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- W4293251850 abstract "Abstract: The signal system designed here is intended to raise metal rods from the underground of road when red signal is energized. This scheme is adapted to restrict the road traffic strictly. When the red light turned in to green, automatically the metal rods will be lowered to below the road level. In addition after stopping the traffic, pedestrians are allowed to cross the road, for which an automatic announcement will be made to alert them. Since it is a prototype module, basic theme is presented for single road, but for real time applications it can be implemented for all sides of the cross roads . The demo module is constructed with single signal post which contains red, green & yellow signals. The main processing unit constructed with 89C2051 controller chip is programmed to energize indicators one after another automatically with specific timings. Once the system is energized, initially green indicator will be glow, after some time green indicator will be switched off and yellow indicator will be glown, and then red indicator will be energized. As long as red indicator remains in glowing condition, walking person symbol simulated with green LED’s will be flashed continuously until the green indicator glows. During red indicator on, metal rods remains above the road level, after that these rods will be lowered automatically. DC motor is used to raise and lower the metal rods moving mechanism. The moving mechanism is constructed with Rack & pinion. Voice record cum playback unit designed with ISD1820 chip is used to make an auto announcement such that during red signal condition “now pedestrians can cross the road” will be announced automatically. This message will be repeated until the red signal turned off. H Bridge IC is used to drive the DC motor. Especially this system is very useful for school zones." @default.
- W4293251850 created "2022-08-27" @default.
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- W4293251850 date "2022-06-30" @default.
- W4293251850 modified "2023-09-30" @default.
- W4293251850 title "Unique Signal System for Road Traffic" @default.
- W4293251850 doi "https://doi.org/10.22214/ijraset.2022.43701" @default.
- W4293251850 hasPublicationYear "2022" @default.
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