CN105635450A - Mobile terminal unlocking method and device - Google Patents

Abstract

The invention discloses a mobile terminal unlocking method and device. The device includes an acquisition module which acquires a current state parameter of a mobile terminal when the mobile terminal is in a holding state; a judging module which judges whether the mobile terminal satisfies an eyeprint identification unlocking condition according to the current state parameter of the mobile terminal; a collection module which collects the eyeprint information of a user if the mobile terminal satisfies the current eyeprint identification unlocking condition; a comparison module which compares the collected eyeprint information with pre-set eyeprint information; and an operation module which performs unlocking operation on the mobile terminal according to a comparison result if it is monitored that the user lights up a mobile terminal screen. The mobile terminal unlocking method and device can shorten a camera to obtain a user image as much as possible, shortens a comparison process with the pre-set eyeprint, quickens the eyeprint identification speed, and improves the user experience when the condition is suitable for the eyeprint identification. When the condition is not suitable for the eyeprint identification, unlocking is performed through other modes, and the flexibility of the mobile terminal is improved.

Description

Mobile terminal unlock method and device

Technical field

The present invention relates to technical field of mobile terminals, particularly relate to a kind of mobile terminal unlock method and device.

Background technology

At present, the unlocking manner of the mobile terminals such as mobile phone has multiple, unlocks as by eyeprint identification. The principle of eyeprint solution lock technology is the some eyes images using front-facing camera to obtain user, is processed by these images, obtains the eyeprint information of user and is saved in this locality. When user unlocks, open the eyeprint information that front-facing camera obtains user, these information and the information prestored are carried out contrast determines whether it is mobile terminal owner, if it does, then unlock.

Existing eyeprint recognition technology, although improve unblock security, but it needs the regular hour, and under the environment being not suitable for eyeprint identification, the situation that such as light is darker, eyeprint identification accuracy is lower, reduces Consumer's Experience.

Summary of the invention

The main purpose of the present invention is to propose a kind of mobile terminal unlock method and device, it is intended to improve the speed of eyeprint identification when mobile terminal eyeprint unlocks, and the handiness that mobile terminal unlocks.

For achieving the above object, a kind of mobile terminal unlocking device provided by the invention, comprising:

Acquisition module, for when mobile terminal is in grip state, obtaining the current state parameter of described mobile terminal;

Judge module, for the current state parameter according to described mobile terminal, judge whether mobile terminal currently meets eyeprint identification unlocking condition;

Acquisition module, if currently meeting eyeprint identification unlocking condition for mobile terminal, then gathers the eyeprint information of user;

Comparing module, for the eyeprint information of collection and the eyeprint information prestored being compared, obtains comparison result;

Operation module, for when monitoring user and light mobile terminal screen, carrying out unlocking operation according to described comparison result to mobile terminal.

The current state parameter of described mobile terminal at least comprises the attitude parameter of described mobile terminal, and the attitude parameter of described mobile terminal comprises: the angle of pitch of described mobile terminal, yawing angle and/or rolling angle.

Can selection of land, described judgement module, if also reaching setting threshold value for the angle of pitch, yawing angle and/or rolling angle in the attitude angle of described mobile terminal, and/or, the environment light intensity of described mobile terminal is less than setting threshold value, and/or described mobile terminal to the distance of user people's eye is greater than setting threshold value, then judge that mobile terminal currently meets eyeprint identification unlocking condition.

Can selection of land, described operation module, if being also that the match is successful for described comparison result, then unlocks successfully, otherwise, unlock unsuccessfully.

Can selection of land, described comparing module, also for comparison result is preset the time for calling stored in database.

Can selection of land, described operation module, if also currently not meeting eyeprint identification unlocking condition for mobile terminal, then enters general unlock pattern.

Can selection of land, described judgement module, also for, before judging the step whether mobile terminal currently meets eyeprint identification unlocking condition, judging whether the current unlock mode of described mobile terminal is eyeprint identification unlock mode, if then judging whether mobile terminal currently meets eyeprint identification unlocking condition; Otherwise gather the eyeprint information of user by described acquisition module and preserve, as the eyeprint information prestored, call for eyeprint identification next time.

Can selection of land, described operation module, also for entering general unlock pattern after unlocking unsuccessfully.

Can selection of land, described operation module, if being also that the match is successful for described comparison result, then enters general unlock pattern, passes through if general unlock pattern unlocks, then unlocks successfully.

The embodiment of the present invention also proposes a kind of mobile terminal unlock method, comprising:

When mobile terminal is in grip state, obtain the current state parameter of described mobile terminal;

Current state parameter according to described mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition;

If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user;

The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result;

When monitoring user and light mobile terminal screen, according to described comparison result, mobile terminal is carried out unlocking operation.

The current state parameter of described mobile terminal at least comprises the attitude parameter of described mobile terminal, and the attitude parameter of described mobile terminal comprises: the angle of pitch of described mobile terminal, yawing angle and/or rolling angle.

Can selection of land, the described current state parameter according to described mobile terminal, judges that the step whether mobile terminal currently meets eyeprint identification unlocking condition comprises:

If the angle of pitch, yawing angle and/or rolling angle reach setting threshold value in the attitude angle of described mobile terminal, and/or, the environment light intensity of described mobile terminal is less than setting threshold value, and/or described mobile terminal to the distance of user people's eye is greater than setting threshold value, then judge that mobile terminal currently meets eyeprint identification unlocking condition.

Can selection of land, the described current state parameter according to described mobile terminal, also comprises after judging the step whether mobile terminal currently meets eyeprint identification unlocking condition:

If mobile terminal does not currently meet eyeprint identification unlocking condition, then enter general unlock pattern.

Can selection of land, the described current state parameter according to described mobile terminal, also comprises before judging the step whether mobile terminal currently meets eyeprint identification unlocking condition:

Judging whether the current unlock mode of described mobile terminal is eyeprint identification unlock mode, if then performing step: according to the current state parameter of described mobile terminal, judging whether mobile terminal currently meets eyeprint identification unlocking condition; Otherwise

Gather the eyeprint information of user and preserve, as the eyeprint information prestored, call for eyeprint identification next time.

A kind of mobile terminal unlock method that the present invention proposes and device, when mobile terminal is in grip state, obtain the current state parameter of mobile terminal; Current state parameter according to mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition; If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user; The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result; When monitoring user and light mobile terminal screen, according to comparison result, mobile terminal is carried out unlocking operation. Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlocking by other means, eyeprint identification is only as the checking mechanism of a backup, thus improves the handiness that mobile terminal unlocks.

Accompanying drawing explanation

Fig. 1 is the hardware architecture diagram of the optional mobile terminal realizing each embodiment of the present invention;

Fig. 2 is the radio communication system schematic of mobile terminal as shown in Figure 1;

Fig. 3 is the high-level schematic functional block diagram of mobile terminal unlocking device first embodiment of the present invention;

Fig. 4 is the conversion schematic diagram of the carrier coordinate system that relates to of the present embodiment and navigational coordinate system;

Fig. 5 is the principle schematic that the attitude that the present embodiment relates to is measured;

Fig. 6 is that the mobile phone that the present embodiment relates to is held and held process angle of pitch schematic diagram;

Fig. 7 is that the mobile phone that the present embodiment relates to is held and held process deflection angle schematic diagram;

Fig. 8 is the schematic flow sheet of mobile terminal unlock method first embodiment of the present invention;

Fig. 9 is the schematic flow sheet of mobile terminal unlock method the 2nd embodiment of the present invention;

Figure 10 is the schematic flow sheet of mobile terminal unlock method the 3rd embodiment of the present invention.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.

