CN117849654A

CN117849654A - Display unit hardware circuit abnormality detection method, electronic equipment and detection equipment

Info

Publication number: CN117849654A
Application number: CN202211214237.0A
Authority: CN
Inventors: 樊兴旺; 程甲一; 李鹏鹏; 杨城; 白绳武
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2024-04-09

Abstract

The application provides a display unit hardware circuit abnormality detection method, electronic equipment and detection equipment, and relates to the technical field of display, wherein the method comprises the steps of obtaining a lighting image when at least part of lamps in a display unit to be detected are lighted; determining whether the display unit to be tested has hardware circuit abnormality according to the lightened image and a prestored hardware abnormality judgment rule, wherein the prestored abnormality judgment rule comprises the following steps: one or more of a power supply abnormality determination rule, a tin connection determination rule, an integrated circuit abnormality determination rule, a pin abnormality determination rule, an open circuit determination rule, and a short circuit determination rule. The technical scheme provided by the application can reduce the detection cost of hardware abnormality of the display unit.

Description

Display unit hardware circuit abnormality detection method, electronic equipment and detection equipment

Technical Field

The application relates to the technical field of display, in particular to a display unit hardware circuit abnormality detection method, electronic equipment and detection equipment.

Background

Light emitting diodes (Light Emitting Diode, LEDs) are increasingly widely used in electronic products such as traffic lights, televisions, mobile phones and the like because of the characteristics of small volume, high luminous efficiency, long service life, energy conservation, environmental protection and the like, and the electronic products can perform abnormal lighting detection on the lamp beads before leaving the factory so as to ensure the qualification rate of the products.

However, the abnormal lighting detection can only detect which lamp beads have abnormal lighting, and cannot detect other hardware anomalies of the LED module, so that it is necessary to rely on electrical measurement to detect other hardware anomalies of the LED module.

Because special electrical measurement equipment is needed during the detection of the electrical measurement means, the detection cost is high, and therefore, how to reduce the detection cost of hardware abnormality of the LED module is a problem to be solved.

Disclosure of Invention

In view of the foregoing, the present application provides a method, an electronic device and a detecting device for detecting hardware circuit abnormality of a display unit, which are used for reducing the detecting cost of hardware abnormality of the display unit.

In order to achieve the above object, in a first aspect, an embodiment of the present application provides a method for detecting an abnormality of a hardware circuit of a display unit, including:

acquiring a lighting image when at least part of the lamps in the display unit to be tested are lighted;

determining whether the display unit to be tested has hardware circuit abnormality according to the lightened image and a prestored hardware abnormality judgment rule, wherein the prestored abnormality judgment rule comprises the following steps: one or more of a power supply abnormality determination rule, a tin connection determination rule, an integrated circuit abnormality determination rule, a pin abnormality determination rule, an open circuit determination rule, and a short circuit determination rule.

As an optional implementation manner of the embodiment of the present application, the pre-stored abnormality determination rule includes: a power abnormality determination rule, the power abnormality determination rule comprising: if the difference between the unpowered image of the display unit and the powered image of the display unit is smaller than a first threshold value, determining that the control power supply of the display unit is abnormal;

the method further comprises the steps of:

acquiring a first image of a display unit to be tested when power is not supplied;

the obtaining a lighting image when at least part of the lamps in the display unit to be tested are lighted comprises:

acquiring a second image of the display unit to be tested when the first color lamp beads are powered;

the determining whether the display unit to be tested has hardware circuit abnormality according to the lighting image and a pre-stored abnormality determination rule comprises the following steps:

and determining whether the display unit to be tested has power supply abnormality or not according to the first image, the second image and the power supply abnormality judgment rule.

As an optional implementation manner of the embodiment of the present application, the obtaining a lighting image when at least part of the light points in the display unit to be tested are lit further includes: acquiring a third image of the display unit to be tested when other lamp beads except the first color lamp bead are powered;

determining whether a power supply abnormality exists in the control power supply of the first color lamp bead in the display unit to be detected according to the first image, the second image and the power supply abnormality judging rule;

and determining whether the control power supply of other lamp beads except the first color lamp bead in the display unit to be detected is abnormal or not according to the first image, the third image and the power supply abnormality judgment rule.

