WO2023000928A1 - 一种拼接屏的故障检测方法、介质、产品及系统 - Google Patents

一种拼接屏的故障检测方法、介质、产品及系统 Download PDF

Info

Publication number
WO2023000928A1
WO2023000928A1 PCT/CN2022/101353 CN2022101353W WO2023000928A1 WO 2023000928 A1 WO2023000928 A1 WO 2023000928A1 CN 2022101353 W CN2022101353 W CN 2022101353W WO 2023000928 A1 WO2023000928 A1 WO 2023000928A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
hdmi
lvds
hdmi signal
initial
Prior art date
Application number
PCT/CN2022/101353
Other languages
English (en)
French (fr)
Inventor
罗益峰
Original Assignee
广州朗国电子科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州朗国电子科技股份有限公司 filed Critical 广州朗国电子科技股份有限公司
Publication of WO2023000928A1 publication Critical patent/WO2023000928A1/zh

Links

Images

Classifications

    • 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
    • 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
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details

Definitions

  • the invention relates to the field of splicing screen fault detection, in particular to a splicing screen fault detection method, equipment, medium, product and system.
  • the existing splicing screen occasionally has a single screen or several screens that are not bright during use, and this situation is usually due to the failure of the HDMI receiving port or LVDS output port in the screen control system. Correctly displays content sent by external consoles.
  • the traditional detection method for the failure of the screen to display the playback content due to the failure of the HDMI receiving port or the LVDS output port is mainly: after the staff actively finds that the screen cannot be displayed normally, immediately judge whether the screen itself is faulty, if not, then confirm If the HDMI receiving port or LVDS output port fails, manually report the fault message to the external console.
  • the existing fault detection for HDMI receiving port or LVDS output port is mostly through manual active discovery, which reduces the processing efficiency and detection efficiency of such faults, thus affecting the normal use of the splicing screen.
  • one of the purposes of the present invention is to provide a fault detection method for splicing screens, which can solve the problem that most of the existing fault detections for HDMI receiving ports or LVDS output ports are found manually and actively. This method reduces the processing efficiency and detection efficiency of such faults, thereby affecting the normal use of the splicing screen.
  • the second object of the present invention is to provide a computer-readable storage medium, which can solve the problem that most of the existing fault detections for HDMI receiving ports or LVDS output ports are manually and actively discovered, which reduces the processing of such faults Efficiency and detection efficiency, thus affecting the normal use of the splicing screen.
  • the third object of the present invention is to provide a computer program product, which can solve the problem that most of the existing fault detections for HDMI receiving ports or LVDS output ports are manually and actively found, which reduces the processing efficiency of such faults and Detection efficiency, thus affecting the normal use of the splicing screen.
  • the fourth object of the present invention is to provide a fault detection system for splicing screens, which can solve the problem that most of the existing fault detections for HDMI receiving ports or LVDS output ports are manually found actively, which reduces the risk of such faults.
  • the processing efficiency and detection efficiency affect the normal use of the splicing screen.
  • a fault detection method for a splicing screen includes several screens, each of which is controlled by a uniquely corresponding main control drive board, and the main control drive board is provided with a first HDMI signal receiving port, A second HDMI signal receiving port, an LVDS signal output port, and a signal converter, the signal converter is respectively connected to the second HDMI signal receiving port and the LVDS signal output port, and the method is performed by the main control drive board execution, including the following steps:
  • Receiving the initial HDMI signal receiving the initial HDMI signal input by the external console through the first HDMI signal receiving port, and converting the initial HDMI signal into an LVDS signal;
  • Output LVDS signal output the LVDS signal to the control panel in the screen through the LVDS signal output port for image display, and output the LVDS signal to the signal converter through the LVDS signal output port;
  • the current HDMI signal receiving the current HDMI signal input by the signal converter through the second HDMI signal receiving port, the current HDMI signal is obtained by converting the LVDS signal by the signal converter;
  • the original HDMI signal before converting the original HDMI signal to an LVDS signal, it also includes saving the original HDMI signal as a picture in BMP format to obtain the original BMP picture, and before the signal comparison, it also includes saving the current HDMI signal as a picture in BMP format , to get the current BMP picture.
  • the signal comparison specifically includes: comparing the similarity between the current BMP picture corresponding to the current HDMI signal and the initial BMP picture corresponding to the initial HDMI signal, to obtain a comparison result.
  • the initial HDMI signal before saving the initial HDMI signal as a picture in BMP format, it also includes unifying the data format of the initial HDMI signal into RGB format, and before saving the current HDMI signal as a picture in BMP format, it also includes saving the current HDMI signal.
  • the data format of the signal is unified as RGB format.
  • the preset condition is that the similarity is not less than 80%.
