AI-powered drones to help detect hill fires during Chung Yeung Festival. Hong Kong’s Fire Services Department will launch three new AI-assisted drone technologies to strengthen fire detection and its response to heightened risks during tomb-sweeping activities ahead of the Chung Yeung Festival on Sunday. Wong Tak-fai, acting divisional officer for information and communications technology, said on Friday that the technology would improve the speed and accuracy of fire detection to help the department operate more.