CN202276508U - GPRS-based light-adjustable LED driving power supply - Google Patents
GPRS-based light-adjustable LED driving power supply Download PDFInfo
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- CN202276508U CN202276508U CN2011203591113U CN201120359111U CN202276508U CN 202276508 U CN202276508 U CN 202276508U CN 2011203591113 U CN2011203591113 U CN 2011203591113U CN 201120359111 U CN201120359111 U CN 201120359111U CN 202276508 U CN202276508 U CN 202276508U
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- gprs
- power supply
- led driving
- driving power
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Abstract
The utility model discloses a GPRS-based light-adjustable LED driving power supply which comprises a GPRS module, an MCU control module, an LED driving module, and an AC\DC power supply conversion module. The input terminal of the AC\DC power supply conversion module is directly connected with a commercial power, and a plurality of DC voltages can be output by the output terminal of the AC\DC power supply conversion module. The AC\DC power supply conversion module is used for providing power to the GPRS module, the MCU control module and the LED driving module, respectively. The GPRS module is used for receiving instruction signals sent by a control center and sending feedback state information to the control center. The MCU control module is used for reading and processing the instruction signals received by the GPRS module, and outputting corresponding PWM signals with a duty ratio to control the output of the LED driving module. The LED driving module can be used for outputting invariant direct currents, and is provided with a PWM light modulation interface which can be externally connected with PWM light modulation signals. The GPRS-based light-adjustable LED driving power supply can be directly connected with an LED lamp, can be used for road illumination, venue illumination, household illumination or the like, allows equipment to be simple, is low in cost, convenient in mounting, operation, maintenance and management, and low in maintenance cost. In addition, the operation of the power supply is not restricted by environment and distance.
Description
Technical field
The utility model relates to a kind of LED driving power, relates in particular to a kind of Dimmable LED driving power of GPRS network Long-distance Control capable of using.
Background technology
Development along with the white light LEDs technology; The high-power LED lighting has begun to apply in places such as road lighting, tunnel illumination, venue illuminations; Because the LED light fixture need adopt constant-current driving,, need a LED driving power ability operate as normal so can not directly be electrically connected with the city.The driving power that is used at present the LED light fixture on the market is varied, but most driving powers has only the function of constant current output, does not possess dimming function, can not satisfy the needs that the LED light fixture is regulated brightness.In the practical application, not only to open the light and control and brightness regulation, also need Long-distance Control the LED light fixture.
In order to address the above problem; Someone has invented a kind of remote control LED power supply (publication number: 101868098A), adopt infrared remote control that the LED power supply is carried out switch and regulates control, but remote control distance only has tens meters; And receive the influence of barrier; Can not satisfy the requirement of Long-distance Control, have line traffic control also will lay the control cable specially, can increase the cost of system so again if adopt.
Summary of the invention
To the problems referred to above; The utility model provides the Dimmable LED driving power based on GPRS, it not only can control opening or closing of LED light fixture, regulates the brightness of LED light fixture; Can also carry out Long-distance Control through GPRS network, the restriction of not affected by environment and distance.
The technical scheme of the utility model is: based on the Dimmable LED driving power of GPRS, comprise GPRS module, MCU control module, LED driver module and AC/DC power transfer module; The MCU control module links to each other with the GPRS module through the RS232 serial line interface, and the P3.7 of MCU control module directly links to each other with the PWM dimming interface of LED driver module.Described GPRS module adopts the MC35 of Siemens company.Described MCU control module adopts the STC89C54RD+ chip.Described AC/DC power transfer module can be respectively GPRS module, MCU control module and the power supply of LED driver module.
The beneficial effect of the utility model: control centre through GPRS network can Long-distance Control LED driving power output; The LED light fixture is carried out operations such as switch lamp, light modulation, the LED driving power also can feed back to control centre with real-time state information according to instruction.Through the GPRS network control information transmission, not only guarantee the reliability of control but also increased command range greatly, and without rewiring, easy to use flexible.
Description of drawings
The system global structure figure that Fig. 1 provides for the utility model based on the Dimmable LED driving power of GPRS.
The main program flow chart that Fig. 2 provides for the utility model based on the Dimmable LED driving power of GPRS.
