CN101106730A - Signal testing method for video/audio receiving device - Google Patents
Signal testing method for video/audio receiving device Download PDFInfo
- Publication number
- CN101106730A CN101106730A CNA2006100988115A CN200610098811A CN101106730A CN 101106730 A CN101106730 A CN 101106730A CN A2006100988115 A CNA2006100988115 A CN A2006100988115A CN 200610098811 A CN200610098811 A CN 200610098811A CN 101106730 A CN101106730 A CN 101106730A
- Authority
- CN
- China
- Prior art keywords
- audio
- video
- signal
- receiving device
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a signal testing method for video receivers, which tests the signal characteristics of output images and sound signals as well as functions for at least one video receiver in a video testing system. The video testing system includes a PXI host machine and a switch module, wherein the PXI host machine is a system accessory instrument capable of supporting multiple measurements and data retrieving, the switch module is a self-made modular signaling channel control module. Therefore, firstly develop a test database, and then execute the test database to automatically control the switch module and the PXI host machine to conduct functions of transmission and signal retrieving, to test all electrical properties and system functions of the video receivers, to make an judgment based on comparison with the predetermined video specification parameters and audio specification parameters in the video and audio testing environment, and further to provide a clear judgment display for users to quickly and rightly obtain test results.
Description
Technical field
The present invention is relevant with testing of equipment, is meant a kind of method of testing of judging video/audio receiving device System Operation and signal transfer functions especially.
Background technology
In the audio-visual receiving equipment, manufacturer guarantees product except need to be had the normal systemic-function running, the quality factor of signal transmission is a big index of the high-quality demand of product more, especially in present day by day general Digital Television, main demand is and presents high image quality, the video-audio signal of high tone quality, therefore promptly there is rigorous specification limits in the manufacturer of DTV receiver for the electrical characteristics test of audio frequency and vision signal, for reaching the signal transmission integrity, on the test event except require the hardware operation function of receiver own normally, the audio frequency of output and vision signal also need meet audio frequency and the vision signal specification that digital television system end is originally sent.
In the test process with existing product line, want the electrical characteristic of measurement signal transmission simultaneously, judge hardware operation functional interface and the test of hardware system integrating operation etc., often need use multistage mode just can reach complete test program, especially whether normally the measurement standard of transmission signals has only the output of the signal of judgement mostly, the electrical numerical value of thin portion is classified the display items display of test process hardly as, need when product has actual electrically problem, just to do further electrically measure analysis in specific measurement mode, therefore to reach hardware, test complete on system and the electrical characteristic is judged, not only need expend a large amount of manpowers and equipment, and personnel's quality, mental status can directly have influence on the correctness of test, long-time down probably because people's sense tired out, manpower or operation of equipment inconvenience etc., cause the test carelessness can't effectively determine the product quality quality, gently then cause test result incorrect, needing cost to produce tests man-hour again, heavy then cause the damage of instrument, lost efficacy, influence overall process efficient, and if take expending of human cost now into account, so carry out hardware with manual type, system and electric on complete test, also increase production cost and do not meet economic benefit.
Summary of the invention
Therefore, main purpose of the present invention is the signal testing method that is to provide a kind of video/audio receiving device, the effective detection hardware apparatus function of use integrating of test macro also can completely read the electric numerical value of signal transmission, to reach automatically and measuring program fast.
Take off purpose for before reaching, the signal testing method of a kind of video/audio receiving device provided by the present invention, in order to test at least one video/audio receiving device, this video/audio receiving device is to have an audio-visual receiving terminal group in order to receiving digital television signal, and can be from a video output terminals group and audio output group difference image output and voice signal, in order to the characteristics of signals of testing this video/audio receiving device image output and voice signal and functional operation thereof normally whether this signal testing method can be, it is characterized in that, include following steps:
A, provide a PXI main frame, this PXI main frame to include a control module and a DAQ module, but the system tool of development sequence is installed in this control module and has an input and output control end group, this data acquisition module has a simulation receiving terminal group;
B, prepare all die change pieces, this handover module is to have a control circuit, an audio-visual input group, an audio-visual output group, a video inputs group, an audio input end group, an analog output group, and this control circuit, this audio-visual output group, this video inputs group, this audio input end group and this analog output group are electrically connected this input and output control end group, this audio-visual receiving terminal group, this video output terminals group, this audio output group and this simulation receiving terminal group respectively;
C, in this control module exploitation one test database, this test database produces a video measurement environment and an audio-frequency test environment;
D, in this test database, define the video specification parameter and the audio frequency specifications parameters of many group particular ranges;
E, start this test database, and the audio-visual input group of this handover module is imported above-mentioned digital television signal certainly, this video/audio receiving device is promptly from this audio-visual this digital television signal of receiving terminal group of received, and this video output terminals group and audio output group are distinguished output image signal and voice signal video inputs group and the audio input end group to this handover module certainly;
F, this test database are carried out this audio-frequency test environment, this input and output control end group is promptly sent and is controlled signal to this control circuit, make the analog output group of this handover module send the tut signal to this DAQ module, this audio-frequency test environment can show the electrical characteristic parameter of this voice signal, and with above-mentioned respectively organize audio frequency specifications parameter comparison show this voice signal normally whether;
G, this test database are carried out this video measurement environment, this input and output control end group is promptly sent and is controlled signal to this control circuit, make the analog output group of this handover module send above-mentioned signal of video signal to this DAQ module, this video measurement environment can show the electrical characteristic parameter of this signal of video signal, and with above-mentioned respectively organize video specification parameter comparison show this signal of video signal normally whether.
