CN104519351A - Automatic test method for set top boxes - Google Patents
Automatic test method for set top boxes Download PDFInfo
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- CN104519351A CN104519351A CN201410790847.4A CN201410790847A CN104519351A CN 104519351 A CN104519351 A CN 104519351A CN 201410790847 A CN201410790847 A CN 201410790847A CN 104519351 A CN104519351 A CN 104519351A
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Abstract
An automatic test method for set top boxes includes: presetting a feature vector of an image sample and setting a matching threshold; transmitting a pre-written R test script program to an FPGA (field programmable gate array) set top box controller module; enabling the FPGA set top box controller module to start a script language analyzing submodule to analyze the R test script program; sending the analyzed test program to a signal emission submodule; enabling the signal emission submodule to send infrared signals to control corresponding operations of a to-be-tested set top box; enabling the FPGA set top box controller module to control video acquisition equipment to acquire video images, marking a frame of the images and receiving the images; enabling the FPGA set top box controller module to transmit the marked frame of the images to a signal conversion submodule; enabling the FPGA set top box controller module to start an image processing submodule to carry out image matching; judging whether the image matching degree is larger than the set threshold or not, if yes, finishing with no processing, and if no, finishing after monitoring pre-warning equipment is started for alarming. By the automatic test method for the set top boxes, unnecessary waste of manpower resources is avoided.
Description
Technical field
The present invention relates to a kind of set-top box test method.Particularly relate to a kind of Set Top Box automatic test approach that automatically can carry out exhaustive testing to Set Top Box.
Background technology
Automatic test is a kind of process artificial behavioral test driven being converted into machine execution, and automatic test can use simple script, carries out a large amount of repetitive operation, overcomes the test problem that human eye long-time fatigue, carelessness etc. are ignored.For involved Set Top Box Auto-Test System, automatically exhaustive testing can be carried out to Set Top Box, repeatedly control remote controller for a long time without the need to tester and various functional test carried out to Set Top Box, test function specifically can comprise Set Top Box work long hours after on the reliability of the impact of its performance, Set Top Box receiving front-end code stream analyzing data, normal operating time etc.
Summary of the invention
Technical problem to be solved by this invention is, provides one automatically can carry out exhaustive testing to Set Top Box, repeatedly controls remote controller to carry out various functional test Set Top Box automatic test approach to Set Top Box for a long time without the need to tester.
The technical solution adopted in the present invention is: a kind of Set Top Box automatic test approach, by the stb controller module based on FPGA and the video capture device that is connected with FPGA stb controller module, with the set-top box device of FPGA stb controller module wireless connections, the television set be connected by AV or HDMI transmission line with set-top box device, and with the Set Top Box Auto-Test System that FPGA stb controller module is consisted of the monitoring and early warning equipment that network is connected, comprise the steps:
1) FPGA stb controller module initialization, comprising: the characteristic vector of pre-set image sample and setting matching threshold;
2) the R test script program that will write in advance according to the content that will test of user, is transferred to FPGA stb controller module by USB interface;
3) FPGA stb controller module booting script language parse submodule resolves R test script program;
4) test program after parsing is sent to signal transmitting submodule by script analyzing sub-module;
5) signal transmitting submodule receives the test command sent, and according to function button corresponding on described test command simulating infrared remote-controller equipment, transmission infrared signal controls Set Top Box to be measured and carries out respective operations;
6) FPGA stb controller module controls video capture device gathers video image, and marks a two field picture;
7) two field picture of FPGA stb controller module receiver, video collecting device mark;
8) two field picture of described mark is transferred to signal transform subblock by FPGA stb controller module;
9) FPGA stb controller module starts image procossing submodule and carries out images match;
10) judge whether images match degree is greater than the threshold value of setting, is, be left intact end, otherwise terminate after startup monitoring and early warning equipment alarm.
Described FPGA stb controller module comprises script analyzing sub-module, signal launches submodule, signal transform subblock, image transform subblock, and described monitoring and early warning equipment comprises display device and the warning device that monitoring in real time gathers image.
Step 5) in often send an order can return an interrupt signal when signal launch submodule work, FPGA stb controller module opens the interrupt signal described in thread occasions listen.
Step 6) described in video capture device be after FPGA stb controller module listens to interrupt signal, carry out the real time image collection of video screen and mark a two field picture.
Step 7) in FPGA stb controller module receiver, video image capture module mark a two field picture transmitted by USB data line.
