Method for determining installation position of induction electrode of operator

Abstract

The invention provides a method for determining the installation position of an induction electrode of an operator. The method comprises the following steps: performing electrode marking in a forehead area of a test object based on a preset position; then determining a first target position of electrode installation according to the resistance value test; then carrying out identification precision test, and determining a second target position meeting a precision requirement according to a test result; and finally, optimizing electrode configuration according to the second target position, and determining a minimum number of electrode combination schemes to meet monitoring requirements. Through multiple tests and optimization of the electrode contact position, the optimal mounting position of the electrode in the forehead area of the operator is accurately determined, and tight contact between the electrode and the skin is ensured, so that high-quality acquisition of physiological signals is realized, signal distortion and interference are reduced, and the accuracy of physiological signal acquisition is improved. The problem of insufficient monitoring precision caused by unstable electrode contact or unreasonable configuration in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of physiological signal acquisition and fatigue monitoring, and in particular to a method for determining the installation position of an operator's induction electrode. Background Art

[0002] In modern industrial production environments, indoor operations and outdoor high-altitude operations place extremely high demands on the workers' attention and physical condition. Long hours of work may lead to the accumulation of fatigue among workers, which in turn affects their work efficiency and safety. In order to effectively prevent accidents and improve production efficiency, it is particularly important to accurately monitor the fatigue status of workers. To this end, most existing fatigue monitoring technologies rely on methods such as video monitoring and physiological signal detection, and strive to evaluate the fatigue level of workers through real-time monitoring and data analysis.

[0003] Among them, physiological signal detection, as an important means of fatigue monitoring, usually obtains the physiological information of workers, such as brain waves, through sensing electrodes. However, this type of method faces many challenges in practical applications, especially the contact between electrodes and human skin. Due to individual differences, changes in the working environment, and the difficulty in standardizing the fixed position and contact pressure of electrodes during work, the contact effect between electrodes and skin is often unstable, which directly affects the quality of the signal and leads to inaccurate collected data.

[0004] In addition, existing electrode configurations are usually selected based on experience, and lack precise configuration solutions for individual differences such as different head circumferences, ages, and genders. This non-optimized electrode configuration not only affects the accuracy and reliability of the monitoring results, but may also cause the system to be unable to adapt to the actual needs of different operating environments. In terms of fatigue levels and emotion recognition, the accuracy of existing technologies is still limited, partly because the electrode position and contact effect are not ideal, resulting in signal distortion, further reducing the overall performance of the monitoring system. Therefore, existing fatigue monitoring technologies have problems such as unstable electrode contact and unreasonable electrode configuration that affect the accuracy and reliability of physiological signal acquisition, resulting in insufficient fatigue monitoring accuracy. Summary of the invention

[0005] The main purpose of the present application is to provide a method for determining the installation position of an operator sensing electrode, so as to at least solve the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for determining the installation position of an operator's sensing electrode is provided, comprising: marking the electrode installation in the forehead area of ​​a test object based on a preset installation position to obtain at least one electrode mark; performing an electrode test based on each of the electrode marks, and determining a first target position where the sensing electrode is tightly installed based at least on a resistance value obtained from the electrode test; performing an identification accuracy test on each of the first target positions, and determining a second target position where the sensing electrode accuracy meets the use requirements based at least on an accuracy value obtained from the identification accuracy test; and determining a target installation scheme based on the second target position, the target installation scheme being a combination scheme of the second target position including the minimum number of sensing electrodes while meeting the monitoring requirements.

[0007] Optionally, electrode installation marking is performed on the forehead area of ​​the test object based on the preset installation position, including: grouping the test objects based on the work scene to obtain multiple target test groups, each of the target test groups includes the test objects of each age group, and the difference between the head circumference of each test object and the benchmark head circumference is within a first threshold; obtaining the preset installation position, and performing electrode installation marking on each of the target test groups in turn based on the preset installation position, wherein each of the test objects includes the electrode marks corresponding to all the preset installation positions.

[0008] Optionally, performing an electrode test based on each of the electrode marks, and determining a first target position where the sensing electrode is tightly installed at least based on a resistance value obtained by the electrode test, includes: performing the electrode test at each of the electrode marks through a single sensing electrode to obtain a plurality of resistance values, and determining a third target position where the single sensing electrode is installed at least based on the resistance value, the third target position being a position where the single sensing electrode is tightly installed; performing random combinations based on the electrode marks to obtain a plurality of alternative installation combinations, performing the electrode test based on each of the alternative installation combinations to obtain a plurality of resistance value groups, and determining a target installation combination where the plurality of sensing electrodes are installed at least based on each of the resistance value groups; and determining the third target position and an installation position included in the target installation combination as the first target position.

[0009] Optionally, determining a third target position for installing a single sensing electrode at least based on the resistance value includes: obtaining feedback data from the test subject, the feedback data at least including whether the existence of the sensing electrode corresponding to the electrode mark can be perceived; when the feedback data shows that the existence of the sensing electrode corresponding to the electrode mark cannot be perceived, obtaining the resistance value between the sensing electrode and the skin; and when the resistance value is less than a second threshold, determining the electrode mark corresponding to the resistance value as the third target position.

[0010] Optionally, performing the electrode test based on each of the alternative installation combinations to obtain a plurality of resistance value groups, and determining a target installation combination of the plurality of sensing electrodes at least based on each of the resistance value groups, comprises: acquiring the resistance values ​​corresponding to the electrode marks included in the alternative installation combination based on the alternative installation combination to obtain the resistance value group; acquiring the total contact area of ​​the sensing electrodes, calculating the ratio of the resistance value group to the total contact area to obtain a contact coefficient; predicting the target installation combination of the plurality of sensing electrodes based on the third target position to obtain a predicted installation combination; and determining the alternative installation combination as the target installation combination when the alternative installation combination is consistent with the predicted installation combination and the contact coefficient corresponding to the alternative installation combination is the smallest.

[0011] Optionally, performing a recognition accuracy test on each of the first target positions includes:

[0012] Obtaining identification signals of the sensing electrodes at each of the first target positions, and performing accuracy calculation based on the identification signals: Among them, PRE initial is the accuracy, F is an activation function used to convert the recognition signal into a preset format, and P comb,i is the first target position corresponding to the i-th sensing electrode, E best,i is the contact coefficient of the ith electrode, μ E is the average value of the contact coefficients of all the sensing electrodes, σ E is the discrete degree of the contact coefficient, and ω is the frequency coefficient.

