CN103974199B - A kind of broadcast system for issuing emergency information - Google Patents

Abstract

The invention discloses a broadcast system capable of publishing emergency information, which belongs to the field of communication technology and solves the problem that emergency information cannot be released anytime and anywhere in the existing broadcast system. One embodiment includes multiple mobile terminals, an audio workstation, and a Addressing and encoding controller, N telephone broadcast controllers and their correspondingly connected secondary TS encoders, N SMS broadcast controllers and their correspondingly connected secondary TS encoders, multiplexers, demultiplexers, multiple broadcasting The receiving terminal and its corresponding connected speakers, wherein the short message player controller includes a wireless communication module, an instruction processing unit, a storage module, a timing module, a text/audio conversion module and a rights management module. The invention enables staff to release emergency information anytime and anywhere through the telephone broadcast controller and the short message broadcast controller, thereby improving the flexibility of the broadcasting system.

Description

A broadcasting system capable of distributing emergency information

technical field

The invention belongs to the technical field of communication, and specifically relates to a broadcast system capable of releasing emergency information for emergencies.

Background technique

China is a large country with a population of 1.3 billion, of which the rural population is 940 million, accounting for 70% of the country's total population, and the rural land area accounts for about 60% of the country's total territory. The rural area is very vast in my country. Therefore, how to carry out mass cultural propaganda in rural areas to meet the growing needs of the rural masses in spiritual and cultural life and knowledge acquisition has become very important.

As one of the most important communication media, rural broadcasting can disseminate information, supervise public opinion, provide entertainment and so on. In the late 1990s, with the rise of cable TV networks, radio and television departments around the world established their own cable TV networks, and quickly extended to vast rural areas. With more than 20 years of development of radio and television and cable television, a radio and television network with large coverage and mature technology has been gradually established. The development of rural radio at the present stage is based on the existing mature radio and television network as the signal transmission carrier to realize the double entry of radio and television, which has become the most effective means and method of transmitting information at present and in the future.

In recent years, natural disasters have occurred frequently all over the world, posing a serious threat to human survival and causing serious losses to social wealth. The Wenchuan Earthquake in 2008, the freezing rain in Guizhou, the Yushu Earthquake in 2010, and the Zhouqu mudslides brought heavy losses to the people in the disaster areas. The communication network base stations and equipment of the operators were severely damaged. It is a remote area, which brings great inconvenience to the rescue and aggravates the damage caused by the disaster. Shortwave broadcasting system as a traditional means of communication. With its unique characteristics of strong anti-destruction ability, long communication distance, convenient installation, quick response, and low operating cost, it has established its position in the emergency communication system, and this fast-response, comprehensive and efficient broadcast system can greatly improve Therefore, carrying out research on emergency broadcasting systems is not only an urgent need for the establishment of a social early warning system, but also for the emergency management of national public emergencies.

The emergency information released by the general broadcasting system is mainly broadcasted by the announcer in the studio live broadcast or recorded (recorded broadcast). However, in an emergency, there may be no qualified announcer temporarily, or no suitable studio, which directly leads to the inability to broadcast emergency information and timely emergency rescue and disaster relief. Therefore, we urgently need to improve the existing broadcasting system, so that the staff can release corresponding emergency information anytime and anywhere in an emergency.

Contents of the invention

Aiming at the deficiency that emergency information cannot be released anytime and anywhere in the prior art, the present invention provides a broadcasting system that facilitates staff to release emergency information anytime and anywhere in an emergency, and personnel with corresponding publishing authority can broadcast relevant information through mobile phones emergency information.

For realizing above-mentioned technical purpose, the technical scheme that the present invention adopts is as follows:

A broadcasting system capable of distributing emergency information, including:

At least one mobile terminal, used to send instructions and emergency information; the emergency information includes voice information and text information;

An audio workstation, which broadcasts audio information on the spot by the announcer according to the instructions sent by the mobile terminal, and the audio information is processed by the mixer and sent to the main TS encoder for encoding;

An addressable encoding controller, which generates signaling according to the instructions sent by the mobile terminal and sends it to the broadcast signaling TS encoder for encoding, which is used to control partition, fixed-point, manual or automatic addressing broadcast;

At least one telephone broadcast controller and its correspondingly connected sub-TS encoder, the telephone broadcast controller processes the voice information and outputs audio information according to the instructions sent by the mobile terminal, and the audio information is encoded by the sub-TS encoder;

At least one short message broadcast controller and its correspondingly connected secondary TS encoder, the short message broadcast controller processes the text information and outputs audio information according to the instruction sent by the mobile terminal, and the audio information is encoded by the secondary TS encoder;

A multiplexer, which combines the sub-signals output by the main TS encoder, broadcast signaling TS encoder, and secondary TS encoder through the multiplexer to generate a multiplexed signal and sends it to the network; a demultiplexer, which combines Demultiplexing the multiplexed signals in the network;

At least one broadcast receiving terminal and its correspondingly connected loudspeaker, the broadcast receiving terminal receives the demultiplexed signal and restores it into an audio signal, and plays sound through the loudspeaker.

