CN201311250Y - Digital electronic detonator and detonating system thereof based on biometric identification technique - Google Patents
Digital electronic detonator and detonating system thereof based on biometric identification technique Download PDFInfo
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- CN201311250Y CN201311250Y CNU2008201241626U CN200820124162U CN201311250Y CN 201311250 Y CN201311250 Y CN 201311250Y CN U2008201241626 U CNU2008201241626 U CN U2008201241626U CN 200820124162 U CN200820124162 U CN 200820124162U CN 201311250 Y CN201311250 Y CN 201311250Y
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Abstract
The utility model discloses a digital electronic detonator and a detonating system thereof based on a biometric identification technique, wherein the digital electronic detonator comprises the detonating system and a group of electronic digital detonator bodies which are detonated by the control of the detonating system; fuses (multiplex lines of power supply and communication) of all electronic digital detonators are connected in parallel with the control output end of the detonating system, the detonating system is provided with a key-press device and a multi-biometric identification unit at the same time, and an ID code which is authorized to detonate the detonator is arranged inside the detonating system; an integrated circuit system and an energy storage capacitor are arranged in each electronic digital detonator body, and a unique appointed ID code is stored in the integrated circuit system of the detonator; the detonator can be correctly detonated only when the unique appointed ID code is accordant with the ID code which is authorized to detonate the detonator; and the control output end of the detonating system is connected with all electronic digital detonators by the multiplex lines of power supply and communication of the detonator.
Description
Technical field
The utility model relates to a kind of digital electric detonator and initiation system based on biological identification technology.
Background technology
Biological recognition system (Biometric Identification Technology) is that biological characteristic is taken a sample, extract its unique feature and change into digital code, and with these codes composition feature templates, when the people carries out authentication alternately with recognition system, recognition system is obtained its feature and is compared with the feature templates in the database, determining whether coupling, thereby this people is accepted or refuses in decision.
Biological identification technology is the recognition technology of the most convenient at present and safety, does not need to remember complex password, also need not carry the thing of key, smart card and so on.The biological identification technology identification be people itself, safe ready.Because everyone biological characteristic has uniqueness and constant over a period to come stability, be difficult for forging and personation.The biological identification technology product is easy to matching computer and safety, monitoring, management system integration by means of modern computer technology, realizes automatic management.
What biometrics identification technology was now commonly used is fingerprint identification and shape of face identification.
Fingerprint recognition: fingerprint has following two outstanding advantages: stability, fingerprint have very strong relative stability.Uniqueness, fingerprint have tangible uniqueness, also can not find two identical people of fingerprint so far.
Shape of face identification: the authentication based on people's face is exactly to utilize computer that given rest image or dynamic image sequence are analyzed, people's face feature and the relation between them are discerned, therefrom extract effective recognition information, come a technology of " identification " or " affirmation " one or more people's identity based on existing face database.
Though fingerprint identification technology is suitable maturation at present, but can't provide clearly can be by the fingerprint of computer identification for 2% the people of still having an appointment according to statistics (such as finger injuries or do not have the disabled person of palm), the multi-biological characteristic recognition technology for the problem that solves this type of provides may.
Summary of the invention
The purpose of this utility model provides a kind of digital electric detonator and initiation system based on biological identification technology.
For achieving the above object, the utility model is taked following design:
A kind of electronic digital detonator and initiation system based on biological identification technology, the one group of electronic digital detonator body that comprises detonator detonation system and ignited by its control, the lead-in wire of each electronic digital detonator (communication and the multiplexing line of powering) is in parallel with the control output end of detonator detonation system, described detonator detonation system has key device and many bio-identification cell arrangement, and detonator detonation system inside is equipped with sets the IC chip of authorizing detonating primer ID sign indicating number;
Described each electronic digital detonator body is built-in with IC system and the storage capacitor that stores unique designated ID sign indicating number;
The control output end of detonator detonation system links to each other with each electronic digital detonator with the multiplexing lead-in wire of communication by the detonator power supply.
Described many bio-identification cell arrangement is Fingerprint Identification Unit and shape of face identifier.
