The core advantage of Guoxin Longxin in mobile monitoring points stems from its technological accumulation and extension in wireless networking and lithium solar power supply systems. Industry customers can overcome environmental limitations such as lakes, roads and forests along railway lines to step into the “Internet +” era. As the infrastructure for IoT, 5G and intelligent systems in “New Infrastructure”, wireless metropolitan area networks and lithium solar power supply form a perfect combination.

III. Multi-scenario Wireless Networking Solutions

• Wireless Wide Area Network (WWAN): 4G/5G is mainly public network and WAN technology, suitable for internet access of 4G smart terminals such as mobile phones and temporary emergency access to the Internet.
• Wireless Local Area Network (WLAN): WiFi is a short-range wireless LAN solution, ideal for LAN access of smart terminals (mobile phones, PADs, laptops, etc.) and handheld terminals.
• Wireless Metropolitan Area Network (Private Network): The iMAX wireless MAN private network is designed for constructing high-reliability dedicated MAN networks in specific areas. It solves network interconnection for information points with inconvenient wiring, and supports dedicated network access for mobile nodes including vehicles, field personnel, portable mobile terminals and even unmanned aerial vehicles (UAVs).

1. Wireless Networking for HD Video Surveillance System Along Railway Lines

2. Train-Ground Wireless Broadband Communication System

The train-ground wireless broadband communication system enables trains to achieve high-speed real-time network interconnection with the remote smart control center during operation. It not only meets the requirements of data communication, but also supports the access of large-bandwidth service systems such as high-definition video, real-time voice, on-board WiFi and status detection.

Given the requirements for high-speed wireless roaming and network switching while maintaining link stability, only a specially designed wireless system can ensure reliable operation. The Guoxin Longxin iMAX-8000H mobile high-capacity multi-mode ad-hoc wireless access system is the optimal solution for this application.The diagram of typical application is as follows:

A series of iMAX private network base station (BS) systems are deployed at varying intervals along railway lines based on different terrain, coverage requirements and other conditions. Equipping the train with the Guoxin Longxin iMAX-8000H mobile high-capacity multi-mode MESH wireless access system enables high-speed, smooth and seamless roaming—a capability that many wireless communication manufacturers are unable to achieve.

3. Anti-interference, High-reliability and High-capacity Train-ground Wireless Communication System (Waveguide Wireless Private Network)

Deploying a pure air-interface wireless system along railway lines, especially subway lines, may be subject to interference from co-frequency radio systems under certain circumstances. For scenarios involving high-reliability train control and remote unmanned driving, prolonged communication interruptions are unacceptable, yet the mobility of trains dictates the exclusive use of wireless technology. The industry offers two primary solutions for reliable wireless communication under interference conditions: first, the leaky feeder cable solution; second, the waveguide communication solution. Leaky feeder cables are cost-effective but only support low-bandwidth narrowband communication due to technical limitations, while waveguides enable high-bandwidth real-time communication.

The Guoxin Longxin iMAX-8000W series waveguide dedicated mobile communication system is a customized product for this specific application scenario. It can be used in conjunction with leaky feeder cables or slotted waveguides to meet the demand for real-time, high-speed broadband communication between trains (especially subways, light rails and intercity trains) and the ground command center.

The topology diagram of iMAX-8000W waveguide communication for train-ground communication of moving trains (mainly for subway and light rail scenarios) is as follows:

The distribution of waveguide communication base stations, waveguide length, frequency planning and networking mode all pose technical challenges. The iMAX-8000W series products support multi-mode wireless connectivity, which is especially critical for wireless roaming. High bandwidth and seamless roaming for trains traveling at high speed stand as the biggest highlights of Guoxin Longxin’s solution.

4. Wireless Broadband Data Transcription System for Yard Vehicles

Train data represents core safety-related data (including on-board LKJ data, on-board TCMS data, on-board 6A system data, etc.), which is of great significance to train operation safety, yet it currently lacks adequate safety and efficiency guarantees. At present, large-volume train data transmission between train and ground is mostly achieved via manual USB flash drive copying and downloading. This method is not only highly inefficient, but frequent plugging and unplugging also easily causes interface malfunctions, leading to data download failures. There is an urgent need for a high-efficiency and low-cost solution for train data transcription.

