CN106255274A

CN106255274A - LED drives dynamic control device and control method

Info

Publication number: CN106255274A
Application number: CN201610817160.4A
Authority: CN
Inventors: 丰俊; 陈雪; 邓青华; 易智勇; 赵云猛; 庄凯; 符玥
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2016-09-12
Filing date: 2016-09-12
Publication date: 2016-12-21

Abstract

The present invention provides a kind of LED to drive dynamic control device and control method, and device therein includes LED group, single-chip microcomputer and the driving module corresponding with LED group being made up of LED；Wherein, LED group is four groups, and the driving module corresponding with LED group is four, and single-chip microcomputer includes four groups of I/O mouths, and what often group I/O mouth was corresponding drives module to be connected by lead-in wire with one group of LED group and one；Carry out taking turns flow control to four groups of LED groups by single-chip microcomputer, and each moment only lights one group of LED group；Wherein, by driving module to be amplified by the electric current of the I/O mouth output of corresponding single-chip microcomputer, it is lit with corresponding LED group to drive.

Description

LED drives dynamic control device and control method

Technical field

The present invention relates to LED and control technical field, relate more particularly to a kind of LED and drive dynamic control device and controlling party Method.

Background technology

Economic society develop rapidly the powerful guarantee relying on the various energy.At present, energy shortage has become as restriction society The key factor of meeting economic development, therefore, while developing new forms of energy, how saving the energy is also an important act Arrange.

Whenever The night screen has hung down, city is interspersed colorful by various illuminator.It is reported, China is used for illuminator The energy account for that electric energy always consumes about 40%.LED's is universal, although reduces the power of illuminator, but how to ensure photograph On the premise of obvious results fruit, the power reducing illuminator further becomes problem demanding prompt solution.

Summary of the invention

In view of the above problems, it is an object of the invention to provide a kind of LED and drive dynamic control device and control method, with further Reduce the power of LED illumination System.

The LED that the present invention provides drives dynamic control device and includes: LED drives dynamic control device, including the LED being made up of LED Lamp group, single-chip microcomputer and the driving module corresponding with LED group；Wherein, LED group is four groups, the driving corresponding with LED group Module is four, and single-chip microcomputer includes four groups of I/O mouths, and what often group I/O mouth was corresponding drives module to pass through with one group of LED group and one Lead-in wire is connected；Carry out taking turns flow control to four groups of LED groups by single-chip microcomputer, and each moment only lights one group of LED group；Its In, by driving module to be amplified by the electric current of the I/O mouth output of corresponding single-chip microcomputer, to drive and corresponding LED group It is lit.

Furthermore it is preferred that structure be: often group LED group be made up of 8 LED.

Furthermore it is preferred that structure be: single-chip microcomputer is STC89C52 single-chip microcomputer.

Furthermore it is preferred that structure be: often group I/O mouth formed by 8 single-chip microcomputer pins.

On the other hand, the present invention provides a kind of LED to drive control method, including:

By corresponding LED group, the I/O mouth of single-chip microcomputer and driving module are attached of lead-in wire；

Four groups of LED groups are carried out taking turns flow control by single-chip microcomputer, and each moment only lights one group of LED group；And, pass through Module is driven to be amplified by the electric current of the I/O mouth output of corresponding single-chip microcomputer, to drive corresponding LED group to be lit.

The LED that the present invention provides drives dynamic control device and control method, is carried out four groups of LED groups in turn by single-chip microcomputer Control, and by driving module that the small area analysis that the I/O mouth of single-chip microcomputer exports is converted to big electric current, to drive corresponding LED Group is lit, and utilizes the visual persistence effect of human eye such that it is able to while ensureing illuminating effect, reduces LED further and shines The power of bright system, thus reach to save the purpose of the energy.

Accompanying drawing explanation

Fig. 1 is the structure chart that the LED according to the embodiment of the present invention drives dynamic control device.

Detailed description of the invention

Below with reference to accompanying drawing, the specific embodiment of the present invention is described in detail.

For describe in detail the present invention provide LED drive dynamic control device, Fig. 1 show according to embodiments of the present invention based on LED drives the structure of dynamic control device.

As it is shown in figure 1, the LED that the present invention provides drives the LED group that dynamic control device includes being made up of, single-chip microcomputer 2 LED And the driving module corresponding with LED group.Wherein, LED group is four groups, and respectively P0, P1, P2 and P3 is corresponding with LED group Driving module be four, respectively L1, L2, L3 and L4, single-chip microcomputer includes four groups of I/O mouths, respectively Y1, Y2, Y3 and Y4, often What group I/O mouth was corresponding drives module to be connected by lead-in wire with one group of LED group and one；In an example of the present invention, single Sheet machine 2 is STC89C52 type single-chip microcomputer, and often group I/O mouth is formed by 8 single-chip microcomputer pins, and often group LED group is by 8 LED Lamp forms.That is: 8 LED in P0 are connected with Y1 and L1 by lead-in wire, and 8 LED in P1 are by lead-in wire and Y2 and L2 phase Even, 8 LED in P2 are connected with Y3 and L3 by lead-in wire, and 8 LED in P3 are connected with Y4 and L4 by lead-in wire.

