CN105100793A - Television and television signal interface detection method - Google Patents
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- CN105100793A CN105100793A CN201410186100.8A CN201410186100A CN105100793A CN 105100793 A CN105100793 A CN 105100793A CN 201410186100 A CN201410186100 A CN 201410186100A CN 105100793 A CN105100793 A CN 105100793A
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Abstract
The invention discloses a television signal interface detection method. The method comprises steps: when a signal interface detection instruction is received, a signal interface detection mode is in; a type of to-be-detected image signals in a to-be-detected interface is determined, and according to the mapping relationship between preset standard sampling data and the to-be-detected image signal type, the standard sampling data corresponding to the to-be-detected image signals are determined, and the to-be-detected image signals are formed by horizontal image signals and longitudinal image signals alternatively; the to-be-detected image signals are sampled to acquire sampling data for the to-be-detected image signals; when the sampling data and the standard sampling data are matched, whether the signal interface is normal is judged; and in the case of not matching, the signal interface is judged to be abnormal. The invention also discloses a television. The television signal interface can be automatically detected, the signal interface detection efficiency is improved, and the possibility of detection errors caused by image compression can be effectively prevented.
Description
Technical field
The present invention relates to signaling interface field tests, particularly relate to the detection method of television set and signaling interface thereof.
Background technology
Along with the development of mechanics of communication, increasing electric terminal (such as, television set, computer etc.) enter people work, life in the middle of.People can be mutual by electric terminal and the external world, or by signal input interface access sound, the vision signal of electric terminal, to receive outside sound, video data etc.In order to ensure that electric terminal successfully receives outside sound, video data by its signaling interface, need to detect each signal input interface of electric terminal in advance.Such as, for television set, the signal input interface of television set is numerous, as TV style interface, VGA style interface, HDMI style interface, YpbPr style interface etc., and integrated along with television set performance enhancement and New function, the type of signal input interface and quantity are also continuing to increase, and signal input interface all needs through strict detection in the production process of television set, thus ensure that each signal input interface performance of the television set dispatched from the factory is normal.The existing detection mode to television signal input interface is: when the input interface of television set has signal to input, export described signal to be connected with television signal checkout gear by the signal output interface of corresponding types to detect, whether normal to determine the performance of the signal input interface of television set.
But the detection mode of above-mentioned signaling interface, must rely on external detection device to detect, and need to configure dissimilar signal output interface, detect to facilitate the performance of the signaling interface to each type.Because needing the support of independent external detection device and needing to configure each dissimilar signal input line cable and collecting device, as MiLVDS (Mini-LVDS interface); With the television set of V-BY-ONE (interface of V-by-One technology) new interface, current detection and the collecting device also not having corresponding interface, the cost causing signaling interface to detect increases.
Foregoing, only for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present invention is for providing the detection method of television set and signaling interface thereof, be intended to realize terminal automatically detect signaling interface, improve the efficiency that signaling interface detects, and effectively prevent the possibility that the metrical error caused due to image compression exists.
For achieving the above object, the invention provides a kind of television set, this television set comprises:
Respond module, for when receiving the detection instruction of signaling interface, entering signal interface detecting pattern;
Processing module, for determining the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, wherein said picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard;
Sampling module, obtains the sampled data of picture signal to be detected for carrying out described picture signal to be detected sampling;
Detection module, for when described sampled data and described standard sample Data Matching, judges that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
Preferably, described sampling module, also for obtaining a frame picture in the picture from picture signal to be detected at random as the first picture;
When the picture of described picture signal to be detected replaces, obtain another frame picture as the second picture;
Described first picture and described second picture are diagonally sampled respectively, obtains the first sampled data and the second sampled data.
Preferably, described detection module, also for described first sampled data and described second sampled data being mated with described standard lateral sampled data and the longitudinal sampled data of described standard;
Mate with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal.
Preferably, described detection module, whether the difference also for analyzing described sampled data and described standard sample data is greater than predetermined threshold value;
When the difference of described sampled data and described standard sample data is less than or equal to described predetermined threshold value, described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal;
When the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
Preferably, described sampled data comprises quantity and/or the color value of pixel in each picture signal to be detected.
The present invention further provides a kind of detection method of television signal interface, the method comprising the steps of:
When receiving the detection instruction of signaling interface, entering signal interface detecting pattern;
Determine the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard;
Carry out sampling to described picture signal to be detected and obtain the sampled data of picture signal to be detected;
When described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.
