CN214014575U

CN214014575U - Automatic stage lighting change system

Info

Publication number: CN214014575U
Application number: CN202120189534.9U
Authority: CN
Inventors: 查丛辰; 朱雪萍; 吴俊华; 金玉龙
Original assignee: Suzhou Industrial Park Shanglian Advertising Public Relations Co ltd
Current assignee: Suzhou Industrial Park Shanglian Advertising Public Relations Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-08-20
Anticipated expiration: 2031-01-23

Abstract

The application relates to the field of stage lighting control, in particular to an automatic stage lighting change system which comprises a cabinet body, wherein the cabinet body is hollow, the upper end of the cabinet body is provided with an opening, the bottom of the cabinet body is vertically provided with an air cylinder, the top end of a piston rod of the air cylinder is fixedly provided with a display stand, and a life tree is fixedly arranged on the display stand; the voice detection circuit also comprises a power supply DC, a temperature switch circuit, a lighting circuit, a voice detection circuit and a control circuit; the lighting circuit comprises a plurality of Light Emitting Diodes (LEDs) which are connected in parallel, and the temperature switch circuit is conducted when detecting that the temperature is reduced, so that the LEDs in the lighting circuit are lightened; the sound detection circuit can detect the sound intensity of the external environment and output a detection signal, and the control circuit is connected with the detection signal and outputs an adjusting signal to adjust the brightness of the light emitting diode LED. This application has the light that makes dry ice elevating platform can realize the effect to the sound response.

Description

Automatic stage lighting change system

Technical Field

The application relates to the field of stage lighting control, in particular to an automatic stage lighting change system.

Background

At present, in stage activities of some enterprises, assistance of lighting is often required to understand the atmosphere on site. In stage activities, it is common to use a dry ice starting station. A general dry ice starting station includes a cabinet, a lifting body, and a driving device controlling the lifting or descending of the lifting body. The general lifting body is tree-shaped, and a plurality of LED lamps are arranged on the lifting body. When the dry ice is poured into the cabinet body, the LED lamps on the lifting body can be lightened to enable the tree-shaped lifting body to be green, and the moral enterprise can show powerful vitality under continuous efforts.

However, the dry ice lifting platform can only realize the function, cannot realize the response of lamplight to sound, and has limited atmosphere movement to the stage scene.

In view of the above-described related art, the inventors considered that there was a drawback that the light of the dry ice lifting table could not achieve a response to sound.

SUMMERY OF THE UTILITY MODEL

In order to make the light of dry ice elevating platform can realize the response to sound, this application provides a stage lighting automatic change system.

The application provides a stage lighting automatic change system adopts following technical scheme:

an automatic stage lighting change system comprises a cabinet body, wherein the cabinet body is hollow, the upper end of the cabinet body is provided with an opening, an air cylinder is vertically arranged at the inner bottom of the cabinet body, a display stand is fixedly arranged at the top end of a piston rod of the air cylinder, and a life tree is fixedly arranged on the display stand; further comprising:

a power supply DC for supplying a voltage;

a sound detection circuit connected to the power supply DC, detecting the magnitude of the external environment sound and outputting a detection signal;

the control circuit is connected with the sound detection circuit, receives the detection signal of the sound detection circuit and outputs an adjusting signal;

the lighting circuit is connected with the temperature switch circuit and the control circuit; the lighting circuit comprises a plurality of Light Emitting Diodes (LEDs) which are in parallel connection, and the LEDs are all arranged on the life tree; the Light Emitting Diode (LED) responds to the adjusting signal to realize the change of the brightness;

and the temperature switch circuit is connected with the power supply DC, and realizes the conduction of the power supply loop where the lamp circuit is positioned when the external temperature is reduced.

By adopting the technical scheme, the air cylinder is started to lift the display platform upwards, when the dry ice is poured into the cabinet body, the dry ice is gasified to cause the temperature in the cabinet body to be reduced, the temperature switch circuit outputs a lighting signal, and the light emitting diode LED in the lighting circuit is lighted, so that the life tree is lighted; the sound detection circuit can detect the sound size of external environment, then can export detected signal to control circuit, and control circuit output adjustment signal is with the luminance change of the emitting diode LED in the control lighting circuit, and emitting diode LED's luminance can change along with the change of external environment sound size in the lighting circuit, has strengthened the variety of life tree function, the stage atmosphere of the mediation that can be fine.

