Pub Date : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679638
Bo Liang, Gang Wang, Xiaoying Liang, Chuanhong Zeng, Yufeng Xiao
In nuclear measurement, radiation area reconstruction is a hot topic. To reconstruct a radiation environment, we proposed an information fusion method based on images from a gamma camera and an RGB-D (Red Green Blue-Depth) camera. First, on a mobile base, the reconstruction platform is presented to integrate gamma imaging with RGB-D information. Secondly, the dense point cloud map of the environment is formatted with VSLAM (Visual Simultaneous Localization and Mapping) based on an RGB-D camera. Thirdly, from the gamma camera images, the radioactive contour feature is extracted to localize the source right ahead cameras, and the radiation area point cloud is obtained using the relative position of the two cameras. Lastly, the whole radiation environment map is generated with point cloud fusion, and the source position is estimated with the minimum bounding box. To validate the efficiency of this method, a laboratory room with one 152Eu source is reconstructed under above fusion platform. In the experiments, three feature objects are selected, and their size are calculated based on the cloud point. Also, in two scenes with the same size in released literature, the sources are localized. Although there exist some errors, comparisons show that this method performs well and keeps at low deviation level.
在核测量中，辐射面积重建是一个热点问题。为了重建辐射环境，提出了一种基于伽玛相机和RGB-D(红绿蓝深)相机图像的信息融合方法。首先，在移动平台上建立了伽马成像与RGB-D信息融合的重建平台;其次，采用基于RGB-D相机的VSLAM (Visual Simultaneous Localization and Mapping)技术对环境密集点云图进行格式化;第三，从伽玛相机图像中提取辐射轮廓特征，定位正前方相机的辐射源，利用两台相机的相对位置得到辐射区域点云;最后，利用点云融合生成整个辐射环境图，并利用最小边界框估计辐射源位置。为了验证该方法的有效性，在上述聚变平台下重建了一个152Eu源的实验室房间。在实验中，选择三个特征对象，并根据云点计算其大小。同时，在已发布文献中两个相同大小的场景中，来源都是本地化的。虽然存在一定的误差，但对比表明，该方法具有较好的性能，并保持在较低的偏差水平上。
{"title":"Radiation Scene Reconstruction Based on Image Fusion from Gamma Camera and RGB-D Camera","authors":"Bo Liang, Gang Wang, Xiaoying Liang, Chuanhong Zeng, Yufeng Xiao","doi":"10.1109/ICEMI52946.2021.9679638","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679638","url":null,"abstract":"In nuclear measurement, radiation area reconstruction is a hot topic. To reconstruct a radiation environment, we proposed an information fusion method based on images from a gamma camera and an RGB-D (Red Green Blue-Depth) camera. First, on a mobile base, the reconstruction platform is presented to integrate gamma imaging with RGB-D information. Secondly, the dense point cloud map of the environment is formatted with VSLAM (Visual Simultaneous Localization and Mapping) based on an RGB-D camera. Thirdly, from the gamma camera images, the radioactive contour feature is extracted to localize the source right ahead cameras, and the radiation area point cloud is obtained using the relative position of the two cameras. Lastly, the whole radiation environment map is generated with point cloud fusion, and the source position is estimated with the minimum bounding box. To validate the efficiency of this method, a laboratory room with one 152Eu source is reconstructed under above fusion platform. In the experiments, three feature objects are selected, and their size are calculated based on the cloud point. Also, in two scenes with the same size in released literature, the sources are localized. Although there exist some errors, comparisons show that this method performs well and keeps at low deviation level.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121765231","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679568
Ran Tao, Gang Xiang, Y. Luo, Kun Tian, Hui Li, Zhaolei Wang
Traditional rocket control computing platform use hardware redundancy more ways to promote the reliability, the same hardware redundancy of common cause failure, unable to cope with complex environment against the shortcomings, is proposed based on heterogeneous architecture arrows control platform, by using SOPC, FPGA and DSP three core components to build a new generation of control computing platform, has high reliability, strong adaptability to environment, etc. With SOPC as the core, the heterogeneous platform completes data transmission through high-speed serial transmission, supports dynamic logical reconstruction, and utilizes dynamic reconstruction technology to realize self-recovery under abnormal state. In this paper, the platform architecture, data transmission and synchronization methods, dynamic reconstruction strategy and control methods are described in detail. Finally, the correctness of the platform design is verified by experiments and simulations.
