CN206506534U - Digital broadcast transmission monitoring system - Google Patents
Digital broadcast transmission monitoring system Download PDFInfo
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- CN206506534U CN206506534U CN201720097842.2U CN201720097842U CN206506534U CN 206506534 U CN206506534 U CN 206506534U CN 201720097842 U CN201720097842 U CN 201720097842U CN 206506534 U CN206506534 U CN 206506534U
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Abstract
A kind of digital broadcast transmission monitoring system, it is characterised in that including：Input signal receiving unit, input signal monitoring unit, output signal receiving unit, monitor signal output unit, multi-format monitoring unit, broadcast reception unit and broadcast monitoring unit；The input signal receiving unit is communicated to connect with the input signal monitoring unit；Output signal receiving unit is connected with monitor signal output unit communication；Multi-format monitoring unit is connected with input signal monitoring unit and monitor signal output unit communication；Broadcast reception unit and broadcast monitoring unit communication connection.Solve and dumb, the low technical problem of efficiency is monitored to broadcast singal present in conventional art.
Description
Technical field
The utility model is related to a kind of signal transmission of monitoring system, more particularly to a kind of digital broadcast transmission monitoring system
System.
Background technology
It is domestic in the recent period to publish what General Bureau of Radio, Film and Television issued《The wireless digitizing covering engineering general technical of central broadcast TV programme
Scheme》In point out, frequency modulation frequency band digital audio droadcasting system is divided into front end system, transmission link and three, covered ground network
Point.Front end system provides all the way that the transport stream of totally 3 sets of DAB broadcast programs is as signal source, by transmission link by one
Road transport stream is distributed to the transmitting station in covered ground network；Each station of covered ground network is wide using a frequency modulation respectively
Frequency is broadcast, by analog- and digital- while being transmitted covering in the way of broadcast.In CDR front end systems, the automatic switchover master of code stream
To rely on the automatic detection and handoff functionality of Thomson bitstreams switching device.It can determine whether by the testing conditions of configuration bit stream switch
Whether the code stream of active and standby two-way input signal is abnormal, automatically selects normal code stream output, and setting according to the actual requirements all the way
The condition of abnormal judgement is put, it is bad caused by can solving under partial code streams abnormal conditions to broadcast problem.In addition, the switch also has
Manual switching function, operating personnel very easily can carry out manual switching by the button of machine front panel.In addition, country is wide
Electric general bureau promulgates in July, 2011《TV Safe Broadcasting administrative provisions》Pointed out in detailed rules for the implementation, transmitting stations at different levels are equal
The processing of signal sources equipment such as signal switching, distribution should be configured, and faulty equipment is skipped in the emergent wire jumper of respective nodes configuration；It is all
Processing of signal sources equipment should have high reliability, and stronger antijamming capability, technical indicator should meet the requirement of respective standard.Pass
Frequency modulation frequency band digital audio broadcasting in system technology is broadly divided into major and minor two kinds of business, and wherein main business audio coding is used
It is DRA (Digital Rise Audio, Digital Audio Coding Technology) low bit- rate extended version (DRA+), bit rate output scope is
24kbps to 128kbps, when bit rate output is 48kbps, decoded audio quality and current analog broadcasting quality phase
When if bit rate output reaches 128kbps, so that it may provide surround sound service to audience；Sideline production business is mainly used in supporting each
The dats services with increment of kind of various kinds, program operator can be according to the transmittability of channel, according to being actually needed adjustment audio program
With the proportion of business datum in the transport stream.Data after coding enter after multiplexing subsystem, and subsystem is by the audio after coding
The main business such as business, data service data are packaged into multiplexed frame according to certain multiplex protocol, in addition, system information is retouched with business
The configuration of information, generation is stated also to complete in multiplexing subsystem with encapsulation.The signal band of frequency modulation frequency band digital audio broadcast signal
Width is based on 100KHz subband, and data signal can be with flexible configuration.Band a width of 100KHz and 200KHz of pure digi-tal signal,
Used available for after analog broadcasting all digitlization or frequency resource well-to-do area relatively.And as Shanghai, this frequency in Beijing
The area of rate resource anxiety relatively, can also be seamlessly transitted by the way of digital-to-analogue is broadcast together.Digital audio broadcasting signal it is total
With a width of 100KHz, respectively it is made up of two bandwidth for 50KHz data signal, according to frequency modulation broadcasting technical specification, f-m stereo
Sound is broadcasted in 75KHz frequency deviations, 100% modulation degree, the power of FM signal 99% will focus on centre frequency ± 128KHz with
It is interior, therefore digital broadcast signal and the FM signal total bandwidth that simulates stereo is 400KHz (± 200KHz), and be independent of each other.
