CN105656583B - A kind of medium wave emergency broadcase system - Google Patents
A kind of medium wave emergency broadcase system Download PDFInfo
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- CN105656583B CN105656583B CN201610213777.5A CN201610213777A CN105656583B CN 105656583 B CN105656583 B CN 105656583B CN 201610213777 A CN201610213777 A CN 201610213777A CN 105656583 B CN105656583 B CN 105656583B
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- emergent broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of novel medium wave emergency broadcase systems, include system to be sent by the medium wave emergent broadcast that medium wave broadcast broadcasting station transmitter, medium wave emergent broadcast coding demodulator and emergency information distribution platform form, and the medium wave emergent broadcast that demodulator and emergency information response apparatus form is decoded by medium wave emergent broadcast and receives system.The transmission system is communicated by medium wave broadcast to the reception system, can be single or sends analog broadcast signal and digital broadcast signal simultaneously, and digital broadcast signal can carry emergency information and control instruction；The reception system receives and responds emergency information and control instruction that the transmission system is sent.The present invention can not only realize that analog broadcasting and the same of digital broadcasting are broadcast, it can also be carried by digital signal and respond emergency information and control instruction, realize a wide range of covering of emergency information, it timely responds to issue with specific aim, a kind of novel emergent means and emergency set is provided for state and society is emergent.
Description
Technical field
The invention belongs to digital communicating fields, are related to a kind of implementation of medium wave emergent broadcast, in particular to one
Kind utilizes medium wave digital broadcast technologies to realize medium wave emergent broadcast, digital-to-analogue with the system broadcast.
Background technology
Disaster accident frequently occurs all over the world in recent years, and very grave suffering and damage are brought to various regions government and the people
It loses.Emergent industry initially enters the sight of people as a new industry, which is the new industry that country encourages development
With people's livelihood industry, mainstay industry is had become in developed country.Greatly developing emergent industry effectively can prevent and reduce disaster thing
Therefore the loss brought, be conducive to the industry restructuring of base, the market expansion and profit for being conducive to enterprise increase, and are conducive to public affairs
Many safety and healths.
In China, industry of meeting an urgent need has been put into as an emphasis people's livelihood industry in new national development planning.Medium wave
（MW）, shortwave（SW）Broadcast can efficiently realize that wide area covers, corresponding MW/SW multi-band radios cheap and simple.2008
Wenchuan earthquake makes that disaster area interruption of optical cables, mobile phone be obstructed, TV does not work, the urgent buying 10 respectively of Ministry of Civil Affairs, liberation army the four general headquarters/departments
Ten thousand and 170,000 radios are transferred to disaster area and Disaster Response Force, have just highlighted the irreplaceable of MW/SW broadcast.
Invention content
In order to meet the demand, the present invention utilizes existing analog broadcasting basis Broadcast Control facility and resource, it is desirable to provide
A kind of novel medium wave emergency broadcase system, the system play while can realizing analog broadcasting and digital broadcasting, and Emergency time is made
For emergent broadcast, play emergency advance warning, emergency command, stability maintenance of refuting a rumour effect, MMS (Multimedia Message Service) can be usually provided.
To reach above-mentioned technical purpose and effect, the invention is realized by the following technical scheme：
A kind of medium wave emergency broadcase system sends system by medium wave emergent broadcast and medium wave emergent broadcast receives system group
At the medium wave emergent broadcast sends system and carries out digital-to-analogue with broadcasting by medium wave broadcast mode, is connect to the medium wave emergent broadcast
Receipts system carries out broadcast communication, and the medium wave emergent broadcast receives system and receives and respond the medium wave emergent broadcast transmission system
Emergency information and control instruction；
It includes an emergency information distribution platform, a medium wave emergent broadcast coded modulation that the medium wave emergent broadcast, which sends system,
Device and a medium wave broadcast broadcasting station transmitter；Mode receives emergency information publication to the emergency information distribution platform by radio communication
The information content that request and needs are issued, then emergency information and control instruction are converted thereof into, and it is emergent to send the medium wave to
Broadcast code modulator；The medium wave emergent broadcast coding demodulator transmits the emergency information distribution platform emergent
Information and control instruction carry out coded modulation, and are overlapped to be formed for broadcast and carry number with analog audio signal
The signal of information and analog audio information, and it is transferred to the medium wave broadcast broadcasting station transmitter；The medium wave broadcast radio station
The letter for carrying digital information and analog audio information that transmitter transmits the medium wave emergent broadcast coding demodulator
Number modulation after by antenna to the medium wave emergent broadcast receive system carry out medium wave broadcast transmission；
It includes medium wave emergent broadcast decoding demodulator and emergency information response that the medium wave emergent broadcast, which receives system,
Equipment, medium wave emergent broadcast decoding demodulator receive the emergency information sent by the medium wave broadcast broadcasting station transmitter and
Control instruction, and by these emergency informations and control instruction demodulate come, the emergency information response apparatus can show or
Play the information for demodulating and.
