Seiryo Denki Delivers "IP Broadcast Wireless System" Utilizing Mobile Phone Lines for Disaster Prevention Radio to Yamatokoriyama City, Nara Prefecture
Seiryo Denki Co., Ltd. has delivered a next-generation disaster prevention radio system, the "IP Broadcast Wireless System," which utilizes mobile phone lines, to Yamatokoriyama City, Nara Prefecture. This system enables the simultaneous and reliable distribution of disaster information to residents even during disasters, and strengthens communication capabilities through J-Alert integration and amane Wi-Fi deployment.
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- 📰 Published: April 24, 2026 at 19:00
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Seiryo Denki Co., Ltd. (Head Office: Osaka City; President: Kei Nishii; hereinafter "the Company") has delivered a disaster prevention radio system utilizing mobile phone lines, the "IP Broadcast Wireless System," to Yamatokoriyama City, Nara Prefecture.
City Hall Control Panel Outdoor Speaker
■ About the "IP Broadcast Wireless System"
This is a next-generation disaster prevention radio system that utilizes mobile phone lines to simultaneously distribute disaster information to residents from the city hall via outdoor speakers, individual receivers, and other means. It can also automatically distribute emergency information issued by the government by linking with J-Alert (National Instant Warning System). Furthermore, because it uses a dedicated communication network (closed network) separate from general mobile phone lines, it is less susceptible to congestion during disasters, enabling stable operation even in emergencies. In addition, since it utilizes existing mobile phone base stations, there is no need to install relay stations, contributing to a reduction in maintenance costs.
■ Background of Introduction
Yamatokoriyama City, known as one of Japan's leading goldfish producing areas and retaining a strong castle town atmosphere, has previously relied mainly on registered disaster prevention emails and the city's official LINE account for information dissemination to citizens. However, these methods required prior registration and were dependent on individuals' communication environments and smartphone/PC usage, leading to a demand for a more direct and reliable means of delivering information. Strengthening the information transmission system in areas prone to landslides and flood-prone areas, such as the western edge of the city, was also a challenge.
■ Effects of Introduction
Improved Reliability of Information Transmission
Outdoor speakers have been installed at 10 locations throughout the city, primarily in landslide warning areas, enabling direct information dissemination to residents through "simultaneous broadcasting." By combining multiple transmission methods, including traditional registered emails and LINE, with broadcasting via outdoor speakers, the reliability of information transmission during emergencies has been significantly improved.
Achieved Rapid Dissemination System through Batch Distribution
A mechanism has been established to batch distribute information to registered emails and LINE from the system's operation screen. Furthermore, it is possible to link with existing information dissemination systems that allow city officials to distribute to various services from PCs and smartphones, and to broadcast disaster prevention radio from there. This has enabled rapid information transmission while reducing the operational burden on city officials.
Achieved a Perfect Backup System by 24-Hour Monitoring of J-Alert Reception Status
Our customer service center monitors the reception status of J-Alerts distributed by the Fire and Disaster Management Agency 24 hours a day. In the unlikely event of a reception failure, we have established a system to promptly grasp the situation and share it with city officials, preventing missed emergency information and ensuring reliable information transmission in any situation.
Strengthened Communication System during Disasters by Deploying "amane Wi-Fi"
We simultaneously deployed the mobile communication service "amane Wi-Fi." This service supports multiple mobile carriers (multi-carrier), and in the unlikely event of a communication failure with a specific carrier, it automatically switches to the most stable line at that location (Note 1). This minimizes the risk of communication disruption between the city hall and evacuation centers during disasters, establishing a system that enables rapid information sharing and response. In addition, since costs are incurred only when used, normal maintenance costs can be minimized.
Moving forward, the Company will continue to contribute to the creation of safe and secure communities by providing optimal disaster prevention solutions tailored to the challenges of each local government.
[Website for IP Broadcast Wireless System]
https://www.solution.seiryodenki.co.jp/ip-broadcast-wireless-system/
[Website for "amane Wi-Fi"]
https://www.seiryodenki.co.jp/project/amane-wifi/
(Note 1) If a specific mobile carrier is out of range, it automatically switches to the most stable line. Also, if communication conditions significantly deteriorate, it is possible to automatically detect the most stable line and reconnect through "Network Optimization" in terminal operations.