[0013] Optionally, before determining the second target position where the accuracy of the sensing electrode meets the use requirement at least according to the accuracy value obtained by the recognition accuracy test, the method further includes:

[0014] The accuracy is corrected based on the contact coefficient to obtain the precision value: PRE final =PRE initial ·θ β Among them, PRE final is the accuracy value, θ is the adjustment factor of the contact coefficient on the recognition accuracy, and β is the nonlinear influence of the contact coefficient.

[0015] Optionally, a second target position where the sensing electrode accuracy meets usage requirements is determined at least according to an accuracy value obtained by the recognition accuracy test, and the method further includes: when the accuracy value corresponding to the first target position is greater than or equal to a third threshold, determining the first target position as the second target position.

[0016] Optionally, determining a target installation scheme based on the second target position includes: when the second target position is consistent with the third target position, determining the second target position as the target installation scheme; when the second target position belongs to the target installation combination, determining the target installation combination including the smallest number of sensing electrodes as the target installation scheme.

[0017] Optionally, predicting the target installation combination of the plurality of sensing electrodes based on the third target position to obtain a predicted installation combination further includes: regenerating the alternative installation combination when all the alternative installation combinations are inconsistent with the predicted installation combination.

[0018] Applying the technical solution of the present application, firstly, electrode installation marks are made in the forehead area of ​​the test object based on the preset installation position to obtain at least one electrode mark; then, electrode tests are made based on each of the electrode marks, and the first target position where the sensing electrode is tightly installed is determined based at least on the resistance value obtained by the electrode test; then, recognition accuracy tests are made on each of the first target positions, and the second target position where the sensing electrode accuracy meets the use requirements is determined based at least on the accuracy value obtained by the recognition accuracy test; finally, a target installation scheme is determined based on the second target position, and the target installation scheme is a combination scheme of the second target position with the minimum number of sensing electrodes under the condition of meeting the monitoring requirements. The present application accurately determines the optimal installation position of the electrode in the forehead area of ​​the operator through multiple tests and optimizations of the electrode contact position, ensures close contact between the electrode and the skin, thereby achieving high-quality acquisition of physiological signals, reducing signal distortion and interference, and solving the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A hardware structure block diagram of a mobile terminal for determining the installation position of a worker sensing electrode provided in an embodiment of the present application is shown;

[0020] Figure 2 A schematic flow chart of a method for determining the installation position of an operator sensing electrode provided in accordance with an embodiment of the present application is shown;

[0021] Figure 3 A structural block diagram of a device for determining the installation position of a worker sensing electrode provided according to an embodiment of the present application is shown.

[0022] The above drawings include the following reference numerals:

[0023] 102, processor; 104, memory; 106, transmission device; 108, input and output devices. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] As introduced in the background technology, the prior art has problems such as unstable electrode contact and unreasonable electrode configuration, which affect the accuracy and reliability of physiological signal acquisition and lead to insufficient fatigue monitoring accuracy. In order to solve the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art, an embodiment of the present application provides a method for determining the installation position of an operator's sensing electrode.

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 1 is a hardware structure block diagram of a mobile terminal for determining the installation position of a worker sensing electrode according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0030] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining the installation position of the operator sensing electrode in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific example of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0031] In this embodiment, a method for determining the installation position of an operator's sensing electrode running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0032] Figure 2 FIG. 1 is a flow chart of a method for determining the installation position of the operator sensing electrode according to an embodiment of the present application. Figure 2As shown, the method comprises the following steps:

[0033] Step S201, performing electrode installation marking on the forehead area of ​​the test subject based on a preset installation position to obtain at least one electrode mark;

[0034] Specifically, the initial placement of the electrodes is determined by precisely marking the forehead area of ​​the test subject. The preset marking positions are comprehensively considered by scientifically selecting the age, gender, head circumference range and other conditions of the test subjects in different working environments. Through these markings, it can ensure a wide coverage of the test and provide accurate electrode placement positions for different types of operations and working environments.

[0035] Step S202, performing an electrode test based on each electrode mark, and determining a first target position where the sensing electrodes are closely installed based at least on a resistance value obtained by the electrode test;

[0036] Specifically, the electrode marking position of the test object is used for electrode placement. Through single-electrode or multi-electrode combination testing, the contact resistance value, contact pressure, contact area and other parameters between the electrode and the skin are recorded to determine the contact effect of the electrode. The resistance value between the electrode and the skin is a key indicator to determine whether the electrode is installed tightly. When the contact resistance value is low, it indicates that the electrode is in good contact with the skin and the contact effect is ideal, thereby determining whether the electrode installation position is appropriate to ensure that the selected electrode position achieves the best contact effect and improve the quality of electrode signal acquisition.

[0037] Step S203, performing a recognition accuracy test on each first target position, and determining a second target position whose sensing electrode accuracy meets the use requirement at least according to the accuracy value obtained by the recognition accuracy test;

[0038] Specifically, the position of the electrode is further optimized through precision testing. After the electrode test of the first target position is completed, the emotion and fatigue recognition accuracy is evaluated. An algorithm based on physiological signals is used to evaluate whether the placement of the electrodes can accurately reflect the emotions and fatigue status of the test subjects. The evaluation indicators of the precision value include emotion recognition rate, fatigue detection accuracy, etc. If the precision value meets the preset requirements, the position is determined as the second target position to meet the monitoring needs.

[0039] Step S204: determining a target installation scheme based on the second target position, where the target installation scheme is a combination scheme of the second target position including the minimum number of sensing electrodes under the condition of achieving the monitoring requirement.

[0040] Specifically, the target installation scheme is further determined based on the accuracy test results of the second target position. When a single electrode or a combination of multiple electrodes is in the same optimal position and meets the accuracy conditions, a single electrode or a combination with a small number of electrodes is selected. The target installation scheme takes into account the realization of monitoring requirements while achieving the best contact effect and recognition accuracy with the least number of electrodes. By optimizing the number and position of electrodes, the equipment cost and complexity of use are reduced while maintaining sufficient monitoring accuracy.

