CN112074044B - Parallel LED lamp control system and control method - Google Patents
Parallel LED lamp control system and control method Download PDFInfo
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- CN112074044B CN112074044B CN202011091557.2A CN202011091557A CN112074044B CN 112074044 B CN112074044 B CN 112074044B CN 202011091557 A CN202011091557 A CN 202011091557A CN 112074044 B CN112074044 B CN 112074044B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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Abstract
The invention provides a parallel LED lamp control system and a control method, wherein the LED lamp control system comprises a main MCU (1), a plurality of switches (2), a plurality of LED lamps and a data line (5), the main MCU (1) is connected with the data line (5), each LED lamp comprises an MCU (3) and an LED lamp body (4) connected with the MCU (3), the switches (2) are respectively connected with the main MCU (1), and the single switches (2) are correspondingly connected with the single MCUs (3) one by one. The invention has the beneficial effects that: the parallel LED lamp control system and the control method solve the problem of single-wire coding of single-wire parallel control, adopt single-wire parallel control, enable the frequency to reach 3Mbps, and enable the control pixel to reach 1536.
Description
Technical Field
The invention relates to the field of lamps, in particular to a parallel LED lamp control system and a parallel LED lamp control method.
Background
In the prior art, 2 control modes exist for controlling an LED lamp, one is single-line control, but a special coding line is needed for coding, the control frequency is 250kbps, and the number of control points is 512; the second is two-wire parallel control, and can carry out coding through two wires, control the frequency of 250kbps and control the number of points of 512 (as shown in figure 1).
In summary, in the prior art, encoding and control of a plurality of LED lamps need one dedicated encoding line or are completed by two lines, which is troublesome in wiring and low in efficiency.
Disclosure of Invention
The invention provides a parallel LED lamp control system which comprises a main MCU, a plurality of switches, a plurality of LED lamps and a data line, wherein the main MCU is connected with the data line;
the main MCU: the MCU corresponding to the switch carries out self coding through the received coding signal instruction, and the coding is an address code written for the LED lamp; if the main MCU receives the control signal, the main MCU closes all the switches, and at the moment, all the LED lamps are controlled in parallel.
As a further improvement of the invention, the main MCU receives the coding signal and then issues a coding signal instruction, the first switch is closed first, the first MCU receives the coding signal instruction and then codes the first MCU, the closing time of the first switch is set, and then the first switch is disconnected; closing a second switch, receiving a coding signal instruction by a second MCU, coding the second MCU, closing the second switch for a set time, and then disconnecting the second switch; the method is adopted to code the following LED lamps in sequence until the MCU on the last LED lamp receives a coding signal instruction to complete the coding of the MCU.
As a further improvement of the invention, the set time is 200ms.
As a further improvement of the invention, the number of the switches, the MCU and the LED lamp bodies is 32 respectively.
The invention also discloses a parallel LED lamp control method, which comprises the following steps:
a signal receiving and judging step: the main MCU receives the signals and carries out ordered judgment according to the received signals, namely, whether the received signals are coding signals or control signals is judged;
and (3) encoding: after the main MCU receives the coding signals, the switches are controlled to be closed one by one through control, the MCU corresponding to the switches carries out self coding through the received coding signals, and the coding is used for writing address codes to the LED lamps;
a single-wire parallel control step: and after receiving the control signal, the main MCU closes all the switches, and realizes parallel control on all the LED lamps.
As a further improvement of the present invention, in the encoding step, specifically, the method includes:
the main MCU receives the coding signal and then issues a coding signal instruction, a first switch is closed, the first MCU receives the coding signal instruction and then codes the first MCU, the first switch is closed for a set time, and then the first switch is disconnected; closing a second switch, receiving a coding signal instruction by a second MCU, coding the second MCU, closing the second switch for a set time, and then disconnecting the second switch; and sequentially coding the subsequent LED lamps until the MCU on the last LED lamp receives a coding signal instruction to complete the coding of the MCU.
As a further improvement of the invention, the set time is 200ms.
The invention has the beneficial effects that: the parallel LED lamp control system and the control method solve the problem of single-wire coding of single-wire parallel control, adopt single-wire parallel control, and enable the frequency to reach 3Mbps and the control pixel to reach 1536.
Drawings
FIG. 1 is a functional block diagram of the background art;
fig. 2 is a schematic diagram of the structure of the LED lamp control system of the present invention.
Detailed Description
As shown in fig. 2, the invention discloses a parallel LED lamp control system, which includes a main MCU 1, a plurality of switches 2, a plurality of LED lamps, and a data line 5, wherein the main MCU 1 is connected to the data line 5, the LED lamps include an MCU 3 and LED lamp bodies 4 connected to the MCU 3, the plurality of switches 2 are respectively connected to the main MCU 1, and the single switches 2 are connected to the single MCUs 3 in a one-to-one correspondence.
The main MCU 1: the MCU 3 corresponding to the switch 2 carries out self coding through the received coding signal instruction, the coding is address code writing on the LED lamp, for example, the address code of the 1 st LED lamp is 1, the address code of the 2 nd LED lamp is 2, and the like until the address code of the last LED lamp is written; if the main MCU 1 receives a control signal, all the switches 2 are closed, and all the LED lamps are controlled in parallel.
