CN105644500A - Car door opening control method based on wireless security and protection system - Google Patents

Abstract

The invention discloses a car door opening control method based on a wireless security and protection system and belongs to the field of vehicle security and protection. The car door opening control method comprises the steps that a face image of a user is obtained in advance, stored and encrypted; the face image is matched with a mobile phone of the user through a Bluetooth receiving and dispatching module, and an unlock password is input by the user; a face image is collected through image collecting equipment, and an image to be matched is obtained; after the stored and encrypted face image is decrypted, the to-be-matched image obtained through the image collecting equipment is matched with the decrypted face image; and when the to-be-matched image obtained through the image collecting equipment is successfully matched with the decrypted face image, an electric car door lock is controlled to be opened through a controller. According to the car door opening control method based on the wireless security and protection system, Bluetooth pairing is conducted between the generated password and the wireless security and protection system, after matching is successful, face recognition and matching are conducted, and then the car door lock is unlocked; compared with an existing car door opening control method, the car door opening control method based on the wireless security and protection system is safer.

Description

Based on the car door opening control method of wireless security system

Technical field

The invention belongs to security of vehicle field, particularly relate to a kind of car door opening control method.

Background technology

In order to prevent vehicle stolen, the reliable switch problem of car door is considered as the technology that can not be ignored by vehicular manufacturer. With regard to the current state of the art, although car door switch is of a great variety, but, what great majority adopted is machinery or electronics password technology. Have been reported display, because the password of car door lock is cracked and make stolen articles or vehicle in car stolen, of common occurrence. Therefore, the vehicle having a set of intelligent switch car door obviously becomes the reality that people wish day by day.

In prior art, common are and utilize the car door switch car key switch of cipher inputting keyboard and former automobile as input sensor, and coordinate with error code identification circuit, spoon control identify circuit, enabling Time-delayed trigger circuit etc., add door opening timing alarm, press the warning of password key by mistake, miss functions such as inserting car key warning, damage preventing alarm, anti-robbery warning. The prior art is only that " add door opening timing alarm, press the warning of password key by mistake, miss functions such as inserting car key warning, damage preventing alarm, anti-robbery warning ", in order to improve " antitheft function ", does not have real intelligent anti-theft function.

Summary of the invention

Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide and a kind of can realize the safer control method of car door opening.

For achieving the above object, the present invention provides a kind of car door opening control method based on wireless security system, and described automobile wireless safety-protection system comprises image capture device, bluetooth transceiver module, the first wireless signal transceiver module, the 2nd wireless signal transceiver module, controller and electronics car door lock; The signal output terminal of described image capture device connects the signal input terminus of described controller; Described controller and described bluetooth transceiver module are bi-directionally connected; Described controller and the first wireless signal transceiver module are bi-directionally connected, and it is mutual that described first wireless signal transceiver module and the 2nd wireless signal transceiver module carry out wireless data, and described 2nd wireless signal transceiver module and upper computer are bi-directionally connected; The control signal output terminal of described controller connects the control signal input terminus of described electronics car door lock; Comprise the following steps:

Step one, obtain user's facial image and carry out storage encryption;

Step 2, being matched by bluetooth transceiver module and user mobile phone, user inputs unlocking pin;

Step 3, by the facial image of image capture device collection close to car door person, obtain image to be matched;

Step 4, to store face encryption image be decrypted;

Step 5, the image to be matched obtained by image capture device mate with the facial image after deciphering; When the match is successful for the facial image after the image to be matched that image capture device obtains with deciphering, upper computer sends a signal to controller, and controller transmits control signal and makes it open to described electronics car door lock; Terminate when the image to be matched that image capture device obtains mates unsuccessful with the facial image after deciphering;

Obtain user's facial image described in step one and carry out in storage encryption, the encryption of user's facial image is carried out according to the following steps:

Steps A 1, obtained resolving power by image capture device be the square facial image of a*a, and described a is positive integer;

Steps A 2, to set any pixel in described facial image be P_ij, obtain pixel P_ijRgb value, described i, j are positive integer, and 1��i��a, 1��j��a;

Steps A 3, by pixel P_ijR value, G value and B value be converted to corresponding hexadecimal values respectively;

Judge pixel P_ijSexadecimal number system R value, sexadecimal number system G value and sexadecimal number system B value whether reach two;

As pixel P_ijSexadecimal number system R value, sexadecimal number system G value or sexadecimal number system B value less than two time, add a character G at this less than the sexadecimal number system value left side of two, to form pixel P_ijTwo R value character strings, two G value character strings and two B value character strings, then perform steps A 4; As pixel P_ijSexadecimal number system R value, sexadecimal number system G value or sexadecimal number system B value be when reaching two, performs steps A 4;

Steps A 4, by pixel P_ijTwo R value character strings, two G value character strings and two B value character strings are arranged in order from left to right and form first step string;