Embodiment
See also Fig. 1, the utility model comprises GPRS module, MCU control module, LED driver module and AC/DC power transfer module; The input of described AC/DC power transfer module directly is connected with civil power, and output can be exported multiple direct voltage, is respectively GPRS module, MCU control module and the power supply of LED driver module; Described GPRS module adopts the MC35 of Siemens company, and this is the first item GPRS module of Siemens company, and advantages of small volume is easy to integratedly, and voice call function is provided, and is beneficial to later function expansion; Described MCU adopts the STC89C54RD+ single-chip microcomputer, and the pwm signal of exportable certain duty ratio directly links to each other with the PWM dimming interface of LED chip for driving; The exportable constant DC of described LED driver module stream, the big I of output current is by the outer meeting resistance setting, and module has the PWM dimming interface, can external PWM dim signal; Control centre sends command signal through GPRS network to the GPRS module, and the GPRS module also can send to state information on the GPRS network, gives control centre through GPRS network with feedback information; MCU reads the command signal that the GPRS module receives through the RS232 serial line interface, the treated output of controlling GPRS module return state information with the judgement back or exporting corresponding pwm signal control LED driver module.
See also Fig. 2, the utlity model has two kinds of functions, i.e. controlled function and query function.Controlled function comprises switch lamp and light modulation, sends the light of different brightness according to the different may command LED lamps of the duty ratio of the pwm signal of MCU output, and when the pwm signal duty ratio was zero, LED was in turn-off; Query function can be inquired about current LED and be in which brightness degree; After system powers on, at first carry out initialization, whether systems inspection GPRS module is normal with being connected of MCU then, and connecting normal system could work; Whether continuous inquiry received command signal after power supply was started working; MCU reads and the processing instruction signal after receiving command signal; Decision instruction is control command or query statement then, if control command is then exported the pwm signal of corresponding duty ratio according to command content; If query statement is then controlled the GPRS module and is returned current brightness degree to control centre.
The utility model can be realized following function: 1. remote control function, remote computer are through the GPRS network transmitting control commands, and MCU resolves and also carries out control corresponding, realizes operations such as switch lamp, light modulation; 2. remote inquiry function: administrative staff can observe the operating state of remote equipment through computer, and when equipment work was unusual, corresponding warning message can appear in computer interface.
In sum, above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; All based on above-mentioned basic ideas, do not break away from various changes and the modification done in this creation spirit and the scope, all should belong to scope disclosed in the utility model.
Claims (4)
1. based on the Dimmable LED driving power of GPRS, it is characterized in that, comprise GPRS module, MCU control module, LED driver module and AC/DC power transfer module; The MCU control module links to each other with the GPRS module through the RS232 serial line interface, and the P3.7 of MCU control module directly links to each other with the PWM dimming interface of LED driver module.
2. the Dimmable LED driving power based on GPRS according to claim 1 is characterized in that, described GPRS module adopts the MC35 of Siemens company.
3. the Dimmable LED driving power based on GPRS according to claim 1 is characterized in that, described MCU control module adopts the STC89C54RD+ chip.
4. the Dimmable LED driving power based on GPRS according to claim 1 is characterized in that, described AC/DC power transfer module can be respectively GPRS module, MCU control module and the power supply of LED driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203591113U CN202276508U (en) | 2011-09-23 | 2011-09-23 | GPRS-based light-adjustable LED driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203591113U CN202276508U (en) | 2011-09-23 | 2011-09-23 | GPRS-based light-adjustable LED driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276508U true CN202276508U (en) | 2012-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203591113U Expired - Fee Related CN202276508U (en) | 2011-09-23 | 2011-09-23 | GPRS-based light-adjustable LED driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291900A (en) * | 2011-09-23 | 2011-12-21 | 天津工业大学 | Dimmable light emitting diode (LED) driving power supply based on general packet radio service (GPRS) |
-
2011
- 2011-09-23 CN CN2011203591113U patent/CN202276508U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291900A (en) * | 2011-09-23 | 2011-12-21 | 天津工业大学 | Dimmable light emitting diode (LED) driving power supply based on general packet radio service (GPRS) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20140923 |
|
| EXPY | Termination of patent right or utility model |