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System for automatic testing USB compatibility

An automatic testing and compatibility technology, applied in the testing field, can solve the problems of low testing efficiency, insufficient testing, and large occupation of human resources, and achieve the effects of easy implementation, improved efficiency, and reduced labor costs.

Inactive Publication Date: 2009-07-01
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only takes up a lot of human resources, but also because the testing process must involve plugging and unplugging the USB device multiple times, the manual testing method will lead to low testing efficiency and more likely to lead to insufficient testing

Method used

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  • System for automatic testing USB compatibility
  • System for automatic testing USB compatibility
  • System for automatic testing USB compatibility

Examples

Experimental program
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Effect test

Embodiment 1

[0050] refer to image 3 , in this embodiment, the switch units in the multiple data transmission paths are relay groups, and the PC and the USB device to be tested all have USB2.0 interfaces, which are respectively used to communicate with the PC and the USB to be tested The two USB ports of the device are also USB2.0 ports. In this embodiment, the USB devices to be tested need to be tested under USB2.0 and USB1.1 respectively.

[0051] The USB speed conversion module includes two data transmission paths, namely a high-speed data transmission path and a full-speed data transmission path. The high-speed data transmission path is connected in series with a relay group A, and the relay group A is used to connect or disconnect the high-speed data transmission path under the control of the microcontroller; the full-speed data transmission path is connected in series with a USB1. 1 hub and a relay group B, the USB1.1 hub is used to convert the data transmission speed on the full-...

Embodiment 2

[0058] The test of USB device compatibility not only includes the above-mentioned plug-in test and sleep / standby test, but also includes many aspects of testing, such as the test of USB camera compatibility, and the USB camera transmission of the USB camera is also required. A test of image data correctness and stability. Figure 5 The second preferred embodiment of the system for automatically testing the compatibility of USB camera devices provided by the present invention is given. In this embodiment, the USB device to be tested is a USB camera device. This embodiment is mainly aimed at the test of the correctness and stability of the image data transmitted by the USB camera when the USB camera is plugged and unplugged multiple times or when the PC recovers from sleep / standby. Carry out under USB1.1, the USB interface speed conversion device of the present embodiment and Figure 4 The structures in the illustrated embodiments are the same, and their USB interface speed co...

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Abstract

The system for automatically testing the compatibility of USB devices provided by the invention uses a USB interface speed conversion module to convert the speed of the USB interface according to the control command of the PC, so as to realize the compatibility test of the USB devices at different USB interface speeds. It can be seen that it replaces the traditional test method of manually testing the compatibility of USB devices, reduces labor costs, improves efficiency, is also easy to implement, and realizes automatic detection of USB devices after multiple plugs and unplugs or PCs recover from sleep / standby status Check whether there are problems such as image stop, wrong color, image misalignment and incoherent image display in the transmitted video stream.

Description

technical field [0001] The invention relates to the field of testing, in particular to a system for automatically testing the compatibility of USB devices. Background technique [0002] The universal serial bus (Universal Serial Bus; USB) peripheral device interface is jointly formulated by seven hardware and software manufacturers including Interl, Compaq, NEC, DEC, IBM, Northern Telecom, and Microsoft. The parallel ports or serial ports used by personal computers are much faster, so there are various types of computer peripherals that match it, such as network cards that support USB interfaces, USB cameras, USB Mouse, etc., these USB devices not only support the plug-and-play function, but also can be used without rebooting. [0003] With the development of interface communication technology, the USB interface standard has also undergone some changes. In the market, there are two types of interfaces, USB1.1 and USB2.0. Therefore, to test the compatibility between the USB...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/267
Inventor 涂坚游明琦
Owner VIMICRO CORP
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