CN104883253A - Lorenz type hyper-chaotic system construction method and circuit with different variable and easy ultimate boundary estimation - Google Patents

Abstract

The invention provides a Lorenz type hyper-chaos system construction method and circuit with different variables and easy ultimate boundary estimation; the method comprises the following steps: using an operational amplifier U1 and an operational amplifier U2 and a resistor and a capacitor to realize addition and integration operation; using an operational amplifier U3 and a resistor to realize anti-phase operation; using a multiplier U4 and a multiplier U5 to realize multiplication operation in a system. The operational amplifier U1 is connected with the operational amplifier U2, the operational amplifier U3 and the multiplier U5; the operational amplifier U2 is connected with the operational amplifier U3 and the multiplier U4; the operational amplifiers U1, U2 and U3 employ LF347BN; the multipliers U4 and U5 employ AD633JN. The Lorenz type hyper-chaos system construction method and circuit construction method with different variables and easy ultimate boundary estimation are designed on a base of a Lorenz type chaos system, and a simulation circuit is designed to realize the chaotic system, thus providing a novel hyper-chaotic system signal source for chaotic synchronization and control.

Description

A kind of Lorenz type hyperchaotic system construction method being beneficial to ultimate boundary estimation of different variable and circuit

Technical field

The present invention relates to a kind of chaos system and circuit, particularly a kind of different variable be beneficial to ultimate boundary estimate Lorenz type hyperchaotic system construction method and circuit.

Background technology

The control in chaos is estimated on the border of hyperchaotic system, the synchronous engineer applied aspect that waits has great importance, current, construct the method for four dimension ultra-chaos mainly on the basis of three-dimensional chaotic system, increase one dimension and form four-dimensional hyperchaotic system, but the hyperchaotic system formed is not easy to carry out ultimate boundary estimation, the feature that the hyperchaotic system that can carry out ultimate boundary estimation has is: the characteristic element of Jacobian matrix leading diagonal is all negative value, the characteristic element that the hyperchaotic system of the present invention's structure has a Jacobian matrix leading diagonal is all the feature of negative value, ultimate boundary estimation can be carried out, this is for the control of hyperchaos, synchronous etc. have important job applications prospect.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of the Lorenz type hyperchaotic system construction method being beneficial to ultimate boundary estimation and circuit of different variable:

1. the Lorenz type hyperchaotic system construction method being beneficial to ultimate boundary estimation of different variable, is characterized in that, comprise the following steps:

(1) Lorenz type chaos system i is:

$\left\{\begin{array}{c}\mathrm{dx}/\mathrm{dt}=a(y-x)\\ \mathrm{dy}/\mathrm{dt}=\mathrm{bx}-\mathrm{xz}-\mathrm{cy}\\ \mathrm{dz}/\mathrm{dt}=\mathrm{xy}-\mathrm{dz}\end{array}\right.$ a＝12,b＝23,c＝1,d＝2.1 i

In formula, x, y, z are state variable, and a, b, c, d are system parameters;

(2) a variable w reformed is built ₁:

dw ₁/dt＝-kx-rw ₁k＝5,r＝0.1 ii

W in formula ₁for state variable, k, r are system parameters;

(3) a variable w reformed is built ₂:

dw ₂/dt＝-ky-rw ₂k＝5,r＝0.1 iii

W in formula ₂for state variable, k, r are system parameters;

(4) construct a choice function iv and ii and iii formed one dimension switching variable w:

$f\left(x\right)=\left\{\begin{array}{cc}-x& x\&GreaterEqual;0\\ -y& x<0\end{array}\right.$ iv

dw/dt＝kf(x)-rw k＝5,r＝0.1 v

In formula, w is state variable, and f (x) is switching function, and k, r are system parameters;

(5) using variable w as unidimensional system variable, be added on second equation of Lorenz type chaos system i, obtain a kind of be beneficial to ultimate boundary estimate Lorenz type hyperchaotic system vi be:

$\left\{\begin{array}{c}\mathrm{dx}/\mathrm{dt}=a(y-x)\\ \mathrm{dy}/\mathrm{dt}=\mathrm{bx}-\mathrm{xz}-\mathrm{cy}+w\\ \mathrm{dz}/\mathrm{dt}=\mathrm{xy}-\mathrm{dz}\\ \mathrm{dw}/\mathrm{dt}=\mathrm{kf}\left(x\right)-\mathrm{rw}\end{array}\right.$ a＝12,b＝23,c＝1,d＝2.1,k＝5,r＝0.1 vi

In formula, x, y, z, w are state variable, and f (x) is switching function, parameter value a=12, b=23, c=1, d=2.1, k=5, r=0.1;

(6) based on the circuit of system vi structure, operational amplifier U1, operational amplifier U2 and resistance, electric capacity is utilized to realize addition and integral operation, operational amplifier U3 and resistance is utilized to realize anti-phase computing, multiplier U4 and multiplier U5 realizes the multiplying in system, operational amplifier U6 and selector U7 realizes switching function computing, described operational amplifier U1, U2, U3 and U6 adopt LF347BN, and described multiplier U4 and U5 adopts AD633JN, and described selector U7 adopts ADG409;

Described operational amplifier U1 concatenation operation amplifier U3, operational amplifier U6 and multiplier U5, described operational amplifier U2 connects multiplier U4, operational amplifier U1 and operational amplifier U3, described operational amplifier U3 concatenation operation amplifier U1, operational amplifier U2, operational amplifier U6, selector U7 and multiplier U4, described multiplier U4 concatenation operation amplifier U1, described multiplier U5 concatenation operation amplifier U2; Described operational amplifier U6 connects selector U7, described selector U7 concatenation operation amplifier U2;

