CN103714357A - Radio frequency tag data coding method and radio frequency tag data coding system for vehicle identification - Google Patents
Radio frequency tag data coding method and radio frequency tag data coding system for vehicle identification Download PDFInfo
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Abstract
The invention discloses a radio frequency tag data coding system and a radio frequency tag data coding method for vehicle identification. The system comprises a computer, an encryption/decryption and verification code calculation device, an RFID reading-writing device and an RFID tag. The computer divides an EPC region of the RFID tag into a data part and a verification code part and codes a license plate number; the encryption/decryption and verification code calculation device encrypts the coded license plate number data and calculates the verification code of the license plate number data; the computer concatenates the license plate number data and the verification code; the RFID reading-writing device writes the concatenation data into the EPC region; the encryption/decryption and verification code calculation device carries out decryption to obtain decryption data and calculates the verification code; and the computer compares the decrypted verification code with the verification code part of the EPC region and judges whether data in the EPC region is tampered. The defect that data encryption and verification code calculation cannot be carried out due to the fact that the license plate number is stored in the EPC region of the RFID tag in the prior art is overcome.
Description
Technical field
The present invention relates to a kind of radio-frequency (RF) tag data-encoding scheme that is applied to vehicle identification, particularly relate to a kind of in vehicle identification application, to being stored in data in RFID tag, encode, data after encoding are encrypted and calculate identifying code, prevent the method that data are known or distorted by unauthorized personnel.
Background technology
RFID(Radio Frequency Identification, radio-frequency (RF) identification) technology have fast, the feature of long distance, multiple goal, non-sight line recognition article, and passive RFID tags do not need battery-powered and maintenance, thereby be widely used in the field that vehicle identification etc. needs tracking items.At present, the ultra-high frequency RFID label being widely adopted is the RFID label that meets ISO/IEC 18000-6C standard.
The rfid system fundamental purpose of ISO/IEC 18000-6C standard is the single product management being applied in logistic track, and requirement can realize fast, the RFID tag recognition of long distance and reading; Because RFID label is for Individual Items management, just require the with low cost of RFID label.Like this; the security of RFID label data is lower; utilize the mandatory order collection of ISO/IEC 18000-6C standard regulation; only can realize the write-protect to RFID label data; can not realize the read protection to RFID label data; the data that are stored in RFID label can be read by the rfid interrogator of any ISO/IEC of meeting 18000-6C standard, and the data of storing in RFID label do not have secret to say.
In vehicle identification application, need to be under vehicle high-speed motion conditions, also can automatically identify the RFID label being arranged on vehicle, thereby realize the automatic identification to vehicle, therefore, the identification data of vehicle (being license plate number) need to be stored in electronic article coding (Electronic Product Code, EPC) district of RFID label.
At present; the method that the data that are stored in RFID label E PC district are protected is to encrypt and calculate identifying code; because the data capacity in EPC district only has 96 bits conventionally; and the length of encrypted data block is necessary for the integral multiple of 64 bits; the length of identifying code is at least 32 bits, and like this, the multipotency of license plate number takies 64 bits; directly store license plate number (Chinese character adds 6 alphanumeric characters) into EPC district, will take the storage space that surpasses 64 bits.Therefore need a kind of coding method, license plate number is encoded with being no more than 64 bits, could lay the first stone for realizing the encryption of license plate number and calculating identifying code.The present invention produces based on this current demand just.
Summary of the invention
The object of the present invention is to provide a kind of radio-frequency (RF) tag data-encoding scheme and system thereof that is applied to vehicle identification, be used for overcoming vehicle identification application, directly license plate number stored to RFID label E PC district and cannot data be encrypted and be calculated the defect of identifying code.
