Canonical page: [Tunnel Personnel Tracking & UWB Positioning](https://www.rpilink.com/solutions/tunnel/)

Website: Jinju Intelligence (Beijing) Technology Co., Ltd.

Language: English

Format: Markdown alternative generated from the public HTML main content.

---

[Solutions / Tunnel & Utility Corridor Positioning](https://www.rpilink.com/solutions/)

LINEAR SPACE POSITIONING

# Tunnel & Utility Corridor Positioning .

Keep location continuous along the work route.

Plan tunnel personnel tracking and asset location using one-dimensional chainage and section maps. Account for bends, branches and obstructions instead of applying a straight-line range claim to the entire tunnel.

[Discuss your solution](https://www.rpilink.com/contact/)

SOLUTION PROFILE

Positioning objective

One-dimensional chainage positioning

System components

Dual-channel stations + directional antennas + compatible terminals

Construction tunnels Utility corridors Metro sections

HOW IT WORKS

## From radio signals to usable location.

Dual-channel UWB stations and directional antennas observe corridor position, then map it to chainage and zones. The specification describes single-station 1D positioning; confirm ranging sequences and direction detection with compatible tags.

SYSTEM ARCHITECTURE CONCEPT · NOT LIVE DATA

01

### Survey the route

Record chainage, bends, branches and construction obstructions.

02

### Place stations

Install antennas, stations, PoE and backhaul.

03

### Calibrate sections

Validate location, handovers and coverage boundaries.

04

### Connect operations

Use chainage for personnel counts and zone-event applications.

### Fit linear spaces

Chainage and section identifiers suit construction and inspection workflows.

### Installation-ready hardware

JJ-U provides an IP67 cast-aluminum station with antennas and brackets.

### Central maintenance

PoE carries data and power; mini program or AC tools manage configuration.

DEPLOYMENT ESSENTIALS

## Check the deployment requirements.

01 JJ-U nominal ranging accuracy is 30cm and the 400m transmission figure assumes line of sight. Bends and vehicles may require additional coverage.

02 Single-station 1D support is not unrestricted 2D/3D positioning. Branches need suitable maps and deployment planning.

03 Match tag channels and protocols. Select equipment for hazardous areas using its actual certificates and project requirements.

RELATED HARDWARE

## Start with the right hardware

Related products are selection entry points. Confirm models, channels, protocols, firmware and acceptance criteria.

![Outdoor Dual-Channel UWB Station](https://www.rpilink.com/products/product-17/image1.jpeg)

Positioning Stations

JJ-U Dual Channel

### Outdoor Dual-Channel UWB Station

Maintain location awareness along tunnels.

1D positioning / IP67

[Open linked page](https://www.rpilink.com/products/product-17/)

![Multi-Mode Personnel Badge](https://www.rpilink.com/products/product-18/image1.png)

Personnel Devices

IR-T10A / B / C / D

### Multi-Mode Personnel Badge

One badge for location and field coordination.

IP67 / Multi-mode options

[Open linked page](https://www.rpilink.com/products/product-18/)

Technical reference: [Qorvo · UWB ranging fundamentals ↗](https://www.qorvo.com/resources/d/qorvo-getting-back-to-basics-with-ultra-wideband-uwb-white-paper) . Product capabilities remain subject to their specifications and selection validation.

LET’S BUILD YOUR POSITIONING SYSTEM

## Make location data work for your site.

Plan your site survey, hardware selection and platform integration with Jinju.

[zydc0915@gmail.com](mailto:zydc0915@gmail.com) [Discuss your requirements](https://www.rpilink.com/contact/)