SU993308A1 - Device for monitoring ship-borne signalling facilities - Google Patents

Description

The invention relates to shipboard electrical equipment and can be used to control in the circuit of shipboard signaling means (signal lanterns, drones, roars, bells, etc.) or permanent current with minimal loss of masses in it, can find application where it is necessary to control a constant or alternating current with minimal power losses with high reliability.

A device for controlling ship signaling means is known, which contains a transformer, the first winding of which is connected in series with the signal means and the switch connected to the power supply source 1 of the signal means, power amplifier, the output of which is connected to the input of the signaling device 1.

The disadvantage of this device is that it allows you to control the presence of only alternating current in the circuit of the signaling means and does not allow control of the presence of direct current.

. (The closest to the proposed one is a device for switching on and controlling ship signaling means g

containing transformer, switches installed in the supply circuits, rectifier and alarm device 1/2,

However, the known device does not control the operation of signaling means, direct current, and requires individual adjustment, since it works on the principle of compensating for the magnetic fields created by the current, which is active in the controlled circuit, and by the current from the reference source flowing through the compensation winding. In this connection, for a signal means of a certain power, for example

15 lamp signal-distinctive lamp, you must use a specific winding of the transformer, this requires a distinctive adjustment of the current in the compensation winding,

20 which complicates the device.

The purpose of the invention is to expand the functionality of the device by monitoring ship signaling means in both the AC circuit and the DC circuit. ..

Claims (2)

