Summary of the invention
In the presence of overcoming the shortcomings of the prior art, the present invention provides a kind of certificate chain electronic certificate system, solvesExisting electronic certificate is easy to be lost, verifying is difficult, easy the problem of being forged and being tampered.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows:
A kind of certificate chain electronic certificate system, the electronic certificate system include electronic certificate terminal and electronic certificate server, instituteIt states electronic certificate terminal and is provided with information acquisition module, more certificate center modules, multicenter authentication module and multicenter storage mouldBlock；
The information acquisition module is connected with identity information acquisition device, biomedical information acquisition device and certificate-information acquiring device, describedBiomedical information acquisition device includes face acquisition unit and fingerprint collecting unit；The information acquisition module controls identity information acquisitionDevice, biomedical information acquisition device and certificate-information acquiring device carry out the acquisition of information；The identity information acquisition device is for acquiring bodyPart information, the biomedical information acquisition device is for acquiring biological information, and the certificate-information acquiring device is for acquiring certificate information；
The multicenter authentication module includes identity authenticating unit, biometric verification unit and certificate verification unit, and the identity is testedDemonstrate,prove comparison of the unit for the identity information of identity information acquisition device acquisition and the face information of biomedical information acquisition device acquisition, instituteState comparison of the biometric verification unit for the finger print information that the finger print information of biomedical information acquisition device acquisition and user are reserved；It is describedThe audit for the certificate information that certificate verification unit is used to acquire certificate-information acquiring device；
The multicenter memory module is used to store the acquisition information of information acquisition module, the verifying note of multicenter authentication moduleRecord；
The electronic certificate server obtains the electronic identifications ID of user, place work unit by more certificate center modulesElectronics license identify ID, the electronics license of the electronic identifications ID of user, place work unit is identified into ID, electronic certificateThe job information to be recorded generates unique electronics card two dimensional code by Encryption Algorithm；By the electronic certificate two dimensional code of generationReturn to electronic certificate terminal.
Further, the electronic certificate includes that electronic work card, electronic identity card for students, campus electronics all-purpose card, electronics move backNot card and electronics sergeant card.
Further, the Encryption Algorithm uses symmetric encipherment algorithm aes algorithm.
Further, the multicenter memory module is stored using distributed storage mode.
Further, the electronic certificate terminal includes processor, memory, and the information acquisition module, multicenter are testedIt demonstrate,proves module and the storage of multicenter memory module on a memory, and can be run in the processor.
Further, the identity information acquisition device, biomedical information acquisition device and certificate-information acquiring device are demonstrate,proved with electronicsPart terminal passes through the specific installation being electrically connected or the component being integrated into a whole with electronic certificate terminal device.
Further, the electronic certificate system register method the following steps are included:
S1, user enter electronic certificate system by electronic certificate terminal, apply for the registration of；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, are acquired by faceUnit obtains face information, and extracts face characteristic information, obtains finger print information, and the spy that takes the fingerprint by fingerprint collecting unitReference breath initiates identity information and biometric information verification request to multicenter authentication module；
S3, multicenter authentication module the identity authenticating unit face information and identity card that will acquire on human face photo comparedIt is right, it is stored by multicenter memory module and saves comparison record, biometric verification unit will verify finger print information, with userReserved finger print information is compared, and saves verifying record by multicenter memory module；
If S4, identity information and biometric information verification pass through, adopted by the certificate-information acquiring device that information acquisition module connectsCollect the certificate information of unit one belongs to, and initiates checking request to multicenter authentication module；The certificate verification of multicenter authentication moduleUnit will verify the certificate information of acquisition, save verifying record；If license is verified, verifying record is passed throughVerification result is returned to electronic certificate terminal by the storage of multicenter memory module；
S5, user initiate checking request by electronic certificate terminal typing job information, and to electronic certificate server；Electronics cardPart server will audit the job information recorded on electronic certificate, if with the information in unit one belongs to's filing databaseMatch, then audit passes through, and saves audit logging；
S6, electronic certificate server obtain the electronic identifications ID of user, the electricity of unit one belongs to by more certificate center modulesSub- license identifies ID, and electronics license mark ID, the electronics card of the electronic identifications ID of user, unit one belongs to be recordedInformation generates unique electronic certificate two dimensional code by Encryption Algorithm, and electronic certificate two dimensional code is returned to electronic certificate terminal；
S7, user receive the prompting message that registration is completed in electronic certificate terminal, then succeed in registration.
