CN100545854C - A kind of identification system and recognition methods - Google Patents

Abstract

The invention discloses an identification system and identification method, which has the advantage that the identification system uses the unique identity code of the identification object stored in the radio frequency identification chip, and then confirms the identification object through the cooperation of high-frequency electromagnetic wave signals and identification devices The unique identity of the unique identity effectively achieves the purpose of anti-counterfeiting; since the unique identity code is completely enclosed in the radio frequency identification chip and can only be read by the identification device, not only the security of the identification object is fully guaranteed, but also avoids the Environmental problems and loss of identity information; because the present invention is based on radio frequency technology, the radio frequency identification chip can be placed inside the identification object, avoiding the disadvantages of disclosing identity information in the existing anti-counterfeiting technology; because the reading count limit of the inventive method is Variable value, which can be set according to the requirements of the identification object. If the value exceeds the limit, the radio frequency identification chip will automatically fail, which can prevent the radio frequency identification chip from being illegally recycled and reused.

Description

An identification system and identification method

technical field

The invention relates to an identity identification anti-counterfeiting technology, in particular to an identity identification system and an identification method.

Background technique

With the continuous development of the commodity economy, the increasing popularity of brand campaigns and the increasing complexity of social relations, the setting and identification of the unique identity of branded goods (identification objects) has attracted more and more attention.

At present, various anti-counterfeiting technologies such as identification numbers, laser tags, special marks or magnetic cards have been used to identify objects in the market. Since the information of these anti-counterfeiting technologies is completely open and easily copied, its security cannot be guaranteed. Guarantee; Among them, the magnetic card anti-counterfeiting technology is also very easy to lose part of the information due to magnetic field interference, and its anti-counterfeiting reliability cannot be guaranteed.

The invention patent "smart card anti-counterfeiting method and a kind of anti-counterfeiting bottle cap" (CN1160668) published on October 1, 1997 in China discloses a kind of smart card anti-counterfeiting method. After a certain number of inspections, the smart card will be destroyed by itself, and the packaging can no longer be used, which effectively achieves the purpose of anti-counterfeiting. However, this method must rely on a contact reading device, and the smart card must be removed from the identification object before reading. When taking out the card, the integrity of the identification object will be destroyed to varying degrees, and the repeatability of the identification cannot be guaranteed.

On May 21, 2003, the invention patent "radio frequency electronic tag data encryption anti-counterfeiting method" (CN1419213) disclosed a radio frequency electronic tag data encryption anti-counterfeiting method, which is read in the read-only memory in the existing radio frequency electronic tag Take out the UID identification code, generate new data after logical operation, and write it into the readable and writable user memory; use the uniqueness and unchangeability of the unique identification code UID in the tag, and generate encrypted data through logical encryption operation Write into the readable and writable user memory of the tag, so that the user memory that can be rewritten and the UID that cannot be rewritten form an agreed logical relationship; although illegal users can read and write encrypted data, they cannot change the UID code of the tag to achieve For the purpose of anti-counterfeiting, but the electronic tag identification and data in the user memory used by this method are still public, and there is no limit to the number of reads; in addition, this method is not only easy to be copied and cause anti-counterfeiting failure, but also can be illegally Recycled and illegally reused.

Contents of the invention

The technical problem to be solved by the present invention is to provide an identification system and identification method that can effectively guarantee the security of the identification object, is not easy to be copied and cracked, and can effectively avoid illegal recycling and illegal reuse.

