CN111123012A - System and method for life assessment of display product - Google Patents
System and method for life assessment of display product Download PDFInfo
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- CN111123012A CN111123012A CN201911393688.3A CN201911393688A CN111123012A CN 111123012 A CN111123012 A CN 111123012A CN 201911393688 A CN201911393688 A CN 201911393688A CN 111123012 A CN111123012 A CN 111123012A
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- 238000011156 evaluation Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000013480 data collection Methods 0.000 claims abstract description 8
- 238000007405 data analysis Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000004458 analytical method Methods 0.000 abstract description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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Abstract
The invention discloses a life evaluation system and method for displaying a product, wherein the system comprises: the power supply module is used for supplying power to a display product to be detected, and the power supply control module is used for controlling the power supply module to supply power to the display product to be detected according to preset parameters; the brightness meter is used for detecting the brightness of the display product to be detected; the brightness data collection module is used for collecting brightness detection data of the brightness meter; the current data collection module is used for collecting channel current data of the power supply module; and the service life evaluation module is used for receiving the brightness detection data and the channel current data. The system overcomes the problems that no existing device exists in the aspect of automatic life and life trend evaluation of an onboard display product in the prior art, the life test of the product is manually controlled, errors are easy to occur in data recording and analysis, and the system is inaccurate and low in efficiency.
Description
Technical Field
The invention relates to the technical field of display product detection, in particular to a life evaluation system and method for a display product.
Background
In the field of airborne display, the service life of a product is an important consideration direction and index for the reliability research of an airborne product. When the service life investigation or the identification test is carried out on the airborne product according to the requirements of the enterprise and military standards, the service life test can be carried out, and the working state (brightness change and current change) of the product is displayed through monitoring, so that the reliability of the airborne display product can be evaluated. At present, no existing device exists in the aspect of onboard display of the automatic service life and service life trend evaluation of products, the service life test of the products is manually controlled, errors are easy to occur when data recording and analysis are carried out, and the device is inaccurate and low in efficiency.
Therefore, it is an urgent need to solve the problem of the present invention to provide a system and method for evaluating the lifetime of a display product, which can automatically analyze the brightness and current variation trend of the product and perform the lifetime curve evaluation of the product during the use process.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to overcome the problems of the prior art that there is no existing device for automatically evaluating the lifetime and lifetime trend of an onboard display product, that a product lifetime test is artificially controlled, that data recording and analysis are prone to errors, that it is inaccurate, and that efficiency is low, thereby providing a lifetime evaluation system and method for displaying a product, which can automatically analyze the product luminance and current change trend and evaluate the product lifetime curve during use.
In order to achieve the above object, the present invention provides a life evaluation system for a display product, the system including:
a power supply module for supplying power to the display product to be tested,
the power supply control module is used for controlling the power supply module to supply power to the display product to be detected according to preset parameters;
the brightness meter is used for detecting the brightness of the display product to be detected;
the brightness data collection module is used for collecting brightness detection data of the brightness meter;
the current data collection module is used for collecting channel current data of the power supply module;
and the service life evaluation module is used for receiving the brightness detection data and the channel current data.
Preferably, the system further comprises:
and the timing control module is used for timing the power supply time and the power off time of the power supply control module.
Preferably, the power supply module is a multi-path programmable power supply.
Preferably, the life evaluation module further includes:
a data analysis component for creating a table using an API function and storing the brightness detection data and the channel current data in the table, respectively.
The invention also provides a life evaluation method for a display product, which utilizes the life evaluation system for the display product, and the method comprises the following steps:
controlling the power supply module to time and supply power to a display product to be detected according to preset time;
detecting the brightness data of the display product to be detected;
detecting channel current data of the power supply module;
and collecting the brightness data and the channel current data to evaluate the service life of the display product to be tested.
Preferably, the detection of the brightness data of the display product to be detected is performed by using a brightness meter; wherein,
before measurement, the brightness meter is placed on a normal line of the display product to be measured and vertically aligned with the center of a display screen of the display product to be measured.
