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GB/T 28029.13-2025: Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB)
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Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB)
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GB/T 28029.13-2025
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Basic data | Standard ID | GB/T 28029.13-2025 (GB/T28029.13-2025) | | Description (Translated English) | Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | S70 | | Classification of International Standard | 45.060 | | Word Count Estimation | 18,199 | | Date of Issue | 2025-02-28 | | Date of Implementation | 2025-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 28029.13-2025: Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB)
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GB/T 28029.13-2025 English version. Electronic railway equipment - Train communication network (TCN) - Part 4-1.The test method of train communication network based on Wire Train Bus(WTB)
ICS 45.060
CCSS30
National Standard of the People's Republic of China
Rail Transit Electronic Equipment Train Communication Network (TCN)
Part 4-1.Wire Train Bus (WTB) based
Train communication network test method
Part 4-1.Thetestmethodoftraincommunicationnetworkbasedon
WireTrainBus(WTB)
Released on 2025-02-28
2025-09-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 2
5 General Principles 2
6 Test categories and items 3
7 Test methods 4
Reference 12
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is Part 4-1 of GB/T 28029 "Train Communication Network (TCN) for Rail Transit Electronic Equipment".
The following parts have been published.
--- Part 1.Basic structure;
--- Part 2-1.Wire Train Bus (WTB);
--- Part 2-2.Wire Train Bus (WTB) conformance test;
--- Part 2-3.TCN communication protocol;
--- Part 2-4.TCN application protocol;
--- Part 2-5.Ethernet Train Backbone (WLTB);
--- Part 2-6.Vehicle-to-ground communication;
--- Part 2-7.Wireless Train Backbone (WLTB);
--- Part 3-1.Multifunction Vehicle Bus (MVB);
--- Part 3-2.Multifunction Vehicle Bus (MVB) conformance test;
--- Part 3-3.CANopen Group Network (CCN);
--- Part 3-4.Ethernet Grouped Network (ECN);
--- Part 4-1.Test methods for train communication networks based on wired train bus (WTB).
This document is proposed by the National Railway Administration.
This document is under the jurisdiction of the National Rail Transit Electrical Equipment and System Standardization Technical Committee (SAC/TC278).
This document was drafted by. CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., China Railway Certification and Inspection Zhuzhou Traction Electrical Equipment Inspection Station Co., Ltd.
Company, China Academy of Railway Sciences Group Co., Ltd. Locomotive and Rolling Stock Research Institute, CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., CRRC
Qingdao Sifang Rolling Stock Research Institute Co., Ltd., CRRC Changchun Railway Vehicles Co., Ltd., and China Railway Inspection and Certification Center Co., Ltd.
The main drafters of this document are. Xiao Jiabo, Shen Hui, Zhong Sheng, Luo Yuan, Zhou Yonggang, Li Xiaoyong, Peng Yunlong, Xu Dongchao, Li Hailong and Yang Peng.
Introduction
The TCN network is the core component of the train, involving the quality and safety of train operation. GB/T 28029.3 stipulates the WTB equipment
This document supplements the test methods for TCN communication performance, guidance data for train network system design optimization, and train
Reference for communication troubleshooting. This document guides TCN communication performance testing, accumulates original test data, and optimizes subsequent network design.
GB/T 28029 is planned to consist of fourteen parts.
--- Part 1.Basic structure. The purpose is to specify the general architecture of the train communication network (TCN) to achieve GB/T 28029
Compatibility between defined marshaling networks and backbone networks.
--- Part 2-1.Twisted-wire train bus (WTB). The purpose is to specify the twisted-wire train bus (WTB). Applicable to open trains
Data communication between trains and within trains.
--- Part 2-2.Wire Train Bus (WTB) conformance test. The purpose is to specify the WTB conformance test method, requirements
and borders.
--- Part 2-3.TCN communication protocol. The purpose is to specify the communication protocol of the train communication network to ensure GB/T 28029.6
The defined Ethernet train backbone network interconnects each train set.
--- Part 2-4.TCN application protocol. The purpose is to specify the application protocol of the train communication network to achieve communication between application software
Communicate through the marshalling network defined in GB/T 28029.1 and the train backbone network defined in GB/T 28029.6.
