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Basic data | Standard ID | GB/T 20851.4-2019 (GB/T20851.4-2019) | | Description (Translated English) | Electronic toll collection -- Dedicated short range communication -- Part 4: Equipment application | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L65 | | Classification of International Standard | 35.200 | | Word Count Estimation | 54,537 | | Date of Issue | 2019-05-10 | | Date of Implementation | 2019-12-01 | | Older Standard (superseded by this standard) | GB/T 20851.4-2007 | | Quoted Standard | GB/T 2312; GB/T 2423.5-1995; GB/T 2423.10-2008; GB/T 2423.18-2012; GB/T 3482-2008; GB/T 4208-2017; GB/T 9254; GB/T 17618; GB/T 17626.2; GB/T 18655; GB/T 20135-2006; GB/T 20839-2007; GB/T 20851.1-2019; GB/T 20851.2-2019; GB/T 20851.3-2019; JR/T 0025.9-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the general application rules, general technical requirements for key equipment, OBE data structure, application interface and application security, and transaction process for dedicated short-range communication equipment for electronic toll collection. This standard is applicable to electronic toll collection systems for highways and urban roads, and can be used for reference in the fields of automatic vehicle identification and vehicle access management. | GB/T 20851.4-2019: Electronic toll collection -- Dedicated short range communication -- Part 4: Equipment application
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electronic toll collection--Dedicated short range communication--Part 4. Equipment application
ICS 35.200
L65
National Standards of People's Republic of China
Replaces GB/T 20851.4-2007
Dedicated short-range communication for electronic toll collection
Part 4. equipment applications
Part 4. Equipmentapplication
Published on May 10,.2019
2019-12-01 Implementation
State Administration of Market Supervision
Published by China National Standardization Administration
Contents
Foreword III
1 Scope 1
2 Normative references 1
3 Terms and definitions, abbreviations 2
4 Application General 2
5 General technical requirements for key equipment 5
6 OBE data structure 8
7 ETC application interface 11
8 ETC Application Security 18
9 ETC transaction process 22
Appendix A (Normative) OBE ASN.1 Data Structure 37
Appendix B (informative) Definition of DSRC data frame between RSE and OBE for composite consumer transaction application 43
Appendix C (informative) Example of concatenation of multiple T-APDUs in the same LSDU 47
Foreword
GB/T 20851 `` Special short-range communication for electronic toll collection '' is divided into 5 parts.
--- Part 1. physical layer;
--- Part 2. Data link layer;
--- Part 3. Application layer;
--- Part 4. Equipment application;
--- Part 5. Test methods for main parameters of the physical layer.
This part is Part 4 of GB/T 20851.
This section is drafted in accordance with the rules given in GB/T 1.1-2009.
This section replaces GB/T 20851.4-2007 "Special short-range communication for electronic tolling-Part 4. Equipment application", and GB/T 20851.4-
Compared with.2007, the main technical changes in addition to editorial changes are as follows.
