can be easy to obtain according to the touch point coordinate.
S402, when user's touch screen, obtain the coordinate of three touch points, acquisition methods and step S202 are identical, repeat no more.
S403, obtain three touch point distances between any two according to the coordinate of three touch points, and in the figure that the touch point surrounds, obtain the angle of at least one angle.
Exemplary, three touch point D, the E of this moment, the position of F as shown in Figure 6, touch point distance between any two is easy to just can draw according to the touch point coordinate.
Angle when at this moment, the required angle that obtains angle must preset with user among the step S401 is fully corresponding.Therefore exemplary, as shown in Figure 5 in step 401, ∠ α is for obtaining the angle of angle, then corresponding the required angle that obtains angle is ∠ β when authentication as shown in Figure 4, and ∠ α and ∠ β take the touch point of centre as the angle on summit.
S404, three touch points distance and the angle of angle and predeterminable range and preset angles between any two compared, when touch point distance and the error of the angle of angle and predeterminable range and preset angles in the error range of regulation time the between any two, removing screen locking.
Exemplary, such as Fig. 5, shown in Figure 6, contrast respectively the distance of distance and AC of distance, DF of distance and BC of distance, the EF of the distance of DE and AB, and the angular dimension of contrast ∠ β and ∠ α, when the error of the distance of the distance of the distance of the distance of the distance of DE and AB, EF and BC and DF and the distance of AC in the error range of regulation, and the error of the angle of ∠ β and ∠ α the regulation error range in the time, system allows through safety certification, removing screen locking.
Because everyone finger length and thickness are different, thereby each user is when touch screen, distance between the touch point and the angle of figure that the touch point surrounds and other user also are different, and the user just can be the special-purpose release scheme of oneself customization according to the hand shape of oneself like this.And in releasing process, not needing to input password or by slide producing pattern, having avoided because password or release pattern are forgotten or revealed and the trouble and the loss that cause to the user security that has improved user terminal in the simplification safety certification.
Further, the another kind that the embodiment of the invention provides comprises based on the safety certifying method of multi-point touch:
S501, the motion track information of one of obtaining at least two touch points at least.
Exemplary, obtain that a touch point rotates and radian and the radius of the circular arc that forms centered by another touch point.
Concrete, when the user take a fixing finger as axle, another is pointed around this axle when screen is drawn camber line, obtain the coordinate of touch point, fixed finger place and rotate finger the touch point initial coordinate and stop coordinate, then according to the coordinate of touch point, fixed finger place and rotate finger the touch point initial coordinate and stop radius and the radian that coordinate Calculation goes out above-mentioned circular arc.
S502, the radius of circular arc and radian and default radius and default radian are compared, when the error of radian and default radian in specialized range and the error of radius and default radius also in specialized range the time, removing screen locking.Wherein, when using first, the establishing method of this default radius and default radian is identical with method among the step S501, repeats no more.
The safety certifying method based on multi-point touch that embodiments of the invention provide, can take full advantage of multi-point touch, by obtaining touch point electricity distance between any two and the angle of the angle of figure that the touch point surrounds, make the user customize special-purpose safety certification scheme to oneself, and the user is memory cipher or pattern again, thus the security that when simplifying safety certification, has improved user terminal.
Embodiment three
A kind of user terminal 01 of the embodiment of the invention as shown in Figure 7, comprising:
Acquiring unit 011 is used for obtaining the positional information of at least two touch points when user's touch screen.
Further, as shown in Figure 8, user terminal 01 can also comprise:
Concrete, acquiring unit 011 also is used for obtaining the coordinate of at least two touch points;
Further, acquiring unit 011 is also for the coordinate after the movement of obtaining at least two touch points;
Further, acquiring unit 011 also is used for obtaining the angle of at least one angle in the figure that the touch point surrounds when three or three above touch points are arranged;
Further, acquiring unit 011 is used for also obtaining that a touch point rotates and radian and the radius of the circular arc that forms centered by another touch point;
The present invention is that the user terminal that example provides can be the portable terminals such as mobile phone, PDA, panel computer, notebook computer, also can be the terminal with desktop computer or other support multi-point touch of touch-screen.
The user terminal that embodiments of the invention provide, can take full advantage of multi-point touch, by obtaining touch point electricity distance between any two and the angle of the angle of figure that the touch point surrounds, make the user customize special-purpose safety certification scheme to oneself, and the user is memory cipher or pattern again, thus the security that when simplifying safety certification, has improved user terminal.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM (Read Only Memory, ROM (read-only memory)), RAM (Random Access Memory, random access memory), magnetic disc or CD.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (14)
1. the safety certifying method based on multi-point touch is characterized in that, comprising:
When user's touch screen, obtain the positional information of at least two touch points;
Positional information and the prestored information of described at least two touch points are compared, when the error of described at least two touch point information and described prestored information is in specialized range, removing screen locking.