The terminating unit related in embodiment of the present invention scheme mainly refers to mobile terminal.

The mobile terminal realizing each embodiment of the present invention is described referring now to accompanying drawing. In follow-up description, it may also be useful to for representing that the suffix of such as " module ", " parts " or " unit " of element is only in order to be conducive to the explanation of the present invention, itself is specific meaning not. Therefore, " module " and " parts " can mixedly use.

Mobile terminal can be implemented in a variety of manners. Such as, the terminal described in the present invention can comprise the mobile terminal of such as mobile telephone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP (portable media player), Nvgtl aids etc. and the fixed terminal of such as numeral TV, desk-top computer etc. Below, it is assumed that terminal is mobile terminal. But, skilled person will appreciate that, except being used in particular for the element of mobile object, structure according to the embodiment of the present invention also can be applied to the terminal of fixed type.

Fig. 1 is the hardware structure signal of the optional mobile terminal realizing each embodiment of the present invention.

Mobile terminal 100 can comprise wireless communication unit 110, A/V (audio/video) inputs unit 120, user input unit 130, sensing cell 140, output unit 150, storer 160, interface unit 170, controller 180 and power subsystem 190 etc. Fig. 1 shows the mobile terminal with various assembly, but it is understood that do not require to implement all assemblies illustrated. Can alternatively implement more or less assembly. Will be discussed in more detail below the element of mobile terminal.

Wireless communication unit 110 generally includes one or more assembly, and it allows the wireless communication between mobile terminal 100 and radio communication system or network. Such as, wireless communication unit can comprise at least one in mobile communication module 112, wireless Internet module 113, short distance communication module 114 and positional information module 115.

Mobile communication module 112 such as, tick is sent in base station (access point, Node B etc.), exterior terminal and server at least one and/or from its receive tick. Various types of data that such tick can comprise voice call signal, video speech signal or send according to text and/or multi-media message and/or receive.

Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal. This module can be couple to terminal innerly or outside. Wi-Fi (Wireless Internet Access) technology involved by this module can comprise WLAN (WLAN) (Wi-Fi), Wibro (wireless broadband), Wimax (worldwide interoperability for microwave access), HSDPA (high-speed downlink packet access) etc.

Short distance communication module 114 is the module for supporting short distance to communicate. Some examples of short-range communication technology comprise bluetooth^TM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee^TMEtc..

Positional information module 115 is the module for checking or obtain the positional information of mobile terminal. The typical case of positional information module is GPS (global positioning system (GPS)). According to current technology, GPS module calculate from three or more satellite range information and accurately time information and for calculate Information application triangulation method, thus according to longitude, latitude and highly accurately calculate three-dimensional current location information. Currently, for calculate the method for position and time information and use three satellites and with the use of the error of other position that satellite correction calculation goes out and time information. In addition, GPS module can carry out computing velocity information by Continuous plus current location information in real time.

A/V inputs unit 120 for receiving audio or video signal. A/V inputs unit 120 can comprise camera 121, and the view data of the static images obtained by image capture apparatus in Video Capture pattern or image capture mode or video is processed by camera 121. Image frame after process may be displayed on display unit 151. Image frame after camera 121 processes can be stored in and send in storer 160 (or other storage media) or via wireless communication unit 110, it is possible to provide two or more cameras 1210 according to the structure of mobile terminal. User input unit 130 can generate key input data to control the various operations of mobile terminal according to the order of user's input. User input unit 130 allows user to input various types of information, and can comprise keyboard, the young sheet of pot, touch pad (such as, detect cause owing to being touched resistance, pressure, electric capacity etc. the sensitive component of change), roller, rocking bar etc. Especially, when touch pad is superimposed upon on display unit 151 as a layer, it is possible to form touch-screen.

Sensing cell 140 detects the current state of mobile terminal 100, (such as, mobile terminal 100 open or close state), the position of mobile terminal 100, user for mobile terminal 100 contact (namely, touch input) presence or absence, the orientation of mobile terminal 100, the acceleration or deceleration of mobile terminal 100 move and direction etc., and generate order or the signal of the operation for controlling mobile terminal 100. Such as, when mobile terminal 100 is embodied as sliding-type mobile phone, sensing cell 140 can be felt this sliding-type phone of survey and open or close. In addition, sensing cell 140 can detect power subsystem 190 and whether provide whether electric power or interface unit 170 couple with outer part device. Sensing cell 140 can comprise close to sensor 141, magnetometer, gyrostat jerkmeter etc.

Interface unit 170 is used as at least one outer part device and is connected the interface that can pass through with mobile terminal 100. Such as, outer part device can comprise wired or wireless head-band earphone port, outside power supply (or battery charger) port, wired or wireless data port, memory card port, for connect there is the device identifying module port, audio frequency I/O (I/O) port, video i/o port, ear port etc. Identify that module can be store for verifying that user uses the various information of mobile terminal 100 and can comprise subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc. In addition, having the form identifying that the device (hereinafter referred to " means of identification ") of module can take smart card, therefore, means of identification can be connected with mobile terminal 100 via port or other coupling device. Such as, interface unit 170 may be used for receiving from the input (data information, electric power etc.) of outer part device and the one or more element being transferred in mobile terminal 100 by the input received or may be used for transmitting data between mobile terminal and outer part device.

In addition, when mobile terminal 100 is connected with external base, interface unit 170 can be used as to allow by it from base, electric power be provided to the path of mobile terminal 100 or can be used as to allow the various command signals from base input be transferred to the path of mobile terminal by it. The signal identifying whether mobile terminal is arranged on base accurately can be used as from the various command signal of base input or electric power. Such as, output unit 150 is constructed to provide output signal (sound signal, vision signal, warning signal, vibration signal etc.) with vision, audio frequency and/or tactile manner. Output unit 150 can comprise display unit 151 etc.

Display unit 151 may be displayed on the information of process in mobile terminal 100. Such as, when mobile terminal 100 is in phone call mode, such as, display unit 151 can show communicate with call or other (text messaging, multimedia file download etc.) relevant user interface (UI) or graphic user interface (GUI). When being in video call mode or image capture mode when mobile terminal 100, display unit 151 can the image of display capture and/or reception image, video is shown or UI or GUI of image and correlation function etc.

Meanwhile, when superposition is to form touch-screen each other as a layer for display unit 151 and touch pad, display unit 151 can be used as input unit and take-off equipment. Display unit 151 can comprise at least one in liquid-crystal display (LCD), thin film transistor LCD (TFT-LCD), Organic Light Emitting Diode (OLED) indicating meter, flexible display, three-dimensional (3D) indicating meter etc. Some in these indicating meters can be constructed to transparent shape, and to allow, user watches from outside, and this can be called transparent display, and typical transparent display can be such as TOLED (transparent organic light emitting diode) indicating meter etc. According to the specific enforcement mode wanted, mobile terminal 100 can comprise two or more display units (or other display unit), such as, mobile terminal can comprise outernal display unit (not shown) and inner display unit (not shown). Touch-screen can be used for detection touch input pressure and touch input position and touch and inputs area.

Software program that storer 160 can store the process performed by controller 180 and control operates etc., or can temporarily store data that oneself maybe will export through exporting (such as, telephone book, message, static image, video etc.). And, storer 160 can store about the vibration of various modes exported when touching and be applied to touch-screen and the data of sound signal.

