Solar String Installation via Laser Ranging and Crane

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Solution Overview

Problem

The construction of mega solar power plants is inefficient due to the need for extensive manual labor, long construction periods, and high costs, particularly in assembling and arranging solar strings at the power plant site, which poses safety risks and is affected by weather instability.

Innovation Solution

Assembling solar strings with integrated solar modules and pre-assembling wiring in a factory, using a dedicated heavy machine equipped with laser ranging for precise positioning and a crane system to efficiently transport and install solar strings at the site, reducing the need for extensive on-site labor and shortening the construction period.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If solar modules are assembled and installed manually at the power plant site, then worker flexibility and adaptability are maintained, but construction time increases, safety risks increase, and labor costs increase

Engineering Contradiction:
Improveworker safetyVSAvoidconstruction period
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

Solar strings are pre-assembled in a factory setting before being transported to the power plant site. This preliminary assembly action reduces on-site construction time and improves worker safety by minimizing the time workers spend handling modules at the installation site, while maintaining adaptability through standardized modular units

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A dedicated heavy machine with automated crane system replaces manual human labor for transporting and installing solar strings. The machine uses laser ranging for positioning and automated crane operations, significantly reducing construction time and eliminating safety risks associated with manual handling at the power plant site

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If a dedicated heavy machine with automated crane system is used for installation, then construction efficiency and safety are improved, but device complexity and initial cost increase

Engineering Contradiction:
Improveinstallation efficiencyVSAvoidmachine system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The dedicated heavy machine integrates multiple functions including laser ranging for measurement, positioning control system, and crane mechanism for lifting and installation into a single unified platform. This multi-functionality improves installation efficiency while managing device complexity through integration rather than separate systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The machine uses laser ranging to automatically measure and determine positions of stands, and the control system automatically processes this data to guide crane operations. This self-service capability reduces the need for manual measurement and positioning, improving productivity while the automated control manages system complexity

Inventive Principle:
Principle #25Self-service

3Loss of time

If solar strings are pre-assembled in a factory, then on-site construction time is reduced and safety is improved, but transportation logistics and coordination complexity increase

Engineering Contradiction:
Improveon-site construction timeVSAvoidlogistics coordination complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

Solar strings are pre-assembled in a factory with integrated wiring and mounting hardware before transportation. This preliminary preparation reduces on-site construction time significantly, as modules arrive ready-to-install. The standardized pre-assembly process manages logistics complexity through uniform specifications

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The solar power plant is divided into modular solar string units that are independently assembled and transported. This segmentation allows for efficient factory production and simplified on-site installation, while the modular nature manages transportation logistics through standardized units that can be handled by the dedicated heavy machine

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method significantly reduces the construction time and cost of mega solar power plants by allowing flexible handling of solar module selection and efficient cabling, while ensuring worker safety and stability through precise robotic installation.

Implementation Method 1

laser ranging means for measuring positions of the stands

Methodology Applied
Scientific EffectLaser ranging: LIDAR

Data Source

PatentUS9708139B2Solar power plant construction method
Publication Date: 2017.07.18 CLEAN ENERGY FACTORY CO LTD
  • US9708139B2 patent drawing
  • US9708139B2 patent drawing
  • US9708139B2 patent drawing

AI summary

A Solar power plant construction method includes a string formation step of arranging solar modules delivered to an assembly plant on support frames to form planar solar strings, a conveyance step of stacking the solar strings in a container and loading the container on a container truck to convey the container to a power plant site, and a solar string installation step of transferring the container delivered to the power plant site to a site machine and measuring distances and directions between a crane included in the site machine placed at a predetermined position of a stand array group for mounting solar array provided in the power plant site and stands to pull up the solar strings by the crane of the site machine to sequentially distribute the solar strings to respective stand positions measured in the stand position measurement step to form and fix a solar array.