SU1111133A1 - Device for controlling light beacon - Google Patents

Abstract

A DEVICE FOR CONTROLLING A LIGHT BEAM, containing a light source, a light switch and a series-connected photoelectric sensor, a switching and lamp changing unit, a control unit, a selective unit and a switch-on unit, characterized in that, in order to increase reliability by eliminating spurious device alarms, B He introduced the first time-delayed relay and a polarized two-winding relay, and the switch-on unit contains a series-connected pulse shaper and a T-trigger, output Which are the outputs of the switching unit and connected to the inputs and the switching unit and to the second inputs of the control unit, the third input is connected to the second output of the photoelectric sensor, the light switch output is connected to the second input of the switching unit, the winding of the first relay the time delay when triggered is connected to the device power supply buses, the common terminals of the windings of a double-polarized relay are connected to the power supply mine and to the plug of the first relay, the second terminals of the windings of two winding polarized relay connected to you-, switching unit turns, normally g closed contact of the first relay to you (L time response when activated is connected to the closing contact of the double-winding polarized relay and to the third input of the switching unit and changing lamps, fixed contacts of the two winding field The relay is connected to the outputs of the pulse driver of the switching unit.

Description

OdO Invention The invention relates to control and control systems with the transmission of electrical signals between the functional units entering it and can be used in the control of automatic lighting means of navigation equipment. A device for control is known. light beam containing a Koi vtyTauHM unit and lamp exchangers, a remote control unit and a switching unit connected in series in a closed loop, a light source connected to one of the outputs of the Switching and switching unit lamps, a light switch and a photoelectric light sensor the switch is connected to the power supply unit, and the photoelectric sensor is connected to another input of the switching unit and to the remote control unit til. However, the known device does not have sufficient reliability in operation. Closest to the invention is a device for controlling a light beam containing a switching and changing lamp unit, a light source, a switching unit, a light switch, a photoelectric sensor, a remote control unit selective block. This device is distinguished by the noise immunity of the remote control of the light beam C21. This device involves the separation of the high current circuit of the light source of the beacon and low current control circuits to save electricity and efficiently use microelectronics, however, the reliability of the device is insufficient because interruptions in power supply (at least short-term) cause false positives of the circuit. The spontaneous triggering of the electric drive of the lamp changer mechanism in the co-operation unit and lamp replacement due to the inertia of the light source (incandescent lamp) and the photoelectric sensor that receives its radiation, and the violation of the automatic operation of the beacon, and spontaneous shutdown kak .. The purpose of the invention is to increase reliability by eliminating false positives of the device during interruptions in the power supply of the device. The goal is achieved by the fact that the first relay with a time switch at the device for controlling the beacon, containing a light source, a light switch and sequentially connected photoelectric sensor, a switching unit and a switch of hands, a control unit, a selective unit and a switching unit, tripping and a polarized two-winding relay, and the switch-on unit contains a series-connected pulse generator and a T-flip-flop, the outputs of which are the outputs of the switch-on unit and connected to the second inputs the switching unit and the second inputs of the control unit, the third input of which is connected to the second output of the photoelectric sensor, the output of the light switch is connected to the second input of the switching unit, the winding of the first relay with time delay when triggered is connected to the power supply buses of the device, the common leads of the windings are double winding polarized the relays are connected to the power bus and to the closing contact. The first relay, the second terminals of the windings of the double-polarized relay are connected to the outputs of the switch-on unit, normally The closed contact of the first relay with you-.j time trigger is connected to the 1st contact of the two-winding polarized relay and to the third input of the switching and lamp changing unit / fixed contacts of the two-winding polarized relay connected to the pulses of the on-switch unit. This technical solution eliminates false alarms of the light control device in case of interruptions in the power supply of the beacon. The drawing shows a circuit diagram of the proposed device and timing diagrams of the device operation. The device contains a switching and lamp changing unit 1, a light source 2, a switching on unit 3, a light switch 4, a photoelectric dat. 5, remote control block b, selective block 7, polarized. relay 8 with switching con tact, clock 9 and windings 10 and 11, relay 12 (minimum voltage with time delay when triggered, having a switching contact 13 and winding 14. Block 1 of switching and changing lamps contains a generator of 15 square pulses power amplifier 16, key 17, element OR-NOT 18, delay element 19, drive 20 of the lamp changer, inverter 21. Selective unit 7 contains AND 22 and 23 elements and a one-shot 24 and 25. Control unit 6 contains a pulse driver 26 Ma k - and Turn off ma k, TV-indicator 27 and meter Block 28. Block 3 consists of a driver 29 and a T-flip-flop 30. The device operates as follows: Block 1 is activated by block 3, receiving a signal from light switch 4 or pulse signals from block 6 of the remote control through selective block 7 When the beacon operates, the source-light flux 2 is perceived. Sensor 1 