To achieve these goals, the invention provides a kind of radio-frequency (RF) tag data encording system that is applied to vehicle identification, it is characterized in that, comprising: computing machine, encrypt deciphering and identifying code computing equipment, RFID read-write equipment, RFID label; Described computing machine connect described encryptions decipher and identifying code computing equipment, described RFID read-write equipment, described RFID label is arranged on the vehicle that will identify, described RFID read-write equipment is arranged on the position that need to identify vehicle;
Described computing machine is divided into data, identifying code part by the EPC zoning of described RFID label, and license plate number is encoded;
Described encrypt deciphering and identifying code computing equipment to the license plate number data encryption after encoding, and the identifying code of the license plate number data after calculation code;
Described computing machine is by the license plate number data after encrypting and identifying code serial connection thereof;
Described RFID read-write equipment writes described EPC district by serial connection data;
Described computing machine receives after described serial connection data when described RFID read-write equipment, by described encryption deciphering and identifying code computing equipment be decrypted and obtain data decryption, and identifying code after secure processing device encrypts, the identifying code in identifying code after this deciphering and described EPC district is partly compared, judge whether the data in described EPC district were tampered.
Described radio-frequency (RF) tag data encording system, wherein, described data division is the data of 64 bits, and described identifying code is partly the identifying code of 32 bits, and described computing machine is by 64 bits of encoded for license plate number.
Described radio-frequency (RF) tag data encording system, wherein, in 64 bits of car plate data, vehicle identification application type coding accounts for 8 bits, version coding and accounts for 2 bits, car plate color and kind coding and account for that 4 bits, license plate number coding account for 42 bits, outer padding data accounts for 8 bits.
Described radio-frequency (RF) tag data encording system, wherein, described encryption deciphering and identifying code computing equipment further comprise:
Encryption device, for the car plate data encryption of 64 bits to after coding;
Computing equipment, for the identifying code of 32 bits of the car plate data of 64 bits after calculation code;
Deciphering module, is decrypted for the bit of the data division in DuiEPC district, obtains data decryption.
Described radio-frequency (RF) tag data encording system, wherein, described serial connection data, wherein license plate number data are front 64 bits, identifying code is rear 32 bits.
Described radio-frequency (RF) tag data encording system, wherein, described computing machine further comprises:
Comparison module, for the identifying code of 32 bits and the identifying code in described EPC district that deciphering is obtained, partly compare, judge whether the data in described EPC district were tampered: if identical, show that the data in described EPC district were not tampered, otherwise, show that the data in described EPC district were tampered.
To achieve these goals, the invention provides a kind of radio-frequency (RF) tag data-encoding scheme that is applied to vehicle identification, it is characterized in that, comprising:
Step 2, to the license plate number data encryption after coding, and the identifying code of the license plate number data after calculation code;
Step 5, RFID read-write equipment reads serial connection data from described EPC district, and is transferred to computing machine;
Step 6, computing machine receives described serial connection data, and by described encryption deciphering and identifying code computing equipment be decrypted and obtain data decryption, and identifying code after secure processing device encrypts, the identifying code in identifying code after this deciphering and described EPC district is partly compared, judge whether the data in described EPC district were tampered.
Described radio-frequency (RF) tag data-encoding scheme, wherein, in described step 1, comprising:
Data division is the data division of 64 bits, and identifying code is partly the identifying code part of 32 bits, and by 64 bits of encoded for license plate number.
Described radio-frequency (RF) tag data-encoding scheme, wherein, in described step 1, comprising:
In 64 bits of car plate data, vehicle identification application type coding accounts for 8 bits, version coding and accounts for 2 bits, car plate color and kind coding and account for that 4 bits, license plate number coding account for 42 bits, outer padding data accounts for 8 bits.
Described radio-frequency (RF) tag data-encoding scheme, wherein, in described step 2, comprising:
License plate number data encryption to 64 bits after coding, and the identifying code of 32 bits of the license plate number data of 64 bits after calculation code.
Described radio-frequency (RF) tag data-encoding scheme, wherein, in described step 3, comprising:
Computing machine is concatenated into 96 bits by the license plate number data after encrypting and the identifying code of 32 bits, and wherein, license plate number data are front 64 bits, and identifying code is rear 32 bits.
Described radio-frequency (RF) tag data-encoding scheme, wherein, in described step 6, comprising:
The identifying code in the identifying code of 32 bits that computing machine obtains deciphering and described EPC district partly compares, judge whether the data in described RFID label EPC district were tampered: if identical, show that the data in described EPC district were not tampered, otherwise, show that the data in described EPC district were tampered.