  • a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to detect a splicing screen failure detection method described in this application.
  • a computer program product includes a computer program, and when the computer program is executed by a processor, a splicing screen fault detection method described in this application is implemented.
  • a fault detection system for a splicing screen includes several screens, including several main control drive boards, each main control drive board is used to control the only corresponding screen in the splicing screen, and the main control drive board is set There are a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port, and a signal converter, and the signal converter is respectively connected to the second HDMI signal receiving port and the LVDS signal output port, and the The LVDS signal output port is connected to the TCON board in the corresponding screen;
  • the main control driver board receives the initial HDMI signal sent by the external console through the first HDMI signal receiving port, and the main control driver board converts the initial HDMI signal into an LVDS signal and outputs it to the TCON board through the LVDS signal output port And a signal converter, the signal converter LVDS signal is converted into the current HDMI signal, the signal converter sends the current HDMI signal to the main control driver board through the second HDMI signal receiving port, the main control The driver board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity; when the comparison result does not meet the preset condition, the main control driver board determines that there is a fault and generates a fault message, The main control drive board sends fault information to the external console.
  • model of the signal converter is an ITE6263 LVDS-HDMI converter.
  • main control driver board is connected with the external console through a RS232 serial port.
  • the beneficial effect of the present invention lies in: a fault detection method of a splicing screen in the present application, by outputting the LVDS signal to the TCON board in the screen through the LVDS signal output port, the LVDS signal is passed through the LVDS signal
  • the output port is output to the signal converter, and the current HDMI signal obtained by converting the LVDS signal is received by the signal converter, and the current HDMI signal is compared with the initial HDMI signal, so as to judge the HDMI receiving port or LVDS output according to the comparison result Whether the port fails, the whole process does not require manual participation, and realizes the intelligent fault detection of the HDMI receiving port or the LVDS output port, improves the fault detection efficiency, ensures the fault handling efficiency of the DMI receiving port or the LVDS output port, and improves the user experience. use satisfaction.
  • FIG. 1 is a schematic flow chart of a splicing screen fault detection method according to the present invention.
  • the splicing screen involved includes several screens, and each of the screens is controlled by a unique corresponding main control drive board, and the main control drive board is provided with a first HDMI signal receiving port, a second HDMI signal receiving port, and a second HDMI signal receiving port.
  • Receiving port, LVDS signal output port, signal converter, the signal converter is respectively connected with the second HDMI signal receiving port and the LVDS signal output port, each screen on the splicing screen is provided with a The TCON board that converts the image signal and displays it on the screen, the LVDS signal output port is connected with the TCON board.
  • the main control driver board corresponding to each screen is arranged on the back of the screen, and each main control driver board is provided with at least two HDMI signal receiving ports, and the order for receiving HDMI signals is the first HDMI signal receiving port, if there are two HDMI signal receiving ports in total, the other HDMI signal receiving port is designated as the second HDMI signal receiving port, if there are more than two HDMI signal receiving ports in total, the remaining unreceived One of the HDMI signal receiving ports that receive HDMI signals is selected as the second HDMI signal receiving port.
  • the HDMI signal receiving port also known as high-definition multimedia interface
  • High-Definition Multimedia Interface is the first all-digital high-definition, multi-sound interface that supports transmission on a single cable without compression.
  • digital interface for channel audio and smart format and control command data.
  • LVDS Low-Voltage Differential Signaling
  • Low-Voltage Differential Signaling is a differential signal technology with low power consumption, low bit error rate, low crosstalk and low radiation. This transmission technology can reach more than 155Mbps.
  • the core of LVDS technology is the use of extremely Low voltage swing and high-speed differential transmission of data can realize point-to-point or point-to-multipoint connection.
  • the transmission medium can be copper PCB connection or balanced cable.
  • the TCON board is generally called a logic board or a screen driver board. Its main function is to process the LVDS image data input signal (input signal includes RGB data signal, clock signal, and control signal) sent by the digital board through the logic board. It can drive the LVDS signal of the LCD screen, and then directly send it to the LVDS receiving chip of the LCD screen.
  • the above signal converter is an LVDS-HDMI converter model ITE6263.
  • a fault detection method for a splicing screen of the present invention includes the following steps:
  • the main control driver board receives the initial HDMI signal input by the external console through the first HDMI signal receiving port, and converts the initial HDMI signal into an LVDS signal.
