BCI SIGNAL SECURITY SYSTEM AND METHOD OF USE

Description

1 / 24 “BCI SIGNAL SECURITY SYSTEM AND METHOD OF USE”

[001] This application claims priority over the Chinese patent application filed with the National Intellectual Property Administration of China on April 4, 2023, with application number 202310358178.2 and invention title A BCI Signal Security System and Method of Use, the full content of which is incorporated herein by reference. Technical Area

[002] The present invention relates to the technical field of intelligent information processing, and in particular, to a BCI signal security system and its method of use. Technical Background

[003] A brain-computer interface (BCI) refers to a direct connection established between the brain of a human or animal and an external device, allowing the exchange of information between them. BCIs perform very well in restoring damaged auditory, visual, and motor abilities—for example, they can control implanted prosthetic limbs in the same way as natural limbs. With current technological and knowledge advancements, pioneers in BCI research can convincingly attempt to manufacture BCIs that enhance human functions, not limited to just restoring bodily functions. With the continuous development of science and technology, BCIs have good prospects for the future, potentially helping humans live better lives.

[004] BCIs are mainly divided into implantable and non-implantable. Implantable BCIs involve implanting devices directly into the human body, connecting directly to the brain or nerves. Non-implantable BCIs generally take the form of an adhesive patch, attaching the device to the outside of the body and stimulating the brain or nerves through electrical current, among other methods. Because BCIs primarily act on the brain, their safety requirements are very high.

[005] Existing BCIs do not have a unified standard for the security of BCI signals. Typically, a safety interval is established to determine if BCI signals are within normal safe limits. If Petition 870250091268, dated 06 / 10 / 2025, page 11 / 51 2 / 24 On the contrary, a warning is given about the possible occurrence of problems and the corresponding safety measures are provided. However, the precision and accuracy of these safety measures are not high, and they may cause damage to the object targeted by the BCI signals. Content of the Invention

[006] The objective of the present invention is to provide a BCI signal safety system and its method of use, which can improve BCI safety, increase the effectiveness of BCI use, and prevent safety damage to the target of BCI signals.

[007] To achieve the above objective, the present invention provides the following scheme:

[008] A BCI signal security system comprising: a database module, a data acquisition module, an analysis module and a security module.

[009] The database module is used to store a BCI database, the BCI database includes a BCI signal security model, the BCI signal security model includes the security constraints required for BCI signals of different signals, information sources, information channels, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object.

[010] The data acquisition module is used to obtain BCI signals and safety information from the BCI signals.

[011] The analysis module is used to analyze BCI signals, security information from BCI signals and BCI signal security models, and to obtain appropriate BCI signal security measures.

[012] The security module is used to perform security processing of BCI signals in accordance with appropriate BCI signal security measures, improving the security of BCI signals.

[013] Method of using the aforementioned BCI signal security system, the method comprises:

[014] Establish a BCI database, the BCI database includes a BCI signal security model, the BCI signal security model includes the security constraints required for BCI signals from different signals, information sources, information channels, access methods, modes, Petition 870250091268, dated 06 / 10 / 2025, page 12 / 51 3 / 24 frequency, intensity, time, interval, volume of information and object of reception / influence of the signal.

[015] Obtain BCI signals and safety information from BCI signals.

[016] Analyze through BCI signals, BCI signal security information and BCI signal security model, and obtain appropriate BCI signal security measures.

[017] Perform BCI signal security processing in accordance with appropriate BCI signal security measures, improving BCI signal security.

[018] In some embodiments, the BCI signal security system comprises:

[019] An information acquisition module, used to obtain BCI signals and BCI signal safety information; BCI signals include: mode, type, format, content, function, neurons, information volume, signal intensity, frequency, purpose, object of action, access method and location of the BCI signal; BCI signal safety information refers to information related to the safety restrictions required for BCI signals.

[020] An analysis module, used to take BCI signals and BCI signal security information as input, use the BCI signal security model for analysis, determine whether the BCI signals meet the security constraints, and obtain appropriate BCI signal security measures when the security constraints are met; the BCI signal security model includes the security constraints required for BCI signals from different signals, information sources, information channels, information formats, information contents, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object, as well as the BCI signal security measures required when these security constraints are met.

[021] A security module, used to perform security processing of BCI signals in accordance with appropriate BCI signal security measures.

[022] In some embodiments, the system also includes: a database module, used to store a BCI database, the database Petition 870250091268, dated 06 / 10 / 2025, p. 13 / 51 4 / 24 BCI data includes a BCI signal security model for each user category or for each individual user; the BCI signal security model is obtained by considering the possible impact on BCI signal users of different signals, information sources, information channels, information formats, information content, access methods, modes, frequency, intensity, time, interval, information volume and object of reception / influence of the signal, and by performing customized configurations based on at least one piece of information from the object of action, including population, genetic factors, physiological factors, psychological factors, body factors, life status / life history, exercise situation, work and rest situation, study situation, work situation, illness situation, medications, medical devices, diet, physiological / psychological trauma, surgery, radiation, physiotherapy, rehabilitation, operation, examination and psychological intervention.

[023] The analysis module is also used to determine a suitable BCI signal security model based on the BCI signals and the BCI signal security information before using the BCI signal security model for analysis; the suitable BCI signal security model is a BCI signal security model in the BCI database, or a model obtained by adjusting a BCI signal security model in the BCI database according to the actual situation of the BCI signals.

[024] In some embodiments, in the process of obtaining adequate BCI signal safety measures, it is also necessary to consider the interactions between different dimensions of the BCI signals or between two or more BCI signals.