Steps A 5, the hexadecimal values that i and j is converted to respectively correspondence;

Judge whether the sexadecimal number system value of i or the sexadecimal number system value of j reach four; When the sexadecimal number system value of i or the sexadecimal number system value of j are less than four, add character G at this less than the sexadecimal number system value left side of four, with four character strings of four character strings and j that form i, then perform steps A 6; When the sexadecimal number system value of i or the sexadecimal number system value of j reach four, perform steps A 6;

Steps A 6, the left side that the four of j character strings are added to described first step string, and the four of i character strings are added to the left side of four character strings of described j, to form second stage string;

Steps A 7, described facial image is divided into 16*16 square area $\left\{\begin{array}{cccc}{T}_{1,1}& T_{1,2}& ......& T_{1,16}\\ T_{2,1}& T_{2,2}& ......& T_{2,16}\\ ......& ......& ......& ......\\ T_{16,1}& T_{16,2}& ......& T_{16,16}\end{array}\right\},$ Choose described pixel P_ijThe region T at place_{M, n}, m, n are positive integer and 1��m��16,1��n��16;

Steps A 8, judge whether second stage string has character G; When comprising character G in the 2nd string, being replaced by the character G in the string of the second stage is 0, then performs steps A 9; When the 2nd string does not have character G, perform steps A 9;

Steps A 9, the figure place last setting described second stage string are Q₁, the figure place second from the bottom setting described second stage string is Q₂;

By Q₁And Q₂Be converted to decimal value respectively; Calculate Q₁₁=Q₁+ 1 obtains Q₁₁, calculate Q₂₁=Q₂+ 1 obtains Q₂₁; Described 1��Q₁₁�� 16, described 1��Q₂₁�� 16;

Calculate $T_{x,y}=\left\{\begin{array}{ccccc}{T}_{m+1,n+1}& if& m\&GreaterEqual;Q_{11}& and& n\&GreaterEqual;Q_{21}\\ T_{m+1,n-1}& if& m\&GreaterEqual;Q_{11}& and& n<Q_{21}\\ T_{m-1,n+1}& if& m<Q_{11}& and& n\&GreaterEqual;Q_{21}\\ T_{m-1,n-1}& if& m<Q_{11}& and& n<Q_{21}\end{array}\right.$ Obtain the first target area T_{X, y};

By T_{M, n}With T_{X, y}Replace;

Steps A 10, the first row region and territory, zone are replaced; 2nd row region and four lines region are replaced; Fifth line region and the 7th row region are replaced; 6th row region and the 8th row region are replaced; 9th row region and the tenth a line region are replaced; Tenth row region and the 12 row region are replaced; Tenth territory, zone and the tenth five-element region are replaced; Tenth four lines region and the 16 row region are replaced;

Described second stage string is the unlocking pin in described step 2;

The face encryption image stored is decrypted by step 4 and carries out according to the following steps:

S1, encrypted image is divided into 16*16 square area $\left\{\begin{array}{cccc}{T}_{1,1}& T_{1,2}& ......& T_{1,16}\\ T_{2,1}& T_{2,2}& ......& T_{2,16}\\ ......& ......& ......& ......\\ T_{16,1}& T_{16,2}& ......& T_{16,16}\end{array}\right\},$ The first row to four lines region is the first encryption module, fifth line to the 8th row region be the 2nd encryption module, the 9th walk to the 12 row region be the 3rd encryption module, the 13 walk to the 16 row region be the 4th encryption module;

S2, the password receiving user's input;

Whether S3, the password judging described user and inputting are 14 figure place strings; When the password of user's input is 14 figure place string, perform step S4; When the password of user's input is not 14 figure place string, returns and perform step S2;

S4, judge input password in whether have character G; When comprising character G in password, being replaced by the character G in password is 0, then performs step S5; When password does not have character G, perform step S5;

S5, parallel carry out region determine and rgb value conversion;

Described region is determined to carry out according to the following steps:

B1, the 1 to 4 figure place extracting password from left to right form third stage string, and convert thereof into decimal value U₁; The 5 to 8 figure place extracting password from left to right forms fourth stage string, and converts thereof into decimal value U₂;

Extract the 14th figure place of password from left to right, and convert thereof into decimal value U₃; Extract the 13rd figure place of password from left to right, and convert thereof into decimal value U₄;

B2, choose region T to be changed_{R, t}, r, t are positive integer and 1��r��16,1��t��16:

CalculateObtain r, calculateObtain t; Value according to r and t chooses region T to be changed_{R, t};

B3, calculating U₃₁=U₃+ 1 obtains U₃₁, calculate U₄₁=U₄+ 1 obtains U₄₁; Described 1��U₃₁�� 16, described 1��U₄₁�� 16;