The present invention has overcome in vehicle identification application, directly license plate number is stored to RFID label E PC district and cannot data be encrypted and be calculated the defect of identifying code, provide that a kind of energy is enough is no more than the method that 64 bits are encoded to license plate number, to identifying code is encrypted and calculated to license plate number, and practical in the vehicle identification RFID of various scales application system.
With the existing method that license plate number data is directly stored in to label E PC district, and the method that car plate data encryption is stored in tagging user district is compared, the present invention has following remarkable advantage and beneficial effect:
1) license plate number of all motor vehicles that the Neng Jiang of the present invention People's Republic of China (PRC) travels within the border, is encoded into 64 bits, has saved storage space, is conducive to license plate number encrypt and calculate identifying code, has realized license plate number privacy and tamper-resistance properties.
2) the present invention is stored in label EPC district by car plate data, has in the situation that vehicle high-speed moves, and still can identify the advantage of vehicle.In each storage area of RFID label, in EPC district, the reading speed of data is the fastest, reads distance farthest.Car plate data are stored in to EPC district, though the travelling speed of vehicle surpass 200 kilometers/time, utilize commercial rfid interrogator also can read the data in EPC district.
3) implementation cost of the present invention is cheap.The RFID technology adopting in the present invention, encryption technology and identifying code computing technique are all ripe commercialization technology, and on the basis of original rfid system, the cost of increase is the cost of encryption device and identifying code calculation element, and this cost is very cheap.
Accompanying drawing explanation
Fig. 1 implements a kind of device schematic diagram that is applied to the radio-frequency (RF) tag data-encoding scheme of vehicle identification of the present invention;
Fig. 2 is a kind of radio-frequency (RF) tag data-encoding scheme schematic flow sheet that is applied to vehicle identification of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
As Fig. 1 implements a kind of device schematic diagram that is applied to the radio-frequency (RF) tag data-encoding scheme of vehicle identification of the present invention.
This device 100 comprises: computing machine 1, encryption, deciphering and identifying code computing equipment 2, RFID read-write equipment 3, RFID label 4.
Encryption, deciphering and identifying code computing equipment 2, can be any encryption equipment, encrypted card or PSAM card with encryption, deciphering and identifying code computing function, for example, and the PSAM card of Zhong electricity Hua Da company.
RFID read-write equipment 3, can be the read-write equipment of any ISO/IEC18000-6C of meeting standard, for example, and the M6E read write line of U.S. ThingMagic company.
Encryption, deciphering and identifying code computing equipment 2, for specific data is encrypted, data and calculating identifying code, and be connected with computing machine 1.
Further, encryption, deciphering and identifying code computing equipment 2 can comprise again:
Identifying code computing module 22, for the identifying code of 32 bits of the car plate data of 64 bits after calculation code;
Wherein, encrypting module 21 can adopt 3 heavy data encryption standards (Triple Data Encryption Standard of the < < of People's Bank of China finance integrated circuit card standard PBOC2.0 > > regulation, 3DES), the car plate data encryption to 64 bits after coding; Identifying code computing module 22 can adopt message authentication code (the Message AuthenticationCode of the < < of People's Bank of China finance integrated circuit card standard PBOC 2.0 > > regulations, MAC) computing method, the identifying code of 32 bits of the car plate data of 64 bits after calculation code.
RFID read-write equipment 3, for reading and writing the data that are stored on RFID label 4, and is connected with computing machine 1.
Further, computing machine 1 comprises again comparison module 11, for 32 bits behind the identifying code of 32 bits and RFID label 4 EPC districts are compared, judge whether the data in RFID label 4 EPC districts were tampered: if identical, show that the data in EPC district were not tampered, otherwise, show that the data in EPC district were tampered.
As shown in Figure 2, be a kind of radio-frequency (RF) tag data-encoding scheme schematic flow sheet that is applied to vehicle identification of the present invention.
In conjunction with Fig. 1, this flow process has been described in a kind of application of the vehicle identification at RFID, with being no more than the method that 64 bits are encoded to vehicle identification number, specifically comprises the following steps:
Step 201, is divided into two parts by the EPC zoning of 96 bits of ultra-high frequency RFID label 4: the identifying code part of the data division of 64 bits and 32 bits.