[025] In some embodiments, the analysis module is also used to define corresponding levels / scores for different analysis results of at least one analysis item for BCI signal security measures, including risk, hazard, complexity, restrictive conditions, effect, time, cost, convenience, economy, integrity / truthfulness / accuracy of information, benefit to the user and harm to the user; calculate the comprehensive level / score of BCI signal security measures based on the corresponding level / score of each analysis item for different BCI signal security measures and the BCI signal security model; and determine the appropriate BCI signal security measures based on the comprehensive level / score. Petition 870250091268, dated 06 / 10 / 2025, page 14 / 51 5 / 24

[026] In some embodiments, the BCI signal safety model also includes the safety constraints required for BCI signals with different contents, functions and effects, as well as the BCI signal safety measures required when these safety constraints are met; the effects include effects on at least one of the following: knowledge, cognition, values, interests, methods, objectives, emotions, state, physical capacity, skills, behavior, intelligence, memory, physiological function, expression, immunity, arousal level and establishment / connection / disconnection of brain synapses.

[027] In some embodiments, the system also includes: a processing module, used to perform at least one translation, matching, conversion or identification operation on BCI signals to obtain the characteristic information of the BCI signals; based on the characteristic information of the BCI signals and the appropriate BCI signal security measures, perform preprocessing on the BCI signals before security processing in accordance with the appropriate BCI signal security measures, to ensure the functionality of the BCI signals.

[028] In some embodiments, the system also includes: a tuning and optimization module, used to, after BCI signal security processing in accordance with appropriate BCI signal security measures, obtain the actual effect of BCI signal security processing, analyze the actual effect to obtain an analysis result, and tune and optimize the appropriate BCI signal security model based on the analysis result.

[029] In some embodiments, the system also includes: a signal adjustment module, used to adopt at least one measure of elimination, reduction, decrease, adjustment, alteration, translation, conversion, reminder, warning, shutdown, intensification or increase to adjust the BCI signals.

[030] Based on the specific examples provided by the present invention, the following technical effects are disclosed:

[031] The present invention provides a BCI signal security system and its method of use. The BCI signal security system includes: an information acquisition module, used to obtain BCI signals and security information from the BCI signals; an analysis module, used to make decisions. Petition 870250091268, dated 06 / 10 / 2025, page 15 / 51 6 / 24 using BCI signals and BCI signal security information as input, using a suitable BCI signal security model for analysis, determining whether the BCI signals meet security constraints, and obtaining appropriate BCI signal security measures when security constraints are met; a security module, used to perform BCI signal security processing according to appropriate BCI signal security measures. In this way, BCI signal security processing is performed using appropriate BCI signal security measures obtained from a pre-established BCI signal security model, which can improve BCI security, increase the effectiveness of BCI use, and prevent security damage to the target of BCI signals. Explanatory Drawing

[032] To explain more clearly the embodiments of the present invention or the state-of-the-art technology, a simple description of the drawings necessary for the embodiments is given below. Obviously, the drawings described below are only a few examples of the present invention; for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[033] Figure 1 is a block diagram of a BCI signal security system provided in Embodiment Example 3 of the present invention. Specific Implementation Method

[034] Below, the drawings in the embodiments of the present invention will be combined to describe clearly and completely the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some examples of the present invention, and not all. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort belong to the scope of protection of the present invention.

[035] Implementation Example 1

[036] A BCI signal security system, the system comprises: a database module, a data acquisition module, an analysis module and a security module.

[037] The database module is used to store a database Petition 870250091268, dated 06 / 10 / 2025, page 16 / 51 7 / 24 of BCI data, the BCI database includes a BCI signal security model, the BCI signal security model includes the security restrictions required for BCI signals of different signals, information sources, information channels, access methods, modes, frequency, intensity, time, interval, information volume and object of reception / influence of the signal.

[038] The data acquisition module is used to obtain BCI signals and safety information from the BCI signals.

[039] The analysis module is used to analyze BCI signals, BCI signal security information and BCI signal security model, and obtain appropriate BCI signal security measures.

[040] The security module is used to perform security processing of BCI signals in accordance with appropriate BCI signal security measures, improving the security of BCI signals. Example of Implementation 2

[041] A method of using the BCI signal security system according to Embodiment Example 1, the method comprises:

[042] Establish a BCI database, the BCI database includes a BCI signal security model, the BCI signal security model includes the security restrictions required for BCI signals of different signals, information sources, information channels, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object.

[043] Obtain BCI signals and safety information from BCI signals.

[044] Analyze through BCI signals, BCI signal security information and BCI signal security model, and obtain appropriate BCI signal security measures.

[045] Perform BCI signal security processing in accordance with appropriate BCI signal security measures, improving BCI signal security. Example of Implementation 3

[046] A BCI signal security system, as shown in Figure 1, comprises:

[047] An information acquisition module, used to obtain BCI signals and safety information from BCI signals; BCI signals include: mode, Petition 870250091268, dated 06 / 10 / 2025, page 17 / 51 8 / 24 type, format, content, function, neurons, information volume, signal intensity, frequency, purpose, object of action, access method and location of the BCI signal; the security information of the BCI signals refers to information related to the security restrictions required for the BCI signals.

[048] An analysis module, used to take BCI signals and BCI signal security information as input, use a BCI signal security model for analysis, determine whether the BCI signals meet the security constraints, and obtain appropriate BCI signal security measures when the security constraints are met; the BCI signal security model includes the security constraints required for BCI signals from different signals, information sources, information channels, information formats, information contents, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object, as well as the BCI signal security measures required when these security constraints are met.