Storer 160 can comprise the storage media of at least one type, such as, described storage media comprises flash memory, hard disk, multi-media card, card-type storer (SD or DX storer etc.), accesses storer (RAM), static random-access memory (SRAM), read-only storage (ROM), electrically erasable read-only storage (EEPROM), programmable read only memory (PROM), magnetic storage device, disk, CD etc. at random. And, mobile terminal 100 can be connected the network storage device cooperation of the storage function performing storer 160 with by network.

Controller 180 controls the overall operation of mobile terminal usually. Such as, controller 180 performs and voice call, data corresponding, video call etc. relevant control and process. Power subsystem 190 receives external power or internal power under the control of controller 180 and offer operates the suitable electric power needed for each element and assembly.

Various enforcement mode described herein can to use the computer-readable medium of such as computer software, hardware or its any combination to implement. Hardware is implemented, enforcement mode described herein can be implemented with the use of specific end use unicircuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field-programmable gate array (FPGA), treater, controller, microcontroller, microprocessor, at least one that is designed to perform in the electronic unit of function described herein, in some cases, such enforcement mode can be implemented in controller 180. For implement software, the enforcement mode of such as process or function can be implemented with allowing the independent software module performing at least one function or operation. Software code can be implemented by the software application (or program) write with any suitable programming language, and software code can be stored in storer 160 and perform by controller 180.

So far, oneself is through the mobile terminal according to its functional description. Below, for the sake of brevity, by the slide type mobile terminal in the various types of mobile terminals describing such as folding type, straight-plate type, oscillating-type, slide type mobile terminal etc. exemplarily. Therefore, the present invention can be applied to the mobile terminal of any type, and is not limited to slide type mobile terminal.

Mobile terminal 100 as shown in Figure 1 can be constructed to utilize such as wired and radio communication system and satellite-based communication system via frame or grouping transmission data to operate.

The communication system that wherein can operate according to the mobile terminal of the present invention is described referring now to Fig. 2.

Such communication system can use different air interfaces and/or physical layer. Such as, especially, the air interface used by communication system comprises such as frequency division multiple access (FDMA), time division multiple access (TDMA), code division multple access (CDMA) and universal mobile communication system (UMTS) (long-term evolution (LTE)), global system for mobile communications (GSM) etc. As non-limiting example, description below relates to cdma communication system, but such instruction is equally applicable to the system of other type.

With reference to figure 2, cdma wireless communication system can comprise multiple mobile terminal 100, multiple base station (BS) 270, base station controller (BSC) 275 and mobile switching centre (MSC) 280. MSC280 is constructed to form interface with PSTN network (PSTN) 290. MSC280 is also constructed to and the BSC275 formation interface that can be couple to base station 270 via backhaul circuit. Backhaul circuit can construct according to any one in some interfaces that oneself knows, described interface comprises such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL. It will be understood that system can comprise multiple BSC2750 as shown in Figure 2.

Each BS270 can serve one or more subregion (or region), by how to each subregion of antenna or the antenna cover pointing to specific direction radial away from BS270. Or, each subregion can by two or more antenna covers for diversity reception. Such as, each BS270 can be constructed to support multiple frequency assignation, and each frequency assignation has specific frequency spectrum (1.25MHz, 5MHz etc.).

Subregion can be called as CDMA channel with intersecting of frequency assignation. BS270 can also be called as base station transceiver subsystem (BTS) or other equivalent terms. Under such circumstances, term " base station " may be used for broadly representing single BSC275 and at least one BS270. Base station can also be called as " cellular station ". Or, each subregion of particular B S270 can be called as multiple cellular station.

As shown in Figure 2, broadcast signal is sent to the mobile terminal 100 at operate within systems by broadcsting transmitter (BT) 295. Broadcast receiver module 111 is arranged on mobile terminal 100 and sentences the broadcast signal receiving and sending by BT295 as shown in Figure 1. In fig. 2, several global positioning system (GPS)s (GPS) satellite 300 is shown. Satellite 300 helps at least one in the multiple mobile terminal 100 in location.

In fig. 2, depict multiple satellite 300, but understanding is, it is possible to use the satellite of any number obtains useful locating information. GPS module in positional information module 115 as shown in Figure 1 is constructed to coordinate to obtain the locating information wanted with satellite 300 usually. Substitute GPS tracking technique or outside GPS tracking technique, it is possible to use can other technology of position of tracking mobile terminal. In addition, at least one gps satellite 300 can optionally or extraly process satellite dmb transmission.

As a typical operation of radio communication system, BS270 receives the reverse link signal from various mobile terminal 100. Mobile terminal 100 participates in call usually, information receiving and transmitting communicates with other type. Each reverse link signal that certain base station 270 receives is processed in particular B S270. The data obtained are forwarded to relevant BSC275. The mobile management function of the coordination of soft switching process that BSC provides call resources allocation and comprises between BS270. The data received also are routed to MSC280 by BSC275, and it is provided for being formed the extra route service of interface with PSTN290. Similarly, PSTN290 and MSC280 forms interface, and MSC and BSC275 forms interface, and BSC275 correspondingly controls BS270 so that forward link signals to be sent to mobile terminal 100.

Based on above-mentioned mobile terminal hardware structure and communication system, it is proposed to each embodiment of the present invention.

Owing to, in prior art, eyeprint recognition technology needs the regular hour, and under the environment being not suitable for eyeprint identification, the situation that such as light is darker, eyeprint identification accuracy is lower, reduces Consumer's Experience.

For this reason, the present invention proposes a solution, it is possible to effectively improve the speed of eyeprint identification when mobile terminal eyeprint unlocks, and the handiness that mobile terminal unlocks.

Specifically, as shown in Figure 3, first embodiment of the invention proposes a kind of mobile terminal unlocking device, comprising: acquisition module 201, judge module 202, acquisition module 203, comparing module 204 and operate module 205, wherein:

Acquisition module 201, for when mobile terminal is in grip state, obtaining the current state parameter of described mobile terminal;

Judge module 202, for the current state parameter according to described mobile terminal, judge whether mobile terminal currently meets eyeprint identification unlocking condition;

Acquisition module 203, if currently meeting eyeprint identification unlocking condition for mobile terminal, then gathers the eyeprint information of user;

Comparing module 204, for the eyeprint information of collection and the eyeprint information prestored being compared, obtains comparison result;

Operation module 205, for when monitoring user and light mobile terminal screen, carrying out unlocking operation according to described comparison result to mobile terminal.

Wherein, whether mobile terminal is in grip state and can be obtained by the rim pressure sensor measurement of mobile terminal.

In order to improve fault-tolerance, it is possible to hold for rim pressure sensor settings one and hold valve value F0, for mobile phone, when curable grip degree is more than or equal to F0, then user's handling mobile phone is described, it is possible to obtain the current state parameter of mobile phone.

Wherein, the current state parameter of mobile terminal can comprise the attitude parameter of mobile terminal, and the environmental parameter of mobile terminal can also be comprised, such as light intensity, positional information (mobile terminal is to the distance of people's eye) etc., wherein, the attitude parameter of mobile terminal can comprise: the angle of pitch of mobile terminal, yawing angle and/or rolling angle.

Specifically, the attitude parameter of mobile terminal can be obtained by sensor measurements such as the built-in magnetometer of mobile terminal, jerkmeter and gyrostats.

Environment light intensity residing for mobile terminal can be obtained by light sensor measurement, and mobile terminal then can be calculated by the camera collection image in distance-sensor or mobile terminal to the positional information of people's eye.