--- Modified some normative references (see Chapter 2, Chapter 2 of the.2007 edition);
--- Added normative references for battery requirements and transportation safety (see Chapter 2);
--- Amended some abbreviations (see 3.2, 3.2 of.2007 version);
--- Modified the ETC application requirements only for two-chip applications (see 4.1, 4.1 of the.2007 version);
--- Deleted the file types in the OBE data organization (see Table 1 of the.2007 edition);
--- Deleted the key code in the OBE key (see Table 2 of the.2007 edition);
--- Removed the code in the file properties (see Table 3 of the.2007 version);
--- Modified the "no permissions" to "prohibited" in the file attributes (see Table 3, Table 3 of the.2007 edition);
--- Modified the TDES security calculation algorithm to SM4 algorithm (see 5.1.2, 5.1.2 of the.2007 version);
--- Modify the size of the information storage space that OBE should support (see 5.1.3, 5.1.3 of the.2007 version);
--- Modified the provisions of standard configuration components and optional configuration components that OBE should support (see 5.1.4,.2007 version 5.1.4);
--- Increased battery safety requirements (see 5.1.8);
--- Modified the requirements for OBE environmental conditions (see 5.1.11, 5.1.10 of the.2007 version);
--- Increased the requirements for OBE electromagnetic compatibility performance (see 5.1.12);
--- Added suggestions for the installation position of OBE in the car (see 5.1.13);
--- Added provisions for OBE wake-up sensitivity and equivalent isotropic radiant power adjustable function (see 5.1.14);
--- Modified the RSE should have the built-in PSAM security authentication module as a secure access module or a chip or board with the same security level
Card or auxiliary equipment (see 5.2.3,.2007 version 5.2.3);
--- Modified the communication interface requirements of the RSE host computer (see 5.2.4, 5.2.4 of the.2007 version);
--- Added the requirement that the RSE should have a network monitoring interface (see 5.2.4);
--- Modified the requirements for RSE power supply (see 5.2.8,.2007 version 5.2.8);
--- Modified the requirements of RSE environmental conditions (see 5.2.10,.2007 version 5.2.10);
--- Added requirements for RSE electromagnetic compatibility performance (see 5.2.12);
--- Added the equivalent omnidirectional radiant power adjustment function regulation of RSE (see 5.2.13);
--- Deleted the types, read attributes, and write attributes in OBE data structures and attributes (see 6.1 of the.2007 version);
--- Deleted the key code of the system key file (see Table 6 of the.2007 edition);
--- Added the disassembly status in the system information file (see 6.2.2);
--- Deleted the key code of the ETC application key file (see Table 8 of the.2007 edition);
--- Amended the provisions of ETC application retention files (see 6.3.4,.2007 version 6.3.4);
--- Deleted the application file of the identification station and the application file of the urban road toll (see 6.3.5, 6.3.6 of the.2007 version);
--- Modified the fetch of the starting position of the operation data in the request parameter requirements of the GetSecure service primitive and SetSecure service primitive
Value range (see 7.2.2.1, 7.3.2.1, 7.2.2.1, 7.3.2.1 of the.2007 version);
--- Modified the functional provisions of SetSecure service primitives (see 7.3.1, 7.3.1 of the.2007 version);
--- Added human-computer interaction indication content identification in SetMMI (see 7.6.1);
--- Modified the key algorithm in ETC application security, replaced the TDES algorithm with the SM4 algorithm (see Chapter 8, Chapter 8 of the.2007 edition);
--- Added rules for ETC transaction process (see Chapter 9);
--- Modified binary coded representation of EtcVehicleFile license plate color in OBE's ASN.1 data structure, SetMMIRq
Data structure, SysInfoFile data structure (see Appendix A, Appendix A of the.2007 edition);
--- Removed the appendix "Example of ETC application transaction process" (see Appendix B of the.2007 edition);
--- Added the definition of DSRC data frame for composite consumer transaction application in ETC transaction process (see Appendix B);
--- Increased the provision of multiple T-APDU data frames spliced in the same LSDU (see Appendix C).
This section is proposed and managed by the National Intelligent Transportation System Standardization Technical Committee (SAC/TC268).
This section was drafted by. Highway Research Institute of the Ministry of Transport, Zhongguancun CCCC Guotong Intelligent Transportation Industry Alliance, Beijing CCCC Guotong
Intelligent Transportation System Technology Co., Ltd., Beijing Juli Technology Co., Ltd., Shenzhen Jinyi Technology Co., Ltd., Beijing Sutongke
Technology Co., Ltd., Beijing Wanji Technology Co., Ltd., Shenzhen Chenggu Technology Co., Ltd.
The main drafters of this section. Liu Hongwei, Chen Bingxun, Xiao Di, Song Xianghui, Wang Gang, Han Bin, Zhou Bin, Zhang Chunjie, Gui Jie, Liu Yongping, Zhang Beihai,
Zhao Yuyang, Zhou Jian, Gong Fujun.
The previous versions of the standards replaced by this section are.
--- GB/T 20851.4-2007.