[049] A security module, used to perform security processing of BCI signals in accordance with appropriate BCI signal security measures.

[050] The BCI signal security system in this embodiment is applicable to implantable BCI signals (i.e., BCI signals generated by implantable BCIs) and / or non-implantable BCI signals (i.e., BCI signals generated by non-implantable BCIs).

[051] The BCI signal security system in this embodiment also includes: a database module, used to store a BCI database; the BCI database includes a BCI signal security model for each user category or for each individual user; the BCI signal security model is obtained by considering the possible impact on BCI signal users of different signals, information sources, information channels, information formats, information contents, access methods, modes, frequency, intensity, time, interval, information volume and object of reception / influence of the signal — the possible impact includes impact on health, behavior, sensation, emotion, social state, thought, mood, memory, physiological function, skills, mental aspect, rest, part of Petition 870250091268, dated 06 / 10 / 2025, page 18 / 51 9 / 24 body, organ, system, function, need, immunity, metabolism, capacity, temperament, arousal level, etc. of the user — and performing customized configurations based on at least one piece of information from the object of action, including population, genetic factors, physiological factors, psychological factors, body factors, life status / life history, exercise situation, work and rest situation, study situation, work situation, illness situation, medications, medical devices, diet, physiological / psychological trauma, surgery, radiation, physiotherapy, rehabilitation, operation, examination, and psychological intervention.

[052] In this embodiment, first a BCI database is established, the BCI database includes a BCI signal security model, the BCI signal security model includes the security constraints required for BCI signals of different signals, information sources, information channels, information formats, information contents, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object, as well as the BCI signal security measures required when these security constraints are met.

[053] Preferably, the BCI signal safety model in this embodiment example may also include the safety constraints required for BCI signals with different contents, functions, and effects, as well as the BCI signal safety measures required when these safety constraints are met; the effects include effects on at least one of the following: knowledge, cognition, values, interests, methods, goals, emotions, state, physical capacity, skills, behavior, intelligence, memory, physiological function, expression, immunity, arousal level, and brain synapse connection / connection / disconnection. For example: the same BCI signal with content related to atheism does not cause great stimulation to an atheist user, but may cause great stimulation to other users, possibly presenting safety risks.

[054] Because the human brain is divided into different areas, and different areas correspond to different functions, for example, the motor cortex controls various movements, the sensory cortex perceives temperature, humidity, tactile sensation, etc., the visual cortex forms vision, therefore, BCI signals, according to their different functions and purposes, adopt different modes, act in Petition 870250091268, dated 06 / 10 / 2025, page 19 / 51 10 / 24 different neurons have different signal intensities and frequencies, transmitting different volumes of information; therefore, it is necessary to establish a BCI signal security model. Specifically, the potential impact on BCI signal users of different signals, information sources, information channels, information formats, information content, access methods, modes, frequency, intensity, time, interval, information volume, and signal reception / influence object is used to determine the necessary security constraints for BCI signals and the necessary BCI signal security measures when these security constraints are met, thus obtaining the BCI signal security model.When the BCI signal security model also includes the necessary security constraints for BCI signals with different contents, functions, and effects, and the necessary BCI signal security measures when these security constraints are met, these security constraints and security measures are additionally determined based on the possible impact on users of BCI signals from different signals, information sources, information channels, information formats, information contents, access methods, modes, frequency, intensity, time, interval, information volume, reception object / signal influence, content, function, and effect, thus obtaining the BCI signal security model. Among them, the BCI signal security model can be established by at least one of the following methods: manual configuration, artificial intelligence machine learning analysis, big data analysis.The potential impact of BCI signals on users can affect the physiological, psychological, mental, functional, memory, etc., aspects of the human body, and some impacts can cause harm; therefore, safety restrictions must be implemented. For example, for electrical signals, the voltage, current, frequency, etc., of the signal can be restricted to impose safety limitations on the electrical signal.

[055] Based on this, this embodiment establishes a universal BCI signal security model. After obtaining the BCI signals and the BCI signal security information, the analysis module takes the BCI signals and the BCI signal security information as input, uses the BCI signal security model for analysis, determines whether the BCI signals meet the security constraints, and obtains appropriate BCI signal security measures when the security constraints are met. Petition 870250091268, dated 06 / 10 / 2025, page 20 / 51 11 / 24

[056] Different people, due to their different bodily conditions or states, have different acceptable ranges for BCI signals. Therefore, in this embodiment, the BCI signal safety model can also be customized based on at least one piece of information from the target, including population, genetic factors, physiological factors, psychological factors, bodily factors, life status / life history, exercise status, work and rest status, study status, work status, illness status, medications, medical devices, diet, physiological / psychological trauma, surgery, radiation, physiotherapy, rehabilitation, operation, examination and psychological intervention, so that the BCI signal safety model can be customized to different targets.

