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Warning triangle is imperative when emergencies happened during driving . Drivers are required to put the triangle 50 100 meters behind the car, but this act is quite risky and often causes the chain accident, if the drivers of the coming cars fail to react fast enough or pay attention.
「Sign Cloud」combines laser projections and police radio communication , enables users to project and upload data and receive updated messages from the radio . If an accident happens, the device will also flash and send out warning messages , so that the coming drivers will be informed in advance and have more time to react .
Hsin Fang Fan