A multifunctional automatic testing system for complete television sets

Abstract

The present invention relates to a multifunctional automatic testing system for a whole television set, comprising an input transmission mechanism, a good product transmission mechanism, a defective product transmission mechanism, a liftable conveying mechanism, an XYZ three-axis motion platform, a test fixture, a functional testing machine, and an industrial computer, wherein the industrial computer is respectively connected to the XYZ three-axis motion platform, a barcode reader, and a testing device for communication, the industrial computer is connected to an industrial camera via a gigabit network port, and the industrial computer is respectively electrically connected to the input transmission mechanism, the good product transmission mechanism, the defective product transmission mechanism, and the liftable conveying mechanism. The beneficial effects of the present invention are: replacing manual detection, the test results are reliable and stable, the labor intensity of workers is reduced, and work efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of television testing, and in particular to a multifunctional automatic testing system for a complete television set. Background Art

[0002] At present, the TV test station is composed of a test machine, a test fixture, a circuit board, and a tester, and the test machine is manually operated. The test operator opens the test fixture cover, safely takes out the product to be tested from the designated position and places it in the fixture, scans the product serial number, covers the fixture, manually presses the test start switch or clicks the test button on the test machine interface to trigger the test. After the test is completed, the human eye observes the test results fed back on the test machine screen to determine whether the circuit board is qualified or unqualified. The current test process relies on human subjective initiative and requires certain skills and experience, which is easy to cause misjudgment of the circuit board test results. In addition, the operator's limited energy is likely to cause irregular operation after working for a period of time, resulting in unstable test efficiency and affecting output. In addition, the test cost is also one of the key factors we need to focus on. The cost of manual testing mainly consists of the test machine cost (test cabinet, test instrument), test fixture cost and labor cost. The labor cost will continue to increase with the increase of the operator's working age. Summary of the invention

[0003] The purpose of the present invention is to overcome the above problems existing in the prior art and provide a multifunctional automatic testing system for a whole television set, which replaces manual testing, has reliable and stable test results, reduces the labor intensity of workers and improves work efficiency.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A multifunctional automatic testing system for a whole television set comprises an input conveying mechanism, a good product conveying mechanism, a defective product conveying mechanism, a liftable conveying mechanism, an XYZ three-axis motion platform, a test fixture, a functional testing machine, and an industrial computer. The input conveying mechanism is located upstream of the liftable conveying mechanism and is used to convey the television set to the liftable conveying mechanism. The good product conveying mechanism and the defective product conveying mechanism are located downstream of the liftable conveying mechanism and are used to receive and convey qualified and unqualified television sets, respectively. The functional testing machine is located on one side of the liftable conveying mechanism. The test fixture is installed on the XYZ three-axis motion platform so that the test fixture can be moved above the liftable conveying mechanism. The test fixture is equipped with multiple test signal output ports, a clamping arm for positioning and clamping the TV, a barcode reader for reading the barcode on the TV, and at least two industrial cameras for detecting the TV screen. The functional testing machine is equipped with test equipment connected to the multiple test signal output ports of the test fixture for performing functional tests on various hardware interfaces of the TV. The industrial computer is respectively connected to the XYZ three-axis motion platform, the barcode reader, and the test equipment for communication. The industrial computer is connected to the industrial camera through a gigabit network port. The industrial computer is respectively electrically connected to the input transmission mechanism, the good product transmission mechanism, the defective product transmission mechanism, and the liftable conveying mechanism.

[0006] Among them, the test equipment includes a programmable power supply for powering the TV, a video signal generator for detecting the TV's AV, HDMI, VGA, and YPBPR interfaces, a TV remote control for detecting the TV's remote control reception capability, a USB flash drive for detecting the TV's USB interface, a wireless router for detecting the TV's WiFi communication function, and a microphone and audio analysis card for detecting the TV's speaker performance.

[0007] Among them, the multiple test signal output ports of the test fixture include an AV plug connected to the video signal generator through an AV data cable, an HDMI plug connected to the video signal generator through an HDMI data cable, a VGA plug connected to the video signal generator through a VGA data cable, a YPBPR plug connected to the video signal generator through a YPBPR data cable, a USB plug connected to a U disk through a USB data cable, and a power plug connected to a programmable power supply through a power cable.

[0008] Wherein, the liftable conveying mechanism comprises a lifting platform that moves up and down in a vertical direction and a horizontal conveying belt located on the surface of the lifting platform.

