SU537369A1 - Device for determining the position of an object - Google Patents

Description

one

The device relates to the field of automation and computer technology and can be used in various fields of industry for the purpose of automatic measurement, regulation and control.

Devices are known for the initial installation of sensors and transducers containing a mechanical differential, a servo drive, an initial code sensor.

These devices do not have great accuracy.

The closest technical solution to this is a device that allows you to more accurately set the position of the transducer to the initial position — a code. This positioning device contains a transducer position — od, as well as a pulse distributor whose output is connected to the angle-code converter input, the motor shaft of which is connected to the converter shaft, the initial code sensor and the code converter, comparison units, trigger, reverse control units. rotation speed and engine shutdown.

The device has such disadvantages as the complexity of the kinematics, which is manifested in the presence of a mechanical differential, which must be installed in the immediate vicinity of the transducer angle-code, as well as the presence of a servo motor with

control system of the type of tracking system. In addition, the known device is inertial, has a relatively low reliability and dynamic errors and takes quite a long time to install in the initial position.

The purpose of the invention is to increase the speed and reliability of the device. For this purpose, a reverse code formation unit, a memory unit and an adder are entered into the device, a converter output is a code connected to the first input of the adder and directly to the second input through serially connected return code generation unit and a memory unit. The current value of the direct code enters the adder, in which its addition with some constant value occurs. This constant value is formed when adjusting the position of the converter at the beginning of its operation — the code as follows. The initial value of the converter code enters the code reference unit or, in a particular case, into the code generation unit, then by the control signal

The record is stored in a memory block (e.g., a register with static memory) and stored there until the next converter setting. It is also possible to manually enter this constant value in the memory block. The output of the memory unit is connected to the inlet of the adder. Thus, on the adder, the addition of two codes occurs: the current value of the direct code coming from the position converter - the code, and the additional code of a constant value stored in the memory block. This additional code is formed from the reversed code by adding the "- | - b to the low-order bit of the adder. Thus, on the output of the adder, we obtain the value of the coordinate of the position of the object under control in a given code.

The drawing shows a block diagram of a device for determining the position of an object.

The device comprises a position-to-code converter, a reverse code generation unit 2, a memory block 3, an adder 4. The output of the adder is the output of the device.

The use of this scheme favorably distinguishes the proposed device for the initial installation of the converter position - the code from the specified prototype, It is inertia-free, has high accuracy, reliability, speed and simple design.

Claims (1)

Invention Formula A device for determining the position of an object, including a position-code transducer, characterized in that, in order to increase the speed and reliability of the device, a reverse code formation unit, a memory unit and an adder, the transducer output position-code are entered into it. connected to the first input of the adder directly and to the second input through a serially connected feedback code block and a memory block.