SU980107A1 - Device for converting cartesian coordinates - Google Patents

Description

(54) DEVICE FOR TRANSFORMING DECART

COORDINAT

one

This invention relates to analog computing.

Known similar devices G11 and C23.

One of them contains two dividing units, connected by one inputs to the input buses, and the other to a generation of polar radius, quadrants connected to the outputs of dividers, an adder and a polar radius generation JQ connected to its output, which is 15) reference-integral controller. The sine and cosine of the polar angle, which are formed at the outputs of the dividing units, enter the circuit-calculation of the polar angle 5

Ci.

A disadvantage of the known device is in the big hardware costs.

The closest to the proposed technical essence is the system (), in which with the help of two division blocks and two multiplication blocks, the projections X with% and Q of the input coordinates are formed, which, after summation, form a polar radius. This device also uses the method of the ultimate function: the magnitude of the polar radius is applied to the inputs of the dividing units and uses, with, to form the specified extracts 2.

The lack of a device is the absence of a purely polar angle value, which limits the possibilities of its use.

The purpose of the invention is to enhance the functionality by obtaining the value of the polar angle.

The goal is achieved by the fact that the device for converting Cartesian coordinates contains two division blocks, the first inputs of which are the inputs of the device, Two multiplication blocks, the first input of each of them is connected to the output of the corresponding division block, and the second input is to the first input of the same block the divisions, the outputs of the multiplication units are connected to the inputs of the first adder, the output of which, being the first output of the device, is connected to the second inputs of the division units, contains the third division unit and the second adder, corresponding Suitable inputs of which are connected to WMOs da of the apparatus and to the outputs of said first and second multiplying units, the adder output being coupled to the first input of the third dividing unit, the second input of which is connected to the output of the first adder and the output of the third unit is a dividing second output device.

The drawing shows a diagram of the device.

The device contains blocks I and 2, blocks 3 and 4 multiplying, adders 5 and 6, block 7 divisions.

The device works as follows.

Voltages corresponding to the values of Cartesian coordinates X and Y are applied to the two inputs of the device.

At the outputs of blocks 3 and 4 multiplication, signals are generated

0 ,. X-cos ©

I -O R

.

4 -) –1v1 where R is the polar radius; & - polar angle.

The signal at the output of the adder 5 corresponds to the value

R X soy, + V 91I ©. The adder 6 implements the empirical dependence / 1l.

RV R (| -0.98) b1i + 0.98 {co9 "- +" s-iM &},

which has a slight methodological error (0.05%) in the first quadrant.

The output number of the dividing unit 7 is generated by a signal corresponding to the value of the polar angle ©. The present invention allows using the means of Foste, without the use of trigonometric transducers, to realize the transformation of Cartesian coordinates into polar coordinates, to construct a structure in the form of a microprocessor. This determines the technical and economic effect of using this invention.

Formula and 30 brethren

A device for generating Cartesian coordinates that contains two division blocks, the first inputs of which are the inputs of the device, two multiplication blocks, the first input of each of which is connected to the Output of the corresponding division block, and the HEAT input to the first input of the same division block, the outputs of the multiplication unit connected to the inputs of the first adder, the output of which, being the first output of the device, is connected to the second inputs of the division blocks, characterized in that, in order to extend its functionality by obtaining the value of the polar angle, the device contains the third division unit and the second adder, the corresponding inputs of which are connected to the inputs of the device and the outputs of the first and second multiplication units, the output of the second adder is connected to the first input of the third division unit, the second input of which is connected to the output of the first sum the mater, and the output of the third dividing unit is the second output of the device.

Sources of information, u) are considered in the examination

1. The patent of Germany No. 2012781, cl. G 06 G 7/22, publ. 1973.

2. Computational technique .. Sfavochnik ed. G. Husky and G. Kern. M.-L., Energia, Vol. 1, 1964, p. 588 (prototype).

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Claims (1)

Claim A device for converting Cartesian coordinates, containing two division blocks, the first inputs of which are the inputs of the device, two multiplication blocks, the first input of each of which is connected to the output of the corresponding division block, and the second input - to the first input of the same division block, the outputs of the multiplication blocks with the inputs of the first adder, the output of which, which is the first output of the device, is connected to the second inputs of the division blocks, characterized in that, in order to expand its functionality by obtaining the beginning of the polar angle, the device contains a third division unit and a second adder, the corresponding inputs of which are connected to the inputs of the device and the outputs of the first and second multiplication units, the output of the second adder is connected to the first input of the third division unit, the second input of which is connected to the output of the first adder, and the output of the third division block is the second output of the device.