It is the most advanced passenger information system developed by Huagi with China's independent intellectual property rights as per the unified technicalspecifications and codes of China Railway Corporation, realizing unified interface and interconnection. The system consists of train PA system, internal com-munication system, passenger emergency intercom system, passenger information display system, video entertainment system, CCTV system and pantographmonitoring system, providing passengers and operators with comprehensive information services and a comfortable travel experience.

Different PIS systems can be provided according to intercity railway requirements to meet the needs of passengers for short-distance urban bus type traveland commuting and provide services for tourists who want information about city sightseeing attractions. The system includes video technology, hanging andwall-mounted LCD playback terminals, high-definition monitoring, and digital PA. In addition to traditional multimedia entertainment, broadcasting and moni-toring services, it also provides interactive information queries, arrival reminders, and data analysis and information push services based on big data throughthe on-board WIFl system, enhancing passengers' travel experience by integrating modern urban transportation with advanced technology.

The information service system, which is first applied in China for normal-speed train, adopts the advanced and mature network, computer, WIFI, multimediaaudio and video technology, thus providing video entertainment programs for sleeper and dining compartments, enhancing the experience for passengers onlong-distance joumeys. Additionally, it offers video monitoring services for passenger compartments, capturing video from multiple angles to deter illegalactivities and ensure passenger safety. Furthermore, the sleeper compartments feature a separate lighting control system, allowing passengers to enjoypersonalized lighting at night.

This system is composed of the multimedia display, information display, digital broadcasting and CCTV subsystem. Designed based on the characteristics ofmetro trains, this system can work reliably in challenging environments, including vibrations, complex electromagnetic conditions, varied lighting, and highnoise levels. The system utilizes multimedia live broadcast packets, gigabit ring network transmission, constant pressure audio transmission, volumeclosed-loop detection and adjustment technology, and large-capacity video storage to solve the problems arising from multiple information interfaces,various noise sources, numerous data sources, and the need for high-bandwidth transmission. As a result, the system provides passengers with real-timevideo playback, news and event broadcasts, arrival reminders, and other services in a stable and dependable manner. It serves as a reliable companion forpassengers, enhancing their experience and offering a warm touch during their busy journeys.

The system is designed based on the characteristics of intracity train and indudes features such as multimedia playback, information display, digital PA andCCTV systems. It operates reliably in environments with vibrations, complex electromagnetic interference, and both elevated and underground settings. Thissystem utilizes multimedia live broadcast patch packet, gigabit ring network transmission, constant pressure audio transmission, automatic volume adjust-ment, and large-capacity video storage to support the needs of multiple information interfaces, various data sources, and large-bandwidth transmission. As aresult, the system can stably and reliably provide passengers with real-time location information broadcasts, video playback, news updates, event broadcast-ing, arrival reminders, and other services. It acts as a helpful companion during journeys, enhancing the travel experience with warm and attentive service.

Huaqi has been dlosely cooperating with OEMs. It has launched the supporting PIS solutions to suspended monorails, straddled monorails and maglev trains.The core processing circuit, hardware platform, and software platform are unified, allowing for rapid customization to meet the unique structural designs andinterface requirements of various models.

The PIS for small-capacity vehicles is built on a mature digital architecture. It retains the core functions essential to passenger information while streamliningredundant designs. By adopting standardized protocols and modules, the system enables rapid deployment of broadcasting, information display, and moni-toring functions. The system reserves numerous interfaces, allowing for customized displays and broadcasting services tailored to the needs of different vehi-cle models. This flexibility meets various operational scenarios effectively while controlling costs. It provides efficient and economical solutions that empowersmall-capacity vehidles, enhance the passenger travel experience, and improve operational management efficiency.

The On-boad Cloud Platform is a customized solution developed based on the unique advantages of cloud technology. It features an open architecture,efficient resource utilization, intelligent application support, rapid response startup, and a safe, robust design resistant to disruptions. This platform serves asthe foundation for key technologies in smart trains. Designed specifically for the unique operational scenarios of trains, it incorporates lightweight, low-power,and highly available edge cloud technology to create an integrated on-board business platform. This innovation breaks down the barriers of system indepen-dence, enabling intelligent and integrated business expansion. As a result, urban rail transit can achieve a seamless and intelligent extension from OCC tovehicle, ultimately ensuring full-scenario coverage of the urban rail cloud. The platform employs lightweight container clusters, disaster recovery technology,and a logical deconstruction of application systems to provide high-quality cloud services. This facilitates the clustering of on-boad applications and estab-lishes a standard for train operations on the cloud, supporting the intelligent development of application services.