Preferably, described step of described picture signal to be detected being carried out to the sampled data of sampling acquisition picture signal to be detected comprises:
From the picture of picture signal to be detected, the random frame picture that obtains is as the first picture;
When the picture of described picture signal to be detected replaces, obtain another frame picture as the second picture;
Described first picture and described second picture are diagonally sampled respectively, obtains the first sampled data and the second sampled data.
Preferably, described when described sampled data and described standard sample Data Matching, judge that the normal step of described signaling interface performance comprises:
Described first sampled data and described second sampled data are mated with described standard lateral sampled data and the longitudinal sampled data of described standard;
Mate with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal.
Preferably, described when described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge that the step of described signaling interface property abnormality comprises:
Whether the difference analyzing described sampled data and described standard sample data is greater than predetermined threshold value;
When the difference of described sampled data and described standard sample data is less than or equal to described predetermined threshold value, described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal;
When the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
Preferably, described sampled data comprises quantity and/or the color value of pixel in each picture signal to be detected.
Hinge structure, the present invention passes through when receiving the detection instruction of signaling interface, entering signal interface detecting pattern; Determine the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard; Carry out sampling to described picture signal to be detected and obtain the sampled data of picture signal to be detected, when described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.Realize television set automatically to detect signaling interface, and disobey outer portion checkout gear and carry out signaling interface detection, and do not need the dissimilar signal output interface of configuration to be connected with external detection device, reduce the cost that signaling interface detects, simultaneously by sampling to horizontal and vertical detected image signal, improve the efficiency that signaling interface detects, and effectively can prevent the possibility that the metrical error caused due to image compression exists.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of detection method first embodiment of television signal interface of the present invention;
Fig. 2 is the refinement schematic flow sheet of step S30 in detection method Fig. 1 of television signal interface of the present invention;
Fig. 3 is the refinement schematic flow sheet of step S40 in detection method Fig. 1 of television signal interface of the present invention;
Fig. 4 is the schematic flow sheet of detection method second embodiment of television signal interface of the present invention;
Fig. 5 is the schematic flow sheet of detection method the 3rd embodiment of television signal interface of the present invention;
Fig. 6 is the high-level schematic functional block diagram of television set embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, be the schematic flow sheet of detection method first embodiment of television signal interface of the present invention.
It is emphasized that: flow chart shown in Fig. 1 is only a preferred embodiment, those skilled in the art is when knowing, any embodiment built around inventive concept should not depart from the scope contained in following technical scheme:
When receiving the detection instruction of signaling interface, entering signal interface detecting pattern, determine the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, wherein said picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard, carry out sampling to described picture signal to be detected and obtain the sampled data of picture signal to be detected, when described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.
Below the concrete steps that the present embodiment progressively realizes detecting television signal interface:
Step S10, when receiving the detection instruction of signaling interface, entering signal interface detecting pattern;
Along with the development of mechanics of communication, increasing television set enter people work, life in the middle of.People can access sound, vision signal by the signal input interface of television set, to receive outside sound, video data etc.In order to ensure that television set successfully receives outside sound, video data by its signaling interface, need to detect each signal input interface of television set in advance.User is when needing to detect the signaling interface of television set, can by clicking the menu key on television set, and the option selecting signaling interface to detect from the menu of display, carry out the detection of trigger television signaling interface, or the button detected by signaling interface corresponding on the controller of television set carrys out the detection of trigger television signaling interface, or, when television set detects the input of picture signal to be detected, the detection etc. of trigger television signaling interface.When the detection instruction receiving signaling interface, television set entering signal interface detecting pattern.
Step S20, determine the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard;
Television set is after entering signal interface detecting pattern, the picture signal to be detected that interface to be detected inputs is analyzed, determine the type of picture signal to be detected, namely the type of interface to be detected is determined, such as, TV type picture signal to be detected, VGA type picture signal to be detected, HDMI type picture signal to be detected, YpbPr type picture signal to be detected etc.Television set prestores the standard sample data corresponding with various picture signal type to be detected, television set is after the type determining picture signal to be detected, according to the mapping relations of standard sample data and signal type, determine the standard sample data that described picture signal to be detected is corresponding namely to get the examination criteria that picture signal to be detected is corresponding.Described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed.Described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard.