The technical solution adopted by the present invention to solve the above technical problems is: an identity recognition system, which includes a radio frequency identification chip for storing the unique identity code of the identification object and an identification device matched with the radio frequency identification chip. The identification device is provided with a first power supply module that provides working power for the identification device and a first antenna interface module, a first receiving buffer module, a first password verification module, a reading information module, a display interface module, a closing The control module and the first sending buffer module, the first antenna interface module is provided with a first antenna coil, the first power supply module is connected to a start switch, and one end of the start switch is connected to a battery, so The first receiving buffer module is connected with a first verification and error correction module through a bidirectional data channel, the information reading module is connected with an object database module, and the display interface module is connected with a timeout judgment module and an information display module, The first sending buffer module is connected with a verification password module and a timing sending module, and the first sending buffer module is connected with a first increase verification module through a bidirectional data channel, and the first sending buffer module is connected with the described first sending buffer module. The first antenna interface module is connected; the radio frequency identification chip is provided with a second antenna interface module, a second receiving buffer module, a second password verification module, a reading counting module, a reading encoding module, a second sending A buffer module and an information feedback module, the second antenna interface module is connected with a second power supply module, the second antenna interface module is provided with a second antenna coil, and the second receiving buffer module passes bidirectional data The channel is connected with a second verification and error correction module, the read encoding module is connected with an identity encoding module, the second sending buffer module is connected with a second verification module through a bidirectional data channel, and the information feedback The module is connected to the second antenna interface module; after the identification device is powered on and reset, the timing sending module starts the first sending buffer module and reads the verification password in the verification password module , and add a system command after the read-in verification password to form a system password, and then transmit the system password to the first added verification module through a two-way data channel, and the first added verification module according to the set verification The algorithm calculates the verification data for the received system password, and transmits the verification data to the first sending buffer module through the two-way data channel, and the first sending buffer module adds the verification data to the system password to form a comprehensive password , and transmit the integrated password to the first antenna interface module, and the first antenna interface module sends a high-frequency electromagnetic wave signal carrying the integrated password to the second antenna coil through the first antenna coil; After the second antenna coil receives the high-frequency electromagnetic wave signal carrying the integrated code sent by the first antenna coil, the high-frequency electromagnetic wave signal is sent to the second antenna interface module, and the second antenna coil The antenna interface module converts the induced voltage of the high-frequency electromagnetic wave signal in the second antenna coil into the working power of the radio frequency identification chip and converts it from The output of the second power supply module is used by the radio frequency identification chip, and at the same time, the second antenna interface module separates the integrated password from the high-frequency electromagnetic wave signal carrying the integrated password, and transmits the integrated password to the The second receiving buffer module, the second verification and error correction module judges whether the integrated password data in the second receiving buffer module has been filled with the verification algorithm data group, when the integrated encrypted data has been filled When verifying the algorithm data group, the second verification and error correction module judges whether the integrated password in the second receiving buffer module is correct according to the set verification algorithm, and when the integrated password is correct, the described The verification password in the system password in the integrated password in the second receiving buffer module is transmitted to the second password verification module, and the second password verification module verifies whether the verification password is legal, and when the verification password is legal, according to the system The system command in the password judges whether the read count value in the read count module needs to increase the count, and when the count needs to be increased, the count is increased, and the count value is read out by the read count module, and when it is not necessary to increase the count When counting, the count is not increased, and the count value is read directly through the read count module, and then it is judged whether the read count value exceeds the read count limit value. When the read count limit value is not exceeded or the read count limit value is At 0, the read encoding module reads the identity encoding in the identity encoding module, and transmits the verification password to the second sending buffer module, and the second sending buffer module combines the verification password with the read The combination of the extracted identity codes obtains a new system password, and transmits the new system password to the second added verification module through a two-way data channel; the second added verification module checks the received The received new system password calculates the verification data, and transmits the verification data to the second sending buffer module through the two-way data channel, and the second sending buffer module adds the verification data to the new system password to form a feedback password, And the feedback password is transmitted to the second antenna interface module through the information feedback module, and the second antenna interface module uses the high-frequency electromagnetic wave signal to feed the feedback password to the second antenna interface module through the second antenna coil. The first antenna coil, the first antenna interface module transmits the feedback password received by the first antenna coil to the first receiving buffer module, and the first verification and error correction module judges the Whether the feedback cipher data in the first receiving buffer module has filled the verification algorithm data group, when the feedback cipher data has filled the verification algorithm data group, the first verification error correction module according to the set The verification algorithm judges whether the feedback password in the first receiving buffer module is correct, and when the feedback password is correct, determines that the new system password in the feedback password is correct, and transmits the verification password in the new system password in the feedback password to The first password verification module, the first password verification module verifies whether the verification password is legal, and when the verification password is legal, the read information module reads the information from the object database according to the identity code in the new system password Read the corresponding identity in the module information, and then display valid identity information in the information display module through the display interface module, when the verification password is invalid, display invalid identity information in the information display module through the display interface module Identity information; when the display interface module is in the display working state, the first sending buffer module and the timing sending module are closed by the closing control module.

An encoding writing module can be set between the second password verification module and the identity encoding module according to actual needs, the second password verification module, the encoding writing module, and the identity encoding module It is sequentially connected with the reading and coding module.

An identification method of the above-mentioned identification system, which includes the following steps:

a. Press the start switch to provide working power for the identification device through the first power module, and the identification device is powered on and resets to work;

b. The timing sending module of the identification device starts the first sending buffer module to read the verification password in the verification password module, and the first sending buffer module adds a system command to form a system password after the verification password read in, and passes the system password through two-way data The channel is transmitted to the first added verification module; the first added verification module calculates the verification data for the received system password according to the set verification algorithm, and transmits the verification data to the first sending buffer module through the bidirectional data channel, The first sending buffer module adds verification data to the system password to form a comprehensive password;

c. The first sending buffer module transmits the received integrated password to the first antenna interface module; the first antenna interface module sends the high-frequency code carrying the integrated password to the radio frequency identification chip through the first antenna coil connected to the first antenna interface module Electromagnetic wave signal;

d. After the second antenna coil of the second antenna interface module connected to the radio frequency identification chip receives the high-frequency electromagnetic wave signal carrying the integrated code sent by the first antenna coil, the high-frequency electromagnetic wave signal is sent to the second antenna interface module;

e. The second antenna interface module converts the induced voltage of the high-frequency electromagnetic wave signal in the second antenna coil into the working power of the radio frequency identification chip and outputs it from the second power supply module for the use of the radio frequency identification chip, and the second antenna interface module is from the carrying The integrated password is separated from the high-frequency electromagnetic wave signal of the integrated password, and the integrated password is transmitted to the second receiving buffer module;