After getting the current state parameter of mobile terminal, according to the current state parameter of mobile terminal, judge whether mobile terminal currently meets eyeprint identification unlocking condition.

Specifically, as a kind of implementation, if the angle of pitch, yawing angle and/or rolling angle reach setting threshold value in the attitude angle of mobile terminal, then can judge that mobile terminal currently meets eyeprint identification unlocking condition. Wherein, it is possible to one or more in the angle of pitch in setting attitude angle, yawing angle and rolling angle reach setting threshold value, as judging that mobile terminal currently meets eyeprint identification unlocking condition.

Further, it is also possible in eyeprint identification unlocking condition, introduce environmental parameter, or, using the environmental parameter of mobile terminal separately as eyeprint identification unlocking condition.

Such as, the environment light intensity of setting mobile terminal is less than setting threshold value, and/or mobile terminal to the distance of user people's eye is greater than setting threshold value, then judge that mobile terminal currently meets eyeprint identification unlocking condition.

If mobile terminal currently meets eyeprint identification unlocking condition, the eyeprint information of user is then gathered by the shooting device (camera or photographing module etc.) of mobile terminal, so that the eyeprint information according to gathering carries out eyeprint identification, and judges whether mobile terminal is carried out unlocking operation according to recognition result.

If mobile terminal does not currently meet eyeprint identification unlocking condition, then can enter general unlock pattern, unlock as by pin mode; Or, it is also possible to directly do not unlock.

Therefore, user can arrange corresponding unlock mode as required, such as, it is possible to arranging current unlock mode is eyeprint unlock mode, or eyeprint encrypted code unlock mode, or is only unlock password pattern, etc. For the switching of multiple unlock mode, it is also possible to arrange corresponding handoff options or button, be not described further at this.

In the present embodiment, preserve user's eyeprint information of collection in advance, as the reference of subsequent check coupling.

After the eyeprint information of the active user obtaining gathering, the eyeprint information of collection and the eyeprint information prestored being compared, obtain comparison result, wherein, comparison result comprises that the match is successful and it fails to match.

Wherein, mode is implemented as one, the eyeprint information of collection and the eyeprint information prestored are being compared, after obtaining comparison result, comparison result can also being preset the time (such as 10 seconds) for calling stored in database, by this kind of mode, comparison result is effective within certain time, ageing and the handiness that eyeprint unlocks can be improved, and reduce the waste of data storage resource.

, in the present embodiment, in addition before user lights mobile terminal screen, eyeprint comparison result is obtained in advance, camera can be shortened obtain user images, shorten and the comparison process of the eyeprint that prestores as far as possible, so just can accelerate the speed of eyeprint identification, it is to increase Consumer's Experience.

When monitoring user and light mobile terminal screen, according to described comparison result, mobile terminal is carried out unlocking operation.

Implementing mode as one, when monitoring user and light mobile terminal screen, the comparison result according to obtaining before judges, if comparison result is that the match is successful, then unlocks successfully, otherwise, unlock unsuccessfully.

Further, in above-described embodiment, according to the unlock mode pre-set, adopt corresponding unlocking operation.

Implement mode as one, unlock if the unlock mode pre-set is only eyeprint, then, when comparison result is that the match is successful, unlock successfully, otherwise, unlock unsuccessfully.

Mode is implemented as another kind, if the unlock mode pre-set is eyeprint unblock+unlock password pattern, and sets two kinds of unlock mode and all pass through, then unlock and pass through, otherwise unlock unsuccessfully, so, when comparison result is that the match is successful, general unlock pattern is entered, pass through if general unlock pattern unlocks, then unlocking successfully, general unlock pattern unlocks not to be passed through, then unlock failure.

Implementing mode as another, if the unlock mode pre-set is eyeprint unblock+unlock password pattern, and set in two kinds of unlock mode, wherein one is passed through, and so, when comparison result is that the match is successful, unlocks successfully; Being that it fails to match at comparison result, namely eyeprint unlocks after unsuccessfully, enters general unlock pattern, passes through if general unlock pattern unlocks, then unlocks successfully, and general unlock pattern unlocks not to be passed through, then unlock failure.

The present embodiment, by such scheme, when mobile terminal is in grip state, obtains the current state parameter of mobile terminal; Current state parameter according to mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition; If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user; The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result; When monitoring user and light mobile terminal screen, according to comparison result, mobile terminal is carried out unlocking operation. Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlocking by other means, eyeprint identification is only as the checking mechanism of a backup, thus improves the handiness that mobile terminal unlocks.

Hereinafter elaborate in above-described embodiment, the measuring principle of the attitude parameter (angle of pitch of mobile terminal, yawing angle, rolling angle) of mobile terminal:

Specifically, for mobile phone, first introduce mobile phone coordinate transform and attitude matrix:

(1) attitude angle

The attitude angle of carrier is often often expressed as carrier coordinate system rotating relative to terrestrial coordinates system. The angle rotated is called the attitude angle (angle of pitch, rolling angle, yawing angle) of carrier, and wherein the angle of pitch is designated as ��, and rolling angle is designated as ��, and track angle is designated as ��. It is defined as follows separately:

The longitudinal axis of carrier and the angle of horizontal plane are defined as the angle of pitch, upwards just get, otherwise are negative, and scope is for change to 90 �� from-90 ��;

The transverse axis of carrier and the angle of horizontal plane are defined as rolling angle, and right side has a down dip as just, otherwise is negative, and scope changes to 180 �� from-180 ��;

The longitudinal axis of carrier and the angle of meridian are defined as angle of drift, are that 0 �� of clockwise direction is for just, value is from 0 �� to 360 �� from north geographic pole.

(2) attitude matrix

Represent that the matrix of carrier coordinate system and navigational coordinate system conversion relation is called attitude matrix, represent with symbol T.

As shown in Figure 4, Fig. 4 is the conversion schematic diagram of carrier coordinate system and navigational coordinate system.

Navigational coordinate system Ox_ny_nz_nGetting terrestrial coordinates system (n system), carrier coordinate system is designated as Ox_by_bz_b, such as Fig. 4, then attitude matrix meets equation:

$\left[\begin{array}{c}{x}_b\\ y_b\\ z_b\end{array}\right]=T\left[\begin{array}{c}{x}_n\\ y_n\\ z_n\end{array}\right];$

Three conversion that navigational coordinate system can be passed through, transform to carrier coordinate system:

The order ground of strapdown attitude algorithm is the real-time attitude obtaining carrier, so needing to solve attitude matrix. At present, the method for attitude algorithm mainly comprises direction cosine method, Eulerian angles method and quaternion method.

Wherein, the computing amount that Eulerian angles method needs is very little, but the critical defect of this algorithm strange point occurs when the angle of pitch 90 ��, cannot be used for full attitude algorithm. Direction cosine method needs solution to comprise the differential equation of 9 parameters, so calculated amount is very big, and there is non-orthogonalization error, and this process is also very complicated. Institute does not generally also commonly use in this way. Quaternion method by constructing the vector that comprises four elements, by the rotation transformed mappings of three-dimensional space to four-dimentional space. Resolve attitude angle by this method and have that calculated amount is little and algorithm there will not be the feature of strange point, be used widely at inertial navigation and field of Computer Graphics.

