| 摘要 |
Abstract of Disclosure A decorative alert system includes an alerting circuit arrangement disposed in a casing, which includes a central process circuit and a sparkling control circuit, wherein the alerting circuit arrangement electrically connected with a centrifugal sensor for controlling the alerting circuit arrangement by switching on and off of a power source. When a centrifugal force is applied on the alerting circuit arrangement, the alerting circuit arrangement is electrically connected with the power source, so as to electrically connect with the central process circuit and the sparkling control circuit. So, a plurality of illuminators controlled by the sparkling control circuit are lightened up for illuminating sparkling lights to signify as an alert signal. Thus, the power source of the alerting circuit arrangement is serially connected with a photo cell unit for switching the alerting circuit arrangement on and off respective to the environmental brightness wherein when the surrounding turns dark, the photo cell unit detects the reducing of brightness and switches on the alerting circuit arrangement in order to generate the sparkling lights. So, the decorative alert system of the present invention is capable of mounting on the spoke of the wheel of the bicycle or a valve of a tire of a vehicle in such a manner the sparkling lights on the rotating wheel of the vehicle provide an alert signal to the surrounding and put ornamental effect on the vehicle.
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