SU1483682A2 - Pulse illuminator - Google Patents

Abstract

The invention relates to electrical engineering and can be used for flashing light signaling of leading lights. The aim of the invention is to improve the performance characteristics of the separated geographically groups of light devices and reduce their mass. For this, the device contains a group of light emitters 1.1-1.N, each of which has a flash lamp 2, a storage capacitor 3, an ignition unit 4, a two-winding relay 11 with a switching contact 12, threshold elements 13, 14, a power supply unit 15 that includes a transformer 16, rectifiers 17, 18, ballast capacitors 19, 20, a thyristor 21 and a voltage stabilizer 22, as well as a key circuit 23 and a control unit that contains a ring counter-distributor 5, a logical element BAN 6, the master oscillator 7, coding block 8, triggers 9, 29, photodata ticks 10, 28, a relay 25 with a switching contact 24, an alternating current source 26, a DC source 27, a front edge converter 31 of a square pulse into a short pulse and a rear edge converter 30 a square pulse into a short pulse. Parallel communications of rectifiers 17, 18 provide acceleration of the charge of storage capacitors 3. The photosensor 10, controlling the surrounding illumination, provides the emitters in day and night (low energy) operating modes, and the photosensor 28, perceiving radiation from one group of light emitters (rear flap), provides the common-mode inclusion of another group (front flap fire) light emitters. 1 il.

Description

The invention relates to electrical engineering and can be used for light signaling.

The purpose of the invention is to improve the performance of spaced apart groups of light devices and reduce their mass.

The drawing shows a diagram of a pulsed lighting device.

Pulsed lighting device contains a group of light emitters 1.1-1.N with flash lamps 2, parallel to each of which are included storage capacitors 3, ignition blocks 4 according to the number of lamps whose inputs are connected to the outputs of the ring distributor 5, the counting input of which the logical element BANGE 6 is connected with the master oscillator 7, the coding unit 8, trigger 9, the photo sensor 10 connected to the input of the trigger 9, one two-winding relay 11 with switching contact 12 and two threshold elements 13 and 14 for each emitter 1.1-1.N, each emitter 1.1-1.N is equipped with a power supply unit 15 with a transformer 16 at the input and two secondary windings, two rectifiers 17 and 18, ballast capacitors 19 and 20, a thyristor switch 21 and a voltage regulator 22, one of the secondary windings of the transformer 16 being connected

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to the first rectifier 17, and the other through ballast capacitors 19 and

20- to the second rectifier 18, the output of which is via a thyristor key

21connected to storage capacitor 3 and threshold elements

13 and 14, the power inputs of which through the voltage regulator 22 are connected to the output of the first rectifier 17, and the outputs of the threshold elements 13 and 14 through the switching contact 12 of the two-winding relay 11 and the key circuit 23 are connected to the control input of the thyristor switch 21, the winding of the two-winding the relay 11 of each radiator 1.1-1.N is connected to the corresponding outputs of the trigger 9 via the switching contact 24 of the intermediate double-winding relay 25. In addition, the device contains an AC source 26 to which all primary voltages are connected the transformer 16, and the source 27 of the direct current connected to the common output of the switching contact 24, the second photo sensor 28, the second trigger 29 and the converters of the rear 30 and front 31 of the pulse front into short pulses, the outputs of which are connected respectively to the first and second inputs of the second trigger 29, and the inputs with the output of the coding unit 8, the output of the second photo sensor 28 is connected to the first input of the second trigger 29, the output of which is connected to the prohibitory input of the BAN 6 logic element, diodes 32 and 33 in each radiator 1.1-1.N, cat odes which are connected with. the positive output of the first rectifier 17, and the anodes with the switching contacts 24 of the intermediate double-winding turnip 25, the outputs of the second rectifiers 18 of all emitters 1.1-1.N are interconnected in parallel,

Pulsed lighting device operates as follows.

Under the action of alternating current from source 26 and control direct current from source 27, connected in parallel with all rectifiers 17 emitter units 1.1-1.N, the device starts to function 4836826

The storage capacitor 3 of this radiator transmits at the same time through its plates the charging pulses of all power supply units 15 for each half-voltage of alternating current.

As the storage capacitor 3 charges, the negative offset at the input of the key increases.

A circuit 23, which, at a predetermined voltage threshold 13 at the storage capacitor 3, is blocked and the thyristor 21 is turned off. The light emitter is ready for the next flash of lamp 2 at the bottom

energy level (e.g., at a voltage across the storage capacitor 3 of 500 V). Driving generator 7 determines the frequency of flashes

