CN203632685U - Terminal - Google Patents
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- CN203632685U CN203632685U CN201320824478.7U CN201320824478U CN203632685U CN 203632685 U CN203632685 U CN 203632685U CN 201320824478 U CN201320824478 U CN 201320824478U CN 203632685 U CN203632685 U CN 203632685U
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Abstract
The utility model discloses a terminal comprising an information receiving sub-board, an information processing mainboard, a power amplifier module, a front panel and a power module. The information receiving sub-board is used for receiving information from a receiving end and specifically comprises a communication sub-board, a frequency modulation broadcasting board, and a channel demodulation sub-board. The information processing mainboard is connected with the information receiving sub-board and used for processing the information received by the information receiving sub-board. The power amplifier module is connected with the information processing mainboard and used for outputting the information processed by the information processing mainboard. The front panel comprises keys and a screen and is connected with the information processing mainboard. The power module is connected with the information receiving sub-board, the information processing mainboard, the power amplifier module and the panel.
Description
Technical field
The utility model relates to Information Technology Agreement field, relates in particular to a kind of terminating machine.
Background technology
, there is the demand of disposing emergency broadcase system in the area taking place frequently in nature and man-made disaster.Emergency broadcase system can be in the time running into or predict the emergencies such as natural calamity, war, the attack of terrorism; exactly urgent early warning information is issued to the affected office of possibility, department and ruck in time; so that relevant departments employ prevention in time or relief measure; and the masses take lives and properties safeguard measure in time, to reduce Loss of Life and property.Emergency broadcase system is issued the parts such as department, management platform, transmission overlay network and receiving terminal and is formed by early warning information.
The front end of emergent broadcast is broadcast platform to be had to the information content of terminal transmission: emergent broadcast digital video programs, and emergent broadcast audio frequency, urgent early warning data (text message), for the monitored instruction of emergent broadcast terminal, etc.Front-end information may be FM broadcasting, mobile communications network, digital video broadcast-satellite (being generally national live broadcasting satellite) channel, ground digital television broadcast channel, cable tv broadcast channel etc. to the path of terminal transmission.
Emergent broadcast terminal should be able to receive various emergent broadcast information, and it is carried out to necessary processing, then informs the common people with the form of image or sound; Before there is the emergencies such as disaster, war, send early warning information to the public that may be subject to emergency impact; After disaster occurs, transmit external rescue information to masses suffering from disaster.Due in there is emergency, often have one or more transmission network in failure state, therefore, the emergent broadcast information that front end is issued can be by multiple transmission paths simultaneously to terminal transmission, and under different geography and humanistic environment situation, the passage of front end transmission information has combination flexibly.
Because above-mentioned reason, the design of emergent broadcast terminal receiver should meet some special technical requirements: the first, possess the ability that simultaneously receives the emergent broadcast information of various ways from multiple channel, i.e. multimode receiving ability.The second, in order to meet the needs of different regions and different application occasion, product will be accomplished the different information of flexible configuration to receive and processing module.The 3rd, in order to accomplish not disturb residents under non-emergent situation, equipment will be in the resting state of low-power consumption at ordinary times; And occurring that emergency, system are patrolled and examined or can start fast again work when manoeuvre.Also there is no at present a kind of emergent broadcast terminal practical, that can meet above-mentioned requirements.
In sum, present inventor realizing in the process of utility model technical scheme in the embodiment of the present application, finds that above-mentioned technology at least exists following technical problem:
In the prior art, because existing emergent broadcast terminal reception information module is single, can not the different information of flexible configuration receive and processing module, and mode of operation is single, so there is function singleness in existing emergent broadcast terminal, can not flexible configuration different information receives and processing module, and the technical problem that disturbs residents of the single power consumption of mode of operation.
Utility model content
The embodiment of the present application is by providing a kind of terminating machine, solve existing emergent broadcast terminal in prior art and had function singleness, can not the different information of flexible configuration receive and processing module, and the technical problem that the single power consumption of mode of operation disturbs residents, realize emergent broadcast terminal can receive the emergent broadcast information of various ways simultaneously ability from multiple channel, can the different information of flexible configuration receive and processing module, and the technique effect of the low-power consumption that do not disturb residents.
