CN103139994A - Light-emitting diode (LED) driving device capable of automatically identifying sensor and adaptively controlling sensor - Google Patents
Light-emitting diode (LED) driving device capable of automatically identifying sensor and adaptively controlling sensor Download PDFInfo
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- CN103139994A CN103139994A CN2013100644930A CN201310064493A CN103139994A CN 103139994 A CN103139994 A CN 103139994A CN 2013100644930 A CN2013100644930 A CN 2013100644930A CN 201310064493 A CN201310064493 A CN 201310064493A CN 103139994 A CN103139994 A CN 103139994A
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Abstract
The invention discloses a light-emitting diode (LED) driving device capable of automatically identifying a sensor and adaptively controlling the sensor. The LED driving device capable of automatically identifying the sensor and adaptively controlling the sensor comprises an LED power source driving module, the sensor and a sensor identification and control module, the type of the sensor changes along with the space where an LED light source is positioned, the sensor identification and control module is electrically connected between the LED power source driving module and the sensor and comprises a sensor type identification circuit and a sensor working mode feedback circuit which is connected with the sensor identification and control module in parallel, the sensor identification circuit outputs a corresponding a voltage division ratio, a micro control unit (MCU) judges a corresponding type of the sensor according to the voltage division ratio, the sensor working mode feedback circuit outputs an analog quantity, according to the received analog quantity, and the MCU invokes the working mode matched with the switched-on sensor to achieve the control of the LED light source. The defect that in the prior art, the LED driver can not be compatible with various sensors is overcome, and various sensors can be switched conveniently to achieve the optimization of economic benefits and social benefits.
Description
Technical field
the present invention relates to the LED electronic application field, relate in particular to a kind of identification and the compatible LED drive unit of controlling dissimilar transducer.
Background technology
along with the development of lighting technology, LED light source is just obtaining increasing development as a kind of green light source of new rise, and the utilization of LED is just becoming following trend.In the LED application technology, working method for LED has proposed increasing requirement: as the mode of controlling light source along with human motion required on present market, vary with temperature and control the mode of light source, the infrared control mode, the wireless remote control mode, etc.And to realize top function, and LED is driven proposed new requirement, need on present LED drives, add upper sensor just can realize, as add: human body sensor, temperature sensor, infrared sensor, wireless senser, etc.
on existing market, these transducer connected modes are unification, at LED, drive manufacturer to start, driving is the supporting a kind of transducer to fix only, after production completes, the mode of its transducer cannot be changed easily, and driving power can not be realized compatible easily to various types of transducers.So just cause the reply client's of manufacturer demand response speed slower, in stock more drawback.
and in the use, existing this single driving is owing to cannot switching easily transducer, user's management and control is more loaded down with trivial details, if there is different working methods, the driving power of necessary standby a lot of these single modes, limited its scope of application, and after installing, if need to change mode of operation, must transducer and driving power jointly changed, just can realize the conversion of whole mode of operation.
Summary of the invention
for the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of LED drive unit that can automatically identify and control the dissimilar sensor mode of operation, and can easily switch various transducers in the situation that the LED electric power driving module is constant.
technical scheme provided by the present invention is, but the LED drive unit of a kind of automatic identification sensor Adaptive Control, and it comprises:
the LED electric power driving module, it is built-in with micro-control unit MCU, and has Voltage-output port, grounding ports and at least two receiver ports;
transducer, it is arranged in space, LED light source place to be controlled, and described transducer adopts different types because of the difference in space, described LED light source place;
transducer identification control module, it is connected electrically between described LED electric power driving module and transducer, the working sensor pattern feedback circuit that comprises the sensor type identification circuit and be in parallel with it, described sensor type identification circuit and working sensor pattern feedback circuit have respectively at least one and the signal output port of the corresponding connection of LED electric power driving module receiver port, described transducer identification circuit is exported corresponding voltage ratio to described LED electric power driving module according to the transducer of access, described micro-control unit MCU judges corresponding sensor type according to different voltage ratios, described working sensor pattern feedback circuit is exported analog output to described LED electric power driving module by the transducer of corresponding types, thereby described micro-control unit MCU calls the mode of operation be complementary with the transducer accessed and exports the control of the signal realization of LED light source to LED light source to adjust the LED electric power driving module according to the analog quantity received.
