All right. According to Archie official website's query, the camera can sample optical time-frequency transmission asynchronously, and constantly overcome many key technologies of optical time-frequency transmission and measurement, such as attosecond time delay measurement, and its technical indicators have reached the international advanced level. In addition, Dr. Yang has also been recognized by many national invention patents and international high-level SCI journals. So Dr. Yang has no electricity and no network surveillance camera.