三信建材工業 List of Products and Services

The performance documentation of the "Non-GNSS Environment Compatible Drone and Pole Camera Utilization Structural Inspection Support Technology" provided by SANSIN Building Materials Industry introduces the achievements of inspection operations that detect deformations such as cracks in various structures using drones equipped with autonomous flight and collision avoidance features. It also includes actual site photos and data. Please use it as a reference when considering inspection services utilizing drones! 【Published Information】 - Document 1: Our Technology - On-Site Implementation Cases (Hokkaido, Ishikawa Prefecture, Aichi Prefecture) - Document 2: Bridge Inspection Support Technology - Achievements Immediately After Performance Catalog Publication ■ Drone-related demonstration experiments and business achievements ■ Bridge inspection results after the revision of the regular inspection guidelines for road bridges (after the issuance of the performance catalog) ■ Other bridge inspection case studies (7 cases) ■ Equipment inspection and building inspection case studies (4 cases) ■ Introduction to the performance catalog for road bridge inspection support technology (February 2019) ■ About the deliverables *For more details, please download the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments

The Ministry of Land, Infrastructure, Transport and Tourism is promoting the use of new technologies in regular inspections of road bridges and other structures, compiling each technology into a "Inspection Support Technology Performance Catalog." The "Inspection Support Technology Using Non-GPS Environment-Compatible Drones for Close Visual Inspections" has been included in this catalog since it was published in 2019. In October 2021, to make it usable in a wide range of sites, high-altitude photography technology using pole cameras was added in addition to drone-based close-up shooting technology. Furthermore, in June 2022, it was registered in "NETIS," which is operated by the Ministry of Land, Infrastructure, Transport and Tourism. This technology uses drones equipped with a camera that has 'self-position estimation functionality' and 'collision avoidance functionality (Visual SLAM)' to perform close-up photography of concrete components in the upper and lower structures of bridges. The captured images can automatically detect cracks through AI analysis, accurately record the width, length, and other scales and locations of damage, and allow for the creation of orthomosaic images, damage diagrams, and three-dimensional models. [Advantages of Our Technology] ■ No need for traffic regulation due to the installation of bridge inspection vehicles ■ Reduction of hazardous work at heights, such as rope access, etc.

• others

A drone capable of autonomous flight without relying on GNSS uses a pole camera that can extend up to 11 meters to capture images of infrastructure structures (architecture and civil engineering). It extracts damage and creates damage diagrams through image analysis technology (AI and manual). Additionally, we can create three-dimensional models of structures and generate orthomosaic images according to customer requests. 【Ministry of Land, Infrastructure, Transport and Tourism Listed Inspection Support Technology Performance Catalog Adoption Record】 - Structural inspections (architecture, civil engineering, equipment): 240 cases - Among them, bridge inspection records: 49 bridges (19 prefectures) (Ministry of Land, Infrastructure, Transport and Tourism: 26 bridges, prefectures: 12 bridges, municipalities: 11 bridges ⇒ Aichi Prefecture: 13 bridges) 【Deliverables】 Captured images, damage photos (composite images/damage display), damage diagrams * Depending on requests, we can provide image layout diagrams, three-dimensional models, etc. 【Exhibition Information】 ■ Maintenance and Resilience TOKYO 2024 - International Drone Exhibition - 〇 Date: July 24 (Wed) - 26 (Fri) 〇 Venue: Tokyo Big Sight East Exhibition Hall 〇 Exhibitor Seminar: July 24 (Wed) 11:00 - 11:50 JDC Forum: July 26 (Fri) 12:10 - 12:30 Theme: Advanced management of bridges, aqueducts, etc. using a three-dimensional inspection ledger.

