Remote test equipment and remote test system

Abstract

The utility model discloses remote testing equipment and a remote testing system, and relates to the technical field of testing. The remote test device comprises a central controller and a processing device, the central controller is connected with the processing device, the central controller is used for wired connection with a display device mainboard to be tested, the processing device is used for remote connection with a remote device, and the central controller is used for obtaining video signals played by the display device mainboard based on radio frequency signals in real time. Transmitting the video signal to a processing device; and the processing equipment is used for remotely transmitting the video signal to remote equipment, so that the remote equipment tests the video signal. Through the technical means, the central controller and the processing equipment can remotely transmit the video signal played by the display equipment mainboard based on the radio frequency signal to the remote equipment for synchronous playing, so that remote testing of the display equipment mainboard and low-delay playing of the video code stream are realized, the recording operation and the return operation of the video code stream are simplified, and the working efficiency is improved. And the development and test efficiency of the display equipment mainboard is improved.

Description

Technical Field

[0001] This application relates to the field of remote testing technology, and in particular to a remote testing device and a remote testing system. Background Technology

[0002] With the continuous development of television system technology, television systems have become increasingly powerful. Besides receiving local radio frequency signals and playing current television channels, they can also stream various online video resources. However, regardless of the expansion of the television system's functions, receiving radio frequency signals and playing the corresponding video streams remains its fundamental function. To ensure the normal operation of this basic function, during the development of a television system, it is necessary to confirm whether the radio frequency signals in the region where the system is used can be played normally on the system, and any abnormalities should be addressed promptly.

[0003] In related technologies, to confirm whether a television system can properly play the radio frequency (RF) signals of the area being used, developers will travel to that area to set up a signal acquisition platform. This platform records the video stream corresponding to the RF signals from that area, copies the recorded video stream to a hard drive, and then brings the hard drive back to the development area. In the development area, developers use specialized testing equipment to test the television system's playback of the video stream from the hard drive and adjust the system based on the playback results. Because each time the television system's ability to play RF signal video streams is tested, developers must travel to the area where the television system is used to record the corresponding video stream and then bring it back to the development area for on-site testing, the video stream recording and transmission process is cumbersome and cannot achieve low-latency playback, resulting in low development and testing efficiency for the television system. Utility Model Content

[0004] This application provides a remote testing device and a remote testing system, which remotely transmits video signals played by the display device motherboard based on radio frequency signals to a remote device for testing through a central controller and processing equipment. This enables remote testing of the display device motherboard and low-latency playback of the video stream, eliminating the need for staff to travel to the area where the display device motherboard is used to record the video stream and manually bring it back. This simplifies the recording and transmission of the video stream, thereby improving the development and testing efficiency of the display device motherboard.

[0005] In a first aspect, this application provides a remote testing device, including a central controller and a processing device. The central controller is connected to the processing device. The central controller is used for wired connection to the motherboard of a display device under test, and the processing device is used for remote connection to a remote device, wherein:

[0006] The central controller is used to acquire the video signal played by the motherboard of the display device based on the radio frequency signal in real time, and transmit the video signal to the processing device.

[0007] The processing device is used to remotely transmit the video signal to the remote device so that the remote device can test the video signal.

[0008] Through the aforementioned technical means, when the display device motherboard plays the corresponding video signal based on the radio frequency signal, it transmits the video signal to the central controller. The central controller then transmits the video signal to the processing device in real time. The processing device then remotely transmits the video signal to a remote device, which plays the received video signal in real time. Because the video signal played by the display device motherboard is transmitted to the remote device via signal lines and network, the video signal emitted by the display device motherboard can be quickly transmitted to the remote device for playback, achieving low-latency playback of the video signal on the remote device. This eliminates the need for personnel to travel to the area where the display device motherboard is used to record the video stream and manually bring it back, simplifying the recording and transmission operations. When the remote device plays the video signal, testers at the remote device end can verify the effect of the display device motherboard's video signal playback based on the playback content, enabling remote testing of the display device motherboard's radio frequency signal processing function, effectively improving the development and testing efficiency of the display device motherboard. The video stream required for display device motherboard testing does not need to be recorded and brought back manually from the area where it is used, effectively reducing the labor costs required for display device motherboard testing and development.

[0009] Optionally, the remote testing device further includes a stream card, which is used to connect to the radio frequency signal line and is connected to the processing device, wherein:

[0010] The stream card is used to convert the radio frequency signal transmitted by the radio frequency signal line into a video stream, record the video stream to obtain a corresponding video file, and transmit the video file to the processing device.

[0011] The processing device is used to upload the video file to a file server so that the remote device can download the video file on the file server.

[0012] Using the aforementioned technical means, a video stream corresponding to the radio frequency signal is recorded using a stream card to generate a video file. The video file is then stored on a cloud file server using a processing device. When the network is smooth, a remote device can download the video file from the file server and play the video stream. This allows staff at the remote device to verify the effect of the display device motherboard playing the video stream based on the content played by the remote device. This enables remote testing of the display device motherboard's radio frequency signal processing function, ensuring that the testing of the display device motherboard can proceed normally even in a poor wide area network environment, thereby improving the development and testing efficiency of the display device motherboard.