[057] Elements that may affect the safety restrictions required for BCI signals may include: population factors, such as nationality, race, gender, age, etc.; genetic factors, such as genes, genetic variation / alteration, genetic defects, genetic history, family history of diseases, etc.; physiological factors, such as physical condition, nutritional status, hearing, vision, taste, smell, touch, breathing, motor coordination, digestion, absorption, excretion, sexual function, fertility and related capacity levels; psychological factors, such as psychological illnesses, emotions, sensations, intelligence, attention, memory, perception, communication ability, expression ability, etc.; bodily factors, such as height, weight, strength, speed, body development, etc.; life status / life history factors, such as work information, diet-related information, study information, exercise information, entertainment information, work and rest information, etc.; disease factors, such as diagnosis, symptoms, etc.; time factors, such as year / season / month / rhythm / decade / week / day, morning / afternoon / night, after waking up / before sleeping / after exercise / before eating; environmental factors, such as temperature, humidity, atmospheric pressure, season, longitude, latitude, altitude, air quality, topography, geomorphology, oxygen content, lighting, ultraviolet, radiation, electromagnetic waves, noise, epidemic diseases, plants, etc.; it may also include factors such as medications, medical devices, diet, physiological / psychological trauma, surgery, radiation, physiotherapy, rehabilitation, operation, examination, psychological intervention, and other possible elements. Petition 870250091268, dated 06 / 10 / 2025, page 21 / 51 12 / 24

[058] In this embodiment, based on the possible impact on BCI signal users of different signals, information sources, information channels, information formats, information content, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object, and performing customized configurations based on at least one piece of information from the object of action, including population, genetic factors, physiological factors, psychological factors, body factors, life status / life history, exercise situation, work and rest situation, study situation, work situation, illness situation, medications, medical devices, diet, physiological / psychological trauma, surgery, radiation, physiotherapy, rehabilitation, operation, examination and psychological intervention, a BCI signal safety model is obtained for each user category or for each individual user.

[059] Based on this, this embodiment establishes multiple custom BCI signal security models. After obtaining the BCI signals and the BCI signal security information, the analysis module is also used to determine a suitable BCI signal security model based on the BCI signals and the BCI signal security information before using the BCI signal security model for analysis. Then, using the suitable BCI signal security model for analysis, it determines whether the BCI signals meet the security constraints, and obtains appropriate BCI signal security measures when the security constraints are met. The suitable BCI signal security model is either a BCI signal security model in the BCI database, or a model obtained by adjusting a BCI signal security model in the BCI database according to the actual situation of the BCI signals.

[060] To improve the efficiency of establishing multiple customized BCI signal security models, this embodiment can first classify existing data based on different user groups, establish a model for one user category, and then gradually refine the classification of user groups, making it increasingly refined, and finally establishing a BCI signal security model for each individual user. User indices under various signal conditions Petition 870250091268, dated 06 / 10 / 2025, page 22 / 51 13 / 24 Biochemical signals (BCIs) are collected through methods such as observation, examination, and detection. The real-time, short-term, and long-term impact of BCI signals at different intervals on the user's entire body, various systems, organs, parts, tissues, cellular level, molecular level, and physiological functions, and psychological conditions are also recorded. This data is used to analyze the potential impact of BCI signals at different intervals on users, determine necessary safety restrictions, and implement BCI signal safety measures when these restrictions are met, in order to establish a BCI signal safety model. It is also possible to combine disciplines including physiology, pathology, genetics, pharmacology, psychology, materials science, environmental science, etc., to establish, infer, and adjust relevant impacts and restrictions in order to establish a BCI signal safety model.The analysis required for BCI signals includes: which factors of the BCI signals affect the user, what type and degree of impact is produced, the relationship between the values ​​of each factor and the impact, which impacts / degrees are unfavorable to the user, and the BCI signal safety measures necessary to prevent the BCI signals from causing harm to the human body under different conditions.

[061] After obtaining the combination of elements from different dimensions, data collection is carried out, evaluating whether there are common characteristics, and for combinations of elements with common characteristics, comprehensive evaluation, monitoring and control are carried out, using various relevant statistical methods, big data monitoring and other methods to establish the BCI signal safety model. In this embodiment example, the BCI signal safety model is a model for a user or a category of users, for example, it can be a model for a specific user, or a model for a population category, such as a model for people with psychological illnesses, a model for minors aged 12 to 18, etc., it can also be a regional model, a sectoral model, an ethnic model, etc. The model can be a static model or a dynamic model, for example: a model after being affected / stimulated, after taking medication, after eating, before sleeping, etc.

[062] In this example of implementation, the BCI signal security model Petition 870250091268, dated 06 / 10 / 2025, page 23 / 51 14 / 24 can be established based on various medical manuals, guidelines, research reports, literature materials, expert consensus, internal minutes and consensus of medical associations / hospitals / departments, industry standards, textbooks, articles, works, inventions, scientific inferences, experimental reports, test reports, data analysis reports, detection reports, approval documents, relevant regulations, relevant guiding opinions, relevant policies, relevant systems, evaluations / reports from physicians / nurses / pharmacists / nursing staff / patients, other research results of a professional / authoritative nature, can be defined manually by experts based on research results, literature, data, professional / authoritative experience, can also be established based on data mining to obtain information and reorganize it, and can also be established by big data analysis.It can also be established through deep learning artificial intelligence, it can also be established by combining existing knowledge graphs, and it can also be established by continuously obtaining new data during use. Information gathering module

[063] The information acquisition module is used to obtain BCI signals and safety information from the BCI signals.

[064] Among them, the information acquisition module obtains BCI signals from the BCI or other related systems, the BCI signals include information such as: mode, type, format, content, function, neurons, information volume, signal intensity, frequency, purpose, object of action, access method and location of the BCI signal.

