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Similar standardsJT/T 883-2014: Commercial vehicle driving dangerous warning system technical requirements and test procedures---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JTT883-2014 TRANSPORT INDUSTRY STANDARD ICS 03.220.20; 35.240.60 R 86 Filing No.. Commercial vehicle driving dangerous warning system technical requirements and test procedures Issued on. APRIL 15, 2014 Implemented on. SEPTEMBER 01, 2014 Issued by. Ministry of Transport of PRC Table of ContentsForeword... 3 1 Scope... 4 2 Normative references... 4 3 Terms and definitions... 4 4 General requirements... 5 5 Functional requirements... 5 6 Performance requirements... 7 7 Installation and usage requirements... 7 8 Test methods... 8 Appendix A (Normative) Technical specifications and requirements for early warning systems)... 13ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by AND shall be under the jurisdiction of the National Road Transport Standardization Technical Committee (SAC/TC 521). Drafting organization of this standard. Highway Research Institute of Ministry of Transport. Participating drafting organizations of this standard. Tsinghua University State Key Laboratory of Automobile Safety and Energy Conservation, Technology Center of China FAW Co., Ltd., Dongguan Meibaoyu Automotive Intelligent Technology Co., Ltd. The main drafters of this standard. Liu Yingji, Cai Fengtian, Zhou Zhai, Yao Yu, Zhang Xueli, Liu Li, Li Keqiang, Li Hongjian, Guo Wenyi, Wang Jianqiang, Liu Bin, Zhu Ming, Le Ningsheng, Ding Jieyun. Commercial vehicle driving dangerous warning system technical requirements and test procedures1 ScopeThis standard specifies the general requirements, functional requirements, performance requirements, installation and use requirements, test methods, for the driving dangerous warning system of commercial vehicles (hereinafter referred to as the warning system). This standard is applicable to the dangerous warning system for commercial vehicles, which are equipped with the warning function of the front vehicle collision and the dangerous state of lane departure.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard. GB 5768.3-2009 Road traffic signs and markings - Part 3.Road traffic markings GB/T 26773-2011 Intelligent transport systems - Lane departure warning systems - Performance requirements and test procedures JT/T 794 GNSS system for operating vehicles - Technical specification for vehicle terminals ISO 15623.2002 Transport information and control systems - Forward vehicle collision warning systems - Performance requirements and test procedures IEC 60825-1 Safety of laser products - Part 1.Equipment classification and requirements3 Terms and definitionsThe terms and definitions as defined in JT/T 794, GB/T 26773-2011, ISO 15623.2002, as well as the following terms and definitions, apply to this document. 3.1 Commercial vehicle driving dangerous warning system A system, which automatically collects the speed, distance from the front vehicle, lane, other vehicle running status information, during the driving process of the commercial vehicle;4 General requirements4.1 Composition of early warning system The early warning system shall include a front vehicle collision warning module, a lane departure warning module, a data communication interface. The front vehicle collision warning module and the lane departure warning module shall transmit no less than the following information, to the on-board terminal of satellite positioning system, through the data communication interface, respectively. 4.2 Others The appearance, nameplate, text, graphics, signs, materials, enclosure protection of each module of the early warning system shall meet the requirements of JT/T 794.5 Functional requirements5.1 Self-check The early warning system shall be started, within 30 s after the vehicle is started; complete the self-check of all the main system sensors and components; clearly indicate the current working status of the early warning system, by signal lights or display screens. 5.2 Automatic calibration For a specific vehicle, the early warning system shall be able to automatically calibrate, to compensate for normal or predictable changes in vehicle load (e.g. empty/full fuel tank, trailer with/without bucket, loaded/unloaded, one or more occupants, etc.). 5.3 Front vehicle collision warning 5.3.1 The early warning system shall meet the requirements of Appendix A. 5.4 Lane departure warning 5.4.1 The function of the early warning system shall meet the requirements of Chapter 4 of GB/T 26773-2011. 5.4.2 The early warning system shall be able to detect the following lane lines, which meet the requirements of GB 5768.3-2009. 