Some techniques, such as clock skew correction, local broadcast authentication and adaptive redundant messages were adopted in EETS to make the time synchronization in WSN energy-efficient and secure.

• EETS采用时钟频偏校正、本地广播认证以及自适应冗余报文技术，使得无线传感器网络中的时间同步具备能量高效和安全的特性。