In above-mentioned algorithm, the motion tracking unit of employing includes three axle gyrostats, 3-axis acceleration meter and three axle magnetometers. Wherein:

Magnetometer is used for measuring the magnetic field of the earth, and kinetic characteristic is poor; Jerkmeter can measure the gravitational vector of earth surface when carrier stationary, but when carrier movement time, what jerkmeter exported is earth gravity acceleration and acceleration of motion and synthesis; Gyrostat can measure the rotational angular velocity of carrier, can obtain angle by integration, but the accumulation along with the time, and integration error is increasing, makes calculation accuracy poor. By merging above-mentioned three kinds of sensors, utilize jerkmeter and magnetometer to the drift of gravity field and the measured value compensation gyrostat of magnetic force field, it is possible to improve the precision of system.

The present embodiment scheme adopts simple attitude blending algorithm, method is the moving situation of the output certainty annuity utilizing jerkmeter, adopt rotating vector algorithm to calculate attitude in the dynamic case, under static conditions, adopt the data that Kalman filtering merges three kinds of sensors to calculate attitude.

As shown in Figure 5, Fig. 5 is the principle schematic that attitude is measured.

The motion conditions of the data estimation carrier according to jerkmeter. For the dynamic situation of height, it may also be useful to rotating vector algorithm solution attitude, under low dynamic condition, it may also be useful to Kalman filtering solution attitude. Specific algorithm is as follows:

Wherein �� represents the threshold value whether processing high dynamic condition.

Based on above-mentioned principle, below elaborate the computation process at the angle of pitch of mobile terminal, yawing angle, rolling angle:

(1) jerkmeter is utilized to resolve the angle of pitch and rolling angle

Three number of axle that jerkmeter exports are according to the acceleration of motion representing carrier coordinate system three axle respectively, and acceleration is designated as $a={\left[\begin{array}{ccc}{a}_x^b& a_y^b& a_z^b\end{array}\right]}^T,$ Under terrestrial coordinates system, the output of jerkmeter is f=[00g]^��, such that it is able to obtain following equation, whereinRepresent posture changing matrix:

$\left[\begin{array}{c}{a}_x^b\\ a_y^b\\ a_z^b\end{array}\right]=C_n^b\left[\begin{array}{c}0\\ 0\\ g\end{array}\right];$

Such that it is able to obtain:

Rolling angle is revised in the following way:

$\mathrm{\&gamma;}=\left\{\begin{array}{cc}fabs\left(a_z^b\right)<{10}^{-7},\mathrm{\&gamma;}>0& 90\\ fabs\left(a_z^b\right)<{10}^{-7},\mathrm{\&gamma;}<0& -90\\ a_z^b<0& \mathrm{\&gamma;}\\ a_z^b>0,\mathrm{\&gamma;}>0& -\mathrm{\&pi;}+\mathrm{\&gamma;}\\ a_z^b>0,\mathrm{\&gamma;}<0& \mathrm{\&pi;}+\mathrm{\&gamma;}\end{array}\right..$

(2) magnetometer is utilized to calculate yawing angle

In attitude measuring system, three axles of magnetometer are also three axles placements along carrier coordinate system, measure the component of terrestrial magnetic field in carrier coordinate system respectively, are designated as $H^b={\left[\begin{array}{ccc}{H}_x^b& H_y^b& H_z^b\end{array}\right]}^T,$ The attitude angle �� that will obtain above, �� brings intoDue toCan obtain:

Then track angle obtains by following Equation for Calculating:

$\mathrm{\&psi;}=\arctan \left(\frac{E_y}{E_x}\right);$

Span according to track angle, it is necessary to above-mentioned value is adjusted, adjustment mode is as follows:

$\mathrm{\&psi;}=\left\{\begin{array}{cc}fabs\left(E_x\right)<{10}^{-7},\mathrm{\&psi;}>0& 90\\ fabs\left(E_x\right)<{10}^{-7},\mathrm{\&psi;}<0& -90\\ E_x>0,& \arctan (E_y/E_x)\\ E_x<0,\mathrm{\&psi;}>0& -\mathrm{\&pi;}+\mathrm{\&psi;}\\ E_x<0,\mathrm{\&psi;}<0& \mathrm{\&pi;}+\mathrm{\&psi;}\end{array}\right.$

If �� < 0, ��=��+2 ��

As shown in Figure 6, Fig. 6 is that the mobile phone that the present embodiment relates to is held and held process angle of pitch schematic diagram. Mobile phone and XOY plane are angled, are just therefore above XOY plane. User normally stands, sitting use mobile phone time, pitching angle theta is more than or equal to 0 degree of angle usually, is less than or equals 90 degree of angles.

As shown in Figure 7, Fig. 7 is that the mobile phone that the present embodiment relates to is held and held process deflection angle schematic diagram. The negative semiaxis of mobile phone deflection Y-axis, therefore yaw angle �� is negative. �� angle is more than or equal to 45 degree usually, is less than or equals 135 degree.

�� general change in mobile phone use procedure in rolling angle is little, it is possible to do not include judging quota in.

In addition, light sensor and distance-sensor is relied on to complete the identification of light intensity and the identification of distance.

Further, if operation module 205 does not also currently meet eyeprint identification unlocking condition for mobile terminal, then general unlock pattern is entered.

Specifically, in the present embodiment, if through judging, mobile terminal does not currently meet eyeprint identification unlocking condition, then directly enter general unlock pattern, unlock as by pin mode.

Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlock by other means, eyeprint identification is only as the checking mechanism of a backup, thus by multiple unlocking manner, not only increase the safety in utilization of mobile terminal, also improve the unblock handiness of mobile terminal simultaneously, greatly improve Consumer's Experience.

Further, described judgement module 202, also for before judging the step whether mobile terminal currently meets eyeprint identification unlocking condition, judge whether the current unlock mode of described mobile terminal is eyeprint identification unlock mode, if then judging whether mobile terminal currently meets eyeprint identification unlocking condition; Otherwise gather the eyeprint information of user by described acquisition module and preserve, as the eyeprint information prestored, call for eyeprint identification next time.

Specifically, in the present embodiment, user can arrange different unlock mode as required, such as, it is possible to the current unlock mode of default setting is eyeprint unlock mode, or eyeprint encrypted code unlock mode, or is only unlock password pattern, etc.

If the current unlock mode of mobile terminal is eyeprint identification unlock mode, then unlocks flow process according to the eyeprint in above-described embodiment and carry out eyeprint collection, identification, Inspection, unlocking operation.

If the current unlock mode of mobile terminal is not eyeprint identification unlock mode, then can point out whether user enters eyeprint unlock mode, it is also possible to enter other unlock mode that user selects, such as unlock password pattern.

If user selects eyeprint unlock mode, and carried out eyeprint unblock before, then unlock flow process according to the eyeprint in above-described embodiment and carry out eyeprint collection, identification, Inspection, unlocking operation.

If user selects eyeprint unlock mode, but do not gather the eyeprint that prestores before, then gather the eyeprint information of user and preserve, as the eyeprint information prestored, call for eyeprint identification next time.

The present embodiment, by such scheme, when mobile terminal is in grip state, obtains the current state parameter of mobile terminal; Current state parameter according to mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition; If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user; The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result; When monitoring user and light mobile terminal screen, according to comparison result, mobile terminal is carried out unlocking operation. Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlocking by other means, eyeprint identification is only as the checking mechanism of a backup, thus improves the handiness that mobile terminal unlocks. In addition, if the current unlock mode of mobile terminal is not eyeprint unlock mode, then user can be pointed out to select eyeprint unlock mode, or gather the eyeprint information of user and preserve, as the eyeprint information prestored, call for eyeprint identification next time. It is therefore possible to increase the handiness of mobile terminal unlocking operation, meet the different demand of user.

