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| 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(Dual Tone Multiple Frequency)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。 |
| 关键词: 音频通道 双音频编码 远方跳闸 |
| DOI： |
| 分类号:TM77 TN915.853 |
| 基金项目: |
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| Application of new-style audio remote tripper in protection |
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LI Shou-cai 1 ZHU De-min 2 YANG Lin 3
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| Abstract: |
| 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. |
| Key words: audio channel,DTMF,remote tripping |
