Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859125
Wei Gan, Yuanlong Li, Conghao Li, Pukang Ou, Zhuangzhuang Du
The reduced visibility caused by smog often causes serious traffic accidents, and even brings a large number of casualties and incalculable economic losses. With the development of science and technology, haze visibility detection methods have become a research hotspot in the field of image processing and computer vision. Due to the low accuracy, poor generalization ability and long time consumption of traditional image recognition methods, this paper uses deep learning theoretical knowledge to establish a convolutional neural network model, process and identify smog images, and select test set data to verify the model and detect the level of air visibility.
{"title":"Air Visibility Detection Based on Convolutional Neural Networks","authors":"Wei Gan, Yuanlong Li, Conghao Li, Pukang Ou, Zhuangzhuang Du","doi":"10.1109/ICMSP55950.2022.9859125","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859125","url":null,"abstract":"The reduced visibility caused by smog often causes serious traffic accidents, and even brings a large number of casualties and incalculable economic losses. With the development of science and technology, haze visibility detection methods have become a research hotspot in the field of image processing and computer vision. Due to the low accuracy, poor generalization ability and long time consumption of traditional image recognition methods, this paper uses deep learning theoretical knowledge to establish a convolutional neural network model, process and identify smog images, and select test set data to verify the model and detect the level of air visibility.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"56 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":"121548740","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/ICMSP55950.2022.9859169
Hong Li, Tao Feng, Chuanzi Xu, Yi Chen, Jiandi Yang, Qing Luo, Cong Chen
Air conditioning energy consumption accounts for more than half of the energy consumption of office and living buildings. The analysis of the correlation between air conditioning load and ambient temperature is the main basis for the study of air conditioning load scheduling strategies. This paper proposes a relationship model between air conditioning load and environmental temperature based on support vector machine (SVM). Firstly, the ambient temperature and air conditioning load data were standardized, and the normalized data were regressed by support vector machine to obtain the optimal relationship curve. The results of relational regression were de-standardized. At the same time, the temperature was divided into a range of 0.1 degrees Celsius, and the average load of air conditioning in each temperature range was calculated. Comparing the optimal relationship curve with the ambient temperatures-average air conditioning load data, the coefficient of determination is 0.94. The results show that the model presented in this paper can obtain a higher precision air conditioning load and ambient temperature relationship model.
{"title":"Modeling the Relationship Between Air Conditioning Load and Temperature Based on Machine Learning","authors":"Hong Li, Tao Feng, Chuanzi Xu, Yi Chen, Jiandi Yang, Qing Luo, Cong Chen","doi":"10.1109/ICMSP55950.2022.9859169","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859169","url":null,"abstract":"Air conditioning energy consumption accounts for more than half of the energy consumption of office and living buildings. The analysis of the correlation between air conditioning load and ambient temperature is the main basis for the study of air conditioning load scheduling strategies. This paper proposes a relationship model between air conditioning load and environmental temperature based on support vector machine (SVM). Firstly, the ambient temperature and air conditioning load data were standardized, and the normalized data were regressed by support vector machine to obtain the optimal relationship curve. The results of relational regression were de-standardized. At the same time, the temperature was divided into a range of 0.1 degrees Celsius, and the average load of air conditioning in each temperature range was calculated. Comparing the optimal relationship curve with the ambient temperatures-average air conditioning load data, the coefficient of determination is 0.94. The results show that the model presented in this paper can obtain a higher precision air conditioning load and ambient temperature relationship model.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"239 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":"121149059","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/ICMSP55950.2022.9859207
Wei Yu, Cui-yun Gao, Yang Zhao, Qingshan Liu
In order to prevent COVID-19 effectively, non-contact body temperature measurement and human identification are required in public places, but face recognition based on visible light cannot meet the requirements. Therefore, this paper proposes a thermal imaging face recognition method based on temperature block feature extraction. Histogram equalization and median filter are used to preprocess the face image, and Sobel operator is used for face detection; Six dimensional features including temperature mean, standard deviation and adjacent difference are extracted from each temperature block in the average poolinged temperature matrix, and classified by max-correlation-coefficient method. The experimental results show that the recognition rate of this method is 6.1% higher than that of PCA method with the temperature block size of $boldsymbol{2times 2}$. When using the same hardware to execute the program, if the two recognition rates are very close, the average test time of the proposed method is 22.2% less than the one of deep learning models such as Alexnet. Furthermore, the proposed method has strong robustness for small training sample set. For example, the recognition rate of single training sample model can reach 0.7, while in the deep learning model, except Mobilenet can reach 0.6, all of the others are less than 0.4.