The main MCU 1 receives the coding signal and then issues a coding signal instruction, the first switch 2 is closed, the first MCU 3 receives the coding signal instruction and then codes the first MCU, the first switch 2 is closed for a set time, and then the first switch 2 is disconnected; the second switch 2 is closed, the second MCU 3 codes the second MCU after receiving the coding signal instruction, the second switch 2 is closed for a set time, and then the second switch 2 is disconnected; and sequentially coding the following LED lamps until the MCU 3 on the last LED lamp receives a coding signal instruction to complete the coding of the LED lamps.
The set time is 200ms.
The number of the switches 2, the MCU 3 and the LED lamp bodies 4 is 32 respectively.
The invention completes the coding and control of a plurality of LED lamps through one data wire 5, and has the advantages of convenient wiring, rapid operation and high efficiency.
The invention also discloses a parallel LED lamp control method, which comprises the following steps:
a signal receiving and judging step: the main MCU 1 receives the signals, and carries out ordered judgment according to the received signals, and judges whether the received signals are coding signals or control signals.
And (3) encoding: after receiving the coding signals, the main MCU 1 controls the switches 2 to be closed one by one through control, the MCU 3 corresponding to the switches 2 carries out self coding through the received coding signals, and the coding is used for writing address codes for the LED lamps.
A single-wire parallel control step: after receiving the control signal, the main MCU 1 closes all the switches 2, and the main MCU 1 controls all the LED lamps in parallel.
In the encoding step, the method specifically includes:
the main MCU 1 receives the coding signal and then issues a coding signal instruction, the first switch 2 is closed, the first MCU 3 receives the coding signal instruction and then codes the first MCU, the first switch 2 is closed for a set time, and then the first switch 2 is disconnected; the second switch 2 is closed, the second MCU 3 codes the second MCU after receiving the coding signal instruction, the second switch 2 is closed for a set time, and then the second switch 2 is disconnected; and sequentially coding the following LED lamps until the MCU 3 on the last LED lamp receives a coding signal instruction to complete the coding of the LED lamps.
The set time is 200ms.
The invention has the beneficial effects that: the parallel LED lamp control system and the control method solve the problem of single-wire coding of single-wire parallel control, adopt single-wire parallel control, enable the frequency to reach 3Mbps, and enable the control pixel to reach 1536.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. The utility model provides a parallelly connected LED lamps and lanterns control system which characterized in that: the LED lamp comprises a main MCU (1), a plurality of switches (2), a plurality of LED lamps and a data line (5), wherein the main MCU (1) is connected with the data line (5), each LED lamp comprises an MCU (3) and an LED lamp body (4) connected with the MCU (3), the switches (2) are respectively connected with the main MCU (1), and the switches (2) are correspondingly connected with the MCUs (3);
the main MCU (1): the MCU (3) corresponding to the switch (2) carries out self coding through the received coding signal instruction, and the coding is used for writing an address code for the LED lamp; if the main MCU (1) receives the control signal, all the switches (2) are closed, and the main MCU (1) realizes parallel control on all the LED lamps;
the main MCU (1) receives the coding signal and then issues a coding signal instruction, the first switch (2) is closed, the first MCU (3) receives the coding signal instruction and then codes the MCU, the first switch (2) is closed for a set time, and then the first switch (2) is opened; the second switch (2) is closed, the second MCU (3) codes the second MCU after receiving the coding signal instruction, the second switch (2) is closed for a set time, and then the second switch (2) is opened; and sequentially coding the following LED lamps until the MCU (3) on the last LED lamp receives a coding signal instruction to complete the coding of the MCU.
2. The LED luminaire control system of claim 1 wherein the set time is 200ms.
3. The LED luminaire control system of claim 1, wherein: the number of the switches (2), the MCU (3) and the LED lamp bodies (4) is 32 respectively.
4. A parallel LED lamp control method is characterized by comprising the following steps:
a signal receiving and judging step: the main MCU (1) receives signals, carries out ordered judgment according to the received signals and judges whether the received signals are coding signals or control signals;
and (3) encoding: after the main MCU (1) receives the coding signals, the switches (2) are controlled to be closed one by one through control, the MCU (3) corresponding to the switches (2) carries out self coding through the received coding signals, and the coding is used for writing address codes on the LED lamp;
a single-wire parallel control step: after receiving the control signal, the main MCU (1) closes all the switches (2), and the main MCU (1) realizes parallel control on all the LED lamps;
in the encoding step, the method specifically includes:
the main MCU (1) receives the coding signal and then issues a coding signal command, the first switch (2) is closed, the first MCU (3) receives the coding signal command and then codes the MCU, the first switch (2) is closed for a set time, and then the first switch (2) is disconnected; the second switch (2) is closed, the second MCU (3) codes the second MCU after receiving the coding signal command, the second switch (2) is closed for a set time, and then the second switch (2) is disconnected; and sequentially coding the following LED lamps until the MCU (3) on the last LED lamp receives a coding signal instruction to complete the coding of the MCU.
5. The LED lamp control method according to claim 4, wherein: the set time is 200ms.
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| CN114245516A (en) * | 2021-11-09 | 2022-03-25 | 深圳市裕铭数智装备科技有限公司 | Control system of LED lamp |
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| TW200950578A (en) * | 2008-05-23 | 2009-12-01 | Semisilicon Technology Corp | Parallel-type single-line addressing lamp apparatus |
| EP3593597B1 (en) * | 2017-03-09 | 2021-05-12 | Signify Holding B.V. | Device, system, and method for determining an address of a component arranged in a structure |
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| CN101222806A (en) * | 2008-01-16 | 2008-07-16 | 上海高智机器人新技术合作公司 | Method and device for automatically controlling lamps |
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