CN114675155A - LED display screen detection method, device and equipment - Google Patents

LED display screen detection method, device and equipment Download PDF

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Publication number
CN114675155A
CN114675155A CN202210269136.7A CN202210269136A CN114675155A CN 114675155 A CN114675155 A CN 114675155A CN 202210269136 A CN202210269136 A CN 202210269136A CN 114675155 A CN114675155 A CN 114675155A
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led
microchip
instruction
target
lighting
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吴国祯
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Xiamen Lingyang Huaxin Technology Co ltd
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Xiamen Lingyang Huaxin Technology Co ltd
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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
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2632—Circuits therefor for testing diodes
    • G01R31/2635—Testing light-emitting diodes, laser diodes or photodiodes
    • 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
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
    • G01R31/2836—Fault-finding or characterising
    • 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
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Debugging And Monitoring (AREA)

Abstract

The invention discloses a method, a device and equipment for detecting an LED display screen and a computer readable storage medium, wherein the method comprises the steps of sending a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along an address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead; collecting LED lighting information in a first preset time period after the lighting instruction is sent; and determining LED fault information according to the LED lighting information. The invention utilizes the characteristic that the microchip can actively generate and send signals, and utilizes the characteristic that the target microchip sends execution instructions to other microchips, one action can test the connection among three structures, thus greatly improving the detection efficiency and the detection speed, simultaneously improving the degree of freedom of detection and realizing complex target detection through simple customization.

Description

LED display screen detection method, device and equipment
Technical Field
The invention relates to the field of LED fault detection, in particular to a method, a device and equipment for detecting an LED display screen and a computer readable storage medium.
Background
With the electronic equipment getting deeper and deeper into the aspects of people's lives, the demand of the market for the LED display screen as a display component with good performance and low power consumption is rapidly increased year by year, and for manufacturers, the biggest problem restricting the production efficiency of the LED display screen is the factory quality detection of the LED display screen.
The driving connection mode of the current LED display screen can be roughly divided into an array type and a daisy chain type, wherein the array type LED display screen has the characteristics of high contrast, high brightness, high driving efficiency, low power consumption and the like because an internal microchip can drive one or more LED diodes simultaneously, but is relatively complex in detection, a tester must send data through countless times and manually record and test the data, so that the efficiency, quality and reliability of the test are all to be improved, and the daisy chain type is more complex and time-consuming in detection.
Therefore, how to find an efficient LED display screen detection method to improve the production efficiency of the LED display screen is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a method, a device and equipment for detecting an LED display screen and a computer readable storage medium, which aim to solve the problem that the detection efficiency of the LED display screen is low and the production efficiency is reduced in the prior art.
In order to solve the technical problem, the invention provides a method for detecting an LED display screen, which comprises the following steps:
transmitting a transfer driving instruction to the target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along an address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead;
collecting LED lighting information in a first preset time period after the lighting instruction is sent;
and determining LED fault information according to the LED lighting information.
Optionally, in the LED display screen detection method, the relay driving command is sent to the target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send lighting instructions to corresponding LED lamp beads, and the lighting instructions comprise:
sending a sequential drive command to all microchips on the target daisy chain through the data line; the sequential driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; the primary starting instruction enables the execution microchip to send a primary lighting instruction to the corresponding LED lamp bead;
Correspondingly, the collecting the LED lighting information within the first preset time period after the lighting instruction is sent includes:
acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent;
accordingly, the determining of the LED failure information according to the LED lighting information includes:
and determining LED fault information according to the LED primary lighting information.
Optionally, in the method for detecting an LED display screen, after acquiring the primary lighting information of the LED, the method further includes:
sending a reverse driving command to all microchips on the target daisy chain through the data line; the reverse driving instruction enables the received microchip to send a secondary starting instruction to an adjacent execution microchip along a second direction of the target daisy chain; the secondary starting instruction enables the execution microchip to send a secondary lighting instruction to the corresponding LED lamp bead;
collecting LED secondary lighting information in a first preset time period after the secondary lighting instruction is sent;
correspondingly, the determining the LED fault information according to the LED primary lighting information includes:
and determining LED fault information according to the LED primary lighting information and the LED secondary lighting information.
Optionally, in the LED display screen detection method, the method further includes:
Sending an active feedback instruction to the target microchip; the active feedback instruction causes the target microchip to return a reporting feedback instruction via the data line or the address line; the report feedback instruction comprises identification information of a corresponding target microchip;
receiving the report feedback instruction;
accordingly, the determining of the LED failure information according to the LED lighting information includes:
and determining LED fault information according to the LED lighting information and the report feedback instruction.