{"title":"Infrared Thermal Imaging Face Recognition Method Based on Temperature Block Feature","authors":"Wei Yu, Cui-yun Gao, Yang Zhao, Qingshan Liu","doi":"10.1109/ICMSP55950.2022.9859207","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859207","url":null,"abstract":"In order to prevent COVID-19 effectively, non-contact body temperature measurement and human identification are required in public places, but face recognition based on visible light cannot meet the requirements. Therefore, this paper proposes a thermal imaging face recognition method based on temperature block feature extraction. Histogram equalization and median filter are used to preprocess the face image, and Sobel operator is used for face detection; Six dimensional features including temperature mean, standard deviation and adjacent difference are extracted from each temperature block in the average poolinged temperature matrix, and classified by max-correlation-coefficient method. The experimental results show that the recognition rate of this method is 6.1% higher than that of PCA method with the temperature block size of $boldsymbol{2times 2}$. When using the same hardware to execute the program, if the two recognition rates are very close, the average test time of the proposed method is 22.2% less than the one of deep learning models such as Alexnet. Furthermore, the proposed method has strong robustness for small training sample set. For example, the recognition rate of single training sample model can reach 0.7, while in the deep learning model, except Mobilenet can reach 0.6, all of the others are less than 0.4.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"75 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":"115310525","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/ICMSP55950.2022.9859158
Jian-gang Lu, Feng Liu, Yingna Guo
Aiming at a multi-channel data acquisition and transmission system based on FPGA, the design scheme, functional circuit and logic design method of the system are introduced in detail. The system uses FPGA as the control core to control TLC2543 analog-to-digital converter and complete the circulation acquisition of 11-channel analog data. The transmission end uses Ethernet chip RTL8201 to communicate with the upper computer, which can monitor the data changes of each channel. The correctness of each function module is verified by software simulation. The design can meet the requirements of multi-channel signal acquisition and transmission.
{"title":"Design of multi-channel data acquisition and transmission system","authors":"Jian-gang Lu, Feng Liu, Yingna Guo","doi":"10.1109/ICMSP55950.2022.9859158","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859158","url":null,"abstract":"Aiming at a multi-channel data acquisition and transmission system based on FPGA, the design scheme, functional circuit and logic design method of the system are introduced in detail. The system uses FPGA as the control core to control TLC2543 analog-to-digital converter and complete the circulation acquisition of 11-channel analog data. The transmission end uses Ethernet chip RTL8201 to communicate with the upper computer, which can monitor the data changes of each channel. The correctness of each function module is verified by software simulation. The design can meet the requirements of multi-channel signal acquisition and transmission.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"22 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":"121038637","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/ICMSP55950.2022.9858946
Yu Ding, Weiwei Qiu
With the development of energy transformation, the ever-increasing scale of new energy power generation has put forward higher requirements on the flexibility level of the power system. This paper analyzes the application scenarios of low-carbon business in smart parks, the collaborative optimization operation method of source, network, load and storage, and the information interaction requirements of low-carbon business. This paper proposes a communication model and network architecture with full coverage of airspace, terminals, and services that adapt to the geographical characteristics and business needs of smart parks, and provide network support for the research on key technologies of multi-modal heterogeneous fusion, as well as network management and security technologies in smart parks, so that it can meet the differentiated communication needs of smart energy and low-carbon businesses.
{"title":"Research on the communication model and network architecture of smart parks in low-carbon operation scenarios","authors":"Yu Ding, Weiwei Qiu","doi":"10.1109/ICMSP55950.2022.9858946","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9858946","url":null,"abstract":"With the development of energy transformation, the ever-increasing scale of new energy power generation has put forward higher requirements on the flexibility level of the power system. This paper analyzes the application scenarios of low-carbon business in smart parks, the collaborative optimization operation method of source, network, load and storage, and the information interaction requirements of low-carbon business. This paper proposes a communication model and network architecture with full coverage of airspace, terminals, and services that adapt to the geographical characteristics and business needs of smart parks, and provide network support for the research on key technologies of multi-modal heterogeneous fusion, as well as network management and security technologies in smart parks, so that it can meet the differentiated communication needs of smart energy and low-carbon businesses.","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":"122649619","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/ICMSP55950.2022.9858949
Ruibo Fan, Mingli Jing, Tengfei Chen, Wanchun Liu
The principal component pursuit (PCP) method has an excellent performance in foreground/background separation, but this method is also acknowledged to have some drawbacks: 1) the poor robustness; 2) the choice of balancing parameters is a tricky matter. To address these problems, we propose a new low-rank and sparse decomposition model based on the nuclear norm and Laplacian scale mixture. This model uses the Laplacian scale mixture to approximate the sparse term to improve the robustness of PCP and reduce the difficulty of adjusting parameters. Experimental results show that our approach is more effective than the PCP algorithm.