to Moreover, the schemes of all the light of the issuance of electrical pulses

1.1-1.N out emitters are identical and work the same. Since the outputs of all rectifiers 18 are connected in parallel by inter-unit communications, and the flashes of the light emitters are alternately generated by pulses of the ring-distributor 5, the power supply 15 of all emitters simultaneously participate in the charging process of each storage capacitor 3, providing functional redundancy and accelerating the charge of storage capacitors 3. The first photo sensor 10, depending on ambient light, transfers the first trigger 9 to one of its two stable states. If the ambient illumination is 200 lux or less (dark), then the first trigger 9 has its direct output open and the contact 24 of relay 25 is in the upper position. As a result, the switching contact 12 of the dual-winding relay 11 takes the position indicated in the drawing, in which the output of the threshold element 13 is connected to the key circuit 23, which reacts to the voltage up to which the storage capacitor 3 is charged. In the absence of a voltage on the storage capacitor 3 (capacitor discharged after the next flash of the lamp 2) the input circuit of the threshold element 13 does not block the key circuit 23 and ensures the opening of the thyristor 21 and the supply of charge voltage from all rectifiers 18 light waves x emitters on the storage capacitor 3 of this light emitter.

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to the counting input of the ring distributor 5, and the latter distributes these pulses in time between the light emitters 1.1-1.N. The coding unit 8 generates square pulses, during which the operation of the ring distributor 5 is prohibited by the signals of the master oscillator 7, and between the pulses the operation of the ring counter distributor 5 is allowed. When the output of the coding block 8 causes a rectangular pulse, its leading edge is converted by the converter 31 into an acute-angular pulse, which, acting on the input of the second trigger 29, ensures that the latter is transferred to a stable state with a signal on the inverse Exit. This signal, acting on the prohibiting input of the BAN 6 logical element, blocks the signals of the master oscillator 7 and thereby forms a pause between batches of flashes (multiple flashes). After the end of the rectangular pulse, the falling edge of it is converted by the converter 30 into an acute angle pulse, which converts the second trigger 29 to the initial state, removing the signal from its inverse output, and therefore the inhibiting input of the logical element BANGE 6, ensuring the passage of the signals of the master oscillator 7 to the counting input of the ring counter-distributor 5. Thus, the time between rectangular pulses of the coding block 8

determines the duration of the formation of composite flashes (flash packets). In order to eliminate the effect of unavoidable phase differences in the operation of coding blocks 8 of two geographically separated groups of light emitters on their action as leading lights, the photo sensor 28 of the first group perceives light of the second group and reacts to this by issuing an electrical pulse to that input of the second trigger 29, which causes it is returned to its initial state (by the use of a ring counter-distributor, 5 pulses of the master oscillator 7). In terms of the number of perceived light pulses, the photo sensor 28 outputs a corresponding number of electric pulses, preventing the second trigger 29 from switching by the signal of the coding unit 8 and thereby providing synphasic light flashes of the two groups of light emitters. Some delay (tens of milliseconds) from the moment when the photosensor perceives the light of the first set of light emitters until the second light emitters start emitting the second set of emitters does not reflect the simultaneity of visual perception by the seafarer of indicator lights equipped with the indicated groups of light emitters, since convenient identification and direction finding of the light signals (composite flashes) is 0.2 or more seconds. Thus, the specified signal mode of the pulsed lighting device (one or two) is maintained automatically and around the clock. With the onset of daylight (illumination 300 lux) under the action of the first photo sensor 10, the first trigger 9 switches to another stable state, in which its inverted output is open and the contact 24 of the relay 25 switches to a different (lower) position. In this case, the switching contact 12 of the double-winding relay 11 occupies another (right) position, at which the output of the threshold element 14 is connected to the key circuit 23. This circuit is now blocked when the storage capacitor 3 is increased, determined by the threshold element 14 (for example, at

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1000 V, instead of 500 V at night), providing an increase in the energy of the flash of light compared with the night energy caused by the action of the threshold element 13. With the onset of twilight (illumination 200 lux), the device again switches to emitting light signals of low energy.

In spite of the reduced nighttime flash energy, the range of the light signals does not decrease as compared with the daylight when the flash energy is increased. Moreover, individual rectifiers with an increased charge voltage and parallel connection of their outputs provide an acceleration of the charge of storage capacitors. Along with the acceleration of the charge of storage capacitors, the parallel connection of rectifiers during the alternate operation of light emitters helps to reduce the installed power of each power supply unit in proportion to the number of light emitters, which leads to a decrease in their mass.

The application of the invention by equipping with pulsed lighting devices of illuminating beacons or navigation lights that perform the function of an alignment is aimed at ensuring a confident navigation along the fairways in order to reduce the accident rate of ships in the coastal zone. As a result of ensuring the common-mode operation of the range lights, the required number of light emitters is reduced, and a decrease in the installed power of the power supply unit of each of the emitters contributes to a decrease in metal intensity.

Claims (1)

Invention Formula Pulse lighting device on auth.St. No. 1304178, characterized in that, in order to improve the performance characteristics of geographically dispersed groups of light devices and reduce the mass of the latter, a second trigger, a second photo sensor and rear and front edges of a pulse into short pulses are introduced into the device, the outputs of which are connected respectively to the first and second inputs of the second trigger, and inputs - with the output of the coding block, the output 91483682 0 the second photo sensor is connected to the first one with the prohibiting input input of the second trigger, the output of the logical element BAN.