Wherein be to develop this test database among the step c with the Labview program means.
Wherein this video/audio receiving device is a digital TV set-top box, in order to receive and demodulate digital TV signal.
Wherein this video/audio receiving device also has a digital fiber joint, among the step b this digital fiber joint is connected to a sound card with optical fiber, and this sound card is electrically connected to this input and output control end group.
Wherein this test database has also produced a digital audio test environment among the step c, in this test database, define the digital audio specifications parameter of many group particular ranges in the steps d, this digital fiber joint is exported the entrained digital tone source signal of above-mentioned digital television signal to this sound card by optical-fibre communications among the step e, and this sound card transfers above-mentioned optical-fibre communications signal to electric signal and handles out this digital tone source signal.
Wherein this test database is carried out this digital audio test environment after the step e, this input and output control end group promptly receives this digital tone source signal, this digital audio test environment shows the electrical characteristic parameter of this digital tone source signal, and with above-mentioned respectively organize digital audio specifications parameter comparison show this digital tone source signal normally whether.
Wherein this input and output control end group has a command port, and this command port electrically connects this video/audio receiving device with RS 232 interface transmission standards among the step b.
Wherein have a plurality of function buttons on this video/audio receiving device panel for operation, this test database has also produced a panel test environment among the step c, this test database is carried out this panel test environment after the step e, this panel test environment promptly shows actual in respectively this function button on this video/audio receiving device, when on this video/audio receiving device, pressing respectively this function button, this command port receives RS 232 specification signals that this video/audio receiving device is sent, and this panel test environment shows the corresponding respectively test mode of this function button.
Wherein in order to test two these video/audio receiving devices, two these video/audio receiving devices can receive the digital television signal with different frequency scope, corresponding respectively each frequency range is carried out demodulation process, respectively this video/audio receiving device also has a Digital Television output group, and the Digital Television output group of first this video/audio receiving device electrically connects the audio-visual receiving terminal group of second this video/audio receiving device among the step b.
Wherein this DAQ module is distinguished the voice signal of two different frequencies that this video/audio receiving device is exported and capture among the step f, and this audio-frequency test environment promptly shows the respectively electrical characteristic parameter of this video/audio receiving device institute output sound signal.
Wherein respectively this video/audio receiving device also has a digital fiber joint, will be respectively among the step b this digital fiber joint be connected to a sound card with optical fiber, this sound card is electrically connected to this input and output control end group.
Wherein this test database has also produced a digital audio test environment among the step c, in this test database, define the digital audio specifications parameter of many group particular ranges in the steps d, among the step e respectively this digital fiber joint export each entrained frequency of above-mentioned digital television signal by optical-fibre communications the digital tone source signal to this sound card, this sound card transfers above-mentioned optical-fibre communications signal to this digital tone source signal that electric signal is handled out each frequency.
Wherein this test database is carried out this digital audio test environment after the step e, this input and output control end group promptly receives two these digital tone source signals, this DAQ module is come out two these digital tone source signal distinguishings and acquisition, this digital audio test environment shows the respectively electrical characteristic parameter of this digital tone source signal, and with above-mentioned respectively organize the comparison of digital audio specifications parameter show this digital tone source signal normally whether.