Step 202, by 64 bits of encoded for license plate number.
Step 203, utilize encrypting module 21, adopt 3 heavy data encryption standardss of the < < of People's Bank of China finance integrated circuit card standard PBOC 2.0 > > regulations, the car plate data encryption to 64 bits after coding; Utilize identifying code computing module 22, adopt the message authentication code calculation method of the < < of People's Bank of China finance integrated circuit card standard PBOC 2.0 > > regulations, the identifying code of 32 bits of the car plate data of 64 bits after calculation code.
Step 204, computing machine 1 is concatenated into 96 bits by the license plate number data after encrypting and the identifying code of 32 bits, wherein, and front 64 bits of license plate number data bit, identifying code is rear 32 bits.
Step 205, utilizes RFID read-write equipment 3 that the data of 96 bits are write to inserting RFID tags 4 EPC districts.
Step 206, on the vehicle of needs identification, installs RFID label 4; In the position that need to identify vehicle, RFID read-write equipment 3 is installed, read the data of 96 bits in RFID label 4 EPC districts, and be transferred to computing machine 1.
Step 207, when utilizing RFID read-write equipment 3 to read from RFID label 4 data of 96 bits in EPC district, utilize deciphering module 23, decipher front 64 bits and obtain data decryption, recycling identifying code computing module 22, the identifying code of 64 bits after secure processing device encrypts, 32 bits behind the identifying code of data decryption and label E PC district are compared, if identical, show that the data in EPC district are not tampered, otherwise, show that the data in EPC district were tampered.
Further, in above-mentioned steps 202, vehicle identification application type coding accounts for 8 bits, version coding and accounts for 2 bits, car plate color and kind coding and account for that 4 bits, license plate number coding account for 42 bits, outer padding data accounts for 8 bits, shown in 1,2.The type of service of application type coded representation vehicle identification, can comprise: taxi, motorbus, dangerous cargo vehicle, school bus, engineering truck etc., its binary representation from 00000000 to 11111111, for example, can adopt 8 bit-binary " 00000000 " expressions " universal class "; The version coding of 2 bits, for adapting to the replacement of license plate number, for example, can adopt " 00 " of 2 bit-binary to represent initial version.Outer padding data can be other additional information of 8 bits, and such as vehicle etc., if do not need out of Memory, outer padding data can be 8 bit-binary " 00000000 ".
Table 1 is license plate number coding structure, and table 2 is coding structures of car plate color and kind.
Table 1
Table 2
Further, in above-mentioned steps 203, by coding after 64 bit license plate number data transmission to encryption, deciphering and identifying code computing equipment 2, utilize the encrypting module 21 of encryption, deciphering and identifying code computing equipment 2, adopt 3 heavy data encryption standardss of the < < of People's Bank of China finance integrated circuit card standard PBOC 2.0 > > regulations, the car plate data encryption to 64 bits after coding.The message authentication code calculation method simultaneously encrypt, the identifying code computing module 22 in deciphering and identifying code computing equipment 2 adopting the < < of People's Bank of China finance integrated circuit card standard PBOC 2.0 > > regulations, the identifying code of 32 bits of the license plate number data of 64 bits after calculation code.
Further, in above-mentioned steps 205, by computing machine 1 by the data transmission of 96 bits to RFID read-write equipment 3,96 Bit datas are write to inserting RFID tags 4 EPC districts.
Further, in above-mentioned steps 207, also comprise:
By computing machine 1, utilize encryption, deciphering and identifying code computing equipment 2, to front 64 bits deciphering in 96 Bit datas, and the identifying code of 64 bits after secure processing device encrypts, the identifying code of decrypted result and calculating is transferred to computing machine 1; And
By computing machine 1 is relatively encrypted, deciphering and identifying code computing equipment 2 calculates identifying code and rear 32 bits of 96 Bit datas, judge in RFID label 4 EPC districts, whether data were tampered.If identical, show that in EPC district, data were not tampered, otherwise, show that in EPC district, data were tampered.
Further, in above-mentioned steps 202, the detailed coding method of various vehicles is as follows:
(A) blue background color car plate
Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Other 5 alphanumerics are pressed table 3 coding.
