CN105656579A - Multifunctional broadcast controller based on RDS - Google Patents
Multifunctional broadcast controller based on RDS Download PDFInfo
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- CN105656579A CN105656579A CN201610096427.5A CN201610096427A CN105656579A CN 105656579 A CN105656579 A CN 105656579A CN 201610096427 A CN201610096427 A CN 201610096427A CN 105656579 A CN105656579 A CN 105656579A
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- 239000011159 matrix material Substances 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
The invention relates to the technical field of computer networks, and provides a multifunctional broadcast controller based on RDS, to solve the problems of complicated connection between front-end devices of a conventional intelligent broadcast system and high difficulty in system application and maintenance. The controller comprises an encoding control module, a frequency modulation module, a network management module, a telephone message module, an audio matrix module, an encryption module and a display control module. According to the technical scheme provided by the invention, such modules as encoding control, frequency modulation, telephone message, network management, encryption, audio matrix and display control are integrated, and a system is more convenient to apply and maintain.
Description
Technical field
The invention belongs to technical field of the computer network, particularly to a kind of Multifunctional broadcasting controller based on RDS.
Background technology
RDS (RadioDataSystem, radio data system), is the technical standard EBU3244 proposed in 1984 by EBU (EuropeBroadcastingUnion, European Broadcasting Union). This technology utilizes the bandwidth of existing frequency modulation broadcasting, in the subcarrier data signal modulation of 57KHz to audio program frequency range, RDS will be made to receive terminal and can receive audio program and data message simultaneously.
Traditional broadcast network is unidirectional passive radio network, utilizes RDS technology, it is possible to from front end system broadcast terminal equipment is controlled and manages, thus building the novel intelligent broadcast system with certain controlled ability.
Intelligent broadcast system on current market, headend equipment kind is many, connects complexity, difficult management, and construction cost is higher, is unfavorable for the application of intelligent broadcast system and universal. The headend equipment of common intelligent broadcast system is at least broadcasted the multiple professional equipments such as device, note Broadcast Control device, data converter, switch formed by encoder, manipulator, phone, connection between these equipment is complicated, need to be safeguarded by professional and technical personnel, add difficulty for system application and maintenance.
Summary of the invention
[solving the technical problem that]
It is an object of the invention to provide a kind of Multifunctional broadcasting controller based on RDS, to solve the problem that between the headend equipment of current intelligent broadcast system, connection is complicated, system is applied and maintenance difficulties is bigger.
[technical scheme]
The present invention is achieved by the following technical solutions.
The present invention relates to a kind of Multifunctional broadcasting controller based on RDS, it includes coding control module, frequency modulation modulation module, webmaster module, mobile phone short message module, Audio Matrix module, encrypting module, display control module,
Described coding control module is configured to: data command is carried out RDS coding; When coding control module receives the audio frequency output order of host computer, display control module or mobile phone short message module, Audio Matrix is switched to appointment source of sound according to command content and exports by described Audio Matrix module;
Described Audio Matrix module is configured to: receive the input of multichannel source of sound; Switching sound source input port; According to command content, Audio Matrix is switched to appointment source of sound to export;
Described frequency modulation modulation module is configured to: the audio signal export Audio Matrix module and the control instruction of coding control module output carry out RDS and modulate assigned frequency and export;
Described webmaster module is configured to: the network interface being connected with coding control module is managed.
As one preferred embodiment, described RDS that data command is carried out encodes based on following agreement:
Adopt without response one-way communication pattern, it is long that one frame data comprise 16 byte fixed packet, including 1 byte of sync head, 1 byte address information, 1 byte data command information, 6 byte parameter informations, 2 byte check informations, described synchronous head is fixed as 0xA5, and described address information arranges in front, the posterior order of low byte according to high byte.
As another preferred embodiment, described mobile phone short message module is integrated with telephone security and broadcasts the function of device and note presentation controller, it is configured to: incoming call is authenticated and security control, and by legitimate phone or after note is converted to audio signal output to Audio Matrix, carry out output control via coding control module.
As another preferred embodiment, described display control module comprises LCD MODULE and key control module.
As another preferred embodiment, also include the power module that power supply input and power protection are provided for complete machine.
As another preferred embodiment, the type of the source of sound input that described Audio Matrix module receives includes higher level's source of sound, FM source of sound, MP3 source of sound, circuit input, microphone, phone.
[beneficial effect]
The technical scheme that the present invention proposes has the advantages that
Multifunctional broadcasting controller based on RDS provided by the invention is integrated with multiple modules such as coding-control, frequency modulation modulation, mobile phone short message, webmaster, encryption, Audio Matrix, display control, and system is applied and safeguards more convenient.