Description of drawings
Below, cooperate some accompanying drawings to enumerate a preferred embodiment, in order to composition member of the present invention and effect are described further, wherein used brief description of drawings is as follows, wherein:
Fig. 1 is the device schematic diagram of first preferred embodiment provided by the present invention;
Fig. 2 is the end view that above-mentioned first preferred embodiment provides the PXI main frame;
Fig. 3 is the structural representation of above-mentioned first control module that preferred embodiment provides;
Fig. 4 is the executive's interface schematic diagram of above-mentioned first test database that preferred embodiment provides;
Fig. 5 is the executive's interface schematic diagram that above-mentioned first preferred embodiment provides the audio-frequency test environment;
Fig. 6 is the executive's interface schematic diagram that above-mentioned first preferred embodiment provides the digital audio test environment;
Fig. 7 is the executive's interface schematic diagram that above-mentioned first preferred embodiment provides the video measurement environment;
Fig. 8 is the executive's interface schematic diagram of the analysis environments of above-mentioned first R/G/B that preferred embodiment provides;
Fig. 9 is the executive's interface schematic diagram that above-mentioned first preferred embodiment provides the panel test environment;
Figure 10 is the device schematic diagram of second preferred embodiment provided by the present invention;
Figure 11 is the executive's interface schematic diagram of above-mentioned second test database that preferred embodiment provides;
Figure 12 is the executive's interface schematic diagram that above-mentioned second preferred embodiment provides the audio-frequency test environment;
Figure 13 is the executive's interface schematic diagram that above-mentioned second preferred embodiment provides the digital audio test environment.
Embodiment
See also an audio-visual test macro 1 that Figure 1 shows that first preferred embodiment provided by the present invention, include a PXI main frame 10, all die change pieces 20 and a video/audio receiving device 30 to be measured, wherein:
Cooperate and consult Fig. 2, this PXI main frame 10 proposes a kind of system's additional card instrument of supporting to measure in many ways with DAQ for American National Instrument Instruments company, as being provided as the PXI cabinet of NIPXI-1031 type in the present embodiment, include a control module 11 and a data acquisition module 12, this control module 11 is for being compatible with the microcomputer controller of PXI system, as being provided as the PXI bist controller of NIPXI-8196 specification in the present embodiment, cooperate and consult Fig. 3, the program development tools of Labview7.1 system is installed in this control module 11, and has an input and output control end group 111, include a plurality of USB port 111a that are located at the USB control interface and be located at a command port 111b of RS 232 interfaces, cooperate and consult Fig. 1, this DAQ module 12 is in order to being the dynamic measurement digitizer of numerical data signal with analog signal quickly picking and conversion process, as being provided as the oscilloscope capture card of NIPXI-5114 specification in the present embodiment, have a simulation receiving terminal group 121, be the connector of BNC transmission line specification.
This handover module 20 is provided with a control circuit 21, one audio-visual input group 22, one audio-visual output group 23, a video inputs group 24, an audio input end group 25, an analog output group 26 and a power end group 27, these control circuit 21 may command are switched the switch of each signal channel in this handover module 20, as the NIUSB-6501 that is provided in the present embodiment is that the numeral that is compatible with the PXI system specification is exported into control assembly, this power end group 27 exchanges power supply for connecting, and provides this video/audio receiving device 30 required AC power equally.
This video/audio receiving device 30 is in order to receive the also set-top box of demodulate digital TV signal, has an audio-visual receiving terminal group 31, one digital fiber joint 32, one video and an audio output group 33,34, this audio-visual receiving terminal group 31 is in order to receive above-mentioned digital television signal, can export analog image and voice signal respectively from this video output terminals group 33 and audio output group 34, this digital fiber joint 32 is for to export the entrained digital tone source signal of above-mentioned digital television signal by optical-fibre communications, be to connect a sound card 35 with optical fiber, this sound card 35 is in order to change above-mentioned optical-fibre communications signal to present digital home's theater audio of high-quality compress technique.
Cooperate and consult Fig. 1, this control circuit 21 is electrically connected the USB port 111a of this PXI main frame 10, this audio-visual output group 23 electrically connects the audio-visual receiving terminal group 31 of this video/audio receiving device 30, this video inputs group 24 electrically connects the video output terminals group 33 of this video/audio receiving device 30, this audio input end group 25 electrically connects the audio output group 34 of this video/audio receiving device 30, this analog output group 26 electrically connects the simulation receiving terminal group 121 of this PXI main frame 10, this power end group 27 electrically connects general family expenses and exchanges power supply, this sound card 35 electrically connects the USB port 111a of this PXI main frame 10, and the command port 111b of this control module 11 electrically connects the instruction PORT COM (not shown) of this video/audio receiving device 30, can carry out following step to test the characteristics of signals and the functional operation thereof of these video/audio receiving device 30 image outputs and voice signal:
1, in this control module 11, uses Labview 7.1 exploitations one test database 40, with reference to Fig. 4, promptly show a hardware in the database environment of being developed and connect test function 41, an analogue audio frequency test function 42, a digital audio test function 43, an analog video test function 44, a panel operation testing function 45 and a status Bar 46.