For example, the coding structure of car plate " capital A 12345 " is: the blue background color car plate of 0000(00000000(application type) 00(version number)) 000000(Chinese character " capital ") 001010(letter " A ") 000001(numeral " 1 ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") 00000000(fills outward).
(B) yellow background color car plate
(a) medium-and-large-sized manned passenger vehicle, large-tonnage lorry, agricultural vehicle, motorcycle.Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Other 5 alphanumerics are pressed table 3 coding.
For example, the coding structure of car plate " capital A 23456 " is: 00000000(application type) 00(version number) the medium-and-large-sized manned passenger vehicle of 0001(, large-tonnage lorry, agricultural vehicle, motorcycle) 000000(Chinese character " capital ") 001010(letter " A ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") 000110(numeral " 6 ") 00000000(fills outward).
(b) coach's vehicle.Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Other 4 alphanumerics are pressed table 3 coding; Last Chinese character " " needn't be encoded (encoding together with car plate color), adopts interior filling of 1 or 0 coding of 6 bits.
For example, the coding structure of car plate " capital A 2345 learns " is: 0010(learner-driven vehicle 00000000(application type) 00(version number)) 000000(Chinese character " capital ") 001010(letter " A ") 000010(digital " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") filling in 111111() 00000000(fills outward).
(C) black matrix look car plate
(a) joint venture and vehicle with three kinds of capital.Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Other 5 alphanumerics are pressed table 3 coding.
For example, the coding structure of car plate " capital A 23456 " is: 00000000(application type) 00(version number) 0011(joint venture and vehicle with three kinds of capital) 000000(Chinese character " capital ") 001010(letter " A ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") 000110(numeral " 6 ") 00000000(fills outward).
(b) Hongkong and Macro enter the vehicle on interior ground.Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Remain 4 alphanumerics and press table 3 coding; Last Chinese character " port " and " Australia " needn't encode (encoding together with car plate color), adopt interior filling of 1 or 0 coding of 6 bits.
For example, the coding structure of car plate " Guangdong A 2345 ports " is: 00000000(application type) 00(version number) 0100(Hong Kong enters the vehicle on interior ground) 010010(Chinese character " Guangdong ") 001010(letter " A ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") fill in 111111() 00000000(fills outward).
For example, the coding structure of car plate " Guangdong A 2345 Australia " is: 00000000(application type) 00(version number) 0101(Macao enters the vehicle on interior ground) 010010(Chinese character " Guangdong ") 001010(letter " A ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") fill in 111111() 00000000(fills outward).
(c) mechanism to China of foreign country and the United Nations vehicle.First Chinese character " makes " to encode (encoding together with car plate color), and other 6 numerals are pressed table 3 coding, finally adopts interior filling of 1 or 0 coding of 6 bits.
For example, the coding structure that car plate " makes 123456 " is: mechanism to China of 0110(foreign country and the United Nations vehicle 00000000(application type) 00(version number)) 000001(numeral " 1 ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") 000110(numeral " 6 ") 00000000(fills outward).
(d) consulate to China of foreign country vehicle.Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Other 4 alphanumerics are pressed table 3 coding; Last Chinese character " neck " needn't be encoded (encoding together with car plate color), adopts interior filling of 1 or 0 coding of 6 bits.
For example, the coding structure of car plate " Shanghai A 2345 necks " is: 0111(foreign consulate vehicle 00000000(application type) 00(version number)) 001000(Chinese character " Shanghai ") 001010(letter " A ") 000010(digital " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") filling in 111111() 00000000(fills outward).
(D) white background car plate
(a) police vehicle.Table 3 coding pressed in the Chinese character that represents provincial region; Table 3 coding pressed in the letter that represents region region; Other 4 alphanumerics are pressed table 3 coding; Last Chinese character " police " needn't be encoded (encoding together with car plate color), adopts 1 or 0 coding of 6 bits to fill.
For example, the coding structure of car plate " capital A 2345 is alert " is: 1000(police vehicle 00000000(application type) 00(version number)) 000000(Chinese character " capital ") 001010(letter " A ") 000010(digital " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") filling in 111111() 00000000(fills outward).
