CN117412033A - Sensitivity test method, device, equipment and storage medium - Google Patents
Sensitivity test method, device, equipment and storage medium Download PDFInfo
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- CN117412033A CN117412033A CN202310020800.9A CN202310020800A CN117412033A CN 117412033 A CN117412033 A CN 117412033A CN 202310020800 A CN202310020800 A CN 202310020800A CN 117412033 A CN117412033 A CN 117412033A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
Abstract
The application provides a sensitivity test method, a device, equipment and a storage medium, wherein the sensitivity test method comprises the following steps: responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel; transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television; and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength. The sensitivity detection is carried out according to the output signal intensity change and the power change condition of the target television, the testing efficiency and the testing comprehensiveness are improved, the problem of channel missing detection is avoided, and the sensitivity detection accuracy is improved.
Description
Technical Field
The present application relates to the field of terminal testing, and in particular, to a sensitivity testing method, device, apparatus, and storage medium.
Background
At present, before the television leaves the factory, the television needs to be subjected to sensitivity test so as to judge the receiving sensitivity of the television, wherein the receiving sensitivity of the television is a parameter for measuring the minimum receiving power of the television and represents the minimum receiving power of the television when the index of a received signal reaches a minimum threshold value. The sensitivity requirements of different television modulation modes are different, the existing television modulation modes comprise ATSC, 256QAM, J.83B and the like, television channels of different television modulation modes are different, if all television channels of different television modulation modes are debugged, a great deal of labor cost and time cost are required, and if the detection is carried out by adopting a channel sampling detection mode, the sensitivity of the residual channels cannot be determined, so that the accuracy is poor.
Disclosure of Invention
The embodiment of the application provides a sensitivity test method, a sensitivity test device, sensitivity test equipment and a sensitivity test storage medium, and aims to solve the technical problems of complex test process and test omission of sensitivity test in the prior art.
In one aspect, an embodiment of the present application provides a sensitivity test method, including the steps of:
responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel;
transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television;
and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength.
In one possible implementation manner of the present application, the transmitting the test video signal to the target television according to the target modulation mode corresponding to the test channel and the preset output signal strength includes:
acquiring a test video signal of the test channel and an initial signal strength of the test video signal;
Acquiring a signal variation value corresponding to the target modulation mode, and adjusting the initial signal strength according to the signal variation value to obtain output signal strength;
and transmitting the test video signal of the test channel to the target television based on the output signal strength.
In one possible implementation manner of the present application, the obtaining a power variation value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power variation value and the output signal strength, includes:
invoking a pressure test module to perform power detection on the target television to obtain a power change value corresponding to the display image sequence;
if the power change value is larger than a preset power change threshold, adjusting the test video signal according to the preset signal change value until the power change value is smaller than the preset power change threshold;
if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
In one possible implementation manner of the present application, the obtaining the power variation value and the target signal strength corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power variation value and the target signal strength, includes:
A light sensing test module is called to collect the brightness value of a preset light sensing area in the target television, and a light sensing signal value corresponding to each display image in the display image sequence is obtained;
calculating a power variation value of the display image sequence according to the light sensation signal value corresponding to each display image;
if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
In one possible implementation manner of the present application, after the determining the target sensitivity of the test channel according to the power variation value and the target signal strength, the method further includes:
reading the test channel sequence number of the test channel and a preset target channel sequence number;
if the test channel sequence number is smaller than the target channel sequence number, driving the target television to switch the updated test channel, and generating a sensitivity test request corresponding to the updated test channel;
and if the test channel serial number is equal to the target channel serial number, collecting the target sensitivity of each test channel, and storing the target sensitivity of each test channel into a preset sensitivity database.
In one possible implementation manner of the present application, the driving the target television to switch between updating test channels includes:
reading a target modulation mode of the test channel and a channel switching frequency of the target modulation mode;
generating a target channel frequency for updating the test channel according to the channel frequency of the test channel and the channel switching frequency, and driving a target television to switch and update the test channel according to the target channel frequency;
after the target television is driven to switch the updated test channel, the method further comprises the following steps:
and transmitting the test video signal to the target television according to the target modulation mode and the output signal strength corresponding to the updated test channel, and obtaining a display image sequence of the target television.
In one possible implementation manner of the present application, the transmitting the test video signal to the target television according to the target modulation mode and the output signal strength corresponding to the updated test channel includes:
acquiring initial signal strength of the updated test channel;
resetting the test video signal of the updated test channel according to the initial signal strength to obtain a reset test video signal;
And adjusting the reset test video signal according to the target modulation mode of the updated test channel and the corresponding signal change value, and transmitting the adjusted test video signal to the target television.
