A testing device for USB 3.0 devices

Abstract

This utility model discloses a testing device for USB 3.0 devices. The testing device includes at least one testing module; the testing module includes a test interface connection unit and a multiplexer unit; the test interface connection unit is electrically connected to the multiplexer unit; the test interface connection unit includes at least four USB 3.0 test interfaces, each of which supports connection to both USB 2.0 and USB 3.0 test interfaces; the multiplexer unit sequentially connects to target test interfaces according to a set test order, thereby enabling testing of at least one test interface, wherein the target test interface is a USB 3.0 test interface connected to the test interface. This utility model solves the technical problem of high testing costs and high labor costs associated with the prior art when testing multiple USB interfaces, requiring multiple testing devices. It achieves the technical effect of one testing device being able to test multiple USB interfaces, reducing testing costs and labor costs.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a testing device for USB 3.0 devices. Background Technology

[0002] Currently, testing the transmission rate of a USB 3.0 interface typically requires multiple testing devices (such as USB 3.0 hard drives and USB 2.0 flash drives). This is especially true when the product under test has multiple USB 3.0 interfaces, which increases the need for even more testing devices and raises the testing cost. Utility Model Content

[0003] This utility model provides a testing device for USB 3.0 devices, which solves the technical problems of high testing costs and high labor costs that exist in the prior art when testing multiple USB interfaces, which requires multiple testing devices.

[0004] This utility model provides a testing device for a USB 3.0 device, the testing device including at least one testing module; the testing module includes a test interface connection unit and a multiplexer unit;

[0005] The interface under test connection unit is electrically connected to the multiplexer unit;

[0006] The interface under test connection unit includes at least four USB 3.0 test interfaces, each of which supports connection to both USB 2.0 and USB 3.0 interfaces under test;

[0007] The multiplexer unit sequentially connects to the target test interfaces according to a set test order to perform tests on at least one of the interfaces to be tested, wherein the target test interface is the USB 3.0 test interface connected to the interface to be tested.

[0008] Furthermore, the multiplexer unit includes at least a first switch supporting the USB 3.0 standard and a second switch supporting the USB 2.0 standard;

[0009] Each of the USB 3.0 test interfaces is electrically connected to the first switch via a unidirectional differential signal line;

[0010] Each of the USB 3.0 test interfaces is electrically connected to the second switch via a bidirectional differential signal line.

[0011] Furthermore, the testing device also includes a detection signal receiving unit;

[0012] The detection signal receiving unit is electrically connected to the multiplexer unit and is used to receive the test signal of the connected target test interface.

[0013] Furthermore, the detection signal receiving unit includes at least one USB 3.0 interface.

[0014] Furthermore, the testing device also includes a main control unit;

[0015] The main control unit is electrically connected to the first switch and the second switch in the multiplexer unit, respectively; the main control unit is electrically connected to the host computer via a serial port;

[0016] The main control unit is configured to receive test instructions from the host computer and control the connection or disconnection between the first switch, the second switch and each of the interfaces to be tested based on the set test sequence carried in the test instructions.

[0017] Furthermore, the USB 3.0 interface is electrically connected to the first switch via a unidirectional differential signal line;

[0018] The USB 3.0 interface is electrically connected to the second switch via a bidirectional differential signal line.

[0019] Furthermore, the testing device also includes a power switch;

[0020] The power switch is electrically connected to each of the USB 3.0 test interfaces and the main control unit, respectively;

[0021] The power switch is used to connect the currently tested USB 3.0 test interface to power under the control of the main control unit.

[0022] Furthermore, the testing device also includes a power supply unit;

[0023] The power supply unit is electrically connected to the power switch.

[0024] Furthermore, the main control unit is electrically connected to the first switch and the second switch in the multiplexer unit via a general-purpose input / output interface.

[0025] Furthermore, the testing device also includes a host computer;

[0026] The detection signal receiving unit is electrically connected to the host computer.

