CN202334554U - Novel passive intelligent identification system - Google Patents
Novel passive intelligent identification system Download PDFInfo
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- CN202334554U CN202334554U CN2011204946334U CN201120494633U CN202334554U CN 202334554 U CN202334554 U CN 202334554U CN 2011204946334 U CN2011204946334 U CN 2011204946334U CN 201120494633 U CN201120494633 U CN 201120494633U CN 202334554 U CN202334554 U CN 202334554U
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Abstract
The utility model discloses a novel passive intelligent identification system. The system comprises a wireless power supply sensor platform, a client, a network server, a performer and a data base, wherein the wireless power supply sensor platform acquires acceleration in the three-dimensional direction and transmits the acceleration to the client; the client receives data and then transmits the data to the network server; the network server analyzes and converts the data into another acceleration in the three-dimensional direction, and further processes the data. By adopting the system provide by the utility model, the hardware design of a conventional wireless power supply sensor is improved, the size of the wireless power supply sensor is smaller, and the wireless power supply sensor can well achieve communication efficiency; and besides, the system overcomes the defect that a conventional authenticated encryption method completely depends on a physical key, and has a very large key space and adjustable encryption complexity.
Description
Technical field
The utility model relates to the adjustable intelligent encryption Verification System of encryption complexity of a kind of comprehensive wireless charge sensors node and rf data analysis and control.
Background technology
Encrypted authentication system is widely used in every field.From the RM of existing system, mainly be divided into two types of mechanical type and electronic types.Typical case's representative of mechanical type authentication has the Rotary puzzle lock on traditional key, the safety box etc.This type systematic carries out authentication through the coupling to mechanical structure.In case key loss, fail safe just can't guarantee.The Rotary puzzle lock mechanical realization is complicated, and key space is limited, is not suitable for using in public.In addition, mechanical type is because the physical structure restriction can't be changed internal structure, and alternate key improves fail safe.The representative of electronic type authentication is a contactless card.Though contactless card helps network management, easy to use, because its authentication only relies on the static id information that is solidificated in the card, cause Verification System to recognize card and do not recognize people.In case the card internal information is by illegal copies or held gate inhibition's card, has promptly had the authority through the gate control system authentication.As the extension of electronic type authentication, some authentications based on new bio transducer (fingerprint, iris)
also exist key single and can be replicated, cost is higher, can't between trusted users, transmit the defective of authority.
In existing contactless card Verification System, the frequency of use generally all is lower than 30MHz.In this frequency range, the communication protocol of main flow is Wei root agreement.What use in the native system is superfrequency (Ultra High Frequency, the UHF) frequency range with farther reading/writing distance and transmission rate.At present, the radio frequency of very high frequency(VHF) mainly is used in the logistics supply chain field.Generally on some kinds of goods, settle identification label,, realize monitoring and management the kinds of goods circulation through supply chain node very high frequency(VHF) RFID card reader by supplier.(existing RFID card reader can reach more than 10 meters the wireless driving and the communication capacity of label for Radio Frequency Identification, the RFID) development of technology along with radio-frequency technique.In recent years, to the wireless senser research based on RFID, concentrate on theoretical side more in the world, like communication quality analysis and energy consumption control, related application is less, does not also all relate to the encrypting and authenticating field.
At present, computer realm has much the action recognition algorithm design based on acceleration transducer, but powered battery is mainly all adopted in the system design of combined sensor, and cost is high, and is convenient inadequately and to encrypt the space limited.Also do not have at present wireless power and encrypt the adjustable intelligent encryption Verification System true environment of complexity.In the passive RF label patent that accept in October, 2010, a kind of sensor platform of wireless power has been proposed with acceleration transducer.This platform by volume is excessive, under wireless status, only can realize the collection and the transmission of sensing data, does not have data parsing and operational capability.
In addition, existing no matter mechanical type, electronic type still are biology-electronic type authentication mode, and its key can not be taken precautions against the problem of falsely using with bootlegging all based on static data.In native system, we have at first proposed a kind of authentication mode that combines static ID data and dynamic pickup data.It adopts wireless power, and key space is big, and it is adjustable to encrypt complexity, has merged mechanical type and electronic type authentication advantage separately, can effectively solve contactless card and lose, do not have and license and problem such as bootlegging.Novel contactless card based on this system makes can be broken away from the limitation that traditional RFID label must possess specific asic chip, realizes the encrypting and authenticating function through common microprocessor.This system uses standardized communication protocol, and advantages of small volume can be compatible with existing most of wireless authentication system.
