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๐Ÿ“ก QoS-Aware Autonomous Mobile Mesh Relay System

Self-healing Mobile Relay Robot for Infrastructure-less Disaster Communication

BATMAN-ADV ๋ฉ”์‹œ ๋„คํŠธ์›Œํ‚น๊ณผ ์—ฐ๊ฒฐ์„ฑ ์ธ์‹ ๋‚ด๋น„๊ฒŒ์ด์…˜์„ ์‚ฌ์šฉํ•˜์—ฌ NLOS ๋ฐ ์žฌ๋‚œ ํ™˜๊ฒฝ์—์„œ ๊ณ ์žฅ๋‚œ ํ†ต์‹  ๋งํฌ๋ฅผ ์ž์œจ์ ์œผ๋กœ ๋ณต๊ตฌํ•˜๋Š”
๋ชจ๋ฐ”์ผ ์ค‘๊ณ„ ๋กœ๋ด‡ ์‹œ์Šคํ…œ์ž…๋‹ˆ๋‹ค.

๐Ÿ”— Quick Links

ํ†ต์‹  ์Œ์˜ ์ง€์—ญ(NLOS) ๊ทน๋ณต์„ ์œ„ํ•œ ์ž์œจ ์ด๋™ํ˜• ๋ฉ”์‹œ ์ค‘๊ณ„ ์‹œ์Šคํ…œ

Intel Edge AI SW Academy 8th Gen - Team 4 Project > ๊ฐœ๋ฐœ ๊ธฐ๊ฐ„: 2025.11.21 ~ 2026.1.5


๐Ÿ“– ํ”„๋กœ์ ํŠธ ๊ฐœ์š” (Overview)

์žฌ๋‚œ ํ˜„์žฅ, ์ง€ํ•˜ ํ†ต๋กœ, ํ„ฐ๋„๊ณผ ๊ฐ™์€ ํ™˜๊ฒฝ์—์„œ๋Š” ๊ตฌ์กฐ ์ธ๋ ฅ์˜ ์ด๋™์— ๋”ฐ๋ผ
๊ธฐ์กด ํ†ต์‹  ์ธํ”„๋ผ(LTE/5G)๊ฐ€ ๊ธ‰๊ฒฉํžˆ ์•ฝํ™”๋˜๊ฑฐ๋‚˜ ์™„์ „ํžˆ ๋‹จ์ ˆ๋˜๋Š” ๋ฌธ์ œ๊ฐ€ ๋ฐ˜๋ณต์ ์œผ๋กœ ๋ฐœ์ƒํ•ฉ๋‹ˆ๋‹ค.
๊ณ ์ •ํ˜• ์ค‘๊ณ„๊ธฐ๋‚˜ ๋‹จ์ˆœ ์‹ ํ˜ธ ์ฆํญ ๋ฐฉ์‹์€ ์ด๋Ÿฌํ•œ ๋™์ ์ธ ํ™˜๊ฒฝ ๋ณ€ํ™”์— ํšจ๊ณผ์ ์œผ๋กœ ๋Œ€์‘ํ•˜๊ธฐ ์–ด๋ ต์Šต๋‹ˆ๋‹ค.

๋ณธ ํ”„๋กœ์ ํŠธ๋Š” ์ด๋Ÿฌํ•œ ํ•œ๊ณ„๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด,
ํ†ต์‹  ํ’ˆ์งˆ(TQ/RSSI)์„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ๋ถ„์„ํ•˜๊ณ  ์ค‘๊ณ„ ๋กœ๋ด‡์ด ์ง์ ‘ ์ด๋™ํ•˜์—ฌ
ํ†ต์‹  ๊ฒฝ๋กœ๋ฅผ ๋ฌผ๋ฆฌ์ ์œผ๋กœ ์žฌ๊ตฌ์„ฑํ•˜๋Š” ์ž์œจ ์ด๋™ํ˜• ๋ฉ”์‹œ ์ค‘๊ณ„ ์‹œ์Šคํ…œ
์„ ์ œ์•ˆํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ’ก ํ•ต์‹ฌ ๊ธฐ๋Šฅ (Key Features)