Accompanying drawing explanation
The structural principle block diagram of the Multifunctional broadcasting controller of the RDS that Fig. 1 provides for embodiments of the invention one.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the specific embodiment of the present invention will be carried out clear, complete description below.
Embodiment one
The structural principle block diagram of the Multifunctional broadcasting controller of the RDS that Fig. 1 provides for the embodiment of the present invention one. As it is shown in figure 1, this Multifunctional broadcasting controller includes main control module, frequency modulation modulation module, webmaster module, mobile phone short message module, encrypting module, display control module, wherein main control module includes coding control module and Audio Matrix module. Main control module is connected with host computer by webmaster module.
In the present embodiment, coding control module is the main logic unit of whole equipment, is responsible for tissue and coordinates the relation of each intermodule, for the core of Multifunctional broadcasting controller. Specifically, coding control module realizes the coding of the RDS to data command and the control to Audio Matrix, then the RDS subcarrier signal mixing designated tone source signal after coding is exported frequency modulation modulation module and is modulated and transmits. RDS control command code follows following agreement:
(1) adopting without response one-way communication pattern, it is long that frame data comprise 16Byte fixed packet.
(2) Frame composition structure: synchronize (1Byte)+address (6Byte)+instruction (1Byte)+parameter (6Byte)+verification (2Byte). Concrete form is as shown in table 1.
Table 1 Frame composition structure
(3) byte transmission pattern: baud rate 1200bps, 8 bit data positions, check bit (nothing), stop position: 1.
(4) synchronous head: 0xA5 (fixes), the beginning of frame data, will obtain sync byte accurately, need at least 16 bytes of buffer memory, after receiving first packet header 0xA5, carry out frame length counting, harvest check byte, if verification is correct, then it represents that receive a frame just data.
(5) address: adopt 6 byte lengths, address high byte front, address low byte after successively order arrangement, as shown in table 2.
Table 2 address structure
(6) the Cmd order in Frame is concrete as shown in table 3.
Cmd order in table 3 Frame
In the present embodiment, Audio Matrix module is source of sound input and selects module, supports the input of multichannel source of sound and switching. The output of Audio Matrix is by the control of coding control module. When main control module receives the instruction of host computer, display control module, phone module, according to command content, Audio Matrix can be switched to appointment source of sound and export.
In the present embodiment, frequency modulation modulation module carries out RDS for the control instruction that signal output, audio signal that Audio Matrix export by primary responsibility and coding control module export and modulates assigned frequency and export. This module can carry out serial communication with main control module. By serial communication, main control module can set that the frequency that frequency modulation is modulated, and module can receive the control instruction from main control module.
In the present embodiment, mobile phone short message module is integrated with telephone security and broadcasts the function of device and note presentation controller, incoming call is authenticated and security control, and by legitimate phone or after note is converted to audio signal output to Audio Matrix, carry out output control via coding control module.
In the present embodiment, data command is encrypted by encrypting module primary responsibility, it is ensured that the safety of data, it is prevented that illegal source of sound and instruction utilize existing broadcast system to carry out unlawful activities. This module can use third party's encrypting module to realize.
In the present embodiment, power module provides power supply input and power protection for complete machine.
In the present embodiment, display control module comprises LCD MODULE and key control module, for user's interactive controlling. LCD MODULE supports Chinese font; Key control module supports numeric keypad, directionkeys, acknowledgement key, return key and relevant shortcut key.
In the present embodiment, host computer is connected by webmaster module with main control module, and under the control of webmaster module, host computer sends control instruction or receives the RDS passback message that main control module sends.
(1) main control module (including coding control module and Audio Matrix module) realize logic.
1) hardware initialization
2) start data initialization
3) system break initializes
4) major cycle is entered
5) display control module data command is processed
6) host computer data command is processed
7) phone module data command is processed
8), when having broadcast at the corresponding levels or flow process broadcast at the corresponding levels or phone emergent broadcast, carrier wave instruction is cycled through
9) flow process is opened, and does not have the corresponding levels or higher level's broadcast, then automatically play
10), when receiving higher level's RDS instruction, forwarding higher level's broadcast state is switched to
11) the 4th is forwarded to) step.
By above-mentioned enforcement step it can be seen that the control instruction of each passage can be scanned and perform by main control module.
(2) modulation module realize logic:
1) system initialization
2) major cycle is entered
3) if main control module has control data, then carry out processing (such as arranging modulating frequency)
4) RDS data buffer zone is read
5) if there being data, then RDS subcarrier modulation is carried out
6) modulation signal is sent
7) RDS sends and interrupts detection
8) 2 are jumped to).