Use single living creature characteristic recognition system can run into sensor noise usually, the information of collection can make the mistake refuses to know etc.The utility model adopts " fingerprint and the shape of face " multi-biological characteristic recognition system then can be by merging the influence that the various features of body one by one alleviates these problems.In the performance performance, the multi-biological characteristic recognition system can reach the height that the identification of single creature feature is difficult to reach simultaneously.Recognition of face and fingerprint recognition have obtained application in many biological recognition systems, the fusion of the two can effectively improve the performance of identification.
Multi-biological characteristic identification has following advantage:
1) multi-biological characteristic identification can provide higher security, owing to introduced a plurality of biological characteristics or sample, the system probability of errors of making reduces greatly.
2) multi-biological characteristic identification can provide more flexible level of security to select to the user.Multi-biological characteristic identification can provide the selection of different level of securitys to the user, makes the user find the solution of suitable its demand between security and convenience.
3) multi-biological characteristic identification has adaptability widely.Introduce a plurality of biological characteristics the inconvenience that can not provide the such problem of fingerprint clearly to bring to system and user such as the user can effectively be provided.To the disabled person of some biological characteristic can not be provided, the multi-biological characteristic recognition system then can be avoided their refusal outside system.
The utility model has made up a multi-biological characteristic recognition system based on the fusion fingerprint and the face characteristic of IC system, at the utility model on the fusion method is to adopt based on the fusion method between the uncertain region, fingerprint characteristic is divided between definite and uncertain region, makes and determining that the recognition performance on the interval is better than original recognition performance.By the finger print data between people's face data and uncertain region being merged the recognition performance on then can improving between the uncertain region, thereby make the overall performance of system be improved.
The utility model has the advantages that:
1, ignite the accuracy height, avoided misquoting quick-fried, made things convenient for the safety management of detonator: the utility model has adopted the cryptographic technique of bio-identification, and the fingerprint or the shape of face are inconsistent can not ignite, avoided misquoting quick-fried or access by unauthorized persons for igniting the loss that causes.Ignite accuracy rate and can reach 100%, substantially exceeded the accuracy rate of existing ignition.
2, the utility model adopts the electronic delay technology, and delay adjustments is easy, and the precision height is convenient to operation.Delay time can be accomplished the 0-9999 section, and delay time error has substantially exceeded the delay precision of existing ignition at 1 millisecond.
3, the utility model can be ignited tens thousand of the detonators that adopt the microelectronics delay technique of IC system (as the WS08 chip), service efficiency height and applied range simultaneously.
4, automatic inspection function before the utility model can be ignited, if the detonator that can not ignite is wherein arranged, this utility model will show the number of corresponding detonator, so that investigate in advance; After the ignition, the utility model will write down all detonator numbers that are detonated automatically, in the database of safe type intelligent electric digital primer control system, identify the detonator of having ignited in order to inquiring about or being convenient to, thereby can satisfy industry and the military needs of upward using safely.
5, the utility model adopts biological identification technology to carry out identity authentication and data transmission, and is flexible to operation, and the accuracy height is convenient to management.
Description of drawings
Fig. 1 is the digital electric detonator cell cube internal structure principle schematic of the utility model based on biological identification technology
Fig. 2 is the utility model digital electric detonator cell cube basic control principle schematic diagram
Fig. 3 is the internal frame diagram of the WS08 chip of digital electric detonator
Fig. 4 is the overview flow chart of the utility model fingerprint recognition and shape of face identifier operation principle
Fig. 5 is the power supply circuits block diagram of the utility model fingerprint module
Fig. 6 is the principle of compositionality block diagram of the detonator detonation system in the utility model system
Fig. 7 is the detailed electric control schematic diagram of the detonator detonation system in the utility model system
The specific embodiment
The utility model is based on the electronic digital detonator and the initiation system of biological identification technology, be made of detonator detonation system and one group of electronic digital detonator body, the lead-in wire of each electronic digital detonator (communication and the multiplexing line of powering) is in parallel with the control output end of initiation system.
Described one group of electronic digital detonator is one at least, can be thousands of up to ten thousand at most, or even tens thousand of are controlled by detonator detonation system of the present utility model simultaneously.
