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38 results about "Conscious State" patented technology

A minimally conscious state (MCS) is a disorder of consciousness distinct from persistent vegetative state and locked-in syndrome.Unlike persistent vegetative state, patients with MCS have partial preservation of conscious awareness. MCS is a relatively new category of disorders of consciousness.

Conscious state detection method based on multi-mode brain-computer interface

The invention discloses a conscious state detection method based on a multi-mode brain-computer interface. The conscious state detection method includes the steps that two photos are displayed on a graphical user interface, and a user wanting to select one photo can keep an eye on the corresponding photo and silently count the times of flicking of a photo frame; SSVEP (steady state visual evoked potential) is generated by means of flicking of the corresponding photo, and P300 electric potential is generated by means of flicking of the photo frame; a scalp electroencephalogram signal is acquired via a head-wear electroencephalogram acquiring hat and is recorded by a portable amplifier; the scalp electroencephalogram signal is duplicated in two copies which enter into P300 electric potential detection and SSVEP detection respectively; normal conscious state of the user is assessed and determined according to detection results. The conscious state detection method based on the multi-mode brain-computer interface has the advantages that whether the user can recognize a specified object (a photo of the own face or a photo of another's face) or not is determined by means of detecting P300 and SSVEP of the user, and whether the user is conscious or not can be recognized effectively.
Owner:华南脑控(广东)智能科技有限公司

High-security payment system and method

The invention discloses a high-security payment system and a method. The system comprises a payment device, a terminal device and a cloud. The terminal device comprises an acquisition module, a judgment module, a first control module and a first communication module. The acquisition module acquires the current physical state parameters of a user and the preset parameter range of the cloud, wherein the parameter range corresponds to the body state parameters of the user in the non-conscious state. The judgment module judges whether the current physical state parameters of the user are within the preset parameter range or not so as to judge whether the user is in the non-conscious state or not. The first control module generates a corresponding control command according to the judgment result of the judgment module and sends a payment put-off control instruction to the payment device to put off the payment when the user in the non-conscious state. An alarm module sends the corresponding alarm information according to the control command. Therefore, the physical state characteristics of the user are detected and uploaded to the cloud. In combination with a large amount of user information stored in the cloud, a preset parameter range corresponding to the user can be obtained. In this way, the judgment accuracy is improved.
Owner:BEIJING QIHOO TECH CO LTD

Portable anesthesia and operation integrated system

The invention belongs to the technical field of anesthesia, and discloses a portable anesthesia and operation integrated system which comprises a physiological data acquisition module, a main control module, an anesthesia module, an anesthesia control module, an anesthetic dosage calculation module, an operation module, a lighting module and a display module. The anesthesia control module collects electroencephalogram analog signals in the anesthesia process of a patient in real time, the electroencephalogram analog signals are converted to extract a physiological feature value system, and judgment is conducted according to the physiological feature value system through the machine model; the working mode of the anaesthesia machine is regulated and controlled according to the judgment result, automation of the process of judging and regulating the anaesthesia machine is achieved, and on the basis that the accuracy of judging the consciousness state and the breathing state of the patient is improved, the real-time performance of regulation and control is guaranteed; the dosage of gaseous anesthetic in the whole anesthesia process can be accurately calculated through the anesthetic dosage calculation module, errors caused by manual calculation are avoided, and the accuracy and precision of a liquid anesthetic dosage calculation result are effectively improved.
Owner:史玲强

Method and system for marking data types of EEG signals in awake state

The invention relates to an electroencephalogram data type annotation method and system in a conscious state, wherein the method comprises the following steps that after a user starts a sleeping process, an electroencephalogram sample of the user is collected; the electroencephalogram sample is subjected to wavelet decomposition; the signal rebuilding is performed according to the wavelet coefficient of the set low frequency band to obtain an electroencephalogram; the sample entropy of the electroencephalogram is calculated, and is compared with a pre-calculated sample entropy threshold vale; if the sample entropy is greater than the sample entropy threshold value, the signal type of the electroencephalogram sample is annotated into the conscious state. By using the technical scheme, the method and the system have the advantages that the electroencephalogram is prevented from being interfered; the conscious state of the electroencephalogram is accurately detected; in addition, the effective data type annotation is performed, so that the recognition accuracy of a personnel classifier trained by using the annotated electroencephalogram sample is higher; the reliability of the detection result of the personnel sleeping stage in the later period is also improved.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

