Poor optical sensor for mobile robots in education

Abstract

The article is about how to create poor sensor like radar for obstacles detection. At first, there is description of concept arrangement of the individual parts. The picture shows that the measuring head is mounted on classical modeling actuator. There is necessary to use three sensors which are implemented to sonar for good coverage mobile robot workspace. The following figure shows how sonar detection range looks. In this part is mentioned how to recalculate distance of obstacle from ADC value. If the ADC is a 10-bit value of the converter, then the final result is. Real measurement is approximately 2% different like measurement with sensors but it is still enough for application. In the end of article is mentioned how to implement sonar into mobile robot by Arduino module. Conclusion deals with possibilities of communication Arduino board with superior control system through USART, I2C, SPI, TWI or some parallel interface 8 or 16 bit which can be implemented by separate code and it deals with improving all system in the future. This contribution is the result of the project implementation: KEGA – 059TUKE-4/2014“Rozvoj kvality života, tvorivosti a motoriky hendikepovaných a starších osôb s podporou robotických zariadení”, supported by the Research & Development operational Program funded by the ERDF.