“Variable QR code key holder with space specifications” is an innovative product developed by the Optical Search Society. This organization has established the “National Drone Laser Search Team,” utilizing drones and helicopters equipped with lasers to promote the use of wearable items and key holders printed with variable QR codes made of retroreflective materials for mountaineers. Through this technology, the society aims to develop and spread a nationwide laser-based life-saving system.
By 2026, commercial operations of “flying taxis” are expected to begin, providing the opportunity for anyone to ride them. However, what happens if one makes an emergency landing in a mountainous area or at sea where radio communication is unavailable? In such situations, laser search utilizing the retroreflective variable QR code key holder can be highly effective. Since radio waves cannot physically penetrate underwater, wireless communication becomes impossible, but green laser search enables rapid and wide-ranging detection up to approximately 10m underwater.

In the future, the society proposes using laser-equipped satellites to conduct search-and-rescue operations from space. As a preliminary experiment, last year, a prism-shaped retroreflective material from this key holder was mounted on the micro-satellite “Space Tuna 1” and successfully launched, followed by a reflection experiment conducted at an altitude of 400km.

In an era where “flying cars” are expected to populate the skies worldwide, having this retroreflective variable QR code key holder might one day save lives. This technology enhances search and rescue operations in remote mountainous and marine areas, enabling quicker and more efficient detection and rescue of missing persons. The widespread adoption of the optical search system not only improves safety for mountaineers and outdoor enthusiasts but also reduces the time and costs associated with search and rescue operations.

Additionally, the variable QR code allows users to register and update photos and messages as many times as needed. It is expected to become a popular and unique communication tool even in urban environments.

By uploading a photo or message from yesterday’s lunch, it serves as a great conversation starter. When used as an ID tag, it can be highly effective in preventing children or beloved pets from getting lost. For elderly individuals or those with dementia, writing specific medical conditions or symptoms on the message adds peace of mind. It’s also a must-have item in preparation for a potential Nankai Trough earthquake.

* Text may be generated using the automatic translation service.