CN206023943U - A kind of collection monitoring return device of frequency modulation broadcasting data - Google Patents
A kind of collection monitoring return device of frequency modulation broadcasting data Download PDFInfo
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- CN206023943U CN206023943U CN201620632665.9U CN201620632665U CN206023943U CN 206023943 U CN206023943 U CN 206023943U CN 201620632665 U CN201620632665 U CN 201620632665U CN 206023943 U CN206023943 U CN 206023943U
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- card
- demodulation
- control card
- interface
- signal
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Abstract
The utility model discloses a kind of collection monitoring return device of frequency modulation broadcasting data.Including signal distributor, at least one demodulation card, at least one control card, broadcast indicator measurement card；Signal distributor and at least one demodulation card coupling, each demodulation card one control card of coupling, control card couple server；Broadcast indicator measurement card is respectively coupled to demodulation card and control card.Signal distributor and demodulation card are carried out integrated by this utility model by unified control card, user is when using, without the need for the two connection can be used, in addition, when broadcast television signal demodulation is carried out, the various indexs of broadcast television signal can be measured, and pass measurement result back server, monitor in real time is realized to facilitate.
Description
Technical field
This utility model is related to the communications field, more particularly, to a kind of collection monitoring return device of frequency modulation broadcasting data.
Background technology
When multiple devices (such as TV) is connected with same signal source, it is necessary to multiple video signal cable connections, mesh
Front is all to adopt multiplex signal distributor, but has the output branch of a lot of signal distributors all less, such as existing HDMI (High
Definition Multimedia Interface, Chinese is HDMI) allotter is only 4 tunnels or 8
The product of route output, when connecting the equipment of more than 8 if necessary, with same signal source, it is necessary to multiple stage HDMI allotter,
Seem inconvenient.
Modem is a kind of hardware device, and it can complete the conversion between analogue signal and digital signal.Demodulation card
The hardware device of demodulation function can exactly be completed.
There are the following problems for prior art：
Signal distributor and demodulation card are used separately, when needing to use both equipment, both equipment are carried out
Connection is used, very inconvenient.The utility model proposes a kind of integrated signal allotter, the integrating device of demodulation card, pass through
Unified control card by signal distributor and demodulation card carry out integrated, user use when, without the need for will the two connection can use.
Utility model content
The purpose of this utility model is to provide a kind of collection monitoring return device of frequency modulation broadcasting data, and this utility model leads to
Cross unified control card signal distributor and demodulation card are carried out integrated, user when using, without the need for will the two connection can make
With.
For achieving the above object, one side of the present utility model is monitored back there is provided a kind of collection of frequency modulation broadcasting data
Device is passed, including signal distributor, at least one demodulation card, at least one control card；
The signal distributor and described at least one demodulation card coupling, the signal distributor is used for will be to be demodulated wide
Television signal transmission is broadcast to the demodulation card；
Each demodulation card one described control card of coupling described, the demodulation are blocked for receiving the solution of control card output
Instruction is adjusted, broadcast television signal to be demodulated is demodulated into analog audio-video signal, and by the analog audio-video signal output
Give the control card；
The control card couples server, and the control card is used for regarding the analog audio-video signal resolution for digital sound
Frequency signal, and the digital audio-video signal is exported to server.
Further, the collection monitoring return device of described frequency modulation broadcasting data, wherein,
The demodulation card is F head interfaces with the interface of signal distributor coupling, and the signal distributor is by the F
Broadcast television signal to be demodulated is transferred to demodulation card by head interface.
Further, the collection monitoring return device of described frequency modulation broadcasting data, wherein,
The demodulation card adopts the self-defined backplane interface of CPCI standards, the CPCI marks with the interface of control card coupling
Accurate self-defined backplane interface includes multiple stitch.
Further, the collection monitoring return device of described frequency modulation broadcasting data, wherein,
One or more stitch in the self-defined backplane interface of the CPCI standards are AV interfaces, and the demodulation card passes through institute
AV interfaces are stated by the analog audio-video signal output to control card.
Further, the collection monitoring return device of described frequency modulation broadcasting data, wherein,
One or more stitch in the self-defined backplane interface of the CPCI standards are IIC interfaces, and the control card passes through
The IIC interfaces will demodulate instruction output to the demodulation card.
