Launch of 'Specific Sound Detection Edge AI System' Using AI Audio Analysis

Ecomott Co., Ltd. (Headquarters: Sapporo, Hokkaido; Representative Director Takuya Iriyama; hereinafter "Ecomott") and GRIFFY Inc. (Headquarters: Chiyoda-ku, Tokyo; Representative Director Takuya Iriyama; hereinafter "GRIFFY") announce the launch of a new solution for construction companies, the "Specific Sound Detection Edge AI System," starting September 2026. This solution leverages development and operational insights gained from the jointly developed "Specific Vehicle Detection System" with Toda Corporation (Headquarters: Chuo-ku, Tokyo; President & CEO Seisuke Ohtani; hereinafter "Toda Corporation").

This system applies the technology of PROLICA, GRIFFY's AI camera for productivity enhancement, to pre-train and analyze specific audio data collected by outdoor microphones, enabling on-site AI to detect target sounds in real time.

By using sound detection, the system can early identify the presence of approaching emergency vehicles—even in environments where buildings, curves, or other obstructions make it difficult to confirm visually or through image analysis using conventional AI cameras.

By integrating with various devices, the system automates construction vehicle dispatch control and alerts workers, contributing to improved safety at construction sites and surrounding roads.

<System Diagram>

Photo of actual installation

Development Background

Preventing contact accidents at construction vehicle entrances and exits is an extremely important challenge on construction sites. In particular, at sites adjacent to emergency hospitals or in areas with frequent emergency vehicle traffic, strict entry and exit management is required to ensure that departing construction vehicles do not obstruct their passage.

Traditionally, guides have visually confirmed approaching vehicles, but visibility is difficult to ensure at night, in bad weather, or in areas with poor sightlines. While AI cameras using image analysis have advanced identification capabilities, they, like visual observation, often fail to perform effectively under poor visibility or obstructed conditions.

Furthermore, conventional sensor technologies are limited to detecting passing vehicles and struggle to identify specific vehicles such as emergency vehicles.

To address these challenges, GRIFFY has advanced joint development with Toda Corporation to create services tailored to on-site needs, leading to the development of this system that identifies specific sounds through audio analysis.

Key Features of the System

High-precision detection using audio AI By constructing machine learning models tailored to the target sound sources, the system can accurately identify specific sounds even in real-world environments with ambient noise. Verification at Toda Corporation's construction sites, with improved identification algorithms, achieved a detection rate of 98%, demonstrating high reliability.

Safety management independent of visibility Since detection is based on sound, the system operates stably even in low-visibility conditions such as nighttime or bad weather. This enables simultaneous reduction of accident risks and labor savings, even in situations where visual observation or image analysis with AI cameras previously failed.

Real-time processing with edge AI Edge AI processing is performed on devices installed at the site, enabling immediate integration with equipment. Integration with patrol lights, LED displays, and gate controls enables automatic equipment control according to site conditions.

About Ecomott Co., Ltd.

Since its founding in 2007, Ecomott has operated as a dedicated IoT solutions provider, offering sensors and in-house developed communication devices, along with customized solutions and on-site installation expertise to enable sensing of all kinds of "things" and "events." The company listed on the Sapporo Securities Exchange Ambitious Market in June 2017 and on the Tokyo Stock Exchange Mothers in June 2018. In January 2019, it formed a capital and business alliance with KDDI Corporation.

Headquarters: 7F, Karesu Sapporo Building, 2-5-1 Kita 1-jo Higashi, Chuo-ku, Sapporo, Hokkaido 060-0031

Representative: Representative Director Takuya Iriyama

Founded: February 2007

Capital: 617.96 million yen (as of end of February 2026)

Business: Planning of IoT solutions and one-stop provision of related services including terminal manufacturing, communication infrastructure, application development, and operation and maintenance of cloud services

URL: https://www.ecomott.co.jp/

About GRIFFY Inc.

GRIFFY's mission is "To shape the future of the construction industry with digital technology." The company operates a co-creation business for DX products and solutions specialized in the construction domain, as well as a rental service business offering a range of construction DX solutions under the "Genba Lloyd" brand.

"Genba Lloyd" has accumulated over 20,000 installations (as of December 2025), and through the combination of on-site implementation expertise and digital-native thinking, GRIFFY aims to address common industry challenges such as productivity improvement, labor reduction, and safety measures, contributing to creating a work environment where everyone in the construction industry can thrive.

Headquarters: 7F, Uchikanda OS Building, 2-12-6 Uchikanda, Chiyoda-ku, Tokyo 101-0047

Representative: Representative Director Takuya Iriyama

Founded: December 2023

Capital: 60 million yen

Business: Provision of DX solutions for construction sites

URL: https://griffy.co.jp/