CN107197245A - A kind of method of testing and system of set top box audio frequency and video - Google Patents
A kind of method of testing and system of set top box audio frequency and video Download PDFInfo
- Publication number
- CN107197245A CN107197245A CN201710546758.9A CN201710546758A CN107197245A CN 107197245 A CN107197245 A CN 107197245A CN 201710546758 A CN201710546758 A CN 201710546758A CN 107197245 A CN107197245 A CN 107197245A
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- video
- top box
- audio
- set top
- signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
Abstract
This application discloses a kind of method of testing and system of set top box audio frequency and video, it is related to technical field of measurement and test, the problem of complicated for the test system structure of the existing networking audio frequency and video of solution.Major Systems include：Digital television signal source, for sending digital television signal；The set top box to be tested being connected with the digital television signal source；The audio frequency and video measuring instrument and infrared remote control module being connected respectively with the set top box to be tested, the audio frequency and video measuring instrument is used to test the audio-video signal that the set top box to be tested is sent, and the infrared remote control module is used to launch the infrared signal control set top box to be tested；The audio frequency and video measuring instrument is connected with controller, and the controller is used for the test result for receiving the audio-video signal of the audio frequency and video measuring instrument output；The infrared remote control module is connected with the controller, and the controller is additionally operable to send control instruction to the infrared remote control module.During the application is mainly used in test set top box.
Description
Technical field
The application is related to technical field of measurement and test, more particularly to a kind of method of testing and system of set top box audio frequency and video.
Background technology
In order to watch wideband direct broadcast satellite TV, set top box is installed on a television set, direct broadcasting satellite is received by set top box
Signal.The basic function of set top box is to receive digital television broadcasting program, while having all broadcast and interactive multimedia should
Use function.Set top box realizes that the chief technology for receiving digital television broadcasting program includes：Channel is decoded, new source is decoded, embedding
Enter formula CPU (Central Processing Unit, central processing unit), MPEG-2 decompressions, software, display control and add solution
Disturb technology etc..
For set top box network access testing according to radio, TV and film industries technical standard GY/T 278-2014《Direct satellite direct broadcast system is integrated
Rcv decoder (encryption SD location type) technical requirements and measuring method》、GY/T 279—2014《Direct satellite direct broadcast system is integrated
Rcv decoder (SD satellite ground dual model) technical requirements and measuring method》、SJT11387-2008《Wideband direct broadcast satellite TV
Broadcast receiver system and Device-General specification》Relevant regulations.In relevant regulations, the requirement for set top box mainly includes work(
It can require and performance indications two parts, due to the many-side of functional requirement and the requirement of performance indications, to the analog audio of set top box
The test of video performance index also requires that various.
In the prior art, for the networking index test of set top box, GPIB (General Purpose are turned using USB
Interface Bus, general purpose interface bus) bus connection instrument, test system structure complexity, waste hardware resource, increase system
System failure risk, increases testing cost.
The content of the invention
This application provides a kind of method of testing and system of set top box audio frequency and video, to solve the survey of existing networking audio frequency and video
The problem of test system is complicated.
In a first aspect, this application provides a kind of test system of set top box audio frequency and video, the system includes：DTV is believed
Number source, for sending digital television signal；The set top box to be tested being connected with the digital television signal source；Treated respectively with described
The audio frequency and video measuring instrument and infrared remote control module of set top box connection are tested, the audio frequency and video measuring instrument is used to test described to be tested
The audio-video signal that set top box is sent, the infrared remote control module is used to launch the infrared signal control set top box to be tested；
The audio frequency and video measuring instrument is connected with controller, and the sound that the controller is used to receive the audio frequency and video measuring instrument output is regarded
The test result of frequency signal；The infrared remote control module is connected with the controller, and the controller is additionally operable to described infrared
Remote control module sends control instruction.
With reference in a first aspect, in first aspect in the first possible implementation, the infrared remote control module includes：With
USB turns the single-chip microcomputer of serial port circuit connection；The infrared launcher being connected with the single-chip microcomputer.
With reference in a first aspect, in second of possible implementation of first aspect, the controller passes through RS232 cables
It is connected with the audio frequency and video measuring instrument.
With reference in a first aspect, in first aspect in the third mode in the cards, the controller passes through USB line and institute
State the connection of infrared remote control module.
With reference in a first aspect, in the 4th kind of mode in the cards of first aspect, the audio frequency and video measuring instrument is VM700
Video measuring instrument.
