A Novel Inexpensive Camera-Based Photoelectric Barrier System for Accurate Flying Sprint Time Measurement

Area of Science:

• Sports Science
• Biomechanical Engineering
• Athletic Performance Measurement

Background:

• Accurate timing of short distance runs is crucial for athletic performance assessment.
• Professional timing systems (e.g., electronic photoelectric barriers) are expensive and inaccessible to amateur athletes and smaller clubs.
• Existing commercial systems often lack validated accuracy beyond 30 milliseconds.

Approach:

• Developed a mobile, camera-based timing system using consumer-grade electronics and smartphones.
• Detailed the construction using readily available hardware for cost-effectiveness and simplicity.
• Leveraged open-access schematics and software to encourage further research and development.

Key Points:

• The camera-based system demonstrated proficiency in accurately timing short distance sprints in track and field athletes.
• Comparative analysis against a professional photoelectric cell system showed an accuracy of 62 milliseconds.
• The system's accuracy is comparable to existing commercial timing solutions.

Conclusions:

• The proposed camera-based system provides an affordable and accessible alternative for accurate athletic performance timing.
• This innovation benefits non-professional athletes and smaller sports clubs by democratizing performance assessment technology.
• Open access to the system's design promotes collaboration and advancement in sports technology.