计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2013年
10期
90-93
,共4页
微小卫星%控制器局域网%自组织%物理地址%超时%CANoe环境
微小衛星%控製器跼域網%自組織%物理地阯%超時%CANoe環境
미소위성%공제기국역망%자조직%물리지지%초시%CANoe배경
micro-satellite%Controller Area Network(CAN)%self-organization%physical address%time-out%CANoe environment
在传统卫星控制器局域网(CAN)网络中，各单机节点地址固定且需预先配置。为此，提出一种微小卫星CAN网络自组织技术设计方法。将网络工作模式分为正常模式和配置模式，采用物理地址逐级匹配的方式实现对连接到网络上节点的自主发现，并根据网络地址表对节点地址进行自动分配。实验结果表明，自组织星载CAN网络可有效发现并配置接入CAN网络的节点，节点的平均配置时间少于30 ms，提高了卫星电子系统的总装、集成及测试速度，缩短了卫星研制周期。
在傳統衛星控製器跼域網(CAN)網絡中，各單機節點地阯固定且需預先配置。為此，提齣一種微小衛星CAN網絡自組織技術設計方法。將網絡工作模式分為正常模式和配置模式，採用物理地阯逐級匹配的方式實現對連接到網絡上節點的自主髮現，併根據網絡地阯錶對節點地阯進行自動分配。實驗結果錶明，自組織星載CAN網絡可有效髮現併配置接入CAN網絡的節點，節點的平均配置時間少于30 ms，提高瞭衛星電子繫統的總裝、集成及測試速度，縮短瞭衛星研製週期。
재전통위성공제기국역망(CAN)망락중，각단궤절점지지고정차수예선배치。위차，제출일충미소위성CAN망락자조직기술설계방법。장망락공작모식분위정상모식화배치모식，채용물리지지축급필배적방식실현대련접도망락상절점적자주발현，병근거망락지지표대절점지지진행자동분배。실험결과표명，자조직성재CAN망락가유효발현병배치접입CAN망락적절점，절점적평균배치시간소우30 ms，제고료위성전자계통적총장、집성급측시속도，축단료위성연제주기。
Aiming at the problem that Controller Area Network(CAN) in micro-satellites onboard applications works properly only in the situation when each node holds a legal node-address which is pre-configured manually, a self-organization method for micro-satellites’ CAN is introduced, which divides the network operation status into normal and configuration mode, it helps to discover automatically the nodes joining in CAN network by matching physical address step by step, and then configures them with assigned node-address using network address table. Experimental results show that self-organizational satellites onboard CAN network can discover and configure effectively the nodes connected to the network, and the average configuration time is less than 30 milliseconds, contributing to rapider assembly, integration and test of satellites electronic systems, and greatly reduce the development time.