1st pin of described operational amplifier U1 is connected with the 6th pin of operational amplifier U1 by resistance R2, 2nd pin of operational amplifier U1 is connected with the 1st pin of operational amplifier U1 by resistance Ry, 3rd pin of operational amplifier U1, 5th pin, 10th pin, 12nd pin ground connection, 4th pin of operational amplifier U1 meets VCC, 11st pin of operational amplifier U1 meets VEE, 6th pin of operational amplifier U1 is connected with the 7th pin of operational amplifier U1 by electric capacity Cy, 7th pin of operational amplifier U1 is connected with the 13rd pin of operational amplifier U1 by resistance Rx2, 7th pin of operational amplifier U1 connects with the 1st pin of multiplier U5, 7th pin of operational amplifier U1 is connected with the 6th pin of operational amplifier U3 by resistance R7, 7th pin of operational amplifier U1 connects and exports y, 8th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by electric capacity Cx, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U1 by resistance Ry1, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U3 by resistance R5, 8th pin of operational amplifier U1 connects with the 3rd pin of multiplier U5, 8th pin of operational amplifier U1 connects with the 2nd pin of operational amplifier U6, 8th pin of operational amplifier U1 connects and exports x, 13rd pin of operational amplifier U1 is connected with the 14th pin of operational amplifier U1 by resistance Rx, 14th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by resistance R1,

1st pin of described operational amplifier U2 is connected with the 6th pin of operational amplifier U2 by resistance R4, 2nd pin of operational amplifier U2 is connected with the 1st pin of operational amplifier U2 by resistance Rw, 3rd pin of operational amplifier U2, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U2 is connected with the 7th pin of operational amplifier U2 by electric capacity Cw, 7th pin of operational amplifier U2 is connected with the 2nd pin of operational amplifier U1 by resistance Ry4, 7th pin of operational amplifier U2 is connected with the 13rd pin of operational amplifier U3 by resistance R11, 7th pin of operational amplifier U2 connects and exports w, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by electric capacity Cz, 8th pin of operational amplifier U2 connects with the 3rd pin of multiplier U4, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U3 by resistance R9, 8th pin of operational amplifier U2 connects and exports z, 13rd pin of operational amplifier U2 is connected with the 14th pin of operational amplifier U2 by resistance Rz, 14th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by resistance R3,

1st pin of described operational amplifier U3 is connected with the 13rd pin of operational amplifier U1 by resistance Rx1, 1st pin of operational amplifier U3 connects with the 4th pin of selector U7, 1st pin of operational amplifier U3 connects with the 1st pin of multiplier U4, 2nd pin of operational amplifier U3 is connected with the 1st pin of operational amplifier U3 by resistance R6, 3rd pin of operational amplifier U3, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U3 is connected with the 7th pin of operational amplifier U3 by resistance R8, 7th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U1 by resistance Ry2, 7th pin of operational amplifier U3 connects with the 5th pin of selector U7, 8th pin of operational amplifier U3 is connected with the 9th pin of operational amplifier U3 by resistance R10, 8th pin of operational amplifier U3 is connected with the 13rd pin of operational amplifier U2 by resistance Rz2, 13rd pin of operational amplifier U3 is connected with the 14th pin of operational amplifier U3 by resistance R12, 14th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U2 by resistance Rw2,

2nd pin of described multiplier U4, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects the 2nd pin of operational amplifier U1 by resistance Ry3, and the 8th pin meets VCC;

2nd pin of described multiplier U5, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects operational amplifier U2 the 13rd pin by resistance Rz1, and the 8th pin meets VCC;

1st pin of described operational amplifier U6 is connected with the 1st pin of selector U7 by resistance R13,1st pin of operational amplifier U6 is connected with ground by resistance R13 and resistance R14,3rd pin of operational amplifier U6, the 5th pin, the 10th pin, the 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, and operational amplifier U6 the 6th pin, the 7th pin, the 8th pin, the 9th pin, the 12nd pin, the 13rd pin, the 14th pin are unsettled.

2nd pin of described selector U7 and the 14th pin rank VCC, 3rd pin of selector U7 meets VEE, 15th pin of selector U7 and the 16th pin ground connection, 8th pin of selector U7 is connected with the 2nd pin of operational amplifier U2 by resistance Rw1, and the 6th pin of selector U7, the 7th pin, the 9th pin, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin are unsettled.

2. the Lorenz type hyperchaotic system circuit being beneficial to ultimate boundary estimation of a different variable, it is characterized in that, utilize operational amplifier U1, operational amplifier U2 and resistance, electric capacity realizes addition and integral operation, operational amplifier U3 and resistance is utilized to realize anti-phase computing, multiplier U4 and multiplier U5 realizes the multiplying in system, operational amplifier U6 and selector U7 realizes switching function computing, operational amplifier U1 concatenation operation amplifier U3 and U6, operational amplifier U1 connects multiplier U4 and U5 and selector U7, described operational amplifier U1, U2, U3 and U6 adopts LF347BN, described multiplier U4 and U5 adopts AD633JN, described selector U7 adopts ADG409,

