Method and system for measuring time error between communication nodes based on broadband power line carrier

• Main Authors: ZHANG JUNSHENG, TU YAXIN, ZHANG FUZHOU, LI XIANZHONG, YUAN SHIJIONG, DENG SHUYU, HE PEIDONG, SHEN WENQI, LIU CHEN, ZHANG JIAMIN, LI XIAOJUN, LIU LINA
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION

The invention discloses a method and a system for measuring a time error between communication nodes based on broadband power line carrier, and belongs to the technical field of power line carrier communication. According to the invention, timestamp processing is carried out on a receiving bag and a sending bag in a physical layer, scheduling and response of a time error measurement protocol packet and calculation of a time error are carried out in a carrier communication application layer, and synchronization time information processing is carried out in the communication application layer, so that time errors caused by process management, time slot management, network management and the like are avoided; therefore, the precision of timestamp processing is improved, and the precision and reliability of a measurement result are improved. 本发明公开了基于宽带电力载波的通讯节点间时间误差测量方法和系统，本发明属于电力载波通讯技术领域。本发明通过在物理层，对收、发书包进行时间戳处理，在载波通讯应用层进行时间误差测量协议包的调度和响应以及时间误差的计算，由于在通讯应用层进行同步时间信息处理，避免了因进程管理、时隙管理、网络管理等引起的时间误差，从而提高了时间戳处理的精准度，提高了测量结