  • the data format of the HDMI signal is YUV format or RGB format. Therefore, before converting the initial HDMI signal to LVDS signal, the main control driver board judges whether the data format of the initial HDMI signal is YUV format or RGB format. If it is YUV format, then It is converted into RGB format, and the conversion of the two is specifically shown in the following formula (1):
  • R is the Red value of HDMI signal in RGB format
  • G is the Green value of HDMI signal in RGB format
  • B is the Blue value of HDMI signal in RGB format
  • Y is the brightness value of HDMI signal in YUV format
  • U is the chroma value of the HDMI signal in the YUV format
  • V is the density value of the HDMI signal in the YUV format. If it is in RGB format, no conversion is required.
  • the purpose of this step is to unify the data format of all HDMI signals into RGB format. After unifying the data format of the HDMI signal into the RGB format, the initial HDMI signal is saved as a picture in the BMP format to obtain the initial BMP picture.
  • the main control driver board outputs the LVDS signal to the TCON board in the screen through the LVDS signal output port for image display, and at the same time outputs the LVDS signal to the signal converter through the LVDS signal output port.
  • the signal converter receives the LVDS signal input from the LVDS signal output port, and converts the LVDS signal into the current HDMI signal, and the signal converter inputs the current HDMI signal to the main control driver board through the idle second HDMI signal receiving port.
  • the main control driver board receives the current HDMI signal input by the signal converter through the second HDMI signal receiving port, and the current HDMI signal is obtained by converting the LVDS signal by the signal converter.
  • the main control driver board after receiving the current HDMI signal, the main control driver board also needs to judge whether the current HDMI signal is in YUV format or RGB format. If it is in YUV format, it will be converted to RGB format to ensure the current HDMI signal
  • the data format is RGB format. Unify the data format of the current HDMI signal into the RGB format before performing the signal comparison step.
  • the main control driver board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity. Before this step, it is also included that the main control driver board saves the current HDMI signal as a picture in BMP format to obtain the current BMP picture. Therefore, this step specifically includes: comparing the similarity between the current BMP picture corresponding to the current HDMI signal and the initial BMP picture corresponding to the initial HDMI signal, and obtaining a comparison result containing similarity.
  • the present invention also provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to detect a splicing screen fault described in this application.
  • the present invention also provides a computer program product, including a computer program.
  • a computer program product including a computer program.
  • the computer program is executed by a processor, the splicing screen fault detection method described in this application is implemented.
  • the present invention also provides a fault detection system for a splicing screen
  • the splicing screen includes several screens, including several main control drive boards, each main control drive board is used to control the only corresponding screen in the splicing screen, the main control
  • the driver board is provided with a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port, and a signal converter, and the signal converter is connected to the second HDMI signal receiving port and the LVDS signal output port respectively.
  • the LVDS signal output port is connected with the TCON board in the corresponding screen;
  • the main control driver board receives the initial HDMI signal sent by the external console through the first HDMI signal receiving port, and the main control driver board converts the initial HDMI signal into an LVDS signal and outputs it to the TCON board through the LVDS signal output port And a signal converter, the signal converter LVDS signal is converted into the current HDMI signal, the signal converter sends the current HDMI signal to the main control driver board through the second HDMI signal receiving port, the main control The driver board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity; when the comparison result does not meet the preset condition, the main control driver board determines that there is a fault and generates a fault message, The main control drive board sends fault information to the external console.
  • the model of the signal converter is an ITE6263 LVDS-HDMI converter.
  • the main control driver board is wired with the external console through the RS232 serial port.
  • a fault detection method for a splicing screen in the present application by outputting the LVDS signal to the TCON board in the screen through the LVDS signal output port while outputting the LVDS signal to the signal converter through the LVDS signal output port, the receiving signal converter
  • the current HDMI signal obtained by converting the LVDS signal is compared with the initial HDMI signal, so as to judge whether the HDMI receiving port or the LVDS output port is faulty according to the comparison result.
  • the whole process does not require manual participation, and realizes
  • the intelligent fault detection of HDMI receiving port or LVDS output port improves the fault detection efficiency, ensures the fault handling efficiency of DMI receiving port or LVDS output port, and improves user satisfaction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