Optionally, the power supply DC is a storage battery, and the storage battery is fixedly arranged on the bottom surface of the cabinet body.

Through adopting above-mentioned technical scheme, power DC is the battery and locates the inside bottom surface of the cabinet body, and battery portable and removal have strengthened the convenience and the practicality of the cabinet body.

Optionally, the temperature switch circuit includes a temperature-sensing resistor R1, and the temperature-sensing resistor R1 is connected in series in a power supply loop in which the lighting circuit is located.

By adopting the technical scheme, at room temperature, the resistance value of the temperature-sensitive resistor R1 is large, so that weak current passes through the lighting circuit, and the light-emitting diode LED does not emit light; when dry ice is added, the temperature in the cabinet body is reduced, the resistance value of the temperature-sensitive resistor R1 is reduced at low temperature, so that the current passing through the temperature-sensitive resistor R1 is increased, then the light circuit is conducted, and the light-emitting diode LED emits light.

Optionally, the sound detection circuit includes a microphone amplifier M1, a capacitor C1, a first NPN transistor, a first resistor R2, a second resistor R3, and a third resistor R4; one end of the microphone amplifier M1 is connected to one end of the first resistor R2, the other end of the first resistor R2 is connected to the end of the temperature-sensitive resistor R1 which is not connected to the power supply DC, and the other end of the microphone amplifier M1 is grounded; one end of the capacitor C1 is connected with the ungrounded end of the microphone amplifier M1, and the other end of the capacitor C1 is connected with one end of the second resistor R3; the other end of the second resistor R3 is connected to the connection point of the first resistor R2 and the temperature-sensing resistor R1, the base of the first NPN triode VT1 is connected to the connection point of the capacitor C1 and the second resistor R3, and the emitter of the first NPN triode VT1 is grounded; one end of the third resistor R4 is connected to the collector of the first NPN transistor VT1, and the other end of the third resistor R4 is connected to the connection point of the second resistor R3 and the temperature-sensitive resistor R1.

By adopting the technical scheme, the base electrode of the first NPN triode VT1 is connected with a high level and can be conducted, the microphone amplifier M1 can convert an external sound signal into a fluctuating electric signal, and the fluctuating electric signal can be coupled to the base electrode of the first NPN triode VT1 through the capacitor C1 to be amplified so as to convert the sound signal into an electric signal.

Optionally, the control circuit includes a second NPN transistor VT2, a base of the second NPN transistor VT2 is connected to a connection point of the third resistor R4 and an emitter of the first NPN transistor VT1, an emitter of the second NPN transistor VT2 is grounded, and a collector of the second NPN transistor VT2 is connected to a power supply loop where the lighting circuit is located.

By adopting the technical scheme, the base electrode of the second NPN triode VT2 is high level and can be conducted, so that the lamplight circuit can be conducted, when the collector current of the first NPN triode VT2 is increased, the base electrode current of the second NPN triode VT2 is increased, so that the collector current of the second NPN triode VT2 is increased, namely, the current passing through the lamplight circuit is increased, and the brightness of the light-emitting diode LED is improved.

Optionally, the lateral wall of show stand has set firmly the guide block, has seted up vertical guide way on the inside wall of the cabinet body, guide block and guide way sliding fit.

Through adopting above-mentioned technical scheme, when the show stand removed at the internal portion of cabinet under the promotion of cylinder, the guide block makes the show stand can remain stable with the cabinet body with the guide way cooperation, has promoted the stability of show stand.

Optionally, the life tree includes two half shells made of the same transparent material, edges of the two half shells can be attached and fixed to each other, and the plurality of light emitting diodes LEDs are arranged on an inner wall of one of the half shells from bottom to top.

Through adopting above-mentioned technical scheme, translucent casing can the printing opacity, and LED locates half the inside of casing simultaneously, and when two half casing edge fixed laminating, can play the effect of protection to emitting diode LED.

