摘要
绝缘子遥测系统中数据的传输分为单一接力式射频传输、单一GSM短消息传输和两者混合传输三种基本方式。作为应用最广泛的接力式射频通信方式,在比较恶劣的通信信道条件下,要实现长链路中数据的高效可靠传输,就必须在认真分析信道模型的基础上,从通信硬件和软件协议两方面进行改进。实践证明,改进后的系统能在降低误比特率的同时,缩短通信时间15倍以上,达到了设计要。文中论及的技术可应用于电力系统其它设备的远程在线监测,为电力行业的线路检修由计划检修过渡到状态检修提供了科学依据。
In the remote supervision system for insulators, there are three modes to transmit data, the first one is the radio frequency (RF) relaying transmission mode, the second one is short messaging service (SMS) transmission based on global system for mobile communication (GSM) mode and the third one is the combination of above mentioned modes. As a most widely applied mode, to realize the high efficient and reliable transmission of data in long link circuit under bad communi-cation channel condition, the RF relaying transmission should be improved in both two aspects, i.e., the hardware and the protocol, on the basis of conscientiously analyzing the channel model. It is proved in practice that using the improved system the communication time can be shortened to one fifteenth of its original time and the bit error rate is reduced too. The presented technology can be applied to on-line remote supervisions of other equipments in power systems.
出处
《电网技术》
EI
CSCD
北大核心
2003年第6期48-51,共4页
Power System Technology
