Utility Tunnel Monitoring Solutions

Solution Overview

Industrial Ethernet monitoring backbone for urban underground utility tunnels

MRD for Urban and Land Integrated Pipeline Corridors provides a complete monitoring system solution based on Industrial Ethernet. We deeply understand the core requirements of pipe gallery scenarios for high can reliability, harsh environmental adaptability, and multi-system integration, and adopt the mature architecture of "Industrial Ethernet + PLC" for pipe gallery environmental monitoring, video monitoring, security, fire protection, ventilation and drainage, power monitoring, etc. The subsystem provides unity and can be carried by the network.

Industry Challenges

MRD delivers a complete industrial Ethernet-based monitoring solution for urban utility tunnels. With a deep understanding of the core requirements in tunnel

Poor environment
The pipe gallery is damp, salt spray, mold, and the temperature changes significantly, making it difficult for ordinary equipment to operate stably for a long time.
Multi-System Convergence
When carrying low-speed data acquisition (sensors, PLC) and high-definition video transmission (IPC, NVR), the interface and bandwidth requirements vary greatly.
High can rely on requirements
The backbone network needs to adopt fiber self-healing ring network (< 50ms), and key lines also need to select HSR/PRP zero-loss redundant.
Operation and maintenance is difficult
The ground closed space patrol is this high, requiring power down alarm, remote status monitoring and unified network management capability.

MRD Solution Matrix

Mature "Industrial Ethernet + PLC" architecture; dual-system convergence for low-speed acquisition and HD video.

1. MRD™ Meridian ® Integrated Corridor Monitoring System Scheme

1.1 Technology Evolution and Program Positioning

The integrated pipe gallery monitoring system has experienced the development from industrial network bus to industrial Ethernet, and the adoption of optical fiber self-healing ring network in the backbone network has become an industry trend.

The MRD solution adopts the "Industrial Ethernet + PLC" mature architecture and is the mainstream application solution for integrated pipe gallery monitoring systems.

1.2 Dual System Converged Architecture

Comprehensive pipe gallery data monitoring system topology diagram

Type of business	TECHNICAL FEATURES	MRD™ Meridian ® Protocol
Low-speed data monitoring	Data acquisition terminal for main, a large number of sensors, PLC	The end adopts PLC + with serial port communication function Industrial Ethernet Switch
HD video surveillance	HD Video Capture + Distributed Video Storage	HD IPC on the end, distributed NVR storage on site, monitoring cardiac calls

1.3 Environmentally Adaptive Design

Comprehensive pipe gallery environment is relatively harsh, stored in moisture, salt spray, mold, temperature changes, etc. Disadvantages. MRD network equipment includes:

High MTBF and high Lifetime: ensures the overall stability of the system
Three-proof process treatment: smoke-proof, moisture-proof, mildew-proof

2. Industrial Ethernet Switch product matrix

2.1 Terminal Access Layer: TCC4100 Industrial Ring Switch

TCC4100 Access to Industrial Ring Switch

Positioning: The equipment at the end of the gallery cabin is connected directly to the sensor, PLC, camera, etc.

characteristic	Technical indicators	for Customer Value
Swap Function	Layer-3 switching (can option)	Effectively stop network storms and isolate broadcast domains
Port Configuration	Supports 4 Gigabit/Fast EthernetSFP + 8 Gigabitcopper port + 4 serial ports	Easy achieves access to various terminal devices (Ethernet + serial port)
I/O Interface	Supports 4 DI and 4 DO	can achieves remote restart terminal equipment and cabinet door opening anti-theft when alarm
controllo ambientale	Supports 1 temperature and humidity sensor interface	On-demand access to sensors, achieves ambient monitoring

2.2 Aggregation layer: TNM4000 modular core industrial switch

TNM4000 Modular Core Industrial Switch

Positioning: Pipeline equipment pool/zoning sink node.

characteristic	Technical indicators	for Customer Value
High backplane bandwidth	Should be for large flow subsystems	Same as when carrying data surveillance and video surveillance traffic
fanless design	IP40Protection rating	High can relies on uninterrupted operation to adapt to the semi-enclosed environment of the pipe gallery
High-density ports	Up to can configured with 8 10g ports + 64 Gigabit ports	from Face for High Density Access
Modular slot	7 can hot-swappable business slots	Meet on-demand configuration and elastic scaling

can select model:TNM4000 M12 Industrial Ethernet Switch (needle for extreme vibration environment)

Layer-3 switching function effectively protects against network storms
High-can rely on three preventive treatments: smoke-proof, moisture-proof, and mildew-proof
M12 High can reliable strong interface, anti-vibration
Self-healing ring network < 50ms, support MRD-Ring

2.3 Core layer: TNM6000 modular core industrial switch

TNM6000 modular core industrial switch

Positioning: monitoring the heart/total control heart core convergence.

characteristic	Technical indicators	for Customer Value
High backplane bandwidth	High Flow Subsystems	Carry the full pipeline gallery to monitor the flow
Multifunctional business module	Support Level 3 Security + HSR/PRP	can integrates security protection and zero packet loss redundant
High-density ports	Maximum can support 8 10g ports + 80 Gigabit ports	from Face for High Density Access
Modular slot	4 can hot-swappable business slots	Meet on-demand configuration and elastic scaling

3. Generation industrial redundant network (HSR/PRP)

for comprehensive pipe gallery projects with extreme requirements for reliability (such as key demonstration projects, and subway joint construction sections), MRD provides a zero-loss redundant solution based on IEC62439-3-5 and IEC62439-3-4standard HSR/PRP.

Background: HSR (High-availability Seamless Redundancy) networks were defined and regulated by the IEC organization passes IEC62439-3-5 in 2012. HSR protocol for public and standard redundant protocol.

3.1 HSR: zero packet loss, zero handoff

Mechanism: Dual sending and receiving - data packets are sent in both directions of the ring, the receiving end selects the first to reach the packet, and discards after to the secondary this

Performance: Failure when there is no packet loss, switch between when for 0 ms

3.2 PRP: dual network hardware level and line redundant

Mechanism: DANP (node supporting PRP protocol) and A network and B network are connected separately

Key Features: DANP in A/B network has the same IP and MAC address, same as when sending the same packet to A/B network

Performance: Any one of the A/B networks completely fails, with zero impact on business

3.3 HSR + PRP hybrid networking

The HSR and PRP protocol is the same as when used, and the can destination software function achieves A-network and B-network switching in the hardware layer achieves

Suitable for backbone ring network using HSR, access layer using PRP hybrid architecture