[0041] Through this embodiment, a method for determining the installation position of the sensing electrode of the operator is provided. First, the electrode installation mark is made in the forehead area of ​​the test object based on the preset installation position to obtain at least one electrode mark; then, the electrode test is performed based on each electrode mark, and the first target position where the sensing electrode is tightly installed is determined at least according to the resistance value obtained by the electrode test; then, the recognition accuracy test is performed on each first target position, and the second target position where the sensing electrode accuracy meets the use requirements is determined at least according to the accuracy value obtained by the recognition accuracy test; finally, the target installation scheme is determined based on the second target position, and the target installation scheme is a combination scheme including the second target position with the minimum number of sensing electrodes under the condition of achieving the monitoring requirements. The present application provides an efficient and accurate electrode installation method, which can effectively optimize the electrode placement scheme by calibrating and testing the electrode position in a variety of working environments, so as to achieve the minimum number of electrodes for physiological signal acquisition at the most accurate position, thereby improving the signal acquisition quality of the electrode, optimizing the use of the electrode, and meeting the precise monitoring requirements in different working environments. It solves the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art.

[0042] As a possible implementation, electrode installation marking is performed on the forehead area of ​​the test subject based on a preset installation position, including:

[0043] Step S301, grouping the test subjects based on the work scenario to obtain multiple target test groups, each target test group includes test subjects of each age group, and the difference between the head circumference of each test subject and the reference head circumference is within a first threshold;

[0044] Specifically, the test subjects are grouped according to their age, gender, and physiological characteristics such as head circumference to ensure that each target test group includes representative samples of different age groups and genders. Furthermore, the difference between the head circumference of all test subjects and the reference head circumference (i.e., standard head circumference) cannot exceed a preset first threshold. For example, the electrode installation mark includes: test subjects selected from indoor work, high-altitude work, outdoor work, and industrial production work environments, test subjects of different age groups are selected, and gender balance is achieved in each age group; in each age group, a head circumference range from 10% lower than the normal human head circumference range to 10% higher than the normal human head circumference range is selected from small to large. The setting of this threshold ensures that the head circumference of the test subject is within a reasonable range, avoiding deviations in the electrode installation mark due to excessive individual differences. This grouping method ensures the extensiveness and scientificity of the test and can meet the monitoring needs of different populations.

[0045] Step S302, obtaining the preset installation positions, and marking the electrode installation for each target test group in turn based on the preset installation positions, wherein each test object includes electrode markings corresponding to all preset installation positions.

[0046] Specifically, the preset electrode installation position is the optimal electrode placement position selected based on the anatomical features and physiological data analysis of the forehead area. For each test subject in each target test group, the electrode installation position will be accurately calibrated according to their head circumference and facial features. By using precise measurement tools and methods, ensure that the marking position of each test subject in the forehead area is consistent to avoid test errors caused by marking position deviation. For example, 4 positions are selected in the forehead area of ​​the test subject for electrode marking, namely the left and right temples, one finger width above the left eyebrow arch, and two finger widths below the left forehead hairline.

[0047] As a possible implementation, performing an electrode test based on each electrode mark and determining a first target position where the sensing electrodes are closely installed based at least on a resistance value obtained by the electrode test includes:

[0048] Step S401, performing an electrode test at each electrode mark through a single sensing electrode to obtain a plurality of resistance values, and determining a third target position for installing the single sensing electrode based at least on the resistance values, the third target position being a position where the single sensing electrode is closely installed;

[0049] Specifically, at the pre-calibrated electrode mark position, a single sensing electrode is used to perform a resistance test. An electrode is placed at a set position on the test subject's forehead. The signal acquisition device is started and the resistance value between the electrode and the skin is recorded. At the same time, parameters such as contact pressure, contact area, and skin temperature are recorded. The resistance value reflects the tightness of the electrode-skin contact. A lower resistance value usually means that the electrode is in closer contact with the skin and has better signal conduction performance. Based on the measured resistance value, the position where the electrode is installed most tightly can be determined, which is called the third target position.

[0050] Step S402, performing random combination based on the electrode marks to obtain multiple candidate installation combinations, performing electrode tests based on each candidate installation combination to obtain multiple resistance value groups, and determining a target installation combination for installing multiple sensing electrodes based at least on each resistance value group;

[0051] Specifically, multiple alternative installation combinations are generated based on the combination of all electrode marks. These combinations represent different electrode installation position schemes, with the aim of further optimizing the installation scheme. For each alternative installation combination, an electrode test is performed, the resistance value of each electrode under the corresponding combination is measured, and a resistance value group is obtained. By analyzing the test results of multiple alternative installation combinations and comparing the resistance values ​​of different combinations, several target installation combinations are selected. The resistance values ​​of these combinations are low, indicating that the electrodes are installed tightly at these locations and are suitable for monitoring tasks.

[0052] Step S403: determine the third target position and the installation position included in the target installation combination as the first target position.

[0053] Specifically, the tightest single electrode installation position (third target position) is combined with the best electrode installation combination (target installation combination) selected from multiple alternative installation combinations. The final result is to determine the first target position, that is, the optimal electrode installation scheme. This scheme not only takes into account the tight installation position of a single electrode, but also takes into account the comprehensive installation position combination of the electrode, ensuring the overall tightness and accuracy of the electrode in the forehead area, and providing the best monitoring effect.

[0054] As a possible implementation manner, determining a third target position where a single sensing electrode is installed based at least on a resistance value includes:

[0055] Step S501, obtaining feedback data from the test subject, the feedback data at least including whether the existence of the sensing electrode corresponding to the electrode mark can be sensed;

[0056] Specifically, information about the sensing electrode is obtained through the test subject's feedback mechanism. The content of the feedback data includes whether the test subject can perceive the presence of the sensing electrode at the electrode mark. The test subject's feedback can be subjectively perceived by the user or automatically detected by sensors and devices. If the test subject perceives the electrode mark, it indicates that the electrode position may have properly contacted the skin; if the test subject cannot perceive the presence of the sensing electrode, it may indicate that the electrode contact is poor and the installation position needs to be further optimized.

[0057] Step S502, when the feedback data indicates that the existence of the sensing electrode corresponding to the electrode mark cannot be sensed, obtaining the resistance value between the sensing electrode and the skin;

[0058] Specifically, if the feedback data shows that the test subject cannot sense the presence of the electrode, it can be judged that the position of the electrode may be poorly in contact with the skin, resulting in poor signal conduction or the electrode installation position deviates from the optimal position. Therefore, it is further necessary to measure the resistance value between the electrode and the skin to quantify the degree of close contact between the electrode and the skin. A larger resistance value usually means that the electrode has poor contact with the skin and poor signal conduction; while a smaller resistance value indicates that the electrode is installed more tightly and the signal conduction effect is better.

[0059] Step S503: when the resistance value is less than the second threshold, the electrode mark corresponding to the resistance value is determined as the third target position.

