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USB interface short circuit detection method

A USB interface, short circuit detection technology, applied in the detection of faulty computer hardware, error detection/correction, instruments, etc., can solve the problem of inaccurate results and achieve the effect of increasing efficiency

Pending Publication Date: 2022-02-11
深圳市鑫鑫达电子有限公司
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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a method for short-circuit detection of USB interface, to solve the problem that the result of USB short-circuit detection is not accurate enough, improve the accuracy of detection, and make the detection process more convenient and quick

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Embodiment 1

[0033] see figure 1 , the present embodiment provides a method for USB interface short circuit detection, comprising:

[0034] Step 1, inserting the USB interface to be detected: including an automatic plugging and unplugging USB interface device and a detection device, the automatic plugging and unplugging USB interface device can realize the automatic plugging and unplugging of the USB interface to be detected, and the detection device can detect whether the USB interface is short-circuited; Turn on the power switch, and the automatic plugging and unplugging USB interface device automatically inserts the USB interface to be detected into the port on the detection device;

[0035] As a preferred solution of the present invention, the power switch can control the on-off of the power supply of the detection device and the automatic plug-in USB interface device; the power supply voltage of the port on the detection device is 5V.

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Abstract

The invention relates to the field of short circuit detection, in particular to a USB interface short circuit detection method. The objective of the invention is to solve the problem that the result of USB short circuit detection is imprecise. The method comprises the following steps of: inserting a to-be-detected USB interface; detecting a logic level between the inserted USB interface and a power supply; judging whether the detected USB interface is short-circuited or not; marking the USB interface which is judged to be short-circuited or not; and after the detection is completed, automatically unplugging the detected USB interface from the detection device by an automatic USB interface plugging and unplugging device, and then inserting a next to-be-detected USB interface. The automatic USB interface plugging and unplugging device automatically inserts a to-be-detected USB interface into a port on the detection device, so that the detection efficiency is higher; the logic level between every two of the four signal lines of the USB interface is detected, and the detection result is judged, so that the short circuit problem of the USB interface is detected more meticulously; through a marking device, a mark on the USB interface can be distinguished to know the detection result of the USB interface.

Description

technical field [0001] The invention relates to the field of short circuit detection, in particular to a method for short circuit detection of a USB interface. Background technique [0002] The full name of USB is Universal Serial Bus, its English name is Universal Serial Bus, and USB is its abbreviation. USB is a serial bus standard for connecting computer systems and external devices, and it is also a technical specification for input and output interfaces. USB is an indispensable thing in our modern life. It is widely used in our life. Whether it is a computer for our office or a mobile phone that is often used in daily life, it is indispensable. [0003] Because of this, once a short circuit occurs on the USB interface, it may be discharged, or it may burn the USB device, or even cause a fire or explosion, which will bring huge losses to people. Nowadays, manual detection or software detection is used for USB interface short circuit detection. The former is low in effic...

Claims

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Application Information

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IPC IPC(8): G06F11/22G06F13/42
CPCG06F11/221G06F13/4282
Inventor 黄成金黄成东
Owner 深圳市鑫鑫达电子有限公司
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