spm1.m

matlab中的神经网络控制系统工具箱

function [ret,x0,str,ts,xts]=spm1(t,x,u,flag);
%SPM1	is the M-file description of the SIMULINK system named SPM1.
%	The block-diagram can be displayed by typing: SPM1.
%
%	SYS=SPM1(T,X,U,FLAG) returns depending on FLAG certain
%	system values given time point, T, current state vector, X,
%	and input vector, U.
%	FLAG is used to indicate the type of output to be returned in SYS.
%
%	Setting FLAG=1 causes SPM1 to return state derivatives, FLAG=2
%	discrete states, FLAG=3 system outputs and FLAG=4 next sample
%	time. For more information and other options see SFUNC.
%
%	Calling SPM1 with a FLAG of zero:
%	[SIZES]=SPM1([],[],[],0),  returns a vector, SIZES, which
%	contains the sizes of the state vector and other parameters.
%		SIZES(1) number of states
%		SIZES(2) number of discrete states
%		SIZES(3) number of outputs
%		SIZES(4) number of inputs
%		SIZES(5) number of roots (currently unsupported)
%		SIZES(6) direct feedthrough flag
%		SIZES(7) number of sample times
%
%	For the definition of other parameters in SIZES, see SFUNC.
%	See also, TRIM, LINMOD, LINSIM, EULER, RK23, RK45, ADAMS, GEAR.

% Note: This M-file is only used for saving graphical information;
%       after the model is loaded into memory an internal model
%       representation is used.

% the system will take on the name of this mfile:
sys = mfilename;
new_system(sys)
simver(1.3)
if (0 == (nargin + nargout))
     set_param(sys,'Location',[699,76,1199,376])
     open_system(sys)
end;
set_param(sys,'BackGround',5)
set_param(sys,'algorithm',     'RK-45')
set_param(sys,'Start time',    '0.0')
set_param(sys,'Stop time',     '999999')
set_param(sys,'Min step size', '0.0001')
set_param(sys,'Max step size', '10')
set_param(sys,'Relative error','1e-3')
set_param(sys,'Return vars',   '')

add_block('built-in/Product',[sys,'/','Product'])
set_param([sys,'/','Product'],...
		'orientation',2,...
		'BackGround',3,...
		'Drop Shadow',4,...
		'inputs','3',...
		'position',[250,167,280,203])

add_block('built-in/Integrator',[sys,'/','Integrator1'])
set_param([sys,'/','Integrator1'],...
		'BackGround',3,...
		'Drop Shadow',4,...
		'position',[195,77,225,113])

add_block('built-in/Integrator',[sys,'/','Integrator2'])
set_param([sys,'/','Integrator2'],...
		'BackGround',3,...
		'Drop Shadow',4,...
		'position',[285,78,315,112])

add_block('built-in/Outport',[sys,'/','Outport'])
set_param([sys,'/','Outport'],...
		'BackGround',4,...
		'position',[395,85,415,105])

add_block('built-in/Sum',[sys,'/','Sum'])
set_param([sys,'/','Sum'],...
		'BackGround',3,...
		'Drop Shadow',4,...
		'inputs','+---',...
		'position',[140,72,160,118])

add_block('built-in/Inport',[sys,'/','Inport'])
set_param([sys,'/','Inport'],...
		'BackGround',4,...
		'position',[35,70,55,90])

add_block('built-in/Note',[sys,'/',['      .',13,'x2=x1']])
set_param([sys,'/',['      .',13,'x2=x1']],...
		'position',[255,50,260,55])

add_block('built-in/Note',[sys,'/','y=x1'])
set_param([sys,'/','y=x1'],...
		'position',[350,65,355,70])

add_block('built-in/Note',[sys,'/',['.',13,'x2']])
set_param([sys,'/',['.',13,'x2']],...
		'position',[175,50,180,55])
add_line(sys,[320,95;390,95])
add_line(sys,[230,95;280,95])
add_line(sys,[60,80;135,80])
add_line(sys,[350,95;350,150;100,150;100,100;135,100])
add_line(sys,[250,95;250,145;115,145;115,110;135,110])
add_line(sys,[350,150;350,195;285,195])
add_line(sys,[350,185;285,185])
add_line(sys,[350,175;285,175])
add_line(sys,[245,185;90,185;90,90;135,90])
add_line(sys,[165,95;190,95])

drawnow

% Return any arguments.
if (nargin | nargout)
	% Must use feval here to access system in memory
	if (nargin > 3)
		if (flag == 0)
			eval(['[ret,x0,str,ts,xts]=',sys,'(t,x,u,flag);'])
		else
			eval(['ret =', sys,'(t,x,u,flag);'])
		end
	else
		[ret,x0,str,ts,xts] = feval(sys);
	end
else
	drawnow % Flash up the model and execute load callback
end