Data line detection device

Abstract

The utility model provides a data line detection device, and belongs to the technical field of USB. The data line detection device comprises a detection plate, the detection plate is provided with a first USB interface and a second USB interface, the first USB interface and the second USB interface are electrically connected with two ports of a to-be-tested USB data line respectively, the first USB interface is electrically connected with a first switch module, the first switch module is electrically connected with a power module or a storage device, and the power module is electrically connected with a second switch module. The second USB interface is electrically connected with a second switch module, and the second switch module is electrically connected with a host or a mobile terminal; the detection board is electrically connected with a control unit, the control unit is used for controlling the on-off of the first switch module and the second switch module, so that the power supply module, the to-be-tested USB data line and the mobile terminal are communicated to form a first closed loop or the host, the to-be-tested USB data line and the storage device are communicated to form a second closed loop, and the detection board is provided with a voltage sampling circuit. The voltage sampling circuit is used for monitoring the voltage on the first closed loop or the second closed loop.

Description

Technical Field

[0001] This utility model belongs to the field of USB technology, and in particular relates to a data cable detection device. Background Technology

[0002] USB data cables are tools for connecting mobile devices and computers to achieve data transfer or communication. USB-C cables are currently the most popular type of data cable, widely used in industry and daily life. USB-C data cables can perform various functions, such as charging, playing music, transferring files, and live video streaming. They support PD fast charging and can provide charging power of over 100W, making them popular among users.

[0003] Before leaving the factory, data cables undergo performance testing to screen out defective products and ensure the quality of the data cables. Currently, USB-C data cable testing equipment on the market tests the internal resistance and leakage resistance (insulation resistance) of each wire in the USB-C data cable and determines whether it is qualified according to the set reference value. This testing method has many steps, is cumbersome to operate, and is not accurate enough. Sometimes we find that some data cables still have communication problems or cannot be charged when in use. Utility Model Content

[0004] This invention provides a data cable testing device to solve the technical problems of data cable resistance testing methods being cumbersome, inaccurate, and unable to detect data cable charging and communication.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides a data cable testing device, including a testing board. The testing board is provided with a first USB interface and a second USB interface. The first USB interface and the second USB interface are electrically connected to two ports of the USB data cable to be tested, respectively. The first USB interface is electrically connected to a first switch module.

[0007] The first switch module is electrically connected to a power module or a storage device, the second USB interface is electrically connected to the second switch module, and the second switch module is electrically connected to a host or a mobile terminal.

[0008] The detection board is electrically connected to a control unit, which controls the on / off state of the first switch module and the second switch module, so that the power module, the USB data cable under test and the mobile terminal are connected to form a first closed loop or the host, the USB data cable under test and the storage device are connected to form a second closed loop. The detection board is provided with a voltage sampling circuit, which is used to monitor the voltage on the first closed loop or the second closed loop.

[0009] According to another embodiment of the present invention, the first switch module includes a first switch and a second switch. The first switch and the second switch are independently configured and electrically connected to the first USB interface respectively. The first switch is electrically connected to the power module, and the second switch is electrically connected to the storage device.

[0010] Furthermore, the first switch includes a first relay, and the first switch module also includes a third USB interface and a fourth USB interface. The first relay is electrically connected to the VBUS pin of the third USB interface, and the third USB interface is electrically connected to an external power supply. The second switch includes a second relay, and the second relay is electrically connected to the VBUS pin of the fourth USB interface, and the fourth USB interface is electrically connected to a storage device.

[0011] Furthermore, the first switch also includes a first analog switch electrically connected to the C1 pin of the third USB interface, and the second switch includes a second analog switch electrically connected to the C1 pin of the fourth USB interface, so that the signals of the third USB interface and the fourth USB interface are connected.

[0012] According to another embodiment of the present invention, the second switch module includes a third switch and a fourth switch. The third switch and the fourth switch are independently configured and electrically connected to the second USB interface respectively. The third switch is electrically connected to the host and the fourth switch is electrically connected to the mobile terminal.