Described operational amplifier U1 concatenation operation amplifier U3, operational amplifier U6 and multiplier U5, described operational amplifier U2 connects multiplier U4, operational amplifier U1 and operational amplifier U3, described operational amplifier U3 concatenation operation amplifier U1, operational amplifier U2, operational amplifier U6, selector U7 and multiplier U4, described multiplier U4 concatenation operation amplifier U1, described multiplier U5 concatenation operation amplifier U2; Described operational amplifier U6 connects selector U7, described selector U7 concatenation operation amplifier U2;

1st pin of described operational amplifier U1 is connected with the 6th pin of operational amplifier U1 by resistance R2, 2nd pin of operational amplifier U1 is connected with the 1st pin of operational amplifier U1 by resistance Ry, 3rd pin of operational amplifier U1, 5th pin, 10th pin, 12nd pin ground connection, 4th pin of operational amplifier U1 meets VCC, 11st pin of operational amplifier U1 meets VEE, 6th pin of operational amplifier U1 is connected with the 7th pin of operational amplifier U1 by electric capacity Cy, 7th pin of operational amplifier U1 is connected with the 13rd pin of operational amplifier U1 by resistance Rx2, 7th pin of operational amplifier U1 connects with the 1st pin of multiplier U5, 7th pin of operational amplifier U1 is connected with the 6th pin of operational amplifier U3 by resistance R7, 7th pin of operational amplifier U1 connects and exports y, 8th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by electric capacity Cx, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U1 by resistance Ry1, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U3 by resistance R5, 8th pin of operational amplifier U1 connects with the 3rd pin of multiplier U5, 8th pin of operational amplifier U1 connects with the 2nd pin of operational amplifier U6, 8th pin of operational amplifier U1 connects and exports x, 13rd pin of operational amplifier U1 is connected with the 14th pin of operational amplifier U1 by resistance Rx, 14th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by resistance R1,

1st pin of described operational amplifier U2 is connected with the 6th pin of operational amplifier U2 by resistance R4, 2nd pin of operational amplifier U2 is connected with the 1st pin of operational amplifier U2 by resistance Rw, 3rd pin of operational amplifier U2, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U2 is connected with the 7th pin of operational amplifier U2 by electric capacity Cw, 7th pin of operational amplifier U2 is connected with the 2nd pin of operational amplifier U1 by resistance Ry4, 7th pin of operational amplifier U2 is connected with the 13rd pin of operational amplifier U3 by resistance R11, 7th pin of operational amplifier U2 connects and exports w, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by electric capacity Cz, 8th pin of operational amplifier U2 connects with the 3rd pin of multiplier U4, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U3 by resistance R9, 8th pin of operational amplifier U2 connects and exports z, 13rd pin of operational amplifier U2 is connected with the 14th pin of operational amplifier U2 by resistance Rz, 14th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by resistance R3,

1st pin of described operational amplifier U3 is connected with the 13rd pin of operational amplifier U1 by resistance Rx1, 1st pin of operational amplifier U3 connects with the 4th pin of selector U7, 1st pin of operational amplifier U3 connects with the 1st pin of multiplier U4, 2nd pin of operational amplifier U3 is connected with the 1st pin of operational amplifier U3 by resistance R6, 3rd pin of operational amplifier U3, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U3 is connected with the 7th pin of operational amplifier U3 by resistance R8, 7th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U1 by resistance Ry2, 7th pin of operational amplifier U3 connects with the 5th pin of selector U7, 8th pin of operational amplifier U3 is connected with the 9th pin of operational amplifier U3 by resistance R10, 8th pin of operational amplifier U3 is connected with the 13rd pin of operational amplifier U2 by resistance Rz2, 13rd pin of operational amplifier U3 is connected with the 14th pin of operational amplifier U3 by resistance R12, 14th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U2 by resistance Rw2,

2nd pin of described multiplier U4, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects the 2nd pin of operational amplifier U1 by resistance Ry3, and the 8th pin meets VCC;

2nd pin of described multiplier U5, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects operational amplifier U2 the 13rd pin by resistance Rz1, and the 8th pin meets VCC;

1st pin of described operational amplifier U6 is connected with the 1st pin of selector U7 by resistance R13,1st pin of operational amplifier U6 is connected with ground by resistance R13 and resistance R14,3rd pin of operational amplifier U6, the 5th pin, the 10th pin, the 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, and operational amplifier U6 the 6th pin, the 7th pin, the 8th pin, the 9th pin, the 12nd pin, the 13rd pin, the 14th pin are unsettled.

2nd pin of described selector U7 and the 14th pin rank VCC, 3rd pin of selector U7 meets VEE, 15th pin of selector U7 and the 16th pin ground connection, 8th pin of selector U7 is connected with the 2nd pin of operational amplifier U2 by resistance Rw1, and the 6th pin of selector U7, the 7th pin, the 9th pin, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin are unsettled.

Beneficial effect: the present invention is on the basis of Lorenz type chaos system, devise being beneficial to Lorenz type hyperchaotic system construction method that ultimate boundary estimates and designing an analog circuit and carry out realizing this chaos system of a kind of different variable, for the synchronous of chaos and control to provide new hyperchaotic system signal source.

Accompanying drawing explanation

Fig. 1 is the circuit connection structure schematic diagram of the preferred embodiment of the present invention.

Fig. 2 is the actual connection layout of circuit of multiplier U4 and operational amplifier U1.

Fig. 3 is the actual connection layout of circuit of operational amplifier U3.

Fig. 4 is the actual connection layout of circuit of multiplier U5 and operational amplifier U2.

Fig. 5 is the actual connection layout of circuit of selector U7 and operational amplifier U6.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the present invention is further described in detail, see Fig. 1-Fig. 5.