Second aspect, present invention also provides a kind of method of testing of set top box audio frequency and video, applied to including DTV
Signal source, set top box to be tested, audio frequency and video measuring instrument, the test system of the set top box audio frequency and video of controller and infrared remote control module
System, methods described includes：The digital television signal source sends digital television signal；The controller is to the infrared remote control mould
Block sends control instruction；The infrared remote control module generates remote signal according to the control instruction；The set top box to be tested
The remote signal is received, and according to the remote signal, receives the digital television signal；The set top box parsing to be tested
The digital television signal, generates audio-video signal；The set top box to be tested sends the sound to the audio frequency and video measuring instrument
Vision signal；The audio frequency and video measuring instrument measures the audio-video signal, generates test result；The audio frequency and video measuring instrument is sent
The test result；The controller receives the test result, and generates test report according to the test result.
With reference to second aspect, in second aspect in the first mode in the cards, the digital television signal is TD-
4710 direct broadcasting satellite signals.
With reference to second aspect, in second of mode in the cards of second aspect, the controller is to described infrared distant
Control before module transmission control instruction, methods described includes：The controller generates testing scheme according to preset test case,
The controller generates the control instruction according to the testing scheme, and the control instruction is used to control the test-run a machine to be measured
The operations such as top box tuning, setting volume.
With reference to second aspect, in second aspect in the third mode in the cards, the infrared remote control module is according to institute
Control instruction is stated, remote signal is generated, including：Obtain the property parameters of the set top box to be tested；According to the property parameters,
Generate the remote signal of the control instruction.
With reference to second aspect, in the 4th kind of mode in the cards of second aspect, the measurement report is surveyed including audio
Examination report and video measurement report；The audio-frequency test report includes audio output amplitude, audio amplitude versus frequency characte, audio noise
Than, total harmonic distortion, audio left and right acoustic channels level difference and audio interchannel crosstalk；The video measurement report includes：Video
Output amplitude, audio video synchronization amplitude, the bright gain inequality of video color, the bright delay inequality of video color, video K systems, video are non-linear, video
The differential phase, the video differential gain, video signal to noise ratio, video amplitude versus frequency characte and the shake of video line leading edge synchronization.
The method of testing and system for a kind of set top box audio frequency and video that the application is provided, number is sent by digital television signal source
Word signal, controller sends control instruction and is generated remote signal by infrared remote control module and sent to set top box to be tested, to be measured
Test-run a machine top box receives data signal, and decoded audio-video signal is sent to audio frequency and video measuring instrument, and audio frequency and video measuring instrument is surveyed
The audio-video signal is tried, by the test result of audio-video signal and the test result is sent, controller receives test result and root
Measurement report is generated according to test result.Compared with prior art, the application can simplify the test system of networking audio frequency and video, realize
The automatic test of test set top box is treated, and generates test report.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of test system structure schematic diagram for set top box audio frequency and video that Fig. 1 provides for the application；
A kind of structural representation for infrared remote control module that Fig. 2 provides for the application；
A kind of method of testing flow chart for set top box audio frequency and video that Fig. 3 provides for the application；
A kind of method flow diagram for generation control instruction that Fig. 4 provides for the application；
A kind of method flow diagram for generation remote signal that Fig. 5 provides for the application.
Brief description of the drawings：11- digital television signal sources, 12- set top boxes to be tested, 13- audio frequency and video measuring instruments, 14- controllers,
15- infrared remote control modules, 151-USB turns serial port circuit, 152- single-chip microcomputers, 153- infrared launchers.
Embodiment
Referring to Fig. 1, a kind of test system structure schematic diagram of the set top box audio frequency and video provided for the application.Referring to Fig. 2, it is
A kind of structural representation for infrared remote control module that the application is provided.As shown in figure 1, the system includes：
Digital television signal source 11, for sending digital television signal；
The set top box to be tested 12 being connected with the digital television signal source 11；
The audio frequency and video measuring instrument 13 and infrared remote control module 15 being connected respectively with the set top box 12 to be tested, the sound are regarded
Frequency measuring instrument 13 is used to test the audio-video signal that the set top box to be tested 12 is sent, and the infrared remote control module 15 is used to send out
Penetrate infrared signal and control the set top box 12 to be tested；
The audio frequency and video measuring instrument 13 is connected with controller 14, and the controller 14 is used to receive the audio frequency and video measuring instrument
The test result of the audio-video signal of 13 outputs；
The infrared remote control module 15 is connected with the controller 14, and the controller 14 is additionally operable to the infrared remote control
Module 15 sends control instruction.