{"title":"Design and Implementation of Dynamic Reconfiguration Based on Heterogeneous Arrow Control Platform","authors":"Ran Tao, Gang Xiang, Y. Luo, Kun Tian, Hui Li, Zhaolei Wang","doi":"10.1109/ICEMI52946.2021.9679568","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679568","url":null,"abstract":"Traditional rocket control computing platform use hardware redundancy more ways to promote the reliability, the same hardware redundancy of common cause failure, unable to cope with complex environment against the shortcomings, is proposed based on heterogeneous architecture arrows control platform, by using SOPC, FPGA and DSP three core components to build a new generation of control computing platform, has high reliability, strong adaptability to environment, etc. With SOPC as the core, the heterogeneous platform completes data transmission through high-speed serial transmission, supports dynamic logical reconstruction, and utilizes dynamic reconstruction technology to realize self-recovery under abnormal state. In this paper, the platform architecture, data transmission and synchronization methods, dynamic reconstruction strategy and control methods are described in detail. Finally, the correctness of the platform design is verified by experiments and simulations.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123515258","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679511
Wanyu Yan, Houjun Wang, Yixi Liao
With the continuous improvement of ADC resolution, the implementation of existing ADC Standard Test methods becomes more and more difficult. The traditional test method based on sinusoidal fitting has high test accuracy, but the test time is long, which limits its application in practical test. The sine wave fitting algorithm based on maximum likelihood estimation (ML) can better take into account the test accuracy and test efficiency, and has a good application prospect. This paper mainly studies the optimization of ADC test algorithm based on maximum likelihood estimation. Firstly, the ADC conversion level is obtained by the parameter spectrum estimation method. When the conversion level is used as a known parameter, the accuracy and speed of the algorithm are guaranteed. The initial frequency is estimated by the frequency estimation method, and the signal parameters and noise standard deviation are estimated by the three parameter sinusoidal fitting method. After improvement, only one data acquisition is needed to test the dynamic and static parameters of high-speed and high-precision analog-to-digital converter, such as INL, SINAD, ENOB, etc. Through simulation and test, the test time is shortened on the premise of ensuring the test accuracy, and the test efficiency of high-speed and high-precision ADC is improved. It has great practical value.
{"title":"ADC Parameter Test Based on Improved Maximum Likelihood Estimation","authors":"Wanyu Yan, Houjun Wang, Yixi Liao","doi":"10.1109/ICEMI52946.2021.9679511","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679511","url":null,"abstract":"With the continuous improvement of ADC resolution, the implementation of existing ADC Standard Test methods becomes more and more difficult. The traditional test method based on sinusoidal fitting has high test accuracy, but the test time is long, which limits its application in practical test. The sine wave fitting algorithm based on maximum likelihood estimation (ML) can better take into account the test accuracy and test efficiency, and has a good application prospect. This paper mainly studies the optimization of ADC test algorithm based on maximum likelihood estimation. Firstly, the ADC conversion level is obtained by the parameter spectrum estimation method. When the conversion level is used as a known parameter, the accuracy and speed of the algorithm are guaranteed. The initial frequency is estimated by the frequency estimation method, and the signal parameters and noise standard deviation are estimated by the three parameter sinusoidal fitting method. After improvement, only one data acquisition is needed to test the dynamic and static parameters of high-speed and high-precision analog-to-digital converter, such as INL, SINAD, ENOB, etc. Through simulation and test, the test time is shortened on the premise of ensuring the test accuracy, and the test efficiency of high-speed and high-precision ADC is improved. It has great practical value.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120978874","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}
With the rapid development of computer technology, simulation experiments are more and more widely used in various engineering projects, especially for projects that require very strict experimental environments. Using simulation results to guide actual projects can save costs and make the system design more perfect, avoid unnecessary losses. This paper proposes to use a finite element analysis software to simulate the temperature field changes of the aircraft cabin and the center of gravity deployment system. According to the temperature data, using virtual instrument technology to design temperature monitoring system. Finally, the function of the system was verified by experiments and the design requirements were met.