As an optional implementation manner of the embodiment of the present application, the pre-stored abnormality determination rule includes: and a tin connection judgment rule, wherein the tin connection judgment rule comprises: if continuous abnormal lamp beads exist in the image when at least part of the lamp points in the display unit are lighted, the continuous abnormal lamp beads comprise dead lamps and dark lamps, and the continuous number of the continuous abnormal lamp beads is larger than a continuous number threshold value, determining that the dead lamps in the continuous abnormal lamp beads are tin-connected lamps;

the determining whether the display unit to be tested has hardware circuit abnormality according to the lighting image and a prestored hardware abnormality judgment rule comprises the following steps:

And determining whether the display unit to be tested has tin connection according to the lighting image and the tin connection judging rule.

As an optional implementation manner of the embodiment of the present application, the pre-stored abnormality determination rule includes: an integrated circuit anomaly determination rule, the integrated circuit anomaly determination rule comprising: if the lamp beads controlled by the same integrated circuit are determined to have abnormality according to the image when at least part of the lamp points in the display unit are lighted, and the abnormality of each lamp bead is the same, determining that the integrated circuit is an abnormal integrated circuit;

and determining whether the display unit to be tested has an integrated circuit abnormality or not according to the lighting image and the integrated circuit abnormality judging rule.

As an optional implementation manner of the embodiment of the present application, the pre-stored abnormality determination rule includes: a pin anomaly determination rule, the pin anomaly determination rule comprising: if the lamp beads controlled by the same pin are determined to have abnormality according to the image when at least part of the lamp points of the display unit are lighted, the abnormality of each lamp bead is the same, and the integrated circuit corresponding to the pin is not abnormal, determining that the pin is an abnormal pin;

and determining whether the display unit to be tested has abnormal pins or not according to the lighting image and the pin abnormality judging rule.

As an optional implementation manner of the embodiment of the present application, the pre-stored abnormality determination rule includes: an open circuit decision rule, the open circuit decision rule comprising: if dead lamps exist in the images when two lamp beads in the display unit are powered at intervals, and after the adjacent lamp beads are powered independently, other lamp beads are not powered in the adjacent lamp beads, and then the dead lamps are determined to have open circuits;

collecting a bevel graph of lamp beads in the display unit to be tested when two lamp beads are powered at intervals;

and determining whether the display unit to be tested has an open circuit or not according to the diagonal graph and the open circuit judging rule.

As an optional implementation manner of the embodiment of the present application, the pre-stored abnormality determination rule includes: a short circuit determination rule, the short circuit determination rule comprising: if the control power supply outputs a first current, and a lamp bead with non-zero luminous brightness exists in an image corresponding to the display unit, determining that the lamp bead with non-zero luminous brightness has a short circuit;

acquiring a fourth image corresponding to the display unit to be tested when a control power supply outputs a first current, wherein the first current is used for controlling the luminous brightness of each lamp bead in the display unit to be tested to be zero;

and determining whether the display unit to be tested has a short circuit or not according to the fourth image and the short circuit judging rule.

As an optional implementation manner of this embodiment of the present application, if the display unit to be tested does not have any hardware circuit abnormality, such as power supply abnormality, tin connection, integrated circuit abnormality, pin abnormality, open circuit and short circuit, it is determined that the abnormal lamp point in the display unit to be tested is a lamp bead abnormality.

As an optional implementation manner of the embodiment of the present application, the method further includes:

the method comprises the steps of obtaining a monitoring result of a state monitoring card, wherein the state monitoring card is connected with a display unit to be tested and a display control device for controlling the display unit to be tested and is used for monitoring whether a hardware circuit of the display unit to be tested is abnormal or not;

and determining whether the hardware circuit abnormality exists in the display unit to be detected according to the lighting image, a prestored hardware abnormality judgment rule and the monitoring result.

In a second aspect, an embodiment of the present application provides a display unit hardware circuit abnormality detection device, including:

the acquisition module is used for acquiring a lighting image when at least part of the lamp points in the display unit to be detected are lighted;

the determining module is configured to determine whether the display unit to be tested has a hardware circuit abnormality according to the lighting image and a pre-stored hardware abnormality determination rule, where the pre-stored abnormality determination rule includes: one or more of a power supply abnormality determination rule, a tin connection determination rule, an integrated circuit abnormality determination rule, a pin abnormality determination rule, an open circuit determination rule, and a short circuit determination rule.

In a third aspect, an embodiment of the present application provides an electronic device, including: a memory and a processor, the memory for storing a computer program; the processor is configured to perform the method of the first aspect or any implementation of the first aspect when the computer program is invoked.

In a fourth aspect, embodiments of the present application provide a detection apparatus, including:

the display control device is used for controlling the display unit to be detected to be lightened;

the acquisition equipment is used for acquiring the display unit to be detected;

an analysis device for performing the method of the first aspect or any implementation of the first aspect.

