CN2261133Y - Music-light electronic changer - Google Patents

Abstract

The utility model relates to a music-light electronic transducer which is suitable for stages, the arrangement of the light of dance halls and the matching decoration of acoustic apparatuses. A signal pickup and decomposition circuit is used for analyzing a music signal into a sound intensity, sound height and sound quality signal which can represent the details of music. A special digital circuit is used for processing the signal to produce a three-way square-wave signal of which the duty cycle is controlled by the sound height and a one-way square-wave signal of which the duty cycle is controlled by the sound quality. The three-way square-wave signal, the one-way square-wave signal and the sound intensity signal are used for controlling the direct current supply voltage and the chopped-wave duty ratio of rectified output in a main circuit through a triggering circuit. Thereby, a combined light with three primary colors can be mixed and matched to produce brightness. Color tones and color saturation are harmonious with the color light of sound intensity, sound height and sound quality.

Description

Music-light electronic changer

The utility model relates to a kind of electronic converter with colour lamplight performance music detail.

At present, the various music lighting fixtures on the stage have strengthened the expressive force of music to a certain extent, and along with the difference of music atmosphere, the color of light, power and flicker rhythm also change. Yet the deficiency that their ubiquity lighting effects and music effect can not be unified to be integrated, the color of usually just setting order be loudness of a sound control light intensity in addition alternately or simply, music rhythm control flicker rhythm. In a word, music detail can not be showed fully by light.

The purpose of this utility model is: a kind of music-light electronic changer is provided, can with musical sound three elements (loudness of a sound, pitch, tone color)-control synchronously accordingly coloured light three elements (being brightness, tone, color saturation) thus reach the height the acousto-optic combination, whole of audiovisual.

The purpose of this utility model is achieved in that

According to following principle:

Music theory is thought: musical sound has three elements-loudness of a sound, pitch, tone color. Loudness of a sound refers to the power of sound, is determined by the musical sound amplitude; Pitch refers to the height of sound, is determined by the musical sound fundamental frequency; Tone color refers to the characteristic quality of sound, is determined by the musical sound overtone. Pitch is divided into 12 sound level: C, #C, D, #D, E, F, #F, G, #G, A, #A, B in a pure octave. The frequency ratio of two adjacent sound levels is definite value 2 arbitrarily^1/12, after pure octave of arbitrary sound level rising (or reduction), its frequency increases (or minimizing) a times.

The colorimetry theory is thought: coloured light has three elements-brightness, tone, color saturation. Brightness refers to the light and shade vision degree of the caused human eye of coloured light, is determined by light intensity; Tone refers to the color of light, is determined by light frequency; Color saturation refers to the gradation of color of light, by how many decisions of white light composition in the coloured light. The principle of three primary colours thinks that various colouramas can be mixed by the three kinds of according to a certain percentage additions of primary lights (or subtracting each other) that are mutually independent and form; Two kinds of primary colours additions blend together heavy shade, and three kinds of primary colours additions can get nonsaturated color. Eye storage characteristic according to human eye, its colour mixture mode can adopt the time type additive colour mixing method: be about to three kinds of (or two kinds) coloured light and shine in turn with speed in sequence, three primary colours generally adopt RGB, and (International Commission on Illumination's provision wavelengths is respectively 7000 , 5461 , 4358 ).

