Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control
In the charge-coupled device (CCD) and micro-electro-mechanical system (MEMS) accelerometer based low-cost multi-loop optoelectronic control system (OCS), due to accelerometers’ drift and noise in low frequency, the disturbance suppression (DS) is insufficient. Previously, based on the acc...
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| Format: | Article |
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MDPI AG
2018-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/7/2153 |
| _version_ | 1811300535741972480 |
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| author | Yong Luo Yao Mao Wei Ren Yongmei Huang Chao Deng Xi Zhou |
| author_facet | Yong Luo Yao Mao Wei Ren Yongmei Huang Chao Deng Xi Zhou |
| author_sort | Yong Luo |
| collection | DOAJ |
| description | In the charge-coupled device (CCD) and micro-electro-mechanical system (MEMS) accelerometer based low-cost multi-loop optoelectronic control system (OCS), due to accelerometers’ drift and noise in low frequency, the disturbance suppression (DS) is insufficient. Previously, based on the acceleration and position dual-loop control (ADLC), researchers combined a disturbance observer (DOB) with a virtual velocity loop to make some medium-frequency DS exchange for low-frequency performance. However, it is not optimal because the classic DOB based on accelerometers’ inaccurate signals cannot observe accurate disturbance in low frequency and the velocity based on a CCD and accelerometer time-domain fusion carried the CCD’s delay, resulting in the drop of medium-frequency DS. In this paper, considering the CCD’s advantage in low frequency and the accelerometer’s strength in high frequency, we propose to fuse their signals twice with a modified complementary filter method to respectively acquire an acceleration and velocity. The new acceleration with no drift and less noise but lower bandwidth creates a new acceleration model and is only used in fusion DOB (FDOB), while the velocity with little delay is to build an additional velocity loop. Compared with the traditional DOB enhanced by the time-domain fusion velocity loop, experiments verify that the proposed multiple fusion would apparently enhance the system’s DS, especially in low and medium frequency. |
| first_indexed | 2024-04-13T06:53:39Z |
| format | Article |
| id | doaj.art-f0762b863adf4bbdbad4d615cfa5a3f6 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T06:53:39Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f0762b863adf4bbdbad4d615cfa5a3f62022-12-22T02:57:20ZengMDPI AGSensors1424-82202018-07-01187215310.3390/s18072153s18072153Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System ControlYong Luo0Yao Mao1Wei Ren2Yongmei Huang3Chao Deng4Xi Zhou5Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, ChinaInstitute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, ChinaIn the charge-coupled device (CCD) and micro-electro-mechanical system (MEMS) accelerometer based low-cost multi-loop optoelectronic control system (OCS), due to accelerometers’ drift and noise in low frequency, the disturbance suppression (DS) is insufficient. Previously, based on the acceleration and position dual-loop control (ADLC), researchers combined a disturbance observer (DOB) with a virtual velocity loop to make some medium-frequency DS exchange for low-frequency performance. However, it is not optimal because the classic DOB based on accelerometers’ inaccurate signals cannot observe accurate disturbance in low frequency and the velocity based on a CCD and accelerometer time-domain fusion carried the CCD’s delay, resulting in the drop of medium-frequency DS. In this paper, considering the CCD’s advantage in low frequency and the accelerometer’s strength in high frequency, we propose to fuse their signals twice with a modified complementary filter method to respectively acquire an acceleration and velocity. The new acceleration with no drift and less noise but lower bandwidth creates a new acceleration model and is only used in fusion DOB (FDOB), while the velocity with little delay is to build an additional velocity loop. Compared with the traditional DOB enhanced by the time-domain fusion velocity loop, experiments verify that the proposed multiple fusion would apparently enhance the system’s DS, especially in low and medium frequency.http://www.mdpi.com/1424-8220/18/7/2153multiple fusionthe optoelectronic control systemdisturbance suppressionlow-costdisturbance observervirtual velocity loop |
| spellingShingle | Yong Luo Yao Mao Wei Ren Yongmei Huang Chao Deng Xi Zhou Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control Sensors multiple fusion the optoelectronic control system disturbance suppression low-cost disturbance observer virtual velocity loop |
| title | Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control |
| title_full | Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control |
| title_fullStr | Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control |
| title_full_unstemmed | Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control |
| title_short | Multiple Fusion Based on the CCD and MEMS Accelerometer for the Low-Cost Multi-Loop Optoelectronic System Control |
| title_sort | multiple fusion based on the ccd and mems accelerometer for the low cost multi loop optoelectronic system control |
| topic | multiple fusion the optoelectronic control system disturbance suppression low-cost disturbance observer virtual velocity loop |
| url | http://www.mdpi.com/1424-8220/18/7/2153 |
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