{"title":"Development of Temperature Monitoring System Based on Finite Element Analysis for Barycenter Adjustment of Trial Airplane","authors":"Debao Wei, Mingchuang Liu, Zhenji Yin, Yuanshen Hong, Hengkun Yang, Liyan Qiao","doi":"10.1109/ICEMI52946.2021.9679547","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679547","url":null,"abstract":"With the rapid development of computer technology, simulation experiments are more and more widely used in various engineering projects, especially for projects that require very strict experimental environments. Using simulation results to guide actual projects can save costs and make the system design more perfect, avoid unnecessary losses. This paper proposes to use a finite element analysis software to simulate the temperature field changes of the aircraft cabin and the center of gravity deployment system. According to the temperature data, using virtual instrument technology to design temperature monitoring system. Finally, the function of the system was verified by experiments and the design requirements were met.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122432280","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679567
Ludan Li, Hongna Jiang, Yaosheng Hu
In order to promote the application of fiber Bragg grating (FBG) sensor in strain measurement of flight test field, ground verification tests were carried out, and the effects of the packaging structure and the bonding technology of the sensor were analyzed. FBG has the advantages of small size and light weight in flight test applications, but the optical fiber is easily damaged, so it is necessary to use a stainless steel substrate to encapsulate the optical fiber and then use AB glue to bond to the test substrate. In this paper, FBG and resistance strain gages are compared to verify the feasibility of strain measurement. The results show that the response trend of the FBG sensor is consistent with the resistance strain gauge, but there is a large strain loss in the bonding layer of the FBG after packaging. Further establish a strain transfer model for simulation analysis, and quantitatively calculate measurement error. It is proposed that under the premise of meeting the feasibility of flight test process, the thickness of the cement layer should be small enough and the elastic modulus should be large enough, which can effectively improve the accuracy of FBG strain measurement.
{"title":"Feasibility Study of Fiber Bragg Grating Sensor for Strain Measurement in Flight Test","authors":"Ludan Li, Hongna Jiang, Yaosheng Hu","doi":"10.1109/ICEMI52946.2021.9679567","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679567","url":null,"abstract":"In order to promote the application of fiber Bragg grating (FBG) sensor in strain measurement of flight test field, ground verification tests were carried out, and the effects of the packaging structure and the bonding technology of the sensor were analyzed. FBG has the advantages of small size and light weight in flight test applications, but the optical fiber is easily damaged, so it is necessary to use a stainless steel substrate to encapsulate the optical fiber and then use AB glue to bond to the test substrate. In this paper, FBG and resistance strain gages are compared to verify the feasibility of strain measurement. The results show that the response trend of the FBG sensor is consistent with the resistance strain gauge, but there is a large strain loss in the bonding layer of the FBG after packaging. Further establish a strain transfer model for simulation analysis, and quantitatively calculate measurement error. It is proposed that under the premise of meeting the feasibility of flight test process, the thickness of the cement layer should be small enough and the elastic modulus should be large enough, which can effectively improve the accuracy of FBG strain measurement.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124033803","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679540
Xiang Gao, Xiaoling Lai, Shenghua Zhai, Xuan Wang, Shu Zhu, Qi Zhu, G. Zhou, Jian Wang
Commercial microprocessor systems in LEO orbit space applications are usually designed for embedded electronic systems, which are executed the complex tasks, such as controller or source management. Hence, there is a clear need for more sophisticated methods for testing and estimating the performances and reliabilities of microprocessor. This paper presents a set of Hardware/Software co-design hardening design techniques to realize the systemic reliability design related to the high security commercial microprocessors with Hercules ARM Cortex-R4F, which are applied to the inter-satellite communication missions. Then these techniques are used to fulfill the radiation harden design from sensitive units of signal event effect for system layer, as well as the latch-up current self-monitoring and recovery design. Ultimately, through the construction of the heavy ion irradiation test evaluation system, the microprocessor being tested is immune to heavy ion induced by single event latch-up and single failure interrupts show a very low response. Thus, the device depended on the radiation harden design is defined as a high reliability and security candidate for digital process system in space applications.
