Hard-disc Active-lamp constant-frequency-flickering control system and method

A control system and control method technology, applied in the field of hard disk, can solve the problems of inconsistent frequency diversity of ACTIVITYLED signal square wave, the human eye cannot recognize the flicker rate, inconsistency, etc., to avoid the effect of stopping misjudgment and metastability problems

Inactive Publication Date: 2017-08-29
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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AI Technical Summary

Problems solved by technology

Different hard disks have the problem of frequency diversity and inconsistency of the ACTIVITY LED signal square wave, and there are situations wh

Method used

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  • Hard-disc Active-lamp constant-frequency-flickering control system and method
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  • Hard-disc Active-lamp constant-frequency-flickering control system and method

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Embodiment Construction

[0029] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0030] The present invention provides a fixed-frequency flickering control system for the Active light of a hard disk, such as figure 2 As shown, it includes: hard disk edge detection module 1, flicker frequency control module 2, output control module 3, multiple LED lights 4;

[0031] The hard disk edge detection module 1 is connected with the flicker frequency control module 2, and the...

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Abstract

The invention provides a hard-disc Active-lamp constant-frequency-flickering control system and method. The method includes the steps that reading-and-sporting action information of a hard disc is obtained through a hard-disc edge detection module, and the ACTIVVITY edge information of the hard disc is sent to a flickering frequency control module; the flickering frequency control module receives the ACTIVVITY edges of the hard disc, and all the ACTIVVITY edges of the hard disc are measured through a built-in counter; when the hard disc is located on the ACTIVVITY edges, control signals ACT-OUT are located at the low level, and the hard disc is located at a non-ACTIVITY edge, the control signals ACT-OUT are in the original state; the ACT-OUT level state is detected in real time through an output control module, and when ACT-OUT is located at the low level, LED lamps are controlled to be lighted on; when ACT-OUT is located at the high level, the LED lamps are controlled to be lighted off. Misjudging of users when the flickering frequencies of the LED lamps of all the hard discs are inconsistent is prevented.

Description

technical field [0001] The invention relates to the field of hard disks, in particular to a control system and a control method for an Active light of a hard disk to flicker at a fixed frequency. Background technique [0002] With the continuous improvement of server storage requirements, multi-hard disk installation is a major development direction today. ACTIVITYLED, as an indicator signal of hard disk activity, has an important prompt function for R&D personnel and customers. In the existing hard disk backplane design, the ACTIVITYLED indicator signal is directly output by the hard disk as the control signal of ACTIVITYLED; figure 1 shown. Different hard disks have the problem of diversity and inconsistency in the square wave frequency of the ACTIVITY LED signal, and there are situations where the flickering is too fast and the human eye cannot recognize it and the flickering rate is inconsistent, which affects the customer's judgment. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): G06F11/32G06F11/30
Inventor 季冬冬
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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