This goal is achieved by the fact that a transformer containing 30 signal transformers, the first of the input windings of which is connected to the power supply circuit through the ship signaling device and a switch, is connected to a rectifier, and a signaling device, the first and second generators, a recalculation unit, a one-shot, element I, a BAN element and a memory unit, the output of the first generator is connected to the second input winding of the transformer, the output of the rectifier is connected to the first input of the transducer account, the outputs of which are connected to the inputs of the element I, the output of which is connected through a one-shot to the first input of the memory unit and the first input of the element BANGE, the output of the second generator is connected to the second input of the conversion unit and the second input of the element BANGE, the output of which is connected to the second input of the memory block ti, the output of which is connected to the input of the detector. Fig, 1 shows the structural diagram of the proposed device; 2 shows timing diagrams for the operation of the device. A device for monitoring current in the circuit of the ship signaling means of FIGS. 17 includes a switch 1, a sampling means 2, a transformer 3, a high-frequency generator 4, a rectifier 5, a recalculation unit b, a generator 7 of low frequency, the element 8, a single vibrator 9, the element BAN 10, memory block 11, detector 12. Switch 1 is installed in the power supply circuits of the ship signaling means and in the power supply circuit of the alarm. Signal means 2 in series with the first input winding of transformer 3 in the power supply circuit of ship's signal means 2. High-frequency | RF generator 4 is connected to the second input winding of transformer 3, the third winding of which is connected to the rectifier input 5. First recalculation unit b input connected to the output of the rectifier 5, the second input is connected to the input of the low-frequency generator (LF) 7 and to one 1E input of the BAN 10 element, and the output of the conversion block b is connected to the corresponding inputs of the AND 8 element whose output is It is connected to the input of the one-shot 9. The first input of the memory block 11 is connected to the output of the one-shot 9 and to the second input of the BAN 10, the second input is connected to the output of the BAN 10, and the output is connected to the signaling device 12. The device works as follows. When the switch 1 is turned on, the ship signaling device and the elements of the signal circuit are powered. If the ship signaling means 2 is normal, that the current flowing in the circuit of the signal means passes through the first winding of the transformer 3 connected to the constant power supply circuit (Fig. 2c (/ or alternating (Fig. 2-5) current. The number of turns the first input winding is chosen so that the current passing through it creates such a magnetic flux that would introduce the transformer core 3 into saturation with the frequency of the current passing through the ship signal circuit. x pulses (.fig.2y with a frequency that exceeds the frequency of the current passing through the circuit of the ship signaling means, which are fed to the second input winding of the transformer 3, creating an alternating magnetic flux that remagnetizes the core of the transformer 3 with the frequency of the RF generator 4. When in the circuit the ship signal means 2 is supplied with direct current, then the core of the transformer 3 is introduced completely into the saturation state of a constant magnetic flux created by the current passing through the first input winding of the transformer 3. Since erdechnik transformer 3 can be remagnetized in this case from the RF generator 4, the third output winding of the transformer 3 will be zero signal, and therefore, the output of the rectifier 5 (ris.21R also zero signal. When an alternating current passes in the circuit of the ship signaling means 2, the core of the transformer 3 is not fully introduced into the saturation state of the alternating magnetic flux created by the current passing through the first input winding of the transformer with the frequency of variation of this current, namely, the core of the transformer 3 is not entered forcing only in the region of the passage of alternating current through zero points. Therefore, only at these times, the core of the transformer 3 can be remagnetized from the RF generator 4 through the second winding of the transformer 3. The pulses from the third output winding of the transformer 3 from the resulting magnetic flux are amplified and rectified by the rectifier 5 (Lig.2. From the output rectifier 5 pulses arrive at the first counting input of the recalculation unit 6, and low-frequency pulses come from the output of the second installation input of the recloser b, and the low-frequency generator 7 (fig.2EX recalculation unit 6 counts the impulses received Our first counting input, only when a unitary signal is supplied to its second installation input, when the second installation input of the recalculation unit 6 gives a zero signal, all the outputs of the recalculation unit reset to the zero state. the first winding of the transformer .3 the recalculation unit 6 counts the pulses received at its input only for the presence of alternating current (FIG. 20-), and if there is direct current at the first input of the recalculation unit 6, no impulses arrive . . Since the number of pulses in the presence of current in the first winding of the transformer 3 arriving at the first counting input is small or no at all, until a single signal arrives at the second installation input, then the inputs of the And 8 element connected to the corresponding outputs of the R4B block b recalculation, both single and zero signals are received, therefore the output of the And 8 element is a zero signal (Fig. 21C.). At the output of the one-shot 9, which forms a negative pulse at the output with a positive signal drop at its input from O to 1 - signal 1. At the first input of memory block 11 is a single signal (Fig. 2A), the memory block is transferred from one stable state none other when a zero signal is applied at its input. The element BAN 10 works as follows. When a single signal arrives at one of its inputs, which is connected to the output of the one-shot 9, then the BANNER output passes the signal level that goes to its second input, connected to the output of the low-frequency generator 7. When the zero signal arrives at the first the entrance to the element BAN 10 at its output will be a single signal. Consequently, since the first input of the BANNER element 10, connected to the single-output 9 output and the first input of the Pampti block 11, contains a single signal {& pg, 2d), then the second input of the memory block 11 receives pulses with the frequency of the LF generator 7 (Rig.2m), and memory block 11 is set to a state when its output is zero (fig.2n). The signal to the input of the detector 12 comes to the left (Lig.2p). The alarm is not turned on. If the ship signaling means is faulty, then in the first input winding of the transformer 1) l 3 the current will not flow (6iir.2a and d), therefore the core of the transformer 3 will not be in the saturation state, but will be re-magnetized due to postdate pulses from the generator RF torus 4 (fig. to the second input winding of the transformer 3. Pulsed by a variable magnetic flux, the pulses in the third output winding of the transformer 3 are amplified, rectified by rectifier 5 and received at the first counting input of the conversion unit 6 (figure 2 d and d), pulse The units will be recalculated by the recalculation unit 6 in time until a single signal from the low-frequency generator 7 comes to the second installation input of the conversion unit 6. As soon as all the outputs of the conversion unit 6 recalculate all the single signals at the same time, the output of the element And according to the unit pulse that goes to the input of the one-shot 9 (figure 21 sl.) The positive drop from O to 1 will create a negative pulse, the duration of which should exceed half the pulse following period from the LF generator 7 (figure 2). Thus, this negative impulse will be periodically received (at the first input of the memory block 11 and at the first input of the BANGE element; 10, i.e., at the second input of the memory block 11, if there is no current in; the first winding of the transformer 3 will be ( a single signal (Fig. 2m) is present, and a zero signal will be periodically received at the first input of memory 11 (oig.2A). Consequently, memory 11 will switch to another steady state and at output of memory 11 there will be a single signal ( Fig.2i), which is fed to the detector 12, including it (Lee .2m). The indicator 12 is turned on, indicating that there is no current in the circuit of the ship's signal means 2. After the fault has been rectified, the device returns to its original state. I Thus, the proposed device for monitoring ship's signaling means allows monitoring both alternating and permanent current with minimal power loss and high reliability in the ship signaling circuit. In addition, the proposed device allows a much wider range of monitored powers and easier setup of roystva Claims An apparatus for monitoring ship signaling means, comprising a transformer, the first of whose input windings is connected through the ship signaling means and the FF switch to the power supply circuit, the output winding of the transformer is connected to a rectifier, and a signaling device, characterized in that, in order to extend the functional scope of the rectifier control of ship signaling means both in the AC circuit and in the DC circuit; the first and second generators, a recalculation unit, a one-shot, e The And element, the BANGE element and the memory block, the output of the first generator is connected to the second input winding of the transformer, the rectifier output is connected to the first input of the conversion unit, the outputs of which are connected to the inputs of the And element, the output of which is connected through the one-vibrator to the first input of the memory block and the first input of the BANCH element, the output of the second generator is connected to the second input of the conversion unit and the second input of the BANGE element, the output of which is connected to the second input of the memory unit whose output is connected to the input of the alarm device. Sources of information taken into account in the examination 1. Authors of the USSR № 370633, cl. G 08 G 3/00, 1973. 2. The author's testimony of the USSR № 325625, cl. G 08 C 19/02, 1972 (prototype). H s Ux / w one I I V h Iv. t I 1 and c cr cs c: c; c en