Connecting detection method

A technology of connection detection and electrical connection, which is applied in the field of electronic technology applications, can solve problems such as poor practicability, increased use of physical resources, and inconvenient implementation, and achieve the effect of strong practicability and saving physical resources

Active Publication Date: 2015-01-28
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above two methods have certain problems in practical applications, such as: for the first) method, special mechanical contacts need to be provided, which is very inconvenient to implement and not very practical; for the second) In this way, multiple signal lines need to be set, resulting in an increase in the usage of physical resources

Method used

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Embodiment Construction

[0018] Aiming at the problems existing in the prior art, the present invention proposes a brand-new connection detection method, which can save physical resources and has strong practicability.

[0019] In order to make the technical solution of the present invention clearer and clearer, the solution of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0020] figure 1 It is a flowchart of an embodiment of the connection detection method of the present invention. A signal line is set in the main device in advance, and a pull-down resistor is set in the sub-device. When the sub-device is electrically connected to the main device, the pull-down resistor will be connected to the signal line. Such as figure 1 shown, including the following steps:

[0021] Step 11: The main device outputs a high level to the signal line and detects the current of the signal line. If the current is detected, it is determined...

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Abstract

The invention provides a connecting detection method, comprising the following steps of: arranging a signal line in a main apparatus, arranging a pull-down resistor in a sub-apparatus, and connecting the pull-down resistor with the signal line when the sub-apparatus is electrically connected to the main apparatus; and outputting a high level to the signal line by the main apparatus and detecting the current of the signal line, determining the electrical connection of the signal line and the sub-apparatus if the current is detected, and determining the electrical disconnection of the signal line and the sub-apparatus if the current is not detected. By adopting the method, physical resources can be saved and stronger practicability is obtained.

Description

technical field [0001] The invention relates to the application field of electronic technology, in particular to a connection detection method of a main device and a sub-device. Background technique [0002] At present, when two electronic devices are electrically connected, the method of the main device to detect the connection of the sub-device (that is, to detect whether the sub-device has been electrically connected to the main device) is usually as follows: [0003] 1) A mechanical contact is set at the connection of the main device. When the sub-device is electrically connected to the main device, it will cause the closure of the mechanical contact. The main device determines whether the sub-device has connected itself by detecting whether the mechanical contact is closed. make electrical connections; [0004] 2) The main device is electrically connected to the sub-device through multiple signal lines. When the sub-device is electrically connected to the main device, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/02
Inventor 李东声
Owner TENDYRON CORP
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