CN102572503B - Automatic test system for functions of television set and method thereof - Google Patents
Automatic test system for functions of television set and method thereof Download PDFInfo
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Abstract
The invention discloses an automatic test system for the functions of a television set and a method thereof. The system comprises a computer system, a signal generator, a power tester and a television system; the computer system is connected with the signal generator, so that various signal formats and test maps required by a test are generated and output to the television system; the computer system is connected with the television system, so that the television system is notified to complete relevant operation and simultaneously read the state and data fed back by the television system; and the computer system is connected with the television system through the power tester, so that the power signals of the television system are acquired. According to the system and the method thereof, a computer serves as a central control unit, control software serves a core part for coordinating the work of all units, whether the image display and sound output are normal or not is judged by reading the power difference of the power tester, no external command input module and manual interference are needed, and an operator can automatically test all the functions of the television set only by pressing one button of the computer system.
Description
Technical field
The present invention relates to functions of television set technical field of measurement and test, particularly relate to a kind of Auto-Test System and method thereof of functions of television set.
Background technology
Television set is household electrical appliance conventional in people's daily life, and along with the continuous progress of TV tech and the continuous renewal of tv product are regenerated, the function of television set is also more and more, and television set, after manufacture completes, need to carry out functional test to television set conventionally.Fig. 1 is the system block diagram of existing functions of television set test, prior art is actually take the software of original TV and has increased autorun as basis, need to there is instruction input module (being generally remote signal or push button signalling) to open the automatic test action that TV carries, need manually to judge that whether the signal of demonstration is normal simultaneously.Test signal automatically switches, but whether function normally still needs artificial judgement, cannot automatically complete the automatic test of TV functions.
Because existing TV generally all has: numerous passages such as HDMI, Component, VGA, CVBS, RF, under prior art condition, need to judge by artificial, not only check, judgement personnel's technical merit is had relatively high expectations, and easily produce tired, omission, thereby bring larger hidden danger of quality.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, a kind of Auto-Test System and method thereof of functions of television set are provided, this system and method thereof are to using computer as central control unit, using and control software as the core component of coordinating each cell operation, difference power by readout power tester come automatic process decision chart to resemble to show and voice output whether normal, this system and method thereof are without external instruction input module, without manual intervention, the button that operating personnel only need to press computer system can complete the test of all TV functions, to operating personnel without professional training, can automatically complete the automatic test of TV functions.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Auto-Test System of functions of television set, comprising:
One computer system, is provided with signal stimulating module, power signal acquisition module, signal processing module and signal controlling module in it; Signal processing module is connected with signal stimulating module, power signal acquisition module and signal controlling module respectively;
One signal generator, is used for producing the needed various signal format of system testing and test collection of illustrative plates;
One power measuring, is used for reading the complete machine power of television system;
One television system;
Computer system is connected with signal generator by an one RS232 serial ports, and the signal stimulating module in computer system is defeated by signal generator by pumping signal, by signal generator, produces the needed various signal format of system testing and test collection of illustrative plates; Signal generator is connected with the corresponding ports of television system by its output port, and signal generator is exported corresponding signal format and test collection of illustrative plates to television system; Computer system is connected with television system by its another RS232 serial ports, and the signal controlling module in computer system is exported control signal to television system, and notice television system completes state and the data that television system feedback is read in relevant operation simultaneously; Power measuring is connected with television system by electric power connection line, and power measuring obtains the power signal of television system; By it, another RS232 serial ports is connected with power measuring computer system, and the power signal acquisition module in computer system gathers the power signal of power measuring;
The performance number that this signal processing module is defeated by power signal acquisition module compares judgement, and exports corresponding judged result to the display screen of computer system.
The output port of described signal generator comprises radio frequency output, composite video signal output, component signal output, the output of VGA signal and the output of HDMI signal.