In another aspect, the present application provides a sensitivity test apparatus, including:
the data acquisition module is configured to respond to the sensitivity test request and acquire a target television to be tested, a test channel and a test video signal of the test channel;
the signal adjustment module is configured to transmit the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel, so as to obtain a display image sequence of the target television;
and the sensitivity detection module is configured to acquire a power variation value and output signal intensity corresponding to the display image sequence, and determine the target sensitivity of the test channel according to the power variation value and the output signal intensity.
In another aspect, the present application further provides a sensitivity test apparatus, including:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the steps of the sensitivity test method.
In another aspect, the present application also provides a computer readable storage medium having stored thereon a computer program to be loaded by a processor for performing the steps of the sensitivity test method.
In the method, a target television to be tested, a test channel and a test video signal corresponding to the test channel are obtained by responding to a sensitivity test request; analyzing the test channel to obtain a target modulation mode corresponding to the test channel, transmitting a test video signal to a target television according to the target modulation mode and the output signal strength, and collecting a display image sequence of the target television; and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength. The sensitivity detection is carried out according to the output signal intensity change and the power change condition of the target television, the testing efficiency and the testing comprehensiveness are improved, the problem of channel missing detection is avoided, and the sensitivity detection accuracy is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a sensitivity test method according to an embodiment of the present application;
FIG. 2 is a flow chart of one embodiment of a sensitivity testing method according to the embodiments of the present application;
FIG. 3 is a flow chart of an embodiment of detecting target sensitivity of a test channel in the sensitivity test method provided in the embodiments of the present application;
FIG. 4 is a flow chart of an embodiment of switching test channels in the sensitivity test method according to the embodiment of the present application;
FIG. 5 is a schematic structural diagram of an embodiment of a sensitivity test apparatus provided in the embodiments of the present application;
FIG. 6 is a schematic structural diagram of one embodiment of a sensitivity test apparatus provided in an embodiment of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
At present, before the television leaves the factory, the television needs to be subjected to sensitivity test so as to judge the receiving sensitivity of the television, wherein the receiving sensitivity of the television is a parameter for measuring the minimum receiving power of the television and represents the minimum receiving power of the television when the index of a received signal reaches a minimum threshold value. The sensitivity requirements of different television modulation modes are different, the existing television modulation modes comprise ATSC, 256QAM, J.83B and the like, television channels of different television modulation modes are different, if all television channels of different television modulation modes are debugged, a great deal of labor cost and time cost are required, and if the detection is carried out by adopting a channel sampling detection mode, the sensitivity of the residual channels cannot be determined, so that the accuracy is poor.
Based on the above, the application provides a sensitivity test method, a sensitivity test device, a sensitivity test equipment and a computer readable storage medium, so as to solve the technical problems of complicated test process and test omission of sensitivity test in the prior art.
The sensitivity test method in the embodiment of the invention is applied to a sensitivity test device, the sensitivity test device is arranged in a sensitivity test device, one or more processors, a memory and one or more application programs are arranged in the sensitivity test device, wherein the one or more application programs are stored in the memory and are configured to be executed by the processor to implement the sensitivity test method; the sensitivity test equipment can be an intelligent terminal, such as a mobile phone, a tablet computer, network equipment, an intelligent computer and the like; alternatively, the sensitivity test device may be a server, or a service cluster formed by a plurality of servers.
As shown in fig. 1, fig. 1 is a schematic view of a scenario of a sensitivity test method according to an embodiment of the present application, where the sensitivity test scenario includes a sensitivity test apparatus 100 (a sensitivity test device is integrated in the sensitivity test apparatus 100) and a target television 200, and a computer readable storage medium corresponding to the sensitivity test method is run in the sensitivity test apparatus 100 to execute steps of the sensitivity test method. The target television 200 is a television terminal to be subjected to sensitivity detection.
It should be understood that the sensitivity test apparatus in the scenario of the sensitivity test method shown in fig. 1, or the device included in the sensitivity test apparatus, does not limit the embodiments of the present invention, that is, the number of devices and the type of devices included in the scenario of the sensitivity test method, or the number of devices and the type of devices included in each device, do not affect the overall implementation of the technical solution in the embodiments of the present invention, and may be regarded as equivalent replacement or derivative of the technical solution claimed in the embodiments of the present invention.
The sensitivity test device 100 in the embodiment of the invention is mainly used for: responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel;
transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television;
and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength.