  • ๐Ÿ“ก ์ž๊ฐ€ ์น˜์œ  ๋„คํŠธ์›Œํฌ (Self-Healing Network): - BATMAN-ADV ๊ธฐ๋ฐ˜ Layer 2 ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ
  • ์ค‘์•™ AP, IP ์„ค์ •, NAT/DHCP ์—†์ด ๋…ธ๋“œ ์ž๋™ ํ•ฉ๋ฅ˜ ๋ฐ ๊ฒฝ๋กœ ๋ณต๊ตฌ
  • ๐Ÿค– ํ†ต์‹  ํ’ˆ์งˆ ๊ธฐ๋ฐ˜ ์ž์œจ ์ฃผํ–‰ (Connectivity-Aware Navigation): - Nav2/SLAM ๋ฏธ์‚ฌ์šฉ
  • ๋งํฌ ํ’ˆ์งˆ(TQ/RSSI)์„ ๋ชฉ์  ํ•จ์ˆ˜๋กœ ํ•˜๋Š” Gradient-based ์ด๋™ ์ œ์–ด
  • ์ง€๋„ ์—†์ด ํ†ต์‹  ํ’ˆ์งˆ์„ ์ง์ ‘ ์ตœ์ ํ™”
  • ๐Ÿงฑ NLOS(๋น„๊ฐ€์‹œ๊ถŒ) ๊ทน๋ณต: - ์ฝ”๋„ˆ, ์žฅ์• ๋ฌผ, ๊ฑฐ๋ฆฌ ์ฆ๊ฐ€๋กœ ์ธํ•œ ํ†ต์‹  ๋‹จ์ ˆ์„ ๋ฌผ๋ฆฌ์  ์ค‘๊ณ„๋กœ ํ•ด๊ฒฐ
  • ๐Ÿ–ฅ๏ธ ์‹ค์‹œ๊ฐ„ ๋ชจ๋‹ˆํ„ฐ๋ง GUI: - ๋„คํŠธ์›Œํฌ ํ† ํด๋กœ์ง€, TQ, ๋กœ๋ด‡ ์ƒํƒœ๋ฅผ ์ง๊ด€์ ์œผ๋กœ ์‹œ๊ฐํ™”

๐Ÿ‘ค ๋‚ด ์—ญํ•  ๋ฐ ๊ธฐ์—ฌ

์ด ํ”„๋กœ์ ํŠธ์—์„œ ์ €๋Š” ํ†ต์‹  ํ’ˆ์งˆ์„ ๊ธฐ๋ฐ˜์œผ๋กœ ์ค‘๊ณ„ ๋กœ๋ด‡์ด ์ด๋™ํ•˜๋„๋ก ํ•˜๋Š” ํ•ต์‹ฌ ๋กœ์ง์˜ ์„ค๊ณ„ ๋ฐ ๊ตฌํ˜„์„ ๋‹ด๋‹นํ–ˆ์Šต๋‹ˆ๋‹ค.

  • TQ/RSSI๋ฅผ ์ตœ์ ํ™” ๋ชฉํ‘œ๋กœ ์‚ฌ์šฉํ•˜๋Š” ์—ฐ๊ฒฐ ์ธ์‹ ๋‚ด๋น„๊ฒŒ์ด์…˜ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ์„ค๊ณ„ ๋ฐ ๊ตฌํ˜„
  • BATMAN-ADV ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ ๋ฉ”ํŠธ๋ฆญ์„ ROS 2 ์ œ์–ด ๋ฃจํ”„์— ์—ฐ๋™
  • SLAM ๋˜๋Š” Nav2์— ์˜์กดํ•˜์ง€ ์•Š๋Š” ์ž์œจ ๋ฆด๋ ˆ์ด ์žฌ๋ฐฐ์น˜ ๋กœ์ง ๊ฐœ๋ฐœ
  • RSSI/TQ ๋…ธ์ด์ฆˆ๋กœ ์ธํ•œ ๋ถˆ์•ˆ์ •ํ•œ ์›€์ง์ž„์„ ๋ถ„์„ํ•˜๊ณ  ์ œ์–ด ํŒŒ๋ผ๋ฏธํ„ฐ ์กฐ์ •
  • ๋ฆฌ๋ˆ…์Šค ๋„คํŠธ์›Œํ‚น๊ณผ ROS 2 ๊ธฐ๋ฐ˜ ๋กœ๋ด‡ ์ œ์–ด ๊ฐ„์˜ ์—ฐ๋™ ๋ฐ ์‹œ์Šคํ…œ ํ†ตํ•ฉ์— ๊ธฐ์—ฌ

