摘要
提出了一种新型的、用双音频编码实现的音频远方跳闸装置。发端装置把继电保护设备送来的跳闸命令调制成抗干扰能力非常强的双音频编码DTMF(DualToneMultipleFrequency)信号,利用音频通道传输,而收端装置把接收到的双音频信号进行快速的解调和译码,恢复成相应的跳闸命令。该装置具有极高的安全性及可靠性。
A new-style audio remote tripper is presented,which adopts DTMF (Dual Tone Multiple Frequency)technology.The tripping commands from protective relays are modulated by the sending terminal into DTMF codes with strong anti-jamming capability.Transmitted via audio channel,the DTMF codes are demodulated and decoded quickly,and the corresponding tripping commands are then resumed at the receiving terminal.The device has very high security and reliability.
出处
《电力自动化设备》
EI
CSCD
北大核心
2003年第9期49-51,共3页
Electric Power Automation Equipment