Step S30, carrying out sampling to described picture signal to be detected obtains the sampled data of picture signal to be detected;
Television set is sampled to described picture signal to be detected, to obtain the sampled data of picture signal to be detected, corresponding with standard sample data, and described sampled data comprises horizontal sampled data and longitudinal sampled data.That is, television set is sampled to horizontal picture signal to be detected and longitudinal signal to be detected respectively, obtains described sampled data.Described sampled data comprises the quantity of the pixel of picture signal picture to be detected and/or the color value etc. of picture signal picture to be detected.
Further, in order to improve the accuracy that television signal interface detects, with reference to figure 2, described step S30 can comprise:
Step S301, from the picture of picture signal to be detected, the random frame picture that obtains is as the first picture;
Step S302, when the picture of described picture signal to be detected replaces, obtains another frame picture as the second picture;
Step S303, diagonally samples respectively to described first picture and described second picture, obtains the first sampled data and the second sampled data.
The picture of the picture signal to be detected of signaling interface is static bar shaped picture, this static bar shaped picture can periodically replace as longitudinal picture by horizontal picture, periodically replace back horizontal picture again, continue to carry out horizontal picture and longitudinal picture alternately thus formative dynamics video signal, and obtaining the first picture by the mode of random screenshotss, this static bar shaped picture is the colour bar with fixing number and width simultaneously.Namely be presented as that described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed.Television set obtains a frame picture at random from the picture of picture signal to be detected, as the first picture S1, after getting described first picture S1, and when the picture of described picture signal to be detected occurs alternately, obtains another frame picture, as the second picture S2.By the picture alternately each acquisition in the front and back one frame picture respectively in picture signal to be detected, guarantee have a frame picture to be horizontal picture in the two frame pictures obtained, a frame picture is longitudinal picture.The process obtaining picture from the picture of picture signal to be detected is: obtain the display image buffer data in TV machine system FrameBuffer (frame buffer zone), what current demand signal was selected is picture signal to be detected, and display image data in TV machine system FrameBuffer is picture signal to be tested.After getting described first picture S1 and described second picture S2, television set is diagonally sampled respectively to described first picture and described second picture, obtains the first sampled data and the second sampled data.Described first sampled data be in described first picture S1 diagonally, the data such as the quantity of pixel, the color value of each colour bar in each colour bar of static bar shaped picture; Described second sampled data be in described second picture S2 diagonally, the data such as the quantity of pixel, the color value of each colour bar in each colour bar of static bar shaped picture.Wherein, described first sampled data is horizontal sampled data, and described second sampled data is longitudinal sampled data, or described first sampled data is longitudinal sampled data, and described second sampled data is horizontal sampled data.Owing to being diagonally sample at the first picture and the second picture, number of samples can being reduced on the one hand and improve processing speed, the possibility of the metrical error that simultaneously can prevent image compression from causing further.
Step S40, when described sampled data and described standard sample Data Matching, judges that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
Television set when determining standard sample data corresponding to described picture signal to be detected, analyze described sampled data whether with described standard sample Data Matching, when described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal; When described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.
Described standard sample data comprise the longitudinal sampled data of standard lateral sampled data and standard, treat test image signal carry out sampling obtain be the first sampled data and the second sampled data time, ginseng is with reference to figure 3, and described step S40 can comprise:
Step S401, mates described first sampled data and described second sampled data with described standard lateral sampled data and the longitudinal sampled data of described standard;
Step S402, mate with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal.
Television set when collecting described first sampled data and described second sampled data from described first picture S1 and described second picture S2, described first sampled data and described second sampled data are mated with described standard lateral sampled data and the longitudinal sampled data of described standard respectively, wherein, have one for horizontal sampled data in described first sampled data and described second sampled data, another is longitudinal sampled data; That is, first by described first sampled data and described standard lateral sampled data, if match, then longitudinal to described second sampled data and described standard sampled data is mated; Or when described first sampled data is not mated with described standard lateral sampled data, longitudinal to described first sampled data and described standard sampled data is mated.Television set mates with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal, described signaling interface property abnormality is all determined in other situations except above-mentioned two situations, such as, do not mate with described standard lateral sampled data in described first sampled data, and described first sampled data is not when mating with the longitudinal sampled data of described standard, or do not mate with described standard lateral sampled data in described second sampled data, and described second sampled data is not when mating with the longitudinal sampled data of described standard, or mate with described standard lateral sampled data in described first sampled data, but when described second sampled data is not mated with the longitudinal sampled data of described standard etc. in situation, all judge described signaling interface property abnormality.Time in described first sampled data and described standard lateral Data Matching, determine that described first picture S1 is horizontal picture, and determine that described second picture S2 is longitudinal picture; If when described first sampled data and described standard longitudinal data match, determine that described first picture S1 is longitudinal picture, and determine that described second picture S2 is horizontal picture.