[0027] This utility model discloses a testing device for USB 3.0 devices. The testing device includes at least one testing module; the testing module includes a test interface connection unit and a multiplexer unit; the test interface connection unit is electrically connected to the multiplexer unit; the test interface connection unit includes at least four USB 3.0 test interfaces, each of which supports connection to both USB 2.0 and USB 3.0 test interfaces; the multiplexer unit sequentially connects to target test interfaces according to a set test order to perform testing on at least one test interface, wherein the target test interface is a USB 3.0 test interface connected to the test interface. This utility model solves the technical problem of high testing costs and high labor costs associated with the prior art when testing multiple USB interfaces by setting multiple USB 3.0 test interfaces that simultaneously support both USB 2.0 and USB 3.0 test interfaces in the test interface connection unit, and using the multiplexer unit to sequentially connect to target test interfaces according to a set test order for interface testing. It achieves the technical effect of one testing device being able to test multiple USB interfaces, reducing testing and labor costs. Attached Figure Description

[0028] Figure 1 This is a structural diagram of a testing device for a USB 3.0 device provided in an embodiment of this utility model;

[0029] Figure 2 This is a structural diagram of a testing device for another USB 3.0 device provided in an embodiment of this utility model. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish different objects, not to limit a specific order. The various embodiments of this utility model described below can be performed individually, or they can be combined with each other; this utility model does not impose specific limitations in this regard.

[0032] Figure 1 This is a structural diagram of a testing device for a USB 3.0 device provided in an embodiment of this utility model.

[0033] like Figure 1As shown, the testing apparatus for the USB 3.0 device includes at least one test module 100; the test module 100 includes a test interface connection unit 10 and a multiplexer unit 20.

[0034] The interface under test connection unit 10 is electrically connected to the multiplexer unit 20; the interface under test connection unit 10 includes at least four USB 3.0 test interfaces 11, each of which supports connection to the interface under test 200 of USB 2.0 and USB 3.0. Figure 1 The diagram illustrates, exemplarily, a test apparatus having a test module 100, a product under test having two test interfaces 200, and each being connected to two of a plurality of USB 3.0 test interfaces 11.

[0035] The multiplexer unit 20 sequentially connects to the target test interfaces according to the set test order to perform tests on at least one interface 200 to be tested. The target test interface is the USB 3.0 test interface 11 connected to the interface 200 to be tested.

[0036] Specifically, when the product under test has only one test interface 200, any USB 3.0 test interface 11 in the test interface connection unit 10 can be connected to test its transmission rate. The multiplexer unit 20 receives the test command transmitted by the main control unit 40, and controls the USB 3.0 test interface 11 connected to the test interface 200 to connect to the detection signal receiving unit 30 based on the test command, so as to complete the test of the transmission rate of the test interface 200.

[0037] If the product under test has multiple test interfaces 200, these multiple test interfaces 200 can be simultaneously connected to each USB 3.0 test interface 11 in the test interface connection unit 10. The multiplexer unit 20 receives the test command transmitted by the main control unit 40 and controls each test interface 200 to connect to the detection signal receiving unit according to the set test order carried in the test command, so that the transmission rate test can be performed on each test interface 200 sequentially according to the set test order.

[0038] Since the USB 3.0 test interface 11 is backward compatible with USB 2.0, the connected interface to be tested 200 can be either a USB 2.0 interface or a USB 3.0 interface, thus meeting the requirement that a single test device can test interfaces of different specifications. Furthermore, a single test device can include more than one test module 100, and each test module 100 has at least four USB 3.0 test interfaces 11 in its interface to be tested connection unit 10, enabling a single test device to connect multiple interfaces to be tested 200 simultaneously, thus fulfilling the requirement that a single test device can test multiple interfaces to be tested.

