Unseen Japan: Japanese City Pioneers New Drone-based Warning System

Unseen Japan: Japanese City Pioneers New Drone-based Warning System. “The drones made by ACSL, a Tokyo-based robotics firm, are controlled over 4G LTE broadband. Upon receiving an alert from the J-Alert system, the drones are programmed to fly at an altitude of approximately 50 meters (approximately 164 feet)…. As they overfly the beaches of Sendai’s coastal Miyagino and Wakabayashi wards, they blast an alert siren, accompanied by a pre-recorded voice alert: ‘Tsunami keihō happyō. Tadachi ni hinan suru koto’ (‘A tsunami warning is in effect. Evacuate at once.’)”

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