[0013] Optionally, the remote testing device further includes a video converter, which connects the central controller and the display device motherboard, wherein:

[0014] The display device motherboard is used to convert radio frequency signals into video streams, acquire video signals based on the video streams, and transmit the video signals to the video converter.

[0015] The video converter is used to receive video signals transmitted from the motherboard of the display device, convert the video signals into HDMI signals, and transmit the HDMI signals to the central controller.

[0016] The central controller is used to convert the HDMI signal into a USB video signal and transmit the USB video signal to the processing device.

[0017] Through the above technical means, the LVDS or VBO signal transmitted from the display device motherboard is converted into an HDMI signal by the video converter and transmitted to the central controller. The central controller then converts the HDMI signal into a USB video signal and transmits the video signal to the processing device, thus achieving reliable transmission of the video signal from the display device motherboard to the processing device.

[0018] Optionally, the audio cable of the display device motherboard is connected to the central controller, wherein:

[0019] The display device motherboard is used to convert radio frequency signals into video streams, acquire audio signals based on the video streams, and transmit the audio signals to the central controller via an audio cable.

[0020] The central controller is used to convert the audio signal into a USB audio signal and transmit the USB audio signal to the processing device.

[0021] By employing the aforementioned technical means, the audio signal played by the display device motherboard is acquired by the central controller and converted into a USB audio signal. The USB audio signal is then transmitted to the processing device, thus achieving reliable transmission of the audio signal from the display device motherboard to the processing device.

[0022] Optionally, the processing device is configured to generate a network audio / video stream based on the USB video signal and the USB audio signal, and remotely transmit the network audio / video stream to the remote device so that the remote device can play the network audio / video stream in real time.

[0023] Through the above-mentioned technical means, the USB video signal and USB audio signal are generated into a network audio and video stream by the processing device, and the network audio and video stream is remotely transmitted to a remote device. This allows the staff at the remote device to confirm the function of the display device motherboard in playing the audio and video corresponding to the radio frequency signal. This achieves low-latency playback of the audio and video stream corresponding to the radio frequency signal and improves the development and testing efficiency of the display device motherboard.

[0024] Optionally, the central controller includes button control pins, which are connected to the display device motherboard, wherein:

[0025] The button control pin is used to send an electrical signal to the display device motherboard, so that the display device motherboard performs the corresponding button control operation based on the electrical signal.

[0026] By employing the aforementioned technical means, the display device motherboard can be physically manipulated through the button control pins set in the central controller, thereby enabling remote testing of the display device motherboard's response to button control commands and improving the development and testing efficiency of the display device motherboard.

[0027] Optionally, the central controller includes an infrared control pin, which is connected to the motherboard of the display device, wherein:

[0028] The infrared control pin is used to send an infrared waveform signal to the display device motherboard, so that the display device motherboard performs a corresponding infrared control operation based on the infrared waveform signal.

[0029] By employing the aforementioned technical means, the display device motherboard is physically manipulated through the infrared control pins set in the central controller, enabling remote testing of the display device motherboard's response to infrared control commands, thereby improving the development and testing efficiency of the display device motherboard.

[0030] Optionally, the central controller includes a power pin connected to the display device motherboard, wherein:

[0031] The power pin is used to control the power-on and power-off of the display device motherboard.

[0032] By using the above-mentioned technical means, the power on / off of the display device motherboard can be controlled by the power pin of the central controller, eliminating the need for staff to go to the site to power on / off the display device motherboard, thus improving the autonomy of testing.

[0033] Optionally, the remote testing device includes three side-by-side storage spaces, which are respectively used to house the processing device, the central controller, and the display device motherboard, with the central controller placed in the middle storage space.

[0034] By employing the aforementioned technical methods, the internal structure of the remote testing equipment is designed with three parallel storage spaces to house the processing equipment, central controller, and display device motherboard, respectively. This integrated design reduces the use of wiring and lowers costs. Placing the central controller in the middle storage space facilitates easy replacement or maintenance of the outer processing equipment or display device motherboard, improving the efficiency of such replacement and maintenance.

[0035] Secondly, this application provides a remote testing system, including a remote device and the remote testing device as described in the first aspect.

[0036] In this application, the central controller of the remote testing equipment is wired to the motherboard of the display device under test, and the processing device of the remote testing equipment is remotely connected to a remote device. The central controller is connected to the processing device. When the display device motherboard plays the corresponding video signal based on the radio frequency signal, it transmits the video signal to the central controller. The central controller then transmits the video signal to the processing device in real time. The processing device then remotely transmits the video signal to the remote device, which plays the received video signal in real time. Because the video signal played by the display device motherboard is transmitted to the remote device via signal lines and network, the video signal emitted by the display device motherboard can be transmitted to the remote device quickly, achieving low-latency playback of the video signal by the remote device. This avoids the need for personnel to travel to the area where the display device motherboard is used to record the video stream and manually bring it back, simplifying the recording and transmission of the video stream. When the remote device plays the video signal, the test personnel at the remote device end can confirm the effect of the display device motherboard playing the video signal based on the playback content of the remote device, realizing remote testing of the radio frequency signal processing function of the display device motherboard, effectively improving the development and testing efficiency of the display device motherboard. The video streams required for testing display device motherboards no longer need to be recorded and brought back manually from the usage area, effectively reducing the labor costs required for testing and developing display device motherboards. Attached Figure Description

