SU1411182A1 - Vehicle signal device - Google Patents

Abstract

The invention relates to transport signaling devices and can be used as part of information D1. and automated motion control systems. The purpose of the invention is to increase the information content of the device. The device contains a signal light G 2 incandescence and a lamp located between the lens and a lamp 2 liquid crystal 3, bounded by a photoresistor 4. The lamp 1 has an additional photoresistor 5, wired in series with the photoresistor 4. Current regulator 6, inputs under - the key, respectively, via switch 7 to the power supply, to the outputs of the adder 8 and the voltage limiter 9, performs; automatic adjustment of the current through the lamp 2; Depending on the ambient light and the luminous flux of the lamp 2, the electric control field applied to element 3 changes, ensuring uniformly the illumination of the diffuser 1 and redistribution of the luminous flux to the side visibility zone, which improves comfort perception of signal information. 1 hp f-ly. 2 Il. with S (/) With

Description

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The invention relates to signaling devices: transport and can be used as part of information and automation systems and motion control systems as a means of presenting information, 11 and to participants in traffic.

The purpose of the invention is to increase the information content of the device.

FIG. 1 shows a block diagram of the device; in FIG. 2 - lamp current regulator.

The vehicle signaling device contains a light signal lamp 1 with incandescent lamp 2 and a liquid crystal element 3 placed between the diffuser of the signal lamp and lamp 2, which is bridged by the photoresistor 4. An additional photoresistor 5 is installed in the case 1 and connected in series with the photoresistor 4. Regulator The torus b of the lamp current is connected to the output of the incandescent lamp 2, and the inputs, respectively, through the switch 7 to the power source, to the outputs of the adder 8 and the voltage limiter 9. The inputs of the latter through the trimming resistors 10 and 11 are connected to photoresistors 4 and 5, the latter directly and through the tuning resistor 12 are connected to the inputs of the adder 8, which is connected to the operational amplifier 13 and the resistors 14-16.

The regulator 6 is made (Fig. 2) on a series-connected integrator 17, a signal level selector 18, an adder 19, a mapatopua 20, a key element 21 and a smoothing filter 22, the output of which is connected to another input of the adder 19 and is the code of the regulator 6 , the inputs of which are, respectively, the control input of the key element 21 and the inputs of the integrator 17 and the selector 18

A voltage limiter 9 is provided on a stable voltage source and two adjustable voltage dividers, the outputs of which are the output terminals of the PTU 9, the first remote control being used to set the minimum value of the control electric field of the liquid crystal element 3.

The device works as follows.

Electric field applied to a liquid fy element 3

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is automatically adjusted with the help of photoresistor A, depending on the ambient light, this changes its transparency and it disperses the luminous flux of the lamp 2 and ensures uniform illumination of the light. seeder and redistribution of light fluxes in the zone of side visibility.

The voltage drop on the additional photoresistor 5, depending on the luminous flux 2, is summed algebraically with the voltage drop across the photoresistor 4 in the adder 8, for example, the ratio of the transmission coefficients of which is set by the resistor, 12 and determined, is the ratio of the external illumination increment (external luminous flux) to the increment of the internal illumination (increment of the luminous flux in the lamp 1 from the lamp 2), which is supported by the regulator 6. and the limiter 9. The value of the resistor. 12j thus obo Pajj determines the sensitivity of the change in the luminous flux from the lamp 2 to the change in ambient light measured by the photoresistor 4.

 In this case, the processing, the ratios of the internal and BHeiuHerq luminous fluxes occur only from a certain minimal level of the luminous flux of the lamp 2 specified by the voltage limiter 9, i.e. Under zero ambient light, the heat of Lane 2 provides the luminous flux of a signal lamp, which is necessary for a confident perception of signal information to participants in traffic under appropriate environmental conditions, for example, at night. As the external illumination increases, the device automatically increases the incandescence of the lamp 2 and the internal luminous flux redistributed: and spread by element 3 also depending on the changed external illumination, with a sensitivity factor specified by resistor 12,

The voltage from the output of the adder 8 goes to the input of the integrator 17 of the controller 6, where it integrates with a certain time constant that determines the speed of the device. The voltage value at the output of the selector 1B is set in accordance with the magnitude of the voltage coming from the outputs of the limiter 9 and algebra.

In combination, adder 19 is connected to the output voltage of regulator 6.

When this difference reaches a certain value, equal to the small size necessary for a transition to a mapatopa 20 to another, for example, single (opening key element 21), this transition occurs, the key element 21 opens, and the voltage comes from the power source through smoothing 1 –1 –1 filter 22 to lamp 2. Filter 22 smooths the pulse-width modulated pulses at the output of element 21 in order to improve the lighting characteristics of the signal lamp .1.

In the process of, for example, a decrease in ambient light, the voltage at the output of the integrator is relieved and when a condition is reached where the voltage at the i-me at the output of the integrator 17 is less than the limiting voltage, the output of the selector 18 forms a voltage equal to the limiting voltage; as a result, the comparator 20 goes into another steady state, in which the key element 2.1 turns on, the voltage on the lamp 2 and the current through it drops, g. lower luminous flux from the lamp 1. The fall rate is determined by a constant filter 22. This occurs until at the input of the adder 8 the mismatch reaches a value that allows the integrator 17 to accumulate a voltage at its output that causes the comparator to change over another state by providing an 824 process,

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Claims (2)

1. A vehicle signaling device containing a NavaI van lamp, a liquid crystal element that is shunted by a photoresistor, so that, for the purpose of informativeness, it is equipped with an additional photoresistor, one pin of which is connected to one pin of the main photoresistor, an adder, a voltage limiter, and a lamp current regulator, the output connected to the incandescent lamp, and inputs, respectively, through the switch-off to the power source, to the outputs of the adder and voltage limiter, whose V5 SODES are connected via trimming resistors to the corresponding To each other, the photoresistors connected to the cymator cy inputs. 2.- The device according to claim 1, which is based on the fact that the current regulator is connected to a series of connections to the integrator, the spectator signal level, the adder, the comparator, the element and the smoothed filter BbixojT, which is connected to the other G), the sumator input p is the output of the lamp current regulator, the inputs of which are respectively the control input of the key element and the inputs of the integrator and the signal level vector spectator. From 7 kg g Ф14ё.2