1. the Lorenz type hyperchaotic system construction method being beneficial to ultimate boundary estimation of different variable, is characterized in that, comprise the following steps:

(1) Lorenz type chaos system i is:

$\left\{\begin{array}{c}\mathrm{dx}/\mathrm{dt}=a(y-x)\\ \mathrm{dy}/\mathrm{dt}=\mathrm{bx}-\mathrm{xz}-\mathrm{cy}\\ \mathrm{dz}/\mathrm{dt}=\mathrm{xy}-\mathrm{dz}\end{array}\right.$ a＝12,b＝23,c＝1,d＝2.1 i

In formula, x, y, z are state variable, and a, b, c, d are system parameters;

(2) a variable w reformed is built ₁:

dw ₁/dt＝-kx-rw ₁k＝5,r＝0.1 ii

W in formula ₁for state variable, k, r are system parameters;

(3) a variable w reformed is built ₂:

dw ₂/dt＝-ky-rw ₂k＝5,r＝0.1 iii

W in formula ₂for state variable, k, r are system parameters;

(4) construct a choice function iv and ii and iii formed one dimension switching variable w:

$f\left(x\right)=\left\{\begin{array}{cc}-x& x\&GreaterEqual;0\\ -y& x<0\end{array}\right.$ iv

dw/dt＝kf(x)-rw k＝5,r＝0.1 v

In formula, w is state variable, and f (x) is switching function, and k, r are system parameters;

(5) using variable w as unidimensional system variable, be added on second equation of Lorenz type chaos system i, obtain a kind of be beneficial to ultimate boundary estimate Lorenz type hyperchaotic system vi be:

$\left\{\begin{array}{c}\mathrm{dx}/\mathrm{dt}=a(y-x)\\ \mathrm{dy}/\mathrm{dt}=\mathrm{bx}-\mathrm{xz}-\mathrm{cy}+w\\ \mathrm{dz}/\mathrm{dt}=\mathrm{xy}-\mathrm{dz}\\ \mathrm{dw}/\mathrm{dt}=\mathrm{kf}\left(x\right)-\mathrm{rw}\end{array}\right.$ a＝12,b＝23,c＝1,d＝2.1,k＝5,r＝0.1 vi

In formula, x, y, z, w are state variable, and f (x) is switching function, parameter value a=12, b=23, c=1, d=2.1, k=5, r=0.1;

(6) based on the circuit of system vi structure, operational amplifier U1, operational amplifier U2 and resistance, electric capacity is utilized to realize addition and integral operation, operational amplifier U3 and resistance is utilized to realize anti-phase computing, multiplier U4 and multiplier U5 realizes the multiplying in system, operational amplifier U6 and selector U7 realizes switching function computing, described operational amplifier U1, U2, U3 and U6 adopt LF347BN, and described multiplier U4 and U5 adopts AD633JN, and described selector U7 adopts ADG409;

Described operational amplifier U1 concatenation operation amplifier U3, operational amplifier U6 and multiplier U5, described operational amplifier U2 connects multiplier U4, operational amplifier U1 and operational amplifier U3, described operational amplifier U3 concatenation operation amplifier U1, operational amplifier U2, operational amplifier U6, selector U7 and multiplier U4, described multiplier U4 concatenation operation amplifier U1, described multiplier U5 concatenation operation amplifier U2; Described operational amplifier U6 connects selector U7, described selector U7 concatenation operation amplifier U2;

1st pin of described operational amplifier U1 is connected with the 6th pin of operational amplifier U1 by resistance R2, 2nd pin of operational amplifier U1 is connected with the 1st pin of operational amplifier U1 by resistance Ry, 3rd pin of operational amplifier U1, 5th pin, 10th pin, 12nd pin ground connection, 4th pin of operational amplifier U1 meets VCC, 11st pin of operational amplifier U1 meets VEE, 6th pin of operational amplifier U1 is connected with the 7th pin of operational amplifier U1 by electric capacity Cy, 7th pin of operational amplifier U1 is connected with the 13rd pin of operational amplifier U1 by resistance Rx2, 7th pin of operational amplifier U1 connects with the 1st pin of multiplier U5, 7th pin of operational amplifier U1 is connected with the 6th pin of operational amplifier U3 by resistance R7, 7th pin of operational amplifier U1 connects and exports y, 8th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by electric capacity Cx, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U1 by resistance Ry1, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U3 by resistance R5, 8th pin of operational amplifier U1 connects with the 3rd pin of multiplier U5, 8th pin of operational amplifier U1 connects with the 2nd pin of operational amplifier U6, 8th pin of operational amplifier U1 connects and exports x, 13rd pin of operational amplifier U1 is connected with the 14th pin of operational amplifier U1 by resistance Rx, 14th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by resistance R1,

1st pin of described operational amplifier U2 is connected with the 6th pin of operational amplifier U2 by resistance R4, 2nd pin of operational amplifier U2 is connected with the 1st pin of operational amplifier U2 by resistance Rw, 3rd pin of operational amplifier U2, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U2 is connected with the 7th pin of operational amplifier U2 by electric capacity Cw, 7th pin of operational amplifier U2 is connected with the 2nd pin of operational amplifier U1 by resistance Ry4, 7th pin of operational amplifier U2 is connected with the 13rd pin of operational amplifier U3 by resistance R11, 7th pin of operational amplifier U2 connects and exports w, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by electric capacity Cz, 8th pin of operational amplifier U2 connects with the 3rd pin of multiplier U4, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U3 by resistance R9, 8th pin of operational amplifier U2 connects and exports z, 13rd pin of operational amplifier U2 is connected with the 14th pin of operational amplifier U2 by resistance Rz, 14th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by resistance R3,