Further, include address database, instruction database and emergency information in the emergency system distribution platform
Database.
Further, the emergency information response apparatus includes but are not limited to display screen, sound equipment or loudspeaker.
Further, the communication includes but are not limited to network mode, liaison mode or short message mode.
Further, the medium wave emergent broadcast, which receives system, has particular address code, can receive and respond the medium wave
Emergent broadcast sends the institute's photos and sending messages and control instruction of system, realizes remote response.
Further, the medium wave emergent broadcast send system multiple medium wave emergent broadcasts can be received systems into
Row information is broadcasted and carries out remote control.
Further, the medium wave emergent broadcast, which sends system, to receive system to the specific medium wave emergent broadcast
It is broadcasted into row information and carries out remote control.
Further, within the medium wave emergent broadcast sends system by using the not used 100Hz of medium wave broadcast
Frequency band transmission digital signal, to realize analog broadcasting and digital broadcasting while play.
The working mechanism of the present invention is as follows：
One, medium wave emergent broadcast sends system
1）In the case that non-emergency, emergency information distribution platform is in standby, and the new information publication of reception is asked
Summation content, medium wave emergent broadcast sends system digits broadcast channel and is in idle state, or plays other digital multimedias
Information, such as picture, word content；
2）It needs to send when thering is emergency information and emergency flight control to instruct, or needs to send other digital medium informations,
Information to be sent is encoded and is modulated by medium wave emergent broadcast coding demodulator, and the frequency band of modulated signal is placed in
Within 100Hz, to avoid the interference to analogue audio frequency broadcast singal；And will carry the modulated signal of digital information with it is to be sent
Audio signal be overlapped, form the final signal for carrying digital information and analog audio information；
3）The signal for carrying digital information and analog audio information is broadcasted by medium wave broadcast radio station, realizes simulation
Information and the same of digital information are broadcast.
Two, medium wave emergent broadcast receives system
1）Medium wave emergent broadcast receives system and is constantly in open state, and medium wave emergent broadcast decodes demodulator can be at any time
Information and instruction are received, and is responded according to the information content and control instruction；
2）When medium wave emergent broadcast decoding demodulator receives signal and after demodulate control instruction and information, with itself
Address code is compared, if address code, not within the scope of information response, medium wave emergent broadcast receives system and responded, no
Then, information is responded by emergency information response apparatus, if display screen is shown, sound equipment and loudspeaker play out.
Beneficial effects of the present invention are as follows：
The present invention information medium wave emergency broadcase system, can realize medium wave broadcast analog broadcasting and digital broadcasting it is same
When play, can also be achieved the multimedia forms information such as fixed point, directional transmissions audio, text, picture.Digital broadcasting is utilized simultaneously,
Emergency time carry out emergent broadcast, play emergency advance warning, emergency command, stability maintenance of refuting a rumour effect；Usually carry out common more matchmakers
The digital broadcasting of body information, and the control of fixed point can be timed to specific reception system, there is wide coverage, response speed
Soon, accurate feature is controlled, a kind of novel emergent means and emergency set are provided for state and society is emergent.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
The specific implementation mode of the present invention is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the structural diagram of the present invention.
Figure label explanation：1, medium wave emergent broadcast sends system；101, emergency system distribution platform；102, medium wave is emergent
Broadcast code modulator；103, medium wave broadcast broadcasting station transmitter；2, medium wave emergent broadcast receives system；201, medium wave emergent broadcast
Decode demodulator, 202, emergency information response apparatus.
Specific implementation mode
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.