2, in this test database 40, define video specification parameter, simulation and the digital audio specifications parameter of many group particular ranges.
3, start this test database 40, the command port 111b of this control module 11 then sends and starts function command to this video/audio receiving device 30, behind the above-mentioned digital television signal of audio-visual input group 22 inputs of this handover module 20, this audio-visual output group 23 is promptly exported this digital television signal, audio-visual receiving terminal group 31 by this video/audio receiving device 30 receives, and certainly this video output terminals group 33 and audio output group 34 respectively output image signal and voice signal to the video inputs group 24 and the audio input end group 25 of this handover module 20.
4, this test database 40 enters above-mentioned analogue audio frequency test function 42, this control module 11 promptly sees through USB port 111a and sends digital controlled signal to this control circuit 21, makes the analog output group 26 of this handover module 20 send the tut signal to this DAQ module 12.
5, this test database 40 is carried out an audio-frequency test environment 420, with reference to Fig. 5, the audio signal that on behalf of this audio output group 34, central sinusoidal waveform 421 promptly exported, the below then shows its sound peak swing, test datas such as sound frequency 422, and capture test value by the numerical analysis assembly at waveform in this test database 40, compare with defined those analogue audio frequency specifications parameters of step 2, whether the audio output group 34 that therefore can verify this video/audio receiving device 30 can normal operation and is inferred whether compliant of its electrical characteristic, if all meet then and can green light occur in PASS aspect 423, otherwise amber light can occur, and the red light caution all can not appear in each the electric project by test specification.
6, this test database 40 enters above-mentioned digital audio test function 43,32 of the digital fiber joints of this video/audio receiving device 30 are exported the entrained digital tone source signal of above-mentioned digital television signal to this sound card 35 with the optical-fibre communications pattern, this sound card 35 also transfers the optical-fibre communications signal to electric signal analyzing this digital tone source signal, is received by the USB port 111a of this control module 11.
7, this test database 40 is carried out a digital audio test environment 430, with reference to Fig. 6, the digital tone source signal that on behalf of this sound card 35, central sinusoidal waveform 431 promptly exported, the below then shows its sound peak swing, test datas such as sound frequency 432, and capture test value by the function of wave numerics analytic unit in this test database 40, compare with defined those digital audio specifications parameters of step 2, therefore can verify that the digital fiber joint 32 of this video/audio receiving device 30 and this sound card 35 whether can normal operations and infer whether compliant of its electrical characteristic, if all meet then and can green light occur in PASS display items 433, otherwise amber light can occur, and the red light caution all can not appear in each the electric project by test specification.
8, this test database 40 enters above-mentioned analog video test function 44, this control module 11 promptly sees through USB port 111a and sends digital controlled signal to this control circuit 21, makes the analog output group 26 of this handover module 20 send above-mentioned signal of video signal to this DAQ module 12.
9, this test database 40 is carried out a video measurement environment 440, with reference to Fig. 7, the vision signal that on behalf of this video output terminals group 33, central colour bar waveform 441 promptly exported, the below then shows the test data 442 of GTG and three-primary colours (R/G/B), and capture test value by the numerical analysis assembly at waveform in this test database 40, compare with defined those video specification parameters of step 2, whether the video output terminals group 33 that therefore can verify this video/audio receiving device 30 can normal operation and is inferred whether compliant of its electrical characteristic, if all meet then and can green light occur in PASS display items 443, otherwise amber light can occur, and the red light caution all can not appear in each the electric project by test specification.
10, this test database 40 further cooperates the characteristic that triggers CVBS in this DAQ module 12 with the function of waveform acquisition component, carry out the analysis environments of R/G/B in regular turn, with reference to Fig. 8, every kind of color of R/G/B is carried out waveform judgement and color range differentiation in regular turn separately, and compare according to the R/G/B specification standards of defined those video specification parameters of step 2 and the numerical value that is captured and to meet standard requirements judging whether, if all meet then and can green light occur in the PASS display items, otherwise amber light can occur, and the red light caution all can not appear in each the electric project by test specification.
11, this test database 40 enters above-mentioned panel operation test function 45, and carry out a panel test environment 450, with reference to Fig. 9, be to show that reality is corresponding to supplying all functions button 36 of operation on these video/audio receiving device 30 panels, initial each instruction cresset all is the state of taking on a red color, when pressing any function button 36 in these video/audio receiving device 30 panels, the instruction PORT COM of this video/audio receiving device 30 promptly sees through RS232 and transmits the command port 111b of digital signal to this control module 11, and more correctly differentiate, if correctly then can present green, test process does not limit any key sequencing, and each function button 36 is all tested the system of finishing and just can be finished.
