CN105656583A - Medium-wave emergency broadcasting system - Google Patents
Medium-wave emergency broadcasting system Download PDFInfo
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- CN105656583A CN105656583A CN201610213777.5A CN201610213777A CN105656583A CN 105656583 A CN105656583 A CN 105656583A CN 201610213777 A CN201610213777 A CN 201610213777A CN 105656583 A CN105656583 A CN 105656583A
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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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Abstract
The invention discloses a medium-wave emergency broadcasting system. The medium-wave emergency broadcasting system comprises a medium-wave emergency broadcast sending system and a medium-wave emergency broadcast receiving system, wherein the medium-wave emergency broadcast sending system comprises a medium-wave broadcast station emitter, a medium-wave emergency broadcast encoding modulator and an emergency information release platform; the medium-wave emergency broadcast receiving system comprises a medium-wave emergency broadcast decoding modulator and emergency information response equipment; the sending system performs communications with the receiving system through medium-wave broadcasts, and can singly or simultaneously send an analog broadcast signal and a digital broadcast signal, and the digital broadcast signal can carry emergency information and a control instruction; the receiving system receives and responds to the emergency information and the control instruction, which are sent by the sending system. The system can not only achieve simultaneous playing of an analog broadcast and a digital broadcast, but also carry and respond to the emergency information and the control instruction by the digital signal, thereby achieving large-range coverage of the emergency information, timely responding, and targeted information releasing; a novel emergency means and emergency equipment are provided for national and social emergencies.
Description
Technical field
The invention belongs to digital communicating field, relate to the implementation of a kind of medium wave emergent broadcast, utilize medium wave digital broadcast technologies to realize medium wave emergent broadcast, digital-to-analogue with the system broadcast in particular to a kind of.
Background technology
Disaster accident frequently occurs all over the world in recent years, brings very grave suffering and loss to various places government and the people. Emergent industry initially enters the sight line of people as a new industry, and this industry is new industry and the people's livelihood industry that country encourages development, has become mainstay industry in developed country. Greatly develop emergent industry and can effectively prevent and reduce the loss that disaster accident brings, be conducive to the industry restructuring of basic unit, be conducive to the market expansion of enterprise and profit to increase, be conducive to the safety and health of the public.
In China, emergent industry, as an emphasis people's livelihood industry, has been put in the middle of new national development planning. The broadcast of medium wave (MW), shortwave (SW) can efficiently realize wide area and cover, corresponding MW/SW multi-band radio cheap and simple. The Wenchuan violent earthquake of 2008 makes that disaster area interruption of optical cables, mobile phone be obstructed, TV does not work, Ministry of Civil Affairs, the four general headquarters/departments of PLA respectively promptly buying 100,000 and 170,000 radios be transferred to disaster area and Disaster Response Force, just highlighted the irreplaceable of MW/SW broadcast.
Summary of the invention
In order to meet the demand, the present invention utilizes existing analog broadcasting basis Broadcast Control facility and resource, aim to provide a kind of novel medium wave emergency broadcase system, this system is play while can realizing analog broadcasting and digital broadcasting, Emergency time is as emergent broadcast, play the effect of emergency advance warning, emergency command, stability maintenance of refuting a rumour, MMS (Multimedia Message Service) can be provided at ordinary times.
For reaching above-mentioned technical purpose and effect, the present invention is achieved through the following technical solutions:
A kind of medium wave emergency broadcase system, sent system by medium wave emergent broadcast and medium wave emergent broadcast receives system and forms, described medium wave emergent broadcast sends system and carries out digital-to-analogue with broadcasting by medium wave broadcast mode, receiving system to described medium wave emergent broadcast and carry out broadcast communication, described medium wave emergent broadcast receives emergency information and the control instruction that system receives and responds described medium wave emergent broadcast transmission system;
Described medium wave emergent broadcast sends system and includes an emergency information distribution platform, a medium wave emergent broadcast coding demodulator and a medium wave broadcast broadcasting station transmitter;Described emergency information distribution platform receives emergency information by communication and issues request and need the information content issued, then converts thereof into emergency information and control instruction, and sends described medium wave emergent broadcast coding demodulator to; Emergency information and control instruction that described emergency information distribution platform is transmitted by described medium wave emergent broadcast coding demodulator are encoded modulation, and be overlapped being formed for that broadcast and carry the signal of digital information and analog audio information with simulated audio signal, and it is transferred to described medium wave broadcast broadcasting station transmitter; Medium wave broadcast transmission is carried out by medium wave emergent broadcast reception system described in sky alignment after the signal modulation of what described medium wave emergent broadcast coding demodulator was transmitted by described medium wave broadcast broadcasting station transmitter carry digital information and analog audio information;
Described medium wave emergent broadcast receives system and includes medium wave emergent broadcast decoding demodulator and an emergency information response apparatus, described medium wave emergent broadcast decoding demodulator receives and is sent the emergency information come and control instruction by described medium wave broadcast broadcasting station transmitter, and demodulate out by these emergency informations and control instruction, described emergency information response apparatus can show or play the information demodulating out.
