| 摘要 |
The auxiliary alarm system can be mounted at eye level on a trunk lid or the like or can be seated on or secured to a vehicle rear window shelf for viewing by a trailing vehicle driver, pedestrians, cyclists, etc. The system includes a housing containing a display window with a visual warning display device, such as a bulb-lighted printed sheet, or an L.E.D. array mounted therein to provide a traveling message and activatable through an electrical circuit connected to the vehicle rear brake light or turn signal circuit. The housing can include a timer and battery to prolong the display, once it is activated by the rear brake light circuit and/or a sensor-discriminator to select one of a number of visual warning displays in response to multiple brake pedal or turn signal circuit activations. An audible alarm can also be connected in the housing. The housing can further include a radio signal or radar signal activatable switch and battery to activate the visual display device upon receipt of a radio or radar signal. The system is compact, inexpensive, easily installed and needs no complicated wiring.
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