CN111092684A - Automatic frequency selection control system in frequency modulation transmission and reception and use method thereof - Google Patents
Automatic frequency selection control system in frequency modulation transmission and reception and use method thereof Download PDFInfo
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- CN111092684A CN111092684A CN201811239319.4A CN201811239319A CN111092684A CN 111092684 A CN111092684 A CN 111092684A CN 201811239319 A CN201811239319 A CN 201811239319A CN 111092684 A CN111092684 A CN 111092684A
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- frequency
- transmitting
- terminal
- receiving
- transmitting terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/13—Arrangements for device control affected by the broadcast information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/12—Arrangements for observation, testing or troubleshooting
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses an automatic frequency selection control system in frequency modulation transmission and reception, which comprises a transmitting terminal and a plurality of receiving terminals, wherein the transmitting terminal has an RDS frequency modulation transmitting function and an Internet of things gateway function, and the receiving terminal has an RDS frequency modulation receiving function and an Internet of things transmitting or receiving module. The receiving terminal can be informed to modify the frequency to transmit in time when encountering electromagnetic interference.
Description
Technical Field
The invention relates to the field of frequency selection control, in particular to an automatic frequency selection control system in frequency modulation transmission and reception and a using method thereof.
Background
The emergency broadcasting system of each province, city and county is built at present, but because the FM covering signal of the last kilometer is an analog signal, the FM covering signal is very easy to be interfered by electromagnetic environment, the quality of received audio signals is poor, high background noise is accompanied, and simultaneously RDS and audio signals are modulated by double carriers, so that the control effect is poor, and bidirectional communication cannot be realized.
Disclosure of Invention
The invention aims to provide an automatic frequency selection control system in frequency modulation transmission and reception and a use method thereof, which can inform a transmitting terminal of modifying frequency to transmit in time when a receiving terminal encounters electromagnetic interference.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an automatic frequency selection control system in frequency modulation transmission and receipt, includes that a transmitting terminal and a plurality of receiving terminal constitute, and transmitting terminal has RDS frequency modulation transmission function, has thing networking gateway function simultaneously, and receiving terminal has RDS frequency modulation receiving function, has thing networking transmission or receiving module simultaneously.
Further, the method comprises the following steps of; the transmitting terminal carries out bidirectional transmission and interaction of data, the gateway function of the internet of things is started when the transmitting terminal is started, the RDS frequency modulation transmitting function is not started, the transmitting terminal presets a plurality of transmitting frequencies at first, the information of the frequencies is told to the receiving terminals when each receiving terminal is started to register, one receiving terminal carries out self-checking when the receiving terminal is started, the signal intensity of the frequency points is detected at first, the frequency points and the corresponding signal intensity information are transmitted to the transmitting terminal, similarly, when other receiving terminals are started, the signal intensity of the frequency points are also detected, the frequency points and the corresponding signal intensity information are transmitted to the transmitting terminal, and the transmitting terminal analyzes the frequency points and the corresponding signal intensity information transmitted by the receiving terminal through the internet of things technology to obtain a group of numbers.
Further, the method comprises the following steps of; the terminal receives the strongest signal strength, the strength of which is the same as two or more values, the corresponding frequency is the same, and the transmitting end selects the frequency to transmit.
Further, the method comprises the following steps of; the terminal receives the strongest signal intensity value, the two or more values are the same, the corresponding frequencies are different, and the corresponding frequency with the lowest signal value is selected for transmission.
Further, the method comprises the following steps of; the networking transmission module is connected with the receiving terminals, and when each receiving terminal is started to register the transmitting terminal, the preset frequency of the transmitting terminal of the receiving terminal is received.