1st pin of described operational amplifier U3 is connected with the 13rd pin of operational amplifier U1 by resistance Rx1, 1st pin of operational amplifier U3 connects with the 4th pin of selector U7, 1st pin of operational amplifier U3 connects with the 1st pin of multiplier U4, 2nd pin of operational amplifier U3 is connected with the 1st pin of operational amplifier U3 by resistance R6, 3rd pin of operational amplifier U3, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U3 is connected with the 7th pin of operational amplifier U3 by resistance R8, 7th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U1 by resistance Ry2, 7th pin of operational amplifier U3 connects with the 5th pin of selector U7, 8th pin of operational amplifier U3 is connected with the 9th pin of operational amplifier U3 by resistance R10, 8th pin of operational amplifier U3 is connected with the 13rd pin of operational amplifier U2 by resistance Rz2, 13rd pin of operational amplifier U3 is connected with the 14th pin of operational amplifier U3 by resistance R12, 14th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U2 by resistance Rw2,

2nd pin of described multiplier U4, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects the 2nd pin of operational amplifier U1 by resistance Ry3, and the 8th pin meets VCC;

2nd pin of described multiplier U5, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects operational amplifier U2 the 13rd pin by resistance Rz1, and the 8th pin meets VCC;

1st pin of described operational amplifier U6 is connected with the 1st pin of selector U7 by resistance R13,1st pin of operational amplifier U6 is connected with ground by resistance R13 and resistance R14,3rd pin of operational amplifier U6, the 5th pin, the 10th pin, the 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, and operational amplifier U6 the 6th pin, the 7th pin, the 8th pin, the 9th pin, the 12nd pin, the 13rd pin, the 14th pin are unsettled.

2nd pin of described selector U7 and the 14th pin rank VCC, 3rd pin of selector U7 meets VEE, 15th pin of selector U7 and the 16th pin ground connection, 8th pin of selector U7 is connected with the 2nd pin of operational amplifier U2 by resistance Rw1, and the 6th pin of selector U7, the 7th pin, the 9th pin, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin are unsettled.

2. the Lorenz type hyperchaotic system circuit being beneficial to ultimate boundary estimation of a different variable, it is characterized in that, utilize operational amplifier U1, operational amplifier U2 and resistance, electric capacity realizes addition and integral operation, operational amplifier U3 and resistance is utilized to realize anti-phase computing, multiplier U4 and multiplier U5 realizes the multiplying in system, operational amplifier U6 and selector U7 realizes switching function computing, operational amplifier U1 concatenation operation amplifier U3 and U6, operational amplifier U1 connects multiplier U4 and U5 and selector U7, described operational amplifier U1, U2, U3 and U6 adopts LF347BN, described multiplier U4 and U5 adopts AD633JN, described selector U7 adopts ADG409,

Described operational amplifier U1 concatenation operation amplifier U3, operational amplifier U6 and multiplier U5, described operational amplifier U2 connects multiplier U4, operational amplifier U1 and operational amplifier U3, described operational amplifier U3 concatenation operation amplifier U1, operational amplifier U2, operational amplifier U6, selector U7 and multiplier U4, described multiplier U4 concatenation operation amplifier U1, described multiplier U5 concatenation operation amplifier U2; Described operational amplifier U6 connects selector U7, described selector U7 concatenation operation amplifier U2;

1st pin of described operational amplifier U1 is connected with the 6th pin of operational amplifier U1 by resistance R2, 2nd pin of operational amplifier U1 is connected with the 1st pin of operational amplifier U1 by resistance Ry, 3rd pin of operational amplifier U1, 5th pin, 10th pin, 12nd pin ground connection, 4th pin of operational amplifier U1 meets VCC, 11st pin of operational amplifier U1 meets VEE, 6th pin of operational amplifier U1 is connected with the 7th pin of operational amplifier U1 by electric capacity Cy, 7th pin of operational amplifier U1 is connected with the 13rd pin of operational amplifier U1 by resistance Rx2, 7th pin of operational amplifier U1 connects with the 1st pin of multiplier U5, 7th pin of operational amplifier U1 is connected with the 6th pin of operational amplifier U3 by resistance R7, 7th pin of operational amplifier U1 connects and exports y, 8th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by electric capacity Cx, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U1 by resistance Ry1, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U3 by resistance R5, 8th pin of operational amplifier U1 connects with the 3rd pin of multiplier U5, 8th pin of operational amplifier U1 connects with the 2nd pin of operational amplifier U6, 8th pin of operational amplifier U1 connects and exports x, 13rd pin of operational amplifier U1 is connected with the 14th pin of operational amplifier U1 by resistance Rx, 14th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by resistance R1,

1st pin of described operational amplifier U2 is connected with the 6th pin of operational amplifier U2 by resistance R4, 2nd pin of operational amplifier U2 is connected with the 1st pin of operational amplifier U2 by resistance Rw, 3rd pin of operational amplifier U2, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U2 is connected with the 7th pin of operational amplifier U2 by electric capacity Cw, 7th pin of operational amplifier U2 is connected with the 2nd pin of operational amplifier U1 by resistance Ry4, 7th pin of operational amplifier U2 is connected with the 13rd pin of operational amplifier U3 by resistance R11, 7th pin of operational amplifier U2 connects and exports w, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by electric capacity Cz, 8th pin of operational amplifier U2 connects with the 3rd pin of multiplier U4, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U3 by resistance R9, 8th pin of operational amplifier U2 connects and exports z, 13rd pin of operational amplifier U2 is connected with the 14th pin of operational amplifier U2 by resistance Rz, 14th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by resistance R3,

1st pin of described operational amplifier U3 is connected with the 13rd pin of operational amplifier U1 by resistance Rx1, 1st pin of operational amplifier U3 connects with the 4th pin of selector U7, 1st pin of operational amplifier U3 connects with the 1st pin of multiplier U4, 2nd pin of operational amplifier U3 is connected with the 1st pin of operational amplifier U3 by resistance R6, 3rd pin of operational amplifier U3, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U3 is connected with the 7th pin of operational amplifier U3 by resistance R8, 7th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U1 by resistance Ry2, 7th pin of operational amplifier U3 connects with the 5th pin of selector U7, 8th pin of operational amplifier U3 is connected with the 9th pin of operational amplifier U3 by resistance R10, 8th pin of operational amplifier U3 is connected with the 13rd pin of operational amplifier U2 by resistance Rz2, 13rd pin of operational amplifier U3 is connected with the 14th pin of operational amplifier U3 by resistance R12, 14th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U2 by resistance Rw2,

2nd pin of described multiplier U4, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects the 2nd pin of operational amplifier U1 by resistance Ry3, and the 8th pin meets VCC;

2nd pin of described multiplier U5, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects operational amplifier U2 the 13rd pin by resistance Rz1, and the 8th pin meets VCC;

1st pin of described operational amplifier U6 is connected with the 1st pin of selector U7 by resistance R13,1st pin of operational amplifier U6 is connected with ground by resistance R13 and resistance R14,3rd pin of operational amplifier U6, the 5th pin, the 10th pin, the 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, and operational amplifier U6 the 6th pin, the 7th pin, the 8th pin, the 9th pin, the 12nd pin, the 13rd pin, the 14th pin are unsettled.

2nd pin of described selector U7 and the 14th pin rank VCC, 3rd pin of selector U7 meets VEE, 15th pin of selector U7 and the 16th pin ground connection, 8th pin of selector U7 is connected with the 2nd pin of operational amplifier U2 by resistance Rw1, and the 6th pin of selector U7, the 7th pin, the 9th pin, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin are unsettled.

Certainly, above-mentioned explanation is not to the restriction of invention, and the present invention is also not limited only to above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also belong to protection scope of the present invention.

Claims (2)

1. the Lorenz type hyperchaotic system construction method being beneficial to ultimate boundary estimation of different variable, is characterized in that, comprise the following steps:

(1) Lorenz type chaos system i is:

$\left\{\begin{array}{c}\mathrm{dx}/\mathrm{dt}=a(y-x)\\ \mathrm{dy}/\mathrm{dt}=\mathrm{bx}-\mathrm{xz}-\mathrm{cy}\\ \mathrm{dz}/\mathrm{dt}=\mathrm{xy}-\mathrm{dz}\end{array}\right.,a=12,b=23,c=1,d=2.1---i$

In formula, x, y, z are state variable, and a, b, c, d are system parameters;

(2) a variable w reformed is built ₁:

dw ₁/dt＝-kx-rw ₁k＝5,r＝0.1 ii

W in formula ₁for state variable, k, r are system parameters;

(3) a variable w reformed is built ₂:

dw ₂/dt＝-ky-rw ₂k＝5,r＝0.1 iii

W in formula ₂for state variable, k, r are system parameters;

(4) construct a choice function iv and ii and iii formed one dimension switching variable w:

$f\left(x\right)=\left\{\begin{array}{cc}-x& x\&GreaterEqual;0\\ -y& x<0\end{array}\right.---\mathrm{iv}$

dw/dt＝kf(x)-rw k＝5,r＝0.1 v

In formula, w is state variable, and f (x) is switching function, and k, r are system parameters;

(5) using variable w as unidimensional system variable, be added on second equation of Lorenz type chaos system i, obtain a kind of be beneficial to ultimate boundary estimate Lorenz type hyperchaotic system vi be:

$\left\{\begin{array}{c}\mathrm{dx}/\mathrm{dt}=a(y-x)\\ \mathrm{dy}/\mathrm{dt}=\mathrm{bx}-\mathrm{xz}-\mathrm{cy}+w\\ \mathrm{dz}/\mathrm{dt}=\mathrm{xy}-\mathrm{dz}\\ \mathrm{dw}/\mathrm{dt}=\mathrm{kf}\left(x\right)-\mathrm{rw}\end{array}\right.,a=12,b=23,c=1,d=2.1,k=5,r=0.1---\mathrm{vi}$

In formula, x, y, z, w are state variable, and f (x) is switching function, parameter value a=12, b=23, c=1, d=2.1, k=5, r=0.1;

(6) based on the circuit of system vi structure, operational amplifier U1, operational amplifier U2 and resistance, electric capacity is utilized to realize addition and integral operation, operational amplifier U3 and resistance is utilized to realize anti-phase computing, multiplier U4 and multiplier U5 realizes the multiplying in system, operational amplifier U6 and selector U7 realizes switching function computing, described operational amplifier U1, U2, U3 and U6 adopt LF347BN, and described multiplier U4 and U5 adopts AD633JN, and described selector U7 adopts ADG409;

