SU1212620A1 - Control system for colour-music fountain - Google Patents

Description

The invention relates to fountain control devices, in particular, to a color organ fountain control system.

The aim of the invention is to increase the efficiency of water jet control and simplify the operation of the system.

FIG. „,.. .. is a block diagram of the system; On FC 2 - a block from the node of the node for controlling the dynamics of water nykh, fruy.

The CHCTfenia color control of the optic fountains has a sound source of 1 connected through filters 2 and amplifiers 3 to voltage regulators 4 with lights 5 and electropneumatic converters 6 connected to the second chambers of the first pneumatic relay 7, to the third chambers the second pneumorele 8, to the controlled inputs of the pneumatic valves 9 and 10, the control inputs of which are connected to the first and fourth chambers 7 and 8 of the pneumorel, respectively, to the actuator 11 and, respectively, through the pneumatic resistance 12 and 13 to the third chamber barely 7 and the second chamber pneumorel 8.

The system works as follows.

The sound spectrum produced by a sound source, such as a tape recorder, is fed to frequency filters 2, where frequency separation takes place, such as high, medium and low, into three channels. In each channel, the signals of each frequency filter are amplified with the help of amplifier 3. The amplified signal is fed to two independent devices: to voltage regulators 4, where the voltage changes proportionally to the frequency change of the corresponding filter, and then to illuminators 5, for example to electric lamps having different backlights according to frequency filters, and to electropneumatic converters 6, where the electrical signal corresponding to a certain frequency is proportionally converted to pneumatic Kie outputs 1 0.2 kgf / cm. This pneumatic signal comes in parallel at pneumorel 7 and 8, actuator 11 and pneumatic valves 9 and 10. A change in frequency causes a change in the pneumatic signal, and the latter opens or closes the actuator 11, as a result of which the water pressure on the nozzles changes.

With a slowly varying signal from the amplifiers 3, the output pressure of the electropneumatic transducer 6 also changes slowly and monitors the music smoothly. With

In this way, the air enters the second (5) chamber of the pneumorele 7 and the third chamber (a) of the pneumorele 86 through the pneumatic suppressor 12 and 13 and into the chambers 7a and 86. This process is characterized by the fact that a slow change in the air pressure leads to slow movement (opening or closing) of the regulatory body of the executive mechanism P.

Suppose that in the frequency spectrum of a tape recorder, a high signal is abruptly wilted, the latter causes the formation of a high pneumatic signal. Then, in chamber 8a, the pressure will be greater than in chamber 86 where the air enters through the pneumatic resistance 13. Therefore, moving the diaphragm unit down, closes the outlet to the atmosphere of this relay — the line is supplied to the pneumatic valve 10 (having its own power), from where the pipeline with a large cross-section enters the above-membrane cavity of the actuator 11. Mechanism 11 opens quickly, since water is discharged through the fountain nozzles quickly.

As soon as the transient regime passes (in seconds), pressure in chambers a and 6 pneumorela 8 is balanced. Since the upward force is the sum of the spring force and the pressure in chamber 86, the pneumatic feeding nozzle 8 is closed and the nozzle inside the spring chamber opens. The pressure from the line is instantly released into the atmosphere through a nozzle.

Under the reverse action — a sudden decrease in pressure in chamber 76 of pneumorel 7 from chamber 7a does not have time to relieve pressure due to the presence of pneumatic resistance 12. Therefore, the membrane unit of pneumorel 7 moves downwards, as a result of which a control signal is removed from pneumatic valve 9. In the chamber of the actuator 11, the air is instantaneously discharged to the atmosphere through a nozzle (outlet nozzle diameter 15 mm). At this moment, the pressures in chambers 7a and 76 are balanced, the spring closes the feed nozzle and opens the exit nozzle to the atmosphere. The air is discharged from the line and the pneumatic valve 9 is closed again. The pressure of tracking the music remains only in the direct connection line of the actuator 11. At extreme values, i.e. with a sharp increase or decrease in sound, the operation of the pneumorel is repeated.

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Claims (1)

COLOR MUSIC FOUNTAIN CONTROL SYSTEM, containing an audio signal source, through series-connected filters and amplifiers connected to a voltage regulator with illuminators and to control the dynamics of water jets connected to actuators, characterized in that, in order to increase the efficiency of control of water jets and to simplify it during operation, each control unit for the dynamics of water jets contains an electro-pneumatic converter, pneumatic relays, pneumatic resistors and pneumatic valves, control The input entrances of which are connected to the first and fourth chambers of the first and second pneumatic relays, respectively, and the controlled inputs of the pneumatic valves are connected to the actuator, the output of the electro-pneumatic converter, with the second chamber of the first and third chambers of the second pneumatic relay, the second chamber of the second and third chambers of the first pneumatic relay connected through pneumatic resistance to the output of the electro-pneumatic converter. SU „„ 1212620> FIG. 1