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Reliability predicting method of communication equipment

A communication equipment and reliability technology, applied in computing, instruments, data exchange networks, etc., can solve problems such as unrealistic reliability prediction, delayed acquisition of component failure rate data, and difference in single board or equipment failure rate.

Inactive Publication Date: 2010-12-29
ZTE CORP
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AI Technical Summary

Problems solved by technology

The acquisition time of component failure rate data lags behind the design requirement time, making it unrealistic to use the failure rate accumulation method for reliability prediction
However, due to the software failure caused by the existence of devices with software such as microprocessors and DSPs (digital signal processors), equipment failures are caused, and the failure rates of single boards or equipment with roughly the same circuit vary greatly.

Method used

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  • Reliability predicting method of communication equipment
  • Reliability predicting method of communication equipment
  • Reliability predicting method of communication equipment

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Embodiment Construction

[0027] The present invention utilizes the failure data and repair data of the communication equipment in network operation to predict the reliability of the repairable unit / single board of the communication product, and utilizes the BOM (Bill of Material of the unit / single board, which is a product structure that can be recognized by a computer) data file) form to quickly estimate the corresponding reliability index MTBF. The feature is that the components used in the reworkable unit / single board and the software attached to the unit / single board are considered comprehensively, as well as other human and uncontrollable factors.

[0028] First, the collection method of failure data is described in detail.

[0029] The management of components generally uses code management, which can be divided into major categories, small categories, and sub-subcategories of component categories from the codes.

[0030] 1.1 For the reworkable unit / single board, determine the failure rate of t...

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Abstract

The invention discloses a method for estimating reliability of a communication device, which comprises: collecting the fail data or the repair data of the communication device which is out of order; confirming the failure rate of the communication device according to the fail data or the repair data; the factors influencing the failure rate comprise production factor, hardware failure rate or software failure rate. In the invention, the software factors, the hardware factors and the incidental factors of the communication device are comprehensively considered, so that exact and objective evaluation to the market expectation of products can be made.

Description

technical field [0001] The invention relates to a method for predicting reliability, in particular to a method for predicting reliability of communication equipment. Background technique [0002] Reliability design is an important link in communication product design, and reliability prediction is an essential basic work in reliability design. The commonly used prediction methods mainly include failure rate accumulation method, similar equipment method, similar circuit method, etc. [0003] The failure rate accumulation method uses the reliability data of components to predict the reliability index of the system. It can be further divided into counting method and stress method. The failure rate data of components is mainly based on GJB / Z299C (National Military Standard: Electronic Equipment Reliability Prediction Manual) and MIL-HDBK-217 (US Military Standard: Electronic Equipment Reliability Prediction Manual). [0004] The similar equipment method uses the reliability l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/24G06F17/50G06Q10/00
CPCH04L41/147H04L41/06
Inventor 尤荣贤张学渊
Owner ZTE CORP
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