[0060] Specifically, when the measured resistance value is less than the preset second threshold, it means that the electrode is in good contact with the skin, the signal conduction effect is good, and it meets the installation requirements. In this case, the electrode mark position with a lower resistance value is the position with the tightest installation, which is called the third target position. This position is determined by the feedback data and the resistance value, ensuring the accuracy of electrode installation and the stability of signal transmission.

[0061] As a possible implementation, electrode tests are performed based on each candidate installation combination to obtain multiple resistance value groups, and target installation combinations for multiple sensing electrodes are determined based at least on each resistance value group, including:

[0062] Step S601, based on the candidate installation combination, obtaining the resistance values ​​corresponding to the electrode marks included in the candidate installation combination to obtain a resistance value group;

[0063] Specifically, based on multiple candidate installation combinations, an electrode test is performed on each electrode mark in each installation combination to obtain the resistance value of each electrode. Each electrode mark corresponds to a resistance value, and the resistance values ​​of all electrode marks will form a resistance value group.

[0064] Step S602, obtaining the total contact area of ​​the sensing electrodes, calculating the ratio of the resistance value group to the total contact area, and obtaining the contact coefficient;

[0065] Specifically, the total contact area of ​​all sensing electrodes is obtained, that is, the sum of the surface areas of each electrode in contact with the skin. Then, based on the relationship between the resistance value of each electrode and the total contact area, the ratio of the resistance value group to the total contact area is calculated to obtain a value called the contact coefficient. The contact coefficient reflects the contact quality between the sensing electrode and the skin. A lower contact coefficient indicates that the electrode has better contact and more stable signal transmission.

[0066] Step S603, predicting a target installation combination of the plurality of sensing electrodes based on the third target position to obtain a predicted installation combination;

[0067] Specifically, multiple candidate installation combinations are predicted by combining the third target position (i.e., the electrode installation position determined by the feedback data and the resistance value). The prediction process takes into account factors such as the resistance value of each electrode, the contact area, and the relative position relationship between the electrodes to deduce the optimal electrode installation combination. The predicted target installation combination should be able to meet the predetermined monitoring requirements, such as the stability and accuracy of signal acquisition.

[0068] Step S604: when the candidate installation combination is consistent with the predicted installation combination and the contact coefficient corresponding to the candidate installation combination is the smallest, the candidate installation combination is determined as the target installation combination.

[0069] Specifically, the alternative installation combination is compared with the predicted installation combination. If the alternative installation combination is consistent with the predicted installation combination, and the contact coefficient corresponding to the alternative installation combination is the minimum value among all the alternative combinations, it means that the installation combination best meets the installation requirements and can provide the best signal transmission effect. In this case, the alternative installation combination is selected as the final target installation combination.

[0070] As a possible implementation method, the recognition accuracy test is performed on each first target position, including:

[0071] Obtain recognition signals of the sensing electrodes at each first target position, and perform accuracy calculation based on the recognition signals: Among them, PRE initial is the accuracy, F is the activation function used to convert the recognition signal into a preset format, and P comb,i is the first target position corresponding to the i-th sensing electrode, E best,i is the contact coefficient of the ith electrode, μ E is the average contact coefficient of all sensing electrodes, σ E is the discrete degree of the contact coefficient, and ω is the frequency coefficient.

[0072] Specifically, each electrode installation position generates a specific identification signal, which can usually be a current, impedance or other physical quantity. This signal can reflect the effect of electrode-skin contact and its stability. By inputting the identification signal into the activation function, it can be converted into a standard format. This format enables the identification signals of different electrodes to be consistent when compared and analyzed. The smaller the contact coefficient, the closer the contact between the electrode and the skin, the better the signal transmission effect, and therefore the greater its contribution to the recognition accuracy. The average value and discreteness of the contact coefficient help to adjust the weights between different electrodes, making the accuracy calculation more objective.

[0073] It can be seen that by testing the recognition accuracy of each first target position, the high accuracy of the sensing electrode installation position can be ensured, thereby ensuring the quality of signal acquisition. This method combines the contact coefficient of the electrode, the frequency response of the signal, and the accuracy calculation of the recognition signal, effectively improving the accuracy of electrode installation and reducing signal distortion caused by installation errors.

[0074] As a possible implementation, before determining the second target position where the sensing electrode accuracy meets the use requirement at least according to the accuracy value obtained by the recognition accuracy test, the method further includes: correcting the accuracy based on the contact coefficient to obtain the accuracy value: PRE final =PRE initial ·θ β Among them, PRE final is the accuracy value, θ is the adjustment factor of the contact coefficient on the recognition accuracy, and β is the nonlinear effect of the contact coefficient.

[0075] Specifically, the contact quality of the electrode (i.e., the contact coefficient) directly affects the stability of its signal transmission. Better contact (smaller contact coefficient) will improve the accuracy of the signal, while poor contact may cause signal loss or errors. The adjustment factor of the contact coefficient can be set according to the actual situation. For example, when the contact coefficient is poor, the θ value may be small, which will cause the corrected accuracy value to decrease; when the contact coefficient is good, the θ value is large, and the corrected accuracy value will remain at a high level. The nonlinear effect β is used for further refinement to ensure that the impact of contact quality on accuracy can meet the actual application requirements.

[0076] It can be seen that by correcting the recognition accuracy based on the contact coefficient, the accuracy calculation of electrode installation can be more in line with practical applications. The corrected accuracy value can better reflect the influence of the contact quality between the electrode and the skin, thereby making the selection of the electrode position more accurate.

[0077] As a possible implementation manner, a second target position where the sensing electrode accuracy meets the use requirements is determined at least according to the accuracy value obtained by the recognition accuracy test. The method also includes: when the accuracy value corresponding to the first target position is greater than or equal to a third threshold, determining the first target position as the second target position.

[0078] Specifically, the accuracy threshold (third threshold) is a preset standard used to evaluate whether the accuracy of the electrode installation position meets the requirements. The threshold can be set according to the needs of the actual application. Generally, the higher the accuracy, the better the contact quality between the electrode and the skin, and the stronger the stability of the signal transmission. For example, when the final recognition accuracy is obtained, it is selected when PRE final The best position of a single electrode or multi-electrode combination with an accuracy value of ≥0.6. If the accuracy value of the first target position does not reach the third threshold, it means that the position does not meet the use requirements and the electrode needs to be reinstalled or adjusted. If the accuracy value meets the requirements, the position is directly confirmed as the second target position.