Further, described emergency system distribution platform includes address database, instruction database and emergency information data base.
Further, described emergency information response apparatus includes but are not limited to display screen, sound equipment or loudspeaker.
Further, described communication includes but are not limited to network mode, liaison mode or short message mode.
Further, described medium wave emergent broadcast receives system and has particular address code, can receive and respond described medium wave emergent broadcast and send institute's photos and sending messages and the control instruction of system, it is achieved remote response.
Further, multiple described medium wave emergent broadcasts reception system can be carried out information broadcast and remotely control by described medium wave emergent broadcast transmission system.
Further, specific described medium wave emergent broadcast reception system can be carried out information broadcast and remotely control by described medium wave emergent broadcast transmission system.
Further, described medium wave emergent broadcast sends system by utilizing the frequency band transmission digital signal within the untapped 100Hz of medium wave broadcast, plays realizing analog broadcasting and digital broadcasting simultaneously.
The working mechanism of the present invention is as follows:
One, medium wave emergent broadcast sends system
1) in non-emergency situation, emergency information distribution platform is in holding state, and the information that reception is new issues request and content, and medium wave emergent broadcast sends system digits broadcast channel and is in idle state, or play other digital medium informations, such as the content such as picture, word;
2) when having emergency information and emergency flight control instruction to need to send, or need to send other digital medium informations, information to be sent is encoded and modulates by medium wave emergent broadcast coding demodulator, and within the frequency band of modulation signal is placed in 100Hz, to avoid the interference to analogue audio frequency broadcast singal; And the modulation signal carrying digital information is overlapped with audio signal to be sent, form the final signal carrying digital information and analog audio information;
3) signal carrying digital information and analog audio information is broadcasted by medium wave broadcast radio station, it is achieved analog 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 opening, and medium wave emergent broadcast decoding demodulator can receive information and instruction at any time, and responds according to information content and control instruction;
2) after medium wave emergent broadcast decoding demodulator receives signal and demodulates control instruction and information, compare with the address code of self, if address code is not within the scope of information response, then medium wave emergent broadcast reception system responds, otherwise, information being responded by emergency information response apparatus, as display screen shows, sound equipment and loudspeaker play out.
Beneficial effects of the present invention is as follows:
The information medium wave emergency broadcase system of the present invention, it is possible to play while realizing the analog broadcasting of medium wave broadcast and digital broadcasting, also can realize the multimedia form information such as fixed point, directional transmissions audio frequency, text, picture. Utilize digital broadcasting simultaneously, carry out emergent broadcast at Emergency time, play the effect of emergency advance warning, emergency command, stability maintenance of refuting a rumour; Carry out the digital broadcasting of common multimedia information at ordinary times, and specific reception system can be timed the control of fixed point, having wide coverage, fast response time, the accurate feature of control, meeting an urgent need for country and society provides a kind of novel emergent means and emergency set.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after. The specific embodiment of the present invention is shown in detail in by following example and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Number in the figure illustrates: 1, medium wave emergent broadcast sends system; 101, emergency system distribution platform; 102, medium wave emergent broadcast coding demodulator; 103, medium wave broadcast broadcasting station transmitter; 2, medium wave emergent broadcast receives system; 201, medium wave emergent broadcast decoding demodulator, 202, emergency information response apparatus.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is described in detail.
Shown in Figure 1, a kind of medium wave emergency broadcase system, sent system 1 by medium wave emergent broadcast and medium wave emergent broadcast receives system 2 and forms, described medium wave emergent broadcast sends system 1 and carries out digital-to-analogue with broadcasting by medium wave broadcast mode, receiving system 2 to described medium wave emergent broadcast and carry out broadcast communication, described medium wave emergent broadcast receives emergency information and the control instruction that system 2 receives and responds described medium wave emergent broadcast transmission system 1.