The electronic identifications ID is identification card number or employee's card number or student's identity card number or sergeant's card number.
Further, the electronic certificate system variation the following steps are included:
S1, user enter electronic certificate system, application change by electronic certificate terminal；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, pass through biological informationCollector obtains face characteristic information, fingerprint feature information, and initiates identity information and biological information to multicenter authentication moduleChecking request；
S3, multicenter authentication module the identity authenticating unit face information and identity information that obtain biomedical information acquisition device inHuman face photo on identity card is compared, and is stored by multicenter memory module and saves comparison record, and biometric verification unit willFinger print information is verified, is matched with the finger print information of reserved user to carry out authentication, and deposited by multicenterIt stores up module and saves verifying record；If identity information is proved to be successful with biological information, user's real name verification passes through, and will verifyRecord returns to electronic certificate terminal by multicenter memory module distributed storage, by verification result；
S4, user need job information to be changed by electronic certificate system typing, and initiate to change to electronic certificate serverSignal auditing request；Electronic certificate server will audit change data, save audit logging, will if audit passes throughAuditing result returns to electronic certificate terminal, then electronic certificate change is completed, and electronic certificate server generates the electronics card after changePart；
S5, there is the head of the unit of verifying authorization to enter electronic certificate terminal, identity real name is carried out by multicenter authentication moduleAfter certification, the electronic certificate for being verified user can be verified；
S6, authentication by scanning the side of being verified electronic certificate two dimensional code, available unit one belongs to, the side of being verified information,The identity information of the side of being verified user and the job information for the side of being verified；
S7, electronic certificate server match the job information that decoding obtains with information corresponding in database, ifIt with consistent, is then verified, verification result is returned into electronic certificate terminal；User receives change in electronic certificate terminal and completesPrompting message, then change terminate.
Further, the electronic certificate system authorization method the following steps are included:
S1, user enter electronic certificate system by electronic certificate terminal, and application uses authorization application；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, pass through biological informationCollector successively obtains face characteristic information, fingerprint feature information, and initiates identity information and biology to multicenter authentication moduleInformation verification request；
S3, multicenter authentication module the identity authenticating unit face information and identity card that will acquire on human face photo comparedIt is right, it is stored by multicenter memory module and saves comparison record；Biometric verification unit will verify finger print information, and reservedThe finger print information of user matches, and saves verifying record by multicenter memory module；If identity information and biology letterBreath is verified, then stores verifying record by multicenter memory module, verification result is returned to electronic certificate terminal；
S4, user select licensee, record authorization time and authorization details in electronic certificate terminal, then licensee can makeWith the authorized content of user's electronic certificate；
S5, licensee enter electronic certificate terminal, pass through the biology of information acquisition module typing face information and finger print informationCombined information, and authentication request is initiated to multicenter authentication module；Multicenter authentication module by the face information of acquisition withHuman face photo on identity card is compared, and finger print information is matched with reserved finger print information and carries out authentication, and preservation is testedCard record；
If S6, identity information and biological information are verified, the real-name authentication of licensee passes through, and user can be usedAuthorize the authorized content of electronic certificate；Donor receives the prompting message that authorization is completed in electronic certificate terminal, then authorizes knotBeam.