Calculate $T_{p,q}=\left\{\begin{array}{ccccc}{T}_{r+1,t+1}& if& r\&GreaterEqual;U_{31}& and& t\&GreaterEqual;U_{41}\\ T_{r+1,t-1}& if& r\&GreaterEqual;U_{31}& and& t<U_{41}\\ T_{r-1,t+1}& if& r<U_{31}& and& t\&GreaterEqual;U_{41}\\ T_{r-1,t-1}& if& r<U_{31}& and& t<U_{41}\end{array}\right.$ Obtain the 2nd target area T_{P, q}; Described 1��p��16, described 1��q��16;

B4, selection T_{P, q}Corresponding encryption module, and this encryption module is decrypted: the 3rd row of the first row of this encryption module and this encryption module is replaced, the four lines of the 2nd row of this encryption module and this encryption module is replaced;

B5, judgementWhether with T_{P, q}It is positioned at same encryption module; WhenWith T_{P, q}When being positioned at same encryption module, perform step B6; WhenWith T_{P, q}Not when same encryption module, willPlace encryption module is decrypted: willThe first row of place encryption module and the 3rd row of this encryption module are replaced, will2nd row of place encryption module and the four lines of this encryption module are replaced, and then perform step B6;

B6, by T_{R, t}With T_{P, q}Replace;

The conversion of described rgb value carries out according to the following steps:

The the 9th and the 10th figure place extracting password from left to right forms Pyatyi string, and converts thereof into decimal value U₅; The the 11st and the 12nd figure place extracting password from left to right forms the 6th grade of string, and converts thereof into decimal value U₆; The the 13rd and the 14th figure place extracting password from left to right forms the 7th grade of string, and converts thereof into decimal value U₇;

S6, carry out rgb value coupling:

Selected pixels point1��i��a, 1��j��a, and i, j, a be positive integer; WillR value, G value and B value respectively with U₅��U₆And U₇Contrast; JudgeR value whether equal U₅, whenR value be not equal to U₅Time, terminate deciphering; WhenR value equal U₅Time, judgeG value whether equal U₆; WhenG value be not equal to U₆Time, terminate deciphering; WhenG value equal U₆Time, judgeB value whether equal U₇; WhenB value be not equal to U₇Time, terminate deciphering; WhenB value whether equal U₇Time, perform step S7;

S7, successively judge first encryption module to the 4th encryption module, whether be decrypted; The encryption module not being decrypted is decrypted:

3rd row of the first row of non-enabling decryption of encrypted module and this encryption module is replaced, the four lines of the 2nd row of non-enabling decryption of encrypted module and this encryption module is replaced.

Adopt above technical scheme, it is possible to according to user's facial image adaptive generation password, and formation speed is fast, and can be encrypted in conjunction with the codon pair image of generation, so that the facial image stored is protected. Even if the data on backstage are stolen, the safety of whole system and car door opening control method also can be ensured. Meanwhile, user carries out Bluetooth pairing by password and the wireless security system generated, and carries out face coupling again after Bluetooth matching success, and then untie car door lock, comparing existing car door opening control mode, safer, bluetooth is once match after successfully, once corresponding Bluetooth signal be detected, later change can be dynamically connected certainly, owing to Bluetooth transmission is apart from short, therefore can expand and realize after car door, directly carry out recognition of face, improve ease of use further.

Preferably, it is characterized in that: described steps A 7 is chosen described pixel P_ijThe region T at place_{M, n}Carry out according to the following steps:

CalculateObtain m, calculateObtain n; Value chosen area T according to m and n_{M, n}��

Preferably, in steps A 1, obtain, by image capture device, the square facial image that resolving power is a*a and carry out according to the following steps:

Obtaining resolving power by image capture device is the facial image of a*b, and a is the pixel quantity of horizontal direction, and b is the pixel quantity of vertical direction;

Judge whether a > b;

As a > b time, calculate W₁=a-b, obtains number W to be increased₁, then vertically add W₁Individual rgb value is the pixel of 0,0,0, then performs steps A 2;

When a < during b, calculates W₂=b-a, obtains number W to be increased₂, then add W in the horizontal direction₂Individual rgb value is the pixel of 0,0,0, and by the numerical value assignment of b to a, then performs steps A 2;

As a=b, perform steps A 2.

The invention has the beneficial effects as follows: the present invention can according to user's facial image adaptive generation password, and password formation speed is fast, and can be encrypted in conjunction with the codon pair image of generation, to be protected by image. The present invention does not need additionally image to be carried out artificial setting code, but automatically generate unique password by facial image, this password privacy degrees height and the restructuring with image adapt, later stage is when deciphering, image decryption can be directly carried out according to password, compared with traditional image decryption mode, the present invention need not retrodict according to ciphering process, it is to increase the security of image encryption. Meanwhile, user carries out Bluetooth pairing by password and the wireless security system generated, and carries out face coupling again, and then unties car door lock, compare existing car door opening control mode after Bluetooth matching success, safer.