An automatic test approach for functions of television set, comprises the steps:
A. system initialization;
B. computer system is exported control signal to television system, by television system, the signal of its reception is switched to the signalling channel current to be tested setting in advance;
C. computer system, to a predefined pumping signal of signal generator output, by the current signal format to be tested of signal generator output, is exported the skip test collection of illustrative plates corresponding to current demand signal form simultaneously; Computer system is exported control signal to television system, and notice television system enters mute state;
D. television system detection signal form correctly display picture;
E. television system is to computer system output feedback signal, to the demonstration situation of computer report current demand signal;
F. the power of computer system readout power tester, the first performance number while obtaining television system mute state under the input of skip test figure spectrum signal;
G. computer system is to signal generator output drive signal, and notification signal generator output is corresponding to the non-blank-white test collection of illustrative plates of current demand signal form;
H. the power of computer system readout power tester, the second performance number while obtaining television system mute state under the input of non-blank-white resolution chart spectrum signal;
I. computer system is exported control signal to television system, and notice television system is removed quiet;
J. the power of computer system readout power tester, the 3rd performance number while obtaining the non-mute state of television system under the input of non-blank-white resolution chart spectrum signal;
K. by computer system, judge the demonstration situation of current voice output and picture and the comparative result of the current demand signal form under current test channel is kept in the memory cell of computer system; When the second performance number is greater than the first performance number, the picture disply of television system is normal, otherwise is undesired; When the 3rd performance number is greater than the second performance number, the voice output of television system is normal, otherwise is undesired;
L. whether computer system judgement has been tested when all signal formats of prepass, if tested, enters next step, otherwise determines next test signal form and return to step c;
M. computer system judges whether all passages have been tested, if tested, enter next step, otherwise determines next test channel and return to step b;
N. test finishes, and computer system recalls the test result of all signal formats of all passages from memory cell and the display unit of exporting to computer system is shown.
The Auto-Test System of a kind of functions of television set of the present invention and method thereof, be to using computer as central control unit, usings and control software as the core component of coordinating each cell operation; Computer expert crosses first RS232 serial ports and signal generator carries out communication, for generation of the needed various signal format of system testing and test collection of illustrative plates; Computer expert crosses second RS232 serial ports and power measuring carries out communication, for reading the complete machine power of television system, usings this as signal demonstration or the whether normal criterion of voice output; Computer expert crosses the 3rd RS232 serial ports and television system is carried out communication, for notify television system to complete state and data that television system feedback is read in relevant operation simultaneously; The radio frequency of signal generator (RF) output, composite video signal (CVBS) output, component signal (Component) output, the output of VGA signal, the output of HDMI signal etc. are accessed to each signal input port of TV simultaneously, each audio signal input end mouth of the audio output signal of signal generator access TV.
The invention has the beneficial effects as follows, owing to having adopted computer system, signal generator, power measuring and television system form the Auto-Test System of functions of television set, this automatic test approach is to using computer as central control unit, using and control software as the core component of coordinating each cell operation, difference power by readout power tester come automatic process decision chart to resemble to show and voice output whether normal, this system and method thereof are without external instruction input module, without manual intervention, the button that operating personnel only need to press computer system can complete the test of all TV functions, to operating personnel without professional training, can automatically complete the automatic test of TV functions.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But Auto-Test System and the method thereof of a kind of functions of television set of the present invention are not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the system block diagram of existing functions of television set test;
Fig. 2 is the system block diagram of Auto-Test System of the present invention;
Fig. 3 is the flow chart of method of the present invention.
Embodiment
Embodiment, shown in Fig. 2, Fig. 3, the Auto-Test System of a kind of functions of television set of the present invention, comprising:
One computer system 1, is provided with signal stimulating module 11, power signal acquisition module 12, signal processing module 13 and signal controlling module 14 in it; Signal processing module 13 is connected with signal stimulating module 11, power signal acquisition module 12 and signal controlling module 14 respectively;
One signal generator 2, is used for producing the needed various signal format of system testing and test collection of illustrative plates;
One power measuring 3, is used for reading the complete machine power of television system;
One television system 4;
The performance number that 13 pairs of power signal acquisition modules 12 of this signal processing module are defeated by compares judgement, and exports corresponding judged result to the display screen of computer system.
The output port of described signal generator 2 comprises radio frequency output, composite video signal output, component signal output, the output of VGA signal and the output of HDMI signal.
