SU963061A1 - Signalling device - Google Patents

Description

one

The invention relates to signal devices and can be used in devices for automation and electrical engineering, in particular, for controlling movement.

An automatic traffic light for traffic control is known, which supports a driver unit, an electromagnetic relay, a power supply unit and signal lamps 1 3.

However, the device has low reliability due to the failure of signal lamps due to current surges.

The closest in technical essence to the present invention is a signaling device containing a two-color traffic light, the keys of each section of which are connected to the light source, the code block, the outputs of the first multivibrator are connected: via a series connected element and a key to the second and third multivibrator, the outputs

which are connected by corresponding keys that are connected to the fourth multivibrator, the first and third outputs of the code block are connected to the first key of the first section of the traffic light, and the second and fourth - to the second section of the traffic light 2.

The device is characterized by low reliability due to the rapid failure of light sources that obs-,

It was detected by the passage of a large current through the filament of the lamp at the moment of its activation due to the small resistance of the cold filament.

15

 invention - improving the reliability of the device.

Claims (2)

The goal is achieved by that Mto in a signaling device 20 containing a code block, the first output of which is connected to the first input of the First key, the output of which is connected to the first input of the first light source, the second output of the code block is connected to the first input of the second key, the output of which is connected A pulse former, a single pulse generator, the first output of the code block are connected to the first input of the pulse former, the output of which is Connected to the input of the generator of a single pulse, the output of which is connected to the second inputs of the first and second keys, the first output of the voltage source connected to the second input of the first light source and the third emu input of the second key, the output of the corridoro connected to the first input of the first light source the second output and voltage source are connected to the second input of the second light source and the third input of the first key, the second output of the code block is connected to the second input of the pulse former. The drawing shows a structural electrical circuit of the device. The device contains a code block shaper 2 pulses, a single pulse generator, keys 4 and 5, sources 6 and 7 of light, voltage source 8. Code block 1 can be performed on a multivibrator with phase outlets. shaper 2 generates a short pulse at the moment of switching over code block 1 and can be performed on two RC circuits with diodes. The generator 3 generates a single pulse of a given duration. The device works as follows. The signal from the first output of code block 1 is fed to the first input of the first key k. The key Z is open and the key 5 is closed. The supply voltage from the outputs of the voltage source 8 is connected to the light source 6, which ensures its luminescence. The light source 7 is thus shunted with a key and does not shine. After the time has elapsed, the multivibrator of code block 1 is connected, the key is closed, and the key 5 is opened, the voltage source is connected to the light source 7, and so on. D moment of switching the multivibrator of the code block 1 through the pulse shaper 2, the generator 3 of a single pulse is started, the output signal of a certain duration which closes the previously open key, while the sources 6 and 7 of the light are connected to the voltage source 8 in series. The voltage of the source B is redistributed between the light sources 7 and 6 in proportion to their resistance, which is less with the light source turned off and increases as its filament warms up. At the end of the signal from generator 3, a key is turned on, the input of which contains a signal from the output of the code block and the corresponding light source is connected to voltage source 8 and its brightness reaches its nominal value. The economic effect is to increase the life of the light source. The invention of the device for signaling containing the code block, the first output kOTOporo connected to the first input of the first patch, the output of which is connected to the first input of the first light source, the second output of the code block connected to the first input of the second key, the output of which is connected to the first input of the second light source Voltage source, characterized in that, in order to increase reliability, a pulse shaper, a single pulse generator, and the first output of the code block are connected to the first input of the generator. pulse pulse, the output of which is connected to the input of a single impulse generator, the output of which is connected to the second inputs of the first and second keys, the first output of the voltage source is connected to the second input of the first light source and the third input of the second key, the output of which is connected to the first input of the first light source the second output of the voltage source is connected to the second input of the light source and the third input of the first key, the second output of the code block is connected to the second input of the forms; worldview impu rsov. Sources of information taken into account during the examination 1. USSR author's certificate lf, cl. G 08 G 1/09, 1971. 2. USSR author's certificate No. 473205, c. 08 G 1/08, 1973 (prototype).