Accompanying drawing explanation

Fig. 1 is the schematic circuit diagram of wireless security system of the present invention.

Embodiment

Below in conjunction with drawings and Examples, the invention will be further described:

As shown in Figure 1, a kind of wireless security system, described automobile wireless safety-protection system comprises image capture device 1, bluetooth transceiver module 2, first wireless signal transceiver module 3, the 2nd wireless signal transceiver module 4, controller 5 and electronics car door lock 6; The signal output terminal of described image capture device 1 connects the signal input terminus of described controller 5; Described controller 5 is bi-directionally connected with described bluetooth transceiver module 2; Described controller 5 and the first wireless signal transceiver module 3 are bi-directionally connected, and it is mutual that described first wireless signal transceiver module 3 and the 2nd wireless signal transceiver module 4 carry out wireless data, and described 2nd wireless signal transceiver module 4 is bi-directionally connected with upper computer 7; The control signal output terminal of described controller 5 connects the control signal input terminus of described electronics car door lock 6; In the present embodiment, image capture device is pinhole cameras. In the present embodiment, upper computer is computer. In the present embodiment, electronics car door lock 6 comprises electronic switch, rly. and machinery knocker, the control signal input port of electronic switch and the input interface of electronics car door lock, the control signal output terminal of described controller connects the control signal input terminus of described electronic switch, the source electrode of electronic switch and anode are connected with the positive pole of vehicle-mounted 24V volts DS, the drain electrode of electronic switch, namely negative electrode is connected with the positive pole of rly., the negative pole of rly. is connected with the negative pole of vehicle-mounted 24V volts DS, the action of rly. iron core servounit knocker. Described controller control electronics car door lock is opened as prior art, does not repeat them here.

A kind of car door opening control method based on wireless security system comprises the following steps:

Step one, obtain user's facial image and carry out storage encryption.

Step 2, being matched by bluetooth transceiver module 2 and user mobile phone, user inputs unlocking pin;

Step 3, gather the facial image close to car door person by image capture device 1, obtain image to be matched; Described close to car door person be the successful user of Bluetooth matching.

Step 4, to described in step one store face encryption image be decrypted.

Step 5, the image to be matched obtained by image capture device 1 mate with the facial image after deciphering; When the match is successful for the facial image after the image to be matched that image capture device 1 obtains with deciphering, upper computer 7 sends a signal to controller 5, and controller 5 transmits control signal and makes it open to described electronics car door lock 6; Terminate when the image to be matched that image capture device 1 obtains mates unsuccessful with the facial image after deciphering. In the present embodiment, the match is successful for facial image after image to be matched and deciphering for half or more of face image pixel point number after the facial image same pixel point after image to be matched and deciphering reaches deciphering is successfully, in other embodiments, facial image after image to be matched and deciphering the match is successful can also be image to be matched with decipher after facial image completely mutually equal, image to be matched mates for ripe prior art with the facial image after deciphering, it is not the inventive point of the present invention, does not repeat them here.

Obtain user's facial image described in step one and carry out in storage encryption, the encryption of user's facial image is carried out according to the following steps:

Steps A 1, obtained resolving power by image capture device be the square facial image of a*a, and described a is positive integer;

Steps A 2, to set any pixel in described facial image be P_ij, obtain pixel P_ijRgb value, described i, j are positive integer, and 1��i��a, 1��j��a;

Steps A 3, by pixel P_ijR value, G value and B value be converted to corresponding hexadecimal values respectively;

Judge pixel P_ijSexadecimal number system R value, sexadecimal number system G value and sexadecimal number system B value whether reach two;

As pixel P_ijSexadecimal number system R value, sexadecimal number system G value or sexadecimal number system B value less than two time, add a character G at this less than the sexadecimal number system value left side of two, to form pixel P_ijTwo R value character strings, two G value character strings and two B value character strings, then perform steps A 4; As pixel P_ijSexadecimal number system R value, sexadecimal number system G value or sexadecimal number system B value be when reaching two, performs steps A 4;

Steps A 4, by pixel P_ijTwo R value character strings, two G value character strings and two B value character strings are arranged in order from left to right and form first step string;

Steps A 5, the hexadecimal values that i and j is converted to respectively correspondence;

Judge whether the sexadecimal number system value of i or the sexadecimal number system value of j reach four; When the sexadecimal number system value of i or the sexadecimal number system value of j are less than four, add character G at this less than the sexadecimal number system value left side of four, with four character strings of four character strings and j that form i, then perform steps A 6; When the sexadecimal number system value of i or the sexadecimal number system value of j reach four, perform steps A 6;

