Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859175
Liangquan Jia, Xiangge Li, T. Zhu, Ying Zang, Xu Huang, Huanan Leng, Lu Gao
In view of the problems of low detection accuracy, inability to monitor real-time and high cost of measuring instruments in the traditional soil respiratory CO2 concentration detection method, a soil respiratory CO2 concentration online monitoring system is designed by using tunable laser diode absorption spectroscopy technology, which uses the optical path of the three-channel White pool as a CO2 sensor, the DFB laser as the light source, and the real-time inversion processing of the concentration data by the host computer. The host computer software is written by LabViewsoftware, which mainly includes modules such as data acquisition and control, spectral processing, concentration inversion, data and function display, and storage. The system was tested and calibrated in the experimental environment, and the test results showed that the concentration calibration linearity of the three sensors reached more than 0.99. Finally, the actual test verification was carried out in the soil environment of the campus, and the results showed that the change in the relationship between the concentration gradient and the height of the three sensors in the instrument was in line with expectations.
{"title":"Design of soil respiration monitoring system based on TDLAS technology","authors":"Liangquan Jia, Xiangge Li, T. Zhu, Ying Zang, Xu Huang, Huanan Leng, Lu Gao","doi":"10.1109/ICMSP55950.2022.9859175","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859175","url":null,"abstract":"In view of the problems of low detection accuracy, inability to monitor real-time and high cost of measuring instruments in the traditional soil respiratory CO2 concentration detection method, a soil respiratory CO2 concentration online monitoring system is designed by using tunable laser diode absorption spectroscopy technology, which uses the optical path of the three-channel White pool as a CO2 sensor, the DFB laser as the light source, and the real-time inversion processing of the concentration data by the host computer. The host computer software is written by LabViewsoftware, which mainly includes modules such as data acquisition and control, spectral processing, concentration inversion, data and function display, and storage. The system was tested and calibrated in the experimental environment, and the test results showed that the concentration calibration linearity of the three sensors reached more than 0.99. Finally, the actual test verification was carried out in the soil environment of the campus, and the results showed that the change in the relationship between the concentration gradient and the height of the three sensors in the instrument was in line with expectations.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128403160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859219
Jie Wu, Zheng Li
In recent years, the development of emerging fields has received more attention. such as: Unmanned aerial vehicle (uav), new energy, electric vehicles, robots, etc. so as also drive their motor's researchers attention, motor control performance will directly affect the characteristics of the industrial control system, the permanent magnet synchronous motor and stand out with its own merits, permanent magnet synchronous motor is a nonlinear and strong coupling system, When the internal control systems affected by external disturbances or motor parameter changes, the traditional PI control can not meet the actual demand, therefore in order to improve the dynamic performance of the permanent magnet synchronous motor vector control system, based on the sliding mode theory, a power law of approach sliding mode controller is proposed to replace PI controller to improve the efficiency of system control, The feasibility of this method is proved in Simulink.
{"title":"Simulation of Permanent Magnet Synchronous Motor Vector Control Based on Power Law of Approach","authors":"Jie Wu, Zheng Li","doi":"10.1109/ICMSP55950.2022.9859219","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859219","url":null,"abstract":"In recent years, the development of emerging fields has received more attention. such as: Unmanned aerial vehicle (uav), new energy, electric vehicles, robots, etc. so as also drive their motor's researchers attention, motor control performance will directly affect the characteristics of the industrial control system, the permanent magnet synchronous motor and stand out with its own merits, permanent magnet synchronous motor is a nonlinear and strong coupling system, When the internal control systems affected by external disturbances or motor parameter changes, the traditional PI control can not meet the actual demand, therefore in order to improve the dynamic performance of the permanent magnet synchronous motor vector control system, based on the sliding mode theory, a power law of approach sliding mode controller is proposed to replace PI controller to improve the efficiency of system control, The feasibility of this method is proved in Simulink.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129953010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859168
Housheng Xu, Jimeng Li
For networkeded control systems with time delays, while considering the influence of external disturbances, a criterion is derived to ensure that the actuator is robust when a fault occurs, and a robust $H_{infty}$ fault-tolerant controller design method is given. A fault diagnosis system is designed and fault-tolerant control is implemented using the closed-loop poles as fault information. The closed-loop system poles are used as input to an Extreme Learning Machine (ELM) fault diagnosis model to achieve fault-tolerant control of the different channels of the system actuator. Finally, a simulation example is used to verify the effectiveness of the described method.