As shown in Figure 1, described each electronic digital detonator body partly is made up of storage capacitor 1, IC system 2 (can be WS08 chip or MCU etc.), bridge silk 3 (igniting priming by scorching hot bridge silk), priming 4 etc.The ID sign indicating number (quilt is demarcated distribution) that all has unique appointment in the electronics integrated system 2 of detonator (present embodiment is selected the WS08 chip for use).
Fig. 2 is the basic control principle figure of digital electric detonator.Digital electric detonator adopts the mode of supply lines and the compound use of order wire; In order to improve dependability, even in blasting process, supply line breaks down, and still can finish blast operations by the defer time of setting, and adopts capacitor C 1 to store the energy and the required energy of point of amorce of control system work; In order to improve anti-interference (static, radio frequency, stray electrical current) ability of digital electric detonator, improve the security of digital electric detonator, adopt the electronic switch K1 control charging of electric energy of detonating, if disconnect K1 then can not charge.Only after the preparation of detonating (connection, detection, defer time setting etc.) is finished, the K1 closure, then detonator just can be in state to be detonated.In case of emergency, when stopping blast operations if desired, by electronic switch K2 closure, then the energy storage of C1 all discharges; After defer time arrived, electronic switch K1 is closed to be discharged into the energy storage of C1 on the point of amorce, thereby finished the work of detonating of digital electric detonator.
The principle of compositionality of WS08 chip integrated system has comprised central control and processor, UART interface, Flash interface, sdram controller, internal RAM, input/output interface etc. referring to Fig. 3 among the utility model embodiment.The UART interface is used for reading the data from fingerprint sensor and shape of face sensor, and the UART interface can be made the assembly of oneself, and Flash and sdram controller adopt the kernel that carries.Make up the hardware system of WS08 inside at last,, realize connection, carry out the peripheral circuit programming, fingerprint and the design of shape of face recognizer peripheral circuit again by pin assignments.Drawn part is the internal frame diagram of WS08 chip among Fig. 3, and WS08 chip integrated system is the part of control circuit among Fig. 2, is extension/control section in Fig. 2.
The utility model WS08 chip integrated system can the parallel processing data, multiplication, addition, add up and comparison operation can make full use of the hardware concurrency and calculates, so fingerprint and the shape of face data extracted are carried out feature identification with this WS08 chip, compare than software and can realize high speed processing, and system reliability is improved.The WS08 chip of the inside by digital electric detonator carries out feature identification, software by superior performance, can freely define the internal logic and the pin of device, the major part work that former cause board design is finished is placed in the chip design to be carried out, and has strengthened the flexibility of design effectively.When design goes wrong or functional requirement when upgrading,, do not need to change circuit as long as it is just passable to reconfigure the internal logic of WS08 chip with program.
Adopted many bio-identification cell arrangement in the initiation system of the present utility model, it is fingerprint and shape of face identifier.Fig. 4 is the overview flow chart of fingerprint identification and shape of face identification work.At first the employing fingerprint identification module carries out the comparison first time to the input sample, determines between its location according to the minutiae point number of coupling; Next step carries out the recognition of face comparison for the sample in dropping between the fingerprint uncertain region, thereby obtains a recognition result that uncertainty is littler.The most difficult in the fingerprint identification module based on the WS08 chip is the realization of fingerprint recognizer and shape of face recognizer.Present most fingerprint algorithm and shape of face identification are all carried out fingerprint image and shape of face treatment of picture with dsp processor.The utility model is handled fingerprint and shape of face image with WS08, utilizes the fireballing advantage of hardware implementation algorithm, makes system can finish mass data fast and handles.
Fig. 5 is the power supply circuits block diagram of fingerprint module.Wherein the fingerprint module power supply mode has two kinds of 3.3V and 1.5V.The converting power source of the Adjustable Output Voltage that efficient, low-power consumption voltage boosting dc converter MAX761 and several peripheral cells constitute of serving as reasons as shown in Figure 5, its output voltage is by the value decision of R2 and R1, by formula Vo=(1+R2/R1) * VREF calculates, VREF=1.5V.The Vo that fingerprint module requires is 1.5V, and then R2 is 0 Ω, and the resistance proportioning is finished.