Dedicated short-range communication for electronic toll collection
Part 4. equipment applications
1 Scope
This part of GB/T 20851 specifies the general rules for the application of short-range communication equipment for electronic toll collection and the general technical requirements for key equipment
Requirements, OBE data structures, application interfaces and application security, transaction processes.
This section applies to electronic toll systems for highways and urban roads. References can be made to areas such as automatic vehicle identification and vehicle access management.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 2312 Basic set of Chinese character encoding character set for information exchange
GB/T 2423.5-1995 Environmental testing for electric and electronic products Part 2. Test methods Test Ea and guidelines. Impact
GB/T 2423.10-2008 Environmental testing for electric and electronic products Part 2. Test methods Test Fc. Vibration (sine)
GB/T 2423.18-2012 Environmental test Part 2. Test method Test Kb. Salt spray, alternating (sodium chloride solution)
GB/T 3482-2008 Lightning test method for electronic equipment
GB/T 4208-2017 enclosure protection level (IP code)
GB/T 9254 Radio disturbance limits and measurement methods for information technology equipment
GB/T 17618 Limits and measurement methods for immunity of information technology equipment
GB/T 17626.2 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test
GB/T 18655 Limits and measurement methods for radio disturbance characteristics of vehicles, ships and internal combustion engines to protect on-board receivers
GB/T 20135-2006 Intelligent Transportation System Electronic Toll System Framework Model
GB/T 20839-2007 General terms for intelligent transportation systems
GB/T 20851.1-2019 Short-distance communication dedicated to electronic charges Part 1. Physical layer
GB/T 20851.2-2019 Short-distance communication dedicated to electronic charges Part 2. Data link layer
GB/T 20851.3-2019 Short-distance communication dedicated to electronic charges Part 3. Application layer
JR/T 0025.9-2010 China Financial Integrated Circuit (IC) Card Specification Part 9. Application Guide for Electronic Wallet Extension
ISO /IEC 7816-1 Identification card integrated circuit cards-Part 1. Physical characteristics of cards with electric shock
cards-Integratedcircuitcards-Part 1. Cardswithcontacts-Physicalcharacteristics)
ISO /IEC 7816-2 Identification cards. Integrated circuit cards. Part 2. Dimensions and positions of contacts on card with electric shock
(Identificationcards-Integratedcircuitcards-Part 2. Cardswithcontacts-Dimensionsandlocation
ofthecontacts)
ISO /IEC 7816-3 Identification card integrated circuit cards-Part 3. Card electrical signals and transmission protocols with electric shock
(Identificationcards-Integratedcircuitcards-Part 3. Cardswithcontacts-Electricalinterfaceand
transmissionprotocols)
ISO /IEC 7816-4 Identification cards. Integrated circuit cards. Part 4. Structures, security and commands for exchange.
cards-Integratedcircuitcards-Part 4. Organization, securityandcommandsforinterchange)
ISO /IEC 14443 (All Parts) Identification Cards Contactless Card Specifications Proximity Cards (Identificationcards-Contactless
integratedcircuitcards-Proximitycards)
UL1642 American Lithium Battery Safety Standard (STANDARDFORSAFETYLithiumBatteries)
UN38.3 United Nations Manual of Tests and Standards for the Transport of Dangerous Goods, Section 38.3 (RecommendationsontheTRANSPORT
OFDANGEROUSGOODS. ManualofTestsandCriteria)
3 Terms and definitions, acronyms
3.1 Terms and definitions
The terms and definitions defined in GB/T 20135-2006 and GB/T 20839-2007 apply to this document.
3.2 Acronyms
The following abbreviations apply to this document.
AVI. Automatic Vehicle Identification (Automatic Vehicle Identification)
DID. DirectoryIdentifier
DSRC. DedicatedShortRangeCommunication
ETC. Electronic Toll Collection
FID. File Identifier
ICC. Integrated Circuit Card
MAC. Message Authentication Code
OBE. On-Board Equipment
RSE. Roadside Equipment
UI. UnnumberedInformation
4 General rules of application
4.1 ETC system composition
The ETC system consists of a front-end system and a background database system. The front-end system includes a lane control system, RSE, OBE, and ICC.