{"title":"Modelling and tolerant control of the time-delay networked control system based on pole configuration","authors":"Housheng Xu, Jimeng Li","doi":"10.1109/ICMSP55950.2022.9859168","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859168","url":null,"abstract":"For networkeded control systems with time delays, while considering the influence of external disturbances, a criterion is derived to ensure that the actuator is robust when a fault occurs, and a robust $H_{infty}$ fault-tolerant controller design method is given. A fault diagnosis system is designed and fault-tolerant control is implemented using the closed-loop poles as fault information. The closed-loop system poles are used as input to an Extreme Learning Machine (ELM) fault diagnosis model to achieve fault-tolerant control of the different channels of the system actuator. Finally, a simulation example is used to verify the effectiveness of the described method.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129018220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859143
Fei Li, Hao Wu, Ge Lei, Fangxing Lyu, L. Fan, Xiaoxiang Zhang
Torque measurement and analysis system for iron roughnecks are designed to solve the problems of low accuracy by using pressure sensors and no torque data storage. Firstly, this paper analyzed the reasons for the low accuracy of torque calculation by using a pressure sensor. According to the iron roughneck's mechanical structure and motion characteristics, a force sensor was designed to replace the pressure sensor. The accuracy of torque measurement is improved by electrical measurement, and the torque is transmitted and recorded digitally through the user interface. The installation method has been tested on a universal testing machine, and the measurement error of the system less than 1%, which meets the design requirements. Finally, through the field application, this method can accurately identify the operation status of the iron roughneck, and the user interface can completely record the production data of the iron roughneck, and the waveform record is complete. The practical application shows that this method realizes the digital display and data storage of torque and has certain practical value.
{"title":"Design and Application of Torque Measurement and Analysis System for Iron Roughneck","authors":"Fei Li, Hao Wu, Ge Lei, Fangxing Lyu, L. Fan, Xiaoxiang Zhang","doi":"10.1109/ICMSP55950.2022.9859143","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859143","url":null,"abstract":"Torque measurement and analysis system for iron roughnecks are designed to solve the problems of low accuracy by using pressure sensors and no torque data storage. Firstly, this paper analyzed the reasons for the low accuracy of torque calculation by using a pressure sensor. According to the iron roughneck's mechanical structure and motion characteristics, a force sensor was designed to replace the pressure sensor. The accuracy of torque measurement is improved by electrical measurement, and the torque is transmitted and recorded digitally through the user interface. The installation method has been tested on a universal testing machine, and the measurement error of the system less than 1%, which meets the design requirements. Finally, through the field application, this method can accurately identify the operation status of the iron roughneck, and the user interface can completely record the production data of the iron roughneck, and the waveform record is complete. The practical application shows that this method realizes the digital display and data storage of torque and has certain practical value.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"253 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129047041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859107
Fei Li, Yu Mei, Yuan Liu, Rui Zhang
In the rotary steering drilling process, directional drilling engineers use downlink commands to control the drilling tool according to the wellbore trajectory, and actual downlink commands are affected by various transmission processes. To further investigate the effect of drilling parameters on downlink command transmission, shorten the drilling cycle, and improve the drilling efficiency by building a downlink command simulation model in Simulink to simulate the actual transmission process of the downlink signal in the well. The decoding correlation rate of downlink commands received by downhole tools was used as a measure for DOE tests. The Box-Behnken experimental design method was used to investigate the effect of drilling parameters on the magnitude of the decoding correlation rate of downlink command signals. After response surface analysis, the factors that significantly affect the decoding correlation of downlink commands are obtained. And the optimal solutions of each parameter are obtained when the decoding correlation rate reaches 0.96.