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of terminating machine, and described terminating machine comprises:
Information receives daughter board, and described information receives daughter board for receiving the information from transmitting terminal, and wherein, described information receives daughter board and specifically comprises: communication daughter board and FM broadcasting daughter board and channel demodulation daughter board;
Information processing mainboard, described information processing mainboard receives daughter board with described information and is connected, and processes for the information that described information reception daughter board is received;
Power amplifier module, described power amplifier module is connected with described information processing mainboard, for information after treatment described information processing mainboard is exported;
Front panel, described front panel comprises: button and screen, described front panel is connected with described information processing mainboard;
Power module, described power module receives daughter board with described information and is connected with described power amplifier module and described front panel with described information processing mainboard.
Wherein, described terminating machine comprises that two kinds of mode of operations are respectively: resting state and wake-up states.
Wherein, described information processing mainboard specifically comprises: main control module and code stream processing module and decoder and voice conversion module and power supply processing module and external interface module and audio signal handover module.
Wherein, described main control module specifically comprises: single-chip microcomputer and memory.
Wherein, described channel demodulation daughter board specifically comprises: DTMB demodulation daughter board and ABS-S demodulation daughter board and DVB-C demodulation daughter board.
The one or more technical schemes that provide in the embodiment of the present application, at least have following technique effect or advantage:
Because the thinking that has adopted mainboard to add daughter board designs emergent broadcast terminal, the daughter board or the module that make emergent broadcast information that terminal is can flexible configuration different receive and process, each daughter board is the type to mainboard report self by inner communication protocol, the emergent broadcast information that each daughter board receives, being transmitted to message processing module by the special switching on mainboard and transfer parts processes, and be transferred to extraneous technological means by power amplifier module, so, efficiently solve existing emergent broadcast terminal in prior art and have function singleness, can not the different information of flexible configuration receive and processing module, and the technical problem that the single power consumption of mode of operation disturbs residents, and then realize emergent broadcast terminal and can receive from multiple channel simultaneously the ability of the emergent broadcast information of various ways, can the different information of flexible configuration receive and processing module, and the technique effect of the low-power consumption that do not disturb residents.
Accompanying drawing explanation
Fig. 1 is the structural representation of terminating machine in the embodiment of the present application;
Fig. 2 is the structural representation of information processing mainboard in terminating machine in the embodiment of the present application;
Fig. 3 is theory diagram in terminating machine in the embodiment of the present application;
Fig. 4 is terminating machine information flow and processing schematic diagram in the embodiment of the present application;
Fig. 5 is the application block diagram of outdoor type terminating machine in the embodiment of the present application.
Embodiment
The embodiment of the present application is by providing a kind of terminating machine, solve existing emergent broadcast terminal in prior art and had function singleness, can not the different information of flexible configuration receive and processing module, and the technical problem that the single power consumption of mode of operation disturbs residents, realize emergent broadcast terminal can receive the emergent broadcast information of various ways simultaneously ability from multiple channel, can the different information of flexible configuration receive and processing module, and the technique effect of the low-power consumption that do not disturb residents.
Technical scheme during the application implements is for solving the problems of the technologies described above.General thought is as follows:
The application provides a kind of terminating machine, wherein, described terminating machine comprises: information receives daughter board, and described information receives daughter board for receiving the information from transmitting terminal, wherein, described information reception daughter board specifically comprises: communication daughter board and FM broadcasting daughter board and channel demodulation daughter board, information processing mainboard, described information processing mainboard receives daughter board with described information and is connected, and processes for the information that described information reception daughter board is received, power amplifier module, described power amplifier module is connected with described information processing mainboard, for information after treatment described information processing mainboard is exported, power module, described power module receives daughter board with described information and is connected with described information processing mainboard and described power amplifier module, the thinking that has adopted mainboard to add daughter board designs emergent broadcast terminal, the daughter board or the module that make emergent broadcast information that terminal is can flexible configuration different receive and process, each daughter board is the type to mainboard report self by inner communication protocol, the emergent broadcast information that each daughter board receives, being transmitted to message processing module by the special switching on mainboard and transfer parts processes, and be transferred to extraneous technological means by power amplifier module, so, efficiently solve existing emergent broadcast terminal in prior art and have function singleness, can not the different information of flexible configuration receive and processing module, and the technical problem that the single power consumption of mode of operation disturbs residents, and then realize emergent broadcast terminal and can receive from multiple channel simultaneously the ability of the emergent broadcast information of various ways, can the different information of flexible configuration receive and processing module, and the technique effect of the low-power consumption that do not disturb residents.