Further, the electronic certificate system cancellation method the following steps are included:
S1, user enter electronic certificate system by electronic certificate terminal, and electronic certificate is nullified in application；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, pass through biological informationCollector obtains face information and finger print information, and face information, finger print information are transferred to multicenter authentication module, and Xiang DuozhongHeart authentication module initiates identity information and biometric information verification request；
S3, multicenter authentication module the identity authenticating unit face information and identity card that will acquire on human face photo comparedIt is right, it is saved by multicenter memory module and compares record, biometric verification unit will verify finger print information, with reserved fingerLine information is matched, and saves verifying record by multicenter memory module；If identity information and biological information are verifiedPass through, then verifying record is stored by multicenter memory module, verification result is returned into electronic certificate terminal；
S4, user initiate de-registration request in electronic certificate terminal, and electronic certificate server receives de-registration request, will ask to cancellationThe data asked are audited, and the data for nullifying data with database is reserved are matched；If matching is consistent, audit note is savedRecord, then the job information of user will be freezed in electronic certificate system backstage；
S5, user receive the prompting message nullified and completed in electronic certificate terminal, then the cancellation of electronic certificate is completed.
Compared with prior art, the advantageous effect of present invention is that:
The present invention provides a kind of certificate chain electronic certificate system, user initiates to obtain asking for electronic certificate in electronic certificate terminalIt asks, authentication and biometric authentication is carried out to user by multicenter authentication module, is stored and is verified by multicenter memory moduleRecord；Electronic certificate server receives request, and electronic identifications ID, the place of user are obtained by more certificate center modulesThe electronics license of unit identifies ID, and the electronics license of the electronic identifications ID of user, unit one belongs to is identified ID, electronic certificateThe job information to be recorded generates unique electronic certificate two dimensional code by Encryption Algorithm, and operational staff can be real-timeThe true and false of electronic certificate and the identity information of verifying holder are verified, electronic certificate can also be changed, authorized and nullified,Check verifying record and authority record, it is convenient to provide for informatized office work.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.
A kind of certificate chain electronic certificate system, the electronic certificate system include electronic certificate terminal and electronic certificate serviceDevice, the electronic certificate terminal are provided with information acquisition module, more certificate center modules, multicenter authentication module and multicenter and depositStore up module；
The information acquisition module is connected with identity information acquisition device, biomedical information acquisition device and certificate-information acquiring device, describedBiomedical information acquisition device includes face acquisition unit and fingerprint collecting unit；The information acquisition module controls identity information acquisitionDevice, biomedical information acquisition device and certificate-information acquiring device carry out the acquisition of information；The identity information acquisition device is for acquiring bodyPart information, the biomedical information acquisition device is for acquiring biological information, and the certificate-information acquiring device is for acquiring certificate information；
The multicenter authentication module includes identity authenticating unit, biometric verification unit and certificate verification unit, and the identity is testedDemonstrate,prove comparison of the unit for the identity information of identity information acquisition device acquisition and the face information of biomedical information acquisition device acquisition, instituteState comparison of the biometric verification unit for the finger print information that the finger print information of biomedical information acquisition device acquisition and user are reserved；It is describedThe audit for the certificate information that certificate verification unit is used to acquire certificate-information acquiring device；
The multicenter memory module is used to store the acquisition information of information acquisition module, the verifying note of multicenter authentication moduleRecord；
The electronic certificate server obtains the electronic identifications ID of user, place work unit by more certificate center modulesElectronics license identify ID, the electronics license of the electronic identifications ID of user, place work unit is identified into ID, electronic certificateThe job information to be recorded generates unique electronics card two dimensional code by Encryption Algorithm；By the electronic certificate two dimensional code of generationReturn to electronic certificate terminal.
In the present embodiment, the electronic certificate includes electronic work card, electronic identity card for students, electronics retirement card and electronics scholarOfficial's card.