[0079] As a possible implementation manner, determining a target installation solution based on the second target position includes:

[0080] Step S701, when the second target position is consistent with the third target position, determining the second target position as the target installation solution;

[0081] Specifically, if the second target position is consistent with the third target position, it means that the position has met the use requirements in the previous accuracy test and optimization, and there is no need for additional adjustment. This position is directly selected as the final electrode installation solution.

[0082] Step S702: When the second target position belongs to a target installation combination, the target installation combination including the smallest number of sensing electrodes is determined as a target installation solution.

[0083] Specifically, if the second target location is part of the target installation combination, the number of sensing electrodes in each candidate combination is compared, and the combination with the least number of electrodes is selected as the target installation solution. This ensures that the number of electrodes used is minimized while ensuring the monitoring requirements, and avoids the complexity or redundancy caused by too many electrodes.

[0084] As a possible implementation manner, a target installation combination of multiple sensing electrodes is predicted based on the third target position to obtain a predicted installation combination, and further includes: when all alternative installation combinations are inconsistent with the predicted installation combination, regenerating an alternative installation combination.

[0085] Specifically, according to the predicted electrode positions and requirements, the alternative installation combinations are recalculated and designed. This process includes: re-evaluating parameters such as electrode marking position, contact coefficient, installation accuracy, etc.; ensuring that the new alternative combination meets the monitoring requirements while minimizing the number of electrodes or reducing redundancy; comparing the new combination with the predicted installation plan to ensure their consistency.

[0086] Furthermore, when the predicted installation combination is inconsistent with the current candidate installation combination, it indicates that the current candidate combination may not fully consider the influence of the third target position or its accuracy requirements. Therefore, the system needs to regenerate a new set of candidate installation combinations, which not only ensures the consistency of the electrode installation plan with the predicted installation combination, but also optimizes the electrode position configuration, reduces unnecessary electrode use, and improves system performance.

[0087] The embodiment of the present application also provides a device for determining the installation position of the operator sensing electrode. It should be noted that the device for determining the installation position of the operator sensing electrode in the embodiment of the present application can be used to execute the method for determining the installation position of the operator sensing electrode provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred embodiments, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0088] The following is an introduction to the device for determining the installation position of the operator sensing electrode provided in an embodiment of the present application.

[0089] Figure 3 is a structural block diagram of a device for determining the installation position of an operator sensing electrode according to an embodiment of the present application. Figure 3 As shown, the device includes: a marking unit 10 , a first testing unit 20 , a second testing unit 30 and a determining unit 40 .

[0090] A marking unit 10, configured to perform electrode installation marking on the forehead area of ​​the test subject based on a preset installation position to obtain at least one electrode mark;

[0091] Specifically, the initial placement of the electrodes is determined by precisely marking the forehead area of ​​the test subject. The preset marking positions are comprehensively considered by scientifically selecting the age, gender, head circumference range and other conditions of the test subjects in different working environments. Through these markings, it can ensure a wide coverage of the test and provide accurate electrode placement positions for different types of operations and working environments.

[0092] A first testing unit 20, configured to perform an electrode test based on each electrode mark, and determine a first target position where the sensing electrode is closely installed according to at least a resistance value obtained by the electrode test;

[0093] Specifically, the electrode marking position of the test object is used for electrode placement. Through single-electrode or multi-electrode combination testing, the contact resistance value, contact pressure, contact area and other parameters between the electrode and the skin are recorded to determine the contact effect of the electrode. The resistance value between the electrode and the skin is a key indicator to determine whether the electrode is installed tightly. When the contact resistance value is low, it indicates that the electrode is in good contact with the skin and the contact effect is ideal, thereby determining whether the electrode installation position is appropriate to ensure that the selected electrode position achieves the best contact effect and improve the quality of electrode signal acquisition.

[0094] The second testing unit 30 is used to perform a recognition accuracy test on each first target position, and determine a second target position where the sensing electrode accuracy meets the use requirement at least according to the accuracy value obtained by the recognition accuracy test;

[0095] Specifically, the position of the electrode is further optimized through precision testing. After the electrode test of the first target position is completed, the emotion and fatigue recognition accuracy is evaluated. An algorithm based on physiological signals is used to evaluate whether the placement of the electrodes can accurately reflect the emotions and fatigue status of the test subjects. The evaluation indicators of the precision value include emotion recognition rate, fatigue detection accuracy, etc. If the precision value meets the preset requirements, the position is determined as the second target position to meet the monitoring needs.

[0096] The determination unit 40 is configured to determine a target installation scheme based on the second target position, wherein the target installation scheme is a combination scheme of the second target position including the minimum number of sensing electrodes under the condition of achieving the monitoring requirement.

[0097] Specifically, the target installation scheme is further determined based on the accuracy test results of the second target position. When a single electrode or a combination of multiple electrodes is in the same optimal position and meets the accuracy conditions, a single electrode or a combination with a small number of electrodes is selected. The target installation scheme takes into account the realization of monitoring requirements while achieving the best contact effect and recognition accuracy with the least number of electrodes. By optimizing the number and position of electrodes, the equipment cost and complexity of use are reduced while maintaining sufficient monitoring accuracy.

[0098] Through this embodiment, a device for determining the installation position of the sensing electrode of the operator is provided, and the device includes: a marking unit, a first testing unit, a second testing unit and a determining unit. The marking unit is used to mark the electrode installation in the forehead area of ​​the test object based on the preset installation position to obtain at least one electrode mark; the first testing unit is used to perform electrode testing based on each electrode mark, and determine the first target position where the sensing electrode is tightly installed according to at least the resistance value obtained by the electrode test; the second testing unit is used to perform recognition accuracy testing on each first target position, and determine the second target position where the sensing electrode accuracy meets the use requirements according to at least the accuracy value obtained by the recognition accuracy test; the determining unit is used to determine the target installation scheme based on the second target position, and the target installation scheme is a combination scheme including the second target position with the minimum number of sensing electrodes under the condition of achieving the monitoring requirements. The device accurately determines the optimal installation position of the electrode in the forehead area of ​​the operator through multiple tests and optimizations of the electrode contact position, ensures the close contact between the electrode and the skin, thereby achieving high-quality acquisition of physiological signals, reducing signal distortion and interference, and solving the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art.

[0099] As a possible implementation manner, the marking unit includes: a grouping module and an acquisition module.