The sensitivity test device 100 in the embodiment of the invention may be an independent sensitivity test device, such as an intelligent terminal including a mobile phone, a tablet computer, a network device, a server, and an intelligent computer, or may be a sensitivity test network or a sensitivity test cluster composed of a plurality of sensitivity test devices.
The embodiment of the application provides a sensitivity test method, a sensitivity test device, a sensitivity test equipment and a computer readable storage medium, and the sensitivity test method, the sensitivity test device, the sensitivity test equipment and the computer readable storage medium are respectively described in detail below.
It will be understood by those skilled in the art that the application environment shown in fig. 1 is only one application scenario related to the present application scenario, and is not limited to the application scenario of the present application scenario, and other application environments may further include more or fewer sensitivity test devices than those shown in fig. 1, or a sensitivity test network connection relationship, for example, only one sensitivity test device is shown in fig. 1, and it is understood that the scenario of the sensitivity test method may further include one or more sensitivity test devices, which is not limited herein in particular; the sensitivity test apparatus 100 may further comprise a memory for storing sensitivity data and other data.
It should be noted that, the schematic view of the scenario of the sensitivity test method shown in fig. 1 is only an example, and the scenario of the sensitivity test method described in the embodiment of the present invention is for more clearly describing the technical solution of the embodiment of the present invention, and does not constitute a limitation to the technical solution provided by the embodiment of the present invention.
Based on the above-mentioned scenario of the sensitivity test method, various embodiments of the sensitivity test method disclosed in the present invention are presented.
As shown in fig. 2, fig. 2 is a flow chart of one embodiment of a sensitivity test method according to the embodiment of the present application, where the sensitivity test method includes the following steps 201 to 204:
201. responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel;
the sensitivity test method in this embodiment is applied to a sensitivity test device, and the type and number of the sensitivity test devices are not specifically limited, that is, the sensitivity test device may be one or more intelligent terminals or servers, and in a specific embodiment, the sensitivity test device is a television signal generating device connected to a target television through a television signal line, and sends a test video signal to the target television to perform sensitivity test.
Specifically, the sensitivity test device is configured to perform channel sensitivity test on the target televisions when the target televisions leave the factory for detection, so as to determine the receiving sensitivity of each television channel of each target television under different target modulation modes. The receiving sensitivity of the television is a parameter for measuring the minimum receiving power of the television, which indicates the minimum receiving power of the television when the index of the received signal reaches the minimum threshold value, and when the receiving power of the television is higher than the receiving sensitivity, the television can normally demodulate the received television signal and normally display the television signal.
Specifically, in the operation process, the sensitivity test device is connected with a target television to be detected in a wired or wireless mode, and receives a sensitivity test request. The sensitivity test request is an operation instruction for driving the sensitivity test device to perform sensitivity detection on the target television. The sensitivity test request can be actively triggered by a user, for example, the user is a television factory detector, and the sensitivity test is actively triggered to the target television by clicking a sensitivity test button of the sensitivity test device. Optionally, the sensitivity test request may be automatically triggered by a sensitivity test device, where the sensitivity test device sets an automatic detection process in advance, and automatically triggers the sensitivity test request after detecting that the connection with the target television is successful.
Specifically, after receiving a sensitivity test request, the sensitivity test device acquires a target modulation mode and a test channel corresponding to the sensitivity test request. After determining the test channel to be tested, the sensitivity test equipment also accesses a preset test database, inputs the channel identification of the test channel into the test database, and acquires the test video signal of the test channel stored in the test database. The sensitivity test device performs sensitivity test on the test channel of the target television through the test video signal.
202. Transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television;
specifically, after the sensitivity test equipment acquires the test channel and the corresponding test video signal, the sensitivity test equipment transmits the test video signal to the target television according to the target modulation mode and the output signal strength of the test channel, and acquires the display image sequence of the target television.
Specifically, because the sensitivity specification requirements of the signals of different modulation modes are different, for example, the sensitivity specification requirement sensitivity of the ATSC modulation mode is greater than-83 dB, and the sensitivity specification requirement sensitivity of the 256qam modulation mode is greater than-62 dB, the sensitivity test device sets corresponding signal variation values and output intensity thresholds in advance according to the different modulation modes, and the output intensity thresholds are output signal intensity minimum values representing the test video signals.
After the test video signal of the test channel and the initial signal strength of the test video signal are obtained, the initial signal strength is adjusted according to the target modulation mode of the test channel, and the output signal strength is obtained. Optionally, in a specific embodiment, the initial signal strength of each test channel is-50 dB, and optionally, the initial signal strength of each test channel may be set by a user in a customized manner according to an actual application scenario.