5 and in the electrical signal synchronously with the source 2 worker is transmitted simultaneously to block 6 (for remote control of the fire characteristics) and block 1 (to control the operation of source 2 shine ). The failure of source 2 triggers sensor5 and activates the 20 me drive. Changes of lamps in block 1, which at the same time generates a control signal for its operation in block 6. Block 3 is independently affected by signals from the light switch 4 (via driver 29), which provides automatic operation as a function of the surrounding illumination, and block 7 (directly to points a and b), performing compulsory control of the subunit by the distant signals of block 6. Forward, the output of the T-flip-flop 30 in block 3 generates in block 1 a signal to switch on the beacon, Q. inverse output is a signal to turn off the maka. At the same time, the signals of these outputs are used by block 6 to signal the execution of distant commands (turn on or off the beacon) and polarized relay 8 to reliably fix the state of block 3 by performing positive feedback between the outputs of the T-flip-flop 30 through windings 10 and 11 and its inputs (points a and b) through the switching contact 9, which leads to one of the inputs of the T-flip-flop 30, the positive potential of the power bus when the break contact 13 of the relay 12 is closed. When the switch loses power, the break contact 13 re The le 12 closes (the relay releases), and the contacts 9 of the polarized relay 8 remain in the position they occupied before the power was turned off, i.e. middle contact 9 can occupy the lower (as in the drawing) or upper positions corresponding to the states of the trigger 30, or with a signal at its direct output or inverse, respectively. With the advent of the supply voltage, the circuit operates as follows. First, the positive potential from the power supply bus comes through the disconnecting contact 13 of relay 12 to block 1, blocking the lamp changer drive 20 from false alarms, and through the moving contact 9 of the polarized relay 8 from its upper or lower contact to point a or b of block 3 fixing the position of the T-flip-flop 30 before the light switch 4 begins to operate. Then, with sufficient time to complete the transients in the device circuit, the relay 12, which switches the IJ contact, is actuated. As a result, the positive perspiration is removed The unit started from block 1, unlocked and thus prepared for normal operation the circuit for driving the mechanism for changing lamps, and from the moving contact 9 of the polarized relay 8, thus preparing block 3 for receiving signals. In addition, the light switch 4 receives power (via the closing contact 13), which, responding to the surrounding illumination, outputs (if the illumination is low) or does not output (if the illumination is high) the signal to block 3, providing automatic switching on or off ka Thus, power interruptions do not violate the specified algorithm of the circuit operation and do not cause its false alarms in the process of automatic operation of the light beacon. The operation of the device is illustrated by diagrams showing the state of the elements at various points in the operation of the device. Diagram 1 shows the signals from the photoelectric sensor 5; in diagram 2, the operation of light source 2, in diagram 3, the state of the generator 15 and amplifier 16i in diagram 4, the signals coming from the inverted output. torus 21 to one of the inputs of the MLM-HE 18 element; in diagram B, the moment of operation of the drive 20; In Figure 7 and 8, the output state of the T-flip-flop 30 is direct and inverse, respectively; in diagrams 9 and 10, signals at points a and b of block 3, respectively, in diagram 11, the state of the light switch 4, on diagram 12, the state of the switching contact 13, in diagram 13, the presence of power (positive potential), in diagrams 14 and 15 shows the moment when the signals of the imaging unit 26 are output to the selective unit 7, which, from these signals, generates signals of the remote activation or deactivation of the beacon. Block 1 works as follows. The light on signal from the direct output of the T-flip-flop of block 3 (diagram 7) arrives at key 17 and opens it (diagram 5). As a result, the generator 15 which generates the characteristic of the fire lamp, which signals are amplified by the power amplifier 16 and supplied to the light source 2, receives power. The actuator 20 of the lamp changer mechanism turns on when the source 2 of the light blows out, when all the inputs of the OR-NOT 18 element have no signals and a signal is generated at its output, which through the delay element 19 turns on the actuator 20. The delay is necessary to prevent false actuators 20 P The moment of transition of the filament of the light source 2 from the cold to the hot condition. With a good source of light 2 on any of the inputs of the OR-NE 18 element, there is always a signal (either from pin 13 at the time of power-up, or from the inverted output of Ttrigger 30 of block 3 when turning off the beacon, or from photoelectric naf 5 radiation source 2 of snow, or from the inverter 21 in the pause between the signals of the generator 15).

Unit 6, performing the function of an executive device, is an executive station (remote control system IP1, provides for signals from the control station (SU) to generate pulsed signals by the former 26, turn on, turn off the stop (not shown, because it does not belong to the proposed device), teleindicator reception of 27 potential signals; Operating mode; Mac operation; Changing the light source; and receiving, by the measuring unit 28, synchronously with the operation of the light source 2, of the video signals transmitted from this PI to the SU only by calling it .

Selective block 7 misses the signals of driver 26 (signals TU), which follow in a certain sequence and for a limited time interval.

In the initial state, there are no signals at the outputs of the And 22 and 23 elements and the single vibrators 24 and 25. The circuit of the selective unit 7 is ready at any moment to receive control signals in order to turn on or turn off the light mater by emitting signals in unit 3.

