C&SLoading
C&S Co., Ltd.Daedeok Biz Center, Building AOpen inGoogleNaverKakao
C&SC&S Co., Ltd.

DIMS · Drone Infrastructure Management System

Where people cannot safely climb,the drone goes first

Autonomous drones and AI inspect infrastructure, and put every defect exactly where it is on a 3D digital twin.

  • 1BTIPS 2026
  • 1stPnP Silicon Valley IR
  • 8Patents · KR + PCT
D-24corrosion92%
  • ₩1BTIPS support
  • 6funded R&D programmes
  • 4+4patents registered / filed
  • 2022founded
D-23corrosion99%

Benchmark

Performance benchmark

Against manual labour on a standard 25-storey high-rise, 10,500 m².

ManualDIMS
Total cost₩26.8M₩7.5M−72%
Time100 h25 h
Crew51−80%
D-21crack88%

Inspection

One flight becomes one record

The drone draws its own path around the structure, AI examines every surface it captures, and each defect is written to its true coordinate on the 3D twin.

An autonomous flight path wrapping a tower while facade defects are marked
PLATE 01Smart City APT 201, Daejeon · 425 WP · 24 DEF

Detections24 findings · 58–99% confidence

  1. #24corrosion3.4 × 6.1 m92%
  2. #23corrosion3.3 × 4.9 m99%
  3. #21crack0.9 × 3.5 m88%
  4. #19corrosion1.4 × 2.9 m58%
  5. #16corrosion3.0 × 8.2 m91%

Real inspection data. Every defect is stored with its size, re-sighting count and confidence against a coordinate, so the next inspection compares the same place.

Daejeon · real flight record

D-24corrosion92%

News

Recent news

D-23corrosion99%

Operational excellence

Tailored for every sector

Manual work is slow, dangerous and inconsistent. Across four sectors we hold a precision human hands cannot.

Daejeon site · facade cleaning flight

Buildings & structures

High-rise maintenance

Automated facade cleaning and inspection for high-rises and complex structures — no one at height, and a consistent, streak-free result.

Precision cleaning
Touchless high-pressure washing
Visual inspection
AI-driven defect detection
Surface coating
Protective sealant application

Efficiency0Human risk

Real flight at a Hyundai E&C site → autonomous scan on the DIMS twin

Tower cranes

Construction site inspection

The drone scans mast, jib and connections autonomously and AI classifies what it finds. Under agreement with Hyundai E&C.

Structural scan
Full mast and jib capture
Bolts & welds
Close inspection of connections
Change over time
Re-inspection at the same coordinate

0Climbing crewHyundai E&CPartner

Close work on a turbine blade

Wind energy

Turbine optimisation

From de-icing winter blades to leading-edge protection coating — whole-cycle care aimed at annual energy production.

Blade washing
Salt, insects and oil film
Coating repair
Leading-edge protection
Internal inspection
Autonomous confined-space entry

−80%Downtime+3–5%AEP gain

Touchless washing on a PV array

Solar & renewables

PV farm efficiency

Autonomous cleaning for utility-scale solar. Recovers the efficiency lost to soiling without the abrasive brushes that damage anti-reflective coatings.

Panel washing
Pure water, no contact
Thermography
Hotspot and diode failure
Nano-coating
Anti-soiling layer

+15%Output−90%Water use

D-21crack88%

The case

Why automation is non-negotiable

Maintaining infrastructure by hand is dangerous, slow and legally exposed.

  • 3,358+

    Fatal safety risks

    Deaths from falls and accidents in the US, China and Korea, 2011–2020.

  • Prison

    Legal liability

    Under the Serious Accident Punishment Act, CEOs and owners face criminal liability.

  • ₩26.8M

    Soaring costs

    Average cost of cleaning a single 25-storey building by hand.

Safety first

Safety & risk assessment

01

Automated grading

AI analysis grades and classifies ageing infrastructure automatically.

Strategic partners

Who we work with

KAISTPOSCODJIHyundai E&CGSROK Army Signal SchoolDaejeon Metropolitan CityPlug and Play

Operational excellence

Automated O&M

01

Solar analysis

Thermal imaging detects panel soiling and defective modules.

Ecosystem

Research and industry network

Hanbat National UniversityDaejeon TechnoparkKOSMETurbine CrewEverySimZTTMGITJina ConstructionCox SpaceCity of Detroit
D-21crack88%

Intellectual property

4 granted, 3 filed, 1 PCT

  1. P-01Drone transport and charging system with an integrated drone stationGranted10-29996432026-08-20Drone transport and charging system with an integrated drone station
  2. P-02Building-facade cleaning system using dronesGranted10-29085792026-01-20
  3. P-03Solar-panel cleaning system pairing a cleaning robot with a transport droneGranted10-27075382024-09-11Solar-panel cleaning system pairing a cleaning robot with a transport drone
  4. P-04Solar-panel cleaning device for an environmentally sound washing methodGranted10-25100592023-03-09
  5. P-05Tower crane using dynamic work-zone analysis and multi-sensor fusionFiled10-2026-01324992026-07-20
  6. P-06PCT application — building-facade cleaning system using dronesPCTCJP4283PCT2025-08-12
  7. P-07Autonomous-flight drone system for facade cleaningFiled10-2025-00106892025-01-23
  8. P-08Unmanned-vehicle charging station with climate controlFiled10-2024-00356162024-03-14Unmanned-vehicle charging station with climate control

