Safety bookbag cover

The utility model relates to safety schoolbag clothes, which comprises an electronic flash device composed of an inverter, a decimal distributor, etc.; a square wave oscillating circuit composed of three NOT gates, capacitors and resistors of an inverter integrated circuit is connected with the cloc...

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Bibliographic Details
Main Authors ZIRAN CAI, TIANSHENG CAI
Format Patent
LanguageEnglish
Published 17.05.2000
Edition7
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The utility model relates to safety schoolbag clothes, which comprises an electronic flash device composed of an inverter, a decimal distributor, etc.; a square wave oscillating circuit composed of three NOT gates, capacitors and resistors of an inverter integrated circuit is connected with the clock end of a decimal distributor integrated circuit; the four feed of the decimal distributor integrated circuit which can export high levels, and can generate fourfold time high levels are connected with the base electrodes of three dynatrons, and other four feet can also export high levels, and are connected with the base electrodes of the dynatrons and another dynatron; the four dynatrons respectively control four LEDs, and sixteen LEDs are arranged to form a pattern shaped like the Chinese character 'ri'. The utility model has the advantages that through the flicker of light, drivers can be reminded to pay attention to highway conditions, and thus the accident that people are hit by vehicles can be prevented from generating.
Bibliography:Application Number: CN1999202132U