Optionally, in the LED display screen detection method, the method further includes:
sending a drive instruction to the target microchip; the driving instruction enables the target microchip to send a target lighting instruction to the corresponding LED lamp bead;
acquiring target LED lighting information in a first preset time period after the target lighting instruction is sent;
accordingly, the determining of the LED failure information according to the LED lighting information includes:
and determining LED fault information according to the LED lighting information and the target LED lighting information.
An LED display screen detection device, comprising:
the transmitting module is used for transmitting a transfer driving instruction to the target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead;
The acquisition module is used for acquiring LED lighting information in a first preset time period after the lighting instruction is sent;
and the determining module is used for determining LED fault information according to the LED lighting information.
Optionally, in the LED display screen detecting apparatus, the sending module includes:
the forward delay sending unit is used for sending forward delay driving instructions to all the microchips on the target daisy chain through the data lines; the sequential driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; the primary starting instruction enables the execution microchip to send a primary lighting instruction to the corresponding LED lamp bead;
accordingly, the acquisition module comprises:
the primary acquisition unit is used for acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent;
accordingly, the determining means comprises:
and the primary determining unit is used for determining LED fault information according to the LED primary lighting information.
Optionally, in the LED display screen detecting device, the sending module further includes:
the system comprises a reverse transmitting unit, a reverse driving unit and a reverse driving unit, wherein the reverse transmitting unit is used for transmitting a reverse driving instruction to all microchips on a target daisy chain through a data line; the reverse driving instruction enables the received microchip to send a secondary starting instruction to an adjacent execution microchip along a second direction of the target daisy chain; the secondary starting instruction enables the execution microchip to send a secondary lighting instruction to the corresponding LED lamp bead;
The secondary acquisition unit is used for acquiring LED secondary lighting information in a first preset time period after the secondary lighting instruction is sent;
accordingly, the determining module comprises:
and the secondary determining unit is used for determining LED fault information according to the LED primary lighting information and the LED secondary lighting information.
An LED display screen detection device, comprising:
a memory for storing a computer program;
and the processor is used for realizing the steps of the LED display screen detection method when the computer program is executed.
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the LED display screen detection method according to any one of the preceding claims.
The LED display screen detection method provided by the invention comprises the steps of sending a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead; collecting LED lighting information in a first preset time period after the lighting instruction is sent; and determining LED fault information according to the LED lighting information.
The invention utilizes the characteristic that the microchip can actively generate and send signals, utilizes the characteristic that the target microchip sends an execution instruction to other microchips (namely, the execution microchip), and lightens the corresponding LED after receiving the execution instruction, in the process, a data line from a control end to the target microchip, an address line from the target bit chip to the execution microchip and the connection between the execution microchip and an LED lamp bead can be detected, one action can detect the connection between the three structures, the detection efficiency can be greatly improved, the detection speed can be improved, meanwhile, the detection freedom degree can be improved, and the complex target detection can be realized through simple self-defining. The invention also provides a device and equipment for detecting the LED display screen and a computer readable storage medium with the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described 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 that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of an embodiment of a method for detecting an LED display screen according to the present invention;
FIG. 2 is a schematic flow chart diagram illustrating another embodiment of a method for detecting an LED display screen according to the present invention;
FIG. 3 is a schematic flow chart of another embodiment of the LED display screen detection method provided by the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of an LED display screen detection apparatus provided in the present invention;
FIG. 5 is a schematic diagram of signal transmission of an embodiment of the LED display screen detection method provided by the present invention;
fig. 6 is a schematic signal transmission diagram of another specific embodiment of the LED display screen detection method provided by the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a method for detecting an LED display screen, wherein the flow diagram of one specific embodiment is shown in FIG. 1, which is called as the first specific embodiment and comprises the following steps:
s101: transmitting a transfer driving instruction to the target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; and the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead.
In other words, this step sends the transfer driving command to microchip a (target bit chip), microchip a sends the start command to microchip B after receiving the transfer driving command (microchips on the same daisy chain are usually connected in series by address lines), and microchip B sends the lighting command to the corresponding LED lamp bead after receiving the start command.
S102: and collecting LED lighting information in a first preset time period after the lighting instruction is sent.
The LED lighting information in this step includes the corresponding LED lamp bead identity label and the information whether the LED lamp bead is normally luminous.
S103: and determining LED fault information according to the LED lighting information.
