| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a delay detection method for remote control videos, for surely recognizing the delay situation of video transmission and improving safety of control (operation) in a remote control system. <P>SOLUTION: The delay detection method includes: a first step of calculating a code for recognizing the current time and the identification ID of a transport machine with a control computer 28 at an operation destination; a second step of indicating the code to video encoders 27a and 27b as data to be imposed; a third step of imposing code data on video data and transmitting them to a control computer 40d at an operation source by the video encoders; a fourth step of obtaining code information from received data with the control computer at the operation source; a fifth step of transmitting the code information together with a remote control input signal to the control computer at the operation destination by the control computer at the operation source; and a sixth step of stopping the operation of the transport machine by the control computer at the operation destination, when a difference between time of the returned code and the current time is equal to or larger than a fixed range or when the identification ID of the transport machine is different. <P>COPYRIGHT: (C)2012,JPO&INPIT |
