SU760154A1 - Device for duplex communication between movable object and control station - Google Patents

Description

The invention relates to the remote control vehicles on the railway and in industry.

A device for transmitting signals to a vehicle, containing on fixed and moving objects transmitting and receiving frame circuits £ 1] is known.

The disadvantage of the device is the mutual penetration of signals from one channel to another and, as a result, poor quality control.

The closest technical essence is a device for duplex communication between a moving object and a control point, containing inductors installed on the moving object and at the control point, made in the form of identical receiving and transmitting rectangular frames shifted in the plane of their location relative to each other in the direction perpendicular to the motion, at the control point, the output of the input signal generator is connected to the receiving frame of the inductor, decoders, a comparator, the output of which is under ·

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the keys to the input of the executive unit, the inputs of the control unit are connected to the transmitting frame of the inductor d ·

The disadvantage of this device is the inability to determine the direction of movement of the object and low noise immunity.

The purpose of the invention is to improve the accuracy of the stop and the accuracy of determining the location of a moving object, as well as improving noise immunity.

This goal is achieved by introducing a stop pulse generator and, at the control point, a slow motion pulse generator, the output of which and the decoder outputs are connected to the inputs of the comparator unit, the decoder inputs connected to the receiving frame of the inductor, on the movable object the pulse generator input stop is connected to the output of the control unit, the output of the stop pulse generator is connected to the transmitter frame of the inductor, the receiver frame of the inductor located on the movable

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the object is made in the form of two identical frames, displaced relative to each other in the direction of movement, the end overlapping areas of the shifted frames of the receiving frame of the inductor of the moving object, made in the form of a U-shaped form, the planes of which are perpendicular to the plane of the location of the frames.

FIG. 1 shows a block diagram of a device located at a control point / te; in fig. 2 - the design of inductors located on a moving object.

The device contains a generator of 1 input signals, a generator of 2 stop pulses, a control unit 3 transmitting an inductor frame 4, an inductor receiving frame 5, decoders 6 ₁ ,, a comparator unit 7, a generator

8 impulses of deceleration of motion, the use of the first unit 9, receiving frames 10, 11, in front of the frame 12 and the inductor, located along the path of the object and containing the transmitting frame 13 and the receiving frame 14.

From the mobile object from the generator 1 enters the prediction frequency signal and through the receiving winding of the inductor 5 and transmitting; the winding of the inductor 4 is fed to the control unit 3. If the object is not above the inductor where it is necessary to stop it, then the control unit 3 determines the switching on of the generator 2 to move it towards the stop point. Command through the inductors 4 and 5 is transmitted to the movable object is decrypted decoders 6 i'b _{T 2.} and cherz block 7 includes movement in one direction or another.

In this case, the direction of movement is determined in the ground equipment, and not by the decoders 6, or 6 ₂ .

When an object runs into a floor inductor, over which it is necessary to stop, in block 3, the generator 2 is turned on. The signal is perceived by the decoder 6 ″ and the ba, depending on which side the object is coming from. When undershoot from the decoder 6, the block 7 receives the command of movement in the same direction, and when moving, the command of movement in the opposite direction.

Thus, the object will center itself on the selected floor inductor. In this case, the direction of its movement will be determined by block 7 on the movable object, depending on which decoder (6, or 6 ^) the signal comes from.

When the floor inductor 4 is located in the center of the movable inductor 5, a stop signal is induced in both its receiving windings, which through the decoder 6 enters the comparison unit 7, which then produces a zero signal to the executive unit 9.

Slowing the movement of an object at a stop It is possible to carry out a generator of 8 pulses, which acts only on the stop command, interrupting it. The result is a reduction in speed and impulse refinement or reverse of the object; You can also slow down an object by first imposing counter impulses and then pushing.

The inductor frames are made of insulated winding wire, and the number of turns of the receiving frame is greater than the number of turns of the transmitting frame.

At the floor inductor, the receiving and transmitting frames 13 and 14 are the same in size, but when superimposed they are shifted to each other so that

20 mutually overlap 1/4 of the frame area. More precisely, the mutual compensation of both frames is made with the help of a sound generator and an oscilloscope by

25 approach or separation of internal. nyh branches inductor framework. With

this induced in the receiving inductor EMF is reduced to a minimum.

The movable inductor is made similarly, but extended, with the aim of

³⁰ provision for the movement of inductive coupling with a floor inductor. So, moving down from one and running into Another floor inductor, you can

, to communicate with the moving object volume ³⁵ throughout its movement. ··

The proposed device is different in that the inductor, located on a moving object, has two receiving frames, and their length is slightly more than half the length of the inductor. This design allows you to receive a signal from the receiving

45 windings, define to the right or left of the center of the movable.

'is a floor inductor. The appearance of a signal simultaneously in both frames makes it possible to detect that

50 centers of inductors coincide.

However, when the device is operating, false inclusions may occur.

When * the oscillations of the gap between the frames 10, 11 and 12 induced emf can

behold simultaneously in both

receiving frames and then, when the centers of the inductors do not match. This is due to the fact that the current in one receiving frame induced EMF in another receiving frame.

40 In order to increase the noise immunity, the receiving frames of the movable inductor are shifted along the inductor so that when crossed they are (they are compensated with each other (as in the floor inductor).

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Thus, mutual compensation is obtained for the three frames - the transmitter and two receivers. In this case, the interference decreases in amplitude, but continues to have a certain effect. Its influence can be reduced if the longitudinal branches of the framework remain unchanged, and the end parts in the center are raised above the movable inductor in the opposite direction from the floor inductor.

Claims (2)

Claim 1. Device for duplex communication between a moving object and a control point, containing inductors in a movable object and a control point, made in the form of identical receiving and transmitting rectangular frames, shifted in the plane of their location relative to each other in the direction perpendicular to the movement, at the control point the output of the input signal generator is connected to the receiving frame of the inductor, decoders, unit craw-. The output of which is connected to the input of the actuating unit, the inputs of the control unit are connected to the transmitter frame of the inductor, from lich and with it, which, in order to improve the stopping accuracy of the moving object, the generator of idlers and at the control point, a pulse deceleration pulse generator, the output of which and the outputs of the decoders are connected to the inputs of the comparator, the inputs of the decoder 5 tori are connected to the receiving frame of the inductor, on a moving object the input of the stop pulse generator is dinene output control unit, the output of the stop pulse generator Connected to the transmitting frame of the inductor. 2. The device according to claim 1, which is based on the fact that, in order to improve the accuracy of determining the location of a moving object, the receiving frame of the inductor, located on a movable object, is made in the form of two identical frames, shifted relative to each other in the direction of motion. 20 3. The device according to claim 1, 2, distinguished by the fact that, in order to improve noise immunity, the overlapped overlapping parts of the shifted frames of the receiving frame and the slide of the movable object are made in the form of a U-shaped Forsch, the planes of which are perpendicular to the plane of the frames. Information sources, 30 taken into account in the examination 1. USSR author's certificate "296341, cl. H 01 4 5/00, 1967. 2. USSR author's certificate No. 307416, cl. 6 08 P 19/12, 1971 35 (prototype). ν-ΙΖ_ / Fig * 1 ! 760154