[065] Among them, BCI signal safety information refers to information related to the safety restrictions required for BCI signals, and may include: basic information on the target, related genetic information, related family health information (such as family history of diseases), medical history, allergy history, history of regional epidemic diseases, medication history, surgical history, history of use of surgical plans, study status, work status, exercise status, family situation, living environment, hobbies, adherence status, tolerance status, health insurance status, as well as physiological / psychological / educational / professional / physical capacity / conditions. Petition 870250091268, dated 06 / 10 / 2025, page 24 / 51 15 / 24 sleep / exercise / emotional / metabolic / visual / auditory / intellectual / attention / nutritional / immunological / developmental / memory / reproductive capacity and work and rest schedule; may also include information such as temperature, humidity, atmospheric pressure, season, longitude, latitude, altitude, air quality, topography, geomorphology, oxygen content, lighting, ultraviolet, radiation, electromagnetic waves, noise, epidemic diseases, plants, etc.; may also include: indicators related to physical examination, indicators related to hematology, indicators related to thrombosis and hemostasis, indicators related to excretions / secretions / body fluids, indicators related to renal function, indicators related to hepatic function, indicators related to biochemistry, indicators related to immunology, indicators related to genetics, indicators related to pathogens, indicators related to cardiac function,Indicators related to lung function, indicators related to psychological state, indicators related to mental state, indicators related to motor skills, indicators related to image, indicators related to acoustics, specifically including: height, weight, body temperature, visual acuity, auditory acuity, blood glucose, red blood cells, white blood cells, platelets, uric acid, cholesterol, transaminase, calcium, iron, potassium, triglycerides, heart rate, body fat, lung capacity, image, acoustics, intelligence, psychology, motor skills and other medical indicators, the ratio of various indicators, such as: height / weight, height / waist, etc., various health manifestations, sensations, patterns, such as: skin color, tongue coating, fundus of the eye, body fat, skin, skin color, hair quality,Strength; they may also include: other information related to the security restrictions required for BCI signals.

[066] Sources of BCI signal safety information may include: the subject's personal information database, health records, medical orders, medical records / electronic medical records, diagnostic reports, examination / test results, monitoring results, nutritional assessment reports, health records of family members or relatives, medical orders, medical records, medication histories, prescriptions, electronic medical records, medical institution information systems, pharmacy / device store information systems Petition 870250091268, dated 06 / 10 / 2025, page 25 / 51 16 / 24 medical records, medical consultation records, treatment records, evaluation reports, consultation records, research records, work and rest records / plans, diet records / plans, shopping records / plans, medication records / plans, treatment records / plans, exercise records / plans, work records / plans, study records / plans, rehabilitation records / plans, health records / plans, examination / test forms, surgical plans / records, health management plans, invoices, clinical treatment pathways, examination / test results, surgical settings / records, genetic test results, can also be obtained from user / doctor / nurse / caregiver usage / prescription / recommendation records, can also be provided by various wearable devices, sensors, electronic devices, electronic positioning systems, weather forecasting systems,Electronic temperature / humidity / pressure sensing devices, smart speakers, smart home systems, monitoring / smart systems, smart glasses, smart toilets, smart floors, smart scales, smart sensing / analysis devices, electronic infusion systems, surgical robots, facial recognition analysis, fingerprint recognition, voice recognition, gait recognition, positioning systems, social platforms, and other devices or systems can also be obtained through big data analysis of life information, study, work, exercise, travel, socialization, shopping, diet, work and rest, entertainment, etc., and can also be obtained through analysis of information related to race / family / region / age / marital status / fertility. Missing information can be provided or filled in by the user.Highly relevant information can be actively suggested to the user / physician to observe, monitor, examine, inquire about, analyze, confirm, and record relevant situations or obtain relevant physiological indicators / manifestations / sensations / symptoms / changes. These assessment reports include physiological, psychological, economic, credit, motor skills, etc. Intelligent detection / analysis devices include: odor, image, sound, pulse, X-ray, CT scan, MRI, ultrasound, brain waves, spectrometer, tongue diagnostic analysis, fundus examination, gastroscopy, colonoscopy, catheter, etc. Petition 870250091268, dated 06 / 10 / 2025, page 26 / 51 17 / 24 hour cross-endoscope, heart rate, blood oxygen, blood pressure, blood glucose, blood lipids, body temperature, blood test, urine test, stool test, pulse measurement / analysis devices, body weight / fat scale, etc. Analysis module

[067] When the BCI signal security model is a universal BCI signal security model, the analysis module directly uses the BCI signal security model for analysis, specifically taking the BCI signals and the BCI signal security information as input, using the appropriate BCI signal security model for analysis, determining whether the BCI signals meet the security constraints, and obtaining appropriate BCI signal security measures when the security constraints are met.

[068] When the BCI signal security model consists of multiple custom BCI signal security models, the analysis module is used to determine a suitable BCI signal security model based on the BCI signals and the BCI signal security information, specifically by directly matching a suitable BCI signal security model in the BCI database through the BCI signals and the BCI signal security information, or, based on the BCI signals and the BCI signal security information, selecting the most suitable BCI signal security model in the BCI database, and then considering the difference between the actual situation of the BCI signals and the existing model (i.e., the most suitable BCI signal security model), appropriately adjusting this most suitable BCI signal security model to make it more suitable to the actual situation, thus obtaining the suitable BCI signal security model, therefore, in this embodiment example,The appropriate BCI signal security model is either a BCI signal security model in the BCI database, or a model obtained by adjusting a BCI signal security model in the BCI database according to the actual situation of the BCI signals. This adjustment can be done manually, automatically by the BCI signal security system, or automatically through artificial intelligence self-learning.

[069] After obtaining the appropriate BCI signal security model, it takes Petition 870250091268, dated 06 / 10 / 2025, page 27 / 51 18 / 24 BCI signals and BCI signal safety information as input, uses the appropriate BCI signal safety model for analysis, determines if the BCI signals meet the safety constraints, and obtains appropriate BCI signal safety measures when the safety constraints are met. Thus, based on the appropriate BCI signal safety model, BCI signals, BCI signal safety information for analysis, obtains appropriate BCI signal safety measures. The BCI signal safety measures can restrict the voltage, current, frequency, action location, action neurons, etc., of the BCI signal.