[0013] Furthermore, the second switch module also includes a fifth USB interface and a sixth USB interface, the third switch includes a third relay, the third relay is electrically connected to the VBUS pin of the fifth USB interface, the fifth USB interface is electrically connected to the host, the fourth switch includes a fourth relay, the fourth relay is electrically connected to the VBUS pin of the sixth USB interface, and the sixth USB interface is electrically connected to the mobile terminal.

[0014] Furthermore, the third switch also includes a third analog switch, which is electrically connected to the C1 pin of the fifth USB interface. The fourth switch includes a fourth analog switch, which is electrically connected to the C1 pin of the sixth USB interface, so that the signals of the fifth USB interface and the sixth USB interface are connected.

[0015] According to another embodiment of the present invention, the second switch module is also connected to an electronic load, and the control unit controls the on / off state of the first switch module and the second switch module, so that the power module, the USB data cable to be tested and the electronic load are connected to form a third closed loop, and the voltage sampling circuit can monitor the voltage on the third closed loop.

[0016] Furthermore, the second switch module also includes a fifth switch and a seventh USB interface, the fifth switch being electrically connected to the C1 pin of the seventh USB interface, and the seventh USB interface being connected to the electronic load.

[0017] According to another embodiment of the present invention, the detection board is further provided with an RJ45 network interface, the control unit is connected to the control board through the RJ45 network interface, and the control unit is also connected to the host.

[0018] According to another embodiment of the present invention, the detection board is provided with a current sampling circuit, which is used to monitor the current in the first closed loop or the second closed loop.

[0019] The advantages of this utility model compared with the prior art are:

[0020] The data cable testing device provided by this utility model controls the on / off state of the first and second switch modules through the control unit. It can realize the electrical connection between the power module, the USB data cable under test, and the mobile terminal, and form a first closed loop for testing the power supply function of the data cable. It can also realize the electrical connection between the host, the USB data cable under test, and the storage device, and form a second closed loop for testing the data transmission function of the data cable. The data cable testing device can detect various performance characteristics of the USB data cable, including power supply capability and data transmission capability, by switching between different loops. The test results are stable and reliable, and the switching between different loops is convenient and quick. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the circuit structure of the data cable detection device provided in this embodiment of the utility model;

[0023] Figure 2 Another circuit structure diagram of the data cable detection device provided in this embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the data cable detection device provided in an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of the structure of the independent switch provided in this embodiment of the utility model;

[0026] Figure 5 A schematic diagram of the USB interface structure provided in this embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the analog switch structure provided in an embodiment of the present invention.

[0028] The labels for the attached figures are as follows:

[0029] 100. Data cable testing device; 10. USB data cable to be tested;

[0030] 1. Detection board; 11. First USB interface; 12. Second USB interface; 13. RJ45 network interface;

[0031] 2. First switch module; 21. First switch; 22. Second switch; 23. Third USB interface; 24. Fourth USB interface;

[0032] 3. Second switch module; 31. Third switch; 32. Fourth switch; 33. Fifth USB interface; 34. Sixth USB interface; 35. Fifth switch; 36. Seventh USB interface;

[0033] 4. Control unit; 41. Power supply module; 411. Voltage sampling circuit; 42. Storage device; 43. Host; 44. Mobile terminal; 45. Electronic load; 451. Current sampling circuit. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figures 1-6As shown, this utility model provides a data cable testing device 100, including a testing board 1. The testing board 1 is provided with a first USB interface 11 and a second USB interface 12. The first USB interface 11 and the second USB interface 12 are electrically connected to two ports of the USB data cable 10 to be tested, respectively. The first USB interface 11 is electrically connected to a first switch module 2, which is electrically connected to a power module 41 or a storage device 42. The second USB interface 12 is electrically connected to a second switch module 3, which is electrically connected to a host 43 or a mobile terminal 44. The testing board 1 is electrically connected to a control unit 4, which is used to control the on / off state of the first switch module 2 and the second switch module 3, so that the power module 41, the USB data cable 10 to be tested, and the mobile terminal 44 are connected to form a first closed loop, or the host 43, the USB data cable 10 to be tested, and the storage device 42 are connected to form a second closed loop. The testing board 1 is provided with a voltage sampling circuit 411, which is used to monitor the voltage on the first closed loop or the second closed loop.

