| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle rolling measurement system capable of performing dynamic rolling measurement for a railway vehicle traveling on an orbit by associating with an image of the orbit, suppressing a production cost, reducing a size, and increasing quality of a captured image, and to provide an image synchronization apparatus preferably used for the vehicle rolling measurement system.SOLUTION: A vehicle rolling measurement system comprises: a vehicle rolling measurement apparatus 30 including an acceleration sensor; an image synchronization apparatus 10; and an imaging apparatus 20, such as a video camera, mounted on a vehicle. Sensor data is obtained for every time interval which is selected by the acceleration sensor, and a synchronization number is given to each of the sensor data. The image synchronization apparatus 10 includes a digital-analog conversion circuit which converts each of the synchronization numbers of the sensor data to an audio level signal for every time interval selected by the acceleration sensor. An output terminal of the vehicle rolling measurement apparatus 30 for the synchronization numbers and an input terminal of the image synchronization apparatus 10 are connected. An output terminal of the image synchronization apparatus 10 for the audio level signals and an audio input terminal of the imaging apparatus 20 are connected. |
