A Study and Development of Information Network for Ecology Observations

我们已经开发了一个ZigBee传感器网络的生态观察海鸟，条纹剪，列入IUCN红色名录。从淡马岛的实验观测结果中，我们获得了生态学上有用的信息。有数据证实，海水温度的升高会影响离开或返回巢穴的模式。此外，随着RFID的使用，很明显，小鸡经常在晚上训练，这还没有被证明到目前为止。定时同步是必不可少的情况下，多个传感器节点部署在同一个地方。GPS或NTP在某些领域不容易使用。探索了一种新的ZigBee网络节点间定时同步方法。利用这种方法，已经开发了一个系统，以检测和攻击河流中的有害鸟类。有害鸟类对鱼类的捕食不仅造成河流生态破坏，而且造成经济损失。因此，该系统也将有助于维护生态环境。

We have developed a ZigBee sensor network for ecology observation of seabirds, Streaked Shearwaters, listed in IUCN Red List. From the observed results of experiment at Awashima island, we have obtained the ecologically useful information. It has been confirmed by data that the increase of sea temperature affects the pattern of leaving or returning to the nest. Furthermore, with the use of RFID, it becomes evident that chicks are often training at night, which has not been proven so far.Timing synchronization is essential in case where multiple sensor nodes are deployed on the same place. GPS or NTP can not be easily used in some fields. We have explored a new timing synchronization method among nodes in ZigBee network. With this method, a system has been developed to detect and attack harmful birds in rivers. Predation of fishes by harmful birds induces economical deficit as well as ecological damage in rivers. So, the system will also be useful to maintain ecological environment.