[0100] A grouping module, used for grouping the test subjects based on the work scenario to obtain multiple target test groups, each target test group includes test subjects of various age groups, and the difference between the head circumference of each test subject and the reference head circumference is within a first threshold;

[0101] Specifically, the test subjects were grouped according to their age, gender, and physiological characteristics such as head circumference to ensure that each target test group included representative samples of different age groups and genders. This grouping method ensures the extensiveness and scientificity of the test and can meet the monitoring needs of different populations.

[0102] The acquisition module is used to acquire the preset installation position and mark the electrode installation of each target test group in turn based on the preset installation position, wherein each test object includes the electrode marks corresponding to all the preset installation positions.

[0103] Specifically, the preset electrode installation position is the optimal electrode placement position selected based on the anatomical characteristics and physiological data analysis of the forehead area. For each test subject in each target test group, the electrode installation position will be accurately calibrated according to their head circumference and facial features.

[0104] As a possible implementation manner, the first testing unit includes: an electrode testing module, a combining module and a position determining module.

[0105] an electrode testing module, configured to perform an electrode test at each electrode mark through a single sensing electrode to obtain a plurality of resistance values, and determine a third target position for installing the single sensing electrode based at least on the resistance values, the third target position being a position where the single sensing electrode is closely installed;

[0106] Specifically, a resistance test is performed using a single sensing electrode at a pre-calibrated electrode marking position. An electrode is placed at a set position on the test subject's forehead. The signal acquisition device is started and the resistance value between the electrode and the skin is recorded. Parameters such as contact pressure, contact area, and skin temperature are also recorded. The resistance value reflects the degree of contact between the electrode and the skin. A lower resistance value usually means that the contact between the electrode and the skin is tighter and the signal conduction performance is better.

[0107] A combination module, configured to perform random combination based on electrode marks to obtain a plurality of candidate installation combinations, perform electrode tests based on each candidate installation combination to obtain a plurality of resistance value groups, and determine a target installation combination for installing a plurality of sensing electrodes based at least on each resistance value group;

[0108] Specifically, multiple alternative installation combinations are generated based on the combination of all electrode marks. These combinations represent different electrode installation position schemes, with the aim of further optimizing the installation scheme. For each alternative installation combination, an electrode test is performed, the resistance value of each electrode under the corresponding combination is measured, and a resistance value group is obtained. By analyzing the test results of multiple alternative installation combinations and comparing the resistance values ​​of different combinations, several target installation combinations are selected. The resistance values ​​of these combinations are low, indicating that the electrodes are installed tightly at these locations and are suitable for monitoring tasks.

[0109] The position determination module is used to determine the third target position and the installation position included in the target installation combination as the first target position.

[0110] Specifically, the tightest single electrode installation position (third target position) is combined with the best electrode installation combination (target installation combination) selected from multiple alternative installation combinations. The final result is to determine the first target position, that is, the optimal electrode installation scheme. This scheme not only takes into account the tight installation position of a single electrode, but also takes into account the comprehensive installation position combination of the electrode, ensuring the overall tightness and accuracy of the electrode in the forehead area, and providing the best monitoring effect.

[0111] As a possible implementation manner, the electrode testing module includes: a data acquisition submodule, a first resistance acquisition submodule and a position determination submodule.

[0112] A data acquisition submodule, used to acquire feedback data from the test subject, the feedback data at least including whether the existence of the sensing electrode corresponding to the electrode mark can be sensed;

[0113] Specifically, information about the sensing electrode is obtained through the test subject's feedback mechanism. The content of the feedback data includes whether the test subject can perceive the presence of the sensing electrode at the electrode mark. The test subject's feedback can be subjectively perceived by the user or automatically detected by sensors and devices. If the test subject perceives the electrode mark, it indicates that the electrode position may have properly contacted the skin; if the test subject cannot perceive the presence of the sensing electrode, it may indicate that the electrode contact is poor and the installation position needs to be further optimized.

[0114] A first resistance acquisition submodule, used for acquiring the resistance value between the sensing electrode and the skin when the feedback data indicates that the existence of the sensing electrode corresponding to the electrode mark cannot be sensed;

[0115] Specifically, if the feedback data shows that the test subject cannot sense the presence of the electrode, it can be judged that the position of the electrode may be poorly in contact with the skin, resulting in poor signal conduction or the electrode installation position deviates from the optimal position. Therefore, it is further necessary to measure the resistance value between the electrode and the skin to quantify the degree of close contact between the electrode and the skin. A larger resistance value usually means that the electrode has poor contact with the skin and poor signal conduction; while a smaller resistance value indicates that the electrode is installed more tightly and the signal conduction effect is better.

[0116] The position determination submodule is used to determine the electrode mark corresponding to the resistance value as the third target position when the resistance value is less than the second threshold value.

[0117] Specifically, when the measured resistance value is less than the preset second threshold value, it means that the electrode is in good contact with the skin, the signal conduction effect is good, and the installation requirements are met. In this case, the electrode mark position with a lower resistance value is the position with the tightest installation, which is called the third target position.

[0118] As a possible implementation manner, the combination module includes: a second resistance acquisition submodule, a contact coefficient submodule, a prediction module and a combination determination module.

[0119] A second resistance acquisition submodule is used to acquire resistance values ​​corresponding to electrode marks included in the candidate installation combination based on the candidate installation combination to obtain a resistance value group;

[0120] Specifically, based on multiple candidate installation combinations, an electrode test is performed on each electrode mark in each installation combination to obtain the resistance value of each electrode. Each electrode mark corresponds to a resistance value, and the resistance values ​​of all electrode marks will form a resistance value group.

[0121] The contact coefficient submodule is used to obtain the total contact area of ​​the sensing electrode, calculate the ratio of the resistance value group and the total contact area, and obtain the contact coefficient;

[0122] Specifically, the total contact area of ​​all sensing electrodes is obtained, that is, the sum of the surface areas of each electrode in contact with the skin. Then, based on the relationship between the resistance value of each electrode and the total contact area, the ratio of the resistance value group to the total contact area is calculated to obtain a value called the contact coefficient. The contact coefficient reflects the contact quality between the sensing electrode and the skin. A lower contact coefficient indicates that the electrode has better contact and more stable signal transmission.

[0123] A prediction module, configured to predict a target installation combination of the plurality of sensing electrodes based on the third target position to obtain a predicted installation combination;

[0124] Specifically, multiple candidate installation combinations are predicted by combining the third target position (i.e., the electrode installation position determined by the feedback data and the resistance value). The prediction process takes into account factors such as the resistance value of each electrode, the contact area, and the relative position relationship between the electrodes to deduce the optimal electrode installation combination. The predicted target installation combination should be able to meet the predetermined monitoring requirements, such as the stability and accuracy of signal acquisition.