[0039] It should be noted that if the interface 200 under test is a USB 2.0 interface, only the USB 2.0 DP & DN signal transmission rate test is required. If the interface 200 under test is a USB 3.0 interface, the USB 2.0 DP & DN signal transmission rate test must be performed first, followed by the USB 3.0 TX & RX signal transmission rate test; alternatively, the USB 3.0 TX & RX signal transmission rate test can be performed directly. If the test is successful in this case, it is assumed that the USB 2.0 DP & DN signal transmission rate of the interface 200 under test also meets the requirements. However, since the USB 2.0 DP & DN signal transmission rate may not meet the requirements, testing only the USB 3.0 TX & RX signal transmission rate is not recommended.

[0040] This invention solves the technical problem of high testing costs and high labor costs associated with testing multiple USB interfaces by setting multiple USB 2.0 and USB 3.0 test interfaces simultaneously in the interface under test connection unit, and using a multiplexer unit to sequentially connect the target test interfaces according to a set test order for interface testing. This achieves the technical effect of one test device being able to test multiple USB interfaces, thus reducing testing costs and labor costs.

[0041] Figure 2 This is a structural diagram of a testing device for another USB 3.0 device provided in an embodiment of this utility model.

[0042] Optionally, such as Figure 2 As shown, the multiplexer unit 20 includes at least a first switch 21 that supports the USB 3.0 standard and a second switch 22 that supports the USB 2.0 standard.

[0043] Each USB 3.0 test interface 11 is electrically connected to the first switch 21 via unidirectional differential signal lines TX & RX; each USB 3.0 test interface 11 is electrically connected to the second switch 22 via bidirectional differential signal lines DP & DN.

[0044] Specifically, the first switch 21 can be a USB 3.0-4:1 Mux / DeMux Switch, and the second switch 22 can be a USB 2.0-4:1 Mux / DeMux Switch. When the interface under test 200 is a USB 3.0 interface, the main control unit 40 controls the first switch 21 to connect to the USB 3.0 test interface 11 connected to the interface under test 200 through unidirectional differential signal lines TX & RX. When the interface under test 200 is a USB 2.0 interface, the main control unit 40 controls the second switch 22 to connect to the USB 3.0 test interface 11 connected to the interface under test 200 through bidirectional differential signal lines DP & DN.

[0045] Optionally, such as Figure 2 As shown, the testing device further includes a detection signal receiving unit 30; the detection signal receiving unit 30 is electrically connected to the multiplexer unit 20 and is used to receive the test signal from the connected target test interface. Optionally, the detection signal receiving unit 30 includes at least one USB 3.0 interface, which is electrically connected to the first switch 21 via unidirectional differential signal lines TX & RX; the USB 3.0 interface is also electrically connected to the second switch 22 via bidirectional differential signal lines DP & DN.

[0046] Specifically, the detection signal receiving unit 30 is used to receive the test signal of the USB 3.0 test interface 11 connected to the interface under test 200 controlled by the current multiplexer unit 20, and transmit the received test signal to the host computer 60 to realize the transmission rate test of the interface under test 200.

[0047] Optionally, such as Figure 2 As shown, the testing device also includes a main control unit 40 and a host computer 60; the detection signal receiving unit 30 is electrically connected to the host computer 60.

[0048] The main control unit 40 is electrically connected to the first switch 21 and the second switch 22 in the multiplexer unit 20 respectively; the main control unit 40 is electrically connected to the host computer 60 through a serial port; the main control unit 40 is configured to receive test commands from the host computer 60, and control the connection or disconnection between the first switch 21, the second switch 22 and each interface 200 to be tested based on the set test sequence carried in the test commands.

[0049] Optionally, the main control unit 40 is electrically connected to the first switch 21 and the second switch 22 in the multiplexer unit 20 via a general-purpose input / output interface.

[0050] Optionally, such as Figure 2As shown, the testing device also includes a power switch 50; the power switch 50 is electrically connected to each USB 3.0 test interface 11 and the main control unit 40 via a power cable VBUS; the power switch 50 is used to control the currently tested USB 3.0 test interface 11 to be connected to the power supply under the control of the main control unit 40.