5.4.3 When driving under normal road conditions, the early warning system shall be able to detect lane lines, in lighting conditions such as in day, night, dusk, dawn. 5.4.4 When the driver has a tendency to change lanes or turn AND turn on the turn signal in the correct direction, the early warning system shall not issue a lane departure warning. 5.5 Others The early warning system shall provide the driver with a human-machine interface, including indicator lights related to the operating state of the system, alarm information of dangerous states in the form of sound/tactile/visualization, the operating/stop/fault state of the system. Indicator lights shall clearly show status in direct sunlight and at night.6 Performance requirements6.1 Overall performance The early warning system and firmware shall keep working independently and stably for 24 hours. They shall meet the following performance requirements. 6.2 Others The electrical performance, environmental adaptation performance, electromagnetic compatibility performance of the early warning system shall comply with the relevant requirements of JT/T 794.7 Installation and usage requirements7.1 The early warning system shall be installed, in accordance with the manufacturer's recommendations. It shall not affect the driver's sight. It shall not be installed on surfaces, which are prone to vibration. 7.2 The main components of the early warning system, such as controllers and sensors, shall be marked with the manufacturer's logo.8 Test methods8.1 Test conditions The test conditions are as follows. 8.2 Alarm test of front vehicle collision dangerous state 8.2.1 Test 1 8.2.1.3 Test procedure The test steps are as follows. 8.2.2 Test 2 8.2.2.1 Test method The subject vehicle approaches, at a constant speed, the front vehicle; the speed of the front vehicle is lower than that of the subject vehicle. The test process is as shown in Figure 2. 8.2.2.3 Test procedure The test steps are as follows. 8.3 Alarm test for lane departure dangerous state 8.3.1 Test rules Carry out test respectively on different lane types in 5.4.2.The test method is carried out, in accordance with the requirements of Chapter 5 of GB/T 26773-2011. 8.3.2 Reliability of lane departure alarm For repeatability tests conducted on straight lanes, the early warning system shall pass three tests out of a single set of four tests, AND pass 13 tests out of a total of 16 tests as required. JT/T 883-2014 TRANSPORT INDUSTRY STANDARD ICS 03.220.20; 35.240.60 R 86 Filing No.. Commercial vehicle driving dangerous warning system technical requirements and test procedures Issued on. APRIL 15, 2014 Implemented on. SEPTEMBER 01, 2014 Issued by. Ministry of Transport of PRCTable of ContentsForeword... 3 1 Scope... 4 2 Normative references... 4 3 Terms and definitions... 4 4 General requirements... 5 5 Functional requirements... 5 6 Performance requirements... 7 7 Installation and usage requirements... 7 8 Test methods... 8 Appendix A (Normative) Technical specifications and requirements for early warning systems)... 13ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by AND shall be under the jurisdiction of the National Road Transport Standardization Technical Committee (SAC/TC 521). Drafting organization of this standard. Highway Research Institute of Ministry of Transport. Participating drafting organizations of this standard. Tsinghua University State Key Laboratory of Automobile Safety and Energy Conservation, Technology Center of China FAW Co., Ltd., Dongguan Meibaoyu Automotive Intelligent Technology Co., Ltd. The main drafters of this standard. Liu Yingji, Cai Fengtian, Zhou Zhai, Yao Yu, Zhang Xueli, Liu Li, Li Keqiang, Li Hongjian, Guo Wenyi, Wang Jianqiang, Liu Bin, Zhu Ming, Le Ningsheng, Ding Jieyun. Commercial vehicle driving dangerous warning system technical requirements and test procedures1 ScopeThis standard specifies the general requirements, functional requirements, performance requirements, installation and use requirements, test methods, for the driving dangerous warning system of commercial vehicles (hereinafter referred to as the warning system). This standard is applicable to the dangerous warning system for commercial vehicles, which are equipped with the warning function of the front vehicle collision and the dangerous state of lane departure.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard. GB 5768.3-2009 Road traffic signs and markings - Part 3.Road traffic markings GB/T 26773-2011 Intelligent transport systems - Lane departure warning systems - Performance requirements and test procedures JT/T 794 GNSS system for operating vehicles - Technical specification for vehicle terminals ISO 15623.2002 Transport information and control systems - Forward vehicle collision warning systems - Performance requirements and test procedures IEC 60825-1 Safety of laser products - Part 1.Equipment classification and requirements3 Terms and definitionsThe terms and definitions as defined in JT/T 794, GB/T 26773-2011, ISO 15623.2002, as well as the following terms and definitions, apply to this document. 