吉川工業 List of Products and Services

This system utilizes RFID technology with radio waves and magnetic fields to detect whether "safety harness hooks are being used" within a designated area and alerts the site to encourage workers to properly use fall protection equipment. By using an IoT system, the hook usage status at the site can be monitored from a remote office. ■ System Overview 1. Set up the "Area Setting Device" and "IoT Box" at the high-altitude work site. 2. Workers wear the "IC Tag-equipped Hook Holder" and "Hook Magnet." * These can be easily attached to commercially available safety harnesses (owned by the customer). 3. Install a remote monitor box at the site office. 4. Detect whether safety harness hooks are being used within the area; if not in use, an alert will be issued. 5. The PC monitoring screen at the site office allows for checking the number of people in the area and the usage/non-usage of safety harnesses, and if there are any non-users, an alert will be issued from the PC. ■ Example of Utilization… It can be used in various high-altitude work sites. Site examples: Bridge construction, residential construction sites, rooftop work, tower structures, high-altitude work vehicles.

• Construction company

**[Amendment to the Labor Safety and Health Act]** In January 2022, there was a legal amendment regarding fall prevention equipment, and interest in ensuring safety in high-altitude work has increased. This system utilizes RFID technology with radio waves and magnetic fields to detect whether "safety belt hooks are being used" within a designated area and alerts the site, thereby encouraging workers to properly use fall prevention equipment. **■ System Overview** 1. Set up an "area setting device" at the high-altitude work site to define the hazardous area. 2. Workers attach the "IC tag-equipped hook holder" and "hook magnet." *Note: These can be easily retrofitted to commercially available safety belts (owned by the customer).* 3. The system detects whether safety belt hooks are being used within the area, and if they are not being used, it issues an alert. **■ Example of Application Sites** This system can be utilized in general high-altitude work sites. Example sites: Bridge construction, residential construction sites, rooftop work, tower structures, and other work sites with risks of falls and accidents.

• Construction company

**[Amendment to the Labor Safety and Health Act]** In January 2022, there was a legal amendment regarding fall prevention equipment, and interest in ensuring safety in high-altitude work has increased. This system utilizes RFID technology with radio waves and magnetic fields to detect whether "safety harness hooks are being used" within a designated area and alerts the site, thereby encouraging workers to properly use fall prevention equipment. **■ System Overview** 1. Set up the "ON/OFF Area Setting Device" and "Receiving Alarm Device" at the high-altitude work site. * The ON Area Setting Device can be installed at the entrance of the site, allowing all areas beyond it to be designated as work areas. 2. Workers will wear the "IC Tag-Equipped Hook Holder" and "Hook Magnet." * These can be easily attached to commercially available safety harnesses (owned by the customer). 3. The system detects whether safety harness hooks are being used within the high-altitude area, and if they are not being used, it issues an alert. **■ Example of Utilization** This system can be used in various high-altitude work sites. Examples include: bridge construction, residential construction sites, rooftop work, tower structures, and other work sites with risks of falls and accidents.

• Construction company

News---------------------------------------------- From March 29, 2024 (Friday)～ We have launched a dedicated product site for W Alert https://w-alert.net/ -----------------------------------------Yoshikawa Industrial Co., Ltd. ICT ～Now accepting reservations for demo units～ The worker proximity detection system "W Alert" uses magnetic field and radio wave technology to alert when a "tagged person" and a "vehicle equipped with a detector" come close, reducing the risk of contact accidents. 【Features】 　■360° detection with magnetic field sensors 　■Detection distance can be set with a switch dial 　■Standard two-stage alarm function (Yellow Zone, Red Zone) 　■Uses specific low-power radio stations for stable detection distance 　■Proven track record in the construction industry *For details, please refer to the catalog. *We are available for product explanations online and for demo attendance. Please feel free to contact us.

• others

**[Amendment to the Labor Safety and Health Act]** In January 2022, there was a legal amendment regarding fall prevention equipment, and interest in ensuring safety in high-altitude work has increased. The Harness Alert detects when the safety harness hook is not detached from the hook holder and notifies users with an alarm (alert). It encourages high-altitude workers to use safety harnesses properly. *It can be easily attached to commercially available safety harnesses as an "add-on"!* **■ System Overview** 1. Set up the "Area Setting Device" at the high-altitude work site. The Area Setting Device can be selected from three types: Spot, Rope, and Wide, depending on the application. (For details, please refer to the basic information section.) 2. Workers will wear the "IC Tag-equipped Hook Holder" and "Hook Magnet." 3. Detect whether the "safety harness hook is being used" within the area. If the safety harness hook is not in use, an alarm (alert) will be issued. **■ Applicable Sites** General high-altitude work sites (bridge construction, residential construction sites, rooftop work)

• others

This is a case study of utilizing NETIS registered technology QS-150004-VE in crane trucks. □ System Overview - Installation Details Worker: Holds an active tag Crane truck body & hook section: Equipped with a magnetic field detector & magnetic field transmitter (Compatible vehicles: Rough terrain cranes, crawler cranes, etc.) - Alarm Scene When a worker holding the tag approaches the vehicle's surroundings and the suspended load, the tag emits a buzzer sound and vibration to alert the worker. □ Utilization Scene (with proven results) Certain airport land reclamation and leveling work *The photo of the detection set is a standard product.

• others

Using the technology cultivated at the steel mill site, we process the rolls and impart new characteristics. By applying hard chrome plating to the surface of your rolls, we aim to increase the strength of the rolls, enhance wear resistance, and achieve longer lifespan and more efficient maintenance.