2. method according to claim 1 is characterized in that, the positional information of described at least two touch points is the current location information of described at least two touch points, perhaps one of at least motion track information in described at least two touch points.
3. method according to claim 2 is characterized in that,
The described current location information that obtains at least two touch points comprises the coordinate that obtains at least two touch points;
Described positional information and prestored information with described at least two touch points compares, when the error of described positional information and described prestored information is in specialized range, removing screen locking comprises that the coordinate according to described at least two touch points obtains the distance between the touch point, and the distance between the described touch point and the first predeterminable range compared, when the error of the distance between the described touch point and described the first predeterminable range is in specialized range, removing screen locking.
4. method according to claim 3 is characterized in that, also comprises before removing screen locking:
Obtain the coordinate after the movement of described at least two touch points;
Obtain second distance between the touch point according to the coordinate after the movement of described at least two touch points, when the error of the second distance between the described touch point and the second predeterminable range is in specialized range, removing screen locking.
5. method according to claim 2 is characterized in that, the touch point is more than three or three, also comprises before removing screen locking:
In the figure that the touch point surrounds, obtain the angle of at least one angle;
Angle and the preset angles of described angle are compared, when the error of the angle of described angle and preset angles is in the error range of regulation, removing screen locking.
6. method according to claim 2 is characterized in that,
The motion track information of one of obtaining in described at least two touch points at least comprises obtains that a touch point rotates and radian and the radius of the circular arc that forms centered by another touch point;
Described positional information and prestored information with described at least two touch points compares, when the error of described positional information and described prestored information is in specialized range, removing screen locking comprises the radian of described circular arc and default radian is compared, described radius and default radius are compared, when the error of described radian and default radian in specialized range and the error of described radius and default radius also in specialized range the time, removing screen locking.
7. method according to claim 1 is characterized in that, before the described positional information of obtaining at least two touch points, also comprises:
Receive and the predefined preset value of storage user, described preset value comprises described the first predeterminable range, described the second predeterminable range, described default radian, described default radius and described preset angles.
8. a user terminal is characterized in that, comprising:
Acquiring unit is used for obtaining the positional information of at least two touch points when user's touch screen.
Processing unit compares positional information and the prestored information of described at least two touch points, when the error of described positional information and described prestored information is in specialized range, and removing screen locking.
9. user terminal according to claim 8 is characterized in that, the positional information of described at least two touch points is the current location information of described at least two touch points, perhaps one of at least motion track information in described at least two touch points.
10. user terminal according to claim 9 is characterized in that, comprising:
Described acquiring unit also is used for obtaining the coordinate of at least two touch points;
Described processing unit also is used for coordinate according to described at least two touch points and obtains distance between the touch point, and the distance between the described touch point and the first predeterminable range compared, when the error of the distance between the described touch point and described the first predeterminable range is in specialized range, removing screen locking.
11. user terminal according to claim 10 is characterized in that, comprising:
Described acquiring unit is also for the coordinate after the movement of obtaining described at least two touch points;
Described processing unit also is used for obtaining second distance between the touch point according to the coordinate after the movement of described at least two touch points, when the error of the second distance between the described touch point and the second predeterminable range is in specialized range, and removing screen locking.
12. user terminal according to claim 10 is characterized in that, comprising:
Described acquiring unit also is used for obtaining the angle of at least one angle in the figure that the touch point surrounds when three or three above touch points are arranged;
Described processing unit also is used for angle and the preset angles of described angle are compared, when in the error range that the error of the angle of described angle and preset angles is being stipulated, and removing screen locking.
13. user terminal according to claim 9 is characterized in that, comprising:
Described acquiring unit is used for also obtaining that a touch point rotates and radian and the radius of the circular arc that forms centered by another touch point;
Described processing unit also is used for radian and the default radian of described circular arc are compared, described radius and default radius are compared, when the error of described radian and default radian in specialized range and the error of described radius and default radius also in specialized range the time, removing screen locking.
14. user terminal according to claim 8 is characterized in that, also comprises:
Setup unit is used for obtaining and store the predefined preset value of user, and described preset value comprises described the first predeterminable range, described the second predeterminable range, described default radian, described default radius and described preset angles.
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| CN109101132A (en) * | 2018-08-07 | 2018-12-28 | 锐达互动科技股份有限公司 | A kind of method that conventional teaching is switched fast with electronic white board projection teaching |
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