| 摘要 |
FIELD: railway transport; railway signaling, interlocking and block signaling. ^ SUBSTANCE: proposed device contains speed meter connected to acceleration calculating unit, brake cylinder pressure transmitter, sanding gear and sanding gear control unit. Device includes also setting unit, sand feed sensor, designed speed check unit, switch element and AND gate connected by first input to output of designed speed check unit whose first, second and third inputs are connected, respectively, to outputs of speed meter, acceleration calculating unit and first output of setting unit. Second input of and gate is connected to output of designed pressure check unit whose first and second inputs are connected, according, to output of brake cylinder pressure transmitter and second output of setting unit. Third input and AND gate is connected with output of sand feed sensor. Output of AND is connected to control input of switch element whose input is connected to output of sanding gear control unit, and output is connected with sanding gear input. ^ EFFECT: improved traffic safety. ^ 1 dwg |
