Strings checking system

The PV power generation business, requiring long-term development and stable revenue,
is a business which reclaims investment and generates profit through long-term operation of more than 20 years.
Therefore, the ability of O&M company is as important as the stablishment of the power plant which requires stable driving and durability for a long time.

• Profit comparison table of 1MW level

• Contamination due to external exposure

• Module cleaning

Preventive maintenance

-Implementing preventive inspection of the part vulnerable
to problems of the power plant/p>

- Removing the risks of the power plant in advance

- Conducting state management and maintenance
of power generation facilities

- Capable of tracing inspection of micro cracks (unique in Korea)

System monitoring

- Inspecting the power plant
in real time through remote monitoring

- Analyzing and evaluating the generation data of the power generation system

- Pursuing profit sharing through additional generation amount
as well as guarantee of generation amount

- Pursuing profit sharing through additional generation amount
as well as guarantee of generation amount

Corrective maintenance

- Quickly removing and repairing the defects
of errors or failures

- Preventing recurrence by detecting and analyzing failure

- Inspecting the relevant part and reporting

Facility management

- Killing weeds within the area of the power plant

- Changing the angle of the flexible structure

- Cleaning module (optional)

- Conducting other electrical work

PV module cleaner machine

This is a robot system which can clean and diagnose the 1MW-level power plant (panel area: 6,000m2) within 8 hours,
and a set of this system is composed of the main robot and 4 cleaning robots.
It is a practical and highly economical robot which a private person or a maintenance company can use easily by dividing supply and labor

Platform and performance of PV module cleaner machine

• [Lightweight platform] Used as the power source for brush rotation and robot movement
  with the high-pressure water supplied from the main robot or water line

• - Minimizing damage of the panel as battery consumption has been minimized and the robot platform has become lighter
  by removal through a high-pressure water pump and a brush driving motor
  - Ensuring ease on user’s operation through lightweight cleaning/diagnosing robot

• [Module-typed platform] Cleaning module and diagnostic test module of 2-meter basic unit can respond
  to various panel sizes through structuring

• - Capable of responding to a PV panel exceeding 4 meters
  by additionally composing the vertical guide rail-type movement mechanism
  - Maximizing the usability of a single cleaning robot by modularizing the diagnostic test module as a detachable structure
  - Enhancing the cost-effectiveness of the robot by modularizing each function of the parts and utilizing common-used parts (battery pack et al)

• [Movement performance] Using the long-panel movement mechanism
  with a maximum angle of 45° and the length of 50m or longer

• - The Movement mechanism structure capable of recovering irregular panel arrays
  such as a gap and drop between panels and driving even at a panel angle of 45°
  - Capable of long panel movement of 50 meters or more with the hose reeling system of the robot itself

• [Advanced diagnosis and failure prediction system] Mounted with a reliable diagnosis and inspection technology using GPS,
  and visual and auditing sensors

• - Function of self localization using GPS sensor and encoder sensor
  - Precise diagnosis using a high-resolution imaging sensor and a high-sensitivity auditory sensor
  - Detailed detection of cleaning status and fault area through precise analysis of the AI (artificial intelligence) algorithm-based large data
  - Application of technology for history management and failure prediction of a diagnosed part through the time series analysis
  with the diagnosis data acquired in the past

Quick cleaning speed

- Capable of cleaning the panel array of 50 meters or longer at a speed of 720m2 per hour with the platform structure
of moving while cleaning the whole PV panel arrays at once
- Capable of operating continually without needing a separate stand-by time for water supplying or battery charging

High-quality cleaning ability

- Excellent performance in cleaning yellow dust, fine dust, bird’s droppings et al
with high-pressure water spray and control of contact force of the rotary brush

Flexible system response ability

- Capable of applying the robot platform to various panel widths such as 2, 4, 6, or 8 meters - Capable of system operation in a small-scale power plant or large-scale power generation complex of tens of MWs either
by operating just one unit of the cleaning/diagnosis robot
or simultaneously operating multiple sets of the robot group consisting with one main robot and up to 4 cleaning/diagnosis robots

Stability of system operation

- The system is supported by a roller attached to the platform at the upper and lower ends of the panel array and moves while working.
The risk of a panel surface damage or platform fall is removed as the system is not influenced by the panel installation angle or the weather such as rain, wind et al.

Differentiated diagnostic test performance

-Contaminants not removed, cell damage at the upper part of the panel, pattern break, micro crack, hot spot, cable break, and short circuit of a connector et al

*We precisely inspect and detect cell damage on the PV panel, micro crack, pattern break in the panel, micro hot spot et al through
the image processing of video images of up to 1mm resolution and thermal image of up to 2.5mm resolution, and we also precisely receive the sound wave
for a cable break through a microphone voice data analysis, thereby accurately diagnosing a cable or a connector break of more than 2-meter distance