Further, the collection monitoring return device of described frequency modulation broadcasting data, wherein,
The interface that the control card is coupled with the server is TS flow datas interface and Ethernet interface, the control card
The digital audio-video signal is exported by TS flow datas interface, and the digital audio-video signal for exporting is packed, will
Packed digital audio-video signal is exported to server by Ethernet interface.
Further, the collection monitoring return device of described frequency modulation broadcasting data, also includes broadcast indicator measurement card, described
Broadcast indicator measurement card is respectively coupled to the demodulation card and the control card, and the broadcast indicator measurement card is used for according to the control
The measurement instruction of fabrication output, carries out index measurement in demodulating process to broadcast television signal, and by measurement result export to
Control card.
Further, the collection monitoring return device of described frequency modulation broadcasting data, wherein,
The demodulation card is FM radio receiver card.
Further, the collection monitoring return device of described frequency modulation broadcasting data, is also included using the multiple of CPCI standards
Slot, the demodulation card and control card are assigned in the plurality of slot respectively.
Further, the collection monitoring return device of described frequency modulation broadcasting data, also includes the cabinet that receiving space is 4U
And fan, the fan is arranged at the bottom within the cabinet, and the blade of the fan is right angle setting.
As described above, signal distributor and demodulation card are carried out integrated, user by unified control card by this utility model
In use, without the need for the two connection can be used, in addition, when broadcast television signal demodulation is carried out, can be to broadcast
The various indexs of TV signal are measured, and pass measurement result back server, realize monitor in real time to facilitate.
Description of the drawings
Overall structure diagrams of the Fig. 1 for the collection monitoring return device of this utility model frequency modulation broadcasting data；
Fig. 2 is according to control card internal module schematic diagram described in the utility model；
Fig. 3 is the broadcast indicator measurement card of the collection monitoring return device of this utility model frequency modulation broadcasting data and demodulation card
Annexation schematic diagram with control card.
Specific embodiment
For making the purpose of this utility model, technical scheme and advantage of greater clarity, with reference to specific embodiment
And referring to the drawings, this utility model is further described.It should be understood that these descriptions are simply exemplary, and do not really want
Limit scope of the present utility model.Additionally, in the following description, the description to known features and technology is eliminated, to avoid not
Necessarily obscure concept of the present utility model.
Explanation of nouns：
TS data flows (Transport Stream), are called transport stream, refer to received by DTV STB
It is a section code stream.
The abbreviation of CPCI, i.e. Compact PCI (Compact Peripheral Component Interconnect),
Chinese, also known as compact PCI, is a kind of bus standard of International Industry Technological Problems In Computer Manufacturing person community proposition in 1994, is a kind of
High performance industrial bus.
IIC (Inter-Integrated Circuit), is called IC bus, is a kind of multidirectional controlling bus,
That is multiple chips are may be coupled under same bus structure, while each chip can serve as the control of real-time Data Transmission
Source processed.
HDMI (High Definition Multimedia Interface), is called HDMI, is one
Kind of digitized video/audio interface technology, is the tailored version digital interface for being suitable for image transmission, its can transmit simultaneously audio frequency and
Signal of video signal, the maximum data transmission speed are 4.5GB/s.
AV interfaces, are made up of the line of yellow, white, red three kinds of colors, and wherein yellow line is video transmission line, and white and redness are then
The transfer voice of responsible left and right acoustic channels.
UART (Universal Asynchronous Receiver/Transmitter), is called universal synchronous/asynchronous receipts
Transmitter is sent out, is a kind of Universal Serial Bus, for asynchronous communication, the bus two-way communication, it is possible to achieve full duplex is passed
Defeated and reception.
Overall structure diagrams of the Fig. 1 for the collection monitoring return device of this utility model frequency modulation broadcasting data, Fig. 2 is root
Module connection diagram according to this utility model first embodiment.
As shown in Figure 1, 2, this utility model includes cabinet, fan, power supply, signal distributor, multiple slots and assigns
With the multiple demodulation cards in the slot, broadcast indicator measurement card, multiple control cards.
Wherein, cabinet adopts space size for the cabinet in the space of 4U.The fan, power supply, signal distributor, multiple insert
Groove and assigning is arranged in cabinet with the multiple demodulation cards in the slot, broadcast indicator measurement card, multiple control cards
Portion.The plurality of slot adopts CPCI frameworks.