Specifically, the sensitivity test device obtains a signal variation value corresponding to the target modulation mode of the test channel, and continuously adjusts the initial signal strength according to the signal variation value to obtain the output signal strength. The sensitivity test equipment transmits a test video signal of a test channel to the target television based on the output signal strength, and drives the target television to display pictures according to the test video signal, so that a display image sequence of the target television is acquired. The sensitivity test device continuously reduces and adjusts the intensity of the test video signal through the signal change value, so that the output signal intensity values of different image frames in the display image sequence may be different, and the sensitivity test device judges the target sensitivity of the test channel by detecting the display image sequence.
203. And acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength.
Specifically, after the sensitivity test device sends a test video signal to the target television, the power test module is used for detecting the power of the target television to obtain a power change value of the target television when the display image sequence is displayed, and the target sensitivity of the test channel is determined according to the power change value and the output signal strength of the test video signal.
Specifically, when the sensitivity test device transmits a test video signal to the target television and continuously reduces the signal intensity of the test video signal, the pressure test module is also called to continuously detect the television power corresponding to the display image sequence played by the target television, and the power change value corresponding to the display image sequence is calculated.
Specifically, since the display content of each frame is different when the target television plays the test video signal, the running power of the target television in the process of playing the dynamic picture is different, and therefore, the power change rate is larger; when the signal intensity is low and the receiving sensitivity of the test channel is low, the target television cannot normally display the content, pictures such as a black screen or a mosaic appear, the running power of the target television is kept unchanged or changed in a small amplitude, the power change value is small, and the sensitivity test equipment determines the target sensitivity of the test channel of the target television by detecting the power change value of the display image sequence.
Specifically, the sensitivity test device compares the obtained power change value with a preset power change threshold value, so as to judge the running state of the target television.
Optionally, if the power change value is greater than a preset power change threshold, the pressure test module outputs a high level, and the sensitivity test device determines that the target television is still playing the test video signal normally, and continues to modulate the test video signal according to the preset signal change value until the power change value is less than the power change threshold.
Optionally, if the power change value is smaller than the power change threshold and the duration exceeds the preset duration, the pressure test module outputs a low level, and the sensitivity test device determines that the output signal strength of the test video signal is lower than the receiving sensitivity of the target television on the test channel, so that the test video signal cannot be played. The preset duration is a time period set to avoid erroneous judgment due to replay of the video, and in a specific embodiment, the preset duration is 2 seconds.
And after receiving the low level output by the pressure test module, the sensitivity test equipment acquires the output signal strength corresponding to the power change rate smaller than the preset power change threshold value. And calculating the target sensitivity of the test channel according to the output signal strength and a preset error value, namely, taking the difference value between the output signal strength and the preset error value as the target sensitivity of the test channel. The preset error value is an error value representing a signal attenuation condition caused by connection or other reasons.
After the sensitivity test equipment calculates the target sensitivity of the test channel, the test channel and the target sensitivity are associated and stored in a preset sensitivity database, and the next test channel is switched to carry out sensitivity detection until all test channels in the target debugging mode are tested.
In this embodiment, the sensitivity test device obtains a target television and a test channel to be tested, and a test video signal corresponding to the test channel by responding to a sensitivity test request; analyzing the test channel to obtain a target modulation mode corresponding to the test channel, transmitting a test video signal to a target television according to the target modulation mode and the output signal strength, and collecting a display image sequence of the target television; and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength. The sensitivity detection is carried out according to the output signal intensity change and the power change condition of the target television, the testing efficiency and the testing comprehensiveness are improved, the problem of channel missing detection is avoided, and the sensitivity detection accuracy is improved.
As shown in fig. 3, fig. 3 is a flow chart of one embodiment of detecting target sensitivity of a test channel in the sensitivity test method provided in the embodiment of the present application, specifically, the method includes steps 301 to 304:
301. A light sensing test module is called to collect the brightness value of a preset light sensing area in the target television, and a light sensing signal value corresponding to each display image in the display image sequence is obtained;
302. calculating a power variation value of the display image sequence according to the light sensation signal value corresponding to each display image;
303. if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
304. and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
Based on the above embodiment, in this embodiment, the sensitivity detection apparatus is further capable of performing sensitivity detection on the target television through the light sensing test module and the test video signal, and determining the target sensitivity of the test channel.
Specifically, when the sensitivity detection device transmits the test video signal of the test channel to the target television for display, a preset light sensing area is arranged at a preset position of the display image sequence corresponding to the test video signal, and optionally, the preset light sensing area is a white square frame fixed in the preset area.
