CN110632415B - Device, system and method for testing plate-end LCM interface - Google Patents
Device, system and method for testing plate-end LCM interface Download PDFInfo
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- CN110632415B CN110632415B CN201910851916.0A CN201910851916A CN110632415B CN 110632415 B CN110632415 B CN 110632415B CN 201910851916 A CN201910851916 A CN 201910851916A CN 110632415 B CN110632415 B CN 110632415B
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The invention discloses a device, a system and a method for testing a plate-end LCM interface, wherein the device comprises an LCM interface unit, a test unit and an alarm unit, the LCM interface unit comprises an LCD interface, and the test unit comprises two power supply points: and the power supply point LED _ A and the power supply point LED _ K are used for electrifying the power supply point LED _ A and the power supply point LED _ K and determining the test result of the LCM interface according to the working state of the alarm unit, and the alarm unit is used for displaying the test result. The equipment for testing the LCM interface of the invention enables the LCM interface to be tested efficiently and simply by electrifying the power supply point LED _ A and the power supply point LED _ K and determining the test result of the LCM interface according to the working state of the alarm unit, and meanwhile, the equipment with the screen can find problems in time in the production process, thereby avoiding material scrapping caused by delayed finding of the problems.
Description
Technical Field
The invention relates to the field of hardware testing, in particular to equipment, a system and a method for testing a board-end LCM interface.
Background
At present, in the production test process of equipment with a screen, the interface test on a mainboard is to judge whether the interface is normal by observing whether the screen is normally displayed after the equipment is assembled into a complete machine, and the current test has the following defects:
1. testing for the motherboard interface can only be done on assembly, resulting in delayed discovery of problems.
2. The problem is detected at the assembly end and it is not possible to confirm whether it is a problem with the interface or a problem with the LCM.
3. Problems that occur after assembly require disassembly, which can cause scrapping of the material.
Based on the current board-side LCM interface test, a device and a method for testing the board-side LCM interface are needed to solve the above problems.
Disclosure of Invention
The embodiment of the invention provides equipment, a system and a method for testing a board-end LCM interface, which are used for solving the problem of how to test the LCM interface so as to timely and accurately find the board-end LCM interface.
In a first aspect, an embodiment of the present invention provides a device for testing a board-side LCM interface, including: the LCM interface unit, the test unit and the alarm unit;
the LCM interface unit comprises an LCD interface;
the test unit comprises two power supply points: a power supply point LED _ A and a power supply point LED _ K; the power supply unit is used for powering on the power supply point LED _ A and the power supply point LED _ K and determining a test result of the LCM interface according to the working state of the alarm unit;
a first port of the LCD interface is connected with an LED _ A, and a second port of the LCD interface is connected with an LED _ K;
the alarm unit is used for displaying the test result.
According to the scheme, the power supply point LED _ A and the power supply point LED _ K are powered on, and the test result of the LCM interface is determined according to the working state of the alarm unit, so that the LCM interface is efficient and simple to test, meanwhile, the screen-equipped equipment can timely find problems in the production process, and the problem delay finding is avoided, and the material scrapping caused by the problem delay finding is avoided.
Optionally, the power supply point LED _ a is connected to the positive electrode of the power supply, and the power supply point LED _ K is connected to the negative electrode of the power supply.
Optionally, when the alarm unit is in a working state, the test unit determines that the test result of the LCM interface is normal;
and when the working state of the alarm unit is non-working, the test unit determines that the test result of the LCM interface is abnormal.
In the above scheme, for example, when the alarm unit is a ring, when the ring sounds, it indicates that the circuit is not abnormal, it indicates that the LCM is normal, and when the ring does not sound, it indicates that the circuit is abnormal, that is, the LCM is abnormal.
Optionally, before the test unit powers on the power supply point LED _ a and the power supply point LED _ K, it is further determined whether a signal of the LCM interface unit is received; if so, the test is suspended.
According to the scheme, the LCM is tested before being assembled in the production process of the screen-carrying equipment, so that problems are timely found, and material scrapping caused by disassembling when the problems are found after the whole equipment is assembled is avoided.
Optionally, the alarm unit is an alarm.
According to the scheme, the alarm of the alarm unit can be a bell or a bulb.
In a second aspect, an embodiment of the present invention provides a method for testing an LCM interface, including:
powering up a power supply point LED _ A and a power supply point LED _ K;
acquiring the working state of an alarm unit;
and determining the test result of the LCM interface according to the working state of the alarm unit.
Above-mentioned scheme is through going on electrically to power supply point LED _ A and power supply point LED _ K, confirms the test result of LCM interface according to the operating condition of alarm again for LCM interface test is high-efficient simple, takes the screen equipment simultaneously can in time discover the problem in process of production, thereby avoids the problem to delay the material that discovery arouses and scrap.