Further, the method comprises the following steps of; the receiving terminal is started and the transmitting terminal is connected to carry out self-checking on a plurality of frequencies, the signal intensity information of the frequencies of the receiving terminal is informed to the transmitting terminal, the transmitting terminal carries out statistical analysis to find out a corresponding transmitting frequency value, the receiving terminal adjusts the receiving frequency to the transmitting frequency of the transmitting terminal to receive, then the transmitting terminal transmits by using the frequency value, and the receiving terminal receives by using the frequency all the time.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the transmission technology of the Internet of things, the transmitting terminal and the receiving terminal can carry out bidirectional data interaction and control, the receiving terminal can timely inform the transmitting terminal to modify the frequency for transmitting when encountering electromagnetic interference, and after the transmitting terminal modifies the transmitting frequency, the receiving terminal can simultaneously modify the frequency modified by the transmitting terminal for receiving.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
an automatic frequency selection control system in frequency modulation transmission and reception comprises a transmitting terminal and a plurality of receiving terminals, wherein the transmitting terminal has an RDS frequency modulation transmitting function and an Internet of things gateway function, and the receiving terminals have an RDS frequency modulation receiving function and an Internet of things transmitting or receiving module; the receiving terminal can be informed to modify the frequency to transmit in time when encountering electromagnetic interference.
Example 2:
on the basis of the embodiment 1, the transmitting terminal performs bidirectional transmission and interaction of data, the internet of things gateway function is started when the transmitting terminal is started, the RDS frequency modulation transmitting function is not started, the transmitting terminal presets a plurality of transmitting frequencies at first, the frequency information is told to the receiving terminals when each receiving terminal is started to register, one receiving terminal performs self-checking when the receiving terminal is started, the signal intensity of the frequency points is detected at first, the frequency points and the corresponding signal intensity information are transmitted to the transmitting terminal, and similarly, the signal intensity of the frequency points and the corresponding signal intensity information are also detected when other receiving terminals are started, the frequency points and the corresponding signal intensity information are transmitted to the transmitting terminal, and the transmitting terminal analyzes the frequency points and the corresponding signal intensity information transmitted by the receiving terminal through the internet of things technology to obtain a group of numbers; the transmitting end is convenient to be informed to modify the frequency for transmitting, and after the transmitting end modifies the transmitting frequency, the receiving end can simultaneously modify the frequency modified by the transmitting end for receiving.
Example 3:
on the basis of the embodiment 1-2, the strongest value of the terminal receiving signal strength has two or more same values, the corresponding frequencies are also the same, and the transmitting end selects the frequency for transmitting; the receiving end can receive with the frequency conveniently.
Example 4:
on the basis of the embodiment 1-3, the terminal receives the strongest signal intensity value and has two or more same values and different corresponding frequencies, and the corresponding frequency with the lowest signal value is selected for transmission; the receiving end can receive with the frequency conveniently.
Example 5:
on the basis of the embodiment 1-4, the networking transmission module is connected with the receiving terminals, and when each receiving terminal is started to register the transmitting terminal, the preset frequency of the transmitting terminal of the receiving terminal is received; the transmitting terminal presets several groups of transmitting frequencies when being started, is connected with the receiving terminals through the transmission module of the Internet of things, and tells that the preset frequencies of the transmitting terminals of the receiving terminals are not favored when each receiving terminal is started to register the transmitting terminal.
Example 6:
on the basis of the embodiment 1-5, the receiving terminal is started and the transmitting terminal is connected, then self-checking is carried out on a plurality of frequencies, the signal intensity information of the plurality of frequencies of the receiving terminal is informed to the transmitting terminal, the transmitting terminal carries out statistical analysis to find out corresponding transmitting frequency values, the receiving terminal adjusts the receiving frequency to the transmitting frequency of the transmitting terminal for receiving, then the transmitting terminal transmits by using the frequency values, and the receiving terminal receives by using the frequency all the time; the receiving terminal is started and the transmitting terminal is connected to carry out self-checking on several frequencies, the signal intensity information of the several frequencies of the receiving terminal is informed to the transmitting terminal, the transmitting terminal carries out statistical analysis to find out the corresponding transmitting frequency value and informs the receiving terminal of what frequency the transmitting terminal will transmit, the receiving terminal adjusts the receiving frequency to the transmitting frequency of the transmitting terminal to receive, then the transmitting terminal transmits by using the frequency value, and the receiving terminal always receives by using the frequency.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. An automatic frequency selection control system in frequency modulation transmission and reception, characterized in that: the system comprises a transmitting terminal and a plurality of receiving terminals, wherein the transmitting terminal has an RDS frequency modulation transmitting function and an Internet of things gateway function, and the receiving terminal has an RDS frequency modulation receiving function and an Internet of things transmitting or receiving module.