Step 8) in after FPGA stb controller module listens to interrupt signal, one two field picture of mark is transferred to signal transform subblock by HDMI transmission by stb controller module, signal transform subblock converts the rgb space image obtained to YUV4:2:2 image, signal conversion module is connected with the Internet, and image is monitored for user to display in real time by Internet Transmission.
Step 9) described in images match comprise the steps:
(1) by step 7) in the two field picture that marks be converted into gray-scale map;
(2) by gray-scale map histogram equalization;
(3) 2-d gaussian filters is carried out, to horizontal and vertical direction filtering and noise reduction respectively;
(4) the large law by simplifying calculates binary-state threshold, and carries out binaryzation to image;
(5) piecemeal and normalized are carried out to the image after binaryzation;
(6) by the multi-dimensional direction histogram feature vector constitutive characteristic vector matrix by all piecemeals, and be multiplied by weighting matrix, obtain image feature vector;
(7) Euclidean distance of the image feature vector that obtains of calculation procedure (6) and pre-set image sampling feature vectors is as matching degree.
Step (5) comprising: by image block, and adopt Canny operator compute gradient value size and Orientation to each piecemeal, normalization direction histogram obtains each piecemeal multi-dimensional direction histogram feature vector.
Step (5), when being normalized direction histogram, judge whether current pixel point is edge, if the counting of place piecemeal corresponding positions is then added 1 according to the direction of current pixel point by edge.
Step 10) if in be less than threshold value and show that it fails to match, the order counting that present frame test command is corresponding adds 1, and forms test report.
A kind of Set Top Box automatic test approach of the present invention, can carry out exhaustive testing to Set Top Box automatically, repeatedly controls remote controller for a long time carry out various functional test to Set Top Box without the need to tester.Avoid unnecessary waste of human resource; Test for some Set Top Box physical property, functions etc. does not need the duplication of labour of tester; Set Top Box is ordered accordingly according to certain protocol responses, has the automaticity of height; Additional image monitoring system, can make for the multimedia messages of transmission and effectively detecting, realize remote monitoring.
Accompanying drawing explanation
Fig. 1 is the formation schematic diagram of Set Top Box Auto-Test System;
Fig. 2 is Set Top Box Auto-Test System feature extraction flow chart;
Fig. 3 is Set Top Box Auto-Test System image processing module image block mode figure.
Embodiment
Below in conjunction with embodiment and accompanying drawing, a kind of Set Top Box automatic test approach of the present invention is described in detail.
A kind of Set Top Box automatic test approach of the present invention, be based on shown in Fig. 1 by FPGA stb controller module 1 and the video capture device 2 that is connected with FPGA stb controller module 1, with the set-top box device 3 of FPGA stb controller module 1 wireless connections, the television set 4 be connected by AV or HDMI transmission line with set-top box device 3, and the Set Top Box Auto-Test System formed by the monitoring and early warning equipment 5 that network is connected with FPGA stb controller module 1.Described FPGA stb controller module comprises script analyzing sub-module, signal launches submodule, signal transform subblock, image transform subblock.Described FPGA stb controller module 1 is also communicated with computer 6 and actor 7 by USB flash disk 8.Described monitoring and early warning equipment comprises display device and the warning device that monitoring in real time gathers image.
A kind of Set Top Box automatic test approach of the present invention, specifically comprises the steps:
1) FPGA stb controller module initialization, comprising: the characteristic vector of pre-set image sample and setting matching threshold;
2) the R test script program that will write in advance according to the content that will test of user, is transferred to FPGA stb controller module by USB interface;
3) FPGA stb controller module booting script language parse submodule resolves R test script program;
4) test program after parsing is sent to signal transmitting submodule by script analyzing sub-module;
Script parsing module meets the script file of R linguistic norm for resolving, the script meeting R linguistic norm is used to the work of controller top box test macro, it mainly defines the keypress function on infrared remote control equipment, namely use behalf standby, t represents quiet, f represents advance notice, in u representative, under d representative, l represents a left side, r represents the right side, o represents confirmation, e representative is exited, b representative returns, m represents menu, h represents family, a representative all, 0-9 represents numerical key 0-9, M representative information, U represent frequently page+, D represent frequently page-, P represents reservation, B represents broadcast/TV, E represents editor, S represents state, A represents sound channel, V represents video signal, O represents program request, T represents stock, X represents mailbox, N representative likes 1, W representative likes 2, I represent volume-, C represent volume+, Z represents photograph, L represents video recording.Wherein the representative of each identifier realizes a kind of function.The keyword of R language has: #, $, newline, and wherein " # " represents setting operation interval time, newline represents that a new order starts, " $ " represents that the overall circulation primary of whole script file terminates.The script of R language compilation is made up of one or more order, is distinguished between order by keyword newline, and every a line is translated into machine language control hardware as an order by translater and run; Each command statement comprises one or more variable, is separated between each variable by space bar.