During actual test, can also according to the station and the situation and coverage effect of the periphery station, adjust analog signal power and
The ratio of digital power signal, reduces the interference to adjacent channel.Basic configuration require transmitting stations at different levels all should configure signal switching,
The processing of signal sources equipment such as distribution, and in the emergent wire jumper port of respective nodes configuration, under special circumstances, wire jumper of meeting an urgent need can be passed through
Skip faulty equipment；All processing of signal sources equipment should have high reliability, and stronger antijamming capability, technical indicator should meet
The requirement of respective standard.More than two grades transmitting stations of key equipment configuration requirement should configure the online of the key equipments such as switching, distribution
Hot Spare.It is recommended that conditional one-level transmitting station, which configures system-level backup, i.e. alternate device, constitutes complete standby system.For
The transmission of guarantee signal is uninterrupted, and the signal switching apparatus of all transmitting stations preferably possesses two kinds of switching modes of automatic/hand, generally
It is placed in automatically, manual switching or wire jumper are straight-through during failure.One-level transmitting station signal switching apparatus to the automatic detection of signal, from
Detection such as recovers at the work(when dynamic selection, signal deletion auto-alarm function, straight-through when should possess the memory to power supply, power-off, incoming call
Energy.The need for intelligent service requirement is realizes automatic monitoring, intelligent management, all signal handling equipments of one-level transmitting station should have
There is native data management interface.Status information capture, data record or remote control can be carried out to equipment by data-interface.
To sum up, the monitor in conventional art does not use the monitor in modularized design, conventional art can not be according to institute
The signal format and quantity that need to be monitored, insert less efficient, the monitor in conventional art of the monitoring of different input modules
Display information is monitored in real time, it is impossible to the input signal monitored needed for unrestricted choice.The two-way input of selection can not be more supervised simultaneously
The VU values and PPM values of stereo audio signal, the adjustment mode such as the effect gain of monitoring information are relatively single.In conventional art
On-air monitor does not merge analogue audio frequency output function, there is technical problem when needing and exporting the audio of other forms.Tradition
Monitor in technology can not neatly select monitoring signal form and quantity, it is impossible to be inputted while listening for display information two-way vertical
Body sound audio signals parameter.The presence monitored to broadcast singal is dumb, the low technical problem of broadcast singal monitoring efficiency.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide opening for safety relay
Dynamic circuit, for solving dumb in the prior art, the low technical problem of broadcast singal monitoring efficiency.
In order to achieve the above objects and other related objects, the utility model provides a kind of digital broadcast transmission monitoring system,
It is characterised in that it includes：Input signal receiving unit, input signal monitoring unit, output signal receiving unit, output signal prison
Survey unit, multi-format monitoring unit；The input signal receiving unit is communicated to connect with the input signal monitoring unit；Output
Signal receiving unit is connected with monitor signal output unit communication；Multi-format monitoring unit and input signal monitoring unit and output
Signal monitoring unit communication is connected；Broadcast reception unit and broadcast monitoring unit communication connection.
In one embodiment of the present invention, input signal receiving unit includes：Main signal receiving unit and space signal
Receiving unit；Main signal receiving unit is digital broadcasting transmitter with space signal receiving unit.
In one embodiment of the present invention, input signal monitoring unit includes：Decoding assembly is monitored in input and switching is passed
Defeated component；Decoding assembly and switching transmission assembly communication connection are monitored in input.
In one embodiment of the present invention, decoding assembly is monitored in input to be included：Main monitoring decoder and space signal prison
Listen decoder.
In one embodiment of the present invention, switching transmission assembly is communicated to connect with digital broadcast transmitter.
In one embodiment of the present invention, output signal receiving unit includes：Signal sampling component, signal sampling component
Communicated to connect with broadcast transmitting antenna.
In one embodiment of the present invention, monitor signal output unit includes：Monitor signal output decoder.
In one embodiment of the present invention, multi-format monitoring unit includes：Signal behavior component and signal listening components；
Signal behavior component and the communication connection of signal listening components.
In an embodiment of the present utility model, input slot, output slot and selection keyboard；Input slot, output
Slot and selection keyboard are arranged at multi-format monitoring unit shell.
In an embodiment of the present utility model, signal listening components include：Monitoring loudspeaker；Loudspeaker is arranged at defeated
Go out outside signal detection decoder.
As described above, one kind that the utility model is provided, has the advantages that：
The utility model is mainly for solving the above problems there is provided a kind of digital broadcast transmission monitoring system, and monitor is adopted
With modularized design, the monitor in the utility model inserts different inputs according to the signal format and quantity of required monitoring
Monitor in the monitoring of module, the utility model can flexibly monitor display information in real time, can be with prison needed for unrestricted choice
The input signal listened.The two-way input that the digital broadcast transmission monitoring system that the utility model is provided can supervise selection simultaneously is vertical
The VU values and PPM values of body sound audio signals, monitor efficiency and are improved compared with monitor in conventional art, broadcast listening of the present utility model
Device includes analogue audio frequency output function, need to such as export the audio of other forms when needing to export the audio of other forms, then
The output module of corresponding format only need to be inserted, output volume is adjustable.The utility model is solved present in conventional art
Dumb, the low technical problem of efficiency is monitored to broadcast singal.
Brief description of the drawings
Fig. 1 is shown as digital broadcast transmission monitor system components schematic diagram of the present utility model.
Fig. 2 is shown as the multi-format monitoring unit structural representation of the present invention.
Component label instructions
1 digital broadcast transmission monitoring system
11 input signal receiving units
12 input signal monitoring unit
13 output signal receiving units
14 monitor signal output units
15 multi-format monitoring unit
16 broadcast reception units
17 broadcast monitoring unit
111 main signal receiving units
112 space signal receiving units
Decoding assembly is monitored in 121 inputs
122 switching transmission assemblies
1211 main monitoring decoders
1212 space signals monitor decoder
131 signal sampling components
141 monitor signal output decoders
151 signal behavior components
152 signal listening components
1511 input slots
1512 output slots
1513 selection keyboards
1521 monitoring loudspeakers
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
Refer to Fig. 1.It should be clear that the structure depicted in this specification institute accompanying drawings, only to coordinate disclosed in specification
Content, for those skilled in the art understand with read, be not limited to the enforceable qualifications of the utility model,
Therefore not having technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing this reality
With under new effect that can be generated and the purpose that can reach, all should still it fall in the technology contents institute disclosed in the utility model
In the range of covering.Meanwhile, it is cited such as " on ", " under ", "left", "right", " centre " and " one " etc. in this specification
Term, is merely convenient to understanding for narration, and is not used to limit the enforceable scope of the utility model, the change of its relativeness
Or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
Referring to Fig. 1, digital broadcast transmission monitor system components schematic diagram of the present utility model is shown as, as shown in figure 1,
A kind of digital broadcast transmission monitoring system 1, it is characterised in that including：Input signal receiving unit 11, input signal monitoring unit
12nd, output signal receiving unit 13, monitor signal output unit 14, multi-format monitoring unit 15, broadcast reception unit 16 and wide
Broadcast monitoring unit 17；The input signal receiving unit 11 is communicated to connect with the input signal monitoring unit 12, input signal
Receiving unit 11 is CDR special receiver groups, and input signal monitoring unit 12 is that decoder group is monitored in CDR demodulation；Output signal
Receiving unit 13 is communicated to connect with monitor signal output unit 14, and wherein monitor signal output unit is that decoding is harked in CDR demodulation
Device group；Multi-format monitoring unit 15 is communicated to connect with input signal monitoring unit 12 and monitor signal output unit 14, wherein many
Form monitoring unit 15 is multi-format audio monitor；Broadcast reception unit 16 is communicated to connect with broadcast monitoring unit 17, wherein
Broadcast monitoring unit 17 is broadcast receiver.