According to above-mentioned principle design of the present utility model be: color light source adopts three primary colours Assembled lamp (being that three kinds of primary colours lamps of red, green, blue and the white lamps that brightness equates is co-located in the lampshade), the music signal picks up by signal and the decomposition circuit unit, input special-purpose digital circuit unit and circuits for triggering unit, drive the main circuit cell operation, the variation of control color light source. Signal picks up and the decomposition circuit unit is mature technology, and it goes out to represent the loudness of a sound A (analog signal) of details, pitch F (fundamental frequency square wave), tone color D with the music signal resolution₃D ₂D ₁D ₀(overtone data signal); The circuits for triggering unit also is mature technology, adopts the automatic controlling type unijunction transistor of pilot angle to trigger (IGCT) circuit and photoelectric coupling circuit triggering (power transistor or power field effect pipe) circuit; The main circuit unit adopts the rectification of IGCT single-phase bridge half control; current-limiting reactor adds the flat ripple of capacitor in parallel; rectification (two utmost points) pipe afterflow and power transistor (or power field effect pipe) chopper circuit; its main electronic component and annexation are: two IGCTs and two rectifications (two utmost points) pipe are connected into halbgesteuerte Gleichrichterbrueckenschaltung; the RC protection respectively in parallel of these two IGCTs; negative electrode is connected together as the positive pole of rectification output; gate pole is connected together as trigger end; use again the negative pole of a rectification (two utmost points) pipe; the anodal positive pole that connects respectively rectification output, negative pole. One utmost point of rectification output connects an end of a reactor, the other end of reactor connects an end of a capacitor, and as the utmost point of flat ripple output, the other end of capacitor connects another utmost point of rectification output, and as another utmost point of flat ripple output, the negative pole of flat ripple output connects the emitter stage (or negative electrode) of four power transistors (or power field effect pipe), the colelctor electrode (or anode) of these four power transistors (or power field effect pipe) connects respectively in the three primary colours Assembled lamp red, green, blue, one end of white four colored lights, the other end of four colored lights is received the positive pole of flat ripple output jointly, and the base stage (or grid) of these four power transistors (or power field effect pipe) is as four control ends; Special-purpose digital circuit unit arranges 16 outward by end: four pulse output end Q₀Q ₁Q ₂Q ₃, four overtone data input pin D₃D ₂D ₁D ₀, fundamental frequency square wave input end F, timer clock input T, automatically/and sound control end of convert T/F, the keyed end L that turns off the light, white light keyed end H, coloured light keyed end S ,+5V power end Vcc, earth terminal GND; This unit is by 2 two tetrad counters (74LS393), 2 tablets of four figures are according to comparator (74LS85), 2 two JK flip-flops (74LS73A), 1 eight bit data latch (74LS273), 1 555 time base circuit, 12 not gates, 4 the 2 positive NAND gates of input, 12 the 2 positive nor gates of input, 6 the 3 positive nor gates of input, 5 the 4 positive nor gates of input and 1 positive nor gate of 4 inputs with the gating end are set up and are formed. Above-mentioned basic logical gate is except the positive NAND gates of two not gates and two 2 input require for other purposes, remaining be used for realizing three logic controllers: the signal gating device, pulsqe distributor and timing controller, concrete annexation realizes by following logical formula (not abbreviation). The output CK of signal gating device and input A₃, F, the logical formula of T/F is:

The output Q of pulsqe distributor₀Q ₁Q ₂Q ₃With input Q QB₀B ₁B ₂The logical relation of WLH is:

The output C of timing controller₀C ₁C ₂With input T/F, S, N, E, A₀A ₁A ₂A ₃Logical relation be:

(＂ in the following formula and ＂ concern the gating end realization of the positive nor gate of 4 inputs of field band gating end)

