High-speed physical layer conformance test pattern activation device for USB 2.0

Abstract

The utility model belongs to the field of USB test equipment, and relates to a high speed physical layer consistency test code type activation device for USB2.0, which comprises a shell, a switch, a visual screen, a first USB interface, a second USB interface, a power supply interface and a control circuit board. The first USB interface is used for being connected with a measured USB Host through a clamp; the second USB interface is used for being connected with a computer; the switch, the visual screen, the first USB interface, the second USB interface and the power supply interface are electrically connected with the control circuit board; the visual screen is used for displaying test information currently activated in real time; the switch is directly used for switching different test code types; and the control circuit board is embedded in the shell. The utility model optimizes the external structure and the component assembly relation, realizes test code type switching without disconnecting the USB connection, directly displays the current code type state through the visual screen, and improves the test efficiency and the test accuracy.

Description

Technical Field

[0001] This utility model relates to a high-speed physical layer conformance test pattern activation device for USB 2.0, belonging to the technical field of USB test equipment. Background Technology

[0002] In USB 2.0 high-speed physical layer conformance testing, testers need to trigger different test patterns using a dedicated activation device to comprehensively verify the performance indicators of the USB host under test. Currently available test pattern activation devices have significant structural design flaws, making it difficult to meet the demands of efficient and accurate testing.

[0003] One type of device lacks any button operation structure. When switching between different test codes during the testing process, the USB connection between the device and the USB Host fixture under test must be disconnected first, and then the corresponding program must be re-programmed on the computer. This is not only cumbersome but also interrupts the testing process, resulting in a significant reduction in testing efficiency. Another type of device uses a jumper structure for program switching but lacks a visual display component. Users cannot intuitively confirm the currently active test code, making them highly susceptible to misjudgment and operational errors, thus affecting the accuracy of test results.

[0004] The structural defects of the existing devices mentioned above result in insufficient continuity and convenience for USB 2.0 high speed physical layer conformance testing, and there is an urgent need for a structurally optimized test pattern activation device to solve the above problems. Utility Model Content

[0005] To address the structural defects of existing USB 2.0 high-speed test pattern activation devices, such as the need to disconnect and re-burn the code when switching patterns and the lack of visual status prompts, the purpose of this invention is to provide a high-speed physical layer conformance test pattern activation device for USB 2.0. By optimizing the external structure and component assembly relationship of the device, it enables test pattern switching without disconnecting the USB connection and displays the current pattern status intuitively on a visual screen, thereby improving the testing efficiency and accuracy of USB.

[0006] The objective of this utility model is achieved through the following technical solution: The present invention discloses a high-speed physical layer conformance test pattern activation device for USB 2.0, comprising a housing, a switch, a visualization screen, a first USB interface, a second USB interface, a power supply interface, and a control circuit board.

[0007] The first USB interface is used to establish a connection with the USB Host under test via a clamp to activate the test pattern; the second USB interface is used to connect to a computer device for program debugging or parameter configuration; the power supply interface is used to connect to an external power source to provide operating power for the entire device. The switch, visualization screen, first USB interface, second USB interface, and power supply interface are all electrically connected to the control circuit board. The visualization screen displays the currently activated test information in real time, including the test pattern number and operating status. Switching between different test patterns can be achieved directly by operating the switch, and the connection between the first USB interface and the clamp, as well as the connection between the clamp and the USB Host under test, does not need to be disconnected during the switching process. The control circuit board is embedded within the housing.

[0008] Further optimizations include integrating the switch, visual screen, first USB port, second USB port, and power supply port onto the casing.

[0009] To further facilitate one-handed operation and optimize the switching mechanism, the switch is a push-button type. The switch includes an upper code pattern switch button, a lower code pattern switch button, a code pattern confirmation button, and a code pattern return button, used for quick activation of the USB 2.0 high-speed physical layer conformance test code pattern. Since the code pattern confirmation button is used more frequently in conjunction with the upper and lower code pattern switch buttons than the code pattern return button, it is positioned closer to them. The code pattern confirmation button, upper code pattern switch button, and lower code pattern switch button are arranged in a triangle, with a spacing of 29-39mm between each pair of buttons for easy one-handed operation. This distance ensures easy access with the thumb or forefinger while preventing accidental activation of adjacent buttons. The code pattern return button is located to the left of the code pattern confirmation button, with a distance of 20-25mm between them. This distance ensures that the code pattern return button, along with the up and down code pattern switch buttons, remains within a range suitable for one-handed operation. The up and down code pattern switch buttons, code pattern confirmation button, and code pattern return button are preferably circular buttons. The up and down code pattern switch buttons are used to switch between different code pattern activation programs. The code pattern confirmation button is used to lock the currently selected code pattern, and the code pattern return button is used to return to the previous menu.