Such as, if described sampled data is for the quantity of the pixel of colour bar, colour bar quantity is with 3 (A, B, C) be example, described first sampled data is with a1, b1, c1 is example, described second sampled data is with a2, b2, c2 is example, described standard lateral sampled data is with A1, B1, C1 is example, the longitudinal sampled data of described standard is with A2, B2, C2 is example, wherein, a1, a2, A1, A2 represents the quantity of the pixel of A colour bar, b1, b2, B1, V2 represents the quantity of the pixel of B colour bar, c1, c2, C1, C2 represents the quantity of the pixel of C colour bar, then concrete matching process is: mated by a1 and A1, b1 and B1 is mated, c1 and C1 is mated, if a1 and A1 mates, b1 and B1 mates, c1 and C1 mates, then a2 and A2 is mated, b2 and B2 is mated, c2 and C2 is mated, if a2 and A2 mates, b2 and B2 mates, c2 and C2 mates, then judge that described signaling interface performance is normal.Namely, when the described sampled data of each colour bar and described standard sample Data Matching, judge that described signaling interface performance is normal.
The embodiment of the present invention is passed through when receiving the detection instruction of signaling interface, entering signal interface detecting pattern; Determine the type of detected image signal in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard; Carry out sampling to described picture signal to be detected and obtain the sampled data of picture signal to be detected; When described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.Realize television set automatically to detect signaling interface, and disobey outer portion checkout gear and carry out signaling interface detection, and do not need the dissimilar signal output interface of configuration to be connected with external detection device, reduce the cost that signaling interface detects, sampled by horizontal and vertical detection signal simultaneously, improve the efficiency that signaling interface detects, and effectively can prevent the possibility that the metrical error caused due to image compression exists.
As shown in Figure 4, be the schematic flow sheet of detection method second embodiment of television signal interface of the present invention.In order to detect television signal interface, improve the accuracy that television signal interface detects, based on above-mentioned first embodiment, after described step S30, the method also comprises step:
Step S50, whether the difference analyzing described sampled data and described standard sample data is greater than predetermined threshold value;
The threshold value that one sampled data detects is set in advance, television set is after obtaining described sampled data and determining described standard sample data, whether the difference analyzing described sampled data and described standard sample data is greater than predetermined threshold value, if, then perform following step S70, if not, then following step S60 is performed.Such as, described sampled data and described standard sample data are for the quantity of pixel, if the quantity of the pixel of described sampled data is V1, V2, the quantity of the pixel of described standard sample data is that V is horizontal, V indulges, calculate the difference of V1 and V horizontal stroke, the difference that V1 and V is vertical, the difference of V2 and V horizontal stroke, the difference that V2 and V is vertical, and disregard the sign of difference.Described predetermined threshold value can be 4,6 or 8 etc.
Step S60, when the difference of described sampled data and described standard sample data is less than or equal to described predetermined threshold value, described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal;
Step S70, when the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
When described difference is less than or equal to described predetermined threshold value, such as, described sampled data is for V1, V2, and described standard sample data are horizontal for V, V indulges, and described predetermined threshold value is for 4, if | V1-V is horizontal | be less than or equal to 4, and | V2-V indulges | be less than or equal to 4, or | V2-V is horizontal | be less than or equal to 4, and | V1-V indulges | be less than or equal to 4, then judge described sampled data and described standard sample Data Matching, determine that described signaling interface performance is normal; If | V1-V is horizontal | be greater than 4, and | V1-V indulges | be greater than 4, or | V2-V is horizontal | be greater than 4, and | V2-V indulges | and be greater than 4, then described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
The threshold value that the embodiment of the present invention is detected by preset in advance one sampled data, when the difference of described sampled data and described standard sample data is less than or equal to predetermined threshold value, judge that described signaling interface performance is normal, when the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, judge described signaling interface property abnormality.Prevent the result of the differentia influence signaling interface Performance Detection occurred in sampling process, improve the accuracy that signaling interface detects.