[0037] Figure 1This is a schematic diagram of the structure of a remote testing device provided in an embodiment of this application;

[0038] Figure 2 This is a schematic diagram showing the connection between the remote testing device and the motherboard of the display device provided in an embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the internal space of the remote testing device provided in the embodiments of this application;

[0040] Figure 4 This is a schematic diagram of the external structure of the remote testing device provided in the embodiments of this application;

[0041] In the diagram, 10 is the remote testing device; 11 is the central controller; 12 is the processing device; 13 is the video converter; 14 is the stream card; 15 is the mounting plate; 16 is the heat sink; 17 is the network cable interface; 18 is the power interface; 19 is the RF cable interface; 20 is the display device motherboard; and 30 is the remote device. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. It should also be noted that, for ease of description, only the parts relevant to this application are shown in the drawings, not all of them. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. A process can be terminated when its operation is completed, but it may also have additional steps not included in the drawings. A process can correspond to a method, function, procedure, subroutine, subroutine, etc.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] In a common existing implementation, developers develop the display device motherboard in region B, which is then used in region A. The developers need to test whether the display device motherboard supports playback of radio frequency (RF) signals from region A. They travel to region A to set up a signal acquisition platform to record the video stream carried by the RF signals from region A. Due to the large amount of data in the video stream, the developers copy the recorded video stream to a hard drive and bring the hard drive back to region B. Upon returning to region B, they use specialized testing equipment to test the display device motherboard's ability to play the video stream from the hard drive and adjust the television system based on the playback results. Therefore, each time the display device motherboard's ability to play RF signal video streams is tested, developers must travel to the region where the television system is used to record the corresponding video stream, and then bring it back to the development region for on-site testing of the television system. This entire video stream recording and transmission process is time-consuming and complex, making it impossible to achieve low-latency playback of the video stream and impacting the development and testing efficiency of the display device motherboard. The display device motherboard is the motherboard of a device with display capabilities, such as the motherboard of a television or computer monitor.

[0045] To address the aforementioned issues, this embodiment provides a remote testing device that uses a central controller and processing equipment to remotely transmit video signals from the display device motherboard, played via radio frequency signals, to a remote device for synchronous playback. This enables remote testing of the display device motherboard and low-latency playback of the video stream. It eliminates the need for personnel to travel to the area where the display device motherboard is used to record the video stream and manually retrieve it, simplifying the recording and transmission processes. This improves the development and testing efficiency of the display device motherboard and reduces the labor costs required for its testing and development.

[0046] Figure 1 A schematic diagram of the structure of a remote testing device 10 provided in an embodiment of this application is given. For example... Figure 1 As shown, the remote testing device 10 includes a central controller 11 and a processing device 12. The central controller 11 is connected to the processing device 12. The central controller 11 is used for wired connection to the motherboard 20 of the display device under test, and the processing device 12 is used for remote connection to a remote device 30. Specifically, the central controller 11 is used to acquire the video signal played by the motherboard 20 of the display device based on radio frequency signals in real time and transmit the video signal to the processing device 12; the processing device 12 is used to remotely transmit the video signal to the remote device 30 so that the remote device 30 can test the video signal. The processing device 12 can be a computer or other device with video signal processing capabilities.

[0047] For example, suppose the display device motherboard 20 is used in region A, and its development takes place in region B. Then, the remote device 30 is deployed in region B, while the remote testing device 10 and the display device motherboard 20 are deployed in region A. The RF signal port of the display device motherboard 20 connects to an RF signal line laid in region A. The RF signal line transmits the RF signal from region A to the display device motherboard 20 through the RF signal port. After receiving the RF signal from region A, the display device motherboard 20 decodes it to obtain the corresponding video signal and plays it. While playing the video signal, the display device motherboard 20 also transmits the video signal via wired connection to the central controller 11. The central controller 11 then transmits the received video signal via wired connection to the processing device 12. The processing device 12 is connected to a network cable or wireless network. After powering on, the processing device 12 establishes a remote communication connection with the remote device 30 through the network. After receiving the video signal, the processing device 12 can remotely transmit the video signal to the remote device 30 through the remote communication connection. After receiving the video signal, remote device 30 plays it. Personnel in region B, based on the content played by remote device 30, confirm the effectiveness of the display device motherboard 20 in playing the video stream carried by the RF signal from region A. Based on the playback effect, they debug the same batch of display device motherboards 20 under development or testing in region B. This achieves remote testing of the RF signal processing function of the display device motherboard 20, improving the development and testing efficiency of the display device motherboard 20. Furthermore, the video signal played by the display device motherboard 20 is transmitted to remote device 30 via signal cable and network, allowing for rapid transmission and low-latency playback by the remote device 30. This eliminates the need for personnel to travel to the region where the display device motherboard 20 is used to record the video stream and manually bring it back, simplifying the recording and transmission operations and further improving the development and testing efficiency of the display device motherboard 20.