The most cost-effective solution available is the yard WiFi coverage data transcription system, with its topology diagram shown below:

Guoxin Longxin’s outdoor specialized WiFi base station iSAP system supports dual-band simultaneous operation. The 2.4G WiFi coverage is applicable for LAN networking of various WiFi smart terminals (laptops, smartphones, PADs, handheld barcode scanners, etc.) and data systems, while the 5.8G WiFi can be exclusively used for low-capacity video monitoring and large data transcription.

5. Remote Monitoring and Command System for Daily Inspection and Emergency Repair

Railway maintenance and line patrol are undoubtedly vital to train operation safety, and manual patrol remains an indispensable method at present. Railway departments are generally exploring ways to leverage technological means to support manual inspection and gradually enhance the intelligence level of line patrol work.

Natural disasters, train operation safety accidents and other incidents along railway lines are inevitable, and the key lies in taking remedial measures to conduct emergency repair timely and efficiently. During the repair process, the ability of leaders and technical personnel at the command center to quickly grasp the on-site actual situation is crucial for scientific decision-making and efficient progress of repair work.

Both scenarios above require a set of remote monitoring and command systems for railway maintenance, inspection and emergency repair departments. Guoxin Longxin’s portable monitoring points, detachable monitoring points and line patrol individual systems are developed precisely to meet such demands. The application topology diagram is as follows:

Guoxin Longxin offers standardized designs for portable monitoring points, detachable monitoring points and line patrol individual systems, which can be modularly customized according to the actual operational requirements of railway users. Vehicle-mounted monitoring points and UAV airborne monitoring systems can also be deeply customized and matched in line with the conditions of users’ vehicles and UAVs.

6. Wireless Networking Solution for Railway Intelligent Barriers

Trains inevitably pass through numerous barriers, especially at large cargo distribution centers and port logistics hubs. Barrier management remains a critical aspect of railway operation safety, giving rise to the development of intelligent barrier management. Unlike ordinary parking lots or entrances/exits, railway barrier management is directly related to people’s lives and property safety. Manual management is not only inefficient but also susceptible to human factors, making the intelligentization of barriers an irresistible trend.

The so-called railway intelligent barriers are mainly realized through bidirectional measurement & control and bidirectional early warning between trains and barriers. It is essential to achieve the interconnection of multiple services such as data, voice and video between trains and barriers, which cannot be accomplished without Guoxin Longxin’s wireless communication systems.

The diagram of a typical application for railway smart barrier management is as follows:

7. Remote Monitoring System for Railway Construction Sites

Modern railway construction often involves the building of bridges and tunnels, and the precision and quality of track laying are also crucial. Technology is increasingly integrated into railway infrastructure projects.

In the process of railway infrastructure construction, achieving centralized remote monitoring and command has long been a challenge for construction owners and contractors, and the biggest hurdle to remote monitoring is high-bandwidth network connectivity. Guoxin Longxin’s iMAX wireless communication system can play a vital role in this application.

The diagram of centralized remote monitoring application for railway construction sites is as follows:

Guoxin Longxin’s solutions are reliable and flexible, fully meeting the requirements of railway infrastructure users for wide-area remote centralized monitoring.

For power supply difficulties encountered in nearly all the above application scenarios, lithium solar power supply systems can be adopted as a solution. Guoxin Longxin’s solar power supply system with lithium iron phosphate battery cells is safer, more reliable and longer-lasting, serving as a truly durable and practical off-grid IT solar power supply system.

The railway industry involves a wide variety of business applications, for which wireless networking and lithium solar power supply are indispensable enablers. Wireless communication networking requires customized design tailored to local conditions and based on users’ actual needs and objective circumstances. Guoxin Longxin boasts numerous technological innovations and solution applications, which are not elaborated in detail herein. For specific requirements, please consult the Guoxin Longxin Technical Center.