OBE should be a two-chip type, supporting ICC read and write. In ETC applications, the two-chip type OBE involves the function of electronic payment
Realized by ICC, OBE provides ICC to RSE information forwarding function. The composition of the ETC system is shown in Figure 1.
Content.
Figure 1 ETC system structure
An example of a typical two-chip OBE ETC transaction is shown in Figure 2.
Figure 2 Example of a typical two-chip OBE ETC transaction
4.2 General requirements for OBE data
4.2.1 The data in OBE is organized using directories and files.
4.2.2 The directory in OBE is divided into a system directory and an application directory.The system directory is the root directory of OBE.
There can be multiple subdirectories recorded, one for each application. There are multiple files in each directory, there should be no other subdirectories in the subdirectory
table of Contents.
4.2.3 The files are divided into two types. key files and application files. key files store keys used to control secure access to application data;
Files are used to store application data.
4.2.4 Directories and files are identified by DID and FID, respectively. Directory ID DID range is 0x00 ~ 0x0F, where DID is 0x00
This is the root directory. The file ID FID range is 0x00 ~ 0x7F, where the FID is 0x00 is the key file. The file in the root directory is
System files and application files are stored in the application directory. For ETC applications, the catalog number should be 0x01.
4.2.5 OBE data organization structure is shown in Table 1.
Table 1 OBE data organization structure
Directory/file ASN.1 data structurea
0x00
Root directory
0x00 system key file SysKeyFile
0x01 SysInfoFile
0x01 ETC Application Catalog
0x00 ETC application key file EtcAppKeyFile
0x01 ETC application vehicle information file EtcAppVehicleFile
Other application directories
aASN.1 data structure according to Appendix A.
4.3 OBE Key
There are four types of keys. master key, maintenance key, authentication key, and encryption key. Master key sub-system master key and application master
Key, the system master key is in the system key file, and the application master key is in the corresponding application key file. See Table 2 for key functions.
Table 2 Key functions
Key Type Key Function Application Process
Master key
Files can be created after passing the certification;
Write to itself safely;
Write securely to other keys in the same directory;
The master key in the root directory is used to write the master key in the subdirectory
issued
Maintain a secure way to write key catalog files to releases
Authentication key, directory file access, read and write permissions, control transactions
Encryption and decryption of data during encryption key transmission
4.4 File Properties
File access is controlled by a key.
The deletion and creation of directories and files takes place under the control of the master key.
Ordinary files (non-key files) have four attributes. See Table 3 for file attributes.
Table 3 File attributes
Attribute description
Read and write freely, without any authentication or encryption processing, transmitted as clear text data
Can be read or written after authentication, transmitted as clear text data
Encrypted read or write data content is encrypted and transmitted as ciphertext data
Prohibit read or write permission
4.5 Extended Application Interface
The ETC device should provide an application interface based on the ACTION service primitive.
The ACTION service primitive shall meet the requirements of GB/T 20851.3-2019.
The extended ETC application interface is shown in Table 4.
Table 4 Extended ETC application interface
Operation type a Operation name description
0 GetSecure secure file reading, providing MAC and secure encryption interface
1 SetSecure secure file writing, providing MAC and secure encryption interface
2 GetRand takes a random number for security purposes
3 TransferChannel channel transmission, used to transmit APDU to OBE components
4 SetMMI Set the man-machine interface, standardize the content that OBE needs to unified instructions
The parameter of the corresponding ACTION service primitive is ActionType.
5 General technical requirements for key equipment
5.1 OBE overall technical requirements
5.1.1 Wireless link communication
The DSRC between OBE and RSE shall comply with the relevant provisions of GB/T 20851.1-2019 ~ GB/T 20851.3-2019.