{"title":"Study of Drilling Parameter Effects on Downlink Command Signal Transmission using the DOE Method","authors":"Fei Li, Yu Mei, Yuan Liu, Rui Zhang","doi":"10.1109/ICMSP55950.2022.9859107","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859107","url":null,"abstract":"In the rotary steering drilling process, directional drilling engineers use downlink commands to control the drilling tool according to the wellbore trajectory, and actual downlink commands are affected by various transmission processes. To further investigate the effect of drilling parameters on downlink command transmission, shorten the drilling cycle, and improve the drilling efficiency by building a downlink command simulation model in Simulink to simulate the actual transmission process of the downlink signal in the well. The decoding correlation rate of downlink commands received by downhole tools was used as a measure for DOE tests. The Box-Behnken experimental design method was used to investigate the effect of drilling parameters on the magnitude of the decoding correlation rate of downlink command signals. After response surface analysis, the factors that significantly affect the decoding correlation of downlink commands are obtained. And the optimal solutions of each parameter are obtained when the decoding correlation rate reaches 0.96.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129094651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859041
Yingxin Liu, Yali Liu, Qiuzhi Song
Predicting joint torque is increasingly important for wearable devices, especially exoskeleton robots. Continuous joint torque prediction based on surface electromyography (sEMG) signals and joint angles can be used for human-machine cooperative control of exoskeletons. Improved particle swarm optimization (IPSO) algorithm was proposed to optimize long short-term memory (LSTM) neural network, which was trained with lower-limb joint angles and sEMG signals of ten muscles to predict hip flexion/extension, knee flexion/extension and ankle dorsiflexion/plantarflexion torques. We used root mean square error (RMSE) and coefficient of determination between predicted and measured joint torques to evaluate the prediction performance. According to the results, compared with LSTM and PSO-LSTM (Particle Swarm Optimization-based LSTM) model, the mean RMSE of IPSO-LSTM (Improved Particle Swarm Optimization-based LSTM) decreases by 21.5% and 12.7%, respectively, and the mean coefficient of determination increases 0.013 and 0.0057, respectively. Therefore, IPSO-LSTM has higher accuracy in continuous prediction of joint torque of lower limbs.
对于可穿戴设备，尤其是外骨骼机器人来说，关节扭矩预测变得越来越重要。基于表面肌电信号和关节角度的关节力矩连续预测可用于外骨骼的人机协同控制。提出了改进粒子群优化算法(IPSO)来优化长短期记忆(LSTM)神经网络，该神经网络使用下肢关节角度和10块肌肉的表面肌电信号进行训练，预测髋部屈伸、膝关节屈伸和踝关节背屈/跖屈扭矩。我们使用预测和测量关节扭矩之间的均方根误差(RMSE)和决定系数来评估预测性能。结果表明，与LSTM和PSO-LSTM (Improved Particle Swarm optimization based LSTM)模型相比，IPSO-LSTM模型的平均RMSE分别降低了21.5%和12.7%，平均决定系数分别提高了0.013和0.0057。因此，IPSO-LSTM在连续预测下肢关节扭矩方面具有更高的精度。
{"title":"Continuous Prediction of Lower-Limb Joint Torque Based on IPSO-LSTM","authors":"Yingxin Liu, Yali Liu, Qiuzhi Song","doi":"10.1109/ICMSP55950.2022.9859041","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859041","url":null,"abstract":"Predicting joint torque is increasingly important for wearable devices, especially exoskeleton robots. Continuous joint torque prediction based on surface electromyography (sEMG) signals and joint angles can be used for human-machine cooperative control of exoskeletons. Improved particle swarm optimization (IPSO) algorithm was proposed to optimize long short-term memory (LSTM) neural network, which was trained with lower-limb joint angles and sEMG signals of ten muscles to predict hip flexion/extension, knee flexion/extension and ankle dorsiflexion/plantarflexion torques. We used root mean square error (RMSE) and coefficient of determination between predicted and measured joint torques to evaluate the prediction performance. According to the results, compared with LSTM and PSO-LSTM (Particle Swarm Optimization-based LSTM) model, the mean RMSE of IPSO-LSTM (Improved Particle Swarm Optimization-based LSTM) decreases by 21.5% and 12.7%, respectively, and the mean coefficient of determination increases 0.013 and 0.0057, respectively. Therefore, IPSO-LSTM has higher accuracy in continuous prediction of joint torque of lower limbs.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131035045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859055
