| 摘要 |
There is disclosed a stand-alone light emitting beacon including impact and/or pressure sensing electronics which provides an indication that the wearer has been subject to an impact or pressure capable of causing injury, such as concussion. There is also disclosed a helmet comprising a protective shell, at least one LED positioned visibly on an outer surface of the helmet, electronics comprising a microprocessor and programs for controlling an illumination of the LED and an impact sensor.
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