5) signal transmitting submodule receives the test command sent, and according to function button corresponding on described test command simulating infrared remote-controller equipment, transmission infrared signal controls Set Top Box to be measured and carries out respective operations, often send an order when signal launches submodule work and can return an interrupt signal, FPGA stb controller module opens the interrupt signal described in thread occasions listen;
6) FPGA stb controller module controls video capture device gathers video image, and marking a two field picture, described video capture device after FPGA stb controller module listens to interrupt signal, carries out the real time image collection of video screen and marks a two field picture;
7) two field picture of FPGA stb controller module receiver, video collecting device mark, a two field picture of FPGA stb controller module receiver, video image capture module mark is transmitted by USB data line;
8) two field picture of described mark is transferred to signal transform subblock by FPGA stb controller module, after FPGA stb controller module listens to interrupt signal, one two field picture of mark is transferred to signal transform subblock by HDMI transmission by stb controller module, signal transform subblock converts the rgb space image obtained to YUV4:2:2 image, signal conversion module is connected with the Internet, and image is monitored for user to display in real time by Internet Transmission;
9) FPGA stb controller module starts image procossing submodule and carries out images match, and described images match as shown in Figure 2, comprises the steps:
(1) by step 7) in the two field picture that marks be converted into gray-scale map;
(2) by gray-scale map histogram equalization;
(3) 2-d gaussian filters is carried out, to horizontal and vertical direction filtering and noise reduction respectively;
(4) the large law by simplifying calculates binary-state threshold, and carries out binaryzation to image;
(5) piecemeal and normalized are carried out to the image after binaryzation, comprising:
By image block, adopt Canny operator compute gradient value size and Orientation to each piecemeal, normalization direction histogram obtains each piecemeal multi-dimensional direction histogram feature vector.When being normalized direction histogram, judge whether current pixel point is edge, if the counting of place piecemeal corresponding positions is then added 1 according to the direction of current pixel point by edge.
Method of partition example: by the training image A (size is M × N pixel) after Image semantic classification, be divided into the sub-block of 3 × 3 in a non-uniform manner, concrete partitioned mode as shown in Figure 3.Be designated as A respectively
1, A
2, A
3... A
9, wherein A
1, A
3, A
7, A
9size is
a
2, A
8size is
a
4, A
6size is
a
5size is
Direction histogram characteristic vector pickup method example: to A
iindividual piecemeal uses Canny operator compute gradient value size and Orientation, and the span in direction is [0 °, 360 °], in units of 5 °, side vector is turned to 72 parts.Determine whether certain pixel is edge, if this piecemeal corresponding positions counter is then added 1 according to the direction of this point by edge, finally obtain the direction histogram of this piecemeal, normalization direction histogram obtains this piecemeal 72 and ties up direction histogram characteristic vector ρ
i, by the eigenvectors matrix (ρ of 9 piecemeals
1, ρ
2, ρ
3..., ρ
9) be multiplied by weighting matrix
obtain the characteristic vector gathering image.
(6) by the multi-dimensional direction histogram feature vector constitutive characteristic vector matrix by all piecemeals, and be multiplied by weighting matrix, obtain image feature vector;
(7) image feature vector that obtains of calculation procedure (6) and pre-set image sampling feature vectors Euclidean distance as matching degree.
10) judge whether images match degree is greater than the threshold value of setting, is, be left intact end, otherwise terminate after startup monitoring and early warning equipment alarm.While the video gathered is mated frame by frame, shown in real time to monitoring and early warning equipment by Internet Transmission after converting the image of current rgb space to YUV image by signal transform subblock.In addition, if images match degree is less than threshold value show that it fails to match, the order counting that present frame test command is corresponding adds 1, and forms test report.
Claims (10)
1. a Set Top Box automatic test approach, by the stb controller module (1) based on FPGA and the video capture device (2) that is connected with FPGA stb controller module (1), with the set-top box device (3) of FPGA stb controller module (1) wireless connections, the television set (4) be connected by AV or HDMI transmission line with set-top box device (3), and the Set Top Box Auto-Test System to be formed by the monitoring and early warning equipment (5) that network is connected with FPGA stb controller module (1), it is characterized in that, comprise the steps:
1) FPGA stb controller module initialization, comprising: the characteristic vector of pre-set image sample and setting matching threshold;
2) the R test script program that will write in advance according to the content that will test of user, is transferred to FPGA stb controller module by USB interface;
3) FPGA stb controller module booting script language parse submodule resolves R test script program;
4) test program after parsing is sent to signal transmitting submodule by script analyzing sub-module;
5) signal transmitting submodule receives the test command sent, and according to function button corresponding on described test command simulating infrared remote-controller equipment, transmission infrared signal controls Set Top Box to be measured and carries out respective operations;
6) FPGA stb controller module controls video capture device gathers video image, and marks a two field picture;
7) two field picture of FPGA stb controller module receiver, video collecting device mark;
8) two field picture of described mark is transferred to signal transform subblock by FPGA stb controller module;
9) FPGA stb controller module starts image procossing submodule and carries out images match;
10) judge whether images match degree is greater than the threshold value of setting, is, be left intact end, otherwise terminate after startup monitoring and early warning equipment alarm.
2. a kind of Set Top Box automatic test approach according to claim 1, it is characterized in that, described FPGA stb controller module comprises script analyzing sub-module, signal launches submodule, signal transform subblock, image transform subblock, and described monitoring and early warning equipment comprises display device and the warning device that monitoring in real time gathers image.
3. a kind of Set Top Box automatic test approach according to claim 1, it is characterized in that, step 5) in often send an order can return an interrupt signal when signal launch submodule work, FPGA stb controller module opens the interrupt signal described in thread occasions listen.
4. a kind of Set Top Box automatic test approach according to claim 1, it is characterized in that, step 6) described in video capture device be after FPGA stb controller module listens to interrupt signal, carry out the real time image collection of video screen and mark a two field picture.
5. a kind of Set Top Box automatic test approach according to claim 1, is characterized in that, step 7) in FPGA stb controller module receiver, video image capture module mark a two field picture transmitted by USB data line.
6. a kind of Set Top Box automatic test approach according to claim 1, it is characterized in that, step 8) in after FPGA stb controller module listens to interrupt signal, one two field picture of mark is transferred to signal transform subblock by HDMI transmission by stb controller module, signal transform subblock converts the rgb space image obtained to YUV4:2:2 image, signal conversion module is connected with the Internet, and image is monitored for user to display in real time by Internet Transmission.
7. a kind of Set Top Box automatic test approach according to claim 1, is characterized in that, step 9) described in images match comprise the steps:
(1) by step 7) in the two field picture that marks be converted into gray-scale map;
(2) by gray-scale map histogram equalization;
(3) 2-d gaussian filters is carried out, to horizontal and vertical direction filtering and noise reduction respectively;
(4) the large law by simplifying calculates binary-state threshold, and carries out binaryzation to image;
(5) piecemeal and normalized are carried out to the image after binaryzation;
(6) by the multi-dimensional direction histogram feature vector constitutive characteristic vector matrix by all piecemeals, and be multiplied by weighting matrix, obtain image feature vector;
(7) Euclidean distance of the image feature vector that obtains of calculation procedure (6) and pre-set image sampling feature vectors is as matching degree.
8. a kind of Set Top Box automatic test approach according to claim 7, it is characterized in that, step (5) comprising: by image block, adopt Canny operator compute gradient value size and Orientation to each piecemeal, normalization direction histogram obtains each piecemeal multi-dimensional direction histogram feature vector.
9. a kind of Set Top Box automatic test approach according to claim 7, it is characterized in that, step (5) is when being normalized direction histogram, judge whether current pixel point is edge, if the counting of place piecemeal corresponding positions is then added 1 according to the direction of current pixel point by edge.
10. a kind of Set Top Box automatic test approach according to claim 1, is characterized in that, step 10) if in be less than threshold value and show that it fails to match, the order counting that present frame test command is corresponding adds 1, and forms test report.
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| CN110830791A (en) * | 2019-09-17 | 2020-02-21 | 广州朗国电子科技有限公司 | Automatic testing method, device and system for software function of television complete machine |
| CN112286123A (en) * | 2020-12-24 | 2021-01-29 | 武汉精测电子集团股份有限公司 | Bidirectional GPIO control method, signal generator and test equipment |
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Application publication date: 20150415 |