CN203313465U - LED illumination PWM drive wireless expansion apparatus - Google Patents
LED illumination PWM drive wireless expansion apparatus Download PDFInfo
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- CN203313465U CN203313465U CN2013202489206U CN201320248920U CN203313465U CN 203313465 U CN203313465 U CN 203313465U CN 2013202489206 U CN2013202489206 U CN 2013202489206U CN 201320248920 U CN201320248920 U CN 201320248920U CN 203313465 U CN203313465 U CN 203313465U
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- pwm
- chip microcomputer
- led illumination
- transmitting terminal
- receiving terminal
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Abstract
The utility model discloses an LED illumination PWM drive wireless expansion apparatus, which comprises sending terminals and receiving terminals. Each sending terminal comprises an optoelectronic isolation unit, a single-chip microcomputer processing unit and a wireless communication module. A single-chip microcomputer of the single-chip microcomputer processing unit achieves a PWM pulse signal duty ratio and period detection function. Each receiving terminal comprises a wireless communication module, a single-chip microcomputer processing unit and a PWM signal power output driving unit. A single-chip microcomputer of the single-chip microcomputer processing unit achieves a PWM pulse signal regenerating function. The frequency points of the sending terminals and the receiving terminals are consistent. The apparatus which requires no wire connection is independently arranged and convenient to use. Wires are saved. The construction cost is lowered. 2.4GHz frequency points and emission power can be selected at will. Interference from other 2.4GHz wireless equipment can be prevented. The coverage range of the apparatus can be flexibly set.
Description
Technical field
The utility model belongs to the LED lighting technical field, relates in particular to a kind of 2.4GHz wireless LED pwm power expander.
Background technology
Existing LED controller, while needing amplifying power to drive a plurality of light fixture, can only be used wired power expander, adopts the wired connection mode that the pwm signal of driving LED is transferred to the LED light fixture, causes the engineering difficult wiring.And, adopt long cable transmission high-power high-frequency pwm signal, can produce the voltage emission phenomena, cause the pwm signal of LED light fixture side high frequency damped oscillation to occur, the heating of LED light fixture is serious, affects the useful life of light fixture.
Summary of the invention
The utility model is intended to solve the aforementioned problems in the prior.By adopting wireless technology, the detected value of the multi-channel PWM signal of LED controller output is sent, receiving terminal, according to the detected value received, regenerates identical pwm signal, realizes that PWM drives the wireless transmission of wireless signal.Simultaneously, wireless frequency can be selected by toggle switch, and a transmitting terminal can be joined the receiving terminal of any amount.
The technical solution adopted in the utility model is:
A kind of LED illumination PWM drives wireless extension device, it is characterized in that: it comprises transmitting terminal and receiving terminal, transmitting terminal comprises photoelectricity isolated location, single-chip microcomputer processing unit, wireless communication module, and single-chip microcomputer completes duty ratio and the cycle detection function of pwm pulse signal; Receiving terminal comprises wireless communication module, single-chip microcomputer processing unit, pwm signal power stage driver element, and single-chip microcomputer completes the pwm pulse signal regeneration function; The frequency of transmitting terminal and receiving terminal is consistent.
Described LED illumination PWM drives wireless extension device, it is characterized in that, described transmitting terminal is used the multi-channel PWM output signal of LED controller as input, this multi-channel PWM signal is after the photoelectricity isolation, enter the single-chip processor i/o pin, single-chip microcomputer produces the edge interrupt signal, starts 16 bit timing devices, detects high level width and the cycle of pwm pulse signal; Described receiving terminal, according to the PWM duty ratio and the periodic quantity that receive, is used 16 bit timing devices, generates on all four pwm pulse signal, for the driving power pipe.
Described LED illumination PWM drives wireless extension device, it is characterized in that, 6 toggle switchs of transmitting terminal and receiving terminal are for selecting 64 frequencies, each frequency interval 1MHz.
Described LED illumination PWM drives wireless extension device, it is characterized in that, but transmitting terminal choice for use maximum transmission power is the wireless module of 1dbm, 5dbm, 10dbm or 20dbm.
Described LED illumination PWM drives wireless extension device, it is characterized in that, a described transmitting terminal can be joined a plurality of receiving terminals that quantity is not limit.
Described LED illumination PWM drives wireless extension device, it is characterized in that, in described receiving terminal, relay is installed.
The accompanying drawing explanation
Fig. 1 is sending end structure block diagram of the present utility model;
Fig. 2 is photoelectricity isolated location circuit diagram of the present utility model;
Fig. 3 is receiving terminal structured flowchart of the present utility model;
Fig. 4 is apparatus system fundamental diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the transmitting terminal that LED illumination PWM drives wireless extension device comprises photoelectricity isolated location, single-chip microcomputer processing unit, wireless communication module, and single-chip microcomputer completes duty ratio and the cycle detection function of pwm pulse signal.Transmitting terminal is used the multi-channel PWM output signal of LED controller as input, and this multi-channel PWM signal, after the photoelectricity isolation, enters the single-chip processor i/o pin.Single-chip microcomputer produces the edge interrupt signal, starts 16 bit timing devices, detects high level width and the cycle of pwm pulse signal.
Fig. 2 has shown the circuit theory diagrams of described photoelectricity isolated location.After current-limiting resistance (R1, R2, R3) is passed through respectively on three roads PWM input signal (IN1, IN2, IN3), through output (OUT1, OUT2, OUT3) after photoelectrical coupler (U3, U4, U5) isolation, then input the single-chip processor i/o pin.
As shown in Figure 3, receiving terminal comprises single-chip microcomputer processing unit, pwm signal power stage driver element, wireless communication module, and single-chip microcomputer completes the pwm pulse signal regeneration function.Receiving terminal, according to the PWM duty ratio and the periodic quantity that receive, is used 16 bit timing devices, generates on all four pwm pulse signal, for the driving power pipe.
Transmitting terminal and receiving terminal are all used 6 toggle switchs to select 64 frequencies, each frequency interval 1MHz.The frequency of transmitting terminal and receiving terminal is consistent can guarantee that radio communication is normal.Transmitting terminal is used the wireless module of maximum transmission power as 20dbm, 300 meters of maximum coverage ranges.When adjusting the distance when less demanding, can select 1dbm, 5dbm, 10dbm transmitting power, to reduce the interference to other 2.4GHz equipment.
As shown in Figure 4, a transmitting terminal can be joined a plurality of receiving terminals, and the quantity of receiving terminal is unrestricted.If need further to increase coverage, can adopt trunking scheme, namely at receiving terminal place far away, place again a transmitting terminal, the output that is input as receiving terminal of transmitting terminal, then match a plurality of receiving terminals with this transmitting terminal.The transmitting terminal of relaying and receiving terminal need to change frequency to be selected, to avoid and original sender and the mutual interference of receiving terminal phase.
Described LED illumination PWM drives wireless extension device and has following beneficial effect: without line, and independent the installation, easy to use, save wire rod and operating expenses, reduce costs, be specially adapted to not allow to connect up or the occasion of difficult wiring.2.4GHz frequency and transmitting power can select arbitrarily, avoid being subject to the interference of other 2.4GHz wireless device, coverage can arrange flexibly.
Claims (6)
1. a LED illumination PWM drives wireless extension device, it is characterized in that: it comprises transmitting terminal and receiving terminal, transmitting terminal comprises photoelectricity isolated location, single-chip microcomputer processing unit, wireless communication module, and single-chip microcomputer completes duty ratio and the cycle detection function of pwm pulse signal; Receiving terminal comprises wireless communication module, single-chip microcomputer processing unit, pwm signal power stage driver element, and single-chip microcomputer completes the pwm pulse signal regeneration function; The frequency of transmitting terminal and receiving terminal is consistent.
2. LED illumination PWM according to claim 1 drives wireless extension device, it is characterized in that, described transmitting terminal is used the multi-channel PWM output signal of LED controller as input, this multi-channel PWM signal is after the photoelectricity isolation, enter the single-chip processor i/o pin, single-chip microcomputer produces the edge interrupt signal, starts 16 bit timing devices, detects high level width and the cycle of pwm pulse signal; Described receiving terminal, according to the PWM duty ratio and the periodic quantity that receive, is used 16 bit timing devices, generates on all four pwm pulse signal, for the driving power pipe.
3. LED illumination PWM according to claim 1 drives wireless extension device, it is characterized in that, 6 toggle switchs of transmitting terminal and receiving terminal are for selecting 64 frequencies, each frequency interval 1MHz.
4. LED illumination PWM according to claim 3 drives wireless extension device, it is characterized in that, but transmitting terminal choice for use maximum transmission power is the wireless module of 1dbm, 5dbm, 10dbm or 20dbm.
5. according to the described LED illumination of any one in claim 1 to 4 PWM, drive wireless extension device, it is characterized in that, a described transmitting terminal can be joined a plurality of receiving terminals that quantity is not limit.
6. according to the described LED illumination of any one in claim 1 to 4 PWM, drive wireless extension device, it is characterized in that, in described receiving terminal, relay is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202489206U CN203313465U (en) | 2013-05-09 | 2013-05-09 | LED illumination PWM drive wireless expansion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202489206U CN203313465U (en) | 2013-05-09 | 2013-05-09 | LED illumination PWM drive wireless expansion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203313465U true CN203313465U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202489206U Expired - Lifetime CN203313465U (en) | 2013-05-09 | 2013-05-09 | LED illumination PWM drive wireless expansion apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN203313465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089731A1 (en) * | 2013-12-17 | 2015-06-25 | 深圳普得技术有限公司 | Led driving apparatus and driving method and led lamp |
| CN109362142A (en) * | 2018-09-21 | 2019-02-19 | 付志民 | A kind of lighting for medical use implementation method |
-
2013
- 2013-05-09 CN CN2013202489206U patent/CN203313465U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089731A1 (en) * | 2013-12-17 | 2015-06-25 | 深圳普得技术有限公司 | Led driving apparatus and driving method and led lamp |
| CN109362142A (en) * | 2018-09-21 | 2019-02-19 | 付志民 | A kind of lighting for medical use implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Pingtung 519000 Guangdong province Zhuhai Nanping Science and Technology Industrial Park, six road No. 3 building two or three layer 15 Patentee after: ZHUHAI LTECH TECHNOLOGY Co.,Ltd. Address before: Pingtung 519000 Guangdong province Zhuhai Nanping Science and Technology Industrial Park, six road No. 3 building two or three layer 15 Patentee before: ZHUHAI LTECH ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |