| 摘要 |
<p>The present invention relates to the monitoring field, and particularly to a device for monitoring audio signal transmission. The device comprises an audio collection unit, a sending unit and a far-end interface. The audio collection unit collects an audio signal at a monitoring position; the sending unit further comprises: a voltage/current converter which converts the audio signal collected by the audio collection unit into a current signal from a voltage signal, and an output interface, which is connected to the voltage/current converter and is connected to the far-end interface through at least one core cable to send out the current signal of the audio signal; and the far-end interface receives the current signal of the audio signal, and converts the current signal into a voltage signal and then transmits same to back-end monitoring system equipment. By means of the example of the present invention, the signal interference of the audio signal during monitoring transmission can be reduced, so that the construction difficulty is reduced, and costs of transmission cables can be reduced.</p> |
