Digital bi-directional automatic variable-frequency wireless microphone and system

Abstract

The invention discloses a digital bi-directional automatic variable-frequency wireless microphone and a digital bi-directional automatic variable-frequency wireless microphone system. The a digital bi-directional automatic variable-frequency wireless microphone comprises a transmitter, a receiving and a charging base, wherein the transmitter comprises a first control channel, a first audio channel, a first peripheral circuit, a first processor, a first battery, a first battery charging circuit and a female charging connector terminal; the receiver comprises a second control channel, a second audio channel, a second peripheral circuit and a second processor, and also comprises a patrol channel, a field bus interface and a wired network routing module; and the charging base comprises a battery charging module and a male charging connector terminal. According to the microphone and the microphone system provided by the invention, code matching, frequency matching, frequency conversion, networking and management become more scientific and the problems about co-channel interference, communication code crossing, confused frequency point management, inconvenient charging and unreliable charging of the traditional microphone are solved by changing structures and components and also by a way of improving signal transmission, frequency point management and multi-unit networking.

Description

technical field [0001] The invention relates to wireless microphone products, in particular to a digital two-way automatic frequency conversion wireless microphone and system. Background technique [0002] The microphone currently used in the teaching field is a traditional microphone. There are two main types of traditional microphones, one is a wired desktop gooseneck microphone or a handheld microphone; the other is a wireless U, V, and G segment FM microphone. [0003] Technical flaws of traditional microphones: [0004] 1. The wired microphone limits the teacher to the podium area, which is not conducive to the teacher's interactive teaching. [0005] 2. The U, V, and G segment FM wireless microphones use FM technology, which requires manual matching and setting of the operating frequency points of the transmitter and receiver before they can be used. If you change a transmitter, you need to re-match the frequency. Even for wireless microphones that use infrared ray ...

AI Technical Summary

Problems solved by technology

[0004] 1. The wired microphone limits the teacher to the podium area, which is not conducive to the teacher's interactive teaching

[0005] 2. The U, V, and G segment FM wireless microphones use FM technology, and need to be manually matched to set the working frequency of the transmitter and receiver before use. If you change a transmitter, you need to re-match the frequency

Even for wireless microphones that use infrared frequency pairing, their operating frequency is fixed, and co-channel interference is prone to occur

[0006] 3. When the U, V, and G segment FM wireless microphones work, the transmitter sends signals at a fixed operating frequency, and the receiver receives signals at the same operating frequency. There is no two-way communication scheduling, and frequency conversion during work cannot be realized.

[0007] 4. When the U, V, and G segment FM microphones are installed, the receiver needs to set the working frequency point, and then it will not be changed. Therefore, after the school uses multiple microphones for a long time, it is necessary to maintain the microphones of multiple classrooms and set different corresponding working frequencies. It is easy to get confused and confused, which is not conducive to later maintenance

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