When the electronic certificate is electronic work card, the electronic certificate server obtains work by more certificate center modulesThe electronic identifications ID of author, the electronics license of work unit identify ID, by electronic identifications ID, the job note of workerElectronics license the mark ID, job information of position generate unique electronic work card two dimensional code by Encryption Algorithm；By generationElectronic work card two dimensional code returns to electronic certificate terminal；
When the electronic certificate is electronic identity card for students, the electronic certificate server will obtain student by more certificate center modulesElectronic identifications ID and the electronics license of school identify ID, then electronic certificate server is by the electronic identifications of studentID, school electronics license mark ID, student information generate unique electronic identity card for students two dimensional code by Encryption Algorithm, will give birth toAt electronic identity card for students two dimensional code return to electronic certificate terminal and student；
When the electronic certificate is that electronics retirement is demonstrate,proved, initiate to obtain electronics retirement card request, multicenter by electronic certificate terminalAuthentication module carries out authentication and biometric authentication to user, if being verified, electronic certificate server is by the electronics of userElectronics license the mark ID, retirement information of identity ID, retired unit generate unique electronics retirement by Encryption AlgorithmTwo dimensional code is demonstrate,proved, the electronics retirement card of generation is returned into electronic certificate terminal；
When the electronic certificate is that electronics sergeant demonstrate,proves, initiate to obtain electronics sergeant card request, multicenter by electronic certificate terminalAuthentication module carries out authentication and biometric authentication to sergeant, if being verified, electronic certificate server is by the electronics of sergeantIdentity ID, licence issuing authority electronics license mark ID, army's information unique electronics sergeant generated by Encryption AlgorithmDemonstrate,prove two dimensional code；The electronics sergeant of generation is demonstrate,proved and returns to electronic certificate terminal；
In the present embodiment, the Encryption Algorithm uses symmetric encipherment algorithm aes algorithm.
In the present embodiment, the multicenter memory module is stored using distributed storage mode.
In the present embodiment, the electronic certificate terminal includes processor, memory, the information acquisition module, mostly inHeart authentication module and the storage of multicenter memory module on a memory, and can be run in the processor.Wherein processor andOne or more can be used in memory, and program is stored in memory, and is configured to be executed by processor, processorWhen executing the program, the step of realizing the application method of electronic certificate system.
The electronic certificate terminal device can be portable telephone terminal, desktop PC, notebook, palm PCAnd cloud server etc. calculates equipment.The electronic certificate terminal device may include, but be not limited only to, processor, memory, exampleSuch as described electronic certificate terminal device can also include input-output equipment, network access equipment, bus.The electronic certificateWhen terminal is computer, computer program can be divided into one or more modules in computer, one or more ofModule is stored in the memory, and is executed by the processor, to complete the present invention.One or more of modules canTo be the series of computation machine program instruction section that can complete specific function, which exists for describing the computer programImplementation procedure in the electronic certificate terminal device.For example, the computer program can be divided into information acquisition module,Multicenter authentication module and multicenter memory module.
The processor can be central processing unit (Central Processing Unit, CPU), can also be itHis general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic devicePart, discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processingDevice etc., the processor is the control centre of the electronic certificate terminal device, entirely electric using various interfaces and connectionThe various pieces of sub- certificate terminal device.
The memory can be used for storing the module, and the processor is stored in the memory by operation or executionInterior module, and the data being stored in memory are called, realize the various functions of the electronic certificate.The memory canIt mainly include storing program area and storage data area, wherein storing program area can be needed for storage program area, at least one functionApplication program (such as fingerprint recognition, fingerprint authentication etc.) etc.；Storage data area can be stored to be created according to using for mobile phoneData (such as finger print information, electronics certificate information etc.) etc..In addition, memory may include high-speed random access memory, alsoIt may include nonvolatile memory, such as hard disk, memory, plug-in type hard disk, intelligent memory card (Smart Media Card,SMC), secure digital (Secure Digital, SD) block, flash card (Flash Card), at least one disk memory,Flush memory device or other volatile solid-state parts.
In the present embodiment, the identity information acquisition device, biomedical information acquisition device and certificate-information acquiring device is existing setsStandby or module, the identity information acquisition device, biomedical information acquisition device and certificate-information acquiring device can be, but be not limited only to bodyPart card reader, fingerprint capturer, camera, scanner；The identity information acquisition device, biomedical information acquisition device and certificate letterBreath collector be with electronic certificate terminal pass through the specific installation that is electrically connected or with electronic certificate terminal device be combined into one it is wholeThe component of body.