Input signal receiving unit 11 includes：Main signal receiving unit 111 and space signal receiving unit 112；Main signal
Receiving unit 111 is digital broadcasting transmitter, the receiver/transmitter of main signal receiving unit 111 with space signal receiving unit 112
The signal that transmitting main frame in group is sent, the signal that the receiver/transmitter guest machine of space signal receiving unit 112 is sent,
99.0MHz active and standby road CDR code streams are sent to Oriental Pearl's transmitting station by Shanghai tv telecasting control centrally through optical fiber, by CDR
Feeding CDR monitors decoder and decoded after dedicated receiver is received and decoded, decoded signal feeding multi-format audio prison
Device is listened to be monitored.
Input signal monitoring unit 12 includes：Decoding assembly 121 and switching transmission assembly 122 are monitored in input；Input is monitored
Decoding assembly 121 is communicated to connect with switching transmission assembly 122, wherein decoding assembly 121 and switching transmission assembly 122 are monitored in input
It is bitstreams switching device that ring, which goes out connection switching transmission assembly 122, and CDR demodulation is sent into after transmission signal is sampled and monitors decoder
It is demodulated and decodes, decoded signal feeding multi-format audio monitor is supervised, monitored.
Decoding assembly 121 is monitored in input to be included：Main monitoring decoder 1211 and space signal monitor decoder 1212, wherein
Main monitoring decoder 1211 is connected with master transmitter CDR special receivers, receives the TS multiplexed data flows that transmitting main frame is sent, standby
Monitored decoder 1212 with signal and received and all be related to the TS multiplexed data flows that guest machine is sent.
Switch transmission assembly 122 to communicate to connect with digital broadcast transmitter, the input and Zhu for switching transmission assembly 122 are supervised
Listen decoder 1211 to connect and space signal is monitored decoder 1212 and connected, output end connection digital broadcast transmitting system.
Output signal receiving unit 13 includes：Signal sampling component 131, signal sampling component 131 and broadcast transmitting antenna
Communication connection, signal sampling component 131 is by the way of coupling sampling, and the sample of signal that collection emission system antenna is sent is used for
Monitor transmission signal.
Monitor signal output unit 14 includes：Monitor signal output decoder 141, output signal 141 pairs of decoder of detection
The emission system output signal sample that signal sampling component 131 is obtained is decoded, and the signal of decoding is unidirectionally sent to many
Form monitoring unit 15.
Multi-format monitoring unit 15 includes：Signal behavior component 151 and signal listening components 152；Signal behavior component 151
Communicated to connect with signal listening components 152, wherein, multi-format audio monitor is support HD/SD-SDI (embedded audio), AES/
EBU and analogue audio frequency form audiomonitor.Signal behavior component 151 wants monitoring signal for selection, and signal listening components are used
In gain monitoring signal.
Referring to Fig. 2, the multi-format monitoring unit structural representation of the present invention is shown as, as shown in Fig. 2 signal behavior group
Part 151 includes：Input slot 1511, output slot 1512 and selection keyboard 1513；Input slot 1511, output slot 1512 and
Selection keyboard 1513 is arranged at multi-format monitoring unit shell, and monitor uses flexible modularized design, and reserved 8 of rear portion is defeated
Enter slot and 1 output slot.According to the signal format and quantity of required monitoring, different input modules are inserted, by above
The selection key of plate coordinates LCD to show, the input signal monitored needed for selection, can be supervised simultaneously by four 30 sections of LED sound columns
See the VU values and PPM values of the two-way input stereo audio audio signal of selection.