Shown in Figure 1, a kind of medium wave emergency broadcase system sends system 1 by medium wave emergent broadcast and medium wave is emergent wide
Broadcast the composition of reception system 2, the medium wave emergent broadcast sends system 1 and carries out digital-to-analogue with broadcasting by medium wave broadcast mode, to described
Medium wave emergent broadcast receives system 2 and carries out broadcast communication, and the medium wave emergent broadcast receives system 2 and receives and respond the medium wave
Emergent broadcast sends the emergency information and control instruction of system 1.
It includes an emergency information distribution platform 101, medium wave emergent broadcast coding that the medium wave emergent broadcast, which sends system 1,
Modulator 102 and a medium wave broadcast broadcasting station transmitter 103；The emergency system distribution platform 101 contains address database, instruction
Database and emergency information database, the emergency information distribution platform 101 can be received by modes such as network, phone, short messages
The information content that emergency information posting request and needs are issued, and according to these information, emergent letter is generated in conjunction with own database
Breath and control instruction, then send these emergency informations to be sent and control instruction to the medium wave emergent broadcast coded modulation
Device 102；The emergent letter that the medium wave emergent broadcast coding demodulator 102 transmits the emergency information distribution platform 101
Breath and control instruction are encoded and are modulated, and modulated signal is placed in the frequency band within 100Hz, meanwhile, the medium wave is emergent
The digital signal modulated is superimposed by broadcast code modulator 102 with analog audio signal, formed for broadcast and
The signal of digital information and analog audio information is carried, and sends the medium wave broadcast broadcasting station transmitter 103 to；The medium wave
Broadcasting station transmitter 103 is used to carry digital information by what the medium wave emergent broadcast coding demodulator 102 transmitted
It is modulated with the signal of analog audio information, and modulated signal is sent to the medium wave emergent broadcast by antenna and receives system
System 2, the later transmitter in existing medium wave broadcast radio station can be used directly in the medium wave broadcast broadcasting station transmitter 103.
The medium wave emergent broadcast receives system 2 and is sent out by medium wave emergent broadcast transmission system 1 including one for receiving
That sends carries the medium wave emergent broadcast decoding demodulator 201 and one of the signal of digital information and analog audio information for ringing
Answer emergency information and the emergency information response apparatus 202 of control instruction.Medium wave emergent broadcast decoding demodulator 201 can be from
The medium wave emergent broadcast sends in the signal that system 1 is sent and demodulates analog audio signal, can also demodulate digital signal；Institute
State medium wave emergent broadcast decoding demodulator 201 by the emergency information demodulated and control instruction and Self address code and database into
Row comparison, when itself belonging to the address range for needing to respond, the medium wave emergent broadcast decoding demodulator 201 will automatically turn on
Or wake up the emergency information response apparatus 202, by emergency information by the emergency information response apparatus 202 carry out display or
Person plays, to realize the broadcast of emergency information.
Further, the medium wave emergent broadcast, which receives system 2, has particular address code, can receive and respond the medium wave
Emergent broadcast sends the institute's photos and sending messages and control instruction of system 1, realizes remote response.
Further, the medium wave emergent broadcast, which sends system 1, to receive system 2 to multiple medium wave emergent broadcasts
Remote control is broadcasted and carried out into row information, and it is wide into row information can also to receive system 2 to the specific medium wave emergent broadcast
It broadcasts and carries out remote control.
System 1 is sent in the medium wave emergent broadcast, needs to make following dispose：
1）The medium wave emergent broadcast, which sends system 1, has a workable frequency resource for being used for medium wave broadcast, when deployment
The frequency resource for directly using existing medium wave broadcast radio station is applied newly without sending system 1 for the medium wave emergent broadcast
Frequency resource；
2）The emergency system distribution platform 101 disposes address database, instruction database and emergency information database, and
The information such as IP address, telephone number are configured for the emergency system distribution platform 101；During described address database includes described
Wave emergent broadcast receives the address information in system 2, and described address instruction database includes that the medium wave emergent broadcast receives system
2 control instructions to be responded of system, the emergency information database include that the type of emergency information and corresponding coding, raising are answered
Anxious efficiency；
3）The emergent letter that the medium wave emergent broadcast coding demodulator 102 generates the emergency system distribution platform 101
Breath and control instruction are modulated, and modulated signal is placed in the frequency band within 100Hz, then the medium wave emergent broadcast is encoded
The signal that modulator 102 modulates is superimposed with analog audio signal, and generation carries digital information and analogue audio frequency letter
The signal of breath；
4）The carrying that the medium wave broadcast broadcasting station transmitter 103 generates the medium wave emergent broadcast coding demodulator 102
There is the signal of digital information and analog audio information to carry out amplitude-modulating modulation, is sent by antenna.
