Frequency modulation broadcast listening monitoring receiver

Abstract

The invention discloses a frequency modulation (FM) broadcast listening monitoring receiver, which comprises a micro processor, an FM tuning receiving module circuit electrically connected with a corresponding port of the micro processor, a TU tuning level window detection circuit for monitoring intensity of an FM electromagnetic wave, a standard time (ST) signal interference removal separation circuit for monitoring whether stereo of an FM transmitter is normally encoded, a double-sound-track audio level ultralow-speed sampling preprocessing circuit for monitoring audio levels of two sound tracks in the FM stereo, a code division multiple access (CDMA) communication module, a local high-definition monitoring circuit, a remote single-channel time division monitoring multi-sound-track circuit capable of remotely and movably monitoring the stereo, and a power conversion and control circuit. Only if the receiver is arranged in an effective range of an FM broadcast coverage signal, the receiver can work like the common radio receiver after the frequency of the receiver is set; a machine can automatically transmit monitored working frequency data to a monitoring center without being limited by space and time; and all-day real-time monitoring can be realized.

Description

technical field [0001] The invention belongs to the technical field of FM broadcast monitoring equipment, and in particular relates to a listening and monitoring receiver for remote monitoring of FM broadcast signals. Background technique [0002] In the past ten years, with the development of our country's society and economy, FM (frequency modulation wireless) radio has become more and more popular among the people. Whether it is the transmission frequency of FM radio or its signal coverage, there has been a relatively large increase, and its audience is also From fixed listening at home to mobile listening in mobile phones and cars, it can be said that FM (FM radio) broadcasting has entered a new period of development. [0003] For a long time, due to the one-way transmission form that has been formed in the traditional broadcasting and television industry, the technical quality of broadcasting can only be established and relied on the guarantee level of the transmiss...

AI Technical Summary

Problems solved by technology

[0003] For a long time, due to the one-way transmission form that has been formed in the traditional broadcasting and television industry, the technical quality of broadcasting can only be established and relied on the guarantee level of the transmission and transmission system, and indirectly reflected by monitoring the working status of the transmitting end of the transmission and transmission system. The coverage quality of broadcast wireless signals roughly judges the technical quality of the receiving end of the audience listening to the broadcast, which determines that it is difficult for the broadcasting organization to directly, timely and accurately understand and grasp the auditory experience of the audience listening to the broadcast program. This has been a problem for a long time. Problems for Broadcast Technologists

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