阅读说明：本技术 一种led灯系统及其降低瞬时功率的led灯控制方法 (LED lamp system and LED lamp control method for reducing instantaneous power ) 是由 戴忠果 梁波 于 2021-08-13 设计创作，主要内容包括：本发明提供一种LED灯系统及其降低瞬时功率的LED灯控制方法,LED灯系统包括电源、LED控制器、数据线、预订数量个灯具及一信号线,每一灯具包括信号处理器及LED灯珠；所述降低瞬时功率的LED灯控制方法包括：S1：LED控制器通过数据线将亮度数据发送至每一灯具；S2：首个连接LED控制器的灯具接收灯具亮度数据后,由灯具的信号处理器输出PWM驱动信号驱动LED灯珠作业,当LED灯珠作业完成后,信号处理器输出PWM触发信号至后置位灯具；S3：后置位灯具接收到PWM触发信号后,由信号处理器输出PWM驱动信号驱动LED灯珠作业,当LED灯珠作业完成后,该当前灯具的信号处理器输出PWM触发信号至后置位灯具；S4：循环S3,直至最后一个灯具完成作业,循环至S1。(The invention provides an LED lamp system and an LED lamp control method for reducing instantaneous power thereof, wherein the LED lamp system comprises a power supply, an LED controller, a data line, a preset number of lamps and a signal line, and each lamp comprises a signal processor and an LED lamp bead; the LED lamp control method for reducing instantaneous power comprises the following steps: s1: the LED controller sends the brightness data to each lamp through the data line; s2: after the first lamp connected with the LED controller receives lamp brightness data, a signal processor of the lamp outputs a PWM driving signal to drive the LED lamp beads to operate, and after the LED lamp beads operate, the signal processor outputs a PWM triggering signal to a post-setting lamp; s3: after the rear set lamp receives the PWM trigger signal, the signal processor outputs a PWM driving signal to drive the LED lamp bead to operate, and after the LED lamp bead operation is finished, the signal processor of the front lamp outputs the PWM trigger signal to the rear set lamp; s4: loop S3 until the last fixture completes the job, loop to S1.)

1. An LED lamp system and an LED lamp control method for reducing instantaneous power thereof are characterized in that the LED lamp system comprises a power supply and an LED controller, a preset number of lamps of the LED controller are connected in series through a data line, the lamps are further connected in series through a signal line, each lamp comprises a signal processor and an LED lamp bead, and the LED lamp control method for reducing instantaneous power comprises the following steps:

s1: the LED controller sends brightness data of the control lamps to each lamp through a data line;

s2: after the first lamp connected with the LED controller receives the lamp brightness data, the signal processor of the current lamp outputs a PWM driving signal to drive the LED lamp bead to operate, and when the LED lamp bead operation is finished, the signal processor of the current lamp outputs a PWM triggering signal to the post-positioned lamp;

s3: after the rear set lamp receives the PWM trigger signal sent by the front set lamp, the signal processor of the current lamp outputs a PWM driving signal to drive the LED lamp bead to operate, and after the LED lamp bead operation is finished, the signal processor of the current lamp outputs the PWM trigger signal to the rear set lamp;

s4: loop S3 until the last fixture completes the job, loop to S1.

2. The LED lamp system and the LED lamp control method for reducing instantaneous power thereof as claimed in claim 1, wherein the step S1 specifically comprises the steps of:

s11: counting the number of lamps and recording as N;

s12: counting the total rated power W of the N lamps;

s13: setting the output power V of each lamp, and enabling V < (W/N);

s14: setting the operation duration Y of each lamp;

s15: counting the total operation time length T of the N lamps as a single period for controlling the operation of all the lamp beads;

s16: the controller outputs lamp brightness data, which includes a total operation time length T, an output power V of each lamp, and an operation time length Y of each lamp.

3. The LED lamp system and the LED lamp control method for reducing instantaneous power thereof as claimed in claim 2, wherein the signal processor of step S2 calculates the duty ratio Z of the current lamp in a single period T and then outputs the PWM driving signal, when receiving each of the lamp output power V, the total operating time period T and the current lamp operating time period Y.

4. The LED lamp system and its LED lamp control method for reducing instantaneous power of claim 2, wherein the data form of said lamp brightness data includes DMX512, SPI, I2C.

5. The LED lamp system and the LED lamp control method for reducing the instantaneous power thereof as claimed in claim 2, wherein the duty ratio Z of the PWM driving signal for driving the lamp is in the range of 0-1/N.

6. The LED lamp system and the LED lamp control method for reducing instantaneous power thereof as claimed in claim 5, wherein the lamp brightness level is divided into N gray levels.

7. The LED lamp system and the LED lamp control method for reducing instantaneous power thereof as claimed in claim 2, wherein the step S4 is specifically:

s41: loop S3;

s42: and (5) when the lamp control time reaches the total operation time T, circulating to the step 1.

Technical Field

The invention relates to an LED lamp system, in particular to an LED lamp system and an LED lamp control method for reducing instantaneous power thereof.

Background

When the existing LED system needs to perform dimming control on an LED lamp, an LED controller sends data for controlling the brightness of the lamp to the LED lamp, the controllers on the market send non-PWM signals, after the control signals are sent, all lamps of the LED system receive dimming signals at the same time and then start to emit light, and when all lamps operate at the same time, the working instantaneous power of the LED system reaches the highest.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an LED lamp system and an LED lamp control method for reducing instantaneous power thereof, which reduce the instantaneous power of the LED lamp system and further reduce the number of power supplies and the configuration requirements.

The invention provides an LED lamp system and an LED lamp control method for reducing instantaneous power thereof, wherein the LED lamp system comprises a power supply and an LED controller, a preset number of lamps of the LED controller are connected in series through a data line, the lamps are also connected in series through a signal line, each lamp comprises a signal processor and an LED lamp bead, and the LED lamp control method for reducing the instantaneous power comprises the following steps:

s1: the LED controller sends brightness data of the control lamps to each lamp through a data line; s2: after the first lamp connected with the LED controller receives the lamp brightness data, the signal processor of the current lamp outputs a PWM driving signal to drive the LED lamp bead to operate, and when the LED lamp bead operation is finished, the signal processor of the current lamp outputs a PWM triggering signal to the post-positioned lamp;

s3: after the rear set lamp receives the PWM trigger signal sent by the front set lamp, the signal processor of the current lamp outputs a PWM driving signal to drive the LED lamp bead to operate, and after the LED lamp bead operation is finished, the signal processor of the current lamp outputs the PWM trigger signal to the rear set lamp;

s4: and (8) looping to S3 until the last lamp finishes the operation, and looping to step S1.

Preferably, the step S1 specifically includes the following steps: s11: counting the number of lamps and recording as N; s12: counting the total rated power W of the N lamps; s13: setting the output power V of each lamp, and enabling V to be smaller than W/N; s14: setting the operation duration Y of each lamp; s15: counting the total operation time length T of the N lamps as a single period for controlling the operation of all the lamp beads; s16: the controller outputs lamp brightness data, which includes a total operation time length T, an output power V of each lamp, and an operation time length Y of each lamp.

Preferably, when the signal processor of step S2 receives each lamp output power V, the total operation duration T and the current lamp operation duration Y, the signal processor calculates the duty ratio Z of the current lamp in a single period T and then outputs the PWM driving signal.

Preferably, the data form of the lamp brightness data comprises DMX512, SPI, I2C.

Preferably, the duty ratio Z of the PWM driving signal for driving the lamp ranges from 0 to 1/N.

Preferably, the brightness level of the lamp is divided into N gray levels.

Preferably, step S4 specifically includes: s41: loop S3; s42: and (5) when the lamp control time reaches the total operation time T, circulating to the step 1.

The invention provides an LED lamp system and an LED lamp control method for reducing instantaneous power thereof, wherein a signal processor of a lamp generates a PWM driving signal to carry out self-driving operation, a PWM trigger signal for starting the operation is sent to a rear lamp after the current lamp self-driving operation is finished, the rear lamp starts the self-driving operation through the PWM trigger signal, the staggered lamp driving method can reduce the total instantaneous power of the LED lamp system, the total instantaneous power can be reduced to the rated power of the lamp, the manufacturing cost of the LED lamp system is reduced, meanwhile, the lamp driving is realized by the signal processor of the lamp, so the system can be adapted to different controllers, the controllers of different productions can be applied to the LED lamp system, and the universality of the LED lamp system can be improved.

Drawings

FIG. 1 is a schematic diagram of the construction of an LED lamp system provided by the present invention;

FIG. 2 is a schematic diagram of the output of the PWM driving signal and the PWM triggering signal provided by the present invention;

fig. 3 is a method for controlling an LED lamp with reduced instantaneous power according to the present invention.

Detailed Description

The LED lamp system and the LED lamp control method for reducing instantaneous power provided by the present invention are further described with reference to the accompanying drawings, and it should be noted that the technical solution and design principle of the present invention are described in detail with only one optimized technical solution.

Referring to fig. 1, in the embodiment, the LED lamp system provided by the present invention includes a power supply, an LED controller, and an LED lamp 1, an LED lamp 2, and an LED lamp 3 … … connected in series to the LED controller through a data line, wherein the lamps are further connected in series through a signal line, and each of the lamps includes a signal processor and an LED lamp bead.

