Speech recognition method, system and logistics sorting system for logistics sorting place names based on continuous mixed Gaussian hmm model

Abstract

The invention discloses a logistics sorting place name speed recognition method, system and logistics sorting system based on a continuous Gaussian mixture HMM. The method includes the following steps: receiving an unknown place name speech signal, and performing preprocessing; performing endpoint detection through an improved short-time average energy and zero-crossing rate double-threshold endpoint detection method and performing extraction to form an N*39 characteristic matrix; substituting the N*39 characteristic matrix into an established place name speech model library, obtaining the output probability of the continuous Gaussian HMM corresponding to each type of place name speech signals, and recognizing the characteristic matrix of the unknown place name speech signal as the category with the largest output probability. The logistics sorting place name speed recognition method based on the continuous Gaussian mixture HMM is exquisite in design, and aiming at the characteristics of place name speech isolated words, a Hidden Markov Model (HMM) is utilized to establish the place name speech recognition model library and place name speech recognition is performed, thereby providing accurate address information for effectively performing article sorting, and realizing an effective combination of a speech recognition technology and a logistics sorting technology.

Description

technical field [0001] The invention relates to a voice recognition method, system and logistics sorting system, in particular to a voice recognition method, system and logistics sorting system for logistics sorting place names based on a continuous mixed Gaussian HMM model. Background technique [0002] With the rapid development of the economy and the increasingly prominent trend of globalization, the modern logistics industry has achieved unprecedented development in developed countries, and has produced huge economic and social benefits. Logistics resources include transportation, warehousing, sorting, packaging, Distribution, etc. These resources are scattered in multiple fields, including manufacturing, agriculture, distribution, etc. [0003] In the sorting process, sorting is basically carried out manually at this stage. Since the workers are in a noisy working environment for a long time, they will inevitably have a certain sense of fatigue in their minds and bodies...

AI Technical Summary

Problems solved by technology

[0005] At present, there are few relevant reports on logistics sorting based on voice recognition of place names in the market, so it is necessary to study a sorting system with high sorting efficiency and more accurate sorting

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