Principles of Information Science Chapter 8 Information execution Control Theory
Principles of Information Science Chapter 8 Information Execution Control Theory
81 Fundamentals of Control Theory N. Wiener: Control theory in engineering, whether it is Concerned with Man, animal or machine, can only be regarded as a part of the theory of information. I(G) Controller I(O,E) F(S() Object
§1 Fundamentals of Control Theory Controller Object N. Wiener: Control theory in engineering, whether it is Concerned with Man, animal or machine, can only be regarded as a part of the theory of information. I(O,E) F(S(I)) I(G)
82.1 Description of Controlled Object Object Description: The states, The ways N tI tM P(11)….P(14) XM T (41)…P(44)
s1 §2.1 Description of Controlled Object Object Description: The states, The Ways s1 s2 s4 s3 P(11) … P(14) … … P(41) … P(44) s1 … sN t1 . . tM . T x1 xM yN y1
82.2 Description of Goal and Effect The initial condition. s of the controlled object and the final condition, g, are two states of the object in the state space of control problem. The path connecting all the states from s to g is one the possible solutions for the control problem. In ann dimensional space, the states and the control effect can be described as {s1,∴,SN},g={g1 g 2=(gn 12
§2.2 Description of Goal and Effect s g The initial condition, s, of the controlled object and the final condition, g, are two states of the object in the state space of control problem. The path connecting all the states from s to g is one the possible solutions for the control problem. In an N dimensional space, the states and the control effect can be described as s={s1 , …, sN}, g={g1 , …, gN} = [ (gn – g’n ) ] 2 __ n 2 1/2 ' n g
83 The Mechanism of Control Mechanism of Control: from Information to Action Strategy Information Execution Action Object
§3 The Mechanism of Control Mechanism of Control: from Information to Action Strategy Execution Object Information Action