Steps A 6, the left side that the four of j character strings are added to described first step string, and the four of i character strings are added to the left side of four character strings of described j, to form second stage string;

Steps A 7, described facial image is divided into 16*16 square area $\left\{\begin{array}{cccc}{T}_{1,1}& T_{1,2}& ......& T_{1,16}\\ T_{2,1}& T_{2,2}& ......& T_{2,16}\\ ......& ......& ......& ......\\ T_{16,1}& T_{16,2}& ......& T_{16,16}\end{array}\right\},$ Choose described pixel P_ijThe region T at place_{M, n}, m, n are positive integer and 1��m��16,1��n��16;

Steps A 8, judge whether second stage string has character G; When comprising character G in the 2nd string, being replaced by the character G in the string of the second stage is 0, then performs steps A 9; When the 2nd string does not have character G, perform steps A 9;

Steps A 9, the figure place last setting described second stage string are Q₁, the figure place second from the bottom setting described second stage string is Q₂;

By Q₁And Q₂Be converted to decimal value respectively; Calculate Q₁₁=Q₁+ 1 obtains Q₁₁, calculate Q₂₁=Q₂+ 1 obtains Q₂₁; Described 1��Q₁₁�� 16, described 1��Q₂₁�� 16;

Calculate $T_{x,y}=\left\{\begin{array}{ccccc}{T}_{m+1,n+1}& if& m\&GreaterEqual;Q_{11}& and& n\&GreaterEqual;Q_{21}\\ T_{m+1,n-1}& if& m\&GreaterEqual;Q_{11}& and& n<Q_{21}\\ T_{m-1,n+1}& if& m<Q_{11}& and& n\&GreaterEqual;Q_{21}\\ T_{m-1,n-1}& if& m<Q_{11}& and& n<Q_{21}\end{array}\right.$ Obtain the first target area T_{X, y};

By T_{M, n}With T_{X, y}Replace;

Steps A 10, the first row region and territory, zone are replaced; 2nd row region and four lines region are replaced; Fifth line region and the 7th row region are replaced; 6th row region and the 8th row region are replaced; 9th row region and the tenth a line region are replaced; Tenth row region and the 12 row region are replaced; Tenth territory, zone and the tenth five-element region are replaced; Tenth four lines region and the 16 row region are replaced;

Described second stage string is the unlocking pin in described step 2;

The face encryption image stored is decrypted by step 4 and carries out according to the following steps:

S1, encrypted image is divided into 16*16 square area $\left\{\begin{array}{cccc}{T}_{1,1}& T_{1,2}& ......& T_{1,16}\\ T_{2,1}& T_{2,2}& ......& T_{2,16}\\ ......& ......& ......& ......\\ T_{16,1}& T_{16,2}& ......& T_{16,16}\end{array}\right\},$ The first row to four lines region is the first encryption module, fifth line to the 8th row region be the 2nd encryption module, the 9th walk to the 12 row region be the 3rd encryption module, the 13 walk to the 16 row region be the 4th encryption module;

S2, the password receiving user's input;

Whether S3, the password judging described user and inputting are 14 figure place strings; When the password of user's input is 14 figure place string, perform step S4; When the password of user's input is not 14 figure place string, returns and perform step S2;

S4, judge input password in whether have character G; When comprising character G in password, being replaced by the character G in password is 0, then performs step S5; When password does not have character G, perform step S5;

S5, parallel carry out region determine and rgb value conversion;

Described region is determined to carry out according to the following steps:

B1, the 1 to 4 figure place extracting password from left to right form third stage string, and convert thereof into decimal value U₁; The 5 to 8 figure place extracting password from left to right forms fourth stage string, and converts thereof into decimal value U₂;

Extract the 14th figure place of password from left to right, and convert thereof into decimal value U₃; Extract the 13rd figure place of password from left to right, and convert thereof into decimal value U₄;

B2, choose region T to be changed_{R, t}, r, t are positive integer and 1��r��16,1��t��16:

CalculateObtain r, calculateObtain t; Value according to r and t chooses region T to be changed_{R, t};

B3, calculating U₃₁=U₃+ 1 obtains U₃₁, calculate U₄₁=U₄+ 1 obtains U₄₁; Described 1��U₃₁�� 16, described 1��U₄₁�� 16;

Calculate $T_{p,q}=\left\{\begin{array}{ccccc}{T}_{r+1,t+1}& if& r\&GreaterEqual;U_{31}& and& t\&GreaterEqual;U_{41}\\ T_{r+1,t-1}& if& r\&GreaterEqual;U_{31}& and& t<U_{41}\\ T_{r-1,t+1}& if& r<U_{31}& and& t\&GreaterEqual;U_{41}\\ T_{r-1,t-1}& if& r<U_{31}& and& t<U_{41}\end{array}\right.$ Obtain the 2nd target area T_{P, q}; Described 1��p��16, described 1��q��16;