Optionally, the determining the test result of the LCM interface according to the working state of the alarm unit includes:
if the working state of the alarm unit is working, determining that the test result of the LCM interface is normal;
and if the working state of the alarm unit is non-working, determining that the test result of the LCM interface is abnormal.
According to the scheme, for example, when the alarm rings, the sound is emitted, the circuit is not abnormal, the LCM is normal, and when the alarm rings do not ring, the circuit is abnormal, namely the LCM is abnormal.
Optionally, before the power supply points LED _ a and LED _ K are powered on, the method further includes:
determining whether a signal of the LCM interface unit is received;
if so, the test is suspended.
According to the scheme, the LCM is tested before being assembled in the production process of the screen-carrying equipment, so that problems are timely found, and material scrapping caused by disassembling when the problems are found after the whole equipment is assembled is avoided.
Optionally, the alarm unit is an alarm.
In a third aspect, an embodiment of the present invention provides a system for testing a board-side LCM interface, including the board-side LCM interface testing apparatus described in the first aspect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a board-side LCM interface testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for testing an LCM interface according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for testing an LCM interface according to an embodiment of the invention;
FIG. 4 is a schematic flow chart of a device production test according to an embodiment of the present invention.
Detailed Description
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the specification, and it should be understood that the embodiments and specific features of the embodiments of the present invention are detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features of the embodiments and examples of the present invention may be combined with each other without conflict.
Fig. 1 shows a board-side LCM interface test apparatus according to an embodiment of the present invention, and as shown in fig. 1, the board-side LCM interface test apparatus includes: LCM interface unit, test unit and alarm unit.
The LCM interface unit includes an LCD interface. The test unit includes two power supply points: and the power supply point LED _ A and the power supply point LED _ K are used for electrifying the power supply point LED _ A and the power supply point LED _ K and determining the test result of the LCM interface according to the working state of the alarm unit.
The first port of the LCD interface is connected with the LED _ A, and the second port of the LCD interface is connected with the LED _ K. And the power supply point LED _ A is connected with the anode of the power supply, and the power supply point LED _ K is connected with the cathode of the power supply.
The alarm unit is used for displaying the test result and is an alarm. As shown in fig. 1, the alarm unit is a bulb, and after the power supply point LED _ a and the power supply point LED _ K are powered on, if the bulb is on, it indicates that the test result of the LCM interface is normal, and if the bulb is not on, it indicates that the test result of the LCM interface is abnormal.
Further, when the working state of the alarm unit is working, the test unit determines that the test result of the LCM interface is normal, and when the working state of the alarm unit is not working, the test unit determines that the test result of the LCM interface is abnormal. Before the test unit powers on the power supply point LED _ A and the power supply point LED _ K, whether a signal of the LCM interface unit is received or not is further determined, and if yes, the test is suspended.
In order to better explain the embodiment of the present invention, the flow of the LCM interface testing method proposed by the embodiment of the present invention is further explained with reference to fig. 2,
fig. 2 exemplarily shows a flow of an LCM interface testing method provided by an embodiment of the present invention. The process can be executed by board-side LCM interface test equipment.
As shown in fig. 2, the process specifically includes:
The power supply point LED _ a is connected to the positive electrode of the power supply, and the power supply point LED _ K is connected to the negative electrode of the power supply.
It should be noted that the alarm unit may be a bell or a light bulb. So that the test result is easy to identify.
And step 203, determining a test result of the LCM interface according to the working state of the alarm unit.
Specifically, if the working state of the alarm unit is working, the test result of the LCM interface is determined to be normal, and if the working state of the alarm unit is not working, the test result of the LCM interface is determined to be abnormal.
Further, for example, when the alarm rings, the sound is emitted by the alarm rings, it indicates that the circuit is not abnormal, and indicates that the LCM is normal, and when the alarm rings do not ring, it indicates that the circuit is abnormal, that is, the LCM is abnormal.
It should be noted that, before powering on the power supply point LED _ a and the power supply point LED _ K, it is further determined whether a signal of the LCM interface unit is received, and if so, the test is suspended.
According to the scheme, the LCM is tested before being assembled in the production process of the screen-carrying equipment, so that problems are timely found, and material scrapping caused by disassembling when the problems are found after the whole equipment is assembled is avoided.
Furthermore, the equipment for testing the LCM interface is used for electrifying the power supply point LED _ A and the power supply point LED _ K and determining the test result of the LCM interface according to the working state of the alarm unit, so that the test of the LCM interface is efficient and simple, and meanwhile, the equipment with the screen can timely find problems in the production process, thereby avoiding the material scrapping caused by delayed finding of the problems.