Further, the short message broadcast controller and the telephone broadcast controller both include:

The wireless communication module, which has a unified access number, is used to establish a connection with the mobile terminal and receive instructions and emergency information sent by the mobile terminal;

An instruction processing unit, which is used to analyze the instruction, judge the instruction function and the emergency information type;

a storage module for storing text/audio messages to be sent or sent;

Timing module, which provides clock information for timing playback of audio information;

The short message player controller also includes a text/audio conversion module, which can convert text information into audio information.

Further, the short message broadcast controller and the telephone broadcast controller also include an authority management module, which is used to verify whether the mobile terminal has the authority to send instructions and emergency information, and to add, modify or cancel the mobile terminal to send instructions and emergency information. Access to Information.

Furthermore, establishing a connection between the mobile terminal and the wireless communication module includes the following steps:

A. Dial the preset unified access number in the wireless communication module through any mobile terminal, and send a channel establishment request to the wireless communication module. legal authority to the information;

B. If the mobile terminal has legal authority, then return the confirmation request signal to the mobile terminal, and skip to step C; if there is no legal authority, then return the no-authority signal to the mobile terminal;

C, judging whether the confirmation request signal is the first confirmation request signal received by the mobile terminal, if so, the mobile terminal establishes a channel with the wireless communication module, the wireless communication module returns the channel establishment success message, and jumps to step D; if not, The mobile terminal temporarily does not establish a channel with the corresponding wireless communication module;

D. After the mobile terminal receives the channel establishment success message, it sends instructions and emergency information to the wireless communication module. After the instructions and emergency information are sent, the corresponding wireless communication module returns a receipt confirmation message to the mobile terminal.

Compared with the prior art, the present invention adds a telephone broadcast controller and a short message broadcast controller, wherein the mobile terminal can directly broadcast emergency messages through the telephone broadcast controller, and the short message broadcast controller can convert the content of the sent short message into audio information for further processing. Broadcasting, which greatly facilitates the staff to release emergency information anytime and anywhere in an emergency, and improves the flexibility of the broadcasting system; at the same time, the staff must have the corresponding release authority, so that the emergency information they release can be broadcasted, which ensures that the broadcasting system The safety of releasing emergency information; through the storage module, the emergency information sent can be recorded for future reference, and the emergency information to be released can also be stored for timing playback.

Description of drawings

Fig. 1 is the structural representation of the broadcasting system of the present invention;

Fig. 2 is a structural schematic diagram of the telephone broadcast controller;

Fig. 3 is the structural representation of short message player controller;

Fig. 4 is a schematic flow chart of establishing a channel between a mobile terminal and a wireless communication module.

Detailed ways

In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in the embodiment shown in Figure 1, a broadcast system that can issue emergency information includes multiple mobile terminals 1, an audio workstation 21, an addressable code controller 31, N telephone broadcast controllers 41 and their corresponding The connected N secondary TS encoders 42, N short message broadcast controllers 51 and their corresponding connected N secondary TS encoders 52, multiplexer 6, demultiplexer 7, multiple broadcast receiving terminals 8 and their corresponding Connected speakers9.

The mobile terminal 1 is used to send instructions and emergency information. The instructions can be voice instructions sent to the audio workstation 21 or the telephone broadcast controller 41, or sent to the audio workstation 21, the addressable code controller 31, and the telephone broadcast controller. 41 or the encoded instructions of the short message player controller 51, the emergency information can be voice information or text information.

The audio workstation 21 broadcasts the audio information on the spot by the broadcaster according to the instructions sent by the mobile terminal 1. The broadcaster can also broadcast the audio information regularly according to the instructions. The broadcasted audio information is processed by the mixer 22 and then sent to the main TS encoder 23 for encoding.

The addressable encoding controller 31 generates signaling according to the received instruction, and then sends it to the broadcast signaling TS encoder 32 for encoding, which is used for block, partition, fixed-point, manual or automatic addressing broadcast.

The telephone broadcast controller 41 processes the voice information according to the instruction sent by the mobile terminal 1 and outputs the audio information, and then encodes it through the corresponding secondary TS encoder 42, while the short message broadcast controller 51 processes the text information according to the instruction and outputs the audio information , the audio information is encoded by the corresponding sub-TS encoder 52.

