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Bicycle speed device papers

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Along with the quick development of science and technology, the application of SCM and more extensive, drive traditional control test technology constantly updated. Now the speed table is mostly electronic, use LED digital tube or LCD instantly shows, show more intuitive. Electronic speed table by using the contact speed sensor instead of soft shaft transmission speed table, can make the installation position of not affected by distance limit, further effectively overcome the speed to the table of mechanical some shortcomings.

This design is given based on AT89S51 as the core, of the microcontroller calculation and control function, and by using the systematic LCD display module real-time display measured the speed of design program and system software.

The scheme by using LCD display module, and quick and efficient algorithm, thus in saving system resources and simplify programming based on guarantee measuring precision and real-time system. Speed shows part adopts LCD display, thereby saving the required microcontroller mouth lines and peripheral equipments, simultaneously also simplifies shows part of the software programming. Case realized the electric car speed instantly shows.

Keywords: SCM, Hall sensors; LCD display

Along with the quick development of science and technology, the application of SCM and more extensive, drive traditional control test technology constantly updated. Now the speed table is mostly electronic, use LED digital tube or LCD instantly shows, show more intuitive. Electronic speed table by using the contact speed sensor instead of soft shaft transmission speed table, can make the installation position of not affected by distance limit, further effectively overcome the speed to the table of mechanical some shortcomings. This design is given based on AT89S51 as the core, of the microcontroller calculation and control function, and by using the systematic LCD display module real-time display measured the speed of design program and system software. The scheme by using LCD display module, and quick and efficient algorithm, thus in saving system resources and simplify programming based on guarantee measuring precision and real-time system. Speed shows part adopts LCD display, thereby saving the required microcontroller mouth lines and peripheral equipments, simultaneously also simplifies shows part of the software programming. Case realized the electric car speed instantly shows

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