{"title":"Soft Errors Reliability Validation and Verification Induced by Signal Event Effect on a High Security Commercial Microprocessor","authors":"Xiang Gao, Xiaoling Lai, Shenghua Zhai, Xuan Wang, Shu Zhu, Qi Zhu, G. Zhou, Jian Wang","doi":"10.1109/ICEMI52946.2021.9679540","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679540","url":null,"abstract":"Commercial microprocessor systems in LEO orbit space applications are usually designed for embedded electronic systems, which are executed the complex tasks, such as controller or source management. Hence, there is a clear need for more sophisticated methods for testing and estimating the performances and reliabilities of microprocessor. This paper presents a set of Hardware/Software co-design hardening design techniques to realize the systemic reliability design related to the high security commercial microprocessors with Hercules ARM Cortex-R4F, which are applied to the inter-satellite communication missions. Then these techniques are used to fulfill the radiation harden design from sensitive units of signal event effect for system layer, as well as the latch-up current self-monitoring and recovery design. Ultimately, through the construction of the heavy ion irradiation test evaluation system, the microprocessor being tested is immune to heavy ion induced by single event latch-up and single failure interrupts show a very low response. Thus, the device depended on the radiation harden design is defined as a high reliability and security candidate for digital process system in space applications.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123015448","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679534
Jiangmiao Zhu, X. Zheng, Kejia Zhao, Zhaotong Wan
In this paper, the grounded coplanar waveguide (GCPW) used for the calibration of high-bandwidth digital real-time oscilloscope probes is studied. First, according to the characteristic impedance formula of the grounded coplanar waveguide without via holes, the sizes of GCPW are adjusted so that the characteristic impedance is 50Ω. Moreover, the influence of via holes on the bandwidth of the GCPW is studied through simulation software, at the same time the sizes and position of the via holes are changed to increase the GCPW bandwidth to 50 GHz. The sizes of the GCPW with via holes is further changed to eliminate the effect of via holes on the characteristic impedance. The GCPW is made by machining on the basis of the simulation data, then its S-parameters are measured by the vector network analyzer. In the frequency range of DC-50GHz, S21 is greater than −2.2dB and S11 is less than −14dB. The research results show that the bandwidth and transmission characteristics of the GCPW can meet the requirements of calibration.
{"title":"Research on Grounded Coplanar Waveguide for Calibration of Digital Real-time Oscilloscope Probe","authors":"Jiangmiao Zhu, X. Zheng, Kejia Zhao, Zhaotong Wan","doi":"10.1109/ICEMI52946.2021.9679534","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679534","url":null,"abstract":"In this paper, the grounded coplanar waveguide (GCPW) used for the calibration of high-bandwidth digital real-time oscilloscope probes is studied. First, according to the characteristic impedance formula of the grounded coplanar waveguide without via holes, the sizes of GCPW are adjusted so that the characteristic impedance is 50Ω. Moreover, the influence of via holes on the bandwidth of the GCPW is studied through simulation software, at the same time the sizes and position of the via holes are changed to increase the GCPW bandwidth to 50 GHz. The sizes of the GCPW with via holes is further changed to eliminate the effect of via holes on the characteristic impedance. The GCPW is made by machining on the basis of the simulation data, then its S-parameters are measured by the vector network analyzer. In the frequency range of DC-50GHz, S21 is greater than −2.2dB and S11 is less than −14dB. The research results show that the bandwidth and transmission characteristics of the GCPW can meet the requirements of calibration.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117080036","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679615
Muhang Li, Junning Cui, Ran Tang
Stem cell therapy is a strategic and prospective scientific issue in the international arena. It is of great significance for heart failure, neurodegenerative diseases and many other serious diseases that lack of effective treatments. Large-scale, high-quality, safe and stable stem cell culture technology is a technical bottleneck that restricts the promotion of stem cell therapy. Three-dimensional (3D) culture technology and instruments can significantly improve the production efficiency of stem cells culturing, ensure the production quality, and enhance the therapeutic effects, therefore serves as a foundation for the development of cell therapy filed. In this review, we summarized the working principle of contemporary mainstream 3D stem cell culture instruments as well as their advantages and disadvantages. The future development trend of stem cell culture instrumentation is predicted. Recommendations are proposed for the selection of culturing instruments in stem cell clinical application, and research and development of new technology and instruments in the future.