๐Ÿง  ๋””์ž์ธ ๊ทผ๊ฑฐ(Design Rationale)

  • Why I Chose BATMAN-ADV?

    • ์ž๊ฐ€ ์น˜์œ  ๊ธฐ๋Šฅ์„ ๊ฐ–์ถ˜ L2 ๋ฉ”์‹œ ๋ผ์šฐํŒ…
    • ๋…ธ๋“œ ์ด๋™์„ฑ ๋ฐ ์ธํ”„๋ผ ์žฅ์• ์— ๊ฐ•์ธํ•จ
    • ์žฌ๋‚œ ๋ฐ ์ž„์‹œ ๋„คํŠธ์›Œํฌ์— ์ ํ•ฉ
  • Why I Used Gradient-based Navigation Instead of Nav2/SLAM?

    • ์œ„์น˜ ์ •ํ™•์„ฑ์ด ์•„๋‹Œ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜ ํ’ˆ์งˆ์ด ์ฃผ์š” ๋ชฉํ‘œ
    • ์‚ฌ์ „ ์ง€๋„๋‚˜ ์œ„์น˜ ํ™•์ธ์ด ํ•„์š” ์—†์Œ
    • ๋ถˆ์•ˆ์ •ํ•œ ํ™˜๊ฒฝ์— ์ ํ•ฉํ•œ ๊ฐ€๋ณ๊ณ  ๋ฐ˜์‘ํ˜• ์ œ์–ด

๐Ÿ“ธ Qt Dashboard Screenshot

Qt Dashboard

Qt ๊ธฐ๋ฐ˜ ๊ด€์ œ ๋Œ€์‹œ๋ณด๋“œ โ€“ ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ(TQ) ๋ฐ ์‹œ์Šคํ…œ ๋™์ž‘์„ ์‹ค์‹œ๊ฐ„ ์‹œ๊ฐํ™”


๐Ÿ› ๏ธ ์‹œ์Šคํ…œ ์•„ํ‚คํ…์ฒ˜ (System Architecture)

๋ณธ ์‹œ์Šคํ…œ์€ ROS 2๋ฅผ ๋ฏธ๋“ค์›จ์–ด๋กœ ์‚ฌ์šฉํ•˜๋ฉฐ, Batman-adv ์ปค๋„ ๋ชจ๋“ˆ์„ ํ†ตํ•ด ํˆฌ๋ช…ํ•œ(Transparent) ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ๋ฅผ ํ˜•์„ฑํ•ฉ๋‹ˆ๋‹ค.

flowchart LR
    A["Command Center<br/>(Qt Dashboard)"] <-->|Batman-adv Mesh| B("Relay Robot<br/>TurtleBot3")
    B <-->|Batman-adv Mesh| C["Explorer Client<br/>Camera/Sensor"]
    
    subgraph "Relay Robot Logic"
    B1[TQ Analyzer] --> B2[Connectivity Gradient Navigation]
    B2 --> B3[Motor Control]
    end

Loading

๐Ÿ“‚ ๋””๋ ‰ํ† ๋ฆฌ ๊ตฌ์กฐ (Directory Structure)