And after the target television displays the display image sequence, the sensitivity detection equipment invokes the light sensing test module to collect the brightness value of a preset light sensing area of the display image sequence in the target television so as to obtain a light sensing signal value corresponding to each display image in the display image sequence.
Specifically, since the sensitivity detection apparatus continuously decreases the output signal intensity of the test video signal according to the signal variation value, the luminance value of the preset light sensing area in the display image sequence also continuously decreases until the target television cannot normally display the test video signal, the preset light sensing area becomes a blue box, and at this time, the luminance value of the preset light sensing area is the lowest, so the sensitivity detection apparatus determines the sensitivity of the test channel of the target television by collecting the light sensing signal value of the display image sequence.
Specifically, after the light sensation signal value corresponding to each display image is obtained, the sensitivity detection device calculates the power change value of the display image sequence according to the light sensation signal value, so as to judge the target sensitivity of the test channel of the target television according to the power change value.
Specifically, the sensitivity test device compares the obtained power change value with a preset power change threshold value, so as to judge the running state of the target television.
Optionally, if the power change value is greater than a preset power change threshold, the sensitivity test device determines that the target television is still playing the test video signal normally, and continues to modulate the test video signal according to the preset signal change value until the power change value is less than the power change threshold.
Optionally, if the power change value is smaller than the power change threshold and the duration exceeds the preset duration, the sensitivity test device determines that the output signal strength of the test video signal is lower than the receiving sensitivity of the target television on the test channel, so that the test video signal cannot be played. The preset duration is a time period set to avoid erroneous judgment due to replay of the video, and in a specific embodiment, the preset duration is 2 seconds.
The sensitivity test equipment acquires the output signal intensity corresponding to the power change rate smaller than the preset power change threshold. And calculating the target sensitivity of the test channel according to the output signal strength and a preset error value, namely, taking the difference value between the output signal strength and the preset error value as the target sensitivity of the test channel. The preset error value is an error value representing a signal attenuation condition caused by connection or other reasons.
Optionally, the sensitivity test device may further directly determine a signal display state of the target television according to the light sensing signal value, and the sensitivity test device calls the light sensing test module to collect the light sensing signal value of the preset light sensing area, if the light sensing signal value is greater than the preset light sensing threshold, the light sensing test module outputs a high level, which indicates that the target television normally displays the test video signal; if the preset light sensing area is changed into blue due to no signal, the light sensing test module outputs a low level, the light sensing test module characterizes that the target television has no signal, the sensitivity test equipment acquires the output signal intensity at the moment after receiving the low level output by the light sensing test module, and the target sensitivity of the test channel is calculated according to the output signal intensity and a preset error value.
After the sensitivity test equipment calculates the target sensitivity of the test channel, the test channel and the target sensitivity are associated and stored in a preset sensitivity database, and the next test channel is switched to carry out sensitivity detection until all test channels in the target debugging mode are tested.
In this embodiment, the sensitivity test device acquires a luminance value of a preset light sensing area in the target television by calling a light sensing test module to obtain a light sensing signal value corresponding to each display image in the display image sequence; calculating a power variation value of the display image sequence according to the light sensation signal value corresponding to each display image; if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value; and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value. The target sensitivity of the test channel is automatically detected by detecting the light sensing signal value and the output signal strength of the target television, and the sensitivity detection efficiency is improved.
As shown in fig. 4, fig. 4 is a schematic flow chart of one embodiment of switching test channels in the sensitivity test method provided in the embodiment of the present application, specifically, the method includes steps 401 to 403:
401. Reading the test channel sequence number of the test channel and a preset target channel sequence number;
402. if the test channel sequence number is smaller than the target channel sequence number, driving the target television to switch the updated test channel, and generating a sensitivity test request corresponding to the updated test channel;
403. and if the test channel serial number is equal to the target channel serial number, collecting the target sensitivity of each test channel, and storing the target sensitivity of each test channel into a preset sensitivity database.
Based on the above embodiment, in this embodiment, after the sensitivity test is completed on the current test channel of the target television, the sensitivity test device automatically switches to the next test channel to perform the sensitivity test, so as to automatically perform the sensitivity test on all the channels to be tested of the target television.
Specifically, after the sensitivity test device tests the target sensitivity of the channel, the channel serial number of the channel is read, and the channel serial number is compared with the preset target channel serial number, so as to determine whether the channel is the last channel in the target modulation mode. The target channel number is the upper limit of the channel number set according to different target modulation modes, and the number of channels in different modulation modes is different.
Optionally, if the test channel number is smaller than the target channel number, the sensitivity test device drives the target television to switch the update test channel, and generates a sensitivity test request corresponding to the update test channel.