Optionally, a plurality of wheels are fixedly arranged at the bottom of the cabinet body.

Through adopting above-mentioned technical scheme, the bottom of the cabinet body is equipped with the wheel, and the dry ice elevating platform of being convenient for removes to make the dry ice elevating platform can alternate the position on the stage, improved the convenience of in-service use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. starting the air cylinder to lift the display platform upwards, when the dry ice is poured into the cabinet body, the dry ice is gasified to cause the temperature in the cabinet body to be reduced, the temperature switch circuit outputs a lighting signal, and a Light Emitting Diode (LED) in the circuit of the lighting is lighted to enable the life tree to be lighted; the sound detection circuit can detect the sound of the external environment and then can output a detection signal to the control circuit, the control circuit outputs an adjustment signal to control the brightness change of the Light Emitting Diode (LED) in the lighting circuit, the brightness of the LED in the lighting circuit can be changed along with the change of the sound of the external environment, the diversity of the life tree function is enhanced, and the stage atmosphere can be well adjusted;

2. the show stand is under the promotion of cylinder when the internal portion of cabinet removes, and the guide block makes the show stand can keep stable with the cabinet body with the guide way cooperation, has promoted the stability of show stand.

Drawings

FIG. 1 is a general schematic view of a cabinet according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a circuit in an embodiment of the present application;

fig. 3 is a sectional view of a cabinet in an embodiment of the present application.

Description of reference numerals: 1. a cabinet body; 11. a cylinder; 12. a guide groove; 2. a display stand; 21. a guide block; 3. a life tree; 31. a half shell; 4. a wheel; 5. a temperature switch circuit; 6. a light circuit 7 and a sound detection circuit; 8. a control circuit.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses an automatic stage lighting changing system, which comprises a cabinet body 1 with a hollow interior and an opening at the top end, wherein vertical air cylinders 11 are fixedly arranged on the bottom surface of the interior of the cabinet body 1, and two groups of air cylinders 11 are arranged; one end of a piston rod of the air cylinder 11 faces upwards; a horizontal display stand 2 is welded at the top end of a piston rod of the cylinder 11, and a life tree 3 is bonded on the display stand 2; the intelligent temperature control device further comprises a power supply DC, a temperature switch circuit 5, a lighting circuit 6, a sound detection circuit 7 and a control circuit 8.

Referring to fig. 1 and 2, the light circuit 6 includes a plurality of light emitting diodes LED connected in parallel, and anodes of the light emitting diodes LED are connected to the signal output terminal of the temperature switching circuit 5. The temperature switch circuit 5 includes a positive temperature coefficient temperature-sensitive resistor R1; one end of the temperature-sensitive resistor R1 is connected to the positive electrode of the power supply DC, and the other end of the temperature-sensitive resistor R1 is connected to the anode of the light-emitting diode LED. When the dry ice is poured into the cabinet body 1, the dry ice is gasified to absorb heat so as to reduce the temperature in the cabinet body 1, the resistance value of the temperature sensing resistor R1 is reduced, the current passes through the temperature sensing resistor R1, and the light circuit 6 can be conducted at the moment.

Referring to fig. 2, the sound detection circuit includes a microphone amplifier M1, a capacitor C1, a first NPN transistor, a first resistor R2, a second resistor R3, and a third resistor R4; one end of the microphone amplifier M1 is connected to one end of the first resistor R2, the other end of the first resistor R2 is connected to the end of the temperature-sensitive resistor R1 which is not connected to the power supply DC, and the other end of the microphone amplifier M1 is grounded; one end of the capacitor C1 is connected with the ungrounded end of the microphone amplifier M1, and the other end of the capacitor C1 is connected with one end of the second resistor R3; the other end of the second resistor R3 is connected to the connection point of the first resistor R2 and the temperature-sensing resistor R1, the base of the first NPN triode VT1 is connected to the connection point of the capacitor C1 and the second resistor R3, and the emitter of the first NPN triode VT1 is grounded; one end of the third resistor R4 is connected to the collector of the first NPN transistor VT1, and the other end of the third resistor R4 is connected to the connection point of the second resistor R3 and the temperature-sensitive resistor R1.