3.1 Commercial vehicle driving dangerous warning system A system, which automatically collects the speed, distance from the front vehicle, lane, other vehicle running status information, during the driving process of the commercial vehicle;4 General requirements4.1 Composition of early warning system The early warning system shall include a front vehicle collision warning module, a lane departure warning module, a data communication interface. The front vehicle collision warning module and the lane departure warning module shall transmit no less than the following information, to the on-board terminal of satellite positioning system, through the data communication interface, respectively. 4.2 Others The appearance, nameplate, text, graphics, signs, materials, enclosure protection of each module of the early warning system shall meet the requirements of JT/T 794.5 Functional requirements5.1 Self-check The early warning system shall be started, within 30 s after the vehicle is started; complete the self-check of all the main system sensors and components; clearly indicate the current working status of the early warning system, by signal lights or display screens. 5.2 Automatic calibration For a specific vehicle, the early warning system shall be able to automatically calibrate, to compensate for normal or predictable changes in vehicle load (e.g. empty/full fuel tank, trailer with/without bucket, loaded/unloaded, one or more occupants, etc.). 5.3 Front vehicle collision warning 5.3.1 The early warning system shall meet the requirements of Appendix A. 5.4 Lane departure warning 5.4.1 The function of the early warning system shall meet the requirements of Chapter 4 of GB/T 26773-2011. 5.4.2 The early warning system shall be able to detect the following lane lines, which meet the requirements of GB 5768.3-2009. 5.4.3 When driving under normal road conditions, the early warning system shall be able to detect lane lines, in lighting conditions such as in day, night, dusk, dawn. 5.4.4 When the driver has a tendency to change lanes or turn AND turn on the turn signal in the correct direction, the early warning system shall not issue a lane departure warning. 5.5 Others The early warning system shall provide the driver with a human-machine interface, including indicator lights related to the operating state of the system, alarm information of dangerous states in the form of sound/tactile/visualization, the operating/stop/fault state of the system. Indicator lights shall clearly show status in direct sunlight and at night.6 Performance requirements6.1 Overall performance The early warning system and firmware shall keep working independently and stably for 24 hours. They shall meet the following performance requirements. 6.2 Others The electrical performance, environmental adaptation performance, electromagnetic compatibility performance of the early warning system shall comply with the relevant requirements of JT/T 794.7 Installation and usage requirements7.1 The early warning system shall be installed, in accordance with the manufacturer's recommendations. It shall not affect the driver's sight. It shall not be installed on surfaces, which are prone to vibration. 7.2 The main components of the early warning system, such as controllers and sensors, shall be marked with the manufacturer's logo.8 Test methods8.1 Test conditions The test conditions are as follows. 8.2 Alarm test of front vehicle collision dangerous state 8.2.1 Test 1 8.2.1.3 Test procedure The test steps are as follows. 8.2.2 Test 2 8.2.2.1 Test method The subject vehicle approaches, at a constant speed, the front vehicle; the speed of the front vehicle is lower than that of the subject vehicle. The test process is as shown in Figure 2. 8.2.2.3 Test procedure The test steps are as follows. 8.3 Alarm test for lane departure dangerous state 8.3.1 Test rules Carry out test respectively on different lane types in 5.4.2.The test method is carried out, in accordance with the requirements of Chapter 5 of GB/T 26773-2011. 8.3.2 Reliability of lane departure alarm For repeatability tests conducted on straight lanes, the early warning system shall pass three tests out of a single set of four tests, AND pass 13 tests out of a total of 16 tests as required. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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