In a fifth aspect, embodiments of the present application provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect or any implementation of the first aspect.

In a sixth aspect, embodiments of the present application provide a computer program product for, when run on an electronic device, causing the electronic device to perform the method of any one of the first aspects.

According to the display unit hardware circuit abnormality detection scheme provided by the embodiment of the application, a lighting image when at least part of lamps in a display unit to be detected are lighted is obtained, whether the display unit to be detected is abnormal in hardware circuit or not is determined according to the lighting image and a prestored hardware abnormality judgment rule, wherein the prestored abnormality judgment rule comprises the following steps: one or more of a power supply abnormality determination rule, a tin connection determination rule, an integrated circuit abnormality determination rule, a pin abnormality determination rule, an open circuit determination rule, and a short circuit determination rule. In the scheme, only the lighting image of the display unit to be detected is required to be obtained, whether the display unit to be detected has hardware circuit abnormality or not can be detected according to the prestored hardware abnormality judgment rule, and additional electrical measurement equipment is not required, so that the detection cost of the hardware abnormality of the display unit can be reduced; in addition, compare in the mode that uses the electricity measurement equipment to detect every lamp point circuit in the detection display element one by one, do not need to detect every lamp point circuit in the display element in the scheme of this application to can promote detection efficiency.

Drawings

FIG. 1 is a flowchart of a method for detecting an abnormality of a hardware circuit of a display unit according to an embodiment of the present disclosure;

fig. 2 is a flow chart of a method for determining hardware circuit abnormality in a display unit to be tested according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a display unit hardware circuit abnormality detection device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a detection device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application. The terminology used in the description of the embodiments of the application is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

Fig. 1 is a flowchart of a method for detecting abnormality of a hardware circuit of a display unit according to an embodiment of the present application, as shown in fig. 1, the method may include the following steps:

s110, acquiring a lighting image when at least part of the lamp points in the display unit to be tested are lighted.

The display unit to be tested may include a plurality of beads (each bead corresponds to a light spot), and the color of the beads may include three primary colors of red, green and blue, or may include other colors.

The lighting image may be an image when one or several color beads in the display unit to be tested are lighted, may be a diagonal line chart when two beads in the display unit to be tested are powered at each interval, may be an image when a control power supply of the display unit to be tested outputs a specified current, or the like, and this embodiment is not particularly limited.

S120, determining whether the display unit to be tested has hardware circuit abnormality or not according to the lightened image and a prestored hardware abnormality judgment rule.

The hardware circuit anomalies in the display unit may include: abnormal power supply, abnormal tin connection, abnormal integrated circuit, abnormal pins, open circuit, short circuit and the like. The corresponding pre-stored anomaly determination rules may include: one or more of a power supply abnormality determination rule, a tin connection determination rule, an integrated circuit abnormality determination rule, a pin abnormality determination rule, an open circuit determination rule, and a short circuit determination rule, as well as other hardware determination rules.

Fig. 2 is a flow chart of a method for determining hardware circuit abnormality in a display unit to be tested according to an embodiment of the present application, as shown in fig. 2, the flow may include:

s121, determining whether the display unit to be tested has power supply abnormality.

The abnormal power supply can cause the abnormal lamp beads controlled by the power supply in the display unit to be tested.

The power abnormality determination rule may include: and if the difference between the unpowered image of the display unit and the powered image of the display unit is smaller than a first threshold value, determining that the control power supply of the display unit is abnormal.

The power supply image may be an image when a lamp bead of one color or several colors in the display unit is supplied with power. The differences of the unpowered image and the powered image may be a luminance difference, a chromaticity difference, a luminance-chromaticity difference, and the like, which is not particularly limited in this embodiment. The first threshold may be a fixed value or may be adjusted according to different display units to be tested.

In the display unit to be tested, the lamp beads of each color can be controlled by one power supply, aiming at the situation, a first image of the display unit to be tested when power is not supplied can be firstly obtained, then a second image of the display unit to be tested when the lamp beads of the first color (red, blue and green) are supplied is obtained (at this time, the power supply can be started when the lamp beads of any color are supplied with power due to the fact that only one power supply is provided), and then whether the display unit to be tested has power supply abnormality is determined according to the first image, the second image and the power supply abnormality judgment rule.

Specifically, the difference between the first image and the second image can be compared, if the difference between the first image and the second image is smaller than a first threshold value, the lamp beads in the second image are not lightened, namely, the display unit to be tested has abnormal power supply; if the difference between the first image and the second image is greater than or equal to a first threshold value, the lamp beads in the second image are lightened, namely the display unit to be tested is free from power supply abnormality.