Signal listening components 152 include：Monitoring loudspeaker 1521 and monitoring display screen 1522；Monitoring loudspeaker 1521 and prison
Listen display screen 1522 to be arranged at output signal detection decoder surface, monitored input/output signal can be amplified, it is 3 high to protect
Genuine monitoring loudspeaker 1521, is specified by the selecting switch of front panel and monitored wherein all the way.Monitoring volume can be on front panel
Adjustment.The machine carries analogue audio frequency output function, need to such as export the audio of other forms, then need to only insert the output of corresponding format
Module, output volume is adjustable, improves the Detection results of detecting system.
In summary there is provided a kind of digital broadcast transmission monitoring system, monitor uses modularized design, the utility model
In monitor according to the signal format and quantity of required monitoring, insert in the monitoring of different input modules, the utility model
Monitor can flexibly monitor display information in real time, input signal that can be to be monitored needed for unrestricted choice.The utility model
The digital broadcast transmission monitoring system of offer can supervise the VU values and PPM of the two-way input stereo audio audio signal of selection simultaneously
Value, monitors efficiency and is improved compared with monitor in conventional art, on-air monitor of the present utility model includes analogue audio frequency output work
Can, the audio of other forms need to be such as exported when needing to export the audio of other forms, then need to only insert the output of corresponding format
Module, output volume is adjustable.The utility model is solved monitors dumb, effect to broadcast singal present in conventional art
The low technical problem of rate.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (10)
1. a kind of digital broadcast transmission monitoring system, it is characterised in that including：Input signal receiving unit, input signal monitoring
Unit, output signal receiving unit, monitor signal output unit, multi-format monitoring unit；
The input signal receiving unit is communicated to connect with the input signal monitoring unit；
The output signal receiving unit is connected with the monitor signal output unit communication；
The multi-format monitoring unit is connected with the input signal monitoring unit and the monitor signal output unit communication.
2. system according to claim 1, it is characterised in that the input signal receiving unit includes：Main signal is received
Unit and space signal receiving unit；The main signal receiving unit is Digital Broadcasting Receiver with the space signal receiving unit
Machine.
3. system according to claim 1, it is characterised in that：The input signal monitoring unit includes：Solution is monitored in input
Code character part and switching transmission assembly；Decoding assembly and the switching transmission assembly communication connection are monitored in the input.
4. system according to claim 3, it is characterised in that：Decoding assembly is monitored in the input to be included：It is main to monitor decoding
Device and space signal monitor decoder.
5. system according to claim 3, it is characterised in that：The switching transmission assembly and the digital broadcast transmitter
Communication connection.
6. system according to claim 1, it is characterised in that：The output signal receiving unit includes：Signal sampling group
Part, the signal sampling component is communicated to connect with broadcast transmitting antenna.
7. system according to claim 1, the monitor signal output unit includes：Monitor signal output decoder.
8. system according to claim 1, the multi-format monitoring unit includes：Signal behavior component and signal monitoring group
Part；The signal behavior component and signal listening components communication connection.
9. system according to claim 8, it is characterised in that：The signal behavior component includes：Slot, output is inputted to insert
Groove and selection keyboard；The input slot, output slot and selection keyboard are arranged at the multi-format monitoring unit shell.
10. system according to claim 7, it is characterised in that：The signal listening components include：Monitoring loudspeaker；Institute
Loudspeaker is stated to be arranged at outside the output signal detection decoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720097842.2U CN206506534U (en) | 2017-01-25 | 2017-01-25 | Digital broadcast transmission monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720097842.2U CN206506534U (en) | 2017-01-25 | 2017-01-25 | Digital broadcast transmission monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506534U true CN206506534U (en) | 2017-09-19 |
Family
ID=59833206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720097842.2U Active CN206506534U (en) | 2017-01-25 | 2017-01-25 | Digital broadcast transmission monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206506534U (en) |
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2017
- 2017-01-25 CN CN201720097842.2U patent/CN206506534U/en active Active
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