{"title":"From 2D To 3D, Advances of Technology and Instrumentation for Stem Cell Culture in Vitro","authors":"Muhang Li, Junning Cui, Ran Tang","doi":"10.1109/ICEMI52946.2021.9679615","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679615","url":null,"abstract":"Stem cell therapy is a strategic and prospective scientific issue in the international arena. It is of great significance for heart failure, neurodegenerative diseases and many other serious diseases that lack of effective treatments. Large-scale, high-quality, safe and stable stem cell culture technology is a technical bottleneck that restricts the promotion of stem cell therapy. Three-dimensional (3D) culture technology and instruments can significantly improve the production efficiency of stem cells culturing, ensure the production quality, and enhance the therapeutic effects, therefore serves as a foundation for the development of cell therapy filed. In this review, we summarized the working principle of contemporary mainstream 3D stem cell culture instruments as well as their advantages and disadvantages. The future development trend of stem cell culture instrumentation is predicted. Recommendations are proposed for the selection of culturing instruments in stem cell clinical application, and research and development of new technology and instruments in the future.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115457321","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679608
Yuxuan Chen, Ben Wang, Yujun Zhong, Qiongwei Li, Yi Jin
Environment sensing is one of the most challenging problem in robot sensing. Among the sensing systems, stereo camera systems provide dense information and usually is less expensive for environment sensing. Based on this, a monocular stereo system for robot environment sensing is proposed. The system combines a saccade mirror with an industrial camera and captures images of environment when the mirror rotates. With the prior of relative posture of cameras corresponding to each image, the stereo images can be easily rectified and the depth information of surroundings is estimated. The estimation accuracy is validated by experiments on small resin model and real-life indoor scene.
{"title":"A Mirror-based Compact Monocular Depth Estimation System for Environment Sensing","authors":"Yuxuan Chen, Ben Wang, Yujun Zhong, Qiongwei Li, Yi Jin","doi":"10.1109/ICEMI52946.2021.9679608","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679608","url":null,"abstract":"Environment sensing is one of the most challenging problem in robot sensing. Among the sensing systems, stereo camera systems provide dense information and usually is less expensive for environment sensing. Based on this, a monocular stereo system for robot environment sensing is proposed. The system combines a saccade mirror with an industrial camera and captures images of environment when the mirror rotates. With the prior of relative posture of cameras corresponding to each image, the stereo images can be easily rectified and the depth information of surroundings is estimated. The estimation accuracy is validated by experiments on small resin model and real-life indoor scene.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128704370","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679524
Xin-peng Wang, Tao Dong, Yabin Men, Dongliang Zhang, Xing-min Li
In order to solve the problem that the existing XBT/XCTD probe is susceptible to the sea surface meteorologic and hydrologic environment during the measurement process, and the contact between the enamelled wire and the hull under the interaction of wind and current leads to the abnormal data, this paper proposes the design idea of the main control unit of the hydrographic profile element measurement buoy based on wireless communication. The buoy can hold a XBT or XCTD. Under the control of the main control unit, the buoy can release probe, data acquisition and coding, and then transmit the measurement results to the shipboard receiver in wireless communication by using the data transmission radio. The data processing software can obtain and display the measurement results in real time. After the hardware scheme is put forward, the software flow of the system is designed. At the same time, the mechanism analysis of hardware and communication problems is carried out. The optimized test results show that: The buoy can release the XBT/XCTD under the control of main control unit, hydrologic profile measurement data can be transmitted to the main control unit, the real-time data can be received by shipboard receiver. The buoy has characteristics of high launching success rate and good practicability, providing technical basis for measuring Marine hydrologic parameters in different sea condition, and has important application value.
{"title":"Design of the Main Control Unit of Marine Hydrologic Profile Measuring Buoy Based on Wireless Communication","authors":"Xin-peng Wang, Tao Dong, Yabin Men, Dongliang Zhang, Xing-min Li","doi":"10.1109/ICEMI52946.2021.9679524","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679524","url":null,"abstract":"In order to solve the problem that the existing XBT/XCTD probe is susceptible to the sea surface meteorologic and hydrologic environment during the measurement process, and the contact between the enamelled wire and the hull under the interaction of wind and current leads to the abnormal data, this paper proposes the design idea of the main control unit of the hydrographic profile element measurement buoy based on wireless communication. The buoy can hold a XBT or XCTD. Under the control of the main control unit, the buoy can release probe, data acquisition and coding, and then transmit the measurement results to the shipboard receiver in wireless communication by using the data transmission radio. The data processing software can obtain and display the measurement results in real time. After the hardware scheme is put forward, the software flow of the system is designed. At the same time, the mechanism analysis of hardware and communication problems is carried out. The optimized test results show that: The buoy can release the XBT/XCTD under the control of main control unit, hydrologic profile measurement data can be transmitted to the main control unit, the real-time data can be received by shipboard receiver. The buoy has characteristics of high launching success rate and good practicability, providing technical basis for measuring Marine hydrologic parameters in different sea condition, and has important application value.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126749267","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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