[0051] Optionally, such as Figure 2 As shown, the testing device also includes a power supply unit 70; the power supply unit 70 is electrically connected to the power switch 50.

[0052] For example, with Figure 2 Taking the test device shown as an example, when the product under test is connected to the interface under test connection unit 10, the main control unit 40 can automatically identify which USB 3.0 test interfaces 11 in the interface under test connection unit 10 are connected to the interface under test 200, and whether the connected interface under test 200 is a USB 2.0 interface or a USB 3.0 interface.

[0053] When it is identified that the test interface 200 of the product under test has only one USB 2.0 interface, and is connected to the first of the four USB 3.0 test interfaces 11 (for example), the host computer 60 sends a test command to the main control unit 40 through the serial port. The main control unit 40 controls the second switch 22 through GPIO (General-Purpose Input / Output) to turn on the USB 2.0 DP&DN signal of the target test interface, and controls the connection of the VBUS of the target test interface, so that the target test interface is connected and can identify the product under test, thereby realizing the function of testing the transmission rate of the test interface 200.

[0054] When it is identified that the test interface 200 of the product under test has only one USB 3.0 interface and is connected to the second of the four USB 3.0 test interfaces 11 (for example), the host computer 60 sends a test command to the main control unit 40 through the serial port. The main control unit 40 controls the first switch 21 through GPIO to turn on the USB 3.0 TX & RX signals of the target test interface and controls the connection of the VBUS of the target test interface, so that the target test interface is connected and the product under test is identified, thereby realizing the function of performing transmission rate test on the test interface 200.

[0055] When the test interface 200 of the product under test is identified as multiple (taking 2-4 test interfaces as an example) USB 2.0 interfaces, and connected to some of the four USB 3.0 test interfaces 11, the host computer 60 sends a test command carrying the set test order to the main control unit 40 through the serial port. Based on the set test order, the main control unit 40 controls the second switch 22 through GPIO to sequentially turn on the USB 2.0 DP & DN signals of the target test interfaces, and controls the connection of the VBUS of the target test interfaces, so that each target test interface is connected in sequence and the product under test is identified, thereby realizing the function of performing transmission rate test on each test interface 200.

[0056] When the test interface 200 of the product under test is identified as having multiple (taking 2-4 test interfaces as an example) USB 3.0 interfaces, and is connected to some of the four USB 3.0 test interfaces 11, the host computer 60 sends a test command carrying the set test order to the main control unit 40 via a serial port. Based on the set test order, the main control unit 40 controls the first switch 21 and the second switch 22 via GPIO to sequentially connect the USB 2.0 DP&DN signals and USB 3.0 TX&RX signals of the target test interface, and simultaneously controls the VBUS connection of the corresponding target test interface. The test command can be configured to first test the USB 2.0 DP&DN signal transmission rate of each test interface 200, and then test the USB 3.0 TX&RX signal transmission rate, or it can be configured to directly test the USB 3.0 TX&RX signal transmission rate.

[0057] When it is identified that the test interface 200 of the product under test has both USB 2.0 and USB 3.0 interfaces, and is connected to some of the four USB 3.0 test interfaces 11, the host computer 60 sends a test command carrying the set test order to the main control unit 40 via a serial port. Based on the set test order, the main control unit 40 controls the first switch 21 and the second switch 22 via GPIO to sequentially connect the USB 2.0 DP&DN signals of the target test interface, and controls the VBUS connection of the target test interface. The test command can be configured to first test the USB 2.0 DP&DN signal transmission rate of the USB 2.0 interfaces in each test interface 200, then the USB 2.0 DP&DN signal transmission rate of the USB 3.0 interfaces in each test interface 200, then the USB 3.0 TX&RX signal transmission rate of the USB 3.0 interfaces in each test interface 200, or other test orders can be set as needed; no restrictions are shown here.