As shown in Figure 1, the register method of the electronic certificate system the following steps are included:
S1, user enter electronic certificate system by electronic certificate terminal, apply for the registration of；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, are acquired by faceUnit obtains face information, and extracts face characteristic information, obtains finger print information, and the spy that takes the fingerprint by fingerprint collecting unitReference breath initiates identity information and biometric information verification request to multicenter authentication module；
S3, multicenter authentication module the identity authenticating unit face information and identity card that will acquire on human face photo comparedIt is right, it is stored by multicenter memory module and saves comparison record, biometric verification unit will verify finger print information, with userReserved finger print information is compared, and saves verifying record by multicenter memory module；
If S4, identity information and biometric information verification pass through, adopted by the certificate-information acquiring device that information acquisition module connectsCollect the certificate information of unit one belongs to, and initiates checking request to multicenter authentication module；The certificate verification of multicenter authentication moduleUnit will verify the certificate information of acquisition, save verifying record；If license is verified, verifying record is passed throughVerification result is returned to electronic certificate terminal by the storage of multicenter memory module；
S5, user initiate checking request by electronic certificate terminal typing job information, and to electronic certificate server；Electronics cardPart server will audit the job information recorded on electronic certificate, if with the information in unit one belongs to's filing databaseMatch, then audit passes through, and saves audit logging；
S6, electronic certificate server obtain the electronic identifications ID of user, the electricity of unit one belongs to by more certificate center modulesSub- license identifies ID, and electronics license mark ID, the electronics card of the electronic identifications ID of user, unit one belongs to be recordedInformation generates unique electronic certificate two dimensional code by Encryption Algorithm, and electronic certificate two dimensional code is returned to electronic certificate terminal；
S7, user receive the prompting message that registration is completed in electronic certificate terminal, then succeed in registration.
As shown in Fig. 2, the variation of the electronic certificate system the following steps are included:
S1, user enter electronic certificate system, application change by electronic certificate terminal；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, pass through biological informationCollector obtains face characteristic information, fingerprint feature information, and initiates identity information and biological information to multicenter authentication moduleChecking request；
S3, multicenter authentication module the identity authenticating unit face information and identity information that obtain biomedical information acquisition device inHuman face photo on identity card is compared, and is stored by multicenter memory module and saves comparison record, and biometric verification unit willFinger print information is verified, is matched with the finger print information of reserved user to carry out authentication, and deposited by multicenterIt stores up module and saves verifying record；If identity information is proved to be successful with biological information, user's real name verification passes through, and will verifyRecord returns to electronic certificate terminal by multicenter memory module distributed storage, by verification result；
S4, user need job information to be changed by electronic certificate system typing, and initiate to change to electronic certificate serverSignal auditing request；Electronic certificate server will audit change data, save audit logging, will if audit passes throughAuditing result returns to electronic certificate terminal, then electronic certificate change is completed, and electronic certificate server generates the electronics card after changePart；
S5, there is the head of the unit of verifying authorization to enter electronic certificate terminal, identity real name is carried out by multicenter authentication moduleAfter certification, the electronic certificate for being verified user can be verified；
S6, authentication by scanning the side of being verified electronic certificate two dimensional code, available unit one belongs to, the side of being verified information,The identity information of the side of being verified user and the job information for the side of being verified；
S7, electronic certificate server match the job information that decoding obtains with information corresponding in database, ifIt with consistent, is then verified, verification result is returned into electronic certificate terminal；User receives change in electronic certificate terminal and completesPrompting message, then change terminate.