(b) People's Armed Police's vehicle.2 letters in foremost " WJ " needn't encode (encoding together with car plate color); 2 digital direct codings are subsequently decimal number 1-32, corresponding binary number 000001--100000; Other 5 alphanumerics are pressed table 3 coding, finally adopt 1 or 0 coding of 6 bits to fill.
For example, car plate " WJ
3123456 " coding structure is: 1001(People's Armed Police's vehicle 00000000(application type) 00(version number)) 011111(direct coding " 31 ") 000010(digital " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") filling in 111111() 00000000(fills outward).
(c) military vehicle.Table 3 coding pressed in first Chinese character; First letter is pressed table 3 coding; Other 5 alphanumerics are pressed table 3 coding.
For example, the coding structure of car plate " A of army 12345 " is: 1010(military vehicle 00000000(application type) 00(version number)) 000000(Chinese character " army ") 001010(letter " A ") 000001(numeral " 1 ") 000010(numeral " 2 ") 000011(numeral " 3 ") 000100(numeral " 4 ") 000101(numeral " 5 ") 00000000(fills outward).
Table 3
The license plate number of the motor vehicles that the present invention travels the People's Republic of China (PRC) within the border with 64 bits is encoded; after encrypting and calculate identifying code, be stored in RFID label EPC district; there is privacy and the tamper-resistance properties of protection license plate number, and can, in the situation that vehicle high-speed moves, identify vehicle.The present invention will play an important role at RFID in vehicle identification application.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (12)
1. a radio-frequency (RF) tag data encording system that is applied to vehicle identification, is characterized in that, comprising: computing machine, encryption deciphering and identifying code computing equipment, RFID read-write equipment, RFID label; Described computing machine connect described encryptions decipher and identifying code computing equipment, described RFID read-write equipment, described RFID label is arranged on the vehicle that will identify, described RFID read-write equipment is arranged on the position that need to identify vehicle;
Described computing machine is divided into data, identifying code part by the EPC zoning of described RFID label, and license plate number is encoded;
Described encrypt deciphering and identifying code computing equipment to the license plate number data encryption after encoding, and the identifying code of the license plate number data after calculation code;
Described computing machine is by the license plate number data after encrypting and identifying code serial connection thereof;
Described RFID read-write equipment writes described EPC district by serial connection data;
Described computing machine receives after described serial connection data when described RFID read-write equipment, by described encryption deciphering and identifying code computing equipment be decrypted and obtain data decryption, and identifying code after secure processing device encrypts, the identifying code in identifying code after this deciphering and described EPC district is partly compared, judge whether the data in described EPC district were tampered.
2. radio-frequency (RF) tag data encording system according to claim 1, is characterized in that, described data division is the data of 64 bits, and described identifying code is partly the identifying code of 32 bits, and described computing machine is by 64 bits of encoded for license plate number.
3. radio-frequency (RF) tag data encording system according to claim 1 and 2, it is characterized in that, in 64 bits of car plate data, vehicle identification application type coding accounts for 8 bits, version coding and accounts for 2 bits, car plate color and kind coding and account for that 4 bits, license plate number coding account for 42 bits, outer padding data accounts for 8 bits.
4. radio-frequency (RF) tag data encording system according to claim 2, is characterized in that, described encryption deciphering and identifying code computing equipment further comprise:
Encryption device, for the car plate data encryption of 64 bits to after coding;
Computing equipment, for the identifying code of 32 bits of the car plate data of 64 bits after calculation code;
Deciphering module, is decrypted for the bit of the data division in DuiEPC district, obtains data decryption.
5. according to the radio-frequency (RF) tag data encording system described in claim 2 or 4, it is characterized in that, described serial connection data, wherein license plate number data are front 64 bits, identifying code is rear 32 bits.
6. radio-frequency (RF) tag data encording system according to claim 5, is characterized in that, described computing machine further comprises:
Comparison module, for the identifying code of 32 bits and the identifying code in described EPC district that deciphering is obtained, partly compare, judge whether the data in described EPC district were tampered: if identical, show that the data in described EPC district were not tampered, otherwise, show that the data in described EPC district were tampered.