In order better to understand technique scheme, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
Embodiment mono-
In embodiment mono-, a kind of terminating machine is provided, please refer to Fig. 1, described terminating machine comprises:
Information receives daughter board, and described information receives daughter board for receiving the information from transmitting terminal, and wherein, described information receives daughter board and specifically comprises: communication daughter board 101 and FM broadcasting daughter board 102 and channel demodulation daughter board 103;
In actual applications, described transmitting terminal comprises communication transmitting terminal and broadcast transmission end and digital TV network transmitting terminal etc., and described information receives daughter board 101 for receiving from different paths and multi-form information.
Wherein, in present application example, please refer to Fig. 2, described information processing mainboard 104 specifically comprises: main control module 1041 and code stream processing module 1042 and decoder 1043 and voice conversion module 1044 and power supply processing module 1047 and external interface mould 1046 and audio signal handover module 1045.
Wherein, in present application example, described main control module 1041 specifically comprises: single-chip microcomputer and memory.
In actual applications, the Main Function of described single-chip microcomputer is: power supply and ON/OFF to other modules on each daughter board and mainboard manage; Receive and forward the low speed data that daughter board transmits; Accept long-range and local management, and described single-chip microcomputer in terminating machine in operating state always.
In actual applications, the Main Function of described code stream processing module is: realize the driving of each Digital Television demodulation module; Receive the TS stream that each demodulation module transmits, select one of them to give decoder (carrying out necessary PID displacement); Accept by the equipment control of local area network (LAN); Be responsible for main control singlechip, decoder and self embedded software to upgrade, and described code stream processing module starts under described Single-chip Controlling.
In actual applications, the Main Function of described decoder is: the audio frequency and video in the TS that logical device is transmitted are decoded; Receive the emergent broadcast data that transmit by serial ports of single-chip microcomputer, with the video output that is added to of OSD form, and described decoder starts under described Single-chip Controlling.
In actual applications, the Main Function of described voice conversion module is: receive the emergent broadcast text data that single-chip microcomputer transmits by serial ports, be converted into voice signal, and described voice conversion module starts under described Single-chip Controlling.
In actual applications, the Main Function of described power supply processing module is: for each standalone module on mainboard, each daughter board provide power supply, be subject to master control Single-chip Controlling.
In actual applications, the Main Function of described audio signal handover module is: frequency switch circuit receives the simulated audio signal from decoder, TTS buckle and each daughter board, and the audio interface of power board is delivered on selection 1 tunnel wherein.
In actual applications, the Main Function of described daughter board interface is: daughter board interface is used for connecting mainboard and each daughter board.
In actual applications, the Main Function of described communication daughter board is: by mobile cellular data network transmit, forwarding unit administrative messag and emergent broadcast text data, and described communication daughter board in terminating machine in operating state always.
In actual applications, the Main Function of described FM broadcasting daughter board is: receive emergent FM broadcasting, and the emergent text data of RDS sub-carrier modulation, and described FM broadcasting daughter board in terminating machine in operating state always.
In actual applications, the Main Function of described channel demodulation daughter board is: demodulation is by GB terrestrial, Chinese direct broadcasting satellite, the emergent broadcast audio/video program that transmits by Cable Digital TV Network, and wherein, described channel demodulation daughter board starts under mainboard control.
Wherein, in present application example, described message output module is specially power amplifier module, and described power module is connected with described information receiving module, described message processing module and described message output module.
Wherein, in present application example, described terminating machine comprises that two kinds of mode of operations are respectively: resting state and wake-up states.In actual applications, emergent broadcast terminating machine comprises that two kinds of mode of operations are respectively: resting state and wake-up states, and realize principle with regard to the system of two kinds of mode of operations below and be introduced respectively.Please refer to Fig. 3, Fig. 4, Fig. 5.
Resting state: under the state at equipment in dormancy, the processing of relevant information is mainly completed by mainboard single-chip microcomputer, mainly comprises:
1) from management control command and the emergent broadcast data message of GPRS daughter board.For management control command, carry out concurrent time response message of corresponding actions according to instruction.For emergent broadcast data-message, after receiving, should open immediately relevant daughter board and module (TTS module, outside power amplifier etc.), give these parts by information, to broadcast in time these information.