一种拼接屏的故障检测方法，包括接收初始HDMI信号、输出LVDS信号、接收当前HDMI信号、信号比对、发送故障信息。该故障检测方法，实现了对HDMI接收端口或者LVDS输出端口的智能化故障检测，提高了故障检测效率，保证了DMI接收端口或者LVDS输出端口的故障处理效率，提高了用户的使用满意度。

Description

一种拼接屏的故障检测方法、介质、产品及系统 技术领域
本发明涉及拼接屏故障检测领域，尤其涉及一种拼接屏的故障检测方法、设备、介质、产品及系统。
背景技术
现有的拼接屏在使用过程中偶尔会出现单独某块屏幕或者几块屏幕不亮的故障状况，而这种状况通常是由于屏幕控制系统中HDMI接收端口或者LVDS输出端口出现故障导致的屏幕无法正确显示外部控制台传送的内容。传统的对于因HDMI接收端口或者LVDS输出端口出现故障导致屏幕无法正常显示播放内容的检测方式主要为：工作人员主动发现屏幕无法正常显示后，立即判断是否为屏幕自身出现故障，若否，则确认为HDMI接收端口或者LVDS输出端口出现故障，此时将故障消息人工上报至外部控制台。综上可知，现有对于HDMI接收端口或者LVDS输出端口的故障检测大多通过人工主动发现的方式，这种方式降低了此类故障的处理效率以及检测效率，从而影响拼接屏的正常使用。
发明内容
为了克服现有技术的不足，本发明的目的之一在于提供一种拼接屏的故障检测方法，其能解决现有对于HDMI接收端口或者LVDS输出端口的故障检测大多通过人工主动发现的方式，这种方式降低了此类故障的处理效率以及检测效率，从而影响拼接屏的正常使用的问题。
本发明的目的之二在于提供一种计算机可读存储介质，其能解决现有对于HDMI接收端口或者LVDS输出端口的故障检测大多通过人工主动发现的方式，这种方式降低了此类故障的处理效率以及检测效率，从而影响拼接屏的正常使用的问题。
本发明的目的之三在于提供一种计算机程序产品，其能解决现有对于HDMI接收端口或者LVDS输出端口的故障检测大多通过人工主动发现的方式，这种方式降低了此类故障的处理效率以及检测效率，从而影响拼接屏的正常使用的问题。
本发明的目的之四在于提供一种拼接屏的故障检测系统，其能解决现有对于HDMI接收端口或者LVDS输出端口的故障检测大多通过人工主动发现的方式，这种方式降低了此类故障的处理效率以及检测效率，从而影响拼接屏的正常使用的问题。
本发明的目的之一采用以下技术方案实现：
一种拼接屏的故障检测方法，所述拼接屏包括若干块屏幕，每块所述屏幕由唯一对应的主控驱动板来控制，所述主控驱动板上设置有第一HDMI信号接收端口、第二HDMI信号接收端口、LVDS信号输出端口、信号转换器，所述信号转换器分别与所述第二HDMI信号接收端口和所述LVDS信号输出端口连接，所述方法由所述主控驱动板执行，包括以下步骤：
接收初始HDMI信号，接收外部控制台通过第一HDMI信号接收端口输入的初始HDMI信号，并将初始HDMI信号转换为LVDS信号；
输出LVDS信号，将LVDS信号通过LVDS信号输出端口输出至屏幕中控制板上用于进行图像显示，同时将LVDS信号通过LVDS信号输出端口输出至信号转换器中；
接收当前HDMI信号，接收信号转换器通过第二HDMI信号接收端口输入的当前HDMI信号，所述当前HDMI信号由信号转换器将LVDS信号进行转换得到；
信号比对，将所述当前HDMI信号与初始HDMI信号进行比对，得到含有相似度的比对结果；
发送故障信息，当比对结果未达到预设条件时，则认定出现故障并生成故障信息，将故障信息发送至外部控制台。
进一步地，在将初始HDMI信号转换为LVDS信号之前还包括将初始HDMI信号保存为BMP格式的图片，得到初始BMP图片，在所述信号比对之前还包括将当前HDMI信号保存为BMP格式的图片，得到当前BMP图片。
进一步地，所述信号比对具体为：将所述当前HDMI信号对应的当前BMP图片与所述初始HDMI信号对应的初始BMP图片进行相似度比对，得到比对结果。
进一步地，在所述将初始HDMI信号保存为BMP格式的图片之前还包括将初始HDMI信号的数据格式统一为RGB格式，在所述将当前HDMI信号保存为BMP格式的图片之前还包括将当前HDMI信号的数据格式统一为RGB格式。
进一步地，所述预设条件为相似度不小于80％。
本发明的目的之二采用以下技术方案实现：
一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行本申请中所述的一种拼接屏的故障检测方法。
本发明的目的之三采用以下技术方案实现：
一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现本申请中所述的一种拼接屏的故障检测方法。
本发明的目的之四采用以下技术方案实现：
