CN104394165A - Emergency broadcast terminal device and information safety certificate method thereof - Google Patents
Emergency broadcast terminal device and information safety certificate method thereof Download PDFInfo
- Publication number
- CN104394165A CN104394165A CN201410735428.0A CN201410735428A CN104394165A CN 104394165 A CN104394165 A CN 104394165A CN 201410735428 A CN201410735428 A CN 201410735428A CN 104394165 A CN104394165 A CN 104394165A
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- control command
- module
- control
- emergent broadcast
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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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
Abstract
The invention discloses an emergency broadcast terminal device and an information safety certificate method thereof, the emergency broadcast terminal device including a GPRS module, a decoding main chip, a network controller, a frequency modulation broadcast receiving unit, a DVB-C signal receiving unit, a command control module, an audio output and power amplification module, has the function of information safety certificate, and can receive and analyze a remote encryption control command; the decoding main chip sends a control command to a command authentication module send and control end by a serial port, the command authentication module returns a decrypted control command after completing the analysis operation of an encrypted command, and the decoding main chip controls the working conditions of the emergency broadcast terminal according to the returned control command. The emergency broadcast terminal device and the information safety certificate method thereof overcome the safety problem of the control command of the emergency broadcast system, and has the characteristics of high safety and strong practicability.
Description
Technical field
The present invention relates to emergent broadcast technical field, be specifically related to a kind of emergent broadcast terminal equipment with control command information security certification and information safety authentication method thereof.
Background technology
Emergent broadcast is the important content of the construction of national Emergent Public Events Emergency System and System Construction of preventing and reducing natural disasters, and being authoritative channel and the important means of government's solution of emergent event emergency information issue, is the important content of town and country basic public services.The safe broadcast of emergent broadcast information is the cardinal task concerning national security and social stability, once emergent broadcast is broadcast or utilized by people by mistake, likely causes unnecessary fear or misleading.Existing broadcast system is only encrypted broadcast data, and necessary signals security authentication mechanism is lacked to emergent broadcast terminal control command, the present invention uses instruction control module to complete the information security certification of control extension instruction, solves the safety issue of emergent broadcast terminal control instruction.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, a kind of emergent broadcast terminal equipment and information safety authentication method thereof are provided, for solving the technical problem that emergent broadcast is easily broadcast or utilized caused unnecessary fear or misleading by people by mistake.
Consider the problems referred to above of prior art, according to an aspect disclosed by the invention, the present invention by the following technical solutions:
With an emergent broadcast terminal equipment for control command information security certification, it comprises:
FM broadcasting FM receiving element, for receiving control command and frequency modulation emergent broadcast data;
DVB-C signal receiving unit, for receiving the emergent broadcast RF signal meeting DVB-C standard, and converts intermediate-freuqncy signal to and exports to decoding master chip;
Decoding master chip, selects for broadcast data decoding, the parsing of control command, priority, control command performs;
GPRS module, for passing back to front-end control system by terminal equipment work state information in wireless data mode;
Network controller, for mutual with the Ethernet data of front-end control system;
Instruction control module, for control extension instruction decrypted authentication and ensure the fail safe of control command and the fail safe of emergent broadcast data playback;
Audio frequency export and power amplifier module, automatically open after receiving emergent broadcast data and master chip control under for emergent broadcast data are flowed to loudspeaker.
In order to realize the present invention better, further technical scheme is:
According to another embodiment of the invention, described FM broadcasting FM receiving element has RDS function.
According to another embodiment of the invention, described decoding master chip sends the control command of control end transmission to instruction control module by serial ports, instruction control module is to the decrypted authentication of control extension instruction, and returning the control command after deciphering to decoding master chip, decoding master chip controls the operating state of emergent broadcast terminal according to the control command returned.
According to another embodiment of the invention, described network controller carries out data interaction by MII interface and decoding master chip.
According to another embodiment of the invention, described decoding master chip comprises director data parsing module, priority is selected module and is controlled Executive Module, send into command analysis module by the data after instruction control module decrypted authentication to resolve, and select module to select the control command feeding priority after successfully resolved, priority selects module to contrast according to the priority of this control command and the current control command priority performed, select the control command that priority is higher, and import selection result into control Executive Module, handled it by control Executive Module.
The present invention can also be:
An information safety authentication method for emergent broadcast terminal equipment, it comprises:
The reception of control command and frequency modulation emergent broadcast data is completed by FM broadcasting FM receiving element;
Received by DVB-C signal receiving unit and meet the emergent broadcast RF signal of DVB-C standard, and convert intermediate-freuqncy signal to and export to decoding master chip;
Complete broadcast data decoding, the parsing of control command by decoding master chip, priority selects and control command performs;
Realize terminal equipment work state information by GPRS module and pass back to front-end control system in wireless data mode, and carry out information interaction with decoding master chip;
Undertaken alternately by the Ethernet data of network controller and front-end control system, and carry out data interaction with decoding master chip;
And the decrypted authentication work of control extension instruction is completed by instruction control module, ensure the fail safe of control command and the fail safe of emergent broadcast data playback;
After also receiving emergent broadcast data by audio frequency output with power amplifier module, under decoding master chip controls, emergent broadcast data are outputted to loudspeaker.
