Urban rail transit LTE-M network system and fault monitoring method
An urban rail transit, LTE-M technology, applied in the field of urban rail transit LTE-M network system and fault monitoring, can solve problems such as abnormal standing waves, low reliability, affecting vehicle entry and exit sections and main line operations, etc., to ensure fast Rodability, the effect of improving redundancy reliability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0049] like figure 2 As shown, the urban rail transit LTE-M network system in this embodiment includes an LTE network layer and a vehicle access layer. The LTE network layer includes A and B dual-core networks, base station equipment, and a combiner. The dual-core networks are respectively transmitted through the base station equipment. To the combiner, after combining, it is fed into the leaky cable beside the track. The vehicle access layer includes the TAU (vehicle wireless access unit) arranged on the train, which is used for data transmission between the train and the dual core network. The TAU carries data access services including subway train control, video surveillance (CCTV), and passenger information system (PIS). One TAU is connected to one core network, and the other TAU is connected to another core network. Data transmission is performed in parallel between two TAUs in each carriage and the dual core network.
[0050] This embodiment considers problems such as ...
Embodiment 2
[0072] like Figure 7 As shown, this embodiment is basically the same as Embodiment 1, the difference is that each TAU in the train is equipped with more than one backup TAU, and when the main TAU breaks down, the corresponding backup TAU can be switched to work for further Improve system redundancy reliability. Since the train is running, if the TAU breaks down, it is difficult to repair the TAU in time. In this embodiment, each TAU is equipped with a spare TAU, so that the standby TAU can be switched when the TAU fails, and the normal operation of the TAU can still be guaranteed.
[0073] In this embodiment, a redundant switching unit connected to the main TAU and the corresponding standby TAU is also included, and is used to control the switching control between the main TUA and the standby TAU, and the redundant switching unit can automatically control the main and standby TAU switch.
[0074] As shown in Embodiment 1, when a TAU single-point failure occurs, the faulty T...
Embodiment 3
[0077] like Figure 8 As shown, in this embodiment, on the basis of Embodiment 2, more than two BBUs are further set in the base station equipment of each cell, wherein one BBU is used as the main BBU, and the remaining BBUs are used as backup BBUs, so as to perform redundancy on the BBUs Backup, when a failure of a BBU is detected, the redundant backup BBU is switched to provide services to further improve the redundancy reliability of the system.
[0078] In this embodiment, the base station equipment of each cell is equipped with more than two RRUs corresponding to the dual network, one of the RRUs is used as the main RRU, and the remaining RRUs are used as backup RRUs to perform redundant backup of the RRUs. When a certain RRU is detected When an RRU fails, the redundant backup RRU is switched to provide services, so as to further improve the redundancy reliability of the system.
[0079] As shown in Embodiment 1, when an RRU single-point failure occurs, the faulty RRU ca...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com