Intel-4th-Project
โ”œโ”€โ”€ ๐Ÿ“‚ comm_pkg                   # Batman-adv ๋ฐ ๋„คํŠธ์›Œํฌ ์ƒํƒœ ๋ชจ๋‹ˆํ„ฐ๋ง ๋ชจ๋“ˆ (Non-ROS)
โ””โ”€โ”€ ๐Ÿ“‚ ros2_turtlebot_createdpkg  # ROS 2 ํ•ต์‹ฌ ํŒจํ‚ค์ง€
    โ”œโ”€โ”€ ๐Ÿ“‚ relay_bot_pkg          # [Core] ํ†ต์‹  ํ’ˆ์งˆ ๊ธฐ๋ฐ˜ ์ž์œจ ์ฃผํ–‰ ๋…ธ๋“œ (Nav2 ๋ฏธ์‚ฌ์šฉ, ์ž์ฒด ์•Œ๊ณ ๋ฆฌ์ฆ˜)
    โ””โ”€โ”€ ๐Ÿ“‚ robot_Qt               # [GUI] ๊ด€์ œ ์„ผํ„ฐ์šฉ Qt ๋Œ€์‹œ๋ณด๋“œ ์–ดํ”Œ๋ฆฌ์ผ€์ด์…˜


๐ŸŽฅ ์‹œ์—ฐ ์‹œ๋‚˜๋ฆฌ์˜ค (Demonstration)

1. ์ฝ”๋„ˆ(Corner) ๊ทน๋ณต ์‹œ๋‚˜๋ฆฌ์˜ค

Without Relay

  • ํƒ์‚ฌ ๋กœ๋ด‡์ด ์ฝ”๋„ˆ๋ฅผ ๋Œ์•„๊ฐ€๋ฉด ํ†ต์‹  ๋งํฌ๊ฐ€ ๊ธ‰๊ฒฉํžˆ ์•ฝํ™”๋˜๊ฑฐ๋‚˜ ์™„์ „ํžˆ ๋‹จ์ ˆ๋จ

With Mobile Relay

  • ํ†ต์‹  ํ’ˆ์งˆ(TQ) ์ €ํ•˜๋ฅผ ๊ฐ์ง€ํ•œ ์ค‘๊ณ„ ๋กœ๋ด‡์ด ์ฝ”๋„ˆ ์ž…๊ตฌ๋กœ ์ด๋™
  • ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ๊ฐ€ ์žฌ๊ตฌ์„ฑ๋˜๋ฉฐ ์˜์ƒ ์ŠคํŠธ๋ฆผ ์œ ์ง€

2. ๊ฑฐ๋ฆฌ ์—ฐ์žฅ(Line Extension) ์‹œ๋‚˜๋ฆฌ์˜ค

Without Relay

  • ํƒ์‚ฌ ๊ฑฐ๋ฆฌ๊ฐ€ ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ํ†ต์‹  ํ’ˆ์งˆ์ด ์ž„๊ณ„์น˜ ์ดํ•˜๋กœ ํ•˜๋ฝ
  • ์˜์ƒ ํ”„๋ ˆ์ž„ ๋“œ๋กญ ๋ฐ ์—ฐ๊ฒฐ ๋ถˆ์•ˆ์ • ๋ฐœ์ƒ

With Mobile Relay

  • ์ค‘๊ณ„ ๋กœ๋ด‡์ด ์ „์ง„ํ•˜์—ฌ ์ตœ์  ์ค‘๊ณ„ ์œ„์น˜ ํ™•๋ณด
  • ํ†ต์‹  ๊ฐ€๋Šฅ ๊ฑฐ๋ฆฌ ๋ฐ ๋งํฌ ์•ˆ์ •์„ฑ ํ™•์žฅ

๐ŸŽฅ Demo Videos

NLOS Recovery Demo

Without Relay

Normal

With Mobile Relay

Extension Demo

โœ… Results (Impact)