The plurality of slot is divided into two rows, and a row is used for assigning control card, and a row is used for assigning demodulation card and others
Expansion card, the number for being preferable to provide every rows of sockets is 8, altogether 16.Slot meets CPCI standards, using length pin junction
Structure.
The reserved size in cabinet inside bottom for 1U space placing fan.The blade right angle setting of fan, so that
The distributed thermal current of the original paper of cabinet inside blows from bottom to up, meets cross-ventilation principle, good heat dissipation effect.
Power supply is supported hot plug or is adopted industrial computer server using CPCI power supplys.
Signal distributor and at least one demodulation card coupling, each demodulation card one control card of coupling, control card coupling clothes
Business device.
Signal distributor, demodulation card, the operation principle between control card, server are：
Signal distributor by be input at least broadcast television signal is divided into multi-channel radio and television signal all the way, and will be described many
Road broadcast television signal is to output to the demodulation card being coupled with it.
Control card issues demodulation instruction to demodulation card, and demodulation card is demodulated to broadcast television signal according to demodulation instruction,
Analog audio-video signal is obtained, and by the analog audio-video signal output to control card.
Control card is parsed to analog audio-video signal, obtains digital audio-video signal, and the digital audio/video is believed
Number export to server.If control card occurs abnormal, control card during parsing to analog audio-video signal
Equally abnormal information is exported to server.
The demodulation card is F head interfaces with the interface of signal distributor coupling, and the signal distributor is by the F
Broadcast television signal to be demodulated is transferred to demodulation card by head interface.
The demodulation card adopts the self-defined backplane interface of CPCI standards, the CPCI marks with the interface of control card coupling
Accurate self-defined backplane interface includes multiple stitch.
One or more stitch in the self-defined backplane interface of the CPCI standards are AV interfaces, and the demodulation card passes through institute
AV interfaces are stated by the analog audio-video signal output to control card.
One or more stitch in the self-defined backplane interface of the CPCI standards are IIC interfaces, and the control card passes through
The IIC interfaces will demodulate instruction output to the demodulation card.
The interface that the control card is coupled with the server is TS flow datas interface and Ethernet interface, the control card
The digital audio-video signal is exported by TS flow datas interface, and the digital audio-video signal for exporting is packed, will
Packed digital audio-video signal is exported to server by Ethernet interface.
The demodulation card is FM radio receiver card.
In a specific embodiment of the present utility model, the technical parameter of broadcast indicator measurement card is as follows：
Frequency range：FM 87MHz～108MHz；
Real-time bandwidth：Maximum 8MHz；
Frequency resolution：Minimum 3KHz；
Power measurement scope：0dBuV～120dBuV；(250KHz internal powers)；
Accuracy of Power Measurement：± 1dB (0～110dBuV), ± 3dB (>110dBuV)；
Modulation degree accuracy：5%；
Frequency deviation accuracy：5KHz；
Main measurement function：Level, percentage modulation frequency deviation, spectrum scan；
The spectrum scan time：1000 frequencies/second (3KHz resolution)；
Input impedance：75 Ω or 50 Ω；
The index measurement precision of broadcast indicator measurement card frequency-modulation broadcasting is：
Monitoring band limits：87MHz～108MHz；
Level range：30dBuV～100dBuV；
Level measurement precision：±3dB；
Modulation measurement precision：±5KHz；
Demodulation card includes frequency modulation (FM) broadcast receiving card.
The technical parameter of frequency modulation (FM) broadcast receiving card is as follows：
External interface：Four F heads；
Internal interface：Standard CPCI carries on the back card interface, 4 road analog audio interfaces, parallel TS flow datas interface, IIC, standard
UART interface；
Size：Meet CPCI 3U board sizes；
Measurement frequency scope：87MHz～108MHz；
Working method：FM, WFM；
Frequency stability：It is less than 3ppm (25 DEG C)；
Receiving circuit：Two grades of superhet；
Sensitivity：It is less than 1.4 μ V；
Selectivity：230KHz/-6dB；
Radio frequency level measurement range：10dBuV～80dBuV (30dBuV～110dBuV is optional)；
Input：4 road fm broadcast signals (RF)；
Output：4 road simulated audio signals.
Fig. 2 is according to control card internal module schematic diagram described in the utility model.