preferably, described sensor type identification circuit comprises the first resistance R 1, the second resistance R 2 that is in series and connects, the other end of described the first resistance R 1 is connected with the Voltage-output port of described LED electric power driving module, described the first resistance R 1 is connected with a receiver port of described LED electric power driving module with the second resistance R 2 common connection ends, the other end ground connection of described the second resistance R 2; Described working sensor pattern feedback circuit comprises the 3rd resistance R 3, the 4th resistance R 4 that is in series and connects, the other end of described the 3rd resistance R 3 is connected with the Voltage-output port of described LED electric power driving module, described the 3rd resistance R 3 is connected with another receiver port of described LED electric power driving module with the 4th resistance R 4 common connection ends, the other end ground connection of described the 4th resistance R 4; Described transducer is in parallel and is connected with the 4th resistance R 4.
preferably, described sensor type difference, described sensor type identification circuit the first resistance R 1 is different with the resistance value of the second resistance R 2, and the resistance value of described working sensor pattern feedback circuit the 3rd resistance R 3 and the 4th resistance R 4 is also different.
preferably, described transducer identification control module is encapsulated as standalone module, and it is connected with described LED electric power driving module and described transducer changeable type.
preferably, described sensor type comprises temperature sensor, photodiode, infrared sensor, human body sensor, wireless senser.
preferably, to export the voltage of described transducer identification control module to be 5V to described LED electric power driving module Voltage-output port.
compared with prior art advantage of the present invention is: set up one due to the present invention for identifying and control the identification control module of multiple sensors on existing LED drive circuit module, having solved LED in the prior art drives and can not carry out compatible drawback to various transducers, and solved manufacturer and user cost is too high, the inconvenience of getting the raw materials ready, get ready the goods, the management and control inconvenience, be not easy to the various drawbacks of changing after use.In the situation that the LED drive circuit module is constant, switch easily various types of transducers, to realize the optimization of economic benefit, social benefit.
The accompanying drawing explanation
accompanying drawing 1 is structural principle schematic diagram of the present invention;
wherein: 1, LED electric power driving module; 2, transducer; 3, transducer identification control module; 4, LED light source.
Embodiment
below in conjunction with accompanying drawing, the present invention is further detailed explanation:
as shown in Figure 1, a kind of LED drive unit of identifying and controlling transducer, comprise LED electric power driving module 1 and transducer 2, described LED electric power driving module 1 comprises that micro-control unit MCU(is not shown), Voltage-output pin, TX pin, RX pin and GND grounding pin, the output of LED electric power driving module 1 is connected with the driving LED light source with LED light source 4.
also be connected with transducer identification control module 3 between LED electric power driving module 1 and transducer 2, transducer recognition control circuit module 3 comprises sensor type identification circuit and the working sensor pattern feedback circuit that is in parallel and connects.Wherein, the sensor type identification circuit comprises the first resistance R 1, the second resistance R 2 that is in series and connects, the other end of the first resistance R 1 is connected with the Voltage-output port of LED electric power driving module, the first resistance R 1 is connected with the TX end of LED electric power driving module with the second resistance R 2 common connection end TX, the other end ground connection GND of the second resistance R 2; Described working sensor pattern feedback circuit comprises the 3rd resistance R 3, the 4th resistance R 4 that is in series and connects, the other end of the 3rd resistance R 3 is connected with the Voltage-output port of LED electric power driving module, the 3rd resistance R 3 is connected with the RX port of LED electric power driving module with the 4th resistance R 4 common connection end RX, the other end ground connection GND of the 4th resistance R 4; Described transducer 2 is in parallel and is connected with the 4th resistance R 4.
due to environment or space difference that LED light source is used, the sensor type adopted also can be different.Sensor type comprises the various transducers of temperature sensor, photodiode, infrared sensor, human body sensor, wireless senser etc.Based on above-mentioned different transducer, in the present invention, the first resistance R 1 of sensor type identification circuit is different with the resistance value of the second resistance R 2, and the resistance value of working sensor pattern feedback circuit the 3rd resistance R 3 and the 4th resistance R 4 is also different.
and transducer identification control module can be encapsulated as standalone module, in use, when adopting different sensors, can use the transducer recognition control circuit module be complementary with this transducer instead, do not need to change the LED electric power driving module, directly change supporting transducer recognition control circuit module and get final product.
