Picture frame type electro-oculogram signal acquisition device

Abstract

The utility model discloses a spectacle frame type electro-oculogram signal acquisition device which is used for contacting and acquiring skin around eyes of a tested person and electro-oculogram signals, acquiring the electro-oculogram signals, transmitting the electro-oculogram signals to a signal amplifier and outputting acquired electro-oculogram signal characteristic data of eye muscles of the tested person. The device can conveniently and accurately act on the positions of muscles around the eyes of a detected person required for drug-related detection, so that muscle electric signals are accurately and rapidly obtained, signal data can be output for follow-up evaluation of drug-related conditions of the detected person, and the device has the advantages of being convenient, rapid, non-invasive and high in precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of drug-related detection and identification, and mainly obtains the eye bioelectric signals of the person being tested based on the eye muscle electrical signal technology, and uses them for subsequent drug-related detection through signal processing and transmission. Specifically, it is a frame-type eye electroacoustic signal acquisition device. Background Art

[0002] How to identify and measure drug-related persons is of great significance in drug management. It can help prevent drug abuse, maintain public safety, provide data basis for decision-making, combat drug trafficking, and promote the establishment of a sound drug abuse prevention and control system. The current detection methods mainly include: urine test, blood test, saliva test, etc., but these tests are complicated to sample, the test process is cumbersome, the time is long, and the results cannot be fed back immediately. As for how to quickly and accurately obtain the eye muscle electrical signals of the tested person, there is currently no such equipment on the market. Summary of the invention

[0003] In order to solve the shortcomings and defects of the above-mentioned prior art, the inventor has developed and designed a frame-type electrooculogram signal acquisition device, which can quickly and effectively collect facial electrooculogram data of the person being tested, so as to provide fast and effective electrooculogram data acquisition for subsequent drug-related detection and judgment, and has the advantages of convenience, non-invasiveness, high precision, etc. Specifically, the utility model is implemented as follows: a drug-related detection device based on electrooculogram signal, comprising: a frame body (1), which is used as the structural body of the device and can be worn on the eyes of the person being tested; a plurality of electrode members (2), which are respectively arranged on the inner side of the frame body (1) facing the eyes of the person being tested, and after the frame body (1) is worn, the electrodes can contact the skin around the eye sockets of the person being tested, and the electrode members (2) are connected to the signal amplifier (3) through a wire line, and can obtain the electrical signal obtained by the electrode members (2), amplify and process it, and output it; a power module, which supplies power to the electrode members (2) and the signal amplifier (3) through a built-in power supply or an external power supply.

[0004] Furthermore, the frame body (1) comprises a left eye frame (11) and a right eye frame (12), the left eye frame (11) and the right eye frame (12) being connected as a whole at the top, and the electrode member (2) comprises three electrode members (2), comprising a left eye electrode member (21) and a right eye electrode member (22) mounted on the lower frames of the left eye frame (11) and the right eye frame (12), and an eyebrow center electrode member (23) mounted at the top connection of the left eye frame (11) and the right eye frame (12).

[0005] Furthermore, the electrode member (2) is a metal or composite material electrode, and the electrode contact is exposed on the surface of the frame body (1).

[0006] Furthermore, the electrode member (2) is a sheet-shaped dry electrode, which is installed or attached to the frame body (1) in a strip-shaped sheet structure or a circular structure; wherein the dry electrodes for the left and right eyes are respectively attached vertically to the longitudinal frames of the left and right eye frames (12), and after being worn, they fit the lateral forehead between the frontal lobe and the temporal lobe of the head of the person being tested, close to the temple.

[0007] Furthermore, the dry electrodes for the left and right eyes are respectively installed at the eye sockets which can be located on both sides of the bridge of the nose of the person being tested after wearing.

[0008] Furthermore, the left-eye electrode component (21) and the right-eye electrode component (22) are both main electrodes, and the eyebrow electrode is the reference electrode, and are respectively connected to the signal amplifier (3) through their own lines. After the signal amplifier (3) processes them respectively, they are output through their own corresponding lines.

