Measuring The Contact Force Of A Pantograph By Image Processing Technology
Free (open access)
189 - 198
T. Koyama, M. Ikeda, K. Nakamura, S. Tabayashi & M. Niwakawa
A contact force between pantograph and contact line is one of the important criteria to evaluate contact performance. Hence, contact force measuring methods were developed. The currently-used measurement methods use built-in sensors on the panhead. However, these sensors affected the dynamic characteristics of the pantograph. In addition, the methods need data transmitting equipment, because built-in sensors are set under a high-voltage condition. To eliminate these drawbacks, the authors have developed a new contact force measuring method which can replace the all built-in sensors with image processing sensors mounted on the rooftop of the train. To verify measurement accuracy of this method, we performed an excitation test of the pantograph. Experimental results show that the measurement method meets the requirements of the EN standard. Keywords: contact force, pantograph, catenary, image processing, line sensor camera, EN standard.
contact force, pantograph, catenary, image processing, line sensor camera, EN standard