Fuzzy electronics is an
electronic
Electronic may refer to:
*Electronics, the science of how to control electric energy in semiconductor
* ''Electronics'' (magazine), a defunct American trade journal
*Electronic storage, the storage of data using an electronic device
*Electronic co ...
technology that uses
fuzzy logic
Fuzzy logic is a form of many-valued logic in which the truth value of variables may be any real number between 0 and 1. It is employed to handle the concept of partial truth, where the truth value may range between completely true and completely ...
, instead of the two-state
Boolean logic
In mathematics and mathematical logic, Boolean algebra is a branch of algebra. It differs from elementary algebra in two ways. First, the values of the variable (mathematics), variables are the truth values ''true'' and ''false'', usually denote ...
more commonly used in
digital electronics
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics and analog signals.
Digital electronic circuits are usual ...
. Fuzzy electronics is fuzzy logic implemented on dedicated hardware. This is to be compared with fuzzy logic implemented in software running on a conventional processor. Fuzzy electronics has a wide range of applications, including
control system
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops. It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial c ...
s and
artificial intelligence
Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...
.
History
The first fuzzy electronic circuit was built by Takeshi Yamakawa ''et al.'' in 1980 using discrete bipolar transistors. The first industrial fuzzy application was in a cement kiln in Denmark in 1982. The first
VLSI
Very large-scale integration (VLSI) is the process of creating an integrated circuit (IC) by combining millions or billions of MOS transistors onto a single chip. VLSI began in the 1970s when MOS integrated circuit (Metal Oxide Semiconductor) c ...
fuzzy electronics was by Masaki Togai and Hiroyuki Watanabe in 1984. In 1987, Yamakawa built the first analog fuzzy controller. The first digital fuzzy processors came in 1988 by Togai (Russo, pp. 2-6).
In the early 1990s, the first fuzzy logic chips were presented to the public. Two companies which are Omron and NEC have announced the development of dedicated fuzzy
electronic hardware
Electronic hardware consists of interconnected electronic components which perform analog or logic operations on received and locally stored information to produce as output or store resulting new information or to provide control for output actu ...
in the year 1991. Two years later, the japanese Omron Cooperation has shown a working fuzzy chip during a technical fair.
See also
*
Defuzzification
Defuzzification is the process of producing a quantifiable result in crisp logic, given fuzzy sets and corresponding membership degrees. It is the process that maps a fuzzy set to a crisp set. It is typically needed in fuzzy control systems. The ...
*
Fuzzy set
In mathematics, fuzzy sets (a.k.a. uncertain sets) are sets whose elements have degrees of membership. Fuzzy sets were introduced independently by Lotfi A. Zadeh in 1965 as an extension of the classical notion of set.
At the same time, defined a ...
*
Fuzzy set operations
Fuzzy set operations are a generalization of crisp set operations for fuzzy sets. There is in fact more than one possible generalization. The most widely used operations are called ''standard fuzzy set operations''; they comprise: fuzzy complem ...
References
Bibliography
* Ahmad M. Ibrahim, ''Introduction to Applied Fuzzy Electronics'', .
* Abraham Kandel, Gideon Langholz (eds), ''Fuzzy Hardware: Architectures and Applications'', Springer Science & Business Media, 2012 .
**Marco Russo, "Fuzzy hardware research from historical point of view", ''op. cit.'' chapt. 1.
Further reading
* Yamakawa, T.; Inoue, T.; Ueno, F.; Shirai, Y., "Implementation of Fuzzy Logic hardware systems-Three fundamental arithmetic circuits", ''Transactions of the Institute of Electronics and Communications Engineers'', vol. 63, 1980, pp. 720-721.
* Togai, M.; Watanabe, H.
"A VLSI implementation of a fuzzy inference engine: towards an expert system on a chip" ''Information Sciences'', vol. 38, iss. 2, April 1986, pp. 147-163
External links
Applications of Fuzzy logic in electronics
Fuzzy logic
Digital electronics
Electronic engineering
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