2. A method of using an automatic frequency selection control system in fm transmission and reception as claimed in claim 1, wherein: the transmitting terminal carries out bidirectional transmission and interaction of data, the gateway function of the internet of things is started when the transmitting terminal is started, the RDS frequency modulation transmitting function is not started, the transmitting terminal presets a plurality of transmitting frequencies at first, the information of the frequencies is told to the receiving terminals when each receiving terminal is started to register, one receiving terminal carries out self-checking when the receiving terminal is started, the signal intensity of the frequency points is detected at first, the frequency points and the corresponding signal intensity information are transmitted to the transmitting terminal, similarly, when other receiving terminals are started, the signal intensity of the frequency points are also detected, the frequency points and the corresponding signal intensity information are transmitted to the transmitting terminal, and the transmitting terminal analyzes the frequency points and the corresponding signal intensity information transmitted by the receiving terminal through the internet of things technology to obtain a group of numbers.
3. A method of use of an automatic frequency selection control system in fm transmission and reception as claimed in claim 2, wherein: the terminal receives the strongest signal strength, the strength of which is the same as two or more values, the corresponding frequency is the same, and the transmitting end selects the frequency to transmit.
4. A method of use of an automatic frequency selection control system in fm transmission and reception as claimed in claim 2, wherein: the terminal receives the strongest signal intensity value, the two or more values are the same, the corresponding frequencies are different, and the corresponding frequency with the lowest signal value is selected for transmission.
5. A method of use of an automatic frequency selection control system in fm transmission and reception as claimed in claim 2, wherein: the networking transmission module is connected with the receiving terminals, and when each receiving terminal is started to register the transmitting terminal, the preset frequency of the transmitting terminal of the receiving terminal is received.
6. A method of use of an automatic frequency selection control system in fm transmission and reception as claimed in claim 2, wherein: the receiving terminal is started and the transmitting terminal is connected to carry out self-checking on a plurality of frequencies, the signal intensity information of the frequencies of the receiving terminal is informed to the transmitting terminal, the transmitting terminal carries out statistical analysis to find out a corresponding transmitting frequency value, the receiving terminal adjusts the receiving frequency to the transmitting frequency of the transmitting terminal to receive, then the transmitting terminal transmits by using the frequency value, and the receiving terminal receives by using the frequency all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239319.4A CN111092684A (en) | 2018-10-23 | 2018-10-23 | Automatic frequency selection control system in frequency modulation transmission and reception and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239319.4A CN111092684A (en) | 2018-10-23 | 2018-10-23 | Automatic frequency selection control system in frequency modulation transmission and reception and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111092684A true CN111092684A (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811239319.4A Pending CN111092684A (en) | 2018-10-23 | 2018-10-23 | Automatic frequency selection control system in frequency modulation transmission and reception and use method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN111092684A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437393A (en) * | 2002-02-08 | 2003-08-20 | 三星电子株式会社 | Video signal transmitting apparatus, receiving apparatus, transceiver, and method for determining information channel |
| CN101150325A (en) * | 2006-09-19 | 2008-03-26 | 深圳市朗科科技有限公司 | Method for automatically searching best frequency modulation transmission frequency point |
| CN102480797A (en) * | 2010-11-19 | 2012-05-30 | 倡新科技股份有限公司 | Automatic updating method for wireless connection and signal switching device |
| CN103731163A (en) * | 2013-12-24 | 2014-04-16 | 深圳市元征科技股份有限公司 | Wireless transmitting system and achievement method of wireless transmitting system |
-
2018
- 2018-10-23 CN CN201811239319.4A patent/CN111092684A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437393A (en) * | 2002-02-08 | 2003-08-20 | 三星电子株式会社 | Video signal transmitting apparatus, receiving apparatus, transceiver, and method for determining information channel |
| CN101150325A (en) * | 2006-09-19 | 2008-03-26 | 深圳市朗科科技有限公司 | Method for automatically searching best frequency modulation transmission frequency point |
| CN102480797A (en) * | 2010-11-19 | 2012-05-30 | 倡新科技股份有限公司 | Automatic updating method for wireless connection and signal switching device |
| CN103731163A (en) * | 2013-12-24 | 2014-04-16 | 深圳市元征科技股份有限公司 | Wireless transmitting system and achievement method of wireless transmitting system |
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Application publication date: 20200501 |
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| RJ01 | Rejection of invention patent application after publication |