2) from emergent broadcast data message and the audio signal of FM broadcasting daughter board.For the audio signal from FM daughter board, only after the instruction that obtains opening audio broadcasting broadcast, just process, export, otherwise disregard.For emergent broadcast data-message, after receiving, should open immediately relevant daughter board and module (TTS module, outside power amplifier etc.), give these parts by information, to broadcast in time these information;
3) from keeper scene by the event message of button and front panel menu operation.Site administrator may require manually opened or close certain module or daughter board, or checks the operating state of equipment and module thereof, daughter board, changes the running parameter of certain daughter board etc.Mainboard single-chip microcomputer should respond these operations, and processes as requested.For the modification of equipment daughter board, module startup, shutoff operation and running parameter thereof, after operating successfully, its operating result, except informing local operator by modes such as menu, LED lamps, also should initiatively inform front end supervisory systems by the return path of the activities such as GPRS daughter board.
4) equipment is because the inner message producing of the processes such as power interruption recovering, abnormal restarting.While there is this kind of situation, mainboard single-chip microcomputer should complete self-initialization, and powers for each still needs the module of work or daughter board under resting state.The status message of initiation message, equipment and daughter board thereof is initiatively informed to front end supervisory systems by the return path of the activities such as GPRS.
5) there is the emergency action when abnormal with communicating by letter of GPRS module.This is divided into two kinds extremely: one is that GPRS module itself is no problem, but it has lost mobile communications network signal within a period of time; Now should be considered as a kind of state of emergency, now equipment should initiatively wake all modules and daughter board up, and controls each daughter board and search emergent broadcast information, selects a message the most reliable and broadcasts it, and the equipment that is to say now should initiatively wake oneself up.Another kind is that GPRS module heartbeat instruction has disappeared.Now represent that GPRS communication module itself has occurred fault.Now tackle GPRS module and carry out power-off and power and restart again, and then examination.If still do not worked through restarting several times continuously GPRS module, also should initiatively wake immediately oneself up, and other return paths that may exist by all report to the police to supervising platform, please refer to table 1-table 4, table 1-table 4 be mainboard unit sheet need information to be processed under resting state.
Table 1
Table 2
Table 3
Table 4
Wake-up states: under wake-up states, equipment is except single-chip microcomputer, GPRS communication daughter board and the FM broadcasting daughter board of mainboard, be positioned at the built-in double-core arm processor of FPGA(of mainboard), decoder, and 1～2 digital-TV channel demodulation daughter board all will start work.Under wake-up states, mainly jointly completed by decoding deck, TTS buckle and the power board etc. of mainboard single-chip microcomputer, mainboard FPGA, mainboard for the processing of relevant information.
Under wake-up states, mainboard single-chip microcomputer needs information spinner to be processed to comprise:
From management control command and the emergent broadcast data message of GPRS daughter board.Compare with sleep state, it manages control command, relatively, under sleep state, has increased device standby, the setting of solution tuned plate running parameter, the setting of multiple solution tuned plate TS stream selection strategy, emergent broadcast program parameter etc.
From emergent broadcast data message and the audio signal of FM broadcasting daughter board.
From keeper scene by the event message of button and front panel menu operation.Compare with sleep state, increase and understand the setting of tuned plate running parameter, multiple solution tuned plate TS stream selection strategy menu item is set etc.
Equipment is because the inner message producing of the processes such as power interruption recovering, abnormal restarting.
There is the emergency action when abnormal with communicating by letter of GPRS module.
On sleep state basis, at wake-up states, master control borad CPU also needs to process following information.Please refer to table 5-table 8, table 5-table 8 is the information that under wake-up states, equipment mainboard single-chip microcomputer needs extra process.
Table 5
Table 6
Table 7
Table 8
Under wake-up states, the FPGA on equipment mainboard and built-in arm processor thereof, the data processing task that need to bear is as follows:
The parameters such as the code stream selection strategy between new demodulation parameter, different demodulation module that reception and preservation main control singlechip transmit.According to preserve arrange drive separate tuned plate, and monitor each separate tuned plate whether lock.
Output to decoding deck according to default policy selection from the emergent broadcast program elementary streams in the TS of certain solution tuned plate.
Resolve at any time the programme information of selected TS, check and whether have new device program to upgrade, and in the time having new procedures to issue reception program file, and the software of module to needs upgrading is upgraded.
In the mode of built-in Web page, by carrying network interface finishing equipment each several part program upgrade.Please refer to table 9, table 9 is that under wake-up states, equipment mainboard FPGA needs information to be processed.
