Sewer Inspections Innovation
2025-04-24 03:27:35

Liberaware and CalTa Develop Innovative Solutions for Sewer Inspections Using Digital Twins and Drones

Innovative Solutions for Sewer Inspections



In a groundbreaking initiative, Liberaware and CalTa have teamed up to harness cutting-edge technology in sewer management. Selected for the Ministry of Land, Infrastructure, Transport and Tourism’s 2023 application research theme titled "Utilizing Data and Digital Technology in Sewers," this collaboration aims to improve inspection and maintenance processes in aging sewer systems.

Project Overview


The project, titled Development of Digital Twin and Small Drone DX Solutions for Sewer Pipe Inspections, focuses on addressing significant challenges faced in the maintenance of deteriorating sewer infrastructure. The teams at Liberaware and CalTa have identified several key issues through extensive collaborations with sewer professionals:

  • - Many inspection areas are confined spaces where human access or traditional camera equipment is challenging.
  • - The presence of toxic gases like hydrogen sulfide poses health risks to workers during inspections.
  • - Documentation of anomalies during inspections often lacks comprehensive data collection and long-term trend analysis.

To tackle these problems, the project will leverage Liberaware's advanced self-positioning and measurement technology in their drones, complemented by CalTa's scalable 3D digital twin framework. The goals include:

  • - Establishing a safe inspection method that eliminates the need for personnel to enter hazardous environments.
  • - Enhancing the quality of inspection results through high-accuracy positioning capabilities, even in non-GPS settings.
  • - Creating a unified system to manage 3D data, sensor information, and video recordings within a digital twin environment.
  • - Supporting planned maintenance through data comparison and analytical processes.

Call for Proposals Overview


The anticipated duration of this project is from the contract signing to March 16, 2026, with a maximum project budget of 26.8 million JPY.

For more details about the official announcement on the adoption of this project, please visit the Ministry of Land, Infrastructure, Transport and Tourism's website.

About Liberaware


Founded in 2016 and headquartered in Chiba City, Japan, Liberaware is dedicated to creating a safer society by focusing on inspections and measurements in challenging indoor environments deemed "narrow, dark, and dangerous." They specialize in developing some of the world's smallest drones for infrastructure inspection. Liberaware’s mission is to visualize hidden risks and maintain a secure environment for all. Their services range from drone-operated surveys and inspections to providing analytical solutions based on collected data.

  • - Company: Liberaware Co., Ltd.
  • - CEO: Min Hongkyu
  • - Location: 3-3-1 Chuo, Chiba City, Chiba
  • - Established: August 22, 2016
  • - Website: https://liberaware.co.jp/

About CalTa


Established in July 2021 and based in Tokyo, CalTa specializes in digital transformation and the acquisition of on-site imagery. Led by CEO Tohru Takatsu, the company is poised to make significant contributions to infrastructure digitalization and the improvement of operational efficiencies.

  • - Company: CalTa Co., Ltd.
  • - CEO: Tohru Takatsu
  • - Location: 18-10 Takanawa 2-chome, Minato City, Tokyo
  • - Website: https://calta.co.jp

With the collaboration of these two innovative companies, the future of sewer management is not only becoming safer and more efficient but also setting a precedent for how digital technology can revolutionize traditional industries.


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