According to another embodiment of the invention, send into command analysis module by the data after instruction control module decrypted authentication in described decoding master chip to resolve, and select module to select the control command feeding priority after successfully resolved, priority selects module to contrast according to the priority of this control command and the current control command priority performed, select the control command that priority is higher, and import selection result into control Executive Module, handled it by control Executive Module.The invention solves the safety issue of emergency broadcase system control command, have the advantages that fail safe is high, practical.
According to another embodiment of the invention, when the control command priority ratio imported into current high when, then stop current control command to perform, the control command that response priority is high, control Executive Module to carry out demodulation code to emergent broadcast audio frequency and video according to priority selection module output control command state modulator demodulation module, decoding chip, and carry out emergent broadcast broadcast simultaneously.
Compared with prior art, one of beneficial effect of the present invention is:
A kind of emergent broadcast terminal equipment of the present invention and information safety authentication method thereof, the instruction control module with information security certification function is used to complete encrypted instruction Data Analysis, master chip sends control end transfer control instruction by serial ports to instruction authentication module, after instruction authentication module completes the parsing work of encrypted instruction, return the control command after deciphering, master chip controls the operating state of emergent broadcast terminal according to returning control command; Thus solve the safety issue of emergency broadcase system control command, have the advantages that fail safe is high, practical.
Accompanying drawing explanation
In order to clearer explanation present specification embodiment or technical scheme of the prior art, below the accompanying drawing used required in the description to embodiment or prior art is briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiments in present specification, for those skilled in the art, when not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the emergent broadcast terminal equipment block diagram of band control command information security certification.
Fig. 2 is that the emergent broadcast terminal equipment control command of band control command information security certification flows to schematic diagram.
Fig. 3 is emergent broadcast end-point device broadcast data and the control command process chart of band control command information security certification.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, Fig. 1 is the emergent broadcast terminal equipment block diagram of band control command information security certification, a kind of emergent broadcast terminal equipment with information security certification of the present embodiment, whole system is exported formed with power amplifier module etc. by GPRS module, decoding master chip, network controller, FM broadcasting FM receiving element, DVB-C signal receiving unit, instruction control module, audio frequency.FM broadcasting FM receiving element completes the reception of control command and frequency modulation emergent broadcast data; DVB-C signal receiving unit can receive the emergent broadcast RF signal meeting DVB-C standard, and converts intermediate-freuqncy signal to and export to decoding master chip; Decoding master chip completes broadcast data decoding, the parsing of control command, priority selection, control command execution work; GPRS module realizes terminal equipment work state information and passes back to front-end control systemic-function in wireless data mode, carries out information interaction by serial ports and decoding master chip; Network controller completes with the Ethernet data of front-end control system mutual, carries out data interaction by MII interface and decoding master chip; Instruction control module completes the decrypted authentication work of control extension instruction, ensures the fail safe of control command and the fail safe of emergent broadcast data playback; Audio frequency can be opened after exporting and receiving emergent broadcast data with power amplifier module automatically, under decoding master chip controls, emergent broadcast data is outputted to loudspeaker.
As shown in Figure 2, Fig. 2 is that the emergent broadcast terminal equipment control command with information security certification flows to schematic diagram.Control command is divided into 6 classes, comprises management system and issues main control unit instruction EDCM_MU; Management system is handed down to instruction control unit instruction EDCM_SM; Main control unit is handed down to instruction control unit command M U_SM; Instruction control unit returns to main control unit instruction SM_MU; Instruction control unit returns to management system instruction SM_EDCM; Main control unit returns to management system command M U_EDCM.After the instruction that wherein management system is handed down to control command unit is forwarded by master chip, be decrypted by instruction control unit, the instruction after deciphering comprises and stops emergent broadcast playing, starts that emergent broadcast broadcasts, arranges terminal equipment frequency, device end broadcast sound volume, terminal equipment enter the operations such as upgrade status.Instruction control unit returns to management system instruction and is transmitted to management system by main control unit, and whether this instruction is mainly used in pointing out management system successful to the operation of terminal equipment.
