Abstract
We are planning to develop HFAMRO-2 which can play with people using the step-on interface. Therefore we would like to improve the mobility performance and to replace the range sensor from HFAMRO-1. This paper shows the modified design of mobile unit which will be able to double the speed of movement. And it also shows the comparison between new range sensor and old one based on the results of performance measurements. The new sensor can detect and measure the stepped foot more precisely.