Zugen Lin, Qing Li
In order to realize real-time online monitoring of airflow in ventilation ducts and change the status of traditional intrusive air measurement equipment, which may not be reasonably used in actual industrial production. In this paper, the existing circular air ducts are modified into the form of parallel air ducts, and suitable air measurement segments are selected to measure the air volumes of both the secondary and primary air ducts at the same moment. After getting the air volume of each pipeline in the parallel duct through the measurement cylinder experiment, the air volume of the secondary duct and the total air volume data of the main duct were fitted, and the fitting formula between them was obtained. At the same time, the total air volume of each pipeline in the parallel duct before and after the summation of air flow was compared, and the average error was 2.29%. This shows that the parallel duct wind measurement method proposed in this paper has certain feasibility and provides some reference significance for some working conditions where the operating equipment in the duct cannot be operated reasonably due to the limitations of traditional invasive measuring instruments.
{"title":"Study of Flow Measurement Based on Parallel Duct","authors":"Zugen Lin, Qing Li","doi":"10.1109/ICMSP55950.2022.9859055","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859055","url":null,"abstract":"In order to realize real-time online monitoring of airflow in ventilation ducts and change the status of traditional intrusive air measurement equipment, which may not be reasonably used in actual industrial production. In this paper, the existing circular air ducts are modified into the form of parallel air ducts, and suitable air measurement segments are selected to measure the air volumes of both the secondary and primary air ducts at the same moment. After getting the air volume of each pipeline in the parallel duct through the measurement cylinder experiment, the air volume of the secondary duct and the total air volume data of the main duct were fitted, and the fitting formula between them was obtained. At the same time, the total air volume of each pipeline in the parallel duct before and after the summation of air flow was compared, and the average error was 2.29%. This shows that the parallel duct wind measurement method proposed in this paper has certain feasibility and provides some reference significance for some working conditions where the operating equipment in the duct cannot be operated reasonably due to the limitations of traditional invasive measuring instruments.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127955508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859227
Ningmeng Lu, Zhi Gao
So as to solve the problem that the non-line-of-sight (NLOS) error caused by the indoor complicated environment affects the positioning accuracy of Ultra Wideband (UWB) technology, an indoor collaborative positioning algorithm supported by Kalman and Taylor algorithm is proposed during this paper. Firstly, the ranging value obtained by UWB technology is filtered by incremental Kalman filter to eliminate the influence of NLOS error and measurement system error. Then, taking the calculation result of the least square method (LSM) as the initial value, the Taylor algorithm is used for iteration to realize the positioning. The experimental results show that the method can effectively eliminate the interference of complex environment in the positioning system, decrease the NLOS error and improve the precision of positioning.