  • TQ/RSSI๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๋ฆด๋ ˆ์ด ๋กœ๋ด‡์„ ์žฌ๋ฐฐ์น˜ํ•˜์—ฌ NLOS ์ฝ”๋„ˆ ์‹œ๋‚˜๋ฆฌ์˜ค์—์„œ ๋งํฌ ๋ณต๊ตฌ๋ฅผ ์‹œ์—ฐํ–ˆ์Šต๋‹ˆ๋‹ค.
  • ์ง์ ‘ ํ†ต์‹ (์ค‘๊ณ„ ์—†์ด)์— ๋น„ํ•ด ์•ˆ์ •์ ์ธ ๋น„๋””์˜ค ์ŠคํŠธ๋ฆฌ๋ฐ์„ ์œ ์ง€ํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ“ท Experimental Setup (Mobile Relay Robot)

์œ„ ๋ฐ๋ชจ๋Š” ์‹ค์ œ ๋ณต๋„/์ฝ”๋„ˆ ํ™˜๊ฒฝ์—์„œ ์ดฌ์˜ํ–ˆ์œผ๋ฉฐ, ์•„๋ž˜๋Š” ์‹คํ—˜์— ์‚ฌ์šฉํ•œ TurtleBot3 ๊ธฐ๋ฐ˜ ์ค‘๊ณ„ ๋กœ๋ด‡ ๊ตฌ์„ฑ์ž…๋‹ˆ๋‹ค.

Relay Robot

TurtleBot3 ๊ธฐ๋ฐ˜ ์ด๋™ํ˜• ๋ฉ”์‹œ ์ค‘๊ณ„ ๋กœ๋ด‡ ์‹คํ—˜ ๊ตฌ์„ฑ
BATMAN-ADV ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ๋ฅผ ํ†ตํ•ด ๋ฌผ๋ฆฌ์ ์œผ๋กœ ํ†ต์‹  ๊ฒฝ๋กœ๋ฅผ ์žฌ๊ตฌ์„ฑ

๐Ÿš€ ์„ค์น˜ ๋ฐ ์‹คํ–‰ (Installation & Usage)

์‚ฌ์ „ ์š”๊ตฌ ์‚ฌํ•ญ (Prerequisites)

  • Hardware: TurtleBot3 (Burger/Waffle), Raspberry Pi 4, USB Wi-Fi Dongle (Mesh mode ์ง€์›)
  • OS: Ubuntu 22.04 LTS (Jammy Jellyfish)
  • ROS 2: Humble Hawksbill

๋นŒ๋“œ ๋ฐ ์‹คํ–‰

# 1. ์›Œํฌ์ŠคํŽ˜์ด์Šค ์ด๋™ ๋ฐ ํด๋ก 
cd ~/turtlebot3_ws/src/
git clone https://github.com/mmc47047/Relay_Bot.git

# 2. ์˜์กด์„ฑ ์„ค์น˜ ๋ฐ ๋นŒ๋“œ
cd ~/turtlebot3_ws
colcon build --symlink-install
source install/local_setup.bash

# 3. Batman-adv ์„ค์ • (๊ฐ ๋…ธ๋“œ์—์„œ ์‹คํ–‰)
sudo bash comm_pkg/scripts/setup_batman.sh

# 4. ์ค‘๊ณ„ ๋กœ๋ด‡ ๋…ธ๋“œ ์‹คํ–‰
ros2 launch relay_bot_pkg relay_system.launch.py

# 5. Qt GUI ์‹คํ–‰ (PC)
ros2 run robot_Qt gui_dashboard

โœ… Verification (Expected Status)

