| Development of single-chip fuzzy controller based on FFSI in binary |
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| 作者姓名： | 张吉礼 欧进萍 孙德兴 |
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| 作者单位： | School of Municipal and Environmental Engineering，Harbin Institute of Technology，Harbin 150090，China，School of the Civil Engineering，Harbin Institute of Technology，Harbin 150090，China，School of Municipal and Environmental Engineering，Harbin Institute of Technology，Harbin 150090，China |
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| 基金项目： | Sponsored by the National Natural Science Foundation of China(Grant No. 59908001)，Multidiscipline Scientific Research Foundation of Harbin Institute of Technology(Grant No. HIT. MD200030) |
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| 摘 要： | Length and concise structure of fuzzy logic reasoning program and its real-time reasoning characteristic have their effect on the performance of a digital single-chip fuzzy controller. The control effect of a digital fuzzy controller based on looking up fuzzy control responding table is only relative to the table and not relative to the fuzzy control rules in the practical control process. Aiming at above problem and having combined fuzzy log-ic reasoning with digital operational characteristics of a single-chip microcomputer, functioning-fuzzy-subset inference (FFSI) in binary, in which triangle membership functions of error and error-in-change are all represented in binary and singleton membership functions of control variable is binary too, has been introduced. The circuit principle plans of a single-chip fuzzy controller have been introduced for development of its hardware, and the primary program structure, fuzzy logic reasoning subroutine, serial communication subroutine with PC and reliability de
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Development of single-chip fuzzy controller based on FFSI in binary |
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| ZHANG Ji_li.Development of single-chip fuzzy controller based on FFSI in binary[J].Journal of Harbin Institute of Technology,2003,10(3). |
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| Authors: | ZHANG Ji_li |
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| Affiliation: | 1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
2. School of the Civil Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | Length and concise structure of fuzzy logic reasoning program and its real-time reasoning characteristic have their effect on the performance of a digital single-chip fuzzy controller. The control effect of a digital fuzzy controller based on looking up fuzzy control responding table is only relative to the table and not relative to the fuzzy control rules in the practical control process. Aiming at above problem and having combined fuzzy log-ic reasoning with digital operational characteristics of a single-chip microcomputer, functioning-fuzzy-subset inference (FFSI) in binary, in which triangle membership functions of error and error-in-change are all represented in binary and singleton membership functions of control variable is binary too, has been introduced. The circuit principle plans of a single-chip fuzzy controller have been introduced for development of its hardware, and the primary program structure, fuzzy logic reasoning subroutine, serial communication subroutine with PC and reliability design of the fuzzy controller are all discussed in detail. The control of indoor temperature by a fuzzy controller has been conducted using a testing-room thermodynamic system. Research results show that the FFSI in binary can exercise a concise fuzzy control in a single-chip fuzzy controller, and the fuzzy controller is therefore reliable and possesses a high performance-price ratio. |
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| Keywords: | functioning-fuzzy-subset inference single-chip fuzzy controller testing-room thermodynamic system indoor temperature experiment |
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