[0009] Wherein, the input conveying mechanism and the good product conveying mechanism are located on the same horizontal plane.

[0010] Wherein, the defective product conveying mechanism is located above or below the good product conveying mechanism.

[0011] Wherein, the top of the functional testing machine is provided with a protective cover extending toward one side of the liftable conveyor.

[0012] Wherein, a safety protection net is installed on the periphery of the test system.

[0013] Working principle: The TV is transported from the input transmission mechanism to the liftable conveyor platform, the industrial camera takes a picture of the TV, the barcode reader scans and reads the barcode on the TV and transmits it to the industrial computer, the industrial computer controls the XYZ three-axis motion platform to align the test fixture with the position of the TV, connects multiple test signal output ports to the jacks on the TV body, the clamping arm fixes the TV to prevent it from moving during the test, and the industrial computer controls the functional tester to test various functions of the TV; after the test is completed, the test fixture leaves the TV, the functional tester feeds back the test results to the industrial computer, and displays them on the display screen of the industrial computer, which is convenient for the test monitoring personnel to view; if the TV passes the test, the industrial computer controls the liftable conveyor mechanism to convey the TV to the good product conveyor mechanism, if the TV fails the test, the industrial computer controls the liftable conveyor mechanism to convey the TV to the defective product conveyor mechanism.

[0014] The beneficial effects of the present invention are: replacing manual testing, the test results are reliable and stable, the labor intensity of workers is reduced, and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a module diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the field of view distribution of the industrial camera of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0020] like Figure 1 and 2As shown, taking the detection of a 65-inch TV set as an example, a multifunctional automatic testing system for a TV set includes an input conveying mechanism 3, a good product conveying mechanism 5, a bad product conveying mechanism 6, a liftable conveying mechanism 4, an XYZ three-axis motion platform 7, a test fixture 8, a functional testing machine 2, and an industrial computer 1. The input conveying mechanism 3 is located upstream of the liftable conveying mechanism 4 and is used to convey the TV set 100 to the liftable conveying mechanism 4. The good product conveying mechanism 5 and the bad product conveying mechanism 6 are located downstream of the liftable conveying mechanism 4 and are used to receive and convey qualified and unqualified TV sets 100, respectively. The functional testing machine 2 is located on one side of the liftable conveying mechanism 4. The test fixture 8 is installed on the XYZ three-axis motion platform 7 so that the test fixture 8 can The functional testing machine 2 is provided with a testing device which is connected to the multiple test signal output ports of the test fixture 8 and performs functional testing on each hardware interface of the TV 100. The industrial computer 1 is respectively connected to the XYZ three-axis motion platform 7, the barcode reader and the testing device for communication. The industrial computer 1 is connected to the industrial camera through the gigabit network port. The industrial computer 1 is respectively connected to the input transmission mechanism 3, the good product transmission mechanism 5, the defective product transmission mechanism 6 and the liftable conveying mechanism 4.

[0021] The test equipment includes a programmable power supply for the TV, a video signal generator for testing the TV's AV, HDMI, VGA, and YPBPR interfaces, a TV remote control for testing the TV's remote control reception capability, a USB flash drive for testing the TV's USB interface, a wireless router for testing the TV's WiFi communication function, and a microphone and audio analysis card for testing the TV's speaker performance.

[0022] The multiple test signal output ports of the test fixture include an AV plug connected to the video signal generator via an AV data cable, an HDMI plug connected to the video signal generator via an HDMI data cable, a VGA plug connected to the video signal generator via a VGA data cable, a YPBPR plug connected to the video signal generator via a YPBPR data cable, a USB plug connected to a U disk via a USB data cable, and a power plug connected to a programmable power supply via a power cord. The positions of the plugs on the test fixture correspond one by one to the positions of the jacks on the TV body to be tested.

[0023] The liftable conveying mechanism 4 includes a lifting platform 42 that moves up and down in the vertical direction and a horizontal conveying belt 41 located on the surface of the lifting platform 42. The lifting platform 42 and the horizontal conveying belt 41 are assembled using existing equipment, and the specific structure is not repeated here.

[0024] The input conveying mechanism 3 and the good product conveying mechanism 5 are located on the same horizontal plane, and the defective product conveying mechanism 6 is located above the good product conveying mechanism 5. The input conveying mechanism 3, the good product conveying mechanism 5, and the defective product conveying mechanism 6 in this embodiment are all ordinary belt conveyors, and the specific structure will not be repeated.

[0025] A protective cover extending toward one side of the liftable conveyor 4 is provided on the top of the functional testing machine 2 .