Described operational amplifier U1 concatenation operation amplifier U3, operational amplifier U6 and multiplier U5, described operational amplifier U2 connects multiplier U4, operational amplifier U1 and operational amplifier U3, described operational amplifier U3 concatenation operation amplifier U1, operational amplifier U2, operational amplifier U6, selector U7 and multiplier U4, described multiplier U4 concatenation operation amplifier U1, described multiplier U5 concatenation operation amplifier U2; Described operational amplifier U6 connects selector U7, described selector U7 concatenation operation amplifier U2;

1st pin of described operational amplifier U1 is connected with the 6th pin of operational amplifier U1 by resistance R2, 2nd pin of operational amplifier U1 is connected with the 1st pin of operational amplifier U1 by resistance Ry, 3rd pin of operational amplifier U1, 5th pin, 10th pin, 12nd pin ground connection, 4th pin of operational amplifier U1 meets VCC, 11st pin of operational amplifier U1 meets VEE, 6th pin of operational amplifier U1 is connected with the 7th pin of operational amplifier U1 by electric capacity Cy, 7th pin of operational amplifier U1 is connected with the 13rd pin of operational amplifier U1 by resistance Rx2, 7th pin of operational amplifier U1 connects with the 1st pin of multiplier U5, 7th pin of operational amplifier U1 is connected with the 6th pin of operational amplifier U3 by resistance R7, 7th pin of operational amplifier U1 connects and exports y, 8th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by electric capacity Cx, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U1 by resistance Ry1, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U3 by resistance R5, 8th pin of operational amplifier U1 connects with the 3rd pin of multiplier U5, 8th pin of operational amplifier U1 connects with the 2nd pin of operational amplifier U6, 8th pin of operational amplifier U1 connects and exports x, 13rd pin of operational amplifier U1 is connected with the 14th pin of operational amplifier U1 by resistance Rx, 14th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by resistance R1,

1st pin of described operational amplifier U2 is connected with the 6th pin of operational amplifier U2 by resistance R4, 2nd pin of operational amplifier U2 is connected with the 1st pin of operational amplifier U2 by resistance Rw, 3rd pin of operational amplifier U2, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U2 is connected with the 7th pin of operational amplifier U2 by electric capacity Cw, 7th pin of operational amplifier U2 is connected with the 2nd pin of operational amplifier U1 by resistance Ry4, 7th pin of operational amplifier U2 is connected with the 13rd pin of operational amplifier U3 by resistance R11, 7th pin of operational amplifier U2 connects and exports w, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by electric capacity Cz, 8th pin of operational amplifier U2 connects with the 3rd pin of multiplier U4, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U3 by resistance R9, 8th pin of operational amplifier U2 connects and exports z, 13rd pin of operational amplifier U2 is connected with the 14th pin of operational amplifier U2 by resistance Rz, 14th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by resistance R3,

1st pin of described operational amplifier U3 is connected with the 13rd pin of operational amplifier U1 by resistance Rx1, 1st pin of operational amplifier U3 connects with the 4th pin of selector U7, 1st pin of operational amplifier U3 connects with the 1st pin of multiplier U4, 2nd pin of operational amplifier U3 is connected with the 1st pin of operational amplifier U3 by resistance R6, 3rd pin of operational amplifier U3, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U3 is connected with the 7th pin of operational amplifier U3 by resistance R8, 7th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U1 by resistance Ry2, 7th pin of operational amplifier U3 connects with the 5th pin of selector U7, 8th pin of operational amplifier U3 is connected with the 9th pin of operational amplifier U3 by resistance R10, 8th pin of operational amplifier U3 is connected with the 13rd pin of operational amplifier U2 by resistance Rz2, 13rd pin of operational amplifier U3 is connected with the 14th pin of operational amplifier U3 by resistance R12, 14th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U2 by resistance Rw2,

2nd pin of described multiplier U4, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects the 2nd pin of operational amplifier U1 by resistance Ry3, and the 8th pin meets VCC;

2nd pin of described multiplier U5, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects operational amplifier U2 the 13rd pin by resistance Rz1, and the 8th pin meets VCC;

1st pin of described operational amplifier U6 is connected with the 1st pin of selector U7 by resistance R13,1st pin of operational amplifier U6 is connected with ground by resistance R13 and resistance R14,3rd pin of operational amplifier U6, the 5th pin, the 10th pin, the 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, and operational amplifier U6 the 6th pin, the 7th pin, the 8th pin, the 9th pin, the 12nd pin, the 13rd pin, the 14th pin are unsettled.

2nd pin of described selector U7 and the 14th pin rank VCC, 3rd pin of selector U7 meets VEE, 15th pin of selector U7 and the 16th pin ground connection, 8th pin of selector U7 is connected with the 2nd pin of operational amplifier U2 by resistance Rw1, and the 6th pin of selector U7, the 7th pin, the 9th pin, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin are unsettled.

