For problems of incorrect ranging caused by interference and high cost of existing collision avoidance system of mine locomotive. a collision avoidance and ranging system of mine locomotive based on laser ranging was designed by use of STC90C516RD+ single chip microcomputer and TDC-GP1 timing chip with high precision. Ranging principle of the system and design schemes of software and ... https://chefesquipmenters.shop/product-category/reusable-straws/