As shown in Figure 8, first embodiment of the invention proposes a kind of mobile terminal unlock method, comprising:

Step S101, when mobile terminal is in grip state, obtains the current state parameter of described mobile terminal;

Wherein, whether mobile terminal is in grip state and can be obtained by the rim pressure sensor measurement of mobile terminal.

In order to improve fault-tolerance, it is possible to hold for rim pressure sensor settings one and hold valve value F0, for mobile phone, when curable grip degree is more than or equal to F0, then user's handling mobile phone is described, it is possible to obtain the current state parameter of mobile phone.

Wherein, the current state parameter of mobile terminal can comprise the attitude parameter of mobile terminal, and the environmental parameter of mobile terminal can also be comprised, such as light intensity, positional information (mobile terminal is to the distance of people's eye) etc., wherein, the attitude parameter of mobile terminal can comprise: the angle of pitch of mobile terminal, yawing angle and/or rolling angle.

Specifically, the attitude parameter of mobile terminal can be obtained by sensor measurements such as the built-in magnetometer of mobile terminal, jerkmeter and gyrostats.

Environment light intensity residing for mobile terminal can be obtained by light sensor measurement, and mobile terminal then can be calculated by the camera collection image in distance-sensor or mobile terminal to the positional information of people's eye.

Step S102, according to the current state parameter of described mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition;

Specifically, as a kind of implementation, if the angle of pitch, yawing angle and/or rolling angle reach setting threshold value in the attitude angle of mobile terminal, then can judge that mobile terminal currently meets eyeprint identification unlocking condition. Wherein, it is possible to one or more in the angle of pitch in setting attitude angle, yawing angle and rolling angle reach setting threshold value, as judging that mobile terminal currently meets eyeprint identification unlocking condition.

Further, it is also possible in eyeprint identification unlocking condition, introduce environmental parameter, or, using the environmental parameter of mobile terminal separately as eyeprint identification unlocking condition.

Such as, the environment light intensity of setting mobile terminal is less than setting threshold value, and/or mobile terminal to the distance of user people's eye is greater than setting threshold value, then judge that mobile terminal currently meets eyeprint identification unlocking condition.

Step S103, if mobile terminal currently meets eyeprint identification unlocking condition, then gathers the eyeprint information of user;

If mobile terminal currently meets eyeprint identification unlocking condition, the eyeprint information of user is then gathered by the shooting device (camera or photographing module etc.) of mobile terminal, so that the eyeprint information according to gathering carries out eyeprint identification, and judges whether mobile terminal is carried out unlocking operation according to recognition result.

If mobile terminal does not currently meet eyeprint identification unlocking condition, then can enter general unlock pattern, unlock as by pin mode; Or, it is also possible to directly do not unlock.

Therefore, user can arrange corresponding unlock mode as required, such as, it is possible to arranging current unlock mode is eyeprint unlock mode, or eyeprint encrypted code unlock mode, or is only unlock password pattern, etc. For the switching of multiple unlock mode, it is also possible to arrange corresponding handoff options or button, be not described further at this.

Step S104, compares the eyeprint information of collection and the eyeprint information prestored, obtains comparison result;

In the present embodiment, preserve user's eyeprint information of collection in advance, as the reference of subsequent check coupling.

After the eyeprint information of the active user obtaining gathering, the eyeprint information of collection and the eyeprint information prestored being compared, obtain comparison result, wherein, comparison result comprises that the match is successful and it fails to match.

Wherein, mode is implemented as one, the eyeprint information of collection and the eyeprint information prestored are being compared, after obtaining comparison result, comparison result can also being preset the time (such as 10 seconds) for calling stored in database, by this kind of mode, comparison result is effective within certain time, ageing and the handiness that eyeprint unlocks can be improved, and reduce the waste of data storage resource.

, in the present embodiment, in addition before user lights mobile terminal screen, eyeprint comparison result is obtained in advance, camera can be shortened obtain user images, shorten and the comparison process of the eyeprint that prestores as far as possible, so just can accelerate the speed of eyeprint identification, it is to increase Consumer's Experience.

Step S105, when monitoring user and light mobile terminal screen, carries out unlocking operation according to described comparison result to mobile terminal.

Implementing mode as one, when monitoring user and light mobile terminal screen, the comparison result according to obtaining before judges, if comparison result is that the match is successful, then unlocks successfully, otherwise, unlock unsuccessfully.

Further, in above-described embodiment, according to the unlock mode pre-set, adopt corresponding unlocking operation.

Implement mode as one, unlock if the unlock mode pre-set is only eyeprint, then, when comparison result is that the match is successful, unlock successfully, otherwise, unlock unsuccessfully.

Mode is implemented as another kind, if the unlock mode pre-set is eyeprint unblock+unlock password pattern, and sets two kinds of unlock mode and all pass through, then unlock and pass through, otherwise unlock unsuccessfully, so, when comparison result is that the match is successful, general unlock pattern is entered, pass through if general unlock pattern unlocks, then unlocking successfully, general unlock pattern unlocks not to be passed through, then unlock failure.

Implementing mode as another, if the unlock mode pre-set is eyeprint unblock+unlock password pattern, and set in two kinds of unlock mode, wherein one is passed through, and so, when comparison result is that the match is successful, unlocks successfully; Being that it fails to match at comparison result, namely eyeprint unlocks after unsuccessfully, enters general unlock pattern, passes through if general unlock pattern unlocks, then unlocks successfully, and general unlock pattern unlocks not to be passed through, then unlock failure.

The present embodiment, by such scheme, when mobile terminal is in grip state, obtains the current state parameter of mobile terminal; Current state parameter according to mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition; If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user; The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result; When monitoring user and light mobile terminal screen, according to comparison result, mobile terminal is carried out unlocking operation. Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlocking by other means, eyeprint identification is only as the checking mechanism of a backup, thus improves the handiness that mobile terminal unlocks.

Hereinafter elaborate in above-described embodiment, the measuring principle of the attitude parameter (angle of pitch of mobile terminal, yawing angle, rolling angle) of mobile terminal:

Specifically, for mobile phone, first introduce mobile phone coordinate transform and attitude matrix:

(1) attitude angle

The attitude angle of carrier is often often expressed as carrier coordinate system rotating relative to terrestrial coordinates system. The angle rotated is called the attitude angle (angle of pitch, rolling angle, yawing angle) of carrier, and wherein the angle of pitch is designated as ��, and rolling angle is designated as ��, and track angle is designated as ��. It is defined as follows separately:

The longitudinal axis of carrier and the angle of horizontal plane are defined as the angle of pitch, upwards just get, otherwise are negative, and scope is for change to 90 �� from-90 ��;

The transverse axis of carrier and the angle of horizontal plane are defined as rolling angle, and right side has a down dip as just, otherwise is negative, and scope changes to 180 �� from-180 ��;

The longitudinal axis of carrier and the angle of meridian are defined as angle of drift, are that 0 �� of clockwise direction is for just, value is from 0 �� to 360 �� from north geographic pole.

(2) attitude matrix

Represent that the matrix of carrier coordinate system and navigational coordinate system conversion relation is called attitude matrix, represent with symbol T.

As shown in Figure 4, Fig. 4 is the conversion schematic diagram of carrier coordinate system and navigational coordinate system.