B4, selection T_{P, q}Corresponding encryption module, and this encryption module is decrypted: the 3rd row of the first row of this encryption module and this encryption module is replaced, the four lines of the 2nd row of this encryption module and this encryption module is replaced;

B5, judgementWhether with T_{P, q}It is positioned at same encryption module; WhenWith T_{P, q}When being positioned at same encryption module, perform step B6; WhenWith T_{P, q}Not when same encryption module, willPlace encryption module is decrypted: willThe first row of place encryption module and the 3rd row of this encryption module are replaced, will2nd row of place encryption module and the four lines of this encryption module are replaced, and then perform step B6;

B6, by T_{R, t}With T_{P, q}Replace;

The conversion of described rgb value carries out according to the following steps:

The the 9th and the 10th figure place extracting password from left to right forms Pyatyi string, and converts thereof into decimal value U₅; The the 11st and the 12nd figure place extracting password from left to right forms the 6th grade of string, and converts thereof into decimal value U₆; The the 13rd and the 14th figure place extracting password from left to right forms the 7th grade of string, and converts thereof into decimal value U₇;

S6, carry out rgb value coupling:

Selected pixels point1��i��a, 1��j��a, and i, j, a be positive integer; WillR value, G value and B value respectively with U₅��U₆And U₇Contrast; JudgeR value whether equal U₅, whenR value be not equal to U₅Time, terminate deciphering; WhenR value equal U₅Time, judgeG value whether equal U₆; WhenG value be not equal to U₆Time, terminate deciphering; WhenG value equal U₆Time, judgeB value whether equal U₇; WhenB value be not equal to U₇Time, terminate deciphering; WhenB value whether equal U₇Time, perform step S7;

S7, successively judge first encryption module to the 4th encryption module, whether be decrypted; The encryption module not being decrypted is decrypted:

3rd row of the first row of non-enabling decryption of encrypted module and this encryption module is replaced, the four lines of the 2nd row of non-enabling decryption of encrypted module and this encryption module is replaced.

In the present embodiment, described steps A 7 is chosen described pixel P_ijThe region T at place_{M, n}Carry out according to the following steps:

CalculateObtain m, calculateObtain n; Value chosen area T according to m and n_{M, n}��

In the present embodiment, in steps A 1, obtain, by image capture device, the square facial image that resolving power is a*a and carry out according to the following steps:

Obtaining resolving power by image capture device is the facial image of a*b, and a is the pixel quantity of horizontal direction, and b is the pixel quantity of vertical direction;

Judge whether a > b;

As a > b time, calculate W₁=a-b, obtains number W to be increased₁, then vertically add W₁Individual rgb value is the pixel of 0,0,0, then performs steps A 2;

When a < during b, calculates W₂=b-a, obtains number W to be increased₂, then add W in the horizontal direction₂Individual rgb value is the pixel of 0,0,0, and by the numerical value assignment of b to a, then performs steps A 2;

As a=b, perform steps A 2.

Below the preferred embodiment of the present invention is described in detail. It is to be understood that the those of ordinary skill of this area just can make many modifications and variations according to the design of the present invention without the need to creative work. Therefore, the technical scheme that all technician in the art can be obtained by logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology, all should by the determined protection domain of claim book.

Claims (3)

1. the car door opening control method based on wireless security system, described automobile wireless safety-protection system comprises image capture device (1), bluetooth transceiver module (2), the first wireless signal transceiver module (3), the 2nd wireless signal transceiver module (4), controller (5) and electronics car door lock (6); The signal output terminal of described image capture device (1) connects the signal input terminus of described controller (5); Described controller (5) and described bluetooth transceiver module (2) are bi-directionally connected; Described controller (5) and the first wireless signal transceiver module (3) are bi-directionally connected, it is mutual that described first wireless signal transceiver module (3) and the 2nd wireless signal transceiver module (4) carry out wireless data, and described 2nd wireless signal transceiver module (4) and upper computer (7) are bi-directionally connected; The control signal output terminal of described controller (5) connects the control signal input terminus of described electronics car door lock (6); It is characterized in that comprising the following steps:

Step one, obtain user's facial image and carry out storage encryption;

Step 2, being matched by bluetooth transceiver module (2) and user mobile phone, user inputs unlocking pin;

Step 3, by image capture device (1) gather facial image, obtain image to be matched;

Step 4, to store face encryption image be decrypted;

Step 5, the image to be matched obtained by image capture device (1) mate with the facial image after deciphering; When the match is successful for the facial image after the image to be matched that image capture device (1) obtains with deciphering, upper computer (7) sends a signal to controller (5), and controller (5) transmits control signal and makes it open to described electronics car door lock (6); Terminate when the image to be matched that image capture device (1) obtains mates unsuccessful with the facial image after deciphering;