The counting input end of first tetrad counter among two 74LS393 (two tetrad counter) is as timer clock input T, and its four figures is according to output A₀A ₁A ₂A ₃The corresponding input that connects respectively timing controller. A₃The corresponding input that connects the signal gating device, the counting input end of second tetrad counter connects the square wave output by 1 555 square-wave generator that is connected into, and its four figures is according to the corresponding first group of data input pin that connects every of two 74LS85 (four figures is according to comparator) of output; Two remaining tetrad counters are connected into an eight-digit binary number counter, and its counting input end meets the output CK of signal gating device, corresponding low seven the data inputs that connect 74LS273 (eight bit data latch) of its low seven data output; Senior Three position B in low seven data of 74LS273 output₂B ₁B ₀Be connected respectively to the corresponding input of pulsqe distributor, low four correspondences are connected to second group of data input pin of first 74LS85; " equating " signal output of first 74LS85 is through a non-clear terminal of receiving behind the door first trigger among two 74LS73A (two JK flip-flop), the trigger end of this trigger connects the highest order of second tetrad counter, and the output Q Q of this trigger receives respectively the corresponding input of pulsqe distributor; Second group of data input pin of second 74LS85 is as four overtone data input pin D₀D ₁D ₂D ₃Its ＂ equates that the output of ＂ signal is through a non-clear terminal of receiving behind the door second trigger among two 74LS73A, the highest order of second tetrad counter of triggering termination of this trigger, the reversed-phase output of this trigger are received the W end of pulsqe distributor; The output C of timing controller₀What connect 74LS273 latchs end, C₂The clear terminal that connects second tetrad counter and eight-digit binary number counter, C₁The clear terminal that connects the 3rd trigger among two 74LS73A; The 4th of eight-digit binary number counter output, 5 through receiving the trigger end of the 3rd trigger after one the 2 positive NAND gate of input, the reversed-phase output of this trigger is received the E end of timing controller, the 5th, 6 output of eight-digit binary number counter connects the N end of timing controller after the positive NAND gate through one 2 input; The J termination of above-mentioned three triggers+5V power supply, K holds ground connection.

The 16 pin dual inline types numeral chip that special-purpose digital circuit unit preferably is integrated into a slice special use by logic function and the annexation of above-mentioned chip.

The F termination of special-purpose digital circuit unit enters pitch signal F, four overtone data input pin D₀D ₁ D ₂D ₃Connect tone color signal (four overtone data), T holds external timing clock signal. L, H, S, T/F be as the external control end, four pulse output end Q₀Q ₁Q ₂Q ₃The control end that connects respectively four photoelectrical couplers in the circuits for triggering unit, the corresponding sky end processed of controlling four power transistors (or power field effect pipe) of red, green, blue, white four colored lights in the main circuit unit that connects of the trigger impulse output of four photoelectrical couplers; Loudness of a sound signal A receives the regulation and control end of unijunction transistor circuits for triggering in the circuits for triggering unit, and the trigger impulse output of unijunction transistor circuits for triggering connects the gate pole of two IGCTs in the main circuit unit.

As shown from the above technical solution: it is a kind of good entertainment equipment corresponding to the light variation that the utility model can make the music signal change careful, and the circuit theory science, structure optimization, and pure hardware is realized, is convenient to integrated.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is schematic block circuit diagram of the present utility model.

Fig. 2 is the circuit diagram of special-purpose digital circuit unit in the utility model.

Fig. 3 is the circuit diagram of main circuit unit and circuits for triggering unit in the utility model.

In Fig. 1, the part in the dotted line frame is that signal picks up and the decomposition circuit unit, is prior art, needn't describe in detail. It goes out loudness of a sound signal A with the music signal resolution, pitch signal F, tone color signal D₃D ₂D ₁ D ₀ F and D₃D ₂D ₁D ₀Receive special-purpose digital circuit unit, form dutycycle by special-purpose digital circuit unit and be subjected to respectively F and D₃D ₂D ₁D ₀The square-wave signal Q of regulation and control₀Q ₁Q ₂And Q₃, correspondence is received the control end of circuits for triggering unit, and loudness of a sound signal A directly connects the corresponding control end of circuits for triggering unit; The circuits for triggering unit sends four road start pulse signals, receives the corresponding trigger end of main circuit unit, the break-make of red, green, blue, Bai Si kind colored lights in the output control three primary colours Assembled lamp of main circuit unit.