Table 9
In specific embodiment, emergent broadcast terminating machine product designed according to this invention can be outdoor type terminal, large-screen adaptive terminal, village of village sound and public broadcasting adaptive terminal three major types.
Outdoor type terminal: be arranged on field electric pole, steel tower, roof etc. and locate, receive the audio signal transmitting in modes such as FM broadcasting, digital broadcasting, digital television program sound accompaniments, it is received or is decoded; Receive the emergent broadcast data message that transmits with forms such as FM broadcasting RDS, GPRS cellular datas, and change (TTS) module by text voice and be transformed to voice signal.Carry out power amplification for the audio signal receiving or change, be broadcast to the public by outdoor typhon.
Large-screen adaptive terminal: be installed on as outdoor large screen TV provides in the equipment machine room of signal, receive: the audio signal 1) transmitting in modes such as FM broadcasting, digital broadcasting, digital television program sound accompaniments; Or the emergent broadcast data message transmitting with forms such as FM broadcasting RDS, GPRS cellular datas; 2) emergent digital television program signal.For the sound receiving, vision signal, tackle it and receive or decode, export to outdoor large screen television set by an outside audio-video signal switch.For receiving emergent broadcast data, can change by text voice (TTS) module and be transformed to after voice signal, replace television field frame; Also can be shown on video screen with the form of eye-catching OSD screen display character.
Village of village rings and public broadcasting adaptive terminal: be installed on as rural broadcasting station, and the broadcasting station that market, school, office etc. are located provides in the equipment machine room of audio signal source, receive: the audio signal transmitting in modes such as FM broadcasting, digital broadcasting, digital television program sound accompaniments, receives or decode and be converted to simulated audio signal it; Receive the emergent broadcast data message that transmits with forms such as FM broadcasting RDS, GPRS cellular datas, and change (TTS) module by text voice and be transformed to voice signal.The power amplifying device of being exported to broadcasting station, being stood by an external audio signal switch, is finally broadcast to the public by outdoor typhon.
For dissimilar emergent broadcast terminal, its basic module is consistent, receives daughter board but need to configure different channels, and outdoor type terminal also needs to install power board in addition.
Application implementation as an example of outdoor type emergent broadcast terminal example is referring to accompanying drawing 4.
In figure, emergent broadcast information is produced by emergency information issue at different levels department, broadcast manufacturing system through emergency informations at different levels and collect, arrange and necessary conversion, become respectively and be adapted at form multiplexing in digital television front-end system, f-m broadcast station, mobile communications network, that broadcast or transmit; Then pass through in processing such as the encapsulation of digital television front equipment, FM broadcasting messaging device, mobile communication cell data networking equipment, multiplexing (with ordinary numbers television program, fm broadcast signal, common mobile cellular data mixing), chnnel codings; Finally modulate and launch, in channel, transmitting.Because the restriction of physical condition, outdoor type emergent broadcast terminal equipment, the digital television signal that can receive and demodulate generally only has ground digital television broadcast and digital video broadcast-satellite signal, and does not comprise digital catv signal.
This equipment, in sleep state, only has single-chip microcomputer, GPRS communication daughter board and the work of FM FM broadcasting daughter board on mainboard at ordinary times, and the code stream on other daughter boards, mainboard is processed FPGA, decoder, TTS module and power board and all do not worked, to save the energy.Equipment may be waken up because of following several reasons: 1) front end management platform has been sent apparatus remote by GPRS network and waken instruction (emergency occurs, or while carrying out manoeuvre) up; 2) local management personnel wake at scene this equipment (when regular maintenance) up; 3) although do not receive Remote Wake Up instruction, received by GPRS or FM broadcasting the emergent broadcast data that urgency level is higher; 4) although do not receive Remote Wake Up instruction, monitor the unusual condition that dropout has appearred in GPRS communication daughter board and FM daughter board simultaneously.
Under wake-up states, the code stream that equipment is opened each channel demodulation daughter board, mainboard is processed the power supply of decoder section, TTS buckle and the power board of FPGA part, mainboard.
Now equipment still receives the emergent broadcast data from GPRS and FM daughter board at any time, and it is resolved.Equipment also can be received the FM broadcasting audio signal that FM daughter board transmits.The code stream that the FPGA reception terrestrial DTV of the code stream of mainboard processing simultaneously and direct broadcasting satellite Digital Television demodulation module transmit, and according to predefined strategy, select the code stream of certain daughter board input wherein, and give decoder by emergent broadcast program stream wherein and decode; The decoder audio broadcasting program of meeting an urgent need, or the sound accompaniment of emergent digital television broadcasting program decodes, and is reduced into analogue audio frequency.