[0036] The data cable testing device 100 provided by this utility model controls the on / off state of the first switch module 2 and the second switch module 3 through the control unit 4. It can realize the electrical connection between the power module 41, the USB data cable 10 under test and the mobile terminal 44, and form a first closed loop for testing the power supply function of the data cable. It can also realize the electrical connection between the host 43, the USB data cable 10 under test and the storage device 42, and form a second closed loop for testing the data transmission function of the data cable. The data cable testing device 100 can detect various performance characteristics of the USB data cable, including power supply capability and data transmission capability, by switching between different loops. The test results are stable and reliable and the switching between different loops is convenient and quick.

[0037] It should be noted that the voltage sampling circuit 411 used in this invention is configured to collect the voltage of two connected sampling points, monitor the collected voltage, and if a sudden low voltage occurs after the voltage stabilizes, the data line test is deemed unqualified, and the voltage and current at that time are fed back to the test platform. The specific structure of the voltage sampling circuit 411 in this invention is not limited, as long as it can collect the sudden voltage changes of the sampling points.

[0038] It should be noted that, in this embodiment, as Figure 1As shown, the voltage sampling circuit 411 is disposed on the first closed loop, specifically connected to the second switch module 3 and the USB cable 10 to be tested. It is understood that in other embodiments, the voltage sampling circuit 411 can also be disposed on the second closed loop, or on the circuit bus on the detection board 1, with branches of this bus connecting various switch modules and the USB interface. Multiple circuits can also be disposed on different closed loops, thereby enabling the voltage sampling circuit 411 to monitor the voltage on the first closed loop, the second closed loop, or other closed loops.

[0039] There are several ways to connect different components between the first switch module 2 and the second switch module 3. For example, a multiplexer can be used to control the connection between the power supply module 41 and the storage device 42. Another example is... Figure 3 As shown, a multiplexer (MUX) is used to control the transmission of signals between the power module 41 and the storage device 42. For example, such as... Figure 2 As shown, both the power module 41 and the storage device 42 are connected to independent switches that operate separately. The first switch module 2 is used as an example for explanation. The first switch module 2 includes a first switch 21 and a second switch 22. The first switch 21 and the second switch 22 are independently configured and electrically connected to the first USB interface 11. The first switch 21 is electrically connected to the power module 41, and the second switch 22 is electrically connected to the storage device 42. Through the two independent first switches 21 and 22, when the first switch 21 is connected, the second switch 22 is disconnected, or vice versa, enabling the connection between either the power module 41 or the storage device 42 and the USB data cable 10 under test.

[0040] like Figure 4 The diagram shown is a structural schematic of an independent switch. Figure 5 The diagram shows a schematic of a USB interface structure. The first switch 21 includes a first relay. To facilitate connection to external devices, the first switch module 2 also includes a third USB interface 23 and a fourth USB interface 24. The first relay is electrically connected to the VBUS pin of the third USB interface 23, which is electrically connected to an external power supply. The second switch 22 includes a second relay, which is electrically connected to the VBUS pin of the fourth USB interface 24. The fourth USB interface 24 is electrically connected to a storage device 42. Controlling the VBUS pin facilitates flexible data storage connections and provides stable circuit protection.

[0041] like Figure 6As shown in the diagram, the first switch 21 also includes a first analog switch, which is electrically connected to the C1 pin of the third USB interface 23. The second switch 22 includes a second analog switch, which is electrically connected to the C1 pin of the fourth USB interface 24, thereby enabling signal communication between the third USB interface 23 and the fourth USB interface 24. This achieves signal communication between the power module 41 and the third USB interface 23, as well as between the storage device 42 and the fourth USB interface 24. Meanwhile, other relays and analog switches are disconnected to avoid affecting the circuit.