{"title":"Ultra Wideband indoor positioning method based on Kalman filter and Taylor algorithm","authors":"Ningmeng Lu, Zhi Gao","doi":"10.1109/ICMSP55950.2022.9859227","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859227","url":null,"abstract":"So as to solve the problem that the non-line-of-sight (NLOS) error caused by the indoor complicated environment affects the positioning accuracy of Ultra Wideband (UWB) technology, an indoor collaborative positioning algorithm supported by Kalman and Taylor algorithm is proposed during this paper. Firstly, the ranging value obtained by UWB technology is filtered by incremental Kalman filter to eliminate the influence of NLOS error and measurement system error. Then, taking the calculation result of the least square method (LSM) as the initial value, the Taylor algorithm is used for iteration to realize the positioning. The experimental results show that the method can effectively eliminate the interference of complex environment in the positioning system, decrease the NLOS error and improve the precision of positioning.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131314148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9858972
Zhengshuai Jiang, Qizhi Zhang
According to the kinematic constraints of the manipulator, a time-optimized 3-5-3 polynomial interpolation algorithm based on particle swarm optimization in joint space is proposed, which solves the shortcomings of polynomial interpolation trajectory planning with high order and no convex hull. Particle swarm optimization is simple in structure, easy to implement, and easy to adjust parameters. It directly selects the polynomial interpolation time as a variable, searches in the target space, and obtains the shortest interpolation time under the specified speed constraint. The simulation is carried out on the experimental platform, and compared with the traditional 3-5-3 polynomial interpolation of position, velocity and acceleration curves, it is proved that the method can achieve shorter running time and better stability of the manipulator.
{"title":"Time optimal trajectory planning of five degrees of freedom manipulator based on PSO algorithm","authors":"Zhengshuai Jiang, Qizhi Zhang","doi":"10.1109/ICMSP55950.2022.9858972","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9858972","url":null,"abstract":"According to the kinematic constraints of the manipulator, a time-optimized 3-5-3 polynomial interpolation algorithm based on particle swarm optimization in joint space is proposed, which solves the shortcomings of polynomial interpolation trajectory planning with high order and no convex hull. Particle swarm optimization is simple in structure, easy to implement, and easy to adjust parameters. It directly selects the polynomial interpolation time as a variable, searches in the target space, and obtains the shortest interpolation time under the specified speed constraint. The simulation is carried out on the experimental platform, and compared with the traditional 3-5-3 polynomial interpolation of position, velocity and acceleration curves, it is proved that the method can achieve shorter running time and better stability of the manipulator.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"105 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131335247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859209
Xiao-zhou Feng, Cong Sun, Xia Liu
In this paper, a double time-delay flux neuron system with magnetron memristor is proposed by the classical HR neuron system. The stability, existence, direction of bifurcation and bifurcation cycle solution of the system are studied by using Routh Hurwitz judgment method and central manifold theorem in our work [18]. we mainly study Numerical simulation solution on the time series diagram and phase diagram of the system under different time lag by numerical simulation with MATLAB software. The simulation shows that under appropriate conditions, the time delay is less than a critical value, and the system is asymptotically stable. When the time delay exceeds the critical value, Hopf bifurcation occurs at the equilibrium point of the system. As a result, through the numerical simulation diagram, we intuitively obtain that there exists a bifurcation periodic solution in the specific time-delay range of the system, and the change law of spike discharge behavior induced by increasing double time-delay is clarified, which is helpful to explain the abnormal discharge behavior of brain or nerve center caused by electromagnetic radiation.
{"title":"Numerical simulation and Hopf bifurcation solutions of flux neuron system with double time delays*","authors":"Xiao-zhou Feng, Cong Sun, Xia Liu","doi":"10.1109/ICMSP55950.2022.9859209","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859209","url":null,"abstract":"In this paper, a double time-delay flux neuron system with magnetron memristor is proposed by the classical HR neuron system. The stability, existence, direction of bifurcation and bifurcation cycle solution of the system are studied by using Routh Hurwitz judgment method and central manifold theorem in our work [18]. we mainly study Numerical simulation solution on the time series diagram and phase diagram of the system under different time lag by numerical simulation with MATLAB software. The simulation shows that under appropriate conditions, the time delay is less than a critical value, and the system is asymptotically stable. When the time delay exceeds the critical value, Hopf bifurcation occurs at the equilibrium point of the system. As a result, through the numerical simulation diagram, we intuitively obtain that there exists a bifurcation periodic solution in the specific time-delay range of the system, and the change law of spike discharge behavior induced by increasing double time-delay is clarified, which is helpful to explain the abnormal discharge behavior of brain or nerve center caused by electromagnetic radiation.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125472987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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