Digital television signal source 11 sends digital television signal to connected set top box 12 to be tested, test-run a machine to be measured
Top box receives digital television signal, and digital television signal is decoded, by decoded audio-video signal, sends to be measured
The audio frequency and video measuring instrument 13 that test-run a machine top box 12 is connected, audio frequency and video measuring instrument 13 does the survey of Voice ＆ Video index to audio-video signal
Amount.Wherein audio-frequency index and video selecting index SJT11387-2008 wideband direct broadcast satellite TVs broadcast receiver system and Device-General
The country such as specification, GY-T 278-2014 direct satellite direct broadcast system Integrated Receive Decoder technical requirements and measuring method general specification.
Requirement for set top box 12 to be tested is different, and the general specification of its audio frequency and video selecting index used is also differed.Audio frequency and video
Measuring instrument 13 sends instruction control by controller 14, for testing the audio-video signal that set top box 12 to be tested is sent, and will survey
Test result is sent to the controller 14 being connected with audio frequency and video measuring instrument 13, and controller 14 is exported for receiving audio frequency and video measuring instrument 13
Audio-video signal test result.Controller 14 is additionally operable to send control instruction to infrared remote control module 15.
The application uses integrated audio frequency and video measuring instrument 13, is done directly the test to audio-video signal, generation test knot
Really, and send to controller 14, controller 14 need not be again analyzed audio-video signal, it is only necessary to carried out according to test result
Differentiation, saves the debugging difficulty of testing time and test system, simplifies the test system of set top box audio frequency and video
Structure complexity.
Preferably, as shown in Fig. 2 the infrared remote control module 15 includes：
Turn the single-chip microcomputer 152 that serial port circuit 151 is connected with USB；
The infrared launcher 153 being connected with the single-chip microcomputer 152.
Infrared remote control module 15, set top box 12 to be tested is controlled for launching infrared signal, is substantially to be controlled
The IR remote controller for the set top box to be tested 12 that device 14 is controlled.Infrared remote control module 15 turns serial port circuit 151 including USB so that
Infrared remote control module 15 can directly receive the signal of USB interface transmission.Infrared remote control module 15 also includes single-chip microcomputer 152, this
In the single-chip microcomputer that actually includes of single-chip microcomputer 152 and its periphery necessary circuitry, the control function for realizing single-chip microcomputer can be made.It is red
Outer remote control module 15 also includes infrared launcher 153, and infrared launcher 153 can send infrared signal so as to be tested
Set top box 12 receives infrared signal, and makes corresponding operation.
Preferably, the controller 14 is connected by RS232 cables with the audio frequency and video measuring instrument 13.
RS232, is the communication interface on personal computer, is a kind of general-purpose interface.Controller 14 is connected by RS232 cables
Audio frequency and video measuring instrument 13 is connect, it is easy to connect, it is not necessary to configure converter, the complexity of test system is reduced, cost is low.
Preferably, the controller 14 is connected by USB line with the infrared remote control module 15.
USB line, is a kind of general-purpose interface.Include shifting to an earlier date before USB turns serial port circuit in infrared remote control module 15, it is infrared
Remote control module can directly receive the signal of USB line transmission.
Preferably, the audio frequency and video measuring instrument 13 is VM700 video measuring instrument.
Controller 14 sends control instruction control VM700 video measurings instrument measurement audio-video signal, and controller 14 is from VM700
Video measuring instrument read test result.VM700 video measuring instrument, is widely applied especially in set top box testing field.Audio frequency and video are surveyed
Measure instrument 13 and use general measuring apparatus, reduce the complexity of test system.
Referring to Fig. 3, the method for testing flow chart of a kind of set top box audio frequency and video provided for the application, applied to including numeral
TV signal source, set top box to be tested, audio frequency and video measuring instrument, the test of the set top box audio frequency and video of controller and infrared remote control module
System.As shown in figure 3, this method includes：The digital television signal source sends digital television signal；
Step 301, controller sends control instruction to infrared remote control module.
Controller is the center of set top box audio frequency and video test system, and whole set top box testing system is joined by controller
Adjust.Controller sends control instruction to infrared remote control module, and the control instruction can indicate set-top-box opening to be tested, pass
The operations such as machine, zapping, volume are set, intensity of illumination setting.
Step 302, infrared remote control module generates remote signal according to control instruction.