As shown in Figure 5, be the schematic flow sheet of detection method the 3rd embodiment of television signal interface of the present invention.Based on above-mentioned first and second embodiments, after described step S40, the method also comprises step:
Step S80, when described signaling interface performance is normal, prompting subscriber signal interface capability is normal;
Step S90, when described signaling interface property abnormality, prompting subscriber signal interface capability is abnormal and abnormal reason occurs.
Television set is when determining that described signaling interface performance is normal, send information, described information can be the forms such as picture, sound, word, and content can be detect by informations such as, signaling interface are normal, detects by, signaling interface performance normal with cue interface.Television set, when determining described signaling interface property abnormality, sends information, described information can comprise signaling interface detect unsuccessfully, detect not by and/or signaling interface there is abnormal reason.It can be with the color value etc. of the picture of the picture offset coordinates of error code, signal to be detected, signal to be detected that described signaling interface sends abnormal reason.The abnormal conditions that described error code is corresponding different respectively, for coordinate offset, when horizontal picture, if in the most left or the rightest vitta (color-bar namely in horizontal detected image signal) pixel number ratio standard detection picture signal, the pixel quantity of corresponding vitta is few in horizontal detected image signal, other vitta pixel quantity are normal, (or to the right) skew left can be described, as when longitudinal picture, if go up most in longitudinal detected image signal or in lower vitta pixel number ratio standard detection picture signal the pixel quantity of corresponding vitta few, other vitta pixel quantity is normal, represent and offset up or down, for color data error, as time in the threshold range of the color value of color value not in standard sample data in respective coordinates in respective coordinates in picture signal to be detected then represents to there is color data error.
Be understandable that, described step S80 can after described step S60, and described step S90 can after described step S70.
The embodiment of the present invention, by when signaling interface is normal or abnormal, sends prompting message, can understand the state of signaling interface detection in time, and process for emergency case in time for user, improves the efficiency that television signal interface detects.
As shown in Figure 6, be the high-level schematic functional block diagram of television set embodiment of the present invention.This television set comprises: respond module 10, processing module 20, sampling module 30 and detection module 40.
Described respond module 10, for when receiving the detection instruction of signaling interface, entering signal interface detecting pattern;
Along with the development of mechanics of communication, increasing television set enter people work, life in the middle of.People can access sound, vision signal by the signal input interface of television set, to receive outside sound, video data etc.In order to ensure that television set successfully receives outside sound, video data by its signaling interface, need to detect each signal input interface of television set in advance.User is when needing to detect the signaling interface of television set, can by clicking the menu key on television set, and the option selecting signaling interface to detect from the menu of display, carry out the detection of trigger television signaling interface, or the button detected by signaling interface corresponding on the controller of television set carrys out the detection of trigger television signaling interface, or, when television set detects the input of picture signal to be detected, the detection etc. of trigger television signaling interface.When the detection instruction receiving signaling interface, television set entering signal interface detecting pattern.
Described processing module 20, for determining the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard;
Television set is after entering signal interface detecting pattern, the picture signal to be detected that interface to be detected inputs is analyzed, determine the type of picture signal to be detected, namely the type of interface to be detected is determined, such as, TV type picture signal to be detected, VGA type picture signal to be detected, HDMI type picture signal to be detected, YpbPr type picture signal to be detected etc.Television set prestores the standard sample data corresponding with various signal type, television set is after the type determining picture signal to be detected, according to the mapping relations of standard sample data and signal type, determine the standard sample data that described picture signal to be detected is corresponding.Described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed.Described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard.
Described sampling module 30, obtains the sampled data of picture signal to be detected for carrying out described picture signal to be detected sampling;
Television set is sampled to described picture signal to be detected, to obtain the sampled data of picture signal to be detected, corresponding with standard sample data, and described sampled data comprises horizontal sampled data and longitudinal sampled data.That is, television set is sampled to horizontal picture signal to be detected and longitudinal signal to be detected respectively, obtains described sampled data.Described sampled data comprises the quantity of the pixel of picture signal picture to be detected, the color value etc. of picture signal picture to be detected.
Further, in order to improve the accuracy that television signal interface detects, described sampling module 30, also for obtaining a frame picture in the picture from picture signal to be detected at random as the first picture;
When the picture of described picture signal to be detected replaces, obtain another frame picture as the second picture;
Described first picture and described second picture are diagonally sampled respectively, obtains the first sampled data and the second sampled data.