The RDS data of master board will preserve to RDS data buffer zone, and carry out status indication.
(3) mobile phone short message module realize logic:
1) module initialization
2) master control module controls data (such as white list controls operation) are processed
3) jingle bell detection
4) auto-pickup when number of rings is more than 3
5) whether checking caller ID is in phone white list
6) if caller ID is in white list, 8 are gone to)
7) if caller ID is not in white list, hang up after voice message; Go to 2);
8) request incoming call user inputs licencing key;
9) if licencing key coupling, 11 are gone to);
10) if licencing key does not mate, hang up after voice message; Go to 2);
11) connect, and incoming call call voice signal is forwarded to the Audio Matrix of main control module;
12) use serial communication notice main control module switching sound source, and terminal is assigned start-up command;
13), after user is hung up, notify main control module switching sound source, and terminal is assigned shutdown command;
14) 2 are gone to)
As can be seen from the above embodiments, the Multifunctional broadcasting controller based on RDS that the embodiment of the present invention provides is integrated with multiple modules such as coding-control, frequency modulation modulation, mobile phone short message, webmaster, encryption, Audio Matrix, display control, and system is applied and safeguards more convenient.
It is to be appreciated that the embodiment of foregoing description is a part of embodiment of the present invention, rather than whole embodiment, neither limitation of the present invention. Based on embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into protection scope of the present invention.
Claims (6)
1. the Multifunctional broadcasting controller based on RDS, it is characterised in that include coding control module, frequency modulation modulation module, webmaster module, mobile phone short message module, Audio Matrix module, encrypting module, display control module,
Described coding control module is configured to: data command is carried out RDS coding; When coding control module receives the audio frequency output order of host computer, display control module or mobile phone short message module, Audio Matrix is switched to appointment source of sound according to command content and exports by described Audio Matrix module;
Described Audio Matrix module is configured to: receive the input of multichannel source of sound; Switching sound source input port; According to command content, Audio Matrix is switched to appointment source of sound to export;
Described frequency modulation modulation module is configured to: the audio signal export Audio Matrix module and the control instruction of coding control module output are modulated assigned frequency by RDS and exported;
Described webmaster module is configured to: the network interface being connected with coding control module is managed.
2. the Multifunctional broadcasting controller based on RDS according to claim 1, it is characterised in that described RDS that data command is carried out encodes based on following agreement:
Adopt without response one-way communication pattern, it is long that one frame data comprise 16 byte fixed packet, including 1 byte of sync head, 1 byte address information, 1 byte data command information, 6 byte parameter informations, 2 byte check informations, described synchronous head is fixed as 0xA5, and described address information arranges in front, the posterior order of low byte according to high byte.
3. the Multifunctional broadcasting controller based on RDS according to claim 1, it is characterized in that described mobile phone short message module is integrated with telephone security and broadcasts the function of device and note presentation controller, it is configured to: incoming call is authenticated and security control, and by legitimate phone or after note is converted to audio signal output to Audio Matrix, carry out output control via coding control module.
4. the Multifunctional broadcasting controller based on RDS according to claim 1, it is characterised in that described display control module comprises LCD MODULE and key control module.
5. the Multifunctional broadcasting controller based on RDS according to claim 1, it is characterised in that also include the power module that power supply input and power protection are provided for complete machine.
6. the Multifunctional broadcasting controller based on RDS according to claim 1, it is characterised in that the type of the source of sound input that described Audio Matrix module receives includes higher level's source of sound, FM source of sound, MP3 source of sound, circuit input, microphone, phone.
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| CN201610096427.5A CN105656579B (en) | 2016-02-22 | 2016-02-22 | Multifunctional broadcasting controller based on RDS |
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| CN201610096427.5A CN105656579B (en) | 2016-02-22 | 2016-02-22 | Multifunctional broadcasting controller based on RDS |
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| CN105656579B CN105656579B (en) | 2018-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112584324A (en) * | 2020-11-19 | 2021-03-30 | 福建新大陆通信科技股份有限公司 | Emergency broadcast multi-path telephone short message access broadcasting method |
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| US7917130B1 (en) * | 2003-03-21 | 2011-03-29 | Stratosaudio, Inc. | Broadcast response method and system |
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Application publication date: 20160608 Assignee: Sichuan Changhong Xinwang Technology Co.,Ltd. Assignor: SICHUAN CHANGHONG ELECTRIC Co.,Ltd. Contract record no.: X2023980043949 Denomination of invention: A multifunctional broadcasting controller based on RDS Granted publication date: 20180427 License type: Common License Record date: 20231030 |
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