2. the Lorenz type hyperchaotic system circuit being beneficial to ultimate boundary estimation of a different variable, it is characterized in that, utilize operational amplifier U1, operational amplifier U2 and resistance, electric capacity realizes addition and integral operation, operational amplifier U3 and resistance is utilized to realize anti-phase computing, multiplier U4 and multiplier U5 realizes the multiplying in system, operational amplifier U6 and selector U7 realizes switching function computing, operational amplifier U1 concatenation operation amplifier U3 and U6, operational amplifier U1 connects multiplier U4 and U5 and selector U7, described operational amplifier U1, U2, U3 and U6 adopts LF347BN, described multiplier U4 and U5 adopts AD633JN, described selector U7 adopts ADG409,

Described operational amplifier U1 concatenation operation amplifier U3, operational amplifier U6 and multiplier U5, described operational amplifier U2 connects multiplier U4, operational amplifier U1 and operational amplifier U3, described operational amplifier U3 concatenation operation amplifier U1, operational amplifier U2, operational amplifier U6, selector U7 and multiplier U4, described multiplier U4 concatenation operation amplifier U1, described multiplier U5 concatenation operation amplifier U2; Described operational amplifier U6 connects selector U7, described selector U7 concatenation operation amplifier U2;

1st pin of described operational amplifier U1 is connected with the 6th pin of operational amplifier U1 by resistance R2, 2nd pin of operational amplifier U1 is connected with the 1st pin of operational amplifier U1 by resistance Ry, 3rd pin of operational amplifier U1, 5th pin, 10th pin, 12nd pin ground connection, 4th pin of operational amplifier U1 meets VCC, 11st pin of operational amplifier U1 meets VEE, 6th pin of operational amplifier U1 is connected with the 7th pin of operational amplifier U1 by electric capacity Cy, 7th pin of operational amplifier U1 is connected with the 13rd pin of operational amplifier U1 by resistance Rx2, 7th pin of operational amplifier U1 connects with the 1st pin of multiplier U5, 7th pin of operational amplifier U1 is connected with the 6th pin of operational amplifier U3 by resistance R7, 7th pin of operational amplifier U1 connects and exports y, 8th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by electric capacity Cx, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U1 by resistance Ry1, 8th pin of operational amplifier U1 is connected with the 2nd pin of operational amplifier U3 by resistance R5, 8th pin of operational amplifier U1 connects with the 3rd pin of multiplier U5, 8th pin of operational amplifier U1 connects with the 2nd pin of operational amplifier U6, 8th pin of operational amplifier U1 connects and exports x, 13rd pin of operational amplifier U1 is connected with the 14th pin of operational amplifier U1 by resistance Rx, 14th pin of operational amplifier U1 is connected with the 9th pin of operational amplifier U1 by resistance R1,

1st pin of described operational amplifier U2 is connected with the 6th pin of operational amplifier U2 by resistance R4, 2nd pin of operational amplifier U2 is connected with the 1st pin of operational amplifier U2 by resistance Rw, 3rd pin of operational amplifier U2, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U2 is connected with the 7th pin of operational amplifier U2 by electric capacity Cw, 7th pin of operational amplifier U2 is connected with the 2nd pin of operational amplifier U1 by resistance Ry4, 7th pin of operational amplifier U2 is connected with the 13rd pin of operational amplifier U3 by resistance R11, 7th pin of operational amplifier U2 connects and exports w, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by electric capacity Cz, 8th pin of operational amplifier U2 connects with the 3rd pin of multiplier U4, 8th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U3 by resistance R9, 8th pin of operational amplifier U2 connects and exports z, 13rd pin of operational amplifier U2 is connected with the 14th pin of operational amplifier U2 by resistance Rz, 14th pin of operational amplifier U2 is connected with the 9th pin of operational amplifier U2 by resistance R3,

1st pin of described operational amplifier U3 is connected with the 13rd pin of operational amplifier U1 by resistance Rx1, 1st pin of operational amplifier U3 connects with the 4th pin of selector U7, 1st pin of operational amplifier U3 connects with the 1st pin of multiplier U4, 2nd pin of operational amplifier U3 is connected with the 1st pin of operational amplifier U3 by resistance R6, 3rd pin of operational amplifier U3, 5th pin, 10th pin, 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, 6th pin of operational amplifier U3 is connected with the 7th pin of operational amplifier U3 by resistance R8, 7th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U1 by resistance Ry2, 7th pin of operational amplifier U3 connects with the 5th pin of selector U7, 8th pin of operational amplifier U3 is connected with the 9th pin of operational amplifier U3 by resistance R10, 8th pin of operational amplifier U3 is connected with the 13rd pin of operational amplifier U2 by resistance Rz2, 13rd pin of operational amplifier U3 is connected with the 14th pin of operational amplifier U3 by resistance R12, 14th pin of operational amplifier U3 is connected with the 2nd pin of operational amplifier U2 by resistance Rw2,

2nd pin of described multiplier U4, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects the 2nd pin of operational amplifier U1 by resistance Ry3, and the 8th pin meets VCC;

2nd pin of described multiplier U5, the 4th pin, the equal ground connection of the 6th pin, the 5th pin meets VEE, and the 7th pin connects operational amplifier U2 the 13rd pin by resistance Rz1, and the 8th pin meets VCC;

1st pin of described operational amplifier U6 is connected with the 1st pin of selector U7 by resistance R13,1st pin of operational amplifier U6 is connected with ground by resistance R13 and resistance R14,3rd pin of operational amplifier U6, the 5th pin, the 10th pin, the 12nd pin ground connection, 4th pin meets VCC, 11st pin meets VEE, and operational amplifier U6 the 6th pin, the 7th pin, the 8th pin, the 9th pin, the 12nd pin, the 13rd pin, the 14th pin are unsettled.

2nd pin of described selector U7 and the 14th pin rank VCC, 3rd pin of selector U7 meets VEE, 15th pin of selector U7 and the 16th pin ground connection, 8th pin of selector U7 is connected with the 2nd pin of operational amplifier U2 by resistance Rw1, and the 6th pin of selector U7, the 7th pin, the 9th pin, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin are unsettled.