12, this test database 40 is got back to initial test interface as shown in Figure 4, this hardware connect test function 41 be display system hardware connect normally whether, this analogue audio frequency test function 42, digital audio test function 43, analog video test function 44 and panel operation test function 45 are whether the final test of step display 4 to 11 is good fully, if all meet then and can show whole test mode in this status Bar 46, and in the PASS display items green light appears, otherwise amber light can occur, and the red light caution all can not appear in each the electric project by test specification.
Therefore the present invention sees through all electrical and apparatus function tests that this test database 40 automatically performs this video/audio receiving device 30 fully, test environment shows the characteristic of this video/audio receiving device 30 signals transmission with signal waveform, and have and clearly differentiate cresset and show test results, for the user fast and correct acquisition test result.
What deserves to be mentioned is, when the digital television system end can provide the digital television signal of wideband section more or system, receive client and then often need be combined with the demodulation process that two set-top box are made subordinate's different frequency range, therefore on device to test, then can consult as shown in figure 10, the audio-visual test macro of testing at a plurality of video/audio receiving devices for the present invention's second preferred embodiment provide 2, then also has a video/audio receiving device 50 than above-mentioned first preferred embodiment, be identical structure to be arranged with this video/audio receiving device 30, has an audio-visual receiving terminal group 51, one digital fiber joint 52, one video, one audio output group 53,54 and a plurality of function button 55, therefore more electrically connect a Digital Television output group 37 of this video/audio receiving device 30 on system connects with this audio-visual receiving terminal group 51, this digital fiber joint 52 electrically connects this sound card 35, this video output terminals group 53 electrically connects the video inputs group 24 of this handover module 20, this audio output group 54 electrically connects the audio input end group 25 of this handover module 20, and a USB port 111a ' of this control module 11 electrically connects the instruction PORT COM (not shown) of this video/audio receiving device 50, and the step that can carry out similar the foregoing description is to test two these video/audio receiving devices 30, the characteristics of signals of 50 image outputs and voice signal and functional operation thereof:
In this control module 11 exploitations one test database 60, with reference to Figure 11, than the step 1 of above-mentioned the foregoing description many a communication setting 61 and a channel test function 62, this communication setting 61 is set the command channel of the USB port 111a ' of these control modules 11 as this video/audio receiving device 50.
The digital television signal of handling different frequency range at two these video/audio receiving devices 30,50 in this test database 60 defines video specification parameter, simulation and the digital audio specifications parameter of many group particular ranges respectively.
Start this test database 60, for also sending, the USB port 111a ' of this control module 11 starts function command than the step 3 of the foregoing description to this video/audio receiving device 50, the audio-visual output group 37 of this video/audio receiving device 30 is sent the audio-visual receiving terminal group 51 of above-mentioned digital television signal to this video/audio receiving device 50, and certainly this video output terminals group 53 and audio output group 54 respectively output image signal and voice signal to the video inputs group 24 and the audio input end group 25 of this handover module 20.
This test database 60 enters this analogue audio frequency test function 42, sends the voice signal of two these video/audio receiving devices 30,50 to this DAQ module 12 than the step 4 of the foregoing description for the analog output group 26 of this handover module 20.
This test database 60 is carried out an audio-frequency test environment 420 ', with reference to Figure 12, the voice signal of two these video/audio receiving device 30,50 different frequencies can be distinguished for this data acquisition module 12 and acquisition be come out than the step 5 of the foregoing description, thereby more this video/audio receiving devices 50 sinusoidal waveform 421 ', test data 422 ' and the PASS display items 423 ' exported.
This test database 60 enters this digital audio test function 43, the optical-fibre communications signal that can simultaneously two these digital fiber joints 32,52 be exported for this sound card 35 than the step 6 of the foregoing description transfers electric signal to, and is received by the USB port 111a of this control module 11.
This test database 60 is carried out a digital audio test environment 430 ', with reference to Figure 13, the voice signal of two these video/audio receiving device 30,50 different frequencies can be distinguished for this data acquisition module 12 and acquisition be come out than the step 7 of the foregoing description, thereby more this video/audio receiving devices 50 sinusoidal waveform 431 ', test data 432 ' and the PASS display items 433 ' exported.
This test database 60 enters this analog video test function 44, sends the signal of video signal of two these video/audio receiving devices 30,50 to this DAQ module 12 than the step 8 of the foregoing description for the analog output group 26 of this handover module 20.