一种拼接屏的故障检测系统，所述拼接屏包括若干块屏幕，包括若干主控驱动板，每个主控驱动板用于控制拼接屏中唯一对应的屏幕，所述主控驱动板上设置有第一HDMI信号接收端口、第二HDMI信号接收端口、LVDS信号输出端口、信号转换器，所述信号转换器分别与所述第二HDMI信号接收端口和所述LVDS信号输出端口连接，所述LVDS信号输出端口与对应屏幕中的TCON板连接；
所述主控驱动板通过所述第一HDMI信号接收端口接收外部控制台发送的初始HDMI信号，所述主控驱动板将初始HDMI信号转换为LVDS信号并将通过LVDS信号输出端口输出至TCON板以及信号转换器，所述信号转换器LVDS信号进行转换为当前HDMI信号，所述信号转换器将当前HDMI信号通过所述第二HDMI信号接收端口发送至所述主控驱动板，所述主控驱动板将所述当前HDMI信号与初始HDMI信号进行比对，得到含有相似度的比对结果；当比对结果未达到预设条件时，所述主控驱动板认定出现故障并生成故障信息，所述主控驱动板将故障信息发送至外部控制台。
进一步地，所述信号转换器的型号为ITE6263的LVDS-HDMI转换器。
进一步地，所述主控驱动板通过RS232串口与外部控制台进行有线连接。
相比现有技术，本发明的有益效果在于：本申请中的一种拼接屏的故障检测方法，通过在将LVDS信号通过LVDS信号输出端口输出至屏幕中TCON板的同时将LVDS信号通过LVDS信号输出端口输出至信号转换器中，接收信号转换器将LVDS信号进行转换得到的当前HDMI信号，将所述当前HDMI信号与初始HDMI信号进行比对，从而根据比对结果判断HDMI接收端口或者LVDS输出端口是否发生故障，整个过程无需人工参与，实现了对HDMI接收端口或者LVDS输出端口的智能化故障检测，提高了故障检测效率，保证了DMI接收端口或者LVDS输出端口的故障处理效率，提高了用户的使用满意度。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明的一种拼接屏的故障检测方法的方法流程示意图。
具体实施方式
下面，结合附图以及具体实施方式，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
在本发明中，涉及的拼接屏包括若干块屏幕，每块所述屏幕由唯一对应的主控驱动板来控制，所述主控驱动板上设置有第一HDMI信号接收端口、第二HDMI信号接收 端口、LVDS信号输出端口、信号转换器，所述信号转换器分别与所述第二HDMI信号接收端口和所述LVDS信号输出端口连接，拼接屏上每块屏幕中都设置有用于将LVDS信号转换为图像信号并在屏幕上显示的TCON板，LVDS信号输出端口与TCON板连接。在本实施例中，每块屏幕对应的主控驱动板设置在屏幕的被部，每块主控驱动板上设置有至少两个HDMI信号接收端口，将用于接收HDMI信号的令为第一HDMI信号接收端口，若一共有两个HDMI信号接收端口，则将另一个未接收HDMI信号的令为第二HDMI信号接收端口，若一共为两个以上的HDMI信号接收端口，则在剩余的未接收HDMI信号的HDMI信号接收端口中任选一个作为第二HDMI信号接收端口。
在本实施例中，HDMI信号接收端口(High－Definition Multimedia Interface)又被称为高清晰度多媒体接口，是首个支持在单线缆上传输，不经过压缩的全数字高清晰度、多声道音频和智能格式与控制命令数据的数字接口。LVDS(Low-Voltage DifferentialSignaling)低电压差分信号，是一种低功耗、低误码率、低串扰和低辐射的差分信号技术，这种传输技术可以达到155Mbps以上，LVDS技术的核心是采用极低的电压摆幅高速差动传输数据，可以实现点对点或一点对多点的连接，其传输介质可以是铜质的PCB连线，也可以是平衡电缆。TCON板一般叫逻辑板也叫屏驱动板，主要作用是把数字板送来的LVDS图像数据输入信号(输入信号包含RGB数据信号、时钟信号、控制信号三类信号)通过逻辑板处理后，转换成能驱动液晶屏的LVDS信号，再直接送往液晶屏的LVDS接收芯片。上述信号转换器为型号为ITE6263的LVDS-HDMI转换器。
如图1所示，本发明的一种拼接屏的故障检测方法包括以下步骤：
接收初始HDMI信号，主控驱动板接收外部控制台通过第一HDMI信号接收端口输入的初始HDMI信号，并将初始HDMI信号转换为LVDS信号。一般来说，HDMI信号的数据格式为YUV格式或者RGB格式，因此在将初始HDMI信号转换为LVDS信号之前主控驱动板判断初始HDMI信号的数据格式是YUV格式还是RGB格式，若是YUV格式，则将其转换为RGB格式，二者转换具体如下述公式(1)所示：
Figure PCTCN2022101353-appb-000001