Company

Record

  1. 2026-08Selected for TIPS 2026, Regular Track R2 — ₩1B in total support
  2. 2026-08Patent granted — drone transport and charging system (10-2999643); portfolio now 4 granted, 4 pending
  3. 2026-07Tower-crane drone inspection agreement with Hyundai E&C
  4. 2026-07Patent filed — tower crane, dynamic work-zone analysis and multi-sensor fusion (10-2026-0132499)
  5. 2026-05Bomunsan forest-fire surveillance demonstration, Jung-gu Daejeon
  6. 2026-04Startup Leap Package, Deep Tech — DIMS v2.0 and AI recognition model v2.0
  7. 2026-04Regional Innovation Leading Enterprise R&D — SWIR LiDAR scan module (S3475443)
  8. 2026-04Daejeon Fire Agency — Bomunsan drone fire-watch contract
  9. 2026-02NSL Partners seed round
  10. 2026-01Technological exchange with President Lee, Korea–China Venture Summit
  11. 2025-06First place, Plug and Play Silicon Valley Summit
  12. 2025-05AI Data Voucher programme
  13. 2025-05MOU with Nantong High-Tech Zone, China
  14. 2025-04KOSME Global Young Entrepreneurs Academy
  15. 2025-03Chinese branch office established
  16. 2025-02J Ventures SEED Batch Program
  17. 2025-01KAIST drone-cleaning maintenance contract
  18. 2024-09KOSMES Startup Growth R&D
  19. 2024-08Technical contract, Zhongguo Lianxi Network Technology
  20. 2024-02Defense Innovation Cluster commercialisation project
  21. 2023-11Shenzhen High-Tech Startup Program
  22. 2023-10Venture Business certification
  23. 2023-05Company-affiliated research institute certified
  24. 2023-03Exllu Tower maintenance contracts, ₩400M
  25. 2023-0213th Class, Youth Startup Academy
  26. 2022-10MOU with a Chinese partner
  27. 2022-05C&S Co., Ltd. established

What we do

We build the platform and work the site

  • AI drone software

    The DIMS platform — autonomous flight-path optimisation, AI defect recognition, 3D digital twins.

  • Drone hardware

    VTOL and custom airframes, plus the wireless multi-drone charging station.

  • Drone cleaning

    Facade, window and solar-panel cleaning, using a high-pressure, auto-tilting head.

D-24corrosion92%

The rest of the business

The site work funds the platform

  • Drone & parts distribution

    Official FOXTECH dealer; authorised DJI drone and parts reseller.

  • Startup training

    Certification and equipment training, rental and purchase, business and marketing consulting.

  • Renewable energy

    Mobile and fixed solar generation systems.

D-23corrosion99%

Contact

Judge it by one flight

Tell us the structure and the site conditions, and we will come back with a flight plan for it and what the outputs would look like.

Company
C&S Co., Ltd.
CEO
Junghyun Ahn
Address
A-521, Daedeok Biz Center, 17 Techno 4-ro, Yuseong-gu, Daejeon (34013)
Email
cns@cns.ai.kr

Open the demo →Request console access →Send an email →

Head office

Built in Daejeon

Research, development and flight testing all happen in Daejeon. The Bomunsan fire-watch site and the Smart City apartment inspection are both within thirty minutes of the office.

Daedeok Biz Center, Building A

LAT
36.4324
LON
127.3950
Address
A-521, Daedeok Biz Center, 17 Techno 4-ro, Yuseong-gu, Daejeon
City
Daejeon, Republic of Korea

Daedeok Biz Center, Building A · 36.4324, 127.3950

Team

The people who build it

Junghyun Ahn

Junghyun Ahn

CEO & founder

Formerly DJI Global Enterprise, then CEO of a cleaning-robotics company, before founding C&S.

  • Faizan

    Faizan

    Lead engineer

    KAIST aerospace and computer science. Works on the computer-vision AI and the flight-control algorithms.

  • Jaehyun Kim

    Jaehyun Kim

    Data & robotics engineer

    Hanyang University electronics MSc. Robotics, mechanical and electronic systems, and AI engineering. Focuses on system data architecture and research support.

  • Changmo

    Changmo

    Technical director

    POSCO alumnus, PhD in architecture. Leads inspection-item design and process optimisation.

  • Haruna

    Haruna

    System architect

    KAIST aerospace MSc and PhD. Designs the drone control systems and the cloud platform architecture.

  • Heegeun Song

    Head of the corporate R&D institute

    Licensed architect with twenty years on construction sites and a long record of funded R&D. Heads the corporate research institute.

  • Haibo

    Haibo

    Head of global business

    International trade and partnerships. Runs overseas operations and export strategy.