[0125] The combination determination module is used to determine the alternative installation combination as the target installation combination when the alternative installation combination is consistent with the predicted installation combination and the contact coefficient corresponding to the alternative installation combination is the smallest.

[0126] Specifically, the alternative installation combination is compared with the predicted installation combination. If the alternative installation combination is consistent with the predicted installation combination, and the contact coefficient corresponding to the alternative installation combination is the minimum value among all the alternative combinations, it means that the installation combination best meets the installation requirements and can provide the best signal transmission effect. In this case, the alternative installation combination is selected as the final target installation combination.

[0127] As a possible implementation manner, the second testing unit includes: an accuracy calculation module.

[0128] The accuracy calculation module is used to obtain the recognition signal of the sensing electrode at each first target position and perform accuracy calculation based on the recognition signal:

[0129] Among them, PRE initial is the accuracy, F is the activation function used to convert the recognition signal into a preset format, and P comb,i is the first target position corresponding to the i-th sensing electrode, E best,i is the contact coefficient of the ith electrode, μ E is the average contact coefficient of all sensing electrodes, σ E is the discrete degree of the contact coefficient, and ω is the frequency coefficient.

[0130] It can be seen that by testing the recognition accuracy of each first target position, the high accuracy of the sensing electrode installation position can be ensured, thereby ensuring the quality of signal acquisition. This method combines the contact coefficient of the electrode, the frequency response of the signal, and the accuracy calculation of the recognition signal, effectively improving the accuracy of electrode installation and reducing signal distortion caused by installation errors.

[0131] As a possible implementation manner, the second test unit further includes: a correction module.

[0132] Correction module, used to correct the accuracy based on the contact coefficient to obtain the precision value: PRE final =PRE initial ·θ β Among them, PRE final is the accuracy value, θ is the adjustment factor of the contact coefficient on the recognition accuracy, and β is the nonlinear effect of the contact coefficient.

[0133] It can be seen that by correcting the recognition accuracy based on the contact coefficient, the accuracy calculation of electrode installation can be more in line with practical applications. The corrected accuracy value can better reflect the influence of the contact quality between the electrode and the skin, thereby making the selection of the electrode position more accurate.

[0134] As a possible implementation manner, the second test unit further includes: a target position determination module.

[0135] The target position determination module is used to determine the first target position as the second target position when the accuracy value corresponding to the first target position is greater than or equal to a third threshold.

[0136] Specifically, the accuracy threshold (third threshold) is a preset standard used to evaluate whether the accuracy of the electrode installation position meets the requirements. The threshold can be set according to the needs of actual applications. Generally, the higher the accuracy, the better the quality of the electrode-skin contact and the stronger the stability of the signal transmission. If the accuracy value of the first target position does not reach the third threshold, it means that the position does not meet the use requirements and the electrode needs to be reinstalled or adjusted. If the accuracy value meets the requirements, the position is directly confirmed as the second target position.

[0137] As a possible implementation manner, the determining unit includes: a first solution determining module and a second solution determining module.

[0138] A first solution determination module, configured to determine the second target position as a target installation solution when the second target position is consistent with the third target position;

[0139] Specifically, if the second target position is consistent with the third target position, it means that the position has met the use requirements in the previous accuracy test and optimization, and there is no need for additional adjustment. This position is directly selected as the final electrode installation solution.

[0140] The second solution determination module is configured to determine the target installation combination including the smallest number of sensing electrodes as the target installation solution when the second target position belongs to the target installation combination.

[0141] Specifically, if the second target location is part of the target installation combination, the number of sensing electrodes in each candidate combination is compared, and the combination with the least number of electrodes is selected as the target installation solution. This ensures that the number of electrodes used is minimized while ensuring the monitoring requirements, and avoids the complexity or redundancy caused by too many electrodes.

[0142] As a possible implementation manner, the prediction module further includes: a regeneration submodule.

[0143] The regeneration submodule is used to regenerate alternative installation combinations when the alternative installation combinations are inconsistent with the predicted installation combinations.

[0144] Furthermore, when the predicted installation combination is inconsistent with the current candidate installation combination, it indicates that the current candidate combination may not fully consider the influence of the third target position or its accuracy requirements. Therefore, the system needs to regenerate a new set of candidate installation combinations, which not only ensures the consistency of the electrode installation plan with the predicted installation combination, but also optimizes the electrode position configuration, reduces unnecessary electrode use, and improves system performance.

[0145] The above-mentioned device for determining the installation position of the operator sensing electrode includes a processor and a memory, and the above-mentioned marking unit, the first test unit, the second test unit and the determination unit are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize the corresponding functions. The above-mentioned modules are all located in the same processor; or, the above-mentioned modules are located in different processors in the form of any combination.

[0146] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art can be solved by adjusting kernel parameters.

[0147] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0148] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program, wherein when the program is run, the device where the computer-readable storage medium is located is controlled to execute the method for determining the installation position of the operator sensing electrode.

[0149] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the method for determining the installation position of the operator sensing electrode is executed when the program is run.

[0150] An embodiment of the present invention provides a communication system, which includes a primary communication domain, a secondary communication domain processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, at least the steps of the method for determining the installation position of the operator's sensing electrode are implemented.

[0151] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that initializes at least the steps of the above-mentioned method for determining the installation position of the operator sensing electrode.

[0152] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0153] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0154] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0155] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0156] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0157] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0158] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0159] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0160] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0161] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0162] 1) The method for determining the installation position of the sensing electrode of the operator of the present application firstly performs electrode installation marking on the forehead area of ​​the test object based on the preset installation position to obtain at least one electrode mark; then performs electrode testing based on each electrode mark, and determines the first target position where the sensing electrode is tightly installed based on at least the resistance value obtained by the electrode test; then performs recognition accuracy testing on each first target position, and determines the second target position where the sensing electrode accuracy meets the use requirements based on at least the accuracy value obtained by the recognition accuracy test; finally, determines the target installation scheme based on the second target position, and the target installation scheme is a combination scheme including the second target position with the minimum number of sensing electrodes under the condition of achieving the monitoring requirements. The present application provides an efficient and accurate electrode installation method, which can effectively optimize the electrode placement scheme by calibrating and testing the electrode position in a variety of operating environments, and realize the acquisition of physiological signals with the minimum number of electrodes at the most accurate position, thereby improving the signal acquisition quality of the electrode, optimizing the use of the electrode, and meeting the precise monitoring requirements in different operating environments. It solves the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art.

