CAJ | 학술논문

针对传统时间同步算法通过交换较多数据包来获取同步精度而导致能耗过大的现象，结合煤矿井下网络结构的特殊性，在分析双向成对同步机制和单向广播同步机制基础上，利用广播传输特性将2种机制有效结合起来，提出一种基于簇状结构的主被动式低功耗双向时间同步算法。实验表明，基于簇状结构的主被动式同步方式可有效解决传统双向报文交互频繁的问题，在误差允许范围内达到减少消息开销和平衡整个网络能量损耗的目的。
침대전통시간동보산법통과교환교다수거포래획취동보정도이도치능모과대적현상，결합매광정하망락결구적특수성，재분석쌍향성대동보궤제화단향엄파동보궤제기출상，이용엄파전수특성장2충궤제유효결합기래，제출일충기우족상결구적주피동식저공모쌍향시간동보산법。실험표명，기우족상결구적주피동식동보방식가유효해결전통쌍향보문교호빈번적문제，재오차윤허범위내체도감소소식개소화평형정개망락능량손모적목적。
The energy consumption problem that exists in traditional time synchronization algorithm because of ex-changing more packets to obtain synchronization accuracy. According to the special network structure in underground coal mine, on the basis of the analysis of bidirectional pair and one-way broadcast synchronization mechanism,combine both synchronization mechanisms with the transmission characteristics of radio effectively,and a two-way synchronization algorithm based on clusters structure which at the characteristics of the passive and low power is proposed. Experiments show that,synchronization algorithm which been proposed can solve the problems of exchanging packets frequently effectively,in the range of allowable error can reduce message consumption and bal-ance the network energy.