If the connections among the components in the step S101 are normal, the LED lamp beads are normally lit, and if there is a problem in the connection among the components in the previous step, the LED lamp beads are not lit.
Can carry out a lot of solitary transfer drive instruction and send, and then progressively reduce the scope that the trouble took place, carry out progressively locking of trouble position, also can assign different transfer drive instruction to different target microchips simultaneously for the single time, carry out the locking of trouble position, can do corresponding adjustment according to actual conditions.
As a preferred embodiment, the method further comprises:
a1: sending an active feedback instruction to the target microchip; the active feedback instruction causes the target microchip to return a reporting feedback instruction via the data line or the address line; the reporting feedback instructions include identification information of the corresponding target microchip.
In this step, the control end sends an active feedback instruction to the target bit chip, that is, the target microchip sends information to the control end through the data line or the address line (which may be arranged by the inspector as appropriate).
A2: and receiving the report feedback instruction.
Of course, if the connection between the components in the step a1 is faulty, the report feedback instruction will not be received, and at this time, it may be determined that the link is faulty, and the fault may be further located by combining with the other detection methods in the foregoing.
Accordingly, the determining of the LED failure information according to the LED lighting information includes:
a3: and determining LED fault information according to the LED lighting information and the report feedback instruction.
In this embodiment, the target microchip is separately enabled to send the report feedback instruction to the control terminal, so that whether the data line connection or the address line connection between the target microchip and the control terminal is unblocked can be separately detected, and by combining with other detection means in the foregoing, a site with a problem can be quickly located, and the detection efficiency is further improved.
The embodiment is applicable to the array type LED panel and is also applicable to the daisy chain type LED panel.
As another preferred embodiment, the method further comprises:
b1: sending a drive instruction to the target microchip; and the driving instruction enables the target microchip to send a target lighting instruction to the corresponding LED lamp bead.
B2: and acquiring target LED lighting information in a first preset time period after the target lighting instruction is sent.
Accordingly, the determining of the LED failure information according to the LED lighting information includes:
b3: and determining LED fault information according to the LED lighting information and the target LED lighting information.
In this embodiment, the control end is used to drive the LED lamp beads corresponding to the electric quantity of the target microchip, and the target microchip is usually all microchips of the whole LED panel, that is, if the LED panel has no fault, the LED lamp beads on the whole panel are fully lit, so as to complete the detection quickly. The embodiment is applicable to the array type LED panel and is also applicable to the daisy chain type LED panel.
The LED display screen detection method provided by the invention comprises the steps of sending a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead; collecting LED lighting information in a first preset time period after the lighting instruction is sent; and determining LED fault information according to the LED lighting information. The invention utilizes the characteristic that the microchip can actively generate and send signals, utilizes the characteristic that the target microchip sends an execution instruction to other microchips (namely, the execution microchip), and lightens the corresponding LED after receiving the execution instruction, in the process, a data line from a control end to the target microchip, an address line from the target bit chip to the execution microchip and the connection between the execution microchip and an LED lamp bead can be detected, one action can detect the connection between the three structures, the detection efficiency can be greatly improved, the detection speed can be improved, meanwhile, the detection freedom degree can be improved, and the complex target detection can be realized through simple self-defining.
On the basis of the first specific embodiment, the detection method is further limited to obtain a second specific embodiment, a schematic flow diagram of which is shown in fig. 2, and includes:
s201: sending a forward-delay driving command to all microchips on the target daisy chain through a data line; the forward-delay driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; and the one-time starting instruction enables the execution microchip to send a one-time lighting instruction to the corresponding LED lamp bead.
In this step, the command is sent to all the microchips on the single daisy chain at the same time, in other words, all the microchips on the target daisy chain are the target microchips, and the last microchip in the first direction can send the one-time start command to the first microchip.
S202: and acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent.
S203: and determining LED fault information according to the LED primary lighting information.
In this embodiment, the forward driving command is issued to all the microchips on the single daisy chain at one time, and the forward driving command is a transfer driving command for designating the executing microchip as a microchip adjacent to the microchip on the daisy chain in the first direction. If the LED lamp bead is not lightened, the LED lamp bead and the corresponding execution microchip or the connection between the execution microchip and the corresponding target microchip are directly indicated to have problems, the fault range is quickly narrowed to the two points, and the detection efficiency is further improved. Fig. 5 is a schematic signaling diagram corresponding to the embodiment, in which ADDR _ EN 1, ADDR _ EN 2, etc. represent different daisy chains, and ADDR1, ADDR2, etc. represent addresses of different microchips on a daisy chain, respectively, in combination with fig. 5, and the schematic signaling diagrams corresponding to the other embodiments are the same hereinafter.