The picture of the picture signal to be detected of signaling interface is static bar shaped picture, this static bar shaped picture can periodically replace as longitudinal picture by horizontal picture, periodically replace back horizontal picture again, continue to carry out horizontal picture and longitudinal picture alternately, thus formative dynamics video signal, and obtaining the first picture by the mode of random screenshotss, this static bar shaped picture has the colour bar of fixing number and width simultaneously.Namely be presented as that described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed.Television set obtains a frame picture at random from the picture of picture signal to be detected, as the first picture S1, after getting described first picture S1, and when the picture of described picture signal to be detected occurs alternately, obtains another frame picture, as the second picture S2.By the picture alternately each acquisition in the front and back one frame picture respectively in picture signal to be detected, guarantee have a frame picture to be horizontal picture in the two frame pictures obtained, a frame picture is longitudinal picture.The process obtaining picture from the picture of picture signal to be detected is: obtain the display image buffer data in TV machine system FrameBuffer (frame buffer zone), what current demand signal was selected is picture signal to be detected, and display image data in TV machine system FrameBuffer is picture signal to be tested.After getting described first picture S1 and described second picture S2, television set is diagonally sampled respectively to described first picture and described second picture, obtains the first sampled data and the second sampled data.Described first sampled data be in described first picture S1 diagonally, the data such as the quantity of pixel, the color value of each colour bar in each colour bar of static bar shaped picture; Described second sampled data be in described second picture S2 diagonally, the data such as the quantity of pixel, the color value of each colour bar in each colour bar of static bar shaped picture.Wherein, described first sampled data is horizontal sampled data, and described second sampled data is longitudinal sampled data, or described first sampled data is longitudinal sampled data, and described second sampled data is horizontal sampled data.Owing to being diagonally sample at the first picture and the second picture, number of samples can being reduced on the one hand and improve processing speed, the possibility of the metrical error that simultaneously can prevent image compression from causing further.
Described detection module 40, for when described sampled data and described standard sample Data Matching, judges that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
Television set when determining standard sample data corresponding to described picture signal to be detected, analyze described sampled data whether with described standard sample Data Matching, when described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal; When described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.
Described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard, treat test image signal carry out sampling obtain be the first sampled data and the second sampled data time, described detection module 40 also for: described first sampled data and described second sampled data are mated with described standard lateral sampled data and the longitudinal sampled data of described standard;
Mate with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal.
Television set when collecting described first sampled data and described second sampled data from described first picture S1 and described second picture S2, described first sampled data and described second sampled data are mated with described standard lateral sampled data and the longitudinal sampled data of described standard respectively, wherein, have one for horizontal sampled data in described first sampled data and described second sampled data, another is longitudinal sampled data; That is, first by described first sampled data and described standard lateral sampled data, if match, then longitudinal to described second sampled data and described standard sampled data is mated; Or when described first sampled data is not mated with described standard lateral sampled data, longitudinal to described first sampled data and described standard sampled data is mated.Television set mates with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal, described signaling interface property abnormality is all determined in other situations except above-mentioned two situations, such as, do not mate with described standard lateral sampled data in described first sampled data, and described first sampled data is not when mating with the longitudinal sampled data of described standard, or do not mate with described standard lateral sampled data in described second sampled data, and described second sampled data is not when mating with the longitudinal sampled data of described standard, or mate with described standard lateral sampled data in described first sampled data, but when described second sampled data is not mated with the longitudinal sampled data of described standard etc. in situation, all judge described signaling interface property abnormality.Time in described first sampled data and described standard lateral Data Matching, determine that described first picture S1 is horizontal picture, and determine that described second picture S2 is longitudinal picture; If when described first sampled data and described standard longitudinal data match, determine that described first picture S1 is longitudinal picture, and determine that described second picture S2 is horizontal picture.