The utility model content
For overcoming the limitation in the existing authentication mode fail safe, the utility model provides a kind of novel passive intelligent authentication system.This system can be under the situation of not carrying battery, perception and identification rotation, physical motion such as moves, and realizes the function of encryption and authentication and gate inhibition's keying through the motion state analysis.This novel encrypting and authenticating mode key space is big, and the encryption complexity is adjustable, can effectively remedy existing encrypted authentication system defective, adapts to the different security requirements of various occasions.
The utility model solves the technical scheme that its technical problem adopted:
A kind of novel passive intelligent authentication system; Comprise: wireless power sensor platform, client, the webserver, actuator and database etc.; Said client, actuator and database link to each other with the webserver respectively, and the wireless power sensor platform is communicated by letter with client wireless; Said wireless power sensor platform comprises the PCB antenna; Rectification module, energy-storage module, microprocessor module, acceleration device module, modulation module, demodulation module, Voltage stabilizing module, led module, EEPROM and Vout monitoring modular etc.; Said rectification module links to each other with energy-storage module; Rectification module links to each other with microprocessor module through demodulation module, and energy-storage module links to each other with microprocessor module through Voltage stabilizing module, and rectification module links to each other with the PCB antenna; The PCB antenna links to each other with microprocessor module through modulation module, and acceleration device module, led module, EEPROM and Vout monitoring modular directly with microprocessor module link to each other; Wherein, said PCB antenna is a symmetrical structure, is made up of first lead, privates and second lead; Wherein, first lead, privates and second lead are integrally formed, and first lead and second lead all are converted into three sections at grade, first section level; Length is 28.067mm, and width is 0.889mm, and second section vertically; Length is 17.14903mm, and width is 0.889mm, the 3rd section level; Length is 20.066mm, and width is 5.969mm, and first section and the 3rd section are the same side of second section.Privates 3 also is converted into three sections at grade, and first section vertically, and length is 6.85918mm; Width is 0.889mm, and second section level, length are 12.573mm; Width is 0.889mm, and the 3rd section vertically, and length is 6.85918mm; Width is 0.889mm, and first section and the 3rd section are the same side of second section.The two ends of privates are connected on respectively on first lead and second lead first section.
The beneficial effect that the utlity model has is:
1) a kind of novel encrypting and authenticating mode that combines dynamic pickup data and static id information has been proposed.Break away from the defective that the conventional cryptography authentication relies on physical key purely, had high key space and an adjustable encryption complexity.
2) from wireless power, data acquisition, radio communication, data analysis processing and gate inhibition's control aspect complete design based on the encrypted authentication system of RFID wireless power.
3) improved former wireless power transducer hardware designs, made it have littler volume and the usefulness of communicating by letter better.
Description of drawings
Fig. 1 is the system construction drawing of the utility model;
Fig. 2 is the micro radio powered sensor hardware platform structure chart of the utility model;
Fig. 3 is the wireless power sensor platform course of work sketch map of the utility model;
Fig. 4 is the analog front circuit schematic diagram of the utility model;
Fig. 5 is the microprocessor module control circuit schematic diagram of the utility model;
Fig. 6 is the micro radio powered sensor hardware platform antenna sketch map of the utility model;
Fig. 7 is the micro radio powered sensor hardware platform antenna Smith chart of the utility model;
Fig. 8 is the micro radio powered sensor hardware platform antenna S11 parameter stickogram of the utility model;
Fig. 9 is the micro radio powered sensor hardware platform acceleration information and the iPhone4 acceleration information comparison diagram of the utility model;
Figure 10 is the algorithm flow chart of the utility model;
Figure 11 is the analogous diagram of the webserver recognizer of the utility model about the input noise influence;
Figure 12 is the analogous diagram of the webserver recognizer of the utility model about the influence of data sampling number;
Figure 13 is the analogous diagram of the webserver recognizer of the utility model about the influence of communication number of dropped packets.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
As shown in Figure 1, the novel passive intelligent authentication system of the utility model comprises: wireless power sensor platform, client; The webserver; Actuator and database, wherein, client; Actuator links to each other with the webserver respectively with database, and the wireless power sensor platform is communicated by letter with client wireless.