The display unit to be tested can also comprise two power supplies, one power supply controls the lamp beads with one color, the other power supply controls the lamp beads with other colors, and aiming at the situation, a first image of the display unit to be tested when the power is not supplied can be acquired, and then a second image of the display unit to be tested when the first color lamp beads are supplied and a third image of the display unit to be tested when other lamp beads except the first color lamp beads are supplied are acquired.

For example, in the display unit to be tested, the power supply a controls the red light beads, the power supply B controls the green light beads and the blue light beads, and then a second image when the red light beads are powered and a third image when the blue light beads and the green light beads are powered can be obtained.

Then, according to the first image, the second image and the power supply abnormality judgment rule, determining whether a control power supply of a first color lamp bead in the display unit to be tested has power supply abnormality or not; and determining whether the control power supply of other lamp beads except the first color lamp bead in the display unit to be detected is abnormal or not according to the first image, the third image and the power supply abnormality judgment rule.

Specifically, if the difference between the first image and the second image is smaller than the first threshold, it indicates that the red lamp bead is not lighted, that is, the power supply a has abnormality; if the difference between the first image and the second image is greater than or equal to a first threshold value, the red lamp bead is lightened, namely the power supply A is not abnormal; if the difference between the first image and the third image is smaller than the first threshold value, the blue lamp bead and the green lamp bead are not lightened, namely the power supply B is abnormal; if the difference between the first image and the third image is greater than or equal to the first threshold, the blue lamp bead and the green lamp bead are lightened, namely, the power supply B is not abnormal.

The display unit to be tested can also comprise more than two power supplies, each power supply controls the lamp beads with one color, and aiming at the situation, a first image of the display unit to be tested when the power is not supplied can be acquired firstly, and images of the display unit to be tested when the lamp beads with different colors are supplied with the power are acquired respectively.

For example, in the display unit to be tested, the power supply a controls the red light bulb, the power supply B controls the green light bulb, and the power supply C controls the blue light bulb, so that a first image of the display unit to be tested when not powered can be obtained first, and then the image a of the red light bulb when powered, the image B of the green light bulb when powered, and the image C of the blue light bulb when powered are obtained.

Then, according to the first image, the image A and a power supply abnormality judgment rule, determining whether a power supply abnormality exists in a control power supply of the red lamp bead in the display unit to be detected; determining whether a power supply abnormality exists in a control power supply of the green lamp bead in the display unit to be detected according to the first image, the image B and the power supply abnormality judging rule; and determining whether the control power supply of the blue lamp bead in the display unit to be tested is abnormal or not according to the first image, the image C and the power supply abnormality judgment rule.

Specifically, if the difference between the first image and the image a is smaller than the first threshold, it indicates that the red light bead is not lighted, that is, the power supply a has an abnormality; if the difference between the first image and the image A is larger than or equal to a first threshold value, the red lamp bead is lightened, namely the power supply A is not abnormal; if the difference between the first image and the image B is smaller than a first threshold value, the green lamp beads are not lightened, namely the power supply B is abnormal; if the difference between the first image and the image B is greater than or equal to a first threshold value, the green lamp bead is lightened, namely the power supply B is not abnormal; if the difference between the first image and the image C is smaller than a first threshold value, the blue lamp bead is not lightened, namely, the power supply C is abnormal; if the difference between the first image and the image C is greater than or equal to the first threshold, the blue lamp bead is lightened, namely, the power supply C is not abnormal.

Because a large number of abnormal lamp beads appear in the display unit to be tested due to abnormal power supply, abnormal phenomena corresponding to various other hardware circuit abnormalities appear in the lighting image of the display unit to be tested, therefore, whether the power supply is abnormal in the display unit to be tested can be determined before whether other hardware circuit abnormalities exist in the display unit to be tested is determined, so that the hardware circuit abnormalities in the display unit to be tested can be detected more accurately.

In some embodiments of the present application, it may also be determined whether other hardware circuit anomalies exist in the display unit to be tested first, and then whether a power supply anomaly exists in the display unit to be tested.

S122, determining whether the display unit to be tested has tin connection.

The tin-connected means that two or more lamp points are welded together.

The tin connection determination rule may include: if continuous abnormal lamp beads exist in the image when at least part of the lamp points in the display unit are lighted, the continuous abnormal lamp beads comprise dead lamps and dark lamps, the continuous number of the continuous abnormal lamp beads is larger than a continuous number threshold value, and the dead lamps in the continuous abnormal lamp beads are determined to be tin-connected lamps.