[0048] It should be noted that different regions may use different radio frequency signal standards, such as DVBT, ISDB-T, ATSC, etc.

[0049] After the video signal played by the display device motherboard 20 is remotely transmitted to the processing device 12, in addition to the staff being able to debug the display device motherboards of the same batch based on the video signal played by the processing device 12, the processing device 12 can also automatically analyze the signal parameters and video format of the video signal, determine the debugging strategy for the display device motherboards of the same batch based on the signal parameters and video format, and then the staff can debug the display device motherboards of the same batch according to the debugging strategy.

[0050] In one embodiment, Figure 2 This is a schematic diagram showing the connection between the remote testing device 10 and the display device motherboard 20 provided in this embodiment of the application. Figure 2 As shown, the remote testing device 10 also includes a video converter 13, which is connected to the central controller 11 and the display device motherboard 20. The display device motherboard 20 is used to convert radio frequency signals into video signals and transmit the video signals to the video converter 13. The video converter 13 is used to receive the video signals transmitted from the display device motherboard 20, convert the video signals into HDMI signals, and transmit the HDMI signals to the central controller 11. The central controller 11 is used to convert the HDMI signals into USB video signals and transmit the USB video signals to the processing device 12.

[0051] For example, the display device motherboard 20 is connected to the input of the video converter 13 via a high-definition screen cable, and the output of the video converter 13 is connected to the central controller 11 via an HDMI (High-Definition Multimedia Interface) signal cable. After receiving the radio frequency signal transmitted via the radio frequency signal cable, the display device motherboard 20 decodes the radio frequency signal to obtain a video signal. The video signal decoded by the display device motherboard 20 is either an LVDS (Low-Voltage Differential Signaling) signal or a VBO (V-by-One) signal. Then, the display device motherboard 20 transmits the LVDS signal or VBO signal to the video converter 13 via the high-definition screen cable. The video converter 13 converts the LVDS signal or VBO signal into an HDMI signal and transmits the HDMI signal to the central controller 11 via an HDMI signal cable. The processing device 12 is connected via a USB (Universal Serial Bus) cable, and the central controller 11 is equipped with a microcontroller (MCU). After receiving an HDMI signal, the microcontroller at the central controller 11 converts the HDMI signal to a USB video signal (UVC, USB Video Class) and transmits the USB video signal to the processing device 12 via a USB cable. In this embodiment, the video converter 13 converts the LVDS or VBO signal transmitted from the display device motherboard 20 into an HDMI signal and transmits the HDMI signal to the central controller 11. The central controller 11 then converts the HDMI signal into a USB video signal and transmits the video signal to the processing device 12, thus achieving reliable transmission of the video signal from the display device motherboard 20 to the processing device 12.

[0052] In addition to carrying video signals, radio frequency (RF) signals also carry audio signals. The display device motherboard 20 plays video signals through the display screen and audio signals through the speakers. To test the function of the display device motherboard 20 in playing the audio signals corresponding to the RF signals, the central controller 11 and processing device 12 can acquire the audio signals corresponding to the RF signals played by the display device motherboard 20, and remotely transmit the audio signals to the remote device 30 for playback, so that the personnel at the remote device 30 can confirm the effect of the display device motherboard 20 playing the audio signals corresponding to the RF signals.

[0053] Optional, see reference Figure 2 The audio cable of the display device motherboard 20 is connected to the central controller 11. The display device motherboard 20 is used to convert radio frequency signals into audio signals and transmit the audio signals to the central controller 11 via the audio cable. The central controller 11 is used to convert the audio signals into USB audio signals and transmit the USB audio signals to the processing device 12. For example, the headphone audio cable or speaker audio cable of the display device motherboard 20 is connected to the central controller 11. After receiving the radio frequency signal transmitted via the radio frequency signal cable, the display device motherboard 20 decodes the radio frequency signal to obtain an audio signal and transmits the audio signal to the central controller 11 via the headphone audio cable or speaker audio cable. The central controller 11 converts the audio signal into a USB audio signal (UAC, USB Audio Class) via a microcontroller and transmits the USB audio signal to the processing device 12 via a USB cable. In this embodiment, the central controller 11 obtains the audio signal played by the display device motherboard 20, converts the audio signal into a USB audio signal, and transmits the USB audio signal to the processing device 12, thus achieving reliable transmission of the audio signal from the display device motherboard 20 to the processing device 12.

[0054] Furthermore, the processing device 12 is also used to generate a network audio and video stream based on the USB video signal and the USB audio signal, and remotely transmit the network audio and video stream to the remote device 30 so that the remote device 30 can play the network audio and video stream in real time. For example, after receiving the USB video signal transmitted by the central controller 11 via a USB cable, the processing device 12 converts the USB video signal into an H.264 format video stream. After receiving the USB audio signal transmitted by the central controller 11 via a USB cable, the processing device 12 converts the USB audio signal into an Opus format audio stream. Based on the timestamps of the video and audio streams, the video and audio streams are encoded into a network audio and video stream. Then, through a pre-established remote communication connection with the remote device 30, the network audio and video stream is remotely transmitted to the remote device 30, and the remote device 30, upon receiving the network audio and video stream, decodes and plays it. In this embodiment, the processing device 12 generates a network audio and video stream from the USB video signal and the USB audio signal, and remotely transmits the network audio and video stream to the remote device 30 so that the staff at the remote device 30 can confirm the function of the display device motherboard 20 in playing the audio and video corresponding to the radio frequency signal. This realizes low-latency playback of the audio and video stream corresponding to the radio frequency signal and improves the development and testing efficiency of the display device motherboard 20.

[0055] It should be noted that when the remote testing device 10 and the display device motherboard 20 are located in region A and the remote device 30 is located in region B, respectively, if region A and region B are located in different countries, then the remote testing device 10 needs to be placed in a wide area network environment so that the processing device 12 can establish a remote communication connection with the remote device 30 through the wide area network.

[0056] When processing device 12 establishes a remote communication connection with remote device 30 via a wide area network (WAN), the reliability of this connection is easily affected by external factors and can be disrupted. When the connection is broken, real-time video signal transmission between processing device 12 and remote device 30 is impossible, preventing personnel at the remote device 30 from testing the function of the display device motherboard 20 in playing the video signal corresponding to the radio frequency signal, thus hindering the normal progress of testing. To address this, a stream card 14 can be installed in the remote testing device 10 to record the video stream corresponding to the radio frequency signal. This video stream can then be stored in the cloud, allowing the remote device 30 to download and play it, reducing the remote testing device 10's dependence on the WAN.

[0057] Optional, see reference Figure 2The remote testing device 10 also includes a stream card 14, which is used to connect to the radio frequency (RF) signal line and the processing device 12. The stream card 14 is used to convert the RF signal transmitted through the RF signal line into a video stream, record the video stream to obtain a corresponding video file, and transmit the video file to the processing device 12. The processing device 12 is used to upload the video file to a file server so that the remote device 30 can download the video file from the file server. For example, the stream card 14 is connected to the display device motherboard 20 via the same RF signal line, and the video stream recorded by the stream card 14 is the audio and video played by the display device motherboard 20 based on the RF signal. After receiving the RF signal transmitted through the RF signal line, the stream card 14 decodes the RF signal to obtain video and audio signals, encodes the video and audio signals into a video stream, and records the video stream to generate a corresponding video file. The streaming card 14 is connected to the processing device 12 via a USB cable. The streaming card 14 transmits the recorded video file to the processing device 12 via the USB cable, and the processing device 12 uploads the video file to a file server. The remote device 30 can download the video file from the file server and play the video stream within it. In this embodiment, the streaming card 14 records the video stream corresponding to the radio frequency signal to generate a video file. The processing device 12 stores the video file on a cloud file server. When the network is smooth, the remote device 30 can download the video file from the file server and play the video stream. This allows personnel at the remote device 30 to verify the effect of the display device motherboard 20 playing the video stream based on the content played by the remote device 30. This enables remote testing of the radio frequency signal processing function of the display device motherboard 20, ensuring that the testing of the display device motherboard 20 can proceed normally even in a poor wide area network environment, thus improving the development and testing efficiency of the display device motherboard 20.

[0058] It should be noted that the file server can store video files for a long time. When testing the function of different display device motherboards 20 playing video streams of radio frequency signals from the same region, the same video file can be used to test multiple display device motherboards 20, realizing the reuse of video files, further simplifying the operation of testing display device motherboards 20, and effectively improving the development and testing efficiency of display device motherboards 20.

[0059] In one embodiment, the display device motherboard 20, in addition to playing the video stream corresponding to the radio frequency signal, also has the function of responding to corresponding button control commands or infrared control commands. The button control commands are triggered by buttons corresponding to those on the display device motherboard 20, while the infrared control commands are triggered by an infrared remote control. For example, when a user wants to adjust the volume or brightness of the television, they can trigger the corresponding volume adjustment command or brightness adjustment command via a button or infrared remote control. The display device motherboard 20, in response to the volume adjustment command or brightness adjustment command, adjusts the volume of the audio playback or the brightness of the video playback accordingly.

[0060] To test whether the display device motherboard 20 responds to button control commands correctly, a button control pin can be configured on the central controller 11 to send button control commands to the display device motherboard 20. The response of the display device motherboard 20 to the button control commands can then be used to confirm whether the display device motherboard 20's response to the button control commands is normal. Optionally, refer to... Figure 2The central controller 11 includes button control pins, which are connected to the display device motherboard 20. These button control pins are used to send level signals to the display device motherboard 20, causing the motherboard to execute corresponding button control operations based on the level signals. For example, the button control pins are I / O pins of the microcontroller of the central controller 11. Each I / O pin of the microcontroller is connected to a corresponding button pin of the display device motherboard 20. The TV host's button pins include volume button pins, channel switching pins, and brightness button pins, etc. Correspondingly, the TV host's volume button pins, channel switching pins, and brightness button pins are respectively connected to the microcontroller's volume button control pins, channel switching control pins, and brightness button control pins. The microcontroller can control different button control pins to send high-level or low-level signals according to different button control commands. After receiving a high-level or low-level signal through the corresponding button pin, the display device motherboard 20 confirms receipt of the corresponding button control command and executes the corresponding button control operation in response. For example, the microcontroller can control the volume button control pin to output a high-level signal or a low-level signal according to the volume adjustment command. After receiving the high-level signal or low-level signal transmitted by the volume button pin, the display device motherboard 20 confirms receipt of the volume adjustment command and adjusts the volume of the played audio accordingly. After the display device motherboard 20 lowers the volume of the played audio, the volume of the audio signal transmitted to the processing device 12 will also decrease, causing the volume of the audio played by the remote device 30 to also decrease. The staff at the remote device 30 can confirm whether the volume adjustment function of the display device motherboard 20 is normal based on the audio volume played by the remote device 30. Based on this, this embodiment can physically control the display device motherboard 20 through the button control pin set in the central controller 11, realizing remote testing of the display device motherboard 20's response to button control commands, and improving the development and testing efficiency of the display device motherboard 20.

[0061] To test whether the display device motherboard 20 functions properly in responding to infrared control commands, the central controller 11 can be configured with an infrared control pin to send infrared control commands to the display device motherboard 20. The response of the display device motherboard 20 to the infrared control commands can then be used to confirm whether its function is normal. Optionally, refer to... Figure 2The central controller 11 includes an infrared control pin, which is connected to the display device motherboard 20. The infrared control pin is used to send infrared waveform signals to the display device motherboard 20, enabling the motherboard to perform corresponding infrared control operations based on the infrared waveform signals. For example, the infrared control pin is an I / O pin of the microcontroller of the central controller 11, and is connected to the infrared receiving pin of the display device motherboard 20. The microcontroller can generate different infrared waveform signals according to different infrared control commands, and transmit the currently generated infrared waveform signals to the infrared receiving pin of the display device motherboard 20 through the infrared control pin. After receiving the infrared waveform signals through the infrared receiving pin, the display device motherboard 20 parses the infrared waveform signals to determine the infrared control commands sent by the microcontroller, and performs the corresponding infrared control operations. For example, the microcontroller can generate corresponding infrared waveform signals according to brightness adjustment commands, and transmit the infrared waveform signals to the infrared receiving pin of the display device motherboard 20 through the infrared control pin. The display device motherboard 20 parses the brightness adjustment commands based on the infrared waveform signals received by the infrared receiving pin and adjusts the brightness of the playing video in response to the brightness adjustment commands. After the display device motherboard 20 lowers the brightness of the video being played, the brightness of the video signal transmitted to the processing device 12 also decreases, causing the brightness of the video played on the remote device 30 to decrease accordingly. Personnel at the remote device 30 can then confirm whether the brightness adjustment function of the display device motherboard 20 is functioning correctly based on the brightness of the video played on the remote device 30. Therefore, this embodiment can physically control the display device motherboard 20 through the infrared control pins set in the central controller 11, realizing remote testing of the display device motherboard 20's response to infrared control commands and improving the development and testing efficiency of the display device motherboard 20.

[0062] Further reference Figure 2 The central controller 11 includes a power pin connected to the display device motherboard 20. The power pin is used to control the power-on and power-off of the display device motherboard 20. For example, the central controller 11 can supply power to the television host via the power pin. The central controller 11 controls the power pin to output 12V and stop outputting the voltage. When the power pin outputs 12V, the display device motherboard 20 is powered on; when the power pin stops outputting the voltage, the display device motherboard 20 is powered off. In this embodiment, the power on / off of the display device motherboard 20 can be controlled via the power pin of the central controller 11, eliminating the need for on-site personnel to manually power on / off the display device motherboard 20, thus improving the autonomy of testing.