[0010] Further optimization involves using an LCD screen, which is embedded in the center of the front of the casing. The screen size is 1.5 to 3 inches, ensuring that the status information is clear and easy to read.

[0011] Further optimization involves the first and second USB interfaces both adopting standard Type-A USB interfaces, which are arranged side-by-side on the same end face of the device casing. The orientation of the first and second USB interfaces is consistent with that of the power supply interface, facilitating wiring and equipment placement during testing.

[0012] To further optimize the system, the power supply interface is either a Micro-USB interface or a Type-C interface, and is located on the end of the device casing away from the USB interface to avoid mutual interference during wiring.

[0013] Further optimization involves embedding an LCD screen in the center of the front of the housing. The LCD screen is a visualization screen with a resolution of 320×240, and the screen brightness is adaptively adjusted according to the usage environment.

[0014] Further optimized, the outer shell is made of ABS material and molded by injection molding. The overall shape is a cuboid structure with a length of 10cm, a width of 5cm, and a height of 2cm, making it easy to handle and carry.

[0015] Further optimizations include a 66°~68° arc transition along the length of the side walls of the outer shell for comfortable one-handed grip. A row of shallow elliptical grooves is provided on each side wall; simulation analysis shows groove depths of 0.31mm~0.33mm and intervals of 3.8mm~4.2mm, which help to hold the thumb and forefinger in place, providing an anti-slip effect. The back of the outer shell features a row of elliptical protrusions; simulation analysis shows protrusion heights of 0.15mm~0.22mm and intervals of 2.8mm~3.2mm, which facilitate palm grip and provide an anti-slip effect.

[0016] Further optimization includes the installation of matching dust covers at the first USB port, the second USB port, and the power supply port to prevent dust from entering these ports.

[0017] The operating method of the high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model is as follows: the outer shell size is convenient for one-handed holding and portability. During operation, the high-speed physical layer conformance test pattern activation device is connected to an external 5V power supply via a power interface. The first USB interface is connected to the device port of the fixture, and the second USB interface is selectively connected to a computer according to debugging needs. After power is connected, the high-speed physical layer conformance test pattern activation device automatically powers on and initializes, and the visual screen displays the initial interface and the default activated test pattern number. The user can switch between different pattern activation programs by pressing the up and down pattern switching keys on the switch. The pattern confirmation key is used to lock the currently selected pattern, and the pattern return key is used to return to the previous menu. Different test patterns can be cyclically switched using the up and down pattern switching keys, and the visual screen updates the currently selected pattern number in real time. Throughout the switching process, the connection between the first USB interface and the fixture, and between the fixture and the USB host under test, remains stable without disconnection, making the operation convenient and efficient.

[0018] Beneficial effects: 1. The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model, through the structural combination of "switch + visualization screen", combined with the reasonable layout of dual USB interfaces and independent power supply interface, can realize the test pattern switching without disconnecting the USB connection, and intuitively display the current pattern status through the visualization screen, thereby improving the testing efficiency and accuracy of USB.

[0019] 2. The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model integrates a switch, a visual screen, a first USB interface, a second USB interface, and a power supply interface into the device housing, and establishes an electrical connection with the internal control circuit board. This allows the operation signal of the switch to be directly transmitted to the control circuit board, which drives the switching logic of different test patterns. It eliminates the need to rely on an external computer to re-program, and eliminates the need to disconnect the first USB interface from the fixture, or the fixture from the USB host under test. The test pattern switching can be completed by operating the switch, which solves the problem of existing products requiring re-programming when switching patterns. The continuity of testing is significantly improved, and the operation efficiency is increased by more than 50%.

[0020] 3. The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model has an LCD screen embedded in the center of the front of the housing. The screen size is 1.5-3 inches. The visual screen of this utility model displays the status of the currently activated test pattern in real time. Users can intuitively confirm the operation results, effectively avoid test errors caused by pattern misjudgment, and improve test accuracy.

[0021] 4. The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model integrates a switch, a visualization screen, a first USB interface, a second USB interface, and a power supply interface on a housing; the control circuit board is embedded inside the housing. This utility model has a compact structure, reasonable layout, and small overall size, making it easy to carry and use for on-site testing, and can adapt to the needs of different testing scenarios such as laboratories and production lines.

[0022] 5. The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model uses standard Type-A USB interfaces for both the first and second USB interfaces, which are arranged side-by-side on the same end face of the device casing. The orientation of both the first and second USB interfaces is consistent with that of the power supply interface, facilitating wiring and device placement during testing. The power supply interface uses a Micro-USB or Type-C interface and is located at the end of the device casing furthest from the USB interfaces to avoid mutual interference during wiring.

[0023] 6. The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this utility model has optimized the size and position layout of the upper pattern switching key, lower pattern switching key, pattern confirmation key, and pattern return key to facilitate one-handed operation and operation frequency, which can further improve the convenience and efficiency of one-handed operation of the high-speed physical layer conformance test pattern activation device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the high-speed physical layer conformance test pattern activation device for USB 2.0 according to this utility model; Figure 2 This is a front structural diagram of the high-speed physical layer conformance test pattern activation device for USB 2.0 according to this utility model; In the diagram: 1-shell, 2-switch, 3-visual screen, 4-first USB interface, 5-second USB interface, 6-power supply interface; 2.1-upper code pattern switch button, 2.2-lower code pattern switch button, 2.3-code pattern confirmation button, 2.4-code pattern return button. Detailed Implementation

[0025] To better illustrate the purpose and advantages of this utility model, the following description, in conjunction with the accompanying drawings and examples, will further explain the content of the utility model.

[0026] Example 1: The high-speed physical layer conformance test pattern activation device for USB 2.0 disclosed in this embodiment includes a housing 1, a switch 2, a visualization screen 3, a first USB interface 4, a second USB interface 5, a power supply interface 6, and a control circuit board.

[0027] The USB 2.0 high speed physical layer conformance test pattern activation device includes a device housing 1. The device housing 1 is made of ABS material and is injection molded. It has an overall rectangular structure with a length of 10cm, a width of 5cm, and a height of 2cm, making it easy to handle and carry. The control circuit board is embedded in the housing.

[0028] A 2-inch LCD screen is embedded in the center of the front of the device housing 1. The LCD screen is also known as the visualization screen 3. The screen has a resolution of 320×240 and can clearly display information such as test code number and device working status. The screen brightness can be adaptively adjusted according to the usage environment.

[0029] To further facilitate one-handed operation and optimize the switching mechanism, the switch 2 is a push-button type. Switch 2 includes an upper code pattern switching button 2.1, a lower code pattern switching button 2.2, a code pattern confirmation button 2.3, and a code pattern return button 2.4, used for quick activation of the USB 2.0 high-speed physical layer conformance test code pattern. Since the code pattern confirmation button 2.3 is used more frequently in conjunction with the upper and lower code pattern switching buttons 2.1 and 2.2 than the code pattern return button 2.4, the code pattern confirmation button 2.3 is positioned closer to the upper and lower code pattern switching buttons 2.1 and 2.2 than the code pattern return button 2.4. That is, the code pattern confirmation button 2.3, upper and lower code pattern switching buttons 2.1 and 2.2 are arranged in a triangle, with a spacing of 32mm between each pair of buttons for easy one-handed operation. This distance ensures that the thumb or forefinger can easily reach the button while preventing accidental activation of adjacent buttons. The code pattern return key 2.4 is located to the left of the code pattern confirmation key 2.3. The distance between the code pattern return key 2.4 and the code pattern confirmation key 2.3 is 20~25mm, ensuring that the distance between the code pattern return key 2.4 and the upper code pattern switch key 2.1 and lower code pattern switch key 2.2 is still within the range that facilitates one-handed operation. The upper code pattern switch key 2.1, lower code pattern switch key 2.2, code pattern confirmation key 2.3, and code pattern return key 2.4 are preferably circular buttons. The upper code pattern switch key 2.1 and lower code pattern switch key 2.2 are used to switch between different code pattern activation programs, enabling quick activation of 8 commonly used USB 2.0 high speed physical layer consistency test codes. The code pattern confirmation key 2.3 is used to lock the currently selected code pattern, and the code pattern return key 2.4 is used to return to the previous menu.

[0030] The outer shell 1 is made of ABS material and is formed by injection molding. It has a rectangular structure with a length of 10cm, a width of 5cm and a height of 2cm, making it easy to handle and carry.

[0031] The outer shell 1 has a 67° arc transition on both sides along its length to facilitate one-handed grip. A row of shallow elliptical grooves is provided on each side wall; according to simulation, the groove depth is 0.32mm and the spacing is 3.9mm. The groove depth helps to hold the thumb and forefinger, providing an anti-slip function. The back of the outer shell 1 has a row of elliptical protrusions; according to simulation, the height of the protrusions is 0.18mm and the spacing is 3.0mm. These protrusions facilitate palm grip and provide an anti-slip function.

[0032] The right side of the device housing 1 has two standard USB-A ports arranged side-by-side, namely a first USB port 4 and a second USB port 5, with a center-to-center distance of 1.5cm. The first USB port 4 is used to connect to the USB host under test and transmit the test pattern activation signal; the second USB port 5 is used to connect to a computer for initial program burning or subsequent function debugging. The rear side of the device housing 1 has a Type-C power supply port 6, which supports 5V DC power input. By connecting an external power adapter or power bank via a power cord, the device can be powered. The power supply port 6 is electrically connected to the internal control circuit board via wires to ensure stable power transmission.

