JUN-TECHNO-SERVICE Co., Ltd. List of Products and Services

We would like to introduce the underwater survey using the "fish finder" handled by Jun Techno Service Co., Ltd. Originally developed for recreational fishing, this product's high performance and compact lightweight design make it suitable for underwater surveys mounted on small boats such as rubber boats. It can be operated simultaneously with underwater drones and can acquire depth data using sonar. 【Features】 - Visualization of underwater conditions using side and down scan sonar - Confirmation of the position of objects - Verification of the general shape and sediment conditions - Monitoring conditions during underwater drone operations - Acquisition of point cloud data - Creation of contour maps and soft/hard sediment maps, simple volume calculations *For more details, please refer to the PDF document or feel free to contact us.

• Monitoring and Control Equipment

The "Underwater Drone Safe Submersible Operator Certification Course" is an underwater drone school certified by the Japan Underwater Drone Association. We offer training sessions and programs for obtaining qualifications aimed at developing human resources for expanding underwater businesses utilizing underwater drones. This sought-after certification is available for students coming from all over the country in Saitama Prefecture. 【Event Overview】 ■ Training Location: Underwater Drone Practice Field (1-6-27 Otsuka, Kawagoe City, Saitama Prefecture) ■ Enrollment Capacity: Up to 4 participants per session ■ Training Duration: 1 day only *For more details, please refer to the PDF document or feel free to contact us.

• Surveying Consulting

This document introduces a case study of using a "fish finder" for underwater research. Originally developed for recreational fishing, the fish finder has become usable for underwater applications due to its high performance and compact lightweight design, allowing it to be equipped on inflatable boats and similar vessels. Additionally, we also present examples of simultaneous operation with underwater drones and the acquisition of depth data using sonar. Feel free to download if you are interested. 【Document Contents】 ■ Visualization of underwater environments using side and down scan sonar ■ Acquisition of point cloud data ■ Creation of contour maps and sediment hardness maps, simple volume calculations, etc. 【Exhibition at Maintenance & Resilience TOKYO 2022】 Date: July 20 (Wednesday) - 22 (Friday), 2022 Venue: Tokyo Big Sight If you are in the area, please stop by. *For more details, please refer to the PDF document or feel free to contact us.

• Other services and technologies

This document contains useful information for those considering underwater drones, including case studies of their use, operational precautions, and information about pilot certification courses for underwater drones. It is a must-read for anyone interested in underwater drones or those seriously considering a purchase. Feel free to download it if you are interested. 【Contents of the Document】 ■ What are ROVs and underwater drones ■ Potential uses of underwater drones ■ Case studies ■ Precautions and issues in operating underwater drones ■ Safety submersible pilot certification courses for underwater drones ■ Industrial training courses for underwater drones *For more details, please refer to the PDF document or feel free to contact us.

• Other services and technologies

The technology involves conducting inspections of underwater structures using an underwater autonomous robot camera (underwater drone). ■ What is NETIS? The New Technology Information System (NETIS) is a database system operated by the Ministry of Land, Infrastructure, Transport and Tourism, aimed at actively utilizing new technologies to continuously create excellent technologies related to public works and other projects. By using technologies registered in NETIS, national and local governments can receive additional points in construction performance evaluations for public works projects they commission. This technology enables inspections of narrow areas that were previously difficult to inspect and inspections at great depths where risks are heightened. *For more details, please refer to the PDF materials or feel free to contact us.

• Other services and technologies