below will be elaborated to operation principle of the present invention:
when transducer recognition control circuit module 3 connects dissimilar sensor 2, the first resistance R 1 is different with the resistance value of the second resistance R 2, thereby micro-control unit MCU is according to the different voltage ratio signal judgement sensor types of TX pin.Specifically, the Voltage-output port output voltage of LED electric power driving module 1 is in transducer identification control module 3(the present embodiment, output voltage is 5V), the first resistance R 1 and second resistance R 2 of transducer identification control module 3 are carried out dividing potential drop, by getting the different voltage ratio signals at TX pin place, pass LED electric power driving module 1 back, the micro-control unit MCU in LED electric power driving module 1, according to different voltage ratios, judges corresponding which kind of sensor type.Such as, establishing the first resistance R 1 and the second resistance R 2 is all 10K, and voltage ratio is 2.5V, and corresponding is temperature sensor; If the first resistance R 1 and the second resistance R 2 are respectively 20K and 10K, voltage ratio is 1.67V, and corresponding is infrared sensor.
when transducer recognition control circuit module 3 connects dissimilar sensor 2, the 3rd resistance R 3 is different with the resistance value of the 4th resistance R 4, described micro-control unit MCU controls the mode of operation of this transducer according to the sensor type of having judged, and process analog quantity that described RX pin passes back to adjust output, realize the control to LED light source.
such as, the 3rd resistance R 3 and the 4th resistance R 4 are all 10K, the thermistor that transducer is negative temperature coefficient, when ambient temperature changes from 0 degree to 100 degree, the voltage on the RX pin arrives 2.5V at 0.5V, this analog quantity is passed drive circuit module 1 back, thereby by driving internal calculation to obtain the numerical value of temperature, it is carried out to different processing, adjust drive circuit module 1 output, when too high, power etc. is fallen such as external temperature.For another example, the 3rd resistance R 3 and the 4th resistance R 4 are all 1M, transducer is photodiode, when illumination from 1000 lumens to 10 lumen the time, the voltage on corresponding RX pin be 2.5V to 0.3V, this analog quantity is passed drive circuit module 1 back, thereby by driving internal calculation to obtain different numerical value, it is carried out to different processing, adjust drive circuit module 1 output, realized easily the compatibility of dissimilar sensor.
?
the present invention has set up a transducer identification control module independently be complementary with sensor type in existing LED power drives outside, in use, difference according to sensor type, only need to change corresponding transducer identification control module, without changing existing LED power driving circuit, both having solved LED in the prior art drives and can not carry out compatible drawback to various transducers, solved manufacturer again and user cost is too high, the inconvenience of getting the raw materials ready, get ready the goods, management and control inconvenience, be not easy to the various drawbacks of changing after use.And can switch easily various types of transducers in the situation that the LED drive circuit module is constant, to realize the optimization of economic benefit, social effect.
the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence; those skilled in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the scope of claim protection of the present invention.
Claims (6)
- But 1. the LED drive unit of an automatic identification sensor Adaptive Control, it is characterized in that: it comprises:The LED electric power driving module, it is built-in with micro-control unit MCU, and has Voltage-output port, grounding ports and at least two receiver ports;Transducer, it is arranged in space, LED light source place to be controlled, and described transducer adopts different types because of the difference in space, described LED light source place;Transducer identification control module, it is connected electrically between described LED electric power driving module and transducer, the working sensor pattern feedback circuit that comprises the sensor type identification circuit and be in parallel with it, described sensor type identification circuit and working sensor pattern feedback circuit have respectively at least one and the signal output port of the corresponding connection of LED electric power driving module receiver port, described transducer identification circuit is exported corresponding voltage ratio to described LED electric power driving module according to the transducer of access, described micro-control unit MCU judges corresponding sensor type according to different voltage ratios, described working sensor pattern feedback circuit exports the Sensor Analog Relay System amount of corresponding types to described LED electric power driving module, thereby described micro-control unit MCU calls the mode of operation be complementary with the transducer accessed and exports the control of the signal realization of LED light source to LED light source to adjust the LED electric power driving module according to the analog quantity received.
- 2. but the LED drive unit of automatic identification sensor according to claim 1 Adaptive Control, it is characterized in that: described sensor type identification circuit comprises the first resistance R 1, the second resistance R 2 that is in series and connects, the other end of described the first resistance R 1 is connected with the Voltage-output port of described LED electric power driving module, described the first resistance R 1 is connected with a receiver port of described LED electric power driving module with the second resistance R 2 common connection ends, the other end ground connection of described the second resistance R 2; Described working sensor pattern feedback circuit comprises the 3rd resistance R 3, the 4th resistance R 4 that is in series and connects, the other end of described the 3rd resistance R 3 is connected with the Voltage-output port of described LED electric power driving module, described the 3rd resistance R 3 is connected with another receiver port of described LED electric power driving module with the 4th resistance R 4 common connection ends, the other end ground connection of described the 4th resistance R 4; Described transducer is in parallel and is connected with the 4th resistance R 4.