[0033] The control circuit board inside the device is mounted to the internal cavity of the device housing 1 using four fixing screws. The switch 2, visualization screen 3, first USB interface 4, second USB interface 5, and power supply interface 6 are all electrically connected to the control circuit board by soldering. It should be noted that in this embodiment, the control circuit board uses a readily available and mature USB 2.0 communication module and a microcontroller control module. Its internal circuit structure is existing technology. This utility model does not involve improvements to the circuit principle or program algorithm, but only protects the external structure of the device and the assembly relationship of each component.

[0034] The operating method of the USB 2.0 high-speed physical layer conformance test pattern activation device disclosed in this embodiment is as follows: the casing size is convenient for one-handed holding and portability. During operation, the high-speed physical layer conformance test pattern activation device connects to an external 5V power supply via power interface 6, and the first USB interface 4 is connected to the USB interface of the USB host under test. The second USB interface 5 can be selectively connected to a computer according to debugging needs. After power is connected, the device automatically powers on and initializes, and the visual screen 3 displays the initial interface and the default activated test pattern number. The user can quickly activate eight commonly used USB 2.0 high-speed physical layer conformance test patterns using the upper pattern switching key 2.1 and the lower pattern switching key 2.2. The visual screen 3 updates and displays the currently selected pattern number in real time. The pattern confirmation key 2.3 is used to lock the currently selected pattern, and the pattern return key 2.4 is used to return to the previous menu. Throughout the switching process, the connection between the first USB interface 4 and the USB host under test remains stable and does not need to be disconnected, making the operation convenient and efficient.

[0035] The above detailed description further illustrates the purpose, technical solution, and beneficial effects of the utility model. It should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A high-speed physical layer conformance test pattern activation device for USB 2.0, characterized in that: It includes a casing, a switch, a visual screen, a first USB port, a second USB port, a power supply interface, and a control circuit board; The first USB interface is used to connect to the USB Host under test via a clamp; the second USB interface is used to connect to a computer device; the power supply interface is used to connect to an external power source; the switch, the visualization screen, the first USB interface, the second USB interface, and the power supply interface are all electrically connected to the control circuit board; the visualization screen is used to display the currently active test information in real time; different test codes can be switched directly by operating the switch; the control circuit board is embedded in the housing.

2. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 1, characterized in that: The toggle switch, visual screen, first USB port, second USB port, and power supply port are integrated into the casing.

3. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 1 or 2, characterized in that: The switch is a push-button type; the switch includes an upper code pattern switch button, a lower code pattern switch button, a code pattern confirmation button, and a code pattern return button; the code pattern confirmation button, the upper code pattern switch button, and the lower code pattern switch button are arranged in a triangle, with the distance between each pair of buttons being convenient for one-handed operation, and the distance between each pair of buttons is 29~39mm; the code pattern return button is located to the left of the code pattern confirmation button, and the distance between the code pattern return button and the code pattern confirmation button is 20~25mm.

4. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 3, characterized in that: The up code pattern switch key, down code pattern switch key, code pattern confirmation key, and code pattern return key are all round buttons; The up and down code pattern switching keys are used to switch between different code pattern activation programs; the code pattern confirmation key is used to lock the currently selected code pattern, and the code pattern return key is used to return to the previous menu.

5. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 3, characterized in that: The visualization screen is an LCD display screen, which is embedded in the center of the front of the casing. The screen size is 1.5 to 3 inches, and the resolution of the LCD display screen is 320×240.

6. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 3, characterized in that: Both the first USB interface and the second USB interface use standard USB Type-A interfaces and are arranged side by side on the same end face of the device casing. The orientation of the first USB interface and the orientation of the second USB interface are consistent with those of the power supply interface. The power supply interface is either a Micro-USB interface or a Type-C interface, and is located at the end of the casing away from the USB interface.

7. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 3, characterized in that: The outer shell is made of ABS material and is formed by injection molding. It has a rectangular structure with a length of 10cm, a width of 5cm, and a height of 2cm.

8. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 3, characterized in that: The two side walls of the outer shell have a 66°~68° arc transition along the length direction; the two side walls of the outer shell are provided with a row of elliptical shallow groove structures, the groove depth is 0.31mm~0.33mm, and the interval is 3.8mm~4.2mm.

9. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 5, characterized in that: The back of the outer shell has a row of elliptical protrusions with a height of 0.15mm to 0.22mm and a spacing of 2.8mm to 3.2mm.

10. The high-speed physical layer conformance test pattern activation device for USB 2.0 as described in claim 9, characterized in that: The first USB port, the second USB port, and the power supply port are each equipped with a matching dust cover.

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