{"title":"A Novel Low-rank and Sparse Decomposition Algorithm Based on Laplacian Distribution","authors":"Ruibo Fan, Mingli Jing, Tengfei Chen, Wanchun Liu","doi":"10.1109/ICMSP55950.2022.9858949","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9858949","url":null,"abstract":"The principal component pursuit (PCP) method has an excellent performance in foreground/background separation, but this method is also acknowledged to have some drawbacks: 1) the poor robustness; 2) the choice of balancing parameters is a tricky matter. To address these problems, we propose a new low-rank and sparse decomposition model based on the nuclear norm and Laplacian scale mixture. This model uses the Laplacian scale mixture to approximate the sparse term to improve the robustness of PCP and reduce the difficulty of adjusting parameters. Experimental results show that our approach is more effective than the PCP algorithm.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"409 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":"122786951","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/ICMSP55950.2022.9859024
Jiaxing Wang, Dengchao Feng, Wanjun Li, Jia Li
In diffusion-based molecular communication (MC), information transmit is governed by diffusion through a fluid medium. The transmission distance is limited by the attenuation process of the diffusion. To extend the transmission range, the relaying is used in the molecular communications recently. The decode-and-forward (DF) strategy is decode the received information then re-encode it to send which can reduce the accumulation of noise. In this paper, the state-of-the-art DF relaying is comprehensively surveyed. Considering the urgent situation to deploying the hardware testbed, based on the corresponding theoretical model, this article introduces a hardware testbed that is built to validate the superiority of the relay channels, where the DF strategy is adopted and the molecular concentration is served as the information carrier. Relevant results show that the DF relay channel can significantly improve the performance of diffusion based MC than the direct transmission channel
{"title":"Decode-and-Forward Relay in Diffusion-based Molecular Communication Systems: Theory and Hardware Testbed","authors":"Jiaxing Wang, Dengchao Feng, Wanjun Li, Jia Li","doi":"10.1109/ICMSP55950.2022.9859024","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859024","url":null,"abstract":"In diffusion-based molecular communication (MC), information transmit is governed by diffusion through a fluid medium. The transmission distance is limited by the attenuation process of the diffusion. To extend the transmission range, the relaying is used in the molecular communications recently. The decode-and-forward (DF) strategy is decode the received information then re-encode it to send which can reduce the accumulation of noise. In this paper, the state-of-the-art DF relaying is comprehensively surveyed. Considering the urgent situation to deploying the hardware testbed, based on the corresponding theoretical model, this article introduces a hardware testbed that is built to validate the superiority of the relay channels, where the DF strategy is adopted and the molecular concentration is served as the information carrier. Relevant results show that the DF relay channel can significantly improve the performance of diffusion based MC than the direct transmission channel","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"4 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":"127582964","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/ICMSP55950.2022.9858944
Jianfeng Gao, Bin Hao, Bingang Guo, Binjian Ai
To study the diffusion behavior and the impact of the accident after the leakage of submarine naphtha pipeline in the Hangzhou Bay. The result shows that the diffusion of naphtha in seawater includes three stages by conducting the researches of three different influencing factors, which are leakage apertures, the running pressure of pipeline and velocity of the sea surface for the diffusion behavior of naphtha in seawater. The reached time and the horizontal diffusion distance will decrease with the increase of the leakage aperture and the running pressure of the pipe, but will increase with the increase of velocity of the sea surface when the naphtha reaches the sea surface. Finally, the relevant predictive model is obtained by the dimensionless fitting method, which can provide theoretical support for ensure safe operation of the submarine pipelines in the Hangzhou Bay.
{"title":"Numerical simulation on the Naphtha Diffusion with the Leakage of Submarine Pipeline in Hangzhou Bay","authors":"Jianfeng Gao, Bin Hao, Bingang Guo, Binjian Ai","doi":"10.1109/ICMSP55950.2022.9858944","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9858944","url":null,"abstract":"To study the diffusion behavior and the impact of the accident after the leakage of submarine naphtha pipeline in the Hangzhou Bay. The result shows that the diffusion of naphtha in seawater includes three stages by conducting the researches of three different influencing factors, which are leakage apertures, the running pressure of pipeline and velocity of the sea surface for the diffusion behavior of naphtha in seawater. The reached time and the horizontal diffusion distance will decrease with the increase of the leakage aperture and the running pressure of the pipe, but will increase with the increase of velocity of the sea surface when the naphtha reaches the sea surface. Finally, the relevant predictive model is obtained by the dimensionless fitting method, which can provide theoretical support for ensure safe operation of the submarine pipelines in the Hangzhou Bay.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"2006 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":"127661227","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/ICMSP55950.2022.9858945
Dengchao Feng, Jiaxing Wang, Junfeng Wen, Yao Wang
Low altitude safety corridor is not only an important infrastructure construction in China, but also the focus of low altitude strategic competition in the world. UAS is an important part of the development of low altitude safety corridor industry. With the gradual opening of low altitude airspace, the application fields of UAS are greatly expanded. In this paper, the theoretical system of low altitude safety corridor is briefly described. The technical design route of the development of the low altitude safety corridor is introduced. The multi-heterogeneous data acquisition of low altitude airspace and ground environment is used to to realize the accurate sensing and data storage of ground and aerial environment in low altitude airspace. Geographic information system, big data analysis and artificial intelligence are used to achieve accurate analysis of the collected multi-heterogeneous data. Digital twins is used to realize the simulation of low altitude operation and maintenance mechanism, so as to generate intelligent plan, and to build a command and dispatch map. Finally, the integration strategy of low altitude safety corridor and UAS application is explored, including the technological innovation of the combination of low altitude safety corridor operation and UAS application, such as the security strategy in low altitude operation area, the overall operation concept of ground and aerial environment integration, and the relevant laws and regulations.