[0163] 2) The device for determining the installation position of the sensing electrode of the operator of the present application comprises: a marking unit, a first testing unit, a second testing unit and a determining unit. The marking unit is used to mark the electrode installation in the forehead area of ​​the test object based on the preset installation position to obtain at least one electrode mark; the first testing unit is used to perform electrode testing based on each electrode mark, and determine the first target position where the sensing electrode is tightly installed at least according to the resistance value obtained by the electrode test; the second testing unit is used to perform recognition accuracy testing on each first target position, and determine the second target position where the sensing electrode accuracy meets the use requirements at least according to the accuracy value obtained by the recognition accuracy test; the determining unit is used to determine the target installation scheme based on the second target position, and the target installation scheme is a combination scheme including the second target position with the minimum number of sensing electrodes under the condition of achieving the monitoring requirements. The device accurately determines the optimal installation position of the electrode in the forehead area of ​​the operator through multiple tests and optimizations of the electrode contact position, ensures the close contact between the electrode and the skin, thereby achieving high-quality acquisition of physiological signals, reducing signal distortion and interference, and solving the problem of insufficient monitoring accuracy caused by unstable electrode contact or unreasonable configuration in the prior art.

[0164] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining the installation position of an operator's induction electrode, characterized in that: include: Performing electrode installation marking on the forehead area of ​​the test subject based on the preset installation position to obtain at least one electrode mark; Performing an electrode test based on each of the electrode marks, and determining a first target position where the sensing electrodes are closely installed based at least on a resistance value obtained by the electrode test; Performing a recognition accuracy test on each of the first target positions, and determining a second target position where the accuracy of the sensing electrode meets the use requirement at least according to the accuracy value obtained by the recognition accuracy test; A target installation scheme is determined based on the second target position, where the target installation scheme is a combination scheme of the second target position including the minimum number of sensing electrodes under the condition of achieving monitoring requirements.

2. The method according to claim 1, characterized in that Electrode installation markings are made on the forehead area of ​​the test subject based on the preset installation positions, including: The test subjects are grouped based on the work scenario to obtain a plurality of target test groups, each of which includes the test subjects of each age group, and the difference between the head circumference of each test subject and the reference head circumference is within a first threshold; The preset installation positions are obtained, and electrode installation markings are performed on each target test group in turn based on the preset installation positions, wherein each test object includes the electrode markings corresponding to all the preset installation positions.

3. The method according to claim 1, characterized in that: Performing an electrode test based on each of the electrode marks and determining a first target position where the sensing electrodes are closely installed at least according to a resistance value obtained by the electrode test, comprises: Performing the electrode test at each electrode mark through a single sensing electrode to obtain a plurality of resistance values, and determining a third target position for installing the single sensing electrode based at least on the resistance values, the third target position being a position where the single sensing electrode is closely installed; Performing random combinations based on the electrode marks to obtain a plurality of candidate installation combinations, performing the electrode test based on each of the candidate installation combinations to obtain a plurality of resistance value groups, and determining a plurality of target installation combinations for installing the sensing electrodes based at least on each of the resistance value groups; The installation position included in the third target position and the target installation combination is determined as the first target position.

4. The method according to claim 3, characterized in that Determining a third target position where a single sensing electrode is installed based at least on the resistance value comprises: Acquiring feedback data from the test subject, the feedback data at least including whether the presence of the sensing electrode corresponding to the electrode mark can be sensed; When the feedback data indicates that the existence of the sensing electrode corresponding to the electrode mark cannot be sensed, obtaining the resistance value between the sensing electrode and the skin; When the resistance value is less than a second threshold, the electrode mark corresponding to the resistance value is determined as the third target position.

5. The method according to claim 3, characterized in that: Performing the electrode test based on each of the candidate installation combinations to obtain a plurality of resistance value groups, and determining a plurality of target installation combinations for installing the sensing electrodes based at least on each of the resistance value groups, comprises: Based on the candidate installation combination, acquiring the resistance value corresponding to the electrode mark included in the candidate installation combination to obtain the resistance value group; Acquiring a total contact area of ​​the sensing electrodes, calculating a ratio of the resistance value group to the total contact area, and obtaining a contact coefficient; Predicting the target installation combination of the plurality of sensing electrodes based on the third target position to obtain a predicted installation combination; When the candidate installation combination is consistent with the predicted installation combination and the contact coefficient corresponding to the candidate installation combination is the smallest, the candidate installation combination is determined as the target installation combination.

6. The method according to claim 3, characterized in that Performing a recognition accuracy test on each of the first target positions includes: Obtaining identification signals of the sensing electrodes at each of the first target positions, and performing accuracy calculation based on the identification signals: Among them, PRE initial is the accuracy, F is an activation function used to convert the recognition signal into a preset format, and P comb,i is the first target position corresponding to the i-th sensing electrode, E best,i is the contact coefficient of the ith electrode, μ E is the average value of the contact coefficients of all the sensing electrodes, σ E is the discrete degree of the contact coefficient, and ω is the frequency coefficient.

7. The method according to claim 6, characterized in that Before determining the second target position where the sensing electrode accuracy meets the use requirement at least according to the accuracy value obtained by the recognition accuracy test, the method further includes: The accuracy is corrected based on the contact coefficient to obtain the precision value: FOR final =FOR initial ·θ β ; Among them, PRE final is the accuracy value, θ is the adjustment factor of the contact coefficient on the recognition accuracy, β is the nonlinear effect of the contact coefficient.

8. The method according to claim 7, characterized in that Determining a second target position where the sensing electrode accuracy meets the use requirements at least according to the accuracy value obtained by the recognition accuracy test, the method further includes: When the accuracy value corresponding to the first target position is greater than or equal to a third threshold, the first target position is determined as the second target position.

9. The method according to claim 8, characterized in that Determining a target installation solution based on the second target position includes: In a case where the second target position is consistent with the third target position, determining the second target position as the target installation solution; In the case that the second target position belongs to the target installation combination, the target installation combination including the smallest number of sensing electrodes is determined as the target installation solution.

10. The method according to claim 9, characterized in that Predicting the target installation combination of the plurality of sensing electrodes based on the third target position to obtain a predicted installation combination further includes: In the case that the alternative installation combinations are inconsistent with the predicted installation combination, the alternative installation combinations are regenerated.

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