60 pairs two these video/audio receiving devices 30,50 of this test database are carried out step 9 and the step 10 as above-mentioned embodiment respectively, to finish the image test function of two these video/audio receiving devices 30,50.
This test database 60 enters this panel operation test function 45, two these video/audio receiving devices 30,50 is carried out respectively as the step 11 of above-mentioned embodiment, to finish the panel test function of two these video/audio receiving devices 30,50.
This test database 60 is got back to initial test interface as shown in figure 11, step 12 than the foregoing description promptly shows two these video/audio receiving devices 30 for this hardware connects in the test function 41,50 be connected with system hardware normally whether, this channel test function 62 promptly shows two these video/audio receiving devices 30, normally whether hardware connects between 50, this analogue audio frequency test function 42, digital audio test function 43, analog video test function 44 and panel operation test function 45 are respectively this video/audio receiving device 30 of step display 4 to 10, whether 50 final tests are good fully, if all meet then and can show whole test mode in this status Bar 46, and in the PASS display items green light appears, otherwise amber light can occur, and the red light caution all can not appear in each the electric project by test specification.
Therefore audio-visual test macro provided by the present invention can not limit the quantity of video/audio receiving device, to the digital television signal of wideband section or system more automatically perform all video/audio receiving devices electrically and the apparatus function test.
Only, above-described, only be preferable possible embodiments of the present invention, so the equivalent structure that every application specification of the present invention and claim are done changes, ought to be included in the claim of the present invention.
Claims (13)
1. the signal testing method of a video/audio receiving device, in order to test at least one video/audio receiving device, this video/audio receiving device is to have an audio-visual receiving terminal group in order to receiving digital television signal, and can be from a video output terminals group and audio output group difference image output and voice signal, in order to the characteristics of signals of testing this video/audio receiving device image output and voice signal and functional operation thereof normally whether this signal testing method can be, it is characterized in that, include following steps:
A, provide a PXI main frame, this PXI main frame to include a control module and a DAQ module, but the system tool of development sequence is installed in this control module and has an input and output control end group, this data acquisition module has a simulation receiving terminal group;
B, prepare all die change pieces, this handover module is to have a control circuit, an audio-visual input group, an audio-visual output group, a video inputs group, an audio input end group, an analog output group, and this control circuit, this audio-visual output group, this video inputs group, this audio input end group and this analog output group are electrically connected this input and output control end group, this audio-visual receiving terminal group, this video output terminals group, this audio output group and this simulation receiving terminal group respectively;
C, in this control module exploitation one test database, this test database produces a video measurement environment and an audio-frequency test environment;
D, in this test database, define the video specification parameter and the audio frequency specifications parameters of many group particular ranges;
E, start this test database, and the audio-visual input group of this handover module is imported above-mentioned digital television signal certainly, this video/audio receiving device is promptly from this audio-visual this digital television signal of receiving terminal group of received, and this video output terminals group and audio output group are distinguished output image signal and voice signal video inputs group and the audio input end group to this handover module certainly;
F, this test database are carried out this audio-frequency test environment, this input and output control end group is promptly sent and is controlled signal to this control circuit, make the analog output group of this handover module send the tut signal to this DAQ module, this audio-frequency test environment can show the electrical characteristic parameter of this voice signal, and with above-mentioned respectively organize audio frequency specifications parameter comparison show this voice signal normally whether;
G, this test database are carried out this video measurement environment, this input and output control end group is promptly sent and is controlled signal to this control circuit, make the analog output group of this handover module send above-mentioned signal of video signal to this DAQ module, this video measurement environment can show the electrical characteristic parameter of this signal of video signal, and with above-mentioned respectively organize video specification parameter comparison show this signal of video signal normally whether.
2. according to the signal testing method of claim 1 a described video/audio receiving device, it is characterized in that, wherein is to develop this test database with the Labview program means among the step c.
3. according to the signal testing method of claim 1 a described video/audio receiving device, it is characterized in that wherein this video/audio receiving device is a digital TV set-top box, in order to receive and demodulate digital TV signal.
4. according to the signal testing method of claim 1 a described video/audio receiving device, it is characterized in that, wherein this video/audio receiving device also has a digital fiber joint, among the step b this digital fiber joint is connected to a sound card with optical fiber, and this sound card is electrically connected to this input and output control end group.
5. according to the signal testing method of claim 4 a described video/audio receiving device, it is characterized in that, wherein this test database has also produced a digital audio test environment among the step c, in this test database, define the digital audio specifications parameter of many group particular ranges in the steps d, this digital fiber joint is exported the entrained digital tone source signal of above-mentioned digital television signal to this sound card by optical-fibre communications among the step e, and this sound card transfers above-mentioned optical-fibre communications signal to electric signal and handles out this digital tone source signal.