5.1.2 Security
OBE safety requirements should meet the following requirements.
a) A secure access module should be provided to store access control keys and ETC application information, etc .;
b) shall support SM4 algorithm for data access and access control;
c) The writing of all initialization data should be transmitted using the encryption method of the SM4 algorithm;
d) It should have an ICC read-write interface, which should comply with ISO /IEC 7816-1 ~ ISO /IEC 7816-4 or ISO /IEC 14443
Relevant provisions of the TYPE-A standard;
e) The supported ICC transaction process shall comply with the regulations 7.3 and 7.4 of JR/T 0025.9-2010.
5.1.3 Information Storage
The storage of user information in OBE should be in the form of data blocks, and the addressing should be in the form of directories and files.
The secure access module in the OBE should have a storage space of not less than 16k bytes.
5.1.4 Parts
5.1.4.1 Standard configuration components
The two-chip type OBE should be configured with ICC read-write modules.
5.1.4.2 Optional configuration parts
OBE optional configuration components. speakers, character display, red and green indicator lights, USB interface, RS232 serial port, Bluetooth module, etc.
5.1.5 Anti-disassembly and recovery
The OBE should have the function of preventing the user from disassembling. Once it is disassembled, it should immediately set the corresponding standard in the corresponding information storage area in the OBE.
Log byte/flag.
ETC application failure caused by disassembly should be recoverable by software setting.
5.1.6 Application updates
OBE should support application updates, which can be done in DSRC or other ways.
5.1.7 Transaction history
OBE should support the storage of no less than 50 latest transaction records. The transaction records can be read out by DSRC or other methods.
5.1.8 Battery
OBE batteries should have corresponding safety, and meet the requirements of UL1642 and UN38.3.
5.1.9 Reliability
The OBE mean time between failures should be greater than 50000h.
5.1.10 Average maintenance-free time
OBE average maintenance-free time should be no less than 2 years (calculated based on 10 transactions per day).
5.1.11 Environmental conditions
Environmental conditions should meet the following requirements.
a) Working temperature. -25 ℃ ~ 70 ℃, cold area -40 ℃ ~ 70 ℃;
b) Storage temperature. -20 ℃ ~ 55 ℃;
c) Relative working humidity. 5% ~ 100%;
d) Vibration. It shall meet the requirements for the severity level of equipment application given in the third line of Table C.1 in Appendix C of GB/T 2423.10-2008.
The frequency range is 10Hz ~ 150Hz, the acceleration is 10m/s2, and the number of frequency sweep cycles in each axis direction is 20;
e) Shock. It should meet the requirements of the severe level given in the third line of Table 1 in Chapter 5 of GB/T 2423.5-1995, and the peak acceleration
300m/s2, the corresponding nominal pulse duration is 18ms, and the corresponding velocity variation is a half-sine of 3.4m/s.
5.1.12 EMC performance
For OBE equipment connected to the vehicle wiring harness or on-board power supply, its radio disturbance characteristics should meet the requirements of GB/T 18655
The requirements for the limit value shall be determined through consensus between the vehicle manufacturer and the equipment manufacturer.
The OBE immunity to electrostatic discharge shall be in accordance with the requirements of performance criterion B specified in GB/T 17618, and the test method shall be in accordance with GB/T 17626.2
According to the regulations, the contact discharge voltage is 6kV and the air discharge voltage is 8kV.
5.1.13 Installation position
For OBEs that are integrally mounted on the vehicle's front windshield, small passenger cars should be installed centered above the vehicle's front windshield (rear view
Near the mirror position), large passenger cars should be installed under the front windshield and the driver can easily insert and remove the ICC; for the front windshield
For vehicles with microwave windows on glass, OBE should be installed in the microwave window.
5.1.14 Other suggestions
OBE wake-up sensitivity can be divided into the following blocks on the premise of meeting the requirements of GB/T 20851.1-2019.
a) -43dBm ~ -47dBm;
b) -48dBm ~ -52dBm;
c) less than or equal to -53dBm;
d) Other ranges can be set.
The equivalent omnidirectional radiated power of OBE can be divided into the following blocks on the premise of meeting the requirements of GB/T 20851.1-2019.
a) -3dBm ~ 3dBm;
b) 3dBm ~ 10dBm;
c) Other ranges can also be set.