其中R为HDMI信号在RGB格式下的Red值,G为HDMI信号在RGB格式下的Green值，B为HDMI信号在RGB格式下的Blue值，Y为HDMI信号在YUV格式下的明亮度值，U为HDMI信号在YUV格式下的色度值，V为HDMI信号在YUV格式下的浓度值。若是RGB格式，则无需转换，此步骤的目的是将所有HDMI信号的数据格式统一为RGB格式。将HDMI信号的数据格式统一为RGB格式之后，将初始HDMI信号保存为BMP格式的图片，得到初始BMP图片。
输出LVDS信号，主控驱动板将LVDS信号通过LVDS信号输出端口输出至屏幕中TCON板上用于进行图像显示，同时将LVDS信号通过LVDS信号输出端口输出至信号转换器中。
信号转换，信号转换器接收由LVDS信号输出端口输入的LVDS信号，并将LVDS信号转换为当前HDMI信号，信号转换器将当前HDMI信号通过闲置的第二HDMI信号接收端口输入至主控驱动板。
接收当前HDMI信号，主控驱动板接收信号转换器通过第二HDMI信号接收端口输入的当前HDMI信号，所述当前HDMI信号由信号转换器将LVDS信号进行转换得到。在本实例中，此处主控驱动板在接收到当前HDMI信号后，也需要判断当前HDMI信号是YUV格式还是RGB格式，若是YUV格式，则将其转换为RGB格式，从而保证当前HDMI信号的数据格式为RGB格式。将当前HDMI信号的数据格式统一为RGB格式后再进行信号比对步骤。
信号比对，主控驱动板将所述当前HDMI信号与初始HDMI信号进行比对，得到含有相似度的比对结果。在本步骤之前还包括主控驱动板将当前HDMI信号保存为BMP格 式的图片，得到当前BMP图片。因此，本步骤具体为：将所述当前HDMI信号对应的当前BMP图片与所述初始HDMI信号对应的初始BMP图片进行相似度比对，得到含有相似度的比对结果。
发送故障信息，当比对结果未达到预设条件时，则认定出现故障并生成故障信息，将故障信息发送至外部控制台，在本实施例中，若比对结果中的相似度不小于80％，此时考虑到实际存在的允许误差，则认定图片在经过HDMI信号接收端口输入以及LVDS信号输出端口输出的过程中保持了完整性，HDMI接收端口或者LVDS输出端口未出现故障，否则，则HDMI接收端口或者LVDS输出端口出现故障，生成故障信息并发送至值外部控制台，工作人员通过外部控制台对上述两个端口进行进一步检测。
本发明还提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行本申请中所述的一种拼接屏的故障检测方法。
本发明还提供一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现本申请中所述的一种拼接屏的故障检测方法。
本发明还提供一种拼接屏的故障检测系统，所述拼接屏包括若干块屏幕，包括若干主控驱动板，每个主控驱动板用于控制拼接屏中唯一对应的屏幕，所述主控驱动板上设置有第一HDMI信号接收端口、第二HDMI信号接收端口、LVDS信号输出端口、信号转换器，所述信号转换器分别与所述第二HDMI信号接收端口和所述LVDS信号输出端口连接，所述LVDS信号输出端口与对应屏幕中的TCON板连接；
所述主控驱动板通过所述第一HDMI信号接收端口接收外部控制台发送的初始HDMI信号，所述主控驱动板将初始HDMI信号转换为LVDS信号并将通过LVDS信号输出端口输出至TCON板以及信号转换器，所述信号转换器LVDS信号进行转换为当前HDMI信号，所述信号转换器将当前HDMI信号通过所述第二HDMI信号接收端口发送至所述主控驱动板，所述主控驱动板将所述当前HDMI信号与初始HDMI信号进行比对，得到含有相似度的比对结果；当比对结果未达到预设条件时，所述主控驱动板认定出现故障并生成故障信息，所述主控驱动板将故障信息发送至外部控制台。
优选的，所述信号转换器的型号为ITE6263的LVDS-HDMI转换器。所述主控驱动板通过RS232串口与外部控制台进行有线连接。
本申请中的一种拼接屏的故障检测方法，通过在将LVDS信号通过LVDS信号输出端口输出至屏幕中TCON板的同时将LVDS信号通过LVDS信号输出端口输出至信号转换器中，接收信号转换器将LVDS信号进行转换得到的当前HDMI信号，将所述当前HDMI信号与初始HDMI信号进行比对，从而根据比对结果判断HDMI接收端口或者LVDS输出端口是否发生故障，整个过程无需人工参与，实现了对HDMI接收端口或者LVDS输出端口的智能化故障检测，提高了故障检测效率，保证了DMI接收端口或者LVDS输出端口的故障处理效率，提高了用户的使用满意度。
以上，仅为本发明的较佳实施例而已，并非对本发明作任何形式上的限制；凡本行业的普通技术人员均可按说明书附图所示和以上而顺畅地实施本发明；但是,凡熟悉本专业的技术人员在不脱离本发明技术方案范围内，利用以上所揭示的技术内容而做出的些许更动、修饰与演变的等同变化，均为本发明的等效实施例；同时,凡依据本发明的实质技术对以上实施例所作的任何等同变化的更动、修饰与演变等，均仍属于本发明的技术方案的保护范围之内。