f. The second verification and error correction module judges whether the comprehensive password data in the second receiving buffer module is filled with the verification algorithm data group, if it is full, the second verification and error correction module judges the first verification algorithm according to the set verification algorithm Whether the integrated password in the second receiving buffer module is correct, if correct, then the verification password in the system password in the integrated password in the second receiving buffer module is transmitted to the second password verification module to verify the password verification;

g. The second password verification module verifies whether the verification password is legal, if the verification password is legal, then judge whether the read count value in the read count module needs to increase the count according to the system command in the system password, if the count needs to be increased, then increase the count , and read the count value through the read count module, otherwise, do not increase the count, and directly read the count value through the read count module; then judge whether the read count value exceeds the read count limit value, if not exceed the read count value Count limit value, or the read count limit value is 0, then the read code module reads the identity code in the identity code module and continues to execute; if the verification password is invalid, or the read count value has exceeded the read count limit value and the read count limit value is not 0, then the read encoding module reads the invalid identity code to determine that the radio frequency identification chip is invalid;

h. The verification password is transmitted to the second sending buffer module, and the verification password is combined with the read identity code in the second sending buffer module to obtain a new system password, and the new system password is transmitted to the second increase through a two-way data channel verification module; the second addition verification module calculates the verification data for the received new system password according to the verification algorithm set, and transmits the verification data to the second sending buffer module through the two-way data channel, and the second sending buffer The module adds verification data to the new system password to form a feedback password;

i. The second sending buffer module transmits the feedback password to the second antenna interface module through the information feedback module; the second antenna interface module uses the second antenna coil connected to the second antenna interface module to feed back the feedback password to the second antenna interface module through a high-frequency electromagnetic wave signal identification device;

j. After the first antenna interface module of the identification device receives the feedback password fed back by the second antenna coil using a high-frequency electromagnetic wave signal through the first antenna coil, it transmits the feedback password to the first receiving buffer module;

k. The first verification and error correction module judges whether the feedback cipher data in the first receiving buffer module is filled with the verification algorithm data group, if it is full, the first verification and error correction module judges the first verification algorithm according to the set verification algorithm Whether the feedback password in the receiving buffer module is correct, if correct, then determine that the new system password in the feedback password is correct, and transmit the verification password in the new system password in the feedback password in the first receiving buffer module to the first password The verification module performs verification password verification;

l. whether the first password verification module verifies whether the verification password is legal, if the verification password is legal, then the reading information module reads the corresponding identity information from the object database module according to the identity code in the new system password, and then passes through the display interface module in the information Valid identity information is displayed in the display module; if the verification password is invalid, invalid identity information is displayed in the information display module through the display interface module;

m. Determine whether the display interface module is in the display working state, if the display interface module is in the display working state, then close the first sending buffer module and the timing sending module by closing the control module; otherwise, repeat step b to step m.

The read count limit value is a variable value.

Compared with the prior art, the advantage of the present invention is that the identification system is based on the unique identity code of the identification object stored in the customized radio frequency identification chip, and then through the wireless induction method (transmitted by high-frequency electromagnetic wave signal) and identification The device cooperates to confirm the unique identity of the identification object, which effectively achieves the purpose of anti-counterfeiting; because the unique identity code of the unique identification object is completely enclosed in the radio frequency identification chip, it can only be read by the matching identification device, not only the identification of the object The security of the system is fully guaranteed, and the phenomenon of losing the identification information of the identification object due to environmental problems is effectively avoided; the identification system is based on radio frequency identification technology, and the radio frequency identification chip can be placed in the internal area of the identification object. It can completely avoid the disadvantages of disclosing the identity information of the identification object in the existing anti-counterfeiting technology, and has flexible use, wide application range, and is not easy to be counterfeited and cracked; The specific requirements of the object set the read count limit value. Once the read count limit value is exceeded, the RFID chip will automatically fail. When the read count limit value is set to 0, there is no limit to the number of reads. This can effectively avoid The drawbacks of the radio frequency identification chip being illegally recycled and reused, on the other hand, can also take into account special occasions that require repeated identification; the radio frequency identification chip of the present invention can be bound to a disposable fragile sticker to make a disposable radio frequency identification label, The radio frequency identification label can be attached to a certain part of the identification object, and it will be broken when it is torn off, and it will be invalid if it is damaged. It is not only convenient to use, but also further avoids the disadvantages of being illegally recycled and reused; Make a hard identification tag on the quality sheet material, and place it inside the identification object that cannot be damaged; the identity code and the reading count limit value in the radio frequency identification chip of the present invention can be directly customized in the chip, and the radio frequency identification chip can also be used The writing device, after verifying the legitimacy of the super password sent by the radio frequency identification chip writing device through the second verification password module of the chip, writes the read counting limit value in the read counting module of the chip, and passes the coding of the chip. The writing module writes into the identity coding module of the chip; in addition, the system structure of the present invention is simple, easy to use, and the method of the present invention is flexible and has a wide application range.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the identification device of the identification system of the present invention;

Fig. 2 is a schematic diagram of the internal composition structure of the radio frequency identification chip of the identification system of the present invention;

Fig. 3 is a schematic diagram 2 of the internal structure of the radio frequency identification chip of the identification system of the present invention;