The automatic test approach of a kind of functions of television set of the present invention, comprises the steps:
A. system initialization;
B. computer system is exported control signal to television system, by television system, the signal of its reception is switched to the signalling channel current to be tested setting in advance;
C. computer system, to a predefined pumping signal of signal generator output, by the current signal format to be tested of signal generator output, is exported the skip test collection of illustrative plates corresponding to current demand signal form simultaneously; Computer system is exported control signal to television system, and notice television system enters mute state;
D. television system detection signal form correctly display picture;
E. television system is to computer system output feedback signal, to the demonstration situation of computer report current demand signal;
F. the power of computer system readout power tester, the first performance number while obtaining television system mute state under the input of skip test figure spectrum signal;
G. computer system is to signal generator output drive signal, and notification signal generator output is corresponding to the non-blank-white test collection of illustrative plates of current demand signal form;
H. the power of computer system readout power tester, the second performance number while obtaining television system mute state under the input of non-blank-white resolution chart spectrum signal;
I. computer system is exported control signal to television system, and notice television system is removed quiet;
J. the power of computer system readout power tester, the 3rd performance number while obtaining the non-mute state of television system under the input of non-blank-white resolution chart spectrum signal;
K. by computer system, judge the demonstration situation of current voice output and picture and the comparative result of the current demand signal form under current test channel is kept in the memory cell of computer system; When the second performance number is greater than the first performance number, the picture disply of television system is normal, otherwise is undesired; When the 3rd performance number is greater than the second performance number, the voice output of television system is normal, otherwise is undesired;
L. whether computer system judgement has been tested when all signal formats of prepass, if tested, enters next step, otherwise determines next test signal form and return to step c;
M. computer system judges whether all passages have been tested, if tested, enter next step, otherwise determines next test channel and return to step b;
N. test finishes, and computer system recalls the test result of all signal formats of all passages from memory cell and the display unit of exporting to computer system is shown.
The Auto-Test System of a kind of functions of television set of the present invention and method thereof, be to using computer as central control unit, usings and control software as the core component of coordinating each cell operation; Computer expert crosses first RS232 serial ports and signal generator carries out communication, for generation of the needed various signal format of system testing and test collection of illustrative plates; Computer expert crosses second RS232 serial ports and power measuring carries out communication, for reading the complete machine power of television system, usings this as signal demonstration or the whether normal criterion of voice output; Computer expert crosses the 3rd RS232 serial ports and television system is carried out communication, for notify television system to complete state and data that television system feedback is read in relevant operation simultaneously; The radio frequency of signal generator (RF) output, composite video signal (CVBS) output, component signal (Component) output, the output of VGA signal, the output of HDMI signal etc. are accessed to each signal input port of TV simultaneously, each audio signal input end mouth of the audio output signal of signal generator access TV.
Judge whether picture shows normally: the first notification signal generator output of system signal format is as the skip test collection of illustrative plates of HDMI1080i@60Hz, television system automatic detection signal normal demonstration return to the information of computer " semaphore lock " simultaneously, at video screen picture disply, for entirely black, computer system is recorded the power reading A1 (i.e. the first performance number) of power measuring now; System reinforms signal generator output non-blank-white test collection of illustrative plates (being generally color bar signal), television system reports that " semaphore lock " shows simultaneously on video screen again, and computer system is recorded the power reading A2 (i.e. the second performance number) of power measuring again.Whether " semaphore lock " sign by twice of front and back just can normally be identified and show by television system by decision signal; The power producing due to non-blank-white collection of illustrative plates is greater than the power that skip test collection of illustrative plates produces certainly, the watt level A2 obtaining and A1 also must meet A2 > A1 and A1 and approach but be slightly larger than the power while there is no signal, so system just can judge whether picture shows normally by calculating A=A2-A1, as normal in 0 of A >, otherwise undesired.Computer system changes the signal format of output more so repeatedly by notification signal generator, then coordinates notice television system to switch that corresponding passage completes one by one signal format, the picture function of television channel is tested one by one.
Judge that whether voice output is normal: the first notification signal generator output of system signal format is as the fixing test collection of illustrative plates (being generally colour bar) of HDMI1080i@60Hz, the correct demonstration of television system detected and make TV in mute state simultaneously, the reading S1 (i.e. the second performance number) of the first readout power tester of system; System reinforms television system and removes mute state, normal output audio signal, and the settings (as 30) of the volume of assurance TV in the acquiescence of dispatching from the factory, system is the reading S2 of readout power tester (i.e. the 3rd performance number) again.Whether normally system judges sound output by calculating S=S2-S1, as normal in 0 of S >, otherwise undesired.Computer system more so repeatedly notification signal generator change signal output format, then coordinate notice television system to switch corresponding passage to come signal format, the test of the voice output of television channel one by one one by one.Above-mentioned S1=A2.