6. according to the signal testing method of claim 5 a described video/audio receiving device, it is characterized in that, wherein this test database is carried out this digital audio test environment after the step e, this input and output control end group promptly receives this digital tone source signal, this digital audio test environment shows the electrical characteristic parameter of this digital tone source signal, and with above-mentioned respectively organize digital audio specifications parameter comparison show this digital tone source signal normally whether.
7. according to the signal testing method of claim 1 a described video/audio receiving device, it is characterized in that wherein this input and output control end group has a command port, this command port electrically connects this video/audio receiving device with RS232 interface transmission standard among the step b.
8. according to the signal testing method of claim 7 a described video/audio receiving device, it is characterized in that, wherein have a plurality of function buttons on this video/audio receiving device panel for operation, this test database has also produced a panel test environment among the step c, this test database is carried out this panel test environment after the step e, this panel test environment promptly shows actual in respectively this function button on this video/audio receiving device, when on this video/audio receiving device, pressing respectively this function button, this command port receives the RS232 specification signal that this video/audio receiving device is sent, and this panel test environment shows the corresponding respectively test mode of this function button.
9. according to the signal testing method of claim 1 a described video/audio receiving device, it is characterized in that, wherein in order to test two these video/audio receiving devices, two these video/audio receiving devices can receive the digital television signal with different frequency scope, corresponding respectively each frequency range is carried out demodulation process, respectively this video/audio receiving device also has a Digital Television output group, and the Digital Television output group of first this video/audio receiving device electrically connects the audio-visual receiving terminal group of second this video/audio receiving device among the step b.
10. according to the signal testing method of claim 9 a described video/audio receiving device, it is characterized in that, wherein this DAQ module is distinguished the voice signal of two different frequencies that this video/audio receiving device is exported and capture among the step f, and this audio-frequency test environment promptly shows the respectively electrical characteristic parameter of this video/audio receiving device institute output sound signal.
11. signal testing method according to claim 9 a described video/audio receiving device, it is characterized in that, wherein respectively this video/audio receiving device also has a digital fiber joint, will be respectively among the step b this digital fiber joint be connected to a sound card with optical fiber, this sound card is electrically connected to this input and output control end group.
12. signal testing method according to claim 11 a described video/audio receiving device, it is characterized in that, wherein this test database has also produced a digital audio test environment among the step c, in this test database, define the digital audio specifications parameter of many group particular ranges in the steps d, among the step e respectively this digital fiber joint export each entrained frequency of above-mentioned digital television signal by optical-fibre communications the digital tone source signal to this sound card, this sound card transfers above-mentioned optical-fibre communications signal to this digital tone source signal that electric signal is handled out each frequency.
13. signal testing method according to claim 12 a described video/audio receiving device, it is characterized in that, wherein this test database is carried out this digital audio test environment after the step e, this input and output control end group promptly receives two these digital tone source signals, this DAQ module is come out two these digital tone source signal distinguishings and acquisition, this digital audio test environment shows the respectively electrical characteristic parameter of this digital tone source signal, and with above-mentioned respectively organize the comparison of digital audio specifications parameter show this digital tone source signal normally whether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100988115A CN101106730A (en) | 2006-07-11 | 2006-07-11 | Signal testing method for video/audio receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100988115A CN101106730A (en) | 2006-07-11 | 2006-07-11 | Signal testing method for video/audio receiving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101106730A true CN101106730A (en) | 2008-01-16 |
Family