7. a radio-frequency (RF) tag data-encoding scheme that is applied to vehicle identification, is characterized in that, comprising:
Step 1, computing machine is divided into data, identifying code part by the EPC zoning of RFID label, and license plate number is encoded;
Step 2, to the license plate number data encryption after coding, and the identifying code of the license plate number data after calculation code;
Step 3, by the license plate number data after encrypting and identifying code serial connection thereof, obtains being connected in series data;
Step 4, RFID read-write equipment writes described EPC district by serial connection data;
Step 5, RFID read-write equipment reads serial connection data from described EPC district, and is transferred to computing machine;
Step 6, computing machine receives described serial connection data, and by described encryption deciphering and identifying code computing equipment be decrypted and obtain data decryption, and identifying code after secure processing device encrypts, the identifying code in identifying code after this deciphering and described EPC district is partly compared, judge whether the data in described EPC district were tampered.
8. radio-frequency (RF) tag data-encoding scheme according to claim 7, is characterized in that, in described step 1, comprising:
Data division is the data division of 64 bits, and identifying code is partly the identifying code part of 32 bits, and by 64 bits of encoded for license plate number.
9. according to the radio-frequency (RF) tag data-encoding scheme described in claim 7 or 8, it is characterized in that, in described step 1, comprising:
In 64 bits of car plate data, vehicle identification application type coding accounts for 8 bits, version coding and accounts for 2 bits, car plate color and kind coding and account for that 4 bits, license plate number coding account for 42 bits, outer padding data accounts for 8 bits.
10. radio-frequency (RF) tag data-encoding scheme according to claim 8, is characterized in that, in described step 2, comprising:
License plate number data encryption to 64 bits after coding, and the identifying code of 32 bits of the license plate number data of 64 bits after calculation code.
Radio-frequency (RF) tag data-encoding scheme described in 11. according to Claim 8 or 10, is characterized in that, in described step 3, comprising:
Computing machine is concatenated into 96 bits by the license plate number data after encrypting and the identifying code of 32 bits, and wherein, license plate number data are front 64 bits, and identifying code is rear 32 bits.
12. radio-frequency (RF) tag data-encoding schemes according to claim 11, is characterized in that, in described step 6, comprising:
The identifying code in the identifying code of 32 bits that computing machine obtains deciphering and described EPC district partly compares, judge whether the data in described RFID label EPC district were tampered: if identical, show that the data in described EPC district were not tampered, otherwise, show that the data in described EPC district were tampered.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375918.5A CN103714357B (en) | 2012-09-29 | 2012-09-29 | A kind of radio-frequency (RF) tag data-encoding scheme being applied to vehicle identification and system thereof |
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| CN201210375918.5A CN103714357B (en) | 2012-09-29 | 2012-09-29 | A kind of radio-frequency (RF) tag data-encoding scheme being applied to vehicle identification and system thereof |
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| Publication Number | Publication Date |
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| CN103714357A true CN103714357A (en) | 2014-04-09 |
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| CN106408069A (en) * | 2016-09-30 | 2017-02-15 | 广州日滨科技发展有限公司 | User's data writing and reading method and system for EPC cards |
| CN108364474A (en) * | 2018-02-14 | 2018-08-03 | 重庆市城投金卡信息产业股份有限公司 | Data Fusion method and system based on image and RFID information |
| CN108830737A (en) * | 2018-05-28 | 2018-11-16 | 中国石油大学(华东) | oil pipe digital management system |
| CN109711488A (en) * | 2017-10-26 | 2019-05-03 | 孙琳 | The recognition methods and system of picture pick-up device |
| CN111062225A (en) * | 2019-12-17 | 2020-04-24 | 中铁信安(北京)信息安全技术有限公司 | Storage cabinet article identification method and intelligent storage cabinet |
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| CN111062225A (en) * | 2019-12-17 | 2020-04-24 | 中铁信安(北京)信息安全技术有限公司 | Storage cabinet article identification method and intelligent storage cabinet |
| CN111062225B (en) * | 2019-12-17 | 2023-07-07 | 中铁信安(北京)信息安全技术有限公司 | Article identification method for storage cabinet and intelligent storage cabinet |
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