Claims (9)

  1. 一种拼接屏的故障检测方法，所述拼接屏包括若干块屏幕，每块所述屏幕由唯一对应的主控驱动板来控制，其特征在于：所述主控驱动板上设置有第一HDMI信号接收端口、第二HDMI信号接收端口、LVDS信号输出端口、信号转换器，所述信号转换器分别与所述第二HDMI信号接收端口和所述LVDS信号输出端口连接，所述方法由所述主控驱动板执行，包括以下步骤：
    接收初始HDMI信号，接收外部控制台通过第一HDMI信号接收端口输入的初始HDMI信号，并将初始HDMI信号转换为LVDS信号；
    输出LVDS信号，将LVDS信号通过LVDS信号输出端口输出至屏幕中TCON板上用于进行图像显示，同时将LVDS信号通过LVDS信号输出端口输出至信号转换器中；
    接收当前HDMI信号，接收信号转换器通过第二HDMI信号接收端口输入的当前HDMI信号，所述当前HDMI信号由信号转换器将LVDS信号进行转换得到；
    信号比对，将所述当前HDMI信号与初始HDMI信号进行比对，得到含有相似度的比对结果；
    发送故障信息，当比对结果未达到预设条件时，则认定出现故障并生成故障信息，将故障信息发送至外部控制台；
    在将初始HDMI信号转换为LVDS信号之前还包括将初始HDMI信号保存为BMP格式的图片，得到初始BMP图片，在所述信号比对之前还包括将当前HDMI信号保存为BMP格式的图片，得到当前BMP图片。
  2. 如权利要求1所述的一种拼接屏的故障检测方法，其特征在于：所述信号比对具体为：将所述当前HDMI信号对应的当前BMP图片与所述初始HDMI信号对应的初始BMP图片进行相似度比对，得到比对结果。
  3. 如权利要求1所述的一种拼接屏的故障检测方法，其特征在于：在所述将初始HDMI信号保存为BMP格式的图片之前还包括将初始HDMI信号的数据格式统一为RGB格式，在所述将当前HDMI信号保存为BMP格式的图片之前还包括将当前HDMI信号的数据格式统一为RGB格式。
  4. 如权利要求1所述的一种拼接屏的故障检测方法，其特征在于：所述预设条件为相似度不小于80％。
  5. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于：所述计算机程序被处理器执行权利要求1-4中任意一项所述的一种拼接屏的故障检测方法。
  6. 一种计算机程序产品，包括计算机程序，其特征在于，该计算机程序被处理器执行时实现权利要求1-4中任意一项所述的一种拼接屏的故障检测方法。
  7. 一种拼接屏的故障检测系统，所述拼接屏包括若干块屏幕，其特征在于：包括若干主控驱动板，每个主控驱动板用于控制拼接屏中唯一对应的屏幕，所述主控驱动板上设置有第一HDMI信号接收端口、第二HDMI信号接收端口、LVDS信号输出端口、信号转换器，所述信号转换器分别与所述第二HDMI信号接收端口和所述LVDS信号输出端口连接，所述LVDS信号输出端口与对应屏幕中的TCON板连接；
    所述主控驱动板通过所述第一HDMI信号接收端口接收外部控制台发送的初始HDMI信号，所述主控驱动板将初始HDMI信号转换为LVDS信号并将通过LVDS信号输出端口输出至TCON板以及信号转换器，所述信号转换器LVDS信号进行转换为当前HDMI信号，所述信号转换器将当前HDMI信号通过所述第二HDMI信号接收端口发送至所述主控驱动板，所述主控驱动板将所述当前HDMI信号与初始HDMI信号进行比对，得到含有相似度的比对结果；当比对结果未达到预设条件时，所述主控驱动板认定出现故障并生成故障信息，所述主控驱动板将故障信息发送至外部控制台。
  8. 如权利要求7所述的一种拼接屏的故障检测系统，其特征在于：所述信号转换器的型号为ITE6263的LVDS-HDMI转换器。
  9. 如权利要求7所述的一种拼接屏的故障检测系统，其特征在于：所述主控驱动板通过RS232串口与外部控制台进行有线连接。
PCT/CN2022/101353 2021-07-21 2022-06-27 一种拼接屏的故障检测方法、介质、产品及系统 WO2023000928A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110825665.6 2021-07-21
CN202110825665.6A CN113270058B (zh) 2021-07-21 2021-07-21 一种拼接屏的故障检测方法、介质、产品及系统

Publications (1)

Publication Number Publication Date
WO2023000928A1 true WO2023000928A1 (zh) 2023-01-26

Family

ID=77236990

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/101353 WO2023000928A1 (zh) 2021-07-21 2022-06-27 一种拼接屏的故障检测方法、介质、产品及系统

Country Status (2)

Country Link
CN (1) CN113270058B (zh)
WO (1) WO2023000928A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113270058B (zh) * 2021-07-21 2021-12-03 广州朗国电子科技股份有限公司 一种拼接屏的故障检测方法、介质、产品及系统

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120136612A1 (en) * 2010-11-30 2012-05-31 Verizon Patent And Licensing, Inc. Hdmi device and interoperability testing systems and methods
CN104063322A (zh) * 2014-06-30 2014-09-24 广州视源电子科技股份有限公司 一种基于通道切换的测试方法及装置
CN105336289A (zh) * 2015-10-30 2016-02-17 京东方科技集团股份有限公司 一种拼接控制方法、装置以及拼接屏系统
CN106250281A (zh) * 2016-08-05 2016-12-21 联想(北京)有限公司 一种故障检测方法及设备
CN107205176A (zh) * 2017-07-17 2017-09-26 深圳创维－Rgb电子有限公司 一种信号转换装置及转换方法
CN207752739U (zh) * 2018-01-31 2018-08-21 国春鹏 带拼接功能的显示装置
CN207926779U (zh) * 2018-03-20 2018-09-28 广州视源电子科技股份有限公司 一种显示终端
CN109525826A (zh) * 2018-11-30 2019-03-26 武汉精立电子技术有限公司 一种基于光纤的长距离分布式图形信号发生器
CN209299400U (zh) * 2019-01-22 2019-08-23 深圳市金嵘达科技有限公司 一种分辨率自适应、带hdmi环接的多屏宝拼接驱动板
CN110336998A (zh) * 2019-07-04 2019-10-15 深圳市康冠技术有限公司 显示主板检测方法、显示主板检测装置和可读存储介质
CN210378427U (zh) * 2019-08-12 2020-04-21 北京美晶视界科技有限公司 一种液晶拼接屏
CN111901589A (zh) * 2020-07-29 2020-11-06 深圳市泰霖科技有限公司 一种电视机主板自动化测试系统
CN113270058A (zh) * 2021-07-21 2021-08-17 广州朗国电子科技股份有限公司 一种拼接屏的故障检测方法、介质、产品及系统