--- Part 2-5.Ethernet Train Backbone (WLTB). The purpose is to specify the requirements for the Ethernet Train Backbone (ETB) to meet
An open train communication system based on Ethernet technology.
--- Part 2-6.Vehicle-ground communication. The purpose is to specify the communication specifications between the vehicle-mounted system and the ground system.
--- Part 2-7.Wireless Train Backbone (WLTB). The purpose is to specify the protocol of the wireless train backbone network based on radio
The protocol stack is suitable for distributed powered freight trains.
--- Part 2-8.Ethernet conformance testing. The purpose is to specify Ethernet conformance testing methods, requirements and boundaries.
--- Part 3-1.Multi-function vehicle bus (MVB). The purpose is to specify the technical requirements related to the multi-function vehicle bus (MVB).
--- Part 3-2.Multi-function vehicle bus (MVB) conformance test. The purpose is to specify all conformity tests that comply with GB/T 28029.9.
Multi-Function Vehicle Bus (MVB) conformance test requirements and methods for specified equipment and devices.
--- Part 3-3.CANopen Group Network (CCN). The purpose is to specify data communication within the group based on CANopen technology
bus.
--- Part 3-4.Ethernet Group Network (ECN). The purpose is to specify the intra-group data communication network based on Ethernet technology, and
Ethernet Cluster Network (ECN).
--- Part 4-1.Test methods for train communication networks based on wired train bus (WTB). The purpose is to specify
The overall requirements of the vehicle TCN network system based on the WTB bus and the technical requirements of the WTB network system are described.
Test method, specifies the test rules.
Rail Transit Electronic Equipment Train Communication Network (TCN)
Part 4-1.Wire Train Bus (WTB) based
Train communication network test method
1 Scope
This document specifies the general principles, test categories and items for post-installation tests of train communication networks based on the Wire Train Bus (WTB).
The corresponding test methods are described.
This document applies to all TCN network systems implemented according to GB/T 28029.2.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 17178.1 Information technology Open systems interconnection conformance test methods and framework Part 1.Basic concepts
GB/T 28029.1-2020 Rail transit electronic equipment Train communication network (TCN) Part 1.Basic structure
GB/T 28029.2-2020 Rail transit electronic equipment Train communication network (TCN) Part 2-1.Twisted wire train bus
(WTB)
GB/T 28029.3-2020 Rail transit electronic equipment Train communication network (TCN) Part 2-2.Twisted wire train bus
(WTB) Conformance Test
GB/T 34571-2024 Wiring rules for rail transit rolling stock
3 Terms and definitions
The terms and definitions defined in GB/T 17178.1, GB/T 28029.1-2020 and GB/T 28029.2-2020 and the following terms and definitions apply
This document.
3.1
valid frame correctframe
A frame containing the correct WTB preamble, a certain number of "0" and "1" bits, and a termination delimiter.
Note. For WTB preamble, see 4.8.1.3 of GB/T 28029.2-2020; for bit encoding, see 4.8.1.2 of GB/T 28029.2-2020; for WTB frame length, see
The length indicated in the link data length field is consistent with the length indicated in the link data length field. The FCS of the WTB frame refers to the frame check sequence calculation rules in 5.2.1 of GB/T 28029.2-2020.
For the termination delimiter, see 4.8.1.4 of GB/T 28029.2-2020.
3.2
Abnormal frame incorrectframe
WTB frame preamble error, WTB frame end delimiter error, WTB frame length error, WTB frame FCS error, or WTB master-slave error
Frame type mismatch.
Note. The WTB frame preamble code exception means that the WTB preamble code does not meet the requirements of 4.8.1.3 in GB/T 28029.2-2020; the WTB frame termination delimiter is abnormal
The WTB termination delimiter does not meet the requirements of 4.8.1.4 of GB/T 28029.2-2020; the WTB frame length is abnormal because the WTB frame length is different from the length of the link.
The length indicated in the data length field of the WTB frame does not match; the WTB frame FCS error is based on the frame checksum of 5.2.1 in GB/T 28029.2-2020.
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