To better explain the embodiment of the present invention, the following further describes a method for testing an LCM interface according to the embodiment of the present invention with reference to fig. 3, and fig. 3 is a schematic flow chart of the method for testing an LCM interface according to the embodiment of the present invention.
Step 301: and detecting and determining whether a signal of the LCM interface unit is received, and if not, powering on the power supply point. If so, the test is suspended. The problem of short circuit of the LCM caused by power supply to the LCM interface after the LCM interface is connected to the LCM is solved.
Step 302: and judging whether the bulb is lighted. If so, go to step 303, otherwise go to step 304.
Step 303: the test result is normal.
Step 304: the test result is abnormal.
According to the method, the power supply point is powered on, and the test result of the LCM interface is determined according to the working state of the bulb, so that the test of the LCM interface is efficient and simple, and meanwhile, the device with the screen can find problems in the production process in time, and material scrapping caused by delayed finding of the problems is avoided.
In addition, the embodiment of the invention provides a system for testing the LCM interface at the board end, which comprises the device for testing the LCM interface at the board end.
In order to better explain the embodiment of the present invention, the process location of the LCM interface test in the embodiment of the present invention will be described by the flow of the device generation test. Fig. 4 is a schematic flow chart of a device production test according to an embodiment of the present invention.
Step 401: and (6) surface mounting.
The surface mounting refers to a mounting and connecting technology for directly mounting and welding a surface assembly component to a specified position on the surface of a printed board without drilling a mounting hole on the printed board.
Step 402: the version is downloaded.
And downloading the system version of the board end.
Step 403: and testing the functions of the board end.
Various functions of the motherboard are tested.
Step 404: and testing a plate end LCM interface.
The LCM interface at the board end is tested, that is, the execution position of the LCM interface test scheme provided by the embodiment of the present invention is provided.
Step 405: and (6) assembling.
It should be noted that, after step 404, board-side LCM interface testing is performed to intercept the problem before the device is assembled, so that the problem can be found in time. Material scrap resulting from the need to disassemble the entire machine for testing after step 405 is avoided.
Finally, it should be noted that: as will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An apparatus for testing a board-side LCM interface, comprising: the LCM interface unit, the test unit and the alarm unit; the alarm unit is connected to the test unit;
the LCM interface unit comprises an LCD interface;
the test unit comprises two power supply points: a power supply point LED _ A and a power supply point LED _ K; the testing unit is used for electrifying the power supply point LED _ A and the power supply point LED _ K and determining a testing result of the LCM interface according to the working state of the alarm unit;
a first port of the LCD interface is connected with an LED _ A, and a second port of the LCD interface is connected with an LED _ K;
the alarm unit is used for displaying the test result.
2. The apparatus of claim 1, wherein the power supply point LED _ a is connected to a positive pole of a power supply, and the power supply point LED _ K is connected to a negative pole of the power supply.
3. The apparatus of claim 1, wherein the testing unit determines that the test result of the LCM interface is normal when the operation state of the alarm unit is operation;
and when the working state of the alarm unit is non-working, the test unit determines that the test result of the LCM interface is abnormal.
4. The device of claim 1, wherein the test unit further determines whether a signal of the LCM interface unit is received before powering up a power point LED _ A and a power point LED _ K; if so, the test is suspended.
5. A device according to any one of claims 1 to 4, wherein the alarm unit is an alarm.
6. A method for LCM interface testing based on the board-end LCM interface testing equipment of any one of claims 1 to 5, comprising:
powering up a power supply point LED _ A and a power supply point LED _ K;
acquiring the working state of an alarm unit;
and determining the test result of the LCM interface according to the working state of the alarm unit.
7. The method of claim 6, wherein determining the test result of the LCM interface according to the operating state of the alarm unit comprises:
if the working state of the alarm unit is working, determining that the test result of the LCM interface is normal;
and if the working state of the alarm unit is non-working, determining that the test result of the LCM interface is abnormal.
8. The method of claim 6, wherein prior to powering up the power supply points LED _ A and LED _ K, the method further comprises:
determining whether a signal of the LCM interface unit is received;
if so, the test is suspended.
9. A method according to any one of claims 6 to 8, wherein the alarm unit is an alarm.
10. A board-end LCM interface test system, which comprises the board-end LCM interface test equipment as claimed in any one of claims 1 to 5.
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| CN201910851916.0A CN110632415B (en) | 2019-09-10 | 2019-09-10 | Device, system and method for testing plate-end LCM interface |
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| CN201910851916.0A CN110632415B (en) | 2019-09-10 | 2019-09-10 | Device, system and method for testing plate-end LCM interface |
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| CN110632415A (en) | 2019-12-31 |
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