A state-of-consciousness detection system based on a multimodal brain-computer interface

The invention discloses a conscious state detection method based on a multi-mode brain-computer interface. The conscious state detection method includes the steps that two photos are displayed on a graphical user interface, and a user wanting to select one photo can keep an eye on the corresponding photo and silently count the times of flicking of a photo frame; SSVEP (steady state visual evoked potential) is generated by means of flicking of the corresponding photo, and P300 electric potential is generated by means of flicking of the photo frame; a scalp electroencephalogram signal is acquired via a head-wear electroencephalogram acquiring hat and is recorded by a portable amplifier; the scalp electroencephalogram signal is duplicated in two copies which enter into P300 electric potential detection and SSVEP detection respectively; normal conscious state of the user is assessed and determined according to detection results. The conscious state detection method based on the multi-mode brain-computer interface has the advantages that whether the user can recognize a specified object (a photo of the own face or a photo of another's face) or not is determined by means of detecting P300 and SSVEP of the user, and whether the user is conscious or not can be recognized effectively.
Owner:华南脑控(广东)智能科技有限公司

Electroencephalogram data type annotation method and system in conscious state

The invention relates to an electroencephalogram data type annotation method and system in a conscious state, wherein the method comprises the following steps that after a user starts a sleeping process, an electroencephalogram sample of the user is collected; the electroencephalogram sample is subjected to wavelet decomposition; the signal rebuilding is performed according to the wavelet coefficient of the set low frequency band to obtain an electroencephalogram; the sample entropy of the electroencephalogram is calculated, and is compared with a pre-calculated sample entropy threshold vale; if the sample entropy is greater than the sample entropy threshold value, the signal type of the electroencephalogram sample is annotated into the conscious state. By using the technical scheme, the method and the system have the advantages that the electroencephalogram is prevented from being interfered; the conscious state of the electroencephalogram is accurately detected; in addition, the effective data type annotation is performed, so that the recognition accuracy of a personnel classifier trained by using the annotated electroencephalogram sample is higher; the reliability of the detection result of the personnel sleeping stage in the later period is also improved.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

Information-epidemic disease co-evolution analysis method under action of dynamic multi-source information and behavior response

The invention discloses an information-epidemic disease co-evolution analysis method under the action of dynamic multi-source information and behavior response. The method comprises the following steps: firstly, constructing a multi-layer sequential network model with coupled node parts; then constructing an unconsciousness-consciousness-unconsciousness, susceptibility-infection-susceptibility model analysis information-epidemic disease propagation dynamics process; then describing conversion between an epidemic disease state and an information state of the node, and deriving an epidemic disease threshold value betac; then simulating a dynamic evolution process of epidemic propagation and information diffusion; and finally, counting the proportion of the infected state nodes and the conscious state nodes in the network in a steady state, and completing an information-epidemic collaborative evolution process. According to the method, the influence of individual time-varying self-consciousness and behavior response on information-epidemic disease co-evolution is considered in a multi-layer sequential network with partially coupled nodes, state conversion of the nodes is described through a micro Markov chain method, and a critical threshold value beta c of the epidemic disease is theoretically solved; and guidance is provided for intervention and control of COVID-19 or other sudden epidemic diseases possibly outbreak in the future.
Owner:SHANGHAI UNIV

A device for predicting the state of consciousness of the human brain

ActiveCN107993714BHigh imaging featuresHigh correlation for prognostic analysisImage enhancementImage analysisPattern recognitionState prediction
The invention relates to the technical field of medical imaging, and specifically provides a device for predicting the conscious state of the human brain, aiming at solving the technical problem of how to accurately predict the conscious state of the human brain. For this purpose, the device for predicting the state of consciousness of the human brain in the present invention includes a prediction model of the state of consciousness, which can predict the state of consciousness of the human brain according to the imaging characteristics of the human brain and the corresponding clinical information. Specifically, the imaging feature calculation module in the state of consciousness prediction model can calculate the imaging features that characterize the brain connection state of the patient, the imaging feature screening module can screen the imaging features that are highly correlated with prognosis, and the imaging feature processing module can The imaging features and clinical information are combined into a new feature vector, and the model training module can train the partial least squares regression model based on the feature vector to obtain the final prediction model. The predicting device in the present invention takes both clinical information and image detection information into account, and thus can comprehensively and effectively predict the state of brain consciousness.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI
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