Remote signal, is the infrared signal for referring to be recognized by set top box to be tested, corresponding with control instruction.It is infrared distant
The function of controlling module is that control instruction is converted into the remote signal that set top box to be tested can be recognized.
Step 303, set top box to be tested receives remote signal, and according to remote signal, receives digital television signal.
Digital television signal, is sent by digital television signal source, and digital television signal preferably is TD-4710 direct broadcasting satellites
Signal.Set top box to be tested parses remote signal, and receive numeral according to the instruction of remote signal after remote signal is received
TV signal.
Step 304, set top box parsing digital television signal to be tested, generates audio-video signal.
The function of set top box to be tested is exactly that digital television signal is decoded, to cause TV connects can watch TV
Program.Set top box to be tested parses digital television signal, generates audio-video signal.
Step 305, set top box to be tested sends audio-video signal to audio frequency and video measuring instrument.
Set top box to be tested sends audio-video signal to audio frequency and video measuring instrument.
Step 306, audio frequency and video measuring instrument measurement audio-video signal, generates measurement result.
Step 307, audio frequency and video measuring instrument sends test result.
Step 308, controller receives test result, and generates test report according to test result.
Measurement report includes audio-frequency test report and video measurement report.Wherein audio-frequency test report includes audio output
Amplitude, audio amplitude versus frequency characte, audio signal to noise ratio, total harmonic distortion, audio left and right acoustic channels level difference and audio interchannel crosstalk；
Video measurement report includes：Video frequency output amplitude, audio video synchronization amplitude, the bright gain inequality of video color, the bright delay inequality of video color, video
K systems, video are non-linear, before the video differential phase, the video differential gain, video signal to noise ratio, video amplitude versus frequency characte and video line
Along synchronization jitter.Controller generates test report, judges whether the audio frequency and video index of corresponding set top box to be tested is qualified.
Referring to Fig. 4, a kind of method flow diagram of the generation control instruction provided for the application.In the base of method shown in Fig. 3
On plinth, step 301 controller is sent to infrared remote control module before control instruction, as shown in figure 4, method includes：
Step 401, controller generates testing scheme according to preset test case.
Selected test case includes test event, testing standard type, set top box type to be measured etc., is surveyed according to selected
Example on probation generates corresponding testing scheme.
Step 402, controller generates control instruction according to testing scheme.
Control instruction is used to control set top box tuning to be tested, sets the operation such as volume.Testing scheme is the totality of test
Testing process, and control instruction is the specific execution order of testing scheme.
The method of testing of set top box to be tested can be unified using this implementation, testing efficiency is improved and test is accurate
Degree.
Referring to Fig. 5, the method flow diagram of a kind of generation remote signal provided for the application, in the base of method shown in Fig. 3
On plinth, step 302, infrared remote control module generates remote signal according to control instruction, as shown in figure 5, including：
Step 501, the property parameters of set top box to be tested are obtained.
Property parameters, refer to the remote signal coding corresponding with set-top box functionality to be tested, to be tested in order to control
Set top box.
Step 502, according to property parameters, the remote signal of control instruction is generated.
According to property parameters, the corresponding remote signal of generation control instruction.
Using this implementation, it ensure that set top box to be tested can receive remote signal, and do according to remote signal
Go out response.
In the specific implementation, the present invention also provides a kind of computer-readable storage medium, wherein, the computer-readable storage medium can be stored
There is program, the program may include the part or all of step in each embodiment for the method for calling that the present invention is provided when performing.Institute
The storage medium stated can be magnetic disc, CD, read-only memory (English：Read-only memory, referred to as：ROM) or with
Machine storage memory (English：Random access memory, referred to as：RAM) etc..
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Understood based on such, the technical scheme in the embodiment of the present invention substantially or
Say that the part contributed to prior art can be embodied in the form of software product, the computer software product can be deposited
Storage is in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are to cause a computer equipment (can be with
It is personal computer, server, or network equipment etc.) perform some part institutes of each of the invention embodiment or embodiment
The method stated.
Between the embodiment of each in this specification identical similar part mutually referring to.Invention described above is real
The mode of applying is not intended to limit the scope of the present invention..