The dead lamp is the lamp bead which is not lighted when the lamp point is electrified, the dark lamp is the lamp bead which has darker brightness when the lamp point is electrified, and the continuous number threshold value can be adjusted according to the arrangement condition of the lamp beads in the display unit, for example, the continuous number threshold value can be equal to the number of the lamp beads controlled by pins in the display unit.

Specifically, whether the display unit to be tested has tin connection can be determined according to the lighting image of the display unit to be tested and the tin connection determination rule.

For example, if the threshold value of the continuous number is 5, and 7 continuous abnormal lamp beads exist in the lighting image of the display unit to be tested, and the 7 abnormal lamp beads include 6 dark lamps and one dead lamp, the dead lamp is the tin connection lamp, and the 6 dark lamps are the lamp beads affected by the tin connection lamp.

S123, determining whether the display unit to be tested has an integrated circuit abnormality.

The display unit may include a plurality of integrated circuits, each of which may control a plurality of the lamp beads. If one integrated circuit is abnormal, the lamp beads controlled by the integrated circuit are also all abnormal.

The integrated circuit anomaly determination rules may include: if it is determined that the lamp beads controlled by the same integrated circuit are abnormal according to the image when at least part of the lamp points in the display unit are lighted, and the abnormality of each lamp bead is the same, determining that the integrated circuit is an abnormal integrated circuit.

Specifically, whether the display unit to be tested has an integrated circuit abnormality or not may be determined according to the lighting image of the display unit to be tested and the integrated circuit abnormality determination rule.

For example, the abnormal condition of the beads controlled by each integrated circuit may be determined according to the preset integrated circuit map and the positions of the beads with different Chang Deng in the lighting image, and if the beads controlled by the integrated circuits 1 in each integrated circuit are all abnormal beads and the abnormal conditions of the beads with different Chang Deng are the same (for example, all dead lamps, all dark lamps, etc.), it is determined that the integrated circuits 1 are abnormal. The integrated circuit map may be a schematic circuit diagram of the display unit to be tested, or may be a schematic diagram of the map between the integrated circuit and the controlled lamp beads drawn by software.

S124, determining whether the display unit to be tested has abnormal pins.

The integrated circuit may include a plurality of pins, each pin may control a plurality of light bulbs. If one pin is abnormal, all the lamp beads controlled by the pin are abnormal.

The pin anomaly determination rule may include: if it is determined that the lamp beads controlled by the same pin are abnormal according to the image when at least part of the lamp points of the display unit are lighted, the abnormality of each lamp bead is the same, and the integrated circuit corresponding to the pin is not abnormal, the pin is determined to be an abnormal pin.

Specifically, whether the display unit to be tested has the pin abnormality or not may be determined according to the lighting image of the display unit to be tested and the pin abnormality determination rule.

For example, according to the preset integrated circuit map and the positions of the Chang Deng beads in the lighting image, the abnormal condition of the lamp beads controlled by each pin can be determined, if the lamp beads controlled by the pin 1 in each pin are all abnormal lamp beads, the abnormal condition of each lamp bead is the same (for example, all the lamp beads are dead lamps, all the lamp beads are dark lamps, etc.), and the integrated circuit corresponding to the pin 1 is not abnormal, the abnormal condition of the pin 1 is determined.

S125, determining whether an open circuit exists in the display unit to be tested.

The open circuit decision rule may include: if a dead lamp exists in an image when two lamp beads in the display unit are powered at intervals, and after the lamp beads adjacent to the dead lamp are powered independently, other lamp beads adjacent to the lamp beads are not powered, and then the dead lamp is determined to have an open circuit.

Specifically, whether the hardware circuit abnormality exists in the display unit to be tested can be determined according to the diagonal graph of the lamp beads in the display unit to be tested when two lamp beads are powered at each interval and a prestored hardware abnormality judgment rule.

For example, if there is a dead lamp a in the diagonal graph, the beads adjacent to the dead lamp a are a bead B, a bead C, a bead D, and a bead E. If there are no other lighting beads in the adjacent beads to the beads B, C, D and E when the power is supplied to the beads B, C, D and E separately, then there is an open circuit in the dead lamp a.

S126, determining whether the display unit to be tested has a short circuit.

If the short-circuited lamp beads exist in the display unit to be tested, the current of the lamp beads passing through the short circuit is far higher than that of the lamp beads passing through the normal lamp beads.

The short circuit determination rule may include: if the control power supply outputs the first current, the lamp beads with the non-zero luminous brightness exist in the image corresponding to the display unit, and the lamp beads with the non-zero luminous brightness are determined to have short circuits.

