CN202171940U

CN202171940U - Drum with rich varied light colors

Info

Publication number: CN202171940U
Application number: CN2011203001402U
Authority: CN
Inventors: 吴建澜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2012-03-21
Anticipated expiration: 2021-08-12

Abstract

A drum with rich varied light colors is provided with a sound pick-up, a programmable controller and color changing LED (light-emitting diode) luminous elements, wherein the sound pick-up is connected with an analog digital conversion input end of the programmable controller, the control pins of a single color changing LED luminous element are connected with the impulse signal output pins of the programmable controller, the built-in procedure of the programmable controller controls the color changing LED luminous elements to send out lights with different colors according to the height of the frequency of the sound signal sent by the sound pick-up, so that the light color given out by the drum changes with the change of the beating pitch, the variation of the light color is very rich, the change of the light color is tightly matched with the change of the music, thereby having strong artistic appeal.

Description

The drum that photochromic variation is abundant

Technical field

The utility model relates to the musical instrument field, relates in particular to the drum of band decorative lighting effect.

Background technology

The known drum that has decorative lighting effect is to change according to set formula to control illumination effect mostly at present, and photochromic variation is dull; Do not get in touch though the bulging lighting effects that can produce random variation of minority, photochromic variation have with bulging music of beaing, be not complementary, artistic appeal is not good enough.

The utility model content

The purpose of the utility model provides the abundant drum of a kind of photochromic variation, to strengthen bulging artistic appeal.

The utility model is achieved in that the drum that a kind of photochromic variation is abundant; Drum is equipped with acoustic pickup, Programmable Logic Controller and color-changed LED light-emitting component; Said acoustic pickup is connected with the analog to digital conversion input end of Programmable Logic Controller; Each bar control pin of single color-changed LED light-emitting component is connected with the pulse signal output pin of Programmable Logic Controller respectively; The frequency height of the sound signal that the plug-in of Programmable Logic Controller is sent here according to acoustic pickup carries out width modulation to the pulse signal of each bar pulse signal output pin output, makes the color-changed LED light-emitting component send the light of different colours.

The utility model has the advantages that: beat when bulging, drum sends photochromicly changes along with the variation of beaing pitch, and not only photochromic variation is very abundant, and photochromic variation closely cooperates with the music variation, has very strong artistic appeal.

Description of drawings

Fig. 1 is the circuit theory diagrams of the utility model embodiment one;

Fig. 2 is the circuit theory diagrams of the utility model embodiment two;

Fig. 3 is the circuit theory diagrams of the utility model embodiment three;

Fig. 4 is the circuit theory diagrams of the utility model embodiment four.

Embodiment

Embodiment one

Circuit theory according to the abundant drum of the described a kind of photochromic variation of the utility model is as shown in Figure 1, comprises the acoustic pickup 1, Programmable Logic Controller 2 and the color-changed LED light-emitting component 3 that are installed on the drum.Acoustic pickup 1 is connected with the analog to digital conversion input end A/D of Programmable Logic Controller 2.Between acoustic pickup 1 and Programmable Logic Controller 2, can set up amplifying circuit and shaping circuit.Programmable Logic Controller 2 is single-chip microcomputers.Color-changed LED light-emitting component 3 both can be the color-changed LED chip, also can be the color-changed LED luminotron.This color-changed LED light-emitting component is integrated with the led chip of red R, green G, three kinds of colors of blue B in an element, the chip of three kinds of colors is drawn a control pin respectively.Three control pins of single color-changed LED light-emitting component 3 are connected with the pulse signal output pin PWM1～PWM3 of Programmable Logic Controller 2 respectively through switch transistor T 1～T3.The frequency height of the sound signal that the plug-in of Programmable Logic Controller 2 is sent here according to acoustic pickup 1 carries out width modulation to the pulse signal of each bar pulse signal output pin PWM1～PWM3 output, makes color-changed LED light-emitting component 3 send the light of different colours.The pulse signal output pin PWM1～PWM3 of Programmable Logic Controller 2 both can be the dedicated PWM signal output pin of single-chip microcomputer, also can be that the general purpose I/O pin of single-chip microcomputer relies on software simulation to form.

Embodiment two

Referring to Fig. 2, present embodiment is cascaded a plurality of color-changed LED light-emitting component 3a～c on the basis of embodiment one, to strengthen luminance brightness.

Embodiment three

Referring to Fig. 3, present embodiment adopts the structure of multichannel output on the basis of embodiment one.Three pulse signal output pin PWM1 of Programmable Logic Controller 2～PWM3 control wherein one tunnel; Other three pulse signal output pin PWM4～PWM6 controls another road; Can also connect the more color-changed LED light-emitting component of multichannel by that analogy, each road color-changed LED light-emitting component can send the light of different colours separately.

Each road color-changed LED light-emitting component can also be cascaded a plurality of color-changed LED light-emitting components as Fig. 2.

Embodiment four

Referring to Fig. 4, the Programmable Logic Controller of present embodiment is made up of two single-chip microcomputer 2a, 2b, and the circuit connection structure of each single-chip microcomputer is identical with Fig. 1.By that analogy, can also adopt more single-chip microcomputer to constitute Programmable Logic Controller, each single-chip microcomputer connects color-changed LED light-emitting component separately respectively.Each single-chip microcomputer can also adopt the structure of a plurality of color-changed LED light-emitting component series connection shown in Figure 2, and the structure of multichannel shown in Figure 3 output.

Claims

1. the drum that photochromic variation is abundant; It is characterized in that: drum is equipped with acoustic pickup, Programmable Logic Controller and color-changed LED light-emitting component; Said acoustic pickup is connected with the analog to digital conversion input end of Programmable Logic Controller; Each bar control pin of single color-changed LED light-emitting component is connected with the pulse signal output pin of Programmable Logic Controller respectively; The frequency height of the sound signal that the plug-in of Programmable Logic Controller is sent here according to acoustic pickup carries out width modulation to the pulse signal of each bar pulse signal output pin output, makes the color-changed LED light-emitting component send the light of different colours.