[0009] Working principle of the utility model: The technology of this scheme is based on the acquisition of electrooculogram signals to provide front-end data collection and transmission for subsequent drug-related detection. Electrooculogram signals are electrical signals generated by the bioelectric activity of the eyeball and eye muscles. The eyeglass frame device with a new structural design provided by the utility model is used to arrange multiple electrodes in the eyeglass frame. After wearing, it contacts the skin surface of the person being tested to obtain electrooculogram signals in a non-invasive manner. The electrodes in the eyeglass device can measure the weak electrical signals generated by the eye muscles by contacting the skin, and these signals are amplified and processed in the device for transmission. The electrooculogram signals are amplified, filtered and denoised by the signal amplifier to enhance the quality and accuracy of the signal. The output data can be easily processed, and a series of characteristic parameters such as amplitude, frequency, energy, etc. can be extracted from the electrooculogram signals for evaluation and analysis of drug-related situations. Since the waveform of the electrooculogram signals of drug addicts is more irregular, with larger amplitude, lower frequency and longer duration, it means that their eye movements are more random, slow and uncoordinated. The electrooculogram (EO) signals of drug addicts change less before and after the stimulus presentation, as shown by a higher baseline level, a lower peak after the stimulus, and a longer recovery time, indicating that they are slower to respond to external information, have lower sensitivity, and have poorer adaptability. The EO signals of drug addicts have smaller differences under different types of stimuli, as shown by lower discrimination between positive and negative stimuli, lower discrimination between novel and familiar stimuli, and lower discrimination between complex and simple stimuli, indicating that they have weaker emotional regulation ability, weaker memory encoding ability, and weaker cognitive processing ability. Therefore, the EO signals of drug addicts are very different from those of normal people, reflecting their serious impairment in psychological function. These differences may be caused by neuronal damage and neurotransmitter imbalance caused by drug abuse, or by individual differences or psychological problems that existed before drug abuse. Therefore, collecting EO signals is a key front-end operation. The drug-related detection device based on EO signals can accurately obtain and analyze the EO signals of the person being tested, providing a real-time and accurate detection basis for the subsequent evaluation of their drug-related situation.

[0010] Beneficial technical effects of the utility model:

[0011] This technical solution uses a glasses device to contact the skin to obtain electrooculographic signals. It does not require any physical intrusion or sampling operation, does not cause any harm to the person being tested, and can provide a comfortable user experience. It has the characteristics of precise collection site positioning, and can directly and accurately complete the collection of electromyographic signals, improving the efficiency and convenience of electromyographic signal collection and operation. This solution can be applied to different scenarios and needs, such as police law enforcement, commercial security, etc., to provide a convenient and accurate drug-related detection tool for related fields. The solution of this utility model has high practicality and feasibility, helps to improve the efficiency and accuracy of drug-related detection, and has important application prospects and social significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural stereogram of a drug-related detection device based on electrooculographic signals of the utility model;

[0013] Figure 2 This is a diagram showing the position distribution of electrodes in a drug detection device based on electrooculographic signals of the utility model;

[0014] Figure 3 A schematic diagram of a drug detection device based on electrooculographic signals using dry electrodes according to the utility model;

[0015] Figure 4 It is a schematic diagram of an integrated structure with built-in integrated signal amplifier, circuit, processor, etc.;

[0016] Among them: 1 frame body, 2 electrode components, 3 signal amplifier, 4 processing module, 11 left eye frame, 12 right eye frame, 21 left eye electrode component, 22 right eye electrode component, 23 eyebrow electrode component. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] Embodiment 1: A drug detection device based on electrooculographic signals, comprising:

[0019] Frame body 1: As the main structure of the device, it can be worn on the eyes of the person being tested. Its function is to position the electrode 2 and ensure the comfort and stability of wearing.

[0020] Electrode 2: Several electrode 2 are arranged on the inner side of the frame body 1 facing the eyes of the person being tested. When the frame body 1 is worn, the electrode 2 can contact the skin around the eye sockets of the person being tested and obtain electromyographic signals. The number and position of the electrode 2 are properly designed to provide more accurate electrooculographic signal acquisition.

[0021] Signal amplifier 3: Signal amplifier 3 is connected to electrode 2 in a built-in or external manner. Its main function is to obtain the electrooculogram signal collected by electrode 2 and amplify it. This can enhance the strength and reliability of the signal and ensure that the subsequent analysis obtains accurate results.