Specifically, whether the display unit to be tested has a short circuit or not may be determined according to the fourth image and the short circuit determination rule corresponding to the display unit to be tested when the control power supply of the display unit to be tested outputs the first current. The first current is used for controlling the luminous brightness of each lamp bead in the display unit to be tested to be zero.

When the control power supply of the display unit to be tested outputs the first current, the normal lamp beads in the display unit to be tested can emit black light, and the current of the lamp beads which are in short circuit is far higher than that of the lamp beads which are in normal circuit, so that the lamp beads which are in short circuit emit light with corresponding colors, and obvious distinction is formed between the lamp beads which emit black light and the normal lamp beads which emit black light.

In some embodiments of the present application, the power supply may be controlled to output other currents, and then the brightness of each bead in the display unit to be tested is detected, and the bead with higher brightness is determined as the short-circuit bead.

In addition, after the power supply abnormality detection, the tin connection detection, the integrated circuit abnormality detection, the pin abnormality detection, the open circuit detection and the short circuit detection are performed on the display unit to be tested, if any one of the hardware circuit abnormality of the power supply abnormality, the tin connection, the integrated circuit abnormality, the pin abnormality, the open circuit and the short circuit does not exist in the display unit to be tested, the hardware circuit abnormality corresponding to the abnormal lamp point in the display unit to be tested can be determined to be the lamp bead abnormality; if the abnormality of a certain lamp point in the display unit to be tested is not caused by any one of the power supply abnormality, tin connection, integrated circuit abnormality, pin abnormality, open circuit and short circuit, the hardware circuit abnormality corresponding to the lamp point can be judged to be the lamp bead abnormality, so that the abnormal lamp bead causing the lamp point abnormality can be repaired.

In some embodiments of the present application, the hardware circuit abnormality of the to-be-detected display unit may be detected in a manner of combining visual detection and electrical detection, so that the hardware circuit abnormality in the to-be-detected display unit may be detected more comprehensively, and the detection result may be more accurate.

Specifically, the monitoring result of the state monitoring card can be obtained first, and then whether the hardware circuit abnormality exists in the display unit to be tested or not is determined according to the lighting image, the prestored hardware abnormality judgment rule and the monitoring result.

The state monitoring card can monitor the temperature, humidity, smoke and fan rotating speed of the box body in the loading range, and can monitor the flat cable, the open/short circuit of the lamp beads, the output voltage of the switching power supply and the like in the loading range.

Those skilled in the art will appreciate that the above embodiments are exemplary and not intended to limit the present application. The order of execution of one or more of the above steps may be modified, if possible, or may be combined selectively to yield one or more other embodiments. Those skilled in the art can select any combination from the above steps according to the need, and all the steps do not depart from the spirit of the scheme of the present application.

Based on the same inventive concept, as an implementation of the above method, the embodiment of the present application provides a device for detecting abnormality of a hardware circuit of a display unit, where the embodiment of the device corresponds to the embodiment of the foregoing method, for convenience of reading, the embodiment of the present application does not describe details in the embodiment of the foregoing method one by one, but it should be clear that the device in the embodiment can correspondingly implement all the details in the embodiment of the foregoing method.

Fig. 3 is a schematic structural diagram of a display unit hardware circuit abnormality detection device provided in an embodiment of the present application, where, as shown in fig. 3, the device provided in this embodiment includes:

an acquisition module 11, configured to acquire a lighting image when at least part of the lamps in the display unit to be tested are lighted;

a determining module 12, configured to determine whether the display unit to be tested has a hardware circuit abnormality according to the lighting image and a pre-stored hardware abnormality determination rule, where the pre-stored abnormality determination rule includes: one or more of a power supply abnormality determination rule, a tin connection determination rule, an integrated circuit abnormality determination rule, a pin abnormality determination rule, an open circuit determination rule, and a short circuit determination rule.

As an alternative embodiment, the pre-stored abnormality determination rule includes: a power abnormality determination rule, the power abnormality determination rule comprising: if the difference between the unpowered image of the display unit and the powered image of the display unit is smaller than a first threshold value, determining that the control power supply of the display unit is abnormal;

the acquisition module 11 is further configured to: acquiring a first image of a display unit to be tested when power is not supplied;

the acquiring module 11 is specifically configured to: acquiring a second image of the display unit to be tested when the first color lamp beads are powered;

The determining module 11 is specifically configured to: and determining whether the display unit to be tested has power supply abnormality or not according to the first image, the second image and the power supply abnormality judgment rule.