In Fig. 2,1,2-74LS393,3-74LS273,4-NE555,5,6-74LS85,7,8-74LS73A; Three logic devices (in the dotted line frame) that basic logical gate forms: 9-signal gating device, 10-pulsqe distributor, 11-timing controller; Basic logical gate: 12-74LS02,13-74LS27,14-74L25,15-74LS00,16-74LS04

Do not mark in the concrete pinouts of basic logical gate, because in every chip a plurality of basic logical gates are arranged. Concrete pin is decided with the printed substrate wiring is convenient. The pin of other chip and annexation are drawn in the drawings. 16 external ends of this unit are :+5V power supply, earth terminal; Four overtone data input pin D₃D ₂D ₁D ₀ Four pulse output end Q₀Q ₁Q ₂Q ₃, the control end of same numeral in the corresponding connection layout 3; Fundamental frequency square wave input end F; Timer clock input T; Four external control ends: automatically/sound control end of convert T/F, the keyed end L that turns off the light, white light keyed end H, coloured light keyed end S.

The course of work of special-purpose digital circuit unit: be that 16 * 50Hz is so that the anti-phase 50Hz of being output as of output Q, the Q of first trigger and second trigger has guaranteed Q by 1 555 square-wave generator output frequency that is connected into₀Q ₁Q ₂Q ₃Be 50Hz; As long as L=1 just has Q₀＝Q ₁＝Q ₂=Q ₃=0; When L=0, as long as H=1 just has Q₀＝Q ₁＝Q ₂＝Q ₃=1 when L=H=0, if T/F=0, the pitch signal that the F termination enters is strobed; If the timer clock frequency of T end input is 24.480Hz, and when S=0, the output C of timing controller₀Be 1.530Hz, the frequency of getting so 12 sound levels (in an octave) sees Table 1 with the data that latch corresponding to 74LS273:

Table 1

Sound level	Frequency (Hz)	Data		Sound level	Frequency (Hz)	Data
										Binary system	The decimal system			Binary system	The decimal system
D	73.416	0110000	48	#G	103.826	1000100	68
								#D	77.782	0110011	51	A	110.000	1001000	72
E	82.407	0110110	54	#A	116.541	1001100	76
								F	87.307	0111001	57	B	123.470	1010000	80
#F	92.499	0111100	60	C	130.813	1010101	85
								G	97.999	1000000	64	#C	138.591	1011010	90

Such B₂B ₁B ₀Three groups of data only appear, so that Q, Q are distributed to Q by pulsqe distributor₀Q ₁ Q ₂In certain two, concrete corresponding relation sees Table 2:

Table 2

B 2B 1B 0	Q 0	Q 1	Q 2
				011	Q	Q	0
100	0	Q	Q
				101	Q	0	Q

Wherein the dutycycle sum perseverance of Q Q is 1, i.e. λ_Q+λ _Q =1 and λ _Q Be proportional to the low four figures certificate that 74LS273 latchs; Data value in the table 1 and the corresponding relation in the table 2 all are constant for five octaves that begin with above-mentioned octave. Q₃With Q₀Q ₁Q ₂Be independently, and be not subjected to T/F, the control of S, its dutycycle to be proportional to four overtone data values. When T/F=1, F end is under an embargo, generation be A₃Give the eight-digit binary number rolling counters forward, and the output C of timing controller₁＝N，C ₂= N， $C_0=\stackrel{\‾}{A_0{+A}_1+A_2+A_3},$ This is equivalent to F and increases continuously, and the data of eight-digit binary number counter were latched once every 1/1.530 second, and this counter is cleared and counting again when being high level to the 5th, 6 of its data. When S=1, Q₀Q ₁Q ₂With Q, the corresponding relation of Q and dutycycle are all locked gets off.