The multiplexer 6 combines the encoded sub-signals output by the main TS encoder 23, the broadcast signaling TS encoder 32, and each sub-TS encoder 42, 52 to generate a multiplexed signal, which can be multiplexed with the TV program TS stream After use, it will be sent to the digital village-to-village comprehensive broadcasting information system engineering network (DTMB standard).

The demultiplexer 7 demultiplexes the multiplexed signal, and the broadcast receiving terminal 8 recovers the demultiplexed signal into an audio signal, and plays the sound through the speaker 9 corresponding to the broadcast receiving terminal 8 .

As shown in Figure 2, the telephone broadcast controller 41 may include the following modules or units: a wireless communication module 411 with a unified access number, which is used to establish a channel connection with the mobile terminal 1 and receive instructions and emergency information sent by the mobile terminal 1, If the broadcasting area is relatively large, a unified access number can also be set in blocks or sub-areas, which can realize the distributed control of emergency information broadcasting; the instruction processing unit 412 for parsing instructions is used to judge the instruction function and emergency information type. The information types are mainly voice information, text information, etc.; the storage module 413 for saving the text/audio information to be sent or sent; the timing module 414 for providing clock information for timing playback of audio information.

Considering the safety of the broadcasting system, a rights management module 415 is also provided, which is used to judge whether the received instructions and emergency information are legal or whether the mobile terminal 1 has publishing rights, and the rights management module 415 can also make decisions according to the instructions. Add, modify or cancel the authority of a mobile terminal to release emergency information.

Both the audio workstation 21 and the addressable code controller 31 can adopt the structure of the telephone play controller 41 .

As shown in Figure 3, short message broadcast controller 51 is similar to telephone broadcast controller 41 structures, except comprising wireless communication module 511, instruction processing unit 512, storage module 513, timing module 514 and authority management module 515, also includes text/ Audio conversion module 516, which can convert text information such as short messages into audio information.

If the emergency information type is text information, the storage module 513 corresponding to the short message broadcast controller 51 will store the audio information of the text information and its conversion; if it is voice information, the storage module 413 corresponding to the telephone broadcast controller 41 will store the voice information to store. If the emergency information needs to be played regularly, taking the telephone broadcast controller as an example, the storage module 413 can play the function of buffering the emergency information, combined with the timing module 414 to realize the regular playback function.

If the above-mentioned instruction is a voice instruction, for the instruction processing unit of the receiving end (audio workstation 21, addressable code controller 31, telephone broadcast controller 41 and short message broadcast controller 51), it is obvious through intelligent voice recognition It is easy to increase the system cost, and the recognition rate of existing voice recognition software is difficult to guarantee. Therefore, for voice commands, it is best for the receiving end to have staff to issue emergency information directly according to the voice command; when the command is a coded command, the receiving end The set command processing unit is much easier to process. The coded command here includes at least the number of mobile terminal 1, the type of emergency information (voice information, text information or others), the address of emergency information (the address pointed to by emergency information storage), and the release status. Request (timely or timing, timing) and other field content, the instruction processing unit can "cut" the coding instruction, extract the field information of each part, and then assign the necessary field content to the corresponding module/unit, such as emergency information type When it is text information, the text/audio conversion module 516 in the short message player controller 51 is required to convert the text information into audio information. If the release status request is regularly issued, it is necessary to obtain the timing time and send it to the timing module 514 performs timing, and at the same time, the audio information is sent to the storage module 514 for storage, and the audio information in the storage module 514 is sent out after the timing time is over.

As shown in Figure 4, when the mobile terminal 1 releases emergency information, it first needs to establish a channel connection with the wireless communication module 511 of the receiving end (taking the short message broadcast controller as an example), which specifically includes the following steps:

(1) Any mobile terminal 1 dials the preset unified access number in the wireless communication module 511 to send a channel establishment request to the wireless communication module 511. After the wireless communication module 511 receives the request, the authority management module 516 determines whether the mobile terminal 1 Whether it has the legal authority to issue emergency information. When the access number is uniformly preset by region, the mobile terminal 1 can choose to dial locally or across regions.

(2) If the mobile terminal 1 has legal authority, return the confirmation request signal to the mobile terminal 1, and skip to step (3); if there is no legal authority, return the no-authority signal to the mobile terminal 1. In order to avoid frequent malicious channel establishment requests, when the wireless communication module 511 determines that the mobile terminal 1 has no legal authority, it may not return any information, so as to avoid wasting network resources and exposing information such as location.