Described medium wave emergent broadcast sends system 1 and includes emergency information distribution platform 101, medium wave emergent broadcast coding demodulator 102 and a medium wave broadcast broadcasting station transmitter 103; Described emergency system distribution platform 101 is containing address database, instruction database and emergency information data base, described emergency information distribution platform 101 can receive emergency information by modes such as network, phone, notes and issues request and need the information content issued, and according to these information, produce emergency information and control instruction in conjunction with its data storehouse, then these emergency informations to be sent and control instruction are sent to described medium wave emergent broadcast coding demodulator 102;Emergency information and control instruction that described emergency information distribution platform 101 is transmitted by described medium wave emergent broadcast coding demodulator 102 are encoded and modulate, modulation signal is placed in the frequency band within 100Hz, simultaneously, the digital signal modulated and simulated audio signal are superimposed by described medium wave emergent broadcast coding demodulator 102, formed for signal that is that broadcast and that carry digital information and analog audio information, and send described medium wave broadcast broadcasting station transmitter 103 to; Described medium wave broadcast broadcasting station transmitter 103 is for being modulated the signal carrying digital information and analog audio information that described medium wave emergent broadcast coding demodulator 102 transmits, and modulation signal is sent to described medium wave emergent broadcast reception system 2 by antenna, described medium wave broadcast broadcasting station transmitter 103 can directly use the transmitter that existing medium wave broadcast radio station is later.
Described medium wave emergent broadcast receives system 2 and includes one and sent, by described medium wave emergent broadcast, the medium wave emergent broadcast of the signal carrying digital information and analog audio information that system 1 sends decode demodulator 201 and for responding the emergency information response apparatus 202 of emergency information and control instruction for receiving. Described medium wave emergent broadcast decoding demodulator 201 can send the signal that system 1 sends from described medium wave emergent broadcast and demodulate simulated audio signal, also can demodulate digital signal; The emergency information demodulated and control instruction and Self address code and data base are contrasted by described medium wave emergent broadcast decoding demodulator 201, when self belonging to the address realm of needs response, described medium wave emergent broadcast decoding demodulator 201 will automatically turn on or wake up described emergency information response apparatus 202, emergency information is displayed by described emergency information response apparatus 202 or play, thus realizing the broadcast of emergency information.
Further, described medium wave emergent broadcast receives system 2 and has particular address code, can receive and respond described medium wave emergent broadcast and send institute's photos and sending messages and the control instruction of system 1, it is achieved remote response.
Further, described medium wave emergent broadcast sends system 1 can carry out information broadcast to multiple described medium wave emergent broadcasts reception system 2 and remotely control, it is also possible to specific described medium wave emergent broadcast is received system 2 and carries out information broadcast and remotely control.
System 1 is sent, it is necessary to make following deployment at described medium wave emergent broadcast:
1) described medium wave emergent broadcast transmission system 1 has the spendable frequency resource for medium wave broadcast, directly uses the frequency resource in existing medium wave broadcast radio station during deployment, it is not necessary to sends system 1 for described medium wave emergent broadcast and applies for new frequency resource;
2) described emergency system distribution platform 101 disposes address database, instruction database and emergency information data base, and is the information such as described emergency system distribution platform 101 configuration of IP address, telephone number; Described address database includes described medium wave emergent broadcast and receives the address information in system 2, described address instruction data base comprises described medium wave emergent broadcast and receives the control instruction that system 2 to respond, described emergency information data base comprises the type of emergency information and corresponding coding, improves emergent efficiency;
3) described emergency system distribution platform 101 is produced by described medium wave emergent broadcast coding demodulator 102 emergency information and control instruction are modulated, modulation signal is placed in the frequency band within 100Hz, the signal modulated by described medium wave emergent broadcast coding demodulator 102 again and simulated audio signal are superimposed, and produce to carry the signal of digital information and analog audio information;
4) signal carrying digital information and analog audio information that described medium wave emergent broadcast coding demodulator 102 produces is carried out amplitude-modulating modulation by described medium wave broadcast broadcasting station transmitter 103, is sent by antenna.