Due to equipment under wake-up states together with time receive or decode multipath audio signal, it should select wherein Yi road to output to power board according to following priority level initializing principle, and broadcast by outlaid high tone loudspeaker: the audio frequency that the urgent broadcast text data conversion that the TTS module that priority is the highest transmits comes, that is, once equipment is received these data, transmit these information to TTS module immediately, start the output of audio switch selection TTS module, broadcast these information by loudspeaker; Which is higher for the priority of the audio frequency of the audio frequency of FM daughter board output or decoding deck output, can determine according to the configuration setting in advance.
Equipment, can be under front end management platform Long-distance Control under wake-up states, or local maintenance personnel carry out execute-in-place and reenter low-power consumption resting state.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Because the thinking that has adopted mainboard to add daughter board designs emergent broadcast terminal, the daughter board or the module that make emergent broadcast information that terminal is can flexible configuration different receive and process, each daughter board is the type to mainboard report self by inner communication protocol, the emergent broadcast information that each daughter board receives, being transmitted to message processing module by the special switching on mainboard and transfer parts processes, and be transferred to extraneous technological means by power amplifier module, so, efficiently solve existing emergent broadcast terminal in prior art and have function singleness, can not the different information of flexible configuration receive and processing module, and the technical problem that the single power consumption of mode of operation disturbs residents, and then realize emergent broadcast terminal and can receive from multiple channel simultaneously the ability of the emergent broadcast information of various ways, can the different information of flexible configuration receive and processing module, and the technique effect of the low-power consumption that do not disturb residents.
Although described preferred embodiment of the present utility model, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the utility model scope.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (5)
1. a terminating machine, is characterized in that, described terminating machine comprises:
Information receives daughter board, and described information receives daughter board for receiving the information from transmitting terminal, and wherein, described information receives daughter board and specifically comprises: communication daughter board and FM broadcasting daughter board and channel demodulation daughter board;
Information processing mainboard, described information processing mainboard receives daughter board with described information and is connected, and processes for the information that described information reception daughter board is received;
Power amplifier module, described power amplifier module is connected with described information processing mainboard, for information after treatment described information processing mainboard is exported;
Front panel, described front panel comprises: button and screen, described front panel is connected with described information processing mainboard;
Power module, described power module receives daughter board with described information and is connected with described power amplifier module and described front panel with described information processing mainboard.
2. terminating machine as claimed in claim 1, is characterized in that, described terminating machine comprises that two kinds of mode of operations are respectively: resting state and wake-up states.
3. terminating machine as claimed in claim 1, is characterized in that, described information processing mainboard specifically comprises: main control module and code stream processing module and decoder and voice conversion module and power supply processing module and external interface module and audio signal handover module.
4. terminating machine as claimed in claim 3, is characterized in that, described main control module specifically comprises: single-chip microcomputer and memory.
5. terminating machine as claimed in claim 1, is characterized in that, described channel demodulation daughter board specifically comprises: DTMB demodulation daughter board and ABS-S demodulation daughter board and DVB-C demodulation daughter board.
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| CN201320824478.7U CN203632685U (en) | 2013-12-16 | 2013-12-16 | Terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394165A (en) * | 2014-12-05 | 2015-03-04 | 四川九州电子科技股份有限公司 | Emergency broadcast terminal device and information safety certificate method thereof |
| CN104618049A (en) * | 2015-02-02 | 2015-05-13 | 四川泰立科技有限公司 | Multifunctional RDS emergency digital power amplifier and controlling method thereof |
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2013
- 2013-12-16 CN CN201320824478.7U patent/CN203632685U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394165A (en) * | 2014-12-05 | 2015-03-04 | 四川九州电子科技股份有限公司 | Emergency broadcast terminal device and information safety certificate method thereof |
| CN104394165B (en) * | 2014-12-05 | 2017-10-13 | 四川九州电子科技股份有限公司 | Emergent broadcast terminal device and its information safety authentication method |
| CN104618049A (en) * | 2015-02-02 | 2015-05-13 | 四川泰立科技有限公司 | Multifunctional RDS emergency digital power amplifier and controlling method thereof |
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Granted publication date: 20140604 |