[070] In this example of implementation, in the process of obtaining adequate BCI signal safety measures, it is also necessary to consider the interactions between different dimensions of the BCI signals or between two or more BCI signals. This interaction may involve the reinforcement or weakening of the BCI signals, the alteration of the format or content of the information, the impact on the reception / localization channel, or the impact on the effect. Considering this interaction, more adequate BCI signal safety measures can be obtained. The BCI signal safety model may also include at least one of mutual constraints, contraindications, and mutual interactions between different BCI signals, including mutual constraints / contraindications / mutual interactions of BCI signals of various modes, functions, neurons, information volumes, signal intensities, frequencies, and purposes.These mutual restrictions / contraindications / mutual interactions can be caused by time factors, psychological factors, physiological factors, signal intensity factors, signal frequency factors, etc. Relevant mutual restrictions / contraindications / mutual interactions may include: materials, types, methods of use, conditions of use, time, intensity, frequency, population, related genetics, diseases, disease history, allergy history, body indicators, physiological development, marital and reproductive status, physiological condition, psychological / intellectual condition, living / work / study / exercise / entertainment situation, temperature / humidity / pressure / season / altitude / air quality / oxygen content / illumination / ultraviolet / noise, emotions, electricity, magnetism, light, heat, radiation, stimulation, etc.

[071] In this embodiment, the analysis model in the process of obtaining suitable BCI signal security measures obtains multiple preliminary BCI signal security measures, and then selects measures of Petition 870250091268, dated 06 / 10 / 2025, page 28 / 51 19 / 24 Adequate BCI signal security from multiple preliminary BCI signal security measures, the specific selection method is: the analysis module defines corresponding levels / scores for different analysis results of at least one analysis item for BCI signal security measures, including risk, hazard, complexity, restrictive conditions, effect, time, cost, convenience, economy, integrity / truthfulness / accuracy of information, benefit to the user and harm to the user, when analyzing the BCI signal security measures, it can calculate the comprehensive level / score of the BCI signal security measures based on the corresponding level / score of each analysis item for different BCI signal security measures and the BCI signal security model, in order to determine if the BCI signal security measure is feasible or to recommend BCI signal security measures.In other words, in this example, the analysis module is also used to define corresponding levels / scores for different analysis results of at least one analysis item for BCI signal security measures, including risk, hazard, complexity, restrictive conditions, effect, time, cost, convenience, economy, integrity / truthfulness / accuracy of information, benefit to the user and harm to the user, calculate the comprehensive level / score of the BCI signal security measures based on the corresponding level / score of each analysis item for different BCI signal security measures and the BCI signal security model, and determine the appropriate BCI signal security measures based on the comprehensive level / score, in order to select appropriate BCI signal security measures from the multiple preliminary BCI signal security measures. Security module

[072] The security module is used to perform security processing of BCI signals in accordance with appropriate BCI signal security measures, improving the security of BCI signals. Processing module

[073] The BCI signal security system in this embodiment also includes: a processing module, used to perform at least one translation, matching, conversion, or identification operation on the BCI signals to obtain the characteristic information of the BCI signals, based on the Petition 870250091268, dated 06 / 10 / 2025, page 29 / 51 20 / 24 characteristic information of BCI signals and appropriate BCI signal security measures, perform preprocessing on BCI signals before security processing in accordance with appropriate BCI signal security measures, to ensure the functionality of BCI signals.

[074] Specifically, in this embodiment, before the BCI signal safety processing according to the appropriate BCI signal safety measures, the processing module performs preprocessing on the BCI signals in advance, as far as possible to ensure the functionality of the BCI signals. For example: if the voltage of the BCI signal exceeds the standard, the appropriate BCI signal safety measure is to restrict the voltage, so directly reducing the voltage of the BCI signal achieves the safety standard, but may cause significant functional loss, and the BCI signal can no longer perform its original function. To perform the preprocessing process, the processing module in this embodiment is used to perform translation, matching, conversion, identification, etc. operations on the BCI signals, through the translation, matching, conversion, identification, etc. operations of the processing module on the BCI signals,It analyzes the characteristics of BCI signals and then, based on the characteristics of the BCI signals and the appropriate BCI signal security measures, performs preprocessing on the BCI signals as much as possible to ensure the functionality of the BCI signals. That is, before processing the security of the BCI signals according to the appropriate BCI signal security measures, the processing module, based on the characteristics of the BCI signals, performs preprocessing on the BCI signals in advance. This preprocessing can be population-oriented or individual-oriented; that is, before entering the BCI, it intervenes in advance on known / universal security risks, but after preprocessing, it can reduce risks in advance, prevent users who do not use / use few security measures from suffering universal / routine security harm, or it can collectively protect users who receive the same signal.reducing the total cost consumed by each user by taking separate measures, as far as possible, to ensure the functionality of the BCI signals.

[075] In this embodiment, the processing module can analyze the characteristics of BCI signals by time domain, frequency domain, time-frequency domain, etc. methods. Petition 870250091268, dated 06 / 10 / 2025, page 30 / 51 21 / 24

[076] Time-domain method: through zero-crossing analysis, histogram analysis, variance analysis, correlation analysis, peak detection and waveform parameter analysis, coherent averaging, waveform recognition, etc., it directly extracts the characteristic parameters of the waveform through time-domain analysis, and then uses these characteristic waveform parameters for classification, recognition, tracking and transient analysis of BCI signals. The time-domain feature extraction method combines specific filtering methods with sampling methods to remove time-domain noise from BCI signals, improving the signal-to-noise ratio of BCI signals. Among these, the most extracted are amplitude characteristics and amplitude energy characteristics.Filtering methods that can be used include bandpass filtering, Laplace filtering, all-electrode averaging reference method, Kalman filtering, moving average filtering, etc. Additionally, continuous or discrete wavelet transform can also be used to extract time-varying characteristics from BCI signals.