Preferably, the power module is controlled to use a plurality of programmable power supplies in supplying power to the display product to be tested; wherein,
the baud rate of the multi-path programmable power supply is the same as that of the brightness meter; and the multi-path programmable power supply sets three power supply voltages to supply power to the display product to be tested.
Preferably, the preset time includes: the total power supply time is 2000 hours, and the power failure is controlled for 20 minutes every time the display product to be tested works for 100 minutes.
Preferably, after collecting the brightness data and the channel current data, the method further comprises:
creating a table through an API function;
storing the brightness detection data and the channel current data in the table.
According to the technical scheme, the service life evaluation system for the display product provided by the invention has the beneficial effects that: the device can automatically analyze the change trend of the brightness and the current of the product and evaluate the service life curve of the product, overcomes the problems that the repeatability and the control of the manual service life test operation of the airborne display product are inaccurate, and the data analysis is easy to make mistakes, realizes the full-automatic control and evaluation work of the service life test of the display product, and completely replaces the manual service life test evaluation work of the product.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a life evaluation system for displaying a product provided in a preferred embodiment of the present invention;
fig. 2 is a flowchart of a life evaluation method for a display product according to a preferred embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1, the present invention provides a life evaluation system for displaying a product, the system including:
a power supply module for supplying power to the display product to be tested,
the power supply control module is used for controlling the power supply module to supply power to the display product to be detected according to preset parameters;
the brightness meter is used for detecting the brightness of the display product to be detected;
the brightness data collection module is used for collecting brightness detection data of the brightness meter;
the current data collection module is used for collecting channel current data of the power supply module;
a lifetime evaluation module comprising a storage component for receiving the brightness detection data and the channel current data;
the power supply control module is connected with a serial port of a power supply module (IT6332) through a serial port 1 of a host, a baud rate of 9600bps can be set, power supply to a product is controlled, and a common SPComm control is utilized by a system, so that Comm1.StartComm opens the serial port 1; wherein,
a) sending a command (APP: VOLT 28,5,5) to the serial port to set three paths of power supply voltages;
b) sending a command (APP: OUT 1,1,1) and simultaneously opening three paths of voltages, and electrifying the product to work;
and sending a command (APP: OUT 0,0,0) and simultaneously stopping three paths of voltages, and stopping the work of the product when the power is cut off.
In a preferred embodiment of the present invention, the system further comprises:
and the timing control module is used for timing the power supply time and the power off time of the power supply control module.
In the above protocol, the total product life was tested for 2000 hours. Every 100 minutes of work, 20 minutes of power off:
the disconnection times are as follows: 120000min/100min 1200 times at 2000 h;
off time (min): 24000min for 20min × 1200 times;
total lifetime time (hours): 120000+ 24000-144000/60-2400 h;
from the energization to the end of the life, 2400 hours later, that is, the test was ended on 100 days.
And calculating to obtain 1200 cycles, and using Timer1 and Timer2 controls as timers for 100 minutes of power-on and 20 minutes of power-off to control a power supply control module to achieve the intermittent work of a product.
In a preferred embodiment of the present invention, the power module is a multi-channel programmable power supply.
In a preferred embodiment of the present invention, the life evaluation module further includes:
a data analysis component for creating a table using an API function and storing the brightness detection data and the channel current data in the table, respectively.
In the above scheme, an API function createoleiObject ('excel.application') is used to create an excel table (excelApp.Caption: 'TestData') under an application program catalog, and product current data and brightness data are respectively stored in TestData.xls, so that the lifetime of a display product can be conveniently evaluated according to the channel current data and the brightness data, and the evaluation rule can be set in advance.
As shown in fig. 2, the present invention also provides a life evaluation method for a display product, using the life evaluation system for a display product of any one of claims 1 to 4, characterized by comprising:
controlling the power supply module to time and supply power to a display product to be detected according to preset time;
detecting the brightness data of the display product to be detected;
detecting channel current data of the power supply module;
and collecting the brightness data and the channel current data to evaluate the service life of the display product to be tested.
