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Software implementation method for threshold setting and adjustment of receiver cpu sensitivity

An implementation method and sensitivity technology, which is applied in the threshold setting and adjustment field of receiver CPU sensitivity, can solve the problems of inconsistent receiving distance, low sensitivity of small signals, inaccuracy, etc., and achieve the effect of achieving consistency

Inactive Publication Date: 2020-07-03
胡跃进
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In the past, the receiving sensitivity control and adjustment methods of wireless microphones were simple, and the receiving sensitivity could not achieve the best effect; the wireless microphone receiver CPU sensitivity threshold was high, the small signal sensitivity was low, and the receiving distance was short; Accurate, making the receiving distance of each channel inconsistent

Method used

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  • Software implementation method for threshold setting and adjustment of receiver cpu sensitivity

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Embodiment Construction

[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0014] The present invention provides a software implementation method for threshold setting and adjustment of receiver CPU sensitivity, comprising the following steps:

[0015] S1. Value: The AGC signal output by pin 15 of the 10.7MHZ FM discriminator LA1140 is a DC component that follows the positive change of the RF signal strength. Use the potentiometer (VR7) to extract AGC from the potentiometer by adjusting the potentiometer The voltage value on is just less than or equal to the threshold set by the MCU (SN8P2706) is 0.5V;

[0016] S2. Setting: MUTER setting, when it is lower than the threshold 0.1V, it is equal...

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Abstract

The invention discloses a software implementation method for setting and adjusting a threshold of receiver CPU sensitivity. The method comprises the following steps of S1, valuing; S2, setting, and S3controlling. The maximum receiving distance is achieved through controlling the threshold via software; the anti-interference function is achieved through improving the threshold and reducing receiving sensitivity under the condition of fixed noise interference; the software adjusts the sensitivity, and the consistency of receiving distances (sensitivity) of multiple channels is achieved.

Description

technical field [0001] The invention belongs to the technical field of microphone ultra-long-distance transmission, and more specifically relates to a software implementation method for setting and adjusting the threshold value of the CPU sensitivity of a receiver. Background technique [0002] The wireless microphone is composed of several pocket transmitters (can be installed in the pocket, the output power is about 0.01W) and a centralized receiver. Each pocket transmitter has a different working frequency. The centralized receiver can Simultaneously receive voice signals of different operating frequencies from each pocket transmitter. It is suitable for occasions such as stage podiums. [0003] In the past, the receiving sensitivity control and adjustment methods of wireless microphones were simple, and the receiving sensitivity could not achieve the best effect; the wireless microphone receiver CPU sensitivity threshold was high, the small signal sensitivity was low, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 胡跃进
Owner 胡跃进
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