On the basis of the second embodiment, the accuracy of the result of the fault detection is further refined to obtain a third embodiment, a schematic flow diagram of which is shown in fig. 3, and includes:
s301: sending a forward-delay driving command to all microchips on the target daisy chain through a data line; the forward-delay driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; and the one-time starting instruction enables the execution microchip to send a one-time lighting instruction to the corresponding LED lamp bead.
S302: and acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent.
S303: sending a reverse driving command to all microchips on the target daisy chain through the data line; the reverse driving instruction enables the received microchip to send a secondary starting instruction to an adjacent execution microchip along a second direction of the target daisy chain; and the secondary starting instruction enables the execution microchip to send a secondary lighting instruction to the corresponding LED lamp bead.
Since the daisy chain is a chain of microchips connected in series, the second direction is opposite to the first direction.
S304: and acquiring LED secondary lighting information in a first preset time period after the secondary lighting instruction is sent.
S305: and determining LED fault information according to the LED primary lighting information and the LED secondary lighting information.
In this embodiment, compared with the second embodiment, after the forward driving command in the first direction is issued and the primary lighting information is accepted, the backward driving command is sent again and the secondary lighting information is accepted, and the fault occurrence range can be further narrowed by combining the two lighting information.
For example, if the first lighting information is used for once, the first lamp bead is found to be not lighted, and the second lamp bead is normally lighted, the first lamp bead may be connected with the corresponding executing microchip B to cause a problem, but the corresponding executing microchip B may also be connected with the corresponding target microchip A to cause a problem, at the moment, the reverse driving instruction is sent in a whole string in reverse, and because the second lamp bead is normally lighted in the previous detection, the problem that the connection between the second microchip C and the second microchip B (which is the target microchip relative to the second microchip C) does not exist is known, so that if the first lamp bead is normally lighted at the moment, the problem that the first lamp bead is not in the connection between the first microchip and the second microchip is determined to be in the connection position of the first microchip A and the second microchip B. In summary, the preferred embodiment can further reduce the fault range, improve the detection efficiency, and further improve the production efficiency of the LED display screen. Fig. 6 is a schematic diagram of signal transmission corresponding to step S303, and a complete signal transmission flow in the present embodiment can be obtained by combining fig. 5.
In the following, the LED display screen detection apparatus provided in the embodiment of the present invention is introduced, and the LED display screen detection apparatus described below and the LED display screen detection method described above may be referred to in a corresponding manner.
Fig. 4 is a block diagram of a structure of an LED display screen detection apparatus according to an embodiment of the present invention, where the LED display screen detection apparatus according to fig. 4 may include:
a sending module 100, configured to send a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead;
the acquisition module 200 is configured to acquire LED lighting information within a first preset time period after the lighting instruction is sent;
a determining module 300, configured to determine LED failure information according to the LED lighting information.
As a preferred embodiment, the sending module 100 includes:
the forward delay sending unit is used for sending forward delay driving instructions to all the microchips on the target daisy chain through the data lines; the sequential driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; the primary starting instruction enables the execution microchip to send a primary lighting instruction to the corresponding LED lamp bead;
Accordingly, the acquisition module comprises:
the primary acquisition unit is used for acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent;
accordingly, the determining means comprises:
and the primary determining unit is used for determining LED fault information according to the LED primary lighting information.
As a preferred embodiment, the sending module 100 further includes:
the system comprises a reverse transmitting unit, a reverse driving unit and a reverse driving unit, wherein the reverse transmitting unit is used for transmitting a reverse driving instruction to all microchips on a target daisy chain through a data line; the reverse driving instruction enables the received microchip to send a secondary starting instruction to an adjacent execution microchip along a second direction of the target daisy chain; the secondary starting instruction enables the execution microchip to send a secondary lighting instruction to the corresponding LED lamp bead;
the secondary acquisition unit is used for acquiring LED secondary lighting information in a first preset time period after the secondary lighting instruction is sent;
accordingly, the determining means comprises:
and the secondary determining unit is used for determining LED fault information according to the primary LED lighting information and the secondary LED lighting information.
As a preferred implementation, the sending module 100 further includes:
The feedback activation unit is used for sending an active feedback instruction to the target microchip; said active feedback instructions cause said target microchip to return reporting feedback instructions over said data lines or said address lines; the report feedback instruction comprises identification information of a corresponding target microchip;
a feedback receiving unit, configured to receive the report feedback instruction;
accordingly, the determining module 300 comprises:
and the feedback determining unit is used for determining LED fault information according to the LED lighting information and the report feedback instruction.