[0022] Power module: The power module supplies power to the electrode 2 and the signal amplifier 3 through a built-in power supply or an external power supply. Its function is to ensure the normal operation of each component of the device, and to ensure long-term use time and stable performance.

[0023] Subsequent processing can be performed by the processing module 4, which can be a built-in program chip, or an external computer, single-chip microcomputer, intelligent mobile device, etc., which can perform subsequent processing on the electromyographic signal to determine whether it is drug-related.

[0024] The optimized design of the frame body 1 includes the connection mode of the left eye frame body 11 and the right eye frame body 12 and the arrangement of the three electrode members 2. The left eye frame body 11 and the right eye frame body 12 are connected as one at the top, and this design makes the frame body 1 more stable and can better adapt to eyes of different sizes.

[0025] The optimized design of the electrode member 2 includes three metal electrode members 2: a left eye electrode member 21, a right eye electrode member 22, and an eyebrow electrode member 23. These electrode members 2 are connected to the signal amplifier 3 through their respective lines to obtain the left eye, right eye, and reference electrical signal data respectively. The electrode members 2 for the left and right eyes serve as the main electrodes, and the eyebrow electrode is the reference electrode. This setting can provide more accurate signal data and help improve the accuracy of drug-related detection.

[0026] In addition, the electrode member 2 can also be a sheet-shaped dry electrode. The dry electrode is installed or attached to the frame body 1 in a long sheet-shaped structure. The dry electrodes of the left and right eyes are respectively installed vertically on the longitudinal frames of the left and right eye frames 12, fitting the side forehead between the frontal lobe and the temporal lobe of the head of the person being tested near the temple. This setting can better contact the skin of the eyes of the person being tested and provide a more reliable electrooculographic signal.

[0027] In this embodiment, the various structural components and functional effects of the drug-related detection device based on electrooculogram signals cooperate with each other to achieve accurate electrooculogram signal acquisition, amplification processing and waveform data analysis, providing an effective and reliable tool for drug-related detection.

[0028] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A frame-type electrooculogram signal acquisition device, characterized in that include: The frame body (1) is used as the structural body of the device and can be worn on the eyes of the person being tested; A plurality of electrode members (2) are respectively arranged on the inner side of the frame body (1) facing the eyes of the person being tested. After the frame body (1) is worn, the electrodes can contact the skin around the eye sockets of the person being tested. The electrode members (2) are connected to a signal amplifier (3) via a wire line, and the electrical signal obtained by the electrode members (2) can be obtained, amplified and output; A power module, which supplies power to the electrode element (2) and the signal amplifier (3) through a built-in power supply or an external power supply; The frame body (1) comprises a left eye frame (11) and a right eye frame (12), wherein the left eye frame (11) and the right eye frame (12) are connected as a whole at the top, and the electrode member (2) comprises three electrode members (2), comprising a left eye electrode member (21) and a right eye electrode member (22) mounted on the lower frames of the left eye frame (11) and the right eye frame (12), and an eyebrow center electrode member (23) mounted at the connection point of the left eye frame (11) and the right eye frame (12) at the top; The left eye electrode piece (21) and the right eye electrode piece (22) are both main electrodes, and the eyebrow electrode is a reference electrode, and are respectively connected to the signal amplifier (3) through their own lines. After the signal amplifier (3) processes them respectively, they are output through their own corresponding lines.

2. The frame-type electrooculogram signal acquisition device according to claim 1, characterized in that: The electrode member (2) is a metal or composite material electrode, and the electrode contact is exposed on the surface of the frame body (1).

3. The frame-type electrooculogram signal acquisition device according to claim 2, characterized in that: The electrode member (2) is a sheet-shaped dry electrode, which is installed or attached to the frame body (1) in a strip-shaped sheet structure or a circular structure; The dry electrodes for the left and right eyes are respectively attached vertically to the longitudinal frames of the left and right eye frames (12), and after being worn, they fit the lateral forehead between the frontal lobe and the temporal lobe of the head of the person being tested, close to the temple.

4. The frame-type electrooculogram signal acquisition device according to claim 1, characterized in that: The dry electrodes for the left and right eyes are respectively installed at the eye sockets which can be located on both sides of the bridge of the nose of the person being tested after wearing.

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