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參數(shù)資料
| 型號(hào)： | ST52F514 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8-BIT INTELLIGENT CONTROLLER UNIT ICU Two Timer/PWMs, ADC, I2C, SPI, SCI |
| 中文描述： | 8位重癥監(jiān)護(hù)病房智能控制單元兩個(gè)定時(shí)器/的PWM，模數(shù)轉(zhuǎn)換器，I2C，SPI和脊髓損傷 |
| 文件頁數(shù)： | 58/106頁 |
| 文件大?。?/td> | 1340K |
| 代理商： | ST52F514 |
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ST52F510/F513/F514
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Figure 8.5 Example of valid Mbfs
8.6 Output Singleton
The Decision Processor uses a particular kind of
membership function called Singleton for its output
variables. A Singleton doesn’t have a shape, like a
traditional Mbf, and is characterized by a single
point identified by the couple (X, w), where w is
calculated by the Inference Unit as described
earlier. Often, a Singleton is simply identified with
its Crisp Value X.
Figure 8.6 Output Membership Functions
8.7 Fuzzy Rules
Rules can have the following structures:
if A op B op C...........then Z
if (A op B) op (C op D op E...) ...........then Z
where
op
is one of the possible linguistic operators
(AND/OR)
In the first case the rule operators are managed
sequentially; in the second one, the priority of the
operator is fixed by the brackets.
Each rule is codified by using an instruction set, the
inference time for a rule with 4 antecedents and 1
consequent is about 3 microseconds at 20 MHz.
The Assembler Instruction Set used to manage the
Fuzzy operations is reported in the table below.
1
i-th OUTPUT
0
X
ij
X
i0
X
in
ω
i0
ω
ij
ω
in
j-th Singleton
Table 8.1 Fuzzy Instructions Set
Instruction
Description
MBF
n_mbf Ivd v rvd
Stores the Mbf
n_mbf
with the shape identified by the parameters
Ivd
,
v
and
rvd
IS
n m
Fixes the alpha value of the input n with the Mbf m
ISNOT
n m
Calculates the complementary alpha value of the input n with the Mbf m.
FZAND
Implements the Fuzzy operation AND
FZOR
Implements the Fuzzy operation OR
CON
crisp
Multiplies the crisp value with the last
ω
weight
OUT
n_out
Performs Defuzzyfication and stores the currently Fuzzy output in the register
n_out
FUZZY
Starts the computation of a sigle fuzzy variable
( )
Modify the priority in the rule evaluation
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