[0058] It should be noted that the test commands can be either step-by-step test commands or overall test commands, which testers can choose according to their needs. Under step-by-step test commands, based on the pre-set test sequence, testers need to input control commands multiple times throughout the test process. That is, the number of control commands input corresponds to the number of interfaces 200 to be tested, ultimately achieving transmission rate testing of multiple interfaces 200. Under the control of step-by-step test commands, the controllability and real-time monitoring of the test can be effectively improved. Under overall test commands, testers only need to input a control command once. Based on the pre-set test sequence, the main control unit 40 sequentially controls the multiplexer unit 20 to connect the corresponding interfaces to complete the test. Under the control of overall test commands, the test is fully automated, and the total test time is effectively controlled, improving test efficiency.

[0059] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] Finally, it should be noted that the above are merely preferred embodiments and the technical principles applied in this utility model. Those skilled in the art will understand that this utility model is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. Therefore, although the utility model has been described in detail through the above embodiments, this utility model is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this utility model, and the scope of this utility model is determined by the scope of the appended claims.

Claims

1. A testing device for a USB 3.0 device, characterized in that, The testing device includes at least one testing module; the testing module includes a test interface connection unit and a multiplexer unit. The interface under test connection unit is electrically connected to the multiplexer unit; The interface under test connection unit includes at least four USB 3.0 test interfaces, each of which supports connection to both USB 2.0 and USB 3.0 interfaces under test; The multiplexer unit sequentially connects to the target test interfaces according to a set test order to perform tests on at least one of the interfaces to be tested, wherein the target test interface is the USB 3.0 test interface connected to the interface to be tested.

2. The testing apparatus for USB 3.0 devices according to claim 1, characterized in that, The multiplexer unit includes at least a first switch supporting the USB 3.0 standard and a second switch supporting the USB 2.0 standard; Each of the USB 3.0 test interfaces is electrically connected to the first switch via a unidirectional differential signal line; Each of the USB 3.0 test interfaces is electrically connected to the second switch via a bidirectional differential signal line.

3. The testing apparatus for USB 3.0 devices according to claim 1, characterized in that, The testing device also includes a detection signal receiving unit; The detection signal receiving unit is electrically connected to the multiplexer unit and is used to receive the test signal of the connected target test interface.

4. The testing apparatus for USB 3.0 devices according to claim 3, characterized in that, The detection signal receiving unit includes at least one USB 3.0 interface.

5. The testing apparatus for USB 3.0 devices according to claim 2, characterized in that, The testing device also includes a main control unit; The main control unit is electrically connected to the first switch and the second switch in the multiplexer unit, respectively; the main control unit is electrically connected to the host computer via a serial port; The main control unit is configured to receive test instructions from the host computer and control the connection or disconnection between the first switch, the second switch and each of the interfaces to be tested based on the set test sequence carried in the test instructions.

6. The testing apparatus for USB 3.0 devices according to claim 2, characterized in that, The USB 3.0 interface is electrically connected to the first switch via a unidirectional differential signal line; The USB 3.0 interface is electrically connected to the second switch via a bidirectional differential signal line.

7. The testing apparatus for USB 3.0 devices according to claim 5, characterized in that, The testing device also includes a power switch; The power switch is electrically connected to each of the USB 3.0 test interfaces and the main control unit, respectively; The power switch is used to connect the currently tested USB 3.0 test interface to power under the control of the main control unit.

8. The testing apparatus for USB 3.0 devices according to claim 7, characterized in that, The testing device also includes a power supply unit; The power supply unit is electrically connected to the power switch.

9. The testing apparatus for USB 3.0 devices according to claim 5, characterized in that, The main control unit is electrically connected to the first switch and the second switch in the multiplexer unit through a general-purpose input / output interface.

10. The testing apparatus for a USB 3.0 device according to claim 3, characterized in that, The testing device also includes a host computer; The detection signal receiving unit is electrically connected to the host computer.

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