Navigational coordinate system Ox_ny_nz_nGetting terrestrial coordinates system (n system), carrier coordinate system is designated as Ox_by_bz_b, such as Fig. 4, then attitude matrix meets equation:

$\left[\begin{array}{c}{x}_b\\ y_b\\ z_b\end{array}\right]=T\left[\begin{array}{c}{x}_n\\ y_n\\ z_n\end{array}\right];$

Three conversion that navigational coordinate system can be passed through, transform to carrier coordinate system:

The order ground of strapdown attitude algorithm is the real-time attitude obtaining carrier, so needing to solve attitude matrix. At present, the method for attitude algorithm mainly comprises direction cosine method, Eulerian angles method and quaternion method.

Wherein, the computing amount that Eulerian angles method needs is very little, but the critical defect of this algorithm strange point occurs when the angle of pitch 90 ��, cannot be used for full attitude algorithm. Direction cosine method needs solution to comprise the differential equation of 9 parameters, so calculated amount is very big, and there is non-orthogonalization error, and this process is also very complicated. Institute does not generally also commonly use in this way. Quaternion method by constructing the vector that comprises four elements, by the rotation transformed mappings of three-dimensional space to four-dimentional space. Resolve attitude angle by this method and have that calculated amount is little and algorithm there will not be the feature of strange point, be used widely at inertial navigation and field of Computer Graphics.

In above-mentioned algorithm, the motion tracking unit of employing includes three axle gyrostats, 3-axis acceleration meter and three axle magnetometers. Wherein:

Magnetometer is used for measuring the magnetic field of the earth, and kinetic characteristic is poor; Jerkmeter can measure the gravitational vector of earth surface when carrier stationary, but when carrier movement time, what jerkmeter exported is earth gravity acceleration and acceleration of motion and synthesis; Gyrostat can measure the rotational angular velocity of carrier, can obtain angle by integration, but the accumulation along with the time, and integration error is increasing, makes calculation accuracy poor. By merging above-mentioned three kinds of sensors, utilize jerkmeter and magnetometer to the drift of gravity field and the measured value compensation gyrostat of magnetic force field, it is possible to improve the precision of system.

The present embodiment scheme adopts simple attitude blending algorithm, method is the moving situation of the output certainty annuity utilizing jerkmeter, adopt rotating vector algorithm to calculate attitude in the dynamic case, under static conditions, adopt the data that Kalman filtering merges three kinds of sensors to calculate attitude.

As shown in Figure 5, Fig. 5 is the principle schematic that attitude is measured.

The motion conditions of the data estimation carrier according to jerkmeter. For the dynamic situation of height, it may also be useful to rotating vector algorithm solution attitude, under low dynamic condition, it may also be useful to Kalman filtering solution attitude. Specific algorithm is as follows:

Wherein �� represents the threshold value whether processing high dynamic condition.

Based on above-mentioned principle, below elaborate the computation process at the angle of pitch of mobile terminal, yawing angle, rolling angle:

(1) jerkmeter is utilized to resolve the angle of pitch and rolling angle

Three number of axle that jerkmeter exports are according to the acceleration of motion representing carrier coordinate system three axle respectively, and acceleration is designated as $a={\left[\begin{array}{ccc}{a}_x^b& a_y^b& a_z^b\end{array}\right]}^T,$ Under terrestrial coordinates system, the output of jerkmeter is f=[00g]^��, such that it is able to obtain following equation, whereinRepresent posture changing matrix:

$\left[\begin{array}{c}{a}_x^b\\ a_y^b\\ a_z^b\end{array}\right]=C_n^b\left[\begin{array}{c}0\\ 0\\ g\end{array}\right];$

Such that it is able to obtain:

Rolling angle is revised in the following way:

$\mathrm{\&gamma;}=\left\{\begin{array}{cc}fabs\left(a_z^b\right)<{10}^{-7},\mathrm{\&gamma;}>0& 90\\ fabs\left(a_z^b\right)<{10}^{-7},\mathrm{\&gamma;}<0& -90\\ a_z^b<0& \mathrm{\&gamma;}\\ a_z^b>0,\mathrm{\&gamma;}>0& -\mathrm{\&pi;}+\mathrm{\&gamma;}\\ a_z^b>0,\mathrm{\&gamma;}<0& \mathrm{\&pi;}+\mathrm{\&gamma;}\end{array}\right..$

(2) magnetometer is utilized to calculate yawing angle

In attitude measuring system, three axles of magnetometer are also three axles placements along carrier coordinate system, measure the component of terrestrial magnetic field in carrier coordinate system respectively, are designated as $H^b={\left[\begin{array}{ccc}{H}_x^b& H_y^b& H_z^b\end{array}\right]}^T,$ The attitude angle �� that will obtain above, �� brings intoDue toCan obtain:

Then track angle obtains by following Equation for Calculating:

$\mathrm{\&psi;}=\arctan \left(\frac{E_y}{E_x}\right);$

Span according to track angle, it is necessary to above-mentioned value is adjusted, adjustment mode is as follows:

$\mathrm{\&psi;}=\left\{\begin{array}{cc}fabs\left(E_x\right)<{10}^{-7},\mathrm{\&psi;}>0& 90\\ fabs\left(E_x\right)<{10}^{-7},\mathrm{\&psi;}<0& -90\\ E_x>0,& \arctan (E_y/E_x)\\ E_x<0,\mathrm{\&psi;}>0& -\mathrm{\&pi;}+\mathrm{\&psi;}\\ E_x<0,\mathrm{\&psi;}<0& \mathrm{\&pi;}+\mathrm{\&psi;}\end{array}\right.$

If �� < 0, ��=��+2 ��

As shown in Figure 6, Fig. 6 is that the mobile phone that the present embodiment relates to is held and held process angle of pitch schematic diagram. Mobile phone and XOY plane are angled, are just therefore above XOY plane. User normally stands, sitting use mobile phone time, pitching angle theta is more than or equal to 0 degree of angle usually, is less than or equals 90 degree of angles.

As shown in Figure 7, Fig. 7 is that the mobile phone that the present embodiment relates to is held and held process deflection angle schematic diagram. The negative semiaxis of mobile phone deflection Y-axis, therefore yaw angle �� is negative. �� angle is more than or equal to 45 degree usually, is less than or equals 135 degree.

�� general change in mobile phone use procedure in rolling angle is little, it is possible to do not include judging quota in.

In addition, light sensor and distance-sensor is relied on to complete the identification of light intensity and the identification of distance.

As shown in Figure 9, second embodiment of the invention proposes a kind of mobile terminal unlock method, based on the embodiment shown in above-mentioned Fig. 8, the method is in step S102: according to the current state parameter of described mobile terminal, judges mobile terminal also comprises after currently whether meeting eyeprint identification unlocking condition:

Step S106, if mobile terminal does not currently meet eyeprint identification unlocking condition, then enters general unlock pattern.

Specifically, in the present embodiment, if through judging, mobile terminal does not currently meet eyeprint identification unlocking condition, then directly enter general unlock pattern, unlock as by pin mode.

Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlock by other means, eyeprint identification is only as the checking mechanism of a backup, thus by multiple unlocking manner, not only increase the safety in utilization of mobile terminal, also improve the unblock handiness of mobile terminal simultaneously, greatly improve Consumer's Experience.

As shown in Figure 10, third embodiment of the invention proposes a kind of mobile terminal unlock method, based on the embodiment shown in above-mentioned Fig. 9, the method is in step S102: according to the current state parameter of described mobile terminal, judges mobile terminal also comprises before currently whether meeting eyeprint identification unlocking condition:

Step S107, judges whether the current unlock mode of described mobile terminal is eyeprint identification unlock mode, if then performing step S102; Otherwise perform step S108;

Step S108, gathers the eyeprint information of user and preserves, and as the eyeprint information prestored, calls for eyeprint identification next time.