The operation workflow of whole system is following: client modules reads the radio-frequency signal of wireless power sensor platform reflection, and this signal is passed to the webserver with the form of hexadecimal code.This signal of webserver analysis subsequently also is converted into three-dimensional acceleration signal and further handles.The webserver is confirmed to be embedded with the rotation status of gate inhibition's card of wireless sensor platform this moment through the acceleration of differentiating on the three-dimensional, and the corresponding simulating graph in real time is presented on the user interface of the webserver; Meanwhile, the webserver is resolved the course of action of the gate inhibition's card that is embedded with wireless sensor platform through the acceleration change trend on the analyzing three-dimensional direction, and analysis result is also shown on the user interface.Analysis result will mate with the information in the database.If mate successfully, the webserver will give card holder's authentication credential and actuate actuators is done corresponding operation, thereby realizes the identification and the authentication of gesture.In addition, the webserver can deposit analysis result in database, and sets up individual's gesture information sign indicating number, thereby realizes the intelligent encryption and the popularization and application of gesture.
As shown in Figure 2; The wireless power sensor platform comprises the PCB antenna, rectification module, energy-storage module, microprocessor module, acceleration device module, modulation module, demodulation module, Voltage stabilizing module, led module, EEPROM and Vout monitoring modular, wherein; Said rectification module links to each other with energy-storage module; Rectification module links to each other with microprocessor module through demodulation module, and energy-storage module links to each other with microprocessor module through Voltage stabilizing module, and rectification module links to each other with the PCB antenna; The PCB antenna links to each other with microprocessor module through modulation module, and acceleration device module, led module, EEPROM and Vout monitoring modular directly with microprocessor module link to each other.
Fig. 3 has described the course of work of this wireless power sensor platform.The querying command of wireless senser hardware platform customer in response end, the acceleration transducer image data in the microprocessor module control acceleration device module is also handled, and feeds back to client through wireless signal then.This wireless power sensor platform got into low-power consumption mode to reduce energy consumption after communication was accomplished.
Shown in Figure 4 is the analog front circuit schematic diagram of wireless power sensor platform.The PCB antenna mainly is made up of antenna Antenna, variable capacitance CV, inductance L 1; Wherein the collector electrode of FET Q1 is connected in an end of the end of the end of antenna Antenna and variable capacitance CV, inductance L 1, the modulation module; The other end of variable capacitance CV is connected with ground, and electric capacity is connected in the other end of inductance L 1 and the rectification module.Rectification module mainly is made up of capacitor C 1 ~ C14 and detection tube D1 ~ D7, and wherein detection tube D1-D7 can select the zero offset Schottky detection tube HSMS-285 of Agilent company for use, but is not limited thereto.Detection tube is connected with capacitor C, between detection tube and the detection tube, has realized corresponding connection between the detection tube electric capacity.Wherein in an end of 2 pin of detection tube D7 and capacitor C 14, the energy-storage module in the anode of diode D8, the demodulation module in the anode of diode D9, the demodulation module 4 pin of voltage comparator U2 be connected.Energy-storage module mainly is made up of diode D8, storage capacitor Cstore, voltage stabilizing didoe ED.Voltage stabilizing module mainly is made up of voltage stabilizing chip U1, capacitor C 15, and wherein voltage stabilizing chip U1 can select the pressurizer NCP583SQ18 of ON Semiconductor company for use, but is not limited thereto.Demodulation module mainly is made up of diode D9, capacitor C 16, voltage comparator U2, FET Q2, level transferring chip U3.Modulation module mainly is made up of FET Q1, resistance R 1.
As shown in Figure 5, the connection situation of MCU control circuit schematic diagram has been described.Microprocessor module mainly is made up of microcontroller U0, crystal oscillator Y1, resistance R 0, connector P1, connector P2, and wherein microcontroller can be selected the MSP430F2274 of TI company for use, but is not limited thereto.Acceleration device module mainly is made up of acceleration transducer U4, capacitor C 17 ~ C20; Wherein acceleration transducer can be selected the ADXL330 of Analog Devices company for use; 1 ~ 7,11 pin of acceleration transducer U4 are connected with ground; 8,10,12 pin of acceleration transducer U4 are connected with 8,7,6 pin of the end of capacitor C 20, C19, C18, microcontroller U0; 13 ~ 16 pin of acceleration device U4 are connected with 9 pin of an end of capacitor C 17, microcontroller U0, and the other end of capacitor C 17 is connected with ground, and the other end of capacitor C 17 ~ 20 is connected with ground.
The PCB Antenna Design has crucial status in The Hardware Design, it has accomplished the conversion of RF energy to electric energy.On the basis of the patent that utility model people accepted in October, 2010 " passive RF wireless power sensor platform " (number of accepting 201010503861.3) with acceleration transducer; Embed card and more highly sensitive requirement in order to adapt to, this hardware platform has been done corresponding improvement to the PCB antenna of wireless senser hardware platform.The linear half-wave dipole antenna that the PCB antenna adopts (1/2 wavelength=15cm), and two arms of crooked PCB antenna.Spacing distance between the shape of PCB antenna trace, live width, each track etc. all affects the input impedance of antenna, and we adopt CST Microwave Studio software to come these parameters are carried out simulation optimization, like Fig. 6 and Fig. 7.
Under the double goal that reduces antenna size and coupling antenna impedance, the antenna model after the optimization is as shown in Figure 8.Whole PCB antenna is a symmetrical structure, is made up of first lead 1, privates 3 and second lead 2; Wherein, first lead 1, privates 3 and second lead 2 are integrally formed, and first lead 1 and second lead 2 all are converted into three sections at grade, first section level; Length is 28.067mm, and width is 0.889mm, and second section vertically; Length is 17.14903mm, and width is 0.889mm, the 3rd section level; Length is 20.066mm, and width is 5.969mm, and first section and the 3rd section are the same side of second section.Privates 3 also is converted into three sections at grade, and first section vertically, and length is 6.85918mm; Width is 0.889mm, and second section level, length are 12.573mm; Width is 0.889mm, and the 3rd section vertically, and length is 6.85918mm; Width is 0.889mm, and first section and the 3rd section are the same side of second section.The two ends of privates 3 are connected on respectively on first lead 1 and second lead 2 first section.
Be stored in the energy-storage module after the rectification conversion of the RF energy that the PCB antenna is collected through rectification module, energy-storage module can be electric capacity, and the stable voltage of Voltage stabilizing module output is that whole wireless power sensor platform provides energy.Sensor assembly is accomplished the collection of particular sensor parameter, and inputs to microprocessor module and handle.After handling, microprocessor module will send to client through PCB days bundle of lines data.
After this wireless power sensor platform work, to client, client will speed up degrees of data and sends the webserver to the form of hexadecimal code its three-dimensional acceleration information via the PCB antenna transmission after improving.Like Fig. 9; Through comparing and to find to the analysis of this acceleration information and with Apple iPhone4 acceleration information; The wireless power sensor platform is in the rotation of space; The acceleration of its three-dimensional will change with the variation of the anglec of rotation, and this variation can accurately be read and reduces by platform.The important principles of this utility model is to change according to this to reduce spinning movement and utilize these data to realize the authentication and the encryption of gesture.
Client can be the RFID card reader, and the RFID card reader can adopt all kinds of read write lines of supporting EPC C1G2 agreement, the fixed card reader of the Speedway of American I mpinj company series for example, but be not limited thereto.
The webserver comprises four modules: the data link block is provided with module, gesture display module and data disaply moudle.Wherein the data link block is used to be provided with the network address of router and realizes and being connected of client.Module is set to be used to be provided with the encryption precision and to select the wireless power sensor platform.The angle state and the playback gesture motion process of gesture display module display radio powered sensor platform.Data disaply moudle is used for each association of real-time display radio powered sensor platform.
The webserver specifies as follows: the client keys in the network address on the webserver, realizes and being connected of client through the data link block.Network link the encryption precision through module is set after setting up, and system will get into standby mode.Then its two-dimentional rotation status will be simulated through X, the Y directional acceleration data of analyzing this platform by this system if there is wireless powered sensor platform data collected this moment.If the acceleration of Z-direction is not in certain data area at this moment, i.e. expression this platform this moment is not to be parallel to card reader, and the webserver does not carry out authentication analysis and operation to data with the rotation status of a display platform at this moment.Meanwhile, data disaply moudle will show the hexadecimal code data of the acceleration of this platform in real time, be used for analysis and detection system and whether be in normal accepting state.If this moment, the acceleration of Z-direction produced certain sudden change, mean that this moment, this platform was parallel to client, then this moment, network server was except the rotation status of real-time display platform, also can begin to gather acceleration information.After the client accomplishes the rotary manipulation of wireless power sensor platform according to standard, platform is in non-parallel state in card reader, system will judge whether to stop data acquisition through the acceleration information of analyzing Z-direction this moment.
Shown in figure 10, after data acquisition finished, the webserver carried out the separation of elemental motion earlier to the data that collect, extract the motion characteristic value then and show corresponding results.Meanwhile, system compares existing motion characteristic value in this motion characteristic value and the database, if realize coupling fully, then the webserver will be accomplished gate inhibition's control operation through the serial port drive actuator, thereby realize controlling based on the action authentication gate inhibition.If the motion characteristic value of validated user is not present in the data, then can deposit data in database through the Interface Control module.Database is set up corresponding personal information sign indicating number automatically, thereby has realized the encryption of action.The playback that the Data Control module can also the control action overall process in addition, playback action will be shown in the gesture display module.Like Figure 11-shown in Figure 13, the recognizer of the webserver has all shown higher recognition accuracy under the influence of different noises sizes, data sampling number and data packet loss.
Actuator can adopt the hardware system of C8051 Single-chip Controlling electromagnetic switch.The webserver connects through serial ports and sends the keying of specified command control actuator, thereby realizes the gate inhibition's control operation after authentication is passed through.Actuator can be selected all kinds of common dc switchs for use, like the direct solenoid switch, but is not limited thereto.
Database can be realized by computer, includes user's essential information in the database, unique number and gesture identification sign indicating number.
The foregoing description is used for the utility model of explaining; Rather than the utility model limited; In the protection range of the spirit of the utility model and claim,, all fall into the protection range of the utility model to any modification and the change that the utility model is made.
Claims (1)
1. novel passive intelligent authentication system; It is characterized in that; It comprises: wireless power sensor platform, client, the webserver, actuator and database; Said client, actuator and database link to each other with the webserver respectively, and the wireless power sensor platform is communicated by letter with client wireless; Said wireless power sensor platform comprises the PCB antenna; Rectification module, energy-storage module, microprocessor module, acceleration device module, modulation module, demodulation module, Voltage stabilizing module, led module, EEPROM and Vout monitoring modular; Said rectification module links to each other with energy-storage module; Rectification module links to each other with microprocessor module through demodulation module, and energy-storage module links to each other with microprocessor module through Voltage stabilizing module, and rectification module links to each other with the PCB antenna; The PCB antenna links to each other with microprocessor module through modulation module, and acceleration device module, led module, EEPROM and Vout monitoring modular directly with microprocessor module link to each other; Said PCB antenna is a symmetrical structure, is made up of first lead (1), privates (3) and second lead (2); First lead (1), privates (3) and second lead (2) are integrally formed, and wherein, first lead (1) and second lead (2) all are converted into three sections at grade, first section level; Length is 28.067mm, and width is 0.889mm, and second section vertically; Length is 17.14903mm, and width is 0.889mm, the 3rd section level; Length is 20.066mm, and width is 5.969mm, and first section and the 3rd section are the same side of second section; Privates (3) also is converted into three sections at grade, and first section vertically, and length is 6.85918mm; Width is 0.889mm, and second section level, length are 12.573mm; Width is 0.889mm, and the 3rd section vertically, and length is 6.85918mm; Width is 0.889mm, and first section and the 3rd section are the same side of second section; The two ends of privates (3) are connected on respectively on first lead (1) and second lead (2) first section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204946334U CN202334554U (en) | 2011-12-02 | 2011-12-02 | Novel passive intelligent identification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204946334U CN202334554U (en) | 2011-12-02 | 2011-12-02 | Novel passive intelligent identification system |
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| CN202334554U true CN202334554U (en) | 2012-07-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523091A (en) * | 2011-12-02 | 2012-06-27 | 浙江大学 | Intelligent authentication system and method based on wireless power supply sensor |
| CN107004315A (en) * | 2014-12-02 | 2017-08-01 | 开利公司 | Utilize the metering-in control system of virtual card data |
| CN111080859A (en) * | 2019-12-30 | 2020-04-28 | 西安众恒科技有限公司 | Reverse charging intelligent door lock unlocking system and method |
-
2011
- 2011-12-02 CN CN2011204946334U patent/CN202334554U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523091A (en) * | 2011-12-02 | 2012-06-27 | 浙江大学 | Intelligent authentication system and method based on wireless power supply sensor |
| CN102523091B (en) * | 2011-12-02 | 2014-09-24 | 浙江大学 | Intelligent authentication system and method based on wireless power supply sensor |
| CN107004315A (en) * | 2014-12-02 | 2017-08-01 | 开利公司 | Utilize the metering-in control system of virtual card data |
| CN107004315B (en) * | 2014-12-02 | 2020-08-04 | 开利公司 | Access control system using virtual card data |
| CN111080859A (en) * | 2019-12-30 | 2020-04-28 | 西安众恒科技有限公司 | Reverse charging intelligent door lock unlocking system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |