我对实现模糊逻辑比较陌生。
使用jfuzzylite和来自android传感器的输入（Z轴加速度和从手机gps计算的速度），我想输出驱动程序的行为。
java代码如下;
public void fuzzyMethod(double carspeed, double acceleration){
Engine engine = new Engine();
engine.setName("DriverClassifier");
/*Speed input value
Speed range set between 0 and 95km/hr
Three terms - slow, normal, fast
*/
InputVariable speed = new InputVariable();
speed.setEnabled(true);
speed.setName("SPEED");
speed.setRange(0.000,95.000);
speed.addTerm(new Triangle("SLOW",0.000,25.000,50.000 ));
speed.addTerm(new Triangle("NORMAL",40.000,52.500,65.000));
speed.addTerm(new Triangle("FAST", 55.000, 75.000,95.000));
engine.addInputVariable(speed);
/*
Accelerometer values in z-axis direction - left to right
*/
InputVariable zaxis = new InputVariable();
zaxis.setEnabled(true);
zaxis.setName("ZAXISACCELERATION");
zaxis.setRange(-4.500,4.500);
//Deceleration
zaxis.addTerm(new Triangle("HARDDECELERATION",1.500,3.00,4.500 ));
zaxis.addTerm(new Triangle("DECELERATION",0.500,1.5,2.5));
//Calm/Neutral
zaxis.addTerm(new Triangle("NEUTRAL",-0.5,0,0.5));
//Acceleration
zaxis.addTerm(new Triangle("ACCELERATION",-0.500,-1.250,-2.000));
zaxis.addTerm(new Triangle("HARDACCELERATION",-1.500,-3.000,-4.500));
engine.addInputVariable(zaxis);
OutputVariable drivingStyle = new OutputVariable();
drivingStyle.setName("DRIVINGSTYLE");
//drivingStyle.setDefuzzifier(new Centroid(200));
drivingStyle.addTerm(new Triangle("CALM",0,0.5,1));
drivingStyle.addTerm(new Triangle("NORMAL",1,1.5,2));
drivingStyle.addTerm(new Triangle("AGGRESSIVE",2, 2.5, 3));
engine.addOutputVariable(drivingStyle);
//Set Rules
RuleBlock ruleBlock = new RuleBlock();
//SLOW SPEED
ruleBlock.addRule(Rule.parse("if (SPEED is SLOW) and (ZAXISACCELERATION is HARDDECELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is SLOW) and (ZAXISACCELERATION is DECELERATION) then DRIVINGSTYLE is NORMAL", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is SLOW) and (ZAXISACCELERATION is NEUTRAL) then DRIVINGSTYLE is NORMAL", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is SLOW) and (ZAXISACCELERATION is ACCELERATION) then DRIVINGSTYLE is NORMAL", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is SLOW) and (ZAXISACCELERATION is HARDACCELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
//NORMAL SPEED
ruleBlock.addRule(Rule.parse("if (SPEED is NORMAL) and (ZAXISACCELERATION is HARDDECELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is NORMAL) and (ZAXISACCELERATION is DECELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is NORMAL) and (ZAXISACCELERATION is NEUTRAL) then DRIVINGSTYLE is NORMAL", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is NORMAL) and (ZAXISACCELERATION is ACCELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is NORMAL) and (ZAXISACCELERATION is HARDACCELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
//TOO FAST
ruleBlock.addRule(Rule.parse("if (SPEED is FAST) and (ZAXISACCELERATION is HARDDECELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is FAST) and (ZAXISACCELERATION is DECELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is FAST) and (ZAXISACCELERATION is NEUTRAL) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is FAST) and (ZAXISACCELERATION is ACCELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
ruleBlock.addRule(Rule.parse("if (SPEED is FAST) and (ZAXISACCELERATION is HARDACCELERATION) then DRIVINGSTYLE is AGGRESSIVE", engine));
engine.addRuleBlock(ruleBlock);
speed.setInputValue(carspeed);
zaxis.setInputValue(acceleration);
//engine.configure("", "Minimum","", "Maximum", "Centroid");
engine.configure("Minimum","Maximum","","","Centroid");
//ruleBlock.setConjunction(new Minimum());
//ruleBlock.setDisjunction(new Maximum());
//ruleBlock.setActivation(new Minimum());
engine.process();
Log.d("fuzzy",drivingStyle.getOutputValue()+ " ");
//FuzzyLite.logger().info(Op.str(drivingStyle.getOutputValue()));
}
有人可以指导我为实现所需的输出需要做些什么吗？目前，我的输出是D /模糊：NaN。
输入变量基于我在驾驶时获得的值 - 因此定义的范围。
以下是FLL制作;
Engine: Driver Classification
InputVariable: Speed
enabled: true
range: 0.000 95.000
term: Slow Triangle 0.000 25.000 50.000
term: Normal Triangle 40.000 52.500 65.000
term: Fast Triangle 55.000 75.500 95.000
InputVariable: Acceleration
enabled: true
range: -4.500 4.500
term: HardDeceleration Triangle 1.500 3.000 4.500
term: Deceleration Triangle 0.500 1.500 2.500
term: Neutral Triangle -0.500 0.000 0.500
term: Acceleration Triangle -2.000 -1.250 -0.500
term: HardDeceleration Triangle -4.500 -3.000 -1.500
OutputVariable: DrivingStyle
enabled: true
range: 0.000 1.000
accumulation: none
defuzzifier: WeightedSum
default: nan
lock-valid: false
lock-range: false
term: Calm Triangle 0.000 0.250 0.500
term: Normal Triangle 0.250 0.500 0.750
term: Aggressive Triangle 0.500 0.750 1.000
RuleBlock:
enabled: true
conjunction: Minimum
disjunction: Maximum
activation: Minimum
rule: if Speed is Slow and Acceleration is HardDeceleration then DrivingStyle is Aggressive
rule: if Speed is Slow and Acceleration is Deceleration then DrivingStyle is Calm
rule: if Speed is Slow and Acceleration is Neutral then DrivingStyle is Calm
rule: if Speed is Slow and Acceleration is Acceleration then DrivingStyle is Calm
rule: if Speed is Slow and Acceleration is HardDeceleration then DrivingStyle is Aggressive
rule: if Speed is Normal and Acceleration is HardDeceleration then DrivingStyle is Aggressive
rule: if Speed is Normal and Acceleration is Deceleration then DrivingStyle is Normal
rule: if Speed is Normal and Acceleration is Neutral then DrivingStyle is Calm
rule: if Speed is Normal and Acceleration is Acceleration then DrivingStyle is Normal
rule: if Speed is Normal and Acceleration is HardDeceleration then DrivingStyle is Aggressive
rule: if Speed is Fast and Acceleration is HardDeceleration then DrivingStyle is Aggressive
rule: if Speed is Fast and Acceleration is Deceleration then DrivingStyle is Aggressive
rule: if Speed is Fast and Acceleration is Neutral then DrivingStyle is Aggressive
rule: if Speed is Fast and Acceleration is Acceleration then DrivingStyle is Aggressive
rule: if Speed is Fast and Acceleration is HardDeceleration then DrivingStyle is Aggressive
提前致谢！
此致 史蒂文法鲁吉亚