(3) Judging whether the confirmation request signal is the first confirmation request signal received by the mobile terminal 1, if so, the mobile terminal 1 establishes a channel with the wireless communication module 511, and the wireless communication module 511 returns the channel establishment success message, and skips to step (4); If not, the mobile terminal 1 does not establish a channel with the corresponding wireless communication module 511 temporarily. The special situation here is that, for example, the first wireless communication module 511 that sent the confirmation request signal did not successfully establish a channel with the mobile terminal 1, that is, the mobile terminal 1 did not receive the channel establishment success returned by the wireless communication module 511 within a limited time. information, then the mobile terminal 1 needs to preferentially establish a channel connection with the second wireless communication module 511 that returns the confirmation request signal, and so on.

(4) After the mobile terminal 1 receives the channel establishment success message, it sends instructions and emergency information to the wireless communication module 511 , and after the instructions and emergency information are sent, the corresponding wireless communication module 511 returns a reception completion confirmation message to the mobile terminal 1 .

The above process of establishing a channel ensures that the broadcasting system can release emergency information efficiently and at the same time ensure the security of the channel connection.

The broadcast system capable of distributing emergency information provided by the present invention has been introduced in detail above. The description of specific embodiments is only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (2)

1. a kind of broadcast system for issuing emergency information, which is characterized in that including：

At least one mobile terminal, for sending instruction and emergency information；The emergency information includes voice messaging and text envelope Breath；

One audio workstation broadcasts audio-frequency information according to the instruction that mobile terminal is sent by announcer scene, audio letter Breath is sent to main TS encoders after sound console is handled and is encoded；

One addressable coding controller, the instruction sent according to mobile terminal generate signaling and are sent to broadcast signaling TS and compile Code device is encoded, for control partition, manually or automatically fixed point, addressable broadcast；

At least one phone Broadcast Control device and its secondary TS encoders being correspondingly connected with, the phone Broadcast Control device are sent according to mobile terminal Instruction handle the voice messaging and export audio-frequency information, which is encoded by secondary TS encoders；

At least one short message Broadcast Control device and its secondary TS encoders being correspondingly connected with, the short message Broadcast Control device are sent according to mobile terminal Instruction handle the text message and export audio-frequency information, which is encoded by secondary TS encoders；

Multiplexer passes through the subsignal of the main TS encoders, broadcast signaling TS encoders and secondary TS encoder outputs Multiplexer, which merges, to be generated multiplexed signals and is sent in network；Demultiplexer demultiplexes the multiplexed signals in network；

At least one broadcast receiving apparatus and its loud speaker being correspondingly connected with, the broadcast receiving apparatus receive the letter after demultiplexing Number and restore it into audio signal, sound is played by loud speaker；

The short message Broadcast Control device and phone Broadcast Control device include：

With unified access code, mobile terminal hair is connected and receives for being established with mobile terminal for wireless communication module The instruction gone out and emergency information；

Instruction process unit is used for analysis instruction, decision instruction function and emergency information type；

Memory module is used to preserve the text/audio information that will be sent or sent；

Timing module provides clock information, is played for the timing of audio-frequency information；

The short message Broadcast Control device further includes text/audio modular converter, can text message be converted to audio-frequency information；

The short message Broadcast Control device and phone Broadcast Control device further include and have permission management module, are used to verify whether mobile terminal has It sends the permission of instruction and emergency information and increases, changes or cancel the permission that mobile terminal sends instruction and emergency information.

A kind of 2. method using the broadcast system described in claim 1 for issuing emergency information, which is characterized in that the shifting Dynamic foundation connection between terminal and wireless communication module includes the following steps：

A, preset universal access number in wireless communication module is dialed by any one mobile terminal, and to the wireless communication Module, which is sent out, establishes channel request, after wireless communication module receives request, whether judges mobile terminal by authority management module Lawful authority with publication emergency information；

If B, mobile terminal has lawful authority, it will confirm that request signal returns to mobile terminal, jump to step C；If no Lack of competence signal is then returned to mobile terminal by lawful authority；

C, judge whether confirmation request signal is first confirmation request signal that mobile terminal receives, if so, it is mobile eventually Channel is then established at end with wireless communication module, and wireless communication module return establishes channel successful information, jumps to step D；If no It is that mobile terminal does not temporarily establish channel with corresponding wireless communication module；

D, mobile terminal receives establish channel successful information after, to wireless communication module send instruction and emergency information, wait to instruct After being sent completely with emergency information, confirmation message is finished receiving from corresponding wireless communication module to mobile terminal return.