{"title":"Research on Low Altitude Safety Corridor and UAS Application","authors":"Dengchao Feng, Jiaxing Wang, Junfeng Wen, Yao Wang","doi":"10.1109/ICMSP55950.2022.9858945","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9858945","url":null,"abstract":"Low altitude safety corridor is not only an important infrastructure construction in China, but also the focus of low altitude strategic competition in the world. UAS is an important part of the development of low altitude safety corridor industry. With the gradual opening of low altitude airspace, the application fields of UAS are greatly expanded. In this paper, the theoretical system of low altitude safety corridor is briefly described. The technical design route of the development of the low altitude safety corridor is introduced. The multi-heterogeneous data acquisition of low altitude airspace and ground environment is used to to realize the accurate sensing and data storage of ground and aerial environment in low altitude airspace. Geographic information system, big data analysis and artificial intelligence are used to achieve accurate analysis of the collected multi-heterogeneous data. Digital twins is used to realize the simulation of low altitude operation and maintenance mechanism, so as to generate intelligent plan, and to build a command and dispatch map. Finally, the integration strategy of low altitude safety corridor and UAS application is explored, including the technological innovation of the combination of low altitude safety corridor operation and UAS application, such as the security strategy in low altitude operation area, the overall operation concept of ground and aerial environment integration, and the relevant laws and regulations.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"64 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":"127749294","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/ICMSP55950.2022.9859079
Yongchao Liu, Bei He
BJT is called bipolar junction transistor, also known as transistor. In the design, we have no distortion, top distortion, bottom distortion, bidirectional distortion, and crossover distortion analog output for the input of 20mv, 1kHz sine wave signal. For no distortion, top distortion and bottom distortion, we can achieve different distortion waveforms by adjusting the static operating point of the bipolar common emitter amplifier circuit; for bidirectional distortion, increase the gain of the amplifier circuit to make the output The waveform with bidirectional distortion occurs; for crossover distortion, the push-pull amplifier circuit is controlled by the bias of the diode and the switch to realize the waveform with crossover distortion and eliminate the waveform of crossover distortion. The general idea of the system is to send a command request to the msp430 through the LCD screen, control the relay through the output of the msp430, and then control the signal output to generate waveforms with no distortion, top distortion, bottom distortion, bidirectional distortion, and crossover distortion. Finally, the data output is sampled through the msp430, and the sampled signal is transmitted to the host computer for the calculation of the total harmonic distortion. Finally, the host computer transmits it to the msp430, and the msp430 will pass the band-pass filter. The degree value is transmitted to the LCD screen for display.
{"title":"BJT Performance Test Device","authors":"Yongchao Liu, Bei He","doi":"10.1109/ICMSP55950.2022.9859079","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859079","url":null,"abstract":"BJT is called bipolar junction transistor, also known as transistor. In the design, we have no distortion, top distortion, bottom distortion, bidirectional distortion, and crossover distortion analog output for the input of 20mv, 1kHz sine wave signal. For no distortion, top distortion and bottom distortion, we can achieve different distortion waveforms by adjusting the static operating point of the bipolar common emitter amplifier circuit; for bidirectional distortion, increase the gain of the amplifier circuit to make the output The waveform with bidirectional distortion occurs; for crossover distortion, the push-pull amplifier circuit is controlled by the bias of the diode and the switch to realize the waveform with crossover distortion and eliminate the waveform of crossover distortion. The general idea of the system is to send a command request to the msp430 through the LCD screen, control the relay through the output of the msp430, and then control the signal output to generate waveforms with no distortion, top distortion, bottom distortion, bidirectional distortion, and crossover distortion. Finally, the data output is sampled through the msp430, and the sampled signal is transmitted to the host computer for the calculation of the total harmonic distortion. Finally, the host computer transmits it to the msp430, and the msp430 will pass the band-pass filter. The degree value is transmitted to the LCD screen for display.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"16 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":"133443677","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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