[0026] A safety net is installed around the test system to prevent outsiders or objects from entering the working area of ​​the test system and interfering with the work of the test system when the test system is working.

[0027] When eight industrial cameras are working, the camera fields of view are distributed as follows: Figure 3 As shown, the camera fields of view of the TV screen area captured by industrial cameras 1 to 8 correspond to 91, 92, 93, 94, 95, 96, 97, and 98 respectively, and the camera fields of view of any two adjacent industrial cameras have an overlapping area 99 to prevent a blind spot in the screen capture of the TV 100.

[0028] Working principle: The TV is transported from the input transmission mechanism to the liftable conveyor platform, the industrial camera takes a picture of the TV, the barcode reader scans and reads the barcode on the TV and transmits it to the industrial computer, the industrial computer controls the XYZ three-axis motion platform to align the test fixture with the position of the TV, connects multiple test signal output ports to the jacks on the TV body, the clamping arm fixes the TV to prevent it from moving during the test, and the industrial computer controls the functional tester to test various functions of the TV; after the test is completed, the test fixture leaves the TV, the functional tester feeds back the test results to the industrial computer, and displays them on the display screen of the industrial computer, which is convenient for the test monitoring personnel to view; if the TV passes the test, the industrial computer controls the liftable conveyor mechanism to convey the TV to the good product conveyor mechanism, if the TV fails the test, the industrial computer controls the liftable conveyor mechanism to convey the TV to the defective product conveyor mechanism.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A multifunctional automatic testing system for a complete television set, characterized in that: It includes an input transmission mechanism, a good product transmission mechanism, a defective product transmission mechanism, a liftable conveying mechanism, an XYZ three-axis motion platform, a test fixture, a function tester, and an industrial computer. The input transmission mechanism is located upstream of the liftable conveying mechanism and is used to convey the television to the liftable conveying mechanism. The good product transmission mechanism and the defective product transmission mechanism are located downstream of the liftable conveying mechanism and are used to receive and convey qualified and unqualified televisions respectively. The function tester is located on one side of the liftable conveying mechanism. The function tester is provided with a test device connected to a plurality of test signal output ports of the test fixture and used to perform function tests on various hardware interfaces of the television. The test device includes a programmable power supply for powering the television, a video signal generator for detecting the AV, HDMI, VGA, and YPBPR interfaces of the television, a television remote controller for detecting the remote control receiving capability of the television, a U disk for detecting the USB interface of the television, a wireless router for detecting the WiFi communication function of the television, and a microphone and an audio analysis card for detecting the performance of the television speaker. The test fixture The test fixture is installed on the XYZ three-axis motion platform so that it can be moved above the liftable conveying mechanism. The test fixture is equipped with multiple test signal output ports, a clamping arm for positioning and clamping the TV, a barcode reader for reading the barcode on the TV, and at least two industrial cameras for detecting the TV screen; the multiple test signal output ports of the test fixture include an AV plug connected to the video signal generator through an AV data cable, an HDMI plug connected to the video signal generator through an HDMI data cable, a VGA plug connected to the video signal generator through a VGA data cable, a YPBPR plug connected to the video signal generator through a YPBPR data cable, a USB plug connected to a U disk through a USB data cable, and a power plug connected to a programmable power supply through a power cable; the industrial computer is respectively connected to the XYZ three-axis motion platform, the barcode reader, and the test equipment for communication, the industrial computer is connected to the industrial camera through a gigabit network port, and the industrial computer is respectively electrically connected to the input conveying mechanism, the good product conveying mechanism, the defective product conveying mechanism, and the liftable conveying mechanism.

2. The multifunctional automatic testing system for a complete television set according to claim 1, characterized in that: The liftable conveying mechanism comprises a lifting platform which moves up and down in a vertical direction and a horizontal conveying belt located on the surface of the lifting platform.

3. The multifunctional automatic testing system for a complete television set according to claim 1, characterized in that: The input conveying mechanism and the good product conveying mechanism are located on the same horizontal plane.

4. The multifunctional automatic testing system for a complete television set according to claim 1, characterized in that: The defective product conveying mechanism is located above or below the good product conveying mechanism.

5. The multifunctional automatic testing system for a complete television set according to claim 1, characterized in that: The top of the functional testing machine is provided with a protective cover extending toward one side of the liftable conveyor.

6. The multifunctional automatic testing system for a complete television set according to claim 1, characterized in that: A safety net is installed on the periphery of the test system.

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