- 3. but the LED drive unit of automatic identification sensor according to claim 2 Adaptive Control, it is characterized in that: described sensor type difference, described sensor type identification circuit the first resistance R 1 is different with the resistance value of the second resistance R 2, and the resistance value of described working sensor pattern feedback circuit the 3rd resistance R 3 and the 4th resistance R 4 is also different.
- 4. but according to the LED drive unit of the arbitrary described automatic identification sensor in claims 1 to 3 Adaptive Control, it is characterized in that: described transducer identification control module is encapsulated as standalone module, and it is connected with described LED electric power driving module and described transducer changeable type.
- 5. but the LED drive unit of automatic identification sensor according to claim 4 Adaptive Control, it is characterized in that: described sensor type comprises temperature sensor, photodiode, infrared sensor, human body sensor, wireless senser.
- 6. but the LED drive unit of automatic identification sensor according to claim 1 Adaptive Control is characterized in that: the voltage that described LED electric power driving module Voltage-output port exports described transducer identification control module to is 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310064493.0A CN103139994B (en) | 2013-03-01 | 2013-03-01 | Light-emitting diode (LED) driving device capable of automatically identifying sensor and adaptively controlling sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310064493.0A CN103139994B (en) | 2013-03-01 | 2013-03-01 | Light-emitting diode (LED) driving device capable of automatically identifying sensor and adaptively controlling sensor |
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| CN103139994A true CN103139994A (en) | 2013-06-05 |
| CN103139994B CN103139994B (en) | 2014-11-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465960A (en) * | 2015-12-23 | 2016-04-06 | 广东志高暖通设备股份有限公司 | Temperature sensor identification method for air conditioner, and air conditioner |
| CN110618238A (en) * | 2019-09-29 | 2019-12-27 | 欧勒姆电气(珠海)有限公司 | Self-adaptive driving circuit of gas sensor |
| CN112154714A (en) * | 2018-05-11 | 2020-12-29 | 泰连公司 | Local illumination area control system |
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| CN1949110A (en) * | 2006-11-09 | 2007-04-18 | 智勇 | Automatically identifying device of sensor |
| CN101281439A (en) * | 2007-09-11 | 2008-10-08 | 埃派克森微电子(上海)有限公司 | Sensor automatic recognition method |
| US8035310B2 (en) * | 2007-09-28 | 2011-10-11 | Chunghwa Picture Tubes, Ltd. | Circuit for driving light source |
| CN202565547U (en) * | 2012-05-25 | 2012-11-28 | 山东浪潮华光照明有限公司 | LED power supply of extendable control module |
| CN203136267U (en) * | 2013-03-01 | 2013-08-14 | 太仓电威光电有限公司 | LED driving device capable of automatically recognizing and adaptively controlling sensors |
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2013
- 2013-03-01 CN CN201310064493.0A patent/CN103139994B/en not_active Expired - Fee Related
Patent Citations (5)
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| CN1949110A (en) * | 2006-11-09 | 2007-04-18 | 智勇 | Automatically identifying device of sensor |
| CN101281439A (en) * | 2007-09-11 | 2008-10-08 | 埃派克森微电子(上海)有限公司 | Sensor automatic recognition method |
| US8035310B2 (en) * | 2007-09-28 | 2011-10-11 | Chunghwa Picture Tubes, Ltd. | Circuit for driving light source |
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Cited By (5)
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| CN105465960A (en) * | 2015-12-23 | 2016-04-06 | 广东志高暖通设备股份有限公司 | Temperature sensor identification method for air conditioner, and air conditioner |
| CN112154714A (en) * | 2018-05-11 | 2020-12-29 | 泰连公司 | Local illumination area control system |
| CN112154714B (en) * | 2018-05-11 | 2023-08-22 | 泰连公司 | Local illumination zone control system |
| CN110618238A (en) * | 2019-09-29 | 2019-12-27 | 欧勒姆电气(珠海)有限公司 | Self-adaptive driving circuit of gas sensor |
| CN110618238B (en) * | 2019-09-29 | 2022-11-22 | 欧勒姆电气(珠海)有限公司 | Self-adaptive driving circuit of gas sensor |
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| CN103139994B (en) | 2014-11-05 |
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Granted publication date: 20141105 Termination date: 20180301 |