| 摘要 |
PURPOSE:To perform the position control of an ITV camera, by discriminating the travling, lateral and vertical positions of the present bucket crane, carrying out an operation for the information by which the ITV camera is turned to each position of the bucket crane and supplying the calculated position direction signal. CONSTITUTION:A crane position detector 4 is set to a bucket crane 2 of a bit 1 to detect the traveling, lateral and vertical positions of the bucket crane 2. The crane position signal 11 given from the detector 4 is converted into a position converting signal 12 through a signal converter 5. A crane position discriminator 6 discriminate the position of the crane 2 by means of the signal 12, and a discriminating signal 13 is applied to a camera position direction arithmetic device 7. The device 7 carries out an operation by the signal 13 to obtain a position direction signal 14 with which an ITV camera 3 is turned toward the crane 2. A position controller 8 delivers a position direction controlling signal 15 to the camera by the signal 14 and present position direction signal 16 in order to control the position of the camera 3. Thus the camera 3 receives the control of its position by the signal 15. |