• Special Construction Method
• Power Equipment

**[Amendment to the Labor Safety and Health Act]** In January 2022, there was a legal amendment regarding fall prevention equipment, and interest in ensuring safety in high-altitude work has increased. This system utilizes RFID technology with radio waves and magnetic fields to detect whether "safety harness hooks are being used" within a designated area and alerts the site, encouraging workers to properly use fall prevention equipment. **■ System Overview** 1. Set up the "Area Setting Device" at the high-altitude work site. * The rope is highly flexible, allowing for free formation of areas on-site. It is designed for outdoor use and is excellent in dustproof and waterproof properties. 2. Workers will wear the "IC Tag-equipped Hook Holder" and "Hook Magnet." * These can be easily attached to commercially available safety harnesses (owned by the customer). 3. The system detects whether safety harness hooks are being used within the area, and if they are not in use, an alert is issued. **■ Example of Utilization...** This can be used in various high-altitude work sites. Examples include: bridge construction, residential construction sites, roof work, tower structures, and other work sites with risks of falls and accidents.

• others

This is a system that manages the entry and exit of people and vehicles through long-distance and high-speed authentication. 【System Features】 - Authentication by simply holding it up from inside the vehicle: Authentication can be performed while slowly driving. - Easy installation: Installation work can be completed in half a day by just placing it on a dedicated base. - Compatible with various cards: It can also support FeliCa and Mifare cards. 【Benefits of Implementation】 - Monitoring during passage: Information about people and vehicles during passage can be recorded and displayed. - Confirmation of on-site personnel: It is possible to confirm the presence of personnel in real-time. - Linked search for still images and videos: Still images and videos linked to passage history can be recorded, allowing for history confirmation through footage. 【Selectable Basic Packages】 You can choose from a wide range of options, from slow driving packages that can mitigate traffic jams to low-cost handheld authentication. - Slow driving package / Stop package / ETC onboard unit authentication package / Handheld authentication package Software options are also available, from full-featured versions to cost-effective server-based systems. Of course, customization to meet customer needs is also possible.

• Entrance/Exit Gate System
• RFID/IC tags
• Entrance/exit management and personal identification system

"I want to prevent unauthorized access," "I want to know who is currently in the area," "I want to check past access records." There is an increasing demand for such needs not only for security but also for safety. On the other hand, there are many factories that have not implemented these systems for reasons such as: - Authentication is cumbersome - Unable to authenticate when carrying items - High implementation costs including construction - Poor environment causing equipment to break - Complex systems that cannot be managed operationally Yoshikawa Industrial's hazardous area access management system has been developed by addressing each of these on-site needs. We have developed not only the turnstile but also the dedicated reader built into the housing in-house. If you are interested, please download the PDF or contact us.

• Entrance/exit management and personal identification system
• Facility Management System
• Other security systems

News---------------------------------------------- From March 29, 2024 (Friday)～ We have launched a dedicated product site for W Alert ----------------------------------------- Yoshikawa Industrial Co., Ltd. ICT NETIS Registration No. QS-150004-VE ★ A trusted safety product with over 8,000 units installed This system provides warnings to both drivers and workers, reducing "near misses" at construction sites. 【Features】 1. Stable detection of workers who are not visible from all 360° directions. 2. Can be finely adjusted according to the site conditions and the size of heavy machinery, with detection range adjustable in 6 levels from 3 to 12 meters. 3. Two-stage alarms of "outer" and "inner" are possible depending on the detection distance (★ Our patented technology). 4. Detects people hidden in dark sites such as tunnels, behind shadows of materials, or obstacles. 5. Usable outdoors. Dustproof and waterproof specifications, capable of operating in temperatures from -20°C to 75°C. 6. We handle everything from design to development to manufacturing in-house. We can also flexibly accommodate custom requests.

• Other measuring instruments

When approaching the restricted area around an opening, an alarm will sound. In the work area, there are many places and things, such as openings and dangerous equipment, that we do not want people to approach. Even when we say "Stay away!" people may unconsciously get closer. Even if barriers are set up to prevent access, individuals may casually climb over them and encounter danger. In such cases, communication among colleagues can be effective, but there may be times when people do not notice dangerous behavior or when working alone, making it impossible to alert others. The "Rope Proximity Alarm System" serves as an alarm on behalf of colleagues when approaching danger. By surrounding dangerous areas with a rope-like antenna and having workers carry a tag, we can alert them to the proximity of dangerous locations and people. Since it is rope-like, it can be used linearly or to encircle dangerous areas, allowing for flexible responses. It can also be used in conjunction with the "Worker Proximity Detection System." Please feel free to contact us for more information. ＊＊＊＊＊＊＊＊＊＊ TEL: 093-671-8660 Mail: rfsol@ykc.co.jp RF Solutions Division, Sales Representative

• Security Sensor Systems

Active RFID enables easy wireless communication without the need for a license. We offer a lineup that is easy to integrate into systems, including dustproof and waterproof tags, vehicle-mounted readers, and sensors. 【Features】 ■ No need for manual operation. Automatically detects when entering the area without contact. ■ Wireless communication range of 10 to 20 meters. Real-time location detection from a distance is possible. ■ Using tags with built-in sensors allows simultaneous detection of vibrations and magnetic fields. ■ Customization of functions according to application is also available. *For more details, please download the catalog or contact us.

• Waterproofing work
• others