As an alternative embodiment, the obtaining module 11 is further configured to: acquiring a third image of the display unit to be tested when other lamp beads except the first color lamp bead are powered;

the determining module 11 is specifically configured to: determining whether a power supply abnormality exists in the control power supply of the first color lamp bead in the display unit to be detected according to the first image, the second image and the power supply abnormality judging rule;

As an alternative embodiment, the pre-stored abnormality determination rule includes: and a tin connection judgment rule, wherein the tin connection judgment rule comprises: if continuous abnormal lamp beads exist in the image when at least part of the lamp points in the display unit are lighted, the continuous abnormal lamp beads comprise dead lamps and dark lamps, and the continuous number of the continuous abnormal lamp beads is larger than a continuous number threshold value, determining that the dead lamps in the continuous abnormal lamp beads are tin-connected lamps;

The determining module 11 is specifically configured to: and determining whether the display unit to be tested has tin connection according to the lighting image and the tin connection judging rule.

As an alternative embodiment, the pre-stored abnormality determination rule includes: an integrated circuit anomaly determination rule, the integrated circuit anomaly determination rule comprising: if the lamp beads controlled by the same integrated circuit are determined to have abnormality according to the image when at least part of the lamp points in the display unit are lighted, and the abnormality of each lamp bead is the same, determining that the integrated circuit is an abnormal integrated circuit;

the determining module 11 is specifically configured to: and determining whether the display unit to be tested has an integrated circuit abnormality or not according to the lighting image and the integrated circuit abnormality judging rule.

As an alternative embodiment, the pre-stored abnormality determination rule includes: a pin anomaly determination rule, the pin anomaly determination rule comprising: if the lamp beads controlled by the same pin are determined to have abnormality according to the image when at least part of the lamp points of the display unit are lighted, the abnormality of each lamp bead is the same, and the integrated circuit corresponding to the pin is not abnormal, determining that the pin is an abnormal pin;

The determining module 11 is specifically configured to: and determining whether the display unit to be tested has abnormal pins or not according to the lighting image and the pin abnormality judging rule.

As an alternative embodiment, the pre-stored abnormality determination rule includes: an open circuit decision rule, the open circuit decision rule comprising: if dead lamps exist in the images when two lamp beads in the display unit are powered at intervals, and after the adjacent lamp beads are powered independently, other lamp beads are not powered in the adjacent lamp beads, and then the dead lamps are determined to have open circuits;

the acquiring module 11 is specifically configured to: collecting a bevel graph of lamp beads in the display unit to be tested when two lamp beads are powered at intervals;

the determining module 11 is specifically configured to: and determining whether the display unit to be tested has an open circuit or not according to the diagonal graph and the open circuit judging rule.

As an alternative embodiment, the pre-stored abnormality determination rule includes: a short circuit determination rule, the short circuit determination rule comprising: if the control power supply outputs a first current, and a lamp bead with non-zero luminous brightness exists in an image corresponding to the display unit, determining that the lamp bead with non-zero luminous brightness has a short circuit;

The acquiring module 11 is specifically configured to: acquiring a fourth image corresponding to the display unit to be tested when a control power supply outputs a first current, wherein the first current is used for controlling the luminous brightness of each lamp bead in the display unit to be tested to be zero;

the determining module 11 is specifically configured to: and determining whether the display unit to be tested has a short circuit or not according to the fourth image and the short circuit judging rule.

As an alternative embodiment, the determining module 11 is further configured to: if the display unit to be tested is free of any hardware circuit abnormality of power supply abnormality, tin connection, integrated circuit abnormality, pin abnormality, open circuit and short circuit, determining that the abnormal lamp point in the display unit to be tested is abnormal lamp bead.

As an alternative embodiment, the obtaining module 11 is further configured to:

the determining module 11 is further configured to:

The display unit hardware circuit abnormality detection device provided in this embodiment may execute the above method embodiment, and its implementation principle and technical effects are similar, and will not be described here again.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

Based on the same inventive concept, the embodiment of the application also provides electronic equipment. Fig. 4 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and as shown in fig. 4, the electronic device provided in the embodiment may include: a memory 210 and a processor 220, the memory 210 for storing a computer program; the processor 220 is configured to perform the method described in the method embodiments above when the computer program is invoked.

The electronic device provided in this embodiment may execute the above method embodiment, and its implementation principle is similar to that of the technical effect, and will not be described herein again.