・The product and service names mentioned in this news release are trademarks or registered trademarks of their respective organizations and companies.
・The information (product/service content, contact information, URL, etc.) described in this news release is current as of the announcement date.
Please note that it may change without notice, and the information may differ from the search date.
[Customer Inquiries]
Seiryo Denki Co., Ltd. Osaka Branch, Social Systems Division
Address: JRWD Dojima, 2-4-27 Dojima, Kita-ku, Osaka City
City Hall Control Panel Outdoor Speaker
■ About the "IP Broadcast Wireless System"
This is a next-generation disaster prevention radio system that utilizes mobile phone lines to simultaneously distribute disaster information to residents from the city hall via outdoor speakers, individual receivers, and other means. It can also automatically distribute emergency information issued by the government by linking with J-Alert (National Instant Warning System). Furthermore, because it uses a dedicated communication network (closed network) separate from general mobile phone lines, it is less susceptible to congestion during disasters, enabling stable operation even in emergencies. In addition, since it utilizes existing mobile phone base stations, there is no need to install relay stations, contributing to a reduction in maintenance costs.
■ Background of Introduction
Yamatokoriyama City, known as one of Japan's leading goldfish producing areas and retaining a strong castle town atmosphere, has previously relied mainly on registered disaster prevention emails and the city's official LINE account for information dissemination to citizens. However, these methods required prior registration and were dependent on individuals' communication environments and smartphone/PC usage, leading to a demand for a more direct and reliable means of delivering information. Strengthening the information transmission system in areas prone to landslides and flood-prone areas, such as the western edge of the city, was also a challenge.
■ Effects of Introduction
Improved Reliability of Information Transmission
Outdoor speakers have been installed at 10 locations throughout the city, primarily in landslide warning areas, enabling direct information dissemination to residents through "simultaneous broadcasting." By combining multiple transmission methods, including traditional registered emails and LINE, with broadcasting via outdoor speakers, the reliability of information transmission during emergencies has been significantly improved.
Achieved Rapid Dissemination System through Batch Distribution
A mechanism has been established to batch distribute information to registered emails and LINE from the system's operation screen. Furthermore, it is possible to link with existing information dissemination systems that allow city officials to distribute to various services from PCs and smartphones, and to broadcast disaster prevention radio from there. This has enabled rapid information transmission while reducing the operational burden on city officials.
Achieved a Perfect Backup System by 24-Hour Monitoring of J-Alert Reception Status
Our customer service center monitors the reception status of J-Alerts distributed by the Fire and Disaster Management Agency 24 hours a day. In the unlikely event of a reception failure, we have established a system to promptly grasp the situation and share it with city officials, preventing missed emergency information and ensuring reliable information transmission in any situation.
Strengthened Communication System during Disasters by Deploying "amane Wi-Fi"
We simultaneously deployed the mobile communication service "amane Wi-Fi." This service supports multiple mobile carriers (multi-carrier), and in the unlikely event of a communication failure with a specific carrier, it automatically switches to the most stable line at that location (Note 1). This minimizes the risk of communication disruption between the city hall and evacuation centers during disasters, establishing a system that enables rapid information sharing and response. In addition, since costs are incurred only when used, normal maintenance costs can be minimized.
Moving forward, the Company will continue to contribute to the creation of safe and secure communities by providing optimal disaster prevention solutions tailored to the challenges of each local government.
[Website for IP Broadcast Wireless System]
https://www.solution.seiryodenki.co.jp/ip-broadcast-wireless-system/
[Website for "amane Wi-Fi"]
https://www.seiryodenki.co.jp/project/amane-wifi/
(Note 1) If a specific mobile carrier is out of range, it automatically switches to the most stable line. Also, if communication conditions significantly deteriorate, it is possible to automatically detect the most stable line and reconnect through "Network Optimization" in terminal operations.
・The product and service names mentioned in this news release are trademarks or registered trademarks of their respective organizations and companies.
・The information (product/service content, contact information, URL, etc.) described in this news release is current as of the announcement date.
Please note that it may change without notice, and the information may differ from the search date.
[Customer Inquiries]
Seiryo Denki Co., Ltd. Osaka Branch, Social Systems Division
Address: JRWD Dojima, 2-4-27 Dojima, Kita-ku, Osaka City