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120136612A1 (en) * 2010-11-30 2012-05-31 Verizon Patent And Licensing, Inc. Hdmi device and interoperability testing systems and methods
CN104063322A (zh) * 2014-06-30 2014-09-24 广州视源电子科技股份有限公司 一种基于通道切换的测试方法及装置
CN105336289A (zh) * 2015-10-30 2016-02-17 京东方科技集团股份有限公司 一种拼接控制方法、装置以及拼接屏系统
CN106250281A (zh) * 2016-08-05 2016-12-21 联想(北京)有限公司 一种故障检测方法及设备
CN107205176A (zh) * 2017-07-17 2017-09-26 深圳创维－Rgb电子有限公司 一种信号转换装置及转换方法
CN207752739U (zh) * 2018-01-31 2018-08-21 国春鹏 带拼接功能的显示装置
CN207926779U (zh) * 2018-03-20 2018-09-28 广州视源电子科技股份有限公司 一种显示终端
CN109525826A (zh) * 2018-11-30 2019-03-26 武汉精立电子技术有限公司 一种基于光纤的长距离分布式图形信号发生器
CN209299400U (zh) * 2019-01-22 2019-08-23 深圳市金嵘达科技有限公司 一种分辨率自适应、带hdmi环接的多屏宝拼接驱动板
CN110336998A (zh) * 2019-07-04 2019-10-15 深圳市康冠技术有限公司 显示主板检测方法、显示主板检测装置和可读存储介质
CN210378427U (zh) * 2019-08-12 2020-04-21 北京美晶视界科技有限公司 一种液晶拼接屏
CN111901589A (zh) * 2020-07-29 2020-11-06 深圳市泰霖科技有限公司 一种电视机主板自动化测试系统
CN113270058A (zh) * 2021-07-21 2021-08-17 广州朗国电子科技股份有限公司 一种拼接屏的故障检测方法、介质、产品及系统

Also Published As

Publication number Publication date
CN113270058A (zh) 2021-08-17
CN113270058B (zh) 2021-12-03

Similar Documents

Publication Publication Date Title
CN102097050B (zh) 一种实现显示信号无缝切换的装置和方法
CN201146580Y (zh) 一种自动测试系统及具有接口自动测试功能的电视机
WO2023000928A1 (zh) 一种拼接屏的故障检测方法、介质、产品及系统
CN205071166U (zh) 新型视频混合切换器
US11665313B2 (en) Adaptive method and system for data flow control based on variable frame structure in video image processing system
TW202215855A (zh) 偵測電路和喚醒方法
US20190324934A1 (en) Method for increasing the compatibility of displayport
US10067751B2 (en) Method of diagnosing and/or updating of software of an electronic device equipped with an HDMI type connector and associated device
CN106657815B (zh) 一种视频拼接处理系统及方法
CN206274660U (zh) 一种视频处理系统
CN111176922A (zh) 扩展坞测试装置、测试系统及测试方法
WO2020118767A1 (zh) 显示面板的驱动方法及驱动装置、显示装置
TWI486055B (zh) 影像訊號傳送裝置、接收裝置、傳輸系統及其方法
WO2010147316A2 (ko) 신호 전송방법, 신호 전송장치 및 신호 전송시스템
CN201039357Y (zh) 信号传输装置
CN212784865U (zh) 冗余电源电路及医疗显示装置
CN205510241U (zh) 一种高清osd系统
CN206441145U (zh) 一种基于tsumop88cdt9‑1的多接口高端lcd显示器主板
CN219320718U (zh) 显示屏扩展多接口转换装置
CN220964965U (zh) 兼具多类型信号接口转换功能的便携式视频图像发生器
CN114125326B (zh) 影像切换控制方法及影像处理装置
CN105120196B (zh) 一种hdmi双向复用系统及方法
TWI740654B (zh) 視訊資料顯示裝置
CN2893784Y (zh) 可供外部显示图像的电子装置
CN210867926U (zh) 一种输出端带osd报警显示功能的双电源热备混合矩阵

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22845093

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22845093

Country of ref document: EP

Kind code of ref document: A1