Fingerprint module AFS2 is the contact fingerprint sensor of Authentec company.AFS2 is by UART and PERCOM peripheral communication, and it is made up of sensing element matrix, driving ring and auxiliary circuit, can respond to be placed on the fingerprint on the fingerprint sensor and to generate the corresponding digital image.Matrices of sensor elements by 16384 independently element form, be divided into 8 submatrixs.Each submatrix comprises 128 row (every row comprise 16 points).
The workflow of AFS2: when finger is not pressed, AFS2 is under the idle pulley, the sensing element matrix is closed, this moment, whether AFS2 had finger to press with certain rate scanning, the locking phase detector is used to the output of comparison fingerprint ring and the phase difference between the internal reference signal, and when finger was pressed, its phase difference variable was big, the output of locking phase detector is activated, and expression has finger to be placed on the fingerprint sensor this moment.Fingerprint sensor just begins to outside output fingerprint image data.
Fig. 6 is the electric theory diagram that initiation system of the present utility model constitutes, as shown in Figure 6, the formation of the utility model initiation system includes power module 1, power supply changeover device 2, key-press module 3, fingerprint and shape of face module 4, display module 5, ignition fuse 6, electronic switch 7, communication module 8, single-chip microcomputer 9, memory module 10, the annexation of concrete input and output can be referring among the figure shown in the direction of arrow, single-chip microcomputer in the detonator detonation system of this digital electric detonator system and memory module both-way communication, the input of single-chip microcomputer is connected with Keysheet module and fingerprint and shape of face module, the output of single-chip microcomputer is connected with display module, single-chip microcomputer is connected with electronic switch by communication module, single-chip microcomputer, communication module and electronic switch are two-way communication.Described electronic switch adopts the electronic digital detonator parallel connection of intelligent chip simultaneously with a plurality of (quantity can be unrestricted, can be one to tens thousand of) by two ignition fuses.Described power module has the output of two-way voltage, one the tunnel is high voltage 12V, directly to the ignition switch power supply, another road provides the low-voltage of different requirements for single-chip microcomputer, memory module, key-press module, fingerprint module, shape of face module, display module and communication module through power supply changeover device.The connection that each module is concrete can be referring to embodiment shown in Figure 7.
The utility model operation principle and process are: at first by fingerprint and the shape of face sensor people's the fingerprint and the shape of face are carried out feature extraction, be transferred to then and carry out feature identification and information fusion on the WS08 chip of intelligent digital electric detonator.If fingerprint is consistent with the shape of face and donor's feature, then can normally detonate.If not meeting of any one and donor arranged, then can not detonate.
Fingerprint sensor chip carries out high-speed data transmission by serial ports UART and WS08.The WS08 chip internal does not have ready-made UART interface, but UART RS232 kernel is arranged, and it can only finish and the communicating by letter of PC, be not suitable for linking to each other with the serial ports of fingerprint sensor, so utilize the FPGA of WS08 inside, designed the UART interface that reads for fingerprint.Shape of face identification is adopted and is gathered people's face and with video camera image is gathered, and the image that collects is compared with the image in the memory, thereby determine whether authorize.
The WS08 chip internal of digital electric detonator contains unique ID number, has ID number of detonator that authorize to ignite in the initiation system, checks with the ID sign indicating number of the interior WS08 of every piece of detonator for the ID in the initiation system number then.If there be this ID number in the initiation system, then explanation is the detonator that we will ignite; If no, then explanation is not the detonator that will ignite.Each digital electric detonator of the present utility model is owing to have unique ID sign indicating number, so can realize very easily each detonator is carried out the complete monitoring management from producing and selling, buy, use explosion status, so that more effectively strengthen management to the detonator use.