Such as, if described sampled data is for the quantity of the pixel of colour bar, colour bar quantity is with 3 (A, B, C) be example, described first sampled data is with a1, b1, c1 is example, described second sampled data is with a2, b2, c2 is example, described standard lateral sampled data is with A1, B1, C1 is example, the longitudinal sampled data of described standard is with A2, B2, C2 is example, wherein, a1, a2, A1, A2 represents the quantity of the pixel of A colour bar, b1, b2, B1, V2 represents the quantity of the pixel of B colour bar, c1, c2, C1, C2 represents the quantity of the pixel of C colour bar, then concrete matching process is: mated by a1 and A1, b1 and B1 is mated, c1 and C1 is mated, if a1 and A1 mates, b1 and B1 mates, c1 and C1 mates, then a2 and A2 is mated, b2 and B2 is mated, c2 and C2 is mated, if a2 and A2 mates, b2 and B2 mates, c2 and C2 mates, then judge that described signaling interface performance is normal.Namely, when the described sampled data of each colour bar and described standard sample Data Matching, judge that described signaling interface performance is normal.
The embodiment of the present invention is passed through when receiving the detection instruction of signaling interface, entering signal interface detecting pattern; Determine the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard; Carry out sampling to described picture signal to be detected and obtain the sampled data of picture signal to be detected; When described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.Realize television set automatically to detect signaling interface, and disobey outer portion checkout gear and carry out signaling interface detection, and do not need the dissimilar signal output interface of configuration to be connected with external detection device, reduce the cost that signaling interface detects, sampled by horizontal and vertical detection signal simultaneously, improve the efficiency that signaling interface detects, and effectively can prevent the possibility that the metrical error caused due to image compression exists.
Further, in order to detect television signal interface, improve the accuracy that television signal interface detects, described detection module 40 also for: whether the difference analyzing described sampled data and described standard sample data is greater than predetermined threshold value;
Arrange the threshold value that a sampled data detects in advance, television set is after obtaining described sampled data and determining described standard sample data, and whether the difference analyzing described sampled data and described standard sample data is greater than predetermined threshold value.Such as, described sampled data and described standard sample data are for the quantity of pixel, if the quantity of the pixel of described sampled data is V1, V2, the quantity of the pixel of described standard sample data is that V is horizontal, V indulges, calculate the difference of V1 and V horizontal stroke, the difference that V1 and V is vertical, the difference of V2 and V horizontal stroke, the difference that V2 and V is vertical, and disregard the sign of difference.Described predetermined threshold value can be 4,6 or 8 etc.
Described detection module 40 also for: when the difference of described sampled data and described standard sample data is less than or equal to described predetermined threshold value, described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal;
When the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
When described difference is less than or equal to described predetermined threshold value, such as, described sampled data is for V1, V2, and described standard sample data are horizontal for V, V indulges, and described predetermined threshold value is for 4, if | V1-V is horizontal | be less than or equal to 4, and | V2-V indulges | be less than or equal to 4, or | V2-V is horizontal | be less than or equal to 4, and | V1-V indulges | be less than or equal to 4, then judge described sampled data and described standard sample Data Matching, determine that described signaling interface performance is normal; If | V1-V is horizontal | be greater than 4, and | V1-V indulges | be greater than 4, or | V2-V is horizontal | be greater than 4, and | V2-V indulges | and be greater than 4, then described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
The threshold value that the embodiment of the present invention is detected by preset in advance one sampled data, when the difference of described sampled data and described standard sample data is less than or equal to predetermined threshold value, judge that described signaling interface performance is normal, when the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, judge described signaling interface property abnormality.Prevent the result of the differentia influence signaling interface Performance Detection occurred in sampling process, improve the accuracy that signaling interface detects.
Further, described processing module 20 also for: when described signaling interface performance is normal, prompting subscriber signal interface capability is normal;
When described signaling interface property abnormality, prompting subscriber signal interface capability is abnormal and abnormal reason occurs.
Television set is when determining that described signaling interface performance is normal, send information, described information can be the forms such as picture, sound, word, and content can be detect by informations such as, signaling interface are normal, detects by, signaling interface performance normal with cue interface.Television set, when determining described signaling interface property abnormality, sends information, described information can comprise signaling interface detect unsuccessfully, detect not by and/or signaling interface there is abnormal reason.It can be with the color value etc. of the picture of the picture offset coordinates of error code, signal to be detected, signal to be detected that described signaling interface sends abnormal reason.The abnormal conditions that described error code is corresponding different respectively, for coordinate offset, when horizontal picture, if in the most left or the rightest vitta (color-bar namely in horizontal detected image signal) pixel number ratio standard detection picture signal, the pixel quantity of corresponding vitta is few in horizontal detected image signal, other vitta pixel quantity are normal, (or to the right) skew left can be described, as when longitudinal picture, if go up most in longitudinal detected image signal or in lower vitta pixel number ratio standard detection picture signal the pixel quantity of corresponding vitta few, other vitta pixel quantity is normal, represent and offset up or down, for color data error, as time in the threshold range of the color value of color value not in standard sample data in respective coordinates in respective coordinates in picture signal to be detected then represents to there is color data error.