As shown in Fig. 2 control card adopts the TMS320DM6467Soc of TI as master chip.The chip be Duo-Core Architecture, group
High performance TMS320C64x+DSP cores and ARM926EJS cores are closed.Embedded Linux system, operational network is adopted to lead on ARM
Letter and control program；Using DSPBIOS real time operating systems on DSP, audio/video decoding encoding and decoding and transcoding algorithm is run, supported
High definition is decoded.
Fig. 3 is the broadcast indicator measurement card of the collection monitoring return device of this utility model frequency modulation broadcasting data and demodulation card
Annexation schematic diagram with control card.
As shown in figure 3, the collection monitoring return device of frequency modulation broadcasting data also includes broadcast indicator measurement card, broadcast indicator
Measurement card is respectively coupled to demodulation card and control card.The measurement instruction that broadcast indicator measurement card is exported according to the control card, in solution
Index measurement being carried out during tune to broadcast television signal, and measurement result being exported to control card, control card is to measurement result
Export to server after carrying out finishing analysis, so that server being capable of monitor in real time broadcast measurement data.
It should be appreciated that above-mentioned specific embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, and do not constitute to restriction of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvements done etc., should be included within protection domain of the present utility model.Additionally,
This utility model claims are intended to fall into scope and border or this scope and border
Whole in equivalents change and modifications example.
Claims (10)
1. return device is monitored in a kind of collection of frequency modulation broadcasting data, it is characterised in that including signal distributor, at least one solution
Adjust card, at least one control card；
The signal distributor and described at least one demodulation card coupling, the signal distributor are used for broadcast electricity to be demodulated
Depending on signal transmission to the demodulation card；
Each demodulation card one described control card of coupling described, the demodulation are blocked and are referred to for receiving the demodulation of control card output
Broadcast television signal to be demodulated is demodulated into analog audio-video signal by order, and by the analog audio-video signal output to institute
State control card；
The control card couples server, and the control card is used for believing the analog audio-video signal resolution for digital audio/video
Number, and the digital audio-video signal is exported to server.
2. device according to claim 1, wherein,
The demodulation card is F head interfaces with the interface of signal distributor coupling, and the signal distributor connect by the F heads
Broadcast television signal to be demodulated is transferred to demodulation card by mouth.
3. device according to claim 1, wherein,
The demodulation card adopts the self-defined backplane interface of CPCI standards with the interface of control card coupling, and the CPCI standards are certainly
Defining backplane interface includes multiple stitch.
4. device according to claim 3, wherein,
One or more stitch in the self-defined backplane interface of the CPCI standards are AV interfaces, and the demodulation card passes through the AV
Interface is by the analog audio-video signal output to control card.
5. device according to claim 3, wherein,
One or more stitch in the self-defined backplane interface of the CPCI standards are IIC interfaces, and the control card is by described
IIC interfaces will demodulate instruction output to the demodulation card.
6. device according to claim 1, wherein,
The interface that the control card and the server are coupled is TS flow datas interface and Ethernet interface, and the control card is by institute
State digital audio-video signal to export by TS flow datas interface, and the digital audio-video signal for exporting is packed, will packing
Good digital audio-video signal is exported to server by Ethernet interface.
7. device according to claim 1, also includes that broadcast indicator measurement card, the broadcast indicator measurement card are respectively coupled to
The demodulation card and the control card, the broadcast indicator measurement card are used for the measurement instruction according to control card output,
Index measurement is carried out to broadcast television signal in demodulating process, and measurement result is exported to control card.
8. device according to claim 1, wherein,
The demodulation card is FM radio receiver card.
9. device according to claim 1, also includes the multiple slots using CPCI standards, the demodulation card and control card
Assigned in the plurality of slot respectively.
10. device according to claim 1, also includes that cabinet and fan that receiving space is 4U, the fan are arranged at
Bottom within the cabinet, the blade of the fan is right angle setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632665.9U CN206023943U (en) | 2016-06-23 | 2016-06-23 | A kind of collection monitoring return device of frequency modulation broadcasting data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632665.9U CN206023943U (en) | 2016-06-23 | 2016-06-23 | A kind of collection monitoring return device of frequency modulation broadcasting data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023943U true CN206023943U (en) | 2017-03-15 |
Family
ID=58243069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620632665.9U Expired - Fee Related CN206023943U (en) | 2016-06-23 | 2016-06-23 | A kind of collection monitoring return device of frequency modulation broadcasting data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023943U (en) |
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2016
- 2016-06-23 CN CN201620632665.9U patent/CN206023943U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20190623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |