{"func": "getCameraFrame", "params": {"id":0, "path": "/home/zx/", "depth_name": "111", "point_cloud_name": "cloud"}}
{"func": "loopGetCameraFrame", "params": {"id":0, "path": "/home/zx/saveImage/zl-back-wheels-near/", "times":30, "interval":1}}
{"func": "stepGetCameraFrame", "params": {"id":0, "path": "/home/zx/saveImage/1/"}}