Specifically, the sensitivity test device acquires a target modulation mode of the test channel and a channel switching frequency corresponding to the target modulation mode, generates a target channel frequency of the updated test channel according to the acquired channel switching frequency and the channel frequency of the test channel, and drives the television to switch to the updated test channel according to the target channel frequency.
After the driving target television is switched to the updated test channel, the sensitivity test equipment also acquires the initial signal strength of the updated test channel, and resets the test video signal of the updated channel according to the initial signal strength to obtain a reset test video signal.
After the reset test video signal is obtained, the sensitivity test device performs intensity modulation on the reset test video signal according to the target modulation mode of the updated test video and the corresponding signal variation value, and transmits the modulated test video signal to the target television to perform sensitivity detection.
Optionally, if the test channel number is equal to the target channel number, the sensitivity test device determines that the sensitivity test of the target modulation mode is completed, and the sensitivity test device gathers the target sensitivities of the test channels and stores the target sensitivities of the test channels in a preset sensitivity database for storage.
In this embodiment, the sensitivity test device reads the test channel number of the test channel and a preset target channel number; if the test channel sequence number is smaller than the target channel sequence number, driving the target television to switch the updated test channel, and generating a sensitivity test request corresponding to the updated test channel; and if the test channel serial number is equal to the target channel serial number, collecting the target sensitivity of each test channel, and storing the target sensitivity of each test channel into a preset sensitivity database. The automatic switching of the test channels is realized, and the missing test of the problem channels is avoided.
In order to better implement the sensitivity testing method in the embodiment of the present application, on the basis of the sensitivity testing method, the embodiment of the present application further provides a sensitivity testing device, as shown in fig. 5, fig. 5 is a schematic structural diagram of the sensitivity testing device provided in the embodiment of the present application, and specifically, the sensitivity testing device 500 includes:
A data acquisition module 501 configured to acquire a target television and a test channel to be tested, and a test video signal of the test channel in response to a sensitivity test request;
the signal adjustment module 502 is configured to transmit the test video signal to the target television according to the target modulation mode and the output signal strength corresponding to the test channel, so as to obtain a display image sequence of the target television;
the sensitivity detection module 503 is configured to obtain a power variation value and an output signal strength corresponding to the display image sequence, and determine the target sensitivity of the test channel according to the power variation value and the output signal strength.
In one possible implementation manner of the embodiment, the sensitivity detection device transmits the test video signal to the target television according to a target modulation mode corresponding to the test channel and a preset output signal strength, and includes:
acquiring a test video signal of the test channel and an initial signal strength of the test video signal;
acquiring a signal variation value corresponding to the target modulation mode, and adjusting the initial signal strength according to the signal variation value to obtain output signal strength;
And transmitting the test video signal of the test channel to the target television based on the output signal strength.
In one possible implementation manner of the embodiment, the method for determining the target sensitivity of the test channel by using the sensitivity detection device to obtain the power variation value corresponding to the display image sequence includes:
invoking a pressure test module to perform power detection on the target television to obtain a power change value corresponding to the display image sequence;
if the power change value is larger than a preset power change threshold, adjusting the test video signal according to the preset signal change value until the power change value is smaller than the preset power change threshold;
if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
In one possible implementation manner of the embodiment, the method for determining the target sensitivity of the test channel by using the sensitivity detection device to obtain a power variation value and a target signal strength corresponding to the display image sequence includes:
A light sensing test module is called to collect the brightness value of a preset light sensing area in the target television, and a light sensing signal value corresponding to each display image in the display image sequence is obtained;
calculating a power variation value of the display image sequence according to the light sensation signal value corresponding to each display image;
if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
In one possible implementation manner of the embodiment, after the sensitivity detection device determines the target sensitivity of the test channel according to the power variation value and the target signal strength, the method further includes:
reading the test channel sequence number of the test channel and a preset target channel sequence number;
if the test channel sequence number is smaller than the target channel sequence number, driving the target television to switch the updated test channel, and generating a sensitivity test request corresponding to the updated test channel;
and if the test channel serial number is equal to the target channel serial number, collecting the target sensitivity of each test channel, and storing the target sensitivity of each test channel into a preset sensitivity database.
In one possible implementation manner of the embodiment, the sensitivity detection device drives the target television to switch between updating test channels, including:
reading a target modulation mode of the test channel and a channel switching frequency of the target modulation mode;
generating a target channel frequency for updating the test channel according to the channel frequency of the test channel and the channel switching frequency, and driving a target television to switch and update the test channel according to the target channel frequency;
after the sensitivity detection device drives the target television to switch the updated test channel, the method further comprises the following steps:
and transmitting the test video signal to the target television according to the target modulation mode and the output signal strength corresponding to the updated test channel, and obtaining a display image sequence of the target television.