ID=39000360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100988115A Pending CN101106730A (en) | 2006-07-11 | 2006-07-11 | Signal testing method for video/audio receiving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101106730A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143345A (en) * | 2011-04-18 | 2011-08-03 | 凌阳科技股份有限公司 | Television system control method and device |
| CN102291595A (en) * | 2011-07-08 | 2011-12-21 | 深圳创维数字技术股份有限公司 | Testing method and device |
| CN102291667A (en) * | 2011-04-29 | 2011-12-21 | 广州视源电子科技有限公司 | Automatic selection test method and test system for digital and analog audios |
| CN102487450A (en) * | 2010-12-02 | 2012-06-06 | 深圳市同洲电子股份有限公司 | Test method for testing control function of satellite television signal receiver of set top box and system thereof |
| CN102821338A (en) * | 2011-06-10 | 2012-12-12 | 冠捷投资有限公司 | Circuit capable of eliminating abnormal sounds and method thereof |
| CN103618897A (en) * | 2013-10-31 | 2014-03-05 | 四川长虹电器股份有限公司 | A testing device of a machine core main board of a TV integrated machine |
| CN103763498A (en) * | 2014-01-24 | 2014-04-30 | 深圳市影歌科技有限公司 | HDMI signal processing system and method |
| CN103856771A (en) * | 2012-12-03 | 2014-06-11 | 智易科技股份有限公司 | Image signal testing method and device |
| CN104581132A (en) * | 2013-10-11 | 2015-04-29 | 纬创资通股份有限公司 | Detection system and detection method |
-
2006
- 2006-07-11 CN CNA2006100988115A patent/CN101106730A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487450A (en) * | 2010-12-02 | 2012-06-06 | 深圳市同洲电子股份有限公司 | Test method for testing control function of satellite television signal receiver of set top box and system thereof |
| CN102143345B (en) * | 2011-04-18 | 2013-04-03 | 凌阳科技股份有限公司 | Television system control method and device |
| CN102143345A (en) * | 2011-04-18 | 2011-08-03 | 凌阳科技股份有限公司 | Television system control method and device |
| CN102291667A (en) * | 2011-04-29 | 2011-12-21 | 广州视源电子科技有限公司 | Automatic selection test method and test system for digital and analog audios |
| CN102821338B (en) * | 2011-06-10 | 2015-02-25 | 冠捷投资有限公司 | Circuit capable of eliminating abnormal sounds and method thereof |
| CN102821338A (en) * | 2011-06-10 | 2012-12-12 | 冠捷投资有限公司 | Circuit capable of eliminating abnormal sounds and method thereof |
| CN102291595A (en) * | 2011-07-08 | 2011-12-21 | 深圳创维数字技术股份有限公司 | Testing method and device |
| CN103856771A (en) * | 2012-12-03 | 2014-06-11 | 智易科技股份有限公司 | Image signal testing method and device |
| CN104581132A (en) * | 2013-10-11 | 2015-04-29 | 纬创资通股份有限公司 | Detection system and detection method |
| CN104581132B (en) * | 2013-10-11 | 2016-11-16 | 纬创资通股份有限公司 | Detecting system and detection method |
| CN103618897A (en) * | 2013-10-31 | 2014-03-05 | 四川长虹电器股份有限公司 | A testing device of a machine core main board of a TV integrated machine |
| CN103618897B (en) * | 2013-10-31 | 2015-07-15 | 四川长虹电器股份有限公司 | A testing device of a machine core main board of a TV integrated machine |
| CN103763498A (en) * | 2014-01-24 | 2014-04-30 | 深圳市影歌科技有限公司 | HDMI signal processing system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101106730A (en) | Signal testing method for video/audio receiving device | |
| CN1193236C (en) | General oscilloscope having indicating ability of digital TV signals | |
| CN101950516B (en) | Detection system of driving plates liquid crystal television and liquid crystal display | |
| CN108267674B (en) | Comprehensive automatic test system | |
| CN102735953A (en) | Automatic testing device | |
| CN207884797U (en) | A kind of television set board testing host and equipment | |
| CN103873857B (en) | Test equipment and test method for audio and video output interface | |
| CN101594551A (en) | Image display testing method | |
| CN105282545A (en) | FPGA automatic test system and test method for liquid crystal television board | |
| CN108430023A (en) | A kind of sound equipment full-automatic testing equipment | |
| US8488002B2 (en) | Testing method and testing apparatus for TV system | |
| CN109803248A (en) | A kind of rapid automatized test method of Intelligent bracelet based on BLE4.0 | |
| CN205160714U (en) | FPGA automatic test system of LCD TV integrated circuit board | |
| CN103376401A (en) | Method and device for automatically detecting 4K2K product main control board | |
| CN110609183A (en) | IVI technology-based identification module and automatic test system of complete machine | |
| CN104931086A (en) | Parallel multi-station test system and test method thereof | |
| CN206097857U (en) | Display screen testing arrangement | |
| CN203590370U (en) | General video signal performance parameter automatic testing device | |
| CN103856771A (en) | Image signal testing method and device | |
| CN108718408A (en) | A kind of detection method and system for audio/video decoding board | |
| CN101778308A (en) | Method and device for automatically and uniformly testing TV images and sound | |
| CN110708216B (en) | Switch LLDP protocol test method and test system | |
| CN218450122U (en) | Wireless automatic detection system for whole assembly line | |
| CN106597170A (en) | ARC function test method and device | |
| CN203761519U (en) | New edition automatic test system of panel TV set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |