A method and system for testing a set-top box PCBA panel combination

Abstract

The application discloses a kind of set top box PCBA panel combination test method and system, its system includes the detection device for detecting the basic information of set top box PCBA panel to be tested, audio and video and mark position instruction, the processing module for sending power-on instruction and burning SN data number and detecting the test signal sent by the panel to be tested, the control module for receiving power-on instruction and controlling the power-on of the panel to be tested, the acquisition module for acquiring the audio signal and image signal of the panel to be tested, the test module for acquiring basic information and executing basic information test and audio and video test, the display panel for splitting screen to display SN data number, detection item and prompting test failure or test success, the code stream module for distributing MPEG2 format audio and video to each panel to be tested by code stream communication protocol;The application can distribute the audio and video and SN data number of multiple panels to be tested, and simultaneously parallel test the basic information and audio and video of the panel to be tested, finally split screen to display test result.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of PCBA testing, in particular to a set-top box PCBA panel merging test method and system. BACKGROUND

[0002] With the development of set-top box technology, the design of set-top box circuit is becoming more and more complex. Before the set-top box is shipped, the set-top box PCBA needs to be tested. The existing technology generally tests the PCBA single board on the first test host for basic signal test and filters the test failed single board. The single board that passes the test is tested for audio and video source signal input one by one. After the input is successful, the PCBA single board needs to be plugged in again on the second test host for audio and video test. The image test in the audio and video test adopts a histogram gray scale test method. There are technical problems such as high equipment cost, non-centralized test, and complicated line plugging. Moreover, the histogram gray scale test has low precision and long test period. When the test period is shortened, the tester usually reduces the test items of the basic signal test, thereby reducing the test standard of the PCBA single board. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the present application provides a set-top box PCBA panel merging test method and system, which aims to solve the technical problems of high equipment cost, non-centralized test, complicated line plugging, and low test standard in the set-top box PCBA test, so as to achieve the purposes of low equipment cost, centralized test, simple and convenient line plugging, and high test standard.

[0004] To solve the above problems, the technical scheme adopted by the present application is as follows:

[0005] A set-top box PCBA panel merging test method, comprising the following steps:

[0006] A detection device and a test host are provided. The detection device is used to install a set-top box PCBA panel to be tested, and the test host is used to judge the panel state. The set-top box PCBA panel to be tested includes a plurality of set-top box PCBA boards to be tested. A plurality of probes of the detection device are connected to the plurality of set-top box PCBA boards to be tested.

[0007] The test host confirms that the panel state is normal, and sends a power-on instruction to control the power-on of the panel to be tested.

[0008] The test host burns SN data number to the panel to be tested in sequence according to a plurality of mark instructions sent by the panel to be tested. The mark instruction and the SN data number correspond to each panel to be tested one by one.

[0009] The test host detects the test signal sent by the to-be-tested panel, determines that the to-be-tested panel enters the test mode, and performs basic signal test and audio and video signal test;

[0010] When performing the basic signal test, the to-be-tested panel sends a to-be-tested signal according to a set basic signal test item table, the test host judges whether the basic signal conforms to the range of a set standard signal and outputs a basic signal judgment result; when the basic signal judgment result is test failure, the test host stops the test and feeds back an SN data number and a basic signal test item number; when the basic signal judgment result is test success, the test host performs the audio and video signal test;

[0011] When performing the audio and video signal test, the to-be-tested panel sends an audio signal and an image signal to the test host;

[0012] When the test host performs the audio signal test, it judges whether the volume of the audio signal is in a set volume threshold range and outputs an audio signal judgment result; when the audio signal judgment result is test failure, the test host stops the test and feeds back an SN data number and an audio signal test failure prompt; when the audio signal judgment result is test success, the test host performs the image signal test;

[0013] When the test host performs the image signal test, it calculates the number of pixels in the image signal that conform to a standard image RGB, judges whether the number of pixels is in a set percentage range and outputs an image signal judgment result; when the image signal judgment result is test failure, the test host stops the test and feeds back an SN data number and an image signal test failure prompt; when the image signal judgment result is test success, the test host feeds back an SN data number and a test success prompt.

[0014] Before detecting the to-be-tested panel, the audio and video source signals are distributed to each to-be-tested panel by power.

[0015] Further, when the test host performs the basic signal test, it performs the test on the to-be-tested panel according to a basic signal test item table:

[0016] The software test instruction is sent to the to-be-tested panel, the software version and the firmware version are read and it is confirmed that they conform to a set version number, and the reading function of the SN data number is tested to be normal;

[0017] The voltage test instruction is sent to the to-be-tested panel, the voltage values of the 13V voltage signal and the 18V voltage signal of the LNB circuit are tested to conform to a set voltage range, and it is judged that the voltage switching function of the 13V voltage signal and the 18V voltage signal is normal;

[0018] Send frequency test instruction to the test board, test the LNB circuit 22K frequency signal amplitude meets the set amplitude range;

[0019] Send infrared test instruction to the test board, read the infrared key value feedback by the test board, and judge whether the infrared key value meets the set infrared standard value;

[0020] Send USB test instruction to the test board, read the USB function normal quantity value feedback by the test board, and judge whether the quantity value meets the set USB standard value.

[0021] Send WIFI test instruction to the test board, judge whether the WIFI signal strength meets the set strength range value.

[0022] Further, when the test host executes WIFI test, it sends WIFI test instruction to the test board, wherein the test instruction includes SSID name; the test board receives WIFI test instruction and connects the SSID, and then feeds back the strength of the SSID; the test host judges whether the SSID strength meets the set SSID strength range value of standard information.

[0023] A set top box PCBA test system, comprising a detection device, a test host and a control module; the test host comprises a collection module, a processing module and a test module;

[0024] The detection device is used to install the set top box PCBA test board, connect the test points of a plurality of set top box PCBA test boards through probes, detect the basic signal test, audio and video signal and mark instruction of the test board and send them to the test host;

[0025] The control module is used to receive power-on instruction and control the power-on of the test board;

[0026] The collection module is connected with the detection device through AV data line or HDMI data line, used to collect audio signal and image signal of the test board and send them to the test module;

[0027] The test module is connected with the detection device and the processing module through serial data line, and connected with the collection module through PCI line, used to burn SN data number, detect test signal, collect basic signal, and execute basic signal test and audio and video signal test;

[0028] The processing module is used to send power-on instruction and buffer 13V voltage signal, 18V voltage signal, 22K frequency signal and infrared key value.

[0029] Further, the system comprises a display module, and the display module comprises a split screen unit and a display panel;

[0030] The split-screen unit is connected to the test host through an HDMI data line, for receiving the SN data number and detection items of the to-be-tested panel fed back by the test host, and sending to the display panel in split screen mode;

[0031] The display panel is used for displaying the SN data number, detection items, and prompting test failure or test success in split screen mode.

[0032] Further, the system comprises a code stream module, which is used for distributing the audio and video source signals in MPEG2 format to each to-be-tested panel through a code stream communication protocol, and comprises a code stream card, a code stream host, and a power distribution unit.

[0033] The code stream card is installed in the code stream host, and is used for collecting the audio and video source signals in MPEG2 format of the code stream host, and sending to the power distribution unit.

[0034] The power distribution unit is used for power distribution of the audio and video source signals in MPEG2 format, and sending to each to-be-tested panel in the to-be-tested panel.

[0035] Further, the code stream module further comprises an LNB module, which is used for signal communication between the power distribution unit and the code stream card and the to-be-tested panel.

[0036] Further, the detection device comprises an alternating current switch, an air cylinder, a pressing plate, a probe, a tray, and a counter.

[0037] The alternating current switch is used for providing alternating current signals for normal operation of the detection device.

[0038] The air cylinder is connected to the top of the pressing plate, and the bottom of the pressing plate is connected to the probe.

[0039] The to-be-tested panel is placed on the tray, and is connected to the detection device through the probe.

[0040] The counter is used for counting the number of to-be-tested panels.

[0041] Further, the control module comprises a relay, an input end of the relay is connected to the processing module, and an output end of the relay is connected to the to-be-tested panel.

[0042] Compared with the prior art, the set-top box PCBA panel combination test method and system provided by the application have the beneficial effects that the set-top box PCBA panel combination test method and system provided by the application assemble multiple PCBA test boards into a test panel, integrate basic signal testing of the test boards, audio and video source signal inputting and audio and video signal testing, and adopt the technology of measuring the percentage of the pixel number of a standard image RGB in image signal testing, so that the device cost is low, the test steps are concentrated, the line plug is convenient, and the test standard is improved.

[0043] The application will be described in further detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0045] Figure 1 The step flow chart of the set-top box PCBA panel combination test method of the embodiments of the present application.

[0046] Figure 2 The system structure diagram of the set-top box PCBA panel combination test system of the embodiments of the present application.

[0047] Figure 3 The structure diagram of the detection device of the set-top box PCBA panel combination test system of the embodiments of the present application. DETAILED DESCRIPTION

[0048] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0049] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0050] A set-top box PCBA panel combination test method, comprising the following steps:

[0051] As Figure 1 shown, a detection device and a test host are provided, and the set-top box PCBA to be tested is installed in the detection device, wherein the set-top box PCBA to be tested includes a plurality of set-top box PCBA to be tested, and a plurality of probes of the detection device are connected with the plurality of set-top box PCBA to be tested.

[0052] The audio and video source signals are distributed to each to-be-tested board.

[0053] The test host judges the board state.

[0054] The test host confirms that the board state is normal, sends a power-on instruction to control the power-on of the to-be-tested board, and confirms that the board state is abnormal, and prompts that the board state is abnormal.

[0055] The to-be-tested board sends a plurality of marking instructions to the test host, and the test host burns SN data numbers to the to-be-tested board in sequence according to the marking instructions; wherein the marking instructions and the SN data numbers correspond to each to-be-tested board one by one.

[0056] The to-be-tested board sends a test signal to the test host; when the test host detects the test signal, it determines that the to-be-tested board enters the test mode and performs basic signal test and audio and video signal test; when the test host does not detect the test signal, it prompts that the to-be-tested board fails to send the test signal.

[0057] When the test host performs basic signal test and audio and video signal test on the to-be-tested board, if test failure occurs, the test host stops the test of the current to-be-tested board, and the remaining to-be-tested boards remain to be tested.

[0058] When performing basic signal test, the to-be-tested board sends basic signals according to the set basic signal test item table; the test host receives the basic signals, judges whether the basic signals conform to the range of the set standard signals and outputs the basic signal judgment result; when the basic signals do not conform to the range of the set standard signals, the basic signal judgment result is test failure, the test host stops the test, and feeds back the SN data number and the basic signal test item number; when the basic signals conform to the range of the set standard signals, the basic signal judgment result is test success, and the test host performs audio and video signal test.

[0059] When performing audio and video signal test, the to-be-tested board sends audio signals and image signals to the test host.

[0060] When the test host performs audio signal test, it judges whether the volume of the audio signal is within the set volume threshold range and outputs the audio signal judgment result; for example, if the volume threshold range of the left channel and the right channel is set to 85 to 100, when the volume of the test audio signal is within 85 to 100, it is judged as test success; when the volume of the test audio signal is not within 85 to 100, it is judged as test failure.

[0061] When the audio signal test result is a test failure, the test host stops the test and feeds back the SN data number and an audio signal test failure prompt; when the audio signal test result is a test success, the test host performs an image signal test.

[0062] When the test host performs the image signal test, the number of pixels in the image signal that meet the standard image RGB is calculated, it is judged whether the number of pixels is in the set percentage range and an image signal test result is output; if the image pixels are 720*576 and the set percentage range is 90% to 100%, the number of pixels in the image that meet the standard image RGB should be equal to or higher than 373248, and the test is judged to be successful; when the number of pixels in the image that meet the standard image RGB should be lower than 373248, the test is judged to be a failure.

[0063] When the image signal test result is a test failure, the test host stops the test and feeds back the SN data number and an image signal test failure prompt; when the image signal test result is a test success, the test host feeds back the SN data number, prompts the test success, and stops the current test and prepares for the next test.

[0064] Further, before the test host calculates the number of pixels in the image signal that meet the standard image RGB, it is detected whether the image signal is received; if the image signal is not received, it is judged that the AV data line or the HDMI data line interface is abnormal, and the image test is stopped; if the image signal is received, the test host continues to perform the image test.

[0065] Specifically, when the test host performs the basic signal test, the test host performs the test on the to-be-tested panel according to the basic signal test item table:

[0066] The software test instruction is sent to the to-be-tested panel, the software version and the firmware version are read and automatically compared with the set version number, and it is confirmed that the set version number is met; the SN data number reading function of the to-be-tested panel is tested to be normal.

[0067] The voltage test instruction is sent to the to-be-tested panel, the voltage values of the 13V voltage signal and the 18V voltage signal of the LNB circuit are tested to meet the set voltage range, and it is judged that the voltage switching function of the 13V voltage signal and the 18V voltage signal is normal.

[0068] The test frequency test instruction is sent to the to-be-tested board, and the amplitude of the 22K frequency signal of the LNB circuit is tested to see whether it meets the set amplitude range; wherein, the amplitude of the 22K frequency signal is set according to different load use conditions of the to-be-tested board, and the upper limit and the lower limit of the amplitude are set; for example, when the to-be-tested board is used under high load, the amplitude range of the 22K frequency signal is set to 850mV to 900mV; for example, when the to-be-tested board is used under low load, the amplitude range of the 22K frequency signal is set to 800mV to 850mV; when the to-be-tested board is loaded and the amplitude of the 22K frequency signal of the LNB circuit is within the corresponding amplitude range, the test is successful; when the to-be-tested board is loaded and the amplitude of the 22K frequency signal of the LNB circuit is not within the corresponding amplitude range, the test fails.

[0069] The infrared test instruction is sent to the to-be-tested board, the infrared key value fed back by the to-be-tested board is read, and it is judged whether the infrared key value meets the set infrared standard value.

[0070] The USB test instruction is sent to the to-be-tested board, the number value of the normal USB function fed back by the to-be-tested board is read, and it is judged whether the number value meets the set USB standard value.

[0071] The WIFI test instruction is sent to the to-be-tested board, and it is judged whether the WIFI signal strength meets the set strength range value.

[0072] Further, when the test host executes the WIFI test, the WIFI test instruction is sent to the to-be-tested board, wherein the test instruction includes the SSID name; the to-be-tested board receives the WIFI test instruction and connects the SSID, and then feeds back the strength of the SSID; the test host judges whether the SSID strength meets the SSID strength range value of the set standard information.

[0073] As shown in Figure 2 A set-top box PCBA board combination test system, comprising a detection device 1, a test host 2 and a control module 3.

[0074] The detection device 1 is used to install the set-top box PCBA to-be-tested board 6, connect the to-be-tested points of a plurality of set-top box PCBA to-be-tested boards 601 through probes, detect the basic signal test, audio and video signal and position instruction of the to-be-tested board 6 and send them to the test host 2; wherein, the set-top box PCBA to-be-tested board 6 is composed of a plurality of set-top box PCBA to-be-tested boards 601.

[0075] As shown in Figure 3 Specifically, the detection device 1 comprises an alternating current switch 101, an air cylinder 102, a gland plate 103, a probe 104, a tray 105, a counter 106, an air cylinder fixing plate 107 and an emergency stop switch 108.

[0076] The AC switch 101 provides the normal working AC signal for the detection device 1 and provides the up-and-down operation current for the cylinder.

[0077] The cylinder 102 is connected to the top of the gland plate 103, and the bottom of the gland plate 103 is connected to the probe 104.

[0078] The to-be-tested board 6 is placed on the tray 105 and connected to the detection device 1 through the probe 104.

[0079] The counter 106 is used to count the number of detections of the to-be-tested board 601.

[0080] The cylinder fixing plate 107 is connected to the cylinder 102 and used to fix the cylinder 102.

[0081] The emergency stop switch 108 is used to force the detection device 1 to stop the detection work.

[0082] When the test host 2 starts to test the to-be-tested board 6, the AC switch provides the operation current, the cylinder operates downward, the gland plate also operates downward, the probe contacts the to-be-tested point on the to-be-tested board 6, and then the detection device 1 detects the basic signal and the audio and video signals of the to-be-tested board 6 through the probe, and the detection device 1 also sends the position instruction of the to-be-tested board 6 to the test host 2.

[0083] Specifically, the test host 2 includes a collection module 201, a test module 202 and a processing module 203.

[0084] The collection module 201 is connected to the detection device 1 through the AV data line or the HDMI data line, connected to the test module 202 through the PCI data line, and used to collect the audio signal and the image signal of the to-be-tested board 6 and send them to the test module 202.

[0085] The test module 202 is connected to the detection device 1 and the processing module 203 through the serial data line, used to burn the SN data number, detect the test signal, collect the basic signal, and perform the basic signal test and the audio and video signal test.

[0086] The processing module 203 is connected to the detection device 1 through the serial data line, used to send the power-on instruction, and buffer the 13V voltage signal, the 18V voltage signal, the 22K frequency signal and the infrared key value.

[0087] The test module 202 collects the basic signals of the to-be-tested panel 6 through the serial data line, reads the 13V voltage signal, 18V voltage signal, 22K frequency signal and infrared key value buffered in the processing module 203 when performing the basic signal test, and performs the test; when performing the software test, USB test and WIFI test, the test module 202 directly reads the basic signals of the to-be-tested panel 6; when performing the audio and video signal test, the test module 202 reads the audio signal and image signal of the collection module 201 and performs the test.

[0088] Specifically, the control module 3 includes a relay 301; the input end of the relay 301 is connected with the processing module 203, and the output end of the relay 301 is connected with the to-be-tested panel 6, for receiving the power-on instruction and controlling the to-be-tested panel 6 to be powered on.

[0089] Further, the system includes a code stream module 4, which is used for distributing the audio and video source signals in the MPEG2 format to each to-be-tested panel 601 through the code stream communication protocol.

[0090] Specifically, the code stream module 4 includes a code stream card 401, a code stream host 402, a power distribution unit 403 and an LNB module 400; the LNB module 400 includes a first LNB unit 404 and a second LNB unit 405.

[0091] The code stream card 401 is installed in the code stream host 402, and is connected with the code stream host 402 through the PCI data line, for collecting the audio and video source signals in the MPEG2 format of the code stream host 402 and sending the signals to the power distribution unit 403.

[0092] The power distribution unit 403 is used for distributing the power of the audio and video source signals in the MPEG2 format according to the number of the to-be-tested panels 601, and sending the signals to each to-be-tested panel 601 through the code stream communication protocol.

[0093] The first LNB unit 404 has the input end connected with the code stream card 401 and the output end connected with the power distribution unit 403, for signal communication between the power distribution unit 403 and the code stream card 401; the second LNB unit 405 has the input end connected with the power distribution unit 403 and the output end connected with the to-be-tested panel 6, for signal communication between the power distribution unit 403 and the to-be-tested panel 6.

[0094] Further, the system includes a display module 5, which includes a split-screen unit 501 and a display panel 502.

[0095] The split-screen unit 501 is connected with the test host 2 through the HDMI data line, for receiving the SN data number and detection items of the to-be-tested panel 6 fed back by the test host 2 and sending the items to the display panel 502 in split screen.

[0096] The display panel 502 is used for split-screen display of the SN data number, the detection item, and prompting of test failure or test success.

[0097] The set-top box PCBA panel combination test method and system provided by the application assemble multiple PCBA test panels into a test panel, integrate basic signal testing, audio and video source signal input, audio and video signal testing, and split-screen display of test results, and the technology of measuring the percentage of the number of pixels of a standard image RGB is adopted in image signal testing, so that the device has low cost, the testing steps are concentrated, the line plug is convenient, and the testing standard is improved.

[0098] The above-mentioned embodiments are only preferred embodiments of the application, and cannot be used to limit the protection scope of the application. Any non-essential changes and replacements made by those skilled in the art on the basis of the application shall fall within the protection scope of the application.

Claims

1. A method for testing the merging of set-top box PCBA panels, characterized in that, Includes the following steps: A testing device and a testing host are provided. The testing device is used to install a set-top box PCBA board under test, and the testing host determines the status of the board. The set-top box PCBA board under test includes several set-top box PCBA boards under test, and multiple probes of the testing device are connected to several set-top box PCBA boards under test. The test host confirms that the upper board is in normal condition and sends a power-on command to control the panel under test to power on. The test host sequentially programs the SN data number to the board under test according to a number of labeling instructions sent by the board under test; the labeling instructions and the SN data number correspond one-to-one with each board under test. The test host detects the test signal sent by the panel under test, determines that the panel under test has entered the test mode, and performs basic signal tests and audio and video signal tests. When performing basic signal testing, the panel under test sends the signal to be tested according to the set basic signal test item table. The test host determines whether the basic signal meets the set standard signal range and outputs the basic signal judgment result. When the basic signal judgment result is a test failure, the test host stops the test and feeds back the SN data number and the basic signal test item number. When the basic signal judgment result is a test success, the test host performs audio and video signal testing. During audio and video signal testing, the panel under test sends audio and image signals to the test host. When the test host performs an audio signal test, it determines whether the volume of the audio signal is within the set volume threshold range and outputs the audio signal judgment result; if the audio signal judgment result is a test failure, the test host stops the test and returns the SN data number and an audio signal test failure prompt; if the audio signal judgment result is a test success, the test host performs an image signal test. When the test host performs an image signal test, it calculates the number of pixels in the image signal that conform to the standard image RGB, determines whether the number of pixels is within the set percentage range, and outputs the image signal judgment result. If the image signal judgment result is a test failure, the test host stops the test and sends back the SN data number and an image signal test failure prompt. If the image signal judgment result is a test success, the test host sends back the SN data number and a test success prompt. Before testing the panel under test, the audio and video source signals are distributed to each panel under test through power distribution. The percentage range is set to 90% to 100%. If the number of pixels in the image that conform to the standard image RGB should be equal to or higher than 90%, the test is considered successful; if the number of pixels in the image that conform to the standard image RGB should be lower than 90%, the test is considered unsuccessful.

2. The set-top box PCBA panel assembly test method according to claim 1, characterized in that, When the test host performs basic signal tests, it performs tests on the panel under test according to the basic signal test item table: Send software test commands to the panel under test, read the software version and firmware version and confirm that they match the set version number, and test the SN data number reading function to ensure it is normal. Send a voltage test command to the panel under test to test the voltage values ​​of the 13V and 18V voltage signals of the LNB circuit to see if they meet the set voltage range, and determine that the switching function of the 13V and 18V voltage signals is normal. Send a frequency test command to the panel under test to test whether the amplitude of the 22K frequency signal of the LNB circuit meets the set amplitude range; Send an infrared test command to the panel under test, read the infrared key value fed back by the panel under test, and determine whether the infrared key value conforms to the set infrared standard value; Send a USB test command to the panel under test, read the number of times the panel under test indicates that the USB function is normal, and determine whether the number of times the function is normal. Send a WIFI test command to the panel under test and determine whether the WIFI signal strength meets the set strength range.

3. The set-top box PCBA panel assembly test method according to claim 2, characterized in that, When the test host performs a WIFI test, it sends a WIFI test command to the panel under test, wherein the test command includes an SSID name; the panel under test receives the WIFI test command and connects to the SSID, and then provides feedback on the strength of the SSID; the test host determines whether the SSID strength meets the SSID strength range value set in the standard information.

4. A set-top box PCBA panel merging and testing system, characterized in that, The set-top box PCBA panel merging test method according to any one of claims 1-3 includes a testing device, a test host and a control module, wherein the test host includes a data acquisition module, a processing module and a test module; The testing device is used to install the set-top box PCBA board under test, connects to several test points of the set-top box PCBA board under test through probes, detects the basic signal test, audio and video signal and positioning command of the board under test and sends them to the test host; The control module is used to receive power-on commands and control the panel under test to power on. The acquisition module is connected to the detection device via an AV data cable or an HDMI data cable, and is used to acquire the audio and image signals of the panel under test and send them to the testing module. The test module is connected to the detection device and the processing module via a serial port data cable, and to the acquisition module via a PCI cable. It is used to burn SN data number, detect test signals, acquire basic signals, and perform basic signal tests and audio and video signal tests. The processing module is used to send a power-on command and to buffer 13V voltage signal, 18V voltage signal, 22K frequency signal and infrared key value.

5. The set-top box PCBA panel merging and testing system according to claim 4, characterized in that, Includes a display module, which includes a split-screen unit and a display panel; The split-screen unit is connected to the test host via an HDMI data cable, and is used to receive the SN data number and test items of the panel under test fed back by the test host, and send them to the display panel in split screen mode. The display panel is used to display the SN data number, test items, and prompts for test failure or test success in a split-screen format.

6. The set-top box PCBA panel merging and testing system according to claim 4, characterized in that, It includes a bitstream module, which is used to distribute MPEG2 format audio and video source signals to each board under test through a bitstream communication protocol. The bitstream module includes a bitstream card, a bitstream host and a power distribution unit. The streaming card is installed inside the streaming host and is used to collect MPEG2 format audio and video source signals from the streaming host and send them to the power distribution unit. The power allocation unit is used to allocate power to the MPEG2 format audio and video source signals and send them to each test board in the test panel.

7. The set-top box PCBA panel merging and testing system according to claim 6, characterized in that, The stream module also includes an LNB module, which is used for signal communication between the power distribution unit, the stream card, and the panel under test.

8. The set-top box PCBA panel merging and testing system according to claim 4, characterized in that, The detection device includes: an AC switch, a cylinder, a pressure plate, a probe, a tray, and a counter; The AC switch is used to provide the detection device with an AC signal for normal operation. The cylinder is connected to the top of the pressure plate, and the bottom of the pressure plate is connected to the probe; The panel to be tested is placed on the tray and connected to the detection device via the probe; The counter is used to calculate the number of boards to be tested.

9. The set-top box PCBA panel merging and testing system according to claim 4, characterized in that, The control module includes a relay, the input terminal of which is connected to the processing module, and the output terminal of which is connected to the panel under test.

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