In a preferred embodiment of the present invention, the detecting of the brightness data of the display product to be detected is performed by using a brightness meter; wherein,
before measurement, the brightness meter is placed on a normal line of the display product to be measured and vertically aligned with the center of a display screen of the display product to be measured.
In a preferred embodiment of the present invention, the power module is controlled to use multiple programmable power sources in supplying power to a display product to be tested; wherein,
the baud rate of the multi-path programmable power supply is the same as that of the brightness meter; and the multi-path programmable power supply sets three power supply voltages to supply power to the display product to be tested.
In a preferred embodiment of the present invention, the preset time includes: the total power supply time is 2000 hours, and the power failure is controlled for 20 minutes every time the display product to be tested works for 100 minutes.
In a preferred embodiment of the present invention, after the collecting the brightness data and the channel current data, the method further comprises:
creating a table through an API function;
storing the brightness detection data and the channel current data in the table.
In conclusion, the service life evaluation system and method for displaying the product provided by the invention can automatically analyze the change trend of the brightness and the current of the product and evaluate the service life curve of the product, overcome the problems that the operation repeatability and the operation of the airborne service life display test are not accurate manually, and the data analysis is easy to make mistakes, realize the full-automatic control and evaluation work of the service life test of the display product, and completely replace the manual evaluation work of the service life test of the product.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. A life assessment system for a display product, the system comprising:
a power supply module for supplying power to the display product to be tested,
the power supply control module is used for controlling the power supply module to supply power to the display product to be detected according to preset parameters;
the brightness meter is used for detecting the brightness of the display product to be detected;
the brightness data collection module is used for collecting brightness detection data of the brightness meter;
the current data collection module is used for collecting channel current data of the power supply module;
and the service life evaluation module is used for receiving and storing the brightness detection data and the channel current data.
2. The life assessment system for a display product of claim 1, further comprising:
and the timing control module is used for timing the power supply time and the power off time of the power supply control module.
3. The life assessment system for a display product of claim 1, wherein said power module is a multi-way programmable power supply.
4. The life assessment system for a display product of claim 1, wherein said life assessment module further comprises:
a data analysis component for creating a table using an API function and storing the brightness detection data and the channel current data in the table, respectively.
5. A life evaluation method for a display product, using the life evaluation system for a display product of any one of claims 1 to 4, the method comprising:
controlling the power supply module to time and supply power to a display product to be detected according to preset time;
detecting the brightness data of the display product to be detected;
detecting channel current data of the power supply module;
and collecting the brightness data and the channel current data to evaluate the service life of the display product to be tested.
6. The life evaluation method for a display product according to claim 5, wherein the detection of the luminance data of the display product to be tested is detected using a luminance meter; wherein,
before measurement, the brightness meter is placed on a normal line of the display product to be measured and vertically aligned with the center of a display screen of the display product to be measured.
7. The method for evaluating lifetime of a display product according to claim 5 or 6, wherein a plurality of programmable power supplies are used in controlling the power supply module to supply power to the display product to be tested; wherein,
the baud rate of the multi-path programmable power supply is the same as that of the brightness meter; and the multi-path programmable power supply sets three power supply voltages to supply power to the display product to be tested.
8. The life evaluation method for a display product according to claim 5, wherein the preset time includes: the total power supply time is 2000 hours, and the power failure is controlled for 20 minutes every time the display product to be tested works for 100 minutes.
9. The lifetime assessment method for a display product according to claim 5, wherein after said collecting said luminance data and said channel current data, said method further comprises:
creating a table through an API function;
storing the brightness detection data and the channel current data in the table.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285961A (en) * | 2020-11-18 | 2021-01-29 | 中航华东光电有限公司 | Automatic optical test system for liquid crystal display product |
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