With the rapid development of technology, smart travel has become a part of our lives. Ecall P1140, as a new generation of intelligent vehicle systems, is leading this change, bringing unprecedented convenience and safety to our driving experience.
1. Overview of Ecall P1140 vehicle emergency call system
Ecall P1140, also known as ITU-T P.1140, is a set of test methods and requirements for voice clarity and communication efficiency of vehicle emergency call systems proposed by the International Telecommunications Union (ITU). The system is designed to connect a Public Safety Answering Point (PSAP) to obtain assistance in the event of an accident or emergency by automatically or manually triggering an emergency call device. The emergency call system uses mobile phones and satellite positioning functions to transmit accident location, deployment type and vehicle information, greatly improving rescue speed and reducing casualties.
2. Features of Ecall P1140
1) Voice communication measurement technology: Provides voice communication measurement technology for vehicle emergency call systems to ensure effective communication between accident vehicles and rescue services.
2) Test methods: Contains test methods that meet the specific requirements for hands-free communication in the vehicle cabin.
3) Fully automatic test system: A fully automatic test system is adopted to implement the narrowband communication test specified by ITU-T P.1140, which can be used by manufacturers and suppliers in the automotive industry for testing and optimization of vehicle emergency call systems.
4) Standard value regulations: A series of standard values for emergency call testing are specified, such as loudness level, idle channel noise, terminal coupling loss (TCLw) and echo attenuation.
3.Main test items of ITU-T P.1140
These test projects ensure that the Ecall P1140 system can provide clear and effective communication in various environments to ensure that the vehicle can promptly establish contact with the Public Safety Answering Point (PSAP) in an emergency and transmit necessary incident information. Through these tests, the performance of the vehicle emergency call system can be comprehensively evaluated and optimized.
4. The importance of Ecall P1140
1）Improve rescue efficiency: improve rescue speed and reduce casualties by quickly and accurately transmitting accident information.
2）Comply with regulatory requirements: Help car manufacturers comply with national and regional laws, regulations related to electronic calling by agencies such as the European Union and the United Nations, and 2G/3G/4G wireless communication standards.
3）Improve vehicle safety: As one of the evaluation projects of automobile safety testing and rating agencies such as the European New Car Assessment Program (Euro NCAP), it affects customer purchase choices.
5. Application of Ecall P1140
1）Automatic analysis of vehicle emergency call systems: suitable for automatic analysis of built-in systems and after-sales kits.
2）Experimental development and optimization: used for experimental development and optimization of vehicle emergency call systems.
3）eCall/NG-eCall testing: With the gradual end of 2G/3G network support, new development and deployment of NG-eCall using 4G and 5G networks are in progress.
As an important standard for vehicle emergency call systems, Ecall P1140 not only improves road safety, but also provides automobile manufacturers with a complete set of testing and optimization solutions to ensure that rescue services can be effectively provided in emergencies.
Ecall P1140 is more than just an in-vehicle system, it is an evolving platform. With the continuous updating of technology, Ecall P1140 will bring more exciting new features, such as autonomous driving technology, virtual reality navigation, etc., making your driving experience full of infinite possibilities.
If you are interested in the details of ITU-T and want to learn more, please feel free to contact Zhongle Certification at any time. We will provide you with comprehensive and detailed consulting services to help you grasp the latest developments and key information of ITU-T.
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