5.2 RSE overall technical requirements
5.2.1 Working methods
RSE works online.
The RSE shall provide an application-level service primitive interface.
5.2.2 Wireless link communication
The DSRC between RSE and OBE shall comply with the relevant provisions of GB/T 20851.1-2019 ~ GB/T 20851.3-2019.
5.2.3 Security
The RSE should be equipped with a security access module or a chip, board or auxiliary device that achieves the same security level to store the access control secret.
Key, all encryption and authentication processes are performed by secure hardware products.
5.2.4 Interface
The interface requirements supported by RSE are as follows.
a) It should support the communication interface of the host computer in Ethernet mode, other RS232, RS485 or USB interface forms are optional;
b) It should have a network monitoring interface that supports RSE key parameters, configuration management, version management, diagnostic testing, log management, alarms, etc.
Information monitoring function;
c) It should have TTL level isolated interface.
5.2.5 Program and application updates
RSE should have the ability to update online programs and applications through the host computer interface.
5.2.6 Installation
RSE equipment in the fixed installation mode shall support outdoor installation, and the protection level shall meet the requirements of GB/T 4208-2017, and may be
Roadside or top-hanging method; top-hanging installation method should be adopted, and it should be hoisted in the middle of the lane, and the hanging height should not be lower than 5.5m.
5.2.7 Communication area
The width of the communication area of the RSE equipment should be adjustable within the range of 3.3m.
Figure 3 Schematic of the width of the communication area
5.2.8 Power supply
RSE equipment should work normally under the power supply condition of AC voltage 220 × (1 ± 15%) V and frequency 50 × (1 ± 4%) Hz.
5.2.9 Reliability
The RSE should be greater than 70,000h.
5.2.10 Environmental conditions
Environmental conditions should meet the following requirements.
a) Working temperature. -20 ℃ ~ 55 ℃, cold area -35 ℃ ~ 40 ℃;
b) Storage temperature. -20 ℃ ~ 55 ℃;
c) Relative working humidity. 4% ~ 100%;
d) Vibration. It shall meet the requirements for the severity level of equipment application given in the first line of Table C.1 in Appendix C of GB/T 2423.10-2008
The frequency range is 10Hz ~ 150Hz, the acceleration is 5m/s2, and the number of frequency sweep cycles in each axis direction is 50;
e) Shock. It should meet the requirements of the severe level given in the third line of Table 1 in Chapter 5 of GB/T 2423.5-1995, and the peak acceleration
300m/s2, the corresponding nominal pulse duration is 18ms, and the corresponding speed change is half-sine is 3.4m/s;
f) Salt spray. It should meet the severe level 1 of GB/T 2423.18-2012;
g) Lightning strike. It should comply with GB/T 3482-2008, power line lightning strike severity level 4, signal line lightning strike severity level 2, power cord and signal
Lightning Strike Severity Level 4 between lines.
5.2.11 Degree of protection
The RSE (outdoor part) enclosure protection level should meet the requirements of IP65 in GB/T 4208-2017.
5.2.12 EMC performance
The radio disturbance performance index of the RSE shall meet the corresponding requirements of Class B in GB/T 9254.
The immunity performance of RSE shall meet the corresponding performance criteria specified in GB/T 17618.
5.2.13 Other requirements
The RSE equivalent omnidirectional radiated power should be within the range specified in GB/T 20851.1-2019 Table 1 and can be adjusted.
6 OBE data structure
6.1 Data Structure
OBE data is divided into two types. system data and application data. The OBE data structure is shown in Table 5.
Table 5 OBE data structure
Directory number File number File name ASN.1 Data structure definition
0System key file SysKeyFile
1 system information file SysInfoFile
0ETC application key file EtcKeyFile
1 ETC application vehicle information file EtcVehicleFile
2 ETC application transaction record file EtcTransactionFile
3 ETC application reserved file EtcReservedFile
15 0 Reserved
6.2 ...
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