Mesh interface

bash
ip -4 addr show bat0
sudo batctl o

ROS 2 topics

ros2 topic list | grep -E "tq|rssi|cmd_vel"
ros2 topic echo /cmd_vel

Expected behavior

  • TQ/RSSI๊ฐ€ ๊ฐ์†Œํ•˜๋ฉด ์ค‘๊ณ„ ๋กœ๋ด‡์ด ์ด๋™์„ ์‹œ์ž‘ํ•จ

  • ์ค‘๊ณ„ ๋กœ๋ด‡์ด ์œ„์น˜๋ฅผ ์žก์œผ๋ฉด TQ๊ฐ€ ํšŒ๋ณต๋˜๊ณ  ํ†ต์‹ ์ด ์•ˆ์ •ํ™”๋จ


โš ๏ธ ์ œํ•œ ์‚ฌํ•ญ ๋ฐ ํ–ฅํ›„ ์ž‘์—…

  • RSSI/TQ ๋ณ€๋™์œผ๋กœ ์ธํ•ด ๋ฆด๋ ˆ์ด ์›€์ง์ž„์— ๊ตญ๋ถ€์ ์ธ ์ง„๋™์ด ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
  • ๋‹จ์ผ ๋ฆด๋ ˆ์ด ์‹œ๋‚˜๋ฆฌ์˜ค; ๋‹ค์ค‘ ๋ฆด๋ ˆ์ด ์กฐ์ •์€ ํ–ฅํ›„ ์ž‘์—…์ž…๋‹ˆ๋‹ค
  • ์žฅ์• ๋ฌผ ์ธ์‹ ๋‚ด๋น„๊ฒŒ์ด์…˜์€ ๋” ๋ณต์žกํ•œ ํ™˜๊ฒฝ์— ํ†ตํ•ฉ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค

๐Ÿง  What I Learned

  • ๋ฐฐํŠธ๋งจ-ADV๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ ˆ์ด์–ด 2 ๋ฉ”์‹œ ๋„คํŠธ์›Œํฌ๋ฅผ ๊ตฌํ˜„ํ•˜๊ณ  ๊ธฐ์กด IP ๋ผ์šฐํŒ…๊ณผ์˜ ์ฐจ์ด์ ์„ ์ดํ•ด
  • SLAM์ด๋‚˜ Nav2์— ์˜์กดํ•˜์ง€ ์•Š๊ณ  ์—ฐ๊ฒฐ์„ฑ์„ ์ธ์‹ํ•˜๋Š” ๋‚ด๋น„๊ฒŒ์ด์…˜ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ์„ค๊ณ„
  • ์‹ค์ œ ํ™˜๊ฒฝ์—์„œ RSSI/TQ ๋…ธ์ด์ฆˆ์™€ ๋ฐ˜์‘ ์ œ์–ด์˜ ์‹ค์šฉ์ ์ธ ๋„์ „ ๊ณผ์ œ ํ•™์Šต
  • ROS 2, ๋ฆฌ๋ˆ…์Šค ๋„คํŠธ์›Œํ‚น ๋ฐ ์ž„๋ฒ ๋””๋“œ ์‹œ์Šคํ…œ์„ ๋‹จ์ผ ์ž์œจ ์‹œ์Šคํ…œ์— ํ†ตํ•ฉ

๐Ÿ‘ฅ ๊ฐœ๋ฐœํŒ€ ์†Œ๊ฐœ (Team Members)

์—ญํ•  ์ด๋ฆ„ ๋‹ด๋‹น ์—…๋ฌด GitHub
ํŒ€์žฅ ๊น€์„ฑ์ค€ ํ”„๋กœ์ ํŠธ ์ด๊ด„, ROS2 ์ž์œจ ์ฃผํ–‰ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ @seolihan651jw
ํŒ€์› ๊น€์˜๊ต Batman-adv Mesh ๋„คํŠธ์›Œํฌ ๊ตฌ์ถ• ๋ฐ ์ปค๋„ ๋ชจ๋“ˆ ์ตœ์ ํ™” @mmc47047
ํŒ€์› ์œค์ฐฌ๋ฏผ Qt GUI ๋Œ€์‹œ๋ณด๋“œ ๊ฐœ๋ฐœ, ์‹œ์Šคํ…œ ํ†ตํ•ฉ ํ…Œ์ŠคํŠธ @CMYMC
ํŒ€์› ์ •์ฐฌ์˜ ROS2 ์„ผ์„œ ๋ฐ์ดํ„ฐ ์ฒ˜๋ฆฌ ๋ฐ ํ•˜๋“œ์›จ์–ด ์ œ์–ด @salnock

๐Ÿ“œ License

This project is licensed under the MIT License - see the LICENSE file for details.

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Autonomous mobile mesh relay robot using ROS 2 + BATMAN-ADV for NLOS/disaster communication.

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