The embodiment of the present invention, by when signaling interface is normal or abnormal, sends prompting message, can understand the state of signaling interface detection in time, and process for emergency case in time for user, improves the efficiency that television signal interface detects.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a television set, is characterized in that, this television set comprises:
Respond module, for when receiving the detection instruction of signaling interface, entering signal interface detecting pattern;
Processing module, for determining the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, wherein said picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard;
Sampling module, obtains the sampled data of picture signal to be detected for carrying out described picture signal to be detected sampling;
Detection module, for when described sampled data and described standard sample Data Matching, judges that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
2. television set as claimed in claim 1, it is characterized in that, this television set also comprises:
Described sampling module, also for obtaining a frame picture in the picture from picture signal to be detected at random as the first picture;
When the picture of described picture signal to be detected replaces, obtain another frame picture as the second picture;
Described first picture and described second picture are diagonally sampled respectively, obtains the first sampled data and the second sampled data.
3. television set as claimed in claim 2, is characterized in that,
Described detection module, also for described first sampled data and described second sampled data being mated with described standard lateral sampled data and the longitudinal sampled data of described standard;
Mate with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal.
4. television set as claimed in claim 1, is characterized in that,
Described detection module, whether the difference also for analyzing described sampled data and described standard sample data is greater than predetermined threshold value;
When the difference of described sampled data and described standard sample data is less than or equal to described predetermined threshold value, described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal;
When the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
5. the television set as described in any one of claim 1-4, is characterized in that, the sampled data of described picture signal to be detected comprises quantity and/or the color value of pixel in each picture signal to be detected.
6. a detection method for television signal interface, is characterized in that, the method comprising the steps of:
When receiving the detection instruction of signaling interface, entering signal interface detecting pattern;
Determine the type of picture signal to be detected in interface to be detected, and according to the standard sample data preset and the mapping relations of picture signal type to be detected, determine the standard sample data that described picture signal to be detected is corresponding, described picture signal to be detected is the picture signal that horizontal detected image signal and longitudinal detected image signal are alternately formed, and described standard sample data comprise standard lateral sampled data and the longitudinal sampled data of standard;
Carry out sampling to described picture signal to be detected and obtain the sampled data of picture signal to be detected;
When described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge described signaling interface property abnormality.
7. the detection method of television signal interface as claimed in claim 6, is characterized in that, described step of described picture signal to be detected being carried out to the sampled data of sampling acquisition picture signal to be detected comprises:
From the picture of picture signal to be detected, the random frame picture that obtains is as the first picture;
When the picture of described picture signal to be detected replaces, obtain another frame picture as the second picture;
Described first picture and described second picture are diagonally sampled respectively, obtains the first sampled data and the second sampled data.
8. the detection method of television signal interface as claimed in claim 7, is characterized in that, described when described sampled data and described standard sample Data Matching, judges that the normal step of described signaling interface performance comprises:
Described first sampled data and described second sampled data are mated with described standard lateral sampled data and the longitudinal sampled data of described standard;
Mate with described standard lateral sampled data in described first sampled data, and described second sampled data is when mating with the longitudinal sampled data of described standard, or mate in the longitudinal sampled data of described first sampled data and described standard, and described second sampled data is when mating with described standard lateral sampled data, judge that described signaling interface performance is normal.
9. the detection method of television signal interface as claimed in claim 6, it is characterized in that, described when described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal, when described sampled data is not mated with described standard sample data, judge that the step of described signaling interface property abnormality comprises:
Whether the difference analyzing described sampled data and described standard sample data is greater than predetermined threshold value;
When the difference of described sampled data and described standard sample data is less than or equal to described predetermined threshold value, described sampled data and described standard sample Data Matching, judge that described signaling interface performance is normal;
When the difference of described sampled data and described standard sample data is greater than described predetermined threshold value, described sampled data is not mated with described standard sample data, judges described signaling interface property abnormality.
10. the detection method of the television signal interface as described in any one of claim 6 to 9, is characterized in that, the sampled data of described picture signal to be detected comprises quantity and/or the color value of pixel in each picture signal to be detected.
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