Obtain user's facial image described in step one and carry out in storage encryption, the encryption of user's facial image is carried out according to the following steps:

Steps A 1, obtained resolving power by image capture device be the square facial image of a*a, and described a is positive integer;

Steps A 2, to set any pixel in described facial image be P_ij, obtain pixel P_ijRgb value, described i, j are positive integer, and 1��i��a, 1��j��a;

Steps A 3, by pixel P_ijR value, G value and B value be converted to corresponding hexadecimal values respectively;

Judge pixel P_ijSexadecimal number system R value, sexadecimal number system G value and sexadecimal number system B value whether reach two;

As pixel P_ijSexadecimal number system R value, sexadecimal number system G value or sexadecimal number system B value less than two time, add a character G at this less than the sexadecimal number system value left side of two, to form pixel P_ijTwo R value character strings, two G value character strings and two B value character strings, then perform steps A 4; As pixel P_ijSexadecimal number system R value, sexadecimal number system G value or sexadecimal number system B value be when reaching two, performs steps A 4;

Steps A 4, by pixel P_ijTwo R value character strings, two G value character strings and two B value character strings are arranged in order from left to right and form first step string;

Steps A 5, the hexadecimal values that i and j is converted to respectively correspondence;

Judge whether the sexadecimal number system value of i or the sexadecimal number system value of j reach four; When the sexadecimal number system value of i or the sexadecimal number system value of j are less than four, add character G at this less than the sexadecimal number system value left side of four, with four character strings of four character strings and j that form i, then perform steps A 6; When the sexadecimal number system value of i or the sexadecimal number system value of j reach four, perform steps A 6;

Steps A 6, the left side that the four of j character strings are added to described first step string, and the four of i character strings are added to the left side of four character strings of described j, to form second stage string;

Steps A 7, described facial image is divided into 16*16 square area $\left\{\begin{array}{cccc}{T}_{1,1}& T_{1,2}& ......& T_{1,16}\\ T_{2,1}& T_{2,2}& ......& T_{2,16}\\ ......& ......& ......& ......\\ T_{16,1}& T_{16,2}& ......& T_{16,16}\end{array}\right\},$ Choose described pixel P_ijThe region T at place_{M, n}, m, n are positive integer and 1��m��16,1��n��16;

Steps A 8, judge whether second stage string has character G; When comprising character G in the 2nd string, being replaced by the character G in the string of the second stage is 0, then performs steps A 9; When the 2nd string does not have character G, perform steps A 9;

Steps A 9, the figure place last setting described second stage string are Q₁, the figure place second from the bottom setting described second stage string is Q₂;

By Q₁And Q₂Be converted to decimal value respectively; Calculate Q₁₁=Q₁+ 1 obtains Q₁₁, calculate Q₂₁=Q₂+ 1 obtains Q₂₁; Described 1��Q₁₁�� 16, described 1��Q₂₁�� 16;

Calculate $T_{x,y}=\left\{\begin{array}{ccccc}{T}_{m+1,n+1}& if& m\&GreaterEqual;Q_{11}& and& n\&GreaterEqual;Q_{21}\\ T_{m+1,n-1}& if& m\&GreaterEqual;Q_{11}& and& n<Q_{21}\\ T_{m-1,n+1}& if& m<Q_{11}& and& n\&GreaterEqual;Q_{21}\\ T_{m-1,n-1}& if& m<Q_{11}& and& n<Q_{21}\end{array}\right.$ Obtain the first target area T_{X, y};

By T_{M, n}With T_{X, y}Replace;

Steps A 10, the first row region and territory, zone are replaced; 2nd row region and four lines region are replaced; Fifth line region and the 7th row region are replaced; 6th row region and the 8th row region are replaced; 9th row region and the tenth a line region are replaced; Tenth row region and the 12 row region are replaced; Tenth territory, zone and the tenth five-element region are replaced; Tenth four lines region and the 16 row region are replaced;

Described second stage string is the unlocking pin in described step 2;

The face encryption image stored is decrypted by step 4 and carries out according to the following steps:

S1, encrypted image is divided into 16*16 square area $\left\{\begin{array}{cccc}{T}_{1,1}& T_{1,2}& ......& T_{1,16}\\ T_{2,1}& T_{2,2}& ......& T_{2,16}\\ ......& ......& ......& ......\\ T_{16,1}& T_{16,2}& ......& T_{16,16}\end{array}\right\},$ The first row to four lines region is the first encryption module, fifth line to the 8th row region be the 2nd encryption module, the 9th walk to the 12 row region be the 3rd encryption module, the 13 walk to the 16 row region be the 4th encryption module;

S2, the password receiving user's input;

Whether S3, the password judging described user and inputting are 14 figure place strings; When the password of user's input is 14 figure place string, perform step S4; When the password of user's input is not 14 figure place string, returns and perform step S2;