System 2 is received in medium wave emergent broadcast, needs to make following dispose：
1）The working frequency points that the medium wave emergent broadcast receives system 2 will be arranged in medium wave emergent broadcast transmission system
In 1 working frequency points；
2）The medium wave emergent broadcast, which receives system 2, has unique address code, instruction database and emergency information data
Library；Unique address code receives system 2, the finger for recognizing whether information and instruction are sent to this medium wave emergent broadcast
It includes that the medium wave emergent broadcast receives the control instruction to be responded of system 2, the emergency information database packet to enable database
Type containing emergency information and corresponding coding improve efficiency of meeting an urgent need；
3）The medium wave emergent broadcast decoding demodulator 201 sends the transmission of system 1 for demodulating the medium wave emergent broadcast
The signal for carrying digital information and analog audio information, therefrom demodulate emergency information and control instruction, the medium wave is answered
Anxious broadcasting decoder demodulator 201 will demodulate emergency information and control instruction and the address code of itself, instruction database and meet an urgent need
Information database is compared, and judges whether to respond emergency information and control instruction, if judging result is to carry out emergent sound
It answers, then controls the emergency information response apparatus 202 and responded；
4）The emergency information response apparatus 202 is used to respond what the medium wave emergent broadcast decoding demodulator 201 demodulated
Emergency information and control instruction；The emergency information response apparatus 202 can be the equipment such as display screen, sound equipment, loudspeaker.
The working mechanism of the present invention is as follows：
One, medium wave emergent broadcast sends system
1）In the case that non-emergency, emergency information distribution platform is in standby, and the new information publication of reception is asked
Summation content, medium wave emergent broadcast sends system digits broadcast channel and is in idle state, or plays other digital multimedias
Information, such as picture, word content；
2）It needs to send when thering is emergency information and emergency flight control to instruct, or needs to send other digital medium informations,
Information to be sent is encoded and is modulated by medium wave emergent broadcast coding demodulator, and the frequency band of modulated signal is placed in
Within 100Hz, to avoid the interference to analogue audio frequency broadcast singal；And will carry the modulated signal of digital information with it is to be sent
Audio signal be overlapped, form the final signal for carrying digital information and analog audio information；
3）The signal for carrying digital information and analog audio information is broadcasted by medium wave broadcast radio station, realizes simulation
Information and the same of digital information are broadcast.
Two, medium wave emergent broadcast receives system
1）Medium wave emergent broadcast receives system and is constantly in open state, and medium wave emergent broadcast decodes demodulator can be at any time
Information and instruction are received, and is responded according to the information content and control instruction；
2）When medium wave emergent broadcast decoding demodulator receives signal and after demodulate control instruction and information, with itself
Address code is compared, if address code, not within the scope of information response, medium wave emergent broadcast receives system and responded, no
Then, information is responded by emergency information response apparatus, if display screen is shown, sound equipment and loudspeaker play out.
The medium wave emergency broadcase system of the present invention can be also used for Huinong's information broadcast system：
In the emergency system distribution platform, provide it is non-emergency in the case of Huinong's information issuing function, in conjunction with described
Address database and described instruction database, in the non-emergency digital broadcasting function of providing Huinong's information.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of medium wave emergency broadcase system, it is characterised in that：System is sent by medium wave emergent broadcast（1）With medium wave emergent broadcast
Reception system（2）Composition, the medium wave emergent broadcast send system（1）Digital-to-analogue is carried out with broadcasting, to institute by medium wave broadcast mode
It states medium wave emergent broadcast and receives system（2）Broadcast communication is carried out, the medium wave emergent broadcast receives system（2）Receive and respond institute
It states medium wave emergent broadcast and sends system（1）Emergency information and control instruction；The medium wave emergent broadcast sends system（1）Including
One emergency information distribution platform（101）, a medium wave emergent broadcast coding demodulator（102）With a medium wave broadcast broadcasting station transmitter
（103）；The emergency information distribution platform（101）Mode receives emergency information posting request and needs to issue by radio communication
The information content, then convert thereof into emergency information and control instruction, and send the medium wave emergent broadcast coding demodulator to
（102）；The medium wave emergent broadcast coding demodulator（102）By the emergency information distribution platform（101）What is transmitted answers
Anxious information and control instruction carry out coded modulation, and are overlapped to be formed for broadcast and carry number with analog audio signal
The signal of word information and analog audio information, and it is transferred to the medium wave broadcast broadcasting station transmitter（103）；The medium wave is wide
Broadcast broadcasting station transmitter（103）By the medium wave emergent broadcast coding demodulator（102）Transmit carry digital information and
System is received to the medium wave emergent broadcast by antenna after the signal modulation of analog audio information（2）Carry out medium wave broadcast hair
It send；The medium wave emergent broadcast receives system（2）Demodulator is decoded including a medium wave emergent broadcast（201）It is rung with an emergency information
Answer equipment（202）, the medium wave emergent broadcast decoding demodulator（201）It is sent out by the medium wave broadcast radio station for receiving and demodulating
Penetrate machine（103）The emergency information and control instruction sent, and control the emergency information response apparatus（202）Display plays
Demodulate the information come.
2. medium wave emergency broadcase system according to claim 1, it is characterised in that：The emergency information distribution platform
（101）In include address database, instruction database and emergency information database.
3. medium wave emergency broadcase system according to claim 1, it is characterised in that：The emergency information response apparatus
（202）Include but are not limited to display screen, sound equipment or loudspeaker.
4. medium wave emergency broadcase system according to claim 1, it is characterised in that：The communication include but
It is not limited only to network mode, liaison mode or short message mode.
5. medium wave emergency broadcase system according to claim 1, it is characterised in that：The medium wave emergent broadcast receives system
（2）With particular address code, it can receive and respond the medium wave emergent broadcast transmission system（1）Institute's photos and sending messages and control refer to
It enables.
6. medium wave emergency broadcase system according to claim 5, it is characterised in that：The medium wave emergent broadcast sends system
（1）System can be received to multiple medium wave emergent broadcasts（2）It is broadcasted into row information and carries out remote control.
7. medium wave emergency broadcase system according to claim 5, it is characterised in that：The medium wave emergent broadcast sends system
（1）System can be received to the specific medium wave emergent broadcast（2）It is broadcasted into row information and carries out remote control.
8. medium wave emergency broadcase system according to claim 1, it is characterised in that：The medium wave emergent broadcast sends system
（1）The frequency band for transmitting digital signal is within 100Hz.
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| CN201610213777.5A CN105656583B (en) | 2016-04-08 | 2016-04-08 | A kind of medium wave emergency broadcase system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610213777.5A CN105656583B (en) | 2016-04-08 | 2016-04-08 | A kind of medium wave emergency broadcase system |
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| CN105656583B true CN105656583B (en) | 2018-08-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108810185B (en) * | 2018-06-01 | 2021-08-24 | 镇江乾坤传媒科技有限公司 | Distribution and addressing coding method for data transmission under digital medium wave channel |
| CN109787700A (en) * | 2019-01-28 | 2019-05-21 | 重庆邮电大学 | A kind of public's emergency information dissemination method and system |
| CN112104991A (en) * | 2019-06-18 | 2020-12-18 | 深圳市振瀚信息技术有限公司 | Emergency communication network |
| CN116155425B (en) * | 2023-04-23 | 2023-07-04 | 成都德芯数字科技股份有限公司 | Instruction sound eliminating method and system for medium wave emergency broadcast |
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| CN102594474B (en) * | 2011-01-10 | 2016-05-11 | 国家广播电影电视总局广播科学研究院 | Realize the system and method for amplitude modulation medium-wave urgent broadcast |
| US8965268B2 (en) * | 2012-02-14 | 2015-02-24 | Abroadcasting Company | Broadcasting and receiving emergency alerts |
| CN103138861A (en) * | 2013-03-12 | 2013-06-05 | 苏州东奇信息科技有限公司 | Emergency broadcasting system based on digital broadcasting |
| CN103501211A (en) * | 2013-10-08 | 2014-01-08 | 苏州东奇信息科技股份有限公司 | Composite modulation system compatible with medium-wave analogue amplitude modulation (AM) broadcast |
| CN104581206A (en) * | 2013-10-23 | 2015-04-29 | 北京海格神舟通信科技有限公司 | Sound carrier coding-decoding and modulating-demodulating module |
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