Based on the same inventive concept, the embodiment of the application also provides a detection device. Fig. 5 is a schematic structural diagram of a detection device provided in an embodiment of the present application, and as shown in fig. 5, the detection device provided in the embodiment may include:

and the analysis equipment is used for executing the method described in the method embodiment.

The detection device provided in this embodiment may perform the above method embodiment, and its implementation principle is similar to that of the technical effect, and will not be described herein.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method described in the above method embodiment.

Embodiments of the present application also provide a computer program product which, when run on an electronic device, causes the electronic device to execute the method described in the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted across a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, hard Disk, or magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by a computer program to instruct related hardware, the program may be stored in a computer readable storage medium, and the program may include the above-described method embodiments when executed. And the aforementioned storage medium may include: ROM or random access memory RAM, magnetic or optical disk, etc.

The naming or numbering of the steps in the present application does not mean that the steps in the method flow must be executed according to the time/logic sequence indicated by the naming or numbering, and the execution sequence of the steps in the flow that are named or numbered may be changed according to the technical purpose to be achieved, so long as the same or similar technical effects can be achieved.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other manners. For example, the apparatus/device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In the description of the present application, unless otherwise indicated, "/" means that the associated object is an "or" relationship, e.g., a/B may represent a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.

Also, in the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of the following" or similar expressions thereof, means any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein.

References to "one embodiment" or "some embodiments" or the like described in the specification of the present application mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The display unit hardware circuit abnormality detection method is characterized by comprising the following steps:

2. The method of claim 1, wherein the pre-stored anomaly determination rules comprise: a power abnormality determination rule, the power abnormality determination rule comprising: if the difference between the unpowered image of the display unit and the powered image of the display unit is smaller than a first threshold value, determining that the control power supply of the display unit is abnormal;

The method further comprises the steps of:

3. The method of claim 2, wherein the acquiring the illumination image when at least part of the lamps in the display unit to be measured are illuminated, further comprises: acquiring a third image of the display unit to be tested when other lamp beads except the first color lamp bead are powered;

4. The method of claim 1, wherein the pre-stored anomaly determination rules comprise: and a tin connection judgment rule, wherein the tin connection judgment rule comprises: if continuous abnormal lamp beads exist in the image when at least part of the lamp points in the display unit are lighted, the continuous abnormal lamp beads comprise dead lamps and dark lamps, and the continuous number of the continuous abnormal lamp beads is larger than a continuous number threshold value, determining that the dead lamps in the continuous abnormal lamp beads are tin-connected lamps;

5. The method of claim 1, wherein the pre-stored anomaly determination rules comprise: an integrated circuit anomaly determination rule, the integrated circuit anomaly determination rule comprising: if the lamp beads controlled by the same integrated circuit are determined to have abnormality according to the image when at least part of the lamp points in the display unit are lighted, and the abnormality of each lamp bead is the same, determining that the integrated circuit is an abnormal integrated circuit;

6. The method of claim 5, wherein the pre-stored anomaly determination rules comprise: a pin anomaly determination rule, the pin anomaly determination rule comprising: if the lamp beads controlled by the same pin are determined to have abnormality according to the image when at least part of the lamp points of the display unit are lighted, the abnormality of each lamp bead is the same, and the integrated circuit corresponding to the pin is not abnormal, determining that the pin is an abnormal pin;

7. The method of claim 1, wherein the pre-stored anomaly determination rules comprise: an open circuit decision rule, the open circuit decision rule comprising: if dead lamps exist in the images when two lamp beads in the display unit are powered at intervals, and after the adjacent lamp beads are powered independently, other lamp beads are not powered in the adjacent lamp beads, and then the dead lamps are determined to have open circuits;

8. The method of claim 1, wherein the pre-stored anomaly determination rules comprise: a short circuit determination rule, the short circuit determination rule comprising: if the control power supply outputs a first current, and a lamp bead with non-zero luminous brightness exists in an image corresponding to the display unit, determining that the lamp bead with non-zero luminous brightness has a short circuit;

9. The method of any one of claims 1-8, wherein if the display unit to be tested does not have any one of a power supply abnormality, a tin connection, an integrated circuit abnormality, a pin abnormality, an open circuit, and a short circuit hardware circuit abnormality, determining that an abnormal lamp point in the display unit to be tested is a lamp bead abnormality.

10. The method according to any one of claims 1-8, further comprising:

11. An electronic device, comprising: a memory and a processor, the memory for storing a computer program; the processor is configured to perform the method of any of claims 1-10 when the computer program is invoked.

12. A detection apparatus, characterized by comprising:

analysis device for performing the method according to any of claims 1-10.