[0042] Similarly, the structure of the second switch module 3 is shown below. It should be noted that the structure of the second switch module 3 can also be a multiplexer or a multiplexer, which will not be elaborated upon here. For example... Figure 2 As shown, the second switch module 3 includes a third switch 31 and a fourth switch 32. The third switch 31 and the fourth switch 32 are independently configured and electrically connected to the second USB interface 12 respectively. The third switch 31 is electrically connected to the host 43, and the fourth switch 32 is electrically connected to the mobile terminal 44. Through the two independent third switches 31 and fourth switches 32, when the third switch 31 is connected, the fourth switch 32 is disconnected, or when the third switch 31 is disconnected, the fourth switch 32 is connected, so that one of the host 43 or the mobile terminal 44 can be connected to the USB data cable 10 under test.

[0043] To facilitate connection with external devices, the second switch module 3 further includes a fifth USB interface 33 and a sixth USB interface 34. The third switch 31 includes a third relay, which is electrically connected to the VBUS pin of the fifth USB interface 33. The fifth USB interface 33 is electrically connected to the host 43. The fourth switch 32 includes a fourth relay, which is electrically connected to the VBUS pin of the sixth USB interface 34. The sixth USB interface 34 is electrically connected to the mobile terminal 44. Controlling the VBUS pin facilitates flexible data storage connection and provides stable circuit protection.

[0044] The third switch 31 also includes a third analog switch, which is electrically connected to the C1 pin of the fifth USB interface 33. The fourth switch 32 includes a fourth analog switch, which is electrically connected to the C1 pin of the sixth USB interface 34, so that the fifth USB interface 33 and the sixth USB interface 34 are connected, realizing the signal connection between the host 43 and the fifth USB interface 33 and the signal connection between the mobile terminal 44 and the sixth USB interface 34. At the same time, other relays and analog switches are disconnected, realizing the connection of the first closed loop or the second closed loop.

[0045] The testing device provided by this utility model also has a current testing function. The second switch module 3 is also connected to an electronic load 45. The control unit 4 controls the on / off state of the first switch module 2 and the second switch module 3, so that the power module 41, the USB data cable 10 to be tested and the electronic load 45 are connected to form a third closed loop. A current sampling circuit 451 is provided on the detection board 1. The current sampling circuit 451 is located on the third closed loop. The current sampling circuit 451 can collect current data in real time and transmit it to the test platform of the control unit 4. The specific structure of the current sampling circuit 451 is not limited in this utility model, as long as it can collect the current of the sampling point.

[0046] It should be noted that, in this embodiment, as Figure 1 As shown, the current sampling circuit 451 is located on the third closed loop, specifically connected to the electronic load 45 and the USB cable 10 to be tested. It is understood that in other embodiments, the current sampling circuit 451 can also be located on the first closed loop, the second closed loop, or on the circuit bus on the detection board 1, with branches of this bus connecting various switch modules and the USB interface. Multiple circuits can also be provided, each located on a different closed loop, thereby enabling the current sampling circuit 451 to monitor the current in the first closed loop, the second closed loop, the third closed loop, or other closed loops.

[0047] The connection method of electronic load 45 is as follows Figure 2 and Figure 3 As shown, the second switch module 3 also includes a fifth switch 35 and a seventh USB interface 36. The fifth switch 35 is electrically connected to the C1 pin of the seventh USB interface 36, and the seventh USB interface 36 is connected to the electronic load 45. The connection of the electronic load 45 is more flexible and convenient. According to the actual test requirements, the electronic load 45 can be quickly and easily connected or disconnected by controlling the on and off of the fifth switch 35, thereby better meeting the usage requirements of the electronic load 45 in different test scenarios.