[0063] To reduce the reliance of remote testing equipment 10 and display device motherboard 20 on on-site personnel during testing, personnel at the remote device 30 can control the power on / off of display device motherboard 20 and respond to various control commands through remote device 30 and remote testing equipment 10. For example, after remote testing equipment 10 is powered on, remote device 30 first establishes a remote communication connection with processing equipment 12. Then, remote device 30 sends a TV power-on command to processing equipment 12 through the remote communication connection. Processing equipment 12 forwards the TV power-on command to central controller 11. Central controller 11 controls the power pin to output 12V voltage to display device motherboard 20. After receiving power, display device motherboard 20 starts up and then receives the radio frequency signal transmitted by the radio frequency signal line. Based on the radio frequency signal, it plays the video signal and sends the video signal back to remote device 30 for playback through central controller 11 and processing equipment 12. Remote device 30 can send button control commands to processing device 12 via a remote communication connection. Processing device 12 forwards the button control commands to central controller 11. Central controller 11 controls the corresponding button control pin to output a high-level signal or a low-level signal according to the button control command. After receiving the high-level signal or low-level signal, the corresponding button pin of display device motherboard 20 confirms the received button control command and executes the corresponding button control operation, thus realizing remote button control of display device motherboard 20. Remote device 30 can also send infrared control commands to processing device 12 via a remote communication connection. Processing device 12 forwards the infrared control commands to central controller 11. Central controller 11 generates a corresponding infrared waveform signal according to the infrared control command and outputs the infrared waveform signal through infrared control pin. After receiving the infrared waveform signal through infrared receiving pin, display device motherboard 20 confirms the received infrared control command according to the infrared waveform signal and executes the corresponding infrared control operation, thus realizing remote infrared control of display device motherboard 20. After the test is completed, the remote device 30 can send a TV shutdown command to the processing device 12. The processing device 12 forwards the TV shutdown command to the central controller 11. The central controller 11 controls the power pin to stop outputting power, and the display device motherboard 20 shuts down after losing power.

[0064] Of course, in addition to remotely controlling the power on / off of the display device motherboard 20 and responding to various control commands via the remote device 30, a test program can also be pre-installed on the processing device 12. When the processing device 12 runs the test program, it automatically sends a TV power-on command, a button control command, an infrared control command, and a TV power-off command to the central controller 11. The central controller 11 then controls the power on / off of the display device motherboard 20 and responds to the button control command and infrared control command based on the TV power-on command, button control command, infrared control command, and TV power-off command, further reducing the reliance on manual intervention.

[0065] In one embodiment, since the remote test device 10 and the display device motherboard 20 are deployed in the same area, space can be provided in the remote test device 10 to accommodate the display device motherboard 20, thereby achieving an integrated design of the remote test device 10 and the display device motherboard 20. Optionally, the remote test device 10 includes three accommodating spaces arranged side by side, which are respectively used to place the processing device 12, the central controller 11, and the display device motherboard 20, with the central controller 11 placed in the middle accommodating space. For example, Figure 3 This is a schematic diagram of the internal space of the remote testing device provided in an embodiment of this application. For example... Figure 3 As shown, the remote testing device 10 has a mounting plate 15 inside, which is located in the middle accommodating space of the remote testing device 10. The left and right spaces of the mounting plate 15 correspond to the other two accommodating spaces of the remote testing device 10. The left space is used to house the display device motherboard 20, and the right space is used to house the processing device 12. The central controller 11 is mounted on the mounting plate 15. When testing the display device motherboard 20 using the remote testing device 10, the display device motherboard 20 is placed in the left space and connected to the central controller 11 on the mounting plate 15. The processing device 12 is placed in the right space. When replacing or maintaining the processing device 12 or the display device motherboard 20, the accommodating spaces on both sides of the remote testing device 10 can be opened directly to replace or maintain the processing device 12 or the display device motherboard 20. This embodiment integrates the processing device 12, central controller 11, and display device motherboard 20 by designing the internal structure of the remote testing device 10 into three parallel storage spaces. This reduces the use of wiring and lowers costs. Placing the central controller 11 in the middle storage space allows for easy replacement or maintenance of the outer processing device 12 or display device motherboard 20, improving the efficiency of replacement and maintenance.

[0066] Optionally, to facilitate staff to carry the remote testing device 10 to various regions to collect the video streams corresponding to the radio frequency signals of each region, the remote testing device 10 can be designed as an integrated enclosure.

[0067] Furthermore, Figure 4 This is a schematic diagram of the external structure of the remote testing device 10 provided in this application embodiment. For example... Figure 4The remote testing device 10 is equipped with two heat sinks 16 on its top to dissipate heat from the internally installed processing device 12, central controller 11, and display device motherboard 20, preventing them from overheating and malfunctioning during operation. The side of the remote testing device 10 has a network cable interface 17, a power interface 18, and an RF cable interface 19. The network cable interface 17 connects to the processing device 12 and the display device motherboard 20, the power interface 18 connects to the processing device 12 and the central controller 11, and the RF cable interface 19 connects to the display device motherboard 20. The remote testing device 10 can be used normally after connecting a network cable through the network cable interface 17, a power supply through the power interface 18, and an RF signal cable through the RF cable interface 19.

[0068] The processing device 12 installed on the remote testing device 10 can be a card-type computer, thereby reducing the space and weight of the remote testing device 10 and lowering the implementation cost.

[0069] The central controller 11 can be expanded with multiple hardware ports, which can be connected to multiple display device motherboards 20, thereby enabling simultaneous testing of multiple display device motherboards 20.