When the temperature switch circuit 5 is turned on, the base of the first NPN transistor VT1 is connected to the second resistor R3 and is at a high level, and the first NPN transistor VT1 is turned on; the microphone amplifier M1 converts the sound signal of the external environment into an electrical signal, and the electrical signal is coupled to the base of the first NPN transistor VT1 via the capacitor C2 for amplification. When the sound of the external environment is increased, the electric signal generated by the microphone amplifier M1 is increased, that is, the current input to the base of the first NPN triode VT1 is increased, and the current at the collector of the first NPN triode VT1 is increased; the current between the collector and the emitter of the first NPN transistor VT1 is the detection signal.

Referring to fig. 2, the control circuit 8 includes a second NPN transistor VT2, a base of the second NPN transistor VT2 is connected to a connection point of the third resistor R4 and the emitter of the first NPN transistor VT1, an emitter of the second NPN transistor VT2 is grounded, and a cathode of the light emitting diode LED is connected to a collector of the second NPN transistor VT 2. When the temperature sensing resistor R1 is turned on, the voltage across the third resistor R4 just turns on the second NPN transistor VT 2.

When the collector current of the first NPN transistor VT1 increases, the current input to the second NPN transistor VT2 increases, so that the collector current of the second NPN transistor VT2 increases, and further the current passing through the light emitting diode LED increases, and the luminance of the light emitting diode LED increases. The collector-emitter current of the second NPN transistor VT2 is the adjustment signal.

Referring to fig. 1 and 3, the lateral wall of show stand 2 sets firmly with show stand 2 and integrated into one piece's guide block 21, has all seted up vertical guide way 12 on the inside relative both sides wall of show stand 2, the top of the top intercommunication cabinet body 1 lateral wall of guide way 12, guide block 21 and guide way 12 one-to-one and sliding fit. The life tree 3 comprises two half shells 31 made of the same acrylic material, and the edges of the two half shells 31 are fixedly bonded; the light emitting diode LED in the lighting circuit 6 is fixed inside one of the half shells 31 from bottom to top. The two half shells 31 form a life tree 3 with a cavity inside, and the life tree 3 is vertically adhered to the upper end surface of the display stand 2. Four wheels 4 are fixedly arranged at the bottom of the cabinet body 1, and the wheels 4 are universal brake wheels.

The implementation principle of the stage lighting automatic change system in the embodiment of the application is as follows: the air cylinder 11 is started, a piston rod of the air cylinder 11 extends out to jack the display stand 2 upwards, and the life tree 3 is exposed out of the top end of the cabinet body 1. When dry ice is poured into the cabinet body 1, the dry ice is gasified to cause the temperature inside the cabinet body 1 to be reduced, the resistance value of the temperature-sensitive resistor R1 is reduced along with the reduction of the temperature, and the temperature-sensitive resistor R1 is conducted to pass through current; the base of the second NPN transistor VT2 is connected to one end of the third resistor R4 and the input is high, and the second NPN transistor VT2 is turned on, so that the light emitting diode LED in the lighting circuit 6 is turned on and the life tree 3 is illuminated.

The microphone amplifier M1 can convert external sound signals into electrical signals, the base of the first NPN transistor VT1 is connected to one end of the second resistor R3 and the input is high, and when the temperature-sensitive resistor R1 is turned on, the first NPN transistor VT1 is turned on. The intensity of the external sound is increased, the electric signal generated by the microphone amplifier M1 is increased, and the electric signal generated by the microphone amplifier M1 is coupled to the base of the first NPN triode VT1 through the capacitor C1 for amplification. The current at the collector of the first NPN transistor VT1 increases, that is, the current inputted to the base of the second NPN transistor VT2 increases, and the current at the collector of the second NPN transistor VT2 also increases, so that the current passing through the light emitting diode LED also increases, and the luminance of the light emitting diode LED increases. That is, the brightness of the light emitting diode LED is improved along with the increase of the external environment, and the brightness of the life tree 3 is improved along with the increase of the external environment sound, so that the functional diversity of the system is increased, and the atmosphere of the scene can be well adjusted.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a stage lighting automatic change system which characterized in that: the multifunctional wardrobe comprises a wardrobe body (1), wherein the wardrobe body (1) is hollow, the upper end of the wardrobe body is opened, an air cylinder (11) is vertically arranged at the inner bottom of the wardrobe body (1), a display table (2) is fixedly arranged at the top end of a piston rod of the air cylinder (11), and a life tree (3) is fixedly arranged on the display table (2); further comprising:

a power supply DC for supplying a voltage;

a sound detection circuit (7) connected to the power supply DC, detecting the magnitude of the external environmental sound and outputting a detection signal;

a control circuit (8) connected to the sound detection circuit (7) and receiving the detection signal of the sound detection circuit (7) and outputting an adjustment signal;

a lighting circuit (6) connected to the control circuit (8); the lighting circuit (6) comprises a plurality of Light Emitting Diodes (LEDs) which are connected in parallel, and the Light Emitting Diodes (LEDs) are all arranged on the life tree (3); the Light Emitting Diode (LED) responds to the adjusting signal to realize the change of the brightness;

and the temperature switch circuit (5) is connected with the power supply DC, and realizes the conduction of a power supply loop where the lamp circuit (6) is positioned when the external temperature is reduced.

2. A stage lighting automatic changing system according to claim 1, characterized in that: the power supply DC is a storage battery which is fixedly arranged on the bottom surface of the interior of the cabinet body (1).

3. A stage lighting automatic changing system according to claim 1, characterized in that: the temperature switch circuit (5) comprises a temperature-sensing resistor R1, and the temperature-sensing resistor R1 is connected in series in a power supply loop in which the lighting circuit (6) is located.

4. A stage lighting automatic changing system according to claim 3, characterized in that: the sound detection circuit (7) comprises a microphone amplifier M1, a capacitor C1, a first NPN triode, a first resistor R2, a second resistor R3 and a third resistor R4; one end of the microphone amplifier M1 is connected to one end of the first resistor R2, the other end of the first resistor R2 is connected to the end of the temperature-sensitive resistor R1 which is not connected to the power supply DC, and the other end of the microphone amplifier M1 is grounded; one end of the capacitor C1 is connected with the ungrounded end of the microphone amplifier M1, and the other end of the capacitor C1 is connected with one end of the second resistor R3; the other end of the second resistor R3 is connected to the connection point of the first resistor R2 and the temperature-sensing resistor R1, the base of the first NPN triode VT1 is connected to the connection point of the capacitor C1 and the second resistor R3, and the emitter of the first NPN triode VT1 is grounded; one end of the third resistor R4 is connected to the collector of the first NPN transistor VT1, and the other end of the third resistor R4 is connected to the connection point of the second resistor R3 and the temperature-sensitive resistor R1.

5. A stage lighting automatic changing system according to claim 4, characterized in that: the control circuit (8) comprises a second NPN triode VT2, the base electrode of the second NPN triode VT2 is connected with the connection point of the third resistor R4 and the emitter electrode of the first NPN triode VT1, the emitter electrode of the second NPN triode VT2 is grounded, and the collector electrode of the second NPN triode VT2 is connected with a power supply loop where the lighting circuit (6) is located.

6. A stage lighting automatic changing system according to claim 1, characterized in that: the lateral wall of show stand (2) has set firmly guide block (21), has seted up vertical guide way (12) on the inside wall of the cabinet body (1), guide block (21) and guide way (12) sliding fit.

7. A stage lighting automatic changing system according to claim 1, characterized in that: the life tree (3) comprises two half shells (31) made of the same transparent material, the edges of the two half shells (31) can be mutually attached and fixed, and a plurality of Light Emitting Diodes (LEDs) are arranged on the inner wall of one of the half shells (31) from bottom to top.

8. A stage lighting automatic changing system according to claim 1, characterized in that: the bottom of the cabinet body (1) is fixedly provided with a plurality of wheels (4).