S4, judge input password in whether have character G; When comprising character G in password, being replaced by the character G in password is 0, then performs step S5; When password does not have character G, perform step S5;

S5, parallel carry out region determine and rgb value conversion;

Described region is determined to carry out according to the following steps:

B1, the 1 to 4 figure place extracting password from left to right form third stage string, and convert thereof into decimal value U₁; The 5 to 8 figure place extracting password from left to right forms fourth stage string, and converts thereof into decimal value U₂;

Extract the 14th figure place of password from left to right, and convert thereof into decimal value U₃; Extract the 13rd figure place of password from left to right, and convert thereof into decimal value U₄;

B2, choose region T to be changed_{R, t}, r, t are positive integer and 1��r��16,1��t��16:

CalculateObtain r, calculateObtain t; Value according to r and t chooses region T to be changed_{R, t};

B3, calculating U₃₁=U₃+ 1 obtains U₃₁, calculate U₄₁=U₄+ 1 obtains U₄₁; Described 1��U₃₁�� 16, described 1��U₄₁�� 16;

Calculate $T_{p,q}=\left\{\begin{array}{ccccc}{T}_{r+1,t+1}& if& r\&GreaterEqual;U_{31}& and& t\&GreaterEqual;U_{41}\\ T_{r+1,t-1}& if& r\&GreaterEqual;U_{31}& and& t<U_{41}\\ T_{r-1,t+1}& if& r<U_{31}& and& t\&GreaterEqual;U_{41}\\ T_{r-1,t-1}& if& r<U_{31}& and& t<U_{41}\end{array}\right.$ Obtain the 2nd target area T_{P, q}; Described 1��p��16, described 1��q��16;

B4, selection T_{P, q}Corresponding encryption module, and this encryption module is decrypted: the 3rd row of the first row of this encryption module and this encryption module is replaced, the four lines of the 2nd row of this encryption module and this encryption module is replaced;

B5, judgementWhether with T_{P, q}It is positioned at same encryption module; WhenWith T_{P, q}When being positioned at same encryption module, perform step B6; WhenWith T_{P, q}Not when same encryption module, willPlace encryption module is decrypted: willThe first row of place encryption module and the 3rd row of this encryption module are replaced, will2nd row of place encryption module and the four lines of this encryption module are replaced, and then perform step B6;

B6, by T_{R, t}With T_{P, q}Replace;

The conversion of described rgb value carries out according to the following steps:

The the 9th and the 10th figure place extracting password from left to right forms Pyatyi string, and converts thereof into decimal value U₅; The the 11st and the 12nd figure place extracting password from left to right forms the 6th grade of string, and converts thereof into decimal value U₆; The the 13rd and the 14th figure place extracting password from left to right forms the 7th grade of string, and converts thereof into decimal value U₇;

S6, carry out rgb value coupling:

Selected pixels point1��i��a, 1��j��a, and i, j, a be positive integer; WillR value, G value and B value respectively with U₅��U₆And U₇Contrast; JudgeR value whether equal U₅, whenR value be not equal to U₅Time, terminate deciphering; WhenR value equal U₅Time, judgeG value whether equal U₆; WhenG value be not equal to U₆Time, terminate deciphering; WhenG value equal U₆Time, judgeB value whether equal U₇; WhenB value be not equal to U₇Time, terminate deciphering; WhenB value whether equal U₇Time, perform step S7;

S7, successively judge first encryption module to the 4th encryption module, whether be decrypted; The encryption module not being decrypted is decrypted:

3rd row of the first row of non-enabling decryption of encrypted module and this encryption module is replaced, the four lines of the 2nd row of non-enabling decryption of encrypted module and this encryption module is replaced.

2., as claimed in claim 1 based on the car door opening control method of wireless security system, it is characterized in that: described steps A 7 is chosen described pixel P_ijThe region T at place_{M, n}Carry out according to the following steps:

CalculateObtain m, calculateObtain n; Value chosen area T according to m and n_{M, n}��

3. as claimed in claim 1 based on the car door opening control method of wireless security system, it is characterized in that: in steps A 1, obtain, by image capture device, the square facial image that resolving power is a*a and carry out according to the following steps:

Obtaining resolving power by image capture device is the facial image of a*b, and a is the pixel quantity of horizontal direction, and b is the pixel quantity of vertical direction;

Judge whether a > b;

As a > b time, calculate W₁=a-b, obtains number W to be increased₁, then vertically add W₁Individual rgb value is the pixel of 0,0,0, then performs steps A 2;

When a < during b, calculates W₂=b-a, obtains number W to be increased₂, then add W in the horizontal direction₂Individual rgb value is the pixel of 0,0,0, and by the numerical value assignment of b to a, then performs steps A 2;

As a=b, perform steps A 2.