SU1618689A1 - Pickup for checking position of objects - Google Patents

Abstract

The invention relates to sensors for monitoring the position of moving objects and can be used to monitor the position of moving large objects, such as mine wagons, skips, railway cars, auto dump trucks, etc. The purpose of the invention is to increase credibility. In the initial state, a signal is induced in the receiving antenna 11, in the form of a repeating signal from generator 4, which is fed to the information input of the D-flip-flop 9, while at its synchronizing input there is a signal through the optocoupler 7 and the driver 8 pulses. D-flip-flop 9 generates a signal to the executive body. When the vehicle enters the readout area, the receiving antenna 11 is shielded, and the D-flip-flop 9 is tilted. 2 Il. P (L 10 oo o 00 co

Description

The invention relates to sensors for monitoring the position of moving objects and can be used to monitor the position of moving large objects, such as mines;: trolleys, skips, railway cars, dump trucks, etc.

The purpose of the invention is to increase credibility.

Fig. 1 shows a functional diagram of a sensor for monitoring the position of objects; in fig. 2 - time diagrams of the sensor,

The sensor for monitoring the position of objects contains a mains transformer 1 whose primary winding is connected to the network, and one output winding through diode 2 is connected to the middle output of the transmitting antenna. Its 3 inputs are connected to the output of generator 4. Another output winding of the supply transformer is connected through a resistor 5 and a 6 s diode by the entrance

(FIG. 2a) on the diode 6, the current is leaking-. A diode 6 is triggered through a resistor 5, energizes the LED of the optic 7, the transistor of the optocoupler 7 opens and a synchronizing pulse is formed at the output of the imaging unit 8 (Fig. 2 g) arriving at the synchronizing current of the D-flip-flop 9, the D-flip-flop 9 tilts and releases em signal (Fig, 2 d) to turn on the executive body, such as a relay. When passing between object antennas from electrically conductive material (mine car, automatic self-propeller, railway carriage), the object shields receiving antenna 11 and at the output of amplifier 10 the rectangular pulse disappears, D-flip-flop 9 returns to its original state,

0 executive authority included

(Fig. 2 d) After the object leaves the receiving antenna shielding area. 11. D-flip-flop 9 is activated and issues a signal to activate the executive

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the optocoupler 7, the output of which is connected 25 body (Fig. 2 d), to the input of the imaging unit 8 pulses. The output of the imaging unit 8 is connected to the synchronization input of the D-flip-flop 9, the information input of which is connected to the output of the amplifier 10, the inputs of which are connected to the receiving antenna 11. The generator unit 4, which is a multivibrator, is made on transistors.

The pulse driver unit 8 contains a trigger, the direct output of which through a parallel circuit consisting of parallel-connected resistors and a diode 2 is connected to the input. R trigger and with the first output of the capacitor, the second output of which is connected to the input S of the trigger.

The sensor for monitoring the position of moving objects operates as follows.

In the receiving antenna 11, a signal is induced, in the form of a repeating voltage in the transmitting antenna 3 (Fig. 2 b) and fed to the amplifier 10, at the output of which a pulse is formed (Fig 2 in) | which is fed to the information input of the D-flip-flop 9, With the same positive half-wave

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Claims (1)

Formula of A control sensor that contains a switch connected to the output of a coil connected with o from the output windings of the formatter, to which one a connecting diode and pulse rampter are connected, differing in the purpose of enhancing accessibility. D-trigger outputs of which are connected by another output of the second transformer with a diode-connected output terminals of the subcontractor to a pulse input. D-trigger input of which is connected to the receiving antenna of the output antenna connected to one other terminal of the power winding body (Fig. 2 d), Invention Formula An object position monitoring sensor containing a transmitting antenna connected to the output of a pulse generator connected to one output of one of the output windings of a supply transformer, one of the other of which is connected to a series-connected diode and resistor, pulse shaper, receiving antenna, characterized in that in order to increase credibility, it is equipped. D-trigger, optocoupler, input terminals of which are connected between the other output of the second winding of the supply transformer and in series. switched on a diode and a resistor, and the output pins are connected via a pulse shaper to a D-flip-flop clock input, whose information input is connected via an amplifier to a receiving antenna, the transmitting antenna being connected to another pin of the first output winding of the power transformer . -f- Hfr-T- ---- “and p p pp p l at L fLJLJLJLJLJLLfl A tf & / Ј