Method and device for detecting single board hot plug

A detection method and detection device technology, applied in error detection/correction, instruments, electrical digital data processing, etc., can solve problems such as single board misoperation, occupying panel position, and single board hot swap detection missed judgment, etc., to reduce The effect of burden, avoidance of misjudgment and missed judgment

Active Publication Date: 2013-03-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there are two main schemes for board hot-swapping detection: one is to perform simple filter processing on the in-position signal. Unplug de...

Method used

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  • Method and device for detecting single board hot plug
  • Method and device for detecting single board hot plug
  • Method and device for detecting single board hot plug

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Embodiment Construction

[0058] figure 2 It is a schematic diagram of the composition and structure of the single board hot plug detection device of the present invention, such as figure 2 As shown, it at least includes a board presence information detection unit and a board presence information processing unit, wherein,

[0059] The board presence information detection unit is used to acquire the board presence information and output it to the board presence information processing unit. The specific implementation of the board presence information detection unit can adopt the existing method, such as figure 1 As shown in : the board presence signal is connected to the board ground on the first board, and connected to the power supply through a resistor on the second board. When the first veneer is separated from the second veneer, the veneer in-position signal is at a high level; when the first veneer and the second veneer are connected, the veneer in-position signal is at a low level. The desig...

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Abstract

The invention discloses a method and a device for detecting single board hot plug. A single board plug detection result is determined by detecting the lasting time of the state of a single board after position information is changed and comparing the lasting time with preset time threshold value, according to the comparison result and the state of the single board after the position information is changed, effective single board plug operation and ineffective single board plug operation are clearly distinguished, error judgment and judgment loss for single board hot plug detection are well avoided, and the burden of a main control unit processor is reduced.

Description

technical field [0001] The invention relates to single-board plug-in management technology in data communication, in particular to a single-board hot-plug detection method and device. Background technique [0002] Board hot-swapping technology is used more and more in the design of data communication systems. After the board is hot-swapped, the main control unit passes the board in-position signal (the board in-position signal is displayed as the board after the board is inserted stably). In-position, after the board is completely pulled out, the board-in-position signal shows that the board is not in-position) to identify the change of the board state, so as to perform corresponding processing on the plug-in board. [0003] figure 1 It is a schematic diagram of an existing single board hot plug detection circuit, such as figure 1 As shown, including the plug-in single board, the main control unit, the resistor, and the power supply, wherein the plug-in single board is cal...

Claims

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Application Information

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IPC IPC(8): G06F11/30H03K21/38
CPCG06F11/3031G06F11/3058
Inventor 刘如民宋海华陈华高雪杰
Owner ZTE CORP
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