In one possible implementation manner of the embodiment, the sensitivity detection device transmits the test video signal to the target television according to the target modulation mode and the output signal strength corresponding to the updated test channel, and includes:
acquiring initial signal strength of the updated test channel;
resetting the test video signal of the updated test channel according to the initial signal strength to obtain a reset test video signal;
And adjusting the reset test video signal according to the target modulation mode of the updated test channel and the corresponding signal change value, and transmitting the adjusted test video signal to the target television.
In this embodiment, the sensitivity detection device obtains the target television and the test channel to be tested and the test video signal corresponding to the test channel by responding to the sensitivity test request; analyzing the test channel to obtain a target modulation mode corresponding to the test channel, transmitting a test video signal to a target television according to the target modulation mode and the output signal strength, and collecting a display image sequence of the target television; and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength. The sensitivity detection is carried out according to the output signal intensity change and the power change condition of the target television, the testing efficiency and the testing comprehensiveness are improved, the problem of channel missing detection is avoided, and the sensitivity detection accuracy is improved.
The embodiment of the invention also provides a sensitivity test device, as shown in fig. 6, and fig. 6 is a schematic structural diagram of an embodiment of the sensitivity test device provided in the embodiment of the application.
The sensitivity test device integrates any one of the sensitivity test devices provided by the embodiment of the invention, and comprises:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to perform the steps of the sensitivity test method described in any of the sensitivity test method embodiments above by the processor.
Specifically, the present invention relates to a method for manufacturing a semiconductor device. The sensitivity test apparatus may comprise one or more processors 601 of a processing core, one or more memories 602 of a computer readable storage medium, a power supply 603, and an input unit 604. It will be appreciated by those skilled in the art that the sensitivity test apparatus structure shown in fig. 6 is not limiting of the sensitivity test apparatus and may include more or fewer components than shown, or certain components in combination, or a different arrangement of components. Wherein:
the processor 601 is a control center of the sensitivity test apparatus, connects respective parts of the entire sensitivity test apparatus using various interfaces and lines, and performs various functions of the sensitivity test apparatus and processes data by running or executing software programs and/or modules stored in the memory 602 and calling data stored in the memory 602, thereby performing overall monitoring of the sensitivity test apparatus. Optionally, the processor 601 may include one or more processing cores; preferably, the processor 601 may integrate an application processor and a modem processor, wherein the application processor primarily handles operating systems, user interfaces, applications, etc., and the modem processor primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 601.
The memory 602 may be used to store software programs and modules, and the processor 601 may execute various functional applications and data processing by executing the software programs and modules stored in the memory 602. The memory 602 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data created according to the use of the sensitivity test apparatus, or the like. In addition, the memory 602 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 602 may also include a memory controller to provide access to the memory 602 by the processor 601.
The sensitivity test apparatus further comprises a power supply 603 for supplying power to the respective components, and preferably the power supply 603 may be logically connected to the processor 601 through a power management system, so that functions of managing charging, discharging, power consumption management and the like are achieved through the power management system. The power supply 603 may also include one or more of any components, such as a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
The sensitivity test apparatus may further comprise an input unit 604, which input unit 604 may be used for receiving input numerical or character information and generating keyboard, mouse, joystick, optical or trackball signal inputs in connection with user settings and function control.
Although not shown, the sensitivity test apparatus may further include a display unit or the like, which is not described herein. Specifically, in this embodiment, the processor 601 in the sensitivity test apparatus loads executable files corresponding to the processes of one or more application programs into the memory 602 according to the following instructions, and the processor 601 executes the application programs stored in the memory 602, so as to implement various functions as follows:
responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel;
transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television;
and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength.
To this end, embodiments of the present invention provide a computer-readable storage medium, which may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like. On which a computer program is stored, which computer program is loaded by a processor for performing the steps of any one of the sensitivity test methods provided by the embodiments of the present invention. For example, the loading of the computer program by the processor may perform the steps of:
responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel;
transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television;
and acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description of other embodiments, which are not described herein again.
In the implementation, each unit or structure may be implemented as an independent entity, or may be implemented as the same entity or several entities in any combination, and the implementation of each unit or structure may be referred to the foregoing method embodiments and will not be repeated herein.
The specific implementation of each operation above may be referred to the previous embodiments, and will not be described herein.