[0070] In summary, the remote testing device 10 provided in this application embodiment is wired to the display device motherboard 20 under test via a central controller 11, and remotely connected to a remote device 30 via a processing device 12 of the remote testing device 10. The central controller 11 is connected to the processing device 12. When the display device motherboard 20 plays the corresponding video signal based on the radio frequency signal, it transmits the video signal to the central controller 11. The central controller 11 transmits the video signal to the processing device 12 in real time, and the processing device 12 remotely transmits the video signal to the remote device 30. The remote device 30 plays the received video signal in real time. Since the video signal played by the display device motherboard 20 is transmitted to the remote device 30 via a signal line and network, the video signal emitted by the display device motherboard 20 can be quickly transmitted to the remote device 30, realizing low-latency playback of the video signal by the remote device 30. This avoids the need for staff to go to the area where the display device motherboard 20 is used to record the video stream and manually bring it back, simplifying the recording and transmission of the video stream. When the remote device 30 plays a video signal, the test personnel at the remote device 30 can verify the effect of the video signal playback on the display device motherboard 20 based on the playback content of the remote device 30. This enables remote testing of the radio frequency signal processing function of the display device motherboard 20, effectively improving the development and testing efficiency of the display device motherboard 20. The video stream required for testing the display device motherboard 20 does not need to be recorded and brought back manually from the usage area, effectively reducing the labor costs required for testing and developing the display device motherboard 20.

[0071] Based on the above embodiments, this application also provides a remote testing system, which includes a remote device 30 and a remote testing device 10 described in the above embodiments. The remote device 30 is remotely connected to the processing device 12 of the remote testing device 10, and the central controller 11 of the remote testing device 10 is wiredly connected to the display device motherboard 20 to be tested. When the display device motherboard 20 plays a corresponding video signal based on a radio frequency signal transmitted via a radio frequency signal line, the central controller 11 acquires the video signal and transmits it to the processing device 12. The processing device 12 then remotely transmits the video signal to the remote device 30, which plays the video signal. This allows personnel at the remote device 30 to confirm whether the display device motherboard 20's radio frequency signal processing function is normal based on the effect of the video signal played by the remote device 30, thus realizing remote testing of the display device motherboard 20 and improving the development and testing efficiency of the display device motherboard 20.

[0072] The above description is merely a preferred embodiment and the technical principles employed in this application. This application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions that can be made by those skilled in the art will not depart from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application. The scope of this application is determined by the scope of the claims.

Claims

1. A remote test equipment, characterized by, The remote test device comprises a center controller and a processing device, the center controller is connected with the processing device, the center controller is used for connecting a display device mainboard to be tested by wire, and the processing device is used for connecting a remote device, wherein: The center controller is used for acquiring a video signal played by the display device mainboard based on a local radio frequency signal, and transmitting the video signal to the processing device; The processing device is used for remotely transmitting the video signal to the remote device, so that the remote device tests the video signal.

2. The remote test device of claim 1, wherein, The remote test device further comprises a code stream card, the code stream card is used for connecting the radio frequency signal line, and the code stream card is connected with the processing device, wherein: The code stream card is used for converting a radio frequency signal transmitted by the radio frequency signal line into a video code stream, recording the video code stream to obtain a corresponding video file, and transmitting the video file to the processing device; The processing device is used for uploading the video file to a file server, so that the remote device downloads the video file on the file server.

3. The remote test device of claim 1, wherein, The remote test device further comprises a video converter, the video converter is connected with the center controller and the display device mainboard, wherein: The display device mainboard is used for converting a radio frequency signal into a video signal, and transmitting the video signal to the video converter; The video converter is used for receiving the video signal transmitted by the display device mainboard, converting the video signal into an HDMI signal, and transmitting the HDMI signal to the center controller; The center controller is used for converting the HDMI signal into a USB video signal, and transmitting the USB video signal to the processing device.

4. The remote test device of claim 3, wherein, An audio line of the display device mainboard is connected with the center controller, wherein: The display device mainboard is used for converting a radio frequency signal into an audio signal, and transmitting the audio signal to the center controller through the audio line; The center controller is used for converting the audio signal into a USB audio signal, and transmitting the USB audio signal to the processing device.

5. The remote test device of claim 4, wherein, The processing device is used for generating a network audio and video stream according to the USB video signal and the USB audio signal, and remotely transmitting the network audio and video stream to the remote device, so that the remote device tests the network audio and video stream.

6. The remote test device of claim 1, wherein, The center controller comprises a key control pin, the key control pin is connected with the display device mainboard, wherein: The key control pin is used for sending a level signal to the display device mainboard, so that the display device mainboard performs a corresponding key control operation based on the level signal.

7. The remote test device of claim 1, wherein, The center controller comprises an infrared control pin, the infrared control pin is connected with the display device mainboard, wherein: The infrared control pin is used for sending an infrared waveform signal to the display device mainboard, so that the display device mainboard performs a corresponding infrared control operation based on the infrared waveform signal.

8. The remote test device of claim 1, wherein, The center controller comprises a power supply pin, the power supply pin is connected with the display device mainboard, wherein: The power pin is used for controlling power-on and power-off of the display device mainboard.

9. The remote test device of claim 1, wherein, The remote test device comprises three parallelly arranged accommodating spaces, and the processing device, the central controller and the display device mainboard are respectively placed in the three accommodating spaces.

10. A remote testing system, characterized by The remote test device comprises a remote device and a remote test device as claimed in any one of claims 1-9.

Images