As shown in figure 3, the authorization method of the electronic certificate system the following steps are included:
S1, user enter electronic certificate system by electronic certificate terminal, and application uses authorization application；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, pass through biological informationCollector successively obtains face characteristic information, fingerprint feature information, and initiates identity information and biology to multicenter authentication moduleInformation verification request；
S3, multicenter authentication module the identity authenticating unit face information and identity card that will acquire on human face photo comparedIt is right, it is stored by multicenter memory module and saves comparison record；Biometric verification unit will verify finger print information, and reservedThe finger print information of user matches, and saves verifying record by multicenter memory module；If identity information and biology letterBreath is verified, then stores verifying record by multicenter memory module, verification result is returned to electronic certificate terminal；
S4, user select licensee, record authorization time and authorization details in electronic certificate terminal, then licensee can makeWith the authorized content of user's electronic certificate；
S5, licensee enter electronic certificate terminal, pass through the biology of information acquisition module typing face information and finger print informationCombined information, and authentication request is initiated to multicenter authentication module；Multicenter authentication module by the face information of acquisition withHuman face photo on identity card is compared, and finger print information is matched with reserved finger print information and carries out authentication, and preservation is testedCard record；
If S6, identity information and biological information are verified, the real-name authentication of licensee passes through, and user can be usedAuthorize the authorized content of electronic certificate；Donor receives the prompting message that authorization is completed in electronic certificate terminal, then authorizes knotBeam.
As shown in figure 4, the cancellation method of the electronic certificate system the following steps are included:
S1, user enter electronic certificate system by electronic certificate terminal, and electronic certificate is nullified in application；
S2, the ID card information that user is obtained by the identity information acquisition device that information acquisition module connects, pass through biological informationCollector obtains face information and finger print information, and face information, finger print information are transferred to multicenter authentication module, and Xiang DuozhongHeart authentication module initiates identity information and biometric information verification request；
S3, multicenter authentication module the identity authenticating unit face information and identity card that will acquire on human face photo comparedIt is right, it is saved by multicenter memory module and compares record, biometric verification unit will verify finger print information, with reserved fingerLine information is matched, and saves verifying record by multicenter memory module；If identity information and biological information are verifiedPass through, then verifying record is stored by multicenter memory module, verification result is returned into electronic certificate terminal；
S4, user initiate de-registration request in electronic certificate terminal, and electronic certificate server receives de-registration request, will ask to cancellationThe data asked are audited, and the data for nullifying data with database is reserved are matched；If matching is consistent, audit note is savedRecord, then the job information of user will be freezed in electronic certificate system backstage；
S5, user receive the prompting message nullified and completed in electronic certificate terminal, then the cancellation of electronic certificate is completed.
General processor, digital signal processor (DSP), dedicated integrated electricity can be used in the various modules of the present embodiment descriptionIt is road (ASIC), FPGA field programmable gate array (FPGA) or other programmable logic device, discrete door or transistor logic, discreteHardware component or its any combination for being designed to carry out function described herein realize or execute.General processor can be withIt is microprocessor, but in alternative, which can be any conventional processor, controller, microcontroller or shapeState machine.Processor is also implemented as calculating the combination of equipment, for example, the combination of DSP and microprocessor, multi-microprocessor,The one or more microprocessors to cooperate with DSP core or any other such configuration.
If the integrated module of the electronic certificate terminal device is realized in the form of SFU software functional unit and as independenceProduct when selling or using, can store in a computer readable storage medium.Based on this understanding, of the inventionIt realizes all or part of the process in above-mentioned implementation method, can also instruct relevant hardware come complete by computer programAt the computer program can be stored in a computer readable storage medium, which is being executed by processorWhen, it can be achieved that the step of above-described embodiment.Wherein, the computer program includes computer program code, the computer journeySequence code can be source code form, object identification code form, executable file or certain intermediate forms etc..It is described computer-readableMedium may include: any entity or device, recording medium, USB flash disk, mobile hard that can carry the computer program codeDisk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory(RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It needs to illustrateIt is that the content that the computer-readable medium includes can be fitted according to the requirement made laws in jurisdiction with patent practiceWhen increase and decrease.
It can directly in hardware or be stored in terminal chip in the method for the present embodiment description, it is soft being executed by processorIt is embodied in part module or in combination of the two.Software module can reside in RAM memory, flash memory, ROM memory, depositIn device, hard disk, removable disk or this field in the storage medium of other forms.Exemplary storage medium be coupled to processor withEnable the processor that information is written from the read information or to the storage medium.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,Within the knowledge of a person skilled in the art, it can also make without departing from the purpose of the present invention eachKind variation, various change should all be included in the protection scope of the present invention.