[077] Frequency domain method: can use power spectrum estimation and parametric model method to analyze the characteristics of BCI signals. Power spectrum estimation is a frequency domain analysis method that can reflect the frequency components of the signal and their relative strength; using this method to analyze the power and coherence of BCI signals in various frequency bands, the signal law can be obtained. The parametric model method is a widely used method in modern spectral estimation because it has high frequency resolution, a smooth spectrum, can perform automatic parameter extraction and quantitative analysis, and is especially suitable for processing short data sets; it can be applied to the dynamic analysis of BCI signals.Frequency domain features are generally measured using power spectral density (PSD), autoregressive adaptive model (AAR) parameters, or wavelet band energy; the corresponding extraction methods are mainly fast Fourier transform (FFT), AAR model, and wavelet transform, etc.

[078] Time-frequency method: BCI signals have complex and non-stationary characteristics, and traditional time-domain and frequency-domain analysis Petition 870250091268, dated 06 / 10 / 2025, page 31 / 51 22 / 24 frequency also has uncertainty in signal processing, therefore, characteristic values ​​in the time domain and power spectra in the frequency domain are combined for the extraction of BCI signal features, among them, the Wigner distribution and the wavelet transform are preferred time-frequency analysis methods.

[079] The BCI signal security system of this embodiment can also analyze based on the actual effect of BCI signal security processing during use, and the result of the analysis can be used for tuning and optimizing the BCI signal security model. Specifically, the BCI signal security system of this embodiment also includes: a tuning and optimization module, used to, after BCI signal security processing in accordance with appropriate BCI signal security measures, obtain the actual effect of BCI signal security processing, analyze the actual effect to obtain an analysis result, and tune and optimize the appropriate BCI signal security model based on the analysis result.Specifically, through big data or evidence-based methods, track and analyze the application results from different users, different signals, and different models, continuously accumulate the relationship between the data, discover parts that need / can be improved, and perform dynamic optimization.

[080] The BCI signal safety system in this embodiment also includes: a signal adjustment module, used when the BCI signal effect is not good, adopting at least one measure of elimination, reduction, decrease, adjustment, alteration, translation, conversion, reminder, warning, shutdown, intensification or increase to adjust the BCI signal, in order to adjust the BCI signal effect, including improving, altering, increasing, reducing the BCI signal effect. The BCI signal effect not being good refers to the effect not being good of the originally obtained BCI signal, or refers to the effect not being good of the BCI signal after safety processing, at this point, the BCI signal safety model can be used to determine if the effect is not good.

[081] The BCI signal security system in this embodiment can be used on a single computer, it can also be used by users via connected external hardware such as a portable hard drive, box, card, etc., and it can also be installed on a local server to support users. Petition 870250091268, dated 06 / 10 / 2025, page 32 / 51 It can be installed locally on a 23 / 24-hour server, or on a private cloud server to support private cloud users, and can also be installed on the internet to provide services to internet users.

[082] The BCI signal security system provided by this embodiment obtains BCI signals and BCI signal security information, analyzes through the BCI signals, BCI signal security information and BCI signal security model, determines whether the BCI signals meet the security constraints, and obtains appropriate BCI signal security measures when the security constraints are met, performs BCI signal security processing according to the appropriate BCI signal security measures, improving the security of the BCI signals. This embodiment, based on BCI signals from different signals, information sources, information channels, information formats, information contents, access methods, modes, frequency, intensity, time, interval, information volume and signal reception / influence object, establishes a BCI signal security model based on large-scale data samples,In the process of establishing the BCI signal security model, it fully considers the individual real-world situation, subdivides the target population / application scenarios and relevant parameter patterns, fully understands individual user information, obtains a BCI signal security model for a user category or a single user, and further provides appropriate BCI signal security measures according to the customized situation of the BCI signal's target, performs BCI signal security processing according to these appropriate BCI signal security measures, and can perform preprocessing on BCI signals in advance as much as possible to ensure the functionality of the BCI signals, thus improving BCI security, increasing the effectiveness of BCI use, and preventing security damage to the BCI's target.

[083] The technical characteristics of the above embodiment examples may be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical characteristics of the above embodiment examples have been described; however, as long as the combination of these technical characteristics does not have contradictions, it should be considered as within the scope described in this document. Petition 870250091268, dated 06 / 10 / 2025, page 33 / 51 24 / 24

[084] This document uses specific examples to explain the principles and modes of implementation of the present invention; the description of the examples above is only to help understand the method and central thinking of the present invention; at the same time, for those skilled in the art, according to the thinking of the present invention, there will be changes in the specific modes of implementation and scope of application. In short, the content of this document should not be interpreted as a limitation to the present invention. Petition 870250091268, dated 06 / 10 / 2025, p. 34 / 51

Claims

1 / 5 CLAIMS 1. A Brain-Computer Interface (BCI) signal security system, characterized by comprising: a database module, a data acquisition module, an analysis module and a security module; the database module is used to store a BCI database, which includes a BCI signal security model.The BCI signal security model comprises the necessary security constraints for BCI signals, considering different signals, information sources, information channels, access modes, modes, frequencies, intensities, times, intervals, information volumes, and objects of action that receive / are influenced by the signals; the information acquisition module is used to obtain BCI signals and BCI signal security information; the analysis module is used to perform analyses using BCI signals, BCI signal security information, and the BCI signal security model, and to obtain appropriate BCI signal security measures; the security module performs the security processing of BCI signals according to the appropriate BCI signal security measures, improving the security of BCI signals.

