| 摘要 |
<p>PURPOSE:To prevent collision from generating, by arranging coils made of superconducting material respectively on the relative surfaces between objects, and by permitting current to flow in the direction of a magnetic force repulsed to both of the coils. CONSTITUTION:On the relative surfaces of trains 1, 2, superconducting coils 11, 21 are arranged. Through controllers 13, 23, by time-differentiating signal from devices 12, 22 for measuring a distance between the relative surfaces of the trains, an approaching speed between the trains 1, 2, and a relative deceleration are found. When a relative distance exceeds a measurement value, then according to the degree of the relative distance, the approaching speed, and the relative deceleration, power sources 14, 24 are worked, and coil current is controlled, and collision between the trains is prevented from being generated. As a result, approach between objects can be smoothly suppressed, and collision can be certainly prevented.</p> |