[0048] The control method of control unit 4 is as follows: Figure 3 As shown, the test board 1 is also provided with an RJ45 network interface 13. The control unit 4 is connected to the test board 1 through the RJ45 network interface 13. The control unit 4 is an industrial computer. The industrial computer is connected to the test board 1 through the RJ45 network. The software testing platform sends commands to control the test board 1. The control unit 4 is also connected to the host 43 to realize the transfer and deletion of files to the storage device 42, and to test the file transfer rate of the USB data cable 10 under test.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A data line detection apparatus, characterized by comprising: The detection board is provided with a first USB interface and a second USB interface, the first USB interface and the second USB interface are respectively electrically connected with two ports of the USB data line to be tested, The first switch module is electrically connected with a power module or a storage device, the second USB interface is electrically connected with a second switch module, and the second switch module is electrically connected with a host or a mobile terminal. The control unit is electrically connected with the detection board, and is used for controlling the on-off of the first switch module and the second switch module, so that the power module, the USB data line to be tested and the mobile terminal are communicated to form a first closed loop or the host, the USB data line to be tested and the storage device are communicated to form a second closed loop.

2. The data line detection apparatus of claim 1, wherein, The first switch module includes a first switch and a second switch, the first switch and the second switch are independently arranged and respectively electrically connected with the first USB interface, the first switch is electrically connected with the power module, and the second switch is electrically connected with the storage device.

3. The data line detection apparatus of claim 2, wherein, The first switch includes a first relay, the first switch module further includes a third USB interface and a fourth USB interface, the first relay is electrically connected with a VBUS pin of the third USB interface, the third USB interface is electrically connected with an external power supply, the second switch includes a second relay, the second relay is electrically connected with a VBUS pin of the fourth USB interface, and the fourth USB interface is electrically connected with the storage device.

4. The data line detection apparatus of claim 3, wherein, The first switch further includes a first analog switch, the first analog switch is electrically connected with a C1 pin of the third USB interface, the second switch includes a second analog switch, the second analog switch is electrically connected with a C1 pin of the fourth USB interface, so that the third USB interface and the fourth USB interface are in signal communication.

5. The data line detection apparatus of claim 1, wherein, The second switch module includes a third switch and a fourth switch, the third switch and the fourth switch are independently arranged and respectively electrically connected with the second USB interface, the third switch is electrically connected with the host, and the fourth switch is electrically connected with the mobile terminal.

6. The data line detection apparatus of claim 5, wherein, The second switch module further includes a fifth USB interface and a sixth USB interface, the third switch includes a third relay, the third relay is electrically connected with a VBUS pin of the fifth USB interface, the fifth USB interface is electrically connected with the host, the fourth switch includes a fourth relay, the fourth relay is electrically connected with a VBUS pin of the sixth USB interface, and the sixth USB interface is electrically connected with the mobile terminal.

7. The data line detection apparatus of claim 6, wherein, The third switch further includes a third analog switch, the third analog switch is electrically connected with a C1 pin of the fifth USB interface, the fourth switch includes a fourth analog switch, the fourth analog switch is electrically connected with a C1 pin of the sixth USB interface, so that the fifth USB interface and the sixth USB interface are in signal communication.

8. The data line detection apparatus of claim 1, wherein, The second switch module is further connected with an electronic load, and the control unit controls the on-off of the first switch module and the second switch module, so that the power module, the USB data line to be tested and the electronic load are communicated to form a third closed loop, and the voltage sampling circuit can monitor the voltage on the third closed loop.

9. The data line detection apparatus of claim 8, wherein, The second switch module further comprises a fifth switch and a seventh USB interface, and the fifth switch is electrically connected with a C1 pin of the seventh USB interface, and the seventh USB interface is connected with the electronic load.

10. The data line detection apparatus of claim 1, wherein, The detection board is provided with a current sampling circuit, which is used for monitoring the current on the first closed loop or the second closed loop.

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