Claims (10)
1. a kind of test system of set top box audio frequency and video, it is characterised in that the system includes：
Digital television signal source (11), for sending digital television signal；
The set top box to be tested (12) being connected with the digital television signal source (11)；
The audio frequency and video measuring instrument (13) and infrared remote control module (15) being connected respectively with the set top box (12) to be tested, the sound
Video measuring instrument (13) is used to test the audio-video signal that the set top box to be tested (12) sends, the infrared remote control module
(15) it is used to launch the infrared signal control set top box (12) to be tested；
The audio frequency and video measuring instrument (13) is connected with controller (14), and the controller (14) is used to receive the audio frequency and video measurement
The test result of the audio-video signal of instrument (13) output；
The infrared remote control module (15) is connected with the controller (14), and the controller (14) is additionally operable to described infrared distant
Control module (15) and send control instruction.
2. the system as claimed in claim 1, it is characterised in that the infrared remote control module (15) includes：
Turn the single-chip microcomputer (152) that serial port circuit (151) is connected with USB；
The infrared launcher (153) being connected with the single-chip microcomputer (152).
3. the system as claimed in claim 1, it is characterised in that the controller (14) is regarded by RS232 cables with the sound
Frequency measuring instrument (13) is connected.
4. system as claimed in claim 2, it is characterised in that the controller (14) passes through USB line and the infrared remote control
Module (15) is connected.
5. the system as claimed in claim 1, it is characterised in that the audio frequency and video measuring instrument (13) is VM700 video measuring instrument.
6. a kind of method of testing of set top box audio frequency and video, it is characterised in that applied to including digital television signal source, test-run a machine to be measured
Top box, audio frequency and video measuring instrument, the test system of the set top box audio frequency and video of controller and infrared remote control module, methods described include：
The digital television signal source sends digital television signal；
The controller sends control instruction to the infrared remote control module；
The infrared remote control module generates remote signal according to the control instruction；
The set top box to be tested receives the remote signal, and according to the remote signal, receives the digital television signal；
The set top box to be tested parses the digital television signal, generates audio-video signal；
The set top box to be tested sends the audio-video signal to the audio frequency and video measuring instrument；
The audio frequency and video measuring instrument measures the audio-video signal, generates test result；
The audio frequency and video measuring instrument sends the test result；
The controller receives the test result, and generates test report according to the test result.
7. method as claimed in claim 6, it is characterised in that the digital television signal is TD-4710 direct broadcasting satellite signals.
8. method as claimed in claim 6, it is characterised in that the controller sends control to the infrared remote control module and referred to
Before order, methods described includes：
The controller generates testing scheme according to preset test case；
The controller generates the control instruction according to the testing scheme, and the control instruction is described to be measured for controlling
The operations such as test-run a machine top box tuning, setting volume.
9. method as claimed in claim 6, it is characterised in that the infrared remote control module is according to the control instruction, generation
Remote signal, including：
Obtain the property parameters of the set top box to be tested；
According to the property parameters, the remote signal of the control instruction is generated.
10. method as claimed in claim 6, it is characterised in that the measurement report includes audio-frequency test report and video is surveyed
Examination report；
The audio-frequency test report includes audio output amplitude, audio amplitude versus frequency characte, audio signal to noise ratio, total harmonic distortion, audio
Left and right acoustic channels level difference and audio interchannel crosstalk；
The video measurement report includes：When video frequency output amplitude, audio video synchronization amplitude, the bright gain inequality of video color, video color are bright
Prolong poor, video K systems, non-linear video, the video differential phase, the video differential gain, video signal to noise ratio, video amplitude versus frequency characte and
Video line leading edge synchronization is shaken.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546758.9A CN107197245A (en) | 2017-07-06 | 2017-07-06 | A kind of method of testing and system of set top box audio frequency and video |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546758.9A CN107197245A (en) | 2017-07-06 | 2017-07-06 | A kind of method of testing and system of set top box audio frequency and video |
Publications (1)
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| CN107197245A true CN107197245A (en) | 2017-09-22 |
Family
ID=59881933
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| CN201710546758.9A Pending CN107197245A (en) | 2017-07-06 | 2017-07-06 | A kind of method of testing and system of set top box audio frequency and video |
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| CN107968943A (en) * | 2017-12-18 | 2018-04-27 | 深圳市双翼科技股份有限公司 | Set-top box test method and terminal device |
| CN108289218A (en) * | 2017-12-28 | 2018-07-17 | 深圳市九洲电器有限公司 | A kind of audio and video test method and system and audio and video test equipment |
| CN111586397A (en) * | 2019-02-19 | 2020-08-25 | 卓望数码技术（深圳）有限公司 | Dial measuring device |
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