Carry out taking turns flow control to four groups of LED groups (P0, P1, P2, P3) by single-chip microcomputer 2, and each moment only lights one Group LED group.It should be noted that owing to the electric current of single-chip microcomputer is little, it is impossible to drive LED to be lit, accordingly, it would be desirable to add driving Circuit (i.e. driving module) drives LED by point.That is: by driving module to be turned by the small area analysis that the I/O mouth of single-chip microcomputer exports It is changed to big electric current (electric current of output is amplified), to drive corresponding LED group to be lit.

Additionally, the present invention also provide for a kind of utilize above-mentioned LED drive dynamic control device LED is driven control method, The following driving control process that the LED providing the present invention drives control method is described in detail.

The LED that the present invention provides drives the driving control process of dynamic control device:

1, by corresponding LED group, the I/O mouth of single-chip microcomputer and driving module are attached of lead-in wire；

2, four groups of LED groups are carried out taking turns flow control by single-chip microcomputer, and each moment only allows one group of LED group to be lit.

3, by driving module to be amplified by the electric current that the I/O mouth of single-chip microcomputer exports, to drive corresponding LED group quilt Light.

Wherein, the control process of single-chip microcomputer is: carries out four groups of LED groups successively taking turns flow control, and arranges and often organize LED The lighting time of group, within the lighting time arranged, only one group LED group is lit, and its excess-three group LED group is in not Bright state.

In an example of the present invention, can carry out taking turns flow control, to guarantee to four groups of LED groups by following program Within the lighting time arranged, only one group LED group is lit.This program is as follows:

By above-mentioned, the LED that the present invention provides drives dynamic control device and control method, by utilizing the four of single-chip microcomputer Group I/O mouth, lights by driving module to drive four groups of LED groups in turn, utilizes the visual persistence effect of human eye, produce The effect that four groups of LED groups are lighted simultaneously, thus while ensureing illuminating effect, reach to save further the purpose of the energy.

Describe the LED according to the present invention above with reference to accompanying drawing in an illustrative manner and drive dynamic control device and control method. It will be understood by those skilled in the art, however, that the LED proposed for the invention described above drives dynamic control device and control method, Various improvement can also be made on the basis of without departing from present invention.Therefore, protection scope of the present invention should be by appended The content of claims determine.

Claims

1. LED drives a dynamic control device, including the LED group being made up of LED, it is characterised in that also include single-chip microcomputer and The driving module corresponding with described LED group；Wherein,

Described LED group is four groups, and the driving module corresponding with described LED group is four, and described single-chip microcomputer includes four groups of I/O Mouthful, what often group I/O mouth was corresponding drives module to be connected by lead-in wire with one group of LED group and one；

Carry out taking turns flow control to four groups of LED groups by described single-chip microcomputer, and each moment only lights one group of LED group；Wherein,

By described driving module, the electric current of the I/O mouth output of corresponding single-chip microcomputer is amplified, to drive and corresponding LED Lamp group is lit.

2. LED drives dynamic control device as claimed in claim 1, it is characterised in that

Often group LED group is made up of 8 LED.

3. LED as claimed in claim 1 drives dynamic control device, it is characterised in that

Described single-chip microcomputer is STC89C52 single-chip microcomputer.

4. LED as claimed in claim 1 drives dynamic control device, it is characterised in that

Often group I/O mouth is formed by 8 single-chip microcomputer pins.

5. LED drives a control method, utilizes the LED as described in any one in claims 1 to 3 to drive dynamic control device and enters Row LED drives, and the method includes:

By corresponding described LED group, the I/O mouth of single-chip microcomputer and driving module are attached of lead-in wire；

Four groups of LED groups are carried out taking turns flow control by described single-chip microcomputer, and each moment only lights one group of LED group；And,

By driving module to be amplified by the electric current of the I/O mouth output of corresponding single-chip microcomputer, to drive corresponding LED group quilt Light.

6. LED as claimed in claim 5 drives control method, and wherein, the control process of described single-chip microcomputer is:

Four groups of LED groups carry out taking turns flow control successively, and the lighting time often organizing LED group is set；Wherein, light described In time, only one group LED group is lit, and its excess-three group LED group is in the state of not working.