System 2 is received, it is necessary to make following deployment at medium wave emergent broadcast:
1) working frequency points of described medium wave emergent broadcast reception system 2 to be arranged in the working frequency points of described medium wave emergent broadcast transmission system 1;
2) described medium wave emergent broadcast reception system 2 has unique address code, instruction database and emergency information data base; Described unique address code is used for information of recognizing and whether instruction is sent to this medium wave emergent broadcast and receives system 2, described instruction database comprises described medium wave emergent broadcast and receives the control instruction that system 2 to respond, described emergency information data base comprises the type of emergency information and corresponding coding, improves emergent efficiency;
3) described medium wave emergent broadcast decoding demodulator 201 sends, for demodulating described medium wave emergent broadcast, the signal carrying digital information and analog audio information that system 1 sends, therefrom demodulate emergency information and control instruction, described medium wave emergent broadcast decoding demodulator 201 will demodulate emergency information and control instruction and the address code of self, instruction database and emergency information data base compare, judge whether response emergency information and control instruction, as judged result carries out emergency response for needs, then control described emergency information response apparatus 202 and respond;
4) described emergency information response apparatus 202 is for responding emergency information and the control instruction of decoding demodulator 201 demodulation of described medium wave emergent broadcast; Described 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 non-emergency situation, emergency information distribution platform is in holding state, and the information that reception is new issues request and content, and medium wave emergent broadcast sends system digits broadcast channel and is in idle state, or play other digital medium informations, such as the content such as picture, word;
2) when having emergency information and emergency flight control instruction to need to send, or need to send other digital medium informations, information to be sent is encoded and modulates by medium wave emergent broadcast coding demodulator, and within the frequency band of modulation signal is placed in 100Hz, to avoid the interference to analogue audio frequency broadcast singal; And the modulation signal carrying digital information is overlapped with audio signal to be sent, form the final signal carrying digital information and analog audio information;
3) signal carrying digital information and analog audio information is broadcasted by medium wave broadcast radio station, it is achieved analog 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 opening, and medium wave emergent broadcast decoding demodulator can receive information and instruction at any time, and responds according to information content and control instruction;
2) after medium wave emergent broadcast decoding demodulator receives signal and demodulates control instruction and information, compare with the address code of self, if address code is not within the scope of information response, then medium wave emergent broadcast reception system responds, otherwise, information being responded by emergency information response apparatus, as display screen shows, 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 described emergency system distribution platform, it is provided that the Huinong's information issuing function in non-emergency situation, in conjunction with described address database and described instruction database, in non-emergency situation, provide the digital broadcasting function of Huinong's information.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (8)
1. a medium wave emergency broadcase system, it is characterized in that: sent system (1) by medium wave emergent broadcast and medium wave emergent broadcast receives system (2) and forms, described medium wave emergent broadcast sends system (1) and carries out digital-to-analogue with broadcasting by medium wave broadcast mode, receiving system (2) to described medium wave emergent broadcast and carry out broadcast communication, described medium wave emergent broadcast receives emergency information and the control instruction that system (2) receives and responds described medium wave emergent broadcast transmission system (1); Described medium wave emergent broadcast sends system (1) and includes an emergency information distribution platform (101), medium wave emergent broadcast coding demodulator (102) and a medium wave broadcast broadcasting station transmitter (103); Described emergency information distribution platform (101) receives emergency information by communication and issues request and need the information content issued, then converts thereof into emergency information and control instruction, and sends described medium wave emergent broadcast coding demodulator (102) to; Emergency information and control instruction that described emergency information distribution platform (101) is transmitted by described medium wave emergent broadcast coding demodulator (102) are encoded modulation, and be overlapped being formed for that broadcast and carry the signal of digital information and analog audio information with simulated audio signal, and it is transferred to described medium wave broadcast broadcasting station transmitter (103); Receive system (2) by medium wave emergent broadcast described in sky alignment after the signal modulation of what described medium wave emergent broadcast coding demodulator (102) was transmitted by described medium wave broadcast broadcasting station transmitter (103) carry digital information and analog audio information and carry out medium wave broadcast transmission; Described medium wave emergent broadcast receives system (2) and includes medium wave emergent broadcast decoding demodulator (201) and an emergency information response apparatus (202), described medium wave emergent broadcast decoding demodulator (201) is sent the emergency information come and control instruction for receiving and demodulating by described medium wave broadcast broadcasting station transmitter (103), and controls the display of described emergency information response apparatus (202) or play the information demodulating out.
2. medium wave emergency broadcase system according to claim 1, it is characterised in that: described emergency system distribution platform (101) includes address database, instruction database and emergency information data base.
3. medium wave emergency broadcase system according to claim 1, it is characterised in that: described emergency information response apparatus (202) includes 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: described communication includes but are not limited to network mode, liaison mode or short message mode.
5. medium wave emergency broadcase system according to claim 1, it is characterised in that: described medium wave emergent broadcast receives system (2) and has particular address code, can receive and respond described medium wave emergent broadcast and send institute's photos and sending messages and the control instruction of system (1).
6. medium wave emergency broadcase system according to claim 5, it is characterised in that: described medium wave emergent broadcast sends system (1) can carry out information broadcast to multiple described medium wave emergent broadcasts reception system (2) and remotely control.
7. medium wave emergency broadcase system according to claim 5, it is characterised in that: described medium wave emergent broadcast sends system (1) can carry out information broadcast to specific described medium wave emergent broadcast reception system (2) and remotely control.
8. medium wave emergency broadcase system according to claim 1, it is characterised in that: it is within 100Hz that described medium wave emergent broadcast sends the frequency band of system (1) transmission digital signal.
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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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| CN108810185A (en) * | 2018-06-01 | 2018-11-13 | 镇江乾坤传媒科技有限公司 | Distribution, the addressing coding method of data transmission under a kind of number 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 |
| CN116155425A (en) * | 2023-04-23 | 2023-05-23 | 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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| CN108810185A (en) * | 2018-06-01 | 2018-11-13 | 镇江乾坤传媒科技有限公司 | Distribution, the addressing coding method of data transmission under a kind of number medium wave channel |
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| CN105656583B (en) | 2018-08-31 |
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