The sensor nodes of a wireless grain depot surveillance system are deployed in crystal grids, which provide lot of valid position information. To avoid the energy consumption unbalance of the single hop routing model adopted by LEACH prot

太原铁路局湖东电力机务段配属的SS4机车CCBII之动机通讯数据。-The motivation for SS4 locomotive CCBII Taiyuan Railway Bureau in hudonglocomotive depot attachment data communication.