As shown in Figure 3, Fig. 3 is a kind of emergent broadcast end-point device broadcast data and control command process chart with information security certification.Multichannel control command data and emergent broadcast audio, video data carry out demodulation by respective demodulation module, data after demodulation are sent to decrypted authentication module and are decrypted certification, data after decrypted authentication are fed to control command parsing module and resolve, after successfully resolved, then control command being sent into priority selects module to select, priority selects module to contrast according to the priority of this control command and the current control command priority performed, select the control command that priority is higher, and import selection result into control Executive Module, handled it by control Executive Module.As the current height of control command priority ratio imported into, then stop current control command to perform, the control command that response priority is high, control Executive Module selects module to export control command state modulator demodulation module according to priority simultaneously, decoding master chip carries out demodulation code to emergent broadcast audio frequency and video, and carries out emergent broadcast broadcast.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, identical similar portion cross-reference between each embodiment.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of and claim open in the application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (8)
1. the emergent broadcast terminal equipment with control command information security certification, is characterized in that it comprises:
FM broadcasting FM receiving element, for receiving control command and frequency modulation emergent broadcast data;
DVB-C signal receiving unit, for receiving the emergent broadcast RF signal meeting DVB-C standard, and converts intermediate-freuqncy signal to and exports to decoding master chip;
Decoding master chip, selects for broadcast data decoding, the parsing of control command, priority, control command performs;
GPRS module, for passing back to front-end control system by terminal equipment work state information in wireless data mode;
Network controller, for mutual with the Ethernet data of front-end control system;
Instruction control module, for control extension instruction decrypted authentication and ensure the fail safe of control command and the fail safe of emergent broadcast data playback;
Audio frequency export and power amplifier module, automatically open after receiving emergent broadcast data and master chip control under for emergent broadcast data are flowed to loudspeaker.
2. the emergent broadcast terminal equipment of band control command information security certification according to claim 1, is characterized in that described FM broadcasting FM receiving element has RDS function.
3. the emergent broadcast terminal equipment of band control command information security certification according to claim 1, it is characterized in that described decoding master chip sends the control command of control end transmission to instruction control module by serial ports, instruction control module is to the decrypted authentication of control extension instruction, and returning the control command after deciphering to decoding master chip, decoding master chip controls the operating state of emergent broadcast terminal according to the control command returned.
4. the emergent broadcast terminal equipment of band control command information security certification according to claim 1, is characterized in that described network controller carries out data interaction by MII interface and decoding master chip.
5. the emergent broadcast terminal equipment of band control command information security certification according to claim 1, it is characterized in that described decoding master chip comprises director data parsing module, priority is selected module and is controlled Executive Module, send into command analysis module by the data after instruction control module decrypted authentication to resolve, and select module to select the control command feeding priority after resolving, priority selects module to contrast according to the priority of this control command and the current control command priority performed, select the control command that priority is high, and import selection result into control Executive Module, handled it by control Executive Module.
6. an information safety authentication method for emergent broadcast terminal equipment, is characterized in that it comprises:
The reception of control command and frequency modulation emergent broadcast data is completed by FM broadcasting FM receiving element;
Received by DVB-C signal receiving unit and meet the emergent broadcast RF signal of DVB-C standard, and convert intermediate-freuqncy signal to and export to decoding master chip;
Complete broadcast data decoding, the parsing of control command by decoding master chip, priority selects and control command performs;
Realize terminal equipment work state information by GPRS module and pass back to front-end control system in wireless data mode, and carry out information interaction with decoding master chip;
Undertaken alternately by the Ethernet data of network controller and front-end control system, and carry out data interaction with decoding master chip;
And the decrypted authentication work of control extension instruction is completed by instruction control module, ensure the fail safe of control command and the fail safe of emergent broadcast data playback;
After also receiving emergent broadcast data by audio frequency output with power amplifier module, under decoding master chip controls, emergent broadcast data are outputted to loudspeaker.
7. the information safety authentication method of emergent broadcast terminal equipment according to claim 6, it is characterized in that sending into command analysis module by the data after instruction control module decrypted authentication in described decoding master chip resolves, and select module to select the control command feeding priority after successfully resolved, priority selects module to contrast according to the priority of this control command and the current control command priority performed, select the control command that priority is higher, and import selection result into control Executive Module, handled it by control Executive Module.
8. the information safety authentication method of emergent broadcast terminal equipment according to claim 7, it is characterized in that when the control command priority ratio that import into current high when, then stop current control command to perform, the control command that response priority is high, control Executive Module to carry out demodulation code to emergent broadcast audio frequency and video according to priority selection module output control command state modulator demodulation module, decoding chip, and carry out emergent broadcast broadcast simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410735428.0A CN104394165B (en) | 2014-12-05 | 2014-12-05 | Emergent broadcast terminal device and its information safety authentication method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410735428.0A CN104394165B (en) | 2014-12-05 | 2014-12-05 | Emergent broadcast terminal device and its information safety authentication method |
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| CN104394165A true CN104394165A (en) | 2015-03-04 |
| CN104394165B CN104394165B (en) | 2017-10-13 |
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| CN105656579A (en) * | 2016-02-22 | 2016-06-08 | 四川长虹电器股份有限公司 | Multifunctional broadcast controller based on RDS |
| CN105790871A (en) * | 2016-02-22 | 2016-07-20 | 四川长虹电器股份有限公司 | Intelligent broadcast terminal based on GPRS and RDS |
| CN107195315A (en) * | 2017-07-25 | 2017-09-22 | 成都德芯数字科技股份有限公司 | Audio broadcast control device and method |
| CN107564256A (en) * | 2017-08-13 | 2018-01-09 | 惠州市德赛西威汽车电子股份有限公司 | A kind of vehicle audio RDS systems and software supervision method |
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