Above-described embodiment is only used for further illustrating Auto-Test System and the method thereof of a kind of functions of television set of the present invention; but the present invention is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all fall in the protection range of technical solution of the present invention.
Claims (3)
1. an Auto-Test System for functions of television set, is characterized in that: comprising:
One computer system, is provided with signal stimulating module, power signal acquisition module, signal processing module and signal controlling module in it; Signal processing module is connected with signal stimulating module, power signal acquisition module and signal controlling module respectively;
One signal generator, is used for producing the needed various signal format of system testing and test collection of illustrative plates;
One power measuring, is used for reading the complete machine power of television system;
One television system;
Computer system is connected with signal generator by an one RS232 serial ports, and the signal stimulating module in computer system is defeated by signal generator by pumping signal, by signal generator, produces the needed various signal format of system testing and test collection of illustrative plates; Signal generator is connected with the corresponding ports of television system by its output port, and signal generator is exported corresponding signal format and test collection of illustrative plates to television system; Computer system is connected with television system by its another RS232 serial ports, and the signal controlling module in computer system is exported control signal to television system, and notice television system completes the operation of appointment and reads state and the data that television system is fed back simultaneously; Power measuring is connected with television system by electric power connection line, and power measuring obtains the power signal of television system; By it, another RS232 serial ports is connected with power measuring computer system, and the power signal acquisition module in computer system gathers the power signal of power measuring;
This signal processing module compares judgement to the television system performance number that power signal acquisition module is defeated by under different conditions, and exports corresponding judged result to the display screen of computer system;
Wherein, computer system notice television system completes the operation of appointment, comprising:
Computer system is exported control signal to television system, by television system, the signal of its reception is switched to the signalling channel current to be tested setting in advance;
Computer system is exported control signal to television system, and notice television system enters mute state;
Computer system is exported control signal to television system, and notice television system is removed quiet.
2. the Auto-Test System of functions of television set according to claim 1, is characterized in that: the output port of described signal generator comprises radio frequency output, composite video signal output, component signal output, the output of VGA signal and the output of HDMI signal.
3. an automatic test approach for functions of television set, is characterized in that: comprise the steps:
A. system initialization;
B. computer system is exported control signal to television system, by television system, the signal of its reception is switched to the signalling channel current to be tested setting in advance;
C. computer system, to a predefined pumping signal of signal generator output, by the current signal format to be tested of signal generator output, is exported the skip test collection of illustrative plates corresponding to current demand signal form simultaneously; Computer system is exported control signal to television system, and notice television system enters mute state;
D. television system detection signal form correctly display picture;
E. television system is to computer system output feedback signal, to the demonstration situation of computer report current demand signal;
F. the power of computer system readout power tester, the first performance number while obtaining television system mute state under the input of skip test figure spectrum signal;
G. computer system is to signal generator output drive signal, and notification signal generator output is corresponding to the non-blank-white test collection of illustrative plates of current demand signal form;
H. the power of computer system readout power tester, the second performance number while obtaining television system mute state under the input of non-blank-white resolution chart spectrum signal;
I. computer system is exported control signal to television system, and notice television system is removed quiet;
J. the power of computer system readout power tester, the 3rd performance number while obtaining the non-mute state of television system under the input of non-blank-white resolution chart spectrum signal;
K. by computer system, judge the demonstration situation of current voice output and picture and the comparative result of the current demand signal form under current test channel is kept in the memory cell of computer system; When the second performance number is greater than the first performance number, the picture disply of television system is normal, otherwise is undesired; When the 3rd performance number is greater than the second performance number, the voice output of television system is normal, otherwise is undesired;
L. whether computer system judgement has been tested when all signal formats of prepass, if tested, enters next step, otherwise determines next test signal form and return to step c;
M. computer system judges whether all passages have been tested, if tested, enter next step, otherwise determines next test channel and return to step b;
N. test finishes, and computer system recalls the test result of all signal formats of all passages from memory cell and the display unit of exporting to computer system is shown.
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