Fig. 4 is a flowchart of the identification method of the present invention;

Fig. 5 is a schematic diagram of the application of the identity recognition system of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Embodiment 1: As shown in Figure 1 and Figure 2, an identity recognition system includes a customized radio frequency identification chip 1b for storing the unique identity code of the identified object and an identification device 1a matching the radio frequency identification chip 1b . The identification device 1a is provided with a first power supply module 11 that provides working power for the identification device 1a, a first antenna interface module 12, a first receiving buffer module 13, a first password verification module 14, a reading information module 15, a display An interface module 16 , a shutdown control module 17 and a first sending buffer module 18 . The first antenna interface module 12 is provided with a first antenna coil 121, the first power supply module 11 is connected with a start switch 111, one end of the start switch 111 is connected with a battery 112, the start switch 111 is turned on to provide working power for the identification device 1a, The first receiving buffer module 13 is also connected with the first error correction module 131 through the bidirectional data channel 132, the information reading module 15 is also connected with the object database module 151, and the display interface module 16 is also connected with the overtime judging module 162 and information display Module 161, the first sending buffer module 18 is also connected with verification password module 183 and timing sending module 181, and the first sending buffer module 18 is also connected with the first increase verification module 182 by bidirectional data channel 184, the first sending buffer module 18 Connect with the first antenna interface module 12 again; The radio frequency identification chip 1b includes the second antenna interface module 22, the second reception buffer module 23, the second password verification module 24, the reading counting module 25, the reading encoding module 26 connected in sequence , the second sending buffer module 27 and the information feedback module 28, the second antenna interface module 22 is connected with the second power supply module 21, the second antenna interface module 22 is provided with the second antenna coil 221, the second receiving buffer module 23 also The second verification and error correction module 231 is connected through the bidirectional data channel 232, the read encoding module 26 is also connected with the identity coding module 261, and the second sending buffer module 27 is also connected with the second increase verification module 271 through the bidirectional data channel 272 , the second sending buffer module 27 is connected with the information feedback module 28, and the information feedback module 28 is connected with the second antenna interface module 22 again; Verify the verification password in the password module 183, and add a system command to form a system password after the verification password read in, then transmit the system password to the first increase check module 182 through the bidirectional data channel 184, and the first increase check module 182 according to The set verification algorithm calculates the verification data for the received system password, and transmits the verification data to the first sending buffer module 18 through the bidirectional data channel 184, and the first sending buffer module 18 adds the verification data to the system password to form Integrated password, and integrated password is transmitted to the first antenna interface module 12, and the first antenna interface module 12 sends the high-frequency electromagnetic wave signal that carries integrated password to the second antenna coil 221 by the first antenna coil 121; The second antenna coil 221 receives After the high-frequency electromagnetic wave signal carrying the integrated password sent by the first antenna coil 121, the high-frequency electromagnetic wave signal is sent to the second antenna interface module 22, and the second antenna interface module 22 transmits the high-frequency electromagnetic wave signal to the second antenna coil 221. The induced voltage in is converted into the working power of the radio frequency identification chip 1b and is output from the second power supply module 21 for the use of the radio frequency identification chip 1b, and the second antenna interface module 22 separates the integrated password from the high frequency electromagnetic wave signal carrying the integrated password, and pass the integrated password to Lost to the second receiving buffer module 23, whether the second verification error correction module 231 judges whether the integrated password data in the second receiving buffer module 23 has filled up the verification algorithm data group, when the integrated password data has filled up the verification algorithm data group When verifying the algorithm data group, the second verification and error correction module 231 judges whether the comprehensive password in the second receiving buffer module 23 is correct according to the verification algorithm set, and when the comprehensive password is correct, the second receiving buffer module 23 The verification password in the system password in the comprehensive password is transmitted to the second password verification module 24, and the second password verification module 24 verifies whether the verification password is legal, and when the verification password is legal, it judges the reading counting module 25 according to the system instruction in the system password Whether the read count value in the need to increase the count, increase the count when the count needs to be increased, and read the count value through the read count module 25, do not increase the count when the count does not need to be increased, and directly read through the read count module 25 count value, then judge whether the count value read out exceeds the read count limit value, when not exceeding the read count limit value or read count limit value 0, the read encoding module 26 reads the identity in the identity encoding module 261 Encoding, the verification password is transmitted to the second sending buffer module 27, and the second sending buffer module 27 combines the verification password with the read identity code to obtain a new system password, and transmits the new system password to the second through the two-way data channel 272. Add a verification module 271; the second verification module 271 calculates the verification data for the received new system password according to the set verification algorithm, and transmits the verification data to the second sending buffer module 27 through the bidirectional data channel 272 , the second sending buffer module 27 adds check data to the new system password to form a feedback password, and transmits the feedback password to the second antenna interface module 22 through the information feedback module 28, and the second antenna interface module 22 utilizes the second antenna coil 221 The high-frequency electromagnetic wave signal feeds back the feedback password to the first antenna coil 121, and the first antenna interface module 12 transmits the feedback password received by the first antenna coil 121 to the first receiving buffer module 13, and the first verification and error correction module 131 judges Whether the feedback cipher data in the first receiving buffer module 13 has filled up the check algorithm data group, when the feedback cipher data has filled up the check algorithm data set, the first check error correction module 131 checks according to the set check algorithm Judging whether the feedback password in the first receiving buffer module 13 is correct, when the feedback password is correct, determine that the new system password in the feedback password is correct, and transmit the verification password in the new system password in the feedback password to the first password verification module 14. The first password verification module 14 verifies whether the verification password is legal. When the verification password is legal, the read information module 15 reads the corresponding identity information from the object database module 151 according to the identity code in the new system password, and then passes the display interface Module 16 displays valid identity information in information display module 161, and when verification password is illegal, shows invalid identity information in information display module 161 by display interface module 16; When display interface module 16 When it is in the display working state, the first sending buffer module 18 and the timing sending module 181 are closed through the closing control module 17 .

The first antenna coil 121 and the second antenna coil 221 in this embodiment are all made of metal wires, their diameters can be customized with the size of the identification object, and their number of turns can be customized according to the diameter size and the identification device sent The degree of resonance matching between the frequencies of wireless high-frequency electromagnetic wave signals is adjusted.

The second antenna interface module 22 and its second antenna coil 221 in the present embodiment are all integrated circuits (ICs) that meet "China's financial integrated circuit (IC) card-non-contact specification that has nothing to do with application" and remove all storage units. ) card, and draw power from it to form the second power supply module 21, draw the received information to the second receiving buffer module 23 for further processing, and the sending information of the second antenna interface module 22 is introduced from the information feedback module 28; the first antenna interface Module 12 and its first antenna coil 121 are integrated circuit (IC) card read-write interface circuits that meet "China's financial integrated circuit (IC) card-non-contact specification that has nothing to do with application", and lead the received information to the first The receiving buffer module 13 performs further processing, and the sending information of the first antenna interface module 12 is imported from the first sending buffer module 18 .

In this embodiment, the start switch 111 can be pressed to turn on the working power of the identification device 1a.

Embodiment two: the structure of this embodiment is basically the same as the structure of embodiment one, the only difference is that a code writing module can be set between the second password verification module 24 and the identity coding module 261 of the radio frequency identification chip 1b according to actual needs 241, as shown in Figure 3, the second password verification module 24, the coding writing module 241, the identity coding module 261 and the reading coding module 26 are sequentially connected, and the identity coding can be written into the identity coding module 261 through the coding writing module 241 .

Based on the identity recognition system of Embodiment 1 shown in Fig. 1 and Fig. 2, Fig. 4 provides a kind of identity recognition method, and it comprises the following steps:

a. Press the start switch to provide working power for the identification device through the first power module, and the identification device is powered on and resets to work;

b. The timing sending module of the identification device starts the first sending buffer module to read the verification password in the verification password module, and the first sending buffer module adds a system command to form a system password after the verification password read in, and passes the system password through two-way data The channel is transmitted to the first added verification module; the first added verification module calculates the verification data for the received system password according to the set verification algorithm, and transmits the verification data to the first sending buffer module through the bidirectional data channel, The first sending buffer module adds verification data to the system password to form a comprehensive password;

c. The first sending buffer module transmits the received integrated password to the first antenna interface module; the first antenna interface module sends the high-frequency code carrying the integrated password to the radio frequency identification chip through the first antenna coil connected to the first antenna interface module Electromagnetic wave signal;

d. After the second antenna coil of the second antenna interface module connected to the radio frequency identification chip receives the high-frequency electromagnetic wave signal carrying the integrated code sent by the first antenna coil, the high-frequency electromagnetic wave signal is sent to the second antenna interface module;

e. The second antenna interface module converts the induced voltage of the high-frequency electromagnetic wave signal in the second antenna coil into the working power of the radio frequency identification chip and outputs it from the second power supply module for the use of the radio frequency identification chip, and the second antenna interface module is from the carrying The integrated password is separated from the high-frequency electromagnetic wave signal of the integrated password, and the integrated password is transmitted to the second receiving buffer module;

f. The second verification error correction module judges whether the comprehensive password data in the second receiving buffer module fills up the set verification algorithm data group, if it is full, then the second verification error correction module according to the set verification The algorithm judges whether the integrated password in the second receiving buffer module is correct, if correct, then the verification password in the system password in the integrated password in the second receiving buffer module is transmitted to the second password verification module to verify the password verification;

g. The second password verification module verifies whether the verification password is legal, if the verification password is legal, then judge whether the read count value in the read count module needs to increase the count according to the system command in the system password, if the count needs to be increased, then increase the count , and read the count value through the read count module, otherwise, do not increase the count, and directly read the count value through the read count module; then judge whether the read count value exceeds the read count limit value, if not exceed the read count value Count limit value, or the read count limit value is 0, then the read code module reads the identity code in the identity code module and continues to execute; if the verification password is invalid, or the read count value has exceeded the read count limit value and the read count limit value is not 0, then the read encoding module only reads the invalid identity code, and it can be determined that the radio frequency identification chip is invalid;

h. The verification password is transmitted to the second sending buffer module, and the verification password is combined with the read identity code in the second sending buffer module to obtain a new system password, and the new system password is transmitted to the second increase through a two-way data channel verification module; the second addition verification module calculates the verification data for the received new system password according to the verification algorithm set, and transmits the verification data to the second sending buffer module through the two-way data channel, and the second sending buffer The module adds verification data to the new system password to form a feedback password;

i. The second sending buffer module transmits the feedback password to the second antenna interface module through the information feedback module; the second antenna interface module uses the second antenna coil connected to the second antenna interface module to feed back the feedback password to the second antenna interface module through a high-frequency electromagnetic wave signal identification device;

j. After the first antenna interface module of the identification device receives the feedback password fed back by the second antenna coil using a high-frequency electromagnetic wave signal through the first antenna coil, it transmits the feedback password to the first receiving buffer module;

k. The first verification and error correction module judges whether the feedback cipher data in the first receiving buffer module is filled with the set verification algorithm data group, if it is full, the first verification and error correction module according to the set verification The algorithm judges whether the feedback password in the first receiving buffer module is correct, if correct, then determines that the new system password in the feedback password is correct, and transmits the verification password in the new system password in the feedback password in the first receiving buffer module to The first password verification module performs verification password verification;

l. whether the first password verification module verifies whether the verification password is legal, if the verification password is legal, then the reading information module reads the corresponding identity information from the object database module according to the identity code in the new system password, and then passes through the display interface module in the information Effective identity information is displayed in the display module; if the verification password is illegal or the timeout judging module connected with the display interface module identifies overtime, then the invalid identity information is displayed in the information display module by the display interface module; in this embodiment, the identification timeout 0.5 seconds to 2 seconds can be selected;

m. Judging whether the display interface module is in the display working state, that is, whether the display interface module displays valid identity information or invalid identity information, if the display interface module displays valid identity information or invalid identity information, then by closing the control module Turn off the first sending buffer module and the timing sending module; otherwise, repeat step b to step m.

Through the above steps, the identification of the identification object can be realized conveniently, and the purpose of anti-counterfeiting is effectively achieved.

The read count limit value in this identification method is variable, and different read count limit values can be set according to the needs of the identification object. If the read count limit value is 0, unlimited reads can be performed.

The time interval for the timing sending module in the identity recognition method to regularly start the first sending buffer module to read the verification password in the verification password module can be selected from 20 milliseconds to 200 milliseconds.

The verification algorithm set in this identification method can be the RS (Reed-Solomon, Reed-Solomon) verification algorithm, and the RS verification algorithm is formed by the operation of the RS code in the Galois Field GF (Galois Field) The verification and error correction method, the set verification algorithm can also be replaced with other verification algorithms according to actual needs.

The second antenna coil in this identification method uses high-frequency electromagnetic wave signals to feed back the feedback password to the first antenna coil. The high-frequency electromagnetic wave signal sent by the coil is realized by loss modulation.

The radio frequency identification chip 1b in the identification system of the present invention can be made into a one-time radio frequency identification paper label, and then the radio frequency identification paper label is pasted on the identification object with a very sticky adhesive. Due to the strong viscosity of the adhesive, and the paper material of the RFID paper label is very easy to tear, as long as the RFID paper label is broken, the second antenna coil (fine wire) on the RFID chip 1b will break It cannot be reconnected, and the pasted RFID tags cannot be peeled off and reused illegally. The radio frequency identification chip 1b can also be made into a hard radio frequency identification tag. Compared with the disposable radio frequency identification paper label, the paper or plastic material used in the hard radio frequency identification label has a certain hardness and is not easy to break, and is no longer A very sticky adhesive is required. Hard radio frequency identification tags can be used inside identification objects that do not need to be cracked, so there is no need to consider the illegal reuse of hard radio frequency identification tags. Fig. 5 has provided the synoptic diagram that the radio frequency identification tag made by the radio frequency identification chip 1b of the present invention is applied on the identification object and cooperates with the identification device 1a. During use, the identification device 1a is close to the radio frequency identification chip 1b, so that the Within a distance of 5cm between them, the identification device 1a can be pressed to activate the identification switch 111 to start identification.

The identification device 1a in the identification system of the present invention can be customized into two different types: customer type and business type according to needs, the difference between the two is only that the business type identification device 1a sends high-frequency electromagnetic wave signals to the radio frequency identification chip 1b The reading count increase information of the radio frequency identification chip 1b is not included; after the identification device 1a of the merchant type identifies the radio frequency identification chip 1b, the remaining number of times that the radio frequency identification chip 1b is identified will not be shortened.

The ID code inside the radio frequency identification chip 1b and its read count limit value can be directly customized in the radio frequency identification chip 1b according to the needs of the identification object, or can be written once by a radio frequency identification chip writing device (not shown in the figure). enter. The radio frequency identification chip writing device here and the identification device 1a of the present invention have the same structure and basically the same working principle, the difference is only that the information sent by the radio frequency identification chip writing device is unidirectional, and no radio frequency identification chip 1b is required Send feedback information, and with super password and the object number that needs to write, after the second password verification module 24 of radio frequency identification chip 1b verifies the legitimacy of the super password that radio frequency identification chip writing device sends, in radio frequency identification chip 1b While writing the read count limit value in the read counting module 25 of the radio frequency identification chip 1b, utilize the code writing module 241 that is connected with the second password verification module 24 of the radio frequency identification chip 1b to write the identity code that the radio frequency identification chip writing device sends The identity encoding module 261 of the radio frequency identification chip 1b. The RFID chip writing device is only allowed to be used by the issuer of the RFID chip before issuing its RFID chip to its customers.

Claims (4)

1, a kind of identification system, it comprise the unique identity coding that is used to deposit identifying object radio-frequency (RF) identification chip and with the supporting recognition device of described radio-frequency (RF) identification chip, it is characterized in that described recognition device is provided with promising described recognition device first power module of working power and first antenna interface module that is linked in sequence are provided, first receives buffer module, first password authentication module, read information module, display interface module, closing control module and first sends buffer module, described first antenna interface module is provided with first aerial coil, be connected with starting switch on described first power module, one end of described starting switch is connected with battery, described first receives buffer module is connected with the first verification correction module by bidirectional data path, the described information module that reads is connected with the object data library module, described display interface module is connected with overtime judge module and information display module, described first sends buffer module is connected with authentication password module and timed sending module, described first sends buffer module is connected with the first increase verification module by bidirectional data path, and described first sends buffer module is connected with described first antenna interface module; Described radio-frequency (RF) identification chip is provided with second antenna interface module that is linked in sequence, second receives buffer module, second password authentication module, read counting module, read coding module, second sends buffer module and information feedback module, be connected with the second source module on described second antenna interface module, described second antenna interface module is provided with second aerial coil, described second receives buffer module is connected with the second verification correction module by bidirectional data path, the described coding module that reads is connected with the identity coding module, described second sends buffer module is connected with the second increase verification module by bidirectional data path, and described information feedback module is connected with described second antenna interface module; After the work of described recognition device electrification reset, described timed sending module starts described first and sends buffer module and read in authentication password in the described authentication password module, and the authentication password back increase system directive formation system password that is reading in, then system password is transferred to described first by bidirectional data path and increases inspection module, described first increases the verification module according to the system password calculation check data of checking algorithm to receiving of setting, and checking data is transferred to described first by bidirectional data path sends buffer module, described first sends buffer module forms comprehensive password to system password increase checking data, and give described first antenna interface module with comprehensive password transmission, described first antenna interface module sends the high frequency electromagnetic wave signal of carrying comprehensive password by described first aerial coil to described second aerial coil; After described second aerial coil receives the high frequency electromagnetic wave signal of carrying comprehensive password of described first aerial coil transmission, this high frequency electromagnetic wave signal is sent into described second antenna interface module, described second antenna interface module is converted to the working power of described radio-frequency (RF) identification chip with the induced voltage of high frequency electromagnetic wave signal in described second aerial coil and uses for described radio-frequency (RF) identification chip from described second source module output, described second antenna interface module is isolated comprehensive password from the high frequency electromagnetic wave signal of carrying comprehensive password simultaneously, and give described second to receive buffer module the comprehensive password transmission, whether the described second verification correction module has filled up the checking algorithm data set to the comprehensive code data in the described second reception buffer module is judged, when having filled up the checking algorithm data set in the comprehensive code data, the described second verification correction module judges according to the checking algorithm of setting whether the described second comprehensive password that receives in the buffer module is correct, when comprehensive password is correct, authentication password in the system password in the described second comprehensive password that receives in the buffer module is transferred to described second password authentication module, whether the described second password authentication module authentication password is legal, when authentication password is legal, according to the system directive in the system password judge described read in the counting module read count value whether needs increase counting, when increasing counting, needs increase counting, and read count value by the described counting module that reads, when not needing to increase counting, do not increase counting, directly read count value by the described counting module that reads, judge then whether the count value read exceeds and read the counting limit value, do not read the counting limit value or read the counting limit value when being 0 when exceeding, the described coding module that reads reads identity coding in the described identity coding module, authentication password is transferred to described second sends buffer module, described second sends buffer module obtains new system password with authentication password and the identity coding combination that reads out, and new system password is transferred to the described second increase verification module by bidirectional data path; Described second increases the verification module according to the new system password calculation check data of checking algorithm to receiving of setting, and checking data is transferred to described second by bidirectional data path sends buffer module, described second sends buffer module increases checking data formation feedback cipher to new system password, and feedback cipher is transferred to described second antenna interface module by described information feedback module, described second antenna interface module utilizes high frequency electromagnetic wave signal that feedback cipher is fed back to described first aerial coil by described second aerial coil, the feedback cipher that described first antenna interface module receives described first aerial coil is transferred to described first and receives buffer module, the described first verification correction module judges whether the described first feedback cipher data that receive in the buffer module have filled up the checking algorithm data set, when the feedback cipher data have been filled up the checking algorithm data set, the described first verification correction module judges according to the checking algorithm of setting whether described first feedback cipher that receives in the buffer module is correct, when feedback cipher is correct, determine that the new system password in the feedback cipher is correct, and the authentication password in the new system password in the feedback cipher is transferred to described first password authentication module, whether the described first password authentication module authentication password is legal, when authentication password is legal, the described information module that reads reads corresponding identity information according to the identity coding in the new system password from described object data library module, in described information display module, show effective identity information by described display interface module again, when authentication password is illegal, in described information display module, show invalid identity information by described display interface module; When described display interface module is in display working condition, closes described first by described closing control module and send buffer module and described timed sending module.

2, a kind of identification system according to claim 1, it is characterized in that being provided with the coding writing module between described second password authentication module and the described identity coding module, described second password authentication module, described coding writing module, described identity coding module and the described coding module that reads are linked in sequence.

3, the personal identification method of a kind of claim 1 or 2 described identification systems is characterized in that it may further comprise the steps:

A. press starting switch and provide working power for recognition device, the work of recognition device electrification reset by first power module;

B. the timed sending module of the recognition device startup first transmission buffer module is read in the authentication password in the authentication password module, first sends buffer module increases system directive formation system password in the authentication password back of reading in, and system password is transferred to the first increase inspection module by bidirectional data path; First increases the verification module according to the system password calculation check data of checking algorithm to receiving of setting, and checking data is transferred to first by bidirectional data path sends buffer module, first sends buffer module increases checking data to system password and forms comprehensive password;

C. first send comprehensive password transmission that buffer module will receive to first antenna interface module; First antenna interface module sends the high frequency electromagnetic wave signal of carrying comprehensive password by first aerial coil that inserts first antenna interface module to radio-frequency (RF) identification chip;

D. second aerial coil that inserts second antenna interface module of radio-frequency (RF) identification chip is sent this high frequency electromagnetic wave signal into second antenna interface module after receiving the high frequency electromagnetic wave signal of carrying comprehensive password that first aerial coil sends;

E. second antenna interface module is converted to the working power of radio-frequency (RF) identification chip with the induced voltage of high frequency electromagnetic wave signal in second aerial coil and uses for radio-frequency (RF) identification chip from the output of second source module, second antenna interface module is isolated comprehensive password from the high frequency electromagnetic wave signal of carrying comprehensive password simultaneously, and comprehensive password transmission is received buffer module to second;

F. the second verification correction module judges whether the second comprehensive code data that receives in the buffer module fills up the checking algorithm data set, if it is full, then the second verification correction module judges according to the checking algorithm of setting whether the second comprehensive password that receives in the buffer module is correct, if correct, then the authentication password in the system password in the second comprehensive password that receives in the buffer module be transferred to second password authentication module and carry out the authentication password checking;

G. whether the second password authentication module authentication password is legal, if authentication password is legal, then judge according to the system directive in the system password whether needs increase counting to the count value that reads that reads in the counting module, increase counting if desired, then increase counting, and read count value by reading counting module, otherwise, do not increase counting, directly read count value by reading counting module; And then judge whether the count value read exceeds and read the counting limit value that do not read the counting limit value if exceed, perhaps reading the counting limit value is 0, then reads coding module and reads identity coding in the identity coding module, and continue to carry out; If authentication password is illegal, the count value of perhaps reading has exceeded that to read the counting limit value and read the counting limit value be not 0, then reads coding module and reads in invalid identity coding, determines that this radio-frequency (RF) identification chip is invalid;

H. authentication password is transferred to second and sends buffer module, send in the buffer module second authentication password and the identity coding combination that reads out are obtained new system password, and new system password is transferred to the second increase verification module by bidirectional data path; Second increases the verification module according to the new system password calculation check data of checking algorithm to receiving of setting, and checking data is transferred to second by bidirectional data path sends buffer module, second sends buffer module increases checking data to new system password and forms feedback cipher;

I. the second transmission buffer module is transferred to second antenna interface module with feedback cipher by the information feedback module; Second aerial coil that the second antenna interface module utilization inserts second antenna interface module feeds back to recognition device by high frequency electromagnetic wave signal with feedback cipher;

J. first antenna interface module of recognition device receives after second aerial coil utilizes the feedback cipher of high frequency electromagnetic wave signal feedback by first aerial coil, feedback cipher is transferred to first receives buffer module;

K. the first verification correction module judges whether the first feedback cipher data that receive in the buffer module fill up the checking algorithm data set, if it is full, then the first verification correction module judges according to the checking algorithm of setting whether first feedback cipher that receives in the buffer module is correct, if it is correct, determine that then the new system password in the feedback cipher is correct, and the authentication password in the new system password in first feedback cipher that receives in the buffer module is transferred to first password authentication module carries out the authentication password checking;

L. whether the first password authentication module authentication password is legal, if authentication password is legal, then read information module and from the object data library module, read corresponding identity information, in information display module, show effective identity information by display interface module again according to the identity coding in the new system password; If authentication password is illegal, then in information display module, show invalid identity information by display interface module;

M. judge whether display interface module is in display working condition,, then close first and send buffer module and timed sending module by the closing control module if display interface module is in display working condition; Otherwise then repeated execution of steps b is to step m.

4, a kind of personal identification method according to claim 3, it is characterized in that described read the counting limit value be variable value.

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