| 摘要 |
<p>PURPOSE:To accurately run a running body in a fixed mode in each running section by eliminating the malfunction of the running body due to the failure, erroneous detection, etc., of a sensor or after a power failure. CONSTITUTION:When a running body 2-1 exists in a third running section C, prefixed two trolley lines 5 and 7c of the trolley wires installed along a railway line 1 are connected to the running body 2-1 by means of a connecting means 12 and, from the connection, the existence of the running body 2-1 in the section C is detected and the running of another running body 2-2 in a second running section B is stopped. Therefore, no other running body than the body 2-1 can enter the section C. Since it is not necessary to use any sensor, etc., in addition, the occurrence of erroneous detection is reduced and the malfunction of the running bodies is prevented even when power supply is restored after power failure.</p> |