In Fig. 3, the part in the dotted line frame is the main circuit unit, and remainder is the circuits for triggering unit. The course of work of main circuit unit and circuits for triggering unit: the output signal Q of special-purpose digital circuit unit₀ Q ₁Q ₂Q ₃By the photoelectrical coupler T in the circuits for triggering unit₁₇-T ₂₀And power transistor (or power field effect pipe) K that corresponding control and red, green, blue, Bai Si kind colored lights (R, G, B, W) are in series₁-K ₄Break-make, thereby control the break-make of three kinds of primary colours lamps and white lamps. Because two kinds of primary colours lamps always wherein are break-make in turn, another primary colours lamp opens circuit simultaneously, and namely each constantly always has and only have a kind of primary colours lamp path; Again because the brightness of three kinds of primary colours lamps equate, so, the direct current in main circuit (power supply) voltage one regularly, three kinds of primary colours lamps are mixed out that brightness equates various satisfy close coloured light. Because Q₀Q ₁Q ₂Q ₃Dutycycle (decision mixed ratio) determined by F, thereby tone is changed with pitch is harmonious; The course of work by special-purpose digital circuit unit is known, the corresponding rule with tone of pitch: D-is red, the E-orange, F-is yellow, and G-is green, and A-is blue or green, B-is blue, other sound level (with above-mentioned sound level in same octave) corresponding tone between above-mentioned seven kinds of tones, required according to the music mode, can finely tune the frequency of timer clock and order pushes away front or postpones above-mentioned corresponding relation. Q₃The break-make of the white lamps of empty system and the break-make of three kinds of primary colours lamps are independently, can regulate the color saturation of various coloured light. Because Q₃Dutycycle and D₃D ₂D ₁D ₀Value be directly proportional, thereby the simpler and more honest color saturation of tone color is larger. 220 volts of civil powers are through T₁-T ₄The IGCT single phase full bridge semi controlled rectifier that forms, reactor T₆, electric capacity T₇Filtering forms R, G, B, the direct current supply voltage of W. Control IGCT T in the main circuit time delay of the trigger impulse that loudness of a sound signal A sends by control unijunction transistor (BT) circuits for triggering₁、T ₂The angle of flow, when A strengthened (or weakening), the angle of flow increased (or reducing), thereby made the approximate and linear ratio of A of direct current (power supply) voltage in the main circuit, i.e. coloured light brightness and loudness of a sound are approximately linear scale. The external end of this unit: the A termination enters loudness of a sound signal (analog signal), control end Q₀Q ₁ Q ₂Q ₃The corresponding pulse output end that connects special-purpose digital circuit unit (among Fig. 2) same numeral.

The wiring and shell: the utility model to the wiring and shell without specific (special) requirements, so do not provide wiring diagram and shell figure.

Claims (2)

1. music-light electronic changer, adopt the three primary colours Assembled lamp as color light source, the music signal picks up by signal and the decomposition circuit unit, input special-purpose digital circuit unit and circuits for triggering unit, drive the main circuit cell operation, the variation of control color light source, it is characterized in that: the main circuit unit adopts the rectification of IGCT single-phase bridge half control, current-limiting reactor adds the flat ripple of capacitor in parallel, rectification (two utmost points) pipe afterflow and power transistor (or power field effect pipe) chopper circuit, its main electronic component and annexation are; Two IGCTs and two rectifications (two utmost points) pipe are connected into halbgesteuerte Gleichrichterbrueckenschaltung, the negative electrode of IGCT is connected together as the positive pole of rectification output, gate pole is connected together as trigger end, one utmost point of rectification output connects an end of a reactor, the other end of reactor connects an end of a capacitor, and as the utmost point of flat ripple output, the other end of capacitor connects another utmost point of rectification output, and as another utmost point of flat ripple output, the negative pole of flat ripple output connects the emitter stage (or negative electrode) of four power transistors (or power field effect pipe), the colelctor electrode (or anode) of these four power transistors (or power field effect pipe) connects respectively in the three primary colours Assembled lamp red, green, blue, one end of white four colored lights, the other end of four colored lights is received the positive pole of flat ripple output jointly, and the base stage (or grid) of these four power transistors (or power field effect pipe) is as four control ends; Special-purpose digital circuit unit arranges 16 external ends: four pulse output end Q₀Q ₁Q ₂Q ₃, four overtone data input pin D₃D ₂D ₁D ₀, fundamental frequency square wave input end F, timer clock input T, automatically/and sound control end of convert T/F, the keyed end L that turns off the light, white light keyed end H, coloured light keyed end S ,+5V power end Vcc, earth terminal GND; This unit is by 2 two tetrad counters (74LS393), 2 tablets of four figures are according to comparator (74LS85), 2 two JK flip-flops (74LS73A), 1 555 time base circuit of 1 eight bit data latch (74LS273), 12 not gates, 4 the 2 positive NAND gates of input, 12 the 2 positive nor gates of input, 6 the 3 positive nor gates of input, 54 inputs positive nor gate and 1 are set up with the positive nor gate of 4 inputs of gating end and are formed above-mentioned basic logical gate except two not gates and two the 2 positive NAND gates of input require for other purposes, remaining be used for realizing three logic controllers--signal gating device, pulsqe distributor and timing controller, concrete annexation realizes by following logical formula (not abbreviation), the output CK of signal gating device and input A₃, F, the logical formula of T/F is:

The output Q of pulsqe distributor₀Q ₁Q ₂Q ₃With input Q QB₀B ₁B ₂The logical relation of WLH is:

The output C of timing controller₀C ₁C ₂With input T/F, S, N, E, A₀A ₁A ₂A ₃Logical relation be:

The counting input end of first tetrad counter among (＂ in the following formula and ＂ relation are realized by the gating end of inputting positive nor gate with 4 of gating end) two 74LS393 (two tetrad counter) is as timer clock input T, and its four figures is according to output A₀A ₁A ₂A ₃The corresponding input that connects respectively timing controller, A₃The corresponding input that connects the signal gating device, the counting input end of second tetrad counter connects the square wave output by 1 555 square-wave generator that is connected into, and its four figures is according to the corresponding first group of data input pin that connects every of two 74LS85 (four figures is according to comparator) of output; Two remaining tetrad counters are connected into an eight-digit binary number counter, and its counting input end meets the output CK of signal gating device, corresponding low seven the data inputs that connect 74LS273 (eight bit data latch) of its low seven data output; Senior Three position B in low seven data of 74LS273 output₂ B ₁B ₀Be connected respectively to the corresponding input of pulsqe distributor, low four correspondences are connected to second group of data input pin of first 74LS85; The ＂ of first 74LS85 equates that the output of ＂ signal is through a non-clear terminal of receiving behind the door first trigger among two 74LS73A (two JK flip-flop), the trigger end of this trigger connects the highest order of second tetrad counter, and the output Q Q of this trigger receives respectively the corresponding input of pulsqe distributor; Second group of data input pin of second 74LS85 is as four overtone data input pin D₀D ₁D ₂D ₃Its ＂ equates that the output of ＂ signal is through a non-clear terminal of receiving behind the door second trigger among two 74LS73A, the highest order of second tetrad counter of triggering termination of this trigger, the reversed-phase output of this trigger are received the W end of pulsqe distributor; The output C of timing controller₀What connect 74LS273 latchs end, C₂The clear terminal that connects second tetrad counter and eight-digit binary number counter, C₁The clear terminal that connects the 3rd trigger among two 74LS73A; The 4th of eight-digit binary number counter output, 5 through receiving the trigger end of the 3rd trigger after one the 2 positive NAND gate of input, the reversed-phase output of this trigger is received the E end of timing controller, the N end of timing controller is received in the 5th, 6 output of eight-digit binary number counter after the positive NAND gate through one 2 input; The J termination of above-mentioned three triggers+5V power supply, K holds ground connection.

2. according to right 1 described music-light electronic changer, it is characterized in that special-purpose digital circuit unit is integrated into the 16 pin dual inline types numeral chip of a slice special use by the concrete logic circuit described in the right 1 and external end.