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A method and system for testing emergency broadcast rds modulation degree

A technology of emergency broadcasting and testing method, applied in broadcasting monitoring/testing/troubleshooting devices, transmission systems, digital transmission systems, etc., can solve the problems of difficulty in debugging FM transmitters and high debugging costs, and achieve simple and convenient debugging process. The effect of reducing the difficulty of debugging and low cost

Active Publication Date: 2022-03-18
HUIZHOU WELLAV TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of difficult debugging and high debugging cost of FM transmitters in the current emergency broadcasting, the present invention provides an emergency broadcasting RDS modulation degree testing method and system

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  • A method and system for testing emergency broadcast rds modulation degree
  • A method and system for testing emergency broadcast rds modulation degree

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Embodiment Construction

[0024] 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 the accompanying drawings and 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.

[0025] In the drawings of the embodiments of the present application, the same or similar symbols correspond to the same or similar components; , "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or It implies that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describin...

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Abstract

The invention relates to the technical field of emergency broadcast debugging, in particular to a method and system for testing emergency broadcast RDS modulation degree. Applied to the RDS modulation degree test system, the system includes an emergency broadcast adapter and an FM transmitter; the method includes: receiving the antenna signal transmitted by the FM transmitter, extracting the pilot signal in the antenna signal; processing the antenna signal and outputting the baseband signal, from Extract the RDS signal from the baseband signal; collect the amplified pilot signal and RDS signal and perform analog-to-digital conversion, and calculate the amplitude of the RDS signal relative to the pilot signal according to the converted data; according to the amplitude of the RDS signal relative to the pilot signal Adjust the RDS signal modulation degree based on the difference from the empirical value. The invention can accurately read the intensity of the RDS signal, and the construction personnel can accurately adjust the FM transmitter through the aid of the village-equipped adapter. The debugging process is simple and convenient, and no special spectrum analyzer is required. Difficulty debugging.

Description

technical field [0001] The invention relates to the technical field of emergency broadcast debugging, in particular to a method and system for testing emergency broadcast RDS modulation degree. Background technique [0002] Emergency broadcasting means that when major natural disasters, emergencies, public health and social security and other sudden public crises occur, emergency broadcasting can provide a fast and efficient information transmission channel, and the disaster news or disasters that may be caused The hazards are delivered to the hands of the people, so that the people know what happened at the first time, how to evacuate, avoid danger, and minimize the loss of life and property. The minimum construction unit for emergency broadcasting is the village level. Generally, a small FM transmitter station will be set up in each village to broadcast the voice and RDS broadcast control data of the emergency broadcasting system. [0003] When used in emergency broadcast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04H20/12H04H20/59H04L1/00
CPCH04H20/12H04H20/59H04L1/0003
Inventor 王学宏陈文超
Owner HUIZHOU WELLAV TECH
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