After taking off the operation of the device for controlling the light beam by means of time diagrams 1-15. The periods of time during which the circuit receives power are marked on diagram 13. At time t, i (with a delay after turning on the power), relay 12 is activated and switches its Pin 13 (diagram 12) T The positive potential at point b (REACHED there via pin 9 relay 8 when turning on the yytya), caused the presence of a signal at the inverted output of the T-flip-flop 30 (diagram aj, at time t disappears ( 10). At the same time receive the power of the light switch 4 through the closing contact 13. If this happened during the day when the light switch 4 does not have a signal at the output, then only with a decrease in ambient light (at time t) the light-breaker 4 gives a signal (diagram 11). 29 gives impulse to a

(diagram 9), providing switching of T-flip-flop 30 (diagrams 7 and 8, switching on key 17 (diagram 5) and operation of light source 2 in the mode determined by generator 15 (diagrams 2 and 3). The photoelectric sensor 5 reproduces the same mode ( diagram 1). Winding 10 of relay 8 receives power and switches contact 9, providing connection through it of point a with disconnecting contact 13 of relay 12. The light machine operates in a predetermined mode.

Let an emergency power off occur at time tj and at time t re-enable it, the 13K diagram. In this case, a signal appears at the direct output of the T-flip-flop 30 (7), since there is a positive potential at point a. Key 17 is included in the result (diagram 5 and the computer starts working.

If the power interruption occurs at the moment when this situation does not work on the diagrams), then when the power is restored, the positive potential will immediately receive a tb. Then the signal at the inverse output of the T-flip-flop 30 and the ma k will be turned off until the moment when relay 12 is triggered, when light switch 4 receives power, which is and. will determine the state of the beacon (in daylight it is off, and in the dark time it is turned off. Time tj- corresponds to the operation of relay 12 after power supply. In diagram 9, the signal from time tl to tj is present at point a as a result of the relay operation delays 12, and merged with the signal outputted by the F 29 terminal after turning off the light switch 4, to form a signal in the time interval t ;, - t.

Suppose that when the light beacon operates at time t, the light source 2 light diagrams 1 and 2) failed, on which this light is characterized. The signal is characterized by a shortened signal ma. Then, due to the absence of signals at all inputs of the OR-HE element 18, the latter produces the signal through the delay element 19 to the actuator 20, which operates for a time t - tg (figure 6) and provides a change of source 2 of light. At the same time, during this period of time, the signal comes from the actuator 20 to the display unit 27 of unit 6. At time tg, the next light source 2 comes into effect (diagram 2), which has been entered instead of the failed, and continues to work;

The remote switching off of the light beam is carried out by two consecutive signals from shaper 26. First, at time tq, a pulse is formed at the input of the one-shot 25 (diagram 14), which prepares the element 22 for triggering, and then at the time of Chad (figure 15) a second pulse is formed which triggers the element 22 and triggers a switching pulse to the input of the Trigger 30. The trigger switches to turn off the light of the Mac. The T-flip-flop status signals 30 shown in diagrams 7 and 8 are transmitted to tele-indicator 27, but in reverse order. First at time i. a pulse is formed at the input of the one-shot 24 (chart 15), which prepares element 23 to trigger, and then at the time point chart 14) a second pulse is formed,

which triggers the element I 23 and triggers an energizing impulse to the input of the T-flip-flop 30. The flip-flop 30 switches to ensure that the light is switched on With further

The most recent operation of the camera with the onset of the brightest time of the day at time t, j is the light switch 4 (the IIVH diagram k turns off the state diagram 8

trigger 30}.

The present invention allows, without requiring uninterrupted power supply to a power unit, to simplify the latter and reduce the number of possible emergencies on the automatic beacon. All this leads to a reduction in the cost of creating and maintaining automatic objects.

Claims (1)

CONTROL DEVICE: LIGHT BEACON, containing a light source, a light switch and a series-connected photoelectric sensor, a switching and lamp changing unit, a control unit, a selective unit and a switching unit, characterized in that, in order to increase reliability by eliminating false alarms of the device, the first relay with a time delay during operation and a polarized · two-winding relay are introduced into it, and the switching unit contains a pulse shaper and a T-trigger, the outputs of which are connected in series The outputs of the switching unit are connected to the second inputs of the switching unit and to the second inputs of the control unit, the third input of which is connected to the second output of the photoelectric sensor, the output of the light switch is connected to the second input of the switching unit, the winding of the first relay with time delay when connected is connected with the power supply buses of the device, the common terminals of the windings of a two-winding polarized relay are connected to the power bus and to the make contact of the first relay, the second conclusions of the windings of the double-winding polarized relays connected to passages _with You are a switching unit ® normally closed contact of the first relay with a time delay triggered when coupled with two winding make contact polarized relay minutes to a third input of the switching unit and changing of lamps, two fixed contacts: the winding of the polarized relay is connected to the output of the pulses of the switching unit.