Referring to fig. 3, the LED lamp control method for reducing instantaneous power provided by the present invention includes the following steps: s1: the LED controller sends brightness data of the control lamps to each lamp through a data line; s2: after the first lamp connected with the LED controller receives the lamp brightness data, the signal processor of the current lamp outputs a PWM driving signal to drive the LED lamp bead to operate, and when the LED lamp bead operation is finished, the signal processor of the current lamp outputs a PWM triggering signal to the post-positioned lamp;

s3: after the rear set lamp receives the PWM trigger signal sent by the front set lamp, the signal processor of the current lamp outputs a PWM driving signal to drive the LED lamp bead to operate, and after the LED lamp bead operation is finished, the signal processor of the current lamp outputs the PWM trigger signal to the rear set lamp; s4: loop S3, until the last lamp completes the operation, loop to step S1

Specifically, referring to fig. 1, fig. 2 and fig. 3, the LED lamp control method for reducing instantaneous power provided by the present invention is described in detail:

s1: with reference to fig. 1, the LED controller sends the luminance data of the control lamps to each of the lamps through the data line, that is, the LED controller sends the data to the LED lamp 1, the LED lamp 2, and the LED lamp 3 … …;

s2: with reference to fig. 2, in a first lamp control period PWM _ T1, after a lamp LED lamp 1 connected to the LED controller first receives the lamp luminance data, a signal processor of the current lamp LED lamp 1 outputs a PWM driving signal P1 to drive a lamp bead operation of the LED lamp 1, and after the lamp bead operation of the LED lamp 1 is completed, the signal processor of the current lamp LED lamp 1 outputs a trigger signal, that is, a PWM trigger signal P1', to a lamp LED lamp 2 set backward;

s3: after the rear set lamp LED lamp 2 receives the PWM trigger signal P1 'sent by the front set lamp LED lamp 1, the signal processor of the current lamp LED lamp 2 outputs a PWM drive signal P2 to drive the lamp bead operation of the LED lamp 2, and after the lamp bead operation of the LED lamp 2 is finished, the signal processor of the current lamp LED lamp 2 outputs a trigger signal, namely the PWM trigger signal P2' to the rear set lamp LED lamp 3;

s4: the subsequent lamp LED lamp 3 … … cycles the operation flow of setting the lamps in front until the last lamp completes the operation, and then cycles to step S1 to enter the second lamp period PWM _ T2 to continue to control the lamps of the LED lamp system.

Specifically, the controller in step S1 needs to set the data packet to be sent in advance, so step S1 may specifically be:

s11: counting the number of lamps and recording as N;

s12: counting the total rated power W of the N lamps;

s13: setting the output power V of each lamp, and enabling V to be smaller than W/N;

s14: setting the operation duration Y of each lamp;

s15: counting the total operation time length T of the N lamps as a single period for controlling the operation of all the lamp beads;

s16: the controller outputs lamp brightness data, which includes a total operation time length T, an output power V of each lamp, and an operation time length Y of each lamp.

Specifically, when the signal processor of step S2 receives the output power V of each lamp, the total operating time length T, and the current lamp operating time length Y, the signal processor calculates the duty ratio Z of the current lamp in a single period T and then outputs the PWM driving signal.

Specifically, step S4 specifically includes: s41: loop S3; s42: and (3) when the lamp control time reaches the total operation time T, circulating to the step 1, directly calculating the operation time of all the lamps by the LED controller without returning a signal to the LED lamp controller by the last lamp, and automatically starting the second lamp control period.

Preferably, the data form of the lamp brightness data comprises DMX512, SPI and I2C, and the system can be adapted to LED controllers with different specifications and has good universality.

Preferably, the range of the duty ratio Z of the PWM driving signal for driving the lamp is 0-1/N, the brightness level of the lamp is divided into N gray levels, the LED lamp controller can transmit data according to the brightness level of the lamp, the design efficiency of light control of designers is improved, meanwhile, more controllers are adapted, and the universality is improved.

In this embodiment, the signal processor is specifically a single chip, and the PWM driving signal and the trigger signal are output from different ports of the single chip.

In this embodiment, the refresh rate of the entire LED lamp system should be 100hz at the lowest, and only if the refresh rate is maintained above 100hz, the human eyes will not see the flicker, so each lamp needs to be turned on once within 10MS, and therefore, in the system provided by this embodiment, the lamp PWM trigger period T should be 10 MS/number of lamps, that is, the first lamp needs to be turned on for the second time after being turned on for 10 MS.

In the traditional LED lamp system, the lamps operate simultaneously, and if 10 lamps are provided, and the power of each lamp is 30W, the total instantaneous power of the LED lamp system reaches 300W when the LED lamp system performs dimming control, so that more lamps can cause the burden of a power supply, while the LED lamp control method for reducing the instantaneous power provided by the invention reduces the instantaneous power of the LED lamp system by using staggered operation, when 10 lamps need dimming, the total instantaneous power is only 30W at most, the number and the burden of the power supply are greatly reduced, and because the control of the LED lamp system and the operation time of the lamps are in millisecond level, the light effect is continuous after being received by eyes of people and cannot cause mountains, therefore, the control effect of the LED lamp system cannot be influenced by the malposition operation of the lamps, and therefore, the LED lamp system and the LED lamp control method for reducing the instantaneous power provided by the invention can reduce the design cost of the LED lamp, the LED lamp system pair has extremely high economic value for users or designers of the LED lamp system pair.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.