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Method and system for detecting ice addict based on multi-channel fNIRS signals

A detection method and multi-channel technology, applied in the direction of diagnostic signal processing, telemetry patient monitoring, diagnostic recording/measurement, etc., can solve the problems of difficult detection of methamphetamine personnel and inability to detect drug abuse, and achieve convenient data processing and short test time Short, good analysis of the effect of the results

Active Publication Date: 2021-04-09
南京睿蜂健康医疗科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional urine and blood testing methods mainly judge whether a person is taking drugs by detecting the components in human urine or blood. However, after a period of time, the components in urine and blood return to normal after the normal metabolism of the human body. whether it takes drugs
Therefore, traditional methods can only detect people who have recently used methamphetamine, but it is difficult to accurately detect people who have not been exposed to methamphetamine for a long time

Method used

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  • Method and system for detecting ice addict based on multi-channel fNIRS signals
  • Method and system for detecting ice addict based on multi-channel fNIRS signals
  • Method and system for detecting ice addict based on multi-channel fNIRS signals

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Embodiment 1

[0054]The embodiment of the present invention discloses a methamphetamine detection method based on the directional transfer function of multi-channel fNIRS signals, which includes calculating the directional transfer function values ​​between the fNIRS signals of two types of subjects in each channel, and generating two types of subjects The directional transfer function matrix of the tester; the value of the directional transfer function of the channel pair with significant differences is used as a classification feature, and is sent to the machine learning algorithm for machine learning model training. The fNIRS signal is extracted in real time, and the multi-channel fNIRS signal of the tester is obtained and saved. After each channel fNIRS signal is subjected to various preprocessing operations, the value of the directional transfer function between the tester's channel fNIRS signals is calculated and generated. The directed transfer function matrix of the tester is sent as...

Embodiment 2

[0085] An embodiment of the present invention provides an electronic device, including a memory and a processor, and also includes some peripherals, such as multiple brain electrodes, etc., and multiple brain electrodes are connected to the electronic device to form a multi-channel fNIRS signal-based Meth Addiction Detection System, which includes:

[0086] The signal extraction module is composed of brain electrodes and their connection channels with electronic equipment, extracts the tester's fNIRS signal in real time through the multi-channel fNIRS channel, obtains the tester's multi-channel fNIRS signal and saves it in the memory;

[0087] A computer software program is also stored in the memory, and the software program is read and executed by the processor for implementing the method for detecting methamphetamine addicts based on multi-channel fNIRS signals disclosed in Embodiment 1 of the present invention. This memory can include:

[0088] The preprocessing and matrix...

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Abstract

The invention relates to a method and a system for detecting ice addict based on multi-channel fNIRS signals. FNIRS signals of a testee is collected in real-time through a multi-channel fNIRS channel, the multi-channel fNIRS signals of the testee is obtained and stored; preprocessing fNIRS signals of each channel, calculating the value of a directed transfer function between the fNIRS signals of each channel, generating a directed transfer function matrix of a testee, and sending the directed transfer function matrix of the testee into a classifier as an input to obtain a detection result. The scheme provided by the invention is based on cranial nerve signals, the defects of traditional ice detection are overcome, a novel ice detection method is provided, the effective time of detection is greatly increased, and after final test, the detection accuracy is greatly improved.

Description

technical field [0001] The invention relates to the technical field of feature detection, in particular to a method and system for detecting methamphetamine addicts based on multi-channel fNIRS signals. Background technique [0002] Meth methamphetamine entered China in the 1990s. Due to the lack of awareness of methamphetamine and the lack of effective detection methods, it is very difficult to detect drug users. [0003] The main component of methamphetamine is methamphetamine, also known as methamphetamine. Because the pure methamphetamine is a transparent crystal, which is very similar to rock sugar, it is also called methamphetamine. Excessive use of methamphetamine will not only make people extremely dependent, but also cause symptoms such as methamphetamine psychosis and schizophrenia. At present, most of the detection methods for ice (methamphetamine) are urine and blood tests. The traditional urine and blood testing methods mainly judge whether a person is taking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455
CPCA61B5/0042A61B5/14546A61B5/1455A61B5/4845A61B5/72A61B5/7203A61B5/7225A61B5/7264
Inventor 高军峰张家琦宋健魏曙光黎峰韦思宏黄伟安曾宣威康倩若湛慧苗
Owner 南京睿蜂健康医疗科技有限公司