Specifically, in the present embodiment, user can arrange different unlock mode as required, such as, it is possible to the current unlock mode of default setting is eyeprint unlock mode, or eyeprint encrypted code unlock mode, or is only unlock password pattern, etc.

If the current unlock mode of mobile terminal is eyeprint identification unlock mode, then unlocks flow process according to the eyeprint in above-described embodiment and carry out eyeprint collection, identification, Inspection, unlocking operation.

If the current unlock mode of mobile terminal is not eyeprint identification unlock mode, then can point out whether user enters eyeprint unlock mode, it is also possible to enter other unlock mode that user selects, such as unlock password pattern.

If user selects eyeprint unlock mode, and carried out eyeprint unblock before, then unlock flow process according to the eyeprint in above-described embodiment and carry out eyeprint collection, identification, Inspection, unlocking operation.

If user selects eyeprint unlock mode, but do not gather the eyeprint that prestores before, then gather the eyeprint information of user and preserve, as the eyeprint information prestored, call for eyeprint identification next time.

The present embodiment, by such scheme, when mobile terminal is in grip state, obtains the current state parameter of mobile terminal; Current state parameter according to mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition; If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user; The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result; When monitoring user and light mobile terminal screen, according to comparison result, mobile terminal is carried out unlocking operation. Thus, when applicable eyeprint identification, it is possible to shorten camera as far as possible and obtain user images, shorten and the comparison process of the eyeprint that prestores, thus accelerate the speed of eyeprint identification, it is to increase Consumer's Experience; When being not suitable for eyeprint identification, unlocking by other means, eyeprint identification is only as the checking mechanism of a backup, thus improves the handiness that mobile terminal unlocks. In addition, if the current unlock mode of mobile terminal is not eyeprint unlock mode, then user can be pointed out to select eyeprint unlock mode, or gather the eyeprint information of user and preserve, as the eyeprint information prestored, call for eyeprint identification next time. It is therefore possible to increase the handiness of mobile terminal unlocking operation, meet the different demand of user.

It should be noted that, herein, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, so that comprise the process of a series of key element, method, article or device not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise the key element intrinsic for this kind of process, method, article or device. When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising this key element and also there is other identical element.

Above-mentioned embodiment of the present invention sequence number, just to describing, does not represent the quality of embodiment.

Through the above description of the embodiments, the technician of this area can be well understood to above-described embodiment method and can realize by the mode that software adds required general hardware platform, hardware can certainly be passed through, but in a lot of situation, the former is better enforcement mode. Based on such understanding, the technical scheme of the present invention in essence or says that part prior art contributed can embody with the form of software product, this computer software product is stored in a storage media (such as ROM/RAM, magnetic disc, CD), comprise some instructions with so that a station terminal equipment (can be mobile phone, computer, server, conditioner, or the network equipment etc.) perform the method described in each embodiment of the present invention.

These are only the preferred embodiments of the present invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in the scope of patent protection of the present invention with reason.

Claims (10)

1. a mobile terminal unlocking device, it is characterised in that, comprising:

Acquisition module, for when mobile terminal is in grip state, obtaining the current state parameter of described mobile terminal; The current state parameter of described mobile terminal at least comprises the attitude parameter of described mobile terminal, and the attitude parameter of described mobile terminal comprises: the angle of pitch of described mobile terminal, yawing angle and/or rolling angle;

Judge module, for the current state parameter according to described mobile terminal, judge whether mobile terminal currently meets eyeprint identification unlocking condition;

Acquisition module, if currently meeting eyeprint identification unlocking condition for mobile terminal, then gathers the eyeprint information of user;

Comparing module, for the eyeprint information of collection and the eyeprint information prestored being compared, obtains comparison result;

Operation module, for when monitoring user and light mobile terminal screen, carrying out unlocking operation according to described comparison result to mobile terminal.

2. device according to claim 1, it is characterised in that,

Described judgement module, if also reaching setting threshold value for the angle of pitch, yawing angle and/or rolling angle in the attitude angle of described mobile terminal, and/or, the environment light intensity of described mobile terminal is less than setting threshold value, and/or described mobile terminal to the distance of user people's eye is greater than setting threshold value, then judge that mobile terminal currently meets eyeprint identification unlocking condition.

3. device according to claim 1, it is characterised in that,

Described operation module, if being also that the match is successful for described comparison result, then unlocks successfully, otherwise, unlock unsuccessfully.

4. device according to any one of claim 1-3, it is characterised in that,

Described comparing module, also for comparison result is preset the time for calling stored in database.

5. device according to claim 1, it is characterised in that,

Described judgement module, also for before judging the step whether mobile terminal currently meets eyeprint identification unlocking condition, judge whether the current unlock mode of described mobile terminal is eyeprint identification unlock mode, if then judging whether mobile terminal currently meets eyeprint identification unlocking condition; Otherwise gather the eyeprint information of user by described acquisition module and preserve, as the eyeprint information prestored, call for eyeprint identification next time.

6. device according to claim 3, it is characterised in that,

Described operation module, also for entering general unlock pattern after unlocking unsuccessfully; Or,

Described operation module, if being also that the match is successful for described comparison result, then enters general unlock pattern, passes through if general unlock pattern unlocks, then unlocks successfully.

7. a mobile terminal unlock method, it is characterised in that, comprising:

When mobile terminal is in grip state, obtain the current state parameter of described mobile terminal; The current state parameter of described mobile terminal at least comprises the attitude parameter of described mobile terminal, and the attitude parameter of described mobile terminal comprises: the angle of pitch of described mobile terminal, yawing angle and/or rolling angle;

Current state parameter according to described mobile terminal, judges whether mobile terminal currently meets eyeprint identification unlocking condition;

If mobile terminal currently meets eyeprint identification unlocking condition, then gather the eyeprint information of user;

The eyeprint information of collection and the eyeprint information prestored are compared, obtains comparison result;

When monitoring user and light mobile terminal screen, according to described comparison result, mobile terminal is carried out unlocking operation.

8. method according to claim 7, it is characterised in that, the described current state parameter according to described mobile terminal, judges that the step whether mobile terminal currently meets eyeprint identification unlocking condition comprises:

If the angle of pitch, yawing angle and/or rolling angle reach setting threshold value in the attitude angle of described mobile terminal, and/or, the environment light intensity of described mobile terminal is less than setting threshold value, and/or described mobile terminal to the distance of user people's eye is greater than setting threshold value, then judge that mobile terminal currently meets eyeprint identification unlocking condition.

9. method according to claim 7, it is characterised in that, the described current state parameter according to described mobile terminal, also comprises after judging the step whether mobile terminal currently meets eyeprint identification unlocking condition:

If mobile terminal does not currently meet eyeprint identification unlocking condition, then enter general unlock pattern.

10. method according to any one of claim 7-9, it is characterised in that, the described current state parameter according to described mobile terminal, also comprises before judging the step whether mobile terminal currently meets eyeprint identification unlocking condition:

Judging whether the current unlock mode of described mobile terminal is eyeprint identification unlock mode, if then performing step: according to the current state parameter of described mobile terminal, judging whether mobile terminal currently meets eyeprint identification unlocking condition; Otherwise

Gather the eyeprint information of user and preserve, as the eyeprint information prestored, call for eyeprint identification next time.