• others

We would like to introduce a technology that supports structural inspections consisting of "non-GNSS environment compatible drones," "pole cameras," and "image analysis software for extracting damage." *Technical overview materials are available in the catalog section at the bottom of this page. Additionally, this document has been created for those who have downloaded it to provide an overall understanding of our company's technology. Since detailed information is not included, please contact us through the inquiry section of this page or the email address listed at the end of the presentation materials if you require specific explanations. *It is also possible to conduct individual briefing sessions using web conferencing systems. Sanshin Kenzai Kogyo Co., Ltd. Development Department

• Image analysis software

The Ministry of Land, Infrastructure, Transport and Tourism is conducting training on inspection support technologies using non-GNSS environment-compatible drones and pole cameras, as described in the "Inspection Support Technology Performance Catalog" issued by the ministry. By participating in this training and joining the Social Infrastructure Maintenance Promotion Council (commonly known as SIMC), you will be able to utilize this inspection support technology. Currently, the following training is being misused. If you are interested, please contact SICM or Sanshin Kenzai Kogyo Co., Ltd.

• Vocational Training/Technical School

**Surface Impregnation Material** Surface impregnation materials are penetrating protective agents used to impart specific performance to the surface of concrete, such as preventing the intrusion of factors that cause concrete deterioration, with the aim of modifying the surface layer. Although these materials are easy to apply and relatively inexpensive, there is a challenge in that there is no established application method, and good modification effects are not consistently achieved on-site. In this repair material, by cross-linking silicate with aluminum, aluminosilicate minerals are generated, and by applying the developed "Sanken Method," we have successfully increased hardness. **Sanken Method** Deteriorated concrete has enlarged capillary voids and microscopic voids within the hydration product framework, making the surface brittle and allowing water to penetrate more easily. The modification concept of the Sanken Method is to restore hardness by reinforcing the framework structure with impregnated silicate and to enhance waterproofing by sealing the capillary voids with silicates, thereby achieving effective results.

• Other polymer materials

At Sanxin Building Materials Industry Co., Ltd., we conduct investigations that include thermal photographs of exterior walls as visual aids for exterior wall inspections. By using infrared images in addition to traditional inspections, we can appeal visually to clients, leading to a deeper understanding. In the inspection of concrete structures, we utilize the radar rebar detector "SIR-EZ," which combines a control computer and detection device into one, allowing for quick detection of rebar and non-metallic pipes within the structure. A laser pointer is used to indicate the location of the area currently being surveyed and the position of embedded objects such as rebar from the front and side of the detection device. We provide a speedy rebar survey without careless mistakes. 【Features】 ■ Ability to appeal visually by using infrared images ■ Quick detection of rebar and non-metallic pipes within concrete structures ■ Significant improvement in work efficiency by using equipment equipped with a laser pointer ■ Various investigations including core sampling, compressive strength testing, carbonation testing, and report preparation *For more details, please refer to the PDF document or feel free to contact us.

• Other inspection equipment and devices
• Visual Inspection Equipment

This is a robot developed through joint research between Toyohashi University of Technology and Sanshin Kenzai Kogyo, designed to ascend and descend exterior walls for inspections. The development concept focuses on ensuring the safety of workers, addressing labor shortages, digitizing inspections and surveys, and securing flexibility in application through modularization. Currently, we are conducting verification tests with the aim of commercialization. 【Development Concept】 ■ Ensuring the safety of workers ■ Addressing labor shortages ■ Reducing costs of inspections and surveys ■ Securing flexibility through modularization of inspection equipment 【Benefits of Implementation】 ■ Capable of carrying inspection equipment and using cameras and impact testers to diagnose deterioration and detachment of exterior walls ■ Enables high-altitude inspections without the use of scaffolding or gondolas ■ Eliminates concerns about dangerous work, costs, stress, and aesthetics ■ Allows for inspections of bridge decks without the use of crane trucks on bridge roads *This robot is currently under joint research and development.

• Other inspection equipment and devices

At Sanxin Building Materials Industry Co., Ltd., we aim to provide accurate inspections that yield consistent results, regardless of who conducts them, for investigations of "floating" in structures (mortar) and precise inspections after "floating" repairs. Using a method called "V-transmission," we propagate ultrasonic waves into the structure, detecting delamination (voids) inside the structure from the waveforms of the reflected ultrasonic waves. Since ultrasonic waves can be emitted and propagated through the air, there is no need for a contact medium. 【Features】 ■ Inspection results can be saved as data ■ No differences due to human perception ■ Ultrasonic waves can be emitted and propagated through the air ■ No need for a contact medium *For more details, please refer to the PDF document or feel free to contact us.

• Other inspection equipment and devices
• Visual Inspection Equipment