The utility model has made up a multi-biological characteristic recognition system based on fingerprint recognition and face recognition technology.On the basis based on these two kinds of features that biological characteristic extracted, what finally obtain for fingerprint recognition is the coupling minutiae point number of a pair of minutiae point set, and this is a kind of tolerance of similitude.Can obtain a confidence level numerical value by normalization to the coupling minutiae point.And for the recognition of face in the utility model, what finally obtain for an input sample is the possibility ordering of a group categories.Because confidence level (confidence) and ordering (rank) are the features of two kinds of different in kinds, by the structure that walks abreast they are merged and have certain difficulty.Based on the fusion structure of taking serial in so true the utility model.At first the employing fingerprint identification module carries out the comparison first time to the input sample, determines between its location according to the minutiae point number of coupling; Next step carries out the recognition of face comparison for the sample in dropping between the fingerprint uncertain region, thereby obtains a recognition result that uncertainty is littler.Concrete framework as shown in Figure 4.
Adopted the fingerprint identification method based on minutiae point in the utility model, the characteristic formp that is extracted by this method is the set of a minutiae point.Judge by the minutiae point number of coupling during relatively two minutiae point are gathered whether two minutiae point set mate during coupling.It has been generally acknowledged that when the minutiae point number of two minutiae point sets match reached or surpass 12, these two minutiae point set were mated.Follow-up processing for convenience is divided into four levels with the matching degree of fingerprint according to coupling minutiae point number: the coupling minutiae point is less than 9, more than or equal to 9 less than 12, more than or equal to 12 less than 15 with greater than 15.Because if the minutiae point number of coupling is less than 9, the probability of two fingerprint matchings is just smaller.And greater than 15 possible the type of time coupling just very greatly.The matching degree that two fingerprints are discussed in the scope between minutiae point coupling number 9 to 15 is more meaningful comparatively speaking.Discrimination test result on these four level binding data storehouses comprehensively obtains corresponding confidence level numerical value.For recognition of face, generation be a distance values between two people's faces: for people's face of an input, if feature people's face distance of being stored in the database in it and the initiator is within the specific limits, we just think that with this people's face be consistent so.
Below in conjunction with accompanying drawing the utility model embodiment is elaborated, but protection domain of the present utility model is not limit by example.
As shown in Figure 6, the structure of the utility model initiation system is as follows: automatic recognition controlled primer initiation system, and its structure is as follows: power module 1 has two outputs, and an end output voltage 12V is connected with the input of electronic switch 7; The other end is output as the voltage-stabilized power supply that memory module 10, single-chip microcomputer 9, key-press module 3, fingerprint/shape of face module 4, display module 5 and communication module 8 provide 5V through power supply changeover device 2; The input of single-chip microcomputer 9 is connected with key-press module 3 and fingerprint/shape of face module 4, and output connects display module 5.Single-chip microcomputer 9 also keeps both-way communication with communication module 8, and communication module 8 also keeps both-way communication with electronic switch 7.Two ignition fuses 6 of electronic switch 7 link to each other with the detonator lead-in wire, if ignite many detonators simultaneously, require all detonator lead-in wires to be connected in parallel with ignition fuse 6.
The utility model implementation step is as follows: will adopt the lead-in wire (being the chargeable transmission line that also can do data and control signal) of microelectronics delayer detonator to be connected on the ignition fuse 6 of the controlled initiation system of the utility model, if ignite many detonators simultaneously, be with all detonator lead-in wire and ignition fuse 6 in parallel getting final product.