As a preferred implementation, the sending module 100 further includes:
a target driving unit for sending a driving instruction to the target microchip; the driving instruction enables the target microchip to send a target lighting instruction to the corresponding LED lamp bead;
the target LED acquisition unit is used for acquiring target LED lighting information in a first preset time period after the target lighting instruction is sent;
accordingly, the determining module 300 comprises:
and the lighting determining unit is used for determining LED fault information according to the LED lighting information and the target LED lighting information.
The LED display screen detection device provided by the invention comprises a sending module 100, a transmission module and a control module, wherein the sending module is used for sending a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead; the acquisition module 200 is configured to acquire LED lighting information within a first preset time period after the lighting instruction is sent; a determining module 300, configured to determine LED failure information according to the LED lighting information. The invention utilizes the characteristic that the microchip can actively generate and send signals, utilizes the characteristic that the target microchip sends an execution instruction to other microchips (namely, the execution microchip), and lightens the corresponding LED after receiving the execution instruction, in the process, a data line from a control end to the target microchip, an address line from the target bit chip to the execution microchip and the connection between the execution microchip and an LED lamp bead can be detected, one action can detect the connection between the three structures, the detection efficiency can be greatly improved, the detection speed can be improved, meanwhile, the detection freedom degree can be improved, and the complex target detection can be realized through simple self-defining.
The LED display screen detection apparatus of this embodiment is used to implement the LED display screen detection method, and thus specific implementation of the LED display screen detection apparatus may be found in the foregoing embodiment parts of the LED display screen detection method, for example, the sending module 100, the collecting module 200, and the determining module 300, which are respectively used to implement steps S101, S102, and S103 in the LED display screen detection method.
The invention also provides a LED display screen detection device, which comprises:
a memory for storing a computer program;
and the processor is used for realizing the steps of the LED display screen detection method when the computer program is executed. The LED display screen detection method provided by the invention comprises the steps of sending a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead; collecting LED lighting information in a first preset time period after the lighting instruction is sent; and determining LED fault information according to the LED lighting information. The invention utilizes the characteristic that the microchip can actively generate and send signals, utilizes the characteristic that the target microchip sends an execution instruction to other microchips (namely, the execution microchip), and lightens the corresponding LED after receiving the execution instruction, in the process, a data line from a control end to the target microchip, an address line from the target bit chip to the execution microchip and the connection between the execution microchip and an LED lamp bead can be detected, one action can detect the connection between the three structures, the detection efficiency can be greatly improved, the detection speed can be improved, meanwhile, the detection freedom degree can be improved, and the complex target detection can be realized through simple self-defining.
The present invention also provides a computer readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the LED display screen detection method as described in any one of the above. The LED display screen detection method provided by the invention comprises the steps of sending a transfer driving instruction to a target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along an address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead; collecting LED lighting information in a first preset time period after the lighting instruction is sent; and determining LED fault information according to the LED lighting information. The invention utilizes the characteristic that the microchip can actively generate and send signals, utilizes the characteristic that the target microchip sends an execution instruction to other microchips (namely, the execution microchip), and lightens the corresponding LED after receiving the execution instruction, in the process, a data line from a control end to the target microchip, an address line from the target bit chip to the execution microchip and the connection between the execution microchip and an LED lamp bead can be detected, one action can detect the connection between the three structures, the detection efficiency can be greatly improved, the detection speed can be improved, meanwhile, the detection freedom degree can be improved, and the complex target detection can be realized through simple self-defining.
In the present specification, the embodiments are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts between the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
It should be noted that, in the present specification, relational terms such as first and second, and the like are used only for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the components and steps of the various examples have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The LED display screen detection method, apparatus, device and computer readable storage medium provided by the present invention are described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. A detection method for an LED display screen is characterized by comprising the following steps:
transmitting a transfer driving instruction to the target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead;
collecting LED lighting information in a first preset time period after the lighting instruction is sent;
and determining LED fault information according to the LED lighting information.
2. The LED display screen inspection method of claim 1, wherein the relay drive command is sent to the target microchip via a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along the address line; the starting instruction enables the execution microchip to send lighting instructions to corresponding LED lamp beads, and the lighting instructions comprise:
sending a sequential drive command to all microchips on the target daisy chain through the data line; the sequential driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; the primary starting instruction enables the execution microchip to send a primary lighting instruction to the corresponding LED lamp bead;
Correspondingly, the collecting the LED lighting information within the first preset time period after the lighting instruction is sent includes:
acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent;
accordingly, the determining of the LED failure information according to the LED lighting information includes:
and determining LED fault information according to the LED primary lighting information.