2. A method for using the BCI signal security system according to claim 1, characterized by comprising the following steps: establishing a BCI database, which includes a BCI signal security model; the BCI signal security model comprises the security constraints required for BCI signals, considering different signals, information sources, information channels, access modes, modes, frequencies, intensities, times, intervals, information volumes and object of action that receive / are influenced by the signals; obtaining the BCI signals and the BCI signal security information; Petition 870250091268, dated 06 / 10 / 2025, p.35 / 51 2 / 5 perform analyses using BCI signals, BCI signal security information, and the BCI signal security model, and obtain appropriate BCI signal security measures; perform BCI signal security processing in accordance with appropriate BCI signal security measures, improving BCI signal security.

3. A BCI signal security system, characterized by comprising: an information acquisition module, used to obtain BCI signals and BCI signal security information; BCI signals include: mode, type, format, content, function, neurons, information volume, signal intensity, frequency, purpose, object of action, access methods and application location of the signals; BCI signal security information refers to information related to the security constraints required for BCI signals; an analysis module, used to receive BCI signals and signal security information as input, use the BCI signal security model to perform analyses, verify whether the BCI signals meet the security constraints, and obtain appropriate BCI signal security measures when the security constraints are met;The BCI signal security model includes: the necessary security constraints for BCI signals (considering different signals, information sources, information channels, information formats, information contents, access methods, modes, frequencies, intensities, times, intervals, information volumes, and object of action) and the necessary BCI signal security measures when the security constraints are met; a security module, used to perform the security processing of BCI signals according to the appropriate BCI signal security measures.

4. The BCI signal security system according to claim 3, characterized by further comprising: a database module, used to store a BCI database. The BCI database includes a BCI signal security model for each user category or each individual user;Petition 870250091268, dated 06 / 10 / 2025, page 36 / 51 3 / 5 The BCI signal security model is obtained as follows: it considers the potential impact of BCI signals (related to different signals, information sources, information channels, information formats, information content, access methods, modes, frequencies, intensities, times, intervals, information volumes and object of action) on the user, and at the same time performs personalized configurations based on at least one type of information from the object of action — information that includes: population group, genetic factors, physiological factors, psychological factors, body factors, life status / life history, exercise situation, work and rest situation, study situation, professional situation, disease conditions, medications, medical devices, diet, physiological / psychological trauma, surgery, radiation, physiotherapy, rehabilitation, operation, examination and psychological intervention;The analysis module is still used, before performing the analysis with the BCI signal security model, to determine a suitable BCI signal security model based on the BCI signals and signal security information; the suitable BCI signal security model is either an existing BCI signal security model in the BCI database, or a model obtained by adjusting a BCI signal security model from the BCI database according to the actual situation of the BCI signals.

5. The BCI signal security system according to claim 3, characterized in that, in the process of obtaining adequate BCI signal security measures, it is also necessary to consider the interaction between different dimensions of the BCI signals or between one or more BCI signals.

6. The BCI signal security system according to claim 3, characterized in that the analysis module is further used to: establish corresponding levels / scores for the different analysis results of at least one evaluation item of the BCI signal security measures — evaluation items that include: risk, hazard, complexity, restrictive conditions, effect, time, cost, convenience, economy, integrity / truthfulness / accuracy of information, benefit to the user and harm to the user; Petition 870250091268, dated 06 / 10 / 2025, page 37 / 51 4 / 5 calculate the comprehensive level / score of the BCI signal security measures based on the levels / scores of each evaluation item for different security measures and the BCI signal security model; determine the appropriate BCI signal security measures based on the comprehensive level / score.

7. The BCI signal security system according to claim 3, characterized in that the BCI signal security model further includes: the necessary security constraints for BCI signals with different contents, functions and effects, in addition to the necessary BCI signal security measures when these security constraints are met; the effects mentioned include the impact on at least one of the following aspects: knowledge, cognition, values, interests, methods, objectives, emotions, state, physical capacity, skills, behavior, intelligence, memory, physiological function, expression, immunity, arousal level and establishment / connection / disconnection of brain synapses.

8. The BCI signal security system according to claim 3, characterized by further comprising: a processing module, used to perform at least one operation (translation, matching, conversion or identification) on BCI signals, obtaining the characteristic information of the signals; based on the characteristic information of the BCI signals and the appropriate BCI signal security measures, the processing module performs the pre-processing of the BCI signals before security processing (in accordance with the appropriate BCI signal security measures), to ensure the functionality of the BCI signals.

9. The BCI signal security system according to claim 3, characterized by further comprising: an adjustment and optimization module, used to, after performing the security processing of BCI signals in accordance with the appropriate BCI signal security measures, obtain the actual effect of the security processing, analyze the actual effect to obtain an analysis result, and adjust and optimize the appropriate BCI signal security model based on the analysis result. Petition 870250091268, dated 06 / 10 / 2025, p. 38 / 51 5 / 5 10. The BCI signal security system according to claim 3, characterized by further comprising: a signal adjustment module, used to adjust BCI signals by adopting at least one of the following measures: exclusion, reduction, decrease, adjustment, alteration, translation, conversion, reminder, warning, shutdown, intensification. Petition 870250091268, dated 06 / 10 / 2025, pp. 39 / 51

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