The foregoing has outlined some of the more detailed description of a method for testing sensitivity provided by the examples of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present invention, and wherein the above examples are provided to assist in the understanding of the methods and core concepts of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (10)
1. A sensitivity test method, characterized in that the sensitivity test method comprises:
responding to a sensitivity test request, and acquiring a target television to be tested, a test channel and a test video signal of the test channel;
transmitting the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel to obtain a display image sequence of the target television;
And acquiring a power change value corresponding to the display image sequence, and determining the target sensitivity of the test channel according to the power change value and the output signal strength.
2. The sensitivity test method according to claim 1, wherein said transmitting said test video signal to said target television according to a target modulation scheme and an output signal strength corresponding to said test channel comprises:
acquiring a test video signal of the test channel and an initial signal strength of the test video signal;
acquiring a signal variation value corresponding to the target modulation mode, and adjusting the initial signal strength according to the signal variation value to obtain output signal strength;
and transmitting the test video signal of the test channel to the target television based on the output signal strength.
3. The method for testing sensitivity according to claim 1, wherein said obtaining a power variation value corresponding to said sequence of display images, determining a target sensitivity of said test channel based on said power variation value and said output signal strength, comprises:
invoking a pressure test module to perform power detection on the target television to obtain a power change value corresponding to the display image sequence;
If the power change value is larger than a preset power change threshold, adjusting the test video signal according to the preset signal change value until the power change value is smaller than the preset power change threshold;
if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
and calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
4. The method for testing sensitivity according to claim 1, wherein said obtaining a power variation value and a target signal strength corresponding to said sequence of display images, determining a target sensitivity of said test channel based on said power variation value and said target signal strength, comprises:
a light sensing test module is called to collect the brightness value of a preset light sensing area in the target television, and a light sensing signal value corresponding to each display image in the display image sequence is obtained;
calculating a power variation value of the display image sequence according to the light sensation signal value corresponding to each display image;
if the power change value is smaller than a preset power change threshold value, acquiring the output signal strength corresponding to the power change value;
And calculating the target sensitivity of the test channel according to the output signal strength and a preset error value.
5. The sensitivity test method according to claim 1, wherein after said determining the target sensitivity of the test channel based on the power variation value and the target signal strength, further comprising:
reading the test channel sequence number of the test channel and a preset target channel sequence number;
if the test channel sequence number is smaller than the target channel sequence number, driving the target television to switch the updated test channel, and generating a sensitivity test request corresponding to the updated test channel;
and if the test channel serial number is equal to the target channel serial number, collecting the target sensitivity of each test channel, and storing the target sensitivity of each test channel into a preset sensitivity database.
6. The method of sensitivity testing according to claim 5, wherein said driving said target television to switch updated test channels comprises:
reading a target modulation mode of the test channel and a channel switching frequency of the target modulation mode;
generating a target channel frequency for updating the test channel according to the channel frequency of the test channel and the channel switching frequency, and driving a target television to switch and update the test channel according to the target channel frequency;
After the target television is driven to switch the updated test channel, the method further comprises the following steps:
and transmitting the test video signal to the target television according to the target modulation mode and the output signal strength corresponding to the updated test channel, and obtaining a display image sequence of the target television.
7. The method for testing sensitivity according to claim 6, wherein said transmitting said test video signal to said target television according to a target modulation scheme and an output signal strength corresponding to said updated test channel comprises:
acquiring initial signal strength of the updated test channel;
resetting the test video signal of the updated test channel according to the initial signal strength to obtain a reset test video signal;
and adjusting the reset test video signal according to the target modulation mode of the updated test channel and the corresponding signal change value, and transmitting the adjusted test video signal to the target television.
8. A sensitivity test apparatus, characterized in that the sensitivity test apparatus comprises:
the data acquisition module is configured to respond to the sensitivity test request and acquire a target television to be tested, a test channel and a test video signal of the test channel;
The signal adjustment module is configured to transmit the test video signal to the target television according to a target modulation mode and output signal intensity corresponding to the test channel, so as to obtain a display image sequence of the target television;
and the sensitivity detection module is configured to acquire a power variation value and output signal intensity corresponding to the display image sequence, and determine the target sensitivity of the test channel according to the power variation value and the output signal intensity.
9. A sensitivity test apparatus, characterized in that the sensitivity test apparatus comprises:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and are configured to be executed by the processor to implement the steps of the sensitivity test method of any one of claims 1 to 7.
10. A computer-readable storage medium, having stored thereon a computer program, the computer program being loaded by a processor to perform the steps of the sensitivity test method of any one of claims 1 to 7.
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