Initiation system begins the charging module charging to detonator, export to single-chip microcomputer after the charging module charging, single-chip microcomputer is started working, at this moment read some parameter values that are stored in the detonator by communication module, initiation system also can be carried out feature extraction by fingerprint/shape of face module 4, carries out feature fusion and identification then in single-chip microcomputer.Fingerprint sensor adopts touch chip, and shape of face identification adopts people's face to gather special-purpose camera, and they all adopt serial ports to link to each other with single-chip microcomputer, and then link to each other with the WS08 chip by single-chip microcomputer, have designed the UART interface at the WS08 chip internal.The FLASH memory is used for preserving template fingerprint and shape of face data.The fingerprint of gathering is 96 * 96 image, and 1 image accounts for the capacity of 9.216Kbyte, wants to hold 200 fingerprint templates in the FLASH memory.The mode of each signal input output end of FLASH interface by pin configuration, be configured on the concrete I/O pin of WS08, realize being connected with outside FLASH chip.The SDRAM memory is storage at random and the fingerprint that is mating and the storage of shape of face template data of input fingerprint and shape of face data.The integrated kernel of the same employing of sdram controller is controlled with processor.The mode of the signal input output end of sdram controller by pin configuration, be configured on the concrete pin of WS08, realization is connected with outside sdram controller.The fingerprint and the shape of face of being stored in the single-chip microcomputer 9 with the information that collects and initiation system compares then.If it is consistent, can ignite, the number of this detonator is deposited in the memory module 10, wait for that key-press module sends the ignition indication, the next detonator of patrolling, if detonator reads in the fingerprint that reads in trigger or the shape of face is inconsistent or judge to ignite no feedback signal in single-chip microcomputer 9, then the number with this detonator outputs to display module, notifies this detonator of user not ignite.All check when all detonators in parallel and to finish.Output signal to display module, the user can press firing button and detonate.
Claims (6)
1, a kind of electronic digital detonator and initiation system based on biological identification technology, the one group of electronic digital detonator body that comprises detonator detonation system and ignited by its control, each electronic digital detonator power supply is in parallel with the control output end of initiation system with the multiplexing lead-in wire of communicating by letter, and it is characterized in that:
Described detonator detonation system has key device and many bio-identification cell arrangement simultaneously, and detonator detonation system inside is equipped with sets the IC chip of authorizing detonating primer ID sign indicating number;
Described each electronic digital detonator body is built-in with IC system and the storage capacitor that stores unique designated ID sign indicating number;
The control output end of detonator detonation system links to each other with each electronic digital detonator with the multiplexing lead-in wire of communication by the detonator power supply.
2, electronic digital detonator and initiation system based on biological identification technology according to claim 1, it is characterized in that: described initiation system is by power module, power supply changeover device, key-press module, fingerprint and shape of face module, display module, ignition fuse, electronic switch, communication module, single-chip microcomputer, memory module constitutes, single-chip microcomputer and memory module both-way communication, the input of single-chip microcomputer is connected with Keysheet module and fingerprint and shape of face module, the output of single-chip microcomputer is connected with display module, single-chip microcomputer is connected with electronic switch by communication module, single-chip microcomputer, communication module and electronic switch are two-way communication; Described electronic switch is simultaneously in parallel with one group of electronic digital detonator by two ignition fuses.
3, electronic digital detonator and initiation system based on biological identification technology according to claim 2, it is characterized in that: described power module has the output of two-way voltage, one the tunnel is high voltage 12V, directly to the ignition switch power supply, another road provides voltage through power supply changeover device for single-chip microcomputer, memory module, key-press module, fingerprint module, shape of face module, display module and communication module.
4, electronic digital detonator and initiation system based on biological identification technology according to claim 1 is characterized in that: described many bio-identification cell arrangement is a fingerprint and shape of face identifier.
5, electronic digital detonator and initiation system based on biological identification technology according to claim 1 is characterized in that: described IC system can be WS08 chip or MCU single-chip microcomputer.
6, electronic digital detonator and initiation system based on biological identification technology according to claim 1 is characterized in that: the UART interface that reads for fingerprint with the programming language design in IC system inside.
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| CNU2008201241626U CN201311250Y (en) | 2008-11-26 | 2008-11-26 | Digital electronic detonator and detonating system thereof based on biometric identification technique |
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| CNU2008201241626U CN201311250Y (en) | 2008-11-26 | 2008-11-26 | Digital electronic detonator and detonating system thereof based on biometric identification technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408396B (en) * | 2008-11-26 | 2013-08-07 | 北京维深数码科技有限公司 | Digital electric detonator ignition system based on biometric identification technology |
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- 2008-11-26 CN CNU2008201241626U patent/CN201311250Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408396B (en) * | 2008-11-26 | 2013-08-07 | 北京维深数码科技有限公司 | Digital electric detonator ignition system based on biometric identification technology |
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