3. The LED display screen detection method of claim 2, further comprising, after collecting the LED lighting information for one time:
sending a reverse driving command to all microchips on the target daisy chain through the data line; the reverse driving instruction enables the received microchip to send a secondary starting instruction to an adjacent execution microchip along a second direction of the target daisy chain; the secondary starting instruction enables the execution microchip to send a secondary lighting instruction to the corresponding LED lamp bead;
collecting LED secondary lighting information in a first preset time period after the secondary lighting instruction is sent;
correspondingly, the determining the LED fault information according to the LED primary lighting information includes:
and determining LED fault information according to the LED primary lighting information and the LED secondary lighting information.
4. The LED display screen detection method of claim 1, further comprising:
sending an active feedback instruction to the target microchip; said active feedback instructions cause said target microchip to return reporting feedback instructions over said data lines or said address lines; the report feedback instruction comprises identification information of a corresponding target microchip;
receiving the report feedback instruction;
accordingly, the determining of the LED failure information according to the LED lighting information includes:
and determining LED fault information according to the LED lighting information and the report feedback instruction.
5. The LED display screen detection method of claim 1, further comprising:
sending a drive instruction to the target microchip; the driving instruction enables the target microchip to send a target lighting instruction to the corresponding LED lamp bead;
acquiring target LED lighting information in a first preset time period after the target lighting instruction is sent;
accordingly, the determining of the LED failure information according to the LED lighting information includes:
and determining LED fault information according to the LED lighting information and the target LED lighting information.
6. The utility model provides a LED display screen detection device which characterized in that includes:
The transmitting module is used for transmitting a transfer driving instruction to the target microchip through a data line; the transfer driving instruction enables the target microchip to send a starting instruction to the execution microchips on the same daisy chain along an address line; the starting instruction enables the execution microchip to send a lighting instruction to the corresponding LED lamp bead;
the acquisition module is used for acquiring LED lighting information in a first preset time period after the lighting instruction is sent;
and the determining module is used for determining LED fault information according to the LED lighting information.
7. The LED display screen detection apparatus of claim 6, wherein the transmission module comprises:
the forward delay sending unit is used for sending forward delay driving instructions to all the microchips on the target daisy chain through the data lines; the sequential driving instruction enables the received microchip to send a starting instruction to an adjacent execution microchip along the first direction of the target daisy chain; the primary starting instruction enables the execution microchip to send a primary lighting instruction to the corresponding LED lamp bead;
accordingly, the acquisition module comprises:
the primary acquisition unit is used for acquiring primary LED lighting information in a first preset time period after the primary lighting instruction is sent;
Accordingly, the determining module comprises:
and the primary determining unit is used for determining LED fault information according to the LED primary lighting information.
8. The LED display screen detection apparatus of claim 7, wherein the sending module further comprises:
the system comprises a reverse transmitting unit, a reverse driving unit and a reverse driving unit, wherein the reverse transmitting unit is used for transmitting a reverse driving instruction to all microchips on a target daisy chain through a data line; the reverse driving instruction enables the received microchip to send a secondary starting instruction to an adjacent execution microchip along a second direction of the target daisy chain; the secondary starting instruction enables the execution microchip to send a secondary lighting instruction to the corresponding LED lamp bead;
the secondary acquisition unit is used for acquiring LED secondary lighting information in a first preset time period after the secondary lighting instruction is sent;
accordingly, the determining means comprises:
and the secondary determining unit is used for determining LED fault information according to the primary LED lighting information and the secondary LED lighting information.
9. The utility model provides a LED display screen check out test set which characterized in that includes:
a memory for storing a computer program;
a processor for implementing the steps of the LED display screen detection method according to any one of claims 1 to 5 when executing the computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the LED display screen detection method according to any one of claims 1 to 5.
CN202210269136.7A 2022-03-18 2022-03-18 LED display screen detection method, device and equipment Pending CN114675155A (en)

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CN202210269136.7A CN114675155A (en) 2022-03-18 2022-03-18 LED display screen detection method, device and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210269136.7A CN